249 results about "Millstone" patented technology

The utility model discloses a device for reducing over-grinding of materials of a mining roller type comminutor, which belongs to the field of ore crushing and grinding processing and comprises a basic retaining ring component fixedly connected to the edge of a rotary millstone, and the basic retaining ring component and the rotary millstone are relatively static; the auxiliary material blocking ring assembly is fixedly connected to the inner wall of the middle shell, and the auxiliary material blocking ring assembly is arranged above the basic material blocking ring assembly; the auxiliary retaining ring assembly and the rotary grinding disc rotate relatively; the two auxiliary material blocking ring assemblies respectively extend to the far end of the rotary millstone along the near end of the grinding roller; a discharging opening is formed between the two auxiliary material blocking ring assemblies, and the discharging opening facilitates discharging of ground materials; according to the utility model, through the dynamic and static combined design of the double-layer retaining ring, and meanwhile, the notch is formed in the static retaining ring, so that materials which are not ground are blocked and conveyed to the grinding roller for grinding, and all the ground materials are discharged and sorted, and the problems of repeated grinding and excessive grinding of the materials are reduced.

The utility model relates to a grinding device, in particular to a raw material cold grinding device for flour processing. Comprising a shell, a feeding hopper, a rotating motor, a discharging pipe, a radiator, a condensation pipe, a water pump, a lower grinding disc, a scraper, an upper grinding disc and a supporting frame, the shell is arranged on the outer wall of the supporting frame, the radiator is arranged on the left side of the top end of the shell, the rotating motor is arranged at the bottom end of the supporting frame, and the discharging pipe is arranged on the front side of the bottom end of the supporting frame; an upper millstone matched with the lower millstone is arranged on the upper portion in the shell, a feeding hopper is arranged in the middle of the top end of the shell, a condensation pipe is arranged at the top end of the upper millstone, and a water pump is arranged on the left side of the top end of the upper millstone. The cooling system is composed of the water pump, the radiator and the condensation pipe, the water pump is pressurized to enable water flow to circularly flow in the pipeline, the water flow absorbs heat on the millstone, and then the heat is discharged through the radiator.

The invention discloses an energy-saving and efficient vertical mill, and belongs to the technical field of grinding and pulverizing equipment. The vertical mill comprises a base, a round chassis, a cylindrical shell and the like, wherein a lower cylinder, a millstone, an upper cylinder, a circular ring partition plate and the like are arranged in the cylindrical shell. The millstone is in a circular groove shape and driven by a millstone motor, the included angle between the generatrix of the inner side wall face of the grinding ring and the horizontal plane is 45-75 degrees, the lower end of the center line of the roller shaft inclines towards the rotating direction of the millstone, and materials can be efficiently ground. According to the equipment, material sorting and conveying are achieved through an annular air inlet channel, a cage type separator and the like, the annular air inlet channel is provided with a coarse slag scraping plate and a coarse slag outlet, and the cage type separator is matched with a fine powder discharging bin and a fine powder discharging pipe to complete coarse powder and fine powder separation. In addition, an elastic mechanism is arranged for mounting the grinding roller, so that equipment vibration is reduced. The vertical mill is high in grinding efficiency, remarkable in energy conservation, dual-purpose, good in stability, convenient to operate and capable of meeting the grinding and pulverizing requirements of various materials and effectively solving many problems existing in a traditional vertical mill.

The invention discloses a device and a method for grinding and polishing microspheres under the assistance of an ultrasonic energy field, the device comprises an upper millstone component and a lower millstone component, and a to-be-processed sphere is arranged between an upper millstone of the upper millstone component and a lower millstone of the lower millstone component; the upper millstone assembly comprises a transmission assembly, a bearing assembly, a second connecting assembly, a spring assembly and an upper millstone which are sequentially connected, and the second connecting assembly can generate axial ultrasonic vibration. A rigid connecting piece in an existing device is replaced with the second connecting assembly capable of generating ultrasonic vibration, so that axial ultrasonic vibration is introduced, and radial ultrasonic vibration is further introduced through the radial ultrasonic assembly; the ultrasonic energy field is used for assisting in machining, so that the surfaces of the tiny balls with small sizes are rapidly and slightly removed, the rotation angle of the tiny balls is increased, the enveloping degree of a grinding track is higher, and higher roundness and surface quality are obtained.

A grinding disc set comprises a movable grinding disc and a fixed grinding disc which can rotate relatively. The fixed millstone is mounted above the movable millstone, and an adjustable grinding gap exists between the movable millstone and the fixed millstone; a cover plate for suspending the fixed millstone is arranged on the fixed millstone, and an adjusting assembly for adjusting the height of the fixed millstone is arranged on the cover plate; a water cooling flow path for performing constant-temperature control on the movable millstone is formed on the movable millstone, and a water flow divider for supplying water and discharging water to the water cooling flow path is mounted at the bottom of the movable millstone; compared with the prior art, the fixed millstone is installed on the movable millstone, rotation control is conducted on the movable millstone, and height control is conducted on the fixed millstone, so that a grinding gap always exists between the fixed millstone and the movable millstone, and the fixed millstone and the movable millstone are only in contact with materials in the relative rotation process; mutual abrasion between the fixed millstone and the movable millstone is reduced, abrasion loss of the fixed millstone and the movable millstone is reduced, and heat production of the fixed millstone and the movable millstone is also reduced.

The utility model provides a dual-purpose semi-automatic tool sharpener which comprises a frame, an abrasive belt grinding mechanism, a millstone grinding mechanism and a water tank are installed on the frame, a driving shaft and a tensioning shaft are arranged on the frame in parallel, a grinding abrasive belt is wound on the driving shaft and the tensioning shaft, one side of the driving shaft extends outwards and is provided with a driven chain wheel, and the other side of the driving shaft is provided with a driven chain wheel. A motor is installed on the frame, a driving chain wheel is installed on an output shaft of the motor, the driving chain wheel and a driven chain wheel are in transmission through a chain, the millstone polishing mechanism is installed on the side face of the frame, a sliding groove is fixedly formed in the position, on one side of the chain wheel, of the frame, and a sliding block is installed in the sliding groove and protrudes out of a strip-shaped hole to form a protruding shaft. An eccentric shaft is arranged on the outer side face of the driven chain wheel, and a driving rod is installed between the eccentric shaft and the protruding shaft. According to the dual-purpose semi-automatic tool sharpener, an abrasive belt grinding system and a grinding stone grinding system are integrated, the water tank is arranged in the dual-purpose semi-automatic tool sharpener to achieve wet grinding, the tool sharpening efficiency is remarkably improved, and a blade is protected.

The utility model relates to the technical field of millet processing, and provides a milling device for millet processing and production, which comprises a tank body, a first grinding disc is rotatably arranged at the upper part in the tank body, the first grinding disc is in a circular truncated cone shape, and one end with smaller diameter is positioned at the lower end; the first grinding disc sleeves the periphery of the lower side of the first grinding disc; the smaller-diameter end of the second grinding disc is fixedly arranged at the lower end of the first grinding disc; the second grinding disc is arranged in the tank body and sleeves the periphery of the upper side of the second grinding disc, and the second grinding disc is communicated with the first grinding disc; the third grinding disc is arranged at the lower end of the second grinding disc; a discharging pipe is arranged in the middle of the lower end of the third grinding disc; the filter screen is funnel-shaped and is positioned below the second millstone, and millet residues on the filter screen slide into the third millstone from the filter screen. By means of the technical scheme, the problems that according to an existing powder grinding device, regrinding treatment on raw materials which are not fully ground is tedious, and the grinding efficiency is low are solved.

The utility model discloses a millstone for a grain moisture test crushing mill in the field of crushing equipment, which comprises a static millstone and a movable millstone, a plurality of gear rings which are of concentric circle structures and can be meshed with each other are respectively arranged on the opposite surfaces of the static millstone and the movable millstone, and a plurality of large gear rings close to the inside are wider and higher than a plurality of small gear rings close to the outside. And a plurality of material guide grooves which penetrate through all the gear rings and divide the gear rings into a plurality of gear blocks are further formed in the opposite surfaces of the static grinding disc and the movable grinding disc. The gear rings and the material guide grooves are arranged on the static grinding disc and the movable grinding disc, materials move outwards along the material guide grooves and gaps among the teeth in the grinding process and are ground by the tooth blocks when passing through the connecting portions of the adjacent gear rings, meanwhile, due to the fact that the gaps of the large gear rings on the inner side are large, large particles are crushed firstly, the gaps of the small gear rings on the outer side are small, and then the particles are ground into powder, and the grinding efficiency is greatly improved. And the powder fineness is ensured, the high powder discharging efficiency is achieved, the problem that the temperature rise is too large due to too fast grinding can be avoided, and the moisture loss in the grinding process is reduced.

The utility model relates to the technical field of electric cooker inner container machining, in particular to an electric cooker inner container trimming device which comprises a trimming table and a pressing assembly, the middle of the trimming table is fixedly connected with a containing assembly, the pressing assembly is installed above the trimming table, and one side of the upper surface of the trimming table is fixedly connected with an edge grinding assembly. The edge grinding assembly comprises a supporting column, the top end of the supporting column is rotationally connected with an adjusting plate through a connecting base, one side of the top end of the adjusting plate is fixedly connected with a supporting box, a movable groove is formed in the middle of the supporting box, the inner side of the movable groove is rotationally connected with a grinding disc with a shaft, and the inner side of the grinding disc with the shaft is fixedly connected with a driven gear. The inner side of the supporting box is fixedly connected with an anti-impact power assembly. The impact-resistant power assembly comprises a mounting plate, the impact force generated in the cutting-in and cutting-out process of the millstone is effectively absorbed or weakened, the operation stability of the millstone is guaranteed, and the problem of the quality of an inner container of an electric cooker caused by vibration is avoided.

The utility model belongs to the field of stone mill ultra-cylinders, and particularly relates to a stone mill ultra-cylinder for producing ground sesame seed oil, which comprises an ultra-cylinder body, a stone mill disc is mounted in the ultra-cylinder body, a discharge port is mounted on one side of the ultra-cylinder body, an annular spray pipe is mounted on the inner wall of the ultra-cylinder body, and a plurality of spray heads are mounted on the spray pipe. A rotating ring is rotatably mounted at the top of the super barrel body, a connecting seat is fixedly mounted at the top of the rotating ring, a connecting rod is fixedly mounted on one side of the connecting seat, a sliding sleeve movably sleeves the connecting rod, a locking mechanism is arranged between the sliding sleeve and the connecting rod, and a vertical rod is fixedly mounted at the bottom of the sliding sleeve. The cleaning device is reasonable in design, water can be sprayed to the gap between the super cylinder body and the stone mill disc through the spray head of the spray pipe, meanwhile, the U-shaped brush plate can rotate in the gap between the super cylinder body and the stone mill disc, and the purpose of automatically cleaning the super cylinder body can be achieved.

The utility model relates to a distributor mechanism of a vertical flour mill, which comprises a material receiving conical hopper mounted on the upper side of a millstone of the vertical flour mill, a blanking pipe is mounted at the lower end of the material receiving conical hopper, and at least three vertical fixing rods are mounted on the outer wall of the blanking pipe at intervals along the circumferential direction. Scraping plates matched with the vertical fixing rods to form an inverted T shape are fixed to the lower ends of the vertical fixing rods. The distributing device is favorable for better scraping materials into the grinding roller, uniform distribution is realized, and the material scraping effect is good.

The utility model relates to the technical field of millstones, and discloses a millstone for grain processing, which solves the problems in the background technology, and comprises a material receiving disc, a material outlet is arranged on the material receiving disc, a lower millstone is arranged on the material receiving disc, an upper millstone is arranged on the lower millstone, an air duct is arranged in the upper millstone, and the air duct is communicated with the material receiving disc. Cooling fins are arranged on the upper millstone, a fixing support is arranged above the upper millstone, the bottoms of the two sides of the fixing support are connected to material receiving discs respectively, a rotating motor is arranged at the bottom of the horizontal part of the fixing support, the output end of the rotating motor is connected with the upper millstone through a connecting piece, and a feeding port is formed in the upper millstone. The device has the advantages that the millstone can be effectively prevented from being overheated during long-time high-speed operation, the problem that the temperature of existing millstone equipment rises due to poor heat dissipation is solved, and grains with high fat content and the like are prevented from being overheated and deteriorated.

The utility model relates to the technical field of food processing equipment, and particularly discloses an anti-accumulation rice flour grinding device which comprises a shell, the shell is a grinding device shell, an opening in the bottom end of the shell is in short butt joint with a supporting frame, a first grinding disc is placed at the upper end of the supporting frame, and a second grinding disc is installed at the upper end of the first grinding disc. Wherein the first millstone and the second millstone form one of main structures for grinding rice noodles. According to the anti-accumulation rice flour grinding equipment and device, when rice flour raw materials are fed, the rice flour raw materials are guided to spirally slide down through a spiral drainage plate on the inner wall of a feeding hopper and are matched with the change of the distance between a limiting block and the feeding hopper and a strip-shaped opening of a material uniformizing disc, so that the raw materials uniformly enter a grinding area, and accumulation at an inlet is avoided; the cleaning frame in the second moving frame can slide by attaching to the inclined surfaces of the first millstone and the second millstone, rice flour powder possibly accumulated on the millstone is cleaned in time, rice flour is prevented from being accumulated in the equipment, and it is guaranteed that the rice flour grinding process is smooth.

The invention discloses an adjustable dynamic and static ring for a coal mill, and relates to the technical field of coal mills.The upper portion of a millstone is provided with an annular milling channel, one side of the bottom of the millstone is connected with a dynamic ring mechanism through a bolt, the radial outer wall of the dynamic ring mechanism is in lap joint with a bearing mechanism, and the upper portion of the bearing mechanism is provided with a first static ring mechanism; a second static ring mechanism is arranged on the upper portion of the first static ring mechanism, the movable ring mechanism is located below the second static ring mechanism, gaps are reserved among the movable ring mechanism, the bearing mechanism, the first static ring mechanism and the second static ring mechanism, and an L-shaped channel is formed. According to the adjustable dynamic and static ring for the coal mill, an air duct and a nozzle are redesigned, the air duct nozzle is subjected to Venturi design, the air speed is gradually increased from an inlet to an outlet of the nozzle and reaches the maximum at the throat part of the nozzle, the ventilation resistance can be reduced, a sealing structure is redesigned, a dynamic and static gap can be ensured, primary air leakage is reduced, and primary air is efficiently utilized; pulverized coal can be carried more effectively, and the output of the coal mill is ensured.

Mill with a grinding control system comprising a fixed housing (6) connected to the opening of a container holding the product to be ground, in which a static counter-millstone (7) is placed, wherein this assembly is linked to a rotating part (5) which is angularly movable on the fixed housing (6), rotating part (5) in which a millstone holder part (3) is placed, to which a millstone (4) is solidly linked, wherein the millstone holder part (3) includes openings (32) for the discharge of the ground product, a closure cover (1), and means for controlling the relative vertical distance between the millstone (4) and the counter-millstone (7), characterized in that the means for controlling are implemented in a regulator (2) with a disc-shaped design, which is placed in one of the ends of the millstone holder part (3), regulator (2) with openings (21) for the passage of the ground product product,with projections (22) for manual rotary actuation thereof, and a circumferential skirt (23) which is designed to adapt externally to the millstone holder part (3), which skirt (23) internally includes pins (24) which move in inclined grooves (34) provided on the outer surface of the millstone holder part (3), and which regulates the position between the millstone (4) and the counter-millstone (7), with the special feature that the millstone holder part (3) includes external vertical guides (33) via which the rotating part (5) is linked by means of internal vertical guides (51) provided in the latter, wherein the millstone holder part (3) is integral with the angular movement of the rotating part (5) and is vertically movable with respect to it via the internal vertical guides (51), wherein the vertical movement between the regulator (2) and the rotating part (5) is prevented by stops.

The utility model discloses a protective cover structure of a grinding disc of a double-end-face grinding machine, and relates to the technical field of mechanical equipment. The grinding machine component comprises a grinding machine assembly, a protective cover body arranged at the top of the grinding machine assembly and an observation window arranged in the protective cover body, and the situation in the protective cover body can be directly observed through the observation window. The cleaning part comprises a rotating assembly arranged in the shield body, a connecting assembly arranged on one side of the rotating assembly and a cleaning assembly arranged on one side of the connecting assembly; the rotating assembly comprises a handle arranged on the shield body and a connecting block arranged at the end of the handle. According to the millstone shield, the observation window is formed in the shield body, observation of an observer is facilitated, in addition, the observation window is cleaned through the rubber strip, the good sight line of the observer is guaranteed, and the problem that an existing millstone shield is inconvenient to observe is solved.

The application discloses a kind of millstone positioning mechanism, including millstone adjusting ring, millstone component and millstone box body, the millstone component includes millstone support and the first millstone being arranged on millstone support, and the first millstone is screwed with millstone adjusting ring;The millstone box body is around the outer periphery of millstone adjusting ring and the accommodating cavity that can accommodate millstone support is opened on the millstone box body.Wherein, the accommodating cavity is equipped with positioning column, and the limiting lug that is matched with positioning column is equipped on the millstone support.Therefore, when user thread is screwed into the first millstone in millstone adjusting ring until the limiting lug on millstone support and the positioning column in accommodating cavity are abutted, at this time, user can judge that the first millstone has been screwed in place from sensory, to ensure that the first millstone of millstone component is in initial setting position each time assembly, to improve grinding accuracy.In addition, the application also provides coffee machine with it.

The utility model relates to the technical field of electrophoretic paint preparation, concretely relates to a kind of electrophoretic paint preparation device, comprising: base, fixedly installed jar in the base, grinding mechanism for grinding raw material in the jar;The grinding mechanism includes: transmission belt, the transmission belt drives transmission shaft rotation, fixedly installed gear on the transmission shaft, the gear is engaged with inner ring gear, fixedly installed with fixed ring on the inner ring gear, limit rail is equipped on the fixed ring, limit rail is slidably installed with limit rod, the limit rod is fixedly connected on the hopper, the lower end of the hopper is communicated with lower millstone, and the lower millstone is ground with grinding block raw material.The utility model in the specification, when the lower millstone rises and cooperates with grinding block and grinds raw material, when the lower millstone drops, part is located below liquid level, so that raw material is soaked in solution, and fine raw material particle passes through through-hole, to facilitate next grinding, improve grinding efficiency.

The utility model discloses a material distributing and discharging device of a vertical roller mill, and belongs to the technical field of material distributing and discharging. A material guide cone is mounted above a millstone in an ash hopper of the vertical roller mill material distributing and discharging device; an annular material area for collecting returned materials of the powder concentrator is formed between the material guide cone and the ash hopper; a plurality of first material distribution cones are arranged between the material guide cone and the ash hopper in the circumferential direction, and the annular material area is equally divided into a plurality of hopper-shaped material areas by the first material distribution cones; a first feed opening is formed in each hopper-shaped material area; the first discharging pipe is arranged on the outer side of the ash hopper and communicates with the first discharging opening, a feeding nozzle is installed at the lower end of the first discharging pipe, and the first discharging pipe extends to the feeding side of the grinding roller through the feeding nozzle; the second material distributing cone is arranged between the two first material distributing cones; the two second discharging openings are formed in the two sides of the second material distribution cone correspondingly and located at the bottom of the first material distribution cone. The Y-shaped discharging pipe is arranged on the outer side of the ash hopper, and the two ends of the upper portion of the Y-shaped discharging pipe communicate with the two second discharging openings correspondingly. According to the device, materials can be finely sorted, and the supplied materials flow out stably.

The utility model relates to the technical field of pigment grinding equipment, and discloses a color painting pigment grinding device which comprises a trapezoidal base, the inner wall of the trapezoidal base is fixedly connected with a direct current motor, the output end of the direct current motor is fixedly connected with a gear, and the middle of the top end of the trapezoidal base is rotationally connected with a hollow rotary grinding disc. A gear ring is fixedly connected to the outer side of the hollow rotating millstone, the gear is connected with the gear ring in a meshed mode, and a plurality of first grinding grooves are formed in the inner wall of the hollow rotating millstone. According to the utility model, a valve handle is rotated to move a threaded rod, a gap is adjusted, a limiting rod ensures the moving direction, a direct-current motor is started, a gear drives a gear ring to enable a hollow rotating millstone to rotate, pigment reaches a required state under the action of a grinding groove I and a grinding groove II, and a wear-resistant block and a grinding block are further ground; and the ground pigment falls off through the hollow part of the hollow rotary grinding disc, so that the grinding degree of the pigment can be regulated and controlled.

The present invention proposes a geological exploration sample crushing device, which belongs to the field of geological exploration technology. It includes a feeding mechanism, a crushing mechanism and a storage mechanism arranged in sequence. The rock and soil are transported to the feeding port of the coarse crushing device by a conveyor belt, and are preliminarily crushed by the crushing gear ring of the primary crushing structure. The rock and soil that meet the requirements are screened by the screening net and then enter the fine crushing device. The rock and soil that do not pass through the screening net enter the secondary crushing structure and are further crushed by the crushing disk and the stone mill drive ring. The rock and soil that meet the requirements enter the fine crushing device. The fine crushing device uses a crushing wheel to finely crush the rock and soil. After crushing, the smaller material can be discharged from the bottom of the shell through the sieve hole and transported to the storage mechanism for storage; it can enter the crushing mechanism of the corresponding level across levels, effectively saving the occupation of the crushing space and improving the crushing efficiency, so that the crushing accuracy and quality are greatly improved.

The utility model discloses a coffee powder grinding device which comprises an upper grinding disc and a lower grinding disc. A plurality of blades are arranged on one surface of each of the upper millstone and the lower millstone; one surface of the upper millstone provided with the blades is opposite to one surface of the lower millstone provided with the blades; a penetrating through hole is formed in the upper grinding disc; an upper millstone connecting seat is arranged above the upper millstone; the upper millstone connecting seat is provided with a through hole; an arc-shaped groove is formed in the upper portion of the upper grinding disc connecting base. The depth of the arc-shaped groove is gradually changed from deep to shallow; a gap adjusting gear disc is further arranged above the upper grinding disc connecting seat; a pin column is arranged below the gap adjusting gear disc; the pin column is matched with the arc-shaped groove; a penetrating through hole is formed in the center area of the gap adjusting gear disc. The main shell wraps the upper millstone and the lower millstone; the upper millstone connecting seat is connected with the main shell through an elastic supporting column; when the gap adjusting gear disc is rotated, the upper grinding disc moves in the vertical direction; a power shaft is arranged below the lower grinding disc; a discharge hole is formed in the side surface of the main shell; coffee powder obtained after grinding through the blades on the upper grinding disc and the blades on the lower grinding disc is discharged from the discharging port.

The utility model discloses a double-station efficient grinding millstone device, and belongs to the technical field of grinding millstones. A double-station efficient grinding millstone device comprises a millstone rack, and two polishing stations are arranged on the upper side of the millstone rack; a rough grinding station and a fine grinding station are arranged between the two polishing stations; a sliding rail, a first support and a second support are arranged at the upper end of the millstone rack. The first support and the second support are matched with the sliding rail to be in sliding connection. The moving path of the first support comprises a rough grinding station, a fine grinding station and a polishing station. The moving path of the second bracket comprises a rough grinding station, a fine grinding station and another polishing station; the first support and the second support are both connected with aluminum bars so as to clamp a product to be machined. During machining, the first support and the second support alternately move to a rough grinding station and a fine grinding station. Double-station polishing can be achieved, efficient polishing operation is achieved, and the working efficiency is improved.

The utility model provides a heat-resistant millstone capable of preventing overheating deformation, and relates to the technical field of millstone equipment. The grinding disc assembly is composed of a mounting frame, a driving motor, an adjusting roller mechanism and a fixing roller mechanism, the mounting frame is arranged on one side of the mounting frame, the adjusting roller mechanism and the fixing roller mechanism are arranged on the other side of the fixing roller mechanism, liquid in the collecting box is sprayed out after passing through a spraying head through the arrangement of a water pump, spraying cooling is conducted on the surface of the grinding belt, and the grinding efficiency is improved. When the polishing belt with water drops moves to the air blowing cover, under the action of an air blower, external air is pumped out after passing through the air blowing cover, the water drops attached to the surface of the polishing belt are separated, the separated water drops fall on a flow guide plate or directly fall on a bottom plate of the protection assembly, and at the moment, the water drops on the flow guide plate are separated from the air blowing cover under the action of an inclined structure. And the liquid is guided at the water guide cotton plate and is adsorbed by the water guide cotton plate, and the liquid adsorbed on the water guide cotton plate falls into the protection assembly again to be stored.

The invention relates to the technical field of stone mill flour equipment, and discloses stone mill flour equipment and a process, the stone mill flour equipment comprises a rack, the bottom of the rack is provided with a circular disc sieve, the top of the rack is fixedly provided with a fixed millstone, the top of the rack is provided with a rotary millstone, and the top of the rotary millstone is fixedly provided with a counterweight circular plate. The machine frame, the circular disc screen, the fixed millstone, the rotary millstone, the counter weight circular plate, the fixed support, the storage box, the material stock sensor, the feeding cylinder, the sealing dust cover and the air suction cylinder are used in cooperation, the mode that an upper millstone is changed into a fixed disc in the past is adopted, the lower millstone is adopted as the fixed disc, and the gravity of the upper millstone serves as the pressure between the two millstones; the millstone combination is arranged according to the position of the millstone combination and can be increased or decreased according to the grinding condition so as to achieve the best grinding effect, and special transmission and clutch mechanisms are adopted, so that the millstone combination is clutched according to the starting and material breaking conditions so as to ensure that the millstone cannot be subjected to empty grinding.

The utility model relates to the technical field of grinding devices, and discloses an anti-blocking fine grinding device for flour processing, which comprises a shell, a feed port arranged at the top of the shell, a discharge port arranged at the bottom of the shell, a discharge port arranged on the outer surface of the shell, and a grinding disc fixedly connected with the inner wall of the shell, a motor is fixedly connected to the top of the shell, a rolling part is fixedly connected to the output end of the motor, a dredging assembly is arranged on the top of the inner wall of the shell, in order to enable the equipment to better grind materials, the motor is started to enable the rolling part to rotate, meanwhile, the grinding disc is matched to grind the materials, and when the rolling part rotates, the dredging assembly is arranged on the inner wall of the shell. According to the device, the stirring rod fixedly connected to the outer surface of the rotating shaft of the rolling piece can rotate together, and the stirring rod can make contact with the protruding block when rotating and fixing are conducted, so that the end of the movable block is collided, a connecting rod drives materials in the feeding port to move, and the materials in the feeding port are dredged.

The utility model relates to the field of honing rods, and discloses a multifunctional honing rod which comprises a honing rod body and a polishing head fixed at the bottom end of the honing rod body, a rotating sleeve is matched with the top end of the outer side of the polishing head in a threaded mode, and a plurality of installation grooves are formed in the lower portion of the rotating sleeve. A plurality of mounting grooves are formed in the outer side of the grinding head in a surrounding mode along the center of the grinding head, protruding blocks are fixed in the mounting grooves, grinding stones are mounted in the mounting grooves, and the rotating sleeve is screwed to rotate and descend on the grinding head, so that the upper half sections of the mounting grooves are shielded, and the mounting length of the mounting grooves is shortened; and after the rotating sleeve rotates and descends, the upper half section of the mounting groove can be blocked, so that chippings generated during grinding are prevented from entering the mounting groove, and meanwhile, the mounting stability of the short millstone can be improved.

The utility model discloses a flat grinding machine with a lifting type clamping mechanism, which comprises a rack, and one or more grinding mechanisms are connected onto the rack; the grinding mechanism comprises a millstone motor vertically fixed on the rack, and a horizontal millstone is fixed at the top end of a main shaft of the millstone motor; the rack is slidably connected with one or two mounting seats which are arranged on the grinding mechanisms in a portal frame shape in a striding mode, the sliding path of the mounting seats on the rack passes through all the grinding mechanisms, and driving parts are connected between the mounting seats and the rack; fixing blocks are vertically and slidably connected to the two sides of the top of the mounting base, and a vertical electric telescopic rod is connected between at least one fixing block and the mounting base; a horizontal clamping row seat is rotationally connected between the two fixing blocks, and a clamping row used for clamping a grinding piece is fixedly connected to the clamping row seat. The automatic polishing machine not only can improve the polishing precision, but also has the advantages of being high in equipment operation stability, convenient in feeding clamping and discharging ejection control operation and good in environmental protection property.

The invention discloses a secondary crushing mechanism and a vertical roller ore grinding stone mill, and belongs to the technical field of grinding equipment.The vertical roller ore grinding stone mill comprises a mill shell and a millstone arranged in the mill shell, an annular gap communicated with a discharging bin is formed between the mill shell and the outer edge of the millstone, and the outer edge of the millstone is provided with a rotary retaining ring rotating along with the millstone; a suspension retaining ring is arranged above the rotary retaining ring, and an annular gap which is used for discharging grinding materials and is communicated with the annular gap is formed between the suspension retaining ring and the rotary retaining ring; and a secondary crushing mechanism is arranged in the annular gap and comprises a crushing moving ring arranged on the millstone and a crushing static ring arranged on the mill shell. The synergistic effect of the suspension sorting mechanism and the secondary crushing mechanism not only realizes accurate control and intelligent screening of material granularity, but also effectively relieves the problems of over-grinding and high material returning rate, and enhances the adaptability and reliability of a wet grinding system under complex material conditions.