JPH0439312B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a roasting machine for roasting coffee beans and the like.

(Prior art) Conventionally, there are two types of coffee bean roasting machines: one that performs the entire process from roasting to cooling of coffee beans in one room, and the other that has a roasting section and a cooling section and performs the process in two separate rooms. It has been known.

(Problems to be Solved by the Invention) In the former roasting machine, the roasting process and the cooling process of coffee beans are performed in one room, so it is difficult to control between the high roasting temperature and the low cooling temperature. There was a problem that the time required to complete the entire process of the roasting machine was long.
Furthermore, the lengthening of the entire process makes it impossible to satisfy the demand for shortening the roasting time and cooling time to bring out the flavor of coffee beans.

In the latter type of roaster, the roasting process and the coffee bean cooling process are performed in separate locations, so the former problem is solved; The transfer of coffee beans from the roasting section to the cooling section is done manually, which results in poor workability, and the roasting process also includes a cooling step to cool the roasting section to the roasting starting temperature. However, in conjunction with the coffee bean cooling process, separate air blowing means are provided, resulting in high costs and an increase in the size of the roasting machine, making it unsuitable as a tabletop roasting machine.

(Object of the Invention) In view of the above-mentioned conventional problems, the present invention provides a roasting machine in which a roasting section and a cooling section are provided separately, in which the roasted material is automatically transferred from the roasting section to the cooling section. To provide a small-sized roasting machine that is inexpensive and has only one ventilation means, while improving workability.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides
In a roasting machine, a roasting section 30 is provided with a roasting section 30 for roasting the roasted material A, and a cooling section 50 for cooling the roasted material A after the roasting process is completed. The brewing section 30 and the cooling section 50
means a ventilation means 20 provided with ventilation means 22 and 23,
48 and 49, and the cooling section 50 is located below the outlet 37b side of the roasting section 30, and the roasting section 30 is tilted toward the cooling section 50 after the roasting process is completed. The roasted material A is transferred to the cooling section 50.
It is characterized in that it is provided with an unloading means 60 for unloading.

(Function) According to the present invention, since the roasting section and the cooling section are connected through the ventilation means provided with the ventilation means, one ventilation means can cool the roasted object and cool the inside of the roasting section. Cooling can be performed. Further, the cooling section is located below the carrying-out port side of the roasting section, and a carrying-out means is provided for tilting the roasting section toward the cooling section and carrying out the object to be roasted to the cooling section. Since there,
By operating the carrying-out means, the object to be roasted is automatically moved from the roasting section to the cooling section.

(Embodiment) FIGS. 1 to 7 show an embodiment of the present invention, in which 10 is a box with an opening at the bottom and a bulge at the top from the center in the vertical direction on one side (bulging portion 10a). 20 is an oblong box-shaped pedestal with the roasting machine body 10 erected above it, and 30 is a stand placed at the center of the upper part of the roasting machine body 10 for roasting coffee beans A. The roasting section 50 is a cooling section for cooling the roasted coffee beans A, and 60 is a conveying means for tilting the roasting section 30.

The roasting machine main body 10 is provided with an exhaust port 11 and an external input port 12 for charging coffee beans A on the upper plate of the bulging portion 10a, and a silver leather storage box 13 is provided below the exhaust port 11. However, a charging door 14 is attached to the external charging port 12. Further, a coffee bean A carrying-out duct 15 is provided on the lower plate of the bulging portion 10a.

An intake port 21 is provided below the delivery duct 15 on the upper plate of the pedestal 20, and the intake port 2
1 is provided with the cylindrical cooling part 50 whose diameter increases as it goes upward, and a wire mesh filter 5 is provided in the lower part of the cooling part 50.
1 is attached. Further, a blower fan 2 is disposed inside the pedestal 20 near the center of the upper plate of the pedestal 20.
A blower motor 23 for driving the air blower 2 is disposed.

The roasting section 30 includes an outer frame 31 with an open top,
It includes a cylindrical heat-resistant glass container 32 used as a roasting container provided between the outer frame 31, and a wire mesh drum 34 made of a cylindrical porous material and having a heater 33 stretched therein.

On one side of the upper part of the outer frame 31 is an air outlet 35 for sucking air into the glass container 32, and on the other side of the upper part is a coffee bean A that discharges the air inside the glass container 32 and also serves as an air outlet. An internal input port 36 for inputting the liquid is provided respectively. Further, at the lower part of the outer frame 31 and on the side of the carry-out duct 15, a carry-out port 37 for roasted coffee beans A is provided. It is located diagonally directly above the discharge duct 15. In addition, 38 is a guide plate, and the internal input port 36
It faces into the silver skin storage box 13 from the lower part, and guides the discharged air to the exhaust port 11 and guides the coffee beans A into the container 32, respectively.
Note that 39 is a temperature sensor provided on the inner surface of the outer frame 31.

