JPH0530886A - Heat processing device - Google Patents

Abstract

PURPOSE:To obtain a heat processing device capable of readily changing shape of a combustion chamber. CONSTITUTION:Burners 1L and 1R having shape turned down at the corners and obtained by combining two flat fiber mat burners are supported rotatably to each shafts 5a and 5b. A link mechanism 3 is inserted between lateral burners 1L and 1R and when a horizontal shaft is advanced and retreated by turning a handle 4, lateral burners 1L and 1R are rotated (in mutually reverse direction) in interlock therewith and shape of a combustion chamber among these burners 1L and 1R and conveyer 2 is changed. Feed of gaseous fuel to these burners 1L and 1R is carried out by a flexible hose 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat processing apparatus suitable for heat processing such as browning of food surface.

[0002]

2. Description of the Related Art Ovens are used in food processing plants for heating and processing foods. In recent years, however, the use of a surface combustion burner (fiber mat burner) using a fiber mat in which fibers such as metal are laminated is used. Is being considered. This fiber mat burner sends a mixture of air and fuel gas from one side of the fiber mat and burns it at the surface layer on the other side to heat the surface layer itself, thereby efficiently radiating the energy of fuel gas to radiant heat. It is suitable for cooking with heat such as roast beef and hamburger steak.

Conventionally, this kind of heating process is carried out by placing food on a conveyor and passing it through a combustion chamber in which a surface combustion burner is arranged so as to face the surface of the food. The desired processing state is obtained by adjusting in advance the heating power, the distance between the burner and the food, and the like.

[0004]

However, in the conventional technique as described above, the arrangement of the burners in the heating and processing apparatus is fixed in advance depending on the food to be processed, and it is difficult to change the shape, so that the shape is different. There is a problem that the food cannot be heat-processed by the same device.

For example, when a flat food is targeted, the burner is arranged so as to face the upper surface of the food.
When targeting cubic foods, it is necessary to consider not only the top surface but also the side surface heating, and it is necessary to change the arrangement of the burners. However, in the conventional heating processing apparatus, the burner is fixed at a preset position, and the apparatus is stopped and the burner is rearranged each time the type of food is changed in the working process of one day. Is impossible. what if,
Even if you change the location, it will cause a great loss of time,
We cannot deal with the processing of real foods.

Therefore, in the case of processing foods having different shapes, it is necessary to equip each with a dedicated device, which lowers the operating efficiency of each device, secures an installation space, etc.
There were various incidental problems.

The present invention has been made in view of the above points, and an object of the present invention is to provide a heating processing apparatus in which the arrangement of burners (the shape of the combustion chamber) can be easily changed according to the object to be processed. It is what

[0008]

A heating and processing apparatus of the present invention has a combustion chamber in which a heating means for heating a target article such as food is arranged. As a means, there is provided a plurality of surface combustion burners having a "V" shaped combustion surface, the surface combustion burners being rotatably supported on different shafts, preferably for rotating the surface combustion burners from the outside. The rotating means is provided.

The above-mentioned "he" -shaped combustion surface means that a plurality of divided combustion surfaces are arranged in a V shape and that one continuous combustion surface is a "he" shape. It includes both the case of being molded into a shape.

[0010]

As described above, since the surface combustion burner used in the present invention has the "he" shaped combustion surface, one burner can operate from two directions depending on the opening angle of the "he" shape. Is heated. Therefore, if the burner is rotated so that the letter “F” is opened diagonally downward, it is possible to heat from both the upper and side directions, and the heating direction can be easily adjusted by the burner rotation amount. Adjusted.

Further, if the "H" character is opened right below, it is possible to heat only from above. At this time, the radiant heat (infrared ray) is incident on the upper surface of the target article not from directly above but at an angle corresponding to the opening angle of the "he" character. , No problem at all.

As shown in the embodiments described later, two V-shaped burners are arranged side by side and appropriately rotated about their respective axes, so that the shape of the combustion chamber formed by the two burners is changed. It is possible to easily change from a bell shape (tunnel type) to a flat shape. If the burner can be rotated from the outside, the shape of the combustion chamber can be changed even during combustion, and different items can be continuously heat-processed with a single device. .

[0013]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a central cross-sectional view showing the configuration of the essential parts of a food heating processing apparatus (oven) according to an embodiment of the present invention, FIG. 2 is a schematic side view of the apparatus of FIG. 1, and FIG. 3 is the apparatus of FIG. FIG.

In FIG. 1, above the heat-resistant belt conveyor 2 installed horizontally, two "he" -shaped surface combustion burners (hereinafter simply referred to as "he" -shaped burners) 1 are provided.
L and 1R are arranged side by side in the width direction of the conveyor 2, and a combustion chamber A is formed between the conveyor 2 and the "H" -shaped burners 1L and 1R. "He" shaped burners 1L, 1R
Is covered with a burner hood 9.

"H" shaped burner 1 in this embodiment
L and 1R are two tabular Faber mat burners (1a and 1b, 1c and 1d) that are combined so that their combustion surfaces form a predetermined angle and fixed by bars 3b and 3e (described later). The bars 3b and 3e are rotatably supported by shafts 5a and 5b at substantially the center of the horizontal bars. This "to"
The lengths of the L-shaped burners 1L and 1R (dimensions in the longitudinal direction of the conveyor 2) are appropriately set, but in a heating process such as a usual browning, about 30 to 150 cm is suitable.

Each of the fiber mat burners 1a, 1b, 1c, 1 constituting the above-mentioned "F" -shaped burners 1L, 1R.
In d, as shown in FIG. 3, the flexible hose 1
0 is connected, and the fuel gas premixed with air is sent from a cylinder or the like. Further, an igniting means (not shown) is provided so as to face the surface of the fiber mat, and an exhaust hole 8 for exhausting carbon dioxide and the like generated by combustion is opened at a substantially central portion of the burner hood 9. The exhaust hole 8 is equipped with a damper 8a for adjusting the exhaust flow rate.

A heater 7 for preheating is arranged below the conveyor 2 so as to face the lower surface of the conveyor 2. The heater 7 plays a role of increasing the heating effect of the fiber mat burners 1a, 1b, 1c, 1d by keeping the temperature inside the apparatus at a certain level or higher. If the device is large, it takes a long time to increase the temperature. Therefore, even when the work is interrupted due to the process, the burners 1a, 1b, 1
There is less energy loss by extinguishing only c and 1d and continuing heating by the preheater 7 (at this time, the conveyor 2 is rotated to avoid local heating).

In the present embodiment, the rotation means for rotating the above-mentioned "F" -shaped burners 1L and 1R is as follows.
A link mechanism 3 and a handle 4 are provided, and a shaft 3a is horizontally arranged above the combustion chamber A. One end (the left end on the paper surface) of the horizontal shuff 3a projects out of the burner hood 9 and can be moved back and forth by rotating a handle 4 attached to the end. The specific structure of the link mechanism 3 in this embodiment is as follows.

First, a "L" -shaped burner 1L on the left side of the paper
Is fixed to an inverted T-shaped bar 3b, and a locking member 6 with a groove 6a is attached to the end of the vertical bar of the bar 3b. The bar 3b and the horizontal shaft 3a are locked by a pin P1 that slides in the groove 6a, and the bar 3b rotates as the horizontal shaft 3a moves back and forth.

A bar 3c and a bar 3d, which are rotatably connected by a pin P3, are provided between the middle of the vertical bar of the bar 3b and the shaft 5c fixed at a predetermined position. , The bar 3c is rotatably locked to the bar 3b by a pin P2, and the substantially V-shaped bar 3d is rotatably locked to the shaft 5c at a V-shaped corner. Further, a substantially L-shaped bar 3e is rotatably locked by a pin P4 at the end of the horizontal bar portion of the bar 3d,
Another bar-shaped burner 1 is provided on the horizontal bar of the bar 3d.
R is fixed.

Next, the above-mentioned "H" -shaped burner 1L,
The operation of the link mechanism 3 when changing the arrangement of 1R, that is, the shape of the combustion chamber A formed by the burners 1L and 1R will be described. In FIG. 1, the state of the "H" -shaped burners 1L and 1R and the link mechanism 3 before the change is shown by a solid line, and the state after the change is shown by a dotted line.

Before the change, the two "H" -shaped burners 1L and 1R are symmetrically downwardly inclined (the left-side burner 1L is diagonally downward-right and the right-side burner 1R is It is fixed in a state in which the "he" character is opened (in the diagonally lower left direction), and a bell-shaped combustion chamber A is formed between the combustion surface of the "he" character type burners 1L, 1R and the conveyor 2. There is. In this state, the food having a substantially cubic shape is heated from above and from the side, and it is possible to carry out the processing for making the evenly-marked top and side surfaces almost evenly.

After the above-mentioned processing, when the flattened food such as hamburger or the like is to be marked only on the upper surface, the handle 4 is turned to move the horizontal shaft 3a to the right side of the drawing. Push forward. As a result, the inverted T-shaped bar 3b and the "H" -shaped burner 1L fixed to the bar 3b rotate clockwise about the shaft 5a as shown in the figure (the pin P1 is P '. In position 1, pin P2 is P'2
(Moved to the position), the "he" character-shaped burner 1L is in a state in which the character "he" is opened right below.

Also, as the bar 3b rotates, the pin P
3 moves to the position of P'3, and further the bar 3d having a substantially V shape
Rotates about the axis 5c (the pin P4 moves to the position P'4). As a result, the substantially L-shaped bar 3e and the "he" shaped burner 1R on the right side of the drawing, which is fixed to the bar 3e, rotates counterclockwise around the shaft 5b, and the "he" shaped burner 1
The letter “he” of R is opened right below.

By the above operation, the two "H" -shaped burners 1L and 1R are symmetrical with respect to the respective shafts 5a and 5R.
Rotated around b, the shape of the combustion chamber A is changed from a bell shape to a flat shape. This operation can be easily performed by operating the handle 4 provided outside even during combustion.

Therefore, by using the apparatus of the present embodiment described above, it is possible to continuously perform the heating process even when the shape of the food is frequently changed, and only the upper surface is heated.
Various heating processes such as heating both the upper surface and the side surface, heating mainly on the side surface, and the like can be performed according to the target food. At this time, the outputs of the respective fiber mat burners 1a, 1b, 1c, 1d forming the "V" -shaped burners 1L, 1R do not necessarily have to be the same, and may be adjusted individually.

In the above-described embodiment, two narrow fiber mat burners 1a, 1b, 1c and 1d are combined to form "F" -shaped burners 1L and 1R. The "F" -shaped burner may be a single burner in which the combustion surface is formed in a substantially V shape, or a hemispherical (burning surface is concave) burner may be used. The opening angle of the V-shape and the radius of curvature of the spherical surface may be appropriately set in consideration of the size and shape of the target food, the processing specifications (how to make the dark marks), and the like.

Further, in FIG. 1, two "he" shaped burners 1L, 1R are rotatably supported by the left and right shafts 5a, 5b, but if necessary, three or more "he" shaped burners 1L, 1R are supported. The burners may be arranged at appropriate positions. At this time, the "H" -shaped burners may be arranged in the horizontal direction at appropriate intervals as shown in FIG. 1, or the conveyor 2 may be constituted by a coarse wire mesh or the like. It is also possible to dispose a "V" -shaped burner on the side (the V-shaped burner is open upward).

Of course, it is needless to say that two or more burners may be supported on one shaft, and the "F" -shaped burners 1L and 1R of this embodiment are divided in the longitudinal direction and rotated individually or simultaneously. You may make it the structure made to let. In this way, it is possible to change the shape of the combustion chamber depending on the position in the longitudinal direction, for example, mainly heating the side surface of the food in the preceding stage,
It is also possible to perform processing such as heating only the upper surface (after applying a source or the like if necessary) at a later stage.

Further, in the example of FIG. 1, the left and right "he" -shaped burners 1L and 1R are operated symmetrically by the link mechanism 3 and the handle 4, but in order to rotate the "he" -shaped burner. The mechanism is not limited to that of FIG.
For example, each "H" -shaped burner is fixed to the rotary shaft, the tip of the rotary shaft is extended outside the burner hood to provide a lever, and each shaft is individually rotated by operating the lever. May be. In any case, it is desirable to use a flexible hose for the pipe that supplies the fuel gas to each “F” -shaped burner so that it can follow the rotation of the burner.

Further, in the above embodiment, the heating processing apparatus of the type in which the food is placed on the conveyor and moved is shown, but the present invention can also be applied to a batch type heating processing apparatus.

Further, the heating and processing apparatus of the present invention can be applied not only to the heating and processing of foods, but also to, for example, the drying process of coated objects.

[0033]

As described above, in the heating and processing apparatus of the present invention, since a plurality of "H" -shaped burners are rotatably supported on different shafts, the "H" -shaped burners are rotated. This makes it possible to easily change the shape of the combustion chamber even during combustion. That is, according to the present invention, even when the shape or the like of an object to be processed (for example, food) is frequently changed, the same device can be used to efficiently and appropriately perform heating. Therefore, it is not necessary to prepare a large number of similar devices as in the conventional case, and the burden on the equipment is significantly reduced.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a configuration of a main part of a heat processing apparatus according to an embodiment of the present invention.

FIG. 2 is a schematic side view of the heat processing apparatus of FIG.

FIG. 3 is a partial front view of the heat processing apparatus of FIG.

[Explanation of symbols]

1L, 1R "H" shaped burner 1a, 1b, 1c, 1d Fiber mat burner 2 conveyors 3 link mechanism 3a horizontal shaft 4 handles 5a, 5b rotating shaft 6 locking member 6a groove 7 Preheater 8 exhaust holes 9 burner hood 10 Flexible hose 11 food

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Tamotsu Hayase             3-30-4 Oyabe, Yokosuka City, Kanagawa Prefecture

Claims (3)

[Claims] 1. A heating and processing apparatus having a combustion chamber in which heating means for heating a target article is arranged, the heating means includes a plurality of surface combustion burners each having a "H" -shaped combustion surface. A heating and processing apparatus characterized in that a surface combustion burner is rotatably supported on different shafts. 2. The heating processing apparatus according to claim 1, wherein the target article is a food. 3. The heat processing apparatus according to claim 1, further comprising rotating means for rotating the surface combustion burner from the outside.