JPS6030609B2 - Multiple bowl feeder device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an electromagnetic vibrating bowl feeder, in which upper and lower tables each having a bowl hopper on a base are supported independently by each plate so as to prevent the vibration of the electromagnet from being transmitted to the base. A new multi-bowl feeder is created by stacking bowl hoppers with different outer diameters in a conical shape on upper and lower tables.

Conventional electromagnetic vibration bowl feeders have several leaf springs installed on the base, and a bowl hopper with an integrated table is supported on the top of the bowl feeder. The bowl hopper is rotated and vibrated by the suction vibration generated between the suction iron pieces, and the parts in the bowl are fed to an external machine through a chute.

For this reason, the base is vibrated in the same way as the bowl hopper, and although rubber feet can be placed over the bottom of the base, vibration transmission to the floor cannot be avoided. The force causes the base (the entire bowl feeder) to gradually vibrate and rotate, and if the rubber feet are sufficiently softened, the bowl hopper oscillates back and forth and from side to side, impairing the stability of the bowl feeder. This is because parts are supplied from the bowl feeder to the external machine through a chute that bridges the two, so the joint between the bowl hopper's delivery port and the chute's receiving port does not match correctly, and this joint This has the disadvantage of causing parts to get caught, making it impossible to supply parts to an external machine. Furthermore, since the above-mentioned bowl feeder normally has only one bowl hopper, it is impossible to feed many different parts with one bowl feeder as in a factory that produces a wide variety of products in small quantities. This method has the drawback of requiring a large number of bowl feeders, which occupies a large amount of production equipment and a large installation area. The present invention solves the above-mentioned drawbacks of the conventional bowl feeder by independently supporting an upper table and a lower table each having a bowl hopper at each end of several leaf springs planted on a base. By installing an excitation electromagnet and its suction iron piece between these, the vibration directions of the upper and lower tables are in opposite phases, canceling out the vibration reaction forces on the base. Since vibration can be greatly reduced, stability can be achieved by fixing the base of the bowl feeder directly to the floor, smoothing the supply of parts from the bowl hopper to the chute, and further balancing the inertial mass of the upper and lower tables. By connecting a chute to each hopper in a multi-bowl hopper configuration in which a large number of bowl hoppers whose outer diameters gradually become smaller from the bottom side are stacked in a conical shape, each bowl hopper can be processed in one bowl feeder without destroying the structure. In addition to being able to supply different types of parts from the bowl hopper, it is also possible to replenish parts to each bowl hopper and monitor parts inside the hopper without being obstructed by the upper hopper. It was machined into a bowl feeder with high assembly accuracy.

Next, a multi-bowl feeder device according to the present invention will be explained with reference to embodiments shown in the drawings.

FIG. 1 is a perspective view showing the external appearance of the multiple bowl feeder BF of the present invention, in which each bowl hopper B, B2...B? are stacked in a conical shape with appropriate vertical spacing, and trucks T, ~T with cylindrical protrusions inside each bowl hopper.
The starting end Sa of each chute S, which is installed on the stationary floor (not shown), is connected to the terminal end Ta of 7 (the 4th wing, 4th wing).
(Fig.) is also configured to connect various parts P by interfacing with an external machine (not shown). Next, the internal structure of the multiple bowl feeder BF is as shown in Figs. The long legs and four short legs are arranged alternately in eight equal parts. IQa...- and the vine ob are leaf springs,
The lower green ends of the tall leg pieces la and the short leg pieces lb are screwed to the right-inclined seats 1'a... and 1'b with bolts la..., respectively. Each of the leaf springs is planted along the circumferential direction in a right-handed posture of about 60o to 80o in a forested state.
... is higher than the leaf spring 10b. 12 is a disc-shaped upper table whose outer diameter is smaller than that of base 1. On the circumference of this lower run, which is divided into four equal parts, there is a leaf spring 10.
Four mounting pieces 12a that are equal to the right pocket angle of a...
This is screwed onto the top end of leaf spring 10a with bolts 11,b, and supports the upper table.

As shown in Fig. 4, 13 is a lower table with the part facing it cut out to avoid the four upper leaf springs IDa, so that it has an irregular cross shape. Four mounting pieces 133... river are installed on the upper table and the top end of the leaf spring 10b to make it equal to the rightward inclination angle of the leaf spring 10b... river. 1 1b and supports the lower table directly below the upper table 12.

1-2b... are four collar plates suspended from the lower surface of the upper table 12 and arranged radially, the lower ends of which are opposed along one side edge of the cross tip 13c of the lower table turtle 3, and Four tsuba plates 13 with a shield standing on the edge opposite the tip of the cross
b... and is facing each other at a predetermined interval.

Ma to Md are electromagnets excited by a commercial AC power source, and two electromagnets NL and Mc are located on the flange plate 1 at the front and rear of the lower table so that the weight of the upper and lower tables 12 and 13 is balanced.
3b, and other electromagnets Mb and N are attached to the inner surface of the collar plate turtle 2b located on the left and right sides of the upper table. The suction iron pieces 14a to 14d corresponding to the electromagnets Ma to Nhl are respectively attached to the flange plate 12b on the anti-electromagnet side.
, 13b, and both (Ma to Md and 14a to 14
Between d), a gap g sufficient to vibrate the upper and lower tables is aligned on orthogonal center lines a and b. With this, when the suction iron pieces 14a to i4d are attracted to the electromagnets Ma to Md against the leaf springs 10a and lob, the upper table 12 moves counterclockwise, and the lower table 13 moves clockwise in an opposite phase relationship. Next, details of each bowl hopper B, ~B and upper and lower tables 1 are constructed.
The attachment relationship with 2 and 13 is as shown in FIG.

2 cylindrical walls 20a, 20 with large diameter, medium diameter, and small diameter in the form of steps.
It is a cylindrical body with stepped portions b and 20c, and a bowl hopper B in the shape of a mortar with a spiral feed path 20d on the inner circumferential wall is integrally attached to the top edge of the cylinder, and a green stepped flange 20' is provided at the bottom of each cylindrical wall. a, 20' are 20'c, each bowl hopper B6 is machined into an annular shape with different outer diameters, and the inner rings are ironed together with appropriate vertical spacing, and screws 21...
It is fixed in place. This four-tiered bowl hopper group Ba
The lower inner circumference of the stepped flange 20'b is placed on the outer circumference of the upper surface of the upper table 12, and the bottom surface 20e of the bowl hopper mB in the uppermost stage is placed in the center of the table, and the table is fixed by appropriate means such as bolts. is fixed to. 30', similar to the cylindrical body 20 described above, cylindrical walls 30 of large diameter, medium diameter, and small diameter.
The cylindrical body of the lower table 13 has the cylindrical parts a, 30b, and 30c arranged in stages, and the small diameter cylindrical wall 30c of the uppermost stage is connected to the upper cylindrical body 20.
The projecting flange 30d installed on the side of the inside of the machine at this time was placed on the lower table 13, for example, the four cross tips 13c... by appropriate means such as bolts. Fixed to the lower table.

and stepped flanges 30'a, 30'b at the lower edge of each cylindrical wall.
, 30'c, each of the bowl hoppers B to B3, which are machined into annular shapes with different outer diameters, are joined at their inner rings with appropriate vertical intervals and fixed with screws 22... is,
A three-stage bowl hover group Ba is configured. As described above, a seven-tier multi-bowl hopper & (B, ~B) stacked in a conical shape is formed, and the upper and lower bowl hoppers B ~ &
By adjusting the weights of (Ba) and B4 to B(Ba), the inertial masses of the upper and lower tafles 12 and 13 are equally balanced. One embodiment of the present invention is constructed as described above and operates as follows.

