JPS583021Y2 - Ice maker stirring device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an ice making machine in which an ice making core is protruded from the bottom surface of an ice making tank filled with ice making water, and ice blocks are generated on the ice making core.

Conventionally, in this type of ice making machine, as a means for stirring the ice making water in the ice making tank in order to obtain transparent ice cubes, a stirring member is placed between a group of ice making cores arranged in two rows and is oscillated. What has been done is known.

However, the shaking of the produced water mainly occurs at the location where the stirring member is located,
In other words, only the opposing portions of the two rows of ice cores are large, and therefore highly transparent ice cubes can be obtained in such portions, but the ice cubes are opaque at the position where there is no stirring member, that is, the portions where the two rows of ice core groups are not facing each other. The result is a mixture of transparent and opaque ice blocks.

In addition to the above-mentioned problem, the speed of ice growth also changes depending on the degree of shaking of the ice-making water, resulting in uneven ice blocks.

The present invention has been made with the aim of solving the above-mentioned drawbacks and providing an ice making machine that can produce transparent and uniform ice cubes.

An embodiment 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, which consists of an outer box 2, an inner box 3, and a heat insulating material 4 filled between the boxes 2 and 3.

A heat insulating door 6 for opening and closing the ice block outlet 5 is pivotally attached to the lower front of the main body 1, and a lid 7 is provided to the ice making water inlet on the upper surface.

Further, a machine room 8 is configured in the lower part of the main body 1, and includes an electric compressor 9 and a condenser (not shown) that form part of a well-known cooling system.
etc. are arranged.

Furthermore, a water storage tank 1 for storing ice-making water is located in the upper part of the main body 1.
0 is stored, and below it is the ice making section 1 that produces ice cubes.
1 and a water storage section 12 that stores ice blocks.

Here, the configuration of the ice making section 11 will be explained.

13 is an ice making tank which is communicated with the water storage tank 10 via the pulp mechanism 48, and support plates 14, 14 . ... is fixed to the side wall of the main body 1.

The ice-making water in the water storage tank 10 is always injected into the ice-making tank 13 at a constant rate by a pulp mechanism 48.

The support plates 14, 14... and the bottom wall 1 of the ice making tank 13
3a, there is an evaporation tube 1 that forms part of the cooling system.
5 is arranged, and a bottom wall 13 is provided inside the ice making tank 13.
A large number of ice-making cores 16, 16, .

Here, in FIG. 4, the group of ice-making cores in the left row is temporarily set as group X, and the group of ice-making cores in the right row is set as group Y. Reference numeral 11 indicates the bottom wall 13a and the ice-making cores 16, 16. . . . Banking, 18 is the ice making core 16.16.・・・
・The ice blocks A, A, ... generated on the ice making core 16
,16. . . . A heating tube for further ice removal, into which high-pressure refrigerant from the compressor 9 flows after ice making is completed.

Reference numeral 19 indicates a back wall 13b and a side wall 13c of the ice making tank 13.

A drive device provided over 13c', which drives the rear wall 13b.
The drive motor 20 includes a drive motor 20 fixed to the drive motor 20, and a shaft 22 connected to the rotating shaft of the motor 20 through a joint 21.

This shaft 22 has a crank part 22a in the center of the ice-making tank 13, and both sides of the crank part 22a are supported by pivot plates 23 and 24 fixed to the side wall 13c.

25 is provided on the crank part 22a, and ice blocks A and A float to the top of the ice making water in the ice making tank 13.

This is an ice scraping device for causing ice blocks to fall into the water storage section 12 from a discharge port 13d formed above the side wall 13c of the ice making tank 13.

This scraping device 25 has a shaft 2 fixed to pivot plates 23 and 24.
6 is slidably provided with a long hole 27a, and an arm 27.27 is pivotally supported on the crank portion 22a, and this arm 2
7. It consists of a scraping fin 28 fixed to the tip of 27.

That is, as the shaft 22 rotates, the crank portion 22a
According to the rotation locus (indicated by the dotted line P in FIG.
movement on the inner water bottle and from the outlet 13d to the side wall 13c.
Return movement above the movement towards
).

A gear mechanism 29 is provided at one end of the shaft 22 on the side opposite to the motor 20, that is, within one pivot plate 23.
The second shaft 30 that rotates at a higher speed than the pivot plate 23
is supported by.

Reference numeral 31 denotes a conversion mechanism, which includes a crank 32 pivotally supported by a leaf spring to be described later, and a long hole 34 of a swing arm 33 loosely fitted into one end of the crank 32.

The other end of the crank 32 and the second shaft 30 are connected by a coil spring (elastic body) 35.

36 and 37 are joints that connect the crank 32, the second shaft 30, and the coil spring 35, respectively.

Reference numeral 38 denotes a stirring device, which includes a first stirring fin 39a that faces the bottom surface 13a of the ice-making tank 13 and swings from side to side between two rows of core groups (X group) and (Y group); A second stirring fin 39b that is orthogonally arranged between adjacent ice-making cores 16 and 16 of each group X and Y and swings in the same manner as the first fin 39a; It consists of a swinging arm 33.

At the front end of the folded second fin 39b, there is a first
Auxiliary fins 39 b', 39 b parallel to the fin 39a
' has been established.

In other words, the approximately center portion of the swinging arm 33 corresponds to the ice making tank 13.
The rotation locus of the crank 320 (indicated by the dashed line R in FIG. 3) about the shaft member 40 fixed to the front wall 13e of the
This results in a swing trajectory of the second fin 39a (indicated by the dashed line S in FIG. 3), and a swing trajectory of the second fin 39b (indicated by S' in FIG. 3).

At this time, the swinging of the first fin 39a promotes agitation of the portion of each core group X, Y facing the fin 39a, and the second fin 3
The auxiliary fins 39b' of 9b stir the portion of each group of cores X, Y on the opposite side from the first fin 39a, and the auxiliary fins 39b' of each core group
The stirring fins 39b promote the flow between the cores 16, 16, and eventually stir the entire circumference of the cores 16.

41 detects the braking torque applied to the stirring device 38, stops the ice-making operation, and causes the high-pressure refrigerant to flow into the heating tube 18, thereby moving the ice cubes A, A, . . . from the cores 16, 16, .
・This is a detection device for letting go of ice.

This detection device 41 includes a mounting member 42 fixed to the side wall 13c of the tank 13, and a detection switch 43 fixed to the mounting member 42 and electrically wired to perform the above-mentioned operation.
Then, together with this switch 43, the mounting member 4 is attached with a screw 44.
It consists of a leaf spring (elastic plate body) 45 collinear with 2.

The plate spring 45 is connected to a fixed part 45a which is screwed to the second part.
A curved portion 4 extends in the same axial direction as the shaft 30 of the switch 43 and is housed at the tip of the actuator 46 of the switch 43.
5b, and a pivot portion 45c that pivotally supports the shaft 30, which is bent in a direction perpendicular to the shaft 30.

The curved portion 45b of this leaf spring 45 is deflected by the deflection of the coil spring 35, that is, by the deflection caused by the braking torque caused by the contact of the stirring fin 39a with the ice block A (as shown by the dotted line T in FIG. 4). .

The actuator 46 of the detection switch 43 (indicated by dotted line U in FIG. 4) is actuated by the deviation of this curved portion 45b.

The actuator 46 is electrically wired to stop the ice making operation and start the ice removal operation.

The above-mentioned detection switch 43 and the fixed part 45 of the plate plate 45
a and are simultaneously fixed to the mounting member 42 by screws 47.

By setting the fixing locations for the detection switch 43 and the fixing part 45a in advance, it is not necessary to adjust the positions of the tip of the actuator 46 and the curved part 45b that contacts the actuator 46. It is something.

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

■ Ice-making operation The compressor 9 and drive motor 20 operate, and the ice-making core 1
6.16. ... to generate ice blocks A on the outer periphery, and the first and second stirring fins 39a, 39 are constantly
b and the auxiliary fin 39b' are swung to open the ice making tank 1.
Stir the ice-making water in 3.

2 Detection operation ice making core 16.16. ...When the upper ice block A reaches a certain thickness, the first stirring fin 39a hits the ice block A and this fin 39a stops moving.

Even if the fin 39a is stopped by the ice block A, the motor 20 is still rotating, so if the braking torque around the shaft member 40 causes the coil spring 35 to bend, the leaf spring 45 that pivotally supports the crank 32 will also bend. , actuator 46
operate.

3 By the operation of the actuator 46 of the ice removal operation detection switch 43,
High pressure gas from the compressor 9 is introduced into the heating tube 18 to form the ice making core 16.16. Warm up and release the ice.

4 Discharge operation ice making core 16.16. . . . The ice cubes A that have been released from ice float above the ice-making water, and are scraped into the ice storage section 12 through the discharge port 13d by the scraping fins 28, which are constantly rotating.

The above operations 1 to 4 are repeated to generate ice blocks.

In the above ice-making operation 1, two rows of ice-making core groups X, Y
Since the ice-making water is swung by the first stirring fin 39a on the opposing sides, transparent ice cubes are generated, while on the opposite side of the core groups X and Y, the ice-making water is swung by the auxiliary fins 39b'. is shaken, and clear water can be expected to be produced in this area as well.

Further, since the second stirring fin 39b1 and the auxiliary fin 39b' are provided on the first stirring fin 39a so as to swing at the same time, the structure is not particularly complicated.

As is clear from the above explanation, the stirring device of the ice making machine of the present invention has a large number of ice making cores arranged in at least two rows at equal intervals protruding from the bottom surface of the ice making tank filled with ice making water, Located in the middle of these two rows of core groups,
and a first stirring fin extending in the row direction and swinging in the direction of the core, provided perpendicularly to the first stirring fin,
6. A second stirring field located between adjacent cores of U,
Since the second fin is provided with an auxiliary fin that swings at the tip of the second fin on the opposite side to the swinging part of the first fin, the swinging of the ice-making water is caused by the swinging of the ice-making core. The ice cubes are rocked not only in one direction but from the entire circumference, resulting in ice cubes that are completely transparent, and the ice-making speed is also approximately uniform, resulting in well-shaped ice cubes.

Furthermore, since the second stirring fin is provided on the first stirring fin, only one driving mechanism is required and the structure is not complicated.

[Brief explanation of the drawing]

Fig. 1 is a partial sectional view of the ice maker according to the present invention - an embodiment, Fig. 2 is a sectional view taken along line nu' in Fig. 1, and Fig. 3 is a partial sectional view of the ice maker according to the present invention -
4 is a sectional view taken along line IV-IV' in FIG. 3. 13...Ice making tank, 13a...Lower bottom surface, 16...Ice making core, X, Y...
A group of ice-making cores, 39a...First stirring fin, 3
9b...Second stirring fin.

Claims (1)

[Scope of utility model registration request] A large number of ice-making cores arranged in at least two rows and arranged at equal intervals are protruded from the bottom surface of an ice-making tank filled with ice-making water, and the ice-making cores are located between the two rows of ice-making cores and extend in the row direction. The first part that is taken out and swings in the direction of the ice making core.
A stirring fin is provided perpendicularly to the first stirring fin, and a second stirring fin is located between adjacent cores in each row, and the first stirring fin is parallel to the tip of the second stirring fin. established in
A stirring device for an ice making machine, comprising an auxiliary fin that swings at a portion opposite to the swinging portion of the first fin with respect to the ice making core.