JPS6014730B2 - Elliptical vibrating multi-stage bowl feeder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an elliptical vibration type bowl feeder that is improved so that bowls can be stacked in multiple stages.

By applying vertical vibration and circular vibration to one bowl independently, and adjusting the magnitude and phase of these amplitudes as necessary, a composite vibration (elliptic vibration) is applied to the bowl.
For example, an elliptical vibrating bowl feeder that changes the aspect of the bowl to obtain a conveyance state suitable for the parts Z in the bowl and also changes the conveyance direction is disclosed in Japanese Patent Publication No. 44-728.
Provided by 9.

However, in the conventional elliptical vibrating bowl feeder, the bowl is directly supported on the base by two sets of leaf springs, one for vertical vibration and one for circular vibration. The comb is stiffer and the bowl on top is taller, raising the center of gravity of the bowl feeder. Furthermore, the bowl causes a complex elliptical vibration due to vertical vibration and circular vibration, and this vibration is propagated to the base supporting the bowl. This worsens the installation stability. Therefore, in the conventional elliptical vibrating bowl feeder, it is not possible to stack bowls in multiple tiers, which further deteriorates the installation stability, and the limit is that one bowl can be made into two tiers (upper and lower), and one bowl feeder The advantages of the multi-stage bowl feeder, which allows various parts to be transported from the machine to each machine, cannot be utilized. The present invention aims to eliminate the above-mentioned drawbacks by attaching a large number of leaf springs radially to a holder, independently supporting a pair of bowls at each outer end, and applying circular vibration between the bowls in opposite phases. A vibrating section is provided to form one bowl unit, and two support tubes are supported by springs on the base so that they can move vertically in the vertical direction, and a vertical vibrating member is provided. A novel elliptical vibration type multi-stage bowl feeder is constructed by adhering the bowl units at arbitrary stages to the supporting cylinder. Now, the advantages of the multi-stage bowl feeder can be demonstrated by allowing the bowl units to be stacked in multiple stages as desired, and the vibration propagation to the base is canceled out by each bowl unit and between the upper and lower support tubes, making it possible to stack the bowl units in multiple stages. Nevertheless, we have succeeded in providing an elliptical vibrating multi-stage bowl feeder that does not deteriorate the installation stability. Next, the present invention will be explained with reference to embodiments shown in the drawings.

In the vibration model of the first embodiment, as shown in FIG. B and B are European-mounted, and each bowl is elliptically vibrated by the vertical vibration of the support cylinder and its own circular vibration. The elliptical vibration type multi-stage bowl feeder BF of the first embodiment will be described in detail below with reference to FIGS. 2 and 3. 1
is a base (bed) placed on the floor 2, and a tall support column 3 is erected at the center of the top surface of this base.

Reference numeral 4 denotes a support cylinder which covers the support column 3 and is freely aligned with the support column.The support tube 4 is supported by a coil spring 5 interposed between the flange 4a and the base 1 at its lower end. A suitable space S is left between the upper end of the pillar 3 and the upper end 4c of the holding cylinder 4.

Reference numeral 6 denotes two or three support holes screwed to the center of the support column 3, which protrude outward from long holes 4b, 4b formed in the support tube so as not to impede the vertical movement of the support tube 4; An annular seat 6a is attached to each tip.

Reference numeral 7 denotes an outer support tube, which is slidably mated with the support bar 4, and a flange 7a at the lower end is supported by a coil spring 8 placed on the catch seats 6a, 6a so as to cover the upper half of the tube. ing.

That is, this is the same relationship as that in which the support tube 7 is supported by the coil spring 8 interposed between the support tube 7 and the base 1. In the above mounting relationship, there is an appropriate gap x between the upper end 4c of the inner support cylinder 4 and the crown body 9 that closes the upper end of the outer support cylinder 7 by screwing. is being made. And M
olo' is an excitation member that vibrates the two support cylinders 4 and 7 in the vertical direction in opposite phases, and the electromagnet Mo housed in the gap x is attached to the bottom of the crown body 9 and connected to the lead wire. 1 is pulled out from the window hole 7b, and the suction iron piece 10 is attached to the upper end 4c of the support tube 4. The same number of bowl units U .

That is, the detailed configuration of the bowl unit U is as follows. The outer periphery of the holding body 11 is hexahedral, and on each surface 11a there are plate springs 13 of 3 pieces long and 3 pieces short (total 6 pieces)...
・, 13′...... alternately tighten the bolts 14.
...Screw it on and install it radially so that it can be manipulated in the circumferential direction. Then, the bottom part 15a of the large diameter bowl 15 is fixed to the outer ends of the three long leaf spring turtles 3 by the support Mantomi 6, while the three short leaf springs 13'...・At the outer end of the small-diameter bowl gun, attach the bottom end turtle 7a to the support 18.
It is fixed by .... With this, there are two bowls 5, and each plate pane turtle 3 is attached for installation inside and outside.
, 13', . . . are independently supported in a pair to form one bowl B. The upright walls 15b, 17b of each bowl 15, 17 have parts tracks 15c and 1
7c is provided. The above two bowls 15, 17
As shown in Fig. 3, there is a bottom part 1 of the small diameter bowl 17 between
Two electromagnets M are attached to the space 1a, and a suction iron piece 19 opposing them is attached to the bottom 15a of the bowl 15 on the Oyo side. Thus, a pair of bowls 15
, 17 are configured to be circularly vibrated in opposite phases by an electromagnet M serving as a vibrating member and an attracting iron piece 19. still,
The rigidity of the leaf springs 13..., 13'... is the same as that of the bowls 15, 1.
Of course, appropriate values should be selected so that the vibrations of 7 are balanced. The vibration model of the second embodiment is the fourth
As shown in the figure, two support cylinders 40 and 70 are supported by the husband part 21 and the base part 1 with springs 5 and 8 for vertical vibration, and these support cylinder bases 0,701 and bowls B and B are shipped to Europe. Each bowl is vibrated elliptically by the vertical vibration of the support cylinder and its own circular vibration.

Below, the elliptical vibrating multi-stage bowl feeder BF' of the second embodiment
is explained in detail in Fig. 5. A relatively short support column 3 is erected at the center of the upper surface of the base 1, and an upper support column 3' vertically opposed to this is a column 20 that stands as a shield on the right end of the base 1. The arm 21 is attached to the tip side of an arm 21 that is swingably provided at the top of the arm 21. Then, the two holding cylinders 40 and 7 are slidably fitted to each support column 3 and 3' to face each other, and the lower holding cylinder 4 and the flange 40a are interposed between them and the base 1. The upper holding cylinder 70
Is it the flange part? It is suspended by a coil spring 8 interposed between the oa and the arm 21 so that it can move up and down. When the holding cylinders 40 and 70 face each other, an appropriate gap is left between them, and within this gap, vibration is applied to vibrate the upper and lower holding cylinders 40 and the slides in the vertical direction in opposite phases. An electromagnet Mo and an attraction iron piece 10 are attached as members. Each of the upper and lower support tubes 40 configured as described above,
The same number of bowl units U are attached to the bowl unit 0 in the same manner as in the first embodiment. The elliptical vibrating multi-stage bowl feeder BF (BF') of the present invention is constructed as described above and operates as follows.

First, the installation of the bowl unit U to each of the supporting joints, turtles 0, 7, and 7Q is carried out in the following steps.In the first embodiment, as shown in FIG.
, with the coil spring 8, crown body 9, etc. removed, fit an arbitrary number (two in the figure) of bowl units U into the inner (lower) support tube 4, and support the holder 11 with the setscrews 12. Attach it to tube 4. Then, attach the support village 6, coil 'coil 8, and support tube 7 in this order, fit the same number (2) of bowl units as the inner bowl units U to this outer (upper) support tube 7, and tighten the set screws 12. Let them wear it. After that, the cap 9 with the electromagnet Mo attached to the bottom is placed over the top of the support tube 7, and bolted so that an appropriate gap is left between the electromagnet Mo and the suction iron piece 10. With the above operations, the installation of the bowl unit U to the support tubes 4 and 7 is completed, and the bowl unit U
The removal from the support tubes 4, 7 is now carried out in the reverse order to the above. Incidentally, the electromagnet Mo can be easily made larger in accordance with the increase in the number of bowl units Z. On the other hand, in the second embodiment, as shown in FIG.
, 7Q. Under this condition, each support cylinder 40
, 701 2 bowl units U of the same number (two in the illustration)
and attach the holder 11 to the support tube 40 using the setscrew 12.
, 701 troops arrive. After this, the arm 21 is rotated again to the solid line position, and the upper support tube 78 is moved to the lower support tube 4.
When the arm is in a coaxial relationship with 0, the arm is fixed immovably. With the above operations, the attachment of the bowl unit U to the support tubes 40, 70 is completed, and the support tubes 40, 70 of the bowl unit U are completed.
Removal from 70 can now be carried out in the reverse order of the above. Therefore, in any of the embodiments, the bowl unit U has excellent replaceability, and the bowl unit can be attached and detached with simple work. Next, when the electromagnet Mo for vertical vibration is excited in order to rotate the bowl units U stacked in multiple stages as shown in FIGS. 40, 7, and 70 are excited in the vertical direction with opposite phases.

Now, although each bowl unit U causes vertical vibration in a single stroke, the vibration phases of the upper and lower bowl units U can be reversed and their inertia masses are equal, so their vibration energies cancel each other out. "Almost no vertical vibration is transmitted to the base 1. When the electromagnet M provided in each bowl unit U is excited in a phase leading or lagging relationship with respect to the vibration phase of the electromagnet ground, the pair of bowls 15
, 17 cause circular vibrations due to the opposite phase relationship, and also generate elliptical vibrations due to combination with vertical vibrations. This elliptical vibration occurs when the circular vibration has a leading phase with respect to the vertical vibration.
When viewed from the top of 717, the driving force causes the parts to rotate counterclockwise, for example, and conversely, if the circular vibration is delayed in phase with respect to the vertical vibration, the driving force causes the parts to rotate clockwise. Therefore, the electromagnet M provided in each bowl unit U
By simply electrically adjusting the vibration phase of the part, the feeding speed and direction of the parts can be changed freely. That is, two parts can be placed in one bowl B, such that the parts (not shown) in each bowl B can be delivered from track 17c of inner bowl 17 and track 15c of outer bowl 15, for example. It is possible to provide an exit. Moreover, in each bowl unit U, since the two bowls 15 and 17 vibrate circularly in an opposite phase relationship, the vibration energies cancel each other out at the holder 11, and the support tubes 4, 40,
7. Almost no vibration is transmitted to the support pillars 3 and 3'. Therefore, in the elliptical vibrating multi-stage bowl feeder BF (BF') of the present invention, the support cylinders 4, 40, 7
, 70 and the circular vibration of the bowl unit U cancel each other out separately. As a result, the vibration of the base 1 that deteriorates the stability is suppressed, and the installation stability of the bowl feeder is improved. ing. The elliptical vibrating multi-stage bowl feeder of the present invention is not limited to the above two embodiments, and may be modified within the spirit of the invention. For example, as shown in FIG. 6, two bowls 15' and 15' are attached to the holder 11 in a vertical relationship. That is, leaf spring turtles 3 of the same length are arranged radially at two locations above and below the holding body 11,
Annular bowls 15' and tortoises 7' of the same size may be supported at each outer end of this leaf spring, and a bowl unit U' may be constructed in which an electromagnet M serving as a vibrating member and an attracting iron piece 19 are provided between the bowls. . Furthermore, as shown in FIG. 7, in order to omit the support cylinders 4, 40, 7, 70 used in each of the above embodiments, the holder base 1 of each vertically stacked bowl unit U is attached to a bolt 59. Connected with ... to form an integral cylindrical body gIQ,
This may be used as a support cylinder and directly iron-coupled to the support columns 3, 3'. Furthermore, in the second embodiment, two or three columns 20 are erected on the base 1, and the arms 21 suspending the upper bowl unit U are removably fixed to the top ends of each column 20. 48? 7, 0
The coil springs 5 and 8, which are supported so as to be able to vibrate up and down, may have a plate-like structure. According to the present invention, a pair of bowls are supported by radial leaf springs, and a bowl unit is placed on a base that faces vertically and vibrates vertically in an opposite phase relationship. Since any number of bowl units can be detachably attached to the two support nodes, not only can a large number of bowl units be stacked, but also the work of attaching and detaching the bowl units can be done easily.

Moreover, since each bowl unit and the upper and lower support cylinders are excited in an opposite phase relationship, there is almost no vibration transmitted to the base ~ Oval vibration type multi-stage bowl feeder with good installation stability despite multi-stage stacking Z can be provided. Since each bowl unit vibrates independently in a circular motion and is equipped with a pair of bowls, it has many advantages such as the ability to freely control the feeding speed and feeding direction of the parts housed in each bowl unit. The effect is demonstrated.

[Brief Description of the Drawings] The drawings show each embodiment of the present invention. Fig. 1 is a vibration model diagram of the first embodiment, Fig. 2 is a front sectional view showing the first embodiment, and Fig. 3 is a vibration model diagram of the first embodiment. 2 is a sectional view taken along line A-A in Figure 2, Figure 4 is a vibration model diagram of the second embodiment, Figure 5 is a front sectional view showing the second embodiment, and Figure 6 is a front sectional view showing a modification of the bowl unit. FIG. 7 is a partial sectional view showing a modified example of the support cylinder. 1... Base t 3...Support pillar, turtle, 40, 7, 7Q...
...4 support tubes, 11...support body, 13, 13'...
...Board 15, 15r, 17, 17'...Bowl, U? U'... Bowl unit, 10, 19...
Attraction iron piece t association, M...Electromagnet. Figure 1 Figure 2 Figure 4 Figure 3 Figure 5 Figure 6 Figure 7

Claims (1)

[Claims] 1. A bowl unit in which a pair of bowls are supported by radial leaf springs and are made to vibrate circularly in an antiphase relationship is placed between two bowl units on a base that vertically face each other and vibrate up and down in an antiphase relationship. An elliptical vibrating multi-stage bowl feeder characterized in that an arbitrary number of stages can be detachably fitted into a support tube.