JP3757058B2 - Vibrating article supply device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vibration-type article supply apparatus that supplies articles that are easily entangled or overlapped, such as a coil spring, in a state of being separated into a single unit.
[0002]
[Background Art and Problems to be Solved by the Invention]
When a small coil spring is supplied by a vibration-type parts feeder in a machine assembly line or the like, a plurality of coil springs 41 may be entangled with each other as shown in FIG. As an example of an apparatus for aligning and supplying articles that tend to be entangled or overlapped as described above, there are coil spring alignment apparatuses disclosed in Japanese Utility Model Publication Nos. 58-23774 and 7-32490.
[0003]
In the former, as shown in FIG. 8, a cylindrical separation container 43 and a cylindrical alignment bowl 44 are concentrically attached to the upper surface of the vibration generating device 42, and these are integrally twisted and vibrated around its axis. It is like that.
[0004]
The inner circumferential surface of the bowl 44 is provided with a spiral track 45 having a starting end on the bottom surface, and the coil spring 41 thrown into the bottom of the bowl 44 is aligned and conveyed along the track 45. Although not shown, a gate plate is attached in the middle of the track 45, and the entangled coil spring 41 having a large outer dimension is discharged to the receiving hopper 46 on the outer peripheral side by this gate plate.
[0005]
At the bottom of the separation container 43, a rotating disk 48 having a blade 47 is provided on the upper surface, and the entangled coil spring 41 introduced from the passage 49 connected to the hopper 46 is separated by the rotating blade 47. It jumps up and returns to the bottom of the bowl 44 through a gap 51 provided on the lower side of the top plate 50 projecting to the outer periphery of the separation container 43.
[0006]
In the latter case, as shown in FIG. 9, a cylindrical separation container 54 is attached to a boss portion 53 of a base 52, and an annular lower vibrating body 56 and an upper portion are attached to the outer periphery of the boss portion 53 via a vibration isolating rubber 55. A vibrating body 57 is attached, and a cylindrical alignment bowl 58 is concentrically attached to the upper surface of the upper vibrating body 57.
[0007]
Although not shown, the upper vibrating body 57 is supported by the lower vibrating body 56 by a leaf spring, and the bowl 58 is torsionally vibrated together with the upper vibrating body 57 by the action of an electromagnet and a movable iron core. A spiral track 59 similar to the former is provided on the inner peripheral surface of the bowl 58, and a passage 60 for discharging the entangled coil spring 41 is provided in the middle.
[0008]
Further, a rotary disc 61 with a blade similar to the former is provided at the bottom of the separation container 54, and the entangled coil spring 41 introduced from the introduction port 62 connected to the passage 60 is separated, and the top plate 63 is separated. It returns to the bottom of the bowl 58 through a gap 64 provided on the lower side.
[0009]
The latter has the advantage that the torsional vibration of the bowl 58 that aligns the coil spring 41 is not disturbed because the separation container 54 is directly attached to the base 52 and removed from the vibration site.
[0010]
Each of the coil spring aligning devices described above returns the separated coil spring to the bottom of the alignment bowl, so that the coil spring returned to the bottom of the bowl is again connected to the coil spring charged in the bowl. There is a problem of intertwining, and there is a problem that alignment supply efficiency is very bad.
[0011]
SUMMARY OF THE INVENTION An object of the present invention is to provide a vibratory article supply apparatus that can efficiently align and supply articles that are easily entangled and overlapped.
[0012]
[Means for Solving the Problems]
In order to solve the above-described problems, in the vibratory article supply device according to the present invention, an upper vibrating body and a lower vibrating body, which are vertically opposed to each other, are connected by a leaf spring, and the upper vibrating body is torsionally vibrated by vibration generating means. A parts feeder main body, a bowl attached to the upper vibration body and provided with a spiral track on the inner peripheral surface, and a separating device for separating the entangled or overlapped composite article into a single article, A means for sorting the composite article is provided in the middle, the composite article sorted by the sorting means is guided from the bowl track to another path, and the composite article guided to another path is separated by the separation device, and the separated article is separated. A configuration is adopted in which the single article is returned to the bowl track on the downstream side of the portion where the sorting means is provided.
[0013]
That is, the entangled or overlapped composite article in the middle of the bowl track is selected as a single article, and the selected composite article is separated into a single article by a separation device and returned to the bowl track on the downstream side of the sorting portion. This prevents the returned single article from being combined again with the article stored in the bowl bottom, so that the articles can be efficiently aligned and supplied alone.
[0014]
By providing a second sorting means for sorting the composite article and the single article in the middle of the bowl track downstream from the site where the separated single article is returned, without mixing the composite article at all, The article can be supplied to the next step.
[0015]
The separation device includes a cylindrical separation container, a rotating disk provided at the bottom thereof, and a blade provided on the upper surface of the rotating disk, and a single article separated at the top of the separation container. What provided the discharge port which discharges | emits can be employ | adopted.
[0016]
Further, by forming the upper surface of the rotating disk in a concave shape, it is possible to prevent the article dropped on the rotating disk from being caught in the gap on the outer periphery of the rotating disk.
[0017]
Further, an air supply port is provided on the lower side of the rotