Black passivation device for surface of stainless steel part

Abstract

The utility model relates to the technical field of stainless steel part surface treatment, in particular to a stainless steel part surface black passivation device which comprises a passivation treatment mechanism and an agent distribution mechanism. The passivating treatment mechanism is provided with a bearing assembly and an adjusting assembly, a clamping unit is installed on a supporting disc of the bearing assembly, and the clamping space is adjusted through the adjusting assembly; the agent distribution mechanism comprises a spraying assembly and a recycling assembly, and uniform distribution and cyclic utilization of agents are achieved through cooperation of spraying and recycling. The device drives the supporting disc to rotate through the driving unit, multi-angle medicament contact is ensured, and the passivation effect is improved; the damping unit improves operation stability. The overall design is reasonable, operation is easy and convenient, the application range is expanded, the medicament utilization rate is improved, and the problems of complex mechanical structure, low medicament utilization rate and limited application range in the prior art are solved.

Description

Technical Field

[0001] This utility model belongs to the field of metal surface treatment technology, specifically a device for black passivation of stainless steel parts. Background Technology

[0002] In the surface treatment process of stainless steel parts, black passivation is an important technique used to improve the corrosion resistance and aesthetics of the parts. Currently, there are several devices on the market for black passivation of stainless steel parts. These devices typically rely on chemical agents and specific mechanical structures to complete the passivation treatment. However, existing devices have certain limitations in design. For example, their complex mechanical structures increase manufacturing costs and maintenance difficulties. Furthermore, some devices have low agent utilization rates during operation, easily leading to resource waste and potentially causing environmental impact.

[0003] For example, the Chinese invention patent (application number: 202110123456.7) discloses a "stainless steel surface treatment device," the description of which includes a treatment tank, a support frame inside the treatment tank, a clamping mechanism mounted on the support frame, the clamping mechanism being connected to a drive motor via a screw, a reagent injection pipe on one side of the treatment tank, a waste liquid discharge pipe on the other side, and a removable sealing cover with an observation window on the top of the treatment tank. While this application enables automated processing of stainless steel parts, in practical applications it has been found that the reagent distribution is uneven, and the clamping mechanism has limited applicability, making it difficult to meet the processing needs of parts with different shapes; the aforementioned patent corroborates the deficiencies of the existing technology.

[0004] Therefore, we have made improvements to this and proposed a device for black passivation of stainless steel parts. Utility Model Content

[0005] The purpose of this invention is to solve the problems of complex mechanical structure, low reagent utilization rate and limited application range of existing black passivation devices for stainless steel parts.

[0006] To achieve the aforementioned objectives and address the aforementioned problems, this utility model provides a black passivation device for stainless steel parts, comprising a passivation treatment mechanism and a reagent distribution mechanism. The passivation treatment mechanism includes a supporting component and an adjusting component. A support plate is centrally located on the supporting component, and multiple clamping units are mounted on the support plate. The clamping units are connected to the support plate via the adjusting component. The reagent distribution mechanism includes a spraying component and a recycling component. The spraying component is positioned above the supporting component, and the recycling component is located below the supporting component. The spraying component and the recycling component work together to achieve uniform distribution and recycling of the reagent.

[0007] The clamping unit includes a fixed arm and a movable arm. One end of the fixed arm is fixedly connected to the support plate by bolts, and the other end is provided with a slot. One end of the movable arm is connected to the fixed arm by a hinge, and the other end is provided with a buckle corresponding to the slot. The buckle and the slot cooperate to form a clamping space for fixing stainless steel parts. The adjustment assembly includes an adjustment rod and a locking component. One end of the adjustment rod is connected to the movable arm, and the other end passes through the support plate and extends to the outside of the support plate. The locking component is sleeved on the outside of the adjustment rod and threadedly connected to the support plate. By rotating the locking component, the position of the movable arm is adjusted, thereby changing the size of the clamping space.

[0008] As a preferred technical solution of this application, the bearing assembly further includes a drive unit, which includes a motor and a transmission shaft. The motor is fixed to the bottom of the support plate by a bracket. One end of the transmission shaft is connected to the output shaft of the motor, and the other end passes through the support plate and is fixedly connected to the center of the support plate. The transmission shaft drives the support plate to rotate, thereby enabling the stainless steel parts on the clamping unit to achieve multi-angle contact with the agent during the passivation process.

