JPS6245596B2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Industrial Application Field The present invention provides a method for discharging one product from a product storage path provided in the main body by a predetermined discharging operation of a product discharging device driven by an electric motor. This invention relates to a product discharge control device for vending machines.

(b) Prior art This type of device includes, for example,
The configuration shown in Publication No. 101575 is known, in which stockers with stacked and stored products are arranged on the outside of the rotating shaft, and a drive device is provided to rotate the rotating shaft by a predetermined amount every time a delivery signal is given. In this method, a gate for receiving the product at the bottom of the stocker and an upper support plate for receiving the next product at the bottom are fixed, a notch is provided in the gate to allow the product at the bottom to fall, and the rotation of the rotating shaft allows the product to fall from the notch to the top. It is configured so that the products on the lower tier are dropped and discharged, and the next product is received by the upper support plate at the time of discharge.

(C) Problems to be Solved by the Invention In the conventional technology having such a configuration, the product is dropped and discharged from the notch of the gate while the gate is rotating due to the rotation of the rotating shaft, so the product does not fall from the notch. If there was a delay, the product would not be able to fall completely while the gate was rotating, and the product would get caught in the gate, causing deformation and clogging.

In view of the above, the present invention provides a product discharging device that can reliably drop and discharge the product even if the product is delayed in falling at the product drop/discharge position, and does not cause deformation or clogging of the product. .

(d) Means for Solving the Problems In order to solve the above problems, the present invention vertically installs a shaft in the column that is rotated by an electric motor at a predetermined rate for each sale. In a vending machine, the vending machine is provided with a product storage passage in which products can be stacked and stored, and a control member is provided at the bottom of the product storage passage, which is operated by a predetermined rotation of a shaft rod by the electric motor to drop and discharge the lowest order product. , comprising a detection means that operates when the control member is in a falling and ejecting state of the product due to rotation of the shaft rod by the electric motor, and a control means that stops the electric motor for a predetermined period of time and restarts the electric motor based on the operation of the detection means. The configuration is as follows.

(E) Function When the electric motor rotates the shaft based on the sales signal, the control member drops and discharges the lowest product in the product storage aisle. When the shaft rod is rotated to a position where the product is dropped and discharged by the control member, the detection means is activated. In response to the operation of the detection means, the control means stops the electric motor for a predetermined period of time, giving sufficient time for the control member to drop and eject the product, and then the control means drives the electric motor again to move the shaft rod to a predetermined standby position. Rotate to

(f) Examples Each figure shows an embodiment of the invention.

Reference numeral 1 denotes a column having a substantially U-shaped cross section, having an opening 2 for loading products on the front side and a discharge port 3 for products at the lower end, and is installed vertically within the main body of the vending machine. Further, a support member 4 is fixed to the lower end of the column 1 in the front-rear direction so as to divide the column 1 into left and right halves, and a bearing 5 is provided at the center of the support member 4. 6 is a product discharge device having an electric motor 7;
A shaft rod 8 whose upper end is connected to an electric motor 7 provided at the top of the column 1 and whose lower end is rotatably supported by the bearing 5; A product storage passage 10 is formed on both sides of the shaft 8 and has a distance E between the column 1 and the side wall of the column 1 so that the products A can be stacked and stored. Further, a stepped portion 11 is provided at the bottom of the column 1.
, so that a product storage passage 12 having a wider interval than the interval E is formed.
The control member 9 includes an upper control surface 13 that is formed continuously with the upper control surface 13, and an upper control surface 13 that rotatably advances downward from the lowest product to place and support the next product. A lower control surface 14 which takes over and places the products placed on the surface 13 and which drops and discharges the products placed on the surface 13 has a step D smaller than the thickness B of the product A. It is formed to extend approximately 180 degrees on one side of the shaft rod 8, and at the tip of the upper control surface 13 in the rotation direction, it is formed to extend to the other side of the shaft rod 8, and is formed to extend to the other side of the lowermost product. A pressing portion 15 for pressing the side portion is provided. And the upper surface of the pressing part 15 and the upper control surface 13
The interval between the product A and the stepped portion 11 is formed to be smaller than the thickness B of the product A, so that the product placed and supported on the upper control surface 13 has its upper part interposed in the product storage passage 10, and its lower part. The interval between the control surface 14 and the step part 11 is formed to be larger than the thickness B of the product A, and the product placed and supported on the lower control surface 14 is located in the product storage passage 12 below the step part 11. It is configured as follows. Then, as shown in Fig. 3, the electric motor 7
The distance F between the pressing portion 15 and the side wall of the column 1, which is formed when the shaft rod 8 is rotated by 90 degrees, is made larger than the width C of the product A. That is, the product discharging device 6 includes an electric motor 7 and
It consists of a shaft 8 connected to the shaft 8 and a control member 9 provided at the bottom of the shaft 8, and one selling operation is performed every time the shaft 8 and the control member 9 are rotated 180 degrees by the drive of the electric motor 7. . Therefore, shaft 8
The products in the product storage passages 10 on both sides of the product are alternately discharged every time the control member 9 rotates 180 degrees. Reference numeral 16 denotes a cam provided on the upper part of the shaft rod 8, which operates a detection switch 17 as a detection means provided opposite to the cam 16 every time the shaft rod 8 rotates 90 degrees. As will be described later, the detection switch 17 is configured to stop the switch 7 each time it is operated by the cam 16.

Next, the electric control circuit of the device of the present invention will be explained with reference to FIG. Note that in this example, the first and second rows
Assume that there are two product discharge devices by column.

The CM is a two-price setting type money sorting and counting device, and when a predetermined number of coins or more are inserted, a power supply L1 is output from terminals a and b as a sales signal. RV is a bend relay that controls switching between switch RV-1 and switch RV-2, and is provided with a delay circuit.
R1 and R2 are selection relays, respectively. The selection relay R1 in the first row controls switches R1-1, R1-2, and R1-3, and the selection relay R2 in the second row controls switches R2-
1, switch R2-2, and switch R2-3. The bend relay RV has one end connected to the terminal a of the money sorting and counting device CM through a diode D1 and the terminal b through a diode D2, and the other end connected to the normally closed switch R2-3 and the switch R1-3. Power supply L2 through each contact
It is connected to the. RR is a reset relay connected between the DC power supply through the normally closed contacts in series of the detection switch 17-1 as the detection switch 17 and the detection switch 17-2 in the sales standby state. and switch RR-2. RM is Switch RM-1 and Switch RM
A motor relay that switches and controls -2. M1 and M2 are the electric motors 7 described above, M1 is in the first row and M2 is in the first row.
is the second row electric motor. RS is a switch
A stop relay that switches and controls RS-1, which connects capacitor C2, selection relay R2, and switch RR.
A delay circuit is provided which is connected between the DC power sources through the normally closed contacts -2 in series and is made up of a capacitor C3. RB connects the AC power supplies L1 and L through the normally open contacts of switch RR-1 and the normally closed contacts of switches R1-2 and R2-2, respectively.
With the brake relay connected between 2, switch RB
-1 is switched and controlled. The selection relay R1 has one end connected to the terminal a of the money sorting and counting device CM, and the other end connected to the power supply L via the diode D9, selection switch SS-1, switch RM-1, and switch RV-2.
Connected to 2. The selection relay R2 has one end connected to the terminal a of the money sorting and counting device CM, and the other end connected to the diode D10, the selection switch SS-2,
It is connected to the power supply L2 via switch RM-1 and switch RV-2.

Next, the operation of the above configuration will be explained. When more than a predetermined number of coins are inserted into the coin sorting and counting device CM, a sales signal is output from terminals a and b, energizing the bend relay RV and opening the switch RV-1.
Switch RV-2 closes. Then, for example, the selection switch SS-1 in the first column is operated,
When temporarily closed, selection relay R1 is energized by a half-wave by diode D9, and switch R1-1, switch R1-2, and switch R1-3 are each closed to a normally open contact. Therefore selection relay R1
are power supply L1, switch RR-1, switch R1-
2. Selection relay R1, switch R1-3, power supply L
The second circuit is closed to form a self-holding circuit.
By energizing this selection relay R1, power supply L1, switch RR-1, switch R1-2, switch R2
-2, the circuit of brake relay RB and power supply L2 is opened, brake relay RB is demagnetized, and switch RB
-1 is developed. Further, the bend relay RV is de-energized by opening the switch R1-3, but is energized for a certain period of time by the delay circuit. After this delay time, when bend relay RV is demagnetized, switch RV-1 is closed and switch RV-2 is opened. Therefore, switch RV-1, switch R1-1, electric motor M1, and switch RS- are connected between the DC power sources.
1 closed circuit, switch RV-1, switch R1
-1, diode D25, and motor relay RM form a closed circuit, electric motor M1 is energized, switch RM-1 is opened, and switch RM-1 is opened.
RM-2 closes to a normally open contact. This switch
By closing the normally open contact of RM-2, a sales start signal is sent to the money sorting and counting device CM, and the money sorting and counting device CM stops outputting the sales signal from terminals a and b, and outputs the sales signal to terminal a. A selection signal is delivered.

On the other hand, when the electric motor M1 is energized, that is, when the electric motor 7 in FIG. 1 is in a sales standby state, the shaft rod 8 begins to rotate counterclockwise in FIG. 2. By this rotation of the shaft 8, the pressing portion 15 first comes into contact with the side surface of the lowest product A1, presses the product A1 outward, and rotates the product A3 downwardly. Accordingly, the product A1 that has been pushed outward is released from the lower control surface 14, released from its support, and dropped to be discharged. At this time, the detection switch 17 is operated by the cam 16, that is, the detection switch 17-1 is closed to a normally open contact. By closing the normally open contact of detection switch 17-1, the energizing circuit to reset relay RR is opened, reset relay RR is demagnetized, and switch RR is
-1 is open and switch RR-2 is closed as a normally closed contact. Therefore, the self-holding circuit of selection relay R1 is opened, selection relay R1 is demagnetized, and switch R
1-1, switch R1-2, and switch R1-3 each return to normally closed contact and close. On the other hand, by closing the normally closed contact of switch RR-2, capacitor C2, selection relay R2, and switch are connected between the DC power supply.
A closed circuit of RR-2 and stop relay RS is formed to energize stop relay RS and capacitor C3 for a certain period of time, and stop relay RS closes switch RS-1 to a normally open contact during this energization time and a delay time due to capacitor C3. By closing the normally open contact of the switch RS-1, a brake circuit for the electric motor M1 is formed through the detection switch 17-2, the detection switch 17-1, the electric motor M1, and the switch RS-1 in series. . The excitation time of the stop relay RS is set to a predetermined time sufficient for the product released from the support from the lower control surface 14 to be ejected and dropped downward. Therefore, the current supply circuit to the electric motor M1 is opened, and the electric motor M1 stops. That is, the electric motor 7 is stopped for a predetermined period of time. Further, at this time, the product A3 next to the product A1 is placed and supported on the pressing portion 15, so that double sales are prevented. When the electric motor 7 is stopped, the shaft rod 8 is rotated approximately 90 degrees.
and FIG.

When the stop relay RS is demagnetized after a predetermined period of time, that is, after the delay time caused by the capacitor C3, the switch RS-1 is closed as a normally closed contact. This closure causes a detection switch 17-2 to be activated between the DC power sources.
Normally closed contact of , normally open contact of detection switch 17-1,
A closed circuit is formed via the normally closed contacts of the electric motor M1 and the switch RS-1, and the electric motor M1 is energized again. That is, the electric motor 7 operates again to further rotate the shaft rod 8. This rotation causes the upper control surface 1 to
3 rotates to the lower part of the product A3 to securely place and support the product A3, and the lower control surface 1 to which the product A2, which was placed and supported on the upper control surface 13, rotates and advances.
When the cam 1 is securely placed and supported on the cam 1 and reaches a state where it has rotated approximately 180 degrees from the sales standby state, the cam 1
6, the operation of the detection switch 17 is canceled.
That is, the detection switch 17-1 closes to a normally closed contact. By this closing, the energizing circuit of the electric motor M1 is opened, and a energizing circuit of the reset relay RR is formed between the DC power supply through the normally closed contacts of the detection switch 17-2 and the detection switch 17-1, and the switch is activated. RR-1 closes and switch RR-2 closes to a normally open contact. Therefore, electric motor M1 is de-energized, and power source L1 and switch RR
-1, when switch RB-1 is closed by the closed circuit of switch R1-2, switch R2-2, brake relay RB, and power supply L2, the electric motor is connected in series through switch RB-1, diode D25, and electric motor M1. The brake circuit M1 is formed to stop the electric motor M1, and the loop circuit of the capacitor C2, selection relay R2, and switch RR-2 returns the capacitor C2 to its initial state. That is, the electric motor 7 is stopped, one sales operation is completed, and a sales standby state is entered.

The next selling operation is performed in the same manner as the above operation, and the shaft rod 8 is rotated approximately 180 degrees to reach the state shown in FIGS. 1 and 2, and the selling operation is completed.

(g) Effects of the Invention As described above, the present invention temporarily stops the product ejecting operation of the product ejecting device at the ejecting operation position where the locked product is released from the lock, and allows the product to fall and be ejected. The product is designed to allow enough time for the product to fall and to be ejected reliably, so even if the product falls a little slower due to items sticking together, for example, the product can be ejected reliably. This can prevent product deformation and clogging.

[Brief explanation of the drawing]

Each of the drawings shows an embodiment of the present invention; FIG. 1 is a partially sectional front view of the product discharge control device in a standby state, and FIG. 2 is a product discharge control device in the same state as FIG. 1. 3 is a partially sectional front view of the device when it is temporarily stopped; FIG. 4 is a sectional plan view in the same state as FIG. 3; and FIG. 5 is an electrical control circuit diagram with power applied. It is. 6...Product discharge device, 7...Electric motor, 1
0, 12... Product storage passage, 17... Detection switch (detection means).

Claims (1)

[Claims] 1. A shaft that is rotated by an electric motor at a predetermined rate for each sale is installed vertically in the column, and a product storage passageway in which products can be stacked and stored is formed on both sides of the shaft, and the electric motor is installed at the bottom of this product storage passageway. In the vending machine, the vending machine is provided with a control member that is operated by a predetermined rotation of a shaft rod to drop and discharge the lowest product, and the control member operates when the control member is brought into a state of dropping and discharging the product by rotation of the shaft rod by the electric motor. 1. A product discharge control device for a vending machine, comprising: a detection means for detecting the detection means; and a control means for stopping an electric motor for a predetermined period of time and driving it again based on the operation of the detection means.