JPS6242803B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vibrating parts feeder that transports parts by vibration and supplies them to a subsequent process.

Recently, various vibrating parts feeders called linear parts feeders have been developed. In general,
This linear parts feeder includes: a first trough that extends linearly; a second trough that extends linearly parallel to and adjacent to the first trough; and below and parallel to the first and second troughs. a fixed part that extends linearly and is supported on a foundation; a first leaf spring that is inclined at a predetermined angle with respect to the vertical direction and connects the fixed part and the first trough; a direction opposite to the first leaf spring in the vertical direction; A second leaf spring that is inclined at a predetermined angle and connects the fixed part and the second trough; and an excitation part that excites the first trough and the second trough in opposite phases.

In the above linear parts feeder, the first trough and the second trough vibrate in opposite phases in a direction perpendicular to the inclination direction of the first leaf spring and the second leaf spring, respectively, but this vibration force is transmitted through the spring. and are transmitted as reaction forces to the fixed parts, respectively. If the amplitudes of the first and second troughs are the same, the reaction force applied by the first leaf spring and the reaction force applied by the second leaf spring cancel out in the horizontal component, but the vertical component They will be added to each other. Therefore, this vertical component reaction force is directly applied to the foundation on which the fixed part is placed, causing various troublesome problems in the surrounding area. For example, several or dozens of such linear parts feeders are often placed in parallel at close intervals on the same foundation, but if the reaction force described above is large, the linear parts feeders next to each other may Particularly, the flow of parts in the parts sorting section that is integral with the first or second trough is disturbed, which reduces the efficiency of parts sorting.

In order to solve the above problems, it is possible to support the fixed part on the foundation via a vibration isolating spring, but not only is it impossible to completely eliminate the vibration force transmitted to the foundation, but in some cases As a result, the entire linear parts feeder may vibrate or rock, which may disturb the flow of parts in the parts feeding section.

The present invention has been made in view of the above points, and an object of the present invention is to provide a vibrating parts feeder in which the vibration force transmitted to the foundation is almost zero, and the entire part including the fixed part does not vibrate or swing. With the goal. This object is achieved according to the invention by: a first trough extending linearly; a second trough extending linearly parallel to and adjacent to said first trough; below said first trough and said second trough; a fixed part that extends linearly in parallel and is supported on a foundation; a pair of front and rear first leaf springs that are inclined at a predetermined angle in the vertical direction and connect the fixed part and the first trough; a pair of front and rear second leaf springs that are inclined at a predetermined angle in the opposite direction to the leaf springs and connect the fixed part and the second trough; an excitation part that vibrates the first trough and the second trough in opposite phases; a vibratory parts feeder comprising; a first counterweight extending linearly parallel to the first trough and the fixed part below the second trough and the fixed part; A second counter extending linearly to
the fixed part and the first counter weight are coupled by a pair of front and rear third leaf springs extending in the same direction as the first leaf spring, and the fixed part and the second counter weight are connected to each other; They are coupled by a pair of front and rear fourth leaf springs extending in the same direction as the second leaf spring, and generate an excitation force having an opposite phase to the excitation force of the excitation section, and This is achieved by a vibrating parts feeder characterized by being provided with a second vibrating section that vibrates two counter weights in opposite phases.

DESCRIPTION OF THE PREFERRED EMBODIMENTS A circulating vibrating parts feeder or linear parts feeder according to an embodiment of the present invention will be described below with reference to the drawings.

1 and 4 show a first embodiment of the present invention, in which the vibrating parts feeder is indicated as 1 as a whole, and a return trough 2 and a supply trough 3 are arranged in parallel with a short distance apart. A parts sorting section 4 is integrally formed in the return trough 2. A parts discharge part 9 is connected to the parts sorting part 4.

As shown in FIGS. 2 and 4, leaf spring mounting blocks 10 and 11 are fixed to the bottoms of the return trough 2 and the supply trough 3, respectively, and these are connected to a common fixing part by a pair of front and rear leaf springs 16 and 17, respectively. 12. The fixed part 12 includes a base 15 and a pair of bolts 26, 2 screwed onto this fixed part 12.
7, it is supported on the foundation on which the entire feeder 1 rests. Grooves 15a and 15b are formed in the base 15 to receive the heads of bolts 26 and 27.

Below the fixed part 12, as shown in FIG. 4, a supply trough side counter weight 13 and a return trough side counter weight 14 are arranged adjacent to and parallel to this, and these are connected to the above-mentioned plate. Spring 1
7 and 16, each is connected to the fixing part 12. That is, the upper ends of the leaf springs 16 and 17 are fixed to the leaf spring mounting blocks 11 and 10 by bolts 30 and 33, respectively, and the center part is fixed to the leaf spring mounting blocks 11 and 10 by bolts 30 and 33, respectively.
1 and 34 to the fixed block 12, and the lower end portions are fixed to the counterweights 13 and 14 by bolts 32 and 35. Leaf spring 16,1
7 are inclined in opposite directions as shown in FIG. 2, so that the return trough 2 and the supply trough 3
is supported to vibrate in the directions of arrows A and B. Further, the counter weights 14 and 13 are supported so as to vibrate in directions parallel to arrows A and B, respectively. In addition, counter weights 13 and 14
are formed with notches 28 and 29 for inserting bolts 26 and 27, but these notches 2
The sizes of bolts 8 and 29 are such that the bolts 26 and 27 do not interfere with the vibration of the counterweights 13 and 14.

An electromagnet fixed core 18 with a coil 18a wound thereon is fixed to the leaf spring mounting block 10 via a mounting member 19, and a movable core 20 is attached to the other leaf spring mounting block 11 by bolts 21 on the opposite side. Fixed. The movable core 20 extends laterally with a gap from the mounting block 10, as shown in FIG. The first vibrating section of this embodiment is composed of the fixed core 18, the coil 18a, and the movable core 20, but when the coil 18a is energized with alternating current, the return trough 2 and the supply trough are 3 is excited in opposite phase.

On the other hand, an electromagnet fixed core 22 wound with a coil 22a similar to that of the first vibrating section is also fixed to the return trough side counter weight 14 via a mounting member 23, and a movable core 24 is supplied opposite to this. It is fixed to the trough side counterweight 13 and extends laterally with a gap from the return trough side counterweight 14. The second vibrator of this embodiment is composed of a fixed core 22, a coil 22a, and a movable core 24, but when the coil 22a is connected to the AC power supply common to the coil 18a of the first vibrator, The counter weight 1 is
3 and 14 are excited in opposite phases to each other and in opposite phases to the supply trough 3 and the return trough 2, respectively.

According to this embodiment, the parts sorting section 4, the discharging section 9,
The return trough 2 side movable part including the movable core 20 and the like and the supply trough 3 side movable part including the fixed core 18 etc. have substantially the same mass, and the return trough 2 side movable part and the return trough 2 side movable part including the fixed core 22 etc. The trough side counter weight 14 and the supply trough side counter weight 13 including the supply trough 3 side movable part and the movable core 24 have substantially the same mass. Therefore,
Coils 18a and 22 of the first vibration part and the second vibration part
When a is connected to a common AC power supply, return trough 2
The supply troughs 3 and 3 vibrate in opposite phases but with the same amplitude in the directions of arrows A and B, respectively, and the counterweights 13 and 14 also vibrate in opposite phases but with the same amplitude.

In Fig. 1, parts m in the supply trough 3 (shown sporadically to make the diagram easier to understand)
is transported in the direction shown by the arrow, ascends the inclined transport surface, and reaches the flat section 5. At this point, it moves to the return trough 2 side under the guiding action of the guide portion 6.
The transfer surface of the return trough 2 is horizontal and is on the same level as the left end of the supply trough 3 in the figure, and the transfer surface of the parts sorting section 4 integrally fixed to the return trough 2 is on the flat surface of the supply trough 3. It is at almost the same level as No. 5, but it is tilted slightly downward toward the return trough 2 side. Therefore, on the parts sorting section 4, the parts m are shifted in the direction shown by the arrow, as shown in the side wall part 4a. Actually, a sorting means is further added to the parts sorting section 4, but since it is not particularly relevant to the present invention, the explanation thereof will be omitted. The parts m whose postures have been corrected in the parts sorting section 4 are discharged one by one from the discharge section 9. The parts whose posture has not been corrected or the parts which have overflowed fall into the return trough 2 or into the supply trough 3 and are further circulated through the return trough 2 and the supply trough 3. As shown by the dotted line, an opening is formed in the lower part of the sorting section 4 in communication with the terminal end or left end of the return trough 2, through which the parts m are transferred to the starting end of the supply trough 3. be guided.

The upper and lower ends of the leaf springs 16, 17 vibrate in the same way as the troughs 2, 3 and the counterweights 13, 14, but always in opposite directions. That is, to explain the leaf spring 16 in FIG. 2, when its upper end is in the direction of arrow b,
The lower end is in the b′ direction. Therefore, the leaf spring 16,1
The sum of the reaction forces of the vibrations applied to the fixed part 12 from the troughs 2, 3 and the counterweights 13, 14 via the troughs 7 becomes zero. Furthermore, the forces in opposite directions b and b' act as a moment on the fixed part 12, but this is in the completely opposite direction to the moment of the force acting on the upper and lower ends of the other leaf spring 17. Therefore, the reaction force due to the moment also cancels out and becomes zero. Eventually, the force transmitted to the fixed part 12 becomes zero. Therefore, no vibration force is applied to the base 15, that is, the foundation.

FIG. 5 shows a second embodiment of the present invention. In the figure, parts corresponding to the first embodiment are denoted by the same reference numerals, and a description thereof will be omitted.

In other words, this embodiment is different from the first embodiment in that the first and second embodiments are different from each other.
The structure of the excitation part is different, and a pair of coils 41a, 4
Electromagnet fixed core 4 with 1b wound on opposite sides
1 is fixed to the upper surface of the fixed part 12, and a second electromagnet fixed core 46 around which a pair of coils 46a and 46 are similarly wound is fixed to the lower surface of the fixed part 12. The movable core 42 faces the coil 41a and is fixed to the leaf spring mounting block 10 on the supply trough 3 side by bolts 44, and the movable core 48 faces the coil 46b.
It is fixed to the supply trough side counterweight 13 by a bolt 50 opposite to the counterweight 13 . Similarly, the movable core 4 faces the coils 41b and 46a on the other side.
3 and 47 are fixed to the leaf spring mounting block 11 on the return trough 2 side and the counter weight 14 on the return trough side with bolts 45 and 49, respectively. Fixed core 41, coils 41a, 41b, movable core 4
2 and 43 constitute a first vibrating section, which includes a lower fixed core 46, coils 46a and 46b, and a movable core 4.
7 and 48 constitute a second vibrating section. When a common AC power source is connected to the coils 41a, 41b, 46a, and 46b, the troughs 2, 3 and the counter weight 1 are activated by the first vibration part and the second vibration part.
3 and 14 vibrate in the same phase relationship as in the first embodiment, and no vibration force is transmitted to the fixed part 12.

Although the embodiments of the present invention have been described above, the present invention is of course not limited to these embodiments, and various modifications can be made based on the technical idea of the present invention.

For example, in the above embodiment, the return trough side movable part, the supply trough side movable part, the counter weight 1
Although the masses of the movable parts on the 3 and 14 sides are made almost the same, even if they are not exactly the same, the masses of the coils 18a, 22a, 4
The amplitudes of these movable parts may be individually adjusted to be the same by some kind of energization amount control means separately connected to 1a, 41b, 46a, and 46b. Alternatively, the magnitude of the reaction force transmitted to the fixed portion 12 may be adjusted to be minimized.

Further, in the above embodiment, the fixing part 12 is supported on the foundation via the bolts 26, 27 and the base 15, but a plurality of legs are integrally formed on the sides of the fixing part 12 without using these. However, the fixed part 12 may be supported on the foundation by this.

In addition, in the above embodiment, the troughs 2 and 3 and the fixed part 1
2, and a fixed part 12 and a counter weight 13,
14 are connected by one long leaf spring 16, 17, but they may be connected by separate leaf springs.

Further, in the above embodiment, both the troughs 2 and 3 are arranged close to each other to provide a circulation type, but they may be configured to perform independent transfer operations.

As described above, the vibrating parts feeder of the present invention has the following features:
a first trough that extends linearly; a second trough that extends linearly parallel to and adjacent to the first trough;
A fixed part that extends linearly below and parallel to the first trough and second trough and is supported on a foundation; a fixed part that is inclined at a predetermined angle with respect to the vertical direction and connects the fixed part and the first trough. a pair of first leaf springs; a pair of front and rear second leaf springs that are inclined at a predetermined angle in the opposite direction to the first leaf spring in the vertical direction and connect the fixed portion and the second trough;
A vibrating part feeder comprising: a vibrating section that vibrates a trough and a second trough in opposite phases;
A first counterweight extending linearly parallel to and below the trough and the fixed part, and a second counterweight extending linearly parallel to and below the second trough and the fixed part. the fixed part and the first counterweight are coupled by a pair of front and rear third leaf springs extending in the same direction as the first leaf spring, and the fixed part and the second counterweight are connected to the second plate; The first counter weight and the second counter weight are connected by a pair of front and rear fourth leaf springs extending in the same direction as the spring, generate an excitation force having an opposite phase to the excitation force of the excitation section, and the first counter weight and the second counter weight. 2nd wave that excites with opposite phase
Since the vibrating part is provided, almost no vibration is transmitted to the foundation on which this feeder is placed, even if no vibration-proof spring is used. Further, the first trough and the second trough always vibrate stably.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a vibrating component feeder according to a first embodiment of the present invention, FIG. 2 is a side view of the same feeder, and FIG.
The figures are a partial bottom view in the - line direction in FIG. 2, FIG. 4 is a rear view of the feeder, and FIG. 5 is a side view of the vibrating component feeder according to the second embodiment of the present invention. In the figure, 1... vibrating parts feeder, 2...
...Return trough, 3... Supply trough, 12... Fixed part, 13... Supply trough side counter weight,
14... Return trough side counter weight, 1
6, 17... leaf spring, 18, 22, 41, 46...
...Electromagnet fixed core, 18a, 22a, 41a, 4
1b, 46a, 46b...Coil, 20, 24,
42, 43, 47, 48...Movable core.

Claims (1)

[Scope of Claims] 1. A first trough that extends linearly; a second trough that extends linearly parallel to and adjacent to the first trough; below the first trough and the second trough and parallel to them; a fixed part that extends linearly and is supported on a foundation; a pair of front and rear first troughs that are inclined at a predetermined angle with respect to the vertical direction and connect the fixed part and the first trough;
Leaf springs; a pair of front and rear second leaf springs that are inclined at a predetermined angle in the opposite direction to the first leaf spring in the vertical direction and connect the fixing portion and the second trough; In the vibrating parts feeder comprising: a vibrating part that vibrates in opposite phase;
A first counterweight extending linearly parallel to and below the trough and the fixed part, and a second counterweight extending linearly parallel to and below the second trough and the fixed part. the fixed part and the first counterweight are coupled by a pair of front and rear third leaf springs extending in the same direction as the first leaf spring, and the fixed part and the second counterweight are connected to the second plate; The first counter weight and the second counter weight are connected by a pair of front and rear fourth leaf springs extending in the same direction as the spring, generate an excitation force having an opposite phase to the excitation force of the excitation section, and the first counter weight and the second counter weight. 2nd wave that excites with opposite phase
A vibrating parts feeding machine characterized by being provided with a vibrating section. 2. The vibrating component supplying machine according to item 1, wherein the first leaf spring and the third leaf spring, and the second leaf spring and the fourth leaf spring are each integrated.