Essence production raw material energy-saving grinding device driven by energy-saving motor

Abstract

The invention relates to the field of grinding equipment, in particular to an essence production raw material energy-saving grinding device driven by an energy-saving motor. Comprising an outer cylinder and an inner cylinder, a fixed grinding disc and a rotary grinding disc are arranged in the inner cylinder, an energy-saving motor used for driving the rotary grinding disc to rotate is arranged at the bottom of the outer cylinder, a vibration hopper is arranged over the rotary grinding disc, and a feeding pipe obliquely extending to the vibration hopper from top to bottom is arranged on the outer cylinder; a rotating shaft of the energy-saving motor vertically extends into the vibration hopper from bottom to top, a circulating air channel is formed between the outer barrel and the inner barrel, the vibration hopper is of an elastic telescopic structure, a discharging gap is formed between the vibration hopper and the rotating shaft, and a transmission part is arranged on the outer barrel. Through cooperation of the vibration hopper and the transmission part, periodic opening and closing of the discharging gap are achieved, raw materials evenly fall in a pulse trickle mode, blocking and material breaking are prevented, feeding uniformity and grinding stability are improved, sharp load increase is avoided, the advantages of an energy-saving motor are fully played, and energy consumption is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of grinding equipment, in particular to a kind of energy-saving motor driven essence production raw material energy-saving grinding device. BACKGROUND

[0002] In essence production field, grinding is the key process of preparing powder essence. However, the existing spice grinding equipment mostly adopts high-strength press grinding mode, which not only causes serious wear and even damage to the grinding parts, resulting in short equipment life, high maintenance cost and poor practicability. At the same time, due to unreasonable feeding mode, material is easy to accumulate in grinding area, causing uneven grinding and producing a large amount of blocky residues that are not fully ground, resulting in low grinding efficiency and uneven product particle size. In addition, the energy consumption of traditional equipment is high, which is difficult to meet the continuous, uniform and efficient production demand.

[0003] The currently disclosed Chinese patent CN113210066B discloses a kind of grinding equipment for spice making, including base, first mounting block, second mounting block, rotating disc, grinding disc, drive mechanism and discharging mechanism, the top of base is equipped with multiple first mounting blocks, first mounting block is connected with second mounting block between, the inner side of second mounting block is equipped with grinding disc, the inner side of second mounting block is rotatably connected with rotating disc, drive mechanism is connected between second mounting block and rotating disc, and discharging mechanism is arranged on second mounting block and rotating disc.

[0004] According to the above-mentioned patent, the cooperation between the drive mechanism and the discharging mechanism can not only realize automatic grinding, but also realize the effect of interval feeding. And through the cooperation between the pressing mechanism and the knocking mechanism, the spices can be extruded and continuously knocked to avoid accumulation during feeding. However, static extrusion and knocking are used to prevent blockage, which lacks active vibration or dispersion mechanism, and the effect of dredging for spices prone to caking is limited, and intermittent operation may cause discontinuous grinding process and reduce efficiency. Therefore, there is a need for a kind of energy-saving grinding device for essence production raw material driven by energy-saving motor. SUMMARY

[0005] In view of the problems existing in the prior art, an energy-saving grinding device for essence production raw material driven by energy-saving motor is provided, which realizes the periodic opening and closing of the material falling gap by the cooperation of the vibrating hopper and the transmission member, makes the raw material fall uniformly in pulse stream, prevents blockage and material breakage, improves the uniformity of material supply and the stability of grinding, avoids load surge, fully utilizes the advantages of energy-saving motor, and reduces energy consumption.

