Dyeing device for automobile wood ornament

By designing a dyeing device for automotive wood trim, and utilizing a combination of inclined material scooping conveyor belts and discharge conveyor belts, the problem of uneven dyeing of wood trim panels was solved, achieving uniform dyeing and an efficient dyeing process.

CN224239894UActive Publication Date: 2026-05-15NINGBO SBL AUTO ACCESSORIES CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO SBL AUTO ACCESSORIES CO LTD
Filing Date
2025-06-09
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Traditional dyeing methods cannot guarantee a uniform dyeing effect on wood veneer, especially since the dyeing solution cannot fully contact the wood veneer when it is stacked, which affects the dyeing efficiency.

Method used

A dyeing device for automotive wood trim has been designed, including a frame, a dyeing tank, an inclined material scooping conveyor belt, and a material discharge conveyor belt. The material scooping conveyor belt is equipped with a push plate and a drainage channel on its outer side, and the material discharge conveyor belt is equipped with a drain channel. Through the sequential conveying and the design of the conveyor belt, the wood trim is ensured to fully contact the dyeing liquid and drain quickly.

Benefits of technology

It achieves uniform staining of wood veneers and improves staining efficiency, ensuring that each piece of wood veneer can fully contact the staining solution and quickly spin-dry the surface of residual liquid, thereby improving the overall staining effect and process efficiency.

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Abstract

The utility model discloses an automobile wood ornament dyeing device, belongs to the technical field of dyeing equipment, and provides the automobile wood ornament dyeing device which is high in dyeing efficiency and better in dyeing effect. The automobile wood ornament dyeing device comprises a rack, a dyeing pool is fixedly connected to the rack, a first-stage conveying mechanism is arranged on the dyeing pool, and a second-stage conveying mechanism is arranged in the dyeing pool; the secondary conveying mechanism comprises an inclined fishing conveying belt, the lower end of the fishing conveying belt is close to the inner bottom face and the inner wall of one side of the dyeing pool at the same time, the higher end of the fishing conveying belt is located above the other side wall of the dyeing pool, the horizontal projection of the fishing conveying belt is located outside the dyeing pool, and a pushing supporting plate is arranged on the outer side face of the fishing conveying belt. The length direction of the pushing and supporting plate is perpendicular to the moving direction of the material fishing conveying belt. By designing the feeding conveying belt, the automobile wood ornaments needing to be dyed are thrown into the dyeing liquid in the dyeing pool one by one, each automobile wood ornament can make full contact with the dyeing liquid, dye is evenly attached to the automobile wood ornaments, and the dyeing effect is improved.
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Description

Technical Field

[0001] This application relates to the field of dyeing equipment technology, and in particular to a dyeing device for automotive wood trim. Background Technology

[0002] To change the decorative effect of automotive wood trim panels, the processed wood trim panels need to be stained. Since wood trim panels lack porous structures and have few hook-like structures for stable hanging, the traditional staining method is to directly throw the wood trim panels to be stained into the staining solution. In order to improve the staining effect, wood trim panels stacked together are poured into the staining solution together. Since the wood trim panels may not be separated due to stacking, the staining solution cannot fully contact the overlapping parts of the wood trim panels. Even if the soaking time is relatively long, it is difficult to ensure uniform staining. Summary of the Invention

[0003] The purpose of this application is to provide a dyeing device for automotive wood trim that has high dyeing efficiency and better dyeing effect.

[0004] To achieve the above objectives, this application provides an automotive wood trim staining device: comprising a frame, a staining tank fixedly connected to the frame, a primary conveying mechanism on the staining tank, and a secondary conveying mechanism inside the staining tank. The secondary conveying mechanism includes an inclined scooping conveyor belt, the lower end of which is close to both the inner bottom surface and one inner wall of the staining tank and is located below the output end of the primary conveying mechanism. The higher end of the scooping conveyor belt is located above the other side wall of the staining tank, and the horizontal projection of the scooping conveyor belt is outside the staining tank. The outer side of the scooping conveyor belt has a pusher plate, the length direction of which is perpendicular to the movement direction of the scooping conveyor belt, ensuring that the pusher plate can provide a stable upward pushing force to the automotive wood trim.

[0005] As a preferred embodiment, the material scooping conveyor belt is also provided with a dense array of drainage channels, each of which penetrates the inner and outer surfaces of the material scooping conveyor belt, facilitating the rapid removal of automotive wood trim parts and dyeing liquid from the material scooping conveyor belt above the liquid surface.

