CN111184454A

CN111184454A - Intelligent coffee bean grinder

Info

Publication number: CN111184454A
Application number: CN202010120188.9A
Authority: CN
Inventors: 施洪明
Original assignee: Wuxi Leikelaite Electrical Appliance Co ltd
Current assignee: Wuxi Leikelaite Electrical Appliance Co ltd
Priority date: 2020-02-26
Filing date: 2020-02-26
Publication date: 2020-05-22
Anticipated expiration: 2040-02-26
Also published as: CN111184454B

Abstract

The invention relates to an intelligent coffee bean grinder, which comprises a grinding bin, wherein an upper cutter disc and a lower cutter disc which are oppositely arranged at intervals are arranged in the grinding bin; a sleeve is arranged in the grinding bin below the lower tool apron, the main shaft vertically penetrates through the sleeve and is rotatably connected with the sleeve, and an adjusting mechanism is arranged perpendicular to the side wall of the grinding bin; the small motor works, the adjusting shaft is driven to rotate through belt transmission so as to rotate relative to the grinding bin thread, and the end of the adjusting shaft radially extends or retracts relative to the sleeve; when the cutter is retracted, the lower cutter moves downwards along with the sleeve due to gravity, so that the distance between the two cutters is increased; according to the invention, the clearance of the cutter head is automatically adjusted in a programmable manner, and the intelligent bean grinding is realized by matching with the feedback of the electronic scale, so that the bean grinding machine is stable in operation and high in precision, and is suitable for different bean varieties.

Description

Intelligent coffee bean grinder

Technical Field

The invention relates to the technical field of bean grinding machines, in particular to an intelligent coffee bean grinding machine.

Background

In the coffee bean grinder in the prior art, because the gap of the internal grinding mechanism is a fixed size, the defect of fixed thickness generally exists in the grinding process, namely, the same machine can only grind coffee powder with the same thickness, the grinding thickness is difficult to adjust according to personal preference or bean varieties, and the bean grinding effect is single; in addition, after a period of time, the grinding mechanism will wear to enlarge the gap, and the ground coffee powder particles will be relatively enlarged, greatly affecting the quality.

Present area interval regulatory function's bean grinder, for pure mechanical structure, adjust grinding clearance in order to adjust out the powder thickness through manual, this kind of regulation is the segmentation regulation, can only carry out rough regulation according to user's memory and feel, and the precision of regulation is low, causes the coffee that grinds out and the variety that actual hope reached to have some differences, and the user uses and experiences and feels not good.

Disclosure of Invention

The applicant provides an intelligent coffee bean grinder rational in infrastructure to shortcoming among the above-mentioned prior art to the above-mentioned production technology to realize the automatic adjustment in blade disc clearance, realize grinding the intellectuality of beans thickness adjustment, adjust the precision height, stability is good, has promoted user's use greatly and has experienced.

The technical scheme adopted by the invention is as follows:

an intelligent coffee bean grinder comprises a grinding bin, wherein an upper cutter disc and a lower cutter disc which are oppositely arranged at intervals are installed in the grinding bin, the lower cutter disc is fixedly installed in a lower cutter holder, a main shaft is fixedly installed in the middle of the lower cutter holder, and the main shaft is driven to rotate by a large motor; the grinding bin below the lower tool apron is internally provided with a sleeve, the main shaft penetrates through the sleeve from top to bottom and is rotatably connected with the sleeve, the side wall of the grinding bin perpendicular to the main shaft is provided with an adjusting mechanism, an adjusting shaft in the adjusting mechanism penetrates through the side wall of the grinding bin, and the end of the adjusting shaft is matched with the outer side wall of the sleeve.

As a further improvement of the above technical solution:

the structure of the adjusting mechanism is as follows: the grinding device comprises an adjusting shaft vertically penetrating through the side wall of the grinding bin, wherein one end of the adjusting shaft is matched with the outer wall of a sleeve, a large belt wheel is sleeved at the other end of the adjusting shaft, and the large belt wheel is connected with a small belt wheel through a belt; the output end of the small motor is fixedly installed with the small belt pulley.

The adjusting shaft is in threaded connection with the grinding bin, and the adjusting shaft is in conical surface fit with the sleeve.

The shaft end of the small motor is provided with an encoder, and the encoder and the small motor are both connected to the control board; the control panel is provided with a knob, and the knob is electrically connected with the control panel; and a control command for the encoder and the small motor is input through a knob.

The structure of the sleeve is as follows: the bearing comprises a barrel body with a barrel-shaped structure, wherein the middle part of the barrel body is provided with a through hole for installing a main shaft, two ends of the through hole are provided with counter bores, a bearing is installed in each counter bore, and the inner ring of the bearing is fixedly connected with the main shaft; the outer wall surface of the cylinder body is provided with a taper hole matched with the adjusting shaft.

A powder bin is arranged on the side edge of the grinding bin in a penetrating manner, the upper opening of the powder bin faces the interval between the upper cutter disc and the lower cutter disc, and the lower opening of the powder bin faces downwards; an electronic scale is arranged right below the lower opening of the powder bin, a powder receiving plate is mounted on the electronic scale, and a powder cup with an upward opening is placed on the powder receiving plate.

The electronic scale is electrically connected with the control panel and used for weighing the weight of the bean flour in the powder cup and feeding the weight back to the control panel.

The bottom end of the main shaft is sleeved with a large gear, a small gear is meshed with the large gear and is fixedly arranged at the output end of a large motor.

The support is clamped with a shell; the grinding bin and the adjusting mechanism are both contained in the shell, a horizontal supporting plate is installed in the shell, the grinding bin penetrates through the supporting plate from top to bottom, and the grinding bin and the supporting plate are fixedly installed.

An upper cutter holder is mounted at the top of the grinding bin, and the bottom of the upper cutter holder is fixedly mounted with an upper cutter head; go up the blade holder top and install the sealing washer, the outer circumference cover of sealing washer is equipped with the support ring, support ring bottom and shell contact, the storehouse seat is installed at the support ring top, install the beans storehouse on the storehouse seat, the beans storehouse link up with grinding the storehouse.

The invention has the following beneficial effects:

the grinding bin is compact and reasonable in structure and convenient to operate, the small motor works, the adjusting shaft is driven to rotate through belt transmission to rotate relative to the grinding bin threads, and the end of the adjusting shaft radially extends or retracts relative to the sleeve; when stretching in, the extrusion sleeve goes upward, and the sleeve drives blade holder, lower cutter head down and goes upward, realizes that the transfer of interval between two cutter heads is little, and during the withdrawal, lower cutter head is down because of gravity along with the sleeve, realizes the transfer of interval between two cutter heads greatly to realized the automatic adjustment in cutter head clearance, the regulation precision is high, and stability is good, and then is applicable to the grinding demand of different individual or beans, has promoted user experience greatly.

The invention also comprises the following advantages:

the rotary knob is rotated, the control panel receives the adjusting signal and drives the small motor to work, the encoder effectively controls the rotation angle of the small motor, and the small motor drives the adjusting shaft to rotate through belt transmission, so that the intelligent operation of adjusting the gap is realized;

in the grinding process, the electronic scale is used for weighing the powder in real time and feeding the weight back to the controller;

the large motor works and drives the main shaft to rotate through the meshing transmission of the small gear and the large gear, so that the lower cutter base drives the lower cutter head to rotate, the lower cutter head rotates relative to the upper cutter head, beans in the grinding bin are ground, and ground powder is extruded to a gap between the upper cutter base and the lower cutter base and falls into the powder cup through the powder bin to finish the grinding of the beans.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the present invention (from another perspective, the housing is omitted).

FIG. 3 is a schematic structural diagram of the adjusting mechanism of the present invention (omitting the grinding chamber).

Fig. 4 is an exploded view of fig. 3 (large motor and small gear omitted).

Fig. 5 is a cross-sectional view of an adjustment mechanism of the present invention.

Wherein: 1. a housing; 2. a bean storehouse; 3. a bin seat; 4. a support ring; 5. a control panel; 6. a button; 7. a knob; 8. a powder cup; 9. a powder receiving disc; 10. an electronic scale; 11. a grinding bin; 12. a support plate; 13. a large belt pulley; 14. a belt; 15. a small belt pulley; 16. a small motor; 17. a large motor; 18. a support; 19. an encoder; 20. a powder bin; 21. a control panel; 22. an upper tool apron; 231. feeding a cutter head; 232. a cutter head is arranged; 24. a lower tool apron; 25. an adjustment shaft; 26. a pinion gear; 27. a bull gear; 28. a seal ring; 29. a bearing; 30. a main shaft; 31. a sleeve; 310. a barrel; 311. a counter bore; 312. a through hole; 313. and (4) taper holes.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

As shown in fig. 1 and fig. 2, the intelligent coffee bean grinder of the present embodiment includes a grinding bin 11, an upper cutter 231 and a lower cutter 232 are installed in the grinding bin 11 at intervals, the lower cutter 232 is fixedly installed in a lower cutter holder 24, a main shaft 30 is fixedly installed in the middle of the lower cutter holder 24, and the main shaft 30 is driven by a large motor 17 to rotate; the grinding bin 11 below the lower tool apron 24 is internally provided with a sleeve 31, the main shaft 30 penetrates through the sleeve 31 from top to bottom and is rotatably connected with the sleeve 31, the side wall perpendicular to the grinding bin 11 is provided with an adjusting mechanism, an adjusting shaft 25 in the adjusting mechanism penetrates through the side wall of the grinding bin 11, and the end head of the adjusting shaft 25 is matched with the outer side wall of the sleeve 31.

As shown in fig. 3, 4 and 5, the adjusting mechanism has the following structure: the grinding device comprises an adjusting shaft 25 vertically penetrating through the side wall of a grinding bin 11, wherein one end of the adjusting shaft 25 is matched with the outer wall of a sleeve 31, a large belt wheel 13 is sleeved at the other end of the adjusting shaft 25, and the large belt wheel 13 is connected with a small belt wheel 15 through a belt 14; the device also comprises a small motor 16, and the output end of the small motor 16 is fixedly arranged with the small belt pulley 15.

The adjusting shaft 25 is in threaded connection with the grinding bin 11, and the adjusting shaft 25 is in conical surface fit with the sleeve 31; the adjusting shaft 25 is driven by the small motor 16 to rotate, so that the adjusting shaft 25 is screwed relatively to the grinding bin 11 and is screwed in or out relatively, and the conical surface at the end of the adjusting shaft 25 extends or retracts radially relative to the sleeve 31; when the conical surface extends radially, the sleeve 31 is extruded and supported to move upwards, and when the conical surface retracts radially, the sleeve 31 moves downwards under the self gravity; in this process, the displacement in the radial direction is absorbed by the movement of the large pulley 13 with respect to the width direction of the belt 14.

The shaft end of the small motor 16 is provided with an encoder 19, the encoder 19 and the small motor 16 are both connected to the control board 21, and the encoder 19 receives the instruction of the control board 21, so that the rotation angle of the small motor 16 is effectively controlled and monitored, and the accuracy of adjusting the gap between the upper cutter disc 231 and the lower cutter disc 232 is promoted and ensured; the control panel 5 is further included, a knob 7 is arranged on the control panel 5, and the knob 7 is electrically connected with the control panel 21; control commands for the encoder 19 and the small motor 16 are input through the knob 7.

A plurality of buttons 6 are also arranged on the control panel 5 above the knob 7, and the buttons 6 are used for selecting the functions of the bean grinder, such as operation mode, weighing and the like; the middle part of the knob 7 is also provided with a button for the switch of the bean grinder.

The sleeve 31 has the structure: the cylindrical shell 310 comprises a cylindrical structure, wherein the middle part of the cylindrical shell 310 is provided with a through hole 312 for installing a main shaft 30, two ends of the through hole 312 are provided with counter bores 311, a bearing 29 is installed in the counter bores 311, the inner ring of the bearing 29 is fixedly connected with the main shaft 30, and the bearing 29 realizes the rotation of the main shaft 30 relative to a sleeve 31; the outer wall of the cylinder 310 is provided with a taper hole 313 matched with the end of the adjusting shaft 25.

The powder bin 20 is installed on the side of the grinding bin 11 in a penetrating way, the upper opening of the powder bin 20 is just opposite to the interval between the upper cutter disc 231 and the lower cutter disc 232, and the lower opening of the powder bin 20 faces downwards; the ground powder is extruded into the powder bin 20 through the interval between the upper cutter disc 231 and the lower cutter disc 232 in the grinding process and then falls; an electronic scale 10 is arranged right below the lower opening of the powder bin 20, a powder receiving tray 9 is mounted on the electronic scale 10, a powder cup 8 with an upward opening is placed on the powder receiving tray 9, and the powder cup 8 is used for containing powder falling from the powder bin 20.

The electronic scale 10 is electrically connected with the control panel 21, and the electronic scale 10 is used for weighing the weight of the bean flour in the powder cup 8 and feeding the weight back to the control panel 21.

The bottom end of the main shaft 30 is sleeved with a large gear 27, a small gear 26 is meshed with the large gear 27, and the small gear 26 is fixedly arranged at the output end of the large motor 17.

The small motor 16 is a 5V direct current motor, and the large motor 17 is a 220V alternating current motor.

The shell is characterized by further comprising a support 18, wherein the shell 1 is clamped on the support 18; grinding bin 11 and adjustment mechanism all hold in shell 1, are installed horizontal backup pad 12 in the shell 1, and grinding bin 11 runs through backup pad 12 from top to bottom, and grinding bin 11 is adorned with backup pad 12 admittedly.

The top of the grinding bin 11 is provided with an upper tool apron 22, and the bottom of the upper tool apron 22 is fixedly arranged with an upper tool pan 231; go up blade holder 22 top and install sealing washer 28, the outer circumference cover of sealing washer 28 is equipped with support ring 4, and support ring 4 bottom and shell 1 contact are installed at the top, and storehouse seat 3 is installed at 4 tops of support ring, installs beans storehouse 2 on the storehouse seat 3, and beans storehouse 2 is link up with grinding storehouse 11, places beans through beans storehouse 2.

The working principle of the invention is as follows:

the knob 7 is rotated, the control panel 21 receives an adjusting signal to drive the small motor 16 to work, the encoder 19 controls the rotation angle of the small motor 16, the small motor 16 drives the adjusting shaft 25 to rotate through the transmission of the belt 14 between the small belt pulley 15 and the large belt pulley 13, so that the adjusting shaft 25 rotates relative to the grinding bin 11 through threads, and the end of the adjusting shaft 25 radially extends or retracts relative to the sleeve 31; when the cutter is stretched in, the extrusion sleeve 31 moves upwards, the sleeve 31 drives the lower cutter holder 24 and the lower cutter disc 232 to move upwards, so that the distance between the two cutter discs is adjusted to be small, and when the cutter is retracted, the lower cutter disc 232 moves downwards along with the sleeve 31 due to gravity, so that the distance between the two cutter discs is adjusted to be large;

then, the large motor 17 works, and through the meshing transmission of the small gear 26 and the large gear 27, the main shaft 30 is driven to rotate, so that the lower cutter base 24 drives the lower cutter head 232 to rotate, the lower cutter head 232 rotates relative to the upper cutter head 231, so that the beans in the grinding bin 11 are ground, the ground powder is extruded to a gap between the upper cutter base and the lower cutter base and falls into the powder cup 8 through the powder bin 20, and the grinding of the beans is completed.

The bean grinding machine is simple, compact and reasonable in structure, high in adjusting precision, good in stability and good in user experience, and intellectualization and automation of bean grinding thickness adjustment are achieved.

The above description is intended to be illustrative and not restrictive, and the scope of the invention is defined by the appended claims, which may be modified in any manner within the scope of the invention.

Claims

1. The utility model provides an intelligent coffee grinds beans machine which characterized in that: the grinding device comprises a grinding bin (11), wherein an upper cutter head (231) and a lower cutter head (232) which are arranged at intervals are installed in the grinding bin (11), the lower cutter head (232) is fixedly installed in a lower cutter seat (24), a main shaft (30) is fixedly installed in the middle of the lower cutter seat (24), and the main shaft (30) is driven to rotate by a large motor (17); install sleeve (31) in grinding storehouse (11) that lie in lower blade holder (24) below, main shaft (30) run through sleeve (31) from top to bottom and both rotate and connect, and adjustment mechanism is installed to the lateral wall in perpendicular to grinding storehouse (11), adjustment shaft (25) among the adjustment mechanism run through the lateral wall in grinding storehouse (11), the end and sleeve (31) lateral wall cooperation of adjustment shaft (25).

2. An intelligent coffee bean grinder as claimed in claim 1, wherein: the structure of the adjusting mechanism is as follows: the grinding device comprises an adjusting shaft (25) vertically penetrating through the side wall of a grinding bin (11), wherein one end of the adjusting shaft (25) is matched with the outer wall of a sleeve (31), a large belt wheel (13) is sleeved at the other end of the adjusting shaft (25), and the large belt wheel (13) is connected with a small belt wheel (15) through a belt (14); the device also comprises a small motor (16), and the output end of the small motor (16) is fixedly installed with the small belt wheel (15).

3. An intelligent coffee bean grinder as claimed in claim 1 or 2, characterized in that: the adjusting shaft (25) is in threaded connection with the grinding bin (11), and the adjusting shaft (25) is in conical surface fit with the sleeve (31).

4. An intelligent coffee bean grinder as claimed in claim 2, wherein: an encoder (19) is installed at the shaft end of the small motor (16), and the encoder (19) and the small motor (16) are both connected to a control board (21); the control panel (5) is further provided with a knob (7), and the knob (7) is electrically connected with the control panel (21); the control commands of the encoder (19) and the small motor (16) are input through the knob (7).

5. An intelligent coffee bean grinder as claimed in claim 1, wherein: the sleeve (31) has the structure that: the bearing comprises a barrel body (310) with a cylindrical structure, wherein a through hole (312) for mounting a main shaft (30) is formed in the middle of the barrel body (310), counterbores (311) are formed in two ends of the through hole (312), a bearing (29) is mounted in each counterbore (311), and the inner ring of each bearing (29) is fixedly connected with the main shaft (30); the outer wall surface of the cylinder body (310) is provided with a taper hole (313) matched with the adjusting shaft (25).

6. An intelligent coffee bean grinder as claimed in claim 1, wherein: the powder bin (20) is installed on the side edge of the grinding bin (11) in a penetrating mode, the upper opening of the powder bin (20) faces the interval between the upper cutter disc (231) and the lower cutter disc (232), and the lower opening of the powder bin (20) faces downwards; an electronic scale (10) is arranged right below the lower opening of the powder bin (20), a powder receiving tray (9) is mounted on the electronic scale (10), and a powder cup (8) with an upward opening is placed on the powder receiving tray (9).

7. An intelligent coffee bean grinder as claimed in claim 6, wherein: the electronic scale (10) is electrically connected with the control panel (21), and the electronic scale (10) is used for weighing the weight of the soybean powder in the powder cup (8) and feeding the weight back to the control panel (21).

8. An intelligent coffee bean grinder as claimed in claim 1, wherein: the bottom end of the main shaft (30) is sleeved with a large gear (27), a small gear (26) is meshed with the large gear (27), and the small gear (26) is fixedly arranged at the output end of the large motor (17).

9. An intelligent coffee bean grinder as claimed in claim 1, wherein: the device also comprises a support (18), wherein the shell (1) is clamped on the support (18); grind storehouse (11) and adjustment mechanism and all hold in shell (1), install horizontally backup pad (12) in shell (1), grind storehouse (11) and run through backup pad (12) from top to bottom, grind storehouse (11) and backup pad (12) and adorn admittedly.

10. An intelligent coffee bean grinder as claimed in claim 9, wherein: an upper tool apron (22) is installed at the top of the grinding bin (11), and the bottom of the upper tool apron (22) is fixedly installed with an upper tool pan (231); go up blade holder (22) top and install sealing washer (28), the outer circumference cover of sealing washer (28) is equipped with support ring (4), support ring (4) bottom and shell (1) contact, support ring (4) top are installed storehouse seat (3), install beans storehouse (2) on the storehouse seat (3), beans storehouse (2) link up with grinding storehouse (11).