JPS6057631B2 - Product dispensing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a dispensing device for dispensing a large number of products stored in a product stocker one by one from a dispensing opening at the bottom of the stocker.

Various dispensing devices of this type have been devised in the past. For example, in the device described in Japanese Utility Model Application Publication No. 54-67695, an electromagnet is used to move a horizontal drive shaft up and down, and two control gates in contact with the drive shaft, that is, a stopper, are placed in the product discharge path. When the drive shaft is lowered, the lower control gate advances, and the upper control gate retracts, and when the drive shaft is raised by the dispensing signal,
The lower control gate retracts, the upper control gate protrudes, the lowest product is dispensed, and the next product is stopped, thereby dispensing the products one by one. The above-mentioned drive shaft moves up and down along a vertical hole provided in the machine box, and the product discharge path is vertical, so that most of the weight of the product acts on the upper and lower control gates, or stoppers.

For this reason, the upper and lower control gates are placed close to each other, and these control gates are strongly pressed against the drive shaft.Moreover, since the drive shaft is located in a long hole, there are many sliding parts, and the resistance during elevation is considerable. There is a risk that it will become large.

Further, when the lower control gate starts to retract, the upper control gate starts to protrude, so there is a risk that the product to be dispensed will be pushed by the upper control gate, making dispensing uncertain. Furthermore, if the product discharge path is not vertical, there is a risk that the operation will be uncertain. Also, special public service Sho 45-3409
The device described in Publication No. 6 uses an electromagnet to swing the rear stopper via a link, and the front stopper returns to its original position with a spring and is knocked down by the product. When engaged and disengaged and the roller is engaged with the stepped portion, the front stopper stands up to prevent the product from being dispensed.

In such a structure, the resistance when engaging and disengaging the step part of the front stopper and the roller is quite large, and therefore the roller must be attached to the rear stopper, which increases the number of parts and increases the mounting shaft of the roller. Department work takes a lot of effort,
There are problems such as an increased risk of failure. In view of these problems, the present invention is designed to make the front stopper and rear stopper come and go at a certain timing by simply moving one link back and forth, thereby reliably dispensing one product, without using rollers. The details are as follows.

In the figure, B is a product stocker, and in the illustrated example, two rows of meandering storage sections 2 are formed by four rows of guide rails 1 formed by connecting arcuate frames, and both sides of this storage section 2 are It is covered with a side plate 3.

Further, the lower end of each storage section 2 forms a diagonally downward dispensing port 4, and both sides of each dispensing port 4 form parallel guide plates 5, 6. The dispensing device A of the present invention is provided on the guide plate 6, and will be explained with the guide plate 6 side facing upward.

7 is a machine box; 8 is a horizontal shaft fixed in the machine box 7; the rear end of a front stopper 9 is pivotally attached to this horizontal shaft.

The tip of the front stopper 9 is bent into an inverted V-shape, and this portion can freely extend and retract from the opening of the guide plate 6 toward the dispensing port 4. Reference numeral 10 denotes a rear stopper, the front end of which is pivoted to the same horizontal shaft 8 so as to be able to swing independently from the front stopper 9, and the rear end of the rear stopper 10 is also bent in an inverted shape so that it can be removed from the opening. You can appear freely towards exit 4.

A horizontal shaft 11 is fixed near the front lower part of the machine box 7, and this horizontal shaft 11
The lower end of the front lever 12 is pivotally connected to.

The front lever 12 is frame-shaped and has its upper end in contact with the lower side of the front stopper 9. Further, a horizontal stop shaft 13 is fixed to the front part of the machine box 7, and when the front lever 12 is in contact with this stop shaft 13, the front stopper 9 is pushed out and the front stopper 9 moves from the opening into the dispensing port 4. Make it stand out. 14
is a link, and a horizontal shaft 16 fixed to an intermediate portion of the front lever 12 is loosely fitted into an elongated hole 15 in the front-rear direction at the front end of the link.

A horizontal shaft 18 fixed to the lower part of a pair of left and right rear levers 17 formed by bending both front pieces of the rear stopper 10 downward and an elliptical hole 19 which is long in the front-rear direction near the rear of the link 14 are connected to each other. Let it fit. Further, a spring 2 is provided between the protruding piece on the upper side of the rear end of the link 14 and the stop shaft 13 to pull the link 14 forward.
A movable core 22 of an electromagnet 21 fixed at the rear of the machine box 7 is connected to the rear end of the link, and when the electromagnet 21 is excited, the core 22 retreats and the link 14 retreats,
When the electromagnet 21 is demagnetized, the link 14 is moved forward by the spring 20, and the iron core 22 is also moved forward. In addition, numeral 23 in the figure is a sold-out detection piece, which is pivotally mounted inside the machine box 7 by a horizontal shaft 24, projects to the rear of the payout port 4 by a spring 25, and activates a limit switch 26 inside the machine box 7 to issue a sold-out signal. .

The dispensing device A of the present invention has the above-described structure, and is installed so that the machine box 7 is on the outside as shown in FIG. 1, and the front part, that is, the left side in FIGS. 2 and 3, is on the diagonally downward side.

When installed in this manner, when cylindrical products 27 such as canned juice are placed sideways one after another through the upper opening of each storage section, the product 27 at the front end protrudes from the guide plate 6. They stop when they hit the stopper 9, and are thereby successively piled up. At this time, in the internal mechanism, the front lever 12 touches the stop shaft 13 to support the lower side of the front stopper 9, as shown in FIG. In addition, the weight of the product 27 is applied to the front stopper 9 and acts as a force to rotate it downward around the shaft 8. Since the angle between the straight line connecting the center of the front stopper 9 and the straight line connecting the contact point and the horizontal axis 11 is an acute angle, the pressing force of the front stopper 9 becomes a force that presses the lever 12 against the stop shaft 13, and the front stopper 9 does not fall, and at this time the link 14 and the iron core are in the forward position, the horizontal shaft 16 of the front lever 12 hits the rear end of the elongated hole 15 of the link 14, and the rear lever 17 is attached to the front end of the oval hole 19 at the rear of the link 14. After the lower end of the shaft 18 hits the stopper 10 is retracted. Now, when the payout signal is issued, the electromagnet 21 is excited, the iron core 22 moves back, and the link 14 connected thereto also moves back against the spring 20.

For this reason, the horizontal axis 18 which is in contact with the front end of the oval hole 19 first
At the same time, the rear lever 17 rotates rearward, and the rear stopper 10 integrated therewith projects onto the guide plate 6 to move the second product 2.
7 is prevented from being paid out. In this way, until the rear stopper 10 protrudes, the elongated hole 15 at the front of the link 14
is only moving along the horizontal axis 16 and the front lever 12 does not move, so the front stopper 9 remains protruding and no dispensing is performed, but after the rear stopper 10 protrudes, the iron core 22 and link 14 further retreat. Then, the link 14 moves backward while the horizontal shaft 16 contacts the front end of the elongated hole 15, and the front lever 12 is tilted backward. For this reason, the front stopper 9 is unsupported, and the front stopper 9 is pushed in by the load of the product 27 applied to the front stopper 9 and pulled into the machine box 7, so the front lever 12 is moved forward as shown in FIG. It hits the rear end of the elongated hole 15 of the link 14 which has been pushed further backward by the stopper 9 and has completely retreated. As described above, after the front stopper 9 is lowered and the frontmost product 27 is dispensed, the electromagnet 21 is demagnetized, and when the link 14 and the iron core 22 move forward due to the spring 20, they first contact the rear end of the elongated hole 15. When the horizontal shaft 16 is pushed and the lever 12 turns forward, its upper end pushes up the front stopper 9 and the front stopper 9 projects onto the guide plate 6, the rear end of the oval hole 19 hits the horizontal shaft 18, so that the rear end of the oval hole 19 hits the horizontal shaft 18. The lever 17 rotates forward, and the rear stopper 10 integrated therewith rotates downward and is retracted from the guide plate 6. Therefore, the product 27 that was stopped by the rear stopper 10 rolls forward together with the following product 27 and is stopped by the front stopper 9, resulting in the state shown in FIG. 2. As described above, the present invention dispenses the products lined up in a row one by one using the front stopper and the rear stopper that alternately appear and retract from the guide frame provided at the product dispensing port.In the case of the present invention, the front stopper The rear part of the machine and the front part of the rear stopper are connected by a horizontal axis, and the front stopper protrudes into the payout port when supported by the front lever, and when the rear stopper protrudes and the front lever is no longer supported, it retracts into the machine box. ,
In addition, the front lever that raises and lowers the front stopper and the rear lever that raises and lowers the rear lever are connected to the link with some play between the shaft and the elongated hole or oval hole, so the distance between the front stopper and the rear stopper is reduced. The diameter of one product can be sufficiently taken, and when dispensing a product, the rear stopper protrudes into the dispensing opening and then the front stopper retracts into the machine box, so that one product can be reliably dispensed. After the front stopper protrudes into the dispensing port, the rear stopper retracts into the machine box, so that subsequent products are reliably advanced.

In addition, although the front stopper and the upper end of the front link are in sliding contact, all other movable parts are rotary joints with low resistance, so each part operates smoothly and the required amount during dispensing. Only a small driving force is required, and since there is no part that uses its own weight, it has the advantage of being able to be mounted in any direction.

[Brief explanation of the drawing]

Figure 1 is a side view with one side wall removed of a product stocker to which the device of the present invention is attached, Figures 2 and 3 are enlarged longitudinal sectional side views of the device of the present invention in various states, and Figure 4 is an enlarged plan view of the same. figure,
FIG. 5 is an exploded perspective view of the main parts. A: Dispensing device, B: Product stocker, 4: Dispensing port, 5, 6: Guide plate, 7: Machine box, 8, 11, 16, 18...
...Horizontal axis, 9...Front stopper, 10?0I-
I rear stopper, 1200001 front lever, 13...
... Stop shaft, 14 ... Link, 15 ... Long hole, 17 ... Rear lever, 19 ... Oval hole, 20 ... Spring , 21... Electromagnet, 22
・・・・・・Movable iron core.

Claims (1)

[Claims] 1. A dispensing port consisting of parallel guide plates is provided at the bottom of the product stocker for sliding the products in the stocker in a line, and the front part of the front stopper pivoted in the machine box on the back side of one of the guide plates is attached to the guide plate. so as to be able to freely appear and retract from the opening into the dispensing opening to prevent dispensing of the product at the forefront when protruding;
Similarly, in a product dispensing device in which the rear part of the stopper is pivotably mounted inside the machine box and the rear part of the stopper is freely retractable into the dispensing port through the opening of the guide plate, and when the stopper is protruded, dispensing of the second product is prevented, the lower end is pivotally mounted inside the machine box. When the front lever rotates forward, it pushes out the front part of the front stopper into the dispensing opening, and when it rotates backward, it contacts the inside of the front stopper so that the front stopper is retracted from the dispensing opening. The front part of the link is connected to the middle part of the lever with a slight play in the front and back direction, and the lower part of the rear lever is connected to the rear part of the link, and the lower part of the rear lever is projected downward from the front part of the rear stopper. By connecting with a slight play in the direction, after the front stopper or rear stopper protrudes into the payout port, the rear stopper or front stopper retracts into the machine box, and the spring and electromagnet move the link back and forth. Product dispensing device installed inside the machine box.