JP3156460B2 - Vending machine product unloading device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a merchandise unloading device for a vending machine, and more particularly to a merchandise unloading device capable of simultaneously unloading two products.

[0002]

2. Description of the Related Art Various motors used in a product unloading apparatus for unloading goods and limit switches (herein referred to as self-propelled switches) provided for detecting unloading operations driven by these motors are arranged in a matrix. And the on / off state of the motor drive and the free-running switch is detected through these matrix circuits. With such a matrix circuit configuration, the number of wirings can be significantly reduced.

[0003]

By the way, there is a case where a specific sales period is provided for selling a new product or the like, and a prize is provided when the product is sold during that period. In this case, in order to shorten the sales time, it is preferable to carry out the prize at the same time as selling the product.

However, in the circuit of the matrix system, two take-out motors cannot be driven at the same time due to the configuration of the circuit. Therefore, conventionally, the prize take-out motor is driven after the product is taken out by driving the product take-out motor. The prize must be driven out and the sales time is prolonged.

In order to carry out the product and the prize at the same time, it is necessary to provide a dedicated rack for the product and the prize or to control the respective drive motors separately from the matrix circuit. In such a case, a new product rack and its carrying-out equipment are required, and when the prize is not carried out, those equipments are not used, so that the merchandise accommodation efficiency is lowered.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problem, and has no need to provide a dedicated facility for simultaneous unloading, and a product unloading apparatus capable of simultaneous unloading with a slight change in circuit design. The purpose is to provide.

[0007]

SUMMARY OF THE INVENTION The present invention comprises a motor for unloading a plurality of articles incorporated in a matrix circuit (I) for unloading a plurality of articles, and a driving means for driving the unloading motor. Then, in order to detect a carry-out operation by driving the commodity carry-out motor, a self-propelled switch incorporated in a matrix circuit (II) provided corresponding to the matrix circuit (I) and an on / off state of the self-propelled switch are detected. In the merchandise unloading device of a vending machine provided with a switch reading means, when simultaneous sale is set by the simultaneous unloading setting switch and the simultaneous unloading setting switch that are set so as to simultaneously unload the product Z when selling the product A, When the product A is sold, the product unloading motor for the product Z is disconnected from the matrix circuit (I) and connected to the driving power source, and the motor is connected to the motor. Circuit disconnecting means for disconnecting the corresponding self-propelled switch from the matrix circuit (II) and connecting to the switch reading means.

[0008]

According to the above construction, when it is desired to simultaneously carry out the product Z when selling the product A, the carry-out motor for the product A is driven through the matrix circuit, while the carry-out motor for the product Z is disconnected from the matrix circuit and directly connected to the power source. , The selling operation of the product Z can be performed in parallel with the selling operation of the product A. Then, whether the unloading operation has normally functioned can be determined by reading the state of the self-propelled switch cut off from the matrix circuit (II) by the on / off state reading means in the same manner.

[0009]

FIG. 1 is an electric circuit diagram showing one embodiment of a carry-out motor drive circuit in a product carry-out device of the present invention. 1
Is the power transistor that reads the motor drive / self-running switch for the lines in the column direction of the matrix circuits I and II.
(Source side). Reference numeral 2 denotes a motor drive power transistor (sink side) for a line in the row direction of the matrix circuit I, and reference numeral 3 denotes a self-running switch power transistor for reading the on / off state of the self-running switch for the line in the row direction of the matrix circuit II. . The matrix circuit I includes a product carrying motor M provided in each product rack.
Is connected to the matrix circuit II, and a self-propelled switch SW that switches from ON to OFF to ON in the process of driving the product unloading motor M to unload the product is provided for each product unloading motor M. Can be

[0010] However, 'motor shown is, as shown in FIG. 2, the relay contact xb _1' M, xb ₁ "via is connected to the matrix circuit I (b contacts both), contact xa ₁ ' ,
24V line and ground G via xa ₁ ″ (both a contacts)
ND. D is a diode for absorbing a back electromotive force. The self-propelled switch S corresponding to the motor M '
W ′ is a relay contact xb ₂ ′, xb ₂ ″ as shown in FIG.
(Both contacts a) and connected to the matrix circuit I, and via contacts xa ₂ ′ and xa ₂ ″ (both contacts a)
The V line is connected to one port of the self-running switch read power transistor 3.

Reference numeral 4 denotes a CP for overall control of the product unloading device.
U, a drive signal of the product unloading motor M is supplied to the motor drive / self-running switch read power transistor 1 and the motor drive power transistor 2, and thereafter,
The on / off state of the self-running switch SW is fetched from the self-running switch reading power transistor 3. X ₁ is a relay of the relay contacts xb ₁ ′, xb ₁ ″ and xa ₁ ′, xa ₁ ″
A (article carrying-out motor dissection relay), X _2, the relay contact xb ₂ ', xb ₂ "and xa _2', xa _2" is a relay (self switch disconnecting relay) of. Reference numeral 5 denotes a simultaneous unloading switch. When there is a sales request when this switch is turned on, the relays X ₁ and X ₂ are excited, and the commodity unloading motor M ′ and the self-propelled switch SW ′ are connected to the matrix circuits I and II.
Disconnected from

Hereinafter, the operation of the present apparatus will be described with reference to the time chart of FIG. When a product sales command is issued, the line of the product unloading motor M corresponding to the product to be sold is activated (+24 V) from the motor drive / self-running switch read power transistor (source side) 1 and at the same time the motor drive power transistor is activated. When the line of the product unloading motor M is activated (0 V), the product unloading motor M is driven, and the product unloading operation is started.
With the start of this operation, the self-propelled switch SW corresponding to the product unloading motor M is switched from ON to ON.

When the unloading operation is completed at time T2, the self-propelled switch SW 'for detecting the unloading operation is switched from ON to OFF. By inactivating both the lines that have been activated by the self-running switch read power transistor 1 and the motor drive power transistor 2, the drive of the product unloading motor M is stopped, thereby ending the product unloading operation. The above is the control when only the product is sold with the simultaneous unloading switch 5 turned off (in that case, the sold product can be stored in the product rack corresponding to the product unloading motor M ').

When the prize is unloaded at the time of selling the product (the simultaneous unloading switch 5 is turned on and the prize is stored in the product rack corresponding to the product unloading motor M '), the sales of the product are conventionally performed. Although it has to be performed later, that is, after time T2, in the present invention, the following operation is possible by disconnecting the product (prize) unloading motor M 'and its free-running switch SW' from the matrix circuit. I have to.

[0015] At time T3 (this point may be the same period and the time point T1), the self switch SW disconnecting relay X ₂ is turned on by this, the self switch SW 'is disconnected from the matrix circuit also by the product (prize) unloading motor disconnecting relay X ₁ is turned on,
The prize unloading motor M 'is driven, and the prize unloading operation is started.

At the start of unloading, the self-propelled switch SW 'for detecting the unloading operation is switched from off to on. When the unloading operation is completed at time T4, the self-propelled switch SW' is turned off from on. Switch. This allows
Is the free-running switch disconnect relay X ₂ and the article carrying-out disconnect relay X ₁ is off, 'By is connected to the matrix circuit I, the article conveying motor M' article conveying motor M is stopped, which in prize out Is completed.

[0017]

As described above, according to the present invention, the motor for unloading the prize and the self-propelled switch thereof can be driven separately from the matrix circuit, so that the motor can be driven at the same timing as the product unloading motor connected to the matrix circuit. Driving becomes possible, and goods and prizes can be carried out at the same time, and sales time can be reduced.

[Brief description of the drawings]

FIG. 1 is an electric circuit diagram showing one embodiment of a discharge motor drive circuit in a product discharge device of the present invention.

FIG. 2 is a circuit diagram of a product unloading motor applied to FIG.

FIG. 3 is a circuit diagram of the self-propelled switch applied to FIG. 1;

FIG. 4 is a time chart showing a control operation of the circuit diagram of FIG. 1;

[Explanation of symbols]

DESCRIPTION OF REFERENCE NUMERALS 1 Motor drive / self-running switch read power transistor 2 Motor drive power transistor 3 Self-running switch read power transistor 4 CPU 5 Simultaneous unloading switch M Product unloading motor SW Self-running switch X ₁ Product unloading motor disconnecting relay X ₂ Self-propelling switch disconnecting relay

Claims (1)

(57) [Claims] 1. A product discharging motor incorporated in a matrix circuit (I) and a driving unit for driving the product discharging motor for discharging a plurality of products, and driving the product discharging motor. In order to detect the unloading operation by the self-propelled switch, a self-propelled switch incorporated in the matrix circuit (II) provided corresponding to the matrix circuit (I) and a switch reading means for detecting the on / off state of the self-propelled switch are provided. In the merchandise unloading device of the vending machine, a simultaneous unloading setting switch that sets so that the merchandise Z is also simultaneously unloaded when the merchandise A is sold; The product unloading motor for Z is disconnected from the matrix circuit (I) and connected to the drive power source, and the self-propelled switch corresponding to the motor is And a circuit disconnecting means for disconnecting from the tricks circuit (II) and connecting to the switch reading means.