JP2526957B2 - Multiple part feeder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a multi-part feeder adapted to feed parts from each of a plurality of part feeders vertically arranged in multiple stages.

[Conventional technology and its problems]

The Applicant has recently used, as a parts feeder of this kind, a parts receiver having a spiral part transfer track formed along an inner peripheral wall and having a first opening at a central bottom thereof, and a part receiver disposed below the part receiver. A drive portion mounting plate having a second opening provided in the central portion and aligned with the first opening, and a plurality of leaf springs arranged at an equal angular interval to connect the component receiver and the drive portion mounting plate , A plurality of part feeders, each of which is a movable core fixed to one of the component receiver and the drive unit mounting plate, and an electromagnet fixed to the other, are arranged on the upright support column at intervals above and below, respectively. Insert through the second opening,
A multi-part feeder has been developed which is supported below the respective component receivers on a support member fixed to the upright support via a vibration-proof elastic member.

However, as a next step, a chute or a linear feeder is generally connected to each discharge end of the truck of the above multi-part feeder with a slight gap, and the component receiver has a known torsional vibration within a plane at a certain angle with respect to the horizontal plane. However, in some cases, the discharge end of the component receiver, that is, the discharge end of the track oscillates or vibrates above and below the above surface, which makes it difficult to align the track and the next step, for example, the chute. If this alignment connection is not performed correctly, the parts from the truck may get stuck in a gap between the next process and jump out to the outside.

[Problems to be solved by the invention]

The present invention has been made in view of the above problems, and does not require any troublesome adjustment work for the above-mentioned alignment connection, and can smoothly and reliably supply components from each component receiver to the next step. The purpose is to provide a parts feeder.

[Means for solving problems]

The above-mentioned object is to form a spiral component transfer track along the inner peripheral wall, and have a component receiver having a first opening at the center bottom, and the first component is provided below the component receiver at the center. A drive unit mounting plate having a second opening aligned with the opening, a plurality of leaf springs arranged at an equal angular interval to connect the component receiver and the drive unit mounting plate, the component receiver and the drive A plurality of part feeders, each of which is composed of a movable core fixed to either one of the part mounting plate and an electromagnet fixed to the other, are vertically arranged on the upright column to form a plurality of parts.
In the multiple part feeder, which is inserted through the second opening and is supported on the support member fixed to the upright column below each of the component receivers via the vibration-proof elastic member, the drive unit mounting plate or the drive unit mounting plate. This is achieved by a multi-part feeder characterized in that at least one elastic member is interposed between the mounting member fixed to the peripheral portion of the second opening of the mounting plate and the outer peripheral portion of the upright column.

[Action]

When an alternating current is applied to the electromagnet, each component receiver independently performs torsional vibration, and one component can be delivered from the discharge end of each component transfer truck to the next process, for example, the chute smoothly and reliably. .

Since the discharge end of the truck undergoes torsional vibration in a plane at a substantially constant angle with respect to the horizontal plane, the discharge end and the next step, for example, the aligned connection to the start end of the chute, can be easily performed.

〔Example〕

Hereinafter, a multiple parts feeder according to an embodiment of the present invention will be described with reference to the drawings.

In the figure, the multiple parts feeder as a whole (1)
, And is supported on the base plate (2), and the base plate (2) is supported on the ground via the anti-vibration rubber (3). A cylindrical support part (4) is integrally formed at the center of the base plate (2), and a screw part (5a) formed at the lower end of the upright cylinder (5) is screwed and fixed thereto. There is. Three parts feeders (6), (7) and (8) are supported on the upright cylinder (5) through each member described later. Since these parts feeders (6), (7) and (8) have almost the same structure, the parts feeder (6) in the uppermost stage will be mainly described below.
Will be described.

The parts feeder (6) is provided with a ball (9) having a generally outer shape, and a spiral part transfer track (10) is formed on the inner peripheral wall portion thereof. A circular opening is formed in the central bottom of the ball (9), and a cylindrical member (11) is fixed to this, and a cylindrical auxiliary support member (14) is fixed to this.
Through which the upright cylinder (5) described above is inserted.
Is inserted. The auxiliary support member (14) is in contact with the support ring (22) at the lower end, and the support ring (22)
Is fitted in the upright cylinder (5), and the tubular member (11) of the lower part feeder (7) (hereinafter, the same parts are the same in each part feeder (6) (7) (8)). The auxiliary support member (16) corresponding to the auxiliary support member (14) is inserted into the upper surface of the auxiliary support member (16). That is, the support ring (22) is sandwiched between the upper and lower auxiliary support members (14) (16). In this respect, the lower part feeders (7) and (8) are also constructed in the same manner, and the lid member (12) screwed to the upper end of the upright cylinder (5).
By tightening the screw part (12a), the auxiliary supporting members (14) (16) and the auxiliary member (45) for the lowermost part feeder (8) are integrated and fixed to the upright cylinder (5). To be done. A hook (13) is fixed to the lid member (12) so that the entire multiple parts feeder (1) can be transported by, for example, a crane.

An annular mounting member (7) is fixed to the bottom of the ball (9), and a leaf spring mounting plate (18) is in contact with the lower end of the ball, and the annular auxiliary mounting member (19) is shown in FIG. Place the inner edge against the mounting member (17) as shown in the illustration, and tighten the bolt (20).
Is screwed into the screw hole of the leaf spring mounting plate (18) and tightened to integrate the pole (9) and the leaf spring mounting plate (18).

Although the leaf spring mounting plate (18) has an opening (18a) through which the above-mentioned auxiliary support member (14) is inserted, which is formed in the central portion,
A plurality of recesses (21) are formed near the inner peripheral edge. Screw holes are formed in the support ring (22) at equal angular intervals near the outer peripheral edge thereof, and screws fixed to the lower end of the anti-vibration rubber (23) are screwed into these and fixed to the upper end thereof. The inserted screw is inserted through a hole formed at a position corresponding to the recess (21) of the leaf spring mounting plate (18), and a nut (25) is screwed into and tightened into the ball (9). Also, the leaf spring mounting plate (18) integrated with the plate spring (18) is stably supported on the support ring (22) via the vibration-proof rubber (23) so as to be torsionally vibrable.

Notches are formed in the leaf spring mounting plate (18) so as to have four slope portions (18b) at equal sensitivity intervals. Correspondingly, the drive portion collecting plate (27) has four notches. A notch is formed so as to have a portion (27b), and each slope portion (18b) (27
A leaf spring (26) is fixed to b) as shown in FIG. The inclined surfaces of the four leaf springs (26) are the same. A pair of movable cores (5
1) (52) are fixed in the positional relationship shown in FIG. 4, and electromagnets (28) (29) with coils wound so as to face them with a gap g therebetween are attached to the drive unit mounting plate. It is fixed at (27). Further, balance weights (30) (31) are fixed on the drive unit mounting plate (27).

As shown in FIG. 4, a mounting member (32), which is annular but has three thin portions, is fixed to the lower surface of the drive unit mounting plate (27) by bolts (53).
The steady rest members (60) are fixed at equal angular intervals. The steady rest member (60) comprises a cylindrical rubber member (33), a bolt portion (34) and a nut (35) fixed to the rubber member (33), and the bolt portion (34) penetrates the thin portion of the mounting member (32). The rubber member (33) for steadying is positioned and fixed by screwing the nut (35) into the screw hole and screwing the nut (35) into the screw hole. That is, the nut (35) also works as a detent and is also used for position adjustment. Rubber member (3
3) shall be sufficiently soft, but shall have sufficient hardness to prevent the ball (9) from moving up and down with respect to the torsional vibration surface. Further, in this embodiment, the rubber member (33) is in contact with the annular auxiliary support member (16), but the nut (3
The compression force of the rubber member (33) may be variable according to the degree of tightening of 5). Alternatively, a gap may be provided between the rubber member (33) and the peripheral surface of the auxiliary support member (16) by adjusting the nut (35).

The uppermost part feeder (6) in the multiple part feeder (1) is configured as described above, but the other part feeders (7) and (8) are also configured in the same manner. However, in the middle part feeder (7), as clearly shown in FIG. 1, the leaf spring (38) is inclined in the direction opposite to the leaf spring (26) of the upper part feeder (6) with respect to the vertical direction. ing. Correspondingly, the spiral track (10) formed on the inner peripheral walls of the balls (9) of the upper and lower parts feeders (6) and (8) is wound counterclockwise when viewed two-dimensionally,
It is wound clockwise in the middle part feeder (7). In addition, the electromagnet (41) fixed on the drive unit mounting portion (27) 'and those of the upper part feeder (6) of the movable core (61) fixed on the leaf spring mounting plate (62) are the same as those on the circumference. It is fixed at a position offset 90 degrees above. Accordingly, the balance weight (42) is also fixed at a 90 degree offset from the upper part feeder (6). In addition, the linear supply ends (37) (44) of the upper and lower parts feeders (6) (8) that extend outwardly of the balls of the tracks (10) are aligned vertically as shown in FIG. However, that of the interrupted parts feeder (7) (43) is at a position offset by 180 degrees, as can be seen from FIG.
4) runs parallel to. In this way, a sufficiently large space can be provided between the supply ends of the parts feeders in the vertical direction, so that the connection relationship to the next process can be facilitated.

Although not shown, each parts feeder (6) (7)
The lead wire connected to the coils of the electromagnets (28), (41) and (28) of (8) is led out to the outside through an opening (not shown) below through the hollow portion of the upright cylinder (5) and connected to the control circuit. It has been done. Further, the spring constant of the anti-vibration rubber (23) is sufficiently low and is set to several Hz in this embodiment, and the coil of each electromagnet (28) (41) is energized with a current rectified from a commercial power source (50 Hz). The parts feeders (6), (7) and (8) are driven at a frequency of 50 Hz.

Although not shown, each ball (9) (40) is also provided with an aligning means, but unaligned parts fall into a pocket and are returned to the inside of the ball. Only the parts feeder (7) is shown and is shown as (39).

The embodiment of the present invention is configured as described above, and the operation and effects thereof will be described below.

Electromagnet (28) of each parts feeder (6) (7) (8)
When an alternating current of a commercial power source is applied to the coil of (41), a torsional vibration force is generated between each ball (9) (40) and the drive unit mounting plate (27) (27) ', and the ball (9) (10) Makes torsional vibrations. The balls (9) of the upper and lower part feeders (6) and (8) are inserted counterclockwise when viewed in plan, and the parts are transferred along the track (10) by a transfer force. The ball (40) of the interrupted parts feeder (7) imparts a clockwise transfer force to the injected component, and the component is transferred along its track (70). Since the balance weights (30) and (31) are attached to the drive part mounting plates (27) of the parts feeders (6), (7) and (8), the balls (9) and (40) have a desired regular torsional vibration. Do.

Further, as shown in FIG. 1, since the balls (9) and (40) of the upper and middle parts feeders (6) and (7) are torsionally oscillated in the directions (a) and (b) as shown in the figure, the voltage of the same phase is also generated. Is supplied to the coils of each electromagnet, the horizontal components cancel each other out, and the vertical cylinder (5)
The vibration reaction force transmitted to the side becomes smaller. If all three parts feeders (6), (7), and (8) perform torsional vibrations in the same direction, the vibration reaction forces will be combined. However, since the elastic force of the antivibration rubber (23) is sufficiently small, the vibration transmission force is sufficiently small in any case.

Further, according to this embodiment, the drive unit mounting plates (27) (27) '
Since a steadying rubber member (33) is provided between the annular support plate (32) fixed to the lower surface of the and the outer peripheral surfaces of the auxiliary support members (14), (16) and (45), the electromagnet ( 28) (41)
When a coil is energized, a torsional vibration force is generated between the balls (9) (40) and the drive unit mounting plates (27) (27) ', and the drive unit mounting plate (27) also receives a reaction force and twists. Vibration occurs, but vibration in the vertical direction with respect to a predetermined torsional vibration surface is suppressed. Therefore, the balls (9) (40) supported thereon via the leaf springs (26) also do not vibrate vertically with respect to a predetermined torsional vibration surface, and are surely moved to the next step (not shown) such as a chute. And, the parts can be smoothly supplied. This is particularly effective in the case of small electronic parts. Also, when installing this multi-part feeder (1), it is necessary to adjust the connection to the next process, but in this case, when adjusting the position while vibrating each ball, there is no vertical swing as in the past, so it is easy. The connection is adjusted.

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

For example, in the above embodiments, the ring-shaped support member (32) is provided with three steady rest members (60), but in some cases, this may be one, or as in the embodiments, the rubber member (33).
May be a semi-circular rubber member or an annular shape instead of the cylindrical block shape.

Further, in the above-mentioned embodiments, the drive portion mounting plates (27) (27) 'are provided on the lower surface of the annular support member (32) for attaching the steady rest member (60), but this is omitted and the drive portion mounting plate is omitted. A rubber member may be attached to the central opening (27a) of the plates (27) (27) '. Or drive unit mounting plate (27)
The illustrated annular support member (32) may be fixed to the upper surface of (27) ′ and the steady rest member (60) illustrated may be attached thereto, but as in the embodiment, the balls (9) (40). It is desirable to attach the steady rest (60) at a position as far as possible from (). For this purpose an annular support member (3
It is desirable to further increase the vertical length of 2) and attach the steady rest (60) to this lower end.

〔The invention's effect〕

According to the multi-part feeder of the present invention, the work of connecting the discharge end of the truck of each component receiver to the next process becomes easy, and the parts to be supplied are clogged in the gap between the discharge end and the next process. It is prevented that the components are discharged to the outside, and the components can be smoothly and surely supplied to the next process.

[Brief description of drawings]

FIG. 1 is an elevation view of a multiple parts feeder according to an embodiment of the present invention, FIG. 2 is a plan view of the same, and FIG.
4 and FIG. 4 are enlarged sectional views taken along line IV-IV in FIG. In the figure, (27) (27) '... drive unit mounting plate (32) ... annular support member (33) ... rubber member (50) ... steady rest member

Claims (1)

(57) [Claims] 1. A component receiver having a spiral component transfer track formed along an inner peripheral wall thereof and having a first opening at a central bottom, and the first component disposed at a lower portion of the component receiver at the central portion.
A drive unit mounting plate having a second opening aligned with the opening, a plurality of leaf springs arranged at an equal angular interval to connect the component receiver and the drive unit mounting plate, the component receiver and the drive A plurality of part feeders, each of which is composed of a movable core fixed to one of the section mounting plate and an electromagnet fixed to the other, are mounted on the upright support column at intervals above and below.
In the multiple parts feeder, which is inserted through the opening and is supported below the component receivers on the support member fixed to the upright support via the vibration-proof elastic member, the drive unit mounting plate or the mounting plate. The multi-part feeder characterized in that at least one elastic member is interposed between the mounting member fixed to the peripheral portion of the second opening and the outer peripheral portion of the upright column.