Automatic raw material proportioning and stirring device based on aromatherapy preparation

Abstract

The invention discloses an automatic raw material proportioning and stirring device based on aromatherapy preparation. The automatic raw material proportioning and stirring device comprises a supporting frame, a stirring tank is fixed in the supporting frame, an observation window is embedded in the front end face of the stirring tank, a main material input pipe is embedded in the front end face of the stirring tank, magnetic stirring blades are rotationally installed at the lower end of an inner cavity of the stirring tank, and a first motor is installed on the lower end face of the stirring tank. According to the invention, through cooperative work of the liquid material proportioning assembly and the solid material proportioning assembly, independent and accurate metering of liquid and solid raw materials is realized, a telescopic air cylinder driven by a servo or stepping motor is adopted to push a material pushing disc precisely matched with a liquid material barrel to quantify the volume of the liquid, and the stroke and the liquid discharge amount are in a stable linear relationship; the total weight of a solid material barrel is monitored in real time through a weightlessness scale, a fourth motor is controlled to drive a feeding screw rod to conduct weightlessness method metering, the two modes are both controlled in a programmed mode through a center control board, it is ensured that formulas of aromatherapy in each batch are absolutely consistent, and raw material waste caused by excessive feeding is avoided.

Description

Technical Field

[0001] This invention relates to the field of aromatherapy processing equipment technology, and in particular to an automated raw material proportioning and mixing device for aromatherapy preparation. Background Technology

[0002] In the field of aromatherapy product processing technology, one of the core processes is to precisely proportion and uniformly mix raw materials of various forms and properties, such as essential oils, base oils, solvents, fragrance powders, or plant extracts, according to specific and complex formulas. The quality of aromatherapy products is highly dependent on the accuracy of the proportions and the uniformity of the mixing. Any slight deviation may lead to significant changes in aroma characteristics, volatility, and even stability. At the same time, many aromatherapy raw materials (such as natural essential oils) have high volatility, are easily oxidized, or have high economic value, which places stringent requirements on the airtightness of the production process, pollution control, and raw material utilization. Traditional manual or semi-automated production methods can no longer meet the market's increasing demands for product consistency, production efficiency, and hygiene standards.

[0003] Traditional aromatherapy mixing devices mostly use open or semi-open containers for manual feeding and mechanical mixing. This results in problems such as reliance on manual weighing for proportioning, large errors, low efficiency, and easy loss of volatile components, oxidation of raw materials, and cross-contamination between different batches during the mixing process. Their mixing structure often uses a shaft seal type, which poses a risk of leakage during long-term operation and is also inconvenient for cleaning and maintenance. Therefore, we propose an automated raw material proportioning and mixing device based on aromatherapy preparation to solve this problem. Summary of the Invention

[0004] The purpose of this invention is to provide an automated raw material proportioning and mixing device for aromatherapy preparation, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An automated raw material proportioning and mixing device for aromatherapy preparation includes: A support frame is provided, inside which a mixing tank is fixed. An observation window is fitted into the front end face of the mixing tank, and a main material input pipe is fitted into the front end face of the mixing tank. A magnetic stirring blade is rotatably installed at the lower end of the inner cavity of the mixing tank. A first motor is installed on the lower end face of the mixing tank, and a discharge valve is installed on the lower end face of the mixing tank. A first material guide pump is installed at the other end of the discharge valve. A material guide pipe is installed at the output end of the first material guide pump, and a material storage component is installed at the other end of the material guide pipe. An arc-shaped support plate is fixed on the upper end face of the support frame. A cover plate assembly includes an assembly base mounted on the upper surface of the arc-shaped support plate. A C-shaped plate is fixed on the upper surface of the assembly base. A lead screw is rotatably mounted inside the C-shaped plate, and a lifting seat is meshed with the surface of the lead screw. A second motor is fixed on the upper surface of the C-shaped plate. A sliding groove is opened on one side of the inner wall of the C-shaped plate, and a T-shaped slider is slidably sleeved inside the sliding groove. An end cover is installed on the front end face of the lifting seat, and a feeding port is fitted inside the end cover. A liquid material proportioning component includes a support cylinder fixed to the upper end face of an end cap. A rotating seat is rotatably mounted on the upper end face of the support cylinder via a bearing. A third motor is mounted on the upper end of the inner wall of the support cylinder. Multiple connecting seats are equidistantly fixed on the outer side of the rotating seat. Two connecting rods are fixed on both sides of the lower end face of the connecting seats. A lower end seat is sleeved on the surface of the connecting rod, and a connecting nut is threaded onto the lower end face of the connecting rod. A liquid material cylinder is movably connected to the lower end face of the connecting seat. A feeding port is fitted into the front end face of the liquid material cylinder, and a sealing plug is snapped onto the front end face of the feeding port. A duckbill valve is installed on the lower end face of the liquid material cylinder. A telescopic cylinder is installed on the upper end face of the connecting seat, and a pusher plate is fixed at the telescopic end below the telescopic cylinder. A solid material proportioning component includes a loss-in-weight scale fixed to the upper surface of an arc-shaped support plate, a lifting frame fixed to the upper surface of the loss-in-weight scale, a solid material cylinder fixed to the upper surface of the lifting frame, slots on both sides of the upper surface of the solid material cylinder, an annular support sleeve fitted inside the solid material cylinder, lugs fixed to both sides of the annular support sleeve, an elastic telescopic rod installed on the upper surface of the annular support sleeve, a screen fixed to the upper surface of the elastic telescopic rod, a discharge hopper fixed to the lower surface of the solid material cylinder, a feeding pipe fixed to the lower surface of the discharge hopper, a feeding screw rotatably installed inside the feeding pipe, and a fourth motor connected to the feeding screw at one end of the feeding pipe. The material storage assembly includes an outer shell fixed to the output end of the feed pipe, a storage tank fixed inside the outer shell, a heating tube fixed to the surface of the storage tank, a central control plate fixed to the front end of the outer shell, a sealing plate installed on the upper end of the outer shell, and a second feed pump installed at the other end of the outer shell.

