JPS58217170A - Ice machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an ice making machine that produces large blocks of ice that can be crushed into irregularly shaped ice, and more particularly to an ice making machine that freezes ice by supplying an appropriate amount of water to an ice making tank with an open top.

Therefore, the present invention prevents air bubbles and impurities from being mixed into the ice, provides highly pure and transparent block ice, and also concentrates impurities in the remaining water of ice making and easily drains it out of the ice making tank. The purpose is to treat wastewater.

An embodiment of the present invention will now be described based on the drawings. (1
) is an evaporation pipe (2) that forms an evaporation path for refrigerant on the outer surface.
This is a stainless steel ice making tank with an opening at the top (IA) and a heater (3) as a heating device.
4), and the top opening (IA) of the ice making tank (1) is closed by an opening/closing door +61 attached to the main body (4) with a hinge (5). (7) is a hollow cylindrical body that is detachably installed on the bottom (IB) of the ice making tank (1), and the cylindrical body (7)
The upper end (8A) extends to the inner surface of the ice making tank (1) at a contact position (or a position very close to it), and the upper end (8A) is connected to the evaporation pipe (2).
Four vertical plates (8) located approximately on the extension of the uppermost part of the piping (2 people) and four horizontal plates (9) located between the plates (8) are formed, and the tube At the upper end of the body (7) there is a handle 11 (I
A handle 0ω is formed at the upper end of the cylindrical body (7), and a plurality of communication ports (11) are formed in the cylindrical body (7) to communicate the internal space with the ice making tank (1). . Therefore, each plate body (8) and (9) connects the cylinder body (7) to the ice making tank (1).
The upper end (8A) of the vertical plate (8) serves as a guide for the water supply level. It should be noted that the forms of the positioning member, handle (10), and communication port (tl) are not limited to the embodiments and may be modified.

az is the bottom surface (IB) of the ice making tank (1) so that it is surrounded by the lower end of the cylindrical body (7) installed at a predetermined position of the ice making tank (1).
The drain port is connected to a drain pipe (13) and is normally closed by a drain plug (14).

Housing 9 includes a drift fin for forcing the water in the ice making tank (1) to flow, a plurality of rotary blades fixed to the top and bottom of the shaft, and an upwardly toothed structure screwed onto the upper end of the shaft and whose lower surface touches the bearing (161). Consists of a first connecting member (19), a motor ■ installed in the door (6), and a second connecting member c!J screwed onto the lower end of the output shaft of the motor ■ that penetrates the bottom surface of the door (6). The first connecting member (1'J and the second connecting member C
When the door (6) is closed, the rotation of the motor (A) is transmitted to the rotary blade (CI) (17), thereby causing the rotary blade CI to flow the water in the ice making tank (1). Further, in the machine room K divided at the lower part of the main body (4), a refrigeration system electric compressor (C) and a condenser Q East condenser air cooling blower are arranged.

Next, the electric circuit of the present invention will be explained based on FIG.

06) is a manual ON automatic return type ice making start switch, (5
) is the first relay, which has a self-holding contact (27A) and a normally open contact (27B). (Support)) is an ice making timer that is set to end the ice making operation when the ice that gradually freezes from around the ice making tank (1) toward the center comes into contact with or comes close to the cylinder (7). The set time is determined, and the cylinder body (7
) is moving fastest due to the flow device α9, so the water in the cylinder (7) is difficult to freeze, and the set time can be determined relatively easily by experiment. Furthermore, the ice making timer ■ has normally closed time switches (28A) and (28B) and normally open tie 1 switches (28C) and (
28D)-, the electric compressor C23) is connected via a normally closed time switch (28A), the blower C23) is connected via a normally closed time switch (28B), and the normally open The second relay (2) is connected through the time switch (28C), and the heater (3) is connected through the normally open time switch (28D).

In addition, when using hot gas as a heating device, connect a hot gas nozzle (lube) to the connection position of the heater (3),
The normally closed time switch (28A) can be abolished and the electric compressor can be operated continuously. (2G is the flow device (1)
Two motors, ■ is the normally open contact of the second relay (29A)
The ice release timer is connected through the ice release timer and has a normally closed time switch (30A) for releasing the self-holding of the first relay surface.

Next, the ice making and draining operations of the present invention will be explained. First, the door (
6), open the cylinder (7), insert the cylinder (7) into the ice making tank (1), fill the vertical plate (8) with water to a point slightly below the upper end (8A) in anticipation of ice expansion, and then open the door (6). close. Then, the first
The connecting member a3 and the second connecting member Cυ are engaged (・). Then, when the ice making start switch 2 is pressed, the first relay (2) is energized and the self-holding contact (27A) and the normally open Close the contact (27B). Therefore, even if the ice-making start switch (■) automatically returns, the first relay is self-held, and by closing the normally open contact (27B), the ice-making timer (Incorporated),
The electric compressor and the outside of the blower operate to start ice-making operation. At the same time, the motor is energized, and the rotation of the motor is transmitted to the rotary blades (1).The rotary blades (18) rotating inside the cylinder (7) ) communicate with each other through the communication port (11), which allows the water in the ice making tank (1) to flow sufficiently.As a result, air bubbles existing in the water are released into the air, and impurities are kept in a direction that does not freeze. That is, it moves toward the center of the ice making tank and is finally concentrated in the remaining water in the unfrozen cylinder (7).

