JPH0238486B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vibrating parts feeder for feeding multiple rows.

The so-called parts feeder, which transfers the parts on the track by applying torsional vibration to a parts receiver in which a spiral parts transporting track is formed along the inner circumferential wall surface, feeds the parts in an aligned state. Widely used. However, it may be necessary to supply parts in multiple rows. In such cases, multiple rows of tracks are formed in the parts receiver of the parts feeder, but it is difficult to uniformly introduce parts into these tracks.

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a vibrating parts feeder for feeding multiple rows that can feed parts from each row at a uniform feeding speed. According to the present invention, this purpose is to apply a torsional vibration to a component receiver in which a spiral component transfer track is formed along an inner circumferential wall surface to transfer the components on the track. In the vibrating parts feeder, a discharge end of the track is provided with a stepped and radial step that slopes downwardly toward the outside of the part into the part receiver and is lower than the thickness of the plate-shaped parts to be sorted. The downstream end of each of the plurality of distribution tracks formed so as to increase in height toward the outside is connected to a plurality of arcuately extending single-row transfer tracks, and the downstream end of each of these single-row transfer tracks is connected to a plurality of arcuately extending single-row transfer tracks. is connected to a plurality of rows of arcuately extending parts sorting sections, and the said part is slightly overflowed from the discharge end of said track to the innermost one of said plurality of distribution tracks radially outward of said part receiver. Guide the parts and gradually remove the overlapping parts.
This is achieved by a multi-row vibrating parts feeder, characterized in that the parts are distributed over outer distribution tracks and each of the plurality of distribution tracks leads to the single-row transport track. Ru.

Hereinafter, details of the present invention will be explained based on illustrated embodiments.

1A and 1B are an enlarged perspective view of a component 1 seen from the back and a front of a chip resistor, respectively, which are sorted according to this embodiment. 2 and 3 are a partially cutaway side view and a plan view, respectively, of this embodiment, and in the figures, the entire parts feeder is shown as 2, and the entire linear vibration feeder is shown as 3. In the parts feeder 2, an annular mounting plate 5 for mounting various attachments to be described later is integrally fixed to the outer peripheral wall of a ball 4 that receives a large amount of parts 1 (not shown). A spiral track 6 is formed on the inner circumferential wall of the ball 4 as is known in the art, and a component distribution section 7 according to the present invention is provided at the discharge end of the track 6.
A component single-row transfer unit 8 is connected to the downstream side of the unit.
These are fixed to the mounting plate 5. The component single-row transfer section 8 consists of two rows of arcuately extending tracks 9 and 10, each of which is connected to a front-back sorting device 11. The details of the sorting device 11 are shown in FIGS. 8 to 11 and will be described later, but various sorting means are provided along two rows of transfer paths. The front and back alignment devices 11 for each row extend over an angular range of about 90 degrees, and although there are some parts where there are slight differences in the angular positions of the various alignment means, they have the same configuration. A component posture holding and transferring section 12 is connected to the downstream side of the sorting device 11, and the above-mentioned linear vibrating feeder 3 for supplying components is connected to this with a slight gap.

As shown in FIG. 2, a movable core 12' is fixed to the lower part of the ball 4, and this
3 by a plate spring 16 arranged at an angle. The base 13 is integrally formed on a common base 14 with the linear vibration feeder 3, and the whole is supported on the floor by vibration isolating rubber 15. An electromagnet 18 having a coil 17 wound thereon is fixed on the base 13. When the coil 17 is energized, the ball 4 performs torsional vibration, and the entire torsional vibration drive section configured as described above is covered with a cylindrical cover 19.

On the other hand, in the linear vibration feeder 3, a linearly extending trough 20 is covered with a cover plate 21, and a leaf spring mounting block 22 is fixed to the lower part of the trough 20. This is coupled to a base 23 and a pair of front and rear inclined leaf springs 25. The base 23 is fixed on an auxiliary base 24 for height adjustment, and the auxiliary base 24 is further fixed on the common base 14.
An electromagnet 2 with a coil 27 wound around the base 23
6 is fixed, and a movable core 28 is fixed to the leaf spring mounting block 22 opposite to this.

Next, the component distribution section 7 will be explained with reference to FIGS. 4 to 6.

