JPH088896B2 - Baking equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for baking frozen foods and food species, and can be used, for example, for baking meat patties (a flat ground minced meat product used for hamburgers).

[0002]

2. Description of the Related Art An apparatus of this type developed in-house has already been disclosed in Japanese Patent Application No. 5-3431.
This device has a pair of firing plates each having a thin plate-shaped ceramic heater on one surface of a reinforcing plate, and a drive means for moving one firing plate toward and away from the other firing plate. The frozen meat patties placed between the heaters are heated under pressure.

This device has low power consumption, a short rise time, can be miniaturized, the heat penetrates into the inside of the food or food species without much charring, and the degree of baking and cooking does not differ depending on the portion of the meat patty. , Which has an excellent effect. However, for example, 2
When -18 ° C frozen meat patties are brought into contact with the heater surface heated to 32 ° C and cooked, the heater surface is subject to a sudden temperature change of 250 ° C (hereinafter referred to as thermal shock), Ceramic heater 9 in a short period
The problem that 1 breaks occurs.

The problem of shortening the life caused by this thermal shock similarly occurs in other types of heaters.

[0005]

Therefore, it is an object of the present invention to provide a baking cooking apparatus which has the functions of the prior art and can be used for a long period of time.

[0006]

The present invention is a baking cooking apparatus having a pair of baking plates 1 and 1 and a drive means 2 for moving the baking plates 1 and 1 closer to and away from each other. The opposed surfaces of 1, 1 are composed of a metal heated plate 10 having a high thermal conductivity, and the back surface is composed of a thin plate heater 11, and the heated plates 10, 10 side surfaces are frozen foods.・ It is used as a heating surface for pinching foods.

A metal heat storage plate 3 is provided on the back side of the heater 11 in the baking plates 1, 1, and the heat storage plate 3 is also provided.
It is preferable that a heat insulating plate for preventing heat radiation is provided on the back side of, and a film of a far-infrared radiation substance is further formed on the surface of the heated plates 10 and 10 for pinching and heating frozen foods / food types.

[0008]

The present invention has the following actions. In this baking apparatus, the facing surfaces of the baking plates 1 and 1 are made up of a heated plate 10 made of metal having high thermal conductivity, and the back surface side is made up of a thin plate-like heater 11, respectively. Heated plate 1
Since the side surfaces 0 and 10 are the heating surfaces for sandwiching frozen foods and foods, the heater 11 serves as a mere heat source for the heated plates 10 and 10.

In Japanese Patent Application No. 5-3431, a ceramic heater is used as a heat source in expectation of the far infrared ray effect, but in the present invention, a far infrared ray emitting material film is formed on the side of the plate 10 to be clamped and heated. Since the far infrared ray effect is exhibited by forming the ceramic heater, it is not necessary to use the heater as a ceramic heater unless other functions are largely different from those of the ceramic heater.

On the other hand, since the plate to be heated 10 is made of a metal having a high thermal conductivity, the frozen foods in the plate to be heated 10
The nipping and heating surface of the food type is quickly heated by the heater 11. Therefore, the rise time is as short as that of the baking apparatus described in the section of the prior art. In addition, the basic structure of the heater is the same as that of a ceramic heater as a heat source (thin plate shape, high watt density, sufficient durability against frequent ON / OFF of temperature for temperature control, Other functions are the same as those of the baking cooking device described in the section of the related art, as long as the heating rate is high).

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the present invention will be described below with reference to the drawings shown as embodiments. This embodiment is a frozen meat patty cooking system using the baking apparatus of the present invention (hereinafter, frozen meat patty will be simply referred to as patty in the Examples section), and as shown in FIG. And a take-out device 6 for taking out the patties P from the frozen stocker 5 one by one, and the patties P taken out from the frozen stocker 5 by the take-out device 6 are sent to the patty baking cooking device A, and further after a fixed time from the start of baking cooking. It is composed of a transfer device 7 for discharging the patty P from the patty baking apparatus A, and a control device (not shown) for controlling the device and the like.

Each device will be described in detail below. [Refrigerator Stocker 5] As shown in FIG. 1, the refrigerator stocker 5 is provided with a casing 50 having a rectangular parallelepiped shape, a lid 51 attached to the upper portion of the casing 50 for swinging and opening and closing, and is provided in the casing 50 to form a stacked state. And a magazine (not shown) that holds a large number of patties P. The lid 51 can be opened and closed by a torque actuator TA at a timing described later.

The patty discharge port 52 formed on the upper surface 50a of the casing 50 prevents the cold air in the frozen stocker 5 from escaping too much when the lid 51 is in the "open" state. Is also set to a slightly larger diameter. [Ejecting Device 6] As shown in FIG.
Patty table 60 provided in the lower area of the magazine
And a threaded rod 6 vertically provided on the lower surface of the patty mounting table 60.
1 and a linear motor 6 for moving the screw rod 61 up and down.
2 so that the patty table 60 can be lifted by the thickness of the patty P (this thickness is one pitch) at a timing described later by driving the linear motor 62 according to a command from the CPU of the control device. It has a unique structure.

The proper take-out position of the uppermost patty P is set at a position where the lower surface of the patty P is slightly above the upper surface 50a of the casing 50, as shown in FIG. [Patty Baking Cooking Apparatus A] The patty baking cooking apparatus A includes a pair of opposed upper and lower baking plates 1, 1 as shown in FIG.
And a lifting cylinder 20 (corresponding to the driving means 2 in the column of means) for moving the upper baking plate 1 up and down with respect to the lower baking plate 1, and are arranged in the vicinity of the freezing stocker 5. .

As shown in FIG. 3 and FIG. 5, the upper and lower firing plates 1 each have a structure in which a thin plate-shaped heater 11 is sandwiched between two metal plates, and the metal plates on the side facing each other are disposed. Heated plates 10 and 10 are provided, and metal plates on the side facing each other are used as the heat storage plate 3. Although not shown, far-infrared radiation material (for example, Al ₂
A sprayed coating of O ₃ + TiO ₂ : alumina titania) is formed.

As shown in FIG. 4, the heater 11 has a thin plate structure and its thickness is set to about 1 to 3 mm. On the other hand, the terminal lp of the heater 11 is, as shown in FIG. Two through holes 30 provided in the central portion of the heat storage plate 3
It is made to project from. The heated plate 10 is shown in FIG.
As shown in (4), it is made of a rectangular copper plate (in addition, a metal having a high thermal conductivity, such as an aluminum plate can be used), and its thickness is set to about 5 mm.
A teflon film (not shown) is additionally provided on the pressing surface of the heated plate 10 in order to prevent it from being directly soiled.

The heat storage plate 3 has a thickness of 5 as shown in FIG.
The heater 11 is made of a copper plate having the same shape as the plate 10 to be heated (other metals can be used), and the heater 11 is housed in a recess provided therein. In addition, it is preferable to attach a heat insulating plate on the back side of the heat storage plate 3 in order to prevent the heat radiation from occurring. In this embodiment, the heat generation amount of the heater 11 is controlled by interlocking the energization time to the heater with the pulse width transmitted from the pulse generator,
The heater is energized (ON) when the pulse is transmitted.
Therefore, the heater is set to the non-energized state (OFF) while the pulse is not transmitted. That is, when increasing the heat generation amount, as shown in FIG. 7, a pulse PLS having a long pulse width is transmitted to increase the energization time within a fixed time, and conversely, when decreasing the heat generation amount, it is shown in FIG. As described above, the pulse having a short pulse width is transmitted to shorten the energization time during a certain time. In other words, in this example,
The heater temperature is controlled by controlling the energization time for applying a constant voltage to the heater.

Further, in this embodiment, before the putty P is put in, a pulse PLS having a short pulse width is emitted to reduce the ratio of energization time as shown in FIG. In order to supply a sufficient amount of heat to the heated plate 10 to supplement the amount of heat taken away, a pulse PLS having a long pulse width is emitted to increase the ratio of energization time as shown in FIG. The switching of the pulse width is automatically controlled by the control device.

Further, in any state, when the heater is heated to the controlled temperature, the upper limit temperature sensor reacts and a signal is sent to the control device, whereby the heater is de-energized. The desired controlled temperature is always maintained. [Transfer Device 7] As shown in FIG. 1, the transfer device 7 has a belt 71 stretched between a pair of pulleys 70, 70 and one of the pulleys 70 is driven by a stepping motor 72. Belt 75 and holder 75
The shifting arm 73 attached via the is horizontally moved. In order to stably move the shifting arm 73 in a horizontal posture, that is, to prevent the tip portion from hanging down, as shown in FIG. 6 and FIG. And the upper and lower plates of the holder 75 are provided with the plate-shaped guide 74.
4 is sandwiched.

As shown in FIG. 2, the shifting arm 73 is made of a plate that is slightly thinner than the patty P, and as shown in FIGS. 1 and 6, the outer contour of the patty P from the tip to the middle. An arc-shaped portion 73a that coincides with the uppermost patty P taken out from the freezing stocker 5 is formed.
While being pushed by the arcuate portion 73a in the middle of the thickness, the material is transferred to the patty baking cooking apparatus A.

In this patty cooking system, the patty P taken out from the freezing stocker 5 is slidly transferred to the patty baking cooking device A by the above-mentioned shifting arm 73, and after a certain period of time from the start of baking cooking, the patty baking cooker is operated. In order to slide out the patty P from A, as shown in FIG. 2, a slide table ST and a finished product table KT whose upper surfaces (transfer surfaces) are aligned with the upper surfaces of the casing 50 and the lower baking plate 1 are provided. I am letting you. [Operation Timing of Torque Actuator TA, Linear Motor 62, Lifting Cylinder 20, Stepping Motor 72] These operations are sequence-controlled by the CPU of the control device as follows. First, the torque actuator TA operates, and the lid 51 of the freezing stocker 5 changes from the “closed” state to the “open” state. When the "open" state of the lid 51 by the torque actuator TA is confirmed (for example, an optical sensor can be used), the linear motor 62 is activated, and the patty mounting table 60 on which the patty P is mounted is raised. And the patty mounting table 60
When the uppermost patty P is ejected from the patty outlet 52 of the casing 50 and reaches the proper position, it is confirmed (for example, an optical sensor can be used) and the linear motor 6
2 stops and the rise of the patty mounting table 60 is stopped, and the stepping motor 72 is activated at the same time or immediately thereafter. With the above operation of the stepping motor 72, the uppermost patty P is moved to an appropriate position of the patty baking and cooking apparatus A by the shifting arm 73. The transfer of the patty P to the proper position is executed by utilizing the characteristics of the stepping motor 72 (the characteristics in which the rotation angle and the rotation speed of the output shaft of the motor are determined by the number of pulses input to the motor). When the patty P arrives at the proper position of the patty baking and cooking apparatus A and this "arrival" state is confirmed (for example, an optical sensor can be used), the torque actuator TA operates and the lid 51 of the freezing stocker 5 becomes " When the "open" state is changed to the "closed" state, the elevating cylinder 20 is activated, the upper firing plate 1 is lowered, and the patty P is pinched by the upper and lower firing plates 1, 1. The calorific value of the heater 11 changes from the “small” state to the “large” state, and the sandwich heating heating of the patty P is started by the upper and lower baking plates 1, 1. When a certain period of time (the time required to properly bake the patties P) elapses, the heat generation amount of the heater 11 changes from the “large” state to the “small” state, and the lift cylinder 20 is activated. The firing plate 1 is raised. When the upper firing plate 1 comes to the raised position and is confirmed, the stepping motor 72 is activated, the baked patty P is discharged to the finished product table KT, and the torque actuator TA is activated. The lid 51 changes from the “closed” state to the “open” state. When the "open" state of the lid 51 is confirmed, the stepping motor 72 is rotated in the reverse direction, and moves back to the original position, that is, above the freezer stocker 5. The operations as described above are repeated so that the patties P are baked efficiently and continuously.

[0022]

From the contents described in the operation, it is possible to provide the baking cooking apparatus which has the function of the prior art and can be used for a long period of time.

[Brief description of drawings]

FIG. 1 is an external perspective view of a frozen meat patty cooking system using a baking apparatus according to an embodiment of the present invention.

FIG. 2 is a side view of the frozen meat patty cooking system.

FIG. 3 is an external perspective view of a baking plate of the frozen meat patty baking apparatus.

FIG. 4 is a perspective view of a heater used in the frozen meat patty baking apparatus.

FIG. 5 is a perspective view showing an attached state of a heated plate and a heater in the frozen meat patty baking apparatus.

FIG. 6 is a top view of a main part of the frozen meat patty cooking system.

FIG. 7 is a diagram showing a pulse that determines the heat generation amount of the heater, and is a diagram when the width of the pulse is large.

FIG. 8 is a diagram showing a pulse that determines the heat generation amount of the heater, and is a diagram when the width of the pulse is small.

[Explanation of symbols]

 1 Firing Plate 2 Driving Means 3 Heat Storage Plate 10 Heated Plate 11 Heater

Claims (5)

[Claims] 1. A pair of firing plates 1, 1 and the firing plates 1,
1 is a baking and cooking apparatus having a driving means 2 for moving them toward and away from each other, wherein the facing surfaces of the baking plates 1 and 1 are heated by a metal heated plate 10 having a high thermal conductivity, Is constituted by a thin plate-shaped heater 11, and the side surfaces of the plates to be heated 10 and 10 serve as a pinching and heating surface for frozen foods / food types. 2. The baking apparatus according to claim 1, wherein a metal heat storage plate 3 is provided on the back side of the heater 11 of the baking plates 1, 1. 3. The baking cooking apparatus according to claim 1, wherein a heat insulating plate for preventing heat radiation is provided on the back side of the heat storage plate 3. 4. Frozen food on the heated plates 10, 10.
The baking apparatus according to any one of claims 1 to 3, wherein a film of a far-infrared emitting substance is formed on the surface of the food product under pressure. 5. The baking cooker according to claim 1, wherein the heater 11 is energized in accordance with the magnitude of the pulse width transmitted from the pulse generator. apparatus.