JPS636656Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an automatic quantitative dispensing device for continuously distributing and storing powder, granules, fruits, etc. in predetermined weights into containers.

An object of the present invention is to provide an automatic fixed-quantity dispensing device that can move and measure a container according to the amount of stored material to be supplied into the container.

Another object of the present invention is to provide an automatic fixed-quantity dispensing device that can evenly supply and measure the contents into a container without biasing the contents.

Still another object of the present invention is to provide an automatic quantitative dispensing device that has a simple structure and can perform accurate metering and dispensing.

Still another object of the present invention is to provide an automatic quantitative dispensing device that allows easy adjustment of measured values.

Next, the present invention will be explained in more detail according to an embodiment shown in the drawings.

Reference numeral 1 denotes a base chassis having a general cross-sectional shape (see FIG. 2), which is tilted and fixed by arbitrary immovable members G ₁ and G ₂ .

Reference numeral 2 denotes a guide frame for guiding a container, which is tilted and fixed to the upper surface of the base chassis 1, and is a substantially L-shaped member 2.
By arranging a and 2b to face each other left and right, an opening 3 is formed in the longitudinal direction of the center of the frame bottom 21.
Of course, the base chassis 1 and the guide frame 2 may be integrally molded. Thus, the container Y is provided so as to slide down on the frame bottom 21 of the guide frame 2 from above to below by its own weight. Reference numeral 4 designates two guide rails serving as guide members, which are installed and fixed in the longitudinal direction of the base chassis 1 in parallel with the frame bottom 21 of the guide frame 2. 5 is the guide rail 4
This is a container holding device that is supported and placed on the container and is movable in a reciprocating manner. 51a to 51d are four running rollers, which are rotatably supported by shafts 53a and 53b fixed to the main frame 52 of approximately cross-sectional shape of the container holding device 5, and are placed on the guide rails 4 and 4. ing. Auxiliary rollers 54a to 54d are rotatably supported by shafts 55a and 55b fixed to the main frame 52, and are located directly below the guide rails 4, 4 to support the running rollers 53a to 53.
d from falling off the rail. Therefore, the auxiliary roller shall be installed as necessary. 56 is the upper end of the main frame 52 and the base chassis 1
This is a measuring coil spring interposed between the upper end plate 1a and the upper end plate 1a, and in the illustrated embodiment, it is fixed via a long screw 561 and the tension is adjustable with a nut 562. Furthermore, an engagement mechanism 57 is provided at the front end of the main frame 52. The main members of this engagement mechanism 57 consist of an upper engagement piece 571 and a lower engagement piece 572, which are rotatably supported on shaft pins 573 and 574 fixed to the main frame 52, respectively, and one end of each They are provided so as to engage and lock each other. 571a and 572a are lock portions connected to the engaging portions of the respective engaging pieces 571 and 572, each having an arcuate sliding surface. 575 and 576 are torsion springs wound and fixed around the shaft pins 573 and 574, respectively, which bias the engagement piece 571 clockwise and 572 counterclockwise in FIG. 1, respectively. Thus, the engagement piece 571 is connected to the upper front edge 5 of the main frame.
21 and the engagement piece 572 comes into contact with the lower end front edge 522 of the main frame and is prevented from rotating, so the engagement mechanism 57 is normally in a locked state in the positional relationship shown in FIG. At this time, the upper end 571b of the upper engagement piece 571 protrudes upward from the opening 3 of the frame bottom 21 of the guide frame, contacts the front wall of the container _Y1 , and holds it so that it does not slide down. Reference numeral 571c denotes a contact roller, which is provided as necessary to reduce the frictional resistance of the upper end portion 571b of the engaging piece.
On the other hand, although the entire holding device 5 is under the tensile force of the metering coil spring 56, a portion thereof, for example, the shaft pin 55a, collides with the upper stopper 60 and is prevented from moving.

The fruits 8, 8, etc., which are carried by the conveyor belt 7 or other transport mechanism, are placed in the container from above.
When the container continues to fall into Y ₁ and the amount inside the container increases, the container holding device 5 is moved by the spring 56 due to the load.
It is pushed down against the pressure and moves downward on the rail 4. Therefore, the supplies such as the fruits 8 fall sequentially from the front to the rear of the container _Y1 , and are evenly stored in the container Y1. When the container holding device 5 moves to the chain line position in FIG. 1, the front end 572b of the lower engagement piece 572 comes into contact with the lower stopper 61. Reference numeral 572c denotes a contact roller, which is provided as necessary to reduce the frictional resistance of the front end 572b of the engaging piece. Since this lower stopper 61 is a slope, if the holding device 5 continues to advance, the front end 572b will be pushed up and the lower engaging piece 572 will be pushed up.
is rotated clockwise as shown in FIG. Therefore, the engagement lock with the upper engagement piece 571 is released, and the upper engagement piece 571 is rotated in the direction of the arrow from the position indicated by the chain line against the spring 575 under the pressure load of the container _Y1 . Its upper end 571b
evades downward from container Y ₁ and the holding state is lost.
At the point where both engaging pieces 571 and 572 are unlocked, the holding device 5 is removed from the container.
Coil spring 56
By setting the above, when a predetermined amount of fruits, etc. are stored in the container, the container _Y1 is released from the holding device 5 and sent out. After the container Y ₁ is delivered, both engaging pieces 571 and 572 are connected to springs 575 and 576.
The elastic force causes the container to return to its original position and enter the locked engagement state, and the entire holding device 5 is also pulled back by the metering coil spring 56 and returns to the solid line position in Figure 1 to hold the subsequent container _Y2 . Something,
Thereafter, the above operation is repeated continuously as long as the articles are supplied into the containers, and a fixed amount can be automatically distributed and supplied to each container Y ₁ , Y ₂ . . . _Yo .

Thus, the reciprocating distance of the holding device 5 must correspond to the length of the opening of the container, which is made possible by adjusting the positions of the upper stopper 60 and the lower stopper 61. As this adjustment method,
In the embodiment, the long hole 1 provided in the bottom plate of the base chassis 1
Each stopper 60, 61 can be slid along the lines b, 1c, and the bolt/nut 60a, 6 can be inserted at any position.
Although it is assumed that the stoppers 1a are tightened and fixed, it is of course possible to use other structures in which the positions can be adjusted by moving each stopper in parallel. By adjusting the stopper position, the tension of the coil spring 56 can be adjusted irrespective of changes in the moving distance of the holding device 5 to dispense the desired amount.

[Brief explanation of the drawing]

Fig. 1 is a central longitudinal cross-sectional view of the quantitative automatic dispensing device according to the present invention, Fig. 2 is a cross-sectional view taken along line AA, and Fig. 3 is a cross-sectional view taken along line B-
B sectional view and FIG. 4 are partially omitted longitudinal sectional views showing the operation of the engagement mechanism. DESCRIPTION OF SYMBOLS 1... Base chassis, 2... Guide frame, 4... Guide rail, 5... Container holding device, 56... Measuring coil spring, 60, 61... Upper and lower stoppers, _Y1 ... Container.

Claims (1)

[Claims for Utility Model Registration] 1. A guide frame for guiding containers fixed to a base at an angle, a guide member fixed to the base parallel to the guide frame, and a guide frame supported by the guide member. a reciprocating container holding device; a measuring coil spring interposed between the container holding device and a base;
It consists of an upper stopper and a lower stopper that regulate the moving distance of the container holding device, and when quantitative measurement is performed, the container holding device collides with the lower stopper, the engagement mechanism in the container holding device is released, and the container is removed. The automatic fixed-quantity dispensing device is provided so that the engaging mechanism returns after the container is delivered and the container holding device is moved back to the upper stopper by the coil spring to hold the subsequent container. 2. The automatic fixed-quantity dispensing device according to claim 1, wherein the container holding device is disposed below the guide frame, and the upper end of the engagement mechanism is provided so as to be movable into and out of the guide frame. 3. The automatic quantitative dispensing device according to claim 1, wherein the guide member is a rail, and the container holding device is placed on the rail so as to be able to reciprocate. 4. The first registered claim, wherein the tension of the metering coil spring is adjustable.
Quantitative automatic dispensing device as described in section. 5. The automatic fixed-quantity dispensing device according to claim 1, wherein the mounting position of the stopper is adjustable.