Solid Dispenser
In one embodiment, the present disclosure includes a solid dispenser comprising a dispensing element and a housing. The dispensing element includes a plurality of blades extending from a cylindrical base. In one example embodiment, the blades are separated by 90 degrees to form channels from an upper opening in the housing to a lower opening in the housing. A hopper for storing items to be dispensed may be configured on one side of the dispenser, and a trap for controlling the flow of dispensed items may be configured on the other side of the dispenser. In one embodiment, the dispenser is controlled by motors coupled to a server as part of a fully automated cloud controlled robotic food preparation system, where each dispenser may accurately deliver different quantities of ingredients for different orders.
This application claims the benefit of priority to U.S. Provisional Patent Application No. 62/652,740, filed Apr. 4, 2018, the entire contents of which are incorporated herein by reference.
BACKGROUNDThe present disclosure relates to apparatuses, systems, and methods of solid dispensing, and in some embodiments, to a computer controlled solid dispenser for an automated robotic system.
Dispensers are typically used to store and deliver items. One challenge with creating a reliable dispenser is the ability to control the amount of material that is delivered. This is particularly challenging when the material is food, for example, such as solid chucks of fruits. Another challenge with creating a reliable dispenser is that the materials cannot get stuck inside the system. For automated delivery systems, ensuring that there are no jams and that repeatable quantities of materials can be delivered reliably may be paramount.
The present disclosure introduces a solid dispenser mechanism that may be used to reliably deliver repeatable quantities of items, such as food items.
SUMMARYIn one embodiment, the present disclosure includes a solid dispenser comprising a dispensing element and a housing. The dispensing element includes a plurality of blades extending from a cylindrical base. In one example embodiment, the blades are separated by 90 degrees to form channels from an upper opening in the housing to a lower opening in the housing. A hopper for storing items to be dispensed may be configured on one side of the dispenser, and a trap for controlling the flow of dispensed items may be configured on the other side of the dispenser. In one embodiment, the dispenser is controlled by motors coupled to a server as part of a fully automated cloud controlled robotic food preparation system, where each dispenser may accurately deliver different quantities of ingredients for different orders.
The following detailed description and accompanying drawings provide a better understanding of the nature and advantages of the present disclosure.
In the following description, for purposes of explanation, numerous examples and specific details are set forth in order to provide a thorough understanding of the present disclosure. Such examples and details are not to be construed as unduly limiting the elements of the claims or the claimed subject matter as a whole. It will be evident to one skilled in the art, based on the language of the different claims, that the claimed subject matter may include some or all of the features in these examples, alone or in combination, and may further include modifications and equivalents of the features and techniques described herein.
The hopper may hold components to be dispensed (aka ingredients), such as food ingredients, for example. The food ingredients may be frozen or fresh ingredients, either whole pieces or with different size cuts, for example. In this example, the hopper includes a minor incline 112 and major incline 113. An upper opening in the top of the hopper 110 may be larger than the lower opening 111 in the bottom of the hopper so that the hopper can hold a larger amount of ingredients to be dispensed, for example. In this example, the major incline 113 directs the ingredients from at least one side of the hopper 110 toward one side of the lower opening 111 in the bottom of the hopper. Additionally, in this example, the minor incline 112 directs the ingredients from at least another side of the hopper 110 toward one side of the lower opening 111 in the bottom of the hopper. Opening 111 is exposed to a dispenser unit 120 to allow ingredients to smoothly flow from the hopper to the dispenser. In this example, the hopper 110 may be rectangular to allow multiple such structures to be placed adjacent to each other for efficient dispensation of multiple ingredients using limited space along a particular surface (e.g., optimizing space where units are placed side-by-side for access by a robotic system).
In one embodiment, the first and second channels curve about the horizontal axis such that the first and second channels shift by a number of degrees (e.g., 90 degrees) from the proximate end 511 (e.g., the top in
In one example embodiment, the hopper incorporates an agitation mechanism that periodically agitates the product in the dispenser without dispensing the product such that the product stays in state that is easy to dispense. The frequency and the agitating mechanisms (e.g., circular motion with different blades, impact force along the back wall, etc. . . . ) may be controlled by a combination of local and cloud servers in concert with the type of product in the hopper, for example.
Referring to
Referring to
In one example embodiment, the first and second channels are selectively rotated into a home position, which may be the position shown in
Advantageously, as mentioned above, the size of the channel inputs may be varied so that the system reliably delivers different amounts of repeatable quantities of ingredients. For example, one or more rotational movements may deliver a first amount of ingredients for a first use, and another one or more rotational movements may deliver a second amount of ingredients for a second use. This is particularly advantageous where the dispenser is used to dispense solid food items for consecutive orders which may use different amounts of ingredients, for example.
Referring again to
Additionally, different cut sizes of different ingredients may have different size dispenser elements. For example, a larger cut size may have a cylindrical base with a smaller radius and blades with correspondingly larger heights, where another smaller cut size may have a cylindrical base with a larger radius and blades with correspondingly smaller heights. Accordingly, in one embodiment, for a first size of items, the cylinder has a first diameter and the blades have a first radial length. In another embodiment, for a second size of items greater than the first size of items, the cylinder has a second diameter and the blades have a second radial length. The first diameter is greater than the second diameter and the first radial length is less than the second radial length.
In one embodiment, the dispenser element agitates (rotates back and forth) between two predefined positions to provide first and second amounts of ingredients. The two positions may be symmetrical because, as mentioned above, the input opening size of one channel at the upper opening may correspond to an output opening size of the other channel at the lower opening. This allows for alternating first and second channel dispensing of ingredients in succession. This may provide for nearly equal quantized portions of the ingredient to be dispensed from each channel into the lower opening of the dispenser unit and through the trap, for example.
In yet another embodiment the first amount of an ingredient is an incremental amount, and the dispenser element agitates between the two positions through a predetermine number of cycles to provide a final amount of the ingredient.
In one embodiment, the dispenser apparatus includes a scale to measure the weight of the first amount of ingredients after falling out of the first channel. In one embodiment, a receptacle is situated to receive the items exiting the trap and a scale is situated to measure the weight of the receptacle and items located within the receptacle. In another embodiment, the value of weight is used to control the motor coupled to the dispensing element to dispense a final amount of the ingredients specified in an instruction received from the local server, for example.
In yet another embodiment, a controller is coupled to control a motor (e.g., a stepper motor) coupled to open and close the trap, and a server is coupled to the controller. In response to an instruction from the server to the controller to dispense, for example, the controller opens the trap, and the controller closes the trap prior to responding to the server that the dispense operation is completed.
In one embodiment, the scale provides a feedback signal to the controller such that the dispenser element responds to the weight of items within the receptacle in a local feedback loop to deliver a desired weight of the items. In another embodiment, a feedback loop between the dispenser and the local server may fine tune the weight of items in the receptacle.
In another embodiment, the dispenser apparatus includes a server coupled to the controller. An initial calibration factor is loaded from the server to the controller to begin an initial rotation value and cycle value to deliver the desired weight of the items.
The above description illustrates various embodiments of the present disclosure along with examples of how aspects of the particular embodiments may be implemented. The above examples should not be deemed to be the only embodiments, and are presented to illustrate the flexibility and advantages of the particular embodiments as defined by the following claims. Based on the above disclosure and the following claims, other arrangements, embodiments, implementations and equivalents may be employed without departing from the scope of the present disclosure as defined by the claims.
Claims
1. An apparatus comprising:
- a hopper to hold ingredients; and
- a dispenser unit coupled below the hopper to receive the ingredients through an opening in the hopper, the dispenser unit comprising a housing and a dispenser element, the dispenser element coupled rotationally about a horizontal axis, the dispenser element having a first and second channels about the horizontal axis,
- wherein the dispenser element and the hopper couple such that the first and second channels may be selectively rotated dispense ingredients.
2. The apparatus of claim 1 further comprising a trap coupled below the dispenser unit, the trap comprising a flap having a first position and a second position, wherein in the first position the flap prevents ingredients from the dispenser unit from passing through the trap, and in a second position the flap produces an opening allowing ingredients from the dispenser unit to pass through the trap.
