Metal casting surface passivation device

Abstract

The utility model relates to the technical field of metal casting passivation, and discloses a metal casting surface passivation device which comprises a passivation pool, an upper rotating shaft rod is rotatably installed at the top of the front end of the passivation pool, a lower rotating shaft rod is rotatably installed on the rear lower side of an inner cavity of the passivation pool, and a conveying mechanism is arranged in the passivation pool. The conveying mechanism comprises two upper transmission chain wheels symmetrically and fixedly installed on the outer surfaces of the left end and the right end of the upper rotating shaft rod and two lower transmission chain wheels symmetrically and fixedly installed on the outer surfaces of the left end and the right end of the lower rotating shaft rod, and two transmission chains are connected between the two upper transmission chain wheels and the two lower transmission chain wheels. And a driving motor used for driving the upper rotating shaft rod to rotate is fixedly mounted on the front upper side of the right wall face of the passivation pool, and a placing mechanism is arranged in front of the two transmission chains. By arranging the conveying mechanism and the placing mechanism, a worker can conveniently carry out feeding and discharging operation on metal castings on the equipment, and the use convenience of the equipment is improved.

Description

Technical Field

[0001] This utility model relates to the field of passivation technology for metal castings, and in particular to a passivation device for the surface of metal castings. Background Technology

[0002] A search revealed that application number 202122300492.4 discloses a surface passivation device for metal fire-fighting castings. The passivation tank is equipped with the motion mechanism, which is connected to the gripping mechanism. The motion mechanism includes a drive component, a drive shaft, and a moving component. The drive component is installed at one end of the passivation tank and is drivenly connected to the drive shaft. The drive shaft is connected to the moving component via a transmission belt, and the moving component is installed on one side of the passivation tank.

[0003] The metal fire-fighting casting surface passivation device in this patent application uses an electromagnet on a rolling frame to attract the casting. A drive unit then moves the moving assembly via a transmission shaft, causing the rolling frame to roll on the surface of the passivation tank. This allows the castings attracted by the electromagnets to be sequentially immersed in the passivating agent for passivation. However, in this process, because the multiple electromagnets on the rolling frame are distributed in a ring with equal spacing, their positions are relatively dispersed. Half of the electromagnets are immersed in the passivating agent in the tank. The rolling frame must roll along the surface of the passivation tank to sequentially move all the electromagnets out before the castings can be loaded and unloaded. This results in workers needing to move back and forth to different positions for each electromagnet, causing inconvenience. Therefore, we propose a metal casting surface passivation device. Utility Model Content

[0004] The present invention aims to solve the technical problems existing in the prior art and provide a passivation device for metal castings.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a passivation device for metal castings, comprising a passivation tank, an upper rotating shaft rotatably mounted on the top front end of the passivation tank, a lower rotating shaft rotatably mounted on the lower rear side of the inner cavity of the passivation tank, a transmission mechanism provided inside the passivation tank, the transmission mechanism comprising two upper transmission sprockets symmetrically fixedly mounted on the outer surfaces of the left and right ends of the upper rotating shaft, and two lower transmission sprockets symmetrically fixedly mounted on the outer surfaces of the left and right ends of the lower rotating shaft, two transmission chains connecting the two upper transmission sprockets and the two lower transmission sprockets, a drive motor for driving the upper rotating shaft to rotate fixedly mounted on the upper front side of the right wall of the passivation tank, a placement mechanism provided in front of the two transmission chains, the placement mechanism comprising multiple placement mesh frames evenly distributed between the two transmission chains, and a PLC controller electrically connected to the drive motor fixedly mounted on the middle front side of the right wall of the passivation tank.

[0006] Furthermore, the two upper drive sprockets correspond to the positions of the two lower drive sprockets respectively.

[0007] Furthermore, the two transmission chains are arranged in an inclined state with the front higher than the rear.

[0008] Furthermore, the right end of the upper rotating shaft penetrates the right wall of the passivation tank cavity and is fixedly installed with the output end of the drive motor.

[0009] Furthermore, two connecting brackets are fixedly installed at both ends of each of the placed wire mesh frames.

[0010] Furthermore, the end of each connecting bracket away from the multiple placement frames is fixedly connected to the corresponding position on the outer surface of the two transmission chains.

[0011] Furthermore, each of the placed wire mesh frames has a top wire mesh plate at its open end.

[0012] Furthermore, one end of each of the top mesh panels is hinged to one end of the top of each placement frame, and the other end of each top mesh panel and the other end of the top of each placement frame are provided with a latch lock assembly.

