JPS6341549B2 - - 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 sandwiches the frozen bread above and below. 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.

The frozen bread 2 filled with the object to be cooled 11 is manually inserted between the low-temperature containers 3. When the insertion is completed, a load is applied to the weighting device 8, and the flexible tube 4 is displaced to sandwich the frozen bread 2 toward the fixed bed 7.

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 the cooling is completed, the load is loosened in the opposite manner as described above, and the frozen bread is again carried out manually.

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 large amount 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 has been made 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 refrigerating conveyor in which a low-temperature cooling fluid flows on the upper surface of the conveyor and the lower surface thereof. A low-temperature container made of a flexible sheet is provided, and the object to be cooled is sandwiched between the freezing conveyor and the cryogenic container to cool it.The conveyor takes in and out of the object, saving labor and improving the surface shape of the object. The purpose of the present invention is to provide a cooling device that does not require frozen bread and has high cooling efficiency by using a low-temperature container that can be cooled in close contact with the container.

[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 generally arranged in a horizontal row, and the lower surface 31 is made of a flexible sheet. Moreover, the introduction inlet pipe 5, the outlet pipe 6, and the flexible tube 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 at 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.

Next, the 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-mentioned arrangement is completed, the low-temperature container 3 is lowered by the weighting device 8, so that the lower surface 31 of the container 3 is aligned with the object to be cooled 1.
Set it so that it makes sufficient contact with the At this time, the flexible tube 4 makes the movement smooth. Furthermore, since the sheet 31 is made of a flexible sheet, it has good adhesion even if the shape of the object to be cooled is somewhat uneven.

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 connected to the conduit 100.
The object to be cooled 1 is cooled from below via the belt 70 while flowing in from the enclosure 102 and overflowing from the enclosure 102 . Overflowing low-temperature cooling fluid 91 flows through tank 110 and outlet pipe 63 to main pipe 64 and joins fluid 9. In order to smooth the flow, a pressure equalizing pipe 65 with the atmosphere is provided. 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 fluids 9 and 91 may be collected and 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 flexible sheet on the lower surface 31 of the cryogenic container 3 and the freezing conveyor, and the object is sandwiched from above and below. Because it is cooled, it is possible to save labor when carrying in and out of objects to be cooled, and the load to be pressed can be limited, and the sheet surface has good adhesion, so it can be cooled without using a rigid freezing pan, so it can be cooled from above and below. This has the effect of improving the cooling effect of.

[Brief explanation of the drawing]

Figure 1 is a conceptual cross-sectional view of a conventional rapid cooling device.
FIG. 2 is a conceptual sectional view showing an embodiment of the present invention in a front view, and FIG. 3 is a sectional view showing FIG. 2 in a cross section and a side view 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 pipes, 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, 91
is a cryogenic cooling fluid, 101 is a conduit, 101 is a lower enclosure, 102 is a surrounding enclosure, and 110 is a tank.
Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Scope of Claims] 1. A refrigerating conveyor in which an object to be cooled is sandwiched and cooled from both sides, in which a belt of a rotary conveyor is cooled by a low-temperature cooling fluid, and a sheet installed above the belt surface of the conveyor and having a flexible lower surface. A cooling device characterized by comprising a plurality of low-temperature containers configured of. 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 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 pulled down. 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 weighting device.