The parts distribution section 7 is constituted by a block 29, inside which an upper transfer surface 30 and a lower transfer surface 3 are provided.
1 is formed. A step having a height smaller than the thickness of the component 1 is formed between the two transfer surfaces 30 and 31. The width of the upper transfer surface 30 is generally smaller than the width of the lower transfer surface 31, but it becomes wider toward the downstream side, while the width of the lower transfer surface 31 becomes narrower toward the downstream side. Further, both transfer surfaces 30, 31 are inclined downwardly at an angle α toward the outside of the ball, as shown in FIG. Therefore, the component 1 is transferred while being biased toward the side wall portion 32 and the step. As shown in FIG. 6, both side wall portions 30 and 31 are further inclined upwardly at an angle of β toward the transport direction. The angles α and β are approximately 12 degrees and approximately 5 degrees, respectively, in this example. On the upstream side, the lower transfer surface 31 communicates with the discharge end of the helical track 6, and on the downstream side, the upper transfer surface 30 communicates with one of the single-row transfer tracks 9, and the lower transfer surface 3
1 communicates with the other single-row transfer track 10.

As shown in FIG. 7, the component single-row transfer section 8 is constituted by a block 33, and inverted trapezoidal tracks 9 and 10 are formed as grooves on the upper surface of the block 33.
Bottom surfaces of trucks 9, 10, ie transfer surfaces 9a, 1
The width of 0a is slightly larger than the width of component 1. The tracks 9 and 10 extend in an arc shape, but are close to each other at the upstream end, gradually move away from each other toward the downstream side, and are connected to respective transfer paths of the front and back sorting device 11 at the downstream end.

In the front/back side sorting device 11, the upstream side sorting section is constituted by a pair of arc-shaped blocks 34 and 35, which are fixed on the mounting plate 5. One exclusion passage 36 is formed between the blocks 34 and 35 on the mounting plate 5, and the other exclusion passage 37 is formed on the left side of the block 35 in FIG. These exclusion passages 36, 37 communicate with the inside of the ball 4 via holes, slopes, etc.

Each block 34, 35 is formed with a transfer path having a cross-sectional shape as shown in FIG. It consists of a slope 39 and a second transfer slope 41 opposite thereto, and a narrow groove 40 having an L-shaped cross section is formed between the slopes 39 and 41, that is, in the valley.

As shown in FIGS. 1 and 9, cutouts 42 and 43 are formed in the intermediate portions of the blocks 34 and 35 to extend in an arcuate manner so as to omit the second transfer slope 41. Below the notches 42 and 43 on the downstream side, a vertical wall portion 44 is connected to the second transfer slope 41 as shown in FIG. 9 for one block 34.
is added. As shown in FIG. 10, there is a small depression 4 on the first transfer slope 39 facing this part.
5 is formed, and an air jet hole 46 is formed on the downstream side adjacent to this recess 45 so as to penetrate through the blocks 34, 35. A compressed air supply nozzle 47 is connected to the air jet hole 36 . (One block 3
Although only block 4 is illustrated and explained, the other block 35 is similarly constructed. )
Front and back detection devices 62 and 63 are disposed above the recess 45 by mounting members 64. This device 6
Reference numerals 2 and 63 consist of a light emitting element and a detection element, and the light beam from the light emitting element is projected onto the recess 45.

A pair of arc-shaped blocks 48 and 49, the cross-sectional shape of which is shown in FIG. Blocks 48, 49 have horizontal transfer surfaces 50, 51 and vertical surfaces 5.
2, 52', slopes 53, 53' are formed, and the width of the horizontal transfer surfaces 50, 51 is slightly larger than the width of the part 1. Further, the center lines of the horizontal transfer surfaces 50 and 51 are aligned with the upstream groove 40, respectively.

The component front/back alignment device 11 is constructed as described above, and the component orientation holding/transfer section 12 shown in FIG. 12 is connected thereto.

The transfer unit 12 is a block 5 fixed to the mounting plate 5.
4, 58 and lid members 55, 59, which form tunnels 56, 57 having a width slightly larger than the width of the part 1 and a height slightly larger than the thickness of the part 1. these tunnels 5
6 and 57 are connected to grooves 60 and 61 formed in the trough 20 of the linear vibrating feeder 3. One groove 6
1 is curved in the middle as shown in Figure 3,
Thereby, the component 1 is supplied to the next process at a desired distance from the grooves 60, 61.

Although the embodiment of the present invention is configured as described above,
Next, this effect will be explained.

When the coils 17 and 27 are energized, the balls 4 of the parts feeder 2 perform torsional vibration, and the trough 20 of the linear vibration feeder 3 performs linear vibration. ball 4
The parts 1 inside are transported on a track 6 and reach a parts distribution station 7, clearly shown in FIG. 4, in a plurality of rows overlapping each other. The parts 1 traveling on the lower transfer surface 31 are transferred along the step, and the parts 1 overlapping on this transfer surface 31 are transferred to the upper transfer surface because the transfer surfaces 30 and 31 are outwardly and downwardly inclined. 30 side, and is transported along the side wall portion 29. Each transfer surface 3
Part 1 from 0,31 to single-row transfer track 9,10
However, if the flow rate of components supplied from the truck 6 to the distribution section 7 is adjusted appropriately, the amount distributed to each single-row transfer truck 9, 10 can be made almost uniform, with almost no excess or deficiency. The trucks 9 and 10 are transported.

Since the single-row transfer tracks 9 and 10 have an inverted trapezoidal cross section, the parts 1 whose longitudinal direction is oriented in the transport direction continue to advance on the bottom surfaces 9a and 10a, but the parts introduced sideways 1 as well, the longitudinal direction is oriented in the transport direction by the action of the slopes on both sides.

The parts 1 supplied to each row of the parts front and back sorting device 11 are guided onto the horizontal transfer path 38 as shown in FIG. . Most of them fall onto the first transfer slope 39 as intended, but some fall onto the second transfer slope 41.
Some fall to the side. However, such a part 1
When the notches 42 and 43 are reached, block 3 is shown in Fig. 9.
Ball 4 is rejected inward as shown for 5. Furthermore, the parts 1 that overlap on the first transfer slope 39 also fall here. When reaching the bottom of the front/back detection devices 62, 63 on the first transfer slope 39, the front-facing part 1 passes directly over the air outlet 46, as shown in FIG. 10, but the face-facing part 1' Since the back surface is specular, the light rays from the light emitting element are efficiently reflected to the analyzer element, increasing the amount of light received. As a result, it is determined that the component 1' is facing down, and air is jetted out from the air jetting hole 46. As a result, the component 1' is blown down onto the second transfer slope 41. At this time, according to this embodiment, a groove 40 is formed between both slopes 39 and 41.
Since this is formed, the component 1' rotates with its end supported by this. In other words, stable rotational movement is performed. If this groove 40 were not present, the part 1' could jump and become vertically oriented. Even if the component 1' is oriented vertically in this embodiment, the vertical wall portion 44 further functions to correct the vertically oriented component 1' to a horizontal orientation.

From each transfer ramp 39, 41, the parts 1 are led to a merging track 50, 51 shown in FIG. At this time, due to the action of the side wall portion 52 and the slope 53, each component 1 is transferred to the horizontal transfer surface 50, without changing its front and back sides.
51 to be defeated. The component 1 is guided into the trough 20 of the feeder 3 through tunnels 56 and 57 of the component attitude-maintaining transfer section 12. A pair of grooves 60, 61 of this trough 20 feeds the parts 1, which have been fed front and back, to the next process at a predetermined interval.

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

For example, in the above embodiment, the case where two rows are supplied has been described, but the number of rows may be further increased. In this case, the number of grooves 60 and 61 of the feeder 3, the number of stages of the transfer surface of the component distribution section 7, and the number of rows of the single-row transfer paths 9 and 10 may be increased accordingly.

Furthermore, although a front/back sorting device is used as a part sorting means in the above description, the present invention is not limited to this, and various sorting means can be applied.

As described above, according to the multi-row vibrating component feeder of the present invention, components can be fed in multiple rows at a substantially uniform feeding speed.

[Brief explanation of drawings]

1A and 1B are enlarged perspective views of parts applied to the embodiment of the present invention, viewed from the back and front;
The figures are a partially cutaway side view of a multi-row vibrating parts feeder according to an embodiment of the present invention, FIG. 3 is a plan view of the same, FIG. 4 is an enlarged perspective view of the same essential parts, and FIG. -A sectional view in the line direction, Fig. 6 is a partially broken side view of the same essential part, Fig. 7 is an enlarged sectional view in the - line direction in Fig. 3, and Figs. 8 and 9 are respectively in the - line direction in Fig. 3. , FIG. 10 is an enlarged plan view in the − line direction in FIG. 9, and FIGS. 11 and 12 are enlarged sectional views in the XI-XI direction and XII-XII line direction in FIG. 1, respectively. It is. In the figure, 1... Parts, 2... Parts feeder, 4... Ball, 6... Spiral track, 7... Parts distribution section, 8... Parts single-row transfer section,
9, 10...Single-row transfer track, 30...Upper transfer surface, 31...Lower transfer surface.

Claims (1)

[Claims] 1. A vibrating component feeder for multi-row supply, which transfers components on the track by imparting torsional vibration to a component receiver in which a spiral component transfer track is formed along an inner circumferential wall surface. The discharging end of the component receiver is inclined downward in the radially outward direction of the component receiver, and has a step that is lower than the thickness of the plate-shaped components to be sorted, and gradually increases in height in the radially outward direction. A downstream end of each of the plurality of distribution tracks formed as shown in FIG. connected to a sorting section, and guides the component from the discharge end of the track to the innermost distribution track radially outward of the component receiver among the plurality of distribution tracks, so as to overlap the component. 1. A vibrating parts feeder for multi-row supply, characterized in that the parts are gradually dispersed to outer distribution tracks and guided from said plurality of distribution tracks to said single-row transport track.