3. The apparatus of claim 1 wherein the first and second channels are formed from four blades emanating from a cylindrical base about the horizontal axis, wherein the blades emanate at 90 degrees from each other along the length of the cylindrical base, and wherein two adjacent blades of the four blades form the first channel and the other two adjacent blades of the four blades form the second channel.
4. The apparatus of claim 3 wherein the first and second channels curve along the horizontal axis such that the first and second channels shift by 90 degrees from a proximate end to a distal end of the dispenser element.
5. The apparatus of claim 1 wherein the first channel may be selectively rotated between first and second degrees into a first position to produce a first opening between the first channel and the opening in the hopper, and in accordance therewith, a first amount of the ingredients enter the first channel.
6. The apparatus of claim 5 wherein the second channel may be selectively rotated into a second position to produce a second opening between the second channel and the opening in the hopper, and in accordance therewith, a second amount of the ingredients enter the second channel.
7. The apparatus of claim 6 wherein the dispenser element is rotated so that the first and second openings are approximately the same.
8. The apparatus of claim 6 wherein a rotation to generate the first or second openings is determined by a predetermined calibration factor corresponding to at least a size of the first or second channels, a desired amount of the ingredients, and a cut size of the ingredients.
9. The apparatus of claim 6 wherein the first and second channels may be selectively rotated into a third position allowing the first amount of ingredients to fall out of the first channel, and wherein the first and second channels may be selectively rotated into a fourth position allowing the second amount of ingredients to fall out of the second channel.
10. The apparatus of claim 9 wherein the first amount of ingredients is an incremental amount, and wherein the dispenser element rotates between a plurality of positions for a predetermined number of cycles to provide a final amount of the ingredients.
11. The apparatus of claim 1 further comprising a scale to measure a weight of dispensed ingredients, wherein a value measured by the scale is used to recalculate a number of cycles of rotation to dispense a final amount of the ingredients.
12. An apparatus comprising:
- a housing having upper opening for receiving ingredients to be dispensed and a lower opening for dispensing the ingredients; and
- a dispenser element comprising four blades configured 90 degrees from each other around a central cylinder and curved along a length of the cylinder by a 90 degrees to create a first channel and a second channel between the upper opening and lower opening,
- wherein the blades are rotated between first and second positions to control the flow of ingredients from the upper opening through the first and second channels and to the lower opening.
13. The apparatus of claim 12 wherein, for a first size of ingredients, the cylinder has a first diameter and the blades have a first radial length, and wherein for a second size of ingredients greater than the first size of ingredients, the cylinder has a second diameter and the blades have a second radial length, and wherein the first diameter is greater than the second diameter and the first radial length is less than the second radial length.
14. The apparatus of claim 12 further comprising:
- a hopper coupled to the upper opening; and
- a trap coupled to the lower opening.
15. The apparatus of claim 12 further comprising a first motor coupled to rotate the dispenser element and produce the flow of ingredients.
16. The apparatus of claim 12 further comprising:
- a controller coupled to control the first motor;
- a second motor coupled to a trap and further coupled to the controller to open and close the trap; and
- a server coupled to the controller,
- wherein in response to a command from the server to the controller to dispense, the controller configures the motor to open the trap, and wherein the controller closes the trap prior to responding to the server that the dispense operation is completed.
17. The apparatus of claim 16 further comprising:
- a receptacle positioned below the trap to receive the ingredients exiting the trap; and
- a scale coupled to the receptacle to measure a weight of the ingredients located within the receptacle.
18. The apparatus of claim 17 wherein the scale provides a feedback signal to the controller such that the dispenser element responds to the weight of ingredients within the receptacle to deliver a weight of ingredients specified in an instruction received by the controller from a server.
19. The apparatus of claim 18 wherein the controller provides a feedback signal to the server such that the server responds to the weight of ingredients within the receptacle to configure the controller to dispense an updated weight of ingredients.
20. The apparatus of claim 16 wherein an initial calibration factor is loaded from the server to the controller to set a rotation value and a cycle value to deliver the desired weight of the items.
Type: Application
Filed: Jul 31, 2018
Publication Date: Oct 10, 2019
Inventors: Vipin JAIN (Saratoga, CA), Venkateswaran AYALUR (Cupertino, CA), Vijayasimha DODDABALAPUR (Foster City, CA)
Application Number: 16/051,052