JPS6129001Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to an auger-type ice maker, and in particular relates to a completely new improvement that allows the screw body to be manufactured at low cost and only the screw blade portion to be easily replaced. be.

In conventionally used auger-type ice makers, the screw body A for scraping off ice formed on the inner wall of the freezing casing has a diameter larger than the outer diameter of the screw blade part B, as shown in Fig. 1. Stainless steel bar C was manufactured by cutting.

However, when the screw blade part B, first shaft part D, and second shaft part E are formed by such a cutting process, it is necessary to cut the parts shown by diagonal lines in FIG. 1, that is, about 50% or more by weight. This increases the material cost and requires a large number of processing steps, making it an extremely expensive part.

Furthermore, even if only the first shaft portion D or the second shaft portion E is worn out, the entire screw body A must be replaced, resulting in high repair costs and a heavy burden on the user. Therefore, such conventional processing methods go against resource conservation, extremely increase costs, and are limited in materials, and in particular cannot reduce the weight of the ice maker, contrary to the advantage of compactness of the auger ice maker. There were other drawbacks.

The purpose of the present invention is to provide an extremely effective means for quickly eliminating the above-mentioned drawbacks, and in particular, the screw body is composed of a screw blade, a first shank, and a second shank. The screw blade part is hollow-molded by casting, the first shaft part is removably fitted through a non-circular connecting part, and the second shaft part is removably fitted through a tapered part. It is.

Hereinafter, preferred embodiments of the auger ice maker according to the present invention will be described in detail with reference to the drawings.

What is indicated by the reference numeral 1 in the drawings is a refrigerating casing having a generally cylindrical shape as a whole, and an evaporation pipe 3 that is connected to the refrigerating section 2 and for guiding refrigerant is wound around and attached to the outside of the refrigerating casing 1. At the same time, a heat insulating cover member 4 is attached. A first bearing portion 6 and a fixed blade 7 are coaxially provided at one end portion 5 of the refrigeration casing 1,
A second bearing part 10 fixed to a housing part 9 is provided at the other end part 8, and the fixed blade 7 and the housing 9 are connected to one end part 5 and the other end of the refrigeration casing 1 through fixing bolts 11, respectively. They are each fixed to the section 8.

A first shaft portion 14 and a second shaft portion 15 of a screw body 13 having a screw blade portion 12 are inserted into the first bearing portion 6 and the second bearing portion 10 from their respective open ends, and are rotatably provided. , 1st
A cutter 17 is attached to the end of the shaft portion 14 and is located within an ice discharge port 16 attached to one end portion 5 of the frozen casing 1 . Furthermore, the second
The drive shaft 1 is supported by third bearing parts 25a and 25b attached to the housing 9 at the lower end of the shaft part 15.
The distal end 18a of the housing part 8 is provided so as to fit thereinto, and is connected by a gear to a geared motor 19 forming a part of the drive device 24 mounted on the housing part 9.
A water supply pipe 20 is attached to one end of the other end portion 8 of the refrigeration casing 1, and a drain pipe 21 is provided to one end of the housing portion 9.

The screw body 13 is the most characteristic feature of the present invention, and in particular, as shown in the exploded view of FIG. 15 are provided in a removable manner. That is, the screw blade part 12 is formed by hollow molding by precision casting, and has a hollow part 23 penetrating in the length direction formed in its internal center, and a first fitting provided at one end thereof. Joint receiving part 12a
has a non-circular cross section (quadrilateral in this embodiment) as shown in FIG.
A non-circular (quadrangular in this embodiment) fitting portion 14a formed at one end of the first shaft portion 14 is fitted into the first shaft portion 2a. Further, the second fitting receiving portion 12b provided at the other end of the screw blade portion 12 also
Like the fitting receiving part 12a, it is configured in a non-circular shape, and a non-circular fitting part 15a formed at one end of the second shaft part 15 is fitted into this second fitting receiving part 12b. A tapered shaft portion 15b is provided continuously to the fitting portion 15a, and this tapered shaft portion 1
5b is the second fitting receiving part 1 of the screw blade part 12
The concentricity between the screw blade part 12 and the second shaft part 15 is achieved by joining with the tapered shape 12c formed continuously on the screw blade part 2b. Furthermore, a non-circular (quadrilateral as shown in FIG. 4) fitting receiving part 15c is formed at the end of the second shaft part 15, and this fitting receiving part 15c is provided with the drive shaft. 18 tips 18a are fitted. The drive shaft 18 is connected to the third bearing portion 2
5a and 25b. Therefore, when disassembling the screw body 13, the first fitting receiving part 12a of the screw blade part 12 and the fitting part 14a of the first shaft part 14 are released, and the second fitting receiving part 1
2b and the fitting part 15a of the second shaft part 15, and further, by releasing the fitting between the fitting part 15 and the drive shaft 18a, the screw blade part 12 first
The shaft portion 14 and the second shaft portion 15 can be separately disassembled. Moreover, if only the first shaft part 14 and the screw blade part 12 are disassembled, this can be easily achieved by replacing the second shaft part with the drive shaft 18 of the drive device. In this case the second
The bearing part can be removed.

In the above configuration, when operating the auger ice maker according to the present invention, the ice making water supplied from the water supply pipe 20 into the freezing casing 1 is cooled by the refrigerant flowing through the evaporation pipe 3, 1 Ice grows on the inner wall surface. This ice is scraped off by the screw blade 22 of the screw body 13 which is rotationally driven by the geared motor 19, sent in the direction of arrow A, that is, upward, and after being compressed, is cut by the cutter 17 and released outward from the ice discharge port 16. Supplied. In this case, since the screw body 13 has the function of scraping and pushing up ice in the direction of arrow A during ice making,
A reaction force is always acting on the screw body 13 itself in the direction of arrow B, and even if the screw body 13 is configured to be detachable as shown in FIG.
2 and the second shaft portion 15 and the second shaft portion 15 and the drive shaft 18
During ice making, the tips 18a do not separate from each other due to the force in the direction of arrow B, but act as a force in the direction to strengthen the fit, so that a reliable ice making operation can always be obtained. Furthermore, by forming the second shaft part with the drive shaft of the drive device, the drive shaft and the screw blade part can be directly connected, so rotation is smoother and the length of the drive shaft up to the screw blade part is longer than the conventional length. Since the ice maker can be made shorter, the height of the ice maker itself can be lowered and made more compact.

Since the auger-type ice maker according to the present invention has the above-mentioned structure and function, the screw blades that make up the screw body can be manufactured at extremely low cost, and each shaft can be made to be different from the screw blades. It can be manufactured from an appropriate material (e.g. steel bar), matches the compactness of the ice maker body in terms of making the screw body itself lighter than conventional ones, and can be obtained at a much lower cost. This greatly improves quality. In addition, since the screw blade and each shaft are configured to be detachable, even if the shaft becomes worn, it is easy to replace only the shaft, which does not cause unnecessary discomfort to the user. Maintenance can be carried out without any hassle.

Furthermore, since the cutting process of the screw blade part is almost eliminated, the number of machining steps is greatly reduced, and there is almost no wastage of material due to cutting, which is extremely effective from the perspective of resource saving. .

Furthermore, the assembly accuracy of an auger-type ice maker depends on the accuracy of the clearance between the inner wall surface of the refrigeration casing 1 and the screw blade 22, but with the configuration of the present invention, when cutting the housing portion 9, Second bearing part 10 and third bearing part 25
Lathe machining of three precision fitting holes, a and 25b, can be done at the same time without having to re-grip the chuck.
This allows much more accuracy to be maintained than in the conventional case, which required re-gripping the chuck.
Assembling errors can be minimized, making the assembly process more accurate and easier, reducing processing costs for the housing, and greatly shortening assembly time, making it an extremely effective configuration for increasing product precision. It is.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing the processing state of a conventionally used screw body, Fig. 2 is a block diagram showing a cross section of an auger ice maker according to the present invention, and Fig. 3 shows the screw body in Fig. 2. The exploded sectional view, FIG. 4, is a bottom view of the main parts in FIG. 3. 1 is a freezing casing, 2 is a freezing section, 3 is an evaporation pipe, 4 is a heat insulating cover member, 6 is a first shaft section, 7 is a fixed blade, 9 is a housing section, 10 is a second bearing section,
12 is a screw blade part, 12a is a first fitting receiving part,
12b is a second fitting receiving part, 12c is a tapered part, 13
14 is a screw body, 14 is a first shaft portion, 14a is a fitting portion, 15 is a second shaft portion, 15a is a fitting portion, 15b is a tapered shaft portion, 15c is a fitting receiving portion, 16 is an ice discharge port, 17 is the cutter, 19 is the geared motor, 2
2 is a screw blade, 23 is a hollow portion, 24 is a drive device, and 25a, 25b are third shaft portions.

Claims (1)

[Claims for Utility Model Registration] (1) A refrigerating casing having a cylindrical shape as a whole, an evaporation pipe attached to the outer circumference of the refrigerating casing, a refrigerating section for supplying refrigerant to the evaporating pipe, and In an auger-type ice maker having a screw body rotatably provided in a refrigeration casing and a drive device for rotating the screw body, the screw body is hollow-formed by casting, and has a non-circular fitting receiving portion at one end. a screw blade portion having a tapered portion at the other end; a first shaft portion having a non-circular fitting portion fitted to one end of the screw blade portion; and a first shaft portion having a non-circular fitting portion fitted to the other end of the screw blade portion; an auger-type ice making device comprising a second shaft portion having a tapered shaft portion and a tapered shaft portion joined to the tapered portion, and wherein the screw blade portion, the first shaft portion, and the second shaft portion are configured to be detachable. Machine. (2) The scope of the utility model registration claim characterized in that the second shaft portion is composed of a non-circular fitting portion formed at one end and a non-circular fitting receiving portion formed at the other end. The auger ice maker according to item 1.