Oxidation-resistant wear-resistant precious metal melt grinding device

Abstract

The utility model provides an antioxidative wear-resistant precious metal melt grinding device relates to precious metal melt grinding field, including: precious metal pulverizer, upper cover and grinding roll, precious metal pulverizer upper surface is connected with the upper cover in sliding mode through joining column, the lower end of upper cover is equipped with grinding roll, the inside of upper cover is embedded with fan, and the fan is equipped with the fan. A protective net plate is arranged at the lower end of the fan, material guiding plates are symmetrically fixed to the lower end of the grinding roller, a first air outlet net opening is formed in the upper portion of the inclined face of each material guiding plate, a second air outlet net opening is fixed to the lower surface of each material guiding plate, and the inner walls of the left side and the right side of the precious metal grinding machine are connected with a motor and an auxiliary overturning column through electric push rods correspondingly; the right side of the motor is in shaft connection with a main overturning column, and a screening frame is arranged between the main overturning column and the auxiliary overturning column. The problem that in the prior art, when a plurality of grinding rollers grind precious metal, splashing is prone to occurring, so that the precious metal melt loss cost is high is solved.

Description

Technical Field

[0001] The utility model relates to the field of precious metal molten material grinding, in particular to an oxidation-resistant and wear-resistant precious metal molten material grinding device. Background Art

[0002] In the processing of antioxidant and wear-resistant precious metals, a grinding device is used to grind the smelted precious metal melt into powder for use. After searching, the prior art (application number: CN202320779963.0) records that "the grinding equipment is improved, a movable wedge-shaped movable block is provided, and a filter screen is placed on the inner surface of the wedge-shaped movable block to provide grinding support for the grinding roller, thereby effectively improving the grinding effect. When the wedge-shaped movable block reciprocates outward or inward, the material in the filter screen can be shaken to avoid clogging of the filter screen and speed up the filtration rate." However, in the prior art, multiple grinding rollers are prone to splashing when grinding precious metals, resulting in high loss costs of precious metal melts. Utility Model Content

[0003] In order to overcome the defects of the prior art, an antioxidant and wear-resistant precious metal molten material grinding device is provided to solve the problem that in the prior art, when multiple grinding rollers grind precious metals, splashing easily leads to high loss cost of precious metal molten material.

[0004] To achieve the above-mentioned purpose, an oxidation-resistant and wear-resistant precious metal melt grinding device is provided, comprising: a precious metal grinding machine, an upper cover and a grinding roller, wherein the upper surface of the precious metal grinding machine is slidably connected to the upper cover through a connecting column, and a grinding roller is arranged at the lower end of the upper cover.

[0005] A fan is embedded and installed inside the upper cover, a protective mesh plate is arranged at the lower end of the fan, a material guide plate is symmetrically fixed to the lower end of the grinding roller, a first air outlet mesh port is arranged above the inclined surface of the material guide plate, a second air outlet mesh port is fixed to the lower surface of the material guide plate, the left and right inner walls of the precious metal grinding mill are respectively connected to a motor and an auxiliary turning column through an electric push rod, a main turning column is connected to the right shaft of the motor, and a screening frame is arranged between the main turning column and the auxiliary turning column.

[0006] Furthermore, the inner wall of the precious metal grinding mill is connected with a grinding roller via a transmission shaft, a visual window is installed on the front surface of the precious metal grinding mill, and a feed port is arranged at the upper end of the precious metal grinding mill.

[0007] Furthermore, the upper surface of the feed port is covered with an upper cover, the inner wall of the feed port is welded with an insertion frame, a scraper is inserted into the insertion frame; and the scraper is in contact with the upper roller surface of the grinding roller.

[0008] Furthermore, a discharge port is arranged on the lower end surface of the precious metal grinding mill, a handle is welded on the upper surface of the upper cover, and the protective mesh plate is welded on the lower surface of the upper cover.

[0009] Furthermore, the first air outlet mesh port and the second air outlet mesh port are connected to a fan via an air supply pipe, a screen is welded on the lower end surface of the screening frame, and a vibration motor is installed on the rear side surface of the screening frame.

[0010] Furthermore, fixed shafts are welded on the left and right sides of the screening frame, and plug-in grooves are provided on the outer end faces of the fixed shafts; and the plug-in grooves correspond to the shapes of the main flip column and the auxiliary flip column.

[0011] Furthermore, the main flip column and the auxiliary flip column are symmetrically welded with limiting protrusions, and the surface of the fixed shaft is slidably connected with a connecting ring, and the connecting ring is connected to the precious metal grinding mill through a spring support.

[0012] The beneficial effect of the utility model lies in that the antioxidant and wear-resistant precious metal molten material grinding device of the utility model utilizes the fan on the surface of the upper cover to send air downwards, so as to prevent the precious metal molten material from being lifted up or splashed during grinding, and the ground precious metal molten material is blown into the screening frame through the first air outlet mesh port and the second air outlet mesh port, so as to accelerate the falling of the powdered precious metal molten material to be screened and discharged, and reduce the residual loss of the powdered precious metal molten material, and drive the main flip column and the auxiliary flip column to rotate by the motor, so as to drive the screening frame inserted and clamped between the main flip column and the auxiliary flip column to turn over, so that the precious metal molten material on the screen surface that is not sufficiently ground is discharged and ground again, so that the grinding device is convenient for efficiently discharging the precious metal molten material, saving the cost of grinding and processing of antioxidant and wear-resistant precious metal molten material, and improving the practicality of the grinding device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front view structural schematic diagram of an oxidation-resistant and wear-resistant precious metal molten material grinding device according to an embodiment of the utility model.

[0014] Figure 2 It is a schematic diagram of the front cross-sectional structure of the oxidation-resistant and wear-resistant precious metal molten material grinding device according to an embodiment of the utility model.

[0015] Figure 3 It is a schematic diagram of the front cross-sectional structure of the screening frame according to an embodiment of the utility model.

[0016] Figure 4 It is a schematic diagram of the three-dimensional structure of the main flip column according to an embodiment of the utility model.

[0017] In the figure: 1. Precious metal grinding mill; 11. Feed inlet; 12. Connecting column; 13. Visual window; 14. Discharge port; 15. Plug-in frame; 16. First air outlet mesh port; 17. Guide plate; 18. Second air outlet mesh port; 19. Air supply duct; 2. Upper cover; 21. Handle; 22. Fan; 23. Protective mesh plate; 3. Grinding roller; 31. Transmission shaft; 4. Scraper; 5. Main turning column; 51. Electric push rod; 52. Motor; 53. Auxiliary turning column; 54. Limiting bump; 6. Screening frame; 61. Screen; 62. Vibration motor; 63. Connecting ring; 64. Plug-in slot; 65. Fixed shaft; 66. Spring support. DETAILED DESCRIPTION

[0018] Reference Figures 1 to 4 As shown, the utility model provides an oxidation-resistant and wear-resistant precious metal melt grinding device, comprising: a precious metal grinding machine 1, an upper cover 2 and a grinding roller 3. The upper surface of the precious metal grinding machine 1 is slidably connected to the upper cover 2 through a connecting column 12, and the lower end of the upper cover 2 is provided with a grinding roller 3.

[0019] A fan 22 is embedded and installed inside the upper cover 2, and a protective mesh plate 23 is arranged at the lower end of the fan 22. A material guide plate 17 is symmetrically fixed to the lower end of the grinding roller 3. A first air outlet mesh port 16 is arranged above the inclined surface of the material guide plate 17, and a second air outlet mesh port 18 is fixed to the lower surface of the material guide plate 17. The inner walls of the left and right sides of the precious metal grinding mill 1 are respectively connected to a motor 52 and an auxiliary turning column 53 through an electric push rod 51. The main turning column 5 is connected to the right shaft of the motor 52, and a screening frame 6 is arranged between the main turning column 5 and the auxiliary turning column 53.

