CN108855446B - Coffee bean grinding and filtering device - Google Patents

Coffee bean grinding and filtering device Download PDF

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Publication number
CN108855446B
CN108855446B CN201810680158.6A CN201810680158A CN108855446B CN 108855446 B CN108855446 B CN 108855446B CN 201810680158 A CN201810680158 A CN 201810680158A CN 108855446 B CN108855446 B CN 108855446B
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CN
China
Prior art keywords
fixed
rubber ring
pair
shell
grinding
Prior art date
Application number
CN201810680158.6A
Other languages
Chinese (zh)
Other versions
CN108855446A (en
Inventor
陆惠芳
Original Assignee
钟文宇
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Priority to CN201810680158.6A priority Critical patent/CN108855446B/en
Publication of CN108855446A publication Critical patent/CN108855446A/en
Application granted granted Critical
Publication of CN108855446B publication Critical patent/CN108855446B/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/08Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within vertical containers
    • B02C18/10Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within vertical containers with drive arranged above container
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16Details
    • B02C18/22Feed or discharge means
    • B02C18/2216Discharge means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16Details
    • B02C18/22Feed or discharge means
    • B02C18/2225Feed means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16Details
    • B02C18/24Drives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/10Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone
    • B02C23/12Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone with return of oversize material to crushing or disintegrating zone
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPERATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, OR SIFTING OR BY USING GAS CURRENTS; OTHER SEPARATING BY DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/28Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPERATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, OR SIFTING OR BY USING GAS CURRENTS; OTHER SEPARATING BY DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/42Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPERATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, OR SIFTING OR BY USING GAS CURRENTS; OTHER SEPARATING BY DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/4609Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes

Abstract

The invention discloses a coffee bean grinding and filtering device, which comprises: a housing; grinding the rod; a bottom plate mechanism; the filter mechanism is located the casing, and it includes: a pair of second fixed pulleys; the outer side of the second rubber ring is in contact with the side wall of the shell along the circumferential direction, and the inner side of the second rubber ring is fixedly connected with a screen along the circumferential direction; the upper ends of the pull ropes are respectively fixed on the upper ends and the lower ends of the second fixed pulleys and symmetrically fixed on the second rubber ring; an inner cylinder forming an annular cavity with the housing; the outer side of the third rubber ring is circumferentially fixed on the side wall of the inner cylinder, the inner side of the third rubber ring is circumferentially fixed with a vibrating screen, and the upper surface of the vibrating screen is in contact with the lower surface of the screen mesh; the springs are fixed between the cavity and the second rubber ring; first electric jar and second electric jar symmetry are fixed in the cavity bottom, and remove the end and all fix on the second rubber ring. The invention has the advantages of quickly separating the coffee bean powder with qualified granularity before the temperature is too high, and ensuring the uniform fineness and the quality of the coffee bean powder.

Description

Coffee bean grinding and filtering device

Technical Field

The present invention relates to the field of milling. More particularly, the present invention relates to a coffee bean grinding and filtering apparatus.

Background

The coffee beans are hard in texture and not easy to grind and crush or are not uniformly crushed, and the coffee beans also contain rich flavor development substances and substances representing the taste, while the conventional coffee bean grinding machine usually has long grinding time, so that the coffee beans are overheated during grinding to cause great loss or deterioration of the flavor development substances and the substances representing the taste, thereby finally affecting the drinking quality of the coffee, and the phenomenon of long-time overheating also causes damage to the conventional grinding device.

Disclosure of Invention

An object of the present invention is to solve at least the above problems and to provide at least the advantages described later.

It is still another object of the present invention to provide a coffee bean grinding and filtering apparatus, which can grind coffee beans quickly, avoid overheating, filter and remove coffee particles with insufficient fineness in time, separate coffee bean powder with qualified particle size before the temperature is too high, and ensure the fineness uniformity and quality of the coffee bean powder.

To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided a coffee bean grinding and filtering apparatus comprising:

the upper part of the shell is cylindrical, the lower part of the shell is in an inverted frustum shape, the upper part and the lower part of the shell are communicated and integrally formed, a feed inlet is formed in the top of the shell, the bottom of the shell is opened to form a discharge outlet, and a filter residue outlet is formed in the side wall of the upper part of the shell;

the pair of grinding rods is vertically arranged in the shell and is positioned above the filter residue outlet, the upper ends of the grinding rods are rotatably connected to the top of the shell, a plurality of grinding blades are sleeved on the grinding rods at intervals from top to bottom, the grinding blades on the pair of grinding rods are alternately arranged at intervals, and projection parts from top to bottom are overlapped;

the pair of synchronous motors respectively drive the pair of grinding rods to rotate;

bottom plate mechanism, it is located grinding rod below, and be located filter residue export top, bottom plate mechanism includes:

the outer side of the first rubber ring is fixed on the side wall of the shell along the circumferential direction;

the fixed box is of an annular-like hollow three-dimensional structure, the outer side of the fixed box is fixed to the inner side of the first rubber ring along the circumferential direction, the upper surface of the fixed box is not higher than the upper surface of the first rubber ring, a rotating motor is arranged in the fixed box, and an output shaft of the rotating motor is horizontally arranged;

the side wall of the rotating plate is circumferentially contacted with the inner side wall of the fixed box, and the upper surface of the rotating plate is not higher than that of the fixed box;

the rotating shaft is fixed on the rotating plate along the radial direction, two ends of the rotating shaft can respectively penetrate into the fixed box in a rotating mode, and one end of the rotating shaft is fixedly connected with an output shaft of the rotating motor;

the four first fixed pulleys are positioned below the rotating plate, arranged on the side wall of the shell at equal intervals along the circumferential direction, and the central shaft of each first fixed pulley is fixedly connected with the output shaft of the first pulley motor;

the lower ends of the four flexible ropes are respectively fixed on the four first fixed pulleys, the upper ends of the four flexible ropes are fixed on the fixed box at equal intervals along the circumferential direction, and the four flexible ropes form an isosceles trapezoid; a filter mechanism located on the upper portion of the housing and located below the rotary plate, the filter mechanism comprising:

the pair of second fixed pulleys are symmetrically arranged on the side wall of the shell, a connecting line of the pair of second fixed pulleys is vertical to a central axis of the filter residue outlet, and the second fixed pulleys are positioned above the filter residue outlet;

the output shafts of the pair of second pulley motors are fixedly connected with the central shafts of the pair of second fixed pulleys;

the second rubber ring is positioned below the second fixed pulley, the outer side of the second rubber ring is in contact with the side wall of the shell along the circumferential direction, and the inner side of the second rubber ring is fixedly connected with a screen along the circumferential direction;

the upper ends of the pull ropes are fixed on the upper surfaces of the second fixed pulleys respectively, the lower ends of the pull ropes are symmetrically fixed on the upper surfaces of the second rubber rings, the pull ropes form a cross-like shape, and connecting lines at the lower ends of the pull ropes pass through the circle center of the second rubber ring;

the inner cylinder is coaxially arranged in the shell and is positioned below the second rubber ring, an annular cavity is formed by the inner cylinder and the shell, the bottom of the cavity is closed, and the upper end of the inner cylinder is in contact with the lower surface of the second rubber ring;

the outer side of the third rubber ring is circumferentially fixed on the side wall of the inner cylinder, a vibrating screen is circumferentially fixed on the inner side of the third rubber ring, the upper surface of the third rubber ring is in contact with the lower surface of the second rubber ring, the vibrating screen is driven by a vibrating motor, and the upper surface of the vibrating screen is in contact with the lower surface of the screen mesh;

the lower ends of the springs of each pair are symmetrically fixed at the bottom of the cavity, the upper ends of the springs of each pair are symmetrically fixed on the lower surface of the second rubber ring, and the symmetry axis of each pair of springs is vertical to the central connecting line of the second fixed pulleys of each pair;

the first electric cylinder and the second electric cylinder are symmetrically fixed at the bottom of the cavity, a symmetry axis passes through the central axis of the cavity and is parallel to a central connecting line of a pair of second fixed pulleys, moving ends of the first electric cylinder and the second electric cylinder are respectively fixed on the lower surface of the second rubber ring, and the first electric cylinder is positioned right below the filter residue outlet;

the striker plate is arranged on the side wall of the shell and is positioned right above the filter residue outlet, and the downward projection of the striker plate is positioned in the second rubber ring;

wherein, the second rubber circle sets up to: when the moving ends of the first electric cylinder and the second electric cylinder move upwards to the end point, the second rubber ring is inclined, and the lower side of the second rubber ring is in contact with the filter residue outlet.

Preferably, the rope pulling device further comprises a pair of second cover bodies, the pair of second cover bodies are respectively covered on the pair of second fixed pulleys, the tops of the second cover bodies are inclined, the lower sides of the second cover bodies are close to the axis of the shell, and a through hole is formed in the side wall of each second cover body for the rope pulling to pass through.

Preferably, the flexible rope fixing device further comprises four first cover bodies, the four first cover bodies are respectively covered on the four first fixed pulleys, the top of each first cover body is inclined, one lower side of each first cover body is close to the axis of the corresponding shell, and a through hole is formed in the side wall of each first cover body to allow the flexible rope to pass through.

Preferably, the striker plate is arranged obliquely, and the lower side of the striker plate is close to the axis of the shell.

Preferably, the mesh has a pore size no greater than the pore size of the vibrating screen.

Preferably, the filter residue outlet is communicated with a filter residue pipe, the filter residue pipe is obliquely arranged, and the free end of the filter residue pipe is lower than the fixed end of the filter residue pipe.

Preferably, be equipped with the inlet pipe on the feed inlet, the inlet pipe is the radius platform form, inlet pipe up end upper cover is equipped with the tube cap.

Preferably, the downward projection of the third rubber ring is located in the downward projection range of the second rubber ring.

The invention at least comprises the following beneficial effects:

firstly, in order to make the coffee bean powder more uniform and avoid the influence on the coffee bean quality caused by temperature rise due to long-time grinding, a pair of grinding rods are adopted for grinding, the grinding blades are alternately arranged at intervals to make the grinding blades fully contact with the coffee beans, the coffee beans are more easily loaded and cut into pieces, the grinding time is shortened, and then a bottom plate mechanism is utilized to realize the purpose of quickly transferring the ground coffee beans to a filtering mechanism;

secondly, the pair of synchronous motors drive the pair of grinding rods to rotate in opposite directions, namely one of the grinding rods rotates anticlockwise, the other of the grinding rods rotates clockwise, coffee beans can move towards the middle of the pair of grinding rods and are crushed at the projection superposition part of the grinding blade, and the crushing punching efficiency is improved;

thirdly, the rotating motor drives the rotating shaft to rotate, so that the rotating plate can be driven to rotate, when the rotating plate rotates to the horizontal position, the upper part of the shell is in a closed state, coffee beans are positioned in a space where the pair of grinding rods are positioned, the coffee beans are favorably ground, and when the rotating plate rotates to a position not positioned at the horizontal position, the upper part of the shell is in an open state, and the ground coffee beans fall from the open position;

fourthly, the four first pulley motors drive the four first fixed pulleys to rotate simultaneously, so that the four flexible ropes are wound on the four first fixed pulleys, the fixed box is pulled to move downwards, the first rubber ring is in an inverted circular truncated cone shape, ground coffee beans fall downwards when rotating from the rotating plate to an open state, and when the four first pulley motors drive the four first fixed pulleys to rotate simultaneously, the four flexible ropes are untied from the four first fixed pulleys, so that the fixed box moves upwards, the first rubber ring is in a horizontal circular ring shape, and the grinding rods are favorable for fully grinding the coffee beans;

fifthly, starting a second pulley motor to drive a second fixed pulley to rotate, so that the pull rope can be wound on the second fixed pulley, the second rubber ring is curled from two sides to the symmetrical axis, filter residues of coffee beans left above the screen are concentrated, the filter residues are convenient to go out from a filter residue outlet, starting the second pulley motor to rotate in the opposite direction, the pull rope can be unwound, and the second rubber ring can recover to a flat circular ring shape, so that the coffee beans can be conveniently screened next time;

the outer sides of the sixth rubber ring and the third rubber ring are circumferentially fixed on the side wall of the inner cylinder, a vibrating screen is circumferentially fixed on the inner side of the third rubber ring, the upper surface of the third rubber ring is in contact with the lower surface of the second rubber ring, the vibrating screen is driven by a vibrating motor, the upper surface of the vibrating screen is in contact with the lower surface of the screen, and the vibrating screen can drive the screen in contact with the vibrating screen to vibrate, so that the crushed coffee beans are screened;

the lower ends of the springs are symmetrically fixed at the bottom of the cavity, the upper ends of the springs are symmetrically fixed on the lower surface of the second rubber ring, the symmetry axis of each pair of springs is perpendicular to the central connecting line of the second fixed pulleys, the springs are deformed in a recovery mode, the second rubber ring can be pulled back to the initial state in a balanced and reliable mode, even if the lower surface of the second rubber ring is tightly attached to the third rubber ring, the screen is tightly attached to the vibrating screen, and preparation is made for next screening;

eighth, first electric jar and second electric jar, first electric jar with the second electric jar symmetry is fixed in the cavity bottom, and the symmetry axis passes through the axis of cavity, and the symmetry axis is on a parallel with the central connecting line of a pair of second fixed pulley simultaneously, the removal end of first electric jar and second electric jar is fixed respectively on the lower surface of second rubber circle, first electric jar is located under the filter residue export, starts first electric jar and second electric jar, can overcome the tensile force effect of spring to second rubber circle, makes second rubber circle rebound, arrives one side and filter residue export parallel and level, and relative opposite side is higher than the filter residue export, makes second rubber circle and screen cloth be the tilt state to incline towards the filter residue export, makes things convenient for the filter residue to go out from the filter residue export, combines the effect of a pair of stay cord, makes the second rubber circle curl, simultaneously, starts the removal end of second electric jar and round trip movement from top to bottom, and the terminal point of controlling the downward movement is not lower than the filter residue outlet, so that the second rubber ring and the screen can generate a shaking effect, the filter residue can be moved towards the filter residue outlet, the speed of removing the filter residue is accelerated, and meanwhile, the filter residue left on the second rubber ring and the screen can be more thoroughly removed.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

FIG. 1 is a schematic cross-sectional view of the overall structure of one embodiment of the present invention;

FIG. 2 is a top detail view of one embodiment of the floor mechanism of the present invention;

FIG. 3 is a detailed view of one embodiment of the second rubber ring of the present invention;

FIG. 4 is a schematic view of a second rubber ring of one embodiment of the filter mechanism of the present invention in a horizontal configuration;

FIG. 5 is a schematic diagram of a second rubber ring of one embodiment of the filter mechanism of the present invention in an inclined configuration;

FIG. 6 is a schematic cross-sectional view of the second rubber ring of one embodiment of the filter mechanism of the present invention taken in another direction when the second rubber ring is horizontal;

fig. 7 is a schematic cross-sectional view of the second rubber ring of one embodiment of the filter mechanism of the present invention in another direction when the second rubber ring is inclined.

Detailed Description

The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.

It should be noted that in the description of the present invention, the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which are only for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

As shown in fig. 1 to 7, the present invention provides a coffee bean grinding and filtering device, comprising:

the device comprises a shell 1, a filter element and a filter element, wherein the upper part of the shell 1 is cylindrical, the lower part of the shell is in an inverted frustum shape, the upper part and the lower part of the shell are communicated and integrally formed, a feed inlet is formed in the top of the shell 1, the bottom of the shell 1 is opened to form a discharge outlet, and a filter residue outlet 11 is formed in the side wall of the upper;

the pair of grinding rods 2 are vertically arranged in the shell 1 and are positioned above the filter residue outlet 11, the upper ends of the grinding rods 2 are rotatably connected to the top of the shell 1, a plurality of grinding blades 21 are sleeved on the grinding rods 2 at intervals from top to bottom, the grinding blades 21 on the pair of grinding rods 2 are alternately arranged at intervals, projection parts of the grinding blades coincide from top to bottom, and the grinding blades 21 are alternately arranged at intervals, so that the grinding blades 21 can be fully contacted with coffee beans, and the coffee beans are more easily filled in the coffee beans and are more easily cut;

the pair of synchronous motors respectively drive the pair of grinding rods 2 to rotate, the pair of synchronous motors drive the pair of grinding rods 2 to rotate in opposite directions, namely one synchronous motor rotates anticlockwise, the other synchronous motor rotates clockwise, coffee beans can move towards the middle of the pair of grinding rods 2 and are crushed at the projection superposition part of the grinding blade 21, and crushing and flushing efficiency is improved;

bottom plate mechanism 3, it is located grinding rod 2 below, and be located 11 tops of filter residue export, bottom plate mechanism 3 includes:

a first rubber ring 31, the outer side of which is fixed on the side wall of the shell 1 along the circumferential direction;

the fixing box 32 is of a ring-like hollow three-dimensional structure, the outer side of the fixing box 32 is fixed to the inner side of the first rubber ring 31 along the circumferential direction, the upper surface of the fixing box 32 is not higher than that of the first rubber ring 31, a rotating motor 36 is arranged in the fixing box 32, and an output shaft of the rotating motor 36 is horizontally arranged;

the rotating plate 33 is circular, the side wall of the rotating plate 33 is in circumferential contact with the inner side wall of the fixed box 32, and the upper surface of the rotating plate 33 is not higher than the upper surface of the fixed box 32;

the rotating shaft 35 is fixed on the rotating plate 33 along the radial direction, two ends of the rotating shaft 35 can respectively penetrate into the fixed box 32 in a rotating mode, one end of the rotating shaft is fixedly connected with an output shaft of the rotating motor 36, the rotating motor 36 drives the rotating shaft 35 to rotate, so that the rotating plate 33 can be driven to rotate, when the rotating plate 33 rotates to the horizontal position, the upper portion of the shell 1 is in a closed state, coffee beans are located in a space where the pair of grinding rods 2 are located, grinding of the coffee beans is facilitated, and when the rotating plate 33 rotates to be not located at the horizontal position, the upper portion of the shell 1 is in an open state, and the ground coffee beans fall from the open position;

the four first fixed pulleys are positioned below the rotating plate 33, are arranged on the side wall of the shell 1 at equal intervals along the circumferential direction, and the central shaft of each first fixed pulley is fixedly connected with the output shaft of the first pulley motor;

the lower ends of the four flexible ropes 34 are respectively fixed on the four first fixed pulleys, the upper ends of the four flexible ropes 34 are fixed on the fixed box 32 at equal intervals along the circumferential direction, the four flexible ropes 34 form an isosceles trapezoid, and the four first pulley motors simultaneously drive the four first fixed pulleys to rotate, so that the four flexible ropes 34 are wound on the four first fixed pulleys, the fixed box 32 is pulled to move downwards, the first rubber ring 31 is in an inverted circular table shape, and ground coffee beans fall down when rotating to an open state from the rotating plate;

when the four first pulley motors drive the four first fixed pulleys to rotate simultaneously, the four flexible pulleys are loosened from the four first fixed pulleys, so that the fixed box 32 moves upwards, the first rubber ring 31 is in a reverse horizontal ring shape, and the grinding rod 2 is favorable for fully grinding coffee beans;

a filter mechanism 4 located at an upper portion of the housing 1 and below the rotary plate 33, the filter mechanism 4 including:

the pair of second fixed pulleys 41 are symmetrically arranged on the side wall of the shell 1, a connecting line of the pair of second fixed pulleys 41 is vertical to a central axis of the filter residue outlet 11, and the second fixed pulleys 41 are positioned above the filter residue outlet 11;

a pair of second pulley motors, the output shafts of which are fixedly connected with the central shafts of the pair of second fixed pulleys 41;

a second rubber ring 42 located below the second fixed pulley 41, wherein the outer side of the second rubber ring 42 is in contact with the sidewall of the housing 1 along the circumferential direction, and the inner side of the second rubber ring 42 is fixedly connected with a screen 43 along the circumferential direction;

the upper ends of the pair of pulling ropes 44 are respectively fixed on the upper surface and the lower end of the pair of second fixed pulleys 41 and symmetrically fixed on the upper surface of the second rubber ring 42, the pair of pulling ropes 44 form a cross shape, a connecting line at the lower ends of the pair of pulling ropes 44 passes through the circle center of the second rubber ring 42, the second pulley motor is started to drive the second fixed pulley 41 to rotate, the pulling ropes 44 can be wound on the second fixed pulley 41, so that the second rubber ring 42 is curled towards a symmetric axis from two sides, filter residues of coffee beans left above the screen 43 are concentrated, the filter residues are convenient to go out from the filter residue outlet 11, the second pulley motor is started to rotate in the opposite direction, the pulling ropes 44 can be unwound, the second rubber ring 42 can recover to a flat circular ring shape, and the coffee beans can be conveniently screened next time;

the inner cylinder 45 is coaxially arranged in the shell 1 and is positioned below the second rubber ring 42, the inner cylinder 45 and the shell 1 form an annular cavity 46, the bottom of the cavity 46 is closed, and the upper end of the inner cylinder 45 is in contact with the lower surface of the second rubber ring 42;

a third rubber ring 47, the outer side of which is circumferentially fixed on the side wall of the inner cylinder 45, a vibrating screen 48 is circumferentially fixed on the inner side of the third rubber ring 47, the upper surface of the third rubber ring 47 is in contact with the lower surface of the second rubber ring 42, the vibrating screen 48 is driven by a vibrating motor, the upper surface of the vibrating screen 48 is in contact with the lower surface of the screen 43, and the vibrating screen 48 can vibrate to drive the screen 43 in contact therewith, so that the crushed coffee beans are screened;

the springs 49 are arranged at intervals, the lower ends of the springs 49 are symmetrically fixed at the bottom of the cavity 46, the upper ends of the springs 49 are symmetrically fixed on the lower surface of the second rubber ring 42, the symmetry axis of each spring 49 is perpendicular to the central connecting line of the second fixed pulleys 41, the second rubber ring 42 can be pulled back to the initial state in a balanced and reliable manner due to the recovery deformation of the springs 49, and even if the lower surface of the second rubber ring 42 is tightly attached to the third rubber ring 47, the screen 43 is tightly attached to the screen 43 of the vibrating screen 48, so that preparation is provided for next screening;

first electric cylinder and second electric cylinder, first electric cylinder with the symmetry of second electric cylinder is fixed in cavity 46 bottom, and the symmetry axis passes through the axis of cavity 46, and the symmetry axis is on a parallel with the central connecting line of a pair of second fixed pulley 41 simultaneously, the removal end of first electric cylinder with the second electric cylinder is fixed respectively on the lower surface of second rubber circle 42, first electric cylinder is located under filter residue export 11, starts first electric cylinder and second electric cylinder, can overcome the pulling force effect of spring 49 to second rubber circle 42, makes second rubber circle 42 rebound, to one side and export 11 parallel and level with the filter residue, and the opposite other side is higher than filter residue export 11, makes second rubber circle 42 and screen cloth 43 be the tilt state to slope towards filter residue export 11, makes things convenient for the filter residue to go out from filter residue export 11, combines the effect of a pair of stay cord 44, makes second rubber circle 42 curl, meanwhile, the moving end of the second electric cylinder is started to move up and down, and the terminal point of the downward movement is controlled not to be lower than the filter residue outlet 11, so that the second rubber ring 42 and the screen 43 can generate a shaking effect, the filter residue is helped to move towards the filter residue outlet 11, the speed of removing the filter residue is increased, and meanwhile, the filter residue left on the second rubber ring 42 and the screen 43 can be removed more thoroughly;

the baffle plate 40 is arranged on the side wall of the shell 1 and is positioned right above the filter residue outlet 11, and the downward projection of the baffle plate 40 is positioned in the second rubber ring 42, so that the crushed coffee beans are prevented from directly falling to the filter residue outlet 11 without being screened;

wherein the second rubber ring 42 is configured as follows: when the moving ends of the first electric cylinder and the second electric cylinder move upwards to the end point, the second rubber ring 42 is inclined, and the lower side of the second rubber ring 42 is in contact with the filter residue outlet 11.

In the technical scheme, in order to make the coffee bean powder more uniform and avoid the influence on the quality of the coffee beans caused by the temperature rise due to long-time grinding, the grinding rods 2 are adopted for grinding, the grinding blades 21 are alternately arranged at intervals to ensure that the grinding blades 21 can be fully contacted with the coffee beans, the coffee beans are more easily filled and cut, the grinding time is shortened, the ground coffee beans are quickly transferred into the filtering mechanism 4 by utilizing the bottom plate mechanism 3, in the process, as the filter bodies are positioned in the same shell 1, the filter bodies are convenient, quick, safe and reliable, and then are filtered by the filter mechanism 4, the crushed coffee beans are screened, oversize materials, namely filter residues, can be accurately, quickly and thoroughly discharged from the filter residue outlet 11 through a series of actions of rising, curling, inclining and shaking of the second rubber ring 42 and the screen 43, and undersize materials, namely uniformly crushed coffee powder, directly flow out from the discharge hole.

In another technical scheme, still include a pair of second cover body, a pair of second cover body covers respectively and establishes on a pair of second fixed pulley 41, second cover body top is the slope form, and its lower one side is close to the axis of casing 1, a through-hole has been seted up on the second cover body lateral wall for stay cord 44 passes, avoids coffee beans to enter into on second fixed pulley 41, influences second fixed pulley 41 and rotates steadily, and the slope form can avoid falling the coffee beans at second cover body top to stop at its top, can slide down because of its self gravity.

In another kind of technical scheme, still include four first cover bodies, four first cover bodies cover respectively and establish on four first fixed pulleys, first cover body top is the slope form, and its lower one side is close to the axis of casing 1, a through-hole has been seted up on the first cover body lateral wall, for flexible rope 34 passes, avoids on the coffee beans enters into first fixed pulley, influences the stable rotation of first fixed pulley, and the slope form can avoid falling the coffee beans at first cover body top and stop at its top, can slide down because of its self gravity.

In another technical scheme, the striker plate 40 is obliquely arranged, the lower side of the striker plate 40 is close to the axis of the shell 1, so that coffee beans falling on the striker plate 40 can be prevented from staying on the upper surface of the striker plate and can slide down due to the gravity of the striker plate.

In another embodiment, the mesh 43 has a diameter no greater than the diameter of the vibrating screen 48, ensuring that the coffee bean powder sifted through the mesh 43 can be sifted out of the vibrating screen 48 and separated into the undersize.

In another kind of technical scheme, the intercommunication has the filter residue pipe on the filter residue export 11, the filter residue pipe slope sets up, the free end of filter residue pipe is less than its stiff end, makes things convenient for deriving of filter residue.

In another kind of technical scheme, be equipped with the inlet pipe on the feed inlet, the inlet pipe is the radius platform form, inlet pipe up end upper cover is equipped with the tube cap, makes things convenient for the feeding.

In another technical scheme, the downward projection of the third rubber ring 47 is located in the downward projection range of the second rubber ring 42, so that undersize screened from the screen 43 directly falls on the vibrating screen 48 instead of the third rubber ring 47, and the screening efficiency is improved.

While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.

Claims (8)

