Multi-station workpiece spraying frame

Abstract

The utility model relates to metal surface treatment equipment technical field discloses a kind of multi-station workpiece spraying frame, including liquid storage pool, the top axis of the liquid storage pool is rotatably connected with frame body, the frame body top edge is rotatably connected with multiple mounting seat, the bottom of the mounting seat is threadedly connected with hook, the outside of the hook is equipped with processing piece, the bottom of the frame body is connected with the motor inside liquid storage pool by circuit, the front side of the liquid storage pool is fixedly connected with mounting bracket, the top of the mounting bracket is fixedly connected with fixed seat, the top right end of the fixed seat is equipped with servo motor. In the utility model, break the hook contact "fixed blind area" and "liquid film dead angle", improve spraying uniformity to avoid plating adhesion insufficient;Frame body drives processing piece rotation around liquid storage pool axis simultaneously and processing piece rotates, make workpiece residual liquid film uniform, provide good surface for subsequent nickel plating, improve plating uniformity and appearance quality.

Description

Technical Field

[0001] This utility model relates to the technical field of metal surface treatment equipment, and in particular to a multi-station workpiece spraying rack. Background Technology

[0002] Multi-station workpiece spray racks are specialized equipment used in the nickel plating process for pre-cleaning and pre-treating workpieces. Their core function is to improve processing efficiency through simultaneous multi-station operation, providing a clean and uniform workpiece surface for subsequent nickel plating processes. They can simultaneously hold multiple metal workpieces to be processed, spraying cleaning fluid onto each station via a spray system to remove oil, oxide layers, dust, and other impurities from the workpiece surface, preventing these impurities from affecting the adhesion between the nickel plating layer and the metal substrate. Compared to single-station equipment, they allow for continuous or simultaneous workpiece flow and processing, reducing workpiece waiting time and adapting to the needs of batch nickel plating production. They are one of the key pieces of equipment for improving efficiency and processing quality in mass nickel plating production.

[0003] However, existing spray racks still have the following technical problems in actual processing: Most existing spray racks adopt a single motion mode, or simply allow the workpiece to move in a simple cycle with the rack, or simply keep it fixed and stationary. They lack a structure similar to "the abutment block pushing the workpiece to shake slightly" and a design of "gears meshing with the connecting ring to drive the workpiece to rotate." As a result, the "fixed blind zone" where the workpiece contacts the hook is always blocked, the spray liquid cannot cover it, and "liquid film dead corners" are easily formed on the workpiece surface, resulting in incomplete cleaning. In the subsequent nickel plating, the residual impurities can easily cause problems such as insufficient plating adhesion and peeling. At the same time, there is no centrifugal force generated by the rotation of the workpiece after the existing spray rack sprays. Excess liquid on the workpiece surface can only drip naturally, which can easily form local liquid accumulation. The thickness of the residual liquid film varies greatly, which cannot provide a flat and uniform surface base for subsequent nickel plating, resulting in uneven nickel plating thickness and appearance defects.

[0004] In response to this technical problem, this application proposes a multi-station workpiece spraying rack. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, which often feature a single motion mode, lack a contact block to push the workpiece to shake, and have a gear meshing to drive rotation. This results in blind spots in hook contact, incomplete cleaning, and uneven residual liquid film due to the absence of centrifugal force to throw off liquid, thus affecting the quality of subsequent nickel plating. Therefore, this invention proposes a multi-station workpiece spraying rack.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A multi-station workpiece spraying rack includes a liquid storage tank. A frame is rotatably connected to the top axis of the liquid storage tank. Multiple mounting seats are rotatably connected to the top edge of the frame. Hooks are threaded to the bottom ends of the mounting seats. A workpiece is sleeved on the outer side of the hooks. The bottom end of the frame is connected to a motor installed inside the liquid storage tank via a circuit. A mounting frame is fixedly connected to the front side of the liquid storage tank. A fixed seat is fixedly connected to the top of the mounting frame. A servo motor is installed at the top right end of the fixed seat. A slide rod is connected to the drive end of the servo motor via a movable component. The outer side of the slide rod is connected to the fixed seat via a guide sleeve. An abutment block is connected to the rear end of the outer side of the slide rod via an adjustment component. The front end of the top of the abutment block is at the same horizontal height as the rear end of the bottom of the workpiece. A spray head is installed at the top of the fixed seat. The spray head is connected to the liquid storage tank via a pipe.

[0007] Furthermore, the top of the mounting base extends through the top side of the frame and is fixedly connected to a gear. A support plate is fixedly connected to the opposite side of the outer wall of the liquid storage tank. A connecting ring is fixedly connected to the top of the support plate on the side close to it. The inner wall of the connecting ring is provided with teeth that are compatible with the gear.

[0008] Furthermore, a filter plate is installed on the top edge of the liquid storage tank. The inner diameter of the filter plate is lower than its outer diameter, i.e., the filter plate has a ring structure with "lower inside and higher outside". A collection groove is provided at the top axial position of the liquid storage tank. The size of the collection groove is adapted to the inner diameter of the filter plate.

[0009] Furthermore, an outlet pipe is fixedly connected to the bottom of the outer wall of the storage tank, and a protective baffle is fixedly connected to the top and bottom sides of the frame.

[0010] Furthermore, the movable component includes a rotating rod, which is fixedly connected to the servo motor drive end. A connecting rod is rotatably connected to the top of the rotating rod, and the other end of the connecting rod is rotatably connected to the front end of the slide rod.

[0011] Furthermore, the guide sleeve is fixedly connected to the left rear end of the fixed base, and the guide sleeve is sleeved on the outer front end of the slide rod.

[0012] Furthermore, the adjustment assembly includes a positioning rod, which is fixedly connected to the outer rear end of the slide rod. An abutment block is sleeved on the outer side of the positioning rod, and a positioning bolt is threaded to the rear side of the abutment block. A positioning hole adapted to the positioning bolt is opened on the rear side of the positioning rod.

[0013] This utility model has the following beneficial effects: 1. In this utility model, the multi-dimensional motion coordination of the abutment block pushing the workpiece to shake slightly completely breaks the fixed obstruction problem of the existing equipment, so that the "fixed blind zone" that was originally in contact with the hook is alternately exposed, and the "liquid film dead corner" on the workpiece surface can also be broken, the spray uniformity is greatly improved, and the problem of insufficient coating adhesion caused by incomplete cleaning in the subsequent nickel plating process is effectively avoided.

[0014] 2. In this utility model, the frame drives the workpiece to rotate around the axis of the liquid storage tank, and the gear and connecting ring mesh to drive the workpiece to rotate. After spraying, the continuous rotation generates centrifugal force, which evenly throws the excess liquid on the surface of the workpiece into the bottom liquid storage tank, making the thickness of the residual liquid film on the surface of the workpiece more uniform. This provides a smoother and cleaner surface base for the subsequent nickel plating process, and significantly improves the uniformity and appearance quality of the nickel plating layer. Attached Figure Description

[0015] Figure 1 This is a perspective view of a multi-station workpiece spraying rack proposed in this utility model; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram of the slide bar structure of a multi-station workpiece spraying frame proposed in this utility model; Figure 4 This is a schematic diagram of the connecting ring structure of a multi-station workpiece spraying rack proposed in this utility model.

[0016] Legend: 1. Liquid storage tank; 2. Mounting frame; 3. Servo motor; 4. Rotating rod; 5. Connecting rod; 6. Sliding rod; 7. Guide sleeve; 8. Fixed seat; 9. Positioning rod; 10. Positioning bolt; 11. Abutment block; 12. Nozzle; 13. Pipe; 14. Frame; 15. Support plate; 16. Connecting ring; 17. Protective baffle; 18. Mounting seat; 19. Hook; 20. Machined part; 21. Gear; 22. Liquid outlet pipe; 23. Filter plate; 24. Collection tank. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Reference Figures 1-3An embodiment of this utility model provides a multi-station workpiece spraying rack, including a liquid storage tank 1, a frame 14 rotatably connected to the top axis of the liquid storage tank 1, a plurality of mounting seats 18 rotatably connected to the top edge of the frame 14, a hook 19 threadedly connected to the bottom end of the mounting seat 18, a processing part 20 sleeved on the outside of the hook 19, the bottom end of the frame 14 connected to a motor installed inside the liquid storage tank 1 via a line, a mounting frame 2 fixedly connected to the front side of the liquid storage tank 1, a fixed seat 8 fixedly connected to the top of the mounting frame 2, a servo motor 3 installed at the top right end of the fixed seat 8, a slide rod 6 connected to the drive end of the servo motor 3 via a movable component, a guide sleeve 7 connected to the fixed seat 8 on the outside, an abutment block 11 connected to the rear end of the outer side of the slide rod 6 via an adjustment component, the front end of the top of the abutment block 11 being at the same horizontal height as the rear end of the bottom of the processing part 20, a nozzle 12 installed at the top of the fixed seat 8, and a liquid storage tank connected to the nozzle 12 via a pipe 13. Specifically, the storage tank 1 stores the recovered and filtered cleaning liquid, providing a stable liquid source for the entire spraying system. A frame 14 is rotatably connected to its top axis. Multiple mounting seats 18 are rotatably connected to the top edge of the frame 14. The mounting seats 18 provide a mounting base for the hooks 19 and can drive the hooks 19 to rotate synchronously. The bottom end of the mounting seat 18 is threaded with a hook 19. This threaded connection facilitates quick replacement of the appropriate hook 19 according to the size and shape of the workpiece 20, improving the equipment's versatility. The workpiece 20 is fitted onto the outside of the hook 19. The bottom end of the frame 14 is connected via wiring to a motor installed inside the storage tank 1. This motor provides power for the rotation of the frame 14. The frame 14 and its top mounting bases 18, hooks 19, and workpieces 20 rotate synchronously, enabling cyclic spraying of multi-station workpieces 20 and improving processing efficiency. A mounting frame 2 is fixedly connected to the front of the liquid storage tank 1, providing stable support for the fixed base 8 and ensuring secure installation of subsequent components. A fixed base 8 is fixedly connected to the top of the mounting frame 2, providing a mounting platform for components such as the servo motor 3, guide sleeve 7, and nozzle 12, ensuring precise positioning of each component. A servo motor 3 is installed on the top right end of the fixed base 8, providing power for the movement of the movable components. Its drive end is connected to a slide rod 6 via the movable components, allowing the movable components to rotate the servo motor 3. The motion is converted into the reciprocating linear motion of the slide rod 6. The outer side of the slide rod 6 is connected to the fixed seat 8 through the guide sleeve 7. The guide sleeve 7 can guide and limit the motion of the slide rod 6, preventing the slide rod 6 from deviating during the reciprocating motion and ensuring motion accuracy. The outer rear end of the slide rod 6 is connected to the abutment block 11 through the adjustment component. The adjustment component can adjust the position of the abutment block 11 on the slide rod 6 according to the size of the workpiece 20, so that the abutment block 11 can accurately contact the workpiece 20 of different sizes. The front side of the top of the abutment block 11 is at the same horizontal height as the rear side of the bottom of the workpiece 20. This height setting can ensure that the abutment block 11 can effectively push the workpiece 20 when it contacts the workpiece 20. With slight shaking, the nozzle 12 is installed on the top of the fixed base 8. The nozzle 12 is connected to the liquid storage tank through the pipe 13. The liquid storage tank provides the cleaning fluid required for spraying the nozzle 12. The pipe 13 is responsible for transporting the cleaning fluid. The nozzle 12 can spray the cleaning fluid onto the surface of the workpiece 20 at a suitable pressure and angle to achieve spray cleaning of the workpiece 20. When the frame 14 drives the mounting base 18 and the gear 21 to rotate around the axis of the liquid storage tank 1, the gear 21 will mesh with the teeth on the inner wall of the connecting ring 16. Under the meshing action, the gear 21 will drive the mounting base 18, the hook 19, and the workpiece 20 itself to rotate, so that all surfaces of the workpiece 20 can contact the spraying fluid more evenly, further improving the spraying effect. Reference Figures 2-4The top of the mounting base 18 passes through the top side of the frame 14 and is fixedly connected to a gear 21. A support plate 15 is fixedly connected to the opposite side of the outer wall of the storage tank 1. A connecting ring 16 is fixedly connected to the top of the support plate 15 near the top side. The inner wall of the connecting ring 16 is provided with teeth that are compatible with the gear 21. A filter plate 23 is installed on the top edge of the storage tank 1. The inner diameter of the filter plate 23 is lower than its outer diameter, that is, the filter plate 23 has a ring structure with "lower inside and higher outside". A collection groove 24 is opened at the axial position of the top side of the storage tank 1. The size of the collection groove 24 is compatible with the inner diameter of the filter plate 23. A liquid outlet is fixedly connected to the bottom of the outer wall of the storage tank 1. The top and bottom sides of the tube 22 and frame 14 are fixedly connected to a protective baffle 17; the movable component includes a rotating rod 4, which is fixedly connected to the drive end of the servo motor 3. A connecting rod 5 is rotatably connected to the top of the rotating rod 4, and the other end of the connecting rod 5 is rotatably connected to the front end of the slide rod 6; the guide sleeve 7 is fixedly connected to the left rear end of the fixed seat 8, and the guide sleeve 7 is sleeved on the outer front end of the slide rod 6; the adjustment component includes a positioning rod 9, which is fixedly connected to the outer rear end of the slide rod 6. An abutment block 11 is sleeved on the outer side of the positioning rod 9, and a positioning bolt 10 is threadedly connected to the rear side of the abutment block 11. A positioning hole that matches the positioning bolt 10 is opened on the rear side of the positioning rod 9; Specifically, a filter plate 23 is installed on the top edge of the storage tank 1. The filter plate 23 has a ring-shaped structure with a lower inner diameter than an outer diameter. This design allows the cleaning liquid after spraying to flow inward along the inclined surface of the filter plate 23 under gravity. Simultaneously, the filter plate 23 filters impurities in the cleaning liquid, preventing them from entering the storage tank 1 and causing pollution or clogging of subsequent pipes and nozzles. A collection trough 24 is located at the axial position of the top side of the storage tank 1. The size of the collection trough 24 is adapted to the inner diameter of the filter plate 23. The cleaning liquid filtered by the filter plate 23 can flow smoothly into the storage tank 1 through the collection trough 24 for recycling and reuse, reducing cleaning liquid waste and lowering production costs. A discharge pipe 22 is fixedly connected to the bottom of the outer wall of the storage tank 1. When it is necessary to replace the cleaning liquid in the storage tank 1 or clean the storage tank 1, the waste liquid can be discharged through the discharge pipe 22. The operation is convenient. The top and bottom sides of the frame 14 are fixedly connected to the protective baffle 17. The movable components include a rotating rod 4, which is fixedly connected to the drive end of the servo motor 3. When the servo motor 3 starts, it will drive the rotating rod 4 to rotate. The top of the rotating rod 4 is rotatably connected to the connecting rod 5. The rotation of the rotating rod 4 will drive the sliding rod 6 to move through the connecting rod 5. The other end of the connecting rod 5 is rotatably connected to the front end of the sliding rod 6. Through the cooperation of the rotating rod 4 and the connecting rod 5, the rotational motion of the servo motor 3 is smoothly converted into the reciprocating linear motion of the sliding rod 6 along the guide sleeve 7, which provides power for the abutment block 11 to push the workpiece 20 to shake. When it is necessary to adjust the position of the abutment block 11, simply loosen the positioning bolt 10, move the abutment block 11 to the appropriate position along the positioning rod 9, and then tighten the positioning bolt 10 to insert it into the corresponding positioning hole to fix the abutment block 11. The operation is simple and convenient and can quickly adapt to workpieces 20 of different sizes.

[0019] Working principle: First, based on the dimensions of the workpiece 20, the position of the abutment block 11 on the positioning rod 9 is adjusted using the adjusting assembly, so that the front top of the abutment block 11 is level with the rear bottom of the workpiece 20. Then, the workpiece 20 is fitted onto the outside of the hook 19. The motor inside the liquid storage tank 1 is started, and the motor drives the frame 14 to rotate around the axis of the liquid storage tank 1. While the frame 14 rotates, the gear 21 at the top of the mounting base 18 meshes with the teeth on the inner wall of the connecting ring 16, causing the mounting base 18, the hook 19, and the workpiece 20 to rotate. At the same time, the servo motor 3 and the nozzle 12 are started, and the servo motor 3 drives the rotating rod 4 to rotate. The rotating rod 4 drives the sliding rod 6 to reciprocate linearly along the guide sleeve 7 via the connecting rod 5. The sliding rod 6 drives the abutment block 11 to reciprocate synchronously. During the movement, the abutment block 11 contacts the rear side of the bottom of the workpiece 20 and pushes the workpiece 20 to shake slightly. When the workpiece shakes, the "fixed blind zone" that was originally in contact with the hook 19 will alternately leave the contact point and be exposed to the spray liquid. At the same time, the shaking can also break the "liquid film dead zone" on the surface of the workpiece, improving the uniformity of spraying. The nozzle 12 obtains cleaning liquid from the storage tank through the pipe 13 and sprays it onto the surface of the workpiece 20 to perform a comprehensive spray cleaning of the workpiece 20. The sprayed cleaning liquid falls onto the filter plate 23. After impurities are filtered by filter plate 23, the cleaning solution flows along the inclined surface of filter plate 23 into collection tank 24, and then into storage tank 1 for storage, realizing the recycling and reuse of cleaning solution. When it is necessary to discharge waste liquid from storage tank 1, the waste liquid can be discharged by opening the outlet pipe 22. The beneficial effect of this structure is that the frame 14 drives the workpiece 20 to rotate around the axis of storage tank 1 and the workpiece 20 itself to rotate, combined with the abutment block 11 pushing the workpiece 20 to shake slightly, ensuring that all surfaces of the workpiece 20 can fully contact the spray liquid in multiple dimensions, effectively eliminating spray blind spots, improving spray uniformity, ensuring the cleaning quality of workpiece 20, and providing a better cleaning experience for the workpiece 20. The subsequent nickel plating process provides good surface conditions; the "low inside, high outside" filter plate 23 works in conjunction with the collection tank 24 to achieve efficient filtration and recycling of the cleaning solution, reducing waste and lowering production costs; the threaded hook 19 and the adjustable abutment block 11 allow the equipment to adapt to workpieces 20 of different sizes and shapes, improving the equipment's versatility; the protective baffle 17 prevents cleaning solution from splashing and external impurities from entering, ensuring a clean environment around the equipment and the cleaning quality of the workpieces 20; each component has a simple structure, reliable connection, convenient operation, and is easy to maintain and repair, effectively improving processing efficiency and production stability.

[0020] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 multi-station workpiece spraying rack, characterized in that, The system includes a storage tank (1), a frame (14) is rotatably connected to the top axis of the storage tank (1), a plurality of mounting seats (18) are rotatably connected to the top edge of the frame (14), a hook (19) is threaded to the bottom end of the mounting seat (18), a machined part (20) is sleeved on the outside of the hook (19), the bottom end of the frame (14) is connected to a motor installed inside the storage tank (1) through a line, a mounting frame (2) is fixedly connected to the front side of the storage tank (1), and a fixed seat (8) is fixedly connected to the top of the mounting frame (2). A servo motor (3) is installed at the top right end of the fixed base (8). The drive end of the servo motor (3) is connected to a slide rod (6) through a movable component. The outer side of the slide rod (6) is connected to the fixed base (8) through a guide sleeve (7). The outer rear end of the slide rod (6) is connected to an abutment block (11) through an adjustment component. The front side of the top of the abutment block (11) is at the same horizontal height as the rear side of the bottom of the workpiece (20). A nozzle (12) is installed at the top of the fixed base (8). The nozzle (12) is connected to a liquid storage tank through a pipe (13).

2. The multi-station workpiece spraying frame according to claim 1, characterized in that: The top of the mounting base (18) passes through the top side of the frame (14) and is fixedly connected to a gear (21). A support plate (15) is fixedly connected to the opposite side of the outer wall of the liquid storage tank (1). A connecting ring (16) is fixedly connected to the side of the top of the support plate (15) near the top. The inner wall of the connecting ring (16) is provided with teeth that are compatible with the gear (21).

3. The multi-station workpiece spraying frame according to claim 1, characterized in that: A filter plate (23) is installed on the top edge of the liquid storage tank (1). The inner diameter of the filter plate (23) is lower than its outer diameter, that is, the filter plate (23) has a ring structure with "lower inside and higher outside". A collection groove (24) is provided at the top axial position of the liquid storage tank (1). The size of the collection groove (24) is adapted to the inner diameter of the filter plate (23).

4. The multi-station workpiece spraying frame according to claim 1, characterized in that: The bottom of the outer wall of the storage tank (1) is fixedly connected to the outlet pipe (22), and the top and bottom of the frame (14) are fixedly connected to the protective baffle (17).

5. A multi-station workpiece spraying frame according to claim 1, characterized in that: The active component includes a rotating rod (4), which is fixedly connected to the drive end of the servo motor (3). A connecting rod (5) is rotatably connected to the top of the rotating rod (4), and the other end of the connecting rod (5) is rotatably connected to the front end of the slide rod (6).

6. A multi-station workpiece spraying frame according to claim 1, characterized in that: The guide sleeve (7) is fixedly connected to the left rear end of the fixed seat (8), and the guide sleeve (7) is sleeved on the outer front end of the slide rod (6).

7. A multi-station workpiece spraying frame according to claim 1, characterized in that: The adjustment assembly includes a positioning rod (9), which is fixedly connected to the outer rear end of the slide rod (6). An abutment block (11) is sleeved on the outer side of the positioning rod (9). A positioning bolt (10) is threadedly connected to the rear side of the abutment block (11). A positioning hole adapted to the positioning bolt (10) is opened on the rear side of the positioning rod (9).

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