JPH0341246Y2 - - Google Patents

Description

[Detailed description of the invention] a. Industrial application field This invention relates to an auger-type ice maker, and in particular, produces high-quality ice by discharging the impurity-concentrated ice-making water that accumulates in the upper part of the refrigerating casing to the outside of the machine. It relates to new improvements for manufacturing.

b. Prior Art FIG. 4 is a partial cross-sectional view of a conventional auger ice maker, in which an auger 2 is provided inside a cylindrical refrigerating casing 1 as a whole. This auger 2
is caused by the pressing head 3 fixed to the upper part of the refrigeration casing 1 at the upper shaft part 2a, and by the lower shaft part 2a.
In b, the lower part of the refrigeration casing 1 is rotatably supported by a housing 4 which fixes the lower part of the refrigeration casing 1 to a machine base via bearings 5, respectively. A cooling pipe 6 is tightly wound around the outer wall surface of the refrigeration casing 1, and the outer periphery of the cooling pipe 6 is covered with a heat insulating material 7. A discharge port 9 is fixed to a flange portion 8 at the upper end of the refrigeration casing 1 for guiding ice sent out from an ice compression passage (not shown) of the press head 3 to the outside of the machine.

A water supply port 15 at the bottom of the refrigeration casing 1 is connected via a connecting pipe 10 to a water storage tank 11 that stores ice-making water. A float 12 is provided in the water storage tank 11, which floats according to the vertical movement of the liquid level. A water supply valve 13 is provided at the upper part of the water storage tank 11 and is opened when ice-making water is supplied into the water storage tank 11.

In the conventional auger-type ice maker configured as described above, ice-making water that moves up and down between the upper limit water level 11A and the lower limit water level 11B in the water storage tank 11 by opening and closing the water supply valve 13 is passed through the connecting pipe 10 to the frozen casing. Supplied within 1. At that time, the height of the liquid level in the refrigeration casing 1 matches the height of the liquid level in the water storage tank 11 based on the principle of the communicating pipe. The ice making water inside the frozen casing 1 is passed through the cooling pipe 6.
The phase changes to ice due to the cold heat from the frozen casing 1.
attached to the inner wall of the And this ice is Ogre 2
As the ice rotates, it is scraped off and moved upward, and compressed by the pressing head 3 to become a rod-shaped compressed ice. This compressed ice is transferred to the cutter 1 attached to the upper shaft portion 2a.
4, the ice cubes are cut into a certain size and discharged from the discharge port 9 into an ice storage (not shown).

c. Problems to be solved by the invention In the conventional auger-type ice maker configured as described above, when compressed ice is compressed by the pressing head 3 into rod-shaped ice, the ice-making water contains many impurities and is difficult to make ice. For example, after 15 to 20 minutes have elapsed since the start of operation, ice-making water with a high concentration of impurities will remain in the upper part of the freezer casing 1, and this ice-making water containing many impurities will eventually become ice-making. However, there was a problem that poor quality ice was produced.

This invention was made in order to solve this problem, and it is possible to produce high-quality ice without using the ice-making water with high impurity concentration that stays in the upper part of the freezer casing 1 for ice-making. The purpose is to obtain an auger-type ice maker that can.

d Means for Solving the Problems The auger ice maker according to this invention has a water storage tank 20 arranged such that the upper limit water level 20A in the water storage tank 20 is higher than the pressure head 3.

e Effect In this invention, the ice-making water with high impurity concentration that remains in the upper part of the freezer casing 1 is overflowed from the upper part of the freezer casing 1 and discharged outside the machine by the principle of a communicating pipe.

f. Example Hereinafter, an example of this invention will be described with reference to the drawings. FIG. 1 is a partially sectional view showing an embodiment of this invention, and FIGS. 2 and 3 are enlarged views of the main parts of FIG. 1, and the same or corresponding parts as in FIG. The explanation will be omitted.

In the figure, a water storage tank 20 connected to the inside of the refrigeration casing 1 via a connecting pipe 10 is arranged such that the upper limit water level 20A in the water storage tank 20 is higher than the pressure head 3 due to the float 12.

At the bottom of the discharge port 21 attached to the flange portion 8, a water channel 24 having an upward slope 23 toward the ice discharge slope 22 is formed, and a discharge port 25 is formed at the bottom of the water channel 24.

In the auger ice maker configured in this way, the ice making water in the freezer casing 1 is passed through the cooling pipe 6.
When the water level in the water storage tank 20 decreases and the float 12 drops to near the lower limit water level 20B, ice-making water with a high impurity concentration remains in the upper part of the frozen casing 1. I will do it. Then, ice making progresses,
When the float 12 falls to the lower limit water level 20B,
The water supply valve 13 is opened and water is supplied into the water storage tank 20 by the float 12 up to the upper limit water level 20A. This ice-making water is supplied into the freezing casing 1 through the connection pipe 10 and the water supply port 15, and pushes up the ice-making water with a high impurity concentration.
The ice-making water with a high concentration of impurities overflows from the press head 3 according to the principle of a communicating pipe, and is discharged to the outside of the machine through the water channel 24 and the discharge port 25.

In this way, the rod-shaped compressed ice that is always made with fresh ice-making water is cut into appropriate lengths by the cutter 26. This ice is pushed out onto the ice discharge slope 22 by the guide plate 27 and discharged from the discharge port 21 into the ice storage.

g. Effect of the invention As explained above, according to the auger ice maker of this invention, the water storage tank 20 is arranged so that the upper limit water level 20A in the water storage tank 20 is higher than the pressure head 3, so that freezing The ice-making water with a high impurity concentration that remains in the upper part of the casing 1 is overflowed from the upper part of the freezing casing 1 and discharged outside the machine due to the principle of the communication pipe, so that the ice-making water with a high impurity concentration is provided for ice making. This has the effect of producing high-quality ice.

[Brief explanation of the drawing]

Fig. 1 is a partial sectional view showing an embodiment of this invention, Fig. 2 is an enlarged sectional view of the discharge port in Fig. 1, and Fig. 3 is an enlarged sectional view of the discharge port in Fig.
The figure is an enlarged sectional view of the cutter shown in FIG. 1, and FIG. 4 is a partial sectional view showing an example of a conventional auger-type ice maker. DESCRIPTION OF SYMBOLS 1... Refrigeration casing, 2... Auger, 3... Pressing head, 6... Cooling pipe, 10... Connection pipe, 20...
Water storage tank, 21...discharge port. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

[Claims for Utility Model Registration] 1. A frozen casing 1 having a cooling pipe 6 through which a refrigerant passes, which is attached to the outer wall surface, and a frozen casing 1 that is provided concentrically with the frozen casing 1 and close to its inner wall surface, and that is provided on the inner wall surface of the frozen casing 1. an auger 2 for scraping off frozen ice; a pressing head 3 provided on the top of the auger 2 that cooperates with the auger 2 to compress the ice scraped off by the auger 2; In the auger type ice maker, the water storage tank 20 is connected to the water storage tank 20 and is connected to the water storage tank 20 for storing ice-making water to be supplied into the frozen casing 1.
The refrigerating casing 1 is arranged such that the upper limit water level 20A within 0 is higher than the pressing head 3.
This auger-type ice maker is characterized in that ice-making water with concentrated impurities staying in the upper part of the casing is overflowed from the upper part of the freezing casing 1 and discharged outside the machine by the principle of a communicating pipe. 2. An inclined water channel 24 is formed at the bottom of the discharge port 21 provided in the upper part of the frozen casing 1,
The ice-making water with concentrated impurities passes through the pressure head 3 and the water channel 24 and is discharged outside the machine from the outlet 25 formed at the lowest position of the water channel 24. Ice machine.