The present technology pertains to customizable cooling die cutting, ripping and shaping plate inserts, endplates, connections and configurations. In particular, but not by way of limitation, the present technology provides Changeable Rotatable Cooling Die Outlet End Plates.
In various embodiments the present technology is directed to a system for cutting an extrudate exiting a cooling die, the system comprising: a cooling die with an outlet portion end for excretion of an extrudate,; and one or more plates connected to the outlet portion end, said plates including a cutting portion which may cut, slash, rip or shape the extrudate that flow through the cutting portion, wherein the one or more plates may be placed in series, and able to be placed in different order configurations.
In many embodiments, the system further comprises an insert connection device attached to the outlet end, wherein the one or more plates are connected to the insert connection device, allowing the one or more plates to couple with the outlet end via the insert connection device. The system in various embodiments also includes the insert connection device attached to the outlet end by covering at least a portion of the outlet end. In several embodiments the system also includes one or more plates that are one or more plate inserts placed inside the insert connection device, allowing the one or more plate inserts to couple with the outlet or outlet end of the cooling die.
In the description, for purposes of explanation and not limitation, specific details are set forth, such as particular embodiments, procedures, techniques, etc. to provide a thorough understanding of the present technology. However, it will be apparent to one skilled in the art that the present technology may be practiced in other embodiments that depart from these specific details.
The accompanying drawings, where like reference numerals refer to identical or functionally similar elements throughout the separate views, together with the detailed description below, are incorporated in and form part of the specification, and serve to further illustrate embodiments of concepts that include the claimed disclosure and explain various principles and advantages of those embodiments.
The methods and systems disclosed herein have been represented where appropriate by conventional symbols in the drawings, showing only those specific details that are pertinent to understanding the embodiments of the present disclosure so as not to obscure the disclosure with details that will be readily apparent to those of ordinary skill in the art having the benefit of the description herein.
Meat analogues and meat alternative products made from plant proteins, plant products, protein concentrates and isolates are gaining in popularity, this is due to a variety of factors including increased environmental consciousness; specifically, the effects the meat industry is known to have on climate change, global warming and the high level of greenhouse gases it produces, and increased health consciousness in the general population with the promotion of low cholesterol, low fat, plant-based protein alternatives as well as increased awareness of animal rights in the developed world.
However, in their current state, meat analogues, meat alternatives and plant-based foods and proteins may suffer from several disadvantages and shortcomings relative to natural meat. Some obvious disadvantages and shortcomings of current alternative meat products are their taste and texture, which are different from and fail to replicate the taste and texture of natural meats. Plant-based alternatives also fail to resemble meats in color, shape, smell and other physical characteristics. Finally, increasing the affordability and availability of these meat analogues and plant proteins are a challenge because producing plant-based meat alternatives are much costlier and more difficult than industrial scale meat production.
Therefore, in the field of meat analogue or meat alternative manufacturing processes, it is generally accepted that there are several goals that the final meat analogue product and the manufacturing process itself must meet; these include alternative meat products that are desirable to the senses, taste good and affordable. Further, the alternative meat products should replicate the texture of natural meats. A meat-like texture allows the bite or crunch of a meat analogue product to feel like that of natural meats to the consumer. Other goals are for the meat analogue to have the same color and/or physically resemble natural meats. Processes making meat analogue products must be scalable, highly efficient, and largely free from manufacturing defects and disruptions. Production line efficiency allows the meat analogue to be affordable and widely available to the general population as a reasonable and realistic alternative to animal proteins.
To realize these goals, the meat analogue industry has moved towards a High Moisture Extrusion (HME) process (referred to herein as “extrusion”, “extrusion process”, “HME process” or “HME”). It is generally accepted that the HME process involves several standardized steps, these steps may be modifiable, altered, added to, or removed depending on the mixtures, recipes and ingredients used as well as the desired product outcome. However, the standard process includes feeding and conveying ingredients into an extruder, mixing, heating and melting these ingredients in the extruder, feeding the mixture into a cooling die which further cools and structures the mixture to achieve and/or maintain the desired meat-like texture and excrete it as a final or semi-finished product (referred to herein as “texturate” or “extrudate”). Post-processing steps may also be added after the HME process, after the cooling die, to the texturate/extrudate, which may include cutting and shearing the protein, or more typically after the extrudate leaves the cooling die, these steps may include cutting, shearing, cooking, freezing, storing, or adding flavors, fats and other food manufacturing and culinary additives. The adding of flavors to the extrudate is usually done before the extrudate is frozen to be packaged.
Traditionally, the cooling systems that are utilized in the cooling die step after extrusion are either flat cooling dies or round/annular cooling dies, also known as cooling nozzles among various other names. Both these types of cooling dies are well known to those skilled in the art. Cooling dies usually have an inlet end, where the extrudate is directed to from the extruder into an inlet, a flow channel for the extrudate to travel through the die as it is being cooled and an outlet end where the texturate/extrudate comes out of an outlet in the outlet end of the die. After the extrudate leaves the cooling die, excreted from an opening at the outlet end of the die, it is usually either cut manually or by a separate automated cutting machine, before being further processed and cooked. Rips may also be made manually or by a separate automated machine to the protein to open the texturate for cooking and allowing the ingress of moisture. However, depending on the size of the cooling die, the excreted texturate can get very wide, or comes out in large pieces making it harder to cut or further process in cutting machines; usually, the larger the cooling die the wider the texturate that comes out.
Current solutions employed in the industry include the outlet being a cross shaped blade or a metallic piece with several dividers that produce flat square-like or rectangular-like shapes, so that the texturate is divided into 4 or 6 strings, if there is another metallic crossblade used as well, which are conveyed out of the cooling die in multiple instead of one string. However, this solution has its own issues; the extrusion process is never perfectly stable, there are always smaller or larger fluctuations in pressure and temperature which create fluctuations in the product's quality, referred to as a varying degree of texturization. This varied product quality directly affects the cutting process that follows cooling and leads to problems at the cutter. For example, if the extrusion process is running for a continued period along with the extruder, the extrudate may have an unstable structure and protein fiber orientation, making it difficult to cut, or flow smoothly through the outlet.
The solutions proposed herein provide for changeable, adjustable, rotatable and customizable plate inserts and/or endplates (collectively referred to as “plates”) attached to a cooling die, which minimize cutting problems from varying degrees of texturization, by generating cut, ripped or shaped strings, ribbons or other forms and shapes of extrudate, or producing certain sizes of extrudate/texturate, appropriately priming it for the cutting step of the HME process following excretion of the extrudate from the cooling die. The solutions presented may also provide a solution to correcting faulty pressure in the outlet end of the cooling die, as well as other parts of the HME process when necessary.
Large size cooling dies usually have outlets/outlet gaps of 10-11 mm wide; wider widths are also possible based on the size of the die. These wider outlet gaps result in a thicker texturate that comes out of the die, resulting in a thick final product. For most applications, thick texturates are not suitable for replicating the feel and size of meats like chicken, and therefore a thinner texturate is required to produce a thinner final product. To reduce thickness of the texturate in larger cooling dies, additional cuts are required to be made to the texturate during or at the end of the cooling process. Solutions such as a crossblade or grid style outlet that make 4-8 cuts in 90° angles do not produce texturate of sufficient thinness. Furthermore, current solutions fail to produce cuts and fibers that resemble meat. And shapes that are produced do not replicate meat-like or natural shapes. Even curved outlet openings, that may include semi-or full circle outlet openings do not produce natural, round, circular or irregular shapes resembling meat. The proposed solutions overcome this problem.