Both open ends of the wire mesh drum 34 are closed by side plates 40, and a bearing 41 is fitted in the center thereof. A pair of fixed shafts 42 rotatably support the wire mesh drum 34 via the bearings 41, and are horizontally supported by a support frame 43 attached to the outer frame 31. Reference numeral 44 denotes a drive motor provided at the lower part of the bottom plate 31a of the outer frame 31, and is connected to the bearing 41 via an endless chain 45. 46
is a blade attached to the outer peripheral surface of the wire mesh drum 34, and is configured to rotate close to the inner peripheral surface of the glass container 32. In addition, 47 is the unloading port 37
This is a carry-out door for closing the door, which is composed of an upper vertical piece 47a, a horizontal piece 47b connected to the lower end of the vertical piece 47a, and a lower vertical piece 47c connected to one end of the horizontal piece 47b, and the tip of the upper vertical piece 47a is It is located close to the storage box 13, and the connecting portion between the horizontal piece 47b and the lower vertical piece 47c is pivotally supported on the outer frame 31, so that when the outer frame 31 is tilted, the upper vertical piece 4
The tip of 7a is pressed against the storage box 13 and rotates clockwise around the connecting portion to open the outlet 37.

48 is a ventilation duct communicating with the ventilation port 35 of the outer frame 31; 49 is a connection between the pedestal 20 and the ventilation duct 4;
A connecting pipe that connects to 8 with a loose passage,
The pedestal 20, the ventilation duct 48, and the connection pipe 49 constitute ventilation means that connects the roasting section 30 and the cooling section 50.

As shown in FIGS. 3 a, b and 4 a, b, the carrying out means 60 is connected to the bottom plate 31 a of the outer frame 31.
A pair of bearings 61 provided in the center of the shaft, a support shaft 62 installed on the bearings 61, a cam frame 63 fixed to the roasting machine main body 10, and an eccentric rotatably housed in the cam frame 63. It consists of a cam 64 and an unloading motor 66 fixed to the eccentric cam 64 via a connecting shaft 65, and the unloading motor 66 is connected to the bottom plate 3 of the outer frame 31.
1a, and when the connecting shaft 65 is located on the lower side (always), the bottom plate 31a is horizontal,
When the connecting shaft 65 is located on the upper side, as shown in FIG. 2, the drive motor 44 side of the bottom plate 31a is pushed upward, and the bottom plate 3
1a is rotated and tilted toward the discharge duct 15.

FIG. 5 is an electrical circuit diagram of a control device for a roasting machine according to the present invention. 70 is a preheating switch that also serves as a power switch that is operated before starting the roasting process; 71 is a computer-configured controller; 72 is an indicator light indicating completion of preheating or roasting preparation; controller 71 is a switch for preheating switch 70; Based on the output signal and the output signal of the temperature sensor 39, the blower motor 23 and the heater 3 are activated at predetermined timing.
3. The operation of all or some of the drive motor 44 and unloading motor 66 is controlled according to the following steps.

Next, the roasting process and the cooling process of the roasting section and the cooling section of the roasting machine having the above configuration are explained as follows: FIG.
A detailed explanation will be given with reference to a graph showing the energized/de-energized states of the blower motor 23, drive motor 44, and take-out motor 66, and a flowchart of roasting control by the controller 41 in FIG.

First, the preheating switch 70 is turned on at room temperature, for example, 20° C., in order to start the roasting operation (step a). As a result, the controller 71 causes a preset level of current to flow through the blower motor 23 and the heater 33 (the blower motor 23 rotates slowly), thereby raising the temperature inside the glass container 32 and performing preheating. At this time, the indicator light 72 flashes to indicate that preheating is in progress. This preheating progresses, indicating that preheating is in progress. As this preheating progresses, the temperature inside the glass container 32 reaches a predetermined temperature (for example, 130°C).
The controller 71 determines via the temperature sensor 39 whether or not the predetermined temperature has been reached (step b), and if it is determined that the predetermined temperature has been reached, a sign indicating that preheating has been completed is issued. Specifically, the indicator light 72 is blinked (step c), and the current supply to the heater 33 is cut off to enter the heat retention state. In this heat retention state, the temperature is within a certain level range with the lower limit of 130°C of the above temperature, and the heater 33 is activated based on the output of the temperature sensor 39.
The set heat retention temperature is maintained by turning on and off the current supply to the device (step d). In this state, roasting preparation is completed, and you can open the input ports 12 and 36 at any time.
The coffee beans A can be poured into the glass container 32 from the inside.

When coffee beans A are added here, glass container 3
2, the controller 71 determines based on the output of the temperature sensor 39 whether or not this temperature has dropped to a set level (step c), and the controller 71 determines whether or not the temperature has dropped to a set level, for example, 100°C. If it is determined that the roasting temperature has decreased to a certain level, a current for roasting is supplied to the heater 33, and the roasting process is automatically started (step f). In this way, glass container 3
The temperature inside 2 rises and reaches the roasting end temperature of 170, for example.
The controller 71 determines whether the temperature has reached ℃,
If it is determined that the temperature has been reached (step g), the controller 71 flashes the indicator light 72 again to indicate the end of roasting, and also stops the current supply to the drive motor 44 and heater 33 to restart the roasting operation. The process ends (step h).

When the roasting operation is completed, the controller 71 energizes the unloading motor 66 for a predetermined period of time (step i), and rotates the eccentric cam 64 by half a rotation to close the bottom plate 3 of the outer frame 31.
1a is tilted toward the discharge duct 15. Due to this inclination, the upper end of the upper vertical piece 47a of the carry-out door 47 comes into pressure contact with the silver skin storage box 13, and rotates to open the carry-out door 47. As a result, coffee beans A are transferred to the outlet duct 1.
5 and is transported and stored in the cooling unit 50. This operation of carrying out the coffee beans A is carried out efficiently because the blade 46 is rotating. Note that when the power supply to the carry-out motor 66 is stopped after a predetermined period of time has elapsed, the roasting section 30 returns to its original horizontal state due to its own weight. In addition, in parallel with this, the controller 71
The output signal causes the blower motor 23 to rotate strongly (step j), thereby cooling the coffee beans A in the cooling section 50 and quickly blowing the inside of the glass container 32 through the stand 20, the connecting pipe 49, and the blower duct 48. Cooling. During cooling, the controller 71 controls the temperature of the glass container 3 based on the output of the temperature sensor 39.
The temperature inside the chamber is monitored and it is determined whether or not this temperature has reached the preset temperature of 130°C (step k). It is determined whether the fan 2 is on (step 1), and if it is determined that the
2 is rotated slightly, and then the set heat retention temperature is maintained by on/off control of the heater 33 (step d), and the coffee beans A are on standby for the next injection. On the other hand, if the above-mentioned temperature of 130°C is not achieved, repeat the steps from step j onwards, and if it is determined in step l that the preheating switch 70 is not on, that is, if the power switch is turned off, all roasting The work for this will be completed.

In this way, cooling of the roasting section 30 and cooling section 50
is cooled by one blower fan 22,
Furthermore, since the roasting section 30 and the cooling section 50 are provided separately, it is possible to continuously operate the roasting process in the roasting section 30, and furthermore, the roasting section 30 can be automatically operated from the cooling section 50. Coffee beans can be transported.

Although not shown, a damper may be provided in the ventilation means such as the ventilation duct 48 to control the amount of ventilation.

(Effects of the Invention) As explained above, in the present invention, since the roasting section and the cooling section are connected through the ventilation means provided with the ventilation means, one ventilation means can cool and cool the roasted object. The inside of the roasting section can be cooled, the manufacturing cost is reduced, and the roasting machine can be downsized, making it possible to provide a tabletop roasting machine. Furthermore, the cooling section is located below the outlet side of the roasting section, and a carrying-out means is provided for tilting the roasting section toward the cooling section and carrying out the roasted object to the cooling section. Therefore, the object to be roasted is automatically moved from the roasting section to the cooling section by operating the carrying-out means, which has the advantage of improving workability.

[Brief explanation of drawings]

The drawings show a roasting machine according to the present invention, and FIG. 1 is a cross-sectional view from one side showing a state in which the roasting section is horizontal, and FIG. 2 shows a state in which the roasting section is inclined. One side sectional view, Figures 3a and 3b show the state of the conveyance means when the roasting section is horizontal, Figure 3a is a partially omitted one side sectional view, and Figure 3b is a side sectional view. Partially omitted cross-sectional view as seen from the connecting pipe side, Figure 4 is a and b.
4 shows the state of the carrying-out means when the roasting section is inclined; FIG. 4a is a partially omitted sectional view from one side; FIG.
Figure 5 is an electric circuit diagram of the control device of the roasting machine, and Figure 6 shows the temperature vs. time characteristics inside the roasting container during the entire roasting operation and the energized/de-energized states of the heater, blower motor, drive motor, and unloading motor. The graph shown in FIG. 7 is a flow diagram of roasting control by the controller. In the figure, 22, 23...Blowing means, 30...Roasting section, 37...Export port, 20, 48, 49...Ventilation means, 60...Carrying out means, A...To be roasted.

Claims (1)

[Claims] 1. In a roasting machine that is provided with a separate roasting section for roasting the roasted material and an outlet for the roasted material, and a cooling section for cooling the roasted material after the roasting process is completed, The roasting section and the cooling section are connected via a ventilation means provided with an air blowing means, and
The cooling section is located below the outlet side of the roasting section, and includes a carry-out means for tilting the roasting section toward the cooling section and carrying out the roasted object to the cooling section after the roasting process is completed. A roasting machine characterized by the following: