KR20190000027A - Roasting device - Google Patents

Abstract

The present invention relates to a coffee bean roasting apparatus for roasting coffee fruits, that is, coffee beans to brew coffee. More particularly, the apparatus of the present invention comprises: a body; a roaster provided in the body and heating and roasting the coffee beans introduced; and a cooling unit for cooling the roasted coffee beans. The roaster is further provided with a screw member made up of three screw blades, and the coffee beans are stirred and roasted so that a high heat quantity is evenly distributed to the coffee beans. As a result, coffee with the highest quality taste and flavor can be produced. As a burner heats the roaster by getting close to the roaster, the inside and outside of the coffee beans are roasted evenly.

Description

[0001] ROASTING DEVICE [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a coffee roasting apparatus for roasting coffee beans, that is, roasting coffee beans, and more particularly, to a roasting machine for roasting coffee roasting, Wherein the roaster further comprises a screw member made up of three screw blades, and the roasted coffee beans are supplied with a high heat quantity evenly to the beans to produce coffee having the highest quality taste and flavor, And the roaster is brought close to the roaster so that the roaster is roasted.

The coffee roaster used to roast the coffee is a direct roasting method in which the drum is directly received by the drum to roast the coffee, an indirect heating method in which coffee is wrapped by the indirect heat by constituting a blocking plate between the heat source and the drum, There is a hot air method in which the drum is heated to roast the coffee.

In the case of the flame-directing method, since a heat source such as a burner is directly transferred to the drum in which the coffee is received, the temperature of the drum is suddenly heated so that the coffee is burnt before being roasted, There is a problem in that the heat transfer between the outer coffee to be delivered and the inner coffee to which the heat source is not transferred is different and the coffee is not roasted properly. Further, since the flame which is a heat source directly touches the surface of the drum containing the coffee beans, even if the flame of the flame supply device is slightly increased or decreased, the roasting temperature of the coffee is easily raised or lowered and it is not easy to control the roasting temperature of the coffee beans The taste and aroma can not be maintained constantly. Therefore, there is a problem that a highly skilled engineer can not maintain a certain taste and aroma when roasting the same coffee beans.

Also, in the case of the indirect heat method or the hot air method, indirect heat transmitted to the drum causes a delay in warming up the drum, resulting in a drastic decrease in thermal efficiency, a low temperature inside the drum, There is a problem that taste and fragrance are dropped.

Looking at the domestic and foreign technologies, a coffee roaster disclosed in Japanese Patent Laid-Open No. 10-2009-0055112 has been developed,

A cylindrical combustion chamber having a cylindrical shape and having an opening at one side thereof and burning a flame supplied to a flame inlet formed at a lower portion thereof; a support frame for supporting the combustion chamber; A cover plate fixedly coupled to the opening of the combustion chamber and the support frame and having an inlet and an outlet at a lower position on the upper portion of the open region of the roasting chamber; An inlet / outlet tube for injecting coffee powder falling into the roasting chamber and discharging the combustion gas discharged from the roasting chamber, and a flue opening / closing part having a funnel shape and extending at one side of the inlet tube formed at the lower part, Outlet tube, and the received coffee beans are introduced into the top of the inlet / A roasting motor coupled to the support frame and rotated by a power supply to rotate the roasting chamber; a roasting chamber connected to the roasting chamber to rotate the roasting chamber; And a roasting chamber air conditioner for horizontally moving the rotary shaft of the air conditioner.

In this case, since the roasting chamber in which the coffee is received and roasted is composed of a simple drum type and rotated in one direction by the roasting mold, the coffee contained in the roasting chamber is not uniformly stirred, There is a problem.

In addition, since the heat source flowing through the combustion chamber is indirectly transferred to the roasting chamber formed in the combustion chamber, there is a problem that the roasting time of the coffee is shortened by a small heat source and the thermal efficiency is greatly deteriorated.

Furthermore, since the roasted coffee can not be quickly discharged to the outside, rapid cooling of the roasted coffee is difficult due to frying, so that the inherent taste and aroma of the coffee can not be maintained properly.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art,

The roaster is provided with three screw blades, and the roasting temperature difference is reduced to 3 degrees or less by stirring the inserted beans, and the surface and the inside of the coffee are evenly distributed Roasted coffee beans, roasted coffee beans, roasted coffee beans, roasted coffee beans, roasted coffee beans, and roasted coffee beans.