The solutions presented herein will also provide a consistent cutting result at the cutting step(s) after the cooling die. By utilizing the systems described herein, which use plates to provide different combinations of rips, cuts, shapes to produce desired cutting and ripping shapes and patterns allowing the texturate to be cooked, hydrated, boiled, and/or cut more effectively after it leaves the cooling die, as well as provide a texturate with a fibery texture structure, and produce as well as enable the production of natural meat-sized chunks via post- cooling die cutting steps and processes. The proposed solutions may improve the product quality of the texturate by providing an adjustable number of rips on its surface to allow for an optimum level of moisture absorption from further cooking of the extrudate.
In preferred embodiments, neither the plate inserts nor the endplates use sharp blades or knives, but metallic edges with a width of 1-2 mm each. Because these edges are not sharp, the produced effect is opening of the surface of the extrudate or creating several openings in the extrudate. Furthermore, reducing gaps between plates, produces a tighter flow gap that the texturate must flow through, also creating openings in the surface of the texturate as it flows through the plate inserts. The tighter spaces created by the plates may also alter, or increase the overall pressure in the cooling die, the outlet portion of the cooling die, or the HME system as a whole. Thus, plates could also be added in a number, type, or thickness that could help alter, control, maintain or stabilize pressure at certain levels.
The current solutions propose implementing the cutting of the extrudate with plates, preferred embodiments utilize plate inserts attached to the outlet end portion of the cooling die via a connection adapter piece, which in many embodiments includes an internal plate insert system, or alternatively, in other embodiments an external endplate system (the general terms “plate” or “plates” refer to either plate inserts or endplates). The solutions presented in this document are applicable to all types of cooling dies including flat and/or round dies, of multiple sizes, with removable or non-removable cooling cores, single or multi-flow channels, and with or without connection(s) between the cooling core and the outer jacket as present in some in round annular cooling dies.
For most embodiments, various types and combinations of plates may be used by the systems and methods presented herein. Some plates are purposed for cutting, some are ripping plates, some are designed for shaping the extrudate. Each type of plate has a different function in relation to the texturate/extrudate. Cuts are primarily needed to allow the ingress of water in the cooking phase, rips mainly provide natural meat-like fibers in the extrudate, while shaping plates are designed to produce at the cooling die outlet or otherwise aid in the production at the after-cooling die cutting processes specific shapes and natural meat-like chunks, which may include specific shapes such as round, diamond, nugget-like, irregular, square based shapes, angular as well as other shapes that may be desired. One or more plates may be attached in different configurations, these may be of the same or of different types, modifiable based on the desired cuts, rips and shapes to be produced. In many embodiments more than one type of plates are attached to each other to produce different shapes, cuts and rips, the different combinations of plates allow the user to produce different results.
In several embodiments, the systems proposed provide an internal insert system, with an insert connection receptacle device (can be referred to as “insert connection device” or any of “connection adapter”, “connection adapter device”, “insert receptacle device” or “insert receptacle piece”) attached to the outlet end portion of a cooling die, or over it, and in some embodiments secured by a jacket chain, and/or screws, or any other connection system. In various embodiments the internal portion of the insert connection device in turn allows for connections to one or more plate inserts that may include cutting, ripping, or shaping plate inserts. The plate inserts may be attached to the insert connection device through one or more connection interfaces such as one or more of any of an elongated metallic insert piece, screw, bolt, locking chains, rod, locking rod, or other fasteners (collectively referred to herein as “attachment mechanism” or “connection interface”). The connection interface may be placed in an aperture that connects the insert connection device with one or more plates, potentially of various sizes, shapes, and types. The plate inserts may also couple slidably and sealably into the internal portion of the insert connection device. One or more insert plates may be placed together in series. These one or more insert plates may be sealably connected to each other, the outlet, or otherwise the outlet end of a cooling die. The plate inserts are smaller than the insert connection device and therefore usually sit inside the insert connection device. When attached to and/or over a portion of the end of the cooling die, the insert connection device may produce a compact internal space, with tighter gaps between the plate inserts, and between the plate inserts and the outlet of the outlet end of the cooling die, wherein the several plate inserts be attached to the insert connection device shape, cut and/or rip texturate flowing through the outlet end of the cooling die.
In some embodiments the insert connection device as well as the plate insert(s) may be connected to one or more motors that enable the switching out of one or more plates with other plate(s), and/or rotate the plates to achieve a desired combined shape, or alternatively to change the positions, order or configuration of one or more plate inserts, and in some embodiments, allow plates to quickly switch in and switch out with other different plate inserts during the running of the HME process. Because the HME process is continuously running, the switching and/or rotation of the plates must happen very quickly so that the process is not disrupted. For example, if two cutting plate inserts are connected to each other, with each plate insert capable of making 8 cuts, with the various orientations of each cutting plate insert, 16 separate cuts could be made. Further configurations could be made depending on the angle of rotation of each plate insert, that could provide texturate strings of different sizes. Different types of plate inserts attached to each other may make further variations to the produced string possible; the different combinations of plate types, the number of plates used as well as the different orientations, step joint, rotation angle, twists and/or rotations between different plates attached to each other can create several possible combinations of different numbers, shapes and types of cuts and/or rips and texturate shapes, for example a combination of multiple cooling die rip plate inserts similar to the type in
In many embodiments one or more motors, which in some embodiments, may have their control and function be automated, may cause the rotation of different plates into different combinations and orientations to provide for the variety of rips and cuts possible to cut the texturate into different sizes, shapes, and other forms. The motors may also add or remove different plates or types of plates from the current configuration to produce different and new combinations of shapes and sizes of excreted texturate, and with specific orientations to increase, add, or modify the number and type of cuts produced on the texturate.
In some embodiments, the plate inserts for the internal insert system may be removed during the cooling or HME process and/or replaced with other inserts or types of inserts. This may be done automatically, without human intervention or handling. In various embodiments, the internal plate inserts may also be rotated throughout the running HME process, this may be done by automation or manually. Even though the plates are all movable and rotatable, there is no risk of leakage of texturate, because the pressure at the outlet end of the cooling die nearly equals ambient pressure, i.e., an absolute pressure of around 1 bar.
Manual methods of rotating the plate inserts may include using an elongated member, wrench, key, tool, rod, hook or otherwise suitable tool (these collectively referred to as a “rotation tool”) to reach through an opening or aperture of the insert connection device to the plate insert. The plate insert may have sockets, grooves or apertures (collectively referred to herein as a “coupling socket” or “coupling sockets”) to allow placement, clasping, hooking, latching or otherwise coupling of the rotation tool to the plate insert. These coupling sockets may be open only on one side, the side where the tool couples to, to prevent the entry or flow of extrudate. The rotation tool may then be moved to one direction or rotated moving the coupled plate insert along with it. The plate insert may have different notches or specified preset positions or angles that indicate movement, produce sounds, subtle movements, clicks or vibrations (such as those of unlocking a safe) that may be felt by the user of the rotation tool when the plate insert is being rotated to a new position. The plate insert's position relative to the one or more other plates will produce a differently cut, ripped and/or shaped extrudate/texturate.
A plate insert may have gaps, apertures or holes (collectively referred to as “insertion gaps”) to allow the insertion of the rotation tool past the plate insert through the insertion gap to a coupling socket of a second plate insert behind the first plate insert. The rotation tool then may be moved or rotated to move either one or both of the plate inserts, depending on the number and types of rotation tools being utilized. This process can be repeated for as many plates as possible as long as there is an insertion gap allowing a user to reach into a specific plate's coupling socket, allowing the user to rotate one or more plate inserts individually, concurrently, or in sequence.
