A cast iron paint filtering mechanism

Abstract

The utility model belongs to cast iron coating processing technical field especially is cast iron coating filtering mechanism, including base body and setting main body frame cylinder on the upper end face of base body, still include: connecting rod, rotation is connected in the inside of main body frame cylinder, the inside fixed of main body frame cylinder has filter screen board no.

Description

Technical Field

[0001] This utility model relates to the field of cast iron coating processing technology, specifically a cast iron coating filtration mechanism. Background Technology

[0002] Cast iron coating is a surface coating material used during the casting process to prevent defects in castings. It is mainly composed of refractory materials, carrier liquid, and binder. After the cast iron coating is prepared, it often contains blocky impurities or insufficiently mixed particles. If it is not effectively filtered, these impurities will adhere to the surface of the cast iron parts, causing defects such as porosity and sand holes, and reducing the product qualification rate.

[0003] Most commercially available cast iron coating filtration equipment uses a single filtration structure, filtering the coating through only one layer of filter screen. However, during use, lumpy impurities in the coating can easily clog the filter screen pores. If these impurities are not removed in time, the filtration efficiency will drop significantly, requiring frequent shutdowns to clean the filter screen and affecting production progress.

[0004] Therefore, we propose a cast iron coating filtration mechanism to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a cast iron coating filtration mechanism, which solves the problem mentioned in the background art that coating impurities easily clog the filter mesh, leading to reduced efficiency and impact on production progress.

[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0007] A cast iron coating filtration mechanism includes a base body and a main frame cylinder disposed on the upper end face of the base body, and further includes:

[0008] The connecting rod is rotatably connected to the inside of the main frame. A filter screen is fixed inside the main frame. A crushing mechanism is provided on the outer surface of the connecting rod to crush the paint entering the main frame.

[0009] The inner rod is rotatably connected to the inner side of the connecting rod. A drive mechanism is fixed on the upper end face of the main frame tube for driving and adjusting the connecting rod and the inner rod.

[0010] The second filter screen is slidably attached to the inside of the base body. The lower end of the base body is equipped with a screening mechanism to drive the second filter screen to slide up and down for screening.

[0011] Furthermore, the crushing mechanism includes a crushing plate and a scraper. The crushing plate is fixed to the outer surface of the connecting rod, and the connecting rod is rotatably connected to the inner side of the main frame. The scraper is fixed to the outer surface of the connecting rod and is located on the upper end face of the filter screen plate.

[0012] Furthermore, the driving mechanism includes a first helical gear, a second helical gear, a driving gear, and a driving motor. The first helical gear is fixed on the outer surface of the connecting rod, the second helical gear is fixed on the upper end face of the inner rod, the driving motor is fixed on the upper end face of the main frame, and the driving gear is fixed on the output end of the driving motor. The driving gear meshes with the first helical gear and the second helical gear.

[0013] Furthermore, a positioning groove is provided inside the base body, and a return spring is uniformly fixed inside the positioning groove. A bearing plate is fixed to the upper end of the return spring and connected to the filter screen plate by bolts.

[0014] Furthermore, the screening mechanism includes a linkage shaft, a screening gear, a connecting gear, and an eccentric wheel. The linkage shaft is rotatably connected to the center of the base body. The screening gear is fixed to the lower end face of the linkage shaft. The connecting gear is meshed with the left and right sides of the screening gear, and the other end of the connecting gear extends outward through the center of the base body. The eccentric wheel is fixed to the tail end of the connecting gear, and the other end of the eccentric wheel contacts the bottom surface of the filter screen.

[0015] Furthermore, a limiting groove is provided on the lower end face of the inner rod, and a positioning protrusion is fixed on the upper end face of the linkage shaft. The positioning protrusion has a hexagonal cross-section and is slidably embedded in the limiting groove.

[0016] Furthermore, the lower end face of the base body is symmetrically provided with discharge ports, and the cross-section of the discharge ports is arranged in a trapezoidal structure.

[0017] Compared with the prior art, this utility model provides a cast iron coating filtration mechanism, which has the following beneficial effects:

[0018] This invention, by incorporating a crushing mechanism and a scraper, allows for the crushing of blocky impurities, preventing clogging of the first filter screen. The scraper removes impurities from the surface of the first filter screen and promotes the flow of the coating. Simultaneously, a screening mechanism drives the second filter screen to slide up and down for screening, significantly improving filtration efficiency and reducing downtime for cleaning. The dual filtration structure of the first and second filter screens removes larger particles, while the second removes smaller particles, effectively ensuring the quality of the cast iron coating. Furthermore, a single drive motor coupled with helical gear transmission enables synchronous linkage between the connecting rod, internal rods, and screening mechanism, simplifying the equipment structure, reducing manufacturing costs and energy consumption, and improving operational stability. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the cast iron coating filtration mechanism of this utility model;

[0020] Figure 2This is a schematic diagram of the internal structure of the cast iron coating filtration mechanism of this utility model;

[0021] Figure 3 This is a front sectional view of the cast iron coating filter mechanism of this utility model;

[0022] Figure 4 This is a schematic diagram of the crushing mechanism of this utility model;

[0023] Figure 5 This is a schematic diagram of the crushing mechanism of this utility model from another angle;

[0024] Figure 6 This utility model Figure 3 Enlarged view of a portion of point A in the middle;

[0025] Figure 7 This is a schematic diagram of the screening mechanism of this utility model.

[0026] In the diagram: 1. Base body; 2. Main frame cylinder; 3. Connecting rod; 4. Crushing plate; 5. Scraper; 6. Filter screen plate one; 7. Inner rod; 8. Helical gear one; 9. Helical gear two; 10. Drive gear; 11. Drive motor; 12. Positioning groove; 13. Return spring; 14. Filter screen plate two; 15. Limiting groove; 16. Linkage shaft; 17. Positioning protrusion; 18. Screening gear; 19. Connecting gear; 20. Eccentric wheel; 21. Discharge port. Detailed Implementation

[0027] 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.

[0028] Example

[0029] like Figures 1-7 As shown, this is an embodiment proposed in this application, including a base body 1 and a main frame 2 disposed on the upper end face of the base body 1, and further including:

[0030] The base body 1 serves as the supporting foundation for the entire mechanism. The main frame 2 is fixedly installed on its upper end. The main frame 2 is used to hold the coating and achieve primary filtration, while the interior of the base body 1 is used to achieve secondary screening and filtration. At the same time, the base body 1 and the main frame 2 can be disassembled for subsequent inspection and maintenance.

[0031] This embodiment also includes a connecting rod 3, which is rotatably connected to the inner side of the main frame 2. A filter screen plate 6 is fixed inside the main frame 2. A crushing mechanism is provided on the outer surface of the connecting rod 3 for crushing the paint entering the main frame 2. Further, the crushing mechanism includes a crushing plate 4 and a scraper 5. The crushing plate 4 is fixed to the outer surface of the connecting rod 3, and the connecting rod 3 is rotatably connected to the inner side of the main frame 2. The scraper 5 is fixed to the outer surface of the connecting rod 3 and is located on the upper end face of the filter screen plate 6. The crushing plate 4 is welded and fixed to the outer surface of the connecting rod 3. When the connecting rod 3 rotates, it can impact and crush the paint clumps entering the main frame 2. The scraper 5 is also fixed to the outer surface of the connecting rod 3, and its lower end face is in contact with the upper end face of the filter screen plate 6. When the connecting rod 3 rotates, the scraper 5 can scrape off the paint residue and crushed impurities on the surface of the filter screen plate 6 to prevent the mesh from clogging. The filter screen plate 6 is fixed to the lower middle section inside the main frame 2 by bolts to ensure its horizontal stability.

[0032] The inner rod 7 is rotatably connected to the inner side of the connecting rod 3. A drive mechanism is fixed on the upper end face of the main frame 2 for driving and adjusting the connecting rod 3 and the inner rod 7. Furthermore, the drive mechanism includes a helical gear 8, a helical gear 9, a drive gear 10, and a drive motor 11. The helical gear 8 is fixed to the outer surface of the connecting rod 3, the helical gear 9 is fixed to the upper end face of the inner rod 7, the drive motor 11 is fixed to the upper end face of the main frame 2, and the drive gear 10 is fixed to the output end of the drive motor 11, and the drive gear 10 meshes with the helical gear 8 and the helical gear 9. The helical gear 8 is keyed to the upper end of the outer surface of the connecting rod 3, and the helical gear 9 is keyed to the upper end face of the inner rod 7. The output end of the drive motor 11 is fixedly connected to the drive gear 10 through a coupling, and the drive gear 10 meshes with both the helical gear 8 and the helical gear 9. When the drive motor 11 is started, the drive gear 10 can synchronously drive the helical gear 8 and the helical gear 9 to rotate, thereby realizing the synchronous rotation of the connecting rod 3 and the inner rod 7 without the need for an additional power source, simplifying the structure and saving energy.

[0033] The filter screen plate 14 is slidably engaged with the inner side of the base body 1. A screening mechanism is provided at the lower end of the base body 1 to drive the filter screen plate 14 to slide up and down for screening. Further, a positioning groove 12 is provided inside the base body 1. Return springs 13 are evenly fixed inside the positioning groove 12. A support plate is fixed to the upper end of the return spring 13 and connected to the filter screen plate 14 by bolts. The filter screen plate 14 is slidably engaged with the inner side of the base body 1. A screening mechanism is provided at the lower end of the base body 1. The positioning groove 12 is provided inside the base body 1. Return springs 13 are evenly welded and fixed inside the positioning groove 12. A support plate is welded to the upper end of the return spring 13. The support plate is detachably connected to the filter screen plate 14 by bolts, facilitating the replacement and cleaning of the filter screen plate 14.

[0034] Furthermore, the screening mechanism includes a linkage shaft 16, a screening gear 18, a connecting gear 19, and an eccentric wheel 20. The linkage shaft 16 is rotatably connected to the center of the base body 1 via a bearing. The screening gear 18 is keyed and fixed to the lower end face of the linkage shaft 16. The connecting gear 19 is meshed with the left and right sides of the screening gear 18, and the end of the connecting gear 19 away from the screening gear 18 extends outward through the center of the base body 1. The connecting gear 19 is connected to the screening gear 18. When the inner rod 7 can drive the linkage shaft 16 to rotate, the linkage shaft 16 can cooperate with the screening gear 18 and the connecting gear 19, which can drive the eccentric wheel 20 to rotate accordingly. The eccentric wheel 20 is keyed and fixed to the tail end of the connecting gear 19, and the outer circumferential surface of the eccentric wheel 20 is in contact with the bottom surface of the filter screen plate 14.

[0035] Furthermore, a limiting groove 15 is provided on the lower end face of the inner rod 7, and a positioning protrusion 17 is welded and fixed on the upper end face of the linkage shaft 16. The positioning protrusion 17 has a hexagonal cross-section and slides into the limiting groove 15. In order to realize the transmission between the inner rod 7 and the linkage shaft 16, a hexagonal limiting groove 15 is provided on the lower end face of the inner rod 7. When the inner rod 7 rotates, the linkage shaft 16 can be driven to rotate synchronously through the cooperation of the positioning protrusion 17 and the limiting groove 15.

[0036] Furthermore, discharge ports 21 are symmetrically provided on both sides of the lower end face of the base body 1, and the cross-section of the discharge port 21 is set in a trapezoidal structure. Its inner sidewall is polished smooth to avoid paint residue. This structure can increase the paint discharge area and prevent paint from accumulating and clogging during the discharge process.

[0037] When in use, the cast iron coating to be filtered is poured in from the opening at the top of the main frame cylinder 2. After the coating enters the interior of the main frame cylinder 2, it falls on the filter screen plate 6.

[0038] Start the drive motor 11, which drives the drive gear 10 to rotate. The drive gear 10 synchronously drives the helical gear 8 and the helical gear 9 to rotate. The helical gear 8 drives the connecting rod 3 to rotate. The crushing plate 4 rotates with the connecting rod 3 to impact and crush the lumps in the paint. The crushed paint falls through the mesh of the filter screen 6 into the filter screen 14 inside the base body 1. At the same time, the scraper 5 rotates with the connecting rod 3 to scrape off the impurities and paint remaining on the surface of the filter screen 6 to prevent the mesh from clogging.

