JPH0811031B2 - Oven structure for bar-cooking - Google Patents

Description

TECHNICAL FIELD The present invention relates to an oven structure for Baumkuchen.

(B) Conventional technology Conventionally, in the past, the core rod was mounted on the inside of the furnace body of the oven and rotated, and the dough of Baumkuchen was thinly attached to the rotating core rod and the dough was baked, When an appropriate baking color appeared, the work was repeated by further attaching the dough to the surface and baking it, there was an oven that made it possible to bake Baumkuchen whose baking color appeared like a tree ring in the cross section. .

(C) Problems to be solved by the invention However, in order to bake Baumkuchen with a beautiful cross section, it is necessary to make the dough to have a uniform adhesion thickness and to quickly bake it, while fats and oils such as butter and eggs. The so-called rich dough containing a large amount of sugar and sugar has low thermal conductivity and easily flows at high temperatures, so the dough sags during baking and it becomes difficult to baked Baumkuchen with a uniform layer thickness. .

Therefore, if the firing temperature is raised to shorten the firing time, the surface, especially the surfaces of both ends, are over-baked, while the inside is unfired, and if the firing temperature is lowered, the dough will flow evenly. It was not possible to obtain a fired product having a different layer thickness, and especially when firing a thick product, the dough during firing sometimes fell off the core rod.

Due to such circumstances, at present, only the poor dough with a low content of fats, oils, and sugars can be used as the dough for the Baumkuchen, and the Baumkuchen using the rich dough is highly skilled. There was no way of firing other than the manual firing by the operator.

(D) Means for Solving the Problems In the present invention, the core rod mounted inside the furnace body is rotated and the dough is adhered to the core rod, and the dough is baked. In a Bamkuchen oven configured to bake, a far-infrared radiator and a heat ray reflection plate are arranged at a predetermined distance from the core rod, and the far-infrared radiator is a far-infrared radiation plate and its lower part. The far-infrared radiation plate is formed by spraying a metal oxide and far-infrared radiation material particles onto a lower surface of a metal substrate made of an aluminum alloy using a binder. It is intended to provide an oven structure for Baumkuchen, which is a far-infrared radiation surface coated with a rough finish by a construction method.

(E) Action In the present invention, the dough during baking is simultaneously heated from the inside and outside of the dough by heating by heat conduction from the surface and heat rays including far infrared rays from the far infrared radiator and near infrared rays from the heat ray reflector. This means that the entire dough is heated in a short time without over-baking the dough surface, so even if a rich dough is used, it will be baked before the dough begins to flow and the dough will be stable. It is possible to wind the laminated fabric evenly.

When the far-infrared radiation plate installed inside the furnace body is heated, it emits far-infrared radiation.The dough receives far-infrared radiation during firing, and this far-infrared radiation penetrates into the interior of the dough. Since the dough can be heated from the inside, the temperature of the dough rises substantially uniformly inside the surface.

The far-infrared ray used here has a wavelength of 5 μm or more, and the far-infrared ray in this band excites the rotational vibration of the raw material molecules of the dough to cause the dough itself to generate heat. Is less attenuated, and the reach to the inside of the fabric is longer.

The wavelength and intensity of the far infrared rays can be arbitrarily adjusted by adjusting the temperature of the far infrared radiation plate and the distance between the radiation plate and the object to be fired.

Further, by adjusting the intensity of the heat rays including the near infrared rays from the heat ray reflection plate, it becomes possible to set the in-furnace conditions most suitable for firing the dough surface.

(F) Effect As described above, by disposing the far-infrared radiator and the heat ray reflector at a predetermined distance from the core rod, the material attached to the core rod is directly heated both inside and outside. , While preventing over-baking of the surface, the baking time can be shortened,
Baking until the dough stabilizes before the dough begins to flow, so even unskilled people can do the baking of Baumkuchen with rich dough, and do the baking of rich dough under certain baking conditions. Since it can be performed, there is an effect that it becomes possible to automatically bake a high-grade Baumkuchen using a rich dough.

Moreover, since the aluminum alloy is used for the metal substrate of the infrared radiation plate and the radiating surface has a rough surface finish, the temperature distribution of the radiation plate is made uniform, and uniform wavelengths are distributed to various parts in the furnace. And has the effect of being able to emit far infrared rays of intensity.

(G) Example To explain the example of the present invention in detail with reference to the drawings, FIG. 1 is a front view of an oven (A) for Baumkuchen,
Inside the furnace body (1) opened in the front direction, the rotating shaft (2) is mounted on the shaft, and the left and right rotating discs (3a) (3b) are connected to the left and right ends of the coaxial shaft (2), respectively. A plurality of core rods (4) are rotatably mounted between the plates (3a) (3b).

Then, as shown in FIG. 2, a sprocket (5) is fitted to the right end of the rotary shaft (2) and connected to a drum rotation motor (not shown) via a chain (6), The operation of the motor is controlled by a drum rotation switch (7) arranged on the right side surface of the oven (A).

The left end of the rotary shaft (2) is a double shaft as shown in FIG. 3, and the large and small sprockets (9) are attached to the outer shaft (8).
(10) is fitted, and the large sprocket (9) is connected to a mandrel rotation motor (not shown) via a chain (11),
The small sprocket (10) is connected to the sprocket (10a) fitted to the shaft end of each core rod (4) via the chain (12), and the core rod rotation arranged on the front right side surface of the oven (A). The ON / OFF of the switch (13) is configured to rotate the core rod (4) separately from the left and right rotating discs (3a) and (3b).

