Weightlessness scale for accurately metering feeding

Abstract

The utility model relates to the technical field of weightlessness scales, and discloses a weightlessness scale for accurately metering feeding, which comprises a fixed frame and a charging barrel, the charging barrel is fixedly mounted in the fixed frame, a discharge port is fixedly mounted at the bottom of the charging barrel, and a feeding barrel is fixedly mounted at the top of the charging barrel. Through operation of a first motor, a second belt wheel and a first belt wheel synchronously rotate, further rotation of an auger can disturb materials in a feeding barrel, rotation of a material distributing roller can feed the materials into a material barrel in batches, and finally rotation of a first bevel gear can drive a stirring rod to rotate, so that the materials in the feeding barrel are stirred, and the stirring effect is improved. Compared with a traditional device, by means of rotation of the material distributing roller and the packing auger, the device can effectively prevent the discharging opening from being blocked, it is ensured that materials evenly enter the charging barrel, the problems of blocking and material adhesion are effectively solved, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of loss-in-weight weighing technology, and more specifically, to a loss-in-weight weighing system for accurate metering and feeding. Background Technology

[0002] A loss-in-weight weigher is a device that achieves high-precision continuous quantitative feeding through static weighing. It is mainly used for reliable, accurate and stable feeding of dry bulk materials such as powders, granules and flakes. This device plays an important role in industrial production, reducing material waste and improving the consistency of mixtures.

[0003] Current loss-in-weight scales, such as the Chinese patent application CN202223560059.5 "A Loss-in-Weight Scale for Accurate Metering and Feeding", involve adding moist material to the metering hopper, which causes both the upper and lower filter frames to be covered with moist material, increasing the drying area of ​​the moist material. The two boxes alternately extract hot air from the heating chamber and then squeeze it into multiple jet nozzles to continuously dry and heat the moist material stored on the upper and lower filter frames.

[0004] However, in actual use, some damp materials, due to their high moisture content, are prone to forming hydrogen bonds or other intermolecular forces between particles, resulting in strong stickiness. This stickiness makes the material particles more likely to adsorb and stick together, forming large clumps. This makes it easy for the material to get clogged at the feed pipe when it enters the hopper. Therefore, it needs to be improved and optimized. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, this utility model provides a loss-in-weight scale for accurate metering and feeding, which has the advantage of uniform feeding.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a loss-in-weight scale for accurate feeding, comprising a fixed frame and a feed cylinder, wherein the feed cylinder is fixedly installed inside the fixed frame, a discharge port is fixedly installed at the bottom of the feed cylinder, and a feed cylinder is fixedly installed at the top of the feed cylinder;

[0007] A guide plate is fixedly installed at the bottom of the feeding cylinder. A distributing roller is rotatably installed inside the feeding cylinder. A storage groove is opened on the outer wall of the distributing roller. An auger is rotatably installed inside the feeding cylinder and is located above the distributing roller. A vertical plate is fixedly installed at the top of the feeding cylinder. Two sets of second pulleys are rotatably installed on the outer wall of the vertical plate. A first pulley is rotatably installed on the outer wall of the vertical plate. One end of the first pulley is fixedly connected to the distributing roller. One set of second pulleys is located above the first pulley and is fixedly connected to the auger. The first pulley and the upper second pulley are connected by a first transmission belt. The other set of second pulleys is located to the right of the first pulley and is fixedly connected to a first bevel gear. The first pulley and the right second pulley are connected by a second transmission belt.

[0008] As a preferred embodiment of this utility model, a valve is provided inside the discharge port;

[0009] A fixed shell is fixedly installed on the outer wall of the discharge port. A vibration groove is opened on the right side wall of the discharge port. There are two sets of telescopic grooves inside the fixed shell. A vibrating head is movably installed inside the telescopic groove. The vibrating head and the inner wall of the telescopic groove are elastically connected by a spring. One end of the two sets of vibrating heads extends through to the outside of the telescopic groove and is fixedly connected to the transmission plate.

[0010] As a preferred embodiment of this utility model, a first motor is fixedly installed on the rear side of the upright plate, and the output shaft of the first motor is fixedly connected to one of the sets of second pulleys.

[0011] As a preferred embodiment of this utility model, a stirring rod is rotatably installed inside the material cylinder, and a second bevel gear is rotatably installed on the top of the material cylinder. The second bevel gear and the stirring rod are fixedly connected, and the second bevel gear and the first bevel gear are drively connected.

[0012] As a preferred embodiment of this utility model, scrapers are fixedly installed on both the left and right sides of the bottom of the stirring rod, and the scrapers and the conical surfaces of the material cylinder are in contact with each other. The scrapers are used to scrape off the materials that stick together after drying.

[0013] As a preferred embodiment of this utility model, the guide plate is inclined, and the outer wall of the material cylinder is fixedly provided with an air jet hole, the position of which corresponds to that of the guide plate.

