Loudspeaker shell processing and painting device

By designing support and rotation mechanisms, combined with structures such as connecting cylinders, push rods, and electric telescopic rods, the problem of dead angles in speaker housing painting was solved, enabling all-around painting and improving painting efficiency.

CN224157088UActive Publication Date: 2026-04-24CHANGZHOU FHD ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGZHOU FHD ELECTRONICS CO LTD
Filing Date
2025-05-21
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Existing speaker housing painting equipment has blind spots during the painting process, which requires multiple reversals for painting, reducing painting efficiency.

Method used

A speaker housing processing and painting device was designed. By combining a support mechanism and a rotating mechanism, and utilizing a connecting cylinder, push rod, electric telescopic rod, limit ring, adjusting gear, connecting shaft, support plate, pneumatic diaphragm pump, drive motor and spray nozzle, the speaker housing can be painted in all directions, avoiding dead corners.

Benefits of technology

It enables all-around painting of the speaker housing, avoiding painting dead spots and improving painting efficiency.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224157088U_ABST
    Figure CN224157088U_ABST
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Abstract

The utility model relates to a processing and painting device for a loudspeaker shell, and aims to solve the technical problems that the current shell is adsorbed on one side of an adsorption assembly and cannot be painted, so that dead angles exist in shell painting, the shell needs to be turned to be painted again after painting is completed, and the shell painting efficiency is greatly reduced. The supporting mechanism comprises a connecting cylinder rotationally penetrating through the bottom end of an inner cavity of the paint spraying box, a bearing is installed between the connecting cylinder and the paint spraying box, a plurality of rectangular holes are formed in the outer side of the connecting cylinder and communicate with the inner cavity of the connecting cylinder, and connecting plates are fixedly connected to the portions, on the two sides of the rectangular holes, of the connecting cylinder; according to the paint spraying device for the loudspeaker shell, comprehensive paint spraying can be carried out on the loudspeaker shell, then the situation that when paint spraying is carried out on the loudspeaker shell, dead corners exist, and paint spraying needs to be carried out for many times is avoided, and the paint spraying efficiency of the loudspeaker shell is further improved.
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Description

Technical Field

[0001] This utility model relates to the field of speaker housing processing, specifically a speaker housing processing and painting device. Background Technology

[0002] In order to better adapt to subsequent production needs, the surface of the speaker housing usually needs to be sprayed during the production process. The spraying process effectively protects the speaker housing and also plays a good aesthetic role.

[0003] According to the published patent CN217888347U, a coloring and painting device for speaker housing processing includes a paint spraying box. A support frame is fixedly installed at the top of the paint spraying box, and a first top plate is fixedly installed at the top of the support frame. A motor with a vertically downward output shaft is fixedly installed at the bottom of the first top plate. An adsorption component is coaxially connected to the output shaft of the motor. A circular through hole for the adsorption component to pass through is opened at the top of the paint spraying box. A paint storage tank is fixedly installed on one side of the paint storage tank. An oil pump connected to the inside of the paint spraying box is fixedly installed at the top of the paint storage tank. A liquid delivery pipe is connected to the output end of the oil pump. A vertically arranged liquid guide pipe is fixedly installed on one side of the inside of the paint spraying box. In actual use, this invention can effectively improve the spraying effect, avoid uneven paint application, and ensure that excess paint is effectively recycled. In traditional applications, the housing is adsorbed on one side of the adsorption component and cannot be painted, resulting in dead corners in the paint spraying process. Therefore, after painting, the housing needs to be turned around and painted again, which greatly reduces the efficiency of the housing painting process. Therefore, a new technical solution needs to be designed to address this issue. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a speaker housing processing and painting device to solve the technical problem that the current housing cannot be painted when it is adsorbed on one side of the adsorption component, resulting in dead corners in the housing painting. Therefore, after the painting is completed, the housing needs to be turned around and painted again, which greatly reduces the efficiency of housing painting.

[0005] To achieve the objective of this utility model, the technical solution adopted is as follows: A speaker housing processing and painting device is designed, comprising:

[0006] A support mechanism includes a connecting cylinder that rotatably passes through the bottom of the inner cavity of a paint spray box. A bearing is installed between the connecting cylinder and the paint spray box. Multiple rectangular holes are opened on the outer side of the connecting cylinder, and each of the rectangular holes communicates with the inner cavity of the connecting cylinder. Connecting plates are fixedly connected to the connecting cylinder on both sides of the rectangular holes. A connecting shaft is rotatably connected between two connecting plates through a bearing. An adjusting gear is fixedly connected to the middle of the connecting shaft between the two connecting plates. Both ends of the connecting shaft rotatably pass through the connecting plates. Fixed plates are fixedly connected to both ends of the connecting shaft. A support plate is fixedly connected between two fixed plates.

[0007] Adjustment mechanism, used to adjust the angle at which the support plate unfolds;

[0008] The rotating mechanism is used to drive the speaker housing to rotate for painting.

[0009] Preferably, the adjusting mechanism includes a push rod disposed inside the connecting cylinder, a plurality of limiting rings fixedly connected to the outer side of the push rod, the plurality of limiting rings being equidistantly distributed, the adjusting gear meshing perpendicularly with the limiting rings, support legs fixedly connected to both sides of the bottom of the paint spray box, a mounting plate fixedly connected between two of the support legs, an electric telescopic rod fixedly connected to one end of the mounting plate near the paint spray box, and the driving end of the electric telescopic rod slidingly penetrating through the paint spray box and fixedly connected to the bottom of the push rod.

[0010] Preferably, the rotating mechanism includes a driven gear fixedly connected to the outside of the connecting cylinder, the driven gear being positioned below the paint spray box, a drive motor being fixedly installed on one side of the bottom of the paint spray box, and a driving gear being fixedly connected to the driving end of the drive motor, the driving gear meshing with the driven gear.

[0011] Preferably, a spray pipe is fixedly installed inside the spray booth. The spray pipe is rectangular and has multiple nozzles connected to its inner side. A paint storage tank is fixedly installed at one end of the outer side of the spray booth. A pneumatic diaphragm pump is installed on the top of the paint storage tank. The suction end of the pneumatic diaphragm pump is connected to the paint storage tank, and the discharge end of the pneumatic diaphragm pump is connected to a discharge pipe. The discharge pipe passes through the spray booth and is connected to the spray pipe.

[0012] Preferably, an anti-slip pad is fixedly connected to the surface of the support plate.

[0013] Preferably, the connecting tube is placed in the middle of the paint spray pipe, and the height of the paint spray pipe is greater than the length of the connecting tube inside the paint spray box.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention combines a connecting cylinder, push rod, electric telescopic rod, limiting ring, adjusting gear, connecting shaft, support plate, pneumatic diaphragm pump, drive motor, driving gear, driven gear, and nozzle. The connecting cylinder and support plate are inserted into the through hole of the speaker housing for mounting the speaker. Activating the electric telescopic rod pushes the push rod upwards, causing the limiting ring to rotate the adjusting gear counterclockwise. This causes the support plate to rotate around the connecting shaft, supporting the speaker housing within the through hole and thus limiting its position. The pneumatic diaphragm pump then sprays paint from the storage tank through the nozzle onto the outside of the speaker housing. During painting, the drive motor rotates the driving gear, which in turn rotates the connecting cylinder and speaker housing. Because the nozzle is positioned above, to the sides, and below the speaker housing, it can paint the entire housing during rotation, avoiding dead zones and the need for multiple coats, thus improving the efficiency of speaker housing painting. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the connection structure between the rotating mechanism and the connecting cylinder of this utility model;

[0018] Figure 3 This is a cross-sectional view of the connection between the connecting cylinder and the push rod of this utility model.

[0019] Figure 4 This is an enlarged view of section A of this utility model.

[0020] In the diagram: 1. Spray paint tank; 11. Support leg; 2. Connecting cylinder; 21. Electric telescopic rod; 22. Mounting plate; 23. Support plate; 24. Driven gear; 25. Drive motor; 26. Drive gear; 27. Push rod; 28. Fixing plate; 29. ​​Limiting ring; 210. Rectangular hole; 211. Adjusting gear; 212. Connecting plate; 213. Connecting shaft; 3. Paint storage tank; 31. Pneumatic diaphragm pump; 32. Discharge pipe; 33. Spray paint pipe; 34. Spray nozzle; 4. Anti-slip mat. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0022] Example 1: A speaker housing processing and painting apparatus, see [link / reference] Figures 1 to 4The system includes a support mechanism, comprising a connecting cylinder 2 that rotatably penetrates the bottom of the inner cavity of a paint spray box 1. A bearing is installed between the connecting cylinder 2 and the paint spray box 1. Multiple rectangular holes 210 are formed on the outer side of the connecting cylinder 2, all communicating with the inner cavity of the connecting cylinder 2. Connecting plates 212 are fixedly connected to the connecting cylinder 2 on both sides of each rectangular hole 210. A connecting shaft 213 is rotatably connected between two connecting plates 212 via a bearing. An adjusting gear 211 is fixedly connected to the middle of the connecting shaft 213 between the two connecting plates 212. Both ends of the connecting shaft 213 rotatably pass through the connecting plate 212. Both ends of the connecting shaft 213 are fixedly connected to a fixing plate 28, and a support plate 23 is fixedly connected between the two fixing plates 28. An adjustment mechanism is used to adjust the unfolding angle of the support plate 23. The adjustment mechanism includes a push rod 27 disposed inside the connecting cylinder 2. Multiple limiting rings 29 are fixedly connected to the outer side of the push rod 27. The multiple limiting rings 29 are equidistantly distributed. The adjusting gear 211 meshes perpendicularly with the limiting rings 29. Support legs 11 are fixedly connected to both sides of the bottom of the paint spray box 1. Two of the support legs 11... A mounting plate 22 is fixedly connected between the spray gun 1 and the push rod 27. An electric telescopic rod 21 is fixedly connected to one end of the mounting plate 22 near the spray gun 1. The drive end of the electric telescopic rod 21 slides through the spray gun 1 and is fixedly connected to the bottom of the push rod 27. The rotating mechanism includes a driven gear 24 fixedly connected to the outside of the connecting cylinder 2. The driven gear 24 is positioned below the spray gun 1. A drive motor 25 is fixedly installed on one side of the bottom of the spray gun 1. A drive gear 26 is fixedly connected to the drive end of the drive motor 25. The drive gear 26 meshes with the driven gear 24. A spray pipe 33 is fixedly installed inside the spray box 1. The spray pipe 33 is rectangular and has multiple nozzles 34 connected to its inner side. A paint storage tank 3 is fixedly installed at one end of the outer side of the spray box 1. A pneumatic diaphragm pump 31 is installed on the top of the paint storage tank 3. The suction end of the pneumatic diaphragm pump 31 is connected to the paint storage tank 3, and the discharge end of the pneumatic diaphragm pump 31 is connected to a discharge pipe 32. The discharge pipe 32 passes through the spray box 1 and is connected to the spray pipe 33. A connecting cylinder 2 is placed in the middle of the spray pipe 33, and the height of the spray pipe 33 is greater than the length of the connecting cylinder 2 inside the spray box 1.

[0023] During operation, the connecting cylinder 2 and the support plate 23 are inserted into the through hole of the speaker housing for mounting the speaker. The electric telescopic rod 21 is activated to push the push rod 27 upward, which in turn drives the adjusting gear 211 to rotate counterclockwise in conjunction with the limiting ring 29. Consequently, the support plate 23 rotates around the connecting shaft 213 and is supported in the through hole of the speaker housing for mounting the speaker, thus limiting the speaker housing. Then, the pneumatic diaphragm pump 31 is activated to spray the paint in the paint tank 3 through the spray nozzle 34 to paint the outside of the speaker housing. During painting, the drive motor 25 is activated to drive the drive gear 26 to rotate, which in turn drives the connecting cylinder 2 and the speaker housing to rotate in conjunction with the driven gear 24. Since the spray nozzle 34 is located above, on both sides and below the speaker housing, the spray nozzle 34 can spray paint the entire speaker housing when the speaker housing rotates, thus avoiding dead corners during speaker housing painting and requiring multiple sprays, further improving the efficiency of speaker housing painting.

