JPS6039941B2 - ice machine - Google Patents

Description

Detailed Description of the Invention The present invention provides ice making in the ice making tank by burying the lower end of the rotary blade in the upper part of the ice making tank which is filled with ice making water and forms ice blocks around the outer periphery of the ice making core protruding from the lower bottom wall. The present invention relates to an ice making machine equipped with a collecting device for collecting ice blocks floating on the water surface, and is concerned with improving the reliability of the ice making machine.

Conventionally, this type of ice making machine is known to have a collecting device having a constantly rotating rotary blade mounted on the top of an ice making tank, and to collect ice blocks and to water the ice at the same time when making ice.

However, when collecting ice cubes using the rotary blade, the ice soul gets caught between the side wall of the ice-making tank and the rotary blade, and the motor driving the rotary blade is locked, resulting in the generation of opaque ice blocks due to poor ice making water flow, and eventually the drive of the ice making tank. This inevitably resulted in damage to the motor. The present invention solves such problems.
To provide an ice maker which eliminates the possibility of ice blocks being caught.

Embodiments of the present invention will be described below with reference to the accompanying drawings. In the figure, reference numeral 1 denotes the main body of the ice making machine, and a heat insulating material 4 is filled between a cabinet 2 and an inner box 3, a machine room 5 is formed at the bottom, and a door 6 is provided at the front.

An ice making tank 7 is provided inside the ice making machine main body 1, and an ice making core 8 protrudes from the lower bottom wall 7a. The ice-making core 8 exchanges heat with a cold soot evaporation tube 8' which forms part of a well-known cooling system, cools the ice-making water 9 filled in the ice-making tank 7, and forms ice blocks 10 on its outer periphery. The penetrating portion of the lower bottom wall 7a is sealed with a rubber packing 11. A recovery device 12 is provided at the top of the ice making tank 7, and this recovery device 12 includes a drive motor 13 that is constantly rotating, a rotating shaft 14 extending from the drive motor 13, and a rotating blade 15. The rotating shaft 14 and the rotating blade 15 are connected to each other. It is composed of a hinge body 16, and is attached at a position where the lower end of the rotary blade 15 is immersed in the ice-making water 9 when rotated.

The hinge body 16 is formed of a shaft fixing plate 17, a pivot shaft 18, a blade mounting plate 19, a spring 20 with holding parts 20a and 20b protruding on both sides, and a contact plate 21 that protrudes from the shaft fixing plate 17, and is attached to the shaft 18. Both plates 17, 19, spring 20
By penetrating the presser portions 20a and 20b into contact with the surfaces of both plates 17 and 19 on the opposite rotational direction, the spring 20 is rotatably supported only in the direction opposite to the rotational direction of the drive motor 13, and the force of the spring 20 is At the weight of the ice block, the hinge body 16 is held in a straight line,
The blade mounting plate 19 is rotated at the maximum rotational torque of the drive motor 13.
is adjusted so that it is rotated against the elasticity of the spring 20.

Next, the operation of the above configuration will be explained.

The ice-making water 9 is spun by the rotating blade 15, which is constantly rotating.
A transparent block of ice 10 is generated around the outer periphery of the ice making core 8. The ice cubes generated to a certain size float to the surface of the ice-making water 9 and are collected from the ice-making tank 7 by the rotating blades 15 (
Figure 3 (solid line). However, due to the relationship between the timing at which the ice block 10 rises to the surface of the ice-making water 9 and the timing at which the rotary blade 15 rotates, the ice block may be caught between the side wall of the ice-making tank 7 and the rotary blade 15. At this time, the maximum rotational torque of the drive motor 13 is applied, and the hinge body 16 is rotated around the pivot shaft 18 against the force of the spring 20.
The rotating shaft 14 continues to rotate, and the ice soul 10 comes off (two-dot chain line in Figure 3). As is clear from the above description, the ice making machine according to the present invention has its rotating lower end buried in the upper part of the ice making tank which is filled with ice making water and forms ice blocks around the outer periphery of the ice making core protruding from the lower bottom wall. In a device equipped with a recovery device for recovering ice cubes floating on the surface of ice making water in a tank, the rotating shaft of the recovery device and the rotating blade are connected by a hinge body that rotates, and the hinge body is rotated with respect to the ice cube recovery direction. Since the ice cube is rotated only in the opposite direction and is always held in a straight line by the spring material, the timing of the floating of the ice block and the rotation of the rotating blade may cause an ice block to fall between the side wall of the ice making tank and the rotating blade. Even if it gets caught, the hinge body that connects the rotating blade and the rotating shaft will rotate and the rotating shaft will continue to rotate, making it possible to prevent the formation of opaque ice blocks due to poor rope attachment and damage to the drive motor. .

[Brief explanation of the drawing]

FIG. 1 is a partial sectional view of an ice maker according to an embodiment of the present invention;
FIG. 2 is an exploded perspective view of the main parts, and FIG. 3 is a sectional view showing an outline of the operation. 7... Ice making tank, 8... Ice making core, 1
2... Recovery device, 14... Rotating shaft, 15.
... Rotating blade, 16 ... Hinge body, 20.
...Spring (spring material). Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] 1 Recovery in which the lower end of a rotating blade is buried in water in the upper part of an ice-making tank that is filled with ice-making water and forms ice blocks around the outer periphery of an ice-making core that protrudes from the lower bottom wall, and the ice blocks that float to the surface of the ice-making water in the ice-making tank are collected. In the device equipped with the device, the rotating shaft and the rotating blade of the collecting device are connected to a rotating hinge body, and the hinge body is rotated only in the opposite direction to the collecting direction of the ice blocks, and is always rotated by a spring member. An ice maker characterized by being held in a straight line.