Abstract: A control device for an auger type ice making machine according to the present invention includes a driver circuit that drives a geared motor for rotating an auger; a voltage detector that detects an input voltage applied to the geared motor; a current detector that detects a motor current flowing in the geared motor; and a control circuit in which a plurality of current threshold values that differ according to the input voltage are set in advance, the control circuit controlling the driver circuit so as to stop the geared motor when a value of the motor current detected by the current detector exceeds a current threshold value that corresponds to the value of the input voltage detected by the voltage detector.

Abstract: A control device for an auger type ice making machine according to the present invention includes a driver circuit that drives a geared motor for rotating an auger; a voltage detector that detects an input voltage applied to the geared motor; a current detector that detects a motor current flowing in the geared motor; and a control circuit in which a plurality of current threshold values that differ according to the input voltage are set in advance, the control circuit controlling the driver circuit so as to stop the geared motor when a value of the motor current detected by the current detector exceeds a current threshold value that corresponds to the value of the input voltage detected by the voltage detector.

Abstract: Disclosed is an automatic ice maker which surely removes ice cubes from an ice-making unit and improves an ice-making efficiency. When the automatic ice maker starts a deicing operation, a hot gas is supplied to an evaporator and deicing water is supplied to the ice-making unit from a deicing water sprinkler to turn the frozen state at the frozen surfaces between the ice-making unit and ice cubes to a liquefaction state. When the deicing operation makes some progression and a temperature detecting unit detects that the temperature of the evaporator has reached a set temperature, a circulation pump is driven after elapse of the first set temperature to supply ice-making water to the ice-making unit from an ice-making sprinkler, promoting further separation of the ice cubes.

Abstract: An auger type ice machine in which the load on a geared motor and an upper bearing is mitigated by detecting the load on an auger. A geared motor (9) disposed below a cylinder (1). A rotor (12) of the geared motor has an output shaft (13). A pulse encoder (14) is provided on the output shaft (13). The geared motor (9) is connected with a geared motor power supply (16) through a relay (15). Similarly, a compressor (3) is connected with a compressor power supply (18) through a relay (17). The relays (15) and (17) are controlled by a control portion (19). The control portion (19) controls the relays (15) and (17) according to a signal inputted from the pulse encoder (14).

Abstract: A projecting portion is provided to a discharge chute, the projecting portion having a substantially horizontal slope portion and a step portion that is connected to an end portion of the slope portion and extends in a downward direction. Ice within an ice storage bin can thus be prevented from spilling out, even when ice becomes trapped between the door and the projecting portion.

Abstract: An auger type ice-making machine of the present invention comprises an ice-making cylinder which accommodates an auger rotatably in the interior thereof, an ice compression head which supports the upper end portion of the auger rotatably, and which is disposed in the upper portion of the ice-making cylinder, and a cast-in heater which is attached to the outer peripheral surface of an accommodating portion for the ice compression head of the ice-making cylinder. According to the present invention, the use of a cast-in heater enables heat to be reliably transmitted to the ice compression head, whereby the compressed ice can be melted and ice can be discharged smoothly.

Abstract: A protecting device of an auger ice-making machine which enables obtaining high responsiveness to detection of an abnormality, and identification of abnormal/normal stops.

Abstract: An auger type ice machine in which the load on a geared motor and an upper bearing is mitigated by detecting the load on an auger. A geared motor 9 is disposed below a cylinder 1. A rotor 12 of the geared motor has an output shaft 13. A pulse encoder 14 is provided on the output shaft 13. The geared motor 9is connected with a geared motor power supply 16 through a relay 15. Similarly, a compressor 3 is connected with a compressor power supply 18 through a relay 17. The relays 15 and 17 are controlled by a control portion 19. The control portion 19 controls the relays 15 and 17 according to a signal inputted from the pulse encoder 14.

Abstract: An auger type ice-making machine of the present invention comprises an ice-making cylinder which accommodates an auger rotatably in the interior thereof, an ice compression head which supports the upper end portion of the auger rotatably, and which is disposed in the upper portion of the ice-making cylinder, and a cast-in heater which is attached to the outer peripheral surface of an accommodating portion for the ice compression head of the ice-making cylinder. According to the present invention, the use of a cast-in heater enables heat to be reliably transmitted to the ice compression head, whereby the compressed ice can be melted and ice can be discharged smoothly.

Abstract: A bypass passage is provided between a discharge pipe and a suction pipe of a compressor being a component of an auger type refrigeration circuit, for allowing a hot gas on the high-pressure side of the circuit to recirculate back to the low-pressure side. An electromagnetic valve is disposed on the bypass passage, and an ammeter is provided to a geared motor that drives an auger, which detects an overcurrent value indicative of an overload acting on the geared motor. In response to detection of an overcurrent value by the ammeter, the electromagnetic valve operates to allow a hot gas on the high-pressure side to be supplied to the low-pressure side through the bypass passage.

Abstract: A bypass passage is provided between a discharge pipe and a suction pipe of a compressor being a component of an auger type refrigeration circuit, for allowing a hot gas on the high-pressure side of the circuit to recirculate back to the low-pressure side. An electromagnetic valve is disposed on the bypass passage, and an ammeter is provided to a geared motor that drives an auger, which detects an overcurrent value indicative of an overload acting on the geared motor. In response to detection of an overcurrent value by the ammeter, the electromagnetic valve operates to allow a hot gas on the high-pressure side to be supplied to the low-pressure side through the bypass passage.