Automatic metal sand screening and weighing device

Abstract

The utility model relates to the technical field of spinning component assembling equipment, in particular to an automatic metal sand screening and weighing device which comprises a rack, a feeding hopper, a vibrating screen and a discharging hopper, the feeding hopper, the vibrating screen and the discharging hopper are arranged on the rack, the vibrating screen is arranged below the feeding hopper, and a conveying frame is arranged on the rack below a discharging hopper. Conveying rollers are arranged at the two ends of the conveying frame, chain plates are wound around the conveying rollers, weighing cups are arranged on the chain plates, a mounting plate is arranged on the portion, below the upper-layer chain plate, of the conveying frame, the mounting plate is located under the second discharging pipe, an electronic scale is arranged on the mounting plate, and the electronic scale makes contact with the chain plates. According to the spinning assembly, metal sand is screened, impurities in the metal sand are removed, and the purity of the metal sand is improved, so that the performance of the spinning assembly is more stable and reliable; automatic weighing is realized, the labor intensity is greatly reduced, and the efficiency is high; the weighing cups on the chain plate can be taken down and placed on the placing table, automatic operation is completely achieved, and efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of spinning component assembly equipment, and in particular to an automatic metal sand screening and weighing device. Background Technology

[0002] In the process of chemical fiber spinning, when assembling the spinning components, a certain weight of metal sand needs to be weighed and placed in the component cup, which requires sieving and weighing the metal sand.

[0003] Currently, the screening and weighing of metal sand in the industry are all done manually. When the demand is large, the labor intensity is high and the operation efficiency is low.

[0004] Therefore, there is an urgent need to design a device that can automatically screen and weigh sand. Utility Model Content

[0005] To address the aforementioned technical deficiencies, this invention provides an automatic metal sand screening and weighing device that can automatically screen and weigh metal sand, thereby improving processing efficiency.

[0006] This utility model discloses an automatic metal sand screening and weighing device, including a frame and a feeding hopper, a vibrating screen, and a discharging hopper mounted on the frame. The vibrating screen is located below the feeding hopper, and a first discharging pipe is provided at the lower end of the feeding hopper. A first control valve is provided on the first discharging pipe. The vibrating screen includes a base plate and a screen. Three upward-facing sidewalls are provided on the three sides of the base plate, and the three sides of the screen are connected to the sidewalls. The discharging hopper is connected to the end of the base plate without sidewalls, and a slag discharge hopper is connected to the end of the screen without sidewalls. The discharging hopper is located below the discharging hopper, and the discharging hopper is connected to the discharging hopper. A discharge hopper is provided at the lower end of the discharging hopper. The second feeding pipe is equipped with a second control valve. A power mechanism is installed on the side wall of the bottom plate, which drives the screen to vibrate. A conveyor frame is installed on the frame below the discharge hopper, with conveyor rollers at both ends. A chain plate is wound around the conveyor rollers. A conveyor motor is installed on the conveyor frame, which drives one of the conveyor rollers to rotate. A weighing cup is installed on the chain plate. During the chain plate conveying process, the weighing cup connects with the second feeding pipe. An mounting plate is installed on the conveyor frame below the upper chain plate, and the mounting plate is located directly below the second feeding pipe. An electronic scale is installed on the mounting plate, and the electronic scale is in contact with the chain plate.

[0007] To automatically remove the weighing cup from the chain after weighing, a placement platform is provided at one or both ends of the conveyor frame. A vertical plate is provided on one side of the placement platform, and a top plate is provided on top of the vertical plate. Two through slots are spaced apart on the top plate, with the length direction of the through slots perpendicular to the direction of chain movement. A sliding rod is fixed within each through slot, and a slider is slidably connected to the sliding rod. A rack is installed on the top of each slider, with the length direction of the rack aligned with the length direction of the sliding rod. A dual-axis motor is installed on the top plate between the through slots, with the output end of the dual-axis motor extending above the rack. Gears are provided at the output ends of both dual-axis motors, and these gears mesh with the racks. A movable box is fixedly connected to the bottom of the two sliders. A groove is formed inside the movable box, and a lead screw is rotatably installed inside the groove. A servo motor is installed at one end of the movable box, and the servo motor is connected to the lead screw. A sleeve block is installed inside the groove, and the sleeve block is slidably connected to the lead screw. A wall plate is fixed on the sleeve block, and an electric telescopic rod is installed at the end of the wall plate. The end of the electric telescopic rod is fixed to an arc-shaped gripping cover. An arc-shaped electromagnet is installed inside the arc-shaped gripping cover, which faces the weighing cup. An iron ring is fixed to the outside of the weighing cup, and the iron ring can be attracted by the arc-shaped electromagnet.

[0008] Placement platforms are set at both ends of the conveyor frame. A vertical plate is set on the top plate at one end of the slag discharge hopper. The slag discharge hopper is fixed on the vertical plate and is located below the slag discharge hopper and connected to the slag discharge hopper.

[0009] The automatic sand screening and weighing device for metal sand obtained by this invention has the following beneficial effects:

[0010] By combining the feeding hopper, the unloading hopper, the discharge hopper and the vibrating screen, the metal sand is screened to remove impurities and improve its purity, so as to make the performance of the spinning components more stable and reliable.

[0011] Automatic weighing is achieved through electronic scales, chain plates, and weighing cups, which greatly reduces labor intensity and increases efficiency.

[0012] Using a dual-axis motor, a servo motor, an arc-shaped gripping cover, and an arc-shaped electromagnet, the weighing cup on the chain plate can be removed and placed on the placement table, achieving fully automated operation and improving efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a side view of the structure of this utility model;

[0015] Figure 3 for Figure 2 An enlarged view of point A in the diagram;

[0016] Figure 4 This is a schematic diagram of the structure of the placement platform of this utility model. Figure 1 ;

[0017] Figure 5 This is a schematic diagram of the structure of the placement platform of this utility model. Figure 2 ;

[0018] Figure 6 This is a cross-sectional view of the conveyor frame of this utility model. Detailed Implementation

[0019] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0020] Example 1:

[0021] like Figures 1-6 As shown, this utility model discloses an automatic metal sand screening and weighing device, including a frame 1 and a feeding hopper 2, a vibrating screen 3, and a discharging hopper 7 mounted on the frame 1. The vibrating screen 3 is located below the feeding hopper 2. A first discharging pipe 5 is provided at the lower end of the feeding hopper 2, and a first control valve 6 is provided on the first discharging pipe 5. The vibrating screen 3 includes a base plate 33 and a screen 32. Three upward-facing sidewalls are provided on the three sides of the base plate 33, and the three sides of the screen 32 are connected to the sidewalls. The discharging hopper 7 is connected to the end of the base plate 33 without sidewalls, and a slag discharge hopper 8 is connected to the end of the screen 32 without sidewalls. The discharge hopper 4 is located below the discharging hopper 7, and the discharging hopper 7 is connected to the discharge hopper 4. A second discharging pipe 9 is provided at the lower end of the discharge hopper 4. A second control valve 10 is installed on the second discharge pipe 9. A power mechanism is installed on the side wall of the bottom plate 33, which drives the screen 32 to vibrate. A conveyor frame 11 is installed on the frame 1 below the discharge hopper 4. Conveyor rollers 34 are installed at both ends of the conveyor frame 11. A chain plate 35 is wound around the conveyor roller 34. A conveyor motor is installed on the conveyor frame 11, which drives one of the conveyor rollers 34 to rotate. A weighing cup 12 is installed on the chain plate 35. During the conveying process of the chain plate 35, the weighing cup 12 connects with the second discharge pipe 9. An installation plate 36 is installed on the conveyor frame 11 below the upper chain plate 35, and the installation plate 36 is located directly below the second discharge pipe 9. An electronic scale 37 is installed on the installation plate 36, and the electronic scale 37 is in contact with the chain plate 35.

[0022] The frame 1 serves as the carrier frame for mounting various components, and its specific structure is not limited. Components such as the feeding hopper 2, vibrating screen 3, and discharge hopper 4 can be fixed to a single frame 1, or they can be supported by separate frames 1. The feeding hopper 2 is mounted on the frame 1, with a first discharge pipe 5 and a first control valve 6 at its lower end. Metal sand can be placed in the feeding hopper 2, and the opening and closing of the first control valve 6 is controlled according to actual needs to control the metal sand's entry into the vibrating screen 3. The vibrating screen 3 on the frame 1 has a known existing structure, with a base plate 33 underneath. A power mechanism drives the screen 32 to vibrate. In actual operation, the vibrating screen 3 is inclined on the frame 1, with the discharge hopper 7 at its lowest point. After the metal sand falls from the feeding hopper 2 onto the screen 32 of the vibrating screen 3, the screen 32 vibrates due to the power mechanism, thus completing the screening of the metal sand. The mesh size of the vibrating screen 3 is selected according to actual needs and is not limited here. The screened metal sand falls through screen 32 and enters the space between the bottom plate 33 and screen 32. Because the bottom plate 33 is inclined, the metal sand slides down from the feed hopper 7 and falls into the discharge hopper 4. Impurities remain on screen 32, which is also inclined; during vibration, the impurities are discharged from the slag discharge hopper 8. This process achieves automatic screening of metal sand, with high efficiency and controllable output.

[0023] A conveyor frame 11 is installed on the frame 1 below the discharge hopper 4. Conveyor rollers 34 are installed at both ends of the conveyor frame 11, and chain plates 35 are wound around the conveyor rollers 34, similar to a conveyor belt. A controller 19 is also required, which controls the power mechanism, the first control valve 6, the second control valve 10, and the conveyor motor. The weighing cup 12 is placed on the chain plate 35, and the conveyor motor drives the chain plate 35 to move, causing the weighing cup 12 to move directly below the second discharge pipe 9 of the discharge hopper 4. The position of the weighing cup 12 on the chain plate 35 must correspond to the position of the second discharge pipe 9, and the chain plate 35 can move the weighing cup 12 directly below the second discharge pipe 9 during its movement. Since the chain plate 35 is in contact with the electronic scale 37 below it, when the weighing cup 12 moves directly below the second discharge pipe 9, the weighing cup 12 is positioned on the electronic scale 37. Although the chain plate 35 is also pressing on the electronic scale 37, a tare operation can be performed when weighing is required. That is, before the metal sand is discharged from the second discharge pipe 9, the electronic scale 37 is zeroed. Then the second control valve 10 opens, and the metal sand in the discharge hopper 4 enters the weighing cup 12 through the second discharge pipe 9. At this time, the electronic scale 37 measures the mass of the metal sand in the weighing cup 12. When the weight of the metal sand in the weighing cup 12 gradually reaches the required value, the second control valve 10 gradually closes, eventually allowing the weight entering the weighing cup 12 to reach the required standard. The controller 19 is also electrically connected to the electronic scale. The weight signal of the electronic scale 37 is transmitted to the controller 19, which controls the second control valve 10. The specific control method is based on existing known technology.

[0024] Once the weighing cup 12 on the chain plate 35 is filled with metal sand, it is manually removed, and an empty weighing cup 12 is placed in its place. Although the above solution can achieve automatic sand screening and weighing, manual assistance is still required.