In addition, the roasted bean is discharged through the cooling unit, but the cooling is performed quickly so that the taste and flavor of the bean can be maintained, and the change of the color of the bean according to the temperature and time, The present invention provides a roasting apparatus for roasting a coffee bean.

In order to achieve the above object, the present invention provides a bean root roasting apparatus comprising:

A main body having a feed hopper for feeding a bean;

A roaster provided in the main body and roasting the charged beans heated;

A cooling unit for cooling the roasted beans;

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The roaster includes a stirring member which stirs the charged beans while heating the stirring rod. The stirring member is provided with a screw member composed of first to third screw blades, and stirs the charged beans through three screw blades do.

As described above, by introducing three screw blades into the roaster, the roasting temperature deviation can be reduced to 3 degrees or less, the thermal efficiency can be improved by 5 degrees or more through the variable-volume type burner, It maintains a uniform temperature distribution, and evenly supplied high-calorie heat to the beans, thereby enabling the production of coffee beans having the highest quality taste and aroma.

Also, by introducing a vortex member into the cooling unit, the air flow generates a turbulent flow to increase the convective heat transfer coefficient of the air flow, thereby rapidly cooling the coffee bean, thereby maintaining the taste and aroma of the coffee,

It is possible to improve the thermal efficiency of the system to realize electric energy saving, and to improve the quality and productivity.

1 is a perspective view of a bean rooting apparatus according to the present invention;
Figure 2 is an enlarged view of the roaster of the bean-
Figure 3 is an enlarged view of the cooling unit of the bean-
Figure 4 is a partial enlarged view of the bean-
5 is a view showing a modification of the bean rooting apparatus according to the present invention

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the accompanying drawings.

While the present invention has been described in connection with certain embodiments, it is obvious that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

In the drawings, the same reference numerals are used for the same reference numerals, and in particular, the numerals of the tens and the digits of the digits, the digits of the tens, the digits of the digits and the alphabets are the same, Members referred to by reference numerals can be identified as members corresponding to these standards.

In the drawings, the components are expressed by exaggeratingly larger (or thicker) or smaller (or thinner) in size or thickness in consideration of the convenience of understanding, etc. However, It should not be.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the term " comprising " or " consisting of ", or the like, refers to the presence of a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

1 to 4, a bean rooting apparatus A according to the present invention includes a main body 10, a roaster 20 provided in the main body 10, and a cooling unit 30 consist of.

First, the main body 10 is provided with a feed hopper 11 for feeding a bean to be roasted. On the other hand, as shown in FIG. 4, the feed hopper 11 is provided with a control It is preferable that the valve 111 is provided.

As shown in FIGS. 1 and 4, the main body 10 is provided with a roaster 20 for roasting the loaded beans by applying heat thereto, and a cooling unit 30 for cooling the roasted beans, The main body 10 is provided with a discharge member 12 through which roasted beans are discharged. The discharge member 12 is provided with a discharge lever 121 to discharge the beans As shown in FIG.

In addition, it is preferable that a control unit 13 is provided at one side of the main body 10 to control all of the operations.

First, the coffee roaster 20 used for roasting the coffee beans has a direct-burning method in which a drum is directly received by a drum to roast the coffee, an indirect heating method in which a blocking plate is formed between the heat source and the drum, There is a hot air method in which coffee is roasted by warming the drum using air heated by a heat source.

1. Conventional Roaster (Drumroaster) 20

Most of the common coffee bean roasters (20) used in ordinary coffee shops are laid out with cylindrical drums laid horizontally. And is distributed by the surface of the drum heated by the gas or oil burner 14 and the heated internal air. When the drum is rotated, the coffee beans are evenly mixed, roasted, and roasted. In the case of such a direct flame method, since the heat source such as the burner 14 is directly transferred to the drum in which the coffee is received, the temperature of the drum is suddenly heated, and the coffee is burnt before being roasted, There is a problem in that the heat transfer between the outer coffee to which the heat source is transferred and the inner coffee to which the heat source is not transferred is different and the coffee is not roasted properly. Further, since the flame which is a heat source directly touches the surface of the drum containing the coffee beans, even if the flame of the flame supply device is slightly increased or decreased, the roasting temperature of the coffee is easily raised or lowered and it is not easy to control the roasting temperature of the coffee beans The taste and aroma can not be maintained constantly. Therefore, there is a problem that a highly skilled engineer can not maintain a certain taste and aroma when roasting the same coffee beans. However, the roasting time is shortened and the roasting energy is less.

2. Semi-Rotating Fluidized Roaster (20)

Deformation of the roaster 20 causes the drum body to be perforated so that hot combustion gases pass through the interior of the drum. It uses a fan or a motor to blow it in a forced manner, and recycles the combustion gas at a high temperature to increase thermal efficiency. In the case of the semi-hot air type, indirect heat transmitted to the drum delays the time for warming the drum, resulting in a drastic decrease in the heat efficiency, and a low temperature in the drum, . However, the temperature variation inside the drum is reduced, so that coffee beans are roasted uniformly.

3. Rotating Fluidized Bed Roaster (20)

 It is a method to blow hot air of high temperature and distribute. Because of high temperature high-speed hot air, coffee beans are mixed in a floating state in the air, and they can be roasted more uniformly than the direct-firing type because they are roasted. Since the power distribution room and the cooling room are separately provided, there is an advantage that the heat loss is small.

The present invention is characterized in that the burner 14 is provided in the main body 10 and the burner 14 is provided close to the roaster 20 so that the heat generated by the burner 14 flows to the outer surface of the roaster 20 Is indirectly heated.

Further, the burner 14 is a variable-volume type burner 14 capable of adjusting the air volume, and is configured to be able to maintain and operate a uniform temperature during roasting.

Roasting is a "time temperature dependent process" technology that relies on the roasting and the physical transformation of the coffee bean, along with the physical transformation of the coffee bean, begins and ends with the roasting. Water evaporates, carbon dioxide is produced and released, Several volatile flavor components are created and lost: the volume increases by about 2 times and the density of the coffee bean tissue becomes porosity, reducing the density to less than half. Coffee components that decrease in proportion to the degree of roasting include trigoneline ), And chlorogenic acid, and the content of these is measured to determine the degree of power distribution. Thus, the roasting time and temperature greatly affect the taste, aroma and quality of coffee. By providing the variable-volume afterburner 14, the temperature and the time of roasting according to the time and the color of the bean according to the degree of roasting Angry so that they can be uniformly maintained.

The roaster 20 for stirring and heating the charged beans is also provided in the bean rooting apparatus A according to the present invention.

1 and 2, the roaster 20 includes a stirrer 21 which stirs the charged beans while heating the bean. The stirrer 21 is provided with first to third The screw member 21A including the screw blades 211, 212 and 213 is provided so as to stir the inserted beans through three screw blades. At this time, the first screw blades 211 are rotated by the screw member 21A, And the second and third screw vanes 212 and 213 are formed on the inner side of the stirring member 21 so as to mix the beans evenly.

More specifically, the roaster 20 is provided at its one side with a driving member 23 for rotating a screw member 21A provided inside the agitating member 21, and the driving member 23 is fixed to the screw member 21 The stirrer 21 is made of a material having a high thermal conductivity and is heated by the heat supplied by the burner 14 so as to mix the beans fed into the inside It is made to roast.

Further, in order to prevent overheating, a plurality of through holes 215 are formed on one side of the agitating member 21, but the scope of the right should not be limited.

In addition, the present invention is characterized in that the first to third screw blades 211, 212, and 213 are each a triple screw type in which each screw blade is formed in a spiral shape.

In general, the roasting principle has a great effect on heat transfer. The heat supplied by conduction, convection, and radiation is the reaction that occurs when heating the beans. The roasting step maintains the heat flow uniformly in the roaster 20 after the preheating for 20 minutes and develops it to be the optimum condition for the introduction of the beans. The preheating is carried out by slowly increasing the temperature from 210 ° C to 210 ° C. At the beginning of roasting, the endothermic reaction occurs, and the temperature of the bean itself gradually increases so that the moisture contained in the bean is evaporated. The temperature of the bean reaches its own temperature of 190 oC, and an exothermic reaction that emits heat at such a temperature occurs so that the internal temperature rapidly increases, thereby generating as many fragrance components of the bean as possible. In the present invention, a uniform temperature distribution is maintained in the inner space through the triple spiral screw type roaster (20), and a high-temperature heat is uniformly supplied to the bean so that the beans having the highest quality taste and aroma are produced. In addition, the triple spiral screw type roaster unit facilitates agitating of the roasted beans, and the roasted beans are rapidly discharged to the cooling unit 30 through the discharge member 12 formed on the outer side of the drum, So that the taste and flavor of the bean can be maintained.

Further, the present invention further includes a cooling unit 30 for cooling the roasted roasted coffee beans faster than the roasted coffee beans are discharged through the discharge member 12.

1 and 3, the cooling unit 30 includes a cooling member 31 having a collecting part 311 for collecting the cooled beans, A cooling part 313 is formed at the upper part of the cooling part 31 so that the bean discharged through the discharge part 12 is seated and cooled and the bottom part of the cooling part 313 emits heat A plurality of cooling holes 313A are provided.

The cooling unit 30 of the present invention further includes a vortex member 33 consisting of a first vortex blade 331 and a second vortex blade 333 which are provided so as to overlap with each other in order to induce faster cooling, The first vortex 331 and the second vortex 333 form a spiral shape bent in opposite directions to each other. When the vortex member 33 rotates, it forms a vortex in the air of the cooling part 313, It is possible to more effectively cool the heat exchanger.

Specifically, the first vortex flow 331 and the second vortex flow flow 333 generate a turbulent flow, thereby increasing the convective heat transfer coefficient of the air flow and inducing rapid cooling of the beans.

Fig. 5 shows a modification of the roasting apparatus A according to the present invention,

The roasting operation of the bean rooting apparatus A according to the present invention may cause vibration and noise, which may cause inconvenience to the user, and may cause smooth stirring of the bean owing to vibration May occur.

Therefore, in order to solve this problem, the present invention further includes buffer means at the lower portion of the main body 10 to prevent generated vibration from being transmitted to the main body 10 when the main body 10 is fixed to the mounting portion.

More specifically, the buffering means includes:

A bottom plate 41 fixed to the mounting portion,

A support plate 42 provided on the bottom plate 41 at a predetermined interval and provided with the main body 10 on an upper surface thereof,

A buffer spring 43 disposed between the bottom plate 41 and the support plate 42,

A transmitting member 44 installed on the top surface of the bottom plate 41 and having both ends swung about the swing shaft 44b,

A first elevating member 45 whose upper end is connected to a lower surface of the bottom plate 41 and whose lower end is hinged to one end of the transmitting member 44,

And a second elevating member 46 having an upper end spaced apart from the bottom plate 41 by a predetermined distance and a lower end hinged to the other end of the transmitting member 44.

More specifically, the bottom plate 41 and the support plate 42 may be plate members of the same size, which are spaced apart from each other by a predetermined distance, and may further include a housing for sealing the side openings.

A buffer spring 43 is provided between the bottom plate 41 and the support plate 42 to allow the support plate 42 to be displaced upward and downward.

The transmitting member 44 is coupled to the supporting portion 44a fixed to the upper surface of the bottom plate 41 so as to be rotatable in the left and right direction with a swing shaft 44b.

Although not shown in the drawing, the transmitting member 44 is of a telescopic type and has a length-adjustable shape at both ends.

The first elevating member 45 is connected to the lower surface of the supporting plate 42 and is raised and lowered together with the supporting plate 42. The second elevating member 46 is vertically arranged on the upper surface of the bottom plate 41, And is raised and lowered by the guide 47,

One end of the transmitting member 44 and the lower end of the first elevating member 45 and the other end of the transmitting member 44 and the lower end of the second elevating member 46 are coupled with the pivot shaft 45a, The angle between the first elevating member 45, the transmitting member 44, and the second elevating member 46 is adjusted.

The shock absorber 40S is configured such that when the main body 10 on the support plate 42 vibrates or shakes, the support plate 42 vertically moves up and down together and the first and second lifting members 45, The second elevating member 46 ascends and descends in the direction opposite to the first elevating member 45 by the seesaw motion of the second elevating member 44.

Therefore, when the support plate 42 descends, the second lift member 46 rises and the upper end of the second lift member 46 contacts the lower surface of the support plate 42,

Conversely, when the support plate 42 rises, the second lift member 46 descends and the lower end (the pivot shaft 46a) of the second lift member 46 contacts the upper surface of the bottom plate 41,

As a result, the elastic force of the buffer spring 43 absorbs the vibration or fluctuation of the main body 10, and the second lift member 46 contacting the support plate 42 or the bottom plate 41 is supported by the support plate 42 By stopping the lifting and lowering, the vibration or fluctuation of the main body 10, which can be increased by the resilience of the buffer spring 43, is suppressed, and the buffering and supporting functions of the main body 10 are simultaneously generated.

In other words, the vibration or vibration of the main body 10 can be absorbed only by the cushioning spring 43. However, when the vibration or shaking is large, the elastic force generated when the cushioning spring 43 is stretched increases, The present invention can solve the above-mentioned problem by stopping the operation through the second lifting member 46 together with shock absorption through the buffer spring 43. [

The buffering means 40S having the above-described configuration is provided on both side surfaces opposite to each other in the pedestal 40 (in the figure, the buffering means 40S is provided at each corner of the pedestal 40)

The buffering means 40S includes an interlocking member 48 connecting the upper ends of the respective second lifting members 46 in the horizontal direction so that the vibration or shaking of the body 10 is directed to one side, The lifting members 45 and 46 of the both side shock absorbing means 40S simultaneously operate in conjunction with each other so that the shock absorbing and stopping can be performed while balancing the right and left of the supporting plate 42 .

That is, when the vibration or shaking of the main body 10 is caused to occur on one side, the main body 10 may be overturned while being shifted toward one side of the center of gravity of the main body 10, ,

The second side elevating member 46 on the opposite side is moved upward and downward in the same direction due to the interlocking member 48 when the second side elevating member 46 having one side oscillated or shaken is moved up and down, The other side end of the support plate 42 having a small height varying width is raised and lowered in the same manner as one side of the opposite side so that buffering and stopping operations of the buffering means 40S are performed while the entire support plate 42 is balanced right and left, Can be maintained in a horizontal state without being deflected to one side, thereby solving the above problems.

A shock absorber 48a made of a flexible material such as rubber or silicon is provided on the upper and lower ends of the second lifting member 46 and on the upper surface of the interlocking member 48, Reduction and a shock absorbing function.

While the present invention has been particularly shown and described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. And substitutions are to be construed as falling within the scope of protection of the present invention.

A: bean rooting apparatus 10: main body
11: Feed hopper 111: Regulating valve
12: exhaust member 121: exhaust lever
13: control unit 14: burner
20: Roaster 21: stirring member
21A: screw member 211: first screw blade
212: second screw blade 213: third screw blade
215: through hole 23: driving member
231: rotation shaft 30: cooling unit
31: cooling member 311:
313: Cooling section 313A: Cooling hole
33: vortex member 331: first vortex member
333: 2nd vortex blade

Claims (4)

A main body having a feed hopper for feeding a bean;
A roaster provided in the main body and roasting the charged beans heated;
A cooling unit for cooling the roasted beans;
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The roaster includes a stirring member which stirs the charged beans while heating the stirring rod. The stirring member is provided with a screw member composed of first to third screw blades, and stirs the charged beans through three screw blades Roasting device. The method according to claim 1,
The screw member of the roaster
A first screw blade provided on a rotating shaft for rotating the screw member; and second and third screw blades provided on an inner wall surface of the stirring member. The method according to claim 1,
The main body
Further comprising a burner for heating the roaster, wherein the burner is a variable-volume type burner for adjusting a heated air amount supplied to the roaster. 4. The method according to any one of claims 1 to 3,
The cooling unit
A cooling member having a cooling section for cooling the discharged beans; and a vortex member provided in the cooling section, the vortex member comprising first vortex blades and second vortex blades curved in opposite directions to each other. .

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