JPH0127679Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a roasting machine for coffee beans, etc.

(Prior art) A roasting container made of a translucent material, such as heat-resistant glass, is used in the roasting chamber of a roaster, and a stirring blade is rotated coaxially within the container. The applicant has already proposed a device that has a display effect by making the roasting process of the beans visible from the outside.

(Problem that the invention aims to solve) However, normally when coffee beans are roasted, smoke and oil are emitted from the beans, which causes the inner surface of the container to gradually turn brown, causing the roasting process to change. There was a problem that it became invisible and the display effect deteriorated.

(Purpose of the invention) In view of the above-mentioned conventional problems, the present invention attempts to provide a roasting machine in which the wiping member does not come into contact with the inner circumferential surface of the container during roasting, thereby preventing the display effect from being degraded.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides translucent cylindrical roasting containers 11 and 12, and the container 1.
In the roasting machine, a heat-resistant wiping member 34 that contacts the inner peripheral surfaces of the containers 11 and 12 is attached to the blade 28. It is characterized by

(Function) According to the above configuration, the wiping member is always in contact with the inner surface of the container during roasting, and smoke and oil from the beans are removed, so that the display effect is not degraded.

(Embodiment) FIGS. 1 and 2 show an embodiment of the roasting machine according to the present invention, in which 11 is a cylindrical glass container, 12 is an outer frame that supports the glass container 11, and 12 is an outer frame that supports the glass container 11. The container 11 and the dust together constitute a roasting container. 13 is a motor as a power device attached to the lower part of this outer frame 12. 14 is glass container 1
This is a closing plate that closes both open ends of the outer frame 12, and constitutes a part of the outer frame 12. An input port 15 for coffee beans A as an object to be roasted is provided at the upper part of the closing plate 14, and an outlet 16 for taking out the roasted coffee beans A is provided at the lower part. Note that a lid 17 for opening and closing the outlet 16 is attached to the vicinity of the outlet 16 so as to be openable and closable.

Reference numeral 18 denotes a wire mesh drum as a cylindrical porous member, which is provided in the glass container 11 so as to penetrate through the closing plate 14. Both open ends of this wire mesh drum 18 are closed with side plates 19, and a bearing 20 is fitted into the center of these. A pair of fixed shafts 21 rotatably support the wire mesh drum 18 via these bearings 20, and the fixed shafts 21 are horizontally fixed to a support frame 22 attached to each cover plate 14. 23 is one side plate 19 of the wire mesh drum 18
A sprocket 24 is attached to the outer periphery of this sleeve 23. 2
A sprocket 5 is attached to the rotating shaft of the motor 13, and an endless chain 26 is installed between both sprockets 24 and 25, so that the rotation of the motor 13 is transmitted to the wire mesh drum 18. Note that a transmission that reduces the rotation speed of this motor 13 may be installed in parallel. Further, a heater 27 as a heating element is stretched between the two fixed shafts 21, and this heater 27 is located inside the wire mesh drum 18 and is designed to heat the entire circumferential wall inside the wire mesh drum 18. 28 is a pair of blades attached to the wire mesh drum 18, and this is the pair of blades attached to the wire mesh drum 18.
It is designed to rotate close to the inner circumferential surface of the

30 is a cleaning device which includes a mounting piece 31 pivotally supported on the tip side of the blade 28;
1, a spring 33, and a wiping member 34 that contacts the inner peripheral surface of the glass container 11.

The connecting piece 32 consists of a vertical piece 32a that is substantially parallel to the vertical direction of the blade 28, and a horizontal piece 32b that extends perpendicularly thereto from one end of the vertical piece 32a on the base side of the blade 28. A wiping member 34 is attached to the upper end. Spring 3
3 is attached at one end to the wire mesh drum 18 and at the other end to the tip of the horizontal piece 32b.
2 is rotated counterclockwise in the figure (FIG. 2) to urge the wiping member 34 to be pressed against the inner peripheral surface of the glass container 11. The wiping member 34 is made of a heat-resistant synthetic resin, for example, a synthetic resin whose main component is polytetrafluoroethylene, etc., and contacts the inner circumferential surface of the glass container 11. The blade 28 is located on the rotation side of the blade 28 and extends so as to close the gap between the blade 28 and the tip of the blade 28.

In the roasting machine having such a configuration, the motor 13 is rotated and current is passed through the heater 27 to heat it and start roasting. Also, before and after this operation, coffee beans A are put into the glass container 11 through the inlet 15. Due to the rotation of the motor 13, the wire mesh drum 1 is
8 rotates while being supported on the rotating shaft 21. For this reason, the blade 28 fixed to the wire mesh drum 18
The wiping member 34 also rotates in the same manner, and the blade 28 and the wiping member 34 stir the coffee beans A in the glass container 11. When the roasting operation is completed in this manner, the rotation of the motor 13 is stopped, the heating of the heater 27 is stopped, and then the lid 17 is opened and the coffee beans A are taken out from the outlet 16.

Further, the wiping member 34 contacts the inner circumferential surface of the glass container 11, and the spring 33 pulls the horizontal piece 32b toward the wire mesh drum 18 side, and the connecting piece 32 is moved counterclockwise in the figure (FIG. 2). Since the wiping member 34 is rotated and urged to press the wiping member 34 against the inner peripheral surface of the glass container 11, the wiping member 34 is always attached to the glass container 11.
It comes into contact with the inner circumferential surface of.

Furthermore, during the roasting process due to the heating operation described above, a large amount of smoke and oil are generated from the coffee beans, and the glass container 1
However, since the wiping member 34 is constantly rotating in contact with the inner peripheral surface of the glass container 11 as described above, the fogging etc. are always caused by the wiping member 34.
The display effect is not reduced in any way even during roasting. Further, the wiping member 34 cleans the gap between the tip of the blade 28 and the inner peripheral surface of the glass container 11 with the blade 28.
Because it is located on the rotating side of the
The stirred coffee beans A are not caught between the blade 28 and the inner peripheral surface of the glass container 11,
It does not cause motor lock.

In the above embodiment, the cleaning device 30 is attached to the blade 28, but the wiping member 34 may be fixed to the tip of the blade 28 so as to come into contact with the glass container 11 (effect of the invention). Accordingly, the present invention provides a roasting machine equipped with a translucent cylindrical roasting container and a stirring blade that rotates coaxially within the container. Since we have installed a heat-resistant wiping member that comes into contact with the surface, the wiping member comes into contact with the inner circumferential surface of the container during roasting and removes smoke and oil from the beans, which has the advantage that the display effect does not deteriorate. has.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a cross-sectional view showing a roasting machine according to the present invention, and FIG. 2 is a cross-sectional view of a glass container viewed from the axial direction. In the figure, 11, 12... roasting container, 28... blade, 34... wiping member.

Claims (1)

[Scope of utility model registration request] In a roasting machine equipped with a translucent cylindrical roasting container and a stirring blade that rotates on the same axis within the container, the blade has heat resistance that makes it contact with the inner circumferential surface of the container. A roasting machine characterized by being equipped with a wiping member.