An energy-saving grinding device for flavor production raw materials driven by an energy-saving motor

Abstract

This invention relates to the field of grinding equipment, specifically to an energy-saving grinding device for flavoring production raw materials driven by an energy-saving motor. It includes an outer cylinder and an inner cylinder. The inner cylinder houses a fixed grinding disc and a rotating grinding disc. An energy-saving motor for driving the rotating grinding disc is located at the bottom of the outer cylinder. A vibrating hopper is positioned directly above the rotating grinding disc. A feed pipe extends obliquely downwards from the outer cylinder to the vibrating hopper. The shaft of the energy-saving motor extends vertically upwards into the vibrating hopper. A circulating air passage is formed between the outer and inner cylinders. The vibrating hopper is elastically extendable, and a material drop gap is formed between the vibrating hopper and the shaft. A transmission component is located on the outer cylinder. This invention, through the cooperation of the vibrating hopper and the transmission component, achieves the periodic opening and closing of the material drop gap, allowing the raw material to fall evenly in a pulsed stream, preventing blockages and material interruptions, improving feed uniformity and grinding stability, avoiding load surges, fully utilizing the advantages of the energy-saving motor, and reducing energy consumption.

Description

Technical Field

[0001] This invention relates to the field of grinding equipment, specifically to an energy-saving grinding device for raw materials used in flavor production, driven by an energy-saving motor. Background Technology

[0002] In the fragrance production industry, grinding is a crucial step in preparing powdered fragrances. However, most existing fragrance grinding equipment employs high-intensity pressure grinding methods, which not only cause severe wear and even damage to the grinding components, resulting in short equipment lifespan, high maintenance costs, and poor practicality. Furthermore, due to unreasonable feeding methods, materials tend to accumulate in the grinding zone, causing uneven grinding and producing a large amount of insufficiently ground lumpy residue, leading to low grinding efficiency and inconsistent product particle size. In addition, traditional equipment has high energy consumption, making it difficult to meet the demands of continuous, uniform, and efficient production.

[0003] A grinding device for making spices, currently disclosed in Chinese Patent Publication No. CN113210066B, includes a base, a first mounting block, a second mounting block, a turntable, a grinding disc, a drive mechanism, and a feeding mechanism. The top of the base is provided with multiple first mounting blocks, and second mounting blocks are connected between the first mounting blocks. A grinding disc is provided on the inner side of the second mounting block, and a turntable is rotatably connected to the inner side of the second mounting block. A drive mechanism is connected between the second mounting block and the turntable, and a feeding mechanism is provided on the second mounting block and the turntable.

[0004] According to the aforementioned patent, the cooperation between the drive mechanism and the feeding mechanism not only enables automatic grinding, replacing manual grinding, but also achieves intermittent feeding. Furthermore, the cooperation between the pressing mechanism and the striking mechanism allows for the compression and continuous striking of the fragrance, preventing its accumulation during feeding. However, using static compression and striking to prevent clogging lacks an active vibration or dispersion mechanism, limiting its effectiveness in clearing easily agglomerated fragrance raw materials. Intermittent operation can also lead to discontinuous grinding processes and reduced efficiency. Therefore, there is a current need for an energy-saving grinding device for fragrance production raw materials driven by an energy-efficient motor. Summary of the Invention

[0005] To address the problems existing in the prior art, an energy-saving grinding device for flavor production raw materials driven by an energy-saving motor is provided. Through the cooperation of a vibrating hopper and a transmission component, the material drop gap is opened and closed periodically, so that the raw materials fall evenly in a pulsed fine stream, preventing blockage and material interruption, improving the uniformity of material supply and grinding stability, avoiding load surges, giving full play to the advantages of energy-saving motors, and reducing energy consumption.

[0006] To address the problems of existing technologies, this invention provides an energy-saving grinding device for flavor production raw materials driven by an energy-saving motor. The device includes an outer cylinder and an inner cylinder disposed therein. The inner cylinder contains a fixed grinding disc and a rotating grinding disc that cooperate with each other. An energy-saving motor is located at the bottom of the outer cylinder to drive the rotating grinding disc. A vibrating hopper is located directly above the rotating grinding disc. A feed pipe extends from top to bottom onto the outer cylinder, inclined towards the vibrating hopper. The shaft of the energy-saving motor extends vertically from bottom to top into the vibrating hopper. A grinding gap is formed between the fixed grinding disc and the rotating grinding disc. A circulating air passage is formed between the outer cylinder and the inner cylinder, enabling the grinding raw materials to be re-transported from bottom to top back to the vibrating hopper. The vibrating hopper is an elastically expandable and contractible structure. A material drop gap that gradually narrows towards the grinding center is formed between the lower end of the vibrating hopper and the rotating shaft. A transmission component, linked to the rotating shaft, drives the vibrating hopper to periodically expand and contract. When the vibrating hopper reciprocates, the material drop gap is in a periodic increasing and decreasing motion state, allowing the raw materials to fall evenly and continuously into the center of the rotating grinding disc.

[0007] Preferably, the vibrating hopper is composed of multiple elastic metal flaps evenly distributed along the circumference of the inner cylinder. One end of each elastic metal flap is fixedly connected to the upper half of the inner cylinder, and the other end extends downwards at an angle toward the axis of rotation. When the material drop gap widens, the elastic metal flap is in a downward outward swinging state with its upper end as the fulcrum.

[0008] Preferably, an elastic telescopic sheet is fixedly connected between the inner sides of every two adjacent elastic metal valves. When the elastic metal valves expand and contract repeatedly, the elastic telescopic sheet is in a state of synchronous extension and folding, so that the raw material can only fall evenly into the center of the rotating grinding disc through the material drop gap.

[0009] Preferably, the portion of the rotating shaft extending into the vibrating hopper is evenly distributed with multiple disturbance blades along its circumference. When the rotating shaft rotates, the disturbance blades work in conjunction with the vibrating hopper to synchronously guide the raw materials, forming a synergistic guiding effect.

[0010] Preferably, the bottom of the outer cylinder is provided with a downward slope to guide the grinding material to slide down towards the lowest point of the circulating air passage, and several positive pressure air pipes are evenly distributed along the circumference of the inner cylinder in the area of ​​the downward slope facing the circulating air passage.

[0011] Preferably, the top of the outer cylinder is provided with a rotating screen cylinder for screening the grinding raw materials. The bottom center of the rotating screen cylinder is fixedly connected to the rotating shaft. The top of the rotating screen cylinder is provided with a negative pressure air pipe that extends upward through the outer cylinder. When the positive pressure air pipe and the negative pressure air pipe are started synchronously, they work together to form a directional airflow circulation from bottom to top.

[0012] Preferably, the area at the top of the outer cylinder directly opposite the circulating air passage is provided with an upper slope for guiding the rising grinding material to the periphery of the rotating screen cylinder.

[0013] Preferably, each elastic metal valve is provided with a corresponding transmission component. The transmission component has a pull rod. One end of the pull rod passes through the outer cylinder and the inner cylinder in sequence and extends toward the elastic metal valve. The inward extension end of the pull rod is hinged to the elastic metal valve. The outward extension end of the pull rod is fixedly connected to the outer cylinder with a tension spring.

[0014] Preferably, the transmission component also has a power plate, the middle part of which is fixedly connected to the outward extension end of the pull rod. The upper and lower ends of the power plate are respectively provided with sliders. The top and bottom of the outer cylinder are provided with slide rails corresponding to each slider. The top and bottom of the outer cylinder are also provided with driving components for converting the rotational motion of the rotating shaft into the reciprocating linear motion of the slider.

[0015] Preferably, the negative pressure air pipe is coaxially arranged with the rotating shaft, the driving component is a turntable, and the turntable is coaxially arranged on both the negative pressure air pipe and the rotating shaft. Each slide rail has an arc surface that fits with the corresponding turntable on its inner side, each slider has a flange on its inner side, and the edge of the corresponding turntable has an outward protrusion that contacts the slider flange and pushes it to slide outward.

[0016] The advantages of this application compared to the prior art are:

[0017] 1. This invention utilizes a vibrating hopper composed of multiple elastic metal valves, driven by a transmission component to periodically expand and contract, thereby dynamically adjusting the material discharge gap. When the elastic metal valves swing downwards and outwards, the discharge gap widens, allowing the raw material to fall smoothly. When the elastic metal valves retract, the gap narrows, controlling the flow rate. This ensures that the raw material falls evenly into the center of the grinding disc in a pulsed, fine stream, effectively preventing blockages and material interruptions, promoting simultaneous feeding and initial mixing of multi-component raw materials, improving feeding uniformity and grinding stability, and ensuring grinding efficiency and particle size consistency.

[0018] At the same time, it avoids the surge in grinding load caused by excessive feeding, and gives full play to the high-efficiency driving advantage of the energy-saving motor, significantly reducing energy consumption while ensuring grinding quality.

[0019] 2. This invention achieves dynamic sealing of the gap between adjacent elastic metal valves during movement by connecting elastic telescopic pieces to the inner side of adjacent elastic metal valves, preventing lateral leakage of raw materials, ensuring that raw materials are discharged only from the material drop gap, and improving the controllability of feeding.

[0020] Simultaneously, the reciprocating extension and retraction motion of the vibrating hopper, combined with the disturbance fins on the rotating shaft, ensures that the raw materials continuously loosen and flow in a directional manner under the synergistic effect of mechanical agitation and periodic vibration, effectively preventing agglomeration and bridging. This improves the stability and consistency of multi-component raw material flow, optimizes the grinding and feeding process, reduces the risk of clogging, and enhances grinding efficiency and energy saving.

[0021] 3. This invention utilizes a combination of a downward slope and a positive pressure air pipe to efficiently deliver the ground raw materials into the circulating air duct, combining gravity guidance with airflow. The positive pressure air pipe provides strong blowing force to ensure the stable ascent of the raw materials, while the negative pressure air pipe employs weaker suction force to create a synergistic airflow with the positive pressure. This allows qualified fine powder to be graded and collected through the rotating screen cylinder, preventing coarse particles from being adsorbed and clogging the screen surface.

[0022] Coarse particles that do not pass through the rotating screen cylinder fall smoothly back under the action of gravity and centrifugal force, achieving continuous circulating grinding. The upper slope guides the rising raw material to the periphery of the rotating screen cylinder in a timely manner, ensuring that the gas-solid two-phase flow enters the screening area evenly, improving the stability and continuity of classification, realizing efficient pneumatic conveying, precise classification and energy-saving circulation, and significantly improving grinding efficiency and product uniformity. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural schematic diagram of an energy-saving grinding device for flavor production raw materials driven by an energy-saving motor, according to the present invention.

[0024] Figure 2 This is a partial three-dimensional cross-sectional view of an energy-saving grinding device for flavor production raw materials driven by an energy-saving motor, according to the present invention. Figure 1 .

[0025] Figure 3 This is a partial three-dimensional cross-sectional view of an energy-saving grinding device for flavor production raw materials driven by an energy-saving motor, according to the present invention. Figure 2 .

[0026] Figure 4 This is a planar cross-sectional view of an energy-saving grinding device for flavor production raw materials driven by an energy-saving motor, according to the present invention.

[0027] Figure 5 This is a partial three-dimensional cross-sectional view of an energy-saving grinding device for flavor production raw materials driven by an energy-saving motor, according to the present invention. Figure 3 .

[0028] Figure 6 This is an exploded three-dimensional structural diagram of the fixed grinding disc and the rotating grinding disc of an energy-saving grinding device for raw materials in fragrance production driven by an energy-saving motor, according to the present invention.

[0029] Figure 7 This is a three-dimensional structural diagram of a vibrating hopper of an energy-saving grinding device for flavor production raw materials driven by an energy-saving motor, according to the present invention. Figure 1 .

[0030] Figure 8 This is a three-dimensional structural diagram of a vibrating hopper of an energy-saving grinding device for flavor production raw materials driven by an energy-saving motor, according to the present invention. Figure 2 .

[0031] Figure 9 This is a partial three-dimensional cross-sectional view of the transmission component of an energy-saving grinding device for flavor production raw materials driven by an energy-saving motor, according to the present invention. Figure 1 .

[0032] Figure 10 This is a partial three-dimensional cross-sectional view of the transmission component of an energy-saving grinding device for flavor production raw materials driven by an energy-saving motor, according to the present invention. Figure 2 .

[0033] The diagram is labeled as follows: 1. Outer cylinder; 11. Feed pipe; 12. Circulating air duct; 121. Lower slope; 122. Positive pressure air pipe; 13. Rotary screen cylinder; 131. Negative pressure air pipe; 132. Upper slope; 2. Inner cylinder; 3. Fixed grinding disc; 4. Rotary grinding disc; 5. Vibrating hopper; 51. Elastic metal valve; 52. Elastic telescopic plate; 6. Rotating shaft; 61. Material drop gap; 62. Disturbance lever; 7. Transmission component; 71. Pull rod; 711. Hinge; 712. Tension spring; 72. Power plate; 721. Slider; 722. Slide rail; 73. Turntable. Detailed Implementation

[0034] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0035] See Figures 1-6 As shown, an energy-saving grinding device for flavoring production raw materials driven by an energy-saving motor includes an outer cylinder 1 and an inner cylinder 2 disposed therein. The inner cylinder 2 contains a fixed grinding disc 3 and a rotating grinding disc 4 that cooperate with each other. An energy-saving motor for driving the rotating grinding disc 4 is located at the bottom of the outer cylinder 1. A vibrating hopper 5 is located directly above the rotating grinding disc 4. A feed pipe 11 extends obliquely downwards from the outer cylinder 1 to the vibrating hopper 5. The rotating shaft 6 of the energy-saving motor extends vertically upwards into the vibrating hopper 5. A grinding wheel is formed between the fixed grinding disc 3 and the rotating grinding disc 4. The grinding gap, the outer cylinder 1 and the inner cylinder 2 form a circulating air passage 12 that can re-transport unqualified grinding materials from bottom to top to the vibrating hopper 5. The vibrating hopper 5 is an elastically telescopic structure. The lower port of the vibrating hopper 5 and the rotating shaft 6 form a material drop gap 61 that gradually narrows towards the grinding center. The outer cylinder 1 is provided with a transmission component 7 that is linked with the rotating shaft 6 to drive the vibrating hopper 5 to periodically expand and contract. When the vibrating hopper 5 reciprocates, the material drop gap 61 is in a state of periodically increasing and decreasing motion, so that the material falls into the center of the rotating grinding disc 4.

[0036] The outer cylinder 1 has a plurality of feed pipes 11 evenly distributed along its circumference, which are used to feed different raw materials into the cylinder during the mixing and grinding process.

[0037] When multiple flavoring raw materials need to be mixed and ground, the operator first prepares the different raw materials required according to the formula, and then puts them into multiple feed pipes 11 evenly distributed along the circumference of the outer cylinder 1. Each feed pipe 11 is set independently and does not interfere with each other. Different kinds of solid flavorings or pre-treated powder raw materials can be added simultaneously or in stages, realizing the orderly and zoned supply of multi-component raw materials. This avoids pre-reactions or component segregation that may occur during external mixing, and ensures the accuracy of the formula and the purity of the raw materials.

[0038] When the energy-saving motor starts and the rotating shaft 6 begins to rotate, the portion of its upper end extending into the vibrating hopper 5 disturbs the raw materials in the vibrating hopper 5. At the same time, the vibrating hopper 5 is driven to perform periodic expansion and contraction movements through the linked transmission component 7.

[0039] As the vibrating hopper 5 reciprocates, the material drop gap 61 periodically expands and contracts. When the drop gap 61 expands, the material above it flows downwards under gravity. When the drop gap 61 contracts, the material flow is temporarily slowed. This pulsed opening and closing rhythm ensures that the material falls into the central area of ​​the rotating grinding disc 4 in an intermittent but continuous stream. This effectively avoids the clogging or material interruption problems that are common with traditional static feeding. Furthermore, by controlling the matching of the vibration frequency and the rotation speed of the shaft 6, dynamic coordination between the material drop rate and the grinding rate is achieved, ensuring uniform force on the material within the grinding gap and improving grinding efficiency and particle size consistency.

[0040] Meanwhile, the ground raw material is thrown to the outer edge under centrifugal force. The material is carried by the airflow in the circulating air channel 12 formed between the outer cylinder 1 and the inner cylinder 2. Some of the powder that meets the fineness requirements is discharged, while the coarse particles that do not meet the standard fall back into the vibrating hopper 5, achieving automatic return and secondary grinding of unqualified raw materials. This ensures the uniformity of material feeding, avoids a surge in grinding load caused by excessive feeding, fully utilizes the high-efficiency drive advantage of the energy-saving motor, and significantly reduces energy consumption while ensuring grinding quality.

[0041] The entire feeding and initial mixing process is carried out automatically and smoothly under the control of the vibrating hopper 5. This not only ensures that various raw materials can enter the grinding stage evenly and synchronously, but also improves the uniformity of mixing and grinding efficiency, laying a solid foundation for subsequent high-efficiency and energy-saving grinding.

[0042] See Figures 2-5 and Figures 7-9 As shown, the vibrating hopper 5 is composed of multiple elastic metal flaps 51 evenly distributed along the circumference of the inner cylinder 2. One end of each elastic metal flap 51 is fixedly connected to the upper half of the inner cylinder 2, and the other end extends downwards towards the rotating shaft 6. When the material drop gap 61 expands, the elastic metal flap 51 is in a downward outward swinging state with the upper end as the fulcrum.

[0043] When the vibrating hopper 5 expands to widen the material drop gap 61, multiple elastic metal valves 51 evenly distributed along the circumference of the inner cylinder 2 begin to swing synchronously downward and outward under the action of external driving force, with the fixed connection point between the upper end and the upper half of the inner cylinder 2 as the fulcrum. The free ends of each elastic metal valve 51 tilt and swing away from the rotating shaft 6, which increases the gap between the elastic metal valves 51 that originally tilted downward towards the rotating shaft 6, thereby effectively widening the material drop gap 61 and providing a spacious channel for the raw material to flow from top to bottom into the central area of ​​the rotating grinding disc 4.