[0006] Preferably, the output end of the first motor is magnetically connected to the magnetic stirring blade to drive the magnetic stirring blade to rotate.

[0007] Preferably, the T-shaped slider is fixedly connected to the rear end face of the lifting seat, and the lifting seat forms a slidable structure through the T-shaped slider and the slide groove.

[0008] Preferably, the end cap is located above the mixing tank, and the end cap is arranged perpendicular to the central axis of the mixing tank.

[0009] Preferably, the output end of the third motor passes through the support cylinder and is connected to the rotating seat for driving the rotating seat to rotate.

[0010] Preferably, the pusher plate is located inside the liquid cylinder, and the duckbill valve is located above the feed port.

[0011] Preferably, the lower end seat is sleeved on the surface of the duckbill valve, and the lower end seat is movably connected to the lower end face of the liquid cylinder, and the liquid cylinder forms an assemblable structure through the lower end seat and the connecting seat.

[0012] Preferably, the hanging ear is sleeved with the inner cavity of the slot, and the annular support forms an assemblable structure through the hanging ear, the slot and the solidification cylinder.

[0013] Preferably, the feeding pipe is connected to the inner cavity of the mixing tank, and the output end of the discharge hopper is connected to the inner cavity of the feeding pipe.

[0014] Preferably, the output end of the feed pipe passes through the outer shell and is connected to the inner cavity of the storage tank, the input end of the second feed pump passes through the outer shell and is connected to the inner cavity of the storage tank, and the output end of the second feed pump is equipped with a connecting flange for connection and assembly with external equipment.

[0015] The beneficial effects of this invention are as follows: 1. In this invention, the independent and accurate metering of liquid and solid raw materials is achieved through the coordinated work of the liquid proportioning component and the solid proportioning component. For liquids, a telescopic cylinder driven by a servo or stepper motor is used to push a pusher plate that is precisely matched with the liquid cylinder for volume metering. The stroke and the amount of liquid discharged have a stable linear relationship. For solids, a loss-in-weight scale is used to monitor the total weight of the solid cylinder in real time. The loss-in-weight method is used to measure the solids by controlling the fourth motor to drive the feeding screw. Both methods are controlled by the programmable control board, which not only eliminates human error and ensures that the formula of each batch of aromatherapy is absolutely consistent, but also avoids the waste of raw materials caused by overfeeding. It achieves high-precision, multi-raw material automated proportioning, improves product consistency and raw material utilization. 2. In this invention, the core mixing area of ​​the device adopts a fully enclosed design. The end cap of the cover plate assembly is smoothly pressed into the mouth of the mixing tank by a precision lead screw driven by a second motor and a T-shaped slider guide mechanism. The embedded sealing ring ensures the sealing of the mixing chamber. The stirring power is transmitted to the magnetic stirring blades without contact through the magnetic coupler of the first motor, eliminating the risk of shaft seal leakage. The duckbill valve on the liquid addition path has a one-way check function, and a butterfly valve is provided at the end of the solid addition path to effectively prevent the backflow of steam in the tank and cross-contamination between different raw materials. It is especially suitable for precious aromatherapy raw materials such as essential oils that are volatile and easily oxidized. It has excellent sealing and anti-contamination design to ensure the activity of volatile raw materials and the purity of the product. 3. In this invention, several key components of the device adopt a quick assembly structure, which greatly improves usability. The liquid material cylinder is suspended and installed through the lower end seat, connecting rod and connecting nut, and can be quickly disassembled for cleaning or material replacement. The annular support and screen inside the solid material cylinder are suspended by the hanging ears and the slot, which can be easily lifted for thorough cleaning to prevent raw material residue. In addition, the observation window at the front of the mixing tank is equipped with a capacity scale for convenient and intuitive monitoring of the liquid level. These designs reduce the complexity of operation and maintenance time, meet the high efficiency and hygiene requirements of modern production equipment, and have significant modular and humanized design, making it easy to operate, clean and maintain. 4. In this invention, the device integrates a complete production process chain. Under the unified scheduling of the central control board, it automatically completes sealing and sealing, precise feeding, and constant temperature mixing with magnetic stirring blades. After mixing, the finished product is automatically pumped into the storage tank of the storage component through the discharge valve, the first feed pump, and the feed pipe. The tank is equipped with a heating pipe and a temperature control system to keep the finished product warm. Finally, it is output to the downstream packaging line through the second feed pump and its connecting flange. The whole process is continuous, closed, and automated, reducing intermediate transfer links. While ensuring quality, it significantly improves the overall production efficiency, realizing full-process automation and integration from batching, mixing to storage and output, thereby improving production efficiency. Attached Figure Description

[0016] Figure 1 This is a front view schematic diagram of the automated raw material proportioning and stirring device based on aromatherapy preparation proposed in this invention; Figure 2 This is a schematic diagram of the internal structure of the mixing tank in this invention; Figure 3 This is a schematic diagram of the structure of the cover plate assembly in this invention; Figure 4 This is a schematic diagram of the liquid proportioning component in this invention; Figure 5 This is a schematic diagram of the structure of the explosion at the liquid cylinder in this invention; Figure 6 This is a schematic diagram of the cross-sectional structure of the solid material proportioning component in this invention; Figure 7 This is a schematic diagram of the structure of the material storage component in this invention.

[0017] In the diagram: 1. Support frame; 2. Mixing tank; 3. Observation window; 4. Main material input pipe; 5. Magnetic stirring blade; 6. First motor; 7. Discharge valve; 8. First feed pump; 9. Feed pipe; 10. Storage assembly; 1001. Outer shell; 1002. Storage tank; 1003. Heating tube; 1004. Central control panel; 1005. Sealing plate; 1006. Second feed pump; 11. Arc-shaped support plate; 12. Cover plate assembly; 1201. Assembly base; 1202. C-shaped plate; 1203. Lead screw; 1204. Lifting base; 1205. Second motor; 1206. Slide groove; 1207. T-shaped slider; 1208. End cap; 1209. Feed port; 13. Liquid proportioning assembly; 130 1. Support cylinder; 1302. Rotary seat; 1303. Third motor; 1304. Connecting seat; 1305. Connecting rod; 1306. Lower end seat; 1307. Connecting nut; 1308. Liquid cylinder; 1309. Feeding port; 1310. Sealing plug; 1311. Duckbill valve; 1312. Telescopic cylinder; 1313. Pusher plate; 14. Solid material proportioning component; 1401. Loss-in-weight scale; 1402. Lifting frame; 1403. Solid material cylinder; 1404. Slot; 1405. Annular support; 1406. Hanging lug; 1407. Elastic telescopic rod; 1408. Screen; 1409. Discharge hopper; 1410. Feeding pipe; 1411. Feeding screw; 1412. Fourth motor. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0019] Reference Figure 1 - Figure 7 An automated raw material proportioning and mixing device for aromatherapy preparation includes: A support frame 1 is provided, and a mixing tank 2 is fixed inside the support frame 1. An observation window 3 is fitted into the front end face of the mixing tank 2, and a main material input pipe 4 is fitted into the front end face of the mixing tank 2. A magnetic stirring blade 5 is rotatably installed at the lower end of the inner cavity of the mixing tank 2. A first motor 6 is installed on the lower end face of the mixing tank 2. A discharge valve 7 is installed on the lower end face of the mixing tank 2, and a first feed pump 8 is installed at the other end of the discharge valve 7. A feed pipe 9 is installed at the output end of the first feed pump 8, and a material storage assembly 10 is installed at the other end of the feed pipe 9. An arc-shaped support plate 11 is fixed on the upper end face of the support frame 1. The observation window 3 is a double-layered heat-resistant glass structure. Capacity scales are etched or pasted on the surface or outer frame of the observation window 3 for visual estimation of the liquid level in the tank. The first motor 6 has an integrated magnetic coupling drive unit, which drives the external permanent magnet to rotate. Through magnetic force, it drives the magnetic stirring blade 5 located inside the sealed mixing tank 2 to rotate synchronously, thereby achieving efficient mixing in a completely sealed state and eliminating the risk of leakage at the shaft seal. The cover plate assembly 12 includes an assembly base 1201 mounted on the upper end face of the arc-shaped support plate 11. A C-shaped plate 1202 is fixed on the upper end face of the assembly base 1201. A lead screw 1203 is rotatably mounted in the inner cavity of the C-shaped plate 1202, and a lifting seat 1204 is meshed with the surface of the lead screw 1203. A second motor 1205 is fixed on the upper end face of the C-shaped plate 1202. A sliding groove 1206 is opened on one side of the inner wall of the C-shaped plate 1202, and a T-shaped slider 1207 is slidably sleeved in the inner cavity of the sliding groove 1206. An end cover 1208 is mounted on the front end face of the lifting seat 1204, and a feeding port 1209 is fitted inside the end cover 1208. The lower end face of the end cover 1208 is embedded with a sealing ring. When the second motor 1205 drives the lead screw 1203 to rotate, and drives the lifting seat 1204 to move down along the slide 1206 to the end point, the end cover 1208 will tightly cover the top opening of the mixing tank 2 to form a sealed cavity. The feed port 1209 vertically penetrates the end cover 1208 and serves as the channel for liquid raw materials to enter the mixing tank 2. Liquid mixing assembly 13 includes a support cylinder 1301 fixed to the upper end face of end cap 1208. A rotating seat 1302 is rotatably mounted on the upper end face of the support cylinder 1301 via a bearing. A third motor 1303 is mounted on the upper end of the inner wall of the support cylinder 1301. Multiple connecting seats 1304 are equidistantly fixed on the outer side of the rotating seat 1302. Two connecting rods 1305 are fixed on both sides of the lower end face of the connecting seats 1304 respectively. A lower end seat 1305 is sleeved on the surface of the connecting rod 1305. 