[0024] Further, see Figure 2 The surface of the support plate 23 is fixedly connected with an anti-slip pad 4. The anti-slip pad 4 increases the friction between the support plate 23 and the through hole for mounting the speaker, thereby improving the firmness of the support plate 23 in fixing the speaker housing.

[0025] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

[0026] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A device for processing and painting speaker housings, characterized in that, include: The support mechanism includes a connecting cylinder (2) that rotatably penetrates the bottom of the inner cavity of the paint spray box (1). A bearing is installed between the connecting cylinder (2) and the paint spray box (1). Multiple rectangular holes (210) are opened on the outer side of the connecting cylinder (2). The multiple rectangular holes (210) are all connected to the inner cavity of the connecting cylinder (2). A connecting plate (212) is fixedly connected to the connecting cylinder (2) on both sides of the rectangular holes (210). A connecting shaft (213) is rotatably connected between the two connecting plates (212) through the bearing. An adjusting gear (211) is fixedly connected in the middle of the connecting shaft (213) between the two connecting plates (212). Both ends of the connecting shaft (213) rotatably penetrate the connecting plate (212). Both ends of the connecting shaft (213) are fixedly connected to the fixing plate (28). A support plate (23) is fixedly connected between the two fixing plates (28). An adjustment mechanism is used to adjust the angle at which the support plate (23) unfolds; The rotating mechanism is used to drive the speaker housing to rotate for painting.

2. The speaker housing processing and painting apparatus as described in claim 1, characterized in that, The adjustment mechanism includes a push rod (27) disposed inside the connecting cylinder (2). Multiple limiting rings (29) are fixedly connected to the outside of the push rod (27). The multiple limiting rings (29) are equidistantly distributed. The adjustment gear (211) meshes perpendicularly with the limiting rings (29). Support legs (11) are fixedly connected to both sides of the bottom of the paint spray box (1). An mounting plate (22) is fixedly connected between two support legs (11). An electric telescopic rod (21) is fixedly connected to one end of the mounting plate (22) near the paint spray box (1). The driving end of the electric telescopic rod (21) slides through the paint spray box (1) and is fixedly connected to the bottom of the push rod (27).

3. The speaker housing processing and painting apparatus as described in claim 1, characterized in that, The rotating mechanism includes a driven gear (24) fixedly connected to the outside of the connecting cylinder (2). The driven gear (24) is located below the paint spray box (1). A drive motor (25) is fixedly installed on one side of the bottom of the paint spray box (1). A drive gear (26) is fixedly connected to the drive end of the drive motor (25). The drive gear (26) meshes with the driven gear (24).

4. The speaker housing processing and painting apparatus as described in claim 1, characterized in that, A paint spraying tube (33) is fixedly installed inside the paint spraying box (1). The paint spraying tube (33) is rectangular. Multiple nozzles (34) are connected to the inner side of the paint spraying tube (33). A paint storage tank (3) is fixedly installed at one end of the outer side of the paint spraying box (1). A pneumatic diaphragm pump (31) is installed on the top of the paint storage tank (3). The suction end of the pneumatic diaphragm pump (31) is connected to the paint storage tank (3). The discharge end of the pneumatic diaphragm pump (31) is connected to a discharge pipe (32). The discharge pipe (32) passes through the paint spraying box (1) and is connected to the paint spraying tube (33).

5. The speaker housing processing and painting apparatus as described in claim 1, characterized in that, The surface of the support plate (23) is fixedly connected with an anti-slip pad (4).

6. The speaker housing processing and painting apparatus as described in claim 1, characterized in that, The connecting tube (2) is placed in the middle of the paint spraying tube (33), and the height of the paint spraying tube (33) is greater than the length of the connecting tube (2) inside the paint spraying box (1).