JPH046557Y2 - - 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.

(Problem to be solved by the invention) In the former roaster, 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 machine to the cooling section was done manually, resulting in poor work efficiency.

(Purpose of the invention) In view of the above-mentioned conventional problems, the present invention automatically transfers the roasted material from the roasting part to the cooling part in a roasting machine that has separate roasting parts and cooling parts. The purpose of the present invention is to provide a roasting machine capable of improving workability.

(Means for solving the problem) In order to achieve the above-mentioned object, the present invention
In a roasting machine, a roasting section 30 which performs roasting and is provided with an outlet 37 for roasting the roasted material, and a cooling section 50 which cools the roasted material A after the roasting process is completed, are provided separately. The section 50 is the roasting section 30.
A carrying-out means 60 is provided below the carrying-out port 37b side, and carries out the roasted object A to the cooling part 50 by tilting the roasting part 30 toward the cooling part 50 after the roasting process is completed. It is characterized by

(Function) According to the present invention, the cooling section is located below the outlet side of the roasting section, and the roasting section is inclined toward the cooling section to transfer the roasted material to the cooling section. Since a carrying-out means is provided, the roasted object is automatically moved from the roasting section to the cooling section by operating the carrying-out means.

(Embodiment) Figures 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 installed.

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 air duct 48, and the connecting pipe 49 constitute a 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, in order to start roasting, the preheating switch 70 is turned on at room temperature, for example, 20° C. (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. The controller 71 determines via the temperature sensor 39 whether or not the preheating progresses and the temperature inside the glass container 32 reaches a certain predetermined temperature (for example, 130°C) (step b). If it is determined that the preheating temperature has been reached, a sign indicating that preheating has been completed is displayed. Specifically, the indicator light 72 is blinked (step c), and the current supply to the heater 33 is cut off to enter a heat retention state. This heat retention state is at the above temperature.
At a temperature within a certain level range with a lower limit of 130°C, the set heat retention temperature is maintained by turning on and off the current supply to the heater 33 based on the output of the temperature sensor 39 (step d). Roasting preparations are made in this state. Once completed, the coffee beans A can be placed into the glass container 32 from the input ports 12 and 36 at any time.

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 this temperature has dropped to a set level, based on the output of the temperature sensor 39 (step 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 carried out 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.

(Effect of the invention) As explained above, according to the invention, the cooling section is located below the outlet side of the roasting section, and the roasting section is tilted toward the cooling section so as to be covered. Since a carry-out means for carrying out the roasted product to the cooling section is provided, by operating the carry-out means, the roasted product is automatically moved from the roasting section to the cooling section,
It has the advantage of improving workability.

[Brief explanation of the drawing]

The drawings show a roasting machine according to the present invention, and FIG. 1 is a cross-sectional view of one side showing the roasting section in a horizontal state, and FIG. 2 shows the roasting section in a tilted state. 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. A partially omitted cross-sectional view seen from the connecting pipe side, Figures 4a and b show the state of the delivery means when the roasting section is inclined, and Fig. 4a is a partially omitted side cross-sectional view. , 4th
Figure b is a partially omitted cross-sectional view seen from the connecting pipe side, Figure 5 is an electric circuit diagram of the control device of the roasting machine, Figure 6 is the temperature vs. time characteristics inside the roasting container during the entire roasting operation, and the heater. FIG. 7 is a graph showing the energized/de-energized states of the blower motor, drive motor, and take-out motor, and is a flowchart 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)

[Scope of utility model registration request] In a roasting machine that is provided with a roasting section that roasts the roasted material and has an outlet for the roasted material, and a cooling section that cools the roasted material after the roasting process is completed, the cooling The section is located below the outlet side of the roasting section, and after the roasting process is completed, the roasting section is tilted toward the cooling section to carry out the roasted material to the cooling section. A roasting machine characterized by: