A high-precision batching scale

Abstract

This utility model relates to the field of batching scale technology and discloses a high-precision batching scale, including a conveying mechanism, and further including: a weighing mechanism, a discharging mechanism and a lifting mechanism. The top end of the conveying mechanism is fixedly connected to the bottom end of the weighing mechanism, the side of the conveying mechanism is fixedly connected to the side of the discharging mechanism, and the bottom end of the conveying mechanism is movably connected to the top end of the lifting mechanism by a pin. The conveying mechanism includes a first mounting frame, a first transmission roller, a steering roller, a second mounting frame, a second transmission roller, a drive motor and a conveyor belt. The discharging mechanism includes a discharge hopper, a mounting column, a mounting platform, a pressure spring, a connecting block and a scraper. In this utility model, the raw materials weighed by the weighing mechanism fall onto the conveyor belt for conveying, and finally fall into the discharge hopper and into the sintering device inlet from the bottom. The pressure spring pushes the connecting block upward so that the top of the scraper initially sticks to the side of the conveyor belt, scraping off the raw materials adhering to the surface of the conveyor belt, which helps to ensure accurate material usage.

Description

Technical Field

[0001] This utility model relates to the field of batching scale technology, and more specifically to a high-precision batching scale. Background Technology

[0002] Iron ore sintering is a crucial step in steelmaking. Its main purpose is to mix powdered iron ore with flux and fuel, then solidify it into lumpy sinter at high temperatures. This improves the raw material properties for blast furnace smelting, increasing ironmaking efficiency and pig iron quality. Ukrainian concentrate is a commonly used ingredient in iron ore sintering. A typical Ukrainian concentrate blend includes 17% Ukrainian concentrate, 10% high-purity rebar, 22% Mackenzie concentrate, 13.9% Australian ore (PB), 20% South African concentrate, 8.9% quicklime, 3.4% magnesite powder, and 4.8% coking coal powder. To ensure accurate proportions, a batching scale is used to weigh the various raw materials. This scale is primarily used for precise proportioning of multiple materials. By setting pre-defined mass ratios, it accurately measures the weight of different materials, typically within milligrams, ensuring precise batching. It is widely used in food, chemical, pharmaceutical, and environmental protection industries.

[0003] Insufficiency of existing technology: In order to ensure the continuous operation of the sintering furnace, the batching scale is often used in conjunction with the conveyor belt to facilitate the transport of raw materials measured by the batching scale to the inside of the sintering furnace. However, during use, the raw materials are prone to sticking to the conveyor belt, affecting the accuracy of the use of various raw materials; and most of the existing conveyor belts are fixed structures, which cannot transport raw materials to different heights, affecting the flexibility of the equipment. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a high-precision batching scale to solve the problems existing in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-precision batching scale, including a conveying mechanism, and further including a weighing mechanism, a discharging mechanism, and a lifting mechanism. The top end of the conveying mechanism is fixedly connected to the bottom end of the weighing mechanism, the side of the conveying mechanism is fixedly connected to the side of the discharging mechanism, and the bottom end of the conveying mechanism is movably connected to the top end of the lifting mechanism via a pin. The conveying mechanism includes a first mounting frame, a first transmission roller is movably sleeved on the inner side wall of the first mounting frame, a guide roller is movably sleeved on the inner side wall of the first mounting frame, a second mounting frame is movably sleeved on the side of the guide roller, and a second transmission roller is movably sleeved on the side of the second mounting frame. A drive motor is fixedly connected to the side of the first mounting frame. The output shaft of the drive motor is fixedly connected to the side of the first transmission roller. A conveyor belt is drivenly connected to the side of the first transmission roller. The bottom end of the second mounting frame is movably connected to the top end of the lifting mechanism via a pin. The discharge mechanism includes a discharge hopper. The side of the discharge hopper is fixedly connected to the side of the second mounting frame. A mounting column is fixedly connected to the inner wall of the bottom end of the discharge hopper. A mounting platform is provided on the side of the mounting column. A pressure spring is fixedly connected to the bottom end of the mounting platform. A connecting block is fixedly connected to the top end of the pressure spring. A scraper is fixedly connected to the side of the connecting block. The top end of the scraper is movably connected to the side of the conveyor belt.

[0006] Furthermore, a limiting hole is provided at the top of the connecting block, and the side of the limiting hole is movably connected to the side of the mounting post.

[0007] Furthermore, the weighing mechanism includes a guide rail, the bottom end of which is fixedly connected to the top end of the first mounting bracket. A pressure sensor is fixedly connected to the inner wall of the bottom end of the guide rail, and a pressure sensor is fixedly connected to the top end of the pressure sensor. A mounting block is fixedly connected to the top end of the pressure sensor, and a hopper is fixedly connected to the side of the mounting block. The side of the mounting block is movably connected to the inner wall of the side of the guide rail.

[0008] Furthermore, a first discharge pipe is fixedly connected to the bottom end of the hopper, and a second discharge pipe is fixedly connected to the bottom end of the hopper.

[0009] Furthermore, the lifting mechanism includes a base plate, a column fixedly connected to the top of the base plate, a threaded shaft movably sleeved on the inner wall of the bottom end of the column, a telescopic column threadedly connected to the side of the threaded shaft, the top of the telescopic column being movably connected to the bottom end of the second mounting frame via a pin, a second universal wheel fixedly connected to the bottom end of the base plate, and a first universal wheel fixedly connected to the bottom end of the first mounting frame.

[0010] Furthermore, a roller is movably sleeved on the inner side wall of the first mounting bracket at the position corresponding to the steering roller, and the bottom end of the roller is connected to the top end of the conveyor belt.

[0011] Furthermore, a drive shaft is movably sleeved on the side of the column, a worm gear is movably sleeved on the side of the drive shaft, a worm wheel is fixedly sleeved on the side of the threaded shaft, the side of the worm wheel meshes with the side of the worm gear, a servo motor is fixedly connected to the side of the column, and the output shaft of the servo motor is fixedly connected to the side of the drive shaft.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. In this utility model, the raw materials weighed by the weighing mechanism fall onto the conveyor belt for transportation, and finally fall into the discharge hopper and into the sintering device inlet from the bottom. The pressure spring pushes the connecting block upward so that the top of the scraper is always in close contact with the side of the conveyor belt, scraping off the raw materials attached to the surface of the conveyor belt, which helps to ensure accurate material usage.

[0014] 2. This utility model starts the servo motor to drive the transmission shaft to rotate according to the usage requirements. The worm and worm wheel mesh with each other to drive the threaded shaft to rotate. The thread drives the telescopic column to move up and down along the inner wall of the base plate, thereby causing the second mounting frame to rotate along the steering roller. The height of the discharge mechanism is adjusted so that the discharge port of the discharge hopper is aligned with the inlet of the sintering device, which helps to improve the flexibility of the equipment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 For the present utility model Figure 1 Explosion diagram of the structure at point A;

[0017] Figure 3 This is a cross-sectional structural diagram of the conveying mechanism of this utility model;

[0018] Figure 4 This is a schematic diagram of the weighing mechanism of this utility model;

[0019] Figure 5 This is a schematic diagram of the lifting mechanism structure of this utility model;

[0020] Figure 6 This is a schematic diagram of the internal structure of the column of this utility model;

[0021] Figure 7 This is a schematic cross-sectional view of the discharge mechanism of this utility model;

[0022] Figure 8 For the present utility model Figure 7 Schematic diagram of the structure at point B.

[0023] The attached figures are labeled as follows: 1. Conveying mechanism; 101. First mounting frame; 102. Conveyor belt; 103. Second mounting frame; 104. Drive motor; 105. First caster wheel; 106. Roller; 107. First drive roller; 108. Steering roller; 109. Second drive roller; 2. Weighing mechanism; 201. Loading hopper; 202. First discharge pipe; 203. Second discharge pipe; 204. Guide rail; 205. Mounting block; 206. 1. Pressure sensor; 3. Discharge mechanism; 301. Discharge hopper; 302. Scraper; 303. Mounting column; 304. Mounting platform; 305. Connecting block; 306. Pressure spring; 307. Limiting hole; 4. Lifting mechanism; 401. Base plate; 402. Column; 403. Drive shaft; 404. Telescopic column; 405. Second universal wheel; 406. Servo motor; 407. Threaded shaft; 408. Worm gear; 409. Worm wheel. Detailed Implementation

[0024] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The high-precision batching scale involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] Reference Figures 1 to 8This utility model provides a high-precision batching scale, including a conveying mechanism 1, a weighing mechanism 2, a discharging mechanism 3, and a lifting mechanism 4. The top end of the conveying mechanism 1 is fixedly connected to the bottom end of the weighing mechanism 2, the side of the conveying mechanism 1 is fixedly connected to the side of the discharging mechanism 3, and the bottom end of the conveying mechanism 1 is movably connected to the top end of the lifting mechanism 4 via a pin. The conveying mechanism 1 includes a first mounting frame 101, a first transmission roller 107 movably sleeved on the inner side wall of the first mounting frame 101, and a guide roller 108 movably sleeved on the inner side wall of the first mounting frame 101. A second mounting bracket 103 is movably sleeved on the side of the first mounting bracket 101. A second transmission roller 109 is movably sleeved on the side of the second mounting bracket 103. A drive motor 104 is fixedly connected to the side of the first mounting bracket 101. The output shaft of the drive motor 104 is fixedly connected to the side of the first transmission roller 107. A transmission belt 102 is drivenly connected to the side of the first transmission roller 107. The bottom end of the second mounting bracket 103 is movably connected to the top end of the lifting mechanism 4 via a pin. The discharge mechanism 3 includes a discharge hopper 301. The side of the discharge hopper 301 is fixedly connected to the side of the second mounting bracket 103. A mounting column 303 is fixedly connected to the inner wall of the bottom end of the first mounting frame 102. A mounting platform 304 is provided on the side of the mounting column 303. A pressure spring 306 is fixedly connected to the bottom end of the mounting platform 304. A connecting block 305 is fixedly connected to the top end of the pressure spring 306. A scraper 302 is fixedly connected to the side of the connecting block 305. The top end of the scraper 302 is movably connected to the side of the conveyor belt 102. The first mounting frame 101 is placed horizontally and located at the lower position. Multiple weighing mechanisms 2 are provided at the top end of the first mounting frame 101 for placing different raw materials. The raw materials are placed into the corresponding weighing mechanisms 2 in sequence. According to the usage requirements, the height of the second mounting frame 103 is adjusted by the lifting mechanism 4 so that the discharge mechanism 3 is located at the inlet of the sintering device. The drive motor 104 drives the first transmission roller 107 to rotate, thereby driving the conveyor belt 102 to move. The raw material weighed by the weighing mechanism 2 falls onto the conveyor belt 102 for conveying and finally falls into the discharge hopper 301 and falls from the bottom into the inlet of the sintering device. The pressure spring 306 pushes the connecting block 305 upward so that the top of the scraper 302 is always in close contact with the side of the conveyor belt 102, scraping off the raw material attached to the surface of the conveyor belt 102 to ensure accurate material feeding.

[0026] The connecting block 305 has a limiting hole 307 at its top. The side of the limiting hole 307 is movably connected to the side of the mounting post 303. When the pressure spring 306 contracts, the mounting post 303 slides along the limiting hole 307, causing the scraper 302 to move in a straight line.

[0027] The weighing mechanism 2 includes a guide rail 204, the bottom end of which is fixedly connected to the top end of the first mounting bracket 101. A pressure sensor 206 is fixedly connected to the inner wall of the bottom end of the guide rail 204. A pressure sensor 206 is fixedly connected to the top end of the pressure sensor 206. A mounting block 205 is fixedly connected to the top end of the pressure sensor 206. A hopper 201 is fixedly connected to the side of the mounting block 205. The side of the mounting block 205 is movably connected to the inner wall of the side of the guide rail 204. When raw materials are poured into the hopper 201, the pressure is transmitted to the pressure sensor 206 through the mounting block 205. The pressure sensor 206 determines the change of raw materials inside the hopper 201 by the pressure change.

[0028] The bottom end of the hopper 201 is fixedly connected to a first discharge pipe 202 and a second discharge pipe 203. Both the first discharge pipe 202 and the second discharge pipe 203 are equipped with electric valves on their sides. The diameter of the first discharge pipe 202 is larger than the diameter of the second discharge pipe 203. During initial discharge, the electric valve on the side of the first discharge pipe 202 is opened, and the raw material inside the hopper 201 falls quickly onto the conveyor belt 102 through the first discharge pipe 202. When the required raw material reaches the preset pressure value of the pressure sensor 206, the first discharge pipe 202 is closed, and the electric valve on the side of the second discharge pipe 203 is opened to slowly discharge the material, ensuring both the speed of material discharge and the accuracy of material usage.

[0029] The lifting mechanism 4 includes a base plate 401, a column 402 fixedly connected to the top of the base plate 401, a threaded shaft 407 movably sleeved on the inner wall of the bottom end of the column 402, a telescopic column 404 threadedly connected to the side of the threaded shaft 407, the top of the telescopic column 404 being movably connected to the bottom end of the second mounting frame 103 via a pin, a second universal wheel 405 fixedly connected to the bottom end of the base plate 401, and a first universal wheel 105 fixedly connected to the bottom end of the first mounting frame 101. The lifting mechanism 4 drives the threaded shaft 407 to rotate, which in turn drives the telescopic column 404 to move up and down along the inner wall of the base plate 401 via the thread, thereby causing the second mounting frame 103 to rotate along the steering roller 108 and adjusting the height of the discharge mechanism 3.

[0030] Among them, a roller 106 is movably sleeved on the inner side wall of the first mounting bracket 101 corresponding to the position of the steering roller 108. The bottom end of the roller 106 is connected to the top end of the conveyor belt 102. The roller 106 presses the conveyor belt 102 onto the steering roller 108 to ensure that the conveyor belt 102 is smoothly driven by the first drive roller 107 and the second drive roller 109.

[0031] The column 402 has a drive shaft 403 movably sleeved on its side, a worm gear 408 movably sleeved on its side, and a worm wheel 409 fixedly sleeved on its side. The side of the worm wheel 409 meshes with the side of the worm gear 408. A servo motor 406 is fixedly connected to the side of the column 402. The output shaft of the servo motor 406 is fixedly connected to the side of the drive shaft 403. The servo motor 406 drives the drive shaft 403 to rotate, and the worm gear 408 and the worm wheel 409 mesh with each other to drive the threaded shaft 407 to rotate.

[0032] The working principle of this utility model is as follows: The device is moved to a suitable position. According to usage requirements, the servo motor 406 is activated to drive the transmission shaft 403 to rotate. The worm gear 408 and worm wheel 409 mesh with each other, driving the threaded shaft 407 to rotate. The threaded shaft drives the telescopic column 404 to move up and down along the inner wall of the base plate 401, thereby causing the second mounting bracket 103 to rotate along the steering roller 108. The height of the discharge mechanism 3 is adjusted so that the discharge port of the discharge hopper 301 is aligned with the inlet of the sintering device. Raw materials are poured into the loading hopper 201. Pressure is transmitted to the pressure sensor 206 through the mounting block 205. The pressure sensor 206 determines the change in raw material inside the loading hopper 201 based on pressure changes. During initial discharge, the side electric control valve of the first discharge pipe 202 is opened, allowing the material inside the loading hopper 201 to flow freely. Raw materials fall rapidly onto the conveyor belt 102 through the first discharge pipe 202. When the required raw materials reach the preset pressure value of the pressure sensor 206, the first discharge pipe 202 is closed, and the side electric control valve of the second discharge pipe 203 is opened to slowly discharge the material until the required material value is reached and the second discharge pipe 203 is closed. The drive motor 104 is started to drive the first transmission roller 107 to rotate, thereby driving the conveyor belt 102 to move. The raw materials weighed by the weighing mechanism 2 fall onto the conveyor belt 102 for conveying, and finally fall into the discharge hopper 301 and fall from the bottom into the sintering device inlet. The pressure spring 306 pushes the connecting block 305 upward so that the top of the scraper 302 is always in close contact with the side of the conveyor belt 102, scraping off the raw materials attached to the surface of the conveyor belt 102 to ensure accurate material usage.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-precision batching scale, comprising a conveying mechanism (1), characterized in that, Also includes: The weighing mechanism (2), the discharging mechanism (3), and the lifting mechanism (4) are provided. The top end of the conveying mechanism (1) is fixedly connected to the bottom end of the weighing mechanism (2), the side of the conveying mechanism (1) is fixedly connected to the side of the discharging mechanism (3), and the bottom end of the conveying mechanism (1) is movably connected to the top end of the lifting mechanism (4) by a pin. The conveying mechanism (1) includes a first mounting frame (101), a first transmission roller (107) is movably sleeved on the inner side wall of the first mounting frame (101), a guide roller (108) is movably sleeved on the inner side wall of the first mounting frame (101), a second mounting frame (103) is movably sleeved on the side of the guide roller (108), a second transmission roller (109) is movably sleeved on the side of the second mounting frame (103), and a drive motor (104) is fixedly connected to the side of the first mounting frame (101). The drive motor (104) outputs... The output shaft is fixedly connected to the side of the first transmission roller (107), and the side of the first transmission roller (107) is connected to the transmission belt (102). The bottom end of the second mounting frame (103) is movably connected to the top end of the lifting mechanism (4) by a pin. The discharge mechanism (3) includes a discharge hopper (301). The side of the discharge hopper (301) is fixedly connected to the side of the second mounting frame (103). The bottom inner wall of the discharge hopper (301) is fixedly connected to a mounting column (303). The side of the mounting column (303) is provided with a mounting platform (304). The bottom end of the mounting platform (304) is fixedly connected to a pressure spring (306). The top end of the pressure spring (306) is fixedly connected to a connecting block (305). The side of the connecting block (305) is fixedly connected to a scraper (302). The top end of the scraper (302) is movably connected to the side of the transmission belt (102).

2. The high-precision batching scale according to claim 1, characterized in that: The top of the connecting block (305) has a limiting hole (307), and the side of the limiting hole (307) is movably connected to the side of the mounting post (303).

3. The high-precision batching scale according to claim 1, characterized in that: The weighing mechanism (2) includes a guide rail (204), the bottom end of which is fixedly connected to the top end of the first mounting bracket (101). A pressure sensor (206) is fixedly connected to the inner wall of the bottom end of the guide rail (204). A pressure sensor (206) is fixedly connected to the top end of the pressure sensor (206). A mounting block (205) is fixedly connected to the top end of the pressure sensor (206). A hopper (201) is fixedly connected to the side of the mounting block (205). The side of the mounting block (205) is movably connected to the inner wall of the side of the guide rail (204).

4. A high-precision batching scale according to claim 3, characterized in that: The bottom end of the hopper (201) is fixedly connected to a first discharge pipe (202), and the bottom end of the hopper (201) is fixedly connected to a second discharge pipe (203).

5. A high-precision batching scale according to claim 1, characterized in that: The lifting mechanism (4) includes a base plate (401), a column (402) is fixedly connected to the top of the base plate (401), a threaded shaft (407) is movably sleeved on the inner wall of the bottom end of the column (402), a telescopic column (404) is threadedly connected to the side of the threaded shaft (407), the top end of the telescopic column (404) is movably connected to the bottom end of the second mounting bracket (103) by a pin, a second universal wheel (405) is fixedly connected to the bottom end of the base plate (401), and a first universal wheel (105) is fixedly connected to the bottom end of the first mounting bracket (101).

6. A high-precision batching scale according to claim 1, characterized in that: A roller (106) is movably sleeved on the inner side wall of the first mounting bracket (101) at the position corresponding to the steering roller (108), and the bottom end of the roller (106) is connected to the top end of the conveyor belt (102) for transmission.

7. A high-precision batching scale according to claim 5, characterized in that: A drive shaft (403) is movably sleeved on the side of the column (402), a worm gear (408) is movably sleeved on the side of the drive shaft (403), a worm wheel (409) is fixedly sleeved on the side of the threaded shaft (407), the side of the worm wheel (409) meshes with the side of the worm gear (408), a servo motor (406) is fixedly connected to the side of the column (402), and the output shaft of the servo motor (406) is fixedly connected to the side of the drive shaft (403).

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