CN116350072A - Automatic calibration grinding method and equipment - Google Patents

Automatic calibration grinding method and equipment Download PDF

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Publication number
CN116350072A
CN116350072A CN202310100955.3A CN202310100955A CN116350072A CN 116350072 A CN116350072 A CN 116350072A CN 202310100955 A CN202310100955 A CN 202310100955A CN 116350072 A CN116350072 A CN 116350072A
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China
Prior art keywords
grinding
calibrating
pressure value
threshold range
calibrating device
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CN202310100955.3A
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Chinese (zh)
Inventor
林秋宏
张华林
杨序贵
吴道玉
田志峰
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Guangzhou Jetinno Intelligent Equipment Co ltd
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Guangzhou Jetinno Intelligent Equipment Co ltd
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Priority to CN202310100955.3A priority Critical patent/CN116350072A/en
Publication of CN116350072A publication Critical patent/CN116350072A/en
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/44—Parts or details or accessories of beverage-making apparatus
    • A47J31/52—Alarm-clock-controlled mechanisms for coffee- or tea-making apparatus ; Timers for coffee- or tea-making apparatus; Electronic control devices for coffee- or tea-making apparatus
    • A47J31/525—Alarm-clock-controlled mechanisms for coffee- or tea-making apparatus ; Timers for coffee- or tea-making apparatus; Electronic control devices for coffee- or tea-making apparatus the electronic control being based on monitoring of specific process parameters
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/42—Beverage-making apparatus with incorporated grinding or roasting means for coffee
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/44—Parts or details or accessories of beverage-making apparatus
    • A47J31/46—Dispensing spouts, pumps, drain valves or like liquid transporting devices
    • A47J31/468—Pumping means
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J42/00—Coffee mills; Spice mills
    • A47J42/22—Coffee mills; Spice mills having pulverising beaters or rotary knives
    • A47J42/26—Coffee mills; Spice mills having pulverising beaters or rotary knives mechanically driven
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Apparatus For Making Beverages (AREA)

Abstract

The invention provides an automatic calibration grinding method and equipment, which belong to the technical field of coffee grinding, and set a pressure threshold range; acquiring an actual pressure value in real time in a waterway, and comparing the actual pressure value with a pressure threshold range; when the actual pressure value exceeds the pressure threshold range, the adjustment parameters are calculated, the calibrating device drives and adjusts the cutter disc clearance in the grinding device, so that the powder discharged by the grinding device is thickened or thinned, and the calibrating device stops moving until the actual pressure value is within the pressure threshold range. According to the invention, no manual maintenance is needed, the beverage quality is ensured, and the operation and maintenance cost is reduced.

Description

Automatic calibration grinding method and equipment
Technical Field
The invention belongs to the technical field of coffee grinding, and particularly relates to an automatic calibration grinding method and equipment.
Background
With the deep popularization of automatic vending and unmanned vending equipment and the improvement of the requirements on the quality of drinks, how to reduce the maintenance frequency and the operation and maintenance cost and improve the quality of the drinks at the same time becomes the main requirement of operators. Grinding apparatus in vending machines require periodic calibration of the mill fineness. At present, through manual regular field maintenance or regular remote control, real-time automatic calibration cannot be realized, the quality and consistency of sold drinks are affected, and meanwhile, the maintenance cost is increased. Therefore, the automatic calibration scheme of the grinding device is an indispensable technology.
The chinese patent with application number CN202010168601.9 provides a flow-based grinding adjustment device, a coffee machine and a flow adjustment method, the flow-based grinding adjustment device includes: the grinding unit is provided with a particle size adjusting mechanism, and the particle size adjusting mechanism is used for adjusting the thickness of the ground coffee powder; a flow sensor, which is communicated with the coffee liquid and is used for detecting the flow data of the outflow coffee liquid; the control unit is electrically connected with the flow sensor, the electromagnetic valve and the particle size adjusting mechanism, and is used for opening and closing the electromagnetic valve in a preset time period, collecting flow data of coffee liquid detected by the flow sensor and controlling the particle size adjusting mechanism to adjust the thickness of the coffee powder. The invention can accurately obtain the objective difference between the current coffee liquid and the preset flow, thereby accurately controlling and adjusting the thickness of the coffee powder. Compared with subjective experience, the flow rate adjustment method has more accurate and uniform flow rate adjustment.
The Chinese patent with the application number of CN201210451496.5 provides a grinding device for a coffee machine, which comprises a driving motor, a coffee powder propeller, a bean grinding inner knife and a bean grinding outer knife assembly, wherein the coffee powder propeller is arranged on an output shaft of the driving motor, the bean grinding inner knife is arranged on the coffee powder propeller, the bean grinding outer knife assembly is arranged at the upper end of the bean grinding inner knife, and a gap is arranged between the bean grinding outer knife assembly and the bean grinding inner knife; the bean grinding outer cutter assembly comprises a bean grinding outer cutter, an outer cutter fixing seat and an adjusting device for adjusting a gap between the bean grinding outer cutter and the bean grinding inner cutter, wherein the bean grinding outer cutter is arranged in the outer cutter fixing seat, and the adjusting device is arranged at the upper end of the outer cutter fixing seat. The beneficial effects of adopting this technical scheme are: the physical actual value of the gap between the inner knife and the outer knife can be accurately controlled through the adjusting device, so that the size of coffee powder particles is controlled, the thickness of powder used by each cup of coffee is consistent, and the quality of brewed coffee is ensured.
The above devices are all used for controlling the particle size of coffee powder, but the degree of association of particle control by measuring the flow rate is low and the control accuracy is poor, so that it is necessary to provide an automatic calibration polishing method and device with high automation degree and high control accuracy.
Disclosure of Invention
Based on the above problems, it is an object of the present invention to provide an automatic calibration polishing method and apparatus for the above problems.
In order to achieve the above purpose, the present invention provides the following technical solutions:
an automatically calibrated grinding method, comprising the steps of:
setting a pressure threshold range; acquiring an actual pressure value in real time in a waterway, and comparing the actual pressure value with a pressure threshold range; when the actual pressure value exceeds the pressure threshold range, the adjustment parameters are calculated, the calibrating device drives and adjusts the cutter disc clearance in the grinding device, so that the powder discharged by the grinding device is thickened or thinned, and the calibrating device stops moving until the actual pressure value is within the pressure threshold range.
Preferably, the calibrating device changes the cutter gap through gear transmission;
the calibration device is provided with a lowest limit position and a highest limit position;
when the calibrating device is positioned at the lowest limit position, the clearance of the cutter disc is minimum, and powder particles are minimum;
when the calibrating device is positioned at the highest limit position, the clearance of the cutter head is maximum, and powder particles are maximum.
Preferably, when the calibrating device is positioned at the lowest limit position, the particle size of the powder particles at the moment is recorded as Mmin, the water path pressure value is Ymax,
the relation between the actual pressure value and the adjustment angle of the calibration device is J= delta alpha/(Ymax-Y), wherein delta alpha is the adjustment angle of the calibration device.
Preferably, the pressure threshold range is set to [ Y ] 1 ,Y 2 ]The actual pressure value acquired in real time in the waterway is y, and when y is out of the pressure threshold range, the adjusting angle of the calibrating device is as follows
Figure BDA0004073175920000021
An automatically calibrated grinding apparatus for grinding using an automatically calibrated grinding method as defined in any one of the preceding claims; comprises a control unit, a grinding device and a calibration device which are connected with each other in a communication way; an adjusting cutter disc is arranged in the grinding device and is connected with the calibrating device in a gear transmission mode; the control unit is used for receiving the actual pressure value from the pressure sensor, calculating the adjustment angle of the calibration device and controlling the calibration device to perform angle adjustment.
Preferably, a driving motor is arranged in the calibrating device, and the driving motor adjusts the clearance of the adjusting cutter head through a driving gear structure.
Preferably, the water pump and the brewing device are also included, and the water pump is used for providing a water source and water pressure for the waterway.
Preferably, the pressure sensor is located in the waterway between the water pump and the brewing device.
Preferably, the brewing device comprises a powder residue filter screen.
Preferably, the control unit is powered by a power supply module.
Compared with the prior art, the invention has the following advantages:
the invention provides an automatic calibration grinding method and equipment, which are used for collecting signals of a water path pressure sensor in the drink manufacturing process in real time, comparing the signals with a preset threshold value, calculating an adjustment parameter by software when a sampling value of the sensor exceeds the threshold value range, and sending a control signal to drive a motor of a calibration device to accurately adjust a cutter disc of the grinding device, so that powder discharged by the grinding device is thickened or thinned, and the thickness of the powder is always kept within a set range, thereby realizing the purpose of automatically adjusting the thickness of powder particles. Because the pressure value is inversely related to the powder particle size, the powder particle size is characterized by pressure detection, the powder particle size is directly controlled by changing the cutter head clearance, the association degree is high, and the automation degree is high.
Drawings
FIG. 1 is a schematic diagram of an automatic calibration polishing apparatus according to the present invention;
FIG. 2 is a schematic diagram of a gear drive of an automatically calibrated lapping apparatus of the present invention;
in FIG. 3, (a) is a schematic view of a brewing chamber of an automatically calibrated grinding apparatus of the present invention, and (b) is a schematic view of a grounds screen in the brewing chamber;
FIG. 4 is a schematic diagram of a modular connection of an automatically calibrated polishing apparatus according to the present invention;
FIG. 5 is a schematic flow chart of a method for automatically calibrating a polishing apparatus according to the present invention;
reference numerals:
1-control unit, 2-calibration device, 3-grinding device, 4-brewing device, 5-sensor, 6-water pump, 7-water pipe,
8-brewing chamber, 9-powder residue filter screen, 10-calibration gear, 11-cutterhead gear.
Detailed Description
In order to make the purpose and technical solution of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in connection with the embodiments of the present invention.
In the description of the present application, it should be understood that the terms "orientation" or "positional relationship" are used merely for convenience of description and to simplify the description of the present application, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the present application.
As shown in fig. 1-4, the present invention provides an automatic calibration polishing method and apparatus.
The grinding device comprises a control unit 1, a grinding device 3, a calibrating device 2, a water pump 6 and a brewing device 4 which are in communication with each other, wherein the grinding device 3, the water pump 6 and the brewing device 4 are communicated with each other through a water pipe 7. The water pump 6 provides water source and water pressure for the whole grinding device, when the beverage is made, powder falls into the brewing cavity 8 of the brewing device 4 from the grinding device 3, meanwhile, the water pump supplies water to the brewing cavity 8, the powder residue filter screen 9 is arranged in the brewing cavity 8, pressure is formed in the brewing cavity and causes resistance to water flow, the pressure value is inversely proportional to the powder particle size, and similarly, the powder particle size is directly proportional to the flow velocity, namely, the finer the powder particle is, the larger the water path pressure from the brewing cavity 8 to the rear end is, and the flow velocity is slower; conversely, the smaller the pressure, the greater the flow rate. By combining the proportional relation with a software algorithm, the powder granularity required by different drinks or beans can be prepared,
the grinding device 3 is internally provided with an adjusting cutter disc which can grind large-particle materials such as beans into powder with different thickness, the adjusting cutter disc is connected with the calibrating device 2 in a gear transmission mode, the gear of the calibrating device 2 drives the gear of the grinding device 3 to rotate clockwise or anticlockwise, and the gap between the gears 11 of the cutter disc is changed, so that the thickness of powder particles is further changed. The calibrating device 2 is internally provided with a driving motor, the driving motor adjusts the clearance of the adjusting cutter disc through a driving gear structure, wherein the calibrating device 2 specifically drives a calibrating gear 10 through the driving motor, the calibrating gear 10 is meshed with a cutter disc gear 11, the cutter disc gear 11 rotates along with the rotation of the calibrating gear 10, the cutter disc gear 11 is connected with a cutter disc above, the cutter disc is formed into a disc-shaped structure by a plurality of arc-shaped blades, a certain clearance exists between the blades, the rotation of the cutter disc gear 11 can change the clearance between the blades, and then the size of ground powder particles is adjusted. A threshold is set which may be a single fixed value or a range of values. When the system works, the control unit 1 collects the feedback signal of the waterway sensor in the beverage making process in real time and compares the feedback signal with a preset threshold value, when the sampling value of the sensor exceeds the threshold value range, software calculates an adjustment parameter, and sends a control signal to drive the motor of the calibrating device 2 to accurately adjust the cutter disc gear 11 of the grinding device, so that the grinding device can thicken or thin powder, and the thickness of the powder is always kept within a set range, thereby realizing the purpose of automatically adjusting the thickness of the particles of the grinding powder.
A pressure sensor is arranged in the waterway between the water pump 6 and the brewing device 4, wherein the control unit 1 is used for receiving the actual pressure value from the pressure sensor, calculating the adjustment angle of the calibration device and controlling the calibration device 2 to perform angle adjustment. Wherein the pressure sensor is located in the water path between the water pump 6 and the water outlet of the brewing device 4.
With the grinding device, the invention also provides an automatic calibration grinding method, as shown in fig. 5, comprising the following specific steps:
setting a pressure threshold range; acquiring an actual pressure value in real time in a waterway, and comparing the actual pressure value with a pressure threshold range; when the actual pressure value exceeds the pressure threshold range, the adjustment parameters are calculated, the calibration device 2 drives and adjusts the cutter head clearance in the grinding device 3, so that the powder discharged by the grinding device 3 is thickened or thinned, and the calibration device 2 stops moving until the actual pressure value is within the pressure threshold range. The calibrating device 2 changes the clearance of the cutter head through gear transmission; the calibration device 2 is provided with a lowest limit position and a highest limit position; when the calibrating device 2 is positioned at the lowest limit position, the clearance of the cutter head is minimum, and powder particles are minimum; when the calibrating device 2 is positioned at the highest limit position, the clearance of the cutter head is maximum, and powder particles are maximum. When the calibrating device 2 is located at the lowest limit position, the particle size of the powder particles at the moment is recorded as Mmin, the water path pressure value is Ymax, the relation between the actual pressure value and the adjusting angle of the calibrating device is j= delta alpha/(Ymax-Y), wherein delta alpha is the adjusting angle of the calibrating device, and J is the adjusting angle change of the calibrating device under the unit change of the pressure value.
Setting the pressure threshold range as [ Y ] 1 ,Y 2 ]The real pressure value acquired in real time in the waterway is y, when y is out of the pressure threshold range, thenThe adjusting angle of the calibrating device is
Figure BDA0004073175920000051
According to the method, the feedback signal of the sensor is sampled, the automatic calibration of the grinding device is realized by combining a software algorithm, the manual maintenance is not needed, the accuracy and the efficiency are improved, the quality of the beverage is ensured, and the operation and maintenance cost is reduced.
The foregoing is a description of only some of the embodiments of this invention and is not intended to limit the scope of the claims. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the spirit of the invention, and that these obvious alternatives fall within the scope of the invention.

Claims (10)

1. An automatic calibration grinding method is characterized in that:
the method comprises the following specific steps: setting a pressure threshold range;
acquiring an actual pressure value in real time in a waterway, and comparing the actual pressure value with a pressure threshold range;
when the actual pressure value exceeds the pressure threshold range, the adjustment parameters are calculated, the calibrating device drives and adjusts the cutter disc clearance in the grinding device, so that the powder discharged by the grinding device is thickened or thinned, and the calibrating device stops moving until the actual pressure value is within the pressure threshold range.
2. A self-calibrating grinding method according to claim 1, wherein:
the calibrating device changes the clearance of the cutter head through gear transmission;
the calibration device is provided with a lowest limit position and a highest limit position;
when the calibrating device is positioned at the lowest limit position, the clearance of the cutter disc is minimum, and powder particles are minimum;
when the calibrating device is positioned at the highest limit position, the clearance of the cutter head is maximum, and powder particles are maximum.
3. A self-calibrating grinding method according to claim 2, wherein:
when the calibrating device is positioned at the lowest limit position, the particle size of the powder particles at the moment is recorded as Mmin, the water path pressure value is Ymax,
the relation between the actual pressure value and the adjustment angle of the calibration device is J= delta alpha/(Ymax-Y),
wherein delta alpha is the adjustment angle of the calibrating device, and J is the adjustment angle variation of the calibrating device under the unit variation of the pressure value.
4. A self-calibrating grinding method according to claim 3, wherein:
setting the pressure threshold range as [ Y ] 1 ,Y 2 ]The actual pressure value acquired in real time in the waterway is y, and when y is out of the pressure threshold range, the adjusting angle of the calibrating device is as follows
Figure FDA0004073175900000011
5. An automatically calibrated grinding apparatus, characterized by: grinding using an automatically calibrated grinding method according to any one of claims 1-4;
comprises a control unit, a grinding device and a calibration device which are connected with each other in a communication way;
an adjusting cutter disc is arranged in the grinding device and is connected with the calibrating device in a gear transmission mode;
the control unit is used for receiving the actual pressure value from the pressure sensor, calculating the adjustment angle of the calibration device and controlling the calibration device to perform angle adjustment.
6. An automatically calibrated grinding apparatus according to claim 5, wherein: and a driving motor is arranged in the calibrating device, and the driving motor adjusts the gap of the adjusting cutter head through a driving gear structure.
7. An automatically calibrated grinding apparatus according to claim 5, wherein: the water pump is used for providing water source and water pressure for the waterway.
8. An automatically calibrated grinding apparatus according to claim 7, wherein: the pressure sensor is located in the waterway between the water pump and the brewing device.
9. An automatically calibrated grinding apparatus according to claim 7, wherein: the brewing device comprises a powder residue filter screen.
10. An automatically calibrated grinding apparatus according to claim 5, wherein: the control unit is powered by the power supply module.
CN202310100955.3A 2023-02-08 2023-02-08 Automatic calibration grinding method and equipment Pending CN116350072A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310100955.3A CN116350072A (en) 2023-02-08 2023-02-08 Automatic calibration grinding method and equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310100955.3A CN116350072A (en) 2023-02-08 2023-02-08 Automatic calibration grinding method and equipment

Publications (1)

Publication Number Publication Date
CN116350072A true CN116350072A (en) 2023-06-30

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Application Number Title Priority Date Filing Date
CN202310100955.3A Pending CN116350072A (en) 2023-02-08 2023-02-08 Automatic calibration grinding method and equipment

Country Status (1)

Country Link
CN (1) CN116350072A (en)

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