[0014] As a preferred embodiment of this utility model, a transmission rod is rotatably installed inside the fixed shell, the transmission rod and the transmission plate abut against each other, and a second motor is fixedly installed on the outer wall of the fixed shell, the output shaft of the second motor and the transmission rod are fixedly connected.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model utilizes the operation of a first motor to cause the second pulley and the first pulley to rotate synchronously. The rotation of the auger further agitates the material inside the feed cylinder, while the rotation of the distribution roller feeds the material into the cylinder in batches. Finally, the rotation of the first bevel gear drives the stirring rod to rotate, performing a mixing operation. Compared with traditional devices, this device can effectively prevent the discharge port from clogging through the rotation of the distribution roller and the auger, ensuring that the material enters the cylinder evenly, effectively avoiding clogging and material adhesion problems, and improving work efficiency.

[0017] 2. This utility model uses a second motor to drive the rotation of the transmission rod. Through the eccentric design of the transmission rod, the rotation of the transmission rod will pull the vibrating head into the interior of the telescopic groove via the transmission plate. Finally, the vibrating head will return to its original position and impact the vibrating groove. Compared with traditional devices, this device can loosen the material blocked at the discharge port through the high-frequency vibration of the vibrating head during the discharge operation, making the discharge operation more efficient and reducing the workload. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the stirring rod structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the material distribution roller structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the second transmission belt structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the valve structure of this utility model;

[0023] Figure 6 This is a schematic diagram of the transmission plate structure of this utility model.

[0024] In the diagram: 1. Fixed frame; 2. Material cylinder; 3. Discharge port; 4. Feed cylinder; 5. Guide plate; 6. Distributing roller; 7. Storage trough; 8. Screwdriver; 9. First pulley; 10. Second pulley; 11. First transmission belt; 12. Vertical plate; 13. Second transmission belt; 14. First motor; 15. First bevel gear; 16. Second bevel gear; 17. Stirring rod; 18. Scraper; 19. Air jet; 20. Valve; 21. Vibration trough; 22. Fixed shell; 23. Second motor; 24. Transmission rod; 25. Telescopic groove; 26. Vibrating head; 27. Spring; 28. Transmission plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figures 1 to 6 As shown, this utility model provides a loss-in-weight scale for accurate feeding, including a fixed frame 1 and a material cylinder 2. The material cylinder 2 is fixedly installed inside the fixed frame 1, the bottom of the material cylinder 2 is fixedly installed with a discharge port 3, and the top of the material cylinder 2 is fixedly installed with a feed cylinder 4.

[0027] A guide plate 5 is fixedly installed at the bottom of the feed cylinder 4. A distributing roller 6 is rotatably installed inside the feed cylinder 4. A storage groove 7 is opened on the outer wall of the distributing roller 6. An auger 8 is rotatably installed inside the feed cylinder 4. The auger 8 is located above the distributing roller 6. A vertical plate 12 is fixedly installed at the top of the feed cylinder 2. Two sets of second pulleys 10 are rotatably installed on the outer wall of the vertical plate 12. A first pulley 9 is rotatably installed on the outer wall of the vertical plate 12. One end of the first pulley 9 is fixedly connected to the distributing roller 6. One set of second pulleys 10 is located above the first pulley 9 and is fixedly connected to the auger 8. The first pulley 9 and the upper second pulley 10 are connected by a first transmission belt 11. The other set of second pulleys 10 is located to the right of the first pulley 9 and is fixedly connected to the first bevel gear 15. The first pulley 9 and the right second pulley 10 are connected by a second transmission belt 13.

[0028] When the device is needed, the operator places the material inside the feed cylinder 4 and then starts the first motor 14. The operation of the first motor 14 drives the second pulley 10 to rotate. The two sets of second pulleys 10 and the first pulley 9 are connected by a first transmission belt 11 and a second transmission belt 13, respectively. The rotation of the second pulley 10 drives the first pulley 9 to rotate. At this time, the rotation of the upper second pulley 10 drives the auger 8 to rotate. The auger 8 further agitates the material inside the feed cylinder 4 to prevent material deposition and clumping. Meanwhile, the operation of the first pulley 9 drives the distributing roller 6 to rotate, causing the material to accumulate. Inside the storage tank 7, as the distributing roller 6 rotates, the material falls onto the top of the guide plate 5 and eventually into the material cylinder 2. When discharging, the operator can activate the air jet 19 to dry the material on the guide plate 5. Furthermore, the rotation of the second pulley 10 on the right side drives the first bevel gear 15 to rotate. At this time, the second bevel gear 16 drives the stirring rod 17 and the scraper 18 to rotate. The rotation of the stirring rod 17 mixes the material, while the scraper 18 prevents the material from sticking to the conical outer wall of the material cylinder 2. After the mixing and drying operation is completed, the operator can open the discharge port 3 to discharge the material.

[0029] The operation of the first motor 14 causes the second pulley 10 and the first pulley 9 to rotate synchronously. The rotation of the auger 8 further agitates the material inside the feed cylinder 4, while the rotation of the distribution roller 6 feeds the material into the feed cylinder 2 in batches. Finally, the rotation of the first bevel gear 15 drives the stirring rod 17 to rotate, performing a mixing operation. Compared with traditional devices, this device can effectively prevent the discharge port from being blocked by the rotation of the distribution roller 6 and the auger 8, ensuring that the material enters the feed cylinder 2 evenly, effectively avoiding blockage and material adhesion problems, and improving work efficiency.

[0030] Among them, the discharge port 3 is equipped with a valve 20;

[0031] A fixed shell 22 is fixedly installed on the outer wall of the discharge port 3. A vibration groove 21 is opened on the right side wall of the discharge port 3. There are two sets of telescopic grooves 25 inside the fixed shell 22. A vibrating head 26 is movably installed inside the telescopic groove 25. The vibrating head 26 and the inner wall of the telescopic groove 25 are elastically connected by a spring 27. One end of the two sets of vibrating heads 26 extends through to the outside of the telescopic groove 25 and is fixedly connected to the transmission plate 28.

[0032] During material discharge, the operator can start the second motor 23. The operation of the second motor 23 drives the transmission rod 24 to rotate. The rotation of the transmission rod 24 will squeeze the transmission plate 28, causing the transmission plate 28 to pull the vibrating head 26 outward. The vibrating head 26 is then housed inside the telescopic groove 25, and the spring 27 is compressed. Due to the eccentric design of the transmission rod 24, after the transmission rod 24 rotates one revolution, the transmission plate 28 will reset through the elastic potential energy of the spring 27, and the vibrating head 26 will reset inside the vibration groove 21. Finally, the vibrating head 26 will hit the inner wall of the vibration groove 21, causing the discharge port 3 to vibrate. At this time, the vibration of the discharge port 3 will prevent the discharge port 3 from being blocked.

[0033] The second motor 23 drives the rotation of the transmission rod 24. Due to the eccentric design of the transmission rod 24, the rotation of the transmission rod 24 pulls the vibrating head 26 into the telescopic groove 25 through the transmission plate 28. Finally, the vibrating head 26 is reset and impacts the vibrating groove 21. Compared with the traditional device, this device can loosen the material blocked at the discharge port 3 by the high-frequency vibration of the vibrating head 26 during the discharge operation, making the discharge operation more efficient and reducing the workload.

[0034] The first motor 14 is fixedly installed on the rear side of the upright plate 12, and the output shaft of the first motor 14 is fixedly connected to one of the second pulleys 10.

[0035] The first motor 14 is configured to provide the torque for rotating the second pulley 10.

[0036] The mixing rod 17 is rotatably installed inside the material cylinder 2, and the second bevel gear 16 is rotatably installed on the top of the material cylinder 2. The second bevel gear 16 and the mixing rod 17 are fixedly connected, and the second bevel gear 16 and the first bevel gear 15 are connected in a transmission manner.

[0037] The second bevel gear 16 drives the stirring rod 17 and scraper 18 to rotate, and the rotation of the stirring rod 17 mixes the materials.

[0038] Scrapers 18 are fixedly installed on both the left and right sides of the bottom of the stirring rod 17, and the scraper 18 and the conical surface of the material cylinder 2 are in contact with each other. The scraper 18 is used to scrape off the material that sticks together after drying.

[0039] The conical surfaces of scraper 18 and material cylinder 2 fit together, so that the material will not stick to the inner wall of material cylinder 2 when the worker discharges the material.

[0040] The guide plate 5 is inclined, and the outer wall of the material cylinder 2 is fixedly provided with an air jet hole 19, which corresponds to the position of the guide plate 5.

[0041] The inclined arrangement of the guide plate 5 is used to guide the material to the center position of the barrel 2, while the arrangement of the jet hole 19 is used to dry the material inside the barrel 2.

[0042] The fixed housing 22 has a transmission rod 24 rotatably mounted inside, and the transmission rod 24 and the transmission plate 28 abut against each other. The outer wall of the fixed housing 22 has a second motor 23 fixedly mounted, and the output shaft of the second motor 23 is fixedly connected to the transmission rod 24.

[0043] The eccentric design of the transmission rod 24 causes the rotation of the transmission rod 24 to pull the vibrating head 26 into the telescopic groove 25 through the transmission plate 28, and finally the vibrating head 26 is reset to impact the vibration groove 21.

[0044] Working principle and usage process of this utility model:

[0045] When the device is needed, the operator places the material inside the feed cylinder 4 and then starts the first motor 14. The operation of the first motor 14 drives the second pulley 10 to rotate. The two sets of second pulleys 10 and the first pulley 9 are connected by a first transmission belt 11 and a second transmission belt 13, respectively. The rotation of the second pulley 10 drives the first pulley 9 to rotate. At this time, the rotation of the upper second pulley 10 drives the auger 8 to rotate. The auger 8 further agitates the material inside the feed cylinder 4 to prevent material deposition and clumping. Meanwhile, the operation of the first pulley 9 drives the distributing roller 6 to rotate, causing the material to accumulate. Inside the storage tank 7, as the distributing roller 6 rotates, the material falls onto the top of the guide plate 5 and eventually into the material cylinder 2. When discharging, the operator can activate the air jet 19 to dry the material on the guide plate 5. Furthermore, the rotation of the second pulley 10 on the right side drives the first bevel gear 15 to rotate. At this time, the second bevel gear 16 drives the stirring rod 17 and the scraper 18 to rotate. The rotation of the stirring rod 17 mixes the material, while the scraper 18 prevents the material from sticking to the conical outer wall of the material cylinder 2. After the mixing and drying operation is completed, the operator can open the discharge port 3 to discharge the material.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A loss-in-weight feeder scale for accurate metering, comprising a fixed frame (1) and a hopper (2), characterized in that: The inside of the fixed frame (1) is fixedly installed with a material cylinder (2), the bottom of the material cylinder (2) is fixedly installed with a discharge port (3), and the top of the material cylinder (2) is fixedly installed with a feeding cylinder (4); The bottom of the feeding cylinder (4) is fixedly installed with a guide plate (5), the inside of the feeding cylinder (4) is rotatably installed with a material distribution roller (6), the outer wall of the material distribution roller (6) is provided with a material storage groove (7), the inside of the feeding cylinder (4) is rotatably installed with an auger (8), the auger (8) is located above the material distribution roller (6), the top of the material cylinder (2) is fixedly installed with a vertical plate (12), the outer wall of the vertical plate (12) is rotatably installed with two groups of second pulleys (10), the outer wall of the vertical plate (12) is rotatably installed with a first pulley (9), one end of the first pulley (9) is fixedly connected with the material distribution roller (6), one group of the second pulleys (10) is located above the first pulley (9) and is fixedly connected with the auger (8), the first pulley (9) and the second pulley (10) above are drivingly connected through a first transmission belt (11), the other group of the second pulleys (10) is located to the right of the first pulley (9) and is fixedly connected with a first bevel gear (15), the first pulley (9) and the second pulley (10) on the right are drivingly connected through a second transmission belt (13).

2. A loss-in-weight feeder according to claim 1, wherein: The inside of the discharge port (3) is provided with a valve (20); The outer wall of the discharge port (3) is fixedly installed with a fixed shell (22), the right side wall of the discharge port (3) is provided with a vibration groove (21), the inside of the fixed shell (22) is provided with two groups of telescopic grooves (25), the inside of the telescopic groove (25) is movably installed with a vibration head (26), the vibration head (26) and the inner wall of the telescopic groove (25) are elastically connected through a spring (27), one end of the two groups of vibration heads (26) penetrates to the outside of the telescopic groove (25) and is fixedly connected with a transmission plate (28).

3. The loss-in-weight feeder according to claim 1, wherein: The rear side of the vertical plate (12) is fixedly installed with a first motor (14), the output shaft of the first motor (14) is fixedly connected with one group of the second pulleys (10).

4. The loss-in-weight feeder according to claim 1, wherein: The inside of the material cylinder (2) is rotatably installed with a stirring rod (17), the top of the material cylinder (2) is rotatably installed with a second bevel gear (16), the second bevel gear (16) is fixedly connected with the stirring rod (17), and the second bevel gear (16) is drivingly connected with the first bevel gear (15).

5. A loss-in-weight feeder according to claim 4, wherein: The left and right sides of the bottom of the stirring rod (17) are fixedly installed with scrapers (18), and the scrapers (18) and the conical surface of the material cylinder (2) are mutually attached, and the scrapers (18) are used for scraping the adhered materials after drying.

6. The loss-in-weight feeder according to claim 1, wherein: The guide plate (5) is inclined, the outer wall of the material cylinder (2) is fixedly provided with a gas injection hole (19), and the positions of the gas injection hole (19) and the guide plate (5) correspond.

7. A loss-in-weight feeder according to claim 2, wherein: The inside of the fixed shell (22) is rotatably installed with a transmission rod (24), the transmission rod (24) and a transmission plate (28) abut each other, the outer wall of the fixed shell (22) is fixedly installed with a second motor (23), and the output shaft of the second motor (23) is fixedly connected with the transmission rod (24).

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