JP3639129B2 - Oven equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to improvements in gas ovens such as fixed type and tunnel type used in cooking, baking processing and the like of confectionery, bread making, etc., especially far and near infrared rays generated from a heat source such as dough material on a hot plate The present invention relates to an oven apparatus that uniformly irradiates a workpiece, does not cause uneven baking, reduces the amount of water evaporation, and provides good surface baking color, internal flexibility, and the like, and is easy to maintain.
[0002]
[Prior art]
Conventionally, gas oven devices are generally used for cooking and baking of confectionery, bread making, etc. As an example, far and near infrared rays generated from far infrared Schwann burners arranged on the left and right of the oven kiln are used. By reflecting with a reflection mechanism arranged on the inner surface of the ceiling of the oven kiln, a workpiece such as bread or castella on the hot plate is irradiated and heated. However, since it was relatively difficult to adjust the entire workpiece to be irradiated evenly upon reflection by the reflection mechanism, the present inventor has disclosed Japanese Patent Application Laid-Open No. 6-169678 (Patent No. 2821965). No.) proposes a reflection mechanism in which a plurality of reflecting rods having a curved surface are arranged in an oven kiln. In other words, when this reflector type reflection mechanism is used, convection inside the oven kiln makes it possible to radiate heat transfer evenly over the entire workpiece compared to a convection kiln that conducts heat inside the kiln, and as a result The finished product has less moisture evaporation than the convection kiln, the surface is easy to be baked, and even if a thick crust is formed on the outside, the inside should be flexible. Was made.
[0003]
[Problems to be solved by the invention]
However, the above-described conventional reflecting rod type reflecting mechanism is constructed by mounting the reflecting rod on the front and rear of the oven kiln by engaging both ends with a chain mounted on the front and rear of the oven kiln, respectively. Is. For this reason, the chain itself was not sufficiently heat resistant, so it expanded thermally in a high temperature environment in the oven kiln, and the initial placement position could shift, and further, the reflecting rod itself could expand, bend, warp, etc. It sometimes happened. In some cases, different types of bread dough, confectionery dough, etc. are placed on the hot plate at the same time to perform different heat treatments, or the heating temperature is different before and after the entrance of the oven kiln, etc. Even if a corresponding adjustment is necessary, it is difficult to finely adjust the reflectance in accordance with the temperature distribution and the like that differ depending on the arrangement position and location in such a case.
[0004]
Therefore, the present invention was created in view of the conventional circumstances as described above, and is an improvement of the support structure of the reflecting rod material in the reflecting mechanism of the reflecting rod type, under the high temperature environment in the oven kiln. Even if the reflecting bar itself expands, it does not cause bending, warping, etc., and the reflectance is stabilized, and various dough materials placed on the hot plate are further used in the oven kiln. An object of the present invention is to provide an oven apparatus that can adjust the partial reflectance corresponding to the heat distribution and the like that are different from each other at the position, can enhance the livestock heat effect, and can be easily maintained.
[0005]
[Means for Solving the Problems]
In order to solve the above-described problems, in the present invention, the far and near infrared rays from the heat source (3) are reflected by the reflecting mechanism 10 on the workpiece W placed on the hot plate 2 in the oven kiln 1. Thus, the reflection mechanism 10 includes a plurality of reflecting members 17 whose surfaces are inserted and supported by a plurality of supporting members 11 arranged and supported in the oven kiln 1. is there.
The reflection mechanism 10 includes a plurality of mounting portions 15 arranged in the oven kiln 1 by a support member 11 formed symmetrically on the inner side surface of the side wall facing the oven kiln 1 and the mounting portions 15 symmetrically arranged. The support bar 16 is supported by the support bar 16, and the hollow reflection member 17 having a curved outer surface that is supported by being inserted outside the support bar 16.
The reflection member 17 can be detachably attached to the support bar 16, and can be formed with a different reflectance on at least a part of the outer surface thereof. The surface is mirror-finished or is coated with an appropriate reflecting material, and the rough surface or mirror-finished or coated at this time is appropriately adjusted.
Furthermore, the support bar 16 can be formed in a hollow shape.
[0006]
In the oven apparatus according to the present invention configured as described above, the support bar 16 in the reflection mechanism 10 supports the reflection member 17 inserted and supported therein in the oven kiln 1, and the reflection member 17 itself. Can be aligned and held without being affected by heat shrinkage, heat distortion, etc. caused by the heating atmosphere generated in the oven kiln 1.
At least a part of the outer surface of the reflecting member 17 having a different reflectance reflects and changes the reflectance of the far / near infrared rays from the heat source (3), thereby allowing the workpiece W placed on the hot plate 2 to adjust. The degree of reflection can be adjusted freely and delicately, and also with the choice of not disposing the detachable reflecting member 17. Eliminate uneven distribution of different heat distribution, uneven baking, etc.
Each of the reflecting members 17 arranged between the supporting members 11 is supported at a predetermined position in the oven kiln 1 by a support bar 16 supported between the mounting portions 15 at the symmetrically arranged positions. Various cooking and baking conditions for the workpiece W are adjusted and set by changing the above.
A predetermined gap is formed in the reflecting member 17 inserted and supported by the support bar 16, and the inside of the support bar 16 is also hollow, so that the gap is generated by convection generated in the oven kiln 1. A hot pool is generated, and a livestock heat space in the oven kiln 1 is formed to bring the oven kiln 1 itself into a livestock heat state.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. Reference numeral 1 shown in the drawing is a heat-insulating oven kiln formed in a substantially sealed structure, for example, an open / close door that is not shown on the front side. The workpiece W, which is various dough materials to be cooked and baked, is placed on the hot plate 2 arranged at the bottom. On the left and right sides of the oven kiln 1, for example, an upper heat source 3 such as an infrared schwann burner facing upward is disposed, and below the hot plate 2 is a lower fire burner for heating the hot plate 2 itself. A lower heat source 4 is arranged. The inside of the oven kiln 1 is heated by these upper and lower heat sources 3 and 4 at, for example, around 300 ° C., and in particular when the upper heat source 3 is heated, a predetermined far / near infrared ray is provided by a reflection mechanism 10 described later disposed on the upper portion of the oven kiln 1. The workpiece W on the hot plate 2 is irradiated and heated, and a predetermined heating atmosphere is formed by generating convection in the oven furnace 1.
[0008]
The reflection mechanism 10 includes a plurality of mounting portions 15 arranged, and the support member 11 that is symmetrically arranged on the front and back side walls of the oven kiln 1, for example, and the front and rear mounting portions 15 respectively. A small-diameter support bar 16 supported along the front and rear, and a hollow predetermined large-diameter reflecting member 17 whose outer surface supported by being inserted outside the support bar 16 is curved; Is provided. Although not shown, the reflecting members 17 may be arranged along the left-right direction of the oven kiln 1 depending on the case. In this case, the reflecting members 17 are symmetrically supported on the inner side surfaces of the left and right side walls of the oven kiln 1. The member 11 is arranged and formed, and the support bar 16 is also along the left-right direction of the oven kiln 1.
[0009]
The support member 11 is positioned at or near the upper part in the oven kiln 1 that supports and supports the reflecting member 17, and is fixedly disposed by, for example, screwing, welding, or the like. The upper central part and the upper left and right side parts are respectively divided and arranged. As shown in FIG. 2, the supporting member 11 itself is a connecting piece 13 which is bent substantially horizontally at the lower edge of the fixing piece 12 which is abutted and fixed to the inner side surfaces of the front and rear side walls of the oven kiln 1 by screws or the like. Further, the mounting support piece 14 that is substantially parallel to the fixing piece 12 is further bent to form a substantially groove shape in cross section, and the mounting support piece 14 has a groove shape or a hole shape that is open, for example, at its upper edge. The plurality of mounting portions 15 are arranged.
[0010]
Further, as shown in FIG. 1, in the support member 11 located in the center portion, the attachment support piece 14 is formed in a substantially horizontally long rectangular shape, and the bottom edge position of each attachment portion 15 is substantially the same height position. However, it can be different if necessary. In the support members 11 located on the left and right side portions, the attachment support pieces 14 are gradually lowered as they reach the sides, and are formed in a substantially trapezoidal shape with the upper edge being curved. The bottom edge position is gradually lowered as it goes to the side, and the continuous arrangement form is curved. This curved continuous arrangement form corresponds to the case where the arrangement of the reflective bar 17 supported via the support bar 16 is not a curved arrangement such as an inclined shape or a horizontal shape. The mounting support piece 14 itself is not limited to a trapezoidal shape.
[0011]
The support bar 16 is supported so as to be bridged between the support members 11 provided before and after the oven kiln 1 by the mounting portion 15, and is formed of, for example, a hollow stainless pipe material having an outer diameter of about 10 mm. Yes. The support bar 16 itself is fitted into the mounting part 15 of the support member 11 so as to be bridged between the front and rear support members 11, and is formed as a groove-shaped mounting part 15 as shown in the figure. The end of the material 16 can be fitted directly. The length of the support bar 16 itself is provided with an extra length corresponding to the groove width because the support member 11 itself has a substantially groove shape, so that the support bar 16 can slide in the length direction. Even if it exists, it has considered so that it may not fall from between the support members 11 currently supported across, and weight reduction and livestock heat can be achieved by making it hollow.
[0012]
The reflecting member 17 is formed of, for example, an aluminum pipe member having a larger diameter than that of the support bar 16 and has an outer diameter of, for example, about 19 mm. The reflecting member 17 extends between the support members 11 around the oven kiln 1. The support rod 16 is inserted into and supported by the passed support rod 16 and the reflection member 17 is supported by using the support rod 16 as a core material, so that the insertion support state is configured, for example, as a double tube (see FIG. 3).
[0013]
The reflecting member 17 reflects the radiant heat from the upper heat source 3 by the outer surface thereof to heat the workpiece W on the hot plate 2, and whether or not the workpiece W is reflected. Adjustment of reflectivity, reflection mode, etc. can be selected. That is, when the reflecting member 17 is not arranged without being supported by the support bar 16, the reflecting action cannot be obtained. For example, when the reflection is too strong or a part that does not need to be reflected is set. It is assumed that the reflecting member 17 itself is not disposed. When the reflectance is reduced, the outer surface of the reflecting member 17 is mirror finished or close to it. Conversely, when the reflectance is increased, the outer surface of the reflecting member 17 is finished with a rough surface. Of course, the adjustment of the reflectance is obtained by the degree of rough finishing of the outer surface of the reflecting member 17. A portion having a density area, a plurality of reflecting members 17 having different outer surface coarse densities arranged and supported on one support bar 16 (see FIG. 4A), or a portion where no reflecting member 17 is disposed. Or can be formed (see FIG. 4B). In addition, the outer surface of the reflecting member 17 is not subjected to such a rough surface finish, and special processing such as so-called far-red coating that irradiates far and near infrared rays by baking treatment of ceramic material, carbon black (graphite) material, etc. Of course, the reflectance can be adjusted freely even partially in this case.
[0014]
Although the reflecting member 17 itself is formed in a circular pipe shape in the illustrated example, it may be formed in a square pipe shape, partially in a circular shape or a non-circular shape, or with a different diameter. It is also possible to do. Further, the arrangement is not limited to a plurality or a single arrangement in the upper central part and upper left and right side parts as in the illustrated example, but may be any one of them, asymmetric, etc. In short, it can be freely adjusted and changed depending on the reflectivity, the presence / absence thereof, the uneven distribution of the reflectivity, etc., which is a reflection mode for the workpiece W.
[0015]
Although not shown, it is possible to incorporate a steam generator using the upper heat source 3 or the like in the oven kiln 1 and give a plump texture by applying appropriate moisture to the workpiece W. be able to.
[0016]
Next, an example of the use of this will be described. As shown in FIG. 1, a work W such as bread or castella to be cooked and baked is placed on the hot plate 2, while corresponding to the work W. The arrangement form of the reflecting members 17 is appropriately selected depending on the presence / absence of reflection and the magnitude of the reflectance. That is, normally, a support bar 16 is mounted and supported between the support members 11 arranged before and after the oven kiln 1, and a reflection member 17 is inserted and supported for a portion that requires reflection, and the reflectance is set. The reflecting member 17 having a rough surface finish is inserted and supported in a portion where large and strong reflection is required, and the reflecting member 17 having a mirror finish is inserted and supported in a portion requiring weak reflection. When heating by the upper heat source 3, far / near infrared rays generated from the upper heat source 3 are reflected by the respective reflecting members 17 of the reflecting mechanism 10 and irradiated onto the workpiece W on the hot plate 2. At this time, since the outer surface of the reflecting member 17 is curved, far-infrared rays from the upper heat source 3 are scattered without being concentrated in a specific area, and the entire surface is irradiated on the hot plate 2 almost uniformly. Further, the irradiation is performed not only from directly above the workpiece W but also from the side surface direction, and the reflectance strength, presence / absence, uneven distribution, and the like are freely adjusted.
[0017]
In the above description of the embodiment, although it is assumed that it is implemented in a stationary gas oven, it may be implemented in a so-called tunnel type gas oven provided with a transport system by circulation drive such as a chain. It can be used not only for confectionery and bread making, but also for other types of heating devices, heating furnaces, and the like.
[0018]
【The invention's effect】
Since the present invention is configured as described above, the reflecting member 17 is inserted and supported by the support bar 16 even when the reflecting member 17 itself expands under a high temperature environment in the oven kiln 1. There is no occurrence of bending, warping, or the like, and the reflectance or the like can be stabilized. In addition, the workpiece W, which is a variety of dough materials arranged on the hot plate 2, further adjusts the sub-reflectance freely corresponding to different heat distributions at different positions in the oven kiln 1 and makes delicate adjustments. This makes it possible to eliminate uneven burning and the like, and also enhances the effect of livestock heat and facilitates maintenance.
[0019]
That is, in the present invention, a reflection mechanism 10 that reflects far- and near-infrared rays from the heat source (3) to the workpiece W placed on the hot plate 2 in the oven kiln 1 is arranged in the oven kiln 1. This is because the surface inserted and supported by the plurality of supported support members 11 is provided with a plurality of reflection members 17 having a curved shape, and thereby, the reflection member generated by being exposed to a high-temperature heating atmosphere. As a result, it is possible to correct the influence of heat shrinkage, heat distortion shape, etc. on the support rod 16 along the support bar 16, and as a result, the reflection action by the reflection member 17 can be stabilized, and there is little room for failure and maintenance. Can be made easier.
[0020]
Since the reflecting member 17 in the reflecting mechanism 10 is detachably attached to the support bar 16 and is formed with a different reflectance on at least a part of its outer surface, the reflecting member 17 is formed on the workpiece W on the hot plate 2. On the other hand, if burning unevenness or the like occurs, the removal, replacement, or movement / placement exchange with an outer surface having a different reflectance, such as a mirror-finished portion or a rough-finished portion, is performed throughout or It can be dealt with by even partially. Therefore, for example, it can be finely adjusted so as to eliminate baking unevenness and the like generated at the entrance and the back of the oven kiln 1, and the same cooking, the entire uniform in the baking process, or conversely, the dough material by partial uneven distribution, etc. It can handle differences.
[0021]
In addition, the reflection mechanism 10 includes a plurality of mounting portions 15 arranged, and the oven kiln 1 includes a support member 11 that is symmetrically arranged and formed, for example, in front of and behind the oven kiln 1 and a symmetrically arranged mounting portion 15. Since the support bar 16 supported inside and the hollow reflection member 17 whose outer surface is inserted and supported by the support bar 16 are curved, the reflection member 17 itself is attached and detached and supported. The inside of the oven kiln 1 can be finely adjusted to an atmosphere such as predetermined heating reflection and convection by changing and selecting the interval and the number between them, and can cope with various workpieces W to be cooked and baked.
[0022]
Furthermore, since a predetermined gap is formed in the hollow reflecting member 17 inserted and supported by the support bar 16, such a gap generates a heat accumulation by convection generated in the oven kiln 1. The heating in the oven kiln 1 in combination with the support rod 16 being hollow can make each of them an animal heat space, and the oven kiln 1 itself can be brought into an animal heat state.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention.
FIG. 2 is a schematic perspective view of the main part of the reflection mechanism.
FIG. 3 is a cross-sectional view of the main part of the reflection mechanism.
FIGS. 4A and 4B are side views showing different aspects of the arrangement of reflection members of the reflection mechanism.
[Explanation of symbols]
W ... Workpiece 1 ... Oven kiln 2 ... Heat plate 3 ... Upper heat source 4 ... Lower heat source 10 ... Reflection mechanism 11 ... Support member 12 ... Adhering piece 13 ... Connecting piece 14 ... Mounting support piece 15 ... Mounting portion 16 ... Support rod Material 17 ... Reflective member

Claims (4)

  In an oven apparatus in which far and near infrared rays from a heat source are reflected by a reflection mechanism and heated on a workpiece placed on a hot plate in the oven kiln, the reflection mechanism has a plurality of mounting portions arranged. The support member is formed symmetrically on the inner side surface of the side wall facing the oven kiln, the support bar supported in the oven kiln by the symmetrically arranged mounting parts, and inserted outside the support bar. An oven apparatus comprising: a hollow reflecting member whose outer surface supported by bending is curved.   The oven device according to claim 1, wherein the reflecting member is detachable from the support bar.   The oven device according to claim 1 or 2, wherein the reflection member is formed with a different reflectance on at least a part of an outer surface thereof.   The oven device according to any one of claims 1 to 3, wherein the support bar is formed in a hollow shape.

Images