JPS5995849A - Device for controlling cooling operation of production unit for ice cream - Google Patents

Abstract

PURPOSE:To obtain a product having given hardness, by equipping a device for detecting the viscosity of product and controlling the operation of a cooler with a timer capable of setting arbitrarily a time from the detecting of the given lower limit by a viscosity detector to the beginning of the operation of the cooler. CONSTITUTION:For example, in a machine for preparing ice cream such as soft cream, the torque switch 11 is connected to the shaft 7A of the stirrer 7 for agitating a product in the cooling chamber 1. When the product has high viscosity and the torque switch 11 is connected to the upper limit contact point 11A, the operation of a cooler is stopped. When the viscosity of the product is reduced by natural heating, and the torque switch 11 is connected to the lower limit contact point 11B, the timer 14 is started, and, after the time set by the timer 14 is passed away, the operation of the cooler is started. By making the setting time of the timer change arbitrarily, the viscosity of the product, namely, hardness can be adjusted arbitrarily.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of the Invention The present invention relates to a frozen dessert manufacturing machine that detects the hardness, or viscosity, of a product in a cooling chamber to control the operation of a cooling device that cools the cooling chamber. The present invention relates to a device that controls cooling operation of a cooling device.

In addition, the frozen desserts of the frozen dessert making machine that are the object of the present invention include Shinkai, frozen carbonated drinks, soft serve ice cream, ice cream, and
This is a generic name for products similar to these.

(B) Prior art and its problems In the conventional cooling operation control device, the viscosity detection device that detects the viscosity of the product based on torque or temperature, etc., stops the operation of the cooling device when a predetermined upper limit value of viscosity is detected. However, when a predetermined lower limit of viscosity is detected, the operation of the cooling device is restarted. In this way, with the cooling control method using a detection device, it is only possible to provide products with a viscosity within a certain range at all times, and customer preferences tend to change slightly throughout the year (when it is cold or when it is warm). I couldn't deal with this because of the circumstances.

(C) Purpose of the Invention The present invention responds to customer requests by variably adjusting the hardness of a product, and in particular, cooling that allows adjustment to be softer than the lower limit detected by a viscosity detection device. This provides an operation control device.

B) Embodiment of the Invention Figure 1 shows the configuration of a cooling system for a frozen dessert manufacturing machine whose cooling operation is controlled by the device of the present invention. This is a cylindrical cooling chamber, and the cooling of the cooling chamber (]) is
This is carried out by a cooling device consisting of an evaporation pipe (3) wound around the evaporation pipe (3), an electric compressor (4), a condenser (5), a pressure reducing device (6), etc. connected in sequence to the evaporation pipe (3). (7)
is a stirring device that stirs the product in the cooling chamber (1),
The rotation of the stirring motor (8) is transmitted to the goo IJ-f91, which is then transmitted to the stirring device (7) via the torque coupling QQI. Therefore, the viscosity detection device employed in the present invention for detecting the hardness, that is, the viscosity of the product, is composed of the torque coupling (10) and the torque switch Qli, and the stirring device detects an increase or decrease in the viscosity of the product. The torque is transmitted to the torque coupling 00 through the stirring shaft (7A) of (7), and based on this, the torque switch (1υ opens and closes) depending on the displacement of the torque coupling (lO). This is the stock solution supply line connected to the cooling room (1), and when there is a shortage of products to the cooling room (1), the stock solution is replenished from the supply line (12+) to the cooling room (1).

Next, the configuration of the main electric circuit of the present invention will be explained based on FIG. (13A) and (1, 3B) are interlocking manual power switches, (8) is the stirring motor, and ■) is the torque switch. When a predetermined upper limit value of product viscosity is detected, the upper limit contact (11A) is activated. When a predetermined lower limit value of the viscosity of the product is detected, the contact point is switched to the lower limit contact (11B). 0 (a) is a variable timer connected via the lower limit contact (IIB), and the normally open timer contact (
14A) can be arbitrarily adjusted to oJ. (4) is the electric compressor connected via the timer contact (14A). Note that the timer contact (14A) returns to normal when the power supply to the timer 04) is cut off.

Next, the present invention will be explained in detail. A predetermined amount of the stock solution supplied from the supply line 02) to the cooling chamber (1) is stirred and cooled, and when it reaches a predetermined viscosity, the torque switch 0υ switches to the upper limit contact (
In the stopped state of cooling operation located at IIA),
If the product in the cooling chamber (1) is externally extracted from the service cock (2) and the stock solution is replenished into the cooling chamber (1), or if the cooling operation continues to be stopped, the product in the cooling chamber (1) will be The product gradually softens, and when the viscosity of the product reaches a predetermined lower limit, the torque switch 0υ switches from the upper limit contact (11A) to the lower limit contact (11B) and starts the variable timer (1
4) Start. Then, in advance, the operation section (16)
When the one hour set by the timer elapses, the timer contact (14A) closes and the electric compressor (4) is activated to start cooling operation.

As a result, the product in the cooling chamber (1) gradually hardens again, and when its viscosity reaches a predetermined upper limit value, the torque switch 0υ changes from the lower limit contact (IIB) to the upper limit contact (IIA).
Then, the electric compressor (4) is stopped to stop the cooling operation, and the variable timer (141 is also energized) and the timer contact (14A) is returned to normal by f.

Therefore, the longer the time set by the variable timer 04), the more flexible the adjustment becomes.Of course, if the time set by the variable timer 141 is set to zero, the viscosity detection device It is also possible to maintain the viscosity within the detection range.Although the embodiment employs a torque detection method as the viscosity detection device, a method of indirectly detecting viscosity based on temperature may also be adopted. .

(e) Effects of the Invention The present invention provides a variable timer that delays the operation of the cooling device for an arbitrary period of time after the viscosity detection device detects the lower limit of the viscosity of the product, and variably adjusts the time set by the timer. This makes it possible to freely adjust the hardness of the product from the predetermined viscosity of 1cm determined by the viscosity detection device in the direction of softness, making it possible to easily provide products with hardness according to preference. .

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration diagram of a frozen dessert making machine of the present invention, and FIG. 2 is an electrical circuit diagram of the main parts. (1)...Cooling room, (4)...Electric compressor, (
u)...torque switch, (11A)...upper limit contact, (1113)...lower limit contact, I...variable timer, (14A)...normally open timer contact.

Claims (1)

[Claims] 1. In a frozen dessert manufacturing machine that detects the viscosity of a product in a cooling chamber and controls the operation of a cooling device that cools the cooling chamber, when the viscosity of the product is detected and a predetermined upper limit value of the viscosity is detected, the cooling device A viscosity detection device that stops the operation of the cooling device, and a variable timer device that starts when the detection device detects a predetermined lower limit of viscosity and starts the operation of the cooling device after an arbitrary time delay. A cooling operation control device for a frozen dessert making machine.