JPS6128999Y2 - - Google Patents

Description

[Detailed description of the invention] The invention uses an auger to scrape off the ice that grows on the inner wall of a freezing cylinder and transports it upward, and compresses this scraped ice in an ice compression passage formed on the outer periphery of the upper bearing of the auger. Regarding an auger-type ice maker, ice chips are folded to a predetermined length and moved from the exit of the passage to an ice delivery tube, and are ejected from a discharge tube extending laterally from the side wall of the ice delivery tube. The purpose is to discharge ice smoothly without breaking it, and to improve reliability by having the switch that stops the ice making operation work only in abnormal situations.

An embodiment of the present invention will be described below based on the drawings. Reference numeral 1 denotes a freezing cylinder with a freezing system evaporation pipe 2 wound around its outer surface, 3 an ice-shaving auger rotatably supported inside the freezing cylinder 1, and 4 an upper bearing supporting an upper rotating shaft 3A of the auger 3. A plurality of ice compression passages 5 are formed on the outer periphery together with the inner wall of the freezing cylinder 1, and ice breakers 6 are formed at the exit portions of the passages 5. 7 is a lower bearing that supports the lower rotating shaft 3B of the auger 3, 8 is a mechanical seal, and 9 is a water supply pipe that supplies water into the freezing cylinder 1. Also frozen cylinder 1
An ice delivery cylinder 10 is inserted and supported in the upper part of the ice delivery cylinder 10, and an ice delivery cylinder 1 is laterally inclined downward from the side wall of the ice delivery cylinder 10.
1 is extended. 12 is the entrance 11 of the discharge tube 11
The ice discharging member has a plurality of rotary blades 12A corresponding to A, and its shaft portion 12B is screwed to the upper rotary shaft 3A of the auger 3. Reference numeral 13 denotes a detection plate that can be raised and lowered and is placed in the upper space 14 of the outlet tube 10 located above the emission tube 11. The detection shaft 13A passes through the top plate 10A of the outlet tube 10 and has a stopper at the tip. A nut 15 is fixed. Furthermore, the detection plate 13
A coil spring 16 for biasing the detection plate 13 downward is arranged between the top plate 10A and the top plate 10A. 17 is a switch corresponding to the detection shaft 13A, which controls the ice making operation.

In the above configuration, the distance B from the upper end of the upper bearing 4 to the lower end of the rotor blade 12A and the distance B from the upper end of the upper bearing 4 to the lower end of the rotor blade 12A
It is designed so that the distance C from the upper end to the lower surface of the detection plate 13 is longer than the length A of the ice pieces coming out from the compression passage 5.

The ice growing on the inner wall of the freezing cylinder 1 is scraped off by the auger 3 and transferred to the compression passage 5.
Here, most of the moisture is removed and the ice becomes hard. When the ice is pushed out, it is broken into a predetermined length A by the ice breakers 6 and moved to the delivery tube 10. At this time, 18 pieces of ice
Since the distance B is longer than the dimension A, the ice pieces 18 are not crushed between the rotor blade 12A and the upper end of the upper bearing 4, but are deflected by the rotor blade 12A toward the inlet of the ejection tube 11, and maintain a predetermined shape. released.

In the above-described ice discharging operation, if an abnormality occurs such as ice chips becoming stuck in the discharge tube 11, the ice chips that have no place to escape will move toward the upper part of the discharge tube 10. The ice pieces then come into contact with the detection plate 13, causing the detection plate 13 to rise as shown by the dotted line against the spring 16, whereby the detection shaft 13A presses the switch 17 to stop the ice-making operation. Therefore, damage to the outlet tube 10 and excessive load on the ice making section can be prevented. In this way, the switch 17 normally operates to stop the ice-making operation only in the event of an abnormality, but even when ice chips are being discharged smoothly, ice chips may sometimes land on the rotor blade 12A. This tends to push up the detection plate 13. However, in the present invention, since the distance C is made longer than the dimension A of the ice pieces 18 to provide a margin, there is no malfunction that would cause the ice making operation to stop while the discharging operation is being performed smoothly.

As described above, the present invention arranges a discharge member with rotary blades corresponding to the inlet of the ice discharge tube inside the ice discharge tube, and the ice pieces come into contact with the upper space of the discharge tube located above the discharge tube. A detection plate that rises against the spring is placed, and a switch that is activated when the detection plate rises to a predetermined level and stops the ice-making operation is placed outside the lead-out tube. Since the distance B from the outlet end of the compression passage to the lower end of the rotor blade is increased, the ice pieces coming out of the ice compression passage are guided to the discharge tube by the rotor blade without being crushed between the rotor blade and the upper bearing. , it is possible to eject ice pieces that maintain a predetermined shape, improving quality.

[Brief explanation of the drawing]

The figure is a partial longitudinal sectional view of the auger ice maker of the present invention. 3...Auger, 4...Upper bearing, 5...Ice compression passage, 10...Ice delivery tube, 11...Discharge tube, 1
1A...Inlet, 12...Emission member, 12A...Rotor blade, 13...Detection plate, 14...Upper space, 17
...Switch.

Claims (1)

[Scope of utility model registration request] The ice growing on the inner wall of the freezing cylinder is scraped off with an auger and transported upwards, and this scraped ice is compressed in an ice compression passage formed on the outer periphery of the upper bearing of the auger, and is folded into a predetermined length and compressed into the passage. In an auger-type ice maker, the ice chips are moved from the outlet of the ice cube to the ice outlet tube, and are ejected from the discharge tube extending laterally from the side wall of the ice outlet tube. A discharge member having a corresponding rotary blade and connected to the upper end of the auger is disposed, and rises against the spring when ice chips come into contact with the upper space of the guide tube located above the discharge tube. A detection plate is disposed, and a switch is disposed outside the lead-out tube that is activated when the detection plate rises to a predetermined level to stop the ice making operation, and a switch that is activated to stop the ice making operation when the detection plate rises to a predetermined level is disposed, An auger-type ice maker characterized in that a distance B to the lower end of the rotary blade is increased.