JPS6342514B2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] This invention relates to rapid cooling (including freezing) of foods, etc.
This relates to a cooling device that performs.

[Prior art]

A conventional device of this type is shown in FIG. In the figure, 1 is an object to be cooled such as surimi, 2 is frozen bread that stores 1, and 3 is a low-temperature container that holds the frozen bread between the top and bottom. 5 is an inlet pipe for introducing the low temperature cooling fluid 9, and 6 is an outlet pipe. 4 is the above 5 and 6
and 3 are connected to each other to prevent the low-temperature cooling fluid 9 from leaking. Reference numeral 8 denotes a weighting device that presses the frozen pan 2 against the lower fixed bed 7 in order to enhance the effect of cooling the object 2 from above and below with the low-temperature fluid 9.

Next, the operation will be explained.

A frozen pan 2 filled with an object to be cooled 1 is inserted between cryogenic containers 3 by input.

When the insertion is completed, a load is applied to the weighting device 8, and the flexible tube 4 is displaced to move the frozen pan 2 towards the fixed bed 7.
Insert.

Thereafter, the object to be cooled 1 is cooled by the low-temperature cooling fluid 9 sent by a liquid feeder (not shown) sequentially flowing through the introduction inlet pipe 5, the low-temperature container 3, and the outlet pipe 6.

When cooling is completed, the load is loosened and the frozen bread is conveyed again by inputting the above-mentioned reverse.

Thereafter, the object to be cooled 1 is depanned from the frozen bread 2 using a heating device (not shown) and sent to the next process.

Since the conventional device is constructed as described above, it has the following drawbacks.

(1) A great deal of human power is required to take in and out the frozen bread 2.

(2) Since the frozen pans are inserted in multiple stages, there is a large difference in the load on the top and bottom, so a highly rigid frozen pan is used to prevent the object to be cooled from deforming, which creates thermal resistance and reduces the cooling of the bottom surface. Performance is poor.

[Summary of the invention]

This invention was made in order to eliminate the drawbacks of the conventional ones as described above, and includes a refrigerating conveyor that automatically carries in and out objects to be cooled, and a low-temperature cooling fluid that flows over the top surface of the conveyor and comes into contact with the objects to be cooled. By installing a low-temperature container that does not deform under any conditions, and cooling the object by sandwiching it between the freezing conveyor and the low-temperature container, the object to be cooled can be taken in and out using the conveyor, saving labor and keeping the load applied to each stage of the low-temperature container constant. Therefore, the object of the present invention is to provide a device that directly cools the object to be cooled and improves cooling performance without using frozen bread.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings. In FIG. 2, the low-temperature containers 3 are not arranged in multiple stages, but are arranged horizontally in one row and one stage. Therefore, the inlet pipe 5, the outlet pipe 6 and the flexible pipe 4 are all arranged horizontally. Further, the number of weighting devices 8 is equal to the number of low temperature containers. 70 is a belt of a rotary conveyor, which is rotated by a driving pulley 72 and a driven pulley 71.

Below the belt 70 is an enclosure 10 for flowing low-temperature fluid.
1 and 102 are provided in the shape of a bento box without a lid, and the low temperature fluid 91 flowing in from the conduit 100 provided in the lower enclosure 101 overflows from the surrounding enclosure 102. A tank 110 receives the overflowing low-temperature fluid and is connected to an outlet main pipe 64 through an outlet pipe 63 provided at the bottom of the tank. 65 is a pressure equalizing pipe. FIG. 3 is a cross-section of FIG. 2 along arrows A, B, and C. In the figure, 61 is a connecting pipe that connects the outlet main pipe and the outlet pipe 6. 120 is a stopper. 9 is a low temperature fluid. The following operation will be explained.

The objects 1 to be cooled are conveyed by a belt 70 of a freezing conveyor and arranged on the upper surface of an enclosure 101. This is performed by stopping the drive pulley 72 and the driven pulley 71, but since the control is a well-known technique, it will be omitted.

When the above arrangement is completed, the low temperature container 3 is lowered by the weighting device 8 and set so that the lower surface 31 of the container 3 is in sufficient contact with the object 1 to be cooled. However, the low temperature container 3 will not be deformed. At this time, the flexible tube 4 makes the movement smooth.

Next, the low-temperature cooling fluid 9 flowing in from the inlet pipe 5 cools the object to be cooled 1 from the upper surface via the lower surface 31 of the container, and continues to flow through the outlet pipe 6 and the connecting pipe 61 to the main pipe 64. On the other hand, the low temperature cooling fluid 91 is supplied to the conduit 10
0 and overflowing from the enclosure 102, the object to be cooled 1 is cooled from below via the belt 70. Overflowing low-temperature cooling fluid 91 flows through tank 110 and outlet pipe 63 to main pipe 64 and joins fluid 9. A pressure equalizing pipe 65 with the atmosphere is provided to smooth the flow. When cooling is completed, the fluids 9 and 91 are stopped and the container 3 is pulled upward.
Next, the belt 70 is operated to transport the object to be cooled to the next step, thereby completing the series of cooling steps.

In the above embodiment, the main pipe 64 is the lowest part of the device, but the pipes 61, 63, etc. are all connected to the tank 110.
The cryogenic cooling liquids 9 and 91 may be returned from the bottom of the tank. It is also conceivable to provide a stopper 120 or the like to prevent the lower surface 31 of the low temperature container 3 from being set lower than necessary.

〔Effect of the invention〕

As described above, according to the present invention, the conventional cryogenic containers are not used in multiple stages, but are arranged in one horizontal row and one tier, and the object to be cooled is sandwiched between the cryogenic container whose lower surface is not deformed and the freezing conveyor, and is cooled from above and below. Therefore, it is possible to save labor in carrying in and out of objects to be cooled, and since the load to be pressed can be limited, cooling can be performed without using a rigid freezing pan, which has the effect of improving the cooling effect from above and below.

[Brief explanation of the drawing]

Figure 1 is a conceptual cross-sectional view of a conventional rapid cooling device.
FIG. 2 is a conceptual cross-sectional view showing an embodiment of the present invention in a front view, and FIG. 3 is a cross-sectional view showing a side view of FIG. 2 taken at right angles. In the figure, 1 is the object to be cooled, 2 is a frozen pan, 3 is a low-temperature container, 4 is a flexible tube, 5 is an inlet pipe, 6 is an outlet pipe, 7 is a fixed bed, 8 is a weighting device, and 9 is a low-temperature cooling fluid. , 31 is the lower surface of the low temperature container, 61, 63...outlet pipe, 70 is a belt, 71 is a driven pulley, 72 is a driving pulley, 64 is an outlet main pipe, 65 is a pressure equalizing pipe, 9
1 is a cryogenic cooling fluid, 100 is a conduit, 101 is a lower enclosure, 102 is a surrounding area, and 110 is a tank. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Claims] 1. A refrigerating conveyor that cools an object to be cooled from both sides by sandwiching it between the two sides, and a refrigerating conveyor in which a belt of a rotary conveyor is cooled by low-temperature cooling fluid, and a refrigerating conveyor that is installed above the belt surface of the conveyor and is connected to the object to be cooled. A cooling device characterized by being provided with a plurality of low temperature containers whose lower surfaces do not deform even if they come into contact with each other. 2. The cooling device according to claim 1, wherein the low temperature container is configured such that a low temperature cooling fluid flows therein to maintain the cooling effect. 3. The cooling device according to claim 1, wherein the plurality of low-temperature containers are connected to the inlet/outlet by an inlet/outlet and a flexible tube. 4 When the cryogenic container is moved with the object to be cooled on the conveyor belt, it is pulled upwards so as not to come into contact with the object to be cooled, and after the object to be cooled is set below the cryogenic container and on the belt, it is lifted downward. 2. The cooling device according to claim 1, further comprising a mechanism for bringing the object to be cooled into contact with and cooling the object by means of a weight device that is lowered by a weight device.