[0020] Working principle: first, lift the upper cover 2, put the antioxidant and wear-resistant precious metal melt into the precious metal grinding mill 1, and make the rotating grinding roller 3 grind the precious metal melt into powder and let it fall on the guide plate 17. The precious metal melt on the plate surface is blown through the first air outlet mesh port 16 and the second air outlet mesh port 18 on the side of the guide plate 17 to fall into the screening frame 6. The falling precious metal melt is screened by the vibration motor 62, and the sufficiently ground precious metal melt is discharged from the discharge port 14 at the lower end of the precious metal grinding mill 1. When the grinding is completed, the vibration motor 62 stops working, and the electric push rod 51 pushes the main flip column 5 and the auxiliary flip column 53 to be plugged into the fixed shaft 65 at the side end of the screening frame 6. The main flip column 5 is driven to rotate by the motor 52, driving the screening frame 6 to turn over, so that the precious metal melt that is not sufficiently ground left on the upper surface of the screening frame 6 is discharged, and then it is put into the feed port 11 to be ground into powder again.

[0021] In this embodiment, the inner wall of the precious metal grinding mill 1 is connected to a grinding roller 3 via a transmission shaft 31 , a visual window 13 is installed on the front surface of the precious metal grinding mill 1 , and a feed port 11 is provided at the upper end of the precious metal grinding mill 1 .

[0022] As a preferred embodiment, the plurality of grinding rollers 3 grind the precious metal melt into powder. The viewing window 13 is convenient for observing the grinding of the precious metal melt.

[0023] In this embodiment, the upper surface of the feed port 11 is covered with an upper cover 2 , an insertion frame 15 is welded to the inner wall of the feed port 11 , a scraper 4 is inserted into the insertion frame 15 ; and the scraper 4 is in contact with the upper roller surface of the grinding roller 3 .

[0024] As a preferred embodiment, the scraper 4 in the plug-in frame 15 is convenient for scraping away the precious metal melt on the roller surface of the grinding roller 3, and is also convenient for taking out and replacing the scraper 4.

[0025] In this embodiment, a discharge port 14 is provided on the lower end surface of the precious metal grinding mill 1 , a handle 21 is welded on the upper surface of the upper cover 2 , and a protective mesh plate 23 is welded on the lower surface of the upper cover 2 .

[0026] As a preferred embodiment, the discharge port 14 is convenient for discharging the ground precious metal melt and the unground precious metal melt. The protective mesh plate 23 is convenient for blocking the splashing protective mesh plate 23 and discharging the wind of the fan 22 downward.

[0027] In this embodiment, the first air outlet 16 and the second air outlet 18 are connected to a fan through an air supply pipe 19 , a screen 61 is welded to the lower end surface of the screening frame 6 , and a vibration motor 62 is installed on the rear side of the screening frame 6 .

[0028] As a preferred embodiment, the screen 61 screens the precious metal melt falling from the guide plate 17, so that the precious metal melt that does not meet the grinding requirements is left on the upper surface of the screen 61. The vibration motor 62 drives the screening frame 6 to vibrate up and down. A counterweight is provided on the front side of the screening frame 6 to maintain the balance of the front and rear sides.

[0029] In this embodiment, a fixed shaft 65 is welded to the left and right sides of the screening frame 6 , and an inserting groove 64 is formed on the outer end surface of the fixed shaft 65 ; and the inserting groove 64 corresponds to the shape of the main turning column 5 and the auxiliary turning column 53 .

[0030] As a preferred embodiment, the insertion groove 64 on the side of the fixed shaft 65 is convenient for the main flip column 5 and the auxiliary flip column 53. The main flip column 5 and the auxiliary flip column 53 drive the screening frame 6 to flip over, so that the precious metal melt on the upper surface of the screening frame 6 is discharged for re-grinding.

[0031] In this embodiment, the main flip column 5 and the auxiliary flip column 53 are symmetrically welded with limiting protrusions 54, and the surface of the fixed shaft 65 is slidably connected with a connecting ring 63, which is connected to the precious metal grinding mill 1 through a spring support 66.

[0032] As a preferred embodiment, the limiting protrusion 54 facilitates the main flip column 5 and the auxiliary flip column 53 to play a role in limiting the sliding of the fixed shaft 65 when they are plugged and rotated with the plug slot 64. The connecting ring 63 is used to connect the spring support 66 so that the spring support 66 can elastically support the screening frame 6.

[0033] The antioxidant and wear-resistant precious metal molten material grinding device of the utility model can effectively solve the problem in the prior art that when multiple grinding rollers are used to grind precious metals, splashing easily leads to high loss cost of precious metal molten material. It is convenient to accelerate the falling and screening discharge of powdered precious metal molten material, reduce the residual loss of powdered precious metal molten material, facilitate the grinding device to efficiently discharge precious metal molten material, save the cost of grinding and processing of antioxidant and wear-resistant precious metal molten material, improve the practicability of the grinding device, and is suitable for antioxidant and wear-resistant precious metal molten material grinding device.

Claims

1. An oxidation-resistant and wear-resistant precious metal molten material grinding device, comprising: A precious metal grinding mill (1), an upper cover (2) and a grinding roller (3), wherein the upper surface of the precious metal grinding mill (1) is slidably connected to the upper cover (2) via a connecting column (12), and the lower end of the upper cover (2) is provided with a grinding roller (3), characterized in that: A fan (22) is embedded and installed inside the upper cover (2), and a protective mesh plate (23) is arranged at the lower end of the fan (22). A material guide plate (17) is symmetrically fixed to the lower end of the grinding roller (3), and a first air outlet mesh opening (16) is arranged above the inclined surface of the material guide plate (17), and a second air outlet mesh opening (18) is fixed to the lower surface of the material guide plate (17). The inner walls on the left and right sides of the precious metal grinding mill (1) are respectively connected to a motor (52) and an auxiliary turning column (53) through an electric push rod (51), and the right side axis of the motor (52) is connected to a main turning column (5), and a screening frame (6) is arranged between the main turning column (5) and the auxiliary turning column (53).

2. The oxidation-resistant and wear-resistant precious metal molten material grinding device according to claim 1 is characterized in that: The inner wall of the precious metal grinding mill (1) is connected to a grinding roller (3) via a transmission shaft (31), a visual window (13) is installed on the front surface of the precious metal grinding mill (1), and a feed port (11) is provided at the upper end of the precious metal grinding mill (1).

3. The oxidation-resistant and wear-resistant precious metal molten material grinding device according to claim 2 is characterized in that: The upper surface of the feed port (11) is covered with an upper cover (2), the inner wall of the feed port (11) is welded with an insertion frame (15), a scraper (4) is inserted into the insertion frame (15), and the scraper (4) is in contact with the upper roller surface of the grinding roller (3).

4. The oxidation-resistant and wear-resistant precious metal molten material grinding device according to claim 1 is characterized in that: The lower end surface of the precious metal grinding mill (1) is provided with a discharge port (14), the upper surface of the upper cover (2) is welded with a handle (21), and the protective mesh plate (23) is welded to the lower surface of the upper cover (2).

5. The oxidation-resistant and wear-resistant precious metal molten material grinding device according to claim 1 is characterized in that: The first air outlet mesh port (16) and the second air outlet mesh port (18) are connected to a fan via an air supply pipe (19); a screen (61) is welded to the lower end surface of the screening frame (6); and a vibration motor (62) is installed on the rear side surface of the screening frame (6).

6. The oxidation-resistant and wear-resistant precious metal molten material grinding device according to claim 1 is characterized in that: The left and right sides of the screening frame (6) are welded with a fixed shaft (65), and the outer end surface of the fixed shaft (65) is provided with an inserting groove (64); and the inserting groove (64) corresponds to the shape of the main turning column (5) and the auxiliary turning column (53).

7. The oxidation-resistant and wear-resistant precious metal molten material grinding device according to claim 6, characterized in that: The main turning column (5) and the auxiliary turning column (53) are symmetrically welded with a limiting protrusion (54) on the cylindrical surface, and the surface of the fixed shaft (65) is slidably connected with a connecting ring (63), and the connecting ring (63) is connected to the precious metal grinding machine (1) through a spring support (66).

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