Seven different types of parts P... are placed in each bowl hopper B, ~B7, and when a commercial AC voltage is directly or half-wave rectified and released to each electromagnet NL~Nh',
The suction iron pieces 14a to 14d mirror the plate springs 10a from the electromagnets Ma to Md (electromagnets are the suction iron pieces) in a direction that further deepens the rightward tilt, and also makes the plate springs 10b... stand upright. The suction power is 120 (100
) HZ or repeatedly at a cycle of 60 (50) HZ. As a result, the upper and lower tables 12 and 13 are excited with a composite vibration of rotational repulsion vibration and vertical vibration in opposite phases, and this composite vibration is transmitted to each bowl hoverer B, -B.
Therefore, the parts P in each bowl hopper are each leaf spring 10a.
......, 10b... is in a right-leaning posture, so
While being transported clockwise, each track T,~T7-
The parts are sorted in a row and continue to gradually ascend toward the chutes S, - S7, and are smoothly discharged to each external machine without any parts getting caught at the joints with the chute. That is, the base 1 that supports the upper and lower tables 12 and 13 receives composite vibrations of opposite phases from the tables having approximately the same inertial mass, and these composite vibrations cancel each other out, so that the vibration of the base 1 is reduced. will be drastically reduced to zero. This stabilizes the base 1 by directly fixing it to the floor, and mechanically connects the terminal end Ta of the bowl hopper and the starting ends Sa of the chutes S, to S7 to facilitate parts supply. Since the base 1 is not vibrated, there is no vibration transmission to the floor, and there is no need to take anti-vibration measures for the base or floor, and the vibration energy of the electromagnet is maximized (efficiently). 13, the upper and lower tables are driven by small electromagnets. Furthermore, while the multi-bowl feeder BF is in operation, the amount of parts remaining in each bowl hopper B to B7 can be monitored without any interference, and parts can be resupplied smoothly without being obstructed by the upper hoppers. You can do it.And each bowl hopper B~
& is easily separated and removed from the cylinders 20, 30;
This is convenient when changing or modifying the ring, and the cylindrical track and hopper can be machined, making this repair easy. Each electromagnet NL in the embodiment described above
~Md is installed in the space between the upper table 12 and the lower table top wheel 3, but since there is not enough space in this area as several leaf springs intersect, it is not possible to install a large multiple bowl feeder. The problem is that it is difficult to install.

Therefore, a modified embodiment is proposed in which the electromagnets NL to Md are installed on the upper surface of the upper table as shown in FIGS. 5 to 7.

That is, the lower table 13' has a cross-shaped flat surface with a wide tip as shown in FIG. The lower leaf spring 1 is attached with the mounting piece 13'a that protrudes from the lower surface.
0b..., and mark the upper surface of the left and right tips 13'c with
L-shaped flange plates 13'b facing each other in a letter-shaped configuration are installed as shields, and electromagnets Ma and Mc and suction iron pieces 14b and 14 are mounted on their inner surfaces.
d is attached. One upper table 12' is the seventh
As shown in the figure, the outer diameter is the same as that of the lower table 13', and the planar shape is cut out to avoid the L-shaped collar plates 13'b that stand up on the left and right sides, and the L-shaped collar plates that stand on the front and back of the upper surface. Board 1
The leaf springs 10...
The mounting pieces 12'a... are attached and supported by.... Also, an electromagnet Mb is placed on the inner surface of the L-shaped collar plate 12'b.
N×, suction iron piece 14a, force &c are attached, and each electromagnet N&,N is attached to the L-shaped saw plate force 3'b of the table tatami 3'.
Two sets of vibration systems are made up of electromagnets NZ and N, and Mb and Nh, which face each other with a suitable gap g left between them and the iron piece 4b and turtle d, and which face each other through the center. Configure on the upper table. These two sets of vibration systems (on Ma and N and on Mb
and Md) are alternately excited on the positive and negative sides with a half-wave rectified commercial AC voltage with a phase difference of 180o.
Upper and lower table width 2 "Top 8' is 60Hz (or 50Hz)
) is reciprocated in both clockwise and counterclockwise directions, and the same effect as in the previous embodiment is obtained. Of course, in this embodiment, the four electromagnets Ma to Md are excited simultaneously It is possible to change the design so that the upper and lower tables are excited only in one direction, and since each electromagnet Ma to Md is arranged on the upper table in this way, ~ plate 1
In addition to being able to easily adjust the gap between the suction iron wing turtle a and the ear mother d without being obstructed by the imitation turtle Qa... military turtle enemy...
Electromagnets can be easily placed even in small multiple bowls. In each of the above embodiments, if the upper and lower tables are excited in only one direction by an electromagnet, it is possible to configure the vibration system with at least one electromagnet.

The bowl feeder device of the present invention has an upper table and a lower table that are independently supported vertically and have bowl hoppers at each end of several boards arranged on a base, and vibration is applied between them. Because the electromagnet and suction iron piece are attached, the vibration directions of the upper and lower tables are in opposite phases and cancel out the vibration reaction forces on the base, greatly reducing the vibration of the base. It is possible to directly fix the bowl hopper to the installation floor in a monkey-proof state, which improves stability, and also reduces misalignment of the joint of the chute that connects the bowl hopper and the external machine. It has various excellent effects such as smoothing the feeding of parts.

Furthermore, we developed a multi-bowl hopper feeder in which a large number of bowl hoppers are stacked in a conical shape with appropriate vertical spacing so that the outer diameter of these bowls gradually decreases from the bottom side without disturbing the balance of the inertial masses of the upper and lower tables. Because of this structure, different types of parts can be supplied from each bowl hopper using the chute, and parts can be supplied to each bowl hopper and the parts in each hopper can be monitored accurately without being obstructed by the upper hopper. In addition, ``Since each bowl hopper can be separated,'' each hopper is machined individually to create a highly accurate product, and ``It is convenient for changing or modifying tooling, and is also excellent in terms of use and maintenance. Simple Explanation of Drawings The drawings show each embodiment of the multiple bowl feeder device of the present invention. Figure 2 is a perspective view showing the external appearance of the multiple bowl feeder bag counterfeit of the present invention. ``Figure 3 is a sectional view showing the details of the bowl hopper stacked in multiple layers'' ``Figure 4 is a sectional view taken along the line 1-1 in Figure 3'' ``Figure 5 shows a modified embodiment'' The perspective view and FIGS. 6 and 7 are plan sectional views showing the relationship between the electromagnets arranged on the lower table and the upper table.

BF...Multiple bowl feeder device, Bw B, ~B? …
...Multiple bowl hopper ~ Ma, Md... Electromagnet (turtle 4a
~1 turtle d... suction iron piece), P... parts, S, ~S
7...Chute (Sa...starting machine), T, ~T7...
...Track (Ta...end), turtle...Base, 10a
, 10b... Leaf spring 12, Tortoise 2'... Upper leg table, 13, 13'... Lower table.

Plan! Figure 2 Figure 4 Figure 3 Figure 6 Figure 5 Figure 7

Claims (1)

[Claims] 1. An upper table and a lower table each having a bowl hopper at the top end of several leaf springs tilted on a base are independently supported vertically, and an electromagnet for excitation is installed between them. A multiple bowl feeder device characterized in that a suction iron piece is attached and the vibration directions of the upper and lower tables are set in opposite phases. 2 An upper table and a lower table each having a bowl hopper at the top end of several leaf springs tilted on a base are independently supported vertically, and an electromagnet for excitation and a suction iron piece are attached between them. , in which the vibration directions of the upper and lower tables are in opposite phases, a multi-stage bowl hopper whose outer diameter is gradually reduced from the lower stage side is arranged in a conical shape at an appropriate vertical interval without disturbing the balance of the inertial mass of the upper and lower tables. A multi-bowl feeder device characterized in that the bowl hoppers are stacked in a shape and a chute is connected to the track end of each bowl hopper.