JPS6129000Y2 - - Google Patents

Description

[Detailed description of the invention] This invention uses an ice-shaving auger rotatably placed inside a freezing cylinder to scrape off the ice that has grown on the inside of the cylinder and transport it upward. The present invention relates to an auger type ice maker in which hard ice enters a plurality of compression passages formed on the outer periphery of an upper bearing of the auger and is compressed within the passages to deliver hard ice.

Conventionally, in this type of ice maker, shaved ice slides on the inner surface of a freezing cylinder, moves upward while rotating, and enters a compression passage, where most of the moisture is removed and it becomes hard ice. . When this compression passage is filled with ice, the rotational force gradually overcomes the lifting force, and the ice rotates synchronously with the auger, making it impossible for the scraped ice to enter the compression passage smoothly. Eventually, ice will become clogged near the entrance of the compression passage, causing abnormal noise and overload, which will of course make it difficult to make ice.
This also had a negative effect on the component parts.

Japanese Patent Publication No. 54-26300 is a known technique for solving these drawbacks, but this invention involves protruding ribs from the inside of the freezing cylinder to prevent the shaved ice from rotating. Although this problem can be solved, the helical blade length must be determined so that the helical blade does not hit this rib, which is not easy to manufacture, and there is more clearance than necessary between the inner surface of the freezing cylinder and the tip of the helical blade. This had the disadvantage that the scraping action by the blade could not be performed smoothly.

In view of these various drawbacks, the present invention is an auger that has an extremely simple structure, reliably prevents the rotation of shaved ice, and allows the shaved ice to enter each compression passage smoothly and uniformly. Provides ice making machines.

An embodiment of the present invention will be described below based on the drawings. Figure 1 shows a partially cross-sectional configuration of an auger-type ice maker, in which 1 is a freezing cylinder with a refrigeration system evaporation pipe 2 wound around its outer surface, and is rotatably arranged inside the freezing cylinder 1 . The shape of the inner surface 1A of the freezing cylinder 1 facing the ice cutting auger 3 is formed into a polygonal shape extremely close to a circle, as shown in FIG. Reference numeral 4 denotes an upper bearing that supports the upper rotating shaft 3A of the auger 3, and forms a plurality of ice compression passages 5 defined by a plurality of ribs 4A protruding from the outer periphery and the inner surface 1A of the freezing cylinder 1 . 6 is an ice discharge member connected to the upper rotating shaft 3A of the auger 3.

Next, the operation of moving the shaved ice will be explained based on the above configuration. The ice layer 7 (shown in FIG. 3) frozen on the inner surface 1A of the freezing cylinder 1 is scraped off by the rotation of the auger 3 and transported upward. At this time, since the shape of the inner surface 1A of the freezing cylinder 1 is a circular polygon, the synchronous rotation of the shaved ice and the auger 3 is reliably prevented, and only the upward force is applied. Therefore, as shown by arrow L in FIG .
Since the ice immediately advances upward through A and smoothly and uniformly enters each compression passage 5, stable ice compression can be performed within each compression passage 5.

As described above, in this invention, the inner surface of the freezing cylinder is formed into a polygonal shape close to a circle, so that the auger and the shaved ice scraped by the auger can be synchronized without hindering the scraping operation. Rotation can be reliably prevented, and the shaved ice immediately rises to the ice compression passage, so the ice enters the compression passage uniformly and smoothly, and has the practical advantage of being able to perform stable ice-making operations. play.

Furthermore, the inner surface of the frozen cylinder can be easily manufactured into a polygonal shape by drawing press processing.

[Brief explanation of the drawing]

FIG. 1 is a partial longitudinal cross-sectional view of the auger ice maker of the present invention, FIG. 2 is a cross-sectional view of the freezing cylinder, and FIG. 3 is a cross-sectional view of the freezing cylinder showing a state in which ice has formed on the inner surface of the cylinder. 1 ...Freezing cylinder, 1A...Inner surface.

Claims (1)

[Scope of utility model registration request] An ice-shaving auger rotatably disposed inside the freezing cylinder scrapes ice that has grown on the inner surface of the cylinder and transports it upward, and this scraped ice is formed on the outer periphery of the upper bearing of the auger. An auger-type ice-making machine that enters a plurality of compression passages, compresses it in the passages, and delivers hard ice, characterized in that the inner surface of the freezing cylinder is formed into a polygonal shape close to a circle. Machine.