6. A connecting nut 1307 is threaded onto the lower end face of the connecting rod 1305. A liquid cylinder 1308 is movably connected to the lower end face of the connecting seat 1304. A feeding port 1309 is fitted onto the front end face of the liquid cylinder 1308. A sealing plug 1310 is snapped onto the front end face of the feeding port 1309. A duckbill valve 1311 is installed on the lower end face of the liquid cylinder 1308. A telescopic cylinder 1312 is installed on the upper end face of the connecting seat 1304. A pusher plate 1313 is fixed at the telescopic end below the telescopic cylinder 1312. To achieve precise alignment between the liquid cylinder 1308 and the feed port 1209, an angle encoder or photoelectric positioning sensor is installed on the lower end face of the rotating base 1302 or the inner wall of the support cylinder 1301. The third motor 1303 is a servo motor or a stepper motor, which is electrically connected to the angle encoder and the main control system. Closed-loop control ensures that any liquid cylinder 1308 can be accurately rotated to the top of the feed port 1209. A pop-up mechanical positioning pin can be installed on the C-shaped plate 1202 or the mounting base 1201. When the rotating base 1302 reaches the predetermined position, it is inserted into the positioning hole at its bottom to achieve mechanical locking. The outer diameter of the pusher plate 1313 is precisely matched with the inner diameter of the liquid cylinder 1308 to form a sliding seal. The telescopic cylinder 1312 is driven by a servo motor or a stepper motor, and its extension stroke is precisely programmed and controlled by the control system. When a specific liquid needs to be added, the rotating seat 1302, driven by the third motor 1303, rotates the corresponding liquid cylinder 1308 to directly above the feeding port 1209. Then, the telescopic cylinder 1312 pushes the pusher plate 1313 down a predetermined stroke, pressing a quantitative amount of liquid into the feeding port 1209 through the duckbill valve 1311 at the bottom. The stroke of the pusher plate 1313 is linearly related to the volume of the discharged liquid, thereby achieving high-precision volumetric metering. The solid material proportioning component 14 includes a loss-in-weight scale 1401 fixed to the upper surface of an arc-shaped support plate 11. A lifting frame 1402 is fixed to the upper surface of the loss-in-weight scale 1401, and a solid material cylinder 1403 is fixed to the upper surface of the lifting frame 1402. The solid material cylinder 1403 has slots 1404 on both sides of its upper surface. An annular support 1405 is fitted inside the solid material cylinder 1403, and hanging ears 1406 are fixed to both sides of the annular support 1405. An elastic telescopic rod 1407 is installed on the upper end face of the annular support 1405, and a screen 1408 is fixed on the upper end face of the elastic telescopic rod 1407. A discharge hopper 1409 is fixed on the lower end face of the material cylinder 1403. A feeding pipe 1410 is fixed on the lower end face of the discharge hopper 1409, and a feeding screw 1411 is rotatably installed in the inner cavity of the feeding pipe 1410. A fourth motor 1412, which is connected to the feeding screw 1411, is installed at one end of the feeding pipe 1410. To prevent solid material from remaining in the feed pipe 1410 and to ensure the sealing of the mixing process, a pneumatic or electric butterfly valve is installed at the end outlet of the feed pipe 1410. The butterfly valve opens when the feed screw 1411 is working and closes after feeding is completed, effectively isolating the backflow of steam or odor that may be generated in the mixing tank 2, and working with the loss-in-weight scale 1401 to achieve higher precision batch measurement. The loss-in-weight scale 1401 monitors the total weight of the solid material cylinder 1403, the annular support 1405 and the materials inside in real time. The control system sets the required weight of solid raw materials according to the formula, and then starts the fourth motor 1412 to drive the feeding screw 1411 to rotate. The spiral blades of the feeding screw 1411 push the solid material from the discharge hopper 1409 into the feeding pipe 1410 and finally fall into the mixing tank 2. During this process, the control system reads the weight reduction data of the loss-in-weight scale 1401 in real time. When the reduction value reaches the target value, the fourth motor 1412 is immediately turned off, thereby realizing precise gravity quantification based on the loss-in-weight method. The screen 1408 can vibrate slightly under the support of the elastic telescopic rod 1407, which helps to prevent loose or easily clumping solid raw materials from bridging or clogging at the outlet. The material storage assembly 10 includes an outer shell 1001 fixed to the output end of the material guide pipe 9, a storage tank 1002 fixed inside the outer shell 1001, a heating tube 1003 fixed on the surface of the storage tank 1002, a central control plate 1004 fixed on the front end face of the outer shell 1001, a sealing plate 1005 installed on the upper end face of the outer shell 1001, and a second material guide pump 1006 installed at the other end of the outer shell 1001. The heating element 1003 is connected to a temperature sensor and a PID temperature controller to achieve precise temperature control of the finished aromatherapy liquid in the storage tank 1002. After mixing, the finished fragrance enters the storage tank 1002 through the feed pipe 9 and the power of the first feed pump 8. The heating pipe 1003 is evenly coiled or attached to the outer wall of the storage tank 1002. The temperature control module integrated on the central control board 1004 controls the temperature of the finished product in the tank to prevent the crystallization of high melting point components. When it is necessary to output the finished product for filling, the second feed pump 1006 is started to stably extract the finished product from the storage tank 1002 and transport it to the downstream packaging equipment through the connecting flange at its output end.

[0020] In this embodiment, the output end of the first motor 6 is magnetically connected to the magnetic stirring blade 5 to drive the magnetic stirring blade 5 to rotate. The magnetic connection is specifically achieved through a magnetic coupler: the output shaft of the first motor 6 is connected to an external permanent magnet rotor, the bottom of the mixing tank 2 is sealed with an isolation sleeve, and the rotating shaft of the magnetic stirring blade 5 is connected to the internal permanent magnet rotor. When the motor rotates, the magnetic lines of force penetrate the isolation sleeve, driving the internal rotor and the magnetic stirring blade 5 to rotate synchronously without contact. This structure completely eliminates the risk of shaft seal leakage and is especially suitable for stirring highly volatile, easily oxidized, or high-purity aromatherapy raw materials, ensuring the airtight integrity of the mixing process.

[0021] In this embodiment, the T-shaped slider 1207 is fixedly connected to the rear end face of the lifting seat 1204, and the lifting seat 1204 forms a slidable structure through the T-shaped slider 1207 and the slide groove 1206. The mating surfaces of the T-shaped slider 1207 and the slide groove 1206 are precision machined, and linear bearings or wear-resistant grease can be optionally installed to ensure that the lifting seat 1204 drives the end cover 1208 to slide smoothly and quietly in the vertical direction without shaking. The guiding function of this sliding structure ensures that the end cover 1208 always maintains precise alignment with the opening of the mixing tank 2 during the process of falling to close or rising to open, preventing wear of the sealing ring or poor sealing caused by misalignment.

[0022] In this embodiment, the end cap 1208 is located above the mixing tank 2, and the end cap 1208 and the central axis of the mixing tank 2 are arranged in the same vertical line. This coaxial vertical line setting ensures that when the end cover 1208 is lowered and closed, its center is completely aligned with the center of the mixing tank 2. This not only allows the sealing ring embedded on the lower end face of the end cover 1208 to be evenly pressed against the flange plane of the tank opening, achieving a uniform circumferential seal, but also ensures that the feed port 1209, the liquid proportioning component 13, and the feed pipe 1410 outlet of the solid proportioning component 14 fixed above the end cover 1208 can be accurately aligned with the central area inside the mixing tank 2. This facilitates the rapid entrainment of raw materials into the vortex generated by the magnetic stirring blades 5 after input, thereby improving the initial mixing efficiency.

[0023] In this embodiment, the output end of the third motor 1303 passes through the support cylinder 1301 and is connected to the rotating seat 1302 for driving the rotating seat 1302 to rotate. The third motor 1303 is preferably a servo motor or a stepper motor. It is connected to the rotating shaft of the rotating seat 1302 through a reduction mechanism. The control system can precisely control the rotation angle of the motor, thereby driving the rotating seat 1302 and the multiple liquid cylinders 1308 distributed in a ring on it to rotate in an indexing manner, accurately stopping any designated liquid cylinder 1308 at the work position directly above the feed port 1209. The rotation positioning accuracy directly affects the reliability of raw material addition.

[0024] In this embodiment, the pusher plate 1313 is located in the inner cavity of the liquid cylinder 1308, and the duckbill valve 1311 is located above the feed port 1209. Driven by the telescopic cylinder 1312, the pusher plate 1313 moves like a piston inside the liquid cylinder 1308. When the liquid cylinder 1308 rotates to the working position, the telescopic cylinder 1312 pushes the pusher plate 1313 down, squeezing the liquid in the cylinder from the bottom, forcing the elastic valve flap of the duckbill valve 1311 to open, and the liquid flows into the feed port 1209 below. When the pusher plate 1313 returns or stops applying pressure, the duckbill valve 1311 closes by itself due to its elasticity and the gravity of the liquid, forming a one-way check valve, which effectively prevents the steam, liquid or cross-contamination in the mixing tank 2 from flowing back into the upstream liquid cylinder 1308.

[0025] In this embodiment, the lower end seat 1306 is sleeved on the surface of the duckbill valve 1311, and the lower end seat 1306 is movably connected to the lower end face of the liquid cylinder 1308. The liquid cylinder 1308 forms an assemblable structure through the lower end seat 1306 and the connecting seat 1304. The assemblable structure is as follows: the lower outer edge of the liquid cylinder 1308 is designed with a shoulder or thread, which is fastened to the lower end seat 1306. The duckbill valve 1311 is clamped or screwed to this connection. The upper end of the lower end seat 1306 is suspended and fixed below the connecting seat 1304 by the connecting rod 1305 and the connecting nut 1307. This design allows the entire liquid cylinder 1308 unit to be used as a whole module. It can be quickly removed from the rotating seat 1302 by loosening the connecting nut 1307, which is convenient for cleaning, changing raw materials or maintenance, and realizes modular management.

[0026] In this embodiment, the hanging ear 1406 is sleeved with the inner cavity of the slot 1404, and the annular support 1405 forms an assemblable structure through the hanging ear 1406, the slot 1404 and the solid cylinder 1403. The annular support 1405 is suspended in the slots 1404 on the inner wall of the solid material cylinder 1403 by the hanging ears 1406 on both sides. This suspended assembly structure keeps the annular support 1405 suspended in the solid material cylinder 1403, with sufficient gap between its bottom and the inlet of the discharge hopper 1409 to ensure that the material can fall smoothly under the action of gravity. At the same time, this structure allows the annular support 1405 together with the screen 1408 to be lifted out from above the solid material cylinder 1403 for thorough cleaning or screen replacement.

[0027] In this embodiment, the feeding pipe 1410 is connected to the inner cavity of the mixing tank 2, and the output end of the discharge hopper 1409 is connected to the inner cavity of the feeding pipe 1410. The feeding pipe 1410 penetrates the side wall of the mixing tank 2 at a certain angle, and its outlet extends into the tank space. The discharge hopper 1409 serves as the conical outlet of the solid material cylinder 1403 and is tightly connected to the inlet of the feeding pipe 1410. This connection ensures that the solid powder or granules metered by the feeding screw 1411 can directly and unobstructedly enter the feeding pipe 1410 through the discharge hopper 1409 and be continuously and stably transported into the mixing tank 2 under the push of the screw, thus avoiding dust or spillage of materials during the transfer process.

[0028] In this embodiment, the output end of the feed pipe 9 passes through the outer shell 1001 and is connected to the inner cavity of the storage tank 1002. The input end of the second feed pump 1006 passes through the outer shell 1001 and is connected to the inner cavity of the storage tank 1002. The output end of the second feed pump 1006 is equipped with a connecting flange for connection and assembly with external equipment. The feed pipe 9 serves as the finished product conveying pipeline, with its output end extending into the storage tank 1002 through a sealed joint. The input end of the second feed pump 1006 extends deep into the bottom of the storage tank 1002 to ensure that the finished product inside the tank can be extracted as completely as possible. The connection flange at the output end is a standard interface, which can be quickly connected to the pipelines of downstream filling machines, dispensing heads, or other storage tanks. This achieves a flexible and closed connection between this device and subsequent production processes, ensuring the material sealing throughout the entire process from mixing to filling.

[0029] In this embodiment, the working principle of the high-speed aromatherapy filling and molding equipment is as follows: The entire workflow begins with raw material preparation and parameter setting. The operator inputs the formula program for a specific aromatherapy product through the central control board 1004. This program includes the precise proportions of various liquid and solid raw materials, mixing order, stirring speed and time, and mixing temperature, among other process parameters. During the preparation stage, liquid raw materials are injected into the corresponding liquid cylinder 1308 through their respective feeding ports 1309 and sealed with sealing plugs 1310. Solid raw materials are placed on the screen 1408 inside the solid cylinder 1403. After the production program is started, the second motor 1205 starts first, driving the lead screw 1203 to rotate, which in turn drives the lifting mechanism precisely guided by the T-shaped slider 1207 and the chute 1206. The lowering seat 1204 and its front end cap 1208 descend smoothly until the sealing ring at the lower edge of the end cap 1208 is tightly pressed against the opening of the mixing tank 2, forming a sealed mixing reaction space. Subsequently, the liquid proportioning component 13 starts to work. The third motor 1303 drives the rotating seat 1302 to rotate according to the command. Using sensors such as angle encoders, the liquid cylinder 1308 containing the first required liquid raw material is precisely rotated to a position perpendicularly aligned with the feeding port 1209 on the end cap 1208. At this time, the telescopic cylinder 1312 above the liquid cylinder 1308 is activated, pushing the pusher plate 1313, which is precisely matched with the inner wall of the liquid cylinder 1308, to move a preset stroke to squeeze out a certain amount of liquid. The pressure of the squeezed liquid forces the liquid cylinder to... The duckbill valve 1311 at the bottom of 1308 opens, and liquid flows into the mixing tank 2 through the feed port 1209. When the pushing stops, the duckbill valve 1311 automatically closes to prevent backflow. The rotating seat 1302 rotates each liquid cylinder 1308 to the working position according to the program, repeating the above quantitative discharge process until all liquid raw materials have been added. After that, when adding solid raw materials, the solid material proportioning component 14 is activated. The control system sends a command to the fourth motor 1412 based on the total weight data of the solid material cylinder 1403 monitored in real time by the loss-in-weight scale 1401, driving the feeding screw 1411 to rotate. The feeding screw 1411 stably pushes the solid raw materials from the discharge hopper 1409 into the feeding pipe 1410, and then into the mixing tank 2. During the conveying process, the loss-in-weight scale 1401 continuously monitors the process. The weight loss is measured, and when the loss value reaches the target set in the formula, the fourth motor 1412 immediately stops, achieving high-precision gravity quantitative feeding. The butterfly valve at the end of the feeding pipe 1410 can be closed after feeding to ensure a seal. During or after the entire feeding process, the first motor 6 starts, and its internal magnetic coupling drive unit drives the external permanent magnet to rotate. Through magnetic force penetrating the isolation sleeve at the bottom of the mixing tank 2, the magnetic stirring blades 5 inside the tank are driven to rotate synchronously at high speed without contact, performing thorough and efficient shearing and mixing of the added liquid and solid raw materials. At the same time, the temperature can be controlled by the jacket of the mixing tank 2. The operator can monitor the mixing process through the observation window 3 with capacity scale. After the mixing program is completed, the discharge valve 7 opens, and the first feed pump 8 starts.The uniformly mixed finished fragrance is pumped into the storage tank 1002 through the feed pipe 9. The heating element 1003 on the outer wall of the storage tank 1002 maintains a constant temperature for the finished product under the regulation of a temperature sensor and a PID controller. When it is time to output the finished product, the second feed pump 1006 starts, conveying the finished fragrance through its output flange to the downstream filling equipment, completing a fully automated process from precise proportioning and efficient mixing to temporary storage and output of the finished product.

[0030] The above provides a detailed description of the automated raw material proportioning and stirring device for aromatherapy preparation provided by this invention. Specific embodiments have been used to illustrate the principles and implementation methods of this invention. These embodiments are merely illustrative and are intended to aid in understanding the method and core concepts of this invention. It should be noted that those skilled in the art can make various improvements and modifications to this invention without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims of this invention.

