Description:Field of Invention
The present invention relates to the technical field of household kitchen appliance, more particularly to a low noise automatic mixer grinder with a micro-controller based program of multiple menus operable via an external device, providing automated process of grinding and mixing without human intervention.
Background of the Invention
In modern days many domestic kitchen appliances are used to prepare food. This includes blenders to food processors used for mixing, chopping, slicing, blending, beating etc. Such appliances are useful in reducing the physical effort in cooking and food preparation. A mixer grinder is one such appliance, an electro-mechanical device which helps the user to do mixing, grinding, juicing etc at ease. Traditionally, mixers are mainly used to mix relatively soft solids such as fruits and vegetables. Over the years, mixers have been extended even for harder foods such as meat. These solid or dried foods are much more difficult to break up and grind. Thus, there is an increasing demand for high performance mixers with stiffer blades that can mix or grind different types of food. In every mixer grinder there is an electric motor housed in a suitable enclosure with a provision to attach a mixing jar with appropriate cutting blades. In order to grind and mix different types of solid foods, a strong and powerful motor must be used to drive the blades of the mixer. However, various problems are associated with these high power motors which restrict their usage.
There exists several obvious problem associated with powerful motors such as motor overheating, increase in mixer size and weight, vibration of the motor and its associated noise and other safety concerns. The most two common problems reported widely with the domestic kitchen mixer grinder are the noise and the safety of operation. Accidental injuries like the finger getting injured have been reported in large numbers. This intensifies safety concerns for mixers with powerful motors, as it can seriously injure the user if the user accidentally touches the blade. Even if the mixer is properly designed, it can be a threat to the user, in particular to children, due to improper installation or unintended use. Secondly, the noise level of any mixer grinder available in the market is very high and thus this issue also requires significant attention. The vibrations not only causes the unpleasant sound and unwanted movement of the mixer but also create other safety and design issues. In general, mixers with noticeable vibrations and noise are undesirable and perceived by consumers as unreliable. Uncontrollable vibrations can cause the mixer to tip or fall. Vibration can also affect the normal rotation of the blade, which in turn reduces the efficiency of the mixer. Generally multiple speed options and safety devices for electric safety, over- current/temperature safety etc are provided with the mixer grinder. But these are all not very proactive in preventing the accidents. Therefore there exists a need to automate the process thereby limiting or avoiding the human intervention to avoid such accidents and also simultaneously reduce the noise level significantly.
Majority of mixer grinders available in the market uses an electromechanical rotary switch to control the speed of operation, which is directly related to the grinding/mixing performance. It has been conventional for mixers to have mechanical switches which permit two basic operational functions. First function is a regular grinding where the switch is placed in an “on” position the drive motor runs constantly at a particular speed until the switch is removed from the “on” position. There may be multiple speed options available in the first regular grinding function. Second function is a “momentary” or “pulse” operation where the drive motor is energized as long as the switch is held in the “pulse” position. The various available mixing speeds are primarily driven by a motor through combinations of gears and/or belts and/or variable adjustable pulleys, where mechanical adjustments are made to change mix speeds. Such mixer grinder require that the mixer be stopped in order to change speeds. This arrangement for controlling the drive motor of a mixer requires the user to closely attend the operation and manually control the “pulse” pattern to achieve the desired performance. Since these mixers typically do not include any indication of the duration of a manually controlled cycle, the user may have difficulty reproducing a successful cycle. Regular intervention of user is required to open the jar lid, check the grinding / mixing level of food stuff, stir occasionally, close the lid and re-start the mixer. Further these mixers does not include any safety mechanism related to the feeding chute. Therefore, the motor remains running even when the feeding chute is in open position, for example, to add ingredients.
There is no guide lines available for mixing operations but is carried out by trial and error and on-job experience. Often mixing/grinding involves very specific operations, thereby providing a consistently good result. This may involve controlling variables including specifying the amount of ingredients, the speed, the duration, and other parameters in which ingredients are processed, mixed or grinded. Some recipes require mixing ingredients, then adding further ingredients to the mix, and subsequently, additional mixing. Therefore, the user may be required to turn on the mixer more than once, in particular where the mixing attachments do not readily allow the addition of certain ingredients into the mixing bowl when in motion and the user may need to stop, open the head, change, or clean the mixing attachment(s). It would be desirable to provide a kitchen appliance where the user can easily control these input variables, thereby assisting the user to produce a consistent result.
There exists several prior arts providing mixer grinder with several functions, few are described below
Chinese patent 104873114 provides a kind of low vibration, low voice Full-automatic grinder and its method of work, including a nose assembly with an upper and lower abrasive disk for grinding one another, and the slow speed motor for driving upper and lower abrasive disk relative rotation; The side of the upper and lower abrasive disk is provided with temperature sensor, and the temperature sensor is connected with one of the intelligent circuit board of slow speed motor rotating speed according to the temperature control that the temperature sensor is measured. Extrusion technique is applied in crushing the food stuffs, and the temperature of the upper and lower abrasive disk measured according to temperature sensor using intelligent circuit board controls the slow speed motor rotating speed, influence of the excessive heat to foodstuff quality is avoided, while avoiding every drawback caused by conventional high rate cutting foodstuff.
US Patent 6397735 discloses a food processor with an electronic motor control and display. Time relevant to the operation of the food processor are displayed for reference by the user. A user can select a food processing cycle duration, in which case the display is operated in a count-down mode. If no duration is selected, the display is operated in a count-up mode. Measured motor speed is used by a microprocessor based motor control circuit to regulate power delivered to the drive motor. A programmed auto pulse function delivers power to the drive motor in an on off pattern, freeing the user's hands. A safety switch is arranged to sense the presence or absence of the food pusher in the chute. Operation of the food processor drive motor is paused until the food pusher is replaced in the chute. The food processor is provided with a high-speed function.
An Indian patent application 04664/CHE/2014 discloses a method and a control circuit for controlling a grinder. The control circuit comprises a mode select unit to select a mode of operation of the grinder, a timer unit comprising a down timer for selecting a time duration for which the grinder operates, a speed control unit to select an operating speed of the grinder and a control unit to operate grinder by activating a motor based on inputs received from at least one of the mode select unit, timer and speed control unit, the control unit performs one of operating the motor after the time duration set by up-timer or directly operating the motor for a time duration set up by up-timer. The disclosed grinder has lacunae wherein user can select the required speed and time of operation but it is necessary to know the requirement in terms of speed and time of operation for each grinding/mixing operation.
Another US patent 3612969 discloses an automatic blending solution for blenders for food preparation. It discloses an automatic blender that can be programmed to perform a variety of tasks with perforated recipe card. The card bearing the desired recipe is inserted between a printed circuit control board and an assembly of spring brushes so that the perforations allow only selected brushes to make electrical contact with the PCB. The blender START push button and power switch are also actuated by the recipe card, so the blender has no external controls. The disclosure explains a digital card with recopies which can be inserted into the blender. This has limited use particularly in blending and cannot support other dry grinding, wet grinding etc. Moreover this is more expensive due the need of digital card reader and related electronic control methods. This also requires additional brushes to make electrical contact with the printed circuit board. This can affect the reliability of the blender in long run.
The present mixer operates in a unique and improved manner to solve the conventional problems as described in above prior arts by providing an automatic Mixer Grinder which enables automating the process of grinding and mixing different ingredients without any human interference. In particular the present invention provides an automatic mixer grinder with a micro-controller based program of multiple menus operable via an external device thereby automating the process of grinding and mixing. Further the present invention provides a mixer grinder with reduced noise level by its unique design. In addition the automatic mixer grinder of the present invention is provided with a mountable tower blade design thereby providing a uniform grinding at a relatively slow speed. This eliminates overheating and the food is mixed or grinded at a low temperature thereby preserving the nutrients, flavours and the aroma of the food ingredients.
Objects of the Invention:
The main object of the present invention is to provide an automatic Mixer Grinder which automates the process of grinding and mixing different ingredients without any human intervention.
The primary object of the present invention to provide an automatic mixer grinder with a micro-controller based program of multiple menus operable via an external device thereby automating the process of grinding and mixing without any human intervention.
It is another object of the present invention to provide an automatic mixer grinder with noise level reduced to a minimum decibel.
Still another object of the present invention is to provide an automatic mixer grinder with mountable tower blade design providing uniform grinding providing a consistent output of grinding and mixing of ingredients.
Yet another object of the present invention is to provide an automatic mixer grinder with mountable tower blade design which enables slow speed grinding thereby further reducing the noise level of the mixer grinder.
It is another object of the present invention is to provide an automatic mixer grinder which is operable at slow speed grinding preventing overheating, thereby preserving the nutrients, flavours and the aroma of the food ingredients.
It is another object of the present invention to provide an automatic mixer grinder with enhanced safety of operation.
Although the present invention is mainly designed for automating the process of grinding and mixing different ingredients on a kitchen mixer grinder, it goes without saying that the present invention can be applied and adapted to all mixer grinder of all types and sizes under varied environmental and working conditions.
SUMMARY OF THE INVENTION
From the above discussion of the background, it is apparent that the basic concept of mixer grinder is widely present in the state of the art technology. The present invention automatic Mixer Grinder with automatic process of grinding and mixing different ingredients without any human intervention is an improvement over the existing system. In particular the present invention provides an automatic mixer grinder with a micro-controller based program of multiple menus operable via an external device thereby automating the process of grinding and mixing. Further the present invention provides a mixer grinder with reduced noise level by its unique design.
The present invention provides an automatic mixer grinder with reduced noise level automating the process of grinding and mixing different ingredients operable via an external device, comprising of : an housing, provided with a flat base at its bottom end and a hinged arm at its top end; atleast a receptacle, positioned at the bottom portion of the housing; atleast a mixer jar, which is detachably mounted inside the said receptacle; a lid, which is detachably mounted to the top portion of the said mixer jar; atleast a hopper, provided on top side of the said lid, wherein the said lid is provided with a provision of an opening connecting the said hopper to the said mixer jar; a plurality of chambers, provided within the said hopper for dispensing a plurality of food ingredients; a plurality of hinged doors, provided for closing the said plurality of chambers; a plurality of valves, provided at the bottom end of the said hopper enabling the transit of ingredients between the said hopper to the said mixer jar via the said lid; a mountable tower blade, which is detachably mounted inside the mixer jar at its bottom end; atleast a micro-controller, positioned inside the said housing to operate the said mixer grinder based on the program selected by the user from an external device; and an operating switch, enabling manual operation of the said mixer grinder, Wherein the said mixer grinder is provided with a lining of sound proofing material for noise mitigation.
In the preferred embodiment of the present invention, wherein said provision of an opening provided in the said lid is opened or closed by the said valve mechanism from which the food and water are dispensed into the said mixer jar at pre-determined intervals as determined by the menu program selected by the user from the said external device. Wherein the each of the said opening and closing of the valves is activated by a servo motor that is controlled by the said microcontroller housed within the mixer grinder appliance.
In the preferred embodiment of the present invention, wherein said mountable tower blade is provided with an array of stacked blades to form a tower of blades that helps in uniform grinding and better cleaning. The mountable tower blade design enables the automatic mixer grinder to adopt slow speed grinding thereby reducing the noise level.
In the preferred embodiment of the present invention, the noise level of the mixer grinder during the operation is reduced by acoustically designing the motor housing with a unique way of absorbing sound waves by lining with sound proofing material between the said double walled structure of the said motor housing, the coupling area, mixer jars, and the lid.
In an embodiment of the present invention, a method of automating the process of grinding and mixing different ingredients using the said automatic mixer grinder is provided. The automatic mixer grinder fully automates the process of grinding and mixing different ingredients operable via an external device which completely eliminates the human intervention thereby avoiding accidents. The automatic mixer grinder of the present invention is also operable by conventional method of Manual operation by using the said operating switch provided at the bottom front of the said housing.
Other features and advantages of embodiments will be apparent from the accompanying drawings and from the detailed description that follows.
Brief Description of the Drawings
Fig.1 represents the automatic mixer grinder (141) with reduced noise level with automated process of grinding and mixing different ingredients operable via an external device in accordance with an embodiment of the present invention.
Fig. 2 represents the automatic mixer grinder (141) showing the plurality of hinged doors (148a, 148b) provided at the top end of the said hopper (146) in accordance with an embodiment of the present invention.

Fig. 3 represents the automatic mixer grinder (141) showing the plurality of valves (149) operated by a servo motor (170) in accordance with an embodiment of the present invention.
Fig. 4 represents the automatic mixer grinder (141) showing the mountable tower blade (155) detachably mounted inside the mixer jar (144) in accordance with an embodiment of the present invention.
While the invention is amenable to various modifications and alternative forms, specifics thereof have been shown by way of example in the drawings and will be described in detail. It should be understood, however, that the intention is not to limit the invention to the particular embodiments described. On the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concept of the term appropriately to describe its own invention in the best way. The present invention should be construed as meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined. Therefore, the embodiments described in this specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, it should be understood that equivalents and modifications are possible.
Detailed Description of the Invention with Respect to the Drawings
The present invention as embodied by "Automatic mixer grinder with noise mitigation" succinctly fulfils the above-mentioned need(s) in the art. The present invention has objective(s) arising as a result of the above-mentioned need(s), said objective(s) being enumerated below. In as much as the objective(s) of the present invention are enumerated, it will be obvious to a person skilled in the art that, the enumerated objective(s) are not exhaustive of the present invention in its entirety, and are enclosed solely for the purpose of illustration. Further, the present invention encloses within its scope and purview, any structural alternative(s) and/or any functional equivalent(s) even though, such structural alternative(s) and/or any functional equivalent(s) are not mentioned explicitly herein or elsewhere, in the present disclosure. The present invention therefore encompasses also, any improvisation(s)/ modification(s) applied to the structural alternative(s)/functional alternative(s) within its scope and purview. The present invention may be embodied in other specific form(s) without departing from the spirit or essential attributes thereof.
Throughout this specification, the use of the word "comprise" and variations such as "comprises" and "comprising" may imply the inclusion of an element or elements not specifically recited.
The present invention provides an automatic mixer grinder (141) with reduced noise level automating the process of grinding and mixing different ingredients operable via an external device, comprising of : an housing (142), provided with a flat base (160) at its bottom end to be positioned on any flat surface and at the top end provided with a hinged arm (143); atleast a receptacle (151), positioned at the bottom portion of the housing on upper side of the said flat base (160); atleast a mixer jar (144), which is detachably mounted to the said housing inside the said receptacle (151); a lid (145), which is detachably mounted to the top portion of the said mixer jar (144) acting as a closure to the wide opening of the said mixer grinder; atleast a hopper (146), provided on top side of the said lid (144), wherein said bottom end of the hopper is molded to the top end of the said lid (145), wherein the said lid is provided with a provision of an opening (152) connecting the said hopper (146) to the said mixer jar (144); a plurality of chambers (147a,147b), provided within the said hopper (146) for dispensing a plurality of food ingredients; a plurality of hinged doors (148a, 148b), provided at the top end of the said hopper (146) for closing the said plurality of chambers (147a,147b); a plurality of valves (149), provided at the bottom end of the said hopper (146) enabling the transit of ingredients between the said hopper to the said mixer jar (144) via the said lid (145); a mountable tower blade (155), which is detachably mounted inside the mixer jar (144) at its bottom end; atleast a micro-controller, positioned inside the said housing to operate the said mixer grinder based on the program selected by the user from an external device; and an operating switch (150), enabling manual operation of the said mixer grinder, Wherein the said mixer grinder is provided with a lining of sound proofing material for noise mitigation.
In the preferred embodiment of the present invention, wherein the said micro-controller is programmed with different menu options, wherein the said user can operate the mixer grinder by selecting the desired menu program from an external device connected to the said Mixer Grinder via wireless communication network.
In the preferred embodiment of the present invention, wherein the said external devices includes but are not limited to mobile phones, laptop, computer, tablets, smart devices such as smart watches, smart cars, smart bands, smart key chains, smart glasses.
In the preferred embodiment of the present invention, wherein the said wireless communication network includes wireless protocols such as Bluetooth, Zigbee, NFC, Wi-Fi, LiFi, 5G.
In the preferred embodiment of the present invention, wherein the said plurality of chambers (147a, 147b) includes chambers for dispensing food ingredients including solid foods, semi-solid foods, fluids and water.
In the preferred embodiment of the present invention, wherein number of said plurality of hinged doors (148a, 148b) equals to the number of said plurality of chambers (147a, 147b), enabling closing of each chamber.
In the preferred embodiment of the present invention, wherein the said plurality of valves (149) are operated by a servo motor (170) that is controlled by the microcontroller housed within the said mixer grinder appliance.
In the preferred embodiment of the present invention, wherein the said hinged arm (143) houses the said servo motor (170) with the valve mechanism that enables the control of opening or closing of the hopper dispensing mouth when the said mixer jar (144) is latched to the said lid (145).
In the preferred embodiment of the present invention, wherein said provision of an opening provided in the said lid (145) is opened or closed by the said valve mechanism from which the food and water are dispensed into the said mixer jar at pre-determined intervals as determined by the menu program selected by the user from the said external device. Wherein the each of the said opening and closing of the valves is activated by a servo motor (170) that is controlled by the said microcontroller housed within the mixer grinder appliance.
In the preferred embodiment of the present invention, wherein said housing, mixer jar, coupling area, and the lid are provided with a durable double walled design structure.
In the preferred embodiment of the present invention, wherein said mountable tower blade (155) is provided with an array of stacked blades to form a tower of blades that helps in uniform grinding and better cleaning.
In the preferred embodiment of the present invention, wherein said mountable tower blade (155) design creates a taller vortex for the ingredients providing improved and uniform grinding of the ingredients.
In the preferred embodiment of the present invention, wherein said mountable tower blade (155) design enables the automatic mixer grinder to adopt slow speed grinding thereby reducing the noise level.
In the preferred embodiment of the present invention, wherein the slow speed operation of the mixer grinder provides grinding operation without generating heat thereby preserving the nutrients, flavours and the aroma of the ingredients.
In the preferred embodiment of the present invention, the noise level of the mixer grinder (141) during the operation is reduced by acoustically designing the motor housing with a unique way of absorbing sound waves by lining with sound proofing material.
In the preferred embodiment of the present invention, wherein said lining of sound proofing material for noise mitigation is provided between the said double walled structure of the said motor housing, the coupling area, mixer jars, and the lid.
In the preferred embodiment of the present invention, wherein said lining of sound proofing material for noise mitigation is provided between the double wall of the jar which will have a collar to further reduce noise generated at the coupling of jar and motor housing.
In the preferred embodiment of the present invention, wherein said lining of sound proofing material provided between the said double walled structure of the said motor housing, the coupling area, mixer jars, and the lid reduces the noise level of the automatic Mixer grinder to a minimum decibel.
In the preferred embodiment of the present invention, Wherein said automatic mixer grinder (141) fully automates the process of grinding and mixing different ingredients operable via an external device which completely eliminates the human intervention thereby avoiding accidents.
In an embodiment of the present invention, wherein the said automatic mixer grinder (141) is also operable by conventional method of Manual operation by using the said operating switch (150) provided at the bottom front of the said housing (142).
In an embodiment of the present invention, a method of automating the process of grinding and mixing different ingredients using the said automatic mixer grinder, comprises steps of :
• Adding the food ingredients and water into the said plurality of chambers (147a, 147b) provided in the said hopper (146);
• Selecting the desired menu program embedded in the said micro-controller via an external device;
• dispensing the ingredients and water at pre-determined times and interval based on the menu program selected by the user, wherein said provision of an opening provided in the said lid (145) is opened or closed by the said valve mechanism enabling dispensing of the ingredients into the mixer jar (144);
• opening and closing of the said valves (149) is activated by a servo motor (170) that is controlled by the said microcontroller housed within the mixer grinder appliance;
• grinding of the ingredients is performed by mountable tower blade design (155) which creates a taller vortex of the ingredients providing an improved and uniform grinding;
• reducing the noise level of the said automatic mixer grinder to a minimum decibel by using a sound proofing material; and
• adopting slow speed grinding with the help of mountable tower blade design (155) enables the automatic mixer grinder to further reduce the noise level.

In the preferred embodiment of the present invention, wherein the said micro-controller is programmed with different menu options, wherein the said user can operate the mixer grinder (141) by selecting the desired menu program from an external device connected to the said Mixer Grinder via wireless communication network.
In the preferred embodiment of the present invention, wherein the said hinged arm (143) houses the said servo motor (170) with the valve mechanism that enables the control of opening or closing of the hopper dispensing mouth when the said mixer jar is latched to the said lid (145).
In the preferred embodiment of the present invention, wherein said mountable tower blade (155) is provided with an array of stacked blades to form a tower of blades that helps in uniform grinding and better cleaning.
In the preferred embodiment of the present invention, wherein the slow speed operation of the mixer grinder provides grinding operation without generating heat thereby preserving the nutrients, flavours and the aroma of the ingredients.
In the preferred embodiment of the present invention, wherein said lining of sound proofing material for noise mitigation is provided between the said double walled structure of the said motor housing, the coupling area, mixer jars, and the lid.
In the preferred embodiment of the present invention, Wherein said automatic mixer grinder (141) fully automates the process of grinding and mixing different ingredients operable via an external device which completely eliminates the human intervention thereby avoiding accidents.
In an embodiment of the present invention, wherein the said automatic mixer grinder (141) is also operable by conventional method of Manual operation by using the said operating switch (150) provided at the bottom front of the said housing.
Example 1
The present invention provides an automatic mixer grinder (141) with reduced noise level automating the process of grinding and mixing different ingredients operable via an external device, comprising of : an housing (142), provided with a flat base (160) at its bottom end to be positioned on any flat surface and at the top end of the housing is provided a hinged arm (143). A mixer jar (144) is provided at the bottom end of the housing detachably positioned inside the receptacle (151), the said mixer jar (144) is closed with a lid (145), which is detachably mounted to the top portion of the said mixer jar. A hopper (146) is attached to the top end of the lid (145). The portion connecting the lid (145) and the hopper (146) is provided with an opening (152) which is opened or closed by a valve. A plurality of chambers (147a,147b) are provided within the said hopper (146) for dispensing food ingredients and the each of the chambers are closed with a hinged doors (148a, 148b). The food ingredients and water is added into the said plurality of chambers (147a, 147b) provided in the hopper (146). Desired menu program from the said micro-controller is selected by an external device such as mobile application connected to the said mixer grinder via wireless communication network such as Bluetooth of wi-fi. Wherein the said ingredients and water is dispensed at pre-determined times and interval based on the menu program selected by the user, wherein said provision of opening provided in the said lid is opened or closed by the said valve mechanism enabling dispensing of the ingredients into the mixer jar (144). Opening and closing of the said valves (149) is activated by a servo motor (170) that is controlled by the said microcontroller housed within the mixer grinder appliance. Grinding of the ingredients is performed by mountable tower blade (155) design which creates a taller vortex of the ingredients providing an improved and uniform grinding. In addition the noise level of the said automatic mixer grinder is reduced to a minimum decibel by using a sound proofing material inside the double walled structure of the said motor housing, the coupling area, mixer jars, and the lid. Slow speed grinding of the mountable tower blade (155) design enables the automatic mixer grinder to further reduce the noise level. The automatic mixer grinder fully automates the process of grinding and mixing different ingredients operable via an external device which completely eliminates the human intervention thereby avoiding accidents.
Although the proposed concept has been described as a way of example with reference to various models, it is not limited to the disclosed embodiment and that alternative designs could be constructed without deviating from the scope of invention as defined above.
It will be apparent to a person skilled in the art that the above description is for illustrative purposes only and should not be considered as limiting. Various modifications, additions, alterations, and improvements without deviating from the spirit and the scope of the invention may be made by a person skilled in the art.

, Claims:We claim,
1. An automatic mixer grinder (141) with reduced noise level automating the process of grinding and mixing different ingredients operable via an external device, comprising of :
a housing (142), provided with a flat base (160) at its bottom end to be positioned on any flat surface and at the top end provided with a hinged arm (143);
atleast a receptacle (151), positioned at the bottom portion of the housing (142) on upper side of the said flat base (160);
atleast a mixer jar (144), which is detachably mounted to the said housing (142) inside the said receptacle (151);
a lid (145), which is detachably mounted to the top portion of the said mixer jar (144) acting as a closure to the wide opening of the said mixer grinder;
atleast a hopper (146), provided on top side of the said lid (145), wherein said bottom end of the hopper is molded to the top end of the said lid, wherein the said lid (145) is provided with a provision (152) of an opening connecting the said hopper to the said mixer jar;
a plurality of chambers (147a, 147b), provided within the said hopper (146) for dispensing a plurality of food ingredients;
a plurality of hinged doors (148a, 148b), provided at the top end of the said hopper (146) for closing the said plurality of chambers (147a, 147b);
a plurality of valves (149), provided at the bottom end of the said hopper (146) enabling the transit of ingredients between the said hopper to the said mixer jar via the said lid;
a mountable tower blade (155), which is detachably mounted inside the mixer jar at its bottom end;
atleast a micro-controller, positioned inside the said housing to operate the said mixer grinder based on the program selected by the user from an external device; and
an operating switch (150), enabling manual operation of the said mixer grinder,
Wherein the said mixer grinder is provided with a lining of sound proofing material for noise mitigation.

2. The automatic mixer grinder with reduced noise level, as claimed in claim 1, wherein the said micro-controller is programmed with different menu options, wherein the said user can operate the mixer grinder by selecting the desired menu program from an external device connected to the said Mixer Grinder via wireless communication network.

3. The automatic mixer grinder with reduced noise level, as claimed in claim 1, wherein the said external devices includes but are not limited to mobile phones, laptop, computer, tablets, smart devices such as smart watches, smart cars, smart bands, smart key chains, smart glasses.

4. The automatic mixer grinder with reduced noise level, as claimed in claim 1, wherein the said wireless communication network includes wireless protocols such as Bluetooth, Zigbee, NFC, Wi-Fi, LiFi, 5G.

5. The automatic mixer grinder with reduced noise level, as claimed in claim 1, wherein the said plurality of chambers (147a, 147b) includes chambers for dispensing food ingredients including solid foods, semi-solid foods, fluids and water.

6. The automatic mixer grinder with reduced noise level, as claimed in claim 1, wherein number of said plurality of hinged doors (148a, 148b) equals to the number of said plurality of chambers (147a, 147b), enabling closing of each chamber.

7. The automatic mixer grinder with reduced noise level, as claimed in claim 1, wherein the said plurality of valves (149) are operated by a servo motor (170) that is controlled by the microcontroller housed within the said mixer grinder appliance.

8. The automatic mixer grinder with reduced noise level, as claimed in claim 1, wherein the said hinged arm (143) houses the said servo motor (170) with the valve mechanism that enables the control of opening or closing of the hopper dispensing mouth when the said mixer jar is latched to the said lid.

9. The automatic mixer grinder with reduced noise level, as claimed in claim 1, wherein said housing, mixer jar, coupling area, and the lid are provided with a durable double walled design structure.

10. The automatic mixer grinder with reduced noise level, as claimed in claim 1, wherein said mountable tower blade (155) is provided with an array of stacked blades to form a tower of blades enabling uniform grinding and better cleaning.

11. The automatic mixer grinder with reduced noise level, as claimed in claim 1, wherein said mountable tower blade (155) design creates a taller vortex for the ingredients providing improved and uniform grinding of the ingredients.

12. The automatic mixer grinder with reduced noise level, as claimed in claim 1, wherein said mountable tower blade (155) design enables the automatic mixer grinder to adopt slow speed grinding thereby reducing the noise level.

13. The automatic mixer grinder with reduced noise level, as claimed in claim 1, wherein the slow speed operation of the mixer grinder provides grinding operation without generating heat thereby preserving the nutrients, flavours and the aroma of the ingredients.

14. The automatic mixer grinder with reduced noise level, as claimed in claim 1, wherein said lining of sound proofing material for noise mitigation is provided between the said double walled structure of the said motor housing, the coupling area, mixer jars, and the lid.

15. The automatic mixer grinder with reduced noise level, as claimed in claim 1, wherein said lining of sound proofing material for noise mitigation is provided between the double wall of the mixer jar which is provided with a collar to further reduce noise generated at the coupling of jar and motor housing.

16. The automatic mixer grinder with reduced noise level, as claimed in claim 1, Wherein said automatic mixer grinder fully automates the process of grinding and mixing different ingredients operable via an external device which completely eliminates the human intervention thereby avoiding accidents.

17. The automatic mixer grinder with reduced noise level, as claimed in claim 1, wherein the said automatic mixer grinder is also operable by conventional method of Manual operation by using the said operating switch (150) provided at the bottom front of the said housing.

18. A method of automating the process of grinding and mixing different ingredients using the said automatic mixer grinder, comprising steps of :
a. Adding the food ingredients and water into the said plurality of chambers (147a, 147b) provided in the said hopper (146);
b. Selecting the desired menu program embedded in the said micro-controller via an external device;
c. dispensing the ingredients and water at pre-determined times and interval based on the menu program selected by the user, wherein said provision of an opening provided in the said lid (145) is opened or closed by the said valve mechanism enabling dispensing of the ingredients into the mixer jar (144);
d. opening and closing of the said valves (149) is activated by a servo motor (170) that is controlled by the said microcontroller housed within the mixer grinder appliance;
e. grinding of the ingredients is performed by mountable tower blade (155) design which creates a taller vortex of the ingredients providing an improved and uniform grinding;
f. reducing the noise level of the said automatic mixer grinder to a minimum decibel by using a sound proofing material; and
g. adopting slow speed grinding with the help of mountable tower blade design (155) enables the automatic mixer grinder to further reduce the noise level.