[0025] To automatically remove the weighing cup 12 from the chain plate 35 after weighing, placement platforms 13 are provided at both ends of the conveyor frame 11. A vertical plate 14 is provided on one side of each placement platform 13, and a top plate 15 is provided on the top of the vertical plate 14. Two through slots 20 are spaced apart on the top plate 15, with the length direction of each through slot 20 perpendicular to the movement direction of the chain plate 35. A sliding rod 21 is fixed within each through slot 20, and a slider 22 is slidably connected to each sliding rod 21. A rack 18 is installed on the top of each slider 22, with the length direction of the rack 18 aligned with that of the sliding rod 21. A dual-axis motor 16 is provided on the top plate 15 between the through slots 20, with the output end of the dual-axis motor 16 extending above the rack 18. Gears 17 are provided at the output ends of both dual-axis motors 16, meshing with the racks 18. A movable box 23 is fixedly connected to the bottom of the two sliders 22. A groove 24 is formed inside the movable box 23. A lead screw 25 is rotatably installed inside the groove 24. A servo motor 26 is installed at one end of the movable box 23. The servo motor 26 is connected to the lead screw 25. A sleeve block 27 is installed inside the groove 24. The sleeve block 27 is slidably connected inside the groove 24 and is connected to the lead screw 25 by a thread. A wall plate 28 is fixed on the sleeve block 27. An electric telescopic rod 29 is installed at the end of the wall plate 28. The end of the electric telescopic rod 29 is fixed to an arc-shaped gripping cover 30. An arc-shaped electromagnet 31 is installed inside the arc-shaped gripping cover 30. The arc-shaped gripping cover 30 faces the weighing cup 12. An iron ring is fixed to the outside of the weighing cup 12. The iron ring can be attracted by the arc-shaped electromagnet 31.

[0026] Placement platforms 13 are set at both ends of the conveyor frame 11. One placement platform 13 can hold an empty weighing cup 12, while the other placement platform 13 is used to hold a weighing cup 12 filled with metal sand after weighing. In actual use, the rack 18 and slider 22 can be moved on the slide rod 21 in the through groove 20 by the dual-axis motor 16. At the same time, the servo motor 26 at the end of the moving box 23 rotates, and the lead screw 25 drives the sleeve block 27 to move, so as to adjust the position of the moving box 23 and the arc-shaped gripping cover 30. The electric telescopic rod 29 can control the height position of the arc-shaped gripping cover 30. The controller 19 is connected to the dual-axis motor 16, the servo motor 26, the electric telescopic rod 29 and the arc-shaped electromagnet 31 to control them.

[0027] In the specific process, the dual-axis motor 16 and the servo electric drive work together to adjust the position of the arc-shaped gripping cover 30. The electric telescopic rod 29 drives the arc-shaped gripping cover 30 to descend to the side of the empty weighing cup 12 to be gripped. At this time, the arc-shaped electromagnet 31 inside the arc-shaped gripping cover 30 is in contact with the iron ring on the weighing cup 12. The controller 19 controls the arc-shaped electromagnet 31 to start, generating magnetism, which attracts the weighing cup 12 and the iron ring onto the arc-shaped gripping cover 30. The electric telescopic rod 29 retracts, lifting the weighing cup 12. The dual-axis motor 16 and the servo motor 26 control the weighing cup 12 to move it to the corresponding position above the chain plate 35. Then the electric telescopic rod 29 descends to place the weighing cup 12 on the chain plate 35. The arc-shaped electromagnet 31 is de-energized, and the magnetism disappears, thus completing the transport of the empty weighing cup 12 from the placement platform 13 to the chain plate 35. After weighing is complete, the weighing cup 12 and the metal sand inside can be moved to the other side of the chain plate 35. It is then removed from the chain plate 35 by the arc-shaped gripping cover 30 on another placement platform 13 and placed on the placement platform 13. The specific placement process is the reverse of the process described above of moving the empty weighing cup 12 from the placement platform 13 to the chain plate 35.

[0028] The above process automatically transfers the empty weighing cup 12 on the placement platform 13 to the chain plate 35, and then transfers the weighed weighing cup 12 on the chain plate 35 to the placement platform 13, realizing automated operation, greatly improving weighing efficiency, reducing manual input, and ensuring safety and reliability.

