阅读说明：本技术 一种用于制取糊粉层的低温高效能集成石磨 (Low-temperature high-efficiency integrated stone mill for preparing aleurone layer ) 是由 郭德炳 于 2021-08-12 设计创作，主要内容包括：本发明公开了一种用于制取糊粉层的低温高效能集成石磨,包括一基座,所述基座上方设有用于筛分的筛组,筛组上方设有用于粉碎研磨的磨组,所述基座、磨组及筛组两两之间均通过法兰盘外围固定连接；所述磨组中心贯穿设有磨组中心管,所述筛组中心贯穿设有筛组中心管,所述磨组中心管和筛组中心管均通过分板对应设有多个进料通道,且所述磨组中心管和筛组中心管之间均通过第一花键连接在一起；所述磨组中心管顶部连接有进料斗,所述筛组中心管与基座内部设有的动力机构连接,使各筛组中心管和磨组中心管实现同步转动。与现有技术相比,本发明设计合理,对糊粉层的获取率和效率高,同时获得的经济效益较高。(The invention discloses a low-temperature high-efficiency integrated stone mill for preparing an aleurone layer, which comprises a base, wherein a screen group for screening is arranged above the base, a mill group for crushing and grinding is arranged above the screen group, and the base, the mill group and the screen group are fixedly connected with each other through the periphery of a flange plate; the grinding group center penetrates through a grinding group center pipe, the screening group center pipe penetrates through the screening group center pipe, the grinding group center pipe and the screening group center pipe are respectively and correspondingly provided with a plurality of feeding channels through the separating plates, and the grinding group center pipe and the screening group center pipe are connected together through a first spline; the top of the grinding group central tube is connected with a feed hopper, and the screening group central tube is connected with a power mechanism arranged in the base, so that the screening group central tubes and the grinding group central tubes synchronously rotate. Compared with the prior art, the invention has reasonable design, high acquisition rate and efficiency of the aleurone layer and higher economic benefit.)

1. A low-temperature high-efficiency integrated stone mill for preparing an aleurone layer comprises a base and is characterized in that: a screen group for screening is arranged above the base, a grinding group for crushing and grinding is arranged above the screen group, and the base, the grinding group and the screen group are fixedly connected with each other through the periphery of a flange plate; the grinding group center penetrates through a grinding group center pipe, the screening group center pipe penetrates through the screening group center pipe, the grinding group center pipe and the screening group center pipe are respectively and correspondingly provided with a plurality of feeding channels through the separating plates, and the grinding group center pipe and the screening group center pipe are connected together through a first spline;

the top of the grinding group central pipe is connected with a feed hopper, and the screening group central pipe is connected with a power mechanism arranged in the base, so that the screening group central pipes and the grinding group central pipes synchronously rotate;

the grinding group comprises a grinding disc frame, an upper grinding disc, a middle grinding disc and a lower grinding disc are arranged in the grinding disc frame from top to bottom, the upper grinding disc and the lower grinding disc are static grinding discs, the middle grinding disc is a movable grinding disc, a grinding group central pipe penetrates through the centers of the upper grinding disc, the middle grinding disc and the lower grinding disc, the outer wall of the grinding group central pipe is in positioning sleeve joint with the middle grinding disc, an upper outlet is formed in the outer wall of the grinding group central pipe above the middle grinding disc, the upper outlet is communicated with one feeding channel and used for feeding between the upper grinding disc and the middle grinding disc, a lower outlet is formed in the lower part of the middle grinding disc, and the upper outlet is communicated with the other feeding channel and used for feeding between the middle grinding disc and the lower grinding disc;

a plurality of groups of inclined slide rail grooves are arranged along the inner wall of the grinding disc frame, each group of slide rail grooves is divided into an upper slide rail groove and a lower slide rail groove, the upper slide rail grooves and the lower slide rail grooves are respectively matched and slidably connected with the rollers arranged on the outer sides of the upper grinding disc and the lower grinding disc, and in a stop state, the rollers of the upper grinding disc are positioned close to the opening of the slide rail grooves, and the rollers of the lower grinding disc are positioned close to the groove bottoms of the slide rail grooves; the grinding disc frame is provided with a pressure clutch mechanism, and the upper grinding disc and the lower grinding disc are clamped tightly by the pressure clutch mechanism to generate pressure, so that the requirement of crushing and grinding materials during working is met;

the screen group comprises a screen disc frame, the inside of the screen disc frame is connected with a screen body through an elastic supporting mechanism, a screen bottom is arranged inside the screen body, a screen frame for screening materials is arranged above the screen bottom, an inner pressure disc is arranged above the screen frame and close to the center, the central pipe of the screen group penetrates through the screen bottom, the screen frame and the center of the inner pressure disc, a sunken inclined channel for collecting undersize materials is arranged on the surface of the screen bottom, a material receiving disc cavity for collecting oversize materials is arranged in the center of the screen bottom, a vibrating mechanism is further arranged on the back of the screen bottom, and the material receiving disc cavity, the screen frame and the inner pressure disc are connected through flange holes;

the top and the bottom of the sieve tray frame and the grinding tray frame are respectively provided with a receiving frame for sleeving two ends of a sieve group central pipe or a grinding group central pipe, a first material receiving disc is fixed on the receiving frame positioned at the bottom of the sieve tray frame and sleeved on the outer wall of the sieve group central pipe, the top of the first material receiving disc extends into the inner part of a material receiving disc cavity and has a certain gap with the inner wall of the material receiving disc cavity, and when the sieve group central pipe rotates, the first material receiving disc is in a static state; two oversize material feeding holes are formed in the outer wall of the central tube of the screen group at the sleeving position of the first material receiving disc, and the oversize material feeding holes are respectively communicated with two feeding channels; the outer wall of the screen body is provided with a screen underflow discharge port of the sunk inclined channel, the screen underflow discharge port penetrates through the screen tray frame to be connected with a recovery pipeline, the recovery pipeline is correspondingly connected with a recovery connecting pipe outside the screen group, and the screen body is enabled to realize vibrating screen materials through a vibrating mechanism arranged on the back of the screen bottom;

and the oversize material receiving mechanism is arranged above the power mechanism inside the base and is used for collecting oversize materials from the central tube of the screen group.

2. The low-temperature high-efficiency integrated stone mill for preparing the aleurone layer as claimed in claim 1, wherein: the end surfaces of the screen group central pipe and the grinding group central pipe are provided with spline grooves; the first spline is divided into an upper part and a lower part through a middle connecting disc, and the upper part and the lower part are in matched clamping connection with the spline grooves, so that the screening group central tube and the grinding group central tube which are randomly superposed up and down are connected together; the connection pad includes an outer ring, and the inner wall sets up a plurality of supports, and the other end and the first spline outer wall connection of this support, the surface and the bottom surface of outer ring and support all are equipped with the recess, when each sieve group center tube with grind group center tube and connect, through the joint in spline groove, make sieve group center tube and grind group center tube outer wall and arrange the recess of outer ring in inside, divide the board to arrange the recess of support in inside.