[0039] Meanwhile, the helical gear 9 drives the inner rod 7 to rotate. The inner rod 7, through the cooperation of the limiting groove 15 and the positioning protrusion 17, drives the linkage shaft 16 to rotate. The linkage shaft 16 drives the screening gear 18 to rotate. The screening gear 18 drives the connecting gears 19 on both sides to rotate. The connecting gears 19 drive the eccentric wheel 20 to rotate. When the protruding end of the eccentric wheel 20 rotates upward, it lifts the filter screen plate 14, and the return spring 13 is stretched. When the protruding end of the eccentric wheel 20 rotates downward, the filter screen plate 14 is reset under the elastic force of the return spring 13. This cycle is repeated to realize the up-and-down sliding of the filter screen plate 14, which performs secondary screening of the coating and further removes fine impurities.

[0040] After secondary screening, the coating material falls through the mesh of filter plate 14 into the bottom of the base body 1, and is finally discharged from the discharge port 21 of the trapezoidal structure, completing the entire filtration process.

[0041] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A cast iron coating filtration mechanism, comprising a base body (1) and a main frame cylinder (2) disposed on the upper end face of the base body (1), characterized in that, Also includes: The connecting rod (3) is rotatably connected to the inside of the main frame (2). The filter screen plate (6) is fixed inside the main frame (2). The outer surface of the connecting rod (3) is provided with a crushing mechanism for crushing the paint entering the main frame (2). The inner rod (7) is rotatably connected to the inner side of the connecting rod (3). The upper end face of the main frame (2) is fixed with a driving mechanism for driving and adjusting the connecting rod (3) and the inner rod (7). The filter screen plate 2 (14) is slidably attached to the inner side of the base body (1). The lower end of the base body (1) is provided with a screening mechanism to drive the filter screen plate 2 (14) to slide up and down for screening.

2. The cast iron coating filtration mechanism according to claim 1, characterized in that: The crushing mechanism includes a crushing plate (4) and a scraper (5). The crushing plate (4) is fixed on the outer surface of the connecting rod (3), and the connecting rod (3) is rotatably connected to the inner side of the main frame (2). The scraper (5) is fixed on the outer surface of the connecting rod (3), and the scraper (5) is located on the upper end face of the filter screen plate (6).

3. The cast iron coating filtration mechanism according to claim 2, characterized in that: The drive mechanism includes a helical gear one (8), a helical gear two (9), a drive gear (10), and a drive motor (11). The helical gear one (8) is fixed on the outer surface of the connecting rod (3), the helical gear two (9) is fixed on the upper end face of the inner rod (7), the drive motor (11) is fixed on the upper end face of the main frame (2), and the drive gear (10) is fixed on the output end of the drive motor (11). The drive gear (10) meshes with the helical gear one (8) and the helical gear two (9).

4. The cast iron coating filtration mechanism according to claim 1, characterized in that: The base body (1) has a positioning groove (12) inside, and a reset spring (13) is uniformly fixed inside the positioning groove (12). The upper end face of the reset spring (13) is fixed with a bearing plate and connected to the filter screen plate (14) by bolts.

5. A cast iron coating filter mechanism according to claim 4, characterized in that: The screening mechanism includes a linkage shaft (16), a screening gear (18), a connecting gear (19), and an eccentric wheel (20). The linkage shaft (16) is rotatably connected to the center of the base body (1). The screening gear (18) is fixed to the lower end face of the linkage shaft (16). The connecting gear (19) is meshed with the left and right sides of the screening gear (18), and the other end of the connecting gear (19) extends outward through the center of the base body (1). The eccentric wheel (20) is fixed to the tail end of the connecting gear (19), and the other end of the eccentric wheel (20) is in contact with the bottom surface of the filter screen plate (14).

6. The cast iron coating filtration mechanism according to claim 5, characterized in that: The lower end face of the inner rod (7) is provided with a limiting groove (15), and the upper end face of the linkage shaft (16) is fixed with a positioning protrusion (17). The cross-section of the positioning protrusion (17) is a hexagonal structure and it is slidably embedded in the limiting groove (15).

7. The cast iron coating filtration mechanism according to claim 1, characterized in that: The lower end face of the base body (1) is symmetrically provided with a discharge port (21), and the cross-section of the discharge port (21) is set in a trapezoidal structure.

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