[0006] As a preferred embodiment, there are several push plates, which are equidistantly arranged along the movement direction of the material scooping conveyor belt, so that the automotive wood trim pieces submerged in the dyeing liquid can be scooped out more evenly.

[0007] As a preferred embodiment, the frame is also fixedly connected to a drain tank, and the drain tank is also equipped with a three-stage conveying mechanism. The three-stage conveying mechanism includes a discharge conveyor belt, one end of which is located below the retrieval conveyor belt, ensuring that the automotive wood trim pieces falling from the retrieval conveyor belt can land on the discharge conveyor belt.

[0008] As a preferred embodiment, the discharge conveyor belt is provided with a dense array of drainage channels, each of which penetrates the inner and outer surfaces of the discharge conveyor belt, facilitating the further removal of residual dyeing liquid from the automotive wood trim.

[0009] As a preferred embodiment, the frame includes a bridging plate fixedly connected between the dyeing tank and the draining tank, a support plate fixedly connected between the bridging plate and the dyeing tank, and a double-shaft frame at the upper end of the support plate. The secondary conveying mechanism also includes a driving roller and a driven roller. A driver is provided on the outer side of the dyeing tank. The driver includes a motor and a reducer fixedly connected to the dyeing tank. The output end of the reducer passes through the side wall of the dyeing tank and is connected to the driving roller. The driven roller is rotatably connected to the double-shaft frame. The two ends of the material scooping conveyor belt are respectively sleeved on the driving roller and the driven roller, driven by the driving roller and kept in a taut state.

[0010] As a preferred embodiment, the three-stage conveying mechanism further includes a rear driven wheel and a rear driving wheel. The rear driven wheel is rotatably connected to the dual-shaft frame and is located below the driven roller. The frame also has a rear axle frame located on the outer side of the drain tank. The rear driving wheel is rotatably connected to the rear axle frame. The two ends of the discharge conveyor belt are respectively sleeved on the rear driven wheel and the rear driving wheel, driven by the rear driving wheel, and kept in a taut state.

[0011] As a preferred embodiment, a support frame is also provided outside the dyeing tank. The support frame includes a front axle frame fixedly connected to the side of the dyeing tank and a single axle frame fixedly connected to the top surface of the dyeing tank. The primary conveying mechanism includes a feeding conveyor belt, a front driven wheel, and a front driving wheel. The front driven wheel is rotatably connected to the front axle frame, and the front driving wheel is rotatably connected to the single axle frame. The feeding conveyor belt is tensioned by the front driven wheel and the front driving wheel. The elastic feeding conveyor belt can help the automotive wood trim parts shake off the small amount of dye liquid adhering to the surface.

[0012] Compared with the prior art, the beneficial effects of this application are as follows:

[0013] (1) By designing a material feeding conveyor belt, the automotive wood trim pieces that need to be dyed are dropped one by one into the dyeing liquid in the dyeing pool, so that each piece of automotive wood trim piece can fully contact the dyeing liquid and be evenly attached to the dye, thus improving the dyeing effect.

[0014] (2) By designing an inclined material scooping conveyor belt, setting a uniformly arranged push plate structure on the outer surface of the material scooping conveyor belt, and opening a dense drainage channel, combined with a discharge conveyor belt with a drainage channel, the draining efficiency of automotive wood trim parts after leaving the dyeing liquid can be effectively improved, thereby ensuring the efficiency of the entire dyeing process. Attached Figure Description

[0015] Figure 1 This is a first three-dimensional schematic diagram of the overall structure of the automotive wood trim staining device.

[0016] Figure 2 This is a second three-dimensional schematic diagram of the overall structure of the automotive wood trim staining device.

[0017] Figure 3 This is a three-dimensional sectional view of the overall structure of the automotive wood trim staining device.

[0018] Figure 4 A three-dimensional structural diagram of the automotive wood trim staining device after the conveyor belt has been removed.

[0019] Figure 5 A three-dimensional cross-sectional view of the automotive wood trim staining device after the conveyor belt has been removed.

[0020] Figure 6 This is a three-dimensional structural diagram of the driver and secondary conveying mechanism of the automotive wood trim staining device.

[0021] Figure 7 This is a three-dimensional structural diagram showing the connection between the driver and the active roller of the automotive wood trim staining device.

[0022] Figure 8 This is a three-dimensional structural diagram of the three-stage conveying mechanism of the automotive wood trim staining device.

[0023] In the diagram: 1. Primary conveyor mechanism; 101. Front driven wheel; 102. Front driving wheel; 103. Feeding conveyor belt; 2. Secondary conveyor mechanism; 201. Driving roller; 202. Driven roller; 203. Scouring conveyor belt; 204. Drainage trough; 205. Push plate; 3. Tertiary conveyor mechanism; 301. Rear driven wheel; 302. Rear driving wheel; 303. Discharge conveyor belt; 304. Drainage trough; 4. Dyeing tank; 5. Driver; 501. Electric motor; 502. Reducer; 6. Support frame; 601. Front axle frame; 602. Single axle frame; 7. Frame; 701. Bridge plate; 702. Support plate; 703. Rear axle frame; 8. Drainage tank; 9. Double axle frame. Detailed Implementation

[0024] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0025] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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. They should not be construed as limiting the specific protection scope of this application.

[0026] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0027] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0028] like Figure 1-8 The automotive wood trim dyeing device shown includes a fixed frame 7, to which a dyeing tank 4 is fixedly connected. A primary conveying mechanism 1 is mounted on the dyeing tank 4. The dyeing tank 4 also has a support 6, which includes a front axle bracket 601 fixedly connected to the side of the dyeing tank 4 and a single axle bracket 602 fixedly connected to the top surface of the dyeing tank 4. The primary conveying mechanism 1 includes a feeding conveyor belt 103, a front driven wheel 101, and a front driving wheel 102. The width of the feeding conveyor belt 103 is greater than that of the automotive wood trim. The maximum size, but smaller than the inner wall width of the dyeing tank 4, is used to transport undyed automotive wood trim into the dyeing tank 4. The front drive wheel 102 is connected to a drive mechanism to drive the front drive wheel 102 to rotate. The front driven wheel 101 is rotatably connected to the front axle frame 601, and the front drive wheel 102 is rotatably connected to the single axle frame 602. The feed conveyor belt 103 is tensioned by the front driven wheel 101 and the front drive wheel 102, and is driven by the front drive wheel 102. The front driven wheel 101 follows.

[0029] The dyeing tank 4 is equipped with a secondary conveying mechanism 2, which includes an inclined material scooping conveyor belt 203. The lower end of the material scooping conveyor belt 203 is close to the inner bottom surface and one inner wall of the dyeing tank 4, and is located below the output end of the primary conveying mechanism 1. This ensures that the automotive wood trim pieces on the primary conveying mechanism 1 can fall onto the secondary conveying mechanism 2 after being submerged below the liquid surface of the dyeing tank 4. The higher end of the material scooping conveyor belt 203 is located above the other side wall of the dyeing tank 4, and the horizontal projection of the material scooping conveyor belt 203 is outside the dyeing tank 4. The higher end of the material scooping conveyor belt 203 is also its output end.

[0030] The outer side of the material scooping conveyor belt 203 has a pusher plate 205 that protrudes significantly from the outer surface of the material scooping conveyor belt 203. The height of the protrusion of the pusher plate 205 is approximately the same as the thickness of the automotive wood trim. The length direction of the pusher plate 205 is perpendicular to the movement direction of the material scooping conveyor belt 203, which can push the automotive wood trim in the dyeing tank 4 upward. There are several pusher plates 205, which are equidistantly arranged along the movement direction of the material scooping conveyor belt 203. The distance between adjacent pusher plates 205 usually needs to be greater than the maximum size of the automotive wood trim so that it can stably follow the material scooping conveyor belt 203 upward. The material scooping conveyor belt 203 is also provided with densely distributed drainage channels 204. The automotive wood trim and the part of the material scooping conveyor belt 203 that has left the liquid surface can be quickly drained of the adhering dyeing liquid through the drainage channels 204. Each drainage channel 204 runs through the inner and outer surfaces of the material scooping conveyor belt 203 to facilitate the downward flow of dyeing liquid.

[0031] The frame 7 is also fixedly connected to a drain tank 8. The frame 7 includes a bridge plate 701 fixedly connected between the dyeing tank 4 and the drain tank 8 to maintain a stable distance between the dyeing tank 4 and the drain tank 8. A support plate 702 is fixedly connected between the bridge plate 701 and the dyeing tank 4 to provide additional lateral support to the dyeing tank 4 to maintain its stability. The upper end of the support plate 702 has a double-shaft frame 9. The secondary conveying mechanism 2 also includes a drive roller 201 and a driven roller 202. The drive roller 201 is located inside the dyeing tank 4 and is close to the inner bottom surface and inner side wall of the dyeing tank 4. The device is equipped with a driver 5, which includes a motor 501 and a reducer 502 fixedly connected to the dyeing tank 4. The output end of the motor 501 is connected to the input end of the reducer 502. The output end of the reducer 502 passes through the side wall of the dyeing tank 4 and is connected to the drive roller 201. The driven roller 202 is rotatably connected to the double shaft frame 9. The two ends of the material scooping conveyor belt 203 are respectively sleeved on the outside of the drive roller 201 and the driven roller 202. The width of the material scooping conveyor belt 203 is smaller than the width of the inner wall of the dyeing tank 4, but not by much, to prevent the automotive wood trim from passing through the gap between the material scooping conveyor belt 203 and the dyeing tank 4.

[0032] The draining tank 8 is also equipped with a three-stage conveying mechanism 3, which is used to transport the dyed automotive wood trim to the next process, such as the drying process. The three-stage conveying mechanism 3 includes a discharge conveyor belt 303, the width of which is smaller than the width of the inner wall of the draining tank 8. One end of the discharge conveyor belt 303 is located below the scooping conveyor belt 203. The discharge conveyor belt 303 has densely distributed drain channels 304, each of which penetrates the inner and outer surfaces of the discharge conveyor belt 303. The dripping liquid residue on the automotive wood trim can enter the draining tank 8 through the drain channels 304. The amount of dyeing liquid collected in the draining tank 8 is usually relatively small and can be collected for a long time. When the amount of dyeing liquid collected in the draining tank 8 is greater than that in the previous process, the dyeing liquid can be collected for a longer period of time. After a certain amount, they can be processed and recycled in a unified manner. The three-stage conveying mechanism 3 also includes a rear driven wheel 301 and a rear driving wheel 302. The rear driven wheel 301 is rotatably connected to the double shaft frame 9 and is located below the driven roller 202 to ensure that the automotive wood trim pieces thrown out by the second-stage conveying mechanism 2 can land on the third-stage conveying mechanism 3. The frame 7 also has a rear axle frame 703 located on the outer side of the drain pool 8. The rear driving wheel 302 is rotatably connected to the rear axle frame 703. The two ends of the discharge conveyor belt 303 are respectively sleeved on the rear driven wheel 301 and the rear driving wheel 302. The rear driving wheel 302 is also connected to a drive mechanism. When the rear driving wheel 302 is driven, it will push the discharge conveyor belt 303 to rotate, and the rear driven wheel 301 will follow the movement.

[0033] Working Principle: This dyeing device is suitable for automotive wood trim parts with an average density greater than water. These parts typically consist of wood panels inlaid with denser metals. During operation, the undyed automotive wood trim parts are conveyed to the dyeing tank 4 by a primary conveyor mechanism 1. The wood trim parts fall into the dyeing tank 4 from the feeding conveyor belt 103 and slowly sink into the dyeing solution. During this process, all parts of the wood trim parts are fully in contact with the dyeing solution and are dyed, especially the wood material, which is deeply soaked. When the wood trim parts, having fully absorbed the dyeing solution, come into contact with the outer surface of the operating retrieval conveyor belt 203, they quickly come into contact with the push plate 205. Since the push plate 205 and the retrieval conveyor belt 203 are integrated and made of soft, elastic material, the contact between the wood trim parts and the push plate 205 will not cause hard contact damage. If the angle of contact between the wood trim parts and the push plate 205 is incorrect, the wood trim parts may flip in the dyeing solution, but... As the rising push plates 205 continuously move upwards, the automotive wood trim pieces are always pushed by one of the push plates 205 and move upwards along with the material scooping conveyor belt 203. When the automotive wood trim pieces leave the surface of the dyeing liquid, the excess dyeing liquid on the surface of the automotive wood trim pieces will be quickly drained through the drainage channel 204. During the process of moving from the liquid surface to the top of the material scooping conveyor belt 203, the automotive wood trim pieces can shake off most of the dyeing liquid on their surface. When the automotive wood trim pieces pass the highest point of the material scooping conveyor belt 203, they will be thrown onto the equally soft and elastic discharge conveyor belt 303. Since the automotive wood trim pieces fall onto the discharge conveyor belt 303 with a certain impact force, although it is not enough to damage the automotive wood trim pieces, due to inertia, the small amount of dyeing liquid adhering to the surface of the automotive wood trim pieces will still be further shaken off. The small amount of dyeing liquid enters the drain pool 8 through the drain channel 304. The automotive wood trim pieces with almost no flowing dyeing liquid will then enter the next drying process under the drive of the discharge conveyor belt 303.

[0034] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A dyeing device for automotive wood trim, characterized in that: The device includes a frame (7) to which a dyeing tank (4) is fixedly connected. A primary conveying mechanism (1) is provided on the dyeing tank (4). A secondary conveying mechanism (2) is provided inside the dyeing tank (4). The secondary conveying mechanism (2) includes an inclined material-scooping conveyor belt (203). The lower end of the material-scooping conveyor belt (203) is close to both the inner bottom surface and one inner wall of the dyeing tank (4) and is located below the output end of the primary conveying mechanism (1). The higher end of the material-scooping conveyor belt (203) is located above the other side wall of the dyeing tank (4). The horizontal projection of the material-scooping conveyor belt (203) is located outside the dyeing tank (4). The outer side of the material-scooping conveyor belt (203) has a push plate (205). The length direction of the push plate (205) is perpendicular to the movement direction of the material-scooping conveyor belt (203).

2. The automotive wood trim staining device as described in claim 1, characterized in that: The material scooping conveyor belt (203) is also provided with a dense array of drainage channels (204), each of which penetrates the inner and outer surfaces of the material scooping conveyor belt (203).

3. The automotive wood trim staining device as described in claim 2, characterized in that: There are several push plates (205), and these push plates (205) are arranged at equal intervals along the movement direction of the material conveyor belt (203).

4. The automotive wood trim staining apparatus as described in any one of claims 1 to 3, characterized in that: The frame (7) is also fixedly connected to a drain pool (8), and a three-stage conveying mechanism (3) is also provided on the drain pool (8). The three-stage conveying mechanism (3) includes a discharge conveyor belt (303), one end of which is located below the scooping conveyor belt (203).

5. The automotive wood trim staining device as described in claim 4, characterized in that: The discharge conveyor belt (303) is provided with a dense array of drainage channels (304), each of which penetrates the inner and outer surfaces of the discharge conveyor belt (303).

6. The automotive wood trim staining device as described in claim 5, characterized in that: The frame (7) includes a bridge plate (701) fixedly connected between the dyeing tank (4) and the drain tank (8). A support plate (702) is fixedly connected between the bridge plate (701) and the dyeing tank (4). The upper end of the support plate (702) has a double shaft frame (9). The secondary conveying mechanism (2) also includes a drive roller (201) and a driven roller (202). The outer side of the dyeing tank (4) is provided with a driver (5). The driver (5) includes a motor (501) fixedly connected to the dyeing tank (4) and a reducer (502). The output end of the reducer (502) passes through the side wall of the dyeing tank (4) and is connected to the drive roller (201). The driven roller (202) is rotatably connected to the double shaft frame (9). The two ends of the material conveyor belt (203) are respectively sleeved on the drive roller (201) and the driven roller (202).

7. The automotive wood trim staining apparatus as described in claim 6, characterized in that: The three-stage conveying mechanism (3) further includes a rear driven wheel (301) and a rear driving wheel (302). The rear driven wheel (301) is rotatably connected to the dual-shaft frame (9) and is located below the driven roller (202). The frame (7) also has a rear axle frame (703) located on the outer side of the drain pool (8). The rear driving wheel (302) is rotatably connected to the rear axle frame (703). The two ends of the discharge conveyor belt (303) are respectively sleeved on the rear driven wheel (301) and the rear driving wheel (302).

8. The automotive wood trim staining apparatus as described in any one of claims 1 to 3, characterized in that: A support (6) is also provided outside the dyeing pool (4). The support (6) includes a front axle frame (601) fixedly connected to the side of the dyeing pool (4) and a single axle frame (602) fixedly connected to the top surface of the dyeing pool (4). The primary conveying mechanism (1) includes a feeding conveyor belt (103), a front driven wheel (101) and a front driving wheel (102). The front driven wheel (101) is rotatably connected to the front axle frame (601), and the front driving wheel (102) is rotatably connected to the single axle frame (602). The feeding conveyor belt (103) is tensioned by the front driven wheel (101) and the front driving wheel (102).