DE9002856U1 - Automatic water pan emptying device for ice machines - Google Patents

Description

GM-O57/9O-WU

Automatic water pan emptying device for ice machines.

The innovation concerns an automatic device for ice machines _for the production of flake ice, with a bowl filled with water up to a certain level, with a rotating evaporator roller which is partially immersed in the water, with an ice scraper arranged above the water and resting on the peripheral casing of the evaporator roller, the front edge of which is parallel to the axis of the evaporator, with a water inlet to the tub and with a water outlet provided at the bottom of the bowl.

The innovation is the _{task of} filling and emptying the water tray with water depending on the operation of the ice cream machine.

This object is achieved with the features in the characterizing part of claim 1 and further advantageous details of the device are claimed in the subclaims.

The advantage of this device is not only that electrically controlled valves are arranged at the water inlet and the water outlet, which are controlled automatically depending on the operating status of the ice machine. When the ice machine is switched on, the valve at the water outlet is first closed and then the valve at the water inlet is opened, whereby the valve at the water inlet is open until the water pan is filled to a certain level and the valve is then closed automatically, but also that when the ice machine is switched off, the valve at the water outlet is opened automatically and the water pan is emptied.

It is also advantageous that when the ice machine is switched on, in addition to opening the valve in the water inlet, an ice build-up sensor, which is arranged next to the evaporator roller, is automatically electrically interrupted with a time delay by means of a time relay and the time relay is only switched off after the water tray has been filled.

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The switch-on delay of the ice build-up sensor is 50 seconds. The time-delayed switch-off of the ice build-up sensor while the water pan is filling ensures that the gear of the steam roller drive is protected from possible damage. As soon as the ice build-up sensor is in the operating position again, the cooling machine runs at full load. Ice is produced.

How the device is designed in detail is explained in more detail below using an example in the drawing.

Fig. 1 is a basic sectional view through the water tank with the evaporator roller and the water inlet and outlet with the electrically controlled valves provided in the water pipes and

Fig. 2 is a diagrammatic arrangement of an ice machine with the automatic water pan emptying device.

The arrangement shown in Fig. 1 consists essentially of the water pan 1, which is provided with a water inlet 2 and a water outlet 3. The electrically controlled valve 4 is arranged in the water inlet 2 and the electrically controlled valve 5 is arranged in the water outlet. 6 designates an ice build-up sensor which is arranged adjacent to the rotating evaporator roller 7. 8 shows the ice scraper and 9 the water standing up to a certain level in the water pan 1. 10 designates a layer of ice on the evaporator roller 7, which is detached from the evaporator roller 7 by the ice scraper 8 and broken into flake ice.

Figure 2 shows an ice machine for producing flake ice, which is equipped with the new automatic emptying device for the water tank 1. In detail, 12 means a housing-shaped support frame for the ice machine with a cooling machine 13 mounted there, which supplies the coolant to the evaporator roller 7 via the coolant lines 14 via a rotary inlet 16.

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D1<? Evaporator roller 7 is arranged in the water pan 1 and is driven by the gear motor 15. 8 shows the ice scraper, 17 marks the flake ice ejection and 6 means the ice buildup sensor, whose electrical control line 18 leads into the electrical switch box 19, in which the time relay mentioned at the beginning is also arranged to delay the switch-on of the ice buildup sensor 6.

The figure 2 also shows the water inlet 2, in whose pipe the

electrically controlled valve 4 is provided, the electrical control:

line 18 also, like the corresponding control line of the second 1 electrically controlled valve 5, which is provided 1m water inlet 3,

1m electrical control box 19 is connected 1st. 20 designates the manually operated &iacgr;

hinged electrical ON/OFF switch for the ice cream maker, whose ■;

Control line 18 also leads into the electrical box 19. /<

Claims (4)

GM-057/90-WU Protection claims 1. Automatic water tank emptying device for ice machines for producing flake ice, with a tank filled with water up to a certain level, with a rotating evaporator roller which is partially immersed in the water, with an ice scraper arranged above the water, resting on the peripheral casing of the evaporator roller, the front edge of which is parallel to the axis of the evaporator roller
runs, with a water inlet to the tub and with a water outlet provided at the bottom of the tub, characterized in that an electrically controllable valve (4, 5) is arranged both at the water inlet (2) and at the water outlet (3), and that the valve (5) at the water outlet (3) is open when the ice machine is electrically switched off. 2. Device according to claim, characterized in that a time relay is arranged in the switch-on control circuit of the ice machine for controlling the valve (4) in the water inlet (2). 3. Device according to claim 1 and 2, characterized in that the time relay is switched off after the valve (4) in the water inlet (2) is closed. 4. Device according to claims 1 to 3, characterized in that the time relay is coupled to an ice build-up sensor (6) of the evaporator roller (7).