CN219206650U

CN219206650U - Grinding disc and grinding machine

Info

Publication number: CN219206650U
Application number: CN202223039659.7U
Authority: CN
Inventors: 金文�; 胡伟
Original assignee: Ningbo Kedly Appliance Industry Co ltd
Current assignee: Ningbo Kedly Appliance Industry Co ltd
Priority date: 2022-11-15
Filing date: 2022-11-15
Publication date: 2023-06-20
Anticipated expiration: 2032-11-15

Abstract

The utility model belongs to the technical field of grinding, and provides a grinding disc, which comprises a movable cutter disc assembly, a fixed cutter disc assembly and a mounting shell; the fixed cutter disc assembly and the movable cutter disc assembly are matched with each other to form a grinding gap; the fixed cutter disc assembly can move along the axial direction of the fixed cutter disc assembly so as to adjust the size of the grinding gap; the fixed cutter disc assembly is arranged on the mounting shell, and a guide limiting structure which is used for preventing the fixed cutter disc assembly from rotating and guiding the fixed cutter disc assembly to axially move is arranged between the fixed cutter disc assembly and the mounting shell; the movable cutter head assembly rotates under external driving. The utility model also discloses a grinder. The utility model is beneficial to preventing the situation of jump in the grinding process, thereby being beneficial to improving the grinding thickness.

Description

Grinding disc and grinding machine

Technical Field

The utility model belongs to the technical field of grinding, and particularly relates to a grinding disc and a grinding machine.

Background

The conventional coffee grinder can only grind coffee powder with one size and size, and cannot be adapted to users with different taste requirements, so that the prior art discloses a coffee grinder capable of adjusting the size and size of the coffee powder, for example, an utility model patent with an issue number of CN 211130766U, namely, a grinding mechanism and a grinder. In order to prevent a gear jump when grinding in a specified thickness gear, the above-mentioned publication sets up a plurality of elastic ejector rods on the upper grinding disc assembly and cooperates with a plurality of concave parts on the host computer, so that the upper grinding disc assembly can not only move up and down axially to adjust the grinding thickness through rotation, but also rotate and limit through cooperation of the elastic ejector rods and the concave parts, so as to prevent the upper grinding disc assembly from accidentally rotating and gear jump in the grinding process, and ensure that the grinding thickness is kept consistent.

However, the locking force of the elastic ejector rod on the concave part of the main machine cannot be too large, otherwise, the rotation gear shifting of the upper grinding disc assembly is not facilitated, certain vibration is generated in the grinding process, the unexpected rotation gear shifting condition of the upper grinding disc assembly can be easily caused when coffee beans are ground due to the fact that the locking force cannot be too large, and therefore the preset uniform grinding thickness cannot be achieved.

Disclosure of Invention

In order to overcome the above-mentioned drawbacks of the prior art, an object of the present utility model is to provide a grinding disc which is advantageous in preventing the occurrence of a jump in gear during the grinding process, and thus in improving the grinding thickness. The technical scheme adopted for solving the technical problems is as follows:

an abrasive disk comprises a movable cutter disk assembly, a fixed cutter disk assembly and a mounting shell;

the fixed cutter disc assembly and the movable cutter disc assembly are matched with each other to form a grinding gap; the fixed cutter disc assembly can move along the axial direction of the fixed cutter disc assembly so as to adjust the size of the grinding gap;

the fixed cutter disc assembly is arranged on the mounting shell, and a guide limiting structure which is used for preventing the fixed cutter disc assembly from rotating and guiding the fixed cutter disc assembly to axially move is arranged between the fixed cutter disc assembly and the mounting shell;

the cutterhead assembly may be externally driven for rotation.

According to a preferred scheme of the utility model, the guide limiting structure comprises a guide groove and a sliding block, wherein the guide groove extends along the axial direction, and the sliding block is arranged in the guide groove in a matched sliding manner;

the sliding block bulge is arranged on the outer wall of the fixed cutter disc assembly, and the guide groove is arranged on the mounting shell.

the sliding block protrusion is arranged on the mounting shell, and the guide groove is arranged on the outer wall of the fixed cutter disc assembly.

Preferably, the guiding and limiting structure is provided with a plurality of guiding and limiting structures, and the guiding and limiting structures are distributed at equal intervals along the circumference of the fixed cutter disc assembly.

According to a preferred scheme of the utility model, the fixed cutter disc assembly comprises a fixed cutter disc and a fixed cutter disc fixing seat; the fixed cutter disc fixing seat is in a cylindrical shape, and the fixed cutter disc is arranged in the fixed cutter disc fixing seat;

the guiding and limiting structure is arranged between the fixed cutter disc fixing seat and the mounting shell.

Preferably, the mounting shell is arranged in a hollow way and comprises an upper shell and an inner shell; the inner shell part is smaller than the upper outer shell, the inner shell part is overlapped with the axis of the upper outer shell, and the inner shell part is arranged in the upper outer shell and extends downwards;

the fixed cutter disc assembly is arranged in the inner cavity of the inner shell part.

Preferably, the guiding and limiting structure is arranged between the fixed cutter disc assembly and the inner shell part.

Preferably, a first sealing ring is arranged between the fixed cutter disc assembly and the inner shell part.

Preferably, a mounting frame is arranged at the hollow position of the upper shell, and the movable cutter head assembly is detachably mounted on the mounting frame.

Preferably, the mounting frame comprises a plurality of connecting pieces and a mounting cylinder, the mounting cylinder is arranged on the axis of the upper shell, one ends of the connecting pieces are connected with the outer wall of the mounting cylinder, and the other ends of the connecting pieces are connected with the inner wall of the upper shell.

In a preferred embodiment of the present utility model, the movable cutter assembly includes a movable cutter and a transmission shaft; the lower end of the transmission shaft is connected with the movable cutter head, and the upper end of the transmission shaft is detachably connected with the mounting cylinder and extends upwards after penetrating through the mounting cylinder.

Preferably, a first inner shaft sleeve and a second inner shaft sleeve are arranged between the transmission shaft and the inner wall of the mounting cylinder, and the second inner shaft sleeve is arranged outside the first inner shaft sleeve.

Preferably, the transmission shaft is provided with a pin hole which penetrates radially; the pin holes are inserted with fixing pins, the fixing pins are located above the mounting cylinder, and the movable cutter head assembly can be mounted on the mounting frame.

Preferably, elastic clamping pieces are arranged on two sides of the fixing pin, one end of each elastic clamping piece is fixedly connected with one end of the fixing pin, and the other end of each elastic clamping piece extends freely along the axial direction of the fixing pin; the elastic clamping piece is provided with an arc clamping part, and the arc clamping parts of the elastic clamping pieces on two sides of the fixing pin form a positioning opening ring for tightening and positioning the transmission shaft.

Preferably, a flat part is arranged at the upper end of the transmission shaft, and the outer contour of the flat part is arranged in a polygonal shape.

Preferably, the top surface of the upper shell is provided with a feed chute, and the feed chute is obliquely arranged and communicated with the hollow position of the upper shell.

Preferably, a plurality of positioning grooves are formed in the edge of the top surface of the upper shell, and openings are formed in the outer sides of the positioning grooves.

Preferably, a magnet is arranged on the upper shell.

Preferably, the magnet is disposed on a lower surface of the upper case; an upper shell support is arranged below the mounting shell and is detachably connected with the mounting shell;

a limiting ring for limiting the movement of the magnet is arranged on the lower surface of the upper shell; the upper shell support is provided with a supporting block, and the supporting block is arranged corresponding to the magnet; the magnet is arranged in the limiting ring and supported on the supporting block.

In a preferred scheme of the utility model, the rotary adjusting device further comprises a screwing adjusting assembly for driving the fixed cutter disc assembly to axially move.

Preferably, the screwing adjusting assembly is connected with the fixed cutter disc assembly through a thread structure.

Preferably, the thread structure comprises an external thread and an internal thread;

the external thread is arranged on the outer wall of the fixed cutter disc assembly, and the internal thread is arranged on the screwing adjusting assembly; the external thread is positioned below the guide limiting structure.

Preferably, the screw adjusting assembly comprises a screw shell and an adjusting ring;

the adjusting ring is arranged on the screwing shell; the adjusting ring is sleeved on the outer side of the fixed cutter disc assembly, and the thread structure is arranged between the fixed cutter disc assembly and the adjusting ring;

when the screwing shell is screwed, the adjusting ring is driven to rotate, and under the action of the threaded structure, the fixed cutter disc assembly is driven to move up and down axially so as to adjust the size of the grinding gap.

Preferably, the screwing shell comprises a lower shell and a bottom shell which is annularly arranged;

the bottom shell is detachably arranged on the inner wall of the lower shell;

the adjusting ring is supported on the bottom shell.

Preferably, the outer wall of the adjusting ring is provided with a supporting part, and the supporting part is arranged in a protruding way outwards along the radial direction;

the bottom shell is provided with an axial raised bearing part;

the support portion is supported on the receiving portion.

Preferably, a first gear ring is arranged at the bottom of the supporting part; the top of the bearing part is provided with a second gear ring; the first gear ring and the second gear ring are mutually matched and connected.

Preferably, a sealing connecting ring is arranged in the middle of the bottom shell;

the outer wall of the fixed cutter disc assembly extends to a position corresponding to the sealing connection ring;

and a second sealing ring is arranged between the sealing connecting ring and the outer wall of the fixed cutter disc assembly.

Preferably, a third sealing ring is arranged between the outer wall of the bottom shell and the inner wall of the lower shell.

Preferably, the bottom shell is provided with a mounting ring for connecting with an external container, and the mounting ring extends downwards along the axial direction;

the inner wall of the mounting ring is provided with a mounting groove which is used for being matched and mounted with a lock catch on an external container;

the mounting groove comprises a first mounting groove and a second mounting groove, the first mounting groove extends along the axial direction, the second mounting groove is perpendicular to the first mounting groove, and the second mounting groove is communicated with the first mounting groove.

Preferably, a locking lug is arranged in the second mounting groove.

Preferably, a fourth sealing ring is arranged at the top of the inner side of the mounting ring. Specifically, the top of the inner side of the mounting ring is provided with an annular groove, and the fourth sealing ring is arranged in the annular groove and is used for being matched with an opening of a cup, so that a sealing effect is achieved, and coffee powder in the grinding process is prevented from falling out of the cup.

Preferably, a supporting table is arranged in the lower shell, and the upper shell bracket is supported on the supporting table.

Preferably, a supporting ring is arranged between the lower shell and the adjusting ring;

the support ring is positioned on the outer side of the inner shell part, the supporting table of the lower outer shell is supported on the support ring, and the support ring is supported on the top of the adjusting ring.