In addition, in FIG. 1, (14) is a power supply pilot lamp,
(15) is a drum rotation counter, (16) is a drum rotation speed change handle (17) is a core rod rotation speed change handle, and (18) is a handle for raising and lowering the dough plate (19).

Inside the furnace body (1), as shown in the sectional view of FIG. 4, a far infrared radiation plate (20) as a far infrared radiation body (B).
And a far-infrared heater (22) are arranged, and the radiation plate (20) is arranged in the furnace body (1) above the core rod (4) at a predetermined distance from the far-infrared radiation. The plate (20) and the core rod (4) are arranged at a predetermined distance in the inner part of the furnace body, and the lower surface is curved in a concave shape so as to keep the core rod (4) at a predetermined distance. Therefore, a large number of far infrared ray heaters (22) are arranged at appropriate intervals close to the lower surface to form a far infrared ray radiator (B). The heat ray reflection plate (21) is a flat plate and is erected in the inner part of the furnace body (1) in a slightly rearward tilted manner, and a large number of gas burners (2) are provided close to the front surface of the reflection plate (21).
3) is provided.

The far-infrared radiation plate (20) is a metal substrate (20
On the lower surface of a), the far-infrared radiation material particles such as metal oxides and rare earth oxides of silicon oxide, boron oxide, aluminum oxide, sodium oxide, titanium oxide, etc. are used by a spraying method using sodium silicate etc. as a binder. The far-infrared radiation surface (20b) is coated, and the far-infrared radiation from the same surface (20b) is heated by the far-infrared radiation from the heat source irradiated on the radiation surface and convection in the furnace. Is to be emitted.

In particular, since the aluminum substrate having a high thermal conductivity is used for the metal substrate (20a) of the far-infrared radiation plate (20), the temperature distribution of the radiation plate (20a) is made uniform, and each part inside the furnace body (1) is It emits far-infrared rays having a uniform wavelength and intensity.

For coating the far-infrared radiation material, a construction method such as enameling can be used. The point is that the surface of the metal substrate can withstand high temperatures and the heat transfer from the substrate to the same material is in good condition. Should be attached. However, in order to promote the scattering of radiated far infrared rays and make the far infrared intensity in the furnace uniform, it is desirable that the radiating surface is a rough surface. From this point, in the present embodiment, the radiating surface is a rough surface. It employs a thermal spraying method that finishes with.

The heat ray reflector (21) is for coating a metal substrate with a ceramic material by a melting method or the like and heating it by a gas burner (23) to radiate heat rays containing near infrared rays.

In the figure, (24) indicates a reflector supported by the rotary shaft (2), and the balance weight (25) always directs the reflecting surface to the inner part.

The embodiment of the present invention is configured as described above, and when firing Baumkuchen, the left and right rotating discs (3a) (3b) are rotated to position the core rod (4) downward so that the dough remains the same. The core rod (4) is attached so that it is wound around the core rod (4), and the left and right rotating discs (3a) (3b) are rotated again to attach the dough to the core rod (4)
Far infrared heater (22)
And the far infrared ray from the far infrared radiation plate (20) directly heats the inside of the fabric, and the surface of the fabric is reflected by the heat ray reflection plate (2
The heat ray from 1) and the ambient temperature in the furnace body (1) are used for firing to give an appropriate burn color.

This work is repeated in sequence to burn the Baumkuchen whose annual ring-shaped burn color appears on the core rod (4), but the dough attached to the core rod (4) is almost the same inside and outside due to far infrared rays. As a result, even if a rich dough is used, it will be baked to such an extent that the dough will stabilize before the flow of the dough increases, preventing sagging of the dough and making it uniform. Baumkuchen, which has a beautiful annual ring-shaped burn color laminated in thickness, will be fired.

Therefore, even unskilled people can burn high-grade Baumkuchen using rich dough, and by using far infrared rays and heat rays together, what was conventionally fired while slightly adjusting the heat adjustment Since it becomes possible to perform the firing under constant firing conditions, it becomes possible to automate the firing of the Baumkuchen.

[Brief description of drawings]

FIG. 1 is an overall front view of an oven for Baumkuchen according to the present invention. FIG. 2 is a sectional view taken along the line II of FIG. 1. FIG. 3 is a sectional view taken along the line II-II of FIG. -III Sectional view Figure 5 is a partial sectional view of far-infrared radiation plate (A): Baumkuchen oven (B): Far-infrared radiation body (1): Furnace body (4): Core rod (21): Heat wire Radiant plate

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References Shou 59-175381 (JP, U) Seki 58-91611 (JP, U) Seki 58-21284 (JP, U) JP 60- 40573 (JP, B2) Jitsuko Sho 46-4878 (JP, Y1) Jpn. App. 58-72156 (Jun. Sho. 59-175381) (JP, U) Japanese Patent Application No. 56-114524 (JP, U) No. Japanese Patent Application No. 56-114524 A microfilm (JP, U) of the contents and drawings attached to the application for (Act. 58-21284).

Claims (1)

[Claims] 1. A product is obtained by repeating the steps of rotating a core rod (4) axially mounted inside a furnace body (1) and attaching dough to the core rod (4) and firing the dough. In a Baumkuchen oven configured to be fired, the core rod (4)
And the far-infrared radiator (B) and the heat ray reflection plate (21) are arranged at a predetermined distance, and the far-infrared radiator (B) is provided.
Comprises a far infrared radiation plate (20) and a far infrared heater (22) arranged below the far infrared radiation plate at a predetermined interval. The far infrared radiation plate (20) is made of an aluminum alloy metal substrate (20).
Oven structure for Baumkuchen, which has a far-infrared emitting surface (20b) with a rough surface coating of metal oxide and far-infrared emitting material particles using a binder on the bottom surface of a).