A defective product separating device for high-chromium steel ball production

Abstract

The utility model discloses a kind of defective product separating devices for high chromium steel ball production, related to high chromium steel ball production field, to solve the problem of the quality of steel ball cannot be guaranteed in prior art according to the diameter of steel ball to screen steel ball.The first conveying groove is formed between the adjacent two first partition vertical plates and the upper baffle and the first partition vertical plate along the upper end of the upper surface, and a steel ball falling groove is opened in the middle of each first conveying groove along the upper end surface of the upper surface;The second conveying groove is formed between the adjacent two second partition vertical plates and the lower baffle and the second partition vertical plate along the lower end of the lower surface, and a steel ball weighing assembly is arranged in the second conveying groove, the steel ball weighing assembly includes pressure sensor and upper support, and the upper support is installed on the upper end of the pressure sensor;A plurality of driving cylinders are installed in array on the lower end of the lower surface, and the output rod end of the driving cylinder is connected with the steel ball weighing assembly through the lower surface.

Description

Technical Field

[0001] This utility model relates to the field of high-chromium steel ball production, specifically a defective product separation device for high-chromium steel ball production. Background Technology

[0002] High-chromium steel balls, as an important wear-resistant material, play an irreplaceable role in many industrial fields. The production of high-chromium steel balls typically involves several key processes. The smelting process melts raw materials into molten steel. During smelting, parameters such as temperature, smelting time, and atmosphere must be strictly controlled to ensure the quality and purity of the molten steel. The molten steel is then cast to form the steel ball blank. During casting, the design of the mold and the control of the casting speed have a significant impact on the shape and internal quality of the steel ball. The formed steel ball blank requires heat treatment. Through processes such as quenching and tempering, the internal structure of the steel ball is adjusted to improve its hardness and toughness, giving it excellent wear resistance. Finally, the heat-treated steel ball undergoes surface treatment, such as polishing and grinding, to remove surface oxide scale and burrs, improving the surface quality and dimensional accuracy of the steel ball.

[0003] During the production of high-chromium steel balls, a certain number of defective products will inevitably be produced due to various factors. Defective products need to be separated, which is generally done by screening by diameter to separate steel balls that are not the right size. For example, Chinese Patent CN 118904725 A (A Steel Ball Screening Device) includes a screening plate and a limiting seat. The top surface of the screening plate has several screen holes equidistantly spaced between two limiting seats. A contraction groove is formed on the corresponding side of each of the two limiting seats, and a ball-shoveling mechanism is installed within the contraction groove. An L-shaped bracket is fixed to one side of the screening plate, and a power mechanism cooperating with the ball-shoveling mechanism is installed on the bracket. This invention utilizes the ball-shoveling mechanism to rotate the internal threaded sleeve within the mechanism. The transmission screw continuously passes through the internal threaded sleeve under the threaded structure and pushes the shovel block, causing the shovel blocks in the two sets of ball-shoveling mechanisms to slide towards each other. This allows the inclined surface of the shovel block to contact the steel ball stuck in the screen hole, thus generating an upward force on the steel ball. This causes the steel ball to slide along the inclined surface of the shovel block and exit from the inside of the screen hole, continuing to roll along the inclined surface of the screen hole, thereby preventing the steel ball from getting stuck inside the screen hole and causing screening blockage. However, during the smelting process, factors such as inaccurate temperature control, excessively long or short smelting time, and unfavorable atmosphere can all lead to quality problems in the molten steel, such as defects like porosity. During casting, mold wear can cause defects such as dimensional deviations in the steel balls. Selecting steel balls solely based on their diameter cannot guarantee their quality; separating defective balls by weight is a more effective method. Utility Model Content

[0004] The purpose of this invention is to provide a defective product separation device for the production of high-chromium steel balls, so as to solve the problem mentioned in the background art that screening steel balls according to their diameter cannot guarantee the quality of the steel balls.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a defective product separation device for high-chromium steel ball production, comprising a workbench, the workbench including an upper table surface, upper side baffles fixed on both sides of the upper end of the upper table surface, and lower side baffles fixed on both sides of the lower end of the upper table surface, the lower ends of the two lower side baffles being jointly fixed to a lower table surface; first dividing plates are fixed in a left-right array in the middle area of ​​the upper end of the upper table surface, and a first conveying groove is formed on the upper end of the upper table surface between two adjacent first dividing plates and between the upper side baffles and the first dividing plates. A steel ball drop groove is provided in the middle of each of the first conveying grooves along the surface; second partition plates are fixed in an array on the left and right sides of the middle area at the upper end of the lower platform, and a second conveying groove is formed between two adjacent second partition plates and between the lower baffle and the second partition plate at the upper end of the lower platform. A steel ball weighing assembly is provided in the second conveying groove. The steel ball weighing assembly includes a pressure sensor and an upper support, with the upper support installed on the upper end of the pressure sensor; multiple drive cylinders are arrayed at the lower end of the lower platform, and the output rod end of the drive cylinder passes through the lower platform and is connected to the steel ball weighing assembly.

[0006] Preferably, both the lower baffle and the upper baffle include longitudinal plates. Separation areas are formed at the upper end of the upper platform along the two longitudinal plates and at the upper end of the lower platform along the two longitudinal plates. A steel ball weighing groove is provided in the center of the upper end face of the upper support. An inclined feeding groove is provided on the outer surface of the upper support along the front end of the steel ball weighing groove. The inclined feeding groove is connected to the steel ball weighing groove and has a smooth transition at the lower end face. The inclined feeding groove is inclined.

[0007] Preferably, the steel ball weighing assembly further includes a connecting horizontal plate, which is fixed to the lower end of the pressure sensor. Four fixed uprights are fixed between the upper and lower platforms along each second conveying groove. Each group of four fixed uprights is located at the four corners of the corresponding connecting horizontal plate, and the connecting horizontal plate slides along the fixed uprights.

[0008] Preferably, the upper surface of the upper platform has an arc-shaped groove at the rear end of the separation area. A steel ball distributing roller is connected between the two upper longitudinal plates along the upper end of the arc-shaped groove. A first drive motor is installed on one side of the upper baffle. The output shaft of the first drive motor is connected to one end of the steel ball distributing roller. The other end of the steel ball distributing roller is rotatably connected to the upper baffle on the other side via a shaft. Multiple inlet and outlet grooves are horizontally arranged on the outer surface of the steel ball distributing roller.

[0009] Preferably, an upper baffle is fixed between the two upper baffles along the upper end of the rear end of the steel ball distribution roller, and the front end face of the upper baffle is in contact with the outer surface of the steel ball distribution roller.

[0010] Preferably, a second drive motor is installed on one side of the upper baffle, and a rotating shaft is installed between the two upper baffles along the output shaft end of the second drive motor. A rotating plate is fixed outside the rotating shaft along the area where the first conveying groove is located, and the lower end of the rotating plate extends obliquely to the front end of the steel ball falling groove.

[0011] Preferably, the upper baffle and the lower baffle further include a second inclined plate, which is integrally connected to the front end of the longitudinal plate. A feeding area is formed at the upper end of the upper table along the space between the two second inclined plates and at the upper end of the lower table along the space between the two second inclined plates. The upper baffle also includes a first inclined plate, which is integrally connected to the rear end of the longitudinal plate. A feeding area is formed at the upper end of the upper table along the space between the two second inclined plates. Support plates are welded and fixed to the front and rear ends of the lower end of the workbench.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] (1) In this utility model, each high-chromium steel ball is accurately weighed by the steel ball weighing component, which can accurately determine whether the weight of the steel ball meets the standard, thereby effectively separating out substandard steel balls with substandard size or internal holes, greatly improving the separation accuracy and ensuring the quality stability of the product.

[0014] (2) In this utility model, when the weight meets the standard, the drive cylinder pushes the steel ball weighing component upward, and the qualified high-chromium steel ball falls down the inclined feeding chute to the upper end of the upper platform and then falls through the first conveying chute; when the weight is too large or too small, the drive cylinder pulls the steel ball weighing component downward, and the high-chromium steel ball falls down the inclined feeding chute to the upper end of the lower platform and then falls through the second conveying chute, thus separating the qualified and defective high-chromium steel balls for separate conveying. The two parts are arranged vertically, with a compact overall structure and reasonable layout, facilitating coordinated operation.

[0015] (3) In this utility model, steel balls are distributed by a steel ball distribution roller and controlled by a rotating plate, which realizes the rapid and orderly conveying and weighing of steel balls, improves production efficiency and reduces production costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a defective product separation device for the production of high-chromium steel balls according to the present invention, viewed from the main perspective.

[0017] Figure 2 This is a schematic diagram of the overall structure of a defective product separation device for the production of high-chromium steel balls according to the present invention, viewed from the rear.

[0018] Figure 3 This is a schematic diagram of the workbench of a defective product separation device for the production of high-chromium steel balls according to this utility model;

[0019] Figure 4 This is a side view of a defective product separation device for the production of high-chromium steel balls according to this utility model;

[0020] Figure 5 This is a cross-sectional view at section AA of a defect separation device for the production of high-chromium steel balls according to this utility model;

[0021] Figure 6 This is a schematic diagram of the steel ball weighing component of a defective product separation device for the production of high-chromium steel balls according to this utility model.

[0022] In the diagram: 1. Workbench; 2. Upper table surface; 3. Upper side baffle; 4. First inclined plate; 5. Longitudinal plate; 6. Second inclined plate; 7. Arc-shaped slot; 8. Upper baffle; 9. First dividing plate; 10. First conveying trough; 11. Steel ball drop trough; 12. Lower baffle; 13. Lower table surface; 14. Second dividing plate; 15. Second conveying trough; 16. Supporting plate; 17. First drive motor; 18. Steel ball distribution roller; 19. Inlet / outlet trough; 20. Second drive motor; 21. Rotating shaft; 22. Rotating plate; 23. Drive cylinder; 24. Steel ball weighing assembly; 25. Connecting horizontal plate; 26. Pressure sensor; 27. Upper support; 28. Steel ball weighing trough; 29. ​​Inclined discharge trough; 30. Fixed upright. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Please see Figures 1-6 One embodiment of this utility model is a defective product separation device for the production of high-chromium steel balls, which mainly consists of a workbench 1, a steel ball distribution mechanism, a steel ball weighing mechanism, and a conveying and blocking mechanism.

[0025] The workbench 1 is the supporting structure of the entire device, comprising an upper platform 2 and a lower platform 13. Upper baffles 3 are fixed to both sides of the upper end of the upper platform 2, and lower baffles 12 are fixed to both sides of the lower end of the upper platform 2. The lower ends of the two lower baffles 12 are jointly fixed to the lower platform 13. Support plates 16 are welded and fixed to the front and rear ends of the lower end of the workbench 1, providing stable support for the entire device. This layered workbench design makes the device structure more compact and facilitates the installation and layout of various components.

[0026] Both the lower baffle 12 and the upper baffle 3 include longitudinal plates 5. Separation areas are formed at the upper end of the upper platform 2 along the space between the two longitudinal plates 5, and at the upper end of the lower platform 13 along the space between the two longitudinal plates 5. The upper baffle 3 and the lower baffle 12 also include a second inclined plate 6 and a first inclined plate 4. The second inclined plate 6 is integrally connected to the front end of the longitudinal plates 5, and a discharge area is formed at the upper end of the upper platform 2 along the space between the two second inclined plates 6, and at the upper end of the lower platform 13 along the space between the two second inclined plates 6. The first inclined plate 4 is integrally connected to the rear end of the longitudinal plates 5, and a loading area is formed at the upper end of the upper platform 2 along the space between the two second inclined plates 6. The design of the first inclined plate 4 and the second inclined plate 6 provides guidance for the loading and unloading of steel balls, allowing them to smoothly enter and leave the device, thus improving the efficiency of loading and unloading.

[0027] The upper platform 2 has first dividing plates 9 fixedly arranged in a left-right array in the middle area of ​​its upper end. A first conveying trough 10 is formed between two adjacent first dividing plates 9 and between the upper baffle 3 and the first dividing plates 9 at the upper end of the upper platform 2. A steel ball drop trough 11 is formed in the middle of each first conveying trough 10 on the upper surface of the upper platform 2. The lower platform 13 has second dividing plates 14 fixedly arranged in a left-right array in the middle area of ​​its upper end. A second conveying trough 15 is formed between two adjacent second dividing plates 14 and between the lower baffle 12 and the second dividing plates 14 at the upper end of the lower platform 13. The design of the first conveying trough 10 and the second conveying trough 15 provides a clear channel for the conveying of steel balls, allowing the steel balls to move along a predetermined path and improving conveying efficiency.

[0028] The steel ball distributing mechanism mainly consists of a first drive motor 17, a steel ball distributing roller 18, and other components. An arc-shaped slot 7 is formed on the upper surface of the upper platform 2 along the rear end of the separation area. The steel ball distributing roller 18 is connected between the two upper longitudinal plates 5 along the upper end of the arc-shaped slot 7. The first drive motor 17 is installed on one side of the upper baffle 3. The output shaft of the first drive motor 17 is connected to one end of the steel ball distributing roller 18, and the other end of the steel ball distributing roller 18 is rotatably connected to the other upper baffle 3 via a shaft. Multiple inlet and outlet slots 19 are horizontally arrayed on the outer surface of the steel ball distributing roller 18. An upper baffle 8 is fixed between the two upper baffles 3 along the upper end of the rear end of the steel ball distributing roller 18, with the front end of the upper baffle 8 adhering to the outer surface of the steel ball distributing roller 18. During operation, high-chromium steel balls are conveyed to the area formed between the first inclined plates 4 at the upper end of the upper platform 2. The first drive motor 17 drives the steel ball distributing roller 18 to rotate. When the inlet / outlet groove 19 completely passes the obstruction of the upper stop bar 8, the high-chromium steel ball at the upper end enters the steel ball distributing roller 18 through the inlet / outlet groove 19 and waits for distribution within the steel ball distributing roller 18. The first drive motor 17 continues to drive the steel ball distributing roller 18 to rotate. When the rotation of the inlet / outlet groove 19 of the steel ball distributing roller 18 just breaks through the obstruction of the arc-shaped slot 7, the high-chromium steel ball in the steel ball distributing roller 18 moves out through the inlet / outlet groove 19. The first drive motor 17 drives the steel ball distributing roller 18 to rotate in the opposite direction, and the opening of the inlet / outlet groove 19 is blocked by the arc-shaped slot 7. Only one high-chromium steel ball moves out of each inlet / outlet groove 19. This design of the steel ball distributing mechanism can achieve precise distribution of high-chromium steel balls, ensuring that only one steel ball enters the subsequent weighing process each time, thus improving the accuracy and reliability of weighing.

[0029] The conveying blocking mechanism mainly consists of components such as a rotating shaft 21 and a rotating plate 22. A second drive motor 20 is installed on one side of the upper baffle 3. A rotating shaft 21 is installed between the two upper baffles 3 along the output shaft end of the second drive motor 20. A rotating plate 22 is fixed outside the rotating shaft 21 along the area where the first conveying groove 10 is located. The lower end of the rotating plate 22 extends obliquely to the front end of the steel ball falling groove 11. The second drive motor 20 drives the rotating shaft 21 to rotate, thereby driving the rotating plate 22 to rotate, thus controlling the falling of the steel ball.

[0030] The steel ball weighing mechanism is located within the second conveying trough 15. It includes a steel ball weighing assembly 24, which comprises a pressure sensor 26, an upper support 27, and a connecting horizontal plate 25. The upper support 27 is mounted on the upper end of the pressure sensor 26. A steel ball weighing groove 28 is centrally located on the upper surface of the upper support 27. An inclined feeding groove 29 is formed along the front end of the steel ball weighing groove 28 on the outer surface of the upper support 27. The inclined feeding groove 29 communicates with the steel ball weighing groove 28 and has a smooth transition at its lower end. The inclined feeding groove 29 is inclined. The connecting horizontal plate 25 is fixed to the lower end of the pressure sensor 26. Four fixed uprights 30 are fixed between the upper platform 2 and the lower platform 13 within each second conveying trough 15. Each group of four fixed uprights 30 is located at the four corners of the corresponding connecting horizontal plate 25. The connecting horizontal plate 25 slides along the fixed uprights 30. Multiple drive cylinders 23 are arrayed at the lower end of the lower platform 13. The output rods of the drive cylinders 23 pass through the lower platform 13 and are connected to the steel ball weighing assembly 24. The high-chromium steel ball is blocked by the rotating plate 22 and falls through the steel ball drop groove 11 into the steel ball weighing groove 28 on the upper end face of the upper support member 27 inside the steel ball drop groove 11. The pressure sensor 26 senses the pressure and determines its weight.

[0031] When the weight reaches the target, the output rod of the corresponding drive cylinder 23 extends and pushes the steel ball weighing assembly 24 upward to a distance higher than the upper platform 2. The second drive motor 20 drives the rotating shaft 21 to rotate, and the rotating plate 22 rotates and opens. The high-chromium steel ball that meets the target falls down the inclined feeding chute 29 to the upper end of the upper platform 2 and then falls through the first conveying chute 10.

[0032] If the weight is too large or too small, it indicates the presence of internal holes or non-compliant dimensions. In this case, the output rod of the corresponding drive cylinder 23 retracts, pulling the steel ball weighing assembly 24 downwards until the high-chromium steel ball is below the lower end of the upper platform 2. The high-chromium steel ball then falls along the inclined feeding chute 29 to the upper end of the lower platform 13 and then through the second conveying chute 15. The front end of this product separation device has two conveying structures to separately transport qualified and defective high-chromium steel balls. This steel ball weighing mechanism design enables precise weighing of each high-chromium steel ball. Precise measurement by the pressure sensor 26 accurately determines whether the weight of the steel ball meets the standard, effectively separating defective steel balls. Simultaneously, the cooperation of the drive cylinder 23 and the fixed upright 30 ensures stable up-and-down movement of the steel ball weighing assembly 24, guaranteeing weighing accuracy and reliability. The inclined feeding chute 29 design allows the steel balls to slide smoothly, avoiding jamming and accumulation, and improving feeding efficiency.

[0033] When the pressure sensor 26 is used for weighing, it needs to wait a few seconds after the steel ball reaches the upper support 27 before outputting data to avoid the pressure of the falling steel ball affecting the weighing data. The pressure sensor 26 can also be replaced with other weighing sensor elements; a suitable model can be selected according to the requirements, limiting only its functional attributes.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A defective product separation device for the production of high-chromium steel balls, comprising a workbench (1), characterized in that: The workbench (1) includes an upper table (2), upper side baffles (3) are fixed on both sides of the upper end of the upper table (2), and lower side baffles (12) are fixed on both sides of the lower end of the upper table (2). The lower ends of the two lower side baffles (12) are jointly fixed to a lower table (13). The upper middle area of ​​the upper table (2) is fixed with first partition plates (9) arranged in a left-right array. The upper end of the upper table (2) forms a first conveying groove (10) between two adjacent first partition plates (9) and between the upper side baffles (3) and the first partition plates (9). A steel ball drop groove (11) is opened in the middle of each first conveying groove (10) on the upper surface of the upper table (2). The lower table (13) The upper middle area is fixed with a second partition plate (14) arranged in a left and right array. The upper end of the lower platform (13) forms a second conveying groove (15) between two adjacent second partition plates (14) and between the lower side baffle (12) and the second partition plate (14). A steel ball weighing assembly (24) is provided in the second conveying groove (15). The steel ball weighing assembly (24) includes a pressure sensor (26) and an upper support (27). The upper support (27) is installed on the upper end of the pressure sensor (26). Multiple drive cylinders (23) are arranged in an array at the lower end of the lower platform (13). The output rod end of the drive cylinder (23) passes through the lower platform (13) and is connected to the steel ball weighing assembly (24).

2. The defective product separation device for high-chromium steel ball production according to claim 1, characterized in that: Both the lower baffle (12) and the upper baffle (3) include longitudinal plates (5). The upper end of the upper platform (2) forms a separation area between the two longitudinal plates (5) and the upper end of the lower platform (13) forms a separation area between the two longitudinal plates (5). The upper end face of the upper support (27) is provided with a steel ball weighing groove (28) in the center. The outer surface of the upper support (27) is provided with an inclined feeding groove (29) along the front end of the steel ball weighing groove (28). The inclined feeding groove (29) is connected to the steel ball weighing groove (28) and the lower end face is smoothly transitioned. The inclined feeding groove (29) is inclined.

3. The defective product separation device for high-chromium steel ball production according to claim 1, characterized in that: The steel ball weighing assembly (24) also includes a connecting horizontal plate (25), which is fixed to the lower end of the pressure sensor (26). Four fixed uprights (30) are fixed between the upper platform (2) and the lower platform (13) along each second conveying groove (15). Each group of four fixed uprights (30) is located at the four corners of the corresponding connecting horizontal plate (25), and the connecting horizontal plate (25) slides along the fixed uprights (30).

4. A defective product separation device for high-chromium steel ball production according to claim 2, characterized in that: The upper end of the upper platform (2) is provided with an arc-shaped groove (7) along the rear end of the area where the separation area is located. A steel ball distribution roller (18) is connected between the two upper longitudinal plates (5) along the upper end of the arc-shaped groove (7). A first drive motor (17) is installed on one side of the upper baffle (3). The output shaft end of the first drive motor (17) is connected to one end of the steel ball distribution roller (18). The other end of the steel ball distribution roller (18) is rotatably connected to the upper baffle (3) on the other side through a shaft. The outer surface of the steel ball distribution roller (18) is provided with inlet and outlet grooves (19) arranged in a horizontal array. Multiple inlet and outlet grooves (19) are arranged horizontally.

5. A defective product separation device for high-chromium steel ball production according to claim 4, characterized in that: An upper baffle (8) is fixed between the two upper baffles (3) at the upper end of the rear end of the steel ball distribution roller (18), and the front end face of the upper baffle (8) is attached to the outer surface of the steel ball distribution roller (18).

6. The defective product separation device for high-chromium steel ball production according to claim 1, characterized in that: A second drive motor (20) is installed on one side of the upper baffle (3). A rotating shaft (21) is installed between the two upper baffles (3) along the output shaft end of the second drive motor (20). A rotating plate (22) is fixed outside the rotating shaft (21) along the area where the first conveying groove (10) is located. The lower end of the rotating plate (22) extends obliquely to the front end of the steel ball dropping groove (11).

7. A defective product separation device for high-chromium steel ball production according to claim 2, characterized in that: The upper baffle (3) and the lower baffle (12) also include a second inclined plate (6), which is integrally connected to the front end of the longitudinal plate (5). The upper end of the upper table (2) along the two second inclined plates (6) and the upper end of the lower table (13) along the two second inclined plates (6) form a feeding area. The upper baffle (3) also includes a first inclined plate (4), which is integrally connected to the rear end of the longitudinal plate (5). The upper end of the upper table (2) along the two second inclined plates (6) forms a feeding area. The front and rear ends of the lower end of the workbench (1) are welded and fixed with support plates (16).

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