Automobile bright decorative strip surface passivation equipment

Abstract

The utility model relates to automobile bright decoration strip surface passivation equipment which comprises a passivation tank, a pressure supply cavity is formed in the bottom end of the passivation tank, air pressure ejector rods are arranged at the four corners in the passivation tank, connecting plates are arranged at the top ends of the air pressure ejector rods, and a bearing frame is jointly arranged in the connecting plates. The utility model relates to the technical field of surface passivation of bright decorative strips. According to the automobile bright decorative strip surface passivation equipment, the water guide structures and the rollers are arranged in a staggered mode, when the water guide structures push passivation liquid to move, the rollers can be driven to rotate, decorative strip plates in the rollers are turned over, the passivation uniformity degree can be effectively improved, the water guide structures push the passivation liquid to move, and meanwhile the water guide structures push the passivation liquid to move. And the passivation solution can be fully stirred, and the problem that the passivation effect is reduced due to precipitation of the passivation solution is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of surface passivation of bright decorative strips, in particular to a surface passivation device for automobile bright decorative strips. Background Art

[0002] In recent years, with the steady development of my country's economy, people's living standards have been greatly improved, and cars have become a must-have for families.

[0003] The large-scale growth of automobiles has brought convenience to the lives of more and more people. At the same time, people have higher requirements for the appearance design and performance of automobiles, and automobile exterior parts are one of them.

[0004] Currently, the color selection of automobile exterior trims is basically the same as the color of the car body itself. Automobile manufacturers have increasingly higher requirements for the matching of exterior trims and car bodies during the production process. However, due to the different production methods of exterior trims, there is a certain degree of difference between the design color of exterior trims and car body, that is, color difference. Therefore, passivation treatment is generally required before painting to reduce color difference and improve the overall aesthetics of the car body.

[0005] In the prior art, the passivation process of the automotive parts passivation tank is simply to immerse the parts and hangers in the passivation liquid without simultaneous stirring and shaking. Precipitation may exist inside the passivation liquid, resulting in uneven concentration of the passivation liquid. In addition, an oxidation protective layer will first form on the surface of the parts after contacting the passivation liquid. When dead corners are formed in the corners blocked by the oxidation protective layer, sufficient contact between the surface and the liquid cannot be achieved without shaking, which will affect the passivation effect of the parts. Utility Model Content

[0006] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a surface passivation device for automobile bright trim strips, so as to solve the technical problems mentioned in the above background technology.

[0007] The above technical objectives of the present invention are achieved through the following technical solutions:

[0008] A surface passivation device for automobile bright trim strips includes a passivation tank, a pressure supply cavity is provided at the bottom end of the passivation tank, air pressure ejector rods are provided at the four corners of the interior of the passivation tank, the tops of the air pressure ejector rods are provided with connecting plates, and a bearing frame is provided inside the connecting plates;

[0009] Several evenly distributed rollers are arranged inside the supporting frame, and the rollers are rotatably connected to the supporting frame. Several water-guiding structures are arranged at the bottom end of the passivation tank. The number of water-guiding structures is equal to that of rollers, and the water-guiding structures and rollers are staggered.

[0010] Furthermore, the water guide structure includes a water guide pipe, and a top end of the water guide pipe is provided with a plurality of evenly distributed drainage ports, and the positions of the drainage ports correspond to the holes of the supporting frame.

[0011] Furthermore, a driving pump is provided inside the pressure supply chamber, and a drainage pipe of the driving pump is connected to the water pipe.

[0012] Furthermore, the outer peripheral wall of the drum is provided with a plurality of evenly distributed strip-shaped water leakage holes, one end of the drum is provided with an insertion hole, and the inner thread of the insertion hole is connected to the barrel cover.

[0013] Furthermore, a spiral plate is fixedly provided on the outer peripheral wall of the drum, and a plurality of evenly distributed supporting protrusions are provided inside the drum, and the supporting protrusions are made of flexible material.

[0014] Furthermore, a plurality of transverse steel cables are provided on the inner top of the bearing frame, and a plurality of floating air bags are provided on the outer surfaces of the transverse steel cables.

[0015] In summary, the present invention has at least one of the following beneficial technical effects:

[0016] 1. This automotive bright trim surface passivation equipment has a water guide structure and a drum arranged alternately. When the water guide structure pushes the passivation liquid to move, it can drive the drum to rotate, causing the decorative strip plate inside the drum to flip, which can effectively improve the uniformity of passivation. In addition, while pushing the passivation liquid to move, the water guide structure can also fully stir the passivation liquid, avoiding the problem of sedimentation of the passivation liquid and reducing the passivation effect.

[0017] 2. This automotive bright trim surface passivation device, through the provision of a spiral plate, further enhances the impact of water flow on the drum during the flow of water, improving the efficiency and speed of the drum's rotation. At the same time, the provision of supporting protrusions prevents the decorative strip plate from having a large contact area with the inner wall of the drum, further improving the uniformity of passivation.

[0018] 3. This kind of automobile bright trim surface passivation equipment uses a transverse steel cable to connect floating airbags in series. The setting of the floating airbags reduces the impact of the water guide structure on the water surface, prevents the liquid level of the passivation liquid from fluctuating greatly, and prevents the passivation liquid from spilling. In addition, the floating airbags can effectively reduce the contact area between the passivation liquid and the air, thereby reducing the evaporation efficiency of the passivation liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 The utility model is a schematic structural diagram of a surface passivation device for automobile bright trim strips.

[0021] Figure 2 The utility model is a structural schematic diagram of a supporting frame of a surface passivation device for automobile bright trim strips.

[0022] Figure 3 The utility model is a schematic structural diagram of a water guide structure of a surface passivation device for automobile bright trim strips.

[0023] Figure 4 The utility model is a schematic structural diagram of a roller of a surface passivation device for automobile bright trim strips.

[0024] In the figure, 1. passivation tank; 2. pressure supply chamber; 3. air pressure push rod; 4. connecting plate; 5. bearing frame; 6. roller; 601. strip leakage hole; 602. insertion hole; 603. barrel cover; 604. spiral plate; 605. supporting protrusion; 7. water guide structure; 701. water guide pipe; 702. drainage outlet; 703. driving pump; 8. horizontal steel cable; 9. floating airbag. DETAILED DESCRIPTION

[0025] The present invention will be described in further detail below with reference to the accompanying drawings.

[0026] Example:

[0027] Reference Figure 1 - Figure 4 The utility model discloses a surface passivation device for automobile bright trim strips, comprising a passivation tank 1, a pressure supply chamber 2 being provided at the bottom end of the passivation tank 1, air pressure ejector pins 3 being provided at the four corners inside the passivation tank 1, a connecting plate 4 being provided at the top end of the air pressure ejector pins 3, and a bearing frame 5 being provided inside the connecting plates 4;

[0028] Several evenly distributed rollers 6 are arranged inside the supporting frame 5, and the rollers 6 are rotatably connected to the supporting frame 5. Several water-guiding structures 7 are arranged at the bottom end of the passivation tank 1. The number of water-guiding structures 7 is equal to that of rollers 6, and the water-guiding structures 7 and rollers 6 are staggered.

[0029] In this embodiment, four pneumatic push rods 3 are used to cooperate with the connecting plate 4 to connect the supporting frame 5 and the passivation tank 1. When in use, the pneumatic push rod 3 is first lifted upward. At this time, the supporting frame 5 is lifted up, so that the two ends of the drum 6 are higher than the top surface of the passivation tank 1, and the car bright decorative strips that need to be passivated are placed in the interior of the drum 6. At this time, the passivation liquid is poured into the interior of the passivation tank 1 until the liquid level of the passivation liquid is higher than the outer wall of the drum 6, and then the water guiding structure 7 is started to suck in the passivation liquid and discharge it vertically upward. Since the water guiding structure 7 and the drum 6 are staggered, the water guiding structure 7 can drive the drum 6 to rotate when pushing the passivation liquid to move, so that the decorative strip plate inside the drum 6 is flipped, which can effectively improve the uniformity of passivation. In addition, the water guiding structure 7 can also fully stir the passivation liquid while pushing the passivation liquid to move, so as to avoid precipitation of the passivation liquid and the problem of reduced passivation effect.

[0030] In a further preferred embodiment of the present invention, Figure 1-4 As shown, the water guide structure 7 includes a water guide pipe 701 , and a top end of the water guide pipe 701 is provided with a plurality of evenly distributed drainage ports 702 , and the positions of the drainage ports 702 correspond to the holes of the supporting frame 5 .

[0031] In this embodiment, the water pipe 701 is used to install each drain outlet 702, and the adjacent drain outlets 702 correspond to the mesh of the supporting frame 5. Therefore, when the supporting frame 5 is completely dropped, that is, when the pneumatic push rod 3 is in a fully retracted state, the drain outlet 702 will be inserted into the inside of the mesh. At this time, the water discharged through the drain outlet 702 can directly contact the side wall of the drum 6, thereby achieving the effect of pushing the drum 6 to rotate.

[0032] In a further preferred embodiment of the present invention, Figure 1-4 As shown, a driving pump 703 is provided inside the pressure supply chamber 2 , and a drainage pipe of the driving pump 703 is connected to the water pipe 701 .

[0033] In this embodiment, the passivation liquid is sucked in by driving the pump 703, and the passivation liquid is passed into the interior of the water pipe 701 through the drain port 702 of the driving pump 703, and then discharged through the drain port 702 to form an upward flow of water, thereby achieving the purpose of pushing the drum 6.

[0034] In a further preferred embodiment of the present invention, Figure 1-4 As shown, the outer peripheral wall of the drum 6 is provided with a plurality of evenly distributed strip-shaped water leakage holes 601 , an end of the drum 6 is provided with an insertion hole 602 , and the inner thread of the insertion hole 602 is connected to a barrel cover 603 .

[0035] In this embodiment, through the setting of the strip-shaped water leakage hole 601, the passivation liquid can be effectively allowed to enter the interior of the drum 6 and contact the decorative strip inside the drum 6, thereby achieving the effect of passivating the decorative strip. In addition, during the rotation of the drum 6, the decorative strip plate can be effectively brought into full and uniform contact with the passivation liquid, thereby achieving the purpose of improving the passivation effect. In addition, through the setting of the insertion hole 602, it is convenient to insert the decorative strip plate into the interior of the drum 6, and through the setting of the barrel cover 603, it is used to close the drum 6 to prevent the decorative strip plate from slipping during the rotation of the drum 6.

[0036] In a further preferred embodiment of the present invention, Figure 1-4 As shown, a spiral plate 604 is fixedly provided on the outer peripheral wall of the drum 6, and a plurality of evenly distributed supporting protrusions 605 are provided inside the drum 6, and the supporting protrusions 605 are made of flexible material.

[0037] In this embodiment, by setting the spiral plate 604, the influence of the water flow on the drum 6 is further improved during the flow of water, and the efficiency and speed of the rotation of the drum 6 are improved. At the same time, by setting the supporting protrusion 605, the decorative strip plate is prevented from having a large contact area with the inner wall of the drum 6, so as to further improve the uniformity of passivation.

[0038] In a further preferred embodiment of the present invention, Figure 1-4 As shown, a plurality of transverse steel cables 8 are provided on the inner top end of the supporting frame 5 , and a plurality of floating air bags 9 are provided on the outer surfaces of the transverse steel cables 8 .

[0039] In this embodiment, the transverse steel cable 8 is used to connect the floating airbags 9 in series. The setting of the floating airbags 9 reduces the impact of the water-guiding structure 7 on the water surface, prevents the liquid level of the passivation liquid from fluctuating greatly, and prevents the passivation liquid from spilling. In addition, the floating airbags 9 can effectively reduce the contact area between the passivation liquid and the air, thereby reducing the evaporation efficiency of the passivation liquid.

[0040] The embodiments of this specific implementation method are all preferred embodiments of the present utility model, and are not intended to limit the scope of protection of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the scope of protection of the present utility model.

Claims

1. A surface passivation device for automobile bright trim strips, characterized in that: The invention comprises a passivation tank (1), a pressure supply cavity (2) is provided at the bottom end of the passivation tank (1), air pressure push rods (3) are provided at the four corners inside the passivation tank (1), a connecting plate (4) is provided at the top end of each air pressure push rod (3), and a bearing frame (5) is provided inside the connecting plate (4); A plurality of evenly distributed rollers (6) are provided inside the carrying frame (5), and the rollers (6) are rotatably connected to the carrying frame (5). A plurality of water guide structures (7) are provided at the bottom end of the interior of the passivation tank (1), and the number of the water guide structures (7) is equal to that of the rollers (6), and the water guide structures (7) and the rollers (6) are arranged in an alternating manner.

2. The surface passivation equipment for automobile bright trim strips according to claim 1, characterized in that: The water guide structure (7) includes a water guide pipe (701), and a plurality of evenly distributed drainage ports (702) are provided at the top end of the water guide pipe (701). The positions of the drainage ports (702) correspond to the holes of the supporting frame (5).

3. The surface passivation equipment for automobile bright trim strips according to claim 2, characterized in that: A driving pump (703) is provided inside the pressure supply chamber (2), and a drainage pipe of the driving pump (703) is connected to the water pipe (701).

4. The surface passivation equipment for automobile bright trim strips according to claim 3, characterized in that: The outer peripheral wall of the drum (6) is provided with a plurality of evenly distributed strip-shaped water leakage holes (601), one end of the drum (6) is provided with an insertion hole (602), and the inner thread of the insertion hole (602) is connected to a barrel cover (603).

5. The surface passivation equipment for automobile bright trim strips according to claim 4, characterized in that: A spiral plate (604) is fixedly provided on the outer peripheral wall of the roller (6), and a plurality of evenly distributed supporting protrusions (605) are provided inside the roller (6), and the supporting protrusions (605) are made of a flexible material.

6. The surface passivation equipment for automobile bright trim strips according to claim 5, characterized in that: A plurality of transverse steel cables (8) are provided on the inner top end of the bearing frame (5), and a plurality of floating air bags (9) are provided on the outer surfaces of the transverse steel cables (8).

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