3. The low-temperature high-efficiency integrated stone mill for preparing the aleurone layer as claimed in claim 1, wherein: the base comprises a power base and a cover body sleeved above the power base, wherein a power mechanism is arranged on the power base, and the output end of the power mechanism is connected with a coupler; a bearing frame seat is arranged on the inner wall of the cover body above the power mechanism, a bearing frame is fixed on the bearing frame seat, the bearing frame comprises a support frame and a bearing positioned in the center of the support frame, and a bearing sleeve is further arranged outside the bearing;

the oversize material receiving mechanism is arranged above the bearing frame and comprises a second spline clamped with the spline groove of the last layer of screen group central pipe and a second material receiving disc fixed on the bearing sleeve, wherein the second spline is provided with a spline shaft which is connected with the coupler after being sleeved inside the bearing; the center of the second material receiving disc is sleeved with the outer wall of the spline shaft, a sealing ring is arranged at the sleeved position, and material shifting teeth are further fixed on the outer wall of the spline shaft in the inner cavity of the second material receiving disc; and an oversize material outlet is formed in the bottom of the second material receiving disc and conveys oversize materials to the outside of the base through connecting an inclined pipeline.

4. The low-temperature high-efficiency integrated stone mill for preparing the aleurone layer as claimed in claim 3, wherein: the bearing frame on the grinding wheel frame adopts a bearing frame, a bearing sleeve positioned on the top bearing frame is embedded into an inner groove arranged on the surface of the upper grinding wheel, a bearing sleeve positioned on the bottom bearing frame is embedded into an inner groove arranged on the bottom surface of the lower grinding wheel, and the upper end and the lower end of a central pipe of the grinding unit are respectively sleeved in the bearings; the peripheries of the two bearing frames are fixed with the top and the bottom of the grinding disc frame through the flange plates.

5. The low-temperature high-efficiency integrated stone mill for preparing the aleurone layer as claimed in claim 1, wherein: a flange is fixed on the outer wall of the central pipe of the grinding set, a positioning hole in the flange is sleeved with a positioning column arranged at the bottom of the middle grinding disc, and the inner diameter of the positioning hole is larger than the outer diameter of the positioning column; the outer wall of the central pipe of the grinding unit is respectively sleeved with a shallow material stirring disc and a deep material stirring disc, the shallow material stirring disc is embedded into the surface of the middle grinding disc, the deep material stirring disc is embedded into the bottom of the middle grinding disc, the shallow material stirring disc is matched with the deep material stirring disc embedded into the bottom of the upper grinding disc, and the deep material stirring disc is matched with the shallow material stirring disc embedded into the surface of the lower grinding disc;

the upper outlet is positioned in the deep material stirring disc embedded at the bottom of the upper millstone, and the lower outlet is positioned in the deep material stirring disc embedded at the bottom of the middle millstone;

sealing gaskets are arranged between the upper part of the middle grinding disc and the shallow material shifting disc, between the lower part of the middle grinding disc and the deep material shifting disc, between the bottom of the upper grinding disc and the deep material shifting disc and between the surface of the lower grinding disc and the shallow material shifting disc;

the deep material stirring disc and the shallow material stirring disc respectively comprise a chassis, a plurality of material stirring teeth are uniformly distributed on the surface of the chassis along the circumferential direction, the material stirring teeth are obliquely arranged, the material stirring teeth in the deep material stirring disc are higher than the material stirring teeth in the shallow material stirring disc, and when the deep material stirring disc and the shallow material stirring disc are arranged in a matching manner, the material stirring teeth are arranged in opposite directions;

the bottom surface of the upper millstone and the surface of the middle millstone as well as the bottom surface of the middle millstone and the surface of the lower millstone are respectively provided with grinding teeth with opposite inclination directions, so that the shearing force between the upper millstone and the middle millstone as well as between the middle millstone and the lower millstone is formed during the operation.

6. The low-temperature high-efficiency integrated stone mill for preparing the aleurone layer as claimed in claim 5, wherein: the upper grinding disc and the lower grinding disc respectively comprise a grinding disc body, a multi-ring frame is arranged on the grinding disc body along the circumferential direction, each ring frame is provided with a plurality of fan-shaped grinding block grooves through partition plates, a grinding block is arranged in each grinding block groove, grinding teeth are arranged on the surface of the grinding block, a buffer cushion is arranged between the grinding block and the grinding block groove, the back surface of the grinding block is provided with a fixing hole, the grinding block is connected with a fixing seat arranged at the back of the grinding disc body through the fixing hole, and each grinding block forms multi-ring grinding teeth through the multi-ring frame; the middle millstone is formed by processing a whole material, and the surface and the bottom surface of the middle millstone are both provided with multi-ring grinding teeth matched with the upper millstone and the lower millstone.

7. The low-temperature high-efficiency integrated stone mill for preparing the aleurone layer as claimed in claim 3, wherein: the bearing frame on the sieve tray frame adopts a bearing frame, the upper end and the lower end of the central pipe of the sieve group are respectively sleeved in the bearings, and the peripheries of the two bearing frames are fixed with the top and the bottom of the sieve tray frame through flange plates;

the screen frame is positioned on a screen frame seat arranged on the inner wall of the screen body and close to the upper part of the screen bottom, and comprises a screen frame with a center matched grinding group central pipe, screen meshes are fixed on the surface and the back of the screen frame, a plurality of cross braces are arranged between the back of the screen frame and the screen meshes to divide the screen frame into a plurality of screen material areas, each screen material area is provided with one or more marble rings, and a plurality of marbles are arranged in the marbles; an outer pressing disc is further arranged on the periphery of the screen frame, the outer pressing disc is connected with a rubber sealing ring outwards, and the bottom of the rubber sealing ring is in contact with the top of the screen frame;

the elastic supporting mechanism comprises a plurality of lower spring seats arranged at the bottom of the sieve tray frame and a plurality of upper spring seats arranged at the bottom of the sieve body, the upper spring seats and the lower spring seats are arranged in a one-to-one correspondence manner, and springs are fixedly arranged between the upper spring seats and the lower spring seats;

the first material receiving disc is conical, the top of the first material receiving disc is open, and a sealing ring is arranged at the sleeve joint of the bottom of the first material receiving disc and the central tube of the screen group.

8. The low-temperature high-efficiency integrated stone mill for preparing the aleurone layer as claimed in claim 1, wherein: an upper rack is arranged outside the upper grinding disc, and a lower rack is arranged outside the lower grinding disc; the front end of the pressure clutch mechanism is also provided with a hand wheel and a ratchet wheel one-way brake mechanism respectively, the rear end of the pressure clutch mechanism realizes meshing transmission with a driven gear through a multi-stage transition gear, and the driven gear drives an upper rack and a lower rack to realize meshing transmission simultaneously when rotating; rotating a hand wheel clockwise, wherein the roller of an upper grinding disc is close to the center of the length direction of the slide rail groove from top to bottom, the roller of a lower grinding disc is close to the center of the length direction of the slide rail groove from bottom to top, so that the upper grinding disc and the lower grinding disc are clamped, pressure is generated in the middle grinding disc, rotating the hand wheel anticlockwise, the upper grinding disc is moved upwards, the lower grinding disc is moved downwards, and the pressure is cancelled when the rollers of the upper grinding disc and the lower grinding disc return to a stop state; the ratchet wheel one-way brake mechanism has the function of preventing the rollers of the upper grinding disc and the lower grinding disc from slipping backwards.

9. The low-temperature high-efficiency integrated stone mill for preparing the aleurone layer as claimed in claim 1, wherein: the top of the material receiving disc cavity is provided with a top cover, the center of the top cover is provided with a central screen group central pipe, and the surface of the top cover is connected with a screen frame and an inner pressing disc through a flange hole.

10. The low-temperature high-efficiency integrated stone mill for preparing the aleurone layer as claimed in claim 1, wherein: when the grinding group and the screen group are integrally provided with a plurality of layers, the grinding group and the screen group on each layer are connected with the rest layers through flange plates at the top and the bottom, a central pipe of the screen group on each layer supplies materials for a central pipe of the grinding group on the next layer, wherein only the back of the screen bottom of the screen group on the last layer is provided with a vibrating mechanism, and the central pipe of the screen group on the last layer conveys oversize materials to an oversize material receiving mechanism; the undersize material discharge port of each layer is connected with a respective recovery pipeline, the respective recovery pipeline is connected with a recovery connecting pipe, and the recovery pipeline and the recovery transfer vibration are realized through a vibration mechanism arranged on the back of the screen bottom, so that the vibration screening of each layer of screen body is realized;

when a plurality of grinding groups are arranged and one screen group is arranged, the number of the feeding channels of the central pipe of the grinding group is at least 2 times of the number of the grinding groups;

when the base top only sets up at least one or more and grinds the group and carry out one-level or multistage crushing grinding to the material, when not setting up the sieve group, grind the group below and set up a take-up (stock) pan that is equivalent to mill group external dimension and be used for receiving the material.

Technical Field

The invention relates to the technical field of wheat crushing processing equipment, in particular to a method for preparing

The low-temperature high-efficiency integrated stone mill of the aleurone layer.

Background

Stone mills have a long history in China and are eliminated due to low efficiency. At present, people in daily life have too fine dietary structure, and a large amount of dietary fibers and trace elements are deficient, so that high incidence of chronic diseases such as hypertension, hyperlipidemia and hyperglycemia is caused, and people pay high attention to the nutritional requirements.

The wheat aleurone layer is also called as the exoendosperm, is the innermost cell of the wheat grain cortex and is positioned between the wheat grain seed coat and the endosperm, the aleurone layer only accounts for 7-9% of the total mass of the wheat grain, but the content of the nutrient components accounts for 60-70% of the total nutrition of the wheat, and the physiological active components with high nutritional value (such as dietary fiber, mineral substances, beneficial lipids, vitamins, phenolic acids, lignans and the like) in the wheat are concentrated in the aleurone layer and are known as 'soft gold' in the wheat. The existing flour milling process is difficult to extract and abandons, so that a great amount of bran is wasted, and the nutrition in the wheat is lost. The aleurone layer has low acquisition rate through automatic flour milling equipment, and how to achieve high efficiency and high acquisition rate is a problem to be solved urgently at present.

Disclosure of Invention

In order to solve the technical defects, the invention aims to provide a method for preparing an aleurone layer

The low-temperature high-efficiency integrated stone mill is reasonable in design, high in aleurone layer acquisition rate and efficiency, and capable of effectively assisting to promote the understanding and accepting ability of people on whole grain food, the staple food is coarse-grained, the problems of excessive heat, unreasonable dietary structure and the like are solved, and a new solution is provided for the healthy diet of the whole people; the wheat aleurone layer is almost blank all over the world, and the popularization of the whole grain food is still in the preliminary stage in China, so the method has wide market prospect.

In order to achieve the purpose, the invention adopts the following technical scheme: a low-temperature high-efficiency integrated stone mill for preparing an aleurone layer comprises a base and is characterized in that: a screen group for screening is arranged above the base, a grinding group for crushing and grinding is arranged above the screen group, and the base, the grinding group and the screen group are fixedly connected with each other through the periphery of a flange plate; the grinding group center penetrates through a grinding group center pipe, the screening group center pipe penetrates through the screening group center pipe, the grinding group center pipe and the screening group center pipe are respectively and correspondingly provided with a plurality of feeding channels through the separating plates, and the grinding group center pipe and the screening group center pipe are connected together through a first spline;

the top of the grinding group central pipe is connected with a feed hopper, and the screening group central pipe is connected with a power mechanism arranged in the base, so that the screening group central pipes and the grinding group central pipes synchronously rotate;

the grinding group comprises a grinding disc frame, an upper grinding disc, a middle grinding disc and a lower grinding disc are arranged in the grinding disc frame from top to bottom, the upper grinding disc and the lower grinding disc are static grinding discs, the middle grinding disc is a movable grinding disc, a grinding group central pipe penetrates through the centers of the upper grinding disc, the middle grinding disc and the lower grinding disc, the outer wall of the grinding group central pipe is in positioning sleeve joint with the middle grinding disc, an upper outlet is formed in the outer wall of the grinding group central pipe above the middle grinding disc, the upper outlet is communicated with one feeding channel and used for feeding between the upper grinding disc and the middle grinding disc, a lower outlet is formed in the lower part of the middle grinding disc, and the upper outlet is communicated with the other feeding channel and used for feeding between the middle grinding disc and the lower grinding disc;

a plurality of groups of inclined slide rail grooves are arranged along the inner wall of the grinding disc frame, each group of slide rail grooves is divided into an upper slide rail groove and a lower slide rail groove, the upper slide rail grooves and the lower slide rail grooves are respectively matched and slidably connected with the rollers arranged on the outer sides of the upper grinding disc and the lower grinding disc, and in a stop state, the rollers of the upper grinding disc are positioned close to the opening of the slide rail grooves, and the rollers of the lower grinding disc are positioned close to the groove bottoms of the slide rail grooves; the grinding disc frame is provided with a pressure clutch mechanism, and the upper grinding disc and the lower grinding disc are clamped tightly by the pressure clutch mechanism to generate pressure, so that the requirement of crushing and grinding materials during working is met;

the screen group comprises a screen disc frame, the inside of the screen disc frame is connected with a screen body through an elastic supporting mechanism, a screen bottom is arranged inside the screen body, a screen frame for screening materials is arranged above the screen bottom, an inner pressure disc is arranged above the screen frame and close to the center, the central pipe of the screen group penetrates through the screen bottom, the screen frame and the center of the inner pressure disc, a sunken inclined channel for collecting undersize materials is arranged on the surface of the screen bottom, a material receiving disc cavity for collecting oversize materials is arranged in the center of the screen bottom, a vibrating mechanism is further arranged on the back of the screen bottom, and the material receiving disc cavity, the screen frame and the inner pressure disc are connected through flange holes;

the top and the bottom of the sieve tray frame and the grinding tray frame are respectively provided with a receiving frame for sleeving two ends of a sieve group central pipe or a grinding group central pipe, a first material receiving disc is fixed on the receiving frame positioned at the bottom of the sieve tray frame and sleeved on the outer wall of the sieve group central pipe, the top of the first material receiving disc extends into the inner part of a material receiving disc cavity and has a certain gap with the inner wall of the material receiving disc cavity, and when the sieve group central pipe rotates, the first material receiving disc is in a static state; two oversize material feeding holes are formed in the outer wall of the central tube of the screen group at the sleeving position of the first material receiving disc, and the oversize material feeding holes are respectively communicated with two feeding channels; the outer wall of the screen body is provided with a screen underflow discharge port of the sunk inclined channel, the screen underflow discharge port penetrates through the screen tray frame to be connected with a recovery pipeline, the recovery pipeline is correspondingly connected with a recovery connecting pipe outside the screen group, and the screen body is enabled to realize vibrating screen materials through a vibrating mechanism arranged on the back of the screen bottom;

and the oversize material receiving mechanism is arranged above the power mechanism inside the base and is used for collecting oversize materials from the central tube of the screen group.

Furthermore, spline grooves are formed in the end faces of the screen group central pipe and the grinding group central pipe; the first spline is divided into an upper part and a lower part through a middle connecting disc, and the upper part and the lower part are in matched clamping connection with the spline grooves, so that the screening group central tube and the grinding group central tube which are randomly superposed up and down are connected together; the connection pad includes an outer ring, and the inner wall sets up a plurality of supports, and the other end and the first spline outer wall connection of this support, the surface and the bottom surface of outer ring and support all are equipped with the recess, when each sieve group center tube with grind group center tube and connect, through the joint in spline groove, make sieve group center tube and grind group center tube outer wall and arrange the recess of outer ring in inside, divide the board to arrange the recess of support in inside.

The base comprises a power base and a cover body sleeved above the power base, wherein a power mechanism is arranged on the power base, and the output end of the power mechanism is connected with a coupler; a bearing frame seat is arranged on the inner wall of the cover body above the power mechanism, a bearing frame is fixed on the bearing frame seat, the bearing frame comprises a support frame and a bearing positioned in the center of the support frame, and a bearing sleeve is further arranged outside the bearing;

the oversize material receiving mechanism is arranged above the bearing frame and comprises a second spline clamped with the spline groove of the last layer of screen group central pipe and a second material receiving disc fixed on the bearing sleeve, wherein the second spline is provided with a spline shaft which is connected with the coupler after being sleeved inside the bearing; the center of the second material receiving disc is sleeved with the outer wall of the spline shaft, a sealing ring is arranged at the sleeved position, and material shifting teeth are further fixed on the outer wall of the spline shaft in the inner cavity of the second material receiving disc; and an oversize material outlet is formed in the bottom of the second material receiving disc and conveys oversize materials to the outside of the base through connecting an inclined pipeline.

The bearing frame on the grinding wheel frame adopts a bearing frame, a bearing sleeve positioned on the top bearing frame is embedded into an inner groove arranged on the surface of the upper grinding wheel, a bearing sleeve positioned on the bottom bearing frame is embedded into an inner groove arranged on the bottom surface of the lower grinding wheel, and the upper end and the lower end of a central pipe of the grinding unit are respectively sleeved in the bearings; the peripheries of the two bearing frames are fixed with the top and the bottom of the grinding disc frame through the flange plates.

A flange is fixed on the outer wall of the central pipe of the grinding set, a positioning hole in the flange is sleeved with a positioning column arranged at the bottom of the middle grinding disc, and the inner diameter of the positioning hole is larger than the outer diameter of the positioning column; the outer wall of the central pipe of the grinding unit is respectively sleeved with a shallow material stirring disc and a deep material stirring disc, the shallow material stirring disc is embedded into the surface of the middle grinding disc, the deep material stirring disc is embedded into the bottom of the middle grinding disc, the shallow material stirring disc is matched with the deep material stirring disc embedded into the bottom of the upper grinding disc, and the deep material stirring disc is matched with the shallow material stirring disc embedded into the surface of the lower grinding disc;

the upper outlet is positioned in the deep material stirring disc embedded at the bottom of the upper millstone, and the lower outlet is positioned in the deep material stirring disc embedded at the bottom of the middle millstone;

sealing gaskets are arranged between the upper part of the middle grinding disc and the shallow material shifting disc, between the lower part of the middle grinding disc and the deep material shifting disc, between the bottom of the upper grinding disc and the deep material shifting disc and between the surface of the lower grinding disc and the shallow material shifting disc;

the deep material stirring disc and the shallow material stirring disc respectively comprise a chassis, a plurality of material stirring teeth are uniformly distributed on the surface of the chassis along the circumferential direction, the material stirring teeth are obliquely arranged, the material stirring teeth in the deep material stirring disc are higher than the material stirring teeth in the shallow material stirring disc, and when the deep material stirring disc and the shallow material stirring disc are arranged in a matching manner, the material stirring teeth are arranged in opposite directions;

the bottom surface of the upper millstone and the surface of the middle millstone as well as the bottom surface of the middle millstone and the surface of the lower millstone are respectively provided with grinding teeth with opposite inclination directions, so that the shearing force between the upper millstone and the middle millstone as well as between the middle millstone and the lower millstone is formed during the operation.

The upper grinding disc and the lower grinding disc respectively comprise a grinding disc body, a multi-ring frame is arranged on the grinding disc body along the circumferential direction, each ring frame is provided with a plurality of fan-shaped grinding block grooves through partition plates, a grinding block is arranged in each grinding block groove, grinding teeth are arranged on the surface of the grinding block, a buffer cushion is arranged between the grinding block and the grinding block groove, the back surface of the grinding block is provided with a fixing hole, the grinding block is connected with a fixing seat arranged at the back of the grinding disc body through the fixing hole, and each grinding block forms multi-ring grinding teeth through the multi-ring frame; the middle millstone is formed by processing a whole material, and the surface and the bottom surface of the middle millstone are both provided with multi-ring grinding teeth matched with the upper millstone and the lower millstone.

The bearing frame on the sieve tray frame adopts a bearing frame, the upper end and the lower end of the central pipe of the sieve group are respectively sleeved in the bearings, and the peripheries of the two bearing frames are fixed with the top and the bottom of the sieve tray frame through flange plates;

the screen frame is positioned on a screen frame seat arranged on the inner wall of the screen body and close to the upper part of the screen bottom, and comprises a screen frame with a center matched grinding group central pipe, screen meshes are fixed on the surface and the back of the screen frame, a plurality of cross braces are arranged between the back of the screen frame and the screen meshes to divide the screen frame into a plurality of screen material areas, each screen material area is provided with one or more marble rings, and a plurality of marbles are arranged in the marbles; an outer pressing disc is further arranged on the periphery of the screen frame, the outer pressing disc is connected with a rubber sealing ring outwards, and the bottom of the rubber sealing ring is in contact with the top of the screen frame;

the elastic supporting mechanism comprises a plurality of lower spring seats arranged at the bottom of the sieve tray frame and a plurality of upper spring seats arranged at the bottom of the sieve body, the upper spring seats and the lower spring seats are arranged in a one-to-one correspondence manner, and springs are fixedly arranged between the upper spring seats and the lower spring seats;

the first material receiving disc is conical, the top of the first material receiving disc is provided with an opening, and a sealing ring is arranged at the sleeve joint of the bottom of the first material receiving disc and the central tube of the screen group;

the top of the material receiving disc cavity is provided with a top cover, the center of the top cover is provided with a central screen group central pipe, and the surface of the top cover is connected with a screen frame and an inner pressing disc through a flange hole.

An upper rack is arranged outside the upper grinding disc, and a lower rack is arranged outside the lower grinding disc; the front end of the pressure clutch mechanism is also provided with a hand wheel and a ratchet wheel one-way brake mechanism respectively, the rear end of the pressure clutch mechanism realizes meshing transmission with a driven gear through a multi-stage transition gear, and the driven gear drives an upper rack and a lower rack to realize meshing transmission simultaneously when rotating; rotating a hand wheel clockwise, wherein the roller of an upper grinding disc is close to the center of the length direction of the slide rail groove from top to bottom, the roller of a lower grinding disc is close to the center of the length direction of the slide rail groove from bottom to top, so that the upper grinding disc and the lower grinding disc are clamped, pressure is generated in the middle grinding disc, rotating the hand wheel anticlockwise, the upper grinding disc is moved upwards, the lower grinding disc is moved downwards, and the pressure is cancelled when the rollers of the upper grinding disc and the lower grinding disc return to a stop state; the ratchet wheel one-way brake mechanism has the function of preventing the rollers of the upper grinding disc and the lower grinding disc from slipping backwards.

When the grinding group and the screen group are integrally provided with a plurality of layers, the grinding group and the screen group on each layer are connected with the rest layers through flange plates at the top and the bottom, the central pipe of the screen group on each layer supplies material for the central pipe of the grinding group on the next layer, wherein only the back of the screen bottom of the screen group on the last layer is provided with a vibration mechanism,

only the screen group central pipe of the last layer of screen group conveys oversize products to an oversize product receiving mechanism; the undersize material discharge port of each layer is connected with a respective recovery pipeline, the respective recovery pipeline is connected with a recovery connecting pipe, and the recovery pipeline and the recovery transfer vibration are realized through a vibration mechanism arranged on the back of the screen bottom, so that the vibration screening of each layer of screen body is realized;

when a plurality of grinding groups are arranged and one screen group is arranged, the number of the feeding channels of the central pipe of the grinding group is at least 2 times of the number of the grinding groups;

when the base top only sets up at least one or more and grinds the group and carry out one-level or multistage crushing grinding to the material, when not setting up the sieve group, grind the group below and set up a take-up (stock) pan that is equivalent to mill group external dimension and be used for receiving the material.

Before the grinding machine works, the upper grinding disc, the middle grinding disc and the lower grinding disc are in a separated state, and when the grinding machine works, the power mechanism and the vibration motor are started, the grinding group central pipe and the screening group central pipe rotate to drive the middle grinding disc of each grinding group to rotate, wherein the upper grinding disc and the lower grinding disc are in a static state. The bran flows into the central tube of the grinding group through the feed hopper, and enters the deep material stirring disc between the upper grinding disc and the middle grinding disc through the upper outlet to be dispersed outwards, the bran enters a deep material stirring disc between the middle grinding disc and the lower grinding disc through the lower outlet and is dispersed outwards, after the millstone is fed, the pressure clutch mechanism of the grinding group is rotated clockwise by the hand wheel, so that the rollers of the upper millstone and the lower millstone in each grinding group move close to the center of the inclined slide rail groove in the length direction, the upper millstone and the middle millstone clamp the lower millstone to generate pressure, along with the rotation of the middle millstone and the increase of materials, the materials are pushed into the first ring grinding teeth by the deep stirring disk, and are sheared and ground by the first ring grinding teeth, the materials roll to enter the second ring grinding teeth, the third ring grinding teeth and the fourth ring grinding teeth, then the bran is pushed out of the grinding disc, and the bran processed by the grinding disc enters the screen group through a gap between the grinding disc and the grinding disc frame;

the bran falls into the screen mesh, oversize materials are drawn close to the center from peripheral rotary vibration through screen bottom vibration and enter a first material receiving disc, the first material receiving disc enters a screen group central tube from an oversize material feeding port through a self conical structure under the rotation action of the screen group central tube, and the oversize materials are discharged out of the base through an oversize material receiving mechanism finally; and the undersize materials enter a recovery pipeline through the sinking type inclined channel and finally enter a recovery connecting pipe.

When the grinding group and the screen group are integrally provided with a plurality of layers, the screen group positioned in the first layer is not provided with a vibrating mechanism on the back of the screen bottom, oversize materials obtained in the screen group in the layer firstly enter an oversize material feeding port in a central pipe of the screen group and respectively correspond to an upper outlet and a lower outlet of a central pipe of the grinding group in a lower-level grinding group, and the materials are transferred to the grinding group in the next layer; in this state, the screen group in the last layer is provided with a vibrating mechanism on the back of the screen bottom, and the screen group central pipe of the screen group in the last layer conveys oversize products to the oversize product receiving mechanism; the undersize material discharge gate on every layer is connected respective recovery pipeline, and respective recovery pipeline all is connected with the recovery connecting pipe, and through the vibration mechanism that sieve end back was equipped with, recovery pipeline and recovery transmission vibration make each layer screen frame all realize the shale shaker material.

When a plurality of grinding groups are arranged and one screen group is arranged, the grinding groups are assembled together, each grinding group shares two feeding channels, and the number of the feeding channels of the central pipe of each grinding group is at least 2 times that of the grinding groups; the materials crushed and ground by the grinding groups all fall onto the screen group, and screen oversize materials and undersize materials to complete screening.

When the upper grinding disc, the middle grinding disc and the lower grinding disc are used for grinding bran, the mode that the productivity is improved by simply thickening and enlarging in the traditional mode is replaced by pressure, high efficiency and energy conservation are realized, the self weight of the grinding discs is reduced, and the labor force is fully saved to finish the grinding effect.

The single-ring grinding teeth of the traditional stone mill are arranged, friction force and shearing force are on the edge, the middle part is a material homogenizing area, the effect is not large, and space is wasted.

The grinding teeth of the invention are eccentric trapezoidal teeth, the grinding teeth are gradually heightened from low to high, small teeth are arranged on the grinding mouth plane, the shearing included angles are uniform, and the product precision reaches ideal requirements.

The upper grinding disc and the lower grinding disc are provided with the plurality of fan-shaped grinding block grooves, the fan-shaped grinding blocks are added into the fan-shaped grinding block grooves, the buffer pads are arranged before the fan-shaped grinding blocks are added, and the fan-shaped grinding blocks are fixed on the grinding disc frame through the fixing seats, so that the falling is prevented, the suspension phenomenon is avoided, and the tooth sticking friction is realized.

The grinding group comprises three layers of grinding discs, wherein the middle grinding disc is a movable grinding disc, the upper grinding disc and the lower grinding disc are static grinding discs, and the static discs clamp the movable grinding disc to run to achieve a friction effect during working.

The pressure clutch mechanism in the invention is driven by a multi-stage gear to form speed reduction, and the racks on the upper millstone and the lower millstone are driven to work, so that the two millstones have a clutch effect, and the pressure effect is achieved.

In addition, the grinding group and the screen group can adopt a multilayer structure, so that the production efficiency is effectively improved.

The front multilayer screen group realizes synchronous vibration through the vibrating motor arranged on the back of the screen bottom of the last layer screen group, and the aleurone layer is prepared through multistage screening.

Grind group's center tube and sieve group center tube, can divide a plurality of feed channel in the center tube, produce power transmission through first splined connection together.

The grinding set and the screen set are produced in an integrated mode, and can be used universally, and manufacturing cost is reduced to a certain extent.

The invention has the beneficial effects that: high efficiency, energy saving and unnecessary investment reduction; the device has ideal equipment for separating and extracting the aleurone layer; has the excellent performance of whole grain products; the method has the processing requirements of the coarse cereals; the large-tonnage flow line production is realized; the advantage of single machine operation and reduction of the number of passes is achieved; the method has the advantages that the desquamation coarse powder is finely divided, and the fine grinding function is superior to that of fine grinding; has the processing requirements of heat-sensitive substances and has the performance of dry and wet use.

Drawings

The structure and features of the present invention will be further described with reference to the accompanying drawings and examples.

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is an exploded view of the base of the present invention.

FIG. 3 is an exploded view of the mill set of the present invention.

Figure 4 is an exploded view of the screen pack of the present invention.

Fig. 5 is a schematic view of the connection of the screen bottom and the receiving tray chamber of fig. 4.

Fig. 6 is a top view of fig. 5.

Figure 7 is a schematic illustration of the screen pack center tube of figure 4 nested with a first take-up pan.

FIG. 8 is a schematic structural diagram of a deep material stirring tray and a shallow material stirring tray which are arranged between an upper grinding disc and a middle grinding disc and between the middle grinding disc and a lower grinding disc in the invention.

Fig. 9 is a schematic structural view of the first spline of the present invention.

Fig. 10 is a top view of fig. 9.

Fig. 11 is a schematic structural view of the second spline of the present invention.

Fig. 12 is a schematic connection diagram of the second spline, the bearing housing and the second take-up reel of the present invention.

Figure 13 is a schematic view of the configuration of the wire frames in the screen pack of the present invention.

Fig. 14 is a rear view of fig. 13.

Fig. 15 is a schematic structural view of the upper grinding disc or the lower grinding disc in the invention.

Fig. 16 is a schematic structural view of fig. 15 with the sector shaped abrasive blocks removed.

Fig. 17 is a schematic structural view of the abrasive block and a holder for holding the abrasive block according to the present invention.

Fig. 18 is a schematic structural view of the deep drawing tray in fig. 8.

Fig. 19 is a schematic view of the construction of the shallow stirring tray in fig. 8.

Fig. 20 is a top view of fig. 12.

FIG. 21 is a schematic illustration of the construction of a screen pack base pipe or mill pack base pipe as described in the present invention.

Fig. 22 is a schematic view of the structure of fig. 21 with the feed channel removed.

In the attached drawings 1-17, 1 is a feed hopper, 2 is a recovery connecting pipe, 3 is a recovery pipeline, 4 is a first grinding group, 5 is a first sieve group, 6 is a second grinding group, 7 is a third sieve group, 8 is a connecting sleeve, 9 is an inner pressure disc, 10 is a base, 11 is a connecting disc, 12 is a bearing frame, 13 is a cover body, 14 is a power base, 15 is a transmission motor, 16 is a speed reducer, 18 is an upper grinding disc, 19 is a roller, 20 is an upper rack, 21 is a grinding group central pipe, 22 is a middle grinding disc, 23 is a lower grinding disc, 24 is a grinding disc frame, 25 is a slide rail groove, 26 is an observation hole, 27 is a pressure clutch mechanism, 28 is an outer pressing disc, 29 is a rubber sealing ring, 30 is a sieve frame, 31 is an elastic ball ring, 32 is an elastic ball, 33 is a sieve material area, 34 is a sieve frame seat, 35 is a sieve group central pipe, 36 is a sieve bottom, 37 is a sieve body, 38 is a top, 39 is a sieve material inlet, 40 is a material receiving disc cavity, 41. the grinding disc frame comprises a screening disc frame body, 42 springs, 43 a grinding disc body, 44 a multi-ring frame body, 45 a vibrating frame body, 46 buffer pads, 47 grinding teeth, 48 shearing angles, 49 accumulation block fixing holes, 50 a fixing seat, 51 a first spline, 52 fan-shaped grinding blocks, 53 cross braces, 54 a net rack, 55 flange holes, 56 sinking inclined channels, 57 a first material receiving disc, 59 a second material receiving disc, 60 inclined pipelines, 61 partition plates, 62 upper outlets, 63 lower racks, 64 a third grinding group, 65 screen underflow discharge ports, 66 a top cover, 67 a vibrating motor, 68 sealing gaskets, 69 deep material shifting discs, 70 shallow material shifting discs, 71 flange plates, 72 lower outlets, 73 feeding channels, 74 connecting discs, 75 grooves, 76 outer rings, 77 supports, 78 second splines, 79 spline shafts, 80 coupling connecting ends, 81 bearing sleeves, 82. and an oversize material outlet 83, a spline groove 84, a second screen group 85 and a division plate 85.

Detailed Description

For the purpose of promoting a clear understanding of the principles of the invention, reference will now be made in detail to the present invention as illustrated in the accompanying drawings.

Referring to fig. 1-22, the invention discloses an embodiment of the invention, which discloses a low-temperature high-efficiency integrated stone mill for preparing an aleurone layer, the stone mill is respectively provided with three layers of mill groups and three layers of sieve groups, the stone mill comprises a base 10, a first mill group 4, a first sieve group 5, a second mill group 6, a second sieve group 5, a third mill group 64 and a second sieve group 7 are sequentially arranged above the base from top to bottom, the first mill group 4, the second mill group 6 and the third mill group 64 are identical in structure and used for crushing and grinding, the first sieve group 5, the second sieve group 84 and the third sieve group 7 are identical in structure and used for screening, the mill groups and the sieve groups are arranged in a staggered and overlapped mode, and the mill groups and the sieve groups are fixedly connected through flanges.

The centers of the first grinding group 4, the second grinding group 6 and the third grinding group 64 are provided with a grinding group central pipe 21 in a penetrating manner, the centers of the first screening group 5, the second screening group 84 and the third screening group 7 are provided with a screening group central pipe 35 in a penetrating manner, the grinding group central pipe 21 and the screening group central pipe 35 are respectively provided with a plurality of feeding channels 73 through a dividing plate 85 in a corresponding manner, and the grinding group central pipe 21 and the screening group central pipe 35 are connected together through a first spline 51; the top of the mill group central tube 21 of the first mill group 4 is connected with a feed hopper 1, which is shown in figure 1.

The sieve group central pipe 35 of the third sieve group 7 is connected with a power mechanism arranged in the base 10, so that the sieve group central pipes 35 and the grinding group central pipe 21 synchronously rotate.

The first grinding unit 4, the second grinding unit 6 and the third grinding unit 64 all comprise a grinding disc frame 24, a plurality of observation holes 26 are arranged around the grinding disc frame 24, an upper grinding disc 18, a middle grinding disc 22 and a lower grinding disc 23 are arranged in the grinding disc frame 24 from top to bottom, the upper grinding disc 18 and the lower grinding disc 23 are static grinding discs, the middle grinding disc 22 is a movable grinding disc, a grinding group central pipe 21 penetrates through the centers of the upper grinding disc 18, the middle grinding disc 22 and the lower grinding disc 23, the outer wall of the grinding group central pipe 21 is positioned and sleeved with the middle grinding disc 22, an upper outlet 62 is arranged on the outer wall of the grinding group central pipe 21 above the middle grinding disc 22, the upper outlet 62 is communicated with one of the feeding channels 73, for feeding between the upper grinding disc 18 and the middle grinding disc 22, a lower outlet 72 is arranged below the middle grinding disc 22, the lower outlet 72 is communicated with one of the feeding channels 73 for feeding between the middle grinding disc 22 and the lower grinding disc 23;

a plurality of groups of inclined slide rail grooves 25 are arranged along the inner wall of the grinding disc frame 24, each group of slide rail grooves 25 is divided into an upper slide rail groove and a lower slide rail groove, the upper slide rail groove and the lower slide rail groove are respectively matched and slidably connected with the rollers 19 arranged on the outer sides of the upper grinding disc 18 and the lower grinding disc 23, in a stop state, the rollers 19 of the upper grinding disc 18 are positioned close to the openings of the slide rail grooves 25, and the rollers 19 of the lower grinding disc 23 are positioned close to the grooves of the slide rail grooves 25; the grinding disc frame 24 is provided with a pressure clutch mechanism 27, the pressure clutch mechanism 27 is provided with a driven gear inside the grinding disc frame and a hand wheel outside the grinding disc frame, and the driven gear is respectively meshed with an upper rack 20 arranged outside the upper grinding disc 18 and a lower rack 63 arranged outside the lower grinding disc 23; the hand wheel is rotated clockwise, the roller 19 of the upper grinding disc 18 is close to the center of the length direction of the sliding rail groove 25 from top to bottom, the roller 19 of the lower grinding disc 23 is close to the center of the length direction of the sliding rail groove 25 from bottom to top, so that the upper grinding disc 18 moves downwards, the lower grinding disc 23 moves upwards, the middle grinding disc 22 is clamped to generate pressure, the hand wheel is rotated anticlockwise, the upper grinding disc 18 moves upwards, the lower grinding disc 23 moves downwards, the roller 19 of the upper grinding disc 18 and the roller 19 of the lower grinding disc 23 return to a static state, and the pressure is cancelled to form a clutch effect; the grinding teeth 47 with opposite inclination directions are arranged on the bottom surface of the upper grinding disc 18 and the surface of the middle grinding disc 22, and the bottom surface of the middle grinding disc 22 and the surface of the lower grinding disc 23, so that the shearing force between the upper grinding disc 18 and the middle grinding disc 22 as well as between the middle grinding disc 22 and the lower grinding disc 23 is formed during working, and the requirement of grinding materials during working is met; the front end of the pressure clutch mechanism 27 is also provided with a ratchet wheel one-way brake mechanism, the rear end of the pressure clutch mechanism realizes meshing transmission with the driven gear through a multi-stage transition gear, and the ratchet wheel one-way brake mechanism has the function of preventing the rollers 19 of the upper grinding disc 18 and the lower grinding disc 23 from slipping backwards, which is shown in figure 3.

The first mill group 4, the second mill group 6 and the third mill group 64 further comprise bearing frames 12 respectively arranged at the top and the bottom of the mill frame, bearings are arranged at the centers of the two bearing frames 12, bearing sleeves 81 are arranged outside the bearings, the top bearing sleeve 81 is sleeved in an inner groove formed in the surface of the upper mill 18, the bottom bearing sleeve is sleeved in an inner groove formed in the bottom surface of the lower mill 23, the stability of the mill during grinding of materials is kept, the upper end and the lower end of a central tube 21 of the mill group are fixedly sleeved inside the two bearings respectively, the peripheries of the two bearing frames are fixed with the top and the bottom of the mill frame through flange plates, and the structure is shown in figure 3.

A flange 71 is fixed on the outer wall of the grinding group central pipe 21, a positioning hole in the flange 71 is sleeved with a positioning column arranged at the bottom of the middle grinding disc 22, the inner diameter of the positioning hole is larger than the outer diameter of the positioning column, and the middle grinding disc, the upper grinding disc and the lower grinding disc can crush and grind materials conveniently and have certain buffering; the outer wall of the grinding group central pipe 21 is respectively sleeved with a shallow material stirring disc 70 and a deep material stirring disc 69, the shallow material stirring disc 70 is embedded in the surface of the middle grinding disc 22, the deep material stirring disc 69 is embedded in the bottom of the middle grinding disc 22, the shallow material stirring disc 70 is matched with the deep material stirring disc 69 embedded in the bottom of the upper grinding disc 18, and the deep material stirring disc 69 is matched with the shallow material stirring disc 69 embedded in the surface of the lower grinding disc 23;

the upper outlet 62 is positioned in the deep material stirring disc 69 embedded at the bottom of the upper grinding disc 18, and the lower outlet 72 is positioned in the deep material stirring disc 69 embedded at the bottom of the middle grinding disc 22;

sealing gaskets 68 are arranged between the upper part of the middle grinding disc 22 and the shallow material shifting disc 70, between the lower part of the middle grinding disc 22 and the deep material shifting disc 69, between the bottom of the upper grinding disc 18 and the deep material shifting disc 69 and between the surface of the lower grinding disc 23 and the shallow material shifting disc 70;

deep material dish 69 and shallow material dish 70 of dialling all include a chassis, the chassis surface sets up a plurality of material teeth 58 of dialling along the circumferencial direction equipartition, and this material tooth 58 slope sets up of dialling, and wherein the material tooth height of dialling in the deep material dish 69 is higher than the material tooth of dialling in the shallow material dish 70 of dialling, when deep material dish 69 and the shallow material dish 70 of dialling match the setting, it sets up the opposite direction to dial the material tooth, and fig. 8, 18 and 19 show.

The upper grinding disc 18 and the lower grinding disc 23 both comprise a grinding disc body 43, a multi-ring frame 44 is arranged on the grinding disc body 43 along the circumferential direction, each ring frame is provided with a plurality of fan-shaped grinding block grooves 45 through a partition plate 61, the extension lines of the partition plates 61 do not pass through the center of the grinding disc body 43, a grinding block 52 is placed in each grinding block groove, grinding teeth 47 are arranged on the surface of the grinding block 52, a buffer pad 46 is arranged between the grinding block 52 and the grinding block grooves, fixing holes 49 are formed in the back of the grinding block 52, the grinding block 52 is connected with a fixing seat 50 arranged on the back of the grinding disc body 43 through the fixing holes 49, the grinding block 52 is made to be flexible by adding the buffer pad 46, a complete grinding disc is formed by multiple rings of grinding teeth formed by the multi-ring grinding blocks, the grinding blocks on the grinding disc have flexibility like keys on a keyboard, suspension is prevented, and the materials are made to be rubbed with teeth; the middle grinding disc 22 is made of a whole material or other materials with higher hardness, and the surface and the bottom surface of the middle grinding disc are both provided with multiple ring grinding teeth 47 matched with the upper grinding disc 18 and the lower grinding disc 23, which are shown in figures 15, 16 and 17.

Before working, the upper millstone, the middle millstone and the lower millstone of the first millstone group are in a separated state, when the grinding machine works, a power mechanism and a vibration motor are started, the central tube of the millstone group and the central tube of the sieve group rotate to drive the middle millstone of each millstone group to rotate, wherein the upper millstone and the lower millstone are in a static state, bran enters the central tube of the millstone group through a feed hopper, the bran enters a deep material stirring disc between the upper millstone and the middle millstone through an upper outlet and is dispersed outwards, the bran enters a deep material stirring disc between the middle millstone and the lower millstone through a lower outlet and is dispersed outwards, after the millstones are fed, a pressure clutch mechanism of the millstone group is rotated clockwise through a hand wheel, a roller of the upper millstone and the lower millstone moves towards the center through an oblique sliding gauge groove, pressure is generated by the millstones in the upper millstone clamp and the lower millstones, material wrinkles are pushed into the first ring grinding teeth along with the rotation of the middle millstone and the increase of materials, the material wrinkles are sheared and ground through the first ring grinding teeth, the material flows roll and enter the third ring grinding teeth, and a fourth ring grinding tooth, wherein the bran processed by the grinding disc enters the first sieve group through a gap between the grinding disc and the grinding disc frame.

The first sieve group 5, the second sieve group 84 and the third sieve group 7 respectively comprise a sieve tray frame 41, a plurality of bottom spring seats for supporting the springs 42 are arranged on the inner wall of the sieve tray frame 41 close to the bottom, a sieve body 37 is further arranged in the sieve tray frame 41, a top spring seat 38 matched with the bottom spring seats is arranged at the bottom of the sieve body 37, a sieve bottom 36 is arranged in the sieve body 37, a sunken inclined channel 56 is arranged on the surface of the sieve bottom 36, a convex material receiving tray cavity 40 is arranged in the center, a sieve net frame 30 for sieving materials is arranged above the sieve bottom 36, an inner pressure plate 9 is arranged above the sieve net frame 30 close to the center, and the surface of the material receiving tray cavity 40, the sieve net frame 30 and the inner pressure plate 9 are connected through flange holes; the screen group central pipe 35 is arranged through the screen frame 30 and the screen bottom 36; an outer pressure disk 28 is further arranged on the periphery of the screen frame 30, the outer pressure disk 28 is connected with a rubber sealing ring 29 outwards, and the bottom of the rubber sealing ring 29 is in contact with the top of a screen frame 41, as shown in the attached figure 4;

the top and the bottom of the sieve tray frame 41 are also provided with bearing frames 12, two ends of the sieve group central pipe 35 are sleeved inside the bearing frames 12, a first material receiving disc 57 is sleeved outside the sieve group central pipe 35, the first material receiving disc 57 is tapered, the upper end of the first material receiving disc 57 is open, a sealing ring is arranged at the sleeved position of the lower end of the sieve group central pipe 35, so that materials cannot leak at the sleeved position of the first material receiving disc and the sieve group central pipe, the bottom of the first material receiving disc 57 is fixed with the bearing frame 12 at the bottom of the sieve tray frame 41, the top of the first material receiving disc 57 extends into the material receiving disc cavity 40 and has a certain gap with the inner wall of the material receiving disc cavity 40, and the collision with the first material receiving disc is avoided when the sieve bottom screen vibrates; when the screen group central pipe 35 rotates, the first material receiving disc 57 is in a static state; two oversize material feed inlets 39 are formed in the sleeving position of the first material receiving disc 57 on the outer wall of the screen group central pipe 35 and are used for feeding the next-stage grinding group central pipe 21; and to fig. 4 and 7.

The back of the sieve of the third sieve group 7 is provided with a vibrating mechanism, and a material receiving mechanism for oversize materials is arranged between the sieve group central tube 35 of the third sieve group 7 and the power mechanism in the base 10.

The outer walls of the screen bodies 37 of the first screen group 5, the second screen group 84 and the third screen group 7 are provided with a plurality of screen underflow discharge ports 65 connected with the sinking type inclined channels 56; first sieve group 5 and second sieve group 84 and third sieve 7 a plurality of screen underflow discharge gates 65 pass sieve tray frame 41 and are connected with recovery pipeline 3, and each recovery pipeline 3 corresponds in first sieve group 5 and second sieve group 84 and third sieve 7 outside and is connected with a plurality of recovery connecting pipes 2, organizes the vibrating mechanism that the back was equipped with through the third sieve, makes the screen frame 37 of first sieve group 5 and second sieve group 84 and third sieve in group 7 realize synchronous vibration.

The screen frame 30 is positioned on the screen frame seat 34 arranged on the inner wall of the screen body 37 and close to the upper part of the screen bottom 36, and comprises a screen frame 54 with a central pipe matched with a grinding unit in the center, screen meshes are fixed on the surface and the back of the screen frame 54, the back of the screen frame 54 and the screen meshes are divided into a plurality of screen material areas 33 by a plurality of cross braces 53, each screen material area 33 is provided with one or a plurality of marble rings 31, and a plurality of marbles 32 are arranged in the marble rings 31; the screen frame lateral surface is equipped with Contraband type groove, inlays the environmental protection material of being convenient for to fix in the Contraband type groove, and it is used to be convenient for tear the screen cloth open and trade, be equipped with top cap 66 on the material receiving disc chamber 40, the top cap surface is connected with screen frame 30, interior pressure dish 9 through seting up the flange hole, just top cap 66 back is equipped with dials material tooth 5, and fig. 13 and 14 are shown.

When the first screen group works, the spring arranged on the screen disc frame supports and supports the screen body, materials fall around the screen in the screen body in the vibration process of the screen body, are vibrated by the vibration motor and are rotationally pushed towards the center, and screen underflow passes through the screen and sinks into the screen bottom, enters a recovery pipeline through a sinking type inclined channel and finally enters a recovery connecting pipe; the oversize material falls into first take-up (stock) pan from the center, and first take-up (stock) pan is through self toper structure, and under the rotation effect of screen group center tube, the material gets into the oversize material feed inlet of screen group center tube, grinds the group for next stage and supplies.

The first spline 51 is divided into an upper end and a lower end through a connecting disc 74 arranged in the middle, and is respectively matched and clamped with the spline grooves 83 arranged on the end surfaces of the screen group central pipe 35 and the grinding group central pipe 21 which are randomly overlapped up and down; the connection pad includes an outer ring, and the inner wall sets up a plurality of supports 77, and this support 77's the other end and the first spline 51 outer wall connection, the surface and the bottom surface of outer ring and support all are equipped with recess 75, when each sieve group center tube 35 and the group center tube 21 of grinding are connected, through spline groove 83's joint, arrange sieve group center tube and the group center tube outer wall of grinding inside recess 75 of outer ring in, divide the board 85 to arrange inside the recess of support 77 in, it is shown in fig. 9 and 10.

The base 10 comprises a power base 14 and a cover body 13 sleeved above the power base 14, wherein a power mechanism is arranged on the power base 14, the output end of the power mechanism is connected with a coupler, a bearing frame 12 is arranged above the power mechanism inside the cover body 13, the bearing frame 12 comprises a support frame and a bearing located at the center of the support frame, a bearing sleeve 81 is further arranged outside the bearing, and the structure is shown in the attached drawing 2.

The oversize material receiving mechanism is arranged above the bearing frame 12 in the base 10 and comprises a second spline 78 clamped with the spline groove 83 of the last layer of screen group central pipe 35 and a second material receiving disc 59 fixed on a bearing sleeve 81, the second spline 78 is provided with a spline shaft 79, and the spline shaft 78 is connected with a coupler after being sleeved in the bearing; the center of the second material receiving disc 59 is sleeved with the outer wall of the spline shaft 78, a sealing ring is arranged at the sleeved position, and the material shifting teeth 58 are further fixed on the outer wall of the spline shaft 78 in the inner cavity of the second material receiving disc 59; the second receiving tray 59 is provided with an oversize material outlet 82 at the bottom, and the oversize material outlet 82 conveys oversize materials to the outside of the base 10 by connecting an inclined pipeline 60, which is shown in fig. 11 and 12.

When the embodiment of the invention works, the working principle of the second grinding group is the same as that of the first grinding group, the second grinding group enters the second sieve group after the second grinding group treats the bran again, the working principle of the second grinding group is the same as that of the first sieve group, the third grinding group enters the third sieve group after the third grinding group treats the bran again, the conveying principle of undersize is the same as that of the first two sieve groups, oversize enters the second receiving disc in the base through the oversize feeding hole, and oversize in the second receiving disc is discharged out of the base through the inclined channel at the lower part of the oversize discharging hole under the action of the shifting teeth arranged on the outer wall of the spline shaft.

The grinding group and the screen group in the embodiment of the invention have the same structure, accord with the general principle, and can meet the requirement of the whole equipment only by arranging the vibrating mechanism on the last screen group.

When only one grinding group and one screen group are arranged in a superposed mode, the structure of the grinding group is unchanged, and the structure of the screen group is the same as that of the third screen group.

The invention can only have one mill group or a plurality of mill groups to carry out one-stage or multi-stage grinding and grinding on the materials, and a receiving tray with the same size as the mill group is arranged below the mill group for receiving the materials.

The invention can be provided with a mode of overlapping a plurality of grinding groups and a screen group, wherein the grinding group structure is unchanged, and the screen group adopts a structure of a third screen group.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.