[0044] As the elastic metal diaphragms 51 gradually return to their original positions under the traction of their own elasticity and the transmission component 7, the free ends of each elastic metal diaphragm 51 swing back towards the rotating shaft 6, thereby reducing the space between the elastic metal diaphragms 51 and correspondingly narrowing the material drop gap 61, thus restricting the material flow. Under this periodic driving action, each elastic metal diaphragm 51 continuously performs regular downward swinging and retraction movements with its upper fixed point as the fulcrum, causing the material drop gap 61 to alternately expand and contract, achieving precise control over the material drop process.

[0045] See Figure 4 and Figure 7 As shown, an elastic telescopic piece 52 is fixedly connected between the inner sides of every two adjacent elastic metal valves 51. When the elastic metal valves 51 expand and contract repeatedly, the elastic telescopic piece 52 is in a state of synchronous extension and folding, so that the raw material can only fall evenly into the center of the rotating grinding disc 4 through the material drop gap 61.

[0046] When two adjacent elastic metal valves 51 expand downwards and outwards synchronously under the driving action, the elastic telescopic piece 52 connected between their inner sides is stretched and enters the extended state, effectively filling and sealing the gradually increasing gap between the elastic metal valves 51, preventing raw materials from leaking from the side of the elastic metal valves 51.

[0047] As the expansion reaches its limit, the elastic expansion piece 52 is in its maximum extended state, still maintaining a continuous and intact inner wall surface. When the elastic metal valve 51 begins to retract towards the rotation axis 6 and enters the contraction stage, the distance between the two elastic metal valves 51 decreases, and the elastic expansion piece 52 loses its tension and gradually folds inward under its own elasticity, forming a regular pleated structure to adapt to the continuously shrinking distance between the elastic metal valves 51.

[0048] Throughout the reciprocating process, the elastic telescopic plate 52 always moves in sync with the elastic metal valve 51, achieving alternating expansion and folding to ensure that the inner cavity of the vibrating hopper 5 remains closed, so that the raw material can only be discharged downwards evenly and in a concentrated manner through the material drop gap 61, avoiding leakage or accumulation of raw material in non-designated areas, thereby ensuring the controllability and uniformity of feeding.

[0049] See Figures 2-5 , Figure 7 and Figure 9 As shown, the portion of the rotating shaft 6 extending into the vibrating hopper 5 has multiple disturbance paddles 62 evenly distributed along its circumference. When the rotating shaft 6 rotates, the disturbance paddles 62 work in conjunction with the vibrating hopper 5 to guide the raw materials synchronously, forming a synergistic guiding effect.

[0050] When the shaft 6 rotates, multiple disturbance plates 62 rotate synchronously. During rotation, the disturbance plates 62 continuously contact and push the raw material accumulated in the vibrating hopper 5, preventing the raw material from clumping. At the same time, the vibrating hopper 5 undergoes periodic expansion and contraction movements driven by the transmission component 7. This keeps the raw material continuously loose and directionally moving under the dual effects of vibration loosening and mechanical agitation, forming a synchronous guiding state. This effectively improves the continuity and uniformity of the raw material flow, achieving a synergistic guiding effect combining vibration and rotation, ensuring that the raw material stably and smoothly enters the grinding area through the material drop gap 61.

[0051] See Figures 2-5 As shown, the bottom of the outer cylinder 1 is provided with a downward slope 121 for guiding the grinding material to slide down towards the lowest point of the circulation air passage 12. Several positive pressure air pipes 122 are evenly distributed along the circumference of the inner cylinder 2 in the area of ​​the downward slope 121 facing the circulation air passage 12.

[0052] When the ground raw material falls from the grinding area to the bottom of the outer cylinder 1, it first contacts and slides down the inclined surface of the downward slope 121 towards the lowest point of the circulating air passage 12, effectively guiding the raw material to be concentrated and transported to the starting position of the circulation path. At this time, compressed air supplied by the external air source is synchronously ejected through each positive pressure air pipe 122, forming multiple directional high-speed airflows, the airflow direction of which is consistent with the upward path of the circulating air passage 12.

[0053] The ejected airflow exerts an upward thrust and suspension effect on the raw material. Throughout the process, the gravity guiding effect of the downward slope 121 and the pneumatic pushing effect of the positive pressure air pipe 122 are continuously connected and coordinated, so that the unqualified coarse particles can be stably and continuously transported from bottom to top along the circulating air channel 12, achieving efficient and reliable pneumatic circulation transport.

[0054] See Figures 2-5As shown, the top of the outer cylinder 1 is provided with a rotating screen cylinder 13 for screening the grinding raw materials. The bottom center of the rotating screen cylinder 13 is fixedly connected to the rotating shaft 6. The top of the rotating screen cylinder 13 is provided with a negative pressure air pipe 131 that extends upward through the outer cylinder 1. When the positive pressure air pipe 122 and the negative pressure air pipe 131 are started synchronously, they work together to form a directional airflow circulation from bottom to top.

[0055] The suction force of the negative pressure air pipe 131 is less than the blowing force of the positive pressure air pipe 122. The positive pressure air pipe 122 ejects a stronger airflow, carrying the grinding material falling onto the lower slope 121 and blowing it upward along the circulating air channel 12. Meanwhile, the negative pressure air pipe 131 generates a weaker suction force, allowing qualified fine powder to be drawn out through the rotating screen cylinder 13 under the combined action of blowing and negative pressure, achieving graded collection. Unqualified coarse particles that do not pass through the rotating screen cylinder 13 are impacted by the blowing force and fall due to gravity and centrifugal force, re-entering the grinding process.

[0056] In order to prevent unqualified coarse particles from being adsorbed onto the outer periphery of the rotating screen cylinder 13 by excessive suction, thereby affecting the screening efficiency and circulation process, the air force setting of the negative pressure air pipe 131 is less than that of the positive pressure air pipe 122, so as to achieve efficient and continuous pneumatic classification and circulating grinding.

[0057] See Figures 2-5 As shown, the area at the top of the outer cylinder 1 directly opposite the circulating air passage 12 is provided with an upper slope 132 for guiding the rising grinding material to the periphery of the rotating screen cylinder 13.

[0058] The function of the upper ramp 132 is to guide the grinding material rising along the circulating air channel 12 to the periphery of the rotating screen cylinder 13 in a timely and smooth manner, preventing some material from being stuck in the outlet area of ​​the circulating air channel 12 due to uneven airflow distribution or insufficient inertia. This ensures that the gas-solid two-phase flow continuously and stably enters the screening area, improving classification efficiency and reliability. It also creates favorable conditions for the subsequent efficient discharge of fine powder through the screen holes and the smooth return of coarse particles under the synergistic effect of negative pressure suction and positive pressure blowing.

[0059] See Figures 2-5 , Figure 9 and Figure 10 As shown, each elastic metal valve 51 is provided with a corresponding transmission component 7. The transmission component 7 has a pull rod 71. One end of the pull rod 71 passes through the outer cylinder 1 and the inner cylinder 2 in sequence and extends towards the elastic metal valve 51. The inward extension end of the pull rod 71 is hinged to the elastic metal valve 51 by a hinge 711. The outward extension end of the pull rod 71 is fixedly connected to the outer cylinder 1 by a tension spring 712.

[0060] When the vibrating hopper 5 needs to perform periodic expansion and contraction movements, the pull rod 71 moves reciprocally in the radial direction under the drive of external force. When the pull rod 71 is pulled outward, the elastic metal valve 51 is pulled by the hinge 711, so that it swings outward and downward with the fixed connection point between its upper end and the inner cylinder 2 as the fulcrum, thus realizing the expansion action. At this time, the tension spring 712 is stretched and stores elastic potential energy.

[0061] As the drive direction reverses, the pull rod 71 retracts inward, and the tension spring 712 releases its stored potential energy, generating an inward restoring force. This assists the pull rod 71 in driving the hinge 711 and the elastic metal valve 51 to swing inward, gradually returning to their contracted state near the pivot 6. Throughout the entire motion cycle, the pull rod 71 precisely transmits the transmission power to the corresponding elastic metal valve 51 through the hinge 711, achieving precise control over its swing angle and motion rhythm. This ensures that the expansion and contraction of each elastic metal valve 51 are independent and synchronous, coordinating and consistently changing the size of the material drop gap 61, thus guaranteeing the uniformity and controllability of the material drop.

[0062] See Figures 2-5 , Figure 9 and Figure 10 As shown, the transmission component 7 also has a power plate 72. The middle part of the power plate 72 is fixedly connected to the outward extension end of the pull rod 71. The upper and lower ends of the power plate 72 are respectively provided with sliders 721. The top and bottom of the outer cylinder 1 are provided with slide rails 722 corresponding to each slider 721. The top and bottom of the outer cylinder 1 are also provided with driving components for converting the rotational motion of the rotating shaft 6 into the reciprocating linear motion of the slider 721.

[0063] When the rotating shaft 6 rotates, the driving component is activated, converting the continuous rotational motion of the rotating shaft 6 into mechanical reciprocating motion, which acts on the sliders 721 located at the upper and lower ends of the power plate 72. When the driving component pushes the sliders 721 to make reciprocating linear motion along the slide rail 722, the sliders 721 drive the entire power plate 72 to move back and forth synchronously. The reciprocating motion of the power plate 72 is directly transmitted through the pull rod 71, causing the pull rod 71 to make synchronous reciprocating motion in the radial direction.

[0064] The top and bottom sliders 721 work together with the slide rail 722 to ensure that the power plate 72 maintains a stable posture during movement, avoiding twisting or tilting, thereby ensuring the accuracy and reliability of the movement of the pull rod 71. This enables the efficient and stable conversion of the rotational motion of the rotating shaft 6 into the reciprocating linear motion of the pull rod 71, driving the elastic metal valve 51 to complete periodic expansion and contraction.

[0065] See Figures 2-5 , Figure 9 and Figure 10As shown, the negative pressure air pipe 131 is coaxially arranged with the rotating shaft 6, and the driving component is a turntable 73. The turntable 73 is coaxially arranged on both the negative pressure air pipe 131 and the rotating shaft 6. Each slide rail 722 has an arc surface that fits with the corresponding turntable 73 on its inner side. Each slider 721 has a flange on its inner side. The edge of the corresponding turntable 73 has an outward protrusion that contacts the flange of the slider 721 and pushes it to slide outward.

[0066] When the rotating shaft 6 rotates, the turntable 73 rotates synchronously. When the turntable 73 rotates to the position where the outer protrusion contacts the flange of the slider 721, the outer protrusion pushes the flange and applies a radially outward force, thereby driving the slider 721 to overcome the tension of the tension spring 712 and slide along the slide rail 722 in a direction away from the rotating shaft 6.

[0067] As the turntable 73 continues to rotate, the outer protrusion gradually disengages from the flange of the slider 721, the force disappears, and the slider 721 slides inward along the slide rail 722 under the restoring force of the tension spring 712, completing one reciprocating motion, thereby driving the elastic metal valve 51 to achieve synchronous expansion and contraction.

[0068] This invention utilizes a vibrating hopper 5 composed of multiple elastic metal valves 51, in conjunction with a transmission component 7, to achieve periodic expansion and contraction, dynamically adjusting the material drop gap 61. This allows the raw material to fall evenly into the center of the grinding disc in a pulsed, fine stream, effectively preventing blockages and material interruptions, promoting simultaneous feeding and initial mixing of multi-component raw materials, improving the uniformity of material supply and grinding stability, avoiding a surge in grinding load, fully leveraging the high-efficiency driving advantages of the energy-saving motor, and significantly reducing energy consumption.

[0069] During the grinding process, a dynamic seal is achieved by connecting an elastic telescopic plate 52 to the inner side of adjacent elastic metal valves 51, preventing lateral leakage of raw materials and ensuring that the raw materials are discharged only from the material drop gap 61, thus improving the controllability of the feed. Combined with the reciprocating motion of the disturbance plate 62 on the rotating shaft 6 and the vibrating hopper 5, the raw materials are continuously loosened and flowed in a direction under the synergistic effect of mechanical agitation and vibration loosening, effectively preventing agglomeration and bridging, and improving flow stability.

[0070] After grinding, the raw material is stably fed into the circulating air channel 12 by gravity guidance and strong airflow through the lower slope 121 and positive pressure air pipe 122. The weak negative pressure suction combined with the positive pressure airflow realizes the efficient classification and discharge of fine powder, and the coarse particles fall back smoothly after impacting the screen cylinder for re-grinding. The upper slope 132 ensures that the rising material is smoothly guided to the screening area. The whole process realizes efficient pneumatic conveying, accurate classification and energy-saving circulation, significantly improving grinding efficiency and product uniformity.

[0071] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of protection of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A kind of essence production raw material energy-saving grinding device driven by energy-saving motor, comprising outer cylinder (1) and the inner cylinder (2) arranged therein, the inner cylinder (2) is equipped with fixed grinding disc (3) and rotating grinding disc (4) that cooperate with each other, the bottom of outer cylinder (1) is equipped with energy-saving motor for driving rotating grinding disc (4) to rotate; characterized in that Rotating grinding disc (4) is equipped with vibrating hopper (5) directly above, outer cylinder (1) is equipped with feed pipe (11) extending to vibrating hopper (5) from top to bottom, the rotating shaft (6) of energy-saving motor extends to the inside of vibrating hopper (5) from bottom to top; Fixed grinding disc (3) and rotating grinding disc (4) form grinding gap between them; The circulation air channel (12) that can re-deliver grinding raw materials from bottom to top to vibrating hopper (5) is formed between outer cylinder (1) and inner cylinder (2); Vibrating hopper (5) is elastically extensible structure, the lower port of vibrating hopper (5) and the rotating shaft (6) form the falling gap (61) that gradually narrows towards the grinding center, outer cylinder (1) is equipped with transmission member (7) for driving vibrating hopper (5) to periodically expand and contract movement in linkage with rotating shaft (6); When vibrating hopper (5) reciprocates, falling gap (61) is in the state of periodic movement of becoming larger and smaller, so that raw materials fall into the center of rotating grinding disc (4) uniformly and continuously; Vibrating hopper (5) is composed of multiple elastic metal valves (51) evenly distributed along the circumferential direction of inner cylinder (2), one end of each elastic metal valve (51) is fixedly connected with the upper half of inner cylinder (2), the other end is inclined downward towards the direction of rotating shaft (6), when falling gap (61) expands, elastic metal valve (51) is in the state of outward swing with the upper end as fulcrum; The inner side between every two adjacent elastic metal valves (51) is fixedly connected with an elastic expansion sheet (52), when elastic metal valve (51) reciprocates expansion and contraction, elastic expansion sheet (52) is in the state of synchronous stretching and folding, so that raw materials can only fall into the center of rotating grinding disc (4) uniformly through falling gap (61).

2. A raw material grinding device for essence production driven by an energy saving motor according to claim 1, characterized in that, The part of rotating shaft (6) extending to the inside of vibrating hopper (5) is evenly distributed with multiple disturbance paddles (62) along the circumferential direction thereof, when rotating shaft (6) rotates, disturbance paddle (62) is in the state of synchronous dredging with vibrating hopper (5) to raw materials, forming synergistic flow guiding effect.

3. A raw material grinding device for essence production driven by an energy saving motor according to claim 1, characterized in that, The bottom of outer cylinder (1) is equipped with downward slope (121) for guiding grinding raw materials to slide to the lowest point of circulation air channel (12), the area of downward slope (121) opposite to circulation air channel (12) is evenly distributed with several positive pressure air pipes (122) along the circumferential direction of inner cylinder (2).

4. A raw material grinding device for essence production driven by an energy saving motor according to claim 3, characterized in that, The top of outer cylinder (1) is equipped with rotating sieve cylinder (13) for screening grinding raw materials, the bottom center of rotating sieve cylinder (13) is fixedly connected with rotating shaft (6), the top of rotating sieve cylinder (13) is equipped with negative pressure air pipe (131) extending upward through outer cylinder (1), when positive pressure air pipe (122) and negative pressure air pipe (131) are started synchronously, they form upward directional air flow circulation synergistically.

5. A raw material grinding device for essence production driven by an energy saving motor according to claim 4, wherein The outer cylinder (1) is provided with an upper slope (132) around the area opposite to the circulating gas channel (12) at the top, which is used to guide the rising grinding raw materials to the periphery of the rotating sieve cylinder (13).

6. A raw material grinding device for essence production driven by an energy saving motor according to claim 4, characterized in that, Each elastic metal valve (51) is provided with a transmission member (7), the transmission member (7) has a pull rod (71), one end of the pull rod (71) penetrates the outer cylinder (1) and the inner cylinder (2) radially in turn and extends to the elastic metal valve (51), the inward extending end of the pull rod (71) is hinged with the elastic metal valve (51) through a hinge (711), and the outward extending end of the pull rod (71) is fixedly connected with the outer cylinder (1) through a tension spring (712).

7. A raw material grinding device for essence production driven by an energy saving motor according to claim 6, characterized in that, The transmission member (7) further has a power plate (72), the middle part of the power plate (72) is fixedly connected with the outward extending end of the pull rod (71), the upper and lower ends of the power plate (72) are respectively provided with a sliding block (721), the top and bottom of the outer cylinder (1) are respectively provided with a sliding rail (722) corresponding to each sliding block (721), and the top and bottom of the outer cylinder (1) are further respectively provided with a driving member for converting the rotary motion of the rotating shaft (6) into the reciprocating linear motion of the sliding block (721).

8. A raw material grinding device for essence production driven by an energy saving motor according to claim 7, characterized in that, The negative pressure air pipe (131) is coaxially arranged on the rotating shaft (6), the driving member is a rotating disc (73), the negative pressure air pipe (131) and the rotating shaft (6) are both coaxially provided with the rotating disc (73), the inner side of each sliding rail (722) has an arc surface matched with the corresponding rotating disc (73), the inner side of each sliding block (721) is provided with a flange, and the edge of the corresponding rotating disc (73) is provided with an outer convex part in contact with the flange of the sliding block (721) and pushing the sliding block (721) to slide outward.

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