[0013] Furthermore, each of the placement frames has multiple partition mesh panels fixedly installed inside.

[0014] This invention provides a passivation device for the surface of metal castings. It has the following beneficial effects:

[0015] 1. This metal casting surface passivation device, through the setting of a transmission mechanism and a placement mechanism, in use, because the two transmission chains are set in a front-high-rear-low configuration, and multiple placement mesh frames are evenly distributed between the two transmission chains, so that the placement mesh frame located at the upper front side is outside the passivation tank. The operator stands at the front of the equipment and opens the top mesh plate of the placement mesh frame located at the upper front side using the latching assembly, places the metal casting to be passivated inside the placement mesh frame, and then closes the top mesh plate using the latching assembly. The PLC controller controls the drive motor to start, and the output end of the drive motor drives the two upper transmission sprockets on it to rotate synchronously through the upper rotating shaft, cooperating with the lower rotating shaft. Two lower drive sprockets drive two drive chains to move synchronously. These chains, connected to a bracket, move the placement mesh frame downwards into the passivation tank, immersing the metal casting in the passivating agent for passivation. The remaining placement mesh frames, driven by the two drive chains, move sequentially to the upper front position of the passivation tank, facilitating the placement of metal castings into these frames. Once passivation is complete, the workers open the mesh frames at the upper front position to remove the passivated metal castings. This operation is simple, practical, and features a reasonable and compact structure, making it convenient for workers to load and unload metal castings, thus improving the ease of use of the equipment.

[0016] 2. This metal casting surface passivation device, by setting up dividing mesh plates, forms multiple independent spaces inside the placement frame, so that the metal castings can be separated when placed inside the placement frame, so as to avoid the metal castings piling up together and affecting the passivation quality, thereby improving the practicality of the device. Attached Figure Description

[0017] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this utility model can be implemented, and therefore have no substantial technical significance.

[0018] Figure 1 This is a schematic diagram of the metal casting surface passivation device of this utility model.

[0019] Figure 2 This is a cross-sectional view of the metal casting surface passivation device of this utility model;

[0020] Figure 3 for Figure 1 Enlarged diagram of A in the middle;

[0021] Figure 4 This is a diagram showing the use of the mesh frame structure of this utility model.

[0022] Legend:

[0023] 10. Passivation tank; 11. Upper rotating shaft; 12. Lower rotating shaft; 13. Upper drive sprocket; 14. Lower drive sprocket; 15. Drive chain; 16. Drive motor; 17. Placement frame; 18. Connecting bracket; 19. Top mesh plate; 20. Hook and loop lock assembly; 21. Dividing mesh plate; 22. PLC controller. Detailed Implementation

[0024] A passivation device for the surface of metal castings, such as Figure 1-4 As shown, the system includes a passivation tank 10. An upper rotating shaft 11 is rotatably mounted on the top front end of the passivation tank 10, and a lower rotating shaft 12 is rotatably mounted on the lower rear side of the inner cavity of the passivation tank 10. A transmission mechanism is provided inside the passivation tank 10. The transmission mechanism includes two upper drive sprockets 13 symmetrically fixedly mounted on the outer surfaces of the left and right ends of the upper rotating shaft 11, and two lower drive sprockets 14 symmetrically fixedly mounted on the outer surfaces of the left and right ends of the lower rotating shaft 12. Two transmission chains 15 connect the two upper drive sprockets 13 and the two lower drive sprockets 14. The two upper drive sprockets 13 correspond to the positions of the two lower drive sprockets 14, and the two transmission chains 15 are arranged in an inclined state with the front higher than the rear. A drive motor 16 for driving the upper rotating shaft 11 is fixedly mounted on the upper front side of the right wall of the passivation tank 10. The right end of the upper rotating shaft 11 penetrates the right wall of the inner cavity of the passivation tank 10 and is fixedly mounted to the output end of the drive motor 16. The two transmission chains 15 are connected in front of... A placement mechanism is provided, comprising multiple placement mesh frames 17 evenly distributed between two transmission chains 15. Each placement mesh frame 17 has two connecting brackets 18 fixedly installed at both ends of its left and right sides. The end of each connecting bracket 18 away from the multiple placement mesh frames 17 is fixedly connected to the corresponding position on the outer surface of the two transmission chains 15. Each placement mesh frame 17 has a top mesh plate 19 at its open end. One end of each top mesh plate 19 is hinged to one end of the top of each placement mesh frame 17. The other end of each top mesh plate 19 and the other end of the top of each placement mesh frame 17 are provided with a latch lock assembly 20. The latch lock assembly 20 is used to facilitate opening and closing of the top mesh plate 19. The latch lock assembly 20 is a known technology and will not be described in detail. Multiple partition mesh plates 21 are fixedly installed inside each placement mesh frame 17. A PLC controller 22 electrically connected to the drive motor 16 is fixedly installed at the front center position of the right wall of the passivation pool 10.

[0025] The working principle of this utility model is as follows: During use, the two transmission chains 15 are positioned with the front higher than the rear, and multiple placement frames 17 are evenly distributed between the two transmission chains 15. This ensures that the placement frame 17 located at the upper front position is outside the passivation tank 10. The operator stands at the front of the equipment and opens the top mesh plate 19 of the placement frame 17 using the latch lock assembly 20. The metal casting to be passivated is placed inside the placement frame 17, and then the top mesh plate 19 is closed using the latch lock assembly 20. The PLC controller 22 controls the drive motor 16 to start. The output of the drive motor 16 drives the two upper transmission sprockets 13 to rotate synchronously via the upper rotating shaft 11. This, in conjunction with the lower rotating shaft 12 and the two lower transmission sprockets 14, drives the two transmission chains 15 to move synchronously. The two transmission chains 15 are connected by a bracket 18. The placement frame 17 is moved downwards into the passivation tank 10, immersing the metal casting in the passivating agent for passivation. The remaining placement frames 17 are then moved sequentially to the upper front position of the passivation tank 10 by two drive chains 15, facilitating the placement of metal castings into the remaining placement frames 17. After the metal castings have completed passivation, the placement frames 17 at the upper front position of the passivation tank 10 are opened sequentially to remove the passivated metal castings. The operation is simple and practical, with a reasonable and compact structure, facilitating the loading and unloading of metal castings on the equipment and improving its ease of use. The placement frames 17 are divided into multiple independent spaces by multiple dividing mesh plates 21, allowing the metal castings to be separated when placed inside the placement frames 17, preventing them from piling up and affecting the passivation quality, thus improving the practicality of the equipment.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A passivation device for the surface of a metal casting, comprising a passivation pool (10), characterized in that: An upper rotating shaft (11) is rotatably mounted on the top front end of the passivation tank (10), and a lower rotating shaft (12) is rotatably mounted on the lower rear side of the inner cavity of the passivation tank (10). A transmission mechanism is provided inside the passivation tank (10). The transmission mechanism includes two upper drive sprockets (13) symmetrically fixedly mounted on the outer surfaces of the left and right ends of the upper rotating shaft (11) and two lower drive sprockets (14) symmetrically fixedly mounted on the outer surfaces of the left and right ends of the lower rotating shaft (12). Two transmission chains (15) are connected between the sprockets (14). A drive motor (16) for driving the upper rotating shaft (11) to rotate is fixedly installed on the upper side of the right wall of the passivation tank (10). A placement mechanism is provided in front of the two transmission chains (15). The placement mechanism includes multiple placement mesh frames (17) evenly distributed between the two transmission chains (15). A PLC controller (22) electrically connected to the drive motor (16) is fixedly installed on the middle side of the right wall of the passivation tank (10).

2. The passivation device for metal castings according to claim 1, characterized in that: The two upper drive sprockets (13) are respectively positioned to correspond to the two lower drive sprockets (14), and the two drive chains (15) are set in an inclined state with the front higher than the back.

3. The passivation device for metal castings according to claim 1, characterized in that: The right end of the upper rotating shaft (11) penetrates the right wall of the inner cavity of the passivation pool (10) and is fixedly installed with the output end of the drive motor (16).

4. The passivation device for metal castings according to claim 1, characterized in that: Two connecting brackets (18) are fixedly installed at both ends of each of the placement frames (17). The end of each connecting bracket (18) away from the multiple placement frames (17) is fixedly connected to the corresponding position on the outer surface of the two transmission chains (15).

5. The passivation device for metal castings according to claim 1, characterized in that: Each of the placement frames (17) has a top mesh plate (19) at its open end. One end of each top mesh plate (19) is hinged to one end of the top of each placement frame (17). The other end of each top mesh plate (19) and the other end of the top of each placement frame (17) are provided with a latch lock assembly (20).

6. The passivation device for metal castings according to claim 1, characterized in that: Each of the aforementioned placement frames (17) has multiple partition panels (21) fixedly installed inside.

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