KR20180064668A - 3d printer for manufaturing food - Google Patents

Abstract

A 3D printer for manufacturing food according to an embodiment of the present invention comprises: a plurality of food material supply mechanisms in which a plurality of food materials are accommodated; an extrusion mechanism connected to the food material supply mechanisms to selectively extrude any one of the food material supply mechanisms; a nozzle mechanism connected to the extrusion mechanism to inject food materials extruded by the extrusion mechanism onto a printer bed; and a cooling mechanism connected to one side of the extrusion mechanism to cool the food materials extruded from the nozzle mechanism by providing cool air to the printer bed. Embodiments of the present invention provide the 3D printer for manufacturing food which can stably manufacture the food in a 3D printer manner using various kinds of food materials.

Description

3D PRINTER FOR MANUFATURING FOOD

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a 3D printer for food manufacturing, and more particularly, to a 3D printer for food manufacturing that can stably produce food using a 3D printer method using various kinds of foodstuffs.

In general, just as a 2D printer prints a picture or a picture, a 3D printer is a device that produces a three-dimensional solid object based on a previously entered design. The 2D printer is capable of moving only in the forward and backward directions (X-axis direction) and in the left-right direction (Y-axis direction) We create stereoscopic article based on 3D drawing which we preformed by exercise.

The above-described 3D printer is divided into a stacking type (additive type or rapid prototyping) method in which the layers are stacked one by one according to a method of forming a three-dimensional shape and a cutting type (computer numerically controlled piece) method in which large blocks are cut.

Here, the laminated type is a method of forming a three-dimensional shape by stacking layers of powder, plastic liquid, or plastic yarn in layers thinner than paper. The thinner the layer is, the more accurate the shape can be obtained and the coloring can proceed at the same time.

In addition, the cutting method is a method of cutting a large lump into pieces to produce a three-dimensional shape. There is an advantage that the finished product is more accurate than the laminated type, but it is disadvantageous in that it consumes a large amount of material, it is difficult to make a shape such as a cup inside, and coloring work must be separately performed.

3D printers were originally developed for the purpose of prototyping products before they were commercialized. However, it has developed at an early stage, which is confined to plastic materials, and has recently been expanded to include nylon and metal materials, and is entering commercialization in various fields as well as industrial prototypes.

Looking at the materials of 3D printers, plastic materials are the most popular material for 3D printers. However, in addition to plastic materials, various materials such as rubber, metal, and ceramics are being used in various industrial fields. In recent years, examples of using food materials such as chocolate have been introduced.

Looking at the application areas of 3D printers, 3D printers have traditionally been used in manufacturing industries such as aviation and automobiles, but recently they have been rapidly expanding their use. The most representative sectors are the medical, construction, retail, food and clothing industries.

In other words, medical field is one of the most actively adopting 3D printer technology, and it is used to make artificial ear or artificial organs including joints, teeth, skulls, and water. The food industry also uses 3D printers to make three-dimensional chocolates made of roses or human faces, or to make fast foods such as cookies or ramen.

As described above, since the utilization of the 3D printer has been increased recently and the cost efficiency has been greatly improved, it is in the spotlight as a next generation manufacturing technology in various industrial fields. As a result, the market for 3D printers is growing rapidly, and technological competition due to technology development of 3D printers is intensifying.

For example, Korean Utility Model Application No. 20-2015-0003372 (entitled "Sculptured Printed Food Using 3D Printer", published on 2015.09.14) discloses that foods of a certain size such as chocolate, bread, And a character or a 3D object is printed on the cut combined food using a 3D printer.

Korean Patent Laid-Open No. 10-2016-0009067 entitled " Apparatus, Method and System for Processing Food Using Laminated Three-Dimensional Printing Technology, published on Jan. 25, 2016) A 3D printer system that prints a product using a plurality of built-in materials is disclosed.

However, the 3D printer used in conventional food manufacturing has a disadvantage in that the process of manufacturing foods while changing various kinds of food materials is very complicated and the laminated structure is changed because the food materials do not harden quickly after being stacked on the printer bed . More specifically, conventional 3D printers for food manufacturing are not well-suited to the nature of the food, and if the diameter of the nozzle is enlarged to smooth the injection of food, the speed of curing after the injection of the food material becomes slower. Accordingly, the conventional 3D printer for food manufacturing has a disadvantage in that the manufacturing time of food is greatly increased. In addition, when the stacked height of the food is increased, the laminated structure of the food is broken or crushed due to the poorly- .

The embodiment of the present invention provides a 3D printer for food manufacturing that can stably produce food in a 3D printer manner using various kinds of foodstuffs.

In addition, the embodiment of the present invention provides a 3D printer for food manufacturing, which can quickly and easily perform an operation of changing the type of a food material by simply forming a structure for changing various kinds of food materials.

In addition, the embodiment of the present invention provides a 3D printer for food manufacturing, which can cool the extruded food material to the printer head by providing cool air to the printer head.

According to an embodiment of the present invention, there is provided a food processing system comprising: a plurality of food material supply mechanisms for containing a plurality of food materials; an extrusion mechanism connected to the food material supply mechanisms for selectively extruding food ingredients of any one of the food material supply mechanisms; And a cooling mechanism connected to one side of the extrusion mechanism to cool the food material injected from the nozzle mechanism by providing cool air to the printer bed A 3D printer for food manufacturing.

Therefore, in the present embodiment, since the extrusion mechanism selectively extrudes only the necessary ingredients from among the above-described food material supply mechanisms and injects them through the nozzle mechanism, the operation of manufacturing foods using various kinds of food materials is very quick and simple . In this embodiment, since the cooling mechanism provides a cool air to the printer bed to cool the foodstuff sprayed from the nozzle mechanism, the foodstuffs stacked on the printer bed can be cured very quickly and deformation of the foodstuff can be prevented Thereby improving the manufacturing speed of the 3D printer and shortening the manufacturing time of the food.

According to an aspect of the present invention, the food material feeding mechanisms may be detachably mounted to the extrusion mechanism to selectively supplement the ingredients.

According to an aspect of the present invention, the pushing mechanism includes a pushing mechanism main body formed to push out one of the food material feeding mechanisms, a pushing mechanism body disposed on one side of the pushing mechanism body, And a nozzle connected to the nozzle mechanism so as to supply the nozzle mechanism with a food material that is disposed on the other side of the extrusion mechanism body and is extruded by the extrusion mechanism body, And a connecting portion.

At least one of the food material connection portion and the nozzle connection portion may be rotatably or movably disposed in the extrusion mechanism body so as to connect any one of the food material supply mechanisms to the nozzle mechanism.

Here, the food material supply mechanisms may be disposed radially at a position spaced radially from the center of the food material connection portion, and the nozzle mechanism may be disposed at a position spaced apart from the center of the nozzle connection portion by a predetermined distance in the radial direction . The food material connecting portion and the nozzle connecting portion may be disposed in the extrusion mechanism main body so as to be opposed to each other with reference to the extrusion mechanism main body. At least one of the food material connection portion and the nozzle connection portion may be rotatably provided in the extrusion mechanism body.

According to an aspect of the present invention, the cooling mechanism includes: a cooler configured to cool the surrounding air; a blower disposed on one side of the cooler to supply air to the cooler to generate cool air; A cooling pipe disposed between the cooler and the extrusion mechanism so as to guide the cooling air to the printer head; and a discharge port disposed at one side of the extrusion mechanism to discharge the cool air guided along the cooling pipe to the printer head.

The ejection orifice may be formed on the side of the nozzle mechanism or in a shape surrounding the nozzle mechanism.

A cooling passage for guiding the cool air from the cooling pipe to the discharge port may be formed inside the extrusion mechanism. In addition, an extrusion passage for guiding the food material to the nozzle mechanism in the food material supply mechanism may be formed inside the extrusion mechanism.

The food material feeding mechanism may be provided with a food material heater for keeping the food material in a molten state. The extrusion mechanism may be provided with a temperature control unit for cooling a part of the extrusion passage using the cold air of the cool air passage so as to prevent the temperature of the food material from being heated to a preset temperature or higher.

Here, the temperature regulating unit may include a branch passage extending from the cold air passage so as to surround the outside of a part of the extrusion passage, and a cool air passage for controlling the inflow amount of the cold air flowing into the branch passage from the cold air passage, And a temperature control valve disposed at a connection portion of the passage.

The 3D printer for food manufacturing according to the embodiment of the present invention has a structure in which only necessary food materials among the food material supplying mechanisms are selectively extruded by the extruding mechanism and are injected through the nozzle mechanism so that various kinds of food materials are selectively supplied to the nozzle mechanism Can be formed in a very simple manner, and it is possible to perform a food material changing operation very quickly and easily in a 3D printer.

In addition, the 3D printer for food and beverage manufacturing according to the embodiment of the present invention has a structure in which the cool air of the cooling mechanism is provided to the printer bed to rapidly cool the food material injected from the nozzle mechanism, so that the food materials stacked on the printer bed can be cured very quickly And it is possible to prevent deformation and crushing of the laminated food material due to rapid curing of the food material injected from the nozzle mechanism. Therefore, in this embodiment, the manufacturing speed of the 3D printer can be improved, and the manufacturing time of the food can be greatly shortened.

Further, the 3D printer for food and beverage production according to the embodiment of the present invention is characterized in that a discharge port is formed on the side of the nozzle mechanism or a discharge port is formed so as to surround the nozzle mechanism, so that the shape of the discharge port is variously changed, The direction of the cold wind can be variously changed, and the shape of the ejection orifice can be appropriately adjusted according to the design conditions and conditions of the 3D printer for food manufacturing.

Further, since the 3D printer for food and beverage manufacturing according to the embodiment of the present invention is formed in such a structure that the cold air flowing along the cold air passage formed in the extrusion mechanism is branched into a part of the extrusion passage formed in the extrusion mechanism, the food material is set by the food material heater It is possible to prevent the temperature from exceeding the temperature. Therefore, it is possible to prevent the phenomenon that the ingredients are boiled or vaporized in the extrusion passage, and the problems caused by the boiling and vaporization of the ingredients can be prevented from damaging the 3D printer and defective supply of the ingredients.

1 is a configuration diagram illustrating a 3D printer for food manufacturing according to an embodiment of the present invention.
Fig. 2 is a view showing an example of the nozzle mechanism and the ejection opening shown in Fig. 1. Fig.
3 is a view showing another example of the nozzle mechanism and the discharge port shown in FIG.
4 is a schematic view showing a cross section taken along the line AA shown in Fig.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to or limited by the embodiments. Like reference symbols in the drawings denote like elements.

FIG. 1 is a view illustrating a 3D printer 100 for manufacturing food according to an exemplary embodiment of the present invention. FIG. 2 is a view illustrating an example of a nozzle mechanism 130 and a discharge port 148 shown in FIG. 1, 3 is a view showing another example of the nozzle mechanism 130 and the discharge port 148 shown in FIG. 4 is a schematic view showing a section taken along the line A-A shown in Fig.

Referring to FIG. 1, a 3D printer 100 for food manufacturing according to an embodiment of the present invention includes a food material supply mechanism 110, a pushing mechanism 120, a nozzle mechanism 130, and a cooling mechanism 140 .

The 3D printer 100 for food manufacturing according to an embodiment of the present invention is an apparatus for forming and manufacturing the food 10 using a food material F such as chocolate, jelly, sugar, etc. as a raw material. The above-mentioned food material (F) is characterized in that it is slow in curing speed as compared with plastic used as a main material of a general 3D printer, and also has a feature that a laminated structure is collapsed or crumbled .

On the other hand, in the present embodiment, the food material feeding mechanism 110, the pushing mechanism 120, and the nozzle mechanism 130 may be installed in a three-dimensional feeding mechanism (not shown). The above-mentioned three-dimensional feeding mechanism can feed the food material feeding mechanism 110, the pushing mechanism 120 and the nozzle mechanism 130 in three directions of X axis, Y axis and Z axis. In the feeding process, The food 10 can be manufactured by laminating the food materials F injected from the nozzle 130 in a three-dimensional shape. However, since the three-dimensional transport mechanism of the present embodiment can utilize all the conventional three-dimensional transport mechanisms used in a general 3D printer, a detailed description of the three-dimensional transport mechanism will be omitted.

Referring to FIGS. 1 and 4, a plurality of food ingredients supply mechanisms 110 may be provided to accommodate a plurality of ingredients. That is, in the present embodiment, a plurality of food ingredients F can be prepared according to the kind of the food of the food product 10 manufactured by the 3D printer 100 for food manufacturing, and the plurality of food ingredients F can be supplied to the food material supplying device 110 Lt; / RTI >

The food material supply mechanism 110 may be provided with a food material heater (not shown) for keeping the food material F in a molten state. The food material heater can increase the fluidity of the food material F by heating the food material F so that the extrusion performance of the food material F accommodated in the food material supply mechanism 110 can be sufficiently secured. However, the food material heater must appropriately adjust the temperature of the food material (F) so as to prevent the food material (F) from boiling or vaporizing.

Here, the food material feeding mechanisms 110 can be mounted removably to the extrusion mechanism 120 to selectively supplement the ingredients F. For example, the food material supply mechanisms 110 may be formed in a capsule shape to be mounted on and dismounted from the extrusion mechanism 120. Therefore, the food material supply mechanisms 110 can be mounted on the extrusion mechanism 120 while individually accommodating different food materials F, and the food material supply mechanism 110 can be mounted on the extrusion mechanism 120 by using the 3D printer 100 for food manufacturing, The food material supplying mechanism 110 may be removed from the extrusion mechanism 120 and then the food material F may be replenished and mounted on the extrusion mechanism 120 again.

In the present embodiment, the food material supply mechanisms 110 are formed in a capsule shape and are separately mounted and dismounted in the extrusion mechanism 120. However, the present invention is not limited to this and the design conditions and conditions of the 3D printer 100 for food manufacturing As shown in FIG. For example, the food material supply mechanisms 110 may be individually connected to supply tanks (not shown) supplying the ingredients F. The food material supply mechanism 110 and the supply tank may be connected by a tubular member such as a hose or a pipe. Therefore, the supply tank can continuously supply the food material F into the food material supply mechanism 110 through the tubular member.

1 and 4, the extrusion mechanism 120 is a device for selectively extruding any one of the food ingredients F from the food material supply mechanisms 110. The extrusion mechanism 120 may be connected to the food material supply mechanisms 110 in a communicative manner. For example, the pushing mechanism 120 may include a pushing mechanism body 122, a food material connecting portion 124, and a nozzle connecting portion 126.

The extrusion mechanism body 122 may be formed to extrude the food material F of any one of the food material supply mechanisms 110. Therefore, the extrusion mechanism main body 122 may be provided with an extrusion means (not shown) for extruding the food material F. [

The food material connection portion 124 may be formed to selectively supply the food material F of the food material supply mechanisms 110 to the extrusion mechanism body 122. The food material connection portion 124 may be disposed at one side of the extrusion mechanism body 122 and may be connected to the food material supply mechanisms 110. [

