JPS62134786A - Goods dispensor for vending machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a product dispensing device, particularly a flapper dispensing type product dispensing device.

2. Description of the Related Art Conventionally, a product dispensing device for this mountain pass has been constructed as shown in FIGS. 4 to 8. Figure 4 (a longitudinal cross-sectional view of the product dispensing device, 1.2 is the first and second cradle supported by shafts 3 and 4, respectively, and both pedestals 1.2 are rotated downward. is regulated by a single cam plate 5. The cam plate 5 has a semicircular shape and is fixed to the tip of a camshaft 6 so that it can rotate horizontally. The products in the first column, from top to bottom, are 11, [2.1
Label it as 3... 8 is the second column of products stacked on the second pedestal 2; similarly, ■1, I [2, II
Label it as 3... Reference numerals 9 and 10 denote first and second stoppers, which are connected to the cam body 11 fixed to the camshaft 6.
The second product from the bottom of the first and second columns is pressed against the stocker wall surface 12 side, thereby supporting the second and higher stacked products.

Reference numeral 13 denotes a product takeout port provided in the moe Ijr 14 of the automatic vending machine. 15 is a daple located below the first and second columns, the tip of which extends to the vicinity of the product takeout port 13. 16 is a bar conveyor on which bars 17 are attached at appropriate intervals, and the bars 17 in the path are used to push the products 7.8 that have fallen onto the table 15 toward the product takeout port 13 (in the direction of the arrow claw). It has passed over 15.

The rotation of the camshaft 6 is driven by a motor [not shown 1].
and a stop cam attached to the camshaft 6 [not shown 1
The stop cam is controlled as follows by a cam switch (not shown) that detects the state of the stop cam. Note that products 7 and 8 in the first and second columns 21 and 22 are the same product, and each time a payout instruction is detected, products 7 and 8 in the first column 21 and 22 are
The following description assumes that the product is paid out from the first or second column 22.

FIG. 6 shows the states of the first and second pedestals 1 and 2 and the cam plate 5 during the process of dispensing work 1 at the first detection of a dispensing instruction and the process of dispensing ■1 at the second detection of the dispensing instruction.

The sixth time shows the initial state of FIGS. 4 and 5.

When the first dispensing instruction is detected, the cam plate 5 rotates 90 degrees clockwise as shown in FIG. 6, and the first pedestal 1 and the cam plate 5 are disengaged from each other. Incidentally, at the time when the cam plate 1 rotates 90° and the first pedestal 1 rotates downward, the second product 2 is preliminarily moved by the cam body 11 as shown in FIG. The stocker wall 12 is pressed against it, and when the first pedestal 1 rotates downward, only the product 11 falls. The product 11 that has fallen onto the table 15 is sent on the table 15 in the direction of the arrow claw by the bar conveyor 16 which has started normal rotation and is delivered to a position facing the product take-out port 13, and the drive of the bar conveyor 16 is completed.

When the dispensing of the product 11 is completed in this way, the cam plate 5 further rotates 90 degrees as shown in FIG. The pressing of the product I2 by the cam body 11 is released together with F-rotation. When the second dispensing instruction is detected, the cam plate 5 rotates 90° as shown in the sixth instruction from FIG.
Product ■1 is disengaged from table 1 as shown in Figure 8.
5 and bar conveyor 1 in the same way as product 11.
It is paid out at 6 and returns to the initial state for the 6th time.

Problems to be Solved by the Invention In such a conventional configuration, as shown in FIG. If it is sufficiently wide, no problem will occur, but if the length c3Lz of the second pedestal 2 becomes longer due to the expansion of the size and weight of the product 8, or if the length of the second pedestal 2 becomes longer, 7°-pull 15 for height 8 limit of sales n body
When the bar conveyor 16 is forced to be placed close to the main body of the switchboard, the interval L1 is
When the product 8 becomes narrower than the size of the product 8, as indicated by 11' in the figure, depending on how the product 8 falls, it is pushed up by the bar 17 of the bar conveyor 16, which rotates in the normal direction, and the second pedestal 2 and table are opened. There is a possibility that the product 8 gets caught between the bar conveyor 16 and the bar conveyor 16, which prevents the bar conveyor 16 from moving in the direction of the arrow claw, making it impossible to dispense the product. This is a serious problem that occurs particularly for the products 8 in the second column, which is on the upper side with respect to the conveyance direction [arrow claw direction] of the bar conveyor 16, among the first and second columns. The current situation is that it has to be sufficiently large for product 8.

The present invention aims to provide a product dispensing device for a self-help vending machine that can self-recover from an abnormal state and perform normal dispensing even if the interval L1 is set close to the size of the product, even if a product is caught. Purposeful.

Means for Solving the Problems The product dispensing device for a self-help vending machine of the present invention controls the rotation of the first and second pedestals, one end of which is pivotally supported so as to be able to rotate downward. It is supported and regulated by a semi-circular middle cam plate which is pivoted to horizontally rotate at the lower position of the second pedestal, and the cam plate is rotated by a predetermined angle to separate the first and second pedestals. The contact between one side and the cam plate is released and the product in the first or second column stored on the pedestal is delivered, and the delivered product is moved between the first column and the second column by a conveyor that rotates normally. and an abnormality detection means for detecting an abnormality in dispensing the products, and when the abnormality detection means detects an abnormality, the conveyor is reversed and then rotated in the normal direction. The present invention is characterized by providing a recovery means.

According to this configuration, when a product is caught, the bar conveyor is reversed and the bar on the lower side takes out the lower part of the product that is being caught [in the direction away from I and places it on the table]. After the jamming condition is avoided in this way, the bar conveyor rotates normally again, so that the product can be reliably delivered to the product outlet.

EXAMPLE Hereinafter, an example of the Kikomei will be described with reference to FIGS. 1 to 3. Components having the same functions as those in FIG. 4 are designated by the same reference numerals and their explanations will be omitted. The spacing is set to 1', which is the same as in FIG. 9 where there is a risk of jamming.

Reference numeral 18 denotes an overcurrent detection section, which is connected in series to the power supply circuit of the DC motor 19 that drives the bar conveyor 16. 20
is a dispensing control section, which is brought into conduction for a specified time by a dispensing instruction J generated in conjunction with the drive of the camshaft 6 during normal dispensing. Reference numeral 21 denotes a polarity switching unit, which applies a polarity voltage to the motor 19 that causes the product 7.8 on the table 15 to rotate in the normal direction and to be transported in the six directions of the arrows during normal dispensing. Reference numeral 22 denotes a recovery control section which inputs the overcurrent detection signal K from the overcurrent detection section 18 and instructs the payout section 20 and the polarity switching section 21 to perform recovery processing.

FIG. 2 does not show a flowchart of the payout control section 20.

In other words, when an unloading instruction J occurs during normal dispensing, (a-2) is turned ON via (a-1),
Further, a power supply voltage Vec having a polarity in the forward rotation direction is applied to the motor 19 via the polarity switching unit 21 . In (a-3), the internal counter CNTt is incremented, and (a-4)
Next, check whether the content has reached the count faW1 corresponding to the specified time, and repeat steps (a-2) → (a-3) → (a-4) until a match is detected at (a-4). The bar conveyor 16 is rotated in the normal direction by repeatedly executing the routine, and the product 7 or 8 on the table 15 is delivered to the product takeout port 13. When a match is detected in (a-4), the power to the motor 19 is turned off and the bar conveyor 16 is stopped in (a-5).

FIG. 3 shows a flowchart of the recovery control 122.

In other words, while the payout control unit 20 is performing the normal payout, the second
As shown by the solid line between the cradle 2 and the table 15, the product ■
1 is caught and an overcurrent flows through the motor 19.
In the recovery control unit 22, (via b-13 (b-2)
Increment the internal counter CNT2 with (b
-3), the content is the count 11 corresponding to the predetermined U clear weather period.
It is checked whether iIN2 has been reached, and if a match is detected in (b-3), it is determined that the biting has occurred and (b
-4) Execute the reversal process. In (b-4), first, the current supply being executed in the payout control unit 20 is turned off, and the polarity 1
i77! ! Instructs the unit 21 to change the polarity, and instructs the payout control unit 20 to energize for a predetermined time t1. As a result, the bar 1 that is being bitten is on the lower side with respect to the product ■1 that is being bitten by the bar conveyor 16, which is operated in reverse.
The lower part is swept away by 7a, and the biting is completed once R as shown by the imaginary line, and it falls onto the 1-pull 15. When the energization for the predetermined time t1 ends, then in (b-5) the polarity switching unit 2
At the same time, the contents of the counter CNT2 and the counter 0NT1 of the payout control section 20 are reset. (b-6) Instructs the dispensing control unit 20 to carry out
Output a signal corresponding to (a-2) → (a-3) → (
By normal rotation of the bar conveyor 16 according to the routine a-4), the bar 17b delivers the product 1 to the product take-out port 13.

In the above embodiment, the overcurrent detection section 18 is used as an abnormality detection means.
A recovery control section 22 and a polarity switching section 2 are provided as recovery means.
1 is provided, however, the same effect can be achieved even if the abnormality detection means is configured as follows. In other words, the photoelectric device 23 is installed so that the detection light crosses the tip of the 7-pull 15 as shown by the imaginary line in FIG. A timer is set, and when this timer detects the elapse of a certain period of time, it is considered an abnormal state, and normally the photoelectric device @ 2
The timer is reset by the product detection in step 3.

Effects of the Invention As explained above, the present invention provides a product dispensing device using a flapper dispensing method for dispensing products to a dispensing port using a conveyor. A recovery means is provided to rotate the conveyor in the forward direction after reversing the conveyor, so even if a product gets caught between the lower end of the open pedestal and the table that receives the product that has fallen from the stocker body, it can be automatically removed. Since the product can be restored to normal condition and the product can be dispensed, actual operation can be performed even if the distance between the lower end of the opened pedestal and the table is not so large compared to the size of the product.

[Brief explanation of drawings]

Fig. 1 is a longitudinal cross-sectional view of an embodiment of Kikomei and its essential electric circuit configuration, Figs. 2 and 3 are flowcharts of the main parts of Fig. 1, and Fig. 4 is a diagram of a conventional product dispensing device. 5 is a view taken along the line X-X in FIG. 4, FIG. 6 is an explanatory diagram of the operation of a conventional product dispensing device, and a view taken along Y-Y in FIG. 4, and FIGS. FIG. 8 is an explanatory diagram of FIG. 6, and FIG. 9 is an explanatory diagram of product biting. DESCRIPTION OF SYMBOLS 1... First pedestal, 2... Second pedestal, 5... Cam plate, 6... Camshaft, 9, 10... First and second stopper, 11... ...Cam body, 13...Product outlet, 15...Table, 16...Bar conveyor,
17... Bar, 18... Overcurrent detection section, 19...
Motor, 20... Dispensing system 611 part, 21... Polarity switching unit, 22... Recovery control unit, L1'... Distance agent between table 15 and the tip of pedestal 2 released [JD] Morimoto Zanhiro Figure 6 (Kon 5 (1)) Figure 7 Figure δ

Claims (1)

[Claims] 1. The first and second parts are pivoted at one end so as to be pivotable downward.
The rotation of the cradle is supported and regulated by a single semicircular cam plate that is pivoted to horizontally rotate at a position below the first and second cradle, and the cam plate is held at a predetermined position. The angle is rotated to release the contact between one of the first and second pedestals and the cam plate, and the product in the first or second column stored on the pedestal is dispensed, and the delivered product is corrected. The product is configured to be transported to the product takeout port along the arrangement direction of the first column and the second column by a rotating conveyor, and includes an abnormality detection means for detecting an abnormality in the delivery of the product, and an abnormality detection means. A product dispensing device for a vending machine, comprising a recovery means for reversing the conveyor and then operating the conveyor in the forward direction when an abnormality is detected.