A fully automatic precise dosing device

The gear transmission and weighing system of the fully automated precision drug dosing device solves the error problem of manual quantitative drug dosing, realizes automated and precise drug dosing, reduces the risk of cross-infection, and ensures accurate drug concentration.

CN224578051UActive Publication Date: 2026-07-31MUYUAN FOOD GROUP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
MUYUAN FOOD GROUP CO LTD
Filing Date
2025-07-23
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Existing automated dosing devices require manual quantitative drug delivery, which is prone to errors, resulting in inaccurate drug concentrations and posing a risk of cross-infection.

Method used

A fully automatic precision drug dosing device was designed, which uses gear transmission and weighing sensors to control the amount of drug dispensed. Automatic and precise drug dosing is achieved through partial gear engagement. Combined with a stirring device, the device prevents the drug from bridging. The device is equipped with a control system to achieve fully automatic operation.

Benefits of technology

It enables automated and precise drug administration without human intervention, reduces the risk of cross-infection, ensures accurate drug concentration, avoids overdose or underdose, and has data traceability capabilities.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model belongs to the technical field of pig farming, specifically disclosing a fully automatic precision medication dosing device, including: a medication bin for temporary medication storage, with a medication dispensing device at the bottom; the medication dispensing device for controlling medication dispensing, comprising a dispensing motor, a primary gear, a secondary gear, a counterweight, and a dispensing rotating plate, the shaft of the dispensing motor connected to the primary gear, and the shaft of the dispensing rotating plate connected to the secondary gear, the primary and secondary gears meshing, and the primary and / or secondary gears having incomplete tooth counts; one side of the dispensing rotating plate forming a seal with the medication dispensing hole of the medication bin, and the counterweight installed on the other side; and a weighing bin located below the medication dispensing device, used to receive and weigh the medication dispensed from the medication bin in real time. This utility model eliminates the need for manual medication dispensing, reducing the risk of cross-infection from manual handling of medication, and enabling automatic and precise medication administration.
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Description

Technical Field

[0001] This utility model belongs to the technical field of pig farming, and in particular relates to a fully automatic precision dosing device. Background Technology

[0002] In the pig farming industry, medication is needed for prevention and treatment of pigs to ensure their health and prevent death from illness. Among the various methods of medication administration, common methods include manual administration, injection, and drinking water administration. Manual administration poses a risk of cross-contamination due to frequent contact between the worker and the medication surface; injection involves personnel contact with the pigs, and inadequate needle disinfection can lead to further disease transmission; while drinking water administration automatically delivers medication to the pigs' feed troughs via pipelines, requiring minimal human intervention, and the system is fully automated, simple, convenient, and saves time and effort.

[0003] Currently, although automatic dosing devices are used for administering medication through drinking water, personnel still need to weigh the corresponding medication daily according to the dosage and add it to the dosing device. This is cumbersome, and personnel may make mistakes in weighing the medication. If too little medication is weighed, the concentration will be low and there will be no therapeutic effect. If too much medication is weighed, the concentration will be too high, which may lead to poisoning of the pig herd in severe cases.

[0004] Therefore, how to solve the above problems has become a key research topic in the existing technology field. Utility Model Content

[0005] In order to overcome the above-mentioned shortcomings of the prior art, this utility model provides a fully automatic precision dosing device, which solves the above problems.

[0006] To achieve the above objectives, this utility model discloses a fully automatic precision dosing device, comprising:

[0007] A medicine storage compartment is used to temporarily store medicines, and a medicine dispensing device is provided at the bottom of the medicine storage compartment;

[0008] A medicine dispensing device is used to control the dispensing of medicine from the medicine bin. The medicine dispensing device includes a dispensing motor, a primary gear, a secondary gear, a counterweight, and a dispensing rotating plate. The shaft of the dispensing motor is connected to the primary gear, and the shaft of the dispensing rotating plate is connected to the secondary gear. The primary gear and the secondary gear mesh, and the primary gear and / or the secondary gear do not have all the teeth. One side of the dispensing rotating plate forms a seal with the dispensing hole of the medicine bin, and the counterweight is installed on the other side.

[0009] The weighing chamber, located at the bottom of the drug dispensing device, is used to receive and weigh the weight of the drug in the drug chamber in real time, so that when the weight of the drug reaches the set value, the drug will be automatically put into the designated position.

[0010] Compared with existing technologies, this application has the following advantages: First, the medicine is stored in the medicine chamber. When medicine needs to be dispensed, the dispensing motor drives the primary gear to rotate. The primary gear, through the secondary gear, drives the dispensing plate to rotate, thereby opening the dispensing hole. The medicine falls from the medicine chamber into the weighing chamber, which monitors the weight of the medicine in real time. It should be noted that because the primary and / or secondary gears do not have all their teeth, they will be out of mesh for a period of time during rotation. During this time, the dispensing plate, under the action of the counterweight, will reset and close the dispensing hole. When they mesh again, the dispensing hole will reopen. Therefore, when the medicine weight is close to the set value, the dispensing motor will continue to rotate. When the primary and secondary gears are out of mesh, the dispensing motor stops working. At this time, the dispensing plate, under the action of the counterweight, resets and closes the dispensing hole, ensuring that the medicine in the weighing chamber meets the set value requirements.

[0011] In summary, the design of this application eliminates the need for manual drug addition during administration, reducing the risk of cross-infection from manual drug handling and enabling automatic and precise drug delivery, thus avoiding problems caused by over- or under-dosing.

[0012] Furthermore, the first-stage gear is a half-tooth, and the second-stage gear is a full-tooth.

[0013] Furthermore, the interior of the medicine compartment is a conical smooth surface with a partition plate in the center, which is used to divide the medicine compartment into two parts.

[0014] Furthermore, the partition plate has a smooth surface, and its bottom is connected to two inner folded plate surfaces and has an opening at the bottom of the medicine compartment, thereby forming two independent and unconnected medicine dispensing holes.

[0015] Furthermore, the top of the medicine compartment is provided with a medicine compartment cover, the inside of which is equipped with a sealing gasket, and its exterior is detachably connected to the medicine compartment.

[0016] Furthermore, the medicine compartment is equipped with a stirring device to prevent the medicine from caking.

[0017] Furthermore, the stirring device includes a stirring rod, the upper end of which is connected to the medicine container cover, and the lower end of which is connected to the medicine dispensing plate.

[0018] Furthermore, the stirring rod includes a flexible main shaft, longitudinal stirring rings, and transverse stirring rods. The flexible main shaft connects to multiple longitudinal stirring rings, and the transverse stirring rods are connected to the longitudinal stirring rings.

[0019] Furthermore, the weighing chamber includes a weighing medicine bin, a weighing sensor, and a weighing dispensing device. The weighing medicine bin has a smooth interior and an open top for receiving medicines dropped by the rotating dispensing plate. The weighing sensor is connected to the weighing medicine bin for real-time monitoring of the medicine weight. The weighing dispensing device controls the dispensing of medicines from the weighing medicine bin, and the weighing dispensing device has the same structure as the medicine bin dispensing device.

[0020] Furthermore, it also includes a control system, which is electrically connected to the weighing sensor, the weighing and dispensing device, and the dispensing device in the medicine bin, respectively. The control system controls the operation of the weighing and dispensing device and the dispensing device in the medicine bin based on the drug weight information fed back by the weighing sensor, and uploads the drug data to the cloud platform. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of the fully automatic precision dosing device according to an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the internal structure of the medicine compartment in an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the medicine dispensing device according to an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of the first-stage gear and the second-stage gear in an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the stirring rod in an embodiment of the present invention.

[0027] The attached figures are labeled as follows:

[0028] 1. Medicine bin; 11. Divider plate; 2. Medicine bin dispensing device; 21. Dispensing motor; 22. Primary gear; 23. Secondary gear; 24. Counterweight; 25. Dispensing rotating plate; 3. Weighing bin; 31. Weighing and dispensing device; 32. Weighing sensor; 33. Weighing medicine bin; 4. Medicine bin cover; 5. Stirring rod; 51. Flexible main shaft; 52. Longitudinal stirring ring; 53. Transverse stirring rod; 6. Support frame; 7. Medicine barrel. Detailed Implementation

[0029] 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.

[0030] like Figure 1-3 As shown, this utility model discloses a fully automatic precision dosing device, comprising:

[0031] Medicine storage compartment 1 is used for temporary storage of medicines. Medicine storage compartment 1 is equipped with a medicine dispensing device 2 at its lower part.

[0032] The medicine dispensing device 2 is used to control the dispensing of medicine from the medicine bin 1. The medicine dispensing device 2 includes a dispensing motor 21, a primary gear 22, a secondary gear 23, a counterweight 24, and a dispensing rotating plate 25. The shaft of the dispensing motor 21 is connected to the primary gear 22, and the shaft of the dispensing rotating plate 25 is connected to the secondary gear 23. The primary gear 22 and the secondary gear 23 mesh, and the primary gear 22 and / or the secondary gear 23 do not have all the teeth. One side of the dispensing rotating plate 25 forms a seal with the dispensing hole of the medicine bin 1, and the counterweight 24 is installed on the other side.

[0033] Weighing chamber 3, located at the bottom of the medicine dispensing device 2, is used to receive and weigh the medicine dispensed from medicine chamber 1 in real time, so that when the medicine weight reaches the set value, the medicine will be automatically put into the designated position.

[0034] The medicine chamber 1 and the weighing chamber 3 are installed on the upper and lower parts of the support 6, respectively. The internal structure of the medicine chamber 1 is a conical smooth surface with an opening at the bottom. The medicine flows smoothly into the medicine hole by its own weight. The upper part of the weighing chamber 3 is an open structure with a smooth interior. It is used to receive the medicine falling from the rotating medicine plate 25 and weigh the medicine in real time. A medicine bucket 7 is set at the lower part of the weighing chamber 3. When the weight of the medicine weighed by the weighing chamber 3 reaches the set value, it puts the medicine into the medicine bucket 7.

[0035] Compared with the prior art, this application has the following advantages: First, the medicine is stored in the medicine chamber 1. When medicine needs to be dispensed, the dispensing motor 21 drives the primary gear 22 to rotate. The primary gear 22 then drives the dispensing plate 25 to rotate through the secondary gear 23, thereby opening the dispensing hole. The medicine falls from the medicine chamber 1 into the weighing chamber 3, which monitors the weight of the medicine in real time. It should be noted that because the primary gear 22 and / or the secondary gear 23 do not have all the teeth, they will be out of mesh for a period of time during rotation. At this time, the dispensing plate 25 will reset and close the dispensing hole under the action of the counterweight 24. When they mesh again, the dispensing hole will reopen. Therefore, when the weight of the medicine is about to reach the set value, the dispensing motor 21 will continue to rotate. When the primary gear 22 and the secondary gear 23 are out of mesh, the dispensing motor 21 stops working. At this time, the dispensing plate 25 will reset under the action of the counterweight 24, closing the dispensing hole, and the medicine in the weighing chamber 3 will meet the set value requirements.

[0036] In summary, the design of this application eliminates the need for manual drug addition during administration, reducing the risk of cross-infection from manual drug handling and enabling automatic and precise drug delivery, thus avoiding problems caused by over- or under-dosing.

[0037] Following the above embodiments, more specifically, as Figure 4 As shown, in an optimal embodiment, the primary gear 22 has a half-tooth tooth, and the secondary gear 23 has a full-tooth tooth. With this design, for every one revolution of the primary gear 22, the secondary gear 23 rotates half a revolution. This means that the dispensing plate 25 is open for dispensing material for half the time that the primary gear 22 rotates once, and closed for the other half due to the counterweight 24. In summary, the state of the dispensing plate 25 is accurately calculated based on time, and combined with the drug weight signal from the weighing chamber 3, the dispensing motor 21 is controlled to ensure that the drug weight in the weighing chamber 3 meets the requirements.

[0038] In other embodiments, if the primary gear 22 has full teeth and the secondary gear 23 has half teeth, and if the toothless part of the secondary gear 23 is facing the primary gear 22 when it stops, then when the primary gear 22 rotates, it will pass through the toothless part of the secondary gear 23, making it difficult for the two to mesh, which will affect the feeding. If the primary gear 22 has too many teeth, it means that the meshing time between the primary gear 22 and the secondary gear 23 is long. Although the feeding efficiency is high, it is difficult to control the feeding amount. For example, when the weighing chamber 3 feedbacks that the weight of the drug is close to the set value, the primary gear 22 still needs to continue to rotate until the toothless part contacts the secondary gear 23 before the feeding plate 25 closes, which may cause excessive feeding. Conversely, if the primary gear 22 has too few teeth, the feeding plate 25 will be open for a short time during one rotation of the primary gear 22, resulting in low feeding efficiency.

[0039] In summary, after multiple experimental verifications, the optimal tooth number relationship is that the first-stage gear has 22 half teeth and the second-stage gear has 23 full teeth.

[0040] Following the above embodiment, more specifically, the interior of the medicine compartment 1 has a conical smooth surface and a partition plate 11 is provided in the center. The partition plate 11 is used to divide the medicine compartment 1 into two parts. Through the design of the partition plate 11, the medicine compartment can hold two kinds of medicines.

[0041] Furthermore, the partition plate 11 has a smooth surface and two inner folded plate surfaces connected to its bottom, which are opened at the bottom of the medicine chamber 1, thus forming two independent and unconnected dispensing holes. This prevents the two drugs from crossing when being dispensed, and the two drugs can be stored in the medicine chamber 1 to meet the piglets' medication needs for two weeks. In addition, a medicine chamber dispensing device 2 is installed under each dispensing hole to control which drug is dispensed as needed.

[0042] Following the above embodiments, more preferably, in order to prevent moisture from entering the medicine compartment 1, a medicine compartment cover 4 is provided on the top of the medicine compartment 1. The medicine compartment cover 4 is equipped with a sealing gasket inside, and its exterior is detachably connected to the medicine compartment 1 to ensure a tight seal. In one embodiment, the medicine compartment cover 4 and the medicine compartment 1 are connected by a snap fastener.

[0043] Following the above embodiments, a more preferred embodiment is, as follows: Figure 2 As shown, the medicine compartment 1 is equipped with a stirring device to prevent the medicine from caking. The stirring device can solve the problem of poor dispensing caused by the medicine caking.

[0044] Specifically, the stirring device includes a stirring rod 5. The upper end of the stirring rod 5 is connected to the medicine container cover 4, and its lower end is connected to the medicine dispensing rotating plate 25. Therefore, during the rotation of the medicine dispensing rotating plate 25, the stirring rod 5 will be driven to move up and down. The stirring rod 5 does not need to be connected to a power mechanism to achieve the purpose of breaking the arch.

[0045] Following the above embodiments, a more preferred embodiment is, as follows: Figure 5 As shown, the stirring rod 5 includes a flexible main shaft 51, longitudinal stirring rings 52, and transverse stirring rods 53. The flexible main shaft 51 connects to multiple longitudinal stirring rings 52, and the transverse stirring rods 53 are connected to the longitudinal stirring rings 52. The flexible main shaft 51 has an extension function, and the surface of the stirring rods 5 is entirely smooth. When the dispensing plate 25 is moved, the flexible main shaft 51 moves up and down accordingly, the longitudinal stirring rings 52 also move longitudinally at the same time, and the transverse stirring rods 53 move laterally. This creates both lateral and longitudinal disturbances within the dispensing chamber 1, which can fully stir the temporarily stored drugs and prevent drug clumping or arching. Furthermore, this stirring and arch-breaking structure does not require an additional stirring motor; the existing dispensing motor 21 can achieve the arch-breaking effect, reducing costs.

[0046] Following the above embodiment, more specifically, the weighing chamber 3 includes a weighing medicine chamber 33, a weighing sensor 32, and a weighing dispensing device 31. The weighing medicine chamber 33 has a smooth interior and an open top, which is used to receive the medicine falling from the rotating dispensing plate 25. The weighing sensor 32 is connected to the weighing medicine chamber 33 and is used to monitor the weight of the medicine in real time. The weighing dispensing device 31 is used to control the dispensing of medicine from the weighing medicine chamber 33, and the weighing dispensing device 31 has the same structure as the medicine chamber dispensing device 2.

[0047] Following the above embodiments, more specifically, it also includes a control system. The control system is electrically connected to the weighing sensor 32, the weighing and dispensing device 31, and the drug dispensing device 2. The control system controls the operation of the weighing and dispensing device 31 and the drug dispensing device 2 based on the drug weight information fed back by the weighing sensor 32, and uploads the drug data to the cloud platform. Through the design of the control system, the equipment can be automatically controlled, eliminating behaviors such as under-dispensing, over-dispensing, no dispensing, missed dispensing, and random dispensing. The entire process is traceable, accurately recording and reporting drug dispensing information, effectively ensuring the treatment effect.

[0048] The workflow for this application is as follows:

[0049] 1. Users can add one or two medications according to their medication needs. They can open the medicine compartment cover 4 and add the medication to the medicine compartment 1 at once.

[0050] 2. Based on the type of pig herd and the amount of different drugs ingested, the system automatically controls the dispensing motor 21 to rotate, which drives the first gear 22 to rotate and mesh with the second gear 23. The dispensing plate 25 rotates at a certain angle, the dispensing hole is in the open state, and the drug automatically falls into the weighing drug bin 33.

[0051] 3. When the toothless part of the first-stage gear 22 is not engaged with the second-stage gear 23, the dispensing plate 25 is unbalanced due to the action of the counterweight 24, and automatically closes the dispensing hole to complete one dispensing operation.

[0052] 4. The control system compares the data returned by the weighing sensor 32 to see if the dosage is met. If not, it controls the dispensing motor 21 to rotate to perform secondary or even multiple dispensing.

[0053] 5. Since the upper end of the stirring rod 5 is connected to the medicine bin cover 4 and the lower end is connected to the medicine dispensing rotating plate 25, during the continuous dispensing process, the medicine dispensing rotating plate 25 continuously swings, driving the stirring rod 25 to stir in the medicine bin 1, breaking up the arch in the medicine bin and preventing arching.

[0054] 6. If the weighing sensor 32 detects that the weight of the weighing medicine bin 33 has reached the set value, the control system controls the dispensing motor 21 to stop rotating and the dispensing plate 25 to close, ensuring the internal sealing of the medicine bin 1.

[0055] 7. Then the weighing and dispensing device 31 is started, continuously dispensing all the medicine in the weighing medicine bin 33 into the medicine barrel 7;

[0056] 8. After the drug is dispensed, the weighing and dispensing device 31 stops working, and the dispensing plate 25 at its bottom resets and closes, preventing water vapor from entering the drug tank 7.

[0057] 9. The water reserved in the medicine tank 7 is mixed with the medicine that falls in to form a medicine solution, which flows to the unit for the pigs to drink.

[0058] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fully automatic precision dosing device, characterized in that, include: A medicine storage compartment is used to temporarily store medicines, and a medicine dispensing device is provided at the bottom of the medicine storage compartment; A medicine dispensing device is used to control the dispensing of medicine from the medicine bin. The medicine dispensing device includes a dispensing motor, a primary gear, a secondary gear, a counterweight, and a dispensing rotating plate. The shaft of the dispensing motor is connected to the primary gear, and the shaft of the dispensing rotating plate is connected to the secondary gear. The primary gear and the secondary gear mesh, and the primary gear and / or the secondary gear do not have all the teeth. One side of the dispensing rotating plate forms a seal with the dispensing hole of the medicine bin, and the counterweight is installed on the other side. The weighing chamber, located at the bottom of the drug dispensing device, is used to receive and weigh the weight of the drug in the drug chamber in real time, so that when the weight of the drug reaches the set value, the drug will be automatically put into the designated position.

2. The full-automatic precision dosing device according to claim 1, characterized in that, The first-stage gear is a half-tooth, and the second-stage gear is a full-tooth.

3. The full-automatic precision dosing device according to claim 1, characterized in that, The interior of the medicine compartment is a conical smooth surface with a partition plate in the middle, which is used to divide the medicine compartment into two parts.

4. The full-automatic precision dosing device according to claim 3, characterized in that, The partition plate has a smooth surface and two inner folded plate surfaces connected to its bottom, which are also connected to the bottom of the medicine compartment, thus forming two independent and unconnected medicine dispensing holes.

5. The fully automatic precision dosing device according to any one of claims 1 to 4, characterized in that The top of the medicine compartment is equipped with a medicine compartment cover, the inside of which is fitted with a sealing gasket, and the outside of which is detachably connected to the medicine compartment.

6. The fully automatic precision dosing device according to claim 5, characterized in that The medicine storage compartment is equipped with a stirring device to prevent the medicine from caking.

7. The fully automatic precision dosing device according to claim 6, characterized in that The stirring device includes a stirring rod, the upper end of which is connected to the medicine container cover, and the lower end of which is connected to the medicine dispensing plate.

8. The fully automatic precision dosing device according to claim 7, characterized in that The stirring rod includes a flexible main shaft, longitudinal stirring rings, and transverse stirring rods. The flexible main shaft is connected to multiple longitudinal stirring rings, and the transverse stirring rods are connected to the longitudinal stirring rings.

9. The fully automatic precision dosing device according to claim 1, characterized in that The weighing chamber includes a weighing medicine bin, a weighing sensor, and a weighing dispensing device. The weighing medicine bin has a smooth interior and an open top, which is used to receive the medicine falling from the rotating dispensing plate. The weighing sensor is connected to the weighing medicine bin and is used to monitor the weight of the medicine in real time. The weighing dispensing device is used to control the dispensing of medicine from the weighing medicine bin, and the weighing dispensing device has the same structure as the medicine bin dispensing device.

10. The fully automatic precision dosing device according to claim 9, characterized in that It also includes a control system, which is electrically connected to the weighing sensor, the weighing and dispensing device, and the dispensing device in the medicine bin. The control system controls the operation of the weighing and dispensing device and the dispensing device in the medicine bin according to the drug weight information fed back by the weighing sensor, and uploads the drug data to the cloud platform.