The pressure inside a cooling die is affected by the types and number of inserts and their position relative to the outlet of the die. Pressure in the outlet portion of the cooling die, which consequently affects the whole system including both the cooling die and the extruder, can be modified and altered based on removing, adding, or using specific or combinations of plate inserts. This means that when pressure is unstable in the cooling die, it may be altered, regulated, or corrected by adding or removing a number of cutting plate inserts that could momentarily increase pressure to create a correction feedback loop in the rest of the process, improving the final product quality of the texturate. While this does not directly affect the throughput of the HME process, or the flow rate of the texturate/extrudate, the speed or velocity of the texturate in at least the outlet end portion of a cooling die may increase. For example, adding multiple ripped cutting plates to or on top of, or in series with each other would have an effect of increasing the pressure and velocity in the cooling die due to reduction of gaps and space, with more plates added, the teeth of each cutting plate overlap further closing available gaps or remaining space.
In various embodiments the internal insert system includes one or more gears that are attached to one or more motors. The gears cause the rotation of each plate insert, either by directly being connected to each plate insert or being connected to a portion of each plate insert that allows controlled rotation to orient each plate to the desired position. This gear-motor system is in turn controlled by remote or direct connection and may be connected to and controlled by a microcontroller or other computing unit and/or device. This computing unit or microcontroller may also be pre-configured to provide different orientations/and or rotations or combinations of plate inserts as required based on the various factors that make up the HME (and cooling) process, these may include and are not limited to the total runtime, pressure, velocity of extrudate, and/or measured temperatures. In many embodiments, the pre-installed plate inserts are not only rotated against each other but also can be re-positioned or added to the configuration. One example could be that one or more plate inserts that are no longer required in the configuration are moved by the system out of the configuration and other plate inserts that are desired are added to the configuration into the specific desired position, with each insert able to be moved around in new positions, or into and/or out of the configuration, during process runtime, or alternatively after a pause has been initiated to allow the insert exchanges to occur. This automated movement in and out of the plates can occur with entry points or openings on the insert connection device which may be placed at the top, bottom or sides of the insert connection device, where plate inserts may be slid in and out replacing one another.
In several embodiments, control arms may be used to move plate inserts in and out of the insert connection device. In various embodiments, the system may also automatically adjust the fit between the inserts to ensure compactness and sealing. In some embodiments, controlling the cutting plates is done remotely. In various embodiments, sensors are deployed inside the cooling die, on the plates, and/or insert connection device to determine the position and/or orientation of each plate. These positions may be displayed to users on a display device, including as part of a control unit, a smart phone, laptop, tablet and the like whereby the functioning of each motor may be controlled by a user to orient and position each plate accordingly.
In several embodiments, an endplate cutting system is implemented whereby endplates are attached to or attached over the outlet of the cooling die. These endplates may be placed individually or placed in combination with each other in various configurations to produce a variety of shapes configurations and/or sizes of extrudate as it comes out the cooling die. Endplates may be removed and/or replaced with various other endplates and configurations. Endplates may also be rotated and/or movable. In various embodiments each endplate is connected to a servomotor that may be placed at the side of the cooling die. The servomotor may be controlled by a user to rotate and/or move each endplate. Endplates may also be rotated manually. Endplates may be fastened onto each other via one or more attachment mechanisms and by loosening the one or more screws, bolts, locking chains, fasteners, or other attachment mechanisms the endplates may be made movable and rotatable, allowing changes in their orientation and changes in the configurations between different plates to produce different extrudate patterns, shapes, cuts and rips. In various embodiments, the one or more screws, bolts, locking chains, other fasteners, and/or attachment mechanisms may be removed allowing removal and/or replacement of one or more endplates.
In several embodiments, both the plate inserts, as well as the adjustable endplates are also able to be switched during the HME process as it is running. This allows the production of new cuts, patterns or shapes of the texturate/extrudate, by switching one or more plate inserts and endplates with one or more other plate inserts or endplates, or alternatively modifying their order or configurations, this allows us to produce extrudate string of different shapes, patterns and cuts without having to stop the extruder and HME process to switch between the different plate inserts and/or endplates, as well as switching plates in and out. In many embodiments, the plates may be rotated via mechanical or automated means.
While the present technology is susceptible of embodiment in many different forms, there is shown in the drawings and will herein be described in detail several specific embodiments with the understanding that the present disclosure is to be considered as an exemplification of the principles of the present technology and is not intended to limit the technology to the embodiments illustrated.
Furthermore, for example, by using 5 or more rip plates together, and at varying orientations in relation to each other, a smaller flow gap 804 is formed, since the inner sides and outer sides of each cutting portion will not be aligned, making the sides (sharp edges/teeth) of the plates to overlap. This tighter gap may increase the pressure in the cooling die and/or other parts of the HME process. Adding or removing plates strategically may also allow control or alteration of the pressure formed in different parts of the cooling die as well as the other parts of the HME process. Insertion gap 807 provides access to the lower plate insert behind it by using a rotation tool and placing it through the insertion gap 807, allowing a user to rotate either the first rip plate insert 801 or other plate insert(s) behind it the tool may reaches. Coupling socket 808 can also be seen to allow coupling of the rotation tool to first rip plate insert 801 to rotate or move it. Both insertion gap 807 and coupling socket 808 can be placed on different areas on the plate inserts, whether closer to the center or further to the rim. There could also be more than one insertion gap 807 or coupling socket 808 on each plate insert. Some plate inserts may have one of insertion gap 807 or coupling socket 808, both, and some will have neither.
While specific embodiments of, and examples for, the system are described above for illustrative purposes, various equivalent modifications are possible within the scope of the system, as those skilled in the relevant art will recognize. For example, while processes or steps are presented in a given order, alternative embodiments may perform routines having steps in a different order, and some processes or steps may be deleted, moved, added, subdivided, combined, and/or modified to provide alternative or sub-combinations. Each of these processes or steps may be implemented in a variety of different ways. Also, while processes or steps are at times shown as being performed in series, these processes or steps may instead be performed in parallel or may be performed at different times.
The embodiments can be combined, other embodiments can be utilized, or structural, logical, and electrical changes can be made without departing from the scope of what is claimed. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope is defined by the appended claims and their equivalents. In this document, the terms “a” or “an” are used, as is common in patent documents, to include one or more than one. In this document, the term “or” is used to refer to a nonexclusive “or,” such that “A or B” includes “A but not B,” “B but not A,” and “A and B,” unless otherwise indicated. Furthermore, all publications, patents, and patent documents referred to in this document are incorporated by reference herein in their entirety, as though individually incorporated by reference. In the event of inconsistent usages between this document and those documents so incorporated by reference, the usage in the incorporated reference(s) should be considered supplementary to that of this document; for irreconcilable inconsistencies, the usage in this document controls.
The corresponding structures, materials, acts, and equivalents of all means or step plus function elements in the claims below are intended to include any structure, material, or act for performing the function in combination with other claimed elements as specifically claimed.
The various embodiments described above, are presented as examples only, and not as a limitation. The descriptions are not intended to limit the scope of the present technology to the forms set forth herein. To the contrary, the present descriptions are intended to cover such alternatives, modifications, and equivalents as may be included within the spirit and scope of the present technology as appreciated by one of ordinary skill in the art. Thus, the breadth and scope of a preferred embodiment should not be limited by any of the above-described exemplary embodiments.
This application claims the benefit of U.S. Provisional Application No. 63/133,034 titled “Multichannel Extrudate Cooling System” filed on Dec. 31, 2020. This application also claims the benefit of U.S. Provisional Application No. 63/175,904, titled “Adjustable Cooling Die End Portion Plates” filed on Apr. 16, 2021, both of which are incorporated by reference in their entirety.
Number | Date | Country | |
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63133034 | Dec 2020 | US | |
63175904 | Apr 2021 | US |