Preferably, an elastic positioning component is arranged on the upper shell, and comprises a positioning piece and an elastic element;

the support platform is provided with a plurality of positioning holes which are arranged at equal intervals along the circumferential direction by taking the axis of the lower shell as the center;

under the action of the elastic force of the elastic element, the lower end of the positioning piece is abutted against the positioning hole.

Preferably, the positioning piece is a positioning rod, and the positioning rod is provided with a clamping part;

the bottom of the upper shell is provided with a downward extending assembly cylinder; the positioning rod is arranged in the assembly barrel;

the upper shell support is provided with an assembly hole, and the assembly hole is arranged corresponding to the assembly cylinder; the lower end of the positioning rod passes through the assembly hole and then abuts against the positioning hole of the supporting table.

Preferably, the elastic element is a spring, and the spring is sleeved on the positioning rod.

One end of the spring abuts against the top of the clamping part, and the other end of the spring abuts against the top of the assembly cylinder.

Preferably, an assembly groove is formed in the inner wall of the upper end of the lower shell, and the lower end of the outer wall of the upper shell is correspondingly arranged in the assembly groove.

Preferably, a fifth sealing ring is arranged between the assembly groove and the lower end of the outer wall of the upper shell.

Another object of the present utility model is to provide a grinding machine comprising the above-mentioned grinding disc.

A grinder comprising the grinding disc, a main machine and a cup;

the power output piece of the main machine is detachably connected with the movable cutter head assembly of the grinding disc; the shell of the host is detachably connected with the mounting shell of the grinding disc;

when the cup is arranged below the grinding gap of the grinding disc, the top opening of the cup is communicated with the discharge hole of the grinding gap.

Preferably, the cup comprises a cup body and an annular assembly part, wherein the annular assembly part is arranged at the top of the cup body, a plurality of catches are arranged on the outer wall of the annular assembly part, and a plurality of catch protrusions are arranged.

Preferably, the middle part of the lock catch is provided with a middle groove. Specifically, the middle groove is arranged corresponding to the locking convex block so as to prevent loosening.

Preferably, the device further comprises a bracket;

the host is mounted on the bracket.

Preferably, the bracket comprises a chassis and two oppositely arranged struts; one end of each supporting rod is connected with the shell of the host machine, and the other end of each supporting rod is connected with the chassis.

Preferably, the two supporting rods are obliquely arranged from top to bottom to two sides respectively, and an assembly area for installing the grinding disc and the cup is formed between the two supporting rods.

Preferably, after the cup is assembled with the grinding disc, the cup is arranged separately from the chassis.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the grinding disc disclosed by the utility model, the guiding limiting structure which is used for preventing the fixed cutter disc assembly from rotating and guiding the fixed cutter disc assembly to axially move is arranged between the fixed cutter disc assembly and the mounting shell, so that the fixed cutter disc assembly is effectively prevented from rotating through the guiding limiting structure in the grinding process, the grinding gap between the fixed cutter disc assembly and the movable cutter disc assembly is ensured to be consistent, the jump situation under the influence of grinding vibration is avoided, the grinding thickness is ensured, the grinding quality of coffee is improved, and the coffee brewing taste is improved. Simultaneously, when carrying out axial position adjustment to the fixed cutter disc subassembly, under the direction effect of direction limit structure, let the fixed cutter disc subassembly smoothly and steadily carry out the axial and reciprocate, realize grinding the regulation in clearance to realize the regulation of coffee grinding thickness.

2. Based on the grinding disc, the utility model discloses a grinding machine, which has the advantage of accurate and uniform grinding thickness, is favorable for guaranteeing the grinding quality of coffee, is detachably connected with a host machine, is convenient to disassemble and assemble and use, and is convenient to clean.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a perspective view of the polishing pad of the present utility model.

Fig. 2 is a front view of the abrasive disk of the present utility model.

Fig. 3 is a top view of the abrasive disk of the present utility model.

Fig. 4 is a cross-sectional view A-A of fig. 3.

Fig. 5 is a sectional view of B-B in fig. 3.

Fig. 6 is a first perspective exploded view of the abrasive disk of the present utility model.

Fig. 7 is a second perspective exploded view of the abrasive disk of the present utility model.

Fig. 8 is a perspective view of the upper housing.

Fig. 9 is a perspective view of the upper shell holder.

Fig. 10 is a perspective view of the movable cutter head assembly.

Fig. 11 is a perspective view of the lower housing.

Fig. 12 is a perspective view of the fixed cutter disc holder.

Fig. 13 is a perspective view of the adjustment ring.

Fig. 14 is a first perspective view of the bottom chassis.

Fig. 15 is a second perspective view of the bottom chassis.

Fig. 16 is a perspective view of the grinder of the present utility model.

Fig. 17 is a perspective view of the abrasive disk and cup of fig. 16.

Fig. 18 is a perspective view of a cup.

Fig. 19 is an enlarged view of a in fig. 18.

Fig. 20 is a first perspective cross-sectional view of the grinder of the present utility model.

Fig. 21 is a second perspective cross-sectional view of the grinder of the present utility model.

Wherein:

1-upper shell, 2-positioning groove, 3-feeding groove, 4-lower shell, 5-connecting piece, 6-mounting cylinder, 7-flat part, 8-bottom shell, 9-marked convex strip, 10-scale, 11-stripe structure, 12-inner shell part, 13-transmission shaft, 14-first inner shaft sleeve, 15-second inner shaft sleeve, 16-fixed pin, 17-upper shell bracket, 18-mounting cylinder, 19-elastic element, 20-positioning piece, 21-adjusting ring, 22-supporting ring, 23-fixed cutter disc fixed seat, 24-fixed cutter disc, 25-first sealing ring, 26-second sealing ring, 27-movable cutter disc, 28-third sealing ring and 29-fourth sealing ring, 30-supporting platform, 31-limiting ring, 32-supporting block, 33-fifth sealing ring, 34-installing ring, 35-sealing connecting ring, 36-positioning hole, 37-sliding block, 38-external screw thread, 39-internal screw thread, 40-assembling hole, 41-pin hole, 42-elastic clamping piece, 43-supporting part, 44-first gear ring, 45-receiving part, 46-second gear ring, 47-first installing groove, 48-second installing groove, 49-locking lug, 50-guiding groove, 51-assembling groove, 52-host machine, 53-supporting rod, 54-cup, 55-cup body, 56-annular assembling part, 57-lock catch, 58-middle groove, 59-chassis and 60-magnet.

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description. In addition, embodiments of the present application and features of the embodiments may be combined with each other without conflict. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, and the described embodiments are merely some, rather than all, embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, are intended to fall within the scope of the present utility model.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

Example 1

Referring to fig. 1-15, the present embodiment discloses a grinding disc, which includes a movable cutter disc assembly, a fixed cutter disc assembly, a mounting shell, and a screwing adjusting assembly driving the fixed cutter disc assembly to axially move.

The fixed cutter disc assembly comprises a fixed cutter disc 24 and a fixed cutter disc fixing seat 23; the fixed cutter disc fixing seat 23 is cylindrically arranged, and the fixed cutter disc 24 is arranged in the fixed cutter disc fixing seat 23. The fixed cutter disc 24 and the fixed cutter disc fixing seat 23 of the embodiment can be integrated by placing inserts through an injection molding process.

The movable cutter head assembly comprises a movable cutter head 27 and a transmission shaft 13; the lower end of the transmission shaft 13 is fixedly connected with the movable cutter disc 27, and the upper end extends upwards; the drive shaft 13 is adapted to be coupled to an external drive to cause rotation of the impeller 27.

The movable cutter 27 is disposed in the fixed cutter 24, and the movable cutter and the fixed cutter cooperate with each other to form a grinding gap. The fixed cutter disc assembly can move along the axial direction of the fixed cutter disc assembly under the drive of the screwing adjusting assembly so as to adjust the size of the grinding gap.

The fixed cutter head assembly is arranged on the mounting shell, and a guide limiting structure which is used for preventing the fixed cutter head assembly from rotating and guiding the fixed cutter head assembly to axially move is arranged between the fixed cutter head fixing seat 23 and the mounting shell. Specifically, the guide limit structure of the present embodiment includes the guide groove 50 and the slider 37; the sliding block 37 is arranged on the outer wall of the fixed cutter disc fixing seat 23 in a protruding way, the surface of the sliding block 37 is smoothly arranged and extends along the axial direction to be in a strip shape; the guide groove 50 is arranged on the mounting shell and extends along the axial direction, and the sliding block 37 is arranged in the guide groove 50 in a matched sliding manner; further, three guiding and limiting structures are provided in the embodiment, and the guiding and limiting structures are distributed at equal intervals along the circumferential direction of the fixed cutter disc fixing seat 23.

As another embodiment, the slider 37 may be provided on the mounting case in a protruding manner, and the guide groove 50 is provided on the outer wall of the fixed blade holder 23. In addition, the quantity of direction limit structure also can set up according to the demand is nimble.

The mounting shell is arranged in a hollow way and comprises an upper outer shell 1 and an inner shell part 12; the inner shell portion 12 is smaller than the upper shell 1, the inner shell portion 12 is disposed coincident with the axis of the upper shell 1, and the inner shell portion 12 is disposed in the upper shell 1 and extends downward. The fixed cutter head assembly is arranged in the inner cavity of the inner shell part 12, and the guiding and limiting structure is arranged between the outer wall of the fixed cutter head fixing seat 23 and the inner wall of the inner shell part 12; specifically, the guide groove 50 is provided in the inner wall of the inner housing portion 12.

In order to improve the tightness between the fixed cutter disc fixing seat 23 and the inner shell part 12, coffee powder is prevented from entering an internal gap between the fixed cutter disc fixing seat 23 and the inner shell part 12 in the grinding process, and a first sealing ring 25 is arranged between the fixed cutter disc fixing seat 23 and the inner shell part 12, so that a protection structure is facilitated, a damping effect can be achieved, and noise in the grinding operation is reduced.

The hollow position of the upper shell 1 is provided with a mounting frame, and a transmission shaft 13 of the movable cutter head assembly is detachably arranged on the mounting frame. Specifically, the mounting bracket includes three connecting pieces 5 and a mounting cylinder 6, the mounting cylinder 6 is arranged on the axis of the upper housing 1, one end of the connecting piece 5 is connected with the outer wall of the mounting cylinder 6, and the other end of the connecting piece 5 is connected with the inner wall of the upper housing 1. The upper end of the transmission shaft 13 passes through the mounting cylinder 6 and then is detachably connected through a fixing pin 16.

Further, a first inner shaft sleeve 14 and a second inner shaft sleeve 15 are arranged between the transmission shaft 13 and the inner wall of the mounting cylinder 6, and the second inner shaft sleeve 15 is arranged outside the first inner shaft sleeve 14; specifically, the first inner sleeve 14 of the present embodiment is an abrasion resistant sleeve, and the second inner sleeve 15 is a metal sleeve. The transmission shaft 13 is provided with a radially extending pin hole 41, and the fixing pin 16 is inserted into the pin hole 41, and the fixing pin 16 is positioned above the mounting cylinder 6.

In order to facilitate the disassembly and assembly of the fixed pin 16 and realize the disassembly of the movable cutter head assembly, elastic clamping pieces 42 are arranged on two sides of the fixed pin 16, one end of each elastic clamping piece 42 is fixedly connected with one end of the fixed pin 16, and the other end of each elastic clamping piece 42 freely extends along the axial direction of the fixed pin 16; the elastic clamping piece 42 is provided with an arc-shaped clamping part, and the arc-shaped clamping parts of the elastic clamping pieces 42 on two sides of the fixing pin 16 form a positioning opening ring for tightening and positioning the transmission shaft 13.

The movable cutter head assembly in this embodiment can realize the disassembly of the movable cutter head 27 by operating the fixing pin 16, so that the grinding gap between the movable cutter head 27 and the fixed cutter head 24 can be completely exposed for thorough cleaning.

Further, a flat portion 7 is provided at the upper end of the transmission shaft 13, and the outer contour of the flat portion 7 is arranged in a polygonal shape. Specifically, the flat portion 7 of the present embodiment is provided in a square column shape so as to be connected with an output member of an external driving mechanism (the main unit 52), and power transmission is realized, thereby realizing automatic grinding of the grinding disc. Of course, the flat part 7 at the upper end of the transmission shaft 13 can be connected with a manual remote rod to form a manual grinder.

The top surface of the upper shell 1 is provided with a feed chute 3, the feed chute 3 is obliquely arranged, and the feed chute 3 is communicated with the hollow position of the upper shell 1. Through the setting of feed chute 3, make things convenient for the coffee beans to slide along the inclined plane of feed chute 3 and grind the clearance in, play the guide effect.

The top surface border department of going up shell 1 is equipped with a plurality of constant head tank 2, and the outside of a plurality of constant head tank 2 all is equipped with the opening. Specifically, the positioning slots 2 of the present embodiment are provided with three positioning slots, and are distributed at equal intervals on the top edge of the upper housing 1, and are used for being connected with an external driving mechanism (the host 52) in a matched manner, so that the rotation restriction on the mounting housing is realized, and the stability during grinding is improved and vibration is reduced.

The upper shell 1 is provided with a magnet 60; the magnet 60 is provided on the lower surface of the upper case 1. An upper shell support 17 is arranged below the mounting shell, and the upper shell support 17 is detachably connected with the mounting shell; the lower surface of the upper housing 1 is provided with a limit ring 31 for limiting the displacement of the magnet 60; the upper shell bracket 17 is provided with a supporting block 32, and the supporting block 32 is arranged corresponding to the magnet 60; the magnet 60 is disposed in the retainer ring 31 and supported on the support block 32. By the arrangement of the magnet 60, the whole grinding disc is fixed on the main machine 52 by utilizing magnetic force, so that the grinding disc and the main machine 52 are assembled, and the transmission shaft 13 of the movable cutter head assembly is favorably matched and connected with a power output shaft of the main machine 52.

In this embodiment, the screw adjusting component is connected with the fixed cutter disc component through a thread structure. Preferably, the thread formation comprises an external thread 38 and an internal thread 39; the external thread 38 is arranged on the outer wall of the fixed cutter disc fixing seat 23, and the internal thread 39 is arranged on the screwing adjusting assembly; the external thread 38 is located below the guiding limit structure.

Further, the screw adjusting assembly includes a screw housing and an adjusting ring 21. The adjusting ring 21 is arranged on the screwing shell; the adjusting ring 21 is sleeved on the outer side of the fixed cutter disc fixing seat 23, the external threads 38 of the thread structure are arranged on the outer wall of the fixed cutter disc fixing seat 23, and the internal threads 39 of the thread structure are arranged on the inner wall of the adjusting ring 21.

When the grinding gap is adjusted, the screwing shell is screwed to drive the adjusting ring 21 to rotate, and the fixed cutter disc assembly is driven to move up and down axially under the action of the thread structure so as to adjust the size of the grinding gap. The stepless adjustment of the grinding gap is realized by adopting the adjustment mode of mutually matched screw structures, so that the control of the coffee grinding thickness is more flexible and convenient, and the coffee grinding thickness is suitable for more different user demands.

Further, the screwing shell comprises a lower outer shell 4 and a bottom shell 8 which is arranged in a ring shape; the bottom shell 8 is detachably arranged on the inner wall of the lower shell 4 near the bottom; the adjusting ring 21 is supported on the bottom shell 8. The outer wall of the adjusting ring 21 is provided with a supporting part 43, and the supporting part 43 is arranged in a protruding way outwards along the radial direction; the bottom shell 8 is provided with an axially protruding bearing part 45; the support portion 43 is supported by the receiving portion 45. By the arrangement of the bottom shell 8, the supporting of the adjusting ring 21 is facilitated, so that the lower housing 4, the bottom shell 8 and the adjusting ring 21 form a rotary whole.

