Powder mixing and packaging device with multi-stage mixing function

Abstract

The application discloses a powder mixing and packaging device with multi-stage mixing functions, and relates to the technical field of packaging devices.The packaging device comprises a feeding mechanism, a premixing mechanism, a stirring mechanism, a packaging mechanism and a detection mechanism.The feeding mechanism and the premixing mechanism are communicated, the premixing mechanism and the stirring mechanism are communicated, the stirring mechanism and the packaging mechanism are communicated, and the premixing mechanism and the detection mechanism are fixedly connected.The feeding mechanism is used for conveying raw material powder from a storage position to the premixing mechanism.The premixing mechanism undertakes the task of raw material primary mixing and auxiliary processing.The stirring mechanism performs all-around mixing and homogenization of the premixed material.The packaging mechanism quantitatively fills and packages the stirred material.The detection mechanism performs real-time detection on the mixing process or the mixture through the fixed connection with the premixing mechanism, so that the monitoring mixing link of the powder processing process is realized, and the product quality and the production efficiency are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of packaging devices, and particularly relates to a powder mixing and packaging device with multi-stage mixing function. BACKGROUND

[0002] With the rapid development of powder processing, food flavoring, pharmaceutical preparation, and new material synthesis industries, the importance of multi-stage mixing and accurate proportioning technology in powder production is increasingly prominent. In order to realize uniform mixing of different particle sizes and different functional powders, and to realize automatic and continuous production under the premise of ensuring quality, powder mixing and packaging equipment is developing towards high-precision control, multi-functional integration, and online detection.

[0003] The existing powder mixing and packaging equipment generally includes a feeding system and a mixing and stirring system, so as to achieve uniform stirring, and the product is transferred by hand and packaged.

[0004] However, the existing technology generally lacks the ability to perform multi-stage particle size screening during the feeding stage, and lacks evaluation and judgment of the mixing effect. The existing mixing equipment mostly only performs quality detection at the final product stage, and lacks real-time judgment of uniformity. Therefore, the technical personnel in the field provide a powder mixing and packaging device with multi-stage mixing function to solve the problems raised in the background. SUMMARY

[0005] The present application aims to provide a powder mixing and packaging device with multi-stage mixing function to solve the problems raised in the prior art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0007] The packaging device includes a feeding mechanism, a premixing mechanism, a stirring mechanism, a packaging mechanism, and a detection mechanism. The feeding mechanism and the premixing mechanism are in communication, the premixing mechanism and the stirring mechanism are in communication, the stirring mechanism and the packaging mechanism are in communication, and the premixing mechanism and the detection mechanism are tightly connected.

[0008] By adopting the above technical scheme, the feeding mechanism is used to transport the raw material powder from the storage position to the premixing mechanism. The premixing mechanism undertakes the task of raw material preliminary mixing and auxiliary processing. The stirring mechanism performs all-around mixing and homogenization of the premixed material. The packaging mechanism performs quantitative filling and packaging of the stirred material. The detection mechanism performs real-time detection of the mixing process or the mixture by being tightly connected with the premixing mechanism. The powder is first transported by the feeding mechanism to the premixing mechanism, where preliminary mixing and necessary pretreatment are completed. Then, the powder enters the stirring mechanism for intensive homogenization, and finally, the packaging mechanism completes the quantitative packaging of the finished product. The detection mechanism collects mixing data in real time during the premixing stage, which is used to judge the mixing effect and uniformity. Thus, the monitoring mixing link of the powder processing process is realized, and the finished product quality and production efficiency are improved.

[0009] Further, the feeding mechanism includes a storage tank, a conveying motor, a conveying tank, a sliding plate, a conveying flexible hose, a spiral conveying rod, a powder conveying pump, a material returning spiral conveyor and a pulverizer. The storage tank is provided with an inlet. The storage tank is provided with a storage cavity. The storage tank is provided with a storage slope. The storage slope is located at the lower end of the storage cavity. The pulverizer is located in the storage tank. The pulverizer is tightly connected with the storage tank. The pulverizer is communicated with the inlet. The pulverizer is located below the inlet. The pulverizer is located above the storage cavity. The conveying tank is communicated with the storage tank. The conveying tank is communicated with the storage cavity. The conveying tank is placed obliquely. The sliding plate is slidingly connected with the conveying tank. The conveying flexible hose is tightly connected with the sliding plate. The conveying motor is tightly connected with the conveying tank. The conveying motor is drivingly connected with the spiral conveying rod. The spiral conveying rod is abuttingly rotated with the conveying tank. The spiral conveying rod is abuttingly rotated with the sliding plate. The powder conveying pump is communicated with the conveying flexible hose. The conveying flexible hose is communicated with the conveying tank. The powder conveying pump is communicated with the premixing mechanism. The material returning spiral conveyor is communicated with the pulverizer. The material returning spiral conveyor is communicated with the conveying tank. The material returning spiral conveyor is located at the upper end of the spiral conveying rod.

[0010] By adopting the above technical scheme, the storage tank serves as a raw material bearing unit. The inlet is arranged on the storage tank to facilitate powder feeding. The storage cavity is arranged in the storage tank to store raw materials. The storage slope is arranged at the bottom of the storage tank to facilitate smooth sliding of the materials into the conveying tank. The pulverizer is located in the storage tank and is tightly connected with the storage tank and communicated with the inlet. The pulverizer is located below the inlet and above the storage cavity to crush the entering powder. The conveying tank is communicated with the storage tank and the storage cavity and is placed obliquely. The spiral conveying rod is abuttingly rotated with the conveying tank and the sliding plate. Under the driving of the conveying motor, the powder is pushed from the storage cavity to the sliding plate. The sliding plate is tightly connected with the conveying flexible hose. The conveying flexible hose is communicated with the conveying tank and the powder conveying pump. The powder conveying pump continuously feeds the materials into the premixing mechanism. The material returning spiral conveyor located at the upper end of the spiral conveying rod is communicated with the pulverizer and the conveying tank to return the materials not meeting the particle size requirement to the pulverizer for re-crushing. The raw materials enter the storage cavity from the inlet, are crushed by the pulverizer, slide into the conveying tank through the storage slope, enter the powder conveying pump through the sliding plate and the conveying flexible hose under the pushing of the spiral conveying rod, and are finally fed to the premixing mechanism. The powder not meeting the particle size requirement is returned to the pulverizer through the material returning spiral conveyor for repeated crushing. The particle size closed-loop control is realized through the material returning circuit to achieve the effects of stable powder feeding, uniform particle size and continuous conveying.

[0011] Further, the feeding mechanism further comprises a filter screen, an electromagnetic block, an elastic member, a magnetic block and a vibrator, the filter screen is fixedly connected with the conveying tank, the filter screen is provided with a plurality of filter holes, the filter holes are provided on the filter screen, the sizes of the filter holes of the plurality of filter screens gradually decrease from top to bottom, the filter hole of the uppermost filter screen has a smaller size than the particle size of the fluorescent agent, the screw conveying rod is provided with a sieve hole, the size of the sieve hole gradually decreases from top to bottom, the electromagnetic block is fixedly connected with the conveying tank, the electromagnetic block is fixedly connected with the elastic member, the elastic member is fixedly connected with the magnetic block, the magnetic block is fixedly connected with the sliding plate, the vibrator is fixedly connected with the sliding plate, and the magnetic poles of the electromagnetic block and the magnetic block repel each other.

[0012] By adopting the above technical scheme, the filter screen is fixedly connected with the conveying tank, is provided with a plurality of layers, and is provided with filter holes on each layer, the filter holes gradually decrease from top to bottom, so that the powder is gradually screened during the falling and conveying process, and it is ensured that the particle size of the powder is smaller than the size of the fluorescent agent; the screw conveying rod is provided with a sieve hole, the size of the sieve hole corresponds to the filter holes of each layer and gradually decreases from top to bottom, and synchronous grading cooperation with the filter screen is achieved. The electromagnetic block is fixedly connected with the conveying tank and the elastic member, and the elastic member is fixedly connected with the magnetic block, the magnetic block is fixedly connected with the sliding plate, a magnetic attraction structure capable of elastic buffering is formed, and the magnetic attraction structure is used for switching the passageway of different sizes of filter screens; the vibrator is fixedly connected with the sliding plate, and the vibrator prevents the accumulation and blockage of the powder during the screening and conveying process through vibration, and assists in improving the screening efficiency. The working process is as follows: the powder is pushed by the screw conveying rod and sequentially passes through the plurality of filter holes and sieve holes, realizes step-by-step particle size separation, and the vibrator provides continuous vibration to ensure uniform falling and flowing of the powder; the mechanism of physical screening and magnetic force control is utilized to realize powder pre-purification and stable feeding, and the particle size and purity of the material entering the subsequent process are effectively controlled, and high-quality raw materials are provided for subsequent premixing and fine mixing.

[0013] Further, the premixing mechanism comprises a fluorescent mixing assembly, a premixing assembly and a separation assembly, the fluorescent mixing assembly is communicated with the powder conveying pump, the premixing assembly is communicated with the fluorescent mixing assembly, the separation assembly is communicated with the premixing assembly, the separation assembly is communicated with the stirring mechanism, and the fluorescent mixing assembly and the premixing assembly are fixedly connected with the detection mechanism.

[0014] By adopting the above technical scheme, the powder first enters the fluorescent mixing assembly and is fully mixed with the fluorescent agent, then enters the premixing assembly and is further homogenized through the action of airflow and gravity, and finally enters the separation assembly to remove oversized particles, unmixed agglomerates or specific impurities, and is sent to the subsequent stirring mechanism for fine mixing. The fluorescent mixing assembly is utilized to realize rapid dispersion of the fluorescent agent and the powder, the premixing assembly is utilized to break the material agglomeration through gas-solid fluidization and a circulation path, and the separation assembly is utilized to remove impurities through mechanical screening or cyclone separation. The powder has high uniformity and purity before entering the fine mixing process, the detection mechanism can monitor and feedback the mixing state in real time, and the quality stability and control accuracy of the entire mixing and packaging process are improved.

[0015] Further, the fluorescent mixing assembly comprises a fluorescent agent tank, an adding pump, an inner cylinder tank, an outer cylinder tank, a universal joint, an electric telescopic rod, a fluorescent mixing motor, a fluorescent mixing frame and a fluorescent mixing rod, the fluorescent agent tank and the adding pump are communicated, the adding pump and the inner cylinder tank are communicated, the powder conveying pump and the inner cylinder tank are communicated, the outer cylinder tank and the fluorescent mixing frame are hinged, the inner cylinder tank and the outer cylinder tank are fixedly connected, the electric telescopic rod and the universal joint are fixedly connected, the universal joint and the outer cylinder tank are fixedly connected, the universal joint and the fluorescent mixing frame are fixedly connected, the fluorescent mixing motor and the fluorescent mixing frame are fixedly connected, the fluorescent mixing motor and the fluorescent mixing rod are in transmission connection, and the inner cylinder tank and the premixing assembly are communicated.

[0016] By adopting the above technical scheme, the fluorescent agent tank is communicated with the adding pump, and the fluorescent agent is quantitatively conveyed to the inner cylinder tank communicated therewith; the inner cylinder tank is communicated with the powder conveying pump at the same time, receives the powder from the feeding link, and realizes the synchronous entry of the two materials; the inner cylinder tank and the outer cylinder tank are fixedly connected to form a sealed mixing cavity, the outer cylinder tank is hinged with the fluorescent mixing frame, and the inclination and angle of the outer cylinder tank can be adjusted under the driving cooperation of the electric telescopic rod and the universal joint, so that the material flow trajectory is optimized. The universal joint is fixedly connected with the outer cylinder tank and the fluorescent mixing frame at the same time, multi-directional angle adjustment is realized; the fluorescent mixing motor is fixedly connected with the fluorescent mixing frame, and is in transmission connection with the fluorescent mixing rod, drives the fluorescent mixing rod to rotate and stir in the inner cylinder tank, so that the powder and the fluorescent agent are rapidly dispersed and fused; the mixed material is communicated with the premixing assembly through the inner cylinder tank outlet, enters the next mixing link, and the electric telescopic rod can adjust the mixing angle in real time according to the material state to eliminate the dead angle. The working principle is to realize the rapid and uniform distribution of the fluorescent agent in the powder by using the comprehensive mode of mechanical stirring, angle adjustment and synchronous feeding of the two materials, so as to provide stable preliminary mixed material conditions for the subsequent secondary mixing and detection of the monochromatic fluorescent agent.

[0017] Further, the premixing assembly comprises a premixing fan, a particle gravity air nozzle, a premixing box and an air valve, the inner cylinder tank and the premixing box are communicated, the premixing fan and the premixing box are fixedly connected, the air valve and the premixing box are fixedly connected, the premixing box and the separation assembly are communicated, the particle gravity air nozzle and the premixing box are fixedly connected, a circulation cavity is arranged on the premixing box, and the circulation cavity is annular.

[0018] By adopting the technical scheme, the inner cylinder tank is in communication with the premixing box, material preliminarily mixed in the fluorescent mixing assembly is introduced into the premixing box; the premixing fan is fastened to the premixing box, and controllable airflow is provided to drive the material to form a circulating flow in the box; the air valve is fastened to the premixing box, and is used for adjusting the airflow and pressure entering or circulating to control the mixing intensity; the particle gravity air nozzle is fastened to the premixing box, and airflow is sprayed to the material layer at a specific angle and speed, so that the powder is uniformly turned under the joint action of gravity and airflow; the premixing box is provided with a ring-shaped circulating cavity, so that the airflow and the material form a closed circulating channel, and the mixing uniformity is improved. After the material enters the premixing box through the inner cylinder tank, the airflow sent by the premixing fan is sprayed into the material pile through the particle gravity air nozzle, so that the powder is suspended and continuously turned, and the airflow returned through the circulating cavity continues to push the material flow; the air valve adjusts the airflow speed and flow, and ensures the mixing effect under different material characteristics. By using the homogenization effect of gas-solid fluidization and the ring-shaped circulating channel, the powder agglomeration state is broken and the mutual blending between different particles is accelerated, and the uniformity and dispersity of the material before entering the separation assembly are significantly improved, and a stable and consistent material basis is provided for subsequent separation and fine mixing links.

[0019] Further, the separation assembly comprises a cyclone separator, an electromagnetic adsorption plate and an intercepting net, the intercepting net and the cyclone separator are fastened, the intercepting net is located above the cyclone separator, the electromagnetic adsorption plate and the cyclone separator are fastened, the intercepting net is used for intercepting fluorescent agents, and the cyclone separator is in communication with the stirring mechanism.

[0020] By adopting the technical scheme, the intercepting net is fastened to the cyclone separator and located above the cyclone separator, and is used for physically intercepting larger particle fluorescent agents before the material enters the cyclone separator, to prevent the larger particle fluorescent agents from entering subsequent processes; the electromagnetic adsorption plate is fastened to the cyclone separator, and magnetic impurities or magnetic fluorescent particles possibly existing in the mixture are adsorbed by using a magnetic field; the cyclone separator is in communication with the stirring mechanism, and in the interior, a centrifugal force generated by high-speed rotating airflow is used to separate the material according to density and particle size, to send fine powder meeting the requirements into the stirring mechanism, and to throw light or large-particle impurities to the wall surface of the cyclone separator and discharge downward. The material first passes through the intercepting net to remove large-particle fluorescent agents, and then enters the cyclone separator to complete the refining separation process, during which the electromagnetic adsorption plate works synchronously to remove magnetic impurities, and finally the purified material enters the stirring mechanism for next step mixing. The magnetic force of the electromagnetic adsorption plate can be adjusted through feedback of a subsequent finished product, so that the residual amount of fluorescent agents and impurities in the finished product is reduced, the stability of subsequent mixing and the purity of finished powder are improved, and the quality consistency of the packaging link is ensured.

[0021] Further, the stirring mechanism comprises a spherical tank, a stirring motor, a lateral motor, a lateral rotating claw and a stirring rod, the spherical tank is fixedly connected with the packaging mechanism, the stirring motor is fixedly connected with the spherical tank, the stirring motor is in transmission connection with the stirring rod, the stirring rod is in a spiral shape, the stirring rod is arranged in an inclined manner, the lateral motor is fixedly connected with the spherical tank, and the lateral motor is in transmission connection with the lateral rotating claw.

[0022] By adopting the above technical scheme, the spherical tank is fixedly connected with the packaging mechanism and serves as a final mixing container of the material; the stirring motor is fixedly connected with the spherical tank and is in transmission connection with the stirring rod through a transmission structure to drive the stirring rod to rotate in the spherical tank; the stirring rod is in a spiral shape and is arranged in an inclined manner, so that the material is lifted and turned along a spiral path during rotation, thereby promoting longitudinal mixing; the lateral motor is fixedly connected with the spherical tank and is in transmission connection with the lateral rotating claw to drive the rotating claw to produce transverse disturbance to the material during mixing, break the circumferential flow generated due to spiral rotation, and further enhance the homogenization effect. After the material enters the spherical tank from the separation assembly, the stirring motor drives the stirring rod to be turned longitudinally, and the lateral motor synchronously drives the rotating claw to be disturbed transversely, and the two forces are superposed to form a three-dimensional mixing flow field, so as to ensure that the powder reaches high uniformity in a short time. The coupling effect of the inclined spiral stirring and the transverse disturbance breaks the single directionality of the material flow and forms a globally covered mixing track. Therefore, the purposes of short mixing time, high uniformity and few dead angles are achieved, stable and consistent material quality is provided for subsequent packaging, and the consistency of the performance between product batches is ensured.

[0023] Further, the detection mechanism comprises an LED fluorescence excitation lamp group and a spectrum recognition instrument, the inner cylinder tank is made of transparent material, and the detection mechanism is provided with two groups, one group of the LED fluorescence excitation lamp group and the spectrum recognition instrument are fixedly connected with the outer cylinder tank, and the other group of the LED fluorescence excitation lamp group and the spectrum recognition instrument are fixedly connected with the premixing box.

[0024] By adopting the above technical scheme, in the specific embodiment, the fluorescent agent medium component is added with natural or food-grade fluorescent agent (such as riboflavin, chlorophyll derivative, carotene), inert high polymer loaded microsphere matrix, biocompatible magnetic nanoparticle (such as ferroferric oxide), fluorescent stabilizer and particle size control aid, etc. The natural or food-grade fluorescent agent is used to provide a fluorescent tracing signal. The riboflavin (vitamin B2, E101) used is a national permitted food fortifier, has natural fluorescence characteristics, can generate green or yellow-green visible fluorescence under excitation light irradiation, is suitable for powder mixing visual detection, has high safety margin, and is widely used in process analysis and verification in the pharmaceutical, food and environmental protection industries; the natural fluorescent components such as chlorophyll derivative and carotene can expand the fluorescent color range, realize multi-channel and multi-component visual tracing detection requirements; the inert high polymer loaded microsphere (such as polylactic acid PLA or polystyrene PS) is used to coat the fluorescent agent and magnetic particles, provide necessary mechanical stability and thermal stability, and reduce the risk of particle breakage during the mixing process; the biocompatible magnetic nanoparticle (such as ferroferric oxide) is introduced into the inside or surface of the microsphere structure, realizes rapid separation through an electromagnetic adsorption device after mixing, and avoids the residue of the tracer; the fluorescent stabilizer is used to maintain the consistency and antioxidant performance of the fluorescent response, and ensure the constant luminous intensity in the mixing detection process; the particle size control aid is used to control the microsphere size within a controllable range, so that it is significantly different from the target powder particle size range, and the subsequent separation efficiency of the tracer particle is improved. When the material is in the fluorescent mixing assembly stage, the detection mechanism receives the fluorescent signal after the single-color fluorescent agent is mixed with the powder, determines whether the color has been uniformly diffused in the powder, whether there is local color deviation or agglomeration, and thus determines the mixing completion degree of the single-color marker; when the material enters the premixing assembly stage, the detection mechanism detects whether the different color fluorescent markers produce a preset target color change (such as red + green = yellow) after mixing, and analyzes the uniformity of the color change in the overall powder, so as to determine whether two or more powders have been fully mixed. In terms of work flow, the detection mechanism continuously detects the uniformity of the single-color marker in the fluorescent mixing assembly, detects the uniformity of the color change in the premixing assembly, and feeds back the analysis results in real time for adjusting the mixing time, air flow or stirring intensity. The working principle is to use the luminescent characteristics of the fluorescent marker under specific wavelength light and the color superposition rule to realize online visual mixing monitoring in different stages. The effect achieved is that the uniform diffusion of the single marker can be ensured in the initial mixing stage, and the uniform generation of the target color can be ensured in the multi-color mixing stage, thereby significantly improving the controllability of the mixing process and the consistency of the finished product.

[0025] Further, the packaging mechanism includes an electric nozzle, a mechanical hand, a conveying belt and a conveying frame. The electric nozzle is in communication with the spherical tank. The spherical tank is tightly connected with the conveying frame. The mechanical hand is tightly connected with the conveying frame. The conveying belt is tightly connected with the conveying frame.

[0026] By adopting the technical scheme, the electric nozzle is communicated with the spherical tank, is responsible for accurately filling the homogenized material output by the stirring mechanism into the container according to a set amount, the spherical tank is fastened to the conveying frame, rigid support is provided for stable butt joint between the nozzle and the container, the mechanical arm is fastened to the conveying frame, can perform double functions according to process needs, that is, accurately positions the empty container before filling to ensure coaxial butt joint with the nozzle, or directly performs packaging actions (such as pressing, heat sealing or screwing) after filling is completed, and the integrated degree of packaging is improved, the conveying belt is fastened to the conveying frame, is not only used for conveying the filled or packaged container to a subsequent process, but also can accurately position the container below the electric nozzle under cooperation of the control system, and the combination of continuous conveying and fixed-point filling is realized. In the working process, the empty container is positioned below the nozzle by the conveying belt or is directly placed in position by the mechanical arm, the nozzle is opened to complete quantitative feeding and then is closed, the mechanical arm can immediately perform packaging work, the conveying belt sends the finished product container out and sends the next empty container to the nozzle position. The working principle is that the multifunctional positioning capability of the mechanical arm and the conveying belt is used in cooperation with the quantitative control of the electric nozzle to construct a flexible and reconfigurable packaging unit. The achieved effect is that the packaging link can flexibly switch the positioning and packaging modes according to different product shapes and production rhythms, the automation level, filling accuracy and production efficiency are improved, and manual intervention and equipment idle time are reduced.

[0027] The cross section of the conveying tank is in a C-like shape, and the cross section of the sliding plate is in a C-like shape.

[0028] By adopting the technical scheme, the sliding plate is slidably connected with the C-shaped inner cavity of the conveying tank through the C-shaped structure, the conveying flexible hose is switched to different filter screens by the sliding plate, so that the sliding plate is switched by sliding without affecting the rotation of the screw conveying rod.

[0029] Compared with the prior art, the beneficial effects of the present application are:

[0030] The storage tank guides raw materials into a storage cavity through a feeding port, and the particle size is refined by a pulverizer located above the cavity, and the powder slides into a conveying tank along a storage slope, and a spiral conveying rod pushes the powder to a conveying flexible hose under the driving of a conveying motor, and the powder is quantitatively sent into a fluorescent mixing assembly by a powder conveying pump; the fluorescent mixing assembly accurately adds fluorescent agent into an inner cylinder tank through a fluorescent agent tank and an adding pump, and a fluorescent mixing rod is driven by a fluorescent mixing motor to fully stir under the support of an outer cylinder tank, so that the fluorescent agent particles are uniformly dispersed in the single powder. The detection mechanism utilizes the transparent structure of the inner cylinder tank, under the irradiation of the LED fluorescent excitation lamp group, the spectral recognition instrument detects the uniformity of the powder fluorescence emission to judge whether the single powder marking is completed; the qualified material enters the premixing assembly through the inner cylinder tank, mixes with the powder marked with different colors of fluorescent agent, forms a circulating mixing environment through a premixing fan, a particle gravity air nozzle and a circulating cavity, and then observes whether the color changes as expected to judge the mixing uniformity. The closed-loop process ensures the whole process quality control from the feeding screening to the fluorescent marking and the mixing effect verification, realizes the multiple guarantee of particle size screening, marking diffusion and mixing uniformity, and improves the quality consistency and traceability of the packaged powder. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the application;

[0032] Figure 2 It is a schematic diagram of the feeding mechanism structure of the application;

[0033] Figure 3 It is a schematic diagram of the fluorescent mixing assembly structure of the application;

[0034] Figure 4 It is a schematic diagram of the fluorescent mixing rod structure of the application;

[0035] Figure 5 It is a schematic diagram of the premixing assembly structure of the application;

[0036] Figure 6 It is a schematic diagram of the separation assembly structure of the application;

[0037] Figure 7 It is a schematic diagram of the stirring mechanism structure of the application;

[0038] Figure 8 It is a schematic diagram of the packaging mechanism structure of the application;

[0039] Figure 9 It is a schematic diagram of the conveying tank structure of the application.

[0040] In the figure: 1, feeding mechanism; 11, storage tank; 111, feeding port; 112, storage cavity; 113, storage slope; 12, conveying motor; 13, conveying tank; 14, sliding plate; 15, conveying flexible hose; 16, spiral conveying rod; 161, sieve hole; 17, powder conveying pump; 18, return material spiral conveyor; 19, powder mill; 1010, filter screen; 10101, filter hole; 1011, electromagnetic block; 1012, elastic member; 1013, magnetic block; 1014, vibrator; 2, premixing mechanism; 21, fluorescent mixing assembly; 211, fluorescent agent tank; 212, adding pump; 213, inner cylinder tank; 214, outer cylinder tank; 215, universal joint; 216, electric telescopic rod; 217, fluorescent mixing motor; 218, fluorescent mixing frame; 219, fluorescent mixing rod; 22, premixing assembly; 221, premixing fan; 222, particle gravity air nozzle; 223, premixing box; 2231, circulating cavity; 224, air valve; 23, separation assembly; 231, cyclone separator; 232, electromagnetic adsorption plate; 233, interception net; 3, stirring mechanism; 31, spherical tank; 32, stirring motor; 33, lateral motor; 34, lateral rotating claw; 35, stirring rod; 4, packaging mechanism; 41, electric nozzle; 42, manipulator; 43, conveying belt; 44, conveying frame; 5, detection mechanism; 51, LED fluorescent excitation lamp group; 52, optical spectrum identifier. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0042] Please refer to Figure 1 - Figure 9 As shown in the figure, the present application provides a powder mixing and packaging device with multi-stage mixing function technical solution:

[0043] The packaging device comprises a feeding mechanism 1, a premixing mechanism 2, a stirring mechanism 3, a packaging mechanism 4 and a detection mechanism 5. The feeding mechanism 1 and the premixing mechanism 2 are communicated, the premixing mechanism 2 and the stirring mechanism 3 are communicated, the stirring mechanism 3 and the packaging mechanism 4 are communicated, and the premixing mechanism 2 and the detection mechanism 5 are tightly connected.

[0044] By adopting the technical scheme, the feeding mechanism 1 is used to transport the raw material powder from the storage position to the premixing mechanism 2, the premixing mechanism 2 undertakes the task of raw material preliminary mixing and auxiliary processing, the stirring mechanism 3 performs omnibearing mixing and homogenization on the premixed material, the packaging mechanism 4 performs quantitative filling and packaging on the stirred material, the detection mechanism 5 is tightly connected with the premixing mechanism 2 to perform real-time detection on the mixing process or the mixture, the powder is first transported to the premixing mechanism 2 through the feeding mechanism 1, preliminary mixing and necessary pretreatment are completed here, then enters the stirring mechanism 3 for reinforced homogenization, and finally the packaging mechanism 4 completes the quantitative packaging of the finished product; the detection mechanism 5 collects mixing data in real time in the premixing stage, which is used to judge the mixing effect and uniformity. Thus, the monitoring and mixing link of the powder processing process is realized, and the product quality and production efficiency are improved.

[0045] Further, the feeding mechanism 1 comprises a storage tank 11, a conveying motor 12, a conveying tank 13, a sliding plate 14, a conveying flexible hose 15, a spiral conveying rod 16, a powder conveying pump 17, a return spiral conveyor 18 and a powder mill 19. The storage tank 11 is provided with a feeding port 111, the storage tank 11 is provided with a storage cavity 112, the storage tank 11 is provided with a storage inclined surface 113, the storage inclined surface 113 is located at the lower end of the storage cavity 112, the powder mill 19 is located in the storage tank 11, the powder mill 19 is tightly connected with the storage tank 11, the powder mill 19 is communicated with the feeding port 111, the powder mill 19 is located below the feeding port 111, the powder mill 19 is located above the storage cavity 112, the conveying tank 13 is communicated with the storage tank 11, the conveying tank 13 is communicated with the storage cavity 112, the conveying tank 13 is placed obliquely, the sliding plate 14 is slidingly connected with the conveying tank 13, the conveying flexible hose 15 is tightly connected with the sliding plate 14, the conveying motor 12 is tightly connected with the conveying tank 13, the conveying motor 12 is drivingly connected with the spiral conveying rod 16, the spiral conveying rod 16 is abutted and rotated with the conveying tank 13, the spiral conveying rod 16 is abutted and rotated with the sliding plate 14, the powder conveying pump 17 is communicated with the conveying flexible hose 15, the conveying flexible hose 15 is communicated with the conveying tank 13, the powder conveying pump 17 is communicated with the premixing mechanism 2, the return spiral conveyor 18 is communicated with the powder mill 19, the return spiral conveyor 18 is communicated with the conveying tank 13, and the return spiral conveyor 18 is located at the upper end of the spiral conveying rod 16.

[0046] By adopting the technical scheme, the storage tank 11 serves as a raw material bearing unit, is provided with an inlet 111 at the top for facilitating powder feeding, is internally provided with a storage cavity 112 for storing raw materials, and is provided with a storage slope 113 at the bottom for facilitating smooth sliding of the materials to the inlet of the conveying tank 13; the grinding mill 19 is located in the storage tank 11 and is tightly connected with the storage tank 11 and communicates with the inlet 111, and is located below the inlet 111 and above the storage cavity 112, and performs crushing processing on the entering powder. The conveying tank 13 communicates with the storage tank 11 and the storage cavity 112 and is placed obliquely, and is internally abutted and rotated by the screw conveying rod 16 and the conveying tank 13, and is abutted and rotated by the sliding plate 14, and under the driving of the conveying motor 12, pushes the powder from the storage cavity 112 to the end of the sliding plate 14; the sliding plate 14 is tightly connected with the conveying telescopic hose 15, the conveying telescopic hose 15 communicates with the conveying tank 13 and communicates with the powder conveying pump 17, and the powder conveying pump 17 continuously feeds the materials into the premixing mechanism 2. The back feeding screw conveyor 18 located at the upper end of the screw conveying rod 16 communicates with the grinding mill 19 and the conveying tank 13, and is used for feeding the materials not meeting the particle size requirement back to the grinding mill 19 for re-crushing. The raw materials enter the storage cavity 112 from the inlet 111, slide down the storage slope 113, enter the grinding mill 19 for crushing, and then enter the conveying tank 13, and under the pushing of the screw conveying rod 16, enter the powder conveying pump 17 through the sliding plate 14 and the conveying telescopic hose 15, and are finally fed to the premixing mechanism 2; the powder not meeting the particle size requirement is fed back to the grinding mill 19 through the back feeding screw conveyor 18 for repeated crushing. The particle size closed loop control is realized through the back feeding circuit, and the effects of stable powder feeding, uniform particle size and continuous conveying are achieved.

[0047] Further, the feeding mechanism 1 further comprises a filter screen 1010, an electromagnetic block 1011, an elastic member 1012, a magnetic block 1013 and a vibrator 1014, the filter screen 1010 is tightly connected with the conveying tank 13, the filter screen 1010 is provided with a plurality of filter holes 10101, the sizes of the filter holes 10101 of the plurality of filter screens 1010 from top to bottom are gradually reduced, the filter hole 10101 of the uppermost filter screen 1010 has a smaller size than the particle size of the fluorescent agent particles, the screw conveying rod 16 is provided with a sieve hole 161, the sizes of the sieve hole 161 from top to bottom are gradually reduced, the electromagnetic block 1011 is tightly connected with the conveying tank 13, the electromagnetic block 1011 is tightly connected with the elastic member 1012, the elastic member 1012 is tightly connected with the magnetic block 1013, the magnetic block 1013 is tightly connected with the sliding plate 14, the vibrator 1014 is tightly connected with the sliding plate 14, and the magnetic poles of the electromagnetic block 1011 and the magnetic block 1013 repel each other.

[0048] By adopting the above technical scheme, the filter screen 1010 is tightly connected with the conveying tank 13, is provided with a plurality of layers, and each layer of the filter screen 1010 is provided with filter holes 10101, the filter holes 10101 are sequentially reduced from top to bottom, the powder is gradually screened in the falling conveying process, and it is ensured that the particle size of the powder particles is smaller than the particle size of the fluorescent agent; the sieve holes 161 are provided on the screw conveying rod 16, the size of the sieve holes 161 corresponds to each layer of the filter holes 10101 and is sequentially reduced from top to bottom, and the synchronous staged cooperation with the filter screen 1010 is realized. The electromagnetic block 1011 is tightly connected with the conveying tank 13, is tightly connected with the elastic element 1012, the elastic element 1012 is tightly connected with the magnetic block 1013, the magnetic block 1013 is tightly connected with the sliding plate 14, a magnetic attraction structure capable of elastic buffering is formed, and the magnetic attraction structure is used for switching the passageway of different sizes of the filter screen 1010; the vibrator 1014 is tightly connected with the sliding plate 14, the accumulation and blockage of the powder in the screening and conveying process are prevented through the vibration effect, and the screening efficiency is assisted to be improved. The working process is as follows: the powder is sequentially passed through the plurality of layers of filter holes 10101 and sieve holes 161 under the pushing of the screw conveying rod 16, the gradual particle size separation is realized, the vibrator 1014 provides continuous vibration to ensure that the powder falls and flows uniformly; the powder pre-purification and stable feeding are realized by using the mechanism of physical screening and magnetic force control, the effect of effectively controlling the particle size and purity of the material entering the subsequent process is achieved, high-quality raw material basis is provided for subsequent premixing and fine mixing, and the quality of the raw material is improved.

[0049] Further, the premixing mechanism 2 includes a fluorescent mixing assembly 21, a premixing assembly 22 and a separation assembly 23, the fluorescent mixing assembly 21 and the powder conveying pump 17 are communicated, the premixing assembly 22 and the fluorescent mixing assembly 21 are communicated, the separation assembly 23 and the premixing assembly 22 are communicated, the separation assembly 23 and the stirring mechanism 3 are communicated, and the fluorescent mixing assembly 21 and the premixing assembly 22 are tightly connected with the detection mechanism 5.

[0050] By adopting the above technical scheme, the powder first enters the fluorescent mixing assembly 21 and is fully mixed with the fluorescent agent, then enters the premixing assembly 22 and is further homogenized through the action of airflow and gravity, finally enters the separation assembly 23 to remove oversized particles, unevenly mixed agglomerates or specific impurities, and is sent to the subsequent stirring mechanism 3 for fine mixing. The fluorescent mixing assembly 21 is used to realize the rapid dispersion of the quantitative fluorescent agent and the powder, the premixing assembly 22 breaks the material agglomeration through gas-solid fluidization and a circulation path, and the separation assembly 23 removes impurities by mechanical screening or cyclone separation. The effect achieved is that the powder has high uniformity and purity before entering the fine mixing process, the detection mechanism 5 can monitor and feedback the mixing state in real time, and thus the quality stability and control accuracy of the whole mixing and packaging process are improved.

[0051] Further, the fluorescent mixing assembly 21 comprises a fluorescent agent tank 211, an adding pump 212, an inner cylinder tank 213, an outer cylinder tank 214, a universal joint 215, an electric telescopic rod 216, a fluorescent mixing motor 217, a fluorescent mixing frame 218 and a fluorescent mixing rod 219, the fluorescent agent tank 211 and the adding pump 212 are communicated, the adding pump 212 and the inner cylinder tank 213 are communicated, the powder conveying pump 17 and the inner cylinder tank 213 are communicated, the outer cylinder tank 214 and the fluorescent mixing frame 218 are hinged, the inner cylinder tank 213 and the outer cylinder tank 214 are fixedly connected, the electric telescopic rod 216 and the universal joint 215 are fixedly connected, the universal joint 215 and the outer cylinder tank 214 are fixedly connected, the universal joint 215 and the fluorescent mixing frame 218 are fixedly connected, the fluorescent mixing motor 217 and the fluorescent mixing frame 218 are fixedly connected, the fluorescent mixing motor 217 and the fluorescent mixing rod 219 are drivingly connected, and the inner cylinder tank 213 and the premixing assembly 22 are communicated.

[0052] By adopting the above technical scheme, the fluorescent agent tank 211 is communicated with the adding pump 212, so that the fluorescent agent is quantitatively conveyed to the inner cylinder tank 213 communicated therewith; the inner cylinder tank 213 is communicated with the powder conveying pump 17 at the same time, so as to receive the powder from the feeding link, and realize the synchronous entering of the two materials; the inner cylinder tank 213 is fixedly connected with the outer cylinder tank 214 to form a sealed mixing cavity, the outer cylinder tank 214 is hinged with the fluorescent mixing frame 218, and the inclination and angle of the outer cylinder tank 214 can be adjusted under the driving cooperation of the electric telescopic rod 216 and the universal joint 215, so as to optimize the material flow trajectory. The universal joint 215 is fixedly connected with the outer cylinder tank 214 and the fluorescent mixing frame 218 at the same time, so as to realize the multidirectional angle adjustment; the fluorescent mixing motor 217 is fixedly connected with the fluorescent mixing frame 218, and is drivingly connected with the fluorescent mixing rod 219, so as to drive the fluorescent mixing rod 219 to rotate and stir in the inner cylinder tank 213, so that the powder and the fluorescent agent are rapidly dispersed and fused; the mixed material is communicated with the premixing assembly 22 through the outlet of the inner cylinder tank 213, and enters the next mixing link, and the electric telescopic rod 216 can adjust the mixing angle in real time according to the material state to eliminate the dead angle. The working principle thereof is to realize the rapid and uniform distribution of the fluorescent agent in the powder by using the comprehensive mode of mechanical stirring, angle adjustment and synchronous feeding of the two materials, so as to provide stable preliminary mixed material conditions for the subsequent secondary mixing and detection of the monochromatic fluorescent agent.

