JP2016090060A - Ice making machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ice making machine in which an ice making mechanism and a refrigeration mechanism are integrated, and which is small-sized and easy to carry.SOLUTION: An ice making machine includes: an ice making mechanism 11 for manufacturing flake-like ice; and a refrigeration mechanism 12 for cooling a refrigerant supplied to the ice making mechanism 11. The ice making mechanism 11 includes: a vertical drum 17 in which an outer peripheral surface is cooled by the refrigerant; a rotary shaft 26 which is arranged on a central axis of the vertical drum 17 and which holds the vertical drum 17; a water distribution dish 23 which is mounted above the rotary shaft 26 and rotates together with the rotary shaft 26, and which supplies ice-making water to the outer peripheral surface of the vertical drum 17; an overhang member 24 in which a base end part is mounted above the rotary shaft 26 and extends in a radial direction of the vertical drum 17, and which rotates with the rotary shaft 26; and a peeling-off blade 25 which suspends by being fixed to a tip part of the overhang member 24, and which peels off an ice film formed on the outer peripheral surface of the vertical drum 17.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an ice making machine for producing flaky ice.

  Bulk ice requires about 25 minutes to make ice, whereas flake ice can be made in a short time. In addition, flake-shaped ice (hereinafter sometimes referred to as “flake ice”) has a large specific surface area, so that the object to be cooled can be quickly cooled. Cut off heat. Therefore, it is excellent in maintaining the freshness of foods such as perishable fish and freshly picked vegetables.

Conventionally, a drum type ice making machine is known as an apparatus for producing flake ice. For example, in Patent Document 1, an ice film generated by flowing ice-making water down on the inner peripheral surface of a vertical drum cooled by a refrigeration cycle is a saw tooth that rotates around an axis installed at the center of the vertical drum as a rotation axis. An apparatus for producing flake ice by sequentially scraping with a strip-like peeling blade is disclosed.
Further, in Patent Document 2, an auger screw having a spiral blade formed on the outer peripheral surface of the rotating shaft is used instead of the sawtooth-shaped peeling blade.

Japanese Patent Laid-Open No. 10-205940 JP-A-4-278161

  Even though the conventional ice making machine is the smallest, it weighs about 130kg and requires a separate refrigeration mechanism for cooling the refrigerant. In remote areas such as Africa, the South Pacific, and the Caribbean where infrastructure is not established There is a problem that the ice making machine is not widespread, and the fish caught by the fish quickly rot and the distribution network cannot be expanded. Therefore, a simple ice making machine that can be used even in remote areas is desired.

  The present invention has been made in view of such circumstances, and an object thereof is to provide a small and easy to carry ice making machine in which an ice making mechanism and a refrigeration mechanism are integrated.

In order to achieve the above object, an ice making machine according to the present invention has an ice making mechanism for producing flaky ice, and a refrigeration mechanism for cooling a refrigerant supplied to the ice making mechanism,
The ice making mechanism is mounted on a vertical drum whose outer peripheral surface is cooled by the refrigerant, a rotary shaft that is disposed on a central axis of the vertical drum, and holds the vertical drum, and an upper portion of the rotary shaft. A water distribution tray that rotates together with the rotary shaft and supplies ice making water to the outer peripheral surface of the vertical drum, and a base end portion is mounted on the upper portion of the rotary shaft and extends in the radial direction of the vertical drum, A protruding member that rotates together with the rotating shaft, and a peeling blade that is fixed to the tip of the protruding member and hangs down and peels off the ice film formed on the outer peripheral surface of the saddle drum. .

When an ice film is formed on the inner peripheral surface of the saddle drum as in a conventional ice making machine, the surface of the ice film becomes concave, so that a large load acts on the peeling blade. On the other hand, when the ice film is formed on the outer peripheral surface of the saddle drum as in the ice making machine according to the present invention, the surface of the ice film becomes convex, so that the ice film can be easily peeled off. As a result, the load acting on the peeling blade is reduced, and the ice making machine can be downsized. Moreover, since the state of the peeling blade can be easily confirmed, maintenance is also easier than in the prior art.
In addition, in the ice making machine according to the present invention, since the peeling blade is cantilevered from above via the overhanging member, there is no obstacle below the vertical drum, and the peeled and dropped ice adheres to the ice making machine. There is nothing to do.

  Further, in the ice making machine according to the present invention, a plurality of water distribution holes are provided on a circumference centered on the center of the bottom surface of the water distribution tray, and ice making is performed on the outer peripheral surface of the saddle drum through the plurality of water distribution holes. Water may be supplied.

  In this configuration, ice making water is supplied to the outer peripheral surface of the vertical drum from the water distribution hole provided on the bottom surface of the water distribution tray so as to form an ice film, so that a watering pipe in a conventional ice making machine is not necessary.

  Further, in the ice making machine according to the present invention, the upper and lower end portions of the saddle drum are made of synthetic rubber or synthetic resin, and are directed upward from the upper edge of the outer peripheral surface of the saddle drum cooled by the refrigerant. It is preferable that the upper end portion of the saddle drum is reduced in diameter and the lower end portion of the saddle drum is reduced in diameter from the lower edge of the outer peripheral surface of the saddle drum cooled by the refrigerant. And

In the ice making machine according to the present invention, the upper end portion of the vertical drum is inclined downward, and the ice making water that has dropped from the water distribution hole provided on the bottom surface of the water distribution tray is passed through the upper end portion of the vertical drum. Flow down on the outer periphery of the mold drum. On the other hand, the surplus water that has flowed down on the outer peripheral surface of the vertical drum flows down the lower end portion of the vertical drum and then flows down to the falling tray.
In order to prevent ice from forming on the upper end and lower end of the saddle drum, the upper end and lower end of the saddle drum are made of synthetic rubber or synthetic resin.

  In the ice making machine according to the present invention, since an ice film is formed on the outer peripheral surface of the saddle drum, the load acting on the peeling blade is reduced. As a result, it is possible to realize a small and easy to carry ice making machine in which the ice making mechanism and the refrigeration mechanism are integrated.

1 is a perspective view of an ice making machine according to an embodiment of the present invention. It is a top view of the ice making machine. (A) is a plan view of the main part of the ice making mechanism, and (B) is a side view of the main part of the ice making mechanism. It is a longitudinal cross-sectional perspective view of the main part of an ice making mechanism. It is the perspective view which showed the drive means of the ice making mechanism. It is the perspective view which looked at the ice making mechanism from the lower part. It is a top view of a water distribution tray.

  Next, embodiments of the present invention will be described with reference to the accompanying drawings to provide an understanding of the present invention.

An ice making machine 10 according to an embodiment of the present invention includes an ice making mechanism 11 that produces flake ice, a refrigeration mechanism 12 that cools refrigerant supplied to the ice making mechanism 11, and a control that controls the ice making mechanism 11 and the refrigeration mechanism 12. These devices are arranged on the base frame 18 or the base plate 19 (see FIGS. 1 and 2). The base frame 18 and the base plate 19 are connected to constitute an integrated base.
The size of the ice making machine 10 is about 500 mm in width, about 900 mm in length, about 330 mm in height, and about 55 kg in weight. About 190 kg of flake ice can be produced per day.

The ice making mechanism 11 includes a vertical drum 17 whose outer peripheral surface is cooled by a refrigerant, a rotary shaft 26 disposed on the central axis of the vertical drum 17, and an upper portion of the rotary shaft 26 that is mounted on the rotary shaft 26 and rotates together with the rotary shaft 26. And a water distribution tray 23 for supplying ice making water to the outer peripheral surface of the vertical drum 17, and a peeling means that rotates together with the rotary shaft 26 and separates the ice film formed on the outer peripheral surface of the vertical drum 17. (See FIGS. 3A, 3B and 4).
In addition, the ice making mechanism 11 is equipped with a driving means for rotating the rotating shaft 26 and a water supply means for supplying ice making water to the water distribution tray 23 (see FIGS. 5 and 6).

