JP2678764B2 - Heating and discharging method and equipment for vending machines - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention implements a method of heating a beverage can with a high-frequency induction heating coil vertically installed in a vending machine, and discharging it from the coil after heating, and this method. Related to the device.

(Prior Art) An example of this type of apparatus is shown in Japanese Patent Publication No. 56-2758. As shown in FIG. 5, this apparatus includes a high frequency induction heating coil 1 provided vertically, a horizontal shaft 2 supporting the coil 1, and a rotary solenoid mechanism 3 for rotating the horizontal shaft 2. Beverage can A guided by the upper guide plate 4
Goes in the direction of the arrows a, a, enters the coil 1 in an upright state, and is supported.

Next, the coil 1 is energized to warm the canned beverage to a predetermined temperature, and then the rotary solenoid mechanism 3 is actuated to rotate the horizontal shaft 2 in the direction of arrow b by about 120 °, and the coil 1 is indicated by a two-dot chain line. Rotate to the position shown. There, the beverage can A in the coil 1 is delivered to the lower guide plate 5 and delivered to the outlet of the vending machine.

Another example is shown in Japanese Examined Patent Publication No. 59-19395. As shown in FIG. 6, this apparatus has a high frequency induction heating coil 6 provided vertically, a canned support plate 7 that moves up and down in the coil 6, and a drive device that moves the support plate 7 up and down (this is Vertical rod 8 having the support plate 7 fixed to the upper end
, One end side is rotatably connected to the lower end of the vertical rod 8 and the other end side is rotatably attached to the fixed pin 9, and the swing lever 10 extends in the horizontal direction, and the lower end is an intermediate portion of the swing lever 10. A connecting rod 13 which is rotatably connected and whose upper end is rotatably attached to a pin 12 provided upright on the periphery of the rotary plate 11.
Consisting of ) And a canning guide device (the swing lever 10 described above).
Of the arm 14 whose lower end is connected to a portion between the fixing pin 9 and the mounting portion of the connecting rod 13 and which extends upward, and one end of which is connected to the upper end of the arm 14 and whose central portion rotates to the fixing pin 15. And a swing guide plate 16 that is freely attached). Reference numeral 17 is a spring that constantly pulls the swing lever 10 upward, and 18 is a guide plate to the outlet.

In this device, the canned food supporting plate 7 is located at the lower end of the coil 6 at the position shown by the solid line in FIG.
Is located on the lower right side of the outlet B and is descending to the left, it falls from the outlet B of the canned food A, is guided by the swing guide plate 16 and enters the coil 6 in an upright state and is supported. .
After energizing the coil and heating it to a predetermined temperature, the rotating plate 11
After turning 1/2, the canned food support plate 7 rises to push the canned food inside the coil 6 out of the coil. The swing guide plate 16
Is in the state of descending to the right as shown by the chain double-dashed line, and the cans pushed up fall down on the rocking guide plate 16 toward the right in the figure, and stand upright on the guide plate 18 to the outlet. .

(Problems to be solved by the invention) The waiting time from inserting a coin into a heating type vending machine of this type until the heated canned beverage comes out to the outlet is longer than it actually is. Feeling, frustrating and winning. This tendency is particularly noticeable when using vending machines installed outdoors in winter. The above-mentioned conventional device has a problem in that the waiting time becomes long due to its manufacture.

It is an object of the present invention to provide a heating and discharging method and apparatus which shorten the waiting time.

(Means for Solving the Problem) In order to achieve the above object, the method of the present invention is such that the canned beverages contained in the vending machine are erected one by one in a high-frequency induction heating coil vertically provided in the vending machine. In addition to receiving at, and supported on the surface of the canned receiving plate disposed below the high-frequency induction heating coil, and heated the beverage canned to a predetermined temperature in the supported state, the heated beverage canned In the heating and discharging method for discharging from the high-frequency induction heating coil, while heating the beverage can, by rotating the can receiving plate, the beverage can is rotated about its axial center, Then, the canned food receiving plate is moved laterally outward from below the high-frequency induction heating coil, and the heated canned food product is dropped and discharged from the inside of the high-frequency induction heating coil by its own weight. It is characterized by.

The device of the present invention receives the canned beverages contained in the vending machine in an upright state one by one in a high frequency induction heating coil vertically provided in the vending machine, and is arranged below the high frequency induction heating coil. Is placed on the supporting surface of the canned plate, and the high frequency induction heating coil is energized to heat the canned beverage to a predetermined temperature in the supported state, and the heated canned beverage is heated to the high frequency induction heating coil. A heating and discharging device for discharging from inside, which is installed vertically and receives a high frequency induction heating coil for each one of the canned beverages in an upright state from above, and closes the lower side of the high frequency induction heating coil close to the lower surface thereof. And a can receiving plate for placing the received can of beverage on the support surface, and heating the beverage to the predetermined temperature by energizing the high frequency induction heating coil while the can of beverage is placed. A rotator capable of rotating the stuffing plate on its central axis and the can stuffing plate and the rotator are arranged at one end side, and an intermediate portion is supported by a vertical support shaft so that the canning plate can be swung laterally. The supporting arm and the other end of the supporting arm are connected to each other, and the can receiving plate is reciprocally oscillated from the lower position of the high frequency induction heating coil to the outer side position in the lateral direction to And a cam device for closing the door.

(Operation) In the present invention, since the beverage can is heated while rotating, the liquid in the can is added to the convection due to heating by the flow generated by the centrifugal force due to the rotation, and the liquid from the can wall changes from the can wall to the liquid as compared to the case where the beverage can is stationary. The heat transfer efficiency is improved and the heating time is shortened.
Moreover, since the cans are dropped vertically downward from the coil, the cans are discharged from the shortest path, and this also shortens the time.

(Embodiment) An embodiment of the present invention will be described below with reference to FIGS.

As shown in FIGS. 1 and 2, the apparatus of this embodiment rotates a high frequency heating coil 20 installed vertically and a canned beverage A placed near the lower surface 20a of the high frequency heating coil 20 together. A canned receiving plate 21 to be driven, and a motor 22a for rotating the canned receiving plate 21 about its axis XX.
Rotating device 2 including drive belt 22b, V pulleys 22c and 22d
2 and the vertical axis 21a supporting the canned plate 21 are rotatably
A support arm 23 which is supported at the end and has the rotating device 22 attached thereto, is supported at an intermediate portion by a vertical support shaft 23a, and is horizontally rotatable about the support shaft 23a, and the support arm 23. 24a of the cam disk which is located in the groove 23b at the other end and is in contact with both projecting pieces 23c, 23d forming the groove 23b.
A cam device which is composed of a shaft 24b connected to an eccentric part of 24a and a motor 24c for rotating the shaft 24b, and which reciprocates between the position directly below the high frequency induction heating coil 20 and the position outside the high-frequency induction heating coil 20 on the canning receiving plate 21. 24 and.

Incidentally, 25 is a beverage canning holding frame, 26 is a direction changing plate for vertically directing the beverage canned product that has come out of this holding frame 25, and 27 is a guide for guiding the beverage canned product whose direction is changed into the high frequency induction heating coil 20. A cylinder, 28 is provided directly below the high frequency induction heating coil 20, and is a guide plate for guiding the canned beverage discharged from the coil directly below to the outlet 29, and 30a and 30b (Fig. 2) stop the swing of the support arm 23. A micro switch for determining the position, and 31 is a stopper for positioning the canned receiving plate 21 at a position where the receiving plate 21 and the high frequency induction heating coil 20 match each other.

Next, the heating and discharging method of beverage cans by the above-mentioned apparatus will be described.

First, when a coin is inserted into the vending machine, the beverage canned food A, which is in the high frequency induction heating coil 20 and placed on the canned food receiving plate 21 in advance, is placed on the motor 22 of the rotating device 22.
By the operation of a, the pulley 22c, the belt 22b, the pulley 22d, the vertical axis
It is rotated together with the rotating can receiving plate 21 via 21a, the high frequency induction heating coil is energized simultaneously with the start of the rotation, and the beverage can is induction heated while rotating. When the beverage can is heated to a predetermined temperature, the energization is stopped, the can receiving plate 21 stops rotating, and then the motor of the cam device 24 is turned on.
When the cam disk 24a is actuated, the cam disk 24a is rotated about a half turn, and the support arm 23 is horizontally swung in the direction of the arrow in FIG. At this time, the canned receiving plate 21 is exposed to the outside from directly below the hollow cylinder formed by the high frequency induction heating coil. There, the beverage cans that were in the coil are discharged from the coil,
It falls straight down and is received by the guide plate 28 and reaches the outlet 29. In this embodiment, as shown in FIGS. 3 and 4, the upper surface of the canned receiving plate 21 receives the annular ridge A1 at the bottom of the canned beverage A, so that the surface of the canned receiving plate 21 is made of a hard elastic material and has small protrusions on the surface. A plurality of anti-slip rings 32, and inclined surfaces 33a, 33b on the outer peripheral surface side and the inner peripheral surface side that slightly incline and rise from both sides in the circumferential direction of the anti-slip ring 32 are provided, and the inclined surface 33a is annularly flat. The surface 34a and the inclined surface 33b are connected to the circular flat surface 34b. Therefore, the canned beverage A in contact with the anti-slip ring 32 rotates together with the canned receiving plate 21, and after the rotation is stopped, the annular ridge A1 of the canned beverage A slips when the receiving plate 21 starts to move horizontally. Move from stop ring 32 to slopes 33a, 33b, then flat 3
4a, 34b, and moves along the flat surface and leaves the canned receiving plate 21 without resistance and falls directly below.

A canned corn potage soup filled in a 250 g steel can was inserted into the high-frequency induction heating coil of the above device, and the pedestal supporting the can was rotated at a speed of 1500 times / min while a frequency of 7.5 Hz. With output of 7kW, canned food at 35 ℃
After induction heating up to 55 ° C., it was taken out from the high frequency induction heating coil.

The time required for heating and taking out (discharging) were 4 seconds and 0.5 seconds, respectively.

On the other hand, for comparison, the conventional device shown in FIG. 5 and FIG.
When induction heating was similarly performed at 7.5 KHz and an output of 7 Kw, in both cases, after about 2 seconds had elapsed, smoke was generated from the printed coating film of the can, so heating was stopped.

Therefore, only the output is reduced to 3Kw, the frequency is still 7.5KHz, the same canned corn potage soup canned from 35 ℃ to 55 ℃.
After induction heating up to, it was taken out.

The time required for heating and taking out (discharging) was 9 seconds and 1 second in both cases.

In this comparative experiment, 7.5 kHz was used as the frequency because when a high frequency of 10 KHz or higher was used,
According to the Radio Law, it is necessary to obtain a special permit, and for vending machines such as vending machines that are desirable to be distributed in large quantities in the market, it is advantageous to use those below 10 KHz that do not require a permit. by.

From the results of the above comparative experiments, it can be seen that the use of the method and apparatus of the present invention can significantly reduce the time required for heating and discharging, as compared with the case of using the conventional apparatus.

(Effects of the Invention) According to the present invention, a beverage can that stands upright in the high-frequency induction heating coil is heated while rotating, and discharged from the high-frequency induction heating coil directly below. As a result, the processing time and the time can be shortened. Therefore, it is possible to shorten the waiting time from the coin insertion into the vending machine until the heated canned beverage comes out to the outlet.

[Brief description of the drawings]

FIG. 1 is a side view of an apparatus according to one embodiment of the present invention, and FIG.
II-II arrow view except the guide plate 28 in the figure, FIG. 3 is a plan view showing an example of the receiving plate, FIG. 4 is a partially cut sectional view of IV-IV in FIG. 3, and FIGS. [Fig. 4] is a configuration explanatory view of a conventional example, respectively. A: Canned beverage, 20: High frequency induction heating coil, 21 ...
Support plate, 22 ... Rotating device, 23 ... Support arm, 24 ... Cam device, 29 ... Ejection port

Claims (2)

(57) [Claims] 1. A canned beverage contained in a vending machine is received upright one by one in a high frequency induction heating coil vertically provided in the vending machine, and is placed below the high frequency induction heating coil. In a heating / discharging method of placing and supporting on a surface of a canned receiving plate that is being heated, and heating the canned beverage to a predetermined temperature in the supported state, and discharging the heated canned beverage from the inside of the high-frequency induction heating coil. While the canned beverage is being heated, the canned receiving plate is rotated to rotate the canned beverage about its axis, and then the canned receiving plate is placed below the high frequency induction heating coil. From the inside of the high-frequency induction heating coil by its own weight to discharge the heated canned beverage by moving it laterally outward from the inside of the coil. 2. The beverage cans contained in the vending machine are received upright one by one in a high-frequency induction heating coil vertically provided in the vending machine, and arranged below the high-frequency induction heating coil. Is placed on the supporting surface of the canned plate, and the high frequency induction heating coil is energized to heat the canned beverage to a predetermined temperature in the supported state, and the heated canned beverage is heated to the high frequency induction heating coil. A heating and discharging device for discharging from inside, which is installed vertically and receives a can of beverages one by one in an upright state from above, and closes the lower side of the high frequency induction heating coil close to the lower surface of the coil. And a can receiving plate on which a can of beverage that is received is placed on a support surface, and a can that is heated to a predetermined temperature by energizing a high frequency induction heating coil while the can of beverage is placed. A rotator capable of rotating the stuffing plate on its central axis and the can stuffing plate and the rotator are arranged at one end side, and an intermediate portion is supported by a vertical support shaft so that the canning plate can be swung laterally. The supporting arm and the other end of the supporting arm are connected to each other, and the can receiving plate is reciprocally oscillated from the lower position of the high frequency induction heating coil to the outer side position in the lateral direction to A heating / discharging device in a vending machine, which is provided with a cam device for closing the door.