[0006] In order to solve the prior art problems, the application provides a kind of essence production raw material energy-saving grinding device driven by energy-saving motor, including outer cylinder and the inner cylinder being arranged in it, the inner cylinder is equipped with the fixed grinding disc and rotating grinding disc that cooperate with each other, the bottom of outer cylinder is equipped with energy-saving motor for driving rotating grinding disc to rotate, the upper of rotating grinding disc is equipped with vibrating hopper, outer cylinder is equipped with feed pipe that extends to vibrating hopper from top to bottom and is inclined, the rotating shaft of energy-saving motor extends to the inside of vibrating hopper from bottom to top, the fixed grinding disc and rotating grinding disc form grinding gap between them, the circulation air passage that can re-transport grinding raw material from bottom to top to vibrating hopper is formed between outer cylinder and inner cylinder, vibrating hopper is elastically extensible structure, the discharge gap that is tapered towards grinding center is formed between the lower end of vibrating hopper and rotating shaft, outer cylinder is equipped with transmission part for driving vibrating hopper to periodically expand and contract movement in linkage with rotating shaft, when vibrating hopper reciprocating motion, the discharge gap is in the movement state of periodically becoming larger and smaller, so that raw material falls into the center of rotating grinding disc uniformly and continuously.

[0007] Preferably, vibrating hopper is composed of multiple elastic metal valves that are uniformly distributed along the circumferential direction of inner cylinder, one end of each elastic metal valve is fixedly connected with the upper half of inner cylinder, and the other end is inclined downward towards the direction of rotating shaft, when the discharge gap expands, the elastic metal valve is in the state of outward swinging downward with the upper end as fulcrum.

[0008] Preferably, an elastic expansion sheet is fixedly connected between the inner sides of every two adjacent elastic metal valves, when the elastic metal valve reciprocating expands and contracts, the elastic expansion sheet is in the state of synchronous stretching and folding, so that raw material can only fall into the center of rotating grinding disc uniformly through the discharge gap.

[0009] Preferably, the part of rotating shaft extending to the inside of vibrating hopper is uniformly distributed with multiple disturbance tabs along the circumferential direction thereof, when rotating shaft rotates, the disturbance tabs are in the state of synchronous guiding raw material in cooperation with vibrating hopper, forming synergistic flow guiding effect.

[0010] Preferably, the bottom of outer cylinder is equipped with downward slope for guiding grinding raw material to slide towards the lowest point of circulation air passage, the area of downward slope opposite to circulation air passage is uniformly distributed with several positive pressure air pipes along the circumferential direction of inner cylinder.

[0011] Preferably, the top of outer cylinder is equipped with rotating sieve cylinder for screening grinding raw material, the bottom center of rotating sieve cylinder is fixedly connected with rotating shaft, the top of rotating sieve cylinder is equipped with negative pressure air pipe extending upward through outer cylinder, when positive pressure air pipe and negative pressure air pipe are started synchronously, they cooperatively form downward directional air flow circulation.

[0012] Preferably, the area of top of outer cylinder opposite to circulation air passage is surrounded with upward slope for guiding rising grinding raw material to the side of rotating sieve cylinder.

[0013] Preferably, each elastic metal valve is provided with a transmission member, the transmission member has a pull rod, one end of the pull rod penetrates the outer cylinder and the inner cylinder radially in sequence and extends to the elastic metal valve, and the inward extending end of the pull rod is hinged with the elastic metal valve.

[0014] Preferably, the transmission member further has a power plate, the middle part of the power plate is fixedly connected with the outward extending end of the pull rod, and the upper and lower ends of the power plate are respectively provided with sliding blocks, the top and bottom of the outer cylinder are provided with sliding rails corresponding to each sliding block, and the top and bottom of the outer cylinder are further provided with driving members for converting the rotary motion of the rotating shaft into the reciprocating linear motion of the sliding blocks.

[0015] Preferably, the negative pressure air pipe is coaxially arranged with the rotating shaft, the driving member is a rotating disc, the negative pressure air pipe and the rotating shaft are both coaxially provided with the rotating disc, the inner side of each sliding rail has an arc surface matched with the corresponding rotating disc, and the inner side of each sliding block is provided with a flange, and the edge of the corresponding rotating disc is provided with an outer convex part in contact with the flange of the sliding block and pushing the flange to slide outward.

[0016] The beneficial effects of the present application compared with the prior art are: 1. The vibrating hopper composed of a plurality of elastic metal valves cooperates with the transmission member to drive periodic expansion and contraction, so as to realize dynamic adjustment of the material falling gap. When the elastic metal valve swings downward and outward, the material falling gap is enlarged, and the raw materials smoothly fall down. When the elastic metal valve retracts, the gap is reduced, and the flow is controlled. The raw materials fall into the center of the grinding disc in a pulse stream, effectively preventing clogging and material breakage, promoting synchronous feeding and preliminary mixing of multi-component raw materials, improving feeding uniformity and grinding stability, and ensuring grinding efficiency and particle size consistency.

[0017] At the same time, the surge in grinding load caused by excessive feeding is avoided, the high-efficiency driving advantage of the energy-saving motor is fully utilized, and the grinding quality is ensured while the energy consumption is significantly reduced.

[0018] 2. The elastic metal valve is connected with the elastic expansion sheet on the inner side of the adjacent elastic metal valve, so as to realize dynamic sealing of the elastic metal valve movement time gap, prevent lateral leakage of the raw materials, ensure that the raw materials are discharged only from the material falling gap, and improve the controllability of feeding.

[0019] At the same time, the disturbance paddle arranged on the rotating shaft and the reciprocating expansion and contraction of the vibrating hopper make the raw materials continuously loosen and flow in a directional manner under the synergistic action of mechanical disturbance and periodic vibration, effectively preventing caking and bridging. The stability and consistency of the flow of multi-component raw materials are improved, the grinding feeding process is optimized, the risk of clogging is reduced, and the grinding efficiency and energy saving effect are improved.

[0020] 3. The present application utilizes gravity flow and air flow blowing to combine the high-efficiency feeding of the ground raw materials into the circulating air duct by setting the lower slope in cooperation with the positive pressure air pipe. The positive pressure air pipe provides strong blowing force to ensure the stable upward movement of the raw materials, and the negative pressure air pipe adopts weak suction force to form a coordinated air flow with the positive pressure, so that the qualified fine powder is classified and collected through the rotating screen cylinder, and the coarse particles are prevented from being adsorbed and clogged on the screen surface.

[0021] The coarse particles that do not pass through the rotating screen cylinder smoothly fall back under the action of gravity and centrifugal force, realizing continuous grinding. The upward slope timely guides the upward raw materials to the side of the rotating screen cylinder, ensures the uniform entry of the gas-solid two-phase flow into the screening area, improves the stability and continuity of classification, realizes high-efficiency pneumatic conveying, accurate classification and energy-saving circulation, and significantly improves the grinding efficiency and product uniformity. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a three-dimensional structural schematic diagram of a raw material energy-saving grinding device for essence production driven by an energy-saving motor.

[0023] Figure 2 is a three-dimensional structural schematic diagram of a raw material energy-saving grinding device for essence production driven by an energy-saving motor. Figure One .

[0024] Figure 3 is a three-dimensional structural schematic diagram of a raw material energy-saving grinding device for essence production driven by an energy-saving motor. Figure Two .

[0025] Figure 4 is a three-dimensional structural schematic diagram of a raw material energy-saving grinding device for essence production driven by an energy-saving motor.

[0026] Figure 5 is a three-dimensional structural schematic diagram of a raw material energy-saving grinding device for essence production driven by an energy-saving motor. Figure Three .

[0027] Figure 6 is a three-dimensional structural schematic diagram of a raw material energy-saving grinding device for essence production driven by an energy-saving motor.

[0028] Figure 7 is a three-dimensional structural schematic diagram of a raw material energy-saving grinding device for essence production driven by an energy-saving motor. Figure One .

[0029] Figure 8 is a three-dimensional structural schematic diagram of a raw material energy-saving grinding device for essence production driven by an energy-saving motor. Figure Two .

[0030] Figure 9 is a partial stereoscopic structure section view of a transmission member of a raw material energy-saving grinding device for essence production driven by an energy-saving motor Figure One .

[0031] Figure 10 is a partial stereoscopic structure section view of a transmission member of a raw material energy-saving grinding device for essence production driven by an energy-saving motor Figure Two .

[0032] The figure marks are: 1, outer cylinder; 11, feeding pipe; 12, circulating air channel; 121, lower slope; 122, positive pressure air pipe; 13, rotating sieve cylinder; 131, negative pressure air pipe; 132, upper slope; 2, inner cylinder; 3, fixed grinding disc; 4, rotating grinding disc; 5, vibrating hopper; 51, elastic metal valve; 52, elastic expansion piece; 6, rotating shaft; 61, material falling gap; 62, disturbance paddle; 7, transmission member; 71, pull rod; 711, hinge; 712, tension spring; 72, power plate; 721, sliding block; 722, sliding rail; 73, rotating disc. DETAILED DESCRIPTION

[0033] In order to further understand the features, technical means and specific purposes and functions achieved by the present application, the present application is described in further detail below in combination with the drawings and specific embodiments.

[0034] Referring to Figures 1-6 , a raw material energy-saving grinding device for essence production driven by an energy-saving motor, comprising an outer cylinder 1 and an inner cylinder 2 arranged therein, the inner cylinder 2 is provided with a fixed grinding disc 3 and a rotating grinding disc 4 cooperating with each other, the bottom of the outer cylinder 1 is provided with an energy-saving motor for driving the rotating grinding disc 4 to rotate, the upper side of the rotating grinding disc 4 is provided with a vibrating hopper 5, the outer cylinder 1 is provided with a feeding pipe 11 extending from top to bottom and inclined to the vibrating hopper 5, the rotating shaft 6 of the energy-saving motor extends vertically from bottom to top to the inside of the vibrating hopper 5, the fixed grinding disc 3 and the rotating grinding disc 4 form a grinding gap therebetween, the outer cylinder 1 and the inner cylinder 2 form a circulating air channel 12 capable of re-transporting unqualified grinding raw materials from bottom to top to the vibrating hopper 5, the vibrating hopper 5 is of an elastic expansion structure, the lower end of the vibrating hopper 5 and the rotating shaft 6 form a material falling gap 61 gradually tapering towards the grinding center, the outer cylinder 1 is provided with a transmission member 7 linked with the rotating shaft 6 for driving the vibrating hopper 5 to periodically expand and contract, when the vibrating hopper 5 reciprocates, the material falling gap 61 is in a periodic state of getting larger and smaller, so that the raw materials fall into the center of the rotating grinding disc 4.

[0035] The outer cylinder 1 is uniformly provided with a plurality of feeding pipes 11 along the circumferential direction thereof, for respectively feeding different raw materials when mixing and grinding.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] When the vibrating hopper 5 expands to enlarge the material falling gap 61, a plurality of elastic metal valves 51 evenly distributed along the circumferential direction of the inner cylinder 2 start to swing downward and outward synchronously under the action of external driving force, with the upper end of each elastic metal valve 51 as the fulcrum and the fixed connection point on the upper half of the inner cylinder 2, the free end of each elastic metal valve 51 tilts and swings in the direction away from the rotating shaft 6, so that the gap between the elastic metal valves 51 originally inclined downward in the direction of the rotating shaft 6 is enlarged, thereby effectively enlarging the material falling gap 61 and providing a wide passage for the raw materials to flow from top to bottom into the central area of the rotating grinding disc 4.

[0043] When the elastic metal valves 51 gradually return to their original positions under their own elasticity and the traction of the transmission member 7, the free end of each elastic metal valve 51 swings back in the direction close to the rotating shaft 6, the space between the elastic metal valves 51 decreases accordingly, and the material falling gap 61 is correspondingly reduced, limiting the flow of raw materials. Thus, under the periodic driving action, each elastic metal valve 51 continues to swing downward and outward regularly with the upper end fixed point as the fulcrum, making the material falling gap 61 alternately change between enlargement and reduction, achieving precise control over the falling process of raw materials.