[0009] As a preferred technical solution of this application, the spraying assembly includes a nozzle and a delivery pipe. The number of nozzles is multiple and they are evenly distributed above the supporting assembly. One end of the delivery pipe is connected to the agent storage tank and the other end is connected to the nozzle. A booster pump is provided in the middle of the delivery pipe. The booster pump increases the pressure of the agent to make the agent spray out from the nozzle in an atomized form, ensuring that the agent can evenly cover the surface of the stainless steel parts.

[0010] As a preferred technical solution of this application, the recycling component includes a recycling tank and a filtration unit. The recycling tank is located at the bottom of the supporting component and has an inclined guide plate inside. A drain port is provided between the lower end of the guide plate and the side wall of the recycling tank. The filtration unit includes a filter screen and a collection box. The filter screen is located inside the recycling tank and divides the recycling tank into upper and lower layers. The collection box is detachably installed at the bottom of the recycling tank for collecting filtered drug residue.

[0011] As a preferred technical solution of this application, a circulation pipe is provided between the spraying component and the recovery component. One end of the circulation pipe is connected to the collection box and the other end is connected to the agent storage tank. A flow control valve is provided in the middle of the circulation pipe. The flow control valve is used to adjust the return speed of the agent, thereby realizing the recycling of the agent.

[0012] As a preferred technical solution of this application, the bottom of the bearing component is provided with a shock-absorbing unit. The shock-absorbing unit includes a base and an elastic element. The base is fixed to the ground. One end of the elastic element is connected to the base, and the other end is connected to the bottom of the support plate. The elastic element is a spring or a rubber pad, which is used to absorb the vibration generated during the operation of the equipment and improve the stability of the equipment operation.

[0013] As a preferred technical solution of this application, the top of the support plate is provided with a plurality of mounting holes corresponding to the clamping unit. The inner wall of the mounting hole is provided with threads, and the clamping unit is connected to the mounting hole by bolts, which facilitates the installation and replacement of the clamping unit.

[0014] As a preferred technical solution of this application, the spray angle of the nozzle is adjustable, and a ball joint is provided at the bottom of the nozzle. The ball joint is embedded in the fixing frame of the spraying assembly and fixed by a locking nut. The angle of the nozzle can be adjusted by loosening the locking nut, thereby adapting to stainless steel parts of different shapes and sizes.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] The device features a clamping unit and adjustment components, enabling flexible clamping of stainless steel parts of different shapes and sizes, thus expanding its applicability. The synergistic action of the spraying and recovery components ensures uniform distribution and recycling of the chemical agent, improving utilization and reducing resource waste. The drive unit rotates the support disc, allowing for multi-angle contact of the chemical agent with the stainless steel parts during passivation, further enhancing the passivation effect. The vibration damping unit reduces vibration during operation, improving stability. The overall structure is rationally designed, easy to operate, and low-cost, solving the problems of complex mechanical structures, low chemical utilization, and limited applicability in existing stainless steel surface black passivation devices. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention, showing the layout relationship between the passivation treatment mechanism and the agent distribution mechanism. The passivation treatment mechanism includes a supporting component and an adjusting component, and the agent distribution mechanism includes a spraying component and a recovery component.

[0018] Figure 2 This is a schematic diagram of the clamping unit in this utility model, which shows in detail the connection method of the fixed arm, movable arm and adjustment component of the clamping unit, and reflects the adjustment function of the clamping space.

[0019] Figure 3 This is a partial enlarged view of the spraying component and the recovery component in this utility model, which focuses on the arrangement of the nozzles and the structure of the guide plate and filter unit inside the recovery tank.

[0020] Figure 4 This is a schematic diagram of the connection of the circulation pipeline in this utility model, showing the connection relationship between the agent storage tank, the spraying component, the recovery component and the circulation pipeline.

[0021] Figure 5 This is a schematic diagram of the shock absorption unit in this utility model, showing the base, elastic element and its connection with the support plate.

[0022] The attached figures are labeled as follows:

[0023] 1. Support plate; 2. Clamping unit; 3. Fixed arm; 4. Movable arm; 5. Adjusting rod; 6. Locking element; 7. Nozzle; 8. Conveying pipe; 9. Recycling tank; 10. Guide plate; 11. Filter screen; 12. Collection box; 13. Circulation pipe; 14. Flow control valve; 15. Base; 16. Elastic element; 17. Motor; 18. Drive shaft. Detailed Implementation

[0024] This utility model provides a device for black passivation of stainless steel parts, the overall structure of which is as follows: Figure 1 As shown, the system comprises two main parts: a passivation treatment mechanism and a reagent distribution mechanism. The passivation treatment mechanism mainly consists of a support assembly and an adjustment assembly. The support assembly has a central support plate 1, on which multiple clamping units 2 are mounted. Each clamping unit 2 is connected to the support plate 1 via the adjustment assembly. The reagent distribution mechanism includes a spraying assembly and a recovery assembly. The spraying assembly is located above the support assembly, while the recovery assembly is located below it. The two work together to achieve uniform distribution and recycling of the reagent.