Because certain errors exist in the production and processing process of each part and after the parts are assembled, errors exist in the grinding clearance of the grinding disc before delivery, and in order to ensure the uniformity of products before delivery, fine adjustment correction before delivery is needed to be carried out on the fixed cutter disc assembly. In this embodiment, in order to correct the consistency of the polishing gap, a first gear ring 44 is provided at the bottom of the supporting portion 43, and a second gear ring 46 is provided at the top of the receiving portion 45; the first ring gear 44 and the second ring gear 46 are cooperatively connected with each other. In the assembly process, the adjusting ring 21 is driven to rotate by rotating the bottom shell 8 and utilizing the cooperation of the second gear ring 46 on the bearing part 45 and the first gear ring 44 on the supporting part 43, so that the axial position of the fixed cutter disc assembly is adjusted, the correction of the complete grinding gap is ensured, and the consistency of products is ensured; the adjustment method is convenient and quick, and is beneficial to adjusting the deviation problem of the gap between the various error guide actuating cutterhead 27 and the fixed cutterhead 24. Meanwhile, the first gear ring 44 and the second gear ring 46 are matched, certain reliability is achieved, relative sliding is not easy to occur when the screwing shell rotates normally to adjust the grinding clearance, and the accuracy and stability of normal adjustment are ensured.

Further, a sealing connecting ring 35 is arranged in the middle of the bottom shell 8; the outer wall of the stationary cutter disc assembly extends to a position corresponding to the sealing connection ring 35; a second sealing ring 26 is arranged between the sealing connection ring 35 and the outer wall of the fixed cutter disc assembly.

A third sealing ring 28 is arranged between the outer wall of the bottom shell 8 and the inner wall of the lower shell 4.

The bottom shell 8 is provided with a mounting ring 34 for connecting with a cup 54, and the mounting ring 34 extends downwards along the axial direction; the inner wall of the mounting ring 34 is provided with a mounting groove for being matched and mounted with a lock catch 57 on the cup 54; the mounting groove includes a first mounting groove 47 and a second mounting groove 48, the first mounting groove 47 extending in the axial direction, the second mounting groove 48 being perpendicular to the first mounting groove 47, and the second mounting groove 48 communicating with the first mounting groove 47. Preferably, a locking tab 49 is provided in the second mounting groove 48.

The top of the inner side of the mounting ring 34 is provided with a fourth sealing ring 29. Specifically, the top of the inner side of the mounting ring 34 is provided with an annular groove, and the fourth sealing ring 29 is arranged in the annular groove and is used for being matched with the opening of the cup 54 to achieve a sealing effect, so that coffee powder in the grinding process is prevented from falling out of the cup 54.

A support table 30 is provided in the lower case 4, and the upper case stand 17 is supported on the support table 30. Preferably, a supporting ring 22 is arranged between the lower shell 4 and the adjusting ring 21; the carrier ring 22 is located outside the inner shell portion 12, and the support stand 30 of the lower shell 4 is supported on the carrier ring 22, the carrier ring 22 being supported on top of the adjustment ring 21.

Further, an elastic positioning assembly is provided on the upper housing 1, and the elastic positioning assembly includes a positioning member 20 and an elastic element 19. The supporting table 30 is provided with a plurality of positioning holes 36, and the positioning holes 36 are arranged at equal intervals along the circumferential direction with the axis of the lower casing 4 as the center; the lower end of the positioning member 20 abuts against the positioning hole 36 under the elastic force of the elastic element 19.

The positioning member 20 of the present embodiment is a positioning rod, and a clamping portion is disposed on the positioning rod; the bottom of the upper shell 1 is provided with a downward extending assembly tube 18; the positioning rod is arranged in the assembly barrel 18; the upper shell bracket 17 is provided with an assembly hole 40, and the assembly hole 40 is arranged corresponding to the assembly barrel 18; the lower end of the positioning rod passes through the assembly hole 40 and then abuts against the positioning hole 36 of the supporting table 30. Preferably, the elastic element 19 is a spring, which is sleeved on the positioning rod. One end of the spring abuts against the top of the detent portion, and the other end of the spring abuts against the top of the fitting cartridge 18.

The embodiment is provided with a group of elastic positioning components and positioning holes 36, so as to increase the adjusting hand feeling of a user when the screwing shell is rotated, and the sliding of the positioning piece 20 and the positioning holes 36 can generate sound when the screwing shell is rotated, so that the user can conveniently judge the condition of adjusting the grinding gap. Further, in order to improve the hand feeling of the user during use, a stripe structure 11 is arranged on the lower outer circumferential surface of the lower housing 4; in addition, the upper part of the lower shell 4 is provided with a marking convex strip 9, the upper part of the upper shell 1 is provided with a scale 10, and the screwing shell can be screwed and adjusted according to the need by utilizing the indication of the marking convex strip 9 and the scale 10, so that coffee powder with corresponding thickness is obtained. Specifically, the scale 10 in the present embodiment is provided with thirty, and correspondingly, the positioning holes 36 are provided with thirty, thereby forming thirty-level thickness adjustment; of course, different thickness levels can be set according to different product requirements; in addition, the thickness of the thread structure is adjusted, so that the stepless adjusting effect is achieved, and the setting of the positioning holes 36 and the elastic positioning components can be canceled, so that the stepless adjusting effect is achieved.

As another example, the positioning member 20 may be a ball structure.

Further, an inner wall of an upper end of the lower housing 4 is provided with an assembly groove 51, and a lower end of an outer wall of the upper housing 1 is correspondingly installed in the assembly groove 51. A fifth sealing ring 33 is provided between the fitting groove 51 and the lower end of the outer wall of the upper casing 1.

Through the arrangement of the first sealing ring 25, the second sealing ring 26, the third sealing ring 28, the fourth sealing ring 29 and the fifth sealing ring 33, the protection of the internal structure among all parts of the grinding disc is realized, coffee powder is prevented from entering the internal structure, and meanwhile, the coffee powder grinding disc has a good waterproof effect, so that the whole grinding disc can be washed, and thorough cleaning is facilitated; in addition, the sealing rings are arranged at the fit clearance, so that the damping and noise reduction effects are achieved.

Example 2

Referring to fig. 16-21, the present embodiment discloses a grinder comprising the grinding pan of embodiment 1, a main body 52 and a cup 54.

The power output part of the host 52 is detachably connected with the movable cutter head assembly of the grinding disc; the housing of the main machine 52 is detachably connected to the mounting housing of the polishing disc, and specifically can be attracted by the magnet 60, although other detachable structures in the prior art can be adopted. The cup 54 is arranged below the grinding gap of the grinding disc, and the top opening of the cup 54 corresponds to the discharge hole of the grinding gap; specifically, the top opening of cup 54 mates with mounting ring 34 of bottom shell 8.

Further, the cup 54 includes a cup body 55 and an annular fitting portion 56, the annular fitting portion 56 is provided at the top of the cup body 55, the outer wall of the annular fitting portion 56 is provided with a plurality of catches 57, and the plurality of catches 57 are provided in a protruding manner. Preferably, the middle of the latch 57 is provided with a middle slot 58. Specifically, the intermediate groove 58 is provided in correspondence with the locking projection 49 to prevent the release.

In installation, the catches 57 of the annular fitting portion 56 are extended into the first mounting groove 47 of the mounting ring 34, and then the cups 54 are mounted with the abrasive disk by rotating the cups 54 such that the catches 57 rotate into the second mounting groove 48 and engage the locking projections 49 in the second mounting groove 48 through the intermediate grooves 58 in the catches 57.

Further, the grinder of the present embodiment further includes a bracket. The host 52 is mounted on a stand. The bracket comprises a chassis 59 and two oppositely arranged struts 53; one end of each of the two struts 53 is connected to the housing of the main machine 52, and the other end is connected to the chassis 59. Preferably, two struts 53 are disposed obliquely from top to bottom to both sides, respectively, and an assembly area for mounting the grinding disc and the cup 54 is formed between the two struts 53. In this embodiment, after the cup 54 is assembled with the grinding disc, the cup 54 is separated from the chassis 59. In addition, suction cups are provided at the bottom of the chassis 59 in order to improve the stability of the stand.

For a specific implementation of the host 52 in this embodiment, reference may be made to the prior art.

The present utility model is not limited to the preferred embodiments, and any modifications, equivalent variations and modifications made to the above embodiments according to the technical principles of the present utility model are within the scope of the technical proposal of the present utility model.

Claims

1. The grinding disc is characterized by comprising a movable cutter disc assembly, a fixed cutter disc assembly and a mounting shell;

the cutterhead assembly may be externally driven for rotation.

2. Abrasive disk according to claim 1, wherein the guiding and limiting structure comprises a guiding groove extending in the axial direction and a slider slidingly disposed in the guiding groove in cooperation;

3. Abrasive disk according to claim 1, wherein the guiding and limiting structure comprises a guiding groove extending in the axial direction and a slider slidingly disposed in the guiding groove in cooperation;

4. A grinding disc according to any one of claims 1-3, wherein a plurality of said guiding and limiting structures are provided, a plurality of said guiding and limiting structures being equally spaced along the circumference of said fixed cutter disc assembly.

5. A grinding disc according to any of claims 1-3, wherein the stationary cutter disc assembly comprises a stationary cutter disc and a stationary cutter disc holder; the fixed cutter disc fixing seat is in a cylindrical shape, and the fixed cutter disc is arranged in the fixed cutter disc fixing seat;

6. A grinding disc according to any of claims 1-3, wherein said mounting shell is hollow and comprises an upper outer shell and an inner shell portion; the inner shell part is smaller than the upper outer shell, the inner shell part is overlapped with the axis of the upper outer shell, and the inner shell part is arranged in the upper outer shell and extends downwards;

7. The abrasive disk of claim 6 wherein said guide limiting structure is disposed between said fixed disk assembly and said inner housing portion.

8. The abrasive disk of claim 6 wherein a first seal is disposed between said fixed disk assembly and said inner housing portion.

9. The abrasive disk of claim 6 wherein said upper housing has a mounting bracket in a hollow position, said cutterhead assembly being removably mounted on said mounting bracket.

10. The abrasive disk of claim 9 wherein said mounting bracket comprises a plurality of connectors and a mounting barrel, said mounting barrel being disposed on the axis of said upper housing, one end of a plurality of said connectors being connected to the outer wall of said mounting barrel, and the other end of a plurality of said connectors being connected to the inner wall of said upper housing.

11. The abrasive disk of claim 10 wherein said movable cutter assembly comprises a movable cutter and a drive shaft; the lower end of the transmission shaft is connected with the movable cutter head, and the upper end of the transmission shaft is detachably connected with the mounting cylinder and extends upwards after penetrating through the mounting cylinder.

12. A grinding disc according to claim 11, wherein a first inner sleeve and a second inner sleeve are provided between the drive shaft and the inner wall of the mounting cylinder, the second inner sleeve being disposed outside the first inner sleeve.

13. The abrasive disk of claim 11 wherein said drive shaft has pin holes extending radially therethrough; the pin holes are inserted with fixing pins, the fixing pins are located above the mounting cylinder, and the movable cutter head assembly can be mounted on the mounting frame.

14. The abrasive disk of claim 13, wherein elastic clamping members are disposed on both sides of the fixing pin, one end of the elastic clamping member is fixedly connected with one end of the fixing pin, and the other end of the elastic clamping member freely extends along the axial direction of the fixing pin; the elastic clamping piece is provided with an arc clamping part, and the arc clamping parts of the elastic clamping pieces on two sides of the fixing pin form a positioning opening ring for tightening and positioning the transmission shaft.

15. A grinding disc according to claim 11, wherein the upper end of the drive shaft is provided with a flat portion, the outer contour of which is polygonal.

16. The abrasive disk of claim 6 wherein the top surface of said upper housing is provided with a feed chute, said feed chute being disposed obliquely and in communication with the hollow location of said upper housing.

17. The abrasive disk of claim 6 wherein a plurality of positioning slots are provided at the top edge of said upper housing, and openings are provided outside of a plurality of said positioning slots.

18. The abrasive disk of claim 6 wherein said upper housing has magnets thereon.

19. The abrasive disk of claim 18 wherein said magnets are disposed on a lower surface of said upper housing; an upper shell support is arranged below the mounting shell and is detachably connected with the mounting shell;

a limiting ring for limiting the movement of the magnet is arranged on the lower surface of the upper shell; the upper shell support is provided with a supporting block, and the magnet is arranged in the limiting ring and is supported on the supporting block.

20. The abrasive disk of claim 19 further comprising a screw adjustment assembly that moves the fixed disk assembly axially.

21. The abrasive disk of claim 20 wherein said screw adjustment assembly is connected to said fixed disk assembly by a threaded arrangement.

22. The abrasive disk of claim 21 wherein said thread structure comprises external threads and internal threads;

23. The abrasive disk of claim 21 wherein said screw adjustment assembly comprises a screw shell and an adjustment ring;

24. The abrasive disk of claim 23 wherein said screw shell comprises a lower outer shell and a bottom shell disposed in an annular shape;

the bottom shell is detachably arranged on the inner wall of the lower shell;

the adjusting ring is supported on the bottom shell.

25. A grinding disc according to claim 24, wherein the outer wall of the adjustment ring is provided with a support portion which is arranged to bulge radially outwards;

the bottom shell is provided with an axial raised bearing part;

the support portion is supported on the receiving portion.

26. The abrasive disk of claim 25 wherein the bottom of the support portion is provided with a first gear ring; the top of the bearing part is provided with a second gear ring; the first gear ring and the second gear ring are mutually matched and connected.

27. The abrasive disk of claim 24 wherein a sealing attachment ring is provided in the middle of the bottom shell;

28. A grinding disc according to claim 24, wherein a third sealing ring is provided between the outer wall of the bottom shell and the inner wall of the lower housing.

29. A grinding disc according to claim 24, wherein the bottom shell is provided with a mounting ring for connection with an external holding container, the mounting ring extending axially downwards;

the inner wall of the mounting ring is provided with a mounting groove which is used for being matched and mounted with a lock catch of an external container;

30. A grinding disc according to claim 29, wherein locking projections are provided in the second mounting groove.

31. A grinding disc according to claim 29, wherein the inner top of the mounting ring is provided with a fourth sealing ring.

32. A grinding disc according to claim 24, wherein a support table is provided in the lower housing, the upper housing bracket being supported on the support table.

33. The abrasive disk of claim 32 wherein a backing ring is disposed between said lower housing and said adjustment ring;

34. The abrasive disk of claim 32 wherein said upper housing has an elastic positioning assembly thereon, said elastic positioning assembly comprising a positioning member and an elastic element;

35. The abrasive disk of claim 34 wherein said positioning element is a positioning rod having a detent;

36. The abrasive disk of claim 35 wherein said resilient member is a spring that is sleeved on said positioning rod;

37. A grinding disc according to claim 24, wherein the inner wall of the upper end of the lower housing is provided with an assembly groove, and the lower end of the outer wall of the upper housing is correspondingly mounted in the assembly groove.

38. A grinding disc according to claim 37, wherein a fifth sealing ring is provided between the fitting groove and the lower end of the outer wall of the upper housing.

39. A grinder comprising the grinding disc, main machine and cup of any one of claims 1-38;

40. A mill according to claim 39, wherein the cup includes a cup body and an annular fitting portion provided at a top of the cup body, an outer wall of the annular fitting portion being provided with a plurality of catches, a plurality of the catching projections being provided.

41. The finishing machine of claim 40, wherein a middle portion of the shackle is provided with a middle groove.

42. The grinding mill of claim 39 further comprising a stand;

the host is mounted on the bracket.

43. The grinder of claim 42, wherein said bracket includes a chassis and two oppositely disposed struts; one end of each supporting rod is connected with the shell of the host machine, and the other end of each supporting rod is connected with the chassis.

44. A mill according to claim 43, wherein two of said struts are inclined from top to bottom to both sides, respectively, and an assembly area for mounting a grinding disc and a cup is formed between the two struts.

45. The grinder of claim 43, wherein said cup is disposed apart from said chassis after said cup is assembled with said grinding pan.