JPS5820145Y2 - frozen dessert making machine - Google Patents

Description

[Detailed description of the invention] The present invention relates to a frozen confectionery manufacturing machine that manufactures snow-like sweets made from carbon dioxide, syrup, and water, soft-serve ice cream made from a so-called mix, and products similar to these. In particular, the present invention relates to torque control of cooling operation in order to maintain appropriate hardness of refrigeration formed in a refrigeration cylinder.

Conventionally, in this type of refrigeration manufacturing machine, when the liquid stock solution supplied into the refrigeration cylinder becomes moderately hard, a stirring device is installed inside the cylinder and an output shaft is connected to the output shaft, which runs through a pipe through the rear wall of the cylinder. A torque detection mechanism is configured to detect this hardness.

That is, the actuating member, which is part of the torque mechanism, moves rearward due to the torque generated by the product curing, and the actuating piece of the member presses the actuator of the torque control switch, thereby controlling the cooling operation to be stopped. ing.

When the torque decreases again, the actuating member returns to normal, the switch is no longer suppressed, and the cooling operation is resumed.

Although the cooling operation is controlled as described above, there is inevitably a slight lag between the timing at which the switch is turned off and the timing at which the cooling operation stops, resulting in the refrigeration cylinder being slightly overcooled and the torque increasing even after the switch is turned off. Become.

The actuating member then moves further rearward from the switched-off position.

In such cases, the switch has no place to escape and is crushed and destroyed by the operating piece of the operating member, resulting in a major problem in which the cooling operation becomes uncontrollable and the machine becomes unusable due to damage to the switch. It's possible.

In view of these points, the present invention aims to address the conventional drawbacks by providing a device that reliably protects the torque control switch from damage, and also to change preferences by providing a device that can vary the hardness of the product. The following describes the case where the present invention is applied to a frozen dessert manufacturing machine that manufactures snow-like confectionery using a mixture of carbon dioxide gas, syrup, and water as raw materials.

As shown in Fig. 1, 1 is a carbon dioxide gas cylinder, which is connected to a regulator 2 for adjusting the discharge amount and pressure, a carbon dioxide valve 3, a closed relay tank 4, and an evaporation pipe 5 for the refrigeration system. Connect to refrigeration cylinder 6.

A syrup tank 7 stores liquid syrup and is connected to the suction side of the pump device 8.

Reference numeral 9 denotes a water tank that stores a predetermined amount of water supplied from the tap.A water tank 7 stores a predetermined amount of water supplied from the tap, and is also connected to the suction side of the pump device 8.

Further, the discharge side of the pump device 8 is connected to the refrigeration cylinder 6 via the relay tank 4 along the same route as the carbon dioxide cylinder 1.

Reference numeral 10 denotes a raw material supply pressure switch that indirectly senses the pressure state inside the freezing cylinder 6 by being connected to the relay tank 4, and controls the supply of carbon dioxide, syrup, and water to the freezing cylinder 6.

11 is a service cock for taking out the product.

Furthermore, 12 is an electric compressor that constitutes a refrigeration system together with the evaporation pipe 5, and 13 is a condenser.

Reference numeral 14 denotes a stirring device disposed within the freezing cylinder 6, and an output shaft 15 of the device 14 passes through the rear wall 6A of the freezing cylinder 6 via a bearing 16.

As shown in FIG. 2, a rotary member 17 having a circular peripheral surface is fixed to the output shaft 15, and a conical groove 18 is formed in the end surface of the rotary member 17.

Reference numeral 19 denotes an actuating member fitted so as to be in contact with the peripheral surface and end surface of the rotating member 17, and a conical groove 20 is formed on the end surface of the rotating member 17, which corresponds to the groove 118 on the normal rotating member 1γ side. A hard ball 21 is interposed between the grooves 1B and 20.

A through hole 22 is formed in the actuating member 19 so as to maintain mutual contact between the end surfaces of the actuating member 19 and the rotating member 17, and a guide screw 24 is inserted into the through hole 22 from the outer surface via the spring body 23.
The rotary member 17 is inserted into the screw hole 25 and connected to the screw hole 25 formed in the end surface of the rotating member 17.

Therefore, by the action of the spring body 23, the operating member 19 and the rotating member 19 press against the rotating member 17, and normally the two are kept in contact.

Further, a continuous V-shaped groove 26 in cross section is formed on the outer peripheral surface of the actuating member 19.
A V-belt 27 is applied to the layer 26, and power from a drive device (not shown) is transmitted to the actuating member 19 via the V-belt 27.

Furthermore, the rotation of the actuating member 19 is transmitted to the rotating member 17 via the ball 21 to rotate, and finally the power for rotation is transmitted to the stirring device 14.

The through hole 22 is a hole formed in an arc shape in the rotation direction.

Further, the actuating member 19 has an actuating piece 28 projecting rearward from the center of its outer surface, and an actuator 29A of an automatic return type torque control switch 29 for controlling the operation of the electric compressor 12 is associated with this actuating piece 28.

The switch 29 is supported on a base plate 33 fixed to a movable plate 32 whose one end is pivotably supported on an angle 30 .

Further, the upright plate 34 is extended from the upper end side of the movable plate 32,
A front support plate 35 and a rear support plate 36 are extended from the angle 30 to face the erected plate 34, and the erected plate 34 is positioned between them.

Then, each plate 34, 35, 36 is passed through with a bolt 37, so that only the standing plate 34 is free from the bolt 37.

Further, 38 is a bolt 37 between the front support plate 35 and the standing plate 34.
A double nut that moves back and forth inside serves as the adjustment device of this invention.

Furthermore, one end is supported on the standing plate 34, and the other end is supported on the rear support plate 36.
A holding spring body 39 is provided which is supported by and has a bolt 337 wound around it.

Thus, the spring body 39 holds the upright plate 34 in a position where it abuts the double nut 36.

Next, the operation of the present invention will be explained.

First, by operating the pump device 8 and opening the carbon dioxide valve 3, carbon dioxide, syrup, and water are supplied into the freezing cylinder 6 via the relay tank 4.

When the pressure switch 10 detects that a certain amount of these has been supplied, the pump device 8 and the carbon dioxide gas valve 3 are deactivated to stop the supply of the mixed liquid.

On the other hand, the mixed liquid supplied to the freezing cylinder 6 is cooled by operating the electric compressor 12, and is turned into a snow-like product while being stirred by the stirring device 14.

As the product hardens, the torque gradually increases, and this torque acts on the actuating member 19 through the ball 21, so the actuating member 19 moves backward against the spring body 23, causing the actuating piece 28 to move backward. actuator 29A of control switch 29 is pressed.

Then, the switch 29 disables the electric compressor 12 and stops the cooling operation.

However, since the timing at which the electric compressor 12 stops is slightly delayed from the timing at which the control switch 29 is turned off, the refrigeration cylinder 6 becomes slightly overcooled, and the torque further increases.

As a result, the actuating member 19 begins to move further rearward, and the actuating piece 28 abnormally presses the actuator 29A.

Then, since the upright plate 34 is free from the bolt 337, the movable plate 32 rotates rearward about the shaft 31 against the holding spring 39, and the control switch is rotated accordingly. Since the switch 29 also retreats to escape from the abnormal suppression of the actuation piece 28, the switch 29 is protected from the abnormal suppression of the actuation piece 28.

(Situation shown in Figure 3). The above operation is a description of the device that works to protect the torque control switch 29 from damage.Next, the operation for varying the hardness of the product will be described.

For example, when adjusting the product to make it softer, move the double nut 38 forward as shown in FIG.

Furthermore, since the upright plate 34 is pressed by the holding spring 39, the movable plate 32 rotates forward about the shaft portion 31, and when the forward position of the double nut 38 is determined, the upright plate 34 moves toward the double nut 38. It stops when it comes into contact with 38.

Therefore, since the torque control switch 29 naturally moves forward, the actuator 29A comes closer to the actuating piece 28.

That is, the switch 29 is turned on. The OFF interval is shortened and the product is controlled to be soft.

On the other hand, if you want to adjust the product to be harder, use double nut 3.
8 may be moved in the opposite direction to that shown in FIG. 4, that is, to the rear. Since the torque control switch 29 is moved rearward, the actuator 29A moves away from the actuating piece 28.

That is, the interval between ON and OFF of the switch 29 becomes longer, and the product is controlled to be in a hard state.

As described above, by delicately moving the double nut 38 back and forth, the hardness of the product can be delicately varied, allowing users to freely select their preference.

Note-1: In the above-described embodiment of the present invention, the movable plate 32 is configured to be rotatable, but the lower support structure of the movable plate 32 may be completely symmetrical to the upper support structure of the movable plate 32. In this case, a double nut is used. Although it is necessary to adjust the switch 38 up and down, the movable plate 32 moves horizontally back and forth, and the torque control switch 29 also moves horizontally accordingly, so even if the button is pressed in other embodiments, the same effect as in the above embodiment can be obtained. It can be demonstrated.

As described above, the present invention is designed so that, for example, when the actuating piece abnormally presses the actuator of the torque control switch due to abnormal hardening of the product due to overcooling of the refrigeration cylinder when the timing of stopping the electric compressor is delayed, the switch retracts. Therefore, it is a protection device that can reliably prevent the switch from being damaged, and its practical effects are great.

In addition, by changing the position of the control switch using the adjustment device, the hardness of the product can be subtly varied, giving the advantage of being able to freely select the product preference.Since a double nut is used as the adjustment device, there is no possibility of loosening. There is no deviation in the setting position.

Moreover, under normal switch operating conditions, the retaining spring acts to reliably hold the switch in the position set by the adjustment device, so that operational reliability is extremely high.

[Brief explanation of drawings]

Figure 1 is a system diagram of the frozen dessert making machine of the present invention, Figure 2 is an enlarged view of the main parts of the present invention with a part cut away, Figure 3 is an explanation of the operation in the event of an abnormality, and Figure 4 is the hardness adjustment. FIG. 28... Actuation piece, 29... Torque control switch 29A... Actuator, 38... Adjustment device (double nut), 39... Holding spring body.

Claims (1)

[Scope of utility model registration request] A freezing cylinder for cooling the supplied liquid stock solution and a stirring device for stirring the liquid stock solution cooled in the cylinder are provided, and a rotating member fixed to the output shaft of the stirring device passing through the rear wall of the cylinder is provided. Providing an actuating member pressing through the spring;1. The rotation of the driving device is transmitted to the actuating member via a belt, the rotation of the actuating member is transmitted to the rotating member, and finally the power is transmitted to the stirring device, and the device further protrudes rearward from the actuating member. The actuating piece is associated with an actuator of an automatic return type torque control switch, and the actuating member is moved rearward against the springing force of the spring body by the torque generated as the product hardens, and the actuating piece In a refrigeration manufacturing machine in which the cooling operation is stopped by pressing the actuator of the switch, there is provided an adjustment device for controlling the hardness of the product by moving the switch back and forth, and a position set by the adjustment device. A holding spring for holding the switch is provided, and when the actuating piece abnormally presses the actuator due to abnormal hardening of the product, the switch is moved back against the tensioning force of the holding spring. Features of frozen dessert making machine.