Then, when the set time of the ice making timer ■ has elapsed, the normally closed time switches (28A) and (28B) are closed. −
The ice making operation is completed by opening the electric compressor (c) and the blower (c) and stopping the operation of the electric compressor (c) and blower (c). At the same time, the normally open time switches (28C) and (28D) close to excite the second relay ■, close its normally open contact (29A) to start the deicing timer, and energize the heater (3). Start ice removal operation. As a result, the surface of the ice is slightly melted and the close contact between the ice making tank (1) and the ice is released.

Then, when the set time of the ice release timer ■ has elapsed, the normally closed time switch (30A) opens and the first relay (27
) is de-energized and its self-holding contact (27A) and normally open contact (27B) are normally opened, thereby cutting off the power to the motor (a) and the rotor blades 0& stop rotating. Furthermore, the power to the ice making timer ■ is cut off, and each time switch (28A), (28B), (28C) and (28
D) returns to normal, cuts off the power to the heater (3), de-energizes the second relay wire, and closes its normally open contact (2).
9A, ) is opened to cut off the power to the ice removal timer example, and the normally closed time switch (30A) is closed normally to end the ice removal operation and enter a standby state for the next ice making.

The reason why the motor is kept rotating even during takeoff is that even if the electric compressor stops, there is a slight overrun in ice making.
This is to prevent impurities from freezing during this overrun if the rotation of the rotary blade 0& is stopped at this time.

After completing the ice making and ice removal operations as described above, the door (
6) is opened (and the engagement between the first connecting member 0 and the second connecting member (21) is released as shown by the dashed line in FIG. 7) is pulled up, the ice Gυ is taken out of the ice making tank (1) as shown in Figure 4, and this ice 1:lIJ is removed from the ice cube (7) by applying a weak impact to the partition with an ice pick, etc. The ice is separated, and further, this ice is crushed into a large number of amorphous ice pieces using an ice pick or the like, and is preferably used in alcoholic beverages and the like.

When the ice is taken out of the ice making tank (1), as shown in Fig. 5, the water in the cylinder (7) with concentrated impurities and the water melted during the ice removal operation flow into the ice making tank (1). The residual water G2 accumulates at the bottom of the drain, and by removing the drain plug 1141, all of this water is drained from the drain port (12+) through the drain pipe 137. The same reference numerals will be used for the same components as in the above embodiment, and detailed explanation thereof will be omitted.

Other embodiments differ from the above embodiments in flow device and drainage structure. The flow device consists of an air pipe □□□ supported by a shaft/receiver (I61) press-fitted into the upper part of the cylinder (7), a soft air receptacle connected to the upper end of the brass pipe, and an opening/closing door (61).
) and air pump 35)
When the door (6) is closed, the air receiver is constituted by an air outlet (9) which is connected to the discharge pipe (to) of the air outlet and which matches the part (2).

In addition, the drainage structure is provided with a drain pipe (toward) that extends to the outside of the main body in continuation with the drain port (12), and the drain pipe ■ is made of a flexible material on the outside of the main body, and its open end is made of a flexible material. (3
□ is located at the top of the evaporator) cube (2 people) and ice making tank (
1) the main body (4) to be held between the top openings (IA);
It is fitted into a holder fixed to the back side of the holder.

Further, the electric circuit can be connected to the air pump □□□ at the connection position of the motor bracket in the above embodiment.

As the ice water flows, air bubbles mixed in the ice making water are released into the air in the same way as described above, and impurities do not freeze (in other words, they move toward the center of the ice making tank (1) and move towards the center of the ice making tank (1). Body (7
) is concentrated in the residual water.

After finishing the ice making operation and dehydration operation and finishing the ice removal work, remove the drain pipe (to) from the holder θ and attach it to the open end (3
When the pottery is directed downward from the drain port 0z as shown by the dashed line in Figure 6, the remaining water collected at the bottom of the ice making tank (1) will drain into the ice making tank (1).
) All water is drained outside. After draining the water, stop the drain pipe (branch) again in the holder □□□ in preparation for the next ice making.

As described above, the present invention creates a non-freezing water region inside the cylinder to concentrate impurities, and also forms a drainage port at a position surrounded by the bottom end of the cylinder, so that the area around the drainage port is This has the practical advantage that residual water containing impurities that do not freeze and melted water from the de-icing operation can be drained from the ice removal system, and the water can be reliably treated through the drain port after one operation is completed.

In addition, a flow device is installed inside the cylinder to force the ice-making water to flow during the ice-making operation, making it possible to produce extremely pure and transparent ice.

[Brief explanation of drawings]

Fig. 1 is a longitudinal sectional view of the ice making machine of the present invention, Fig. 2 is a cross sectional view thereof, Fig. 3 is an electric circuit diagram of the present invention, and Fig. 4 is an oblique view showing the state of ice taken out of the ice making tank. The parent diagram, FIG. 5, is an explanatory diagram of the drainage operation, and FIG. 6 is a longitudinal sectional view of an ice making machine showing another embodiment of the present invention. (1)...Ice making tank, (7)...Cylinder, 0...Flow device, az...Drain port, ■...Ice making timer.

Claims (1)

[Claims] 1. A main body with an insulating structure that has an ice making tank with an opening on the top and a refrigerant evaporation passage and a heating device such as a heater on the outside;
an opening/closing door that closes the top opening of the ice making tank; a hollow cylinder that is removably installed approximately at the center of the bottom of the ice making tank and has an internal and external communication port; and a hollow cylinder that is placed inside the cylinder to force water A flow device for causing the ice to flow, a control device for terminating the ice making operation when ice comes into contact with or comes close to the cylindrical body, and a drain port surrounded by the lower end of the cylindrical body is provided on the bottom surface of the ice making tank. An ice maker with the following features: