JPS5937654Y2 - Auger ice maker - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to an improvement of the built-in ice compression head in an auger ice maker.

Generally, an auger ice maker has a structure as shown in Fig. 1.

In the drawing, 1 is an ice making section, 2 is a water storage tank, and the ice making section 1 is further composed of a driving section consisting of a combination of a cooling tube 3, an auger 4, an auger drive motor 5, and a speed reduction mechanism 6, and an ice compression head 7. There is.

The cooling cylinder 3 is connected to a water supply pipe 8 at the lower part thereof, and an evaporator 9 of a refrigerator is wrapped around the circumferential surface of the cooling cylinder 3 to freeze a thin layer of ice on the inner peripheral surface of the cooling cylinder 3.

The auger 4 is housed in the cooling cylinder 3, and is rotated in the direction of the arrow (2) by the drive motor 5 to scrape off the thin ice layer while spirally feeding the shaved ice upward with its auger blade 4a.

An ice compression head 7 is installed above the auger 4.

As shown in FIGS. 2a and 2b, this ice compression head 7 is a cylindrical body with a shaft hole 7a in the center, and a plurality of ice compression passages 7b extending in the vertical direction are formed on the outer periphery.

This passage 7b is partitioned between two types of long and short columnar teeth 7c and 7d arranged alternately in the axial direction on the outer circumferential surface of the cylindrical body of the ice compression head 7, and reduces and restricts the cross section of the passage through which the ice passes. are doing.

Therefore, the shaved ice Id1 sent upward by the auger 4
The ice is pushed into the ice compression passage 7b, compressed, and becomes a hard rod-shaped compressed water that is continuously sent upward.

On the other hand, a cam-shaped cutter blade 11 is attached to a rotating shaft 10 extending upward from the auger 4 at a position above the ice compression head I, which cuts the rod-shaped compressed water into a predetermined length according to the rotational drive. It is sent into the water storage tank 2 as ice blocks.

The water storage tank 2 is equipped with a porous bottom plate 12 and an agitator 13 fixed to a rotating shaft 10, and an opening/closing door 15 is provided at a discharge port 14 that opens on one side. The ice block sent from section 1 is transferred to agitator 13.
The ice blocks are stored on standby while preventing them from sticking to each other.

By the way, when the ice is scraped off from the inner circumferential surface of the cooling cylinder 3 by the auger 4 and sent spirally upward by the auger blade 4a, it rises while receiving a force almost perpendicular to the auger blade 4a, and the ice of the auger 4 is It is pushed into the ice compression passage 7b formed by the ice compression head 7 installed above.

However, at this time, the columnar teeth 7c provided on the ice compression head 7
, 7d, the lower end of the longer columnar tooth IC has a symmetrical shape as shown in FIG. The amount of shaved ice pushed into the ice compression passageway Ib is small between the columnar teeth 7c and the columnar teeth Id, and is large between the columnar teeth 7d and the columnar teeth 70, resulting in an imbalance in the amount of shaved ice pushed into the ice compression passage Ib. The problem was that the water quality deteriorated.

Also, the upper end of the auger 4 and the lower end of the columnar teeth 7c are installed a predetermined distance t apart, and the shaved ice pushed up by the auger blade 4a is removed from the upper end of the auger 4 as shown in FIG. After passing through the space B formed between the upper end of the auger 4 and the lower end of the columnar tooth IC, it is pushed into the ice compression passage Ib formed by the columnar teeth 7c and 7d and is compressed. Ice compression: the upper end of auger 4 and columnar tooth 7c
Since the degree of compression is already high in the space B formed between the lower end of the auger 4 and the lower end of the There was also a drawback that friction occurred on the surface C, which produced a clenching sound.

In view of the above-mentioned drawbacks, this invention provides an ice compression head that prevents the occurrence of compaction unevenness, prevents the occurrence of track noise, and makes it possible to produce ice of good quality.
The details of this invention will be explained below according to the embodiments shown in the drawings.

That is, as shown in FIG. 5, this invention includes an ice compression head 23 which is installed above the auger and has two types of long and short columnar teeth 21 and 22 arranged alternately in the axial direction on the outer peripheral surface of a cylindrical body 20.
Of the longer columnar tooth 210 both sides 21a and 21b,
The lower part of the side surface 21b where the blind spot is formed is formed into an arc shape,
It eliminates blind spots.

In this way, if the lower part of the side surface 21b of the longer columnar tooth 21 located on the outer periphery of the ice compression head 23, which is the side surface 21b where the blind spot is formed, is formed in an arc shape, the auger The length of the ice compression head 23,
As shown in FIG. 6, shaved ice pushed into the ice compression passage 24 provided by the two types of short columnar teeth 21 and 22 is distributed between the columnar teeth 21 and 22 and between the columnar teeth 22 and 21. Since the ice enters both of them in a well-balanced manner, it is possible to prevent differences in the degree of compression between the columnar teeth 21 and 22 and between the columnar teeth 22 and 21, and to obtain homogeneous compressed ice.

Further, as described above, one side of the longer columnar tooth 21 is made into an arc shape, and at the same time, the columnar tooth 21 is made longer as shown in FIG. 7, and the tip of the columnar tooth 21 is shaped like an auger as shown in FIG. If you lower it until it touches the rotating surface at the end of the blade 4a,
The shaved ice pushed up by the auger 4 is immediately pushed into the ice compression passage 24 formed by the column teeth 21 and 22, and is gradually compressed in the ice compression passage 24, so that it is compressed. It is possible to prevent clenching noise from occurring during the process.

Furthermore, if the total length of the ice compression head 23 is made longer as shown in FIG. 9, and the total length of the ice compression passage 24 formed by the columnar teeth 21 and 22 is made longer, the time for compressing shaved ice can be lengthened and the overall water quality can be improved. Furthermore, if the upper end of the auger 4 located below the ice compression head 23 is made thin as shown in FIG. 10, shaved ice can be smoothly sent to the ice compression head 23.

As explained above, this idea consists of a cooling tube that communicates with the water supply pipe, an auger inserted into the cooling tube, and two types of long and short columnar teeth that are installed above the auger and extend in the axial direction on its outer circumference at equal intervals. The ice compression head is arranged alternately with ice compression passages formed between these columnar teeth, and the thin layer of ice that has formed on the inner circumferential surface of the cooling cylinder is scraped off by an auger while being spirally sent upwards and installed above the order. In an ice maker with an auger set that generates column-shaped compressed ice by compressing it with an ice compression head, only the longer column tooth has its lower end attached to the ice compression head. The shape of the side surface of this longer columnar tooth extends to the lower end, that is, the front side is formed in a line perpendicular to the subordinate direction with respect to the ice that is sent diagonally upward by the auger, and the lower end of the side surface that becomes the back side is formed to be a line perpendicular to the ice that is sent diagonally upward by the auger. The auger blade is formed into a diagonal arc shape so as to match the direction in which the ice is compressed, and the lowermost end is a less sharp end. Since it is formed in a tapered shape to match the inner diameter of the auger, it is possible to completely eliminate the annular portion of ice between the upper end of the auger and the lower end of the ice compression head, and the front side of the compression head is formed vertically in the vertical direction. At the same time, the strongly compressed ice rises smoothly, preventing the occurrence of clumping noise, and allows the auger to smoothly feed the ice to the ice compression head. It is possible to press shaved ice uniformly into the container and obtain compressed water of good quality.

In other words, the ice clacking sound is caused by the existence of an annular space between the upper end of the order and the lower end of the water compaction head, which causes the ice to be compressed into an annular shape in this area, making it difficult for the ice to move upward. A large amount of resistance is generated between the shaved ice and the shaved ice, which causes the crunching sound.

In this respect, the structure of this part of the device is such that the shaved ice is not kneaded while being strongly compressed, and there is no element that would cause the kneading sound.

In this invention, the lower end of the longer columnar tooth provided on the ice compressing head is extended to the lower end of the ice compressing head, and the upper end of the auger blade is in contact with the lower end of the ice compressing head. An annular space is not formed between the upper end of the auger and the lower end of the ice compression head, thereby preventing the occurrence of the above-mentioned track noise.

In addition, the upper end of the auger is tapered to match the inner diameter of the ice compression passage, allowing the auger to smoothly feed shaved ice into the ice compression passage. Only the longer columnar tooth has a side surface shape, that is, the front side is formed vertically in a perpendicular line in contrast to the ice that is sent diagonally upward by the auger, and the lower end of the side surface that is the back side is where the ice is sent diagonally upward. Since it is formed in an arc shape diagonally so as to match the direction of the tooth, and the lowest end is a less sharp end, there is a blind spot on the back side of the longer columnar tooth against the shaved ice that is sent diagonally upward by the auger. I can't do it.

Moreover, since the front surface is formed in a straight line perpendicular to the longitudinal direction, the shaved ice rises without being kneaded, and the shaved ice can be uniformly fed into each ice compression passage.

Furthermore, since these tilted columnar teeth do not have a complicated shape, they do not require difficult machining, so they are easy to machine.

[Brief explanation of the drawing]

Figure 1 is a sectional view showing the structure of an auger ice maker, Figure 2 a and b? (d) A plan view and a front view showing a conventional example of an ice compression head installed in an auger ice making machine. Fig. 4 is an explanatory diagram showing the compressed state, fifth surfaces a and b are a plan view and a front view showing the compression head according to this invention, and Fig. 6 is an explanatory diagram showing the ice compression head shown in Fig. 5. An explanatory diagram showing the movement of ice, Fig. 7 is a drawing showing a second embodiment of the ice compression head according to the invention, and Fig. 8 shows the compression of shaved ice pushed into the ice compression head shown in Fig. 7. Fig. 9 is a drawing showing the third embodiment of the ice compression head according to the invention, and Fig. 10 shows an auger formed to facilitate pushing shaved ice under the ice compression spatula. FIG. 21...Longer columnar tooth, 21a t21b...Side surface of longer columnar tooth, 22...Shorter columnar tooth, 23
...Ice compression head, 24...Ice compression passage, 4...
Auger, 4a...Auger blade.

Claims (1)

[Scope of utility model registration request] A cooling tube that communicates with the water supply pipe, an auger inserted into the cooling tube, and two types of long and short columnar teeth that are installed above the auger and extend in the axial direction on its outer circumference are arranged alternately at equal intervals. The ice compression head forms an ice compression passage between the teeth, and the force is 1. The auger scrapes off the thin layer of ice that has formed on the inner circumferential surface of the cooling cylinder and sends it spirally upwards to the ice compression head installed above the auger. In an ice maker with an auger that continuously generates column-shaped compressed water by compressing water, the lower end of only the longer column tooth of the two types of long and short column teeth is extended to the lower end of the ice compression head, The shape of the side surface of this longer columnar tooth is that the front side is formed in a vertical line in the vertical direction with respect to the ice that is sent obliquely upward by the auger, and the lower end of the side surface that is the back side is aligned with the direction in which the ice is sent. The auger blades are formed in an oblique arc shape so as to almost coincide with each other, with the lowermost end being a less sharp end, and the upper end of the auger blade is brought into contact with the lower end of the ice compression head, and furthermore, the upper end of the auger is aligned with the inner diameter surface of the ice compression passage. An ice maker with an auger set that has a narrow, tapered shape.