1. Coffee bean grinding and filtering device, characterized by comprising:
the upper part of the shell is cylindrical, the lower part of the shell is in an inverted frustum shape, the upper part and the lower part of the shell are communicated and integrally formed, a feed inlet is formed in the top of the shell, the bottom of the shell is opened to form a discharge outlet, and a filter residue outlet is formed in the side wall of the upper part of the shell;
the pair of grinding rods is vertically arranged in the shell and is positioned above the filter residue outlet, the upper ends of the grinding rods are rotatably connected to the top of the shell, a plurality of grinding blades are sleeved on the grinding rods at intervals from top to bottom, the grinding blades on the pair of grinding rods are alternately arranged at intervals, and projection parts from top to bottom are overlapped;
the pair of synchronous motors respectively drive the pair of grinding rods to rotate;
bottom plate mechanism, it is located grinding rod below, and be located filter residue export top, bottom plate mechanism includes:
the outer side of the first rubber ring is fixed on the side wall of the shell along the circumferential direction;
the fixed box is of an annular-like hollow three-dimensional structure, the outer side of the fixed box is fixed to the inner side of the first rubber ring along the circumferential direction, the upper surface of the fixed box is not higher than the upper surface of the first rubber ring, a rotating motor is arranged in the fixed box, and an output shaft of the rotating motor is horizontally arranged;
the side wall of the rotating plate is circumferentially contacted with the inner side wall of the fixed box, and the upper surface of the rotating plate is not higher than that of the fixed box;
the rotating shaft is fixed on the rotating plate along the radial direction, two ends of the rotating shaft can respectively penetrate into the fixed box in a rotating mode, and one end of the rotating shaft is fixedly connected with an output shaft of the rotating motor;
the four first fixed pulleys are positioned below the rotating plate, arranged on the side wall of the shell at equal intervals along the circumferential direction, and the central shaft of each first fixed pulley is fixedly connected with the output shaft of the first pulley motor;
the lower ends of the four flexible ropes are respectively fixed on the four first fixed pulleys, the upper ends of the four flexible ropes are fixed on the fixed box at equal intervals along the circumferential direction, and the four flexible ropes form an isosceles trapezoid;
a filter mechanism located on the upper portion of the housing and located below the rotary plate, the filter mechanism comprising:
the pair of second fixed pulleys are symmetrically arranged on the side wall of the shell, a connecting line of the pair of second fixed pulleys is vertical to a central axis of the filter residue outlet, and the second fixed pulleys are positioned above the filter residue outlet;
the output shafts of the pair of second pulley motors are fixedly connected with the central shafts of the pair of second fixed pulleys;
the second rubber ring is positioned below the second fixed pulley, the outer side of the second rubber ring is in contact with the side wall of the shell along the circumferential direction, and the inner side of the second rubber ring is fixedly connected with a screen along the circumferential direction;
the upper ends of the pull ropes are fixed on the upper surfaces of the second fixed pulleys respectively, the lower ends of the pull ropes are symmetrically fixed on the upper surfaces of the second rubber rings, the pull ropes form a cross-like shape, and connecting lines at the lower ends of the pull ropes pass through the circle center of the second rubber ring;
the inner cylinder is coaxially arranged in the shell and is positioned below the second rubber ring, an annular cavity is formed by the inner cylinder and the shell, the bottom of the cavity is closed, and the upper end of the inner cylinder is in contact with the lower surface of the second rubber ring;
the outer side of the third rubber ring is circumferentially fixed on the side wall of the inner cylinder, a vibrating screen is circumferentially fixed on the inner side of the third rubber ring, the upper surface of the third rubber ring is in contact with the lower surface of the second rubber ring, the vibrating screen is driven by a vibrating motor, and the upper surface of the vibrating screen is in contact with the lower surface of the screen mesh;
the lower ends of the springs of each pair are symmetrically fixed at the bottom of the cavity, the upper ends of the springs of each pair are symmetrically fixed on the lower surface of the second rubber ring, and the symmetry axis of each pair of springs is vertical to the central connecting line of the second fixed pulleys of each pair;
the first electric cylinder and the second electric cylinder are symmetrically fixed at the bottom of the cavity, a symmetry axis passes through the central axis of the cavity and is parallel to a central connecting line of a pair of second fixed pulleys, moving ends of the first electric cylinder and the second electric cylinder are respectively fixed on the lower surface of the second rubber ring, and the first electric cylinder is positioned right below the filter residue outlet;
the striker plate is arranged on the side wall of the shell and is positioned right above the filter residue outlet, and the downward projection of the striker plate is positioned in the second rubber ring;
wherein, the second rubber circle sets up to: when the moving ends of the first electric cylinder and the second electric cylinder move upwards to the end point, the second rubber ring is inclined, and the lower side of the second rubber ring is in contact with the filter residue outlet.
2. The coffee bean grinding and filtering device as recited in claim 1, further comprising a pair of second covers respectively covering the pair of second fixed pulleys, wherein the top of the second cover is inclined, the lower side of the second cover is close to the axis of the housing, and a through hole is formed in the side wall of the second cover for the pulling rope to pass through.
3. The coffee bean grinding and filtering device as recited in claim 1, further comprising four first covers, wherein the four first covers are respectively covered on the four first fixed pulleys, the top of the first cover is inclined, the lower side of the first cover is close to the axis of the housing, and a through hole is formed in the side wall of the first cover for the flexible rope to pass through.
4. The coffee bean grinding filter device of claim 1, wherein the striker plate is disposed obliquely with a lower side of the striker plate being close to the axis of the housing.
5. The coffee bean milling filter apparatus of claim 1, wherein the mesh has a pore size no larger than the pore size of the vibrating screen.
6. A coffee bean milling filter device as claimed in claim 1, wherein a filter residue pipe is connected to the filter residue outlet, the filter residue pipe is disposed in an inclined manner, and a free end of the filter residue pipe is lower than a fixed end thereof.
7. The coffee bean grinding and filtering device as claimed in claim 1, wherein the feed inlet is provided with a feed pipe, the feed pipe is in a shape of an inverted truncated cone, and a pipe cover is arranged on the upper end surface of the feed pipe in a covering manner.
8. The coffee bean grinding filter device of claim 1, wherein the downward projection of the third rubber ring is located within the downward projection of the second rubber ring.
CN201810680158.6A 2018-06-27 2018-06-27 Coffee bean grinding and filtering device CN108855446B (en)

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