The vertical drum 17 includes a straight cylindrical ice making part 20 having an ice film formed on the outer peripheral surface, an upper end part 21 whose diameter is reduced upward from the upper edge of the ice making part 20, and a lower edge of the ice making part 20. A lower end portion 22 that is reduced in diameter toward the lower side is schematically configured. Immediately below the lower end portion 22, a falling tray 29 is provided that includes an annular groove that collects excess water that flows down from the ice making portion 20 through the lower end portion 22.
The ice making unit 20 includes an outer cylinder 20a and an inner cylinder 20b. The refrigerant is fed from the pipe 32 to a gap formed between the outer cylinder 20a and the inner cylinder 20b and discharged from the pipe 33 (see FIGS. 4 and 5).
The upper end portion 21 and the lower end portion 22 are made of synthetic rubber such as neoprene rubber or silicone rubber or synthetic resin such as urethane, the ice making portion 20 is made of steel, and the outer surface of the outer cylinder 20a is hard chrome plated. Yes.

The saddle-shaped drum 17 is held on the rotating shaft 26 via a triangular connecting member 34 in plan view (see FIGS. 4 and 5). A sliding bearing 27 is interposed between the rotary shaft 26 and the connecting member 34 so that the saddle drum 17 does not rotate with the rotary shaft 26.
On the other hand, the rotary shaft 26 is supported at its lower end by a shaft support member 39 fixed at one end to the base frame 18, and at a shaft support member 38 and one base fixed at a trapezoidal frame 31 standing on the base frame 18. The upper end portion is supported by a portal frame 30 erected on the frame 18.

  The water distribution tray 23 is circular in plan view, and a plurality of water distribution holes 23b are provided on a circumference centered on the center of the bottom surface 23a (see FIG. 7). The diameter of the water distribution holes 23 b is about 3 mm, and the interval between the adjacent water distribution holes 23 b is constant except for the vicinity of the overhanging member 24.

The peeling means peels off the ice film formed on the outer peripheral surface of the saddle drum 17 by hanging from the extending member 24 extending in the radial direction of the saddle drum 17 and being fixed to the distal end portion of the extending member 24. It is comprised from the peeling blade 25 which does (refer FIG. 3, FIG. 4). The projecting member 24 has a base end mounted on the upper portion of the rotation shaft 26 and rotates together with the rotation shaft 26.
The peeling blade 25 is made of a plate material having a length substantially equal to the entire length of the ice making unit 20, and a plurality of saw teeth are formed on the plate material surface facing the ice making unit 20. It should be noted that the gap between the outer peripheral surface of the ice making unit 20 and the tip of the saw tooth is adjustable.

  The driving means includes a motor 40 with a reduction gear fixed to the trapezoidal frame 31, a gear 41 mounted on the shaft of the motor 40, a gear 42 mounted on the upper end of the rotating shaft 26, and the gear 41 and the gear 42. The chain 43 is stretched between them (see FIGS. 3 and 5). The rotational force of the motor 40 is transmitted to the rotary shaft 26 via the gears 41 and 42 and the chain 43.

The water supply means is installed in the middle of the water distribution pipe 35, an ice making water tank 37 that stores ice making water, a water distribution pipe 35 that supplies the ice making water in the ice making water tank 37 to the water distribution tray 23, and is installed in the ice making water tank 37. It is comprised from the pump 36 which pumps ice-making water to the water distribution tray 23 (refer FIG. 6).
The surplus water that has flowed down to the water dropping tray 29 is collected in the ice making water tank 37.

The refrigeration mechanism 12 that cools the refrigerant supplied to the ice making mechanism 11 is generally configured by a compressor 15, a condenser 16, an expansion valve (not shown), and a vertical drum 17 that functions as an evaporator ( (See FIGS. 1 and 2).
The gaseous refrigerant is compressed by the compressor 15 and then cooled by the condenser 16 to become a high-pressure liquid refrigerant. The high-pressure liquid refrigerant is reduced to a low pressure by the expansion valve, and is sent to the vertical drum 17 via the pipe 32. The refrigerant that has absorbed and vaporized the vertical drum 17 is fed again to the compressor 15 via the pipe 33.

Next, a method of using the ice making machine 10 having the above configuration will be described.
(1) A container whose upper surface is opened to the atmosphere is set below the vertical drum 17. Further, ice making water is stored in the ice making water tank 37.
(2) Turn on the power and operate the control device 13.

(3) Ice making water in the ice making water tank 37 is supplied into the water distribution tray 23 from the water distribution pipe 35, and the water distribution tray 23 and the peeling means rotate around the central axis of the vertical drum 17 at a rotational speed of 2 to 3 rpm. To do. In addition, the ice making unit 20 is cooled by the refrigerant supplied to the ice making unit 20 of the saddle drum 17 through the pipe 32.
(4) The ice making water dropped from the water distribution hole 23 b provided in the bottom surface 23 a of the water distribution tray 23 flows down from the upper end portion 21 of the vertical drum 17 to the ice making portion 20, and forms a water film on the outer peripheral surface of the ice making portion 20. To do.
(5) The water film formed on the outer peripheral surface of the ice making unit 20 is cooled to become an ice film. The ice film is peeled off by the peeling blade 25 and falls into a container set below the vertical drum 17.

  Although one embodiment of the present invention has been described above, the present invention is not limited to the configuration described in the above-described embodiment, and is within the scope of matters described in the claims. Other possible embodiments and modifications are also included.

10: ice making machine, 11: ice making mechanism, 12: freezing mechanism, 13: control device, 15: compressor, 16: condenser, 17: vertical drum, 18: base frame, 19: base plate, 20: ice making unit, 20a: outer cylinder, 20b: inner cylinder, 21: upper end part, 22: lower end part, 23: water distribution tray, 23a: bottom surface, 23b: water distribution hole, 24: overhang member, 25: peeling blade, 26: rotating shaft, 27: Sliding bearing, 29: Water falling tray, 30: Portal frame, 31: Trapezoid frame, 32, 33: Piping, 34: Connecting material, 35: Water distribution pipe, 36: Pump, 37: Ice making water tank, 38, 39 : Shaft support material, 40: motor, 41, 42: gear, 43: chain

Claims (3)

An ice making mechanism for producing flaky ice, and a refrigeration mechanism for cooling a refrigerant supplied to the ice making mechanism,
The ice making mechanism is mounted on a vertical drum whose outer peripheral surface is cooled by the refrigerant, a rotary shaft that is disposed on a central axis of the vertical drum, and holds the vertical drum, and an upper portion of the rotary shaft. A water distribution tray that rotates together with the rotary shaft and supplies ice making water to the outer peripheral surface of the vertical drum, and a base end portion is mounted on the upper portion of the rotary shaft and extends in the radial direction of the vertical drum, A projecting member that rotates together with the rotating shaft, and a peeling blade that is fixed to the tip of the projecting member and hangs down and peels off an ice film formed on the outer peripheral surface of the saddle drum. Ice machine.   2. The ice making machine according to claim 1, wherein a plurality of water distribution holes are provided on a circumference centering on a center of a bottom surface of the water distribution tray, and an ice making water is provided on an outer peripheral surface of the saddle drum through the plurality of water distribution holes. Ice machine.   3. The ice making machine according to claim 2, wherein an upper end portion and a lower end portion of the saddle drum are made of synthetic rubber or synthetic resin, and upward from an upper edge of the outer peripheral surface of the saddle drum cooled by the refrigerant. The upper end portion of the saddle drum is reduced in diameter, and the lower end portion of the saddle drum is reduced in diameter from the lower edge of the outer peripheral surface of the saddle drum cooled by the refrigerant. Ice machine.

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