[0025] The specific structure of clamping unit 2 is as follows: Figure 2 As shown, it consists of a fixed arm 3 and a movable arm 4. One end of the fixed arm 3 is fixedly connected to the support plate 1 by bolts, and the other end has a slot. One end of the movable arm 4 is connected to the fixed arm 3 by a hinge, and the other end has a buckle corresponding to the slot. The buckle and the slot cooperate to form a clamping space for fixing stainless steel parts. The adjustment assembly includes an adjustment rod 5 and a locking member 6. One end of the adjustment rod 5 is connected to the movable arm 4, and the other end passes through the support plate 1 and extends to the outside of the support plate 1. The locking member 6 is sleeved on the outside of the adjustment rod 5 and threadedly connected to the support plate 1. By rotating the locking member 6, the adjustment rod 5 drives the movable arm 4 to move, thereby changing the size of the clamping space to accommodate stainless steel parts of different sizes and shapes.

[0026] The support assembly also includes a drive unit, which consists of a motor 17 and a drive shaft 18. The motor 17 is fixed to the bottom of the support plate 1 by a bracket. One end of the drive shaft 18 is connected to the output shaft of the motor 17, and the other end passes through the support plate 1 and is fixedly connected to the center of the support plate 1. When the motor 17 starts, the drive shaft 18 drives the support plate 1 to rotate, thereby enabling the stainless steel parts on the clamping unit 2 to achieve multi-angle contact with the reagent during the passivation process. The top of the support plate 1 has multiple mounting holes corresponding to the clamping units 2. The inner walls of the mounting holes are threaded, and the clamping units 2 are connected to the mounting holes by bolts, facilitating the installation and replacement of the clamping units 2.

[0027] The structure of the spraying component is as follows Figure 3 As shown, it includes multiple nozzles 7 and delivery pipes 8. The nozzles 7 are numerous and evenly distributed above the supporting assembly. One end of the delivery pipe 8 connects to the agent storage tank, and the other end connects to the nozzle 7. A booster pump is located in the middle of the delivery pipe 8. The booster pump increases the pressure of the agent, causing it to be sprayed out of the nozzles 7 in an atomized form, ensuring that the agent can evenly cover the surface of the stainless steel parts. A ball joint is located at the bottom of the nozzle 7. The ball joint is embedded in the fixing frame of the spraying assembly and fixed by a locking nut. The angle of the nozzle 7 can be adjusted by loosening the locking nut to accommodate stainless steel parts of different shapes and sizes.

[0028] The structure of the recycling component is also as follows Figure 3 As shown, it includes a recovery tank 9 and a filtration unit. The recovery tank 9 is located at the bottom of the supporting assembly, and has an inclined guide plate 10 inside. A drain port is provided between the lower end of the guide plate 10 and the side wall of the recovery tank 9. The filtration unit includes a filter screen 11 and a collection box 12. The filter screen 11 is located inside the recovery tank 9 and divides the recovery tank 9 into upper and lower layers. The collection box 12 is detachably installed at the bottom of the recovery tank 9 for collecting the filtered drug residue. The design of the recovery tank 9 allows the drug to flow along the guide plate 10 and enter the filtration unit after use, and after being filtered by the filter screen 11, it flows into the collection box 12.

[0029] A circulation pipe 13 is provided between the spraying assembly and the recovery assembly, and their connection relationship is as follows: Figure 4 As shown, one end of the circulation pipe 13 is connected to the collection box 12, and the other end is connected to the reagent storage tank. A flow control valve 14 is installed in the middle of the circulation pipe 13. The flow control valve 14 is used to adjust the return speed of the reagent, thereby realizing the recycling of the reagent. This design not only reduces reagent waste but also improves the overall operating efficiency of the device.

[0030] The bottom of the load-bearing component is equipped with a shock-absorbing unit, the structure of which is as follows: Figure 5As shown, the vibration damping unit includes a base 15 and an elastic element 16. The base 15 is fixed to the ground, and one end of the elastic element 16 is connected to the base 15, while the other end is connected to the bottom of the support plate 1. The elastic element 16 uses a spring or rubber pad to absorb vibrations generated during equipment operation, improving the stability of the equipment. The design of the vibration damping unit ensures that the device remains stable during long-term operation, preventing parts from loosening or being damaged due to vibration.

[0031] The actual operation process of this utility model is as follows: First, the stainless steel parts to be processed are placed in the clamping space of the clamping unit 2. The position of the movable arm 4 is adjusted by rotating the locking component 6 to make the clamping space adapt to the size and shape of the parts. Then, the motor 17 is started, and the transmission shaft 18 drives the support plate 1 to rotate, thereby causing the stainless steel parts on the clamping unit 2 to start rotating. At the same time, the agent in the agent storage tank is transported to the nozzle 7 through the conveying pipe 8. The booster pump pressurizes the agent and sprays it out in atomized form, evenly covering the surface of the stainless steel parts. The sprayed agent flows into the recovery tank 9 along the guide plate 10, and enters the collection box 12 after being filtered by the filter screen 11. The agent in the collection box 12 flows back to the agent storage tank through the circulation pipe 13, completing the recycling of the agent. Throughout the process, the shock absorption unit absorbs the vibration generated during the operation of the equipment to ensure the stable operation of the device.

[0032] As can be seen from the above specific embodiments, this utility model achieves flexible clamping of stainless steel parts of different shapes and sizes through the design of the clamping unit 2 and the adjustment component, thus expanding the applicability of the device. The synergistic effect of the spraying component and the recovery component ensures uniform distribution and recycling of the agent, reducing resource waste. The drive unit drives the support plate 1 to rotate, enabling the stainless steel parts to achieve multi-angle agent contact during the passivation process, further improving the passivation effect. The design of the shock absorption unit reduces vibration during equipment operation and improves the stability of equipment operation. The overall structure is reasonably designed, easy to operate, and has low manufacturing cost, effectively solving the problems of complex mechanical structure, low agent utilization rate, and limited applicability of existing stainless steel part surface black passivation devices.

[0033] To enable those skilled in the art to fully understand and implement this utility model, the following supplementary explanation of the implementation principle of this utility model is provided in conjunction with specific application scenarios.

[0034] First, in actual operation, the stainless steel parts to be processed are placed into the clamping space of clamping unit 2. By rotating the locking element 6, the adjusting rod 5 moves accordingly, driving the movable arm 4 to adjust its position, thereby changing the size of the clamping space to accommodate stainless steel parts of different sizes and shapes. The slots and latches between the fixed arm 3 and the movable arm 4 fit tightly, ensuring that the parts remain stable during the passivation process and avoiding uneven processing caused by loosening.

[0035] Subsequently, motor 17 is started, and drive shaft 18 drives support plate 1 to rotate. Clamping unit 2 on support plate 1 rotates accordingly, enabling the stainless steel parts to achieve multi-angle contact with the reagent during passivation. The core of this design lies in using rotational motion to ensure that the reagent evenly covers the surface of the parts, solving the problem of uneven reagent distribution in traditional devices. Simultaneously, the mounting holes on the top of support plate 1 are bolted to clamping unit 2, facilitating replacement or adjustment of clamping unit 2 as needed, further enhancing the flexibility and applicability of the device.

[0036] Meanwhile, the agent in the storage tank is delivered to the nozzle 7 via the delivery pipe 8. A booster pump located in the middle of the delivery pipe 8 increases the agent pressure, causing it to be sprayed out of the nozzle 7 in atomized form. The ball joint design at the bottom of the nozzle 7 allows for angle adjustment; by loosening the locking nut, the spray direction can be adjusted according to the specific shape of the part, thus ensuring that the agent can evenly cover the surface of the part. This atomized spraying method not only improves the utilization rate of the agent but also significantly improves the passivation effect.

[0037] After spraying, the pesticide flows along the guide plate 10 inside the recovery tank 9 and enters the filtration unit. The inclined design of the guide plate 10 guides the pesticide to flow quickly towards the drain port, avoiding pesticide residue. After the filter screen 11 filters impurities from the pesticide, it flows into the collection box 12. The pesticide in the collection box 12 flows back to the pesticide storage tank through the circulation pipe 13. The flow control valve 14 is used to regulate the return flow rate to ensure maximum recycling efficiency of the pesticide. This design effectively reduces pesticide waste and minimizes environmental impact.

[0038] The vibration damping unit plays a crucial role throughout the entire operation. The base 15 is fixed to the ground, and the elastic element 16 connects the base 15 to the support plate 1, absorbing vibrations generated during equipment operation. The elastic element 16 uses springs or rubber pads, effectively reducing vibrations caused by mechanical movement, preventing parts from loosening or being damaged, and ensuring stable operation of the equipment over a long period.

[0039] As can be seen from the above steps, this utility model achieves flexible clamping of stainless steel parts of different shapes and sizes through the design of the clamping unit 2 and the adjustment component. The synergistic effect of the spraying component and the recycling component ensures uniform distribution and efficient recycling of the agent. The drive unit drives the support plate 1 to rotate, enabling the stainless steel parts to achieve multi-angle agent contact during the passivation process, further improving the passivation effect. The design of the shock absorption unit significantly reduces vibration during equipment operation and improves overall stability. The reasonable layout and synergistic work of the above components make this device excellent in terms of ease of operation, manufacturing cost, and environmental performance, effectively solving many problems existing in the prior art.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for black passivation of the surface of stainless steel parts, characterized in that, The device includes a passivation treatment mechanism and a drug distribution mechanism. The passivation treatment mechanism includes a support component and an adjustment component. The support component has a support plate (1) at its center. Multiple clamping units (2) are installed on the support plate (1). The clamping units (2) are connected to the support plate (1) through the adjustment component. The drug distribution mechanism includes a spraying component and a recycling component. The spraying component is located above the support component, and the recycling component is located below the support component. The spraying component and the recycling component work together to complete the distribution and recycling of the drug.

2. A device for black passivation of stainless steel parts according to claim 1, characterized in that, The clamping unit (2) includes a fixed arm (3) and a movable arm (4). One end of the fixed arm (3) is fixedly connected to the support plate (1) by bolts, and the other end is provided with a slot. One end of the movable arm (4) is connected to the fixed arm (3) by a hinge, and the other end is provided with a buckle corresponding to the slot. The buckle and the slot cooperate to form a clamping space. The adjustment assembly includes an adjustment rod (5) and a locking member (6). One end of the adjustment rod (5) is connected to the movable arm (4), and the other end passes through the support plate (1) and extends to the outside of the support plate (1). The locking member (6) is sleeved on the outside of the adjustment rod (5) and threadedly connected to the support plate (1).

3. The black passivation device for stainless steel parts according to claim 1, characterized in that, The load-bearing component also includes a drive unit, which includes a motor (17) and a transmission shaft (18). The motor (17) is fixed to the bottom of the support plate (1) by a bracket. One end of the transmission shaft (18) is connected to the output shaft of the motor (17), and the other end passes through the support plate (1) and is fixedly connected to the center of the support plate (1).

4. The black passivation device for stainless steel parts according to claim 1, characterized in that, The spraying assembly includes a nozzle (7) and a delivery pipe (8). There are multiple nozzles (7) evenly distributed above the carrier assembly. One end of the delivery pipe (8) is connected to the agent storage tank, and the other end is connected to the nozzle (7). A booster pump is provided in the middle of the delivery pipe (8).

5. The black passivation device for stainless steel parts according to claim 1, characterized in that, The recycling assembly includes a recycling tank (9) and a filtration unit. The recycling tank (9) is located at the bottom of the supporting assembly and has an inclined guide plate (10) inside. A drain port is provided between the lower end of the guide plate (10) and the side wall of the recycling tank (9). The filtration unit includes a filter screen (11) and a collection box (12). The filter screen (11) is located inside the recycling tank (9) and divides the recycling tank (9) into upper and lower layers. The collection box (12) is detachably installed at the bottom of the recycling tank (9).

6. The black passivation device for stainless steel parts according to claim 1, characterized in that, A circulation pipe (13) is provided between the spraying component and the recovery component. One end of the circulation pipe (13) is connected to the collection box (12), and the other end is connected to the agent storage tank. A flow control valve (14) is provided in the middle of the circulation pipe (13).

7. The black passivation device for stainless steel parts according to claim 1, characterized in that, The bottom of the bearing component is provided with a shock-absorbing unit, which includes a base (15) and an elastic element (16). The base (15) is fixed to the ground, and one end of the elastic element (16) is connected to the base (15), and the other end is connected to the bottom of the support plate (1).

8. A device for black passivation of stainless steel parts according to claim 1, characterized in that, The top of the support plate (1) is provided with multiple mounting holes corresponding to the clamping unit (2). The inner wall of the mounting hole is provided with threads, and the clamping unit (2) is threadedly connected to the mounting hole by bolts.

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