[0053] Further, the premixing assembly 22 comprises a premixing fan 221, a particle gravity air nozzle 222, a premixing box 223 and an air valve 224, the inner cylinder tank 213 and the premixing box 223 are communicated, the premixing fan 221 and the premixing box 223 are fixedly connected, the air valve 224 and the premixing box 223 are fixedly connected, the premixing box 223 and the separation assembly 23 are communicated, the particle gravity air nozzle 222 and the premixing box 223 are fixedly connected, and the premixing box 223 is provided with a circulation cavity 2231, and the circulation cavity 2231 is annular.

[0054] By adopting the above technical scheme, the inner cylinder tank 213 is in communication with the premixing box 223, the material preliminarily mixed in the fluorescent mixing assembly 21 is introduced into the premixing box 223; the premixing fan 221 is in fastening connection with the premixing box 223, and controllable airflow is provided to drive the material to form a circulating flow in the box; the air valve 224 is in fastening connection with the premixing box 223, and is used for adjusting the airflow and pressure entering or circulating to realize control of the mixing intensity; the particle gravity air nozzle 222 is in fastening connection with the premixing box 223, airflow is sprayed to the material layer at a specific angle and speed, and the powder is uniformly turned under the joint action of gravity and airflow; the premixing box 223 is provided with a ring-shaped circulating cavity 2231, so that the airflow and the material form a closed circulating channel, and the mixing uniformity is improved. After the material enters the premixing box 223 through the inner cylinder tank 213, the airflow sent by the premixing fan 221 is sprayed into the inside of the material pile through the particle gravity air nozzle 222, so that the powder is suspended and continuously turned, and the airflow returned through the circulating cavity 2231 continues to push the material to flow; the air valve 224 adjusts the airflow speed and flow, and ensures the mixing effect under different material characteristics. By utilizing the homogenization effect of gas-solid fluidization and the ring-shaped circulating channel, the powder agglomeration state is broken and the mutual blending between different particles is accelerated, and the effect is to significantly improve the uniformity and dispersity of the material before entering the separation assembly 23, and to provide a stable and consistent material basis for subsequent separation and fine mixing links.

[0055] Further, the separation assembly 23 comprises a cyclone separator 231, an electromagnetic adsorption plate 232 and an interception net 233, the interception net 233 and the cyclone separator 231 are in fastening connection, the interception net 233 is located above the cyclone separator 231, the electromagnetic adsorption plate 232 and the cyclone separator 231 are in fastening connection, the interception net 233 is used for intercepting the fluorescent agent, and the cyclone separator 231 is in communication with the stirring mechanism 3.

[0056] By adopting the above technical scheme, the intercepting net 233 is fastened and connected with the cyclone separator 231 and located above the cyclone separator 231, for physically intercepting the larger particle fluorescent agent before the material enters the cyclone separator 231, preventing it from entering the subsequent process; the electromagnetic adsorption plate 232 is fastened and connected with the cyclone separator 231, and uses the magnetic field to adsorb the magnetic impurities or magnetic fluorescent particles that may exist in the mixture; the cyclone separator 231 is communicated with the stirring mechanism 3, and uses the centrifugal force generated by the high-speed rotating airflow in the inside to separate the material according to the density and particle size, sends the fine and qualified powder into the stirring mechanism 3, and throws the light or large particle impurities to the separator wall and discharges downward. The material first passes through the intercepting net 233 to remove the large particle fluorescent agent, and then enters the cyclone separator 231 to complete the fine separation process, during which the electromagnetic adsorption plate 232 works synchronously to remove the magnetic impurities, and finally the purified material enters the stirring mechanism 3 for the next mixing. The magnetic force of the electromagnetic adsorption plate 232 can be adjusted through the feedback of the subsequent finished product, so as to reduce the residue of the fluorescent agent and impurities in the finished product, improve the stability of the subsequent mixing and the purity of the finished powder, and thus ensure the quality consistency of the packaging link.

[0057] Further, the stirring mechanism 3 includes a spherical tank 31, a stirring motor 32, a lateral motor 33, a lateral rotating claw 34 and a stirring rod 35, the spherical tank 31 is fastened and connected with the packaging mechanism 4, the stirring motor 32 is fastened and connected with the spherical tank 31, the stirring motor 32 is in transmission connection with the stirring rod 35, the stirring rod 35 is in a spiral shape, the stirring rod 35 is placed obliquely, the lateral motor 33 is fastened and connected with the spherical tank 31, and the lateral motor 33 is in transmission connection with the lateral rotating claw 34.

[0058] By adopting the above technical scheme, the spherical tank 31 is fastened and connected with the packaging mechanism 4, and serves as the final mixing container of the material; the stirring motor 32 is fastened and connected with the spherical tank 31, and is connected with the stirring rod 35 through a transmission structure, to drive the stirring rod 35 to rotate in the spherical tank 31; the stirring rod 35 is in a spiral shape and is arranged obliquely, so that the material is lifted and turned along a spiral path during rotation, thereby promoting longitudinal mixing; the lateral motor 33 is fastened and connected with the spherical tank 31, and is in transmission connection with the lateral rotating claw 34, to drive the rotating claw to produce lateral disturbance to the material during mixing, break the circumferential flow generated by spiral rotation, and further enhance the homogenization effect. After the material enters the spherical tank 31 from the separation assembly 23, the stirring motor 32 drives the stirring rod 35 to turn longitudinally, and the lateral motor 33 synchronously drives the rotating claw to move laterally, and the two forces are superimposed to form a three-dimensional mixing flow field, to ensure that the powder reaches high uniformity in a short time. The coupling of the oblique spiral stirring and the lateral disturbance breaks the single directionality of the material flow, and forms a globally covered mixing track. Thus, the purposes of short mixing time, high uniformity and few dead angles are achieved, stable and consistent material quality is provided for subsequent packaging, and the consistency of the performance between product batches is ensured.

[0059] Further, the detection mechanism 5 includes an LED fluorescence excitation lamp group 51 and a spectrum recognition instrument 52, the inner cylinder tank 213 is of transparent material, the detection mechanism 5 is provided with two groups, one group of LED fluorescence excitation lamp group 51 and spectrum recognition instrument 52 are tightly connected with the outer cylinder tank 214, and the other group of LED fluorescence excitation lamp group 51 and spectrum recognition instrument 52 are tightly connected with the premixing box 223.

[0060] By adopting the above technical scheme, in the specific embodiment, the fluorescent agent medium component is added with natural or food-grade fluorescent agent (such as riboflavin, chlorophyll derivative, carotene), inert high polymer loaded microsphere matrix, biocompatible magnetic nanoparticle (such as ferroferric oxide), fluorescent stabilizer and particle size control aid, etc. The natural or food-grade fluorescent agent is used to provide a fluorescent tracing signal. The riboflavin (vitamin B2, E101) used is a national permitted food fortifier, has natural fluorescence characteristics, can generate green or yellow-green visible fluorescence under excitation light irradiation, is suitable for visual detection of powder mixing, has a high safety margin, and is widely used in process analysis and verification in the pharmaceutical, food and environmental protection industries; the natural fluorescent components such as chlorophyll derivative and carotene can expand the fluorescent color range, realize multi-channel and multi-component visual tracing detection requirements; the inert high polymer loaded microsphere (such as polylactic acid PLA or polystyrene PS) is used to coat the fluorescent agent and magnetic particles, to provide necessary mechanical stability and thermal stability, and to reduce the risk of particle breakage during the mixing process; the biocompatible magnetic nanoparticle (such as ferroferric oxide) is introduced into the inside or surface of the microsphere structure, to realize its rapid separation through an electromagnetic adsorption device after mixing, and to avoid the residue of the tracer; the fluorescent stabilizer is used to maintain the consistency of the fluorescent response and the antioxidant performance, to ensure the constant luminous intensity during the mixing detection process; and the particle size control aid is used to control the microsphere size within a controllable range, to make it significantly different from the target powder particle size range, and to improve the subsequent separation efficiency of the tracer particles. When the material is in the fluorescent mixing assembly 21 stage, the detection mechanism 5 receives the fluorescent signal after the single-color fluorescent agent is mixed with the powder, determines whether the color has been uniformly diffused in the powder without local color deviation or agglomeration through spectral recognition, and thus determines the mixing completion degree of the single-color label; when the material enters the premixing assembly 22 stage, the detection mechanism 5 detects whether the different-color fluorescently labeled powder produces a preset target color change (such as red + green = yellow) after mixing, and analyzes the uniformity of the color change in the overall powder, to determine whether the two or more powders have been sufficiently mixed. The detection mechanism 5 continuously detects the uniformity of the single-color label in the fluorescent mixing assembly 21, and detects the uniformity of the color change in the premixing assembly 22, and the analysis results are fed back in real time for adjusting the mixing time, air flow or stirring intensity. The working principle is to use the luminescence characteristics of the fluorescent label under specific wavelength light and the color superposition law, to realize online visual mixing monitoring at different stages through spectral recognition technology. The effect achieved is that the uniform diffusion of the single label can be ensured in the initial mixing stage, and the uniform generation of the target color can be ensured in the multi-color mixing stage, thereby significantly improving the controllability of the mixing process and the consistency of the finished product.

[0061] Further, the packaging mechanism 4 comprises an electric nozzle 41, a mechanical arm 42, a conveying belt 43 and a conveying frame 44, the electric nozzle 41 is communicated with the spherical tank 31, the spherical tank 31 is fixedly connected with the conveying frame 44, the mechanical arm 42 is fixedly connected with the conveying frame 44, and the conveying belt 43 is fixedly connected with the conveying frame 44.

[0062] By adopting the technical scheme, the electric nozzle 41 is communicated with the spherical tank 31, is responsible for accurately filling the homogenized material output by the stirring mechanism 3 into the container according to the set amount; the spherical tank 31 is fixedly connected with the conveying frame 44, rigidly supports the stable butt joint between the nozzle and the container; the mechanical arm 42 is fixedly connected with the conveying frame 44, can perform double functions according to the process requirement, that is, accurately positions the empty container before filling to ensure that the empty container is coaxially butted with the nozzle, or directly performs the packaging action (such as pressing the cover, heat sealing or screwing the cover) after the filling is completed, and improves the integration degree of the packaging; the conveying belt 43 is fixedly connected with the conveying frame 44, is not only used for conveying the containers filled or packaged to subsequent processes, but also can accurately position the container below the electric nozzle 41 under the cooperation of the control system, realizes the combination of continuous conveying and point filling. On the working process, the empty container is positioned below the nozzle by the conveying belt 43 or is directly placed in place by the mechanical arm 42, the nozzle is opened to complete the quantitative feeding and then is closed, the mechanical arm 42 can immediately perform the packaging operation, the conveying belt 43 conveys the finished product container out of the nozzle and conveys the next empty container to the nozzle position. The working principle is that the multifunctional positioning ability of the mechanical arm 42 and the conveying belt 43 is combined with the quantitative control of the electric nozzle 41 to construct a flexible and reconfigurable packaging unit. The achieved effect is that the packaging link can flexibly switch the positioning and packaging modes according to different product forms and production rhythms, improves the automation level, the filling accuracy and the production efficiency, and reduces the manual intervention and the idle time of the equipment.

[0063] The conveying tank 13 is in a C-shaped cross section, and the sliding plate 14 is in a C-shaped cross section.

[0064] By adopting the technical scheme, the sliding plate 14 is slidably connected with the C-shaped inner cavity of the conveying tank 13 through the C-shaped structure, and the conveying telescopic hose 15 is switched to different filter screens 1010 through the sliding plate 14, so that the sliding plate 14 is switched without affecting the rotation of the screw conveying rod 16.

[0065] The working principle of the present application is as follows:

[0066] Firstly, the storage, crushing, conveying and grading of raw materials are completed by the feeding mechanism 1. The storage tank 11 receives the powder raw materials through the feeding port 111, the internal storage cavity 112 and the lower end storage slope 113 allow the materials to naturally collect to the inlet of the pulverizer 19, the pulverizer 19 realizes the refinement of the raw materials under the fastening connection with the storage tank 11, and sends the materials into the inclined conveying tank 13. The spiral conveying rod 16 in the conveying tank 13 rotates under the driving of the conveying motor 12, pushes the powder to the end of the sliding plate 14, and is conveyed to the powder conveying pump 17 through the conveying flexible hose 15 fastened with the sliding plate 14, and at the same time, the filter screen 1010 with multiple layers of filter holes 10101 decreasing from top to bottom is arranged at the sliding plate 14, which cooperates with the sieve hole 161 on the spiral conveying rod 16 to realize the control of the particle size of the powder particles. The electromagnetic block 1011, the elastic member 1012 and the magnetic block 1013 on the side of the conveying tank 13 cooperate with the vibrator 1014 to adsorb and strip the metal impurities that may be mixed in the conveying process; the return spiral conveyor 18 sends the screening residues back to the pulverizer 19 for circulating crushing, forming a closed loop feeding. The powder passing through the feeding mechanism 1 enters the premixing mechanism 2, at this time, the set fluorescent agent is injected into the inner cylinder tank 213 through the fluorescent agent tank 211 and the adding pump 212 in the fluorescent mixing assembly 21, and is uniformly stirred by the fluorescent mixing rod 219 driven by the fluorescent mixing motor 217, the outer cylinder tank 214 is hinged with the fluorescent mixing frame 218 and adjusts the angle through the electric telescopic rod 216 and the universal joint 215, realizing multi-directional mixing. The inner cylinder tank 213 is made of transparent material, cooperates with the LED fluorescent excitation lamp group 51 and the spectrum recognition instrument 52, so that the detection mechanism 5 can collect the mixing state in real time, and judge the uniformity through the color change. The mixed materials pass through the pre-mixing assembly 22 under the control of the fan and the air valve 224, pass through the particle gravity air nozzle 222 and the annular circulating cavity 2231 to realize secondary fluidized mixing, and then enter the separation assembly 23, and the fluorescent agent particles and other impurities are removed in turn by the intercepting net 233, the electromagnetic adsorption plate 232 and the cyclone separator 231, and then enter the spherical tank 31 of the stirring mechanism 3, and the three-dimensional disturbance flow field is formed by the screw-shaped stirring rod 35 driven by the stirring motor 32 and the rotating claw driven by the lateral motor 33, to realize the final homogenization. The finished powder is quantitatively filled by the electric nozzle 41 of the packaging mechanism 4, the mechanical hand 42 and the conveying belt 43 complete the positioning and output of the container, and the whole process guarantees the synergistic effect of uniform mixing of the powder, visual detection and impurity removal.

[0067] It will be apparent to those skilled in the art that the application is not limited to the details of the above-exemplified embodiments and that the present application can be implemented in other particular forms without departing from the spirit or essential characteristics of the present application. The embodiments should therefore be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the above description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. No reference signs in the claims should be considered as limiting the scope of the claims with respect to the figures of the patent document.

Claims

1. A powder mixing and packaging apparatus having a multi-stage mixing function, characterized by: The packaging device comprises a feeding mechanism (1), a premixing mechanism (2), a stirring mechanism (3), a packaging mechanism (4) and a detection mechanism (5), the feeding mechanism (1) and the premixing mechanism (2) are communicated, the premixing mechanism (2) and the stirring mechanism (3) are communicated, the stirring mechanism (3) and the packaging mechanism (4) are communicated, and the premixing mechanism (2) and the detection mechanism (5) are fastenedly connected; The premixing mechanism (2) comprises a fluorescent mixing assembly (21), a premixing assembly (22) and a separation assembly (23), the premixing assembly (22) and the fluorescent mixing assembly (21) are communicated, the separation assembly (23) and the premixing assembly (22) are communicated, the separation assembly (23) and the stirring mechanism (3) are communicated, and the fluorescent mixing assembly (21) and the premixing assembly (22) are fastenedly connected with the detection mechanism (5); The feeding mechanism (1) comprises a storage tank (11), a conveying motor (12), a conveying tank (13), a sliding plate (14), a conveying flexible hose (15), a spiral conveying rod (16), a powder conveying pump (17), a material returning spiral conveyor (18) and a powder grinder (19), the storage tank (11) is provided with a feeding port (111), the storage tank (11) is provided with a storage cavity (112), the storage tank (11) is provided with a storage inclined surface (113), the storage inclined surface (113) is located at the lower end of the storage cavity (112), the powder grinder (19) is located in the storage tank (11), the powder grinder (19) and the storage tank (11) are fastenedly connected, the powder grinder (19) and the feeding port (111) are communicated, the powder grinder (19) is located below the feeding port (111), the powder grinder (19) is located above the storage cavity (112), the conveying tank (13) and the storage tank (11) are communicated, the conveying tank (13) and the storage cavity (112) are communicated, the conveying tank (13) is placed obliquely, the sliding plate (14) and the conveying tank (13) are slidingly connected, the conveying flexible hose (15) and the sliding plate (14) are fastenedly connected, the conveying motor (12) and the conveying tank (13) are fastenedly connected, the conveying motor (12) and the spiral conveying rod (16) are drivingly connected, the spiral conveying rod (16) and the conveying tank (13) are abuttingly rotatable, the spiral conveying rod (16) and the sliding plate (14) are abuttingly rotatable, the powder conveying pump (17) and the conveying flexible hose (15) are communicated, the conveying flexible hose (15) and the conveying tank (13) are communicated, the powder conveying pump (17) and the premixing mechanism (2) are communicated, the material returning spiral conveyor (18) and the powder grinder (19) are communicated, the material returning spiral conveyor (18) and the conveying tank (13) are communicated, the material returning spiral conveyor (18) is located at the upper end of the spiral conveying rod (16), and the fluorescent mixing assembly (21) and the powder conveying pump (17) are communicated. The feeding mechanism (1) further comprises a filter screen (1010), an electromagnetic block (1011), an elastic member (1012), a magnetic block (1013) and a vibrator (1014), the filter screen (1010) is fixedly connected with the conveying tank (13), the filter screen (1010) is provided with a plurality of filter holes (10101), the filter holes (10101) of the filter screen (1010) are gradually reduced in size from top to bottom, the filter hole (10101) of the uppermost filter screen (1010) has a smaller diameter than the particle size of the fluorescent agent, the spiral conveying rod (16) is provided with a sieve hole (161), the sieve hole (161) is gradually reduced in size from top to bottom, the electromagnetic block (1011) is fixedly connected with the conveying tank (13), the electromagnetic block (1011) is fixedly connected with the elastic member (1012), the elastic member (1012) is fixedly connected with the magnetic block (1013), the magnetic block (1013) is fixedly connected with the sliding plate (14), the vibrator (1014) is fixedly connected with the sliding plate (14), and the magnetic poles of the electromagnetic block (1011) and the magnetic block (1013) repel each other.

2. The powder mixing and packaging device with multi-stage mixing function according to claim 1, characterized in that: The fluorescent mixing assembly (21) comprises a fluorescent agent tank (211), an adding pump (212), an inner cylinder tank (213), an outer cylinder tank (214), a universal joint (215), an electric telescopic rod (216), a fluorescent mixing motor (217), a fluorescent mixing frame (218) and a fluorescent mixing rod (219), the fluorescent agent tank (211) is communicated with the adding pump (212), the adding pump (212) is communicated with the inner cylinder tank (213), the powder conveying pump (17) is communicated with the inner cylinder tank (213), the outer cylinder tank (214) is hingedly connected with the fluorescent mixing frame (218), the inner cylinder tank (213) is fixedly connected with the outer cylinder tank (214), the electric telescopic rod (216) is fixedly connected with the universal joint (215), the universal joint (215) is fixedly connected with the outer cylinder tank (214), the universal joint (215) is fixedly connected with the fluorescent mixing frame (218), the fluorescent mixing motor (217) is fixedly connected with the fluorescent mixing frame (218), the fluorescent mixing motor (217) is drivingly connected with the fluorescent mixing rod (219), and the inner cylinder tank (213) is communicated with the premixing assembly (22).

3. The powder mixing and packaging device with multi-stage mixing function according to claim 2, characterized in that: The premixing assembly (22) comprises a premixing fan (221), a particle gravity air nozzle (222), a premixing box (223) and an air valve (224), the inner cylinder tank (213) is communicated with the premixing box (223), the premixing fan (221) is fixedly connected with the premixing box (223), the air valve (224) is fixedly connected with the premixing box (223), the premixing box (223) is communicated with the separation assembly (23), the particle gravity air nozzle (222) is fixedly connected with the premixing box (223), the premixing box (223) is provided with a circulation cavity (2231), and the circulation cavity (2231) is annular.

4. The powder mixing and packaging device with multi-stage mixing function according to claim 3, characterized in that: The separating assembly (23) comprises a cyclone separator (231), an electromagnetic adsorption plate (232) and an intercepting net (233), the intercepting net (233) and the cyclone separator (231) are fixedly connected, the intercepting net (233) is located above the cyclone separator (231), the electromagnetic adsorption plate (232) and the cyclone separator (231) are fixedly connected, the intercepting net (233) is used for intercepting fluorescent agent, and the cyclone separator (231) is communicated with the stirring mechanism (3).

5. The powder mixing and packaging device with multi-stage mixing function according to claim 4, characterized in that: The stirring mechanism (3) comprises a spherical tank (31), a stirring motor (32), a lateral motor (33), a lateral rotating claw (34) and a stirring rod (35), the spherical tank (31) and the packaging mechanism (4) are fixedly connected, the stirring motor (32) and the spherical tank (31) are fixedly connected, the stirring motor (32) and the stirring rod (35) are drivingly connected, the stirring rod (35) is spiral-shaped, the stirring rod (35) is obliquely arranged, the lateral motor (33) and the spherical tank (31) are fixedly connected, and the lateral motor (33) and the lateral rotating claw (34) are drivingly connected.

6. The powder mixing and packaging device with multi-stage mixing function according to claim 5, characterized in that: The detecting mechanism (5) comprises an LED fluorescent excitation lamp group (51) and a spectrum recognition instrument (52), the inner cylinder tank (213) is made of transparent material, the detecting mechanism (5) is provided with two groups, one group of the LED fluorescent excitation lamp group (51) and the spectrum recognition instrument (52) are fixedly connected with the outer cylinder tank (214), and the other group of the LED fluorescent excitation lamp group (51) and the spectrum recognition instrument (52) are fixedly connected with the premixing box (223).

7. The powder mixing and packaging device with multi-stage mixing function according to claim 6, characterized in that: The packaging mechanism (4) comprises an electric nozzle (41), a mechanical hand (42), a conveying belt (43) and a conveying frame (44), the electric nozzle (41) is communicated with the spherical tank (31), the spherical tank (31) and the conveying frame (44) are fixedly connected, the mechanical hand (42) and the conveying frame (44) are fixedly connected, and the conveying belt (43) and the conveying frame (44) are fixedly connected.

8. The powder mixing and packaging device with multi-stage mixing function according to claim 7, characterized in that: The conveying tank (13) is in a C-shaped cross section, and the sliding plate (14) is in a C-shaped cross section.

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