Claims

1. An automated raw material proportioning and mixing device for aromatherapy preparation, characterized in that, include: A support frame (1) is provided, inside which a mixing tank (2) is fixed. An observation window (3) is fitted on the front end face of the mixing tank (2), and a main material input pipe (4) is fitted on the front end face of the mixing tank (2). A magnetic stirring blade (5) is rotatably installed at the lower end of the inner cavity of the mixing tank (2). A first motor (6) is installed on the lower end face of the mixing tank (2). A discharge valve (7) is installed on the lower end face of the mixing tank (2), and a first guide pump (8) is installed at the other end of the discharge valve (7). A guide pipe (9) is installed at the output end of the first guide pump (8), and a material storage assembly (10) is installed at the other end of the guide pipe (9). An arc-shaped support plate (11) is fixed on the upper end face of the support frame (1). The cover plate assembly (12) includes an assembly base (1201) installed on the upper end face of the arc-shaped support plate (11). A C-shaped plate (1202) is fixed on the upper end face of the assembly base (1201). A lead screw (1203) is rotatably installed in the inner cavity of the C-shaped plate (1202). A lifting seat (1204) is meshed with the surface of the lead screw (1203). A second motor (1205) is fixed on the upper end face of the C-shaped plate (1202). A sliding groove (1206) is opened on one side of the inner wall of the C-shaped plate (1202). A T-shaped slider (1207) is slidably sleeved in the inner cavity of the sliding groove (1206). An end cover (1208) is installed on the front end face of the lifting seat (1204). A feeding port (1209) is fitted inside the end cover (1208). The liquid mixing assembly (13) includes a support cylinder (1301) fixed to the upper surface of the end cap (1208). A rotating seat (1302) is rotatably mounted on the upper surface of the support cylinder (1301) via a bearing. A third motor (1303) is mounted on the upper end of the inner wall of the support cylinder (1301). Multiple connecting seats (1304) are fixed at equal intervals on the outer side of the rotating seat (1302). Two connecting rods (1305) are fixed on both sides of the lower end face of the connecting seat (1304). A lower end seat (1306) is sleeved on the surface of the connecting rod (1305). The lower end face of the connecting rod (1305) is threaded with a connecting nut (1307), the lower end face of the connecting seat (1304) is movably connected with a liquid cylinder (1308), the front end face of the liquid cylinder (1308) is fitted with a feeding port (1309), and the front end face of the feeding port (1309) is snapped with a sealing plug (1310). The lower end face of the liquid cylinder (1308) is equipped with a duckbill valve (1311), the upper end face of the connecting seat (1304) is equipped with a telescopic cylinder (1312), and the telescopic end of the telescopic cylinder (1312) is fixed with a pusher plate (1313). Solid material proportioning component (14), the solid material proportioning component (14) includes a loss-in-weight scale (1401) fixed to the upper end face of the arc-shaped support plate (11), a lifting frame (1402) fixed to the upper end face of the loss-in-weight scale (1401), a solid material cylinder (1403) fixed to the upper end face of the lifting frame (1402), slots (1404) are provided on both sides of the upper end face of the solid material cylinder (1403), an annular support (1405) is sleeved in the inner cavity of the solid material cylinder (1403), and hanging ears (1406) are fixed on both sides of the annular support (1405). An elastic telescopic rod (1407) is installed on the upper end face of the annular support (1405), and a screen (1408) is fixed on the upper end face of the elastic telescopic rod (1407). A discharge hopper (1409) is fixed on the lower end face of the material cylinder (1403), and a feeding pipe (1410) is fixed on the lower end face of the discharge hopper (1409). A feeding screw (1411) is rotatably installed in the inner cavity of the feeding pipe (1410), and a fourth motor (1412) is installed at one end of the feeding pipe (1410) and is connected to the feeding screw (1411) in a transmission. The material storage assembly (10) includes an outer shell (1001) fixed to the output end of the feed pipe (9), a storage tank (1002) fixed inside the outer shell (1001), a heating tube (1003) fixed on the surface of the storage tank (1002), a central control plate (1004) fixed on the front end face of the outer shell (1001), a sealing plate (1005) installed on the upper end face of the outer shell (1001), and a second feed pump (1006) installed on the other end of the outer shell (1001).

2. The automated raw material proportioning and stirring device for aromatherapy preparation according to claim 1, characterized in that, The output end of the first motor (6) is magnetically connected to the magnetic stirring blade (5) to drive the magnetic stirring blade (5) to rotate.

3. The automated raw material proportioning and stirring device for aromatherapy preparation according to claim 1, characterized in that, The T-shaped slider (1207) is fixedly connected to the rear end face of the lifting seat (1204), and the lifting seat (1204) forms a sliding structure through the T-shaped slider (1207) and the slide groove (1206).

4. The automated raw material proportioning and stirring device for aromatherapy preparation according to claim 1, characterized in that, The end cap (1208) is located above the mixing tank (2), and the end cap (1208) is arranged in the same vertical line as the central axis of the mixing tank (2).

5. The automated raw material proportioning and stirring device for aromatherapy preparation according to claim 1, characterized in that, The output end of the third motor (1303) passes through the support cylinder (1301) and is connected to the rotating seat (1302) for driving the rotating seat (1302) to rotate.

6. The automated raw material proportioning and stirring device for aromatherapy preparation according to claim 1, characterized in that, The pusher plate (1313) is located inside the liquid cylinder (1308), and the duckbill valve (1311) is located above the feed port (1209).

7. The automated raw material proportioning and stirring device for aromatherapy preparation according to claim 1, characterized in that, The lower end seat (1306) is sleeved on the surface of the duckbill valve (1311), and the lower end seat (1306) is movably connected to the lower end face of the liquid cylinder (1308). The liquid cylinder (1308) forms an assemblable structure through the lower end seat (1306) and the connecting seat (1304).

8. The automated raw material proportioning and stirring device for aromatherapy preparation according to claim 1, characterized in that, The hanging ear (1406) is sleeved with the inner cavity of the slot (1404), and the annular support (1405) forms an assemblable structure through the hanging ear (1406), the slot (1404) and the solid cylinder (1403).

9. The automated raw material proportioning and stirring device for aromatherapy preparation according to claim 1, characterized in that, The feeding pipe (1410) is connected to the inner cavity of the mixing tank (2), and the output end of the discharge hopper (1409) is connected to the inner cavity of the feeding pipe (1410).

10. The automated raw material proportioning and stirring device for aromatherapy preparation according to claim 1, characterized in that, The output end of the feed pipe (9) passes through the outer shell (1001) and is connected to the inner cavity of the storage tank (1002). The input end of the second feed pump (1006) passes through the outer shell (1001) and is connected to the inner cavity of the storage tank (1002). The output end of the second feed pump (1006) is equipped with a connecting flange for connection and assembly with external equipment.

Images