KR100963695B1 - Coffee roaster - Google Patents

Abstract

A coffee roaster is provided which properly roasts coffee berries. The coffee roaster has a cylindrical combustion chamber for opening the flame is supplied into the flame inlet formed in one side and the lower portion of the inlet opening; A support frame for supporting the combustion chamber; A roasting chamber inserted into the combustion chamber and roasting coffee berries introduced into the combustion chamber by the flame; A cover plate fixedly coupled to the opening of the combustion chamber and the support frame, each having an inlet and an outlet at corresponding positions of upper and lower portions of the open area of the roasting chamber; An inlet / outlet tube connected to the inlet of the cover plate to inject coffee fruit falling into the roasting chamber and to discharge combustion gas discharged from the roasting chamber; The upper part has a funnel shape and one side of the inlet tube formed on the lower side has a flue opening and closing part which is coupled to the upper part of the inlet / outlet tube and supplies the received coffee fruit to the inlet / outlet tube and rotates the inlet / outlet tube. A hopper for controlling the opening amount of the smoke discharge passage; A roasting motor coupled to the support frame and rotating by a power supply to rotate the roasting chamber; It comprises a roasting chamber void regulator for horizontally moving the axis of rotation of the roasting chamber.

Coffee roaster, roasting chamber, combustion chamber, coffee berries, cyclone separator,

Description

Coffee Roaster {COFFEE ROASTER}

The present invention relates to a coffee roaster for roasting coffee beans, and more particularly, to a coffee roaster having a structure that can effectively control the supply of a heat source for roasting coffee fruit as a compact size. It's about roasters.

A coffee roaster, which is typically used to roast coffee coffee, has a combustion burner or electric heater for providing a heat source necessary for roasting coffee fruit therein, and a flame generated from the combustion burner or electric heater. It is configured to provide a chamber (chamber) to fry the coffee berries contained therein to an appropriate temperature.

Such a coffee roaster is exemplified by the Korean Patent Publication No. 1998-196 "Coffee Stirrer" (hereinafter referred to as "public patent"). The “coffee roaster” disclosed in the above-mentioned patent discloses a cylindrical drum inserted into an interior of a semi-cylindrical housing and coupled to a rotating shaft. And roast the coffee berries housed therein.

However, one side of the cylindrical drum disclosed in the above patent is completely sealed, so if the size of the flame provided by the heat source feeder, for example, the combustion burner is very large, the temperature of the cylindrical drum will rise rapidly and the coffee fruit will be damaged, too small If the temperature inside the cylindrical drum is low, it takes a lot of time to rise to the appropriate temperature of roasting has a problem that the taste and aroma fall.

In addition, since the flame directly touches the surface of the drum containing the coffee fruit, even if the flame of the flame feeder increases or decreases slightly, the coffee roasting temperature is easily raised or lowered so that the roasting temperature of the coffee fruit is not easily controlled, so that the taste and aroma of the coffee fruit are not easily controlled. There was a problem that could not be maintained. Therefore, a very skilled technician could not maintain a constant taste and aroma when roasting the same coffee fruit.

On the other hand, the coffee roaster disclosed in the above patent is not easy to assemble because the gap between the opening surface side and the housing of the cylindrical drum inserted into the cylindrical housing was not easy, the small coffee fruit through the gap is lower Falling to the heat source supply side of the side has a problem that a lot of burning smell occurs when roasting coffee.

It is therefore an object of the present invention to provide a coffee roaster having a structure that can easily roast coffee beans.

It is another object of the present invention to provide a coffee roaster which can effectively control the supply of a heat source for roasting coffee berries in a compact size.

Still another object of the present invention is to provide a coffee roaster capable of easily roasting coffee berries by controlling the amount of roasted heat and the amount of exhaust air easily.

The present invention for achieving the above object is a cylindrical combustion chamber for introducing a flame (flame) is supplied into the flame inlet formed in the opening and formed in the lower side on one side into the cylinder; A support frame for receiving the flame inlet to support the combustion chamber; A plurality of fire holes are formed on one side and the other side is open and cylindrically coupled to the inside thereof through the opening of the combustion chamber, and rotated by the rotation of the central rotating shaft to accommodate the coffee berries contained therein in the flame. A roasting chamber for heating by; A cover plate fixedly coupled to the opening and the support frame of the combustion chamber, having an inlet and an outlet at positions corresponding to the upper and lower portions of the open area of the roasting chamber; An inlet / outlet tube connected to the inlet of the cover plate to inject coffee fruit falling into the roasting chamber and to discharge combustion gas discharged from the roasting chamber; The upper portion has a funnel shape and one side of the input tube formed at the bottom has a flue opening and closing portion coupled to the upper portion of the input / discharge tube, and the input / discharge of the coffee fruit stored according to the opening and closing of the input lever to open and close the input tube. A hopper for supplying a tube and adjusting an opening amount of a smoke discharge passage of the input / discharge tube by rotation; A roasting motor coupled to the support frame and rotating at a constant rotational speed by supplying power to rotate by transmitting power to a rotating shaft of the roasting chamber; A bearing is screwed to a flange coupled to one side of the support frame, and the rotation axis of the roasting chamber through the hollow of the flange and the hollow of the bearing is moved horizontally by tightening and loosening the screw coupling. It comprises a roasting chamber void regulator for horizontally moving the roasting chamber.

The cover plate is installed with a thermocouple sensor for sensing the temperature of the interior of the roasting chamber, one side of the support frame is characterized in that the control box having a control panel for visually displaying the temperature detected by the thermocouple sensor is installed. .

The combustion gas discharge passage of the input / discharge tube is preferably connected to the blowing pen for blowing the combustion gas to the outside in accordance with the rotation of the blower motor, separating the foreign matter contained in the combustion gas discharged by the rotation of the blowing pen. It is preferable that the cyclone separator to be connected to the discharge side of the blowing pen.

The control box includes a power switch for supplying an operating voltage to the control panel according to a user's selection, a roasting motor switch for supplying the operating voltage to the roasting motor to rotate the roasting chamber, and a smoke exhaust passage of the inlet / outlet tube. A blower switch for driving the blower motor connected to the blower motor and a rotation control dial for controlling the rotational speed of the blower motor are provided.

The control panel also has a data interface in data communication with an external computing device, and is operable to transmit temperature data of the roasting chamber sensed in real time by the thermocouple sensor in response to a command from the computing device.

Coffee roaster according to an embodiment of the present invention by controlling the gas valve by the gas pressure gauge, hot air flow control by the flue opening and closing plate connected to the bottom of the hopper, hot air flow control by controlling the rotation speed of the blowing pen at the same time By quickly increasing the roasting temperature to maintain a proper coffee beans can be produced excellent taste and aroma.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood, however, that the invention can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. It should be noted that the embodiments of the present invention described below are intended to sufficiently convey the spirit of the present invention to those skilled in the art.

1 is a perspective view of a coffee roaster according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of a portion of the coffee roaster shown in FIG. 1, and FIG. 3 is a cutaway perspective view of a portion of the coffee roaster shown in FIG. 1. 4 is a longitudinal cross-sectional view of the AA line of the coffee roaster shown in FIG. 1, illustrating a coupling and operation relationship between the combustion chamber 144, the roasting chamber 148, and the surrounding components, and FIG. A longitudinal cross-sectional perspective view of the rotary roasting chamber shown in FIG. 2. 6A and 6B are views for explaining the opening and closing state of the exhaust flue using the coffee fruit hopper shown in FIGS. 1 and 2.

Referring to FIG. 1, a gas combustion burner 700 is placed below a coffee roaster 10 according to an embodiment of the present invention. The gas combustion burner 700 is coupled to a gas container (not shown) that stores gas to control a gas supply amount, and is coupled to the gas valve 510 to the gas valve 510. Gas is supplied through the gas pressure gauge 500 for measuring the gas pressure through the (). A cyclone separator 400 having a blower motor 410 is connected to an outlet side of the exhaust flue 124 for discharging the combustion gas by combustion of the gas combustion burner 700 to the outside.

According to the present invention having the gas supply path as described above, the gas valve 510 is appropriately opened to supply gas to the gas combustion burner 700, and then ignited, while watching the gauge of the gas pressure gauge 500, the gas combustion burner 700. The size of the flame, that is, the amount of heat can be controlled, the size of the flame can be adjusted to a substantially constant state. Flame (heat source, heat amount) generated in the gas combustion burner 700 is supplied to the chamber housing 100 of the upper side.

After the coffee fruit to be roasted is put into the hopper 300 in a state where the flame is supplied to the chamber housing 100, and the pulling lever 310 is pulled upward, the inlet pipe stopper 320 is a lower hole of the hopper 300. Coffee berries received therefrom are introduced into the roasting chamber 148 located inside the chamber housing 100 through the tube 122 connected to the T-type inlet / outlet tube 120.

As shown in FIGS. 2 to 4, the chamber housing 100 has a cylindrical combustion chamber 144 and a combustion chamber, each of which is a flame tube for introducing a flame supplied from the gas combustion burner 700. The roasting chamber 148 is inserted into the inside of the 144 is rotated and a support frame 142 for supporting the combustion chamber 144 is provided.

One side of the combustion chamber 144 is blocked, and the other side is formed with an opening that is completely open, and an open flame inlet 146 is formed under the combustion chamber 144. The flame inlet 146 receives the flame of the gas combustion burner 700 that is accommodated in the support frame 142 and placed below.

On the other side of the support frame 142 is a roasting motor 226 that is always rotated at a constant rotational speed by the input of the power supply voltage is coupled as shown in Figure 4, the pulley coupled to the shaft of the roasting motor 226 ( The belt 158 is connected to the pulley.

The upper part of the support frame 142 is installed and coupled to the roasting motor 226, a temperature display unit for converting the temperature detection signal to digital display and a communication module for data communication with the outside, a power controller for controlling the amount of power and , Various switches, for example, a power switch 220, a roasting switch 222 for turning on / off an operation of the roasting motor 226, and a blower switch 224 for supplying an operating power supply voltage to the blower motor 410. The control box 200 to which the control panel 210 is provided is coupled. The control box 200 is further provided with a rotation control dial 228 for adjusting the rotational speed of the blowing motor 410 is rotated by the "on" of the blowing switch 224.

At this time, the coupling between the support frame 142 and the control box 200 is fastened and coupled by a bolt or screw fitted into the bolt hole, one side of the control box 200 is the control box cover 202 is screwed Or by fastening by bolts.

The roasting chamber 144 inserted into the combustion chamber 144 is cylindrical, as shown in FIGS. 3 to 5, and one side of the roasting chamber 144 is formed with a plurality of fire holes 149. An opening is formed. In addition, the roasting chamber 144 is provided with a stirring blade 154 fixed to the inner circumference thereof as shown in FIGS. 2, 3, and 5, and a rotating shaft 152 is fixed to the center of the stirring blade 154.

The rotating shaft 152 is coupled to the hollow of the flange type chamber coupler 155 attached by welding to the outer surface of one side of the roasting chamber 148, the rotating shaft 152 is fixed bolt or screw as shown in FIG. It is fixed to the chamber coupler 155 by the. The other side of the rotating shaft 152 of the roasting chamber 148 is a hole in the center of the combustion chamber 144 and the roasting chamber voids coupled to the cover 202 of the control box 200 coupled to the support frame 142 It is fitted into a hole formed in the center of the regulator 160 is coupled. In FIG. 4, reference numeral 159 denotes a heat insulating plate to prevent the radiant heat of the combustion chamber 144 coupled to the upper portion of the support frame 142 from being sheared to the control box 200.

As shown in FIG. 4, the roasting chamber air gap regulator 160 has a flange 162 having a hollow with a screw thread at the center thereof, and is coupled to one side of the control box cover 202 by a bolt or a screw 169. , The bearing 166 is coupled to the flange 162 by a screw or screw coupled to the void adjusting knob 164 is formed with a male screw.

The rotating shaft 152 of the roasting chamber 148 is inserted into the hollow of the flange 162 and the hollow of the bearing 166 of the roasting chamber void regulator 160 having the configuration as described above and the rotating shaft 152 The bearing 168 corresponding to the end portion of the fastening bolt 170 is fastened to prevent the bearing 166 from being separated from the rotation shaft 152. Here, the bearing 166 is preferably a rhombus flange type (cylindrical bore type) UCFL bearing.

As shown in FIGS. 3 and 4, the pulley 156 is fixed to the rotation shaft 152 of the roasting chamber 148 located inside the control box 200 covering a portion of the support frame 142. Is coupled to the pulley 156 is fitted with a belt 158 connected to the shaft of the roasting motor 226 coupled to the lower portion is coupled.

On the other hand, the cover plate 110 is coupled to one side of the opening of the combustion chamber 144 and the support frame 142 coupled to the lower portion by a screw or bolt. The cover plate 110 is formed by opening the center, the check plate 112 is fastened to the opened portion of the cover plate 110 by screws or bolts.

The upper side of the check plate 112 is connected to the inlet / outlet of the T-type inlet / outlet tube 120, one side is connected to the hopper 300 and the other side is connected to the exhaust flue 124, the center The rotating shaft 152 of the roasting chamber 148 is fitted to facilitate the rotation of the bearing 126. In the embodiment of the present invention, although the inlet / outlet tube 122 and the inlet / outlet tube 122 of the check plate 112 is shown that the more connected form / discharge tube 122, but one is sufficient It must be recognized.

In addition, the inspection plate 112 includes a probe for checking the inside of the roasting chamber 148 and a probe for extracting the coffee fruit stirred therein by the stirring vane 154 in the roasting chamber 148. A probe insertion hole 128 is formed to allow the 130 to be inserted / removed.

In addition, the inspection plate 112 is coupled to a thermocouple sensor 140 that electrically senses a temperature in the roasting chamber 148 and supplies the control panel 210 to an intermediate portion thereof. The discharge portion 136 is coupled through. The weight portion 138 is coupled to the end of the discharge portion 136 hinged to the check plate 112 is normally kept closed while being opened when raised by the user.

Now, as illustrated in FIG. 6A, when the flue opening and closing plate 330 formed in the hopper 300 blocks the inlet of the exhaust flue 124, the pulling lever 310 coupled to the hopper 300 is pulled upward. The coffee fruit loaded in the hopper 300 is introduced into the roasting chamber 1480 through the input / discharge tube 120.

In such a state, when the power switch 220 and the roasting switch 222 provided in the control panel 210 of the control box 200 are “on”, the roasting motor 226 may have a preset speed, for example, 60 RPM. Start to rotate at speed. When the roasting motor 226 is rotated, the rotating shaft 152 connected to the belt 158 and the pulley 156 is rotated to rotate the roasting chamber 148. Therefore, the coffee fruit introduced into the roasting chamber 148 is stirred by the stirring blade 154 in the roasting chamber 148.

At this time, if the user ignites the gas combustion burner 700 after properly opening the gas valve 510, the flame of the gas combustion burner 700 is burned through the flame inlet 146 as shown in FIG. It is introduced into the chamber 144. The flame introduced into the combustion chamber 144 heats the roasting chamber 148 as well as the combustion chamber 144.

In addition, a predetermined amount of radiant heat generated due to the distance between the combustion chamber 144 and the gas combustion burner 700 evenly heats the roasting chamber 148 which rotates laterally, and strikes the roasting chamber 148 and the combustion chamber ( The firearm included in 144 heats the coffee fruit that is introduced into and stirred through the fire hole 149 formed in one side of the roasting chamber 148.

At this time, the amount of heat introduced into the combustion chamber 144 may be appropriately adjusted using the gas pressure gauge 500 and the gas valve 510.

When the roasting chamber 148 is heated as described above, the thermocouple sensor 140 inserted therein through the check plate 112 detects the heating temperature of the roasting chamber 148 and supplies it to the control panel 210. The control panel 210 displays a temperature corresponding to the output of the thermocouple sensor 140 on the display window.

When the temperature in the roasting chamber 148 rises to an appropriate temperature, for example, a temperature for deliciously roasting the coffee fruit, the flue opening and closing plate 330 formed at the lower part of the hopper 300 is opened as shown in FIG. 6B. To lose. Subsequently, when the blower switch 224 provided in the control panel 210 is turned on, the blower motor 410 installed in the cyclone separator 400 connected to the exhaust flue 124 is rotated so as to be inside the roasting chamber 148. The fruit peeled from the filled combustion gas and the agitated coffee fruit, dust and the like are sucked and separated by a dust collector 420 located below.

As described above, the flow of the fire filled in the roasting chamber 148 by the flame generated from the gas combustion burner 700, that is, the hot air, is controlled by the rotation control dial 228 that controls the rotation speed of the blowing motor 410. Can be.

On the other hand, the coffee fruit introduced into the roasting chamber 148 through the hopper 300 has various sizes. At this time, since the opening side of the roasting chamber 148 is coupled to the cover plate 110 as shown in FIG. 4, the coffee fruit injected through the hopper 300 is between the roasting chamber 148 and the cover plate 110. In order to prevent falling into the gap (G) of the roasting chamber pore regulator 168 installed in the cover 202 of the control box 200 should be appropriately adjusted.

When the pore adjusting knob 164 of the roasting chamber pore regulator 168 is rotated, the rotation axis of the roasting chamber 148 is moved in a horizontal direction so that the gap between the opening of the roasting chamber 148 and the cover plate 110 is adjusted. do.

1 is a perspective view of a coffee roaster according to an embodiment of the present invention.

2 is an exploded perspective view of a portion of the coffee roaster shown in FIG. 1;

3 is a cut away perspective view of a portion of the coffee roaster shown in FIG. 1;

4 is a longitudinal sectional view taken along line A-A of the coffee roaster shown in FIG. 1;

5 is a longitudinal sectional perspective view of the rotary roasting chamber shown in FIG. 2;

6a and 6b are views for explaining the opening and closing state of the exhaust flue using the coffee hopper shown in Figures 1 and 2.
<< explanation of the code about part of drawing >>

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10: coffee roaster, 100: chamber housing,

110: cover plate, 112: check plate,

120: T-type input / discharge tube, 122: input / discharge tube,

124: exhaust year, 126: bearing,

128: probe insertion hole, 130: probe,

134: inspection window, 136: discharge section,

138: weight, 140: thermocouple sensor,

142: support frame, 144: combustion chamber

146: flame inlet, 148: roasting chamber,

149: fire hole, 152: rotation axis,
154: stirring blade, 155: chamber combiner,

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156: rotating shaft fixed pulley (pulley), 158: belt,

159: insulation plate, 160: roasting chamber void regulator,

162: flange, 164: air gap knob.

166: bearing, 169: bolt,

170: fixing bolt, 200: control box,

210: control panel, 220: power switch,

222: roasting switch, 224: blower switch,

226: roasting motor, 228: rotation control dial,

300: hopper, 310: closing lever,

320: stopper tube, 330: year opening and closing plate,

400: cyclone separator, 410: blower motor,

420: dust collection hopper, 500: gas pressure gauge,

510: thermal control valve, 600: beans receiving fan,

700: gas combustion burner, G: gap,

Claims (6)

A cylindrical combustion chamber in which an opening is formed at one side in a cylindrical shape and a flame is supplied to a flame inlet formed at a lower portion thereof; A support frame for receiving the flame inlet to support the combustion chamber; A plurality of fire holes are formed on one side and the other side is open and cylindrically coupled to the inside thereof through the opening of the combustion chamber, and rotated by the rotation of the central rotating shaft to accommodate the coffee berries contained therein in the flame. A roasting chamber for heating by; A cover plate fixedly coupled to the opening and the support frame of the combustion chamber, having an inlet and an outlet at positions corresponding to the upper and lower portions of the open area of the roasting chamber; An inlet / outlet tube connected to the inlet of the cover plate to inject coffee fruit falling into the roasting chamber and to discharge combustion gas discharged from the roasting chamber; The upper portion has a funnel shape and one side of the input tube formed at the bottom has a flue opening and closing portion coupled to the upper portion of the input / discharge tube, and the input / discharge of the coffee fruit stored according to the opening and closing of the input lever to open and close the input tube. A hopper for supplying a tube and adjusting an opening amount of a smoke discharge passage of the input / discharge tube by rotation; A roasting motor coupled to the support frame and rotating at a constant rotational speed by supplying power to rotate by transmitting power to a rotating shaft of the roasting chamber; A bearing is screwed to a flange coupled to one side of the support frame, and the rotation axis of the roasting chamber through the hollow of the flange and the hollow of the bearing is moved horizontally by tightening and loosening the screw coupling. Coffee roaster, characterized in that composed of a roasting chamber air gap regulator for horizontally moving the roasting chamber. According to claim 1, The cover plate is provided with a thermocouple sensor for sensing the temperature inside the roasting chamber, One side of the support frame has a control box having a control panel for visually displaying the temperature detected by the thermocouple sensor Coffee roaster characterized in that the installation. According to claim 2, wherein the combustion gas discharge passage of the input / discharge tube blowing pen for blowing the combustion gas to the outside according to the rotation of the blower motor, foreign matter contained in the combustion gas discharged by the rotation of the blowing pen Coffee roaster, characterized in that the cyclone separator for separating. The control box of claim 3, wherein the control box includes a power switch for supplying an operating voltage to the control panel according to a user's selection, and a roasting motor switch for supplying the operating voltage to the roasting motor to rotate the roasting chamber. And a blower switch for driving the blower motor connected to the smoke discharge passage of the discharge tube, and a rotation control dial for controlling the rotational speed of the blower motor. The control panel of claim 4, wherein the control panel has a data interface for data communication with an external computing device, and transmits temperature data of the roasting chamber sensed in real time by the thermocouple sensor in response to a command from the computing device. Coffee roaster. The cover plate according to any one of claims 1 to 5, wherein a hole corresponding to the opening of the combustion chamber is formed in the cover plate, and the hole of the cover plate is agitated therein by rotation of the roasting chamber. The coffee roaster, characterized in that the probe is drawn out to the outside, the inspection window for checking the stirred object and the check plate formed with a discharge portion for discharging the object contained in the roasting chamber to the outside is screwed in a detachable form.

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