The nozzle connection portion 126 may be formed to provide the nozzle mechanism 130 with a food material F to be extruded by the extrusion mechanism main body 122. The nozzle connecting portion 126 may be disposed on the other side of the extrusion mechanism body 122 and may be connected to the nozzle mechanism 130. [

At least one of the food material connection portion 124 or the nozzle connection portion 126 is rotated by the pushing mechanism body 122 so that any one of the food material supply mechanisms 110 can be connected to the nozzle mechanism 130 Or movable. Hereinafter, in the present embodiment, it is described that the food material connection portion 124 is rotated, but the present invention is not limited thereto and may be variously modified according to the design conditions and conditions of the 3D printer 100 for food and beverage production. For example, unlike the present embodiment, in the structure in which only the nozzle connecting portion 126 is rotated or moved, or the food material connecting portion 124 and the nozzle connecting portion 126 are both rotated or moved Or may be provided in the extrusion mechanism body 122 in a structure.

When the food material supply unit 110 is provided in the extrusion mechanism body 122, only the food material supply unit 110 is rotated so that the food material supply units 110 are rotated by a single number of nozzle mechanisms 130 at the same time. Therefore, when the food material F needs to be changed in the process of manufacturing the food product 10 using the 3D printer 100 for food manufacturing, the food material supply mechanism 110, in which the other food materials are accommodated, To the nozzle mechanism (130).

For example, the foodstuff feeding mechanisms 110 may be arranged radially at a location spaced a predetermined distance radially from the center of the food material connection 124. [ The nozzle mechanism 130 may be disposed at a position spaced a predetermined distance in the radial direction from the center of the nozzle connecting portion 126. The food material connection portion 124 and the nozzle connection portion 126 may be disposed at the upper and lower portions of the extrusion mechanism body 122 so as to face each other with respect to the extrusion mechanism body 122. The food material connecting portion 124 may be rotatably provided on the upper portion of the extrusion mechanism body 122.

1 to 4, the nozzle mechanism 130 is a device for spraying the food material F, which is extruded by the extrusion mechanism 120, onto the printer bed 150. [ The nozzle mechanism 130 may be connected to the nozzle connection part 126 of the extrusion mechanism 120. A heater (not shown) may be installed at the end of the nozzle mechanism 130 to heat the food material F in order to secure the spraying performance of the food material F. However, since the heater provided at the end of the nozzle mechanism 130 is not directly related to the technical idea of the present embodiment, the description of the heater will be omitted for convenience of explanation.

1 to 4, the cooling mechanism 140 is a device for rapidly cooling the food material F ejected from the nozzle mechanism 130 by providing cool air C to the printer bed 150. The cooling mechanism 140 may be connected to one side of the extrusion mechanism 120. For example, the cooling mechanism 140 may include a cooler 142, a blower 144, a cooling pipe 146, and a discharge port 148.

The cooler 142 may be configured to cool ambient air. That is, the cooler 142 is a conventional air cooling device composed of a compressor, an inflator, an evaporator, and a condenser.

The blower 144 is a device for generating air by supplying air to the cooler 142. The blower 144 may be disposed on one side of the cooler 142. The cold air C cooled by the cooler 142 by the blowing pressure of the blower 144 may be discharged through the discharge tube 148 after flowing through the cooling tube 146. [

The cooling pipe 146 is a member for guiding the cool air from the cooler 142 to the extrusion mechanism 120. The cooling pipe 146 may be disposed between the cooler 142 and the extrusion mechanism 120. For example, the cooling pipe 146 may be formed of a hose or pipe coated with a heat insulating material, and may be formed of a material having excellent flexibility.

The discharge port 148 is a member for discharging the cool air C guided to the extrusion mechanism 120 along the cooling pipe 146 to the printer bed 150. The discharge port 148 may be disposed below the extrusion mechanism 120. The discharge port 148 may be formed adjacent to the nozzle mechanism 130 or may surround the nozzle mechanism 130.

For example, FIGS. 1, 2, and 4 show a structure in which the discharge port 148 is disposed at an eccentric position beside the nozzle mechanism 130. 1, 2, and 4, when the discharge port 148 is formed, the passage through which the cold air C passes can be formed very simply inside the extrusion mechanism 120, The production time and production cost of the 3D printer 100 can be reduced.

As another example, FIG. 3 shows a structure in which the discharge ports 149 are arranged to surround the periphery of the nozzle mechanism 132. At this time, the nozzle mechanism 132 may be disposed at the center of the nozzle connection portion 126, and the discharge port 149 may be formed in a ring shape at the center of the nozzle connection portion 126 so as to surround the nozzle mechanism 132 have. 3, the cool air C can be uniformly transferred to the food material F sprayed from the nozzle mechanism 132, and thereby the food material stacked on the printer bed 150 (F) can be more effectively cured. Therefore, the manufacturing time for manufacturing the food 10 by the 3D printer 100 for food manufacturing can be reduced, and the deformation and collapse of the food F can be prevented in advance.

4, a cool air passage 160 for guiding cool air C to the discharge opening 148 in the cooling pipe 146 may be formed in the extrusion mechanism 120, and a food material supply mechanism 110 may be formed with an extrusion passage 162 for guiding the food material F to the nozzle mechanism 130. The cold air passage 160 and the extrusion passage 162 may be fixed to the extrusion mechanism body 122 so that even when the nozzle connection portion 126 or the food material connection portion 124 is moved or rotated, 160 and the position of the extrusion passage 162 can be kept constant in the extrusion mechanism main body 122.

Both ends of the cold air passage 160 may be maintained connected to the cooling pipe 146 and the discharge port 148 when the food material connection portion 124 rotates. The lower end of the extrusion passage 162 may be maintained connected to the nozzle mechanism 130 during rotation of the food material connection portion 124. The upper end of the extrusion passage 162 may be connected to the nozzle mechanism 130 when the food material connection portion 124 rotates. May be selectively connected to the ends of the instruments (110).

4, the extrusion mechanism 120 may be provided with a temperature control unit 164 for preventing the temperature of the food material F supplied to the nozzle mechanism 130 from being heated to a preset temperature or higher. The temperature regulator 164 may be configured to cool a portion of the extrusion passage 162 using the cold air C of the cold air passage 160.

For example, the temperature regulating section 164 may include a branch passage 166 and a temperature control valve 168. [ The branch passage 166 may be formed so as to enclose a part of the extrusion passage 162 as a flow passage of the cold air C branched from the cold air passage 160. The temperature control valve 168 is a valve for controlling the inflow amount of the cool air C flowing into the branch passage 166 from the cold air passage 160 and is disposed at a connection portion between the cold air passage 160 and the branch passage 166 . In the present embodiment, the temperature control valve 168 is disposed on the inlet of the branch passage 166 to regulate the flow and the inflow amount of the cool air C flowing into the inlet of the branch passage 166, The check valve 169 is disposed on the outlet of the branch passage 166 to prevent the inflow of the cold air C to the outlet of the branch passage 166. [

The temperature regulator 164 according to the present embodiment may further include a temperature sensor (not shown) for measuring the temperature of the food F. The temperature sensor can be placed on the flow path of the food material F. The flow path of the above-described food material F includes an internal path of the extrusion path 162 and the nozzle mechanism 130. [ Accordingly, by properly operating the temperature controller 164 and the heater through the sensed value of the temperature sensor, the temperature of the food material F flowing into the nozzle mechanism 130 can be maintained at an appropriate temperature.

Operation and effect of the 3D printer 100 for food manufacturing according to an embodiment of the present invention will be described as follows.

First, the various kinds of food materials F necessary for manufacturing the food 10 are individually filled in the food material supply mechanisms 110. Then, the food material supplying mechanisms 110 are mounted on the food material connecting portion 124 of the extrusion mechanism 120.

When the preparation of the food material supply units 110 is completed as described above, the 3D printer 100 for food manufacturing is operated.

The food material connecting portion 124 appropriately rotates to communicate any one of the food material feeding mechanisms 110 to the nozzle mechanism 130 and the extrusion mechanism 120 is operated to feed the food material F ) In the direction of the nozzle mechanism (130). The food material F of the food material feeding mechanism 110 flows into the nozzle mechanism 130 along the pushing passage 162 of the pushing mechanism body 122. [

The nozzle mechanism 130 injects the ingredients F of the food material supply mechanism 110 into the printer bed 150.

At this time, if the three-dimensional feeding mechanism feeds the nozzle mechanism 130 three-dimensionally according to the manufacturing blueprint of the food 10, the food F is stacked in the three-dimensional form on the printer bed 150, Dimensional shape.

As described above, when the nozzle mechanism 130 stacks the food material F on the printer bed 150, the cooling mechanism 140 is operated to rapidly cure the food material F stacked on the printer bed 150 .

When the cooling mechanism 140 is operated as described above, the blower 144 operates to blow the outside air to the cooler 142, and the cooler 142 operates to cool the air introduced by the blower 144. The cooler 142 and the blower 144 generate the cool air C and the cool air C flows along the cooling pipe 146 to the extrusion mechanism 120 to the blowing pressure of the blower 144. [

The cold air C flowing into the extrusion mechanism 120 flows along the cold air passage 160 of the extrusion mechanism body 122 and then flows through the discharge port 148 provided in the extrusion mechanism 120 to the printer bed 150).

2 and 3, if the shape, the number, and the position of the discharge port 148 are appropriately changed, the cooling efficiency of the cold air C can be controlled in accordance with the design conditions and conditions of the 3D printer 100 for food manufacturing It can be miniaturized.

Therefore, in this embodiment, the coolant C discharged to the discharge port 148 cools the foodstuff F stacked on the printer bed 150 to rapidly cure the foodstuff F. The fast curing action of the above-mentioned food material F is advantageous in that the food material F is more firmly stacked and the deformation and crushing of the stacked food material F is prevented in advance, The operating time of the 3D printer 100 for food manufacturing is shortened.

On the other hand, the food material F passes through the food material supply mechanism 110, the extrusion passage 162, and the nozzle mechanism 130 in a molten state. To this end, a separate heater appropriately heats the ingredients F.

When the food material F is heated and melted as described above, the fluidity of the food material F is improved and the extrusion performance of the food material F is improved. However, when the food material F is heated to a set temperature or higher, there arises a problem that the food material F boils or vaporizes inside the food material feeding mechanism 110, the pushing-out passage 162 and the nozzle mechanism 130, The food material F stacked on the bed 150 is also easily pressed or crushed and the laminated structure is severely deformed or damaged.

Therefore, the food material F adjusts the temperature in the extrusion passage 162 and the nozzle mechanism 130 within a suitable range by using the heater and the temperature control unit 164.

When the temperature control valve 168 and the check valve 169 of the temperature regulator 164 are opened at the same time, a part of the cold air C in the cold air passage 160 flows into the inside of the branch passage 166 The cold air C flowing into the branch passage 166 is heat-exchanged with a part of the pushing-out passage 162 and the cold air C exchanged with the pushing-out passage 162 is transferred from the branch passage 166 to the cold air passage 160 And is recovered again.

At this time, the food material F is heat-exchanged with the branch passage 166 in the course of passing through a part of the extrusion passage 162, and is cooled to an appropriate temperature.

On the other hand, when both the temperature control valve 168 and the check valve 169 of the temperature regulating part 164 are shielded, the cool air C in the cold air passage 160 does not flow into the inside of the branch passage 166, Heat exchange between the passage 166 and the pushing-out passage 162 becomes impossible, thereby making it impossible to lower the temperature by cooling the food F.

Although the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, And various modifications and changes may be made thereto without departing from the scope of the present invention. Accordingly, the spirit of the present invention should not be construed as being limited to the embodiments described, and all of the equivalents or equivalents of the claims, as well as the following claims, belong to the scope of the present invention .

10: Food
100: 3D printer for food production
110: Food Ingredient
120: extrusion mechanism
122: extrusion mechanism body
124: Food ingredient connection
126: nozzle connection
130: nozzle mechanism
140: cooling mechanism
150: printer bed
F: Food materials
C: Cold wind

Claims (10)

A plurality of food material supply mechanisms in which a plurality of food materials are accommodated;
An extrusion mechanism connected to the food material supply mechanisms for selectively extruding any one of the food material supply mechanisms;
A nozzle mechanism connected to the extrusion mechanism to inject the food material extruded by the extrusion mechanism onto the printer bed; And
A cooling mechanism connected to one side of the extrusion mechanism to cool the food material injected from the nozzle mechanism by providing cool air to the printer bed;
And a third printer for food production.
The method according to claim 1,
Wherein the food material supply mechanisms are mounted to and detachable from the extrusion mechanism to selectively supplement the ingredients.
The method according to claim 1,
The above-
A pushing mechanism body formed to push out one of the food ingredients;
A food material connection portion disposed at one side of the extrusion mechanism main body and connected to the food material supply mechanisms to selectively supply the ingredients of the food material supply mechanisms to the extrusion mechanism main body; And
A nozzle connecting portion disposed on the other side of the extrusion mechanism main body and connected to the nozzle mechanism so as to provide a food material to be extruded by the extrusion mechanism main body to the nozzle mechanism;
(3).
The method of claim 3,
Wherein at least one of the food material connection portion and the nozzle connection portion is rotatably or movably disposed in the extrusion mechanism body so as to connect any one of the food material supply mechanisms to the nozzle mechanism.
5. The method of claim 4,
Wherein the food material supply mechanisms are disposed radially at a position spaced radially from the center of the food material connection portion, the nozzle mechanism is disposed at a position spaced apart from the center of the nozzle connection portion by a predetermined distance in the radial direction,
Wherein the food material connection portion and the nozzle connection portion are disposed in the extrusion mechanism body so as to face each other with reference to the extrusion mechanism body, and at least one of the food material connection portion and the nozzle connection portion is rotatably provided in the extrusion mechanism body. printer.
6. The method according to any one of claims 1 to 5,
The cooling mechanism includes:
A cooler configured to cool the surrounding air;
A blower disposed at one side of the cooler to supply air to the cooler to generate cool air;
A cooling pipe disposed between the cooler and the extrusion mechanism to guide the cool air from the cooler to the extrusion mechanism; And
A discharge port disposed at one side of the extrusion mechanism to discharge the cool air guided along the cooling pipe to the printer head;
(3).
The method according to claim 6,
Wherein the ejection orifice is formed on the side of the nozzle mechanism or in a shape surrounding the nozzle mechanism.
The method according to claim 6,
Wherein a cool air passage for guiding the cool air to the discharge port is formed in the cooling pipe inside the extrusion mechanism and an extrusion passage for guiding the food material is formed in the food material supply mechanism by the nozzle mechanism. printer.
9. The method of claim 8,
The food material supply mechanism is provided with a food material heater for keeping the food material in a molten state,
Wherein the extrusion mechanism is provided with a temperature regulator for cooling a part of the extrusion passage by using the cold air of the cool air passage so as to prevent the temperature of the food material from being heated to a preset temperature or higher.
10. The method of claim 9,
The temperature controller may include:
A branch passage branched from the cold air passage so as to surround an outer side of a part of the extrusion passage; And
A temperature control valve disposed at a connection portion between the cold air passage and the branch passage to control an inflow amount of the cold air flowing into the branch passage from the cold air passage;
(3).

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