[0029] Placement platforms 13 are provided at both ends of the conveyor frame 11. A vertical plate is provided on the top plate 15 at one end of the slag discharge hopper 8. The slag discharge hopper is fixed on the vertical plate. The slag discharge hopper is located below the slag discharge hopper 8 and is connected to the slag discharge hopper 8.

[0030] Since the direction of the slag discharge hopper 8 is the same as that of the screen 32, it will cause the slag discharge to be unsmooth. Therefore, in order to improve the slag discharge and make it smoother, a debris discharge hopper is installed below the slag discharge hopper 8. The debris discharge hopper is tilted to the side to allow impurities to be discharged outward from the debris discharge hopper.

[0031] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0032] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the interaction relationship between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0033] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simplification, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. An automatic metal sand screening and weighing device, comprising a frame and a feeding hopper, a vibrating screen, and a discharging hopper mounted on the frame, characterized in that: The vibrating screen is located below the feeding hopper. A first discharge pipe is installed at the lower end of the feeding hopper, and a first control valve is installed on the first discharge pipe. The vibrating screen includes a base plate and a screen. Three upward-facing sidewalls are provided on the three sides of the base plate, and the three sides of the screen are connected to the sidewalls. A feeding hopper is connected to the end of the base plate without sidewalls, and a slag discharge hopper is connected to the end of the screen without sidewalls. The discharge hopper is located below the feeding hopper and is connected to the discharge hopper. A second discharge pipe is installed at the lower end of the discharge hopper, and a second control valve is installed on the second discharge pipe. A power mechanism is installed on the side wall of the base plate, which drives the screen to vibrate. A conveyor frame is installed on the frame below the discharge hopper, and conveyor rollers are installed at both ends of the conveyor frame. A chain plate is wound around the conveyor rollers. A conveyor motor is installed on the conveyor frame, and the conveyor motor drives one of the conveyor rollers to rotate. A weighing cup is installed on the chain plate. During the chain plate conveying process, the weighing cup connects with the second discharge pipe. An installation plate is installed on the conveyor frame below the upper chain plate, and the installation plate is located directly below the second discharge pipe. An electronic scale is installed on the installation plate, and the electronic scale is in contact with the chain plate.

2. The automatic metal sand screening and weighing device according to claim 1, characterized in that: A placement platform is provided at one or both ends of the conveyor frame. A vertical plate is provided on one side of the placement platform, and a top plate is provided on the top plate. Two through slots are spaced apart on the top plate. The length direction of the through slots is perpendicular to the movement direction of the chain plate. A sliding rod is fixed in the through slot, and a slider is slidably connected to the sliding rod. A rack is installed on the top of the two sliders, and the length direction of the rack is consistent with the length direction of the sliding rod. A dual-axis motor is provided on the top plate between the through slots. The output end of the dual-axis motor extends above the rack. Gears are provided on the output end of the dual-axis motor, and the gears mesh with the racks. The bottom of the two sliders is fixed. A movable box is connected, with a sliding groove formed inside the movable box. A lead screw is rotatably mounted inside the sliding groove. A servo motor is mounted at one end of the movable box, and the servo motor is drivenly connected to the lead screw. A sleeve block is mounted inside the sliding groove, and the sleeve block is threadedly connected to the lead screw. A wall plate is fixed on the sleeve block, and an electric telescopic rod is mounted at the end of the wall plate. The end of the electric telescopic rod is fixed to an arc-shaped gripping cover, and an arc-shaped electromagnet is mounted inside the arc-shaped gripping cover, which faces the weighing cup. An iron ring is fixed to the outside of the weighing cup, and the iron ring can be attracted by the arc-shaped electromagnet.

3. The automatic metal sand screening and weighing device according to claim 1, characterized in that: Placement platforms are set at both ends of the conveyor frame. A vertical plate is set on the top plate at one end of the slag discharge hopper. The slag discharge hopper is fixed on the vertical plate and is located below the slag discharge hopper and connected to the slag discharge hopper.

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