[0044] Referring to Figure 4 and Figure 7 , an elastic expansion sheet 52 is fixedly connected between the inner sides of every two adjacent elastic metal valves 51, and when the elastic metal valves 51 reciprocate to expand and contract, the elastic expansion sheet 52 is in a synchronous state of stretching and folding, so that the raw materials can only fall evenly into the center of the rotating grinding disc 4 through the material falling gap 61.

[0045] When the two adjacent elastic metal valves 51 swing downward and outward synchronously under the action of driving to expand, the elastic expansion sheet 52 connected between the inner sides of the two elastic metal valves 51 is stretched into a stretched state, effectively filling and sealing the gradually increasing gap between the elastic metal valves 51, preventing the raw materials from leaking from the side of the elastic metal valves 51.

[0046] When the expansion reaches the limit position, the elastic expansion sheet 52 is in the maximum stretched state, still maintaining a continuous and complete inner wall surface. When the elastic metal valves 51 start to retract toward the rotating shaft 6 and enter the contraction phase, the distance between the two elastic metal valves 51 decreases, and the elastic expansion sheet 52 loses tension and gradually folds inward under its own elasticity, forming a regular pleated structure to adapt to the continuously narrowing distance between the elastic metal valves 51.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] See Figures 2-5As shown, the top of the outer cylinder 1 is provided with a rotating sieve cylinder 13 for screening the grinding raw materials, the bottom center of the rotating sieve cylinder 13 is fixedly connected with the rotating shaft 6, and the top of the rotating sieve cylinder 13 is provided with a negative pressure air pipe 131 extending upward through the outer cylinder 1. When the positive pressure air pipe 122 and the negative pressure air pipe 131 are started synchronously, they cooperatively form a downward directional air flow circulation.

[0054] The suction air power of the negative pressure air pipe 131 is smaller than the blowing air power of the positive pressure air pipe 122. The positive pressure air pipe 122 sprays strong air flow to carry the grinding raw materials falling on the lower slope 121 and blow them upward along the circulating air duct 12. The negative pressure air pipe 131 generates weak suction force to make the qualified fine powder pass through the rotating sieve cylinder 13 and be sucked out under the combined action of blowing and negative pressure, so as to realize grading collection. The unqualified coarse particles that do not pass through the rotating sieve cylinder 13 impact the outer peripheral side of the rotating sieve cylinder 13 under the action of blowing force, and then fall down due to gravity and centrifugal force, and re-enter the grinding process.

[0055] In order to avoid that the unqualified coarse particles are adsorbed on the outer peripheral side of the rotating sieve cylinder 13 by too strong suction force, thereby affecting the screening efficiency and circulating process, therefore, the air power of the negative pressure air pipe 131 is set to be smaller than that of the positive pressure air pipe 122, so as to realize efficient and continuous pneumatic grading and circulating grinding.

[0056] Referring to Figures 2-5 As shown, the area of the top of the outer cylinder 1 opposite to the circulating air duct 12 is surrounded by an upper slope 132 for guiding the rising grinding raw materials to the peripheral side of the rotating sieve cylinder 13.

[0057] The upper slope 132 functions to timely and smoothly guide the grinding raw materials rising along the circulating air duct 12 to the peripheral side of the rotating sieve cylinder 13, so as to avoid that part of the materials stay in the outlet area of the circulating air duct 12 due to uneven air flow distribution or insufficient inertia, ensure that the gas-solid two-phase flow continuously and stably enters the screening area, and improve the grading efficiency and reliability. This creates favorable conditions for the subsequent fine powder to be efficiently discharged through the sieve hole under the combined action of negative pressure suction and positive pressure blowing, and for the coarse particles to smoothly fall back.

[0058] Referring to Figures 2-5 , Figure 9 and Figure 10 As shown, each elastic metal valve 51 is provided with one of the transmission members 7. The transmission member 7 has a pull rod 71, one end of the pull rod 71 extends radially through the outer cylinder 1 and the inner cylinder 2 in sequence and extends to the elastic metal valve 51. The inwardly extending end of the pull rod 71 is hingedly connected with the elastic metal valve 51 through a hinge 711, and the outwardly extending end of the pull rod 71 is fixedly connected with the outer cylinder 1 through a tension spring 712.

[0059] When the vibrating hopper 5 needs to be periodically expanded and contracted, the pull rod 71 is driven by external force to move reciprocatingly in the radial direction. When the pull rod 71 is pulled outward, the elastic metal valve 51 is pulled by the hinge 711 to swing outward and downward with the upper end as the fulcrum of the fixed connection point of the inner cylinder 2, thereby realizing the expansion action. At this time, the tension spring 712 is elongated to store elastic potential energy.

[0060] With the reversal of the driving direction, the pull rod 71 is retracted inward, the tension spring 712 releases the stored potential energy to generate a restoring force inward, which assists the pull rod 71 to drive the hinge 711 and the elastic metal valve 51 to swing inward, and gradually recovers to the contracted state close to the rotating shaft 6. In the entire movement cycle, the pull rod 71 accurately transmits the driving power to the corresponding elastic metal valve 51 through the hinge 711, realizes the accurate control of the swing angle and movement rhythm of the elastic metal valve 51, makes the expansion and contraction actions of each elastic metal valve 51 independent and synchronous, and changes the material falling gap 61 size in a coordinated manner, thereby ensuring the uniformity and controllability of the raw material falling.

[0061] Referring to Figures 2-5 , Figure 9 and Figure 10 , 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 rotating movement of the rotating shaft 6 into the reciprocating linear movement of the sliding block 721.

[0062] When the rotating shaft 6 rotates, the driving member is started to convert the continuous rotating movement of the rotating shaft 6 into mechanical reciprocating movement, which acts on the sliding blocks 721 respectively located at the upper and lower ends of the power plate 72. When the driving member pushes the sliding blocks 721 to move reciprocatingly along the sliding rails 722, the sliding blocks 721 drive the entire power plate 72 to move reciprocatingly synchronously, and the reciprocating movement of the power plate 72 is directly transmitted through the pull rod 71, so that the pull rod 71 moves reciprocatingly synchronously in the radial direction.

[0063] The sliding blocks 721 and the sliding rails 722 at the top and the bottom cooperatively act to ensure that the power plate 72 maintains a stable posture during the movement process, avoids twisting or deflection, thereby ensuring the accuracy and reliability of the movement of the pull rod 71, and realizing the efficient and stable conversion of the rotating movement of the rotating shaft 6 into the reciprocating linear movement of the pull rod 71, and driving the elastic metal valve 51 to complete the periodic expansion and contraction.

[0064] Referring to Figures 2-5 , Figure 9 and Figure 10As shown, the negative pressure air pipe 131 is coaxially arranged with 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 is provided with 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 flange to slide outward.

[0065] When the rotating shaft 6 rotates, the rotating disc 73 rotates synchronously, when the rotating disc 73 rotates to a position where the outer convex part is in contact with the flange of the sliding block 721, the outer convex part pushes the flange to apply a radial outward force, thereby driving the sliding block 721 to slide away from the rotating shaft 6 along the sliding rail 722 against the tension of the tension spring 712.

[0066] With the continuous rotation of the rotating disc 73, the outer convex part gradually separates from the flange of the sliding block 721, the force disappears, and the sliding block 721 slides inward along the sliding rail 722 under the restoring force of the tension spring 712, completing a reciprocating motion, and driving the elastic metal valve 51 to realize synchronous expansion and contraction.

[0067] The present application realizes periodic expansion and contraction of the vibrating hopper 5 composed of a plurality of elastic metal valves 51, cooperates with the transmission member 7 to realize periodic expansion and contraction, dynamically adjusts the material falling gap 61, and makes the raw materials fall into the center of the grinding disc in a pulse stream, effectively preventing clogging and material breakage, promoting synchronous feeding and preliminary mixing of multi-component raw materials, improving feeding uniformity and grinding stability, avoiding excessive grinding load, fully utilizing the high-efficiency driving advantage of energy-saving motor, and significantly reducing energy consumption.

[0068] During the grinding process, the elastic expansion sheet 52 is connected to the inner side of the adjacent elastic metal valve 51 to realize dynamic sealing during movement, prevent lateral leakage of raw materials, ensure that raw materials are discharged only from the material falling gap 61, and improve the controllability of feeding. In combination with the disturbance paddle 62 on the rotating shaft 6 and the reciprocating motion of the vibrating hopper 5, the raw materials are continuously loosened and flow in a directional manner under the synergistic action of mechanical stirring and vibration loosening, effectively preventing caking and bridging, and improving flow stability.

[0069] After grinding, the raw materials are stably fed into the circulating air duct 12 by the cooperation of the downward slope 121 and the positive pressure air pipe 122, the use of gravity flow and strong airflow blowing, the weak negative pressure suction cooperates with the positive pressure airflow to realize efficient classification and discharge of fine powder, and the coarse particles smoothly fall back to be re-grounded after impacting the screen cylinder, the upward slope 132 ensures that the rising materials smoothly guide the screening area, and the whole realizes efficient pneumatic conveying, accurate classification and energy-saving circulation, significantly improves the grinding efficiency and the uniformity of the finished product.

[0070] The above embodiments only express one or several embodiments of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the protection scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to 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 in it, fixed grinding disc (3) and rotating grinding disc (4) are equipped in inner cylinder (2), and they are matched with each other, the bottom of outer cylinder (1) is equipped with energy-saving motor to drive 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, and the 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; Outer cylinder (1) and inner cylinder (2) form circulation air channel (12) that can re-deliver grinding raw materials from bottom to top to vibrating hopper (5); Vibrating hopper (5) is elastically extensible structure, and the lower end of vibrating hopper (5) and the shaft (6) form falling gap (61) that gradually narrows towards grinding center, and outer cylinder (1) is equipped with transmission part (7) linked with the shaft (6) to drive vibrating hopper (5) to periodically expand and contract when vibrating hopper (5) reciprocates; When vibrating hopper (5) reciprocates, falling gap (61) is in the state of periodic expansion and contraction, so that raw materials fall into the center of rotating grinding disc (4) uniformly and continuously.

2. A raw material grinding device for essence production driven by an energy saving motor according to claim 1, characterized in that, Vibrating hopper (5) is composed of multiple elastic metal valves (51) 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), and the other end extends downward obliquely towards the direction of shaft (6), when falling gap (61) expands, elastic metal valve (51) is in the state of outward swing with the upper end as the fulcrum.

3. A raw material grinding device for essence production driven by an energy saving motor according to claim 2, characterized in that, 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, elastic expansion sheet (52) is in the state of synchronous extension and folding, so that raw materials can only fall into the center of rotating grinding disc (4) through falling gap (61) uniformly.

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

5. A raw material grinding device for essence production driven by an energy saving motor according to claim 2, characterized in that, The bottom of outer cylinder (1) is equipped with downward slope (121) to guide grinding raw materials to slide towards the lowest point of circulation air channel (12), and 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).

6. A raw material grinding device for essence production driven by an energy saving motor according to claim 5, wherein The top of outer cylinder (1) is equipped with rotating sieve cylinder (13) to screen grinding raw materials, the bottom center of rotating sieve cylinder (13) is fixedly connected with shaft (6), and 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 cooperatively.

7. A raw material grinding device for essence production driven by an energy saving motor according to claim 6, characterized in that, 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).

8. A raw material grinding device for essence production driven by an energy saving motor according to claim 6, 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).

9. A raw material grinding device for essence production driven by an energy saving motor according to claim 8, 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).

10. A raw material grinding device for essence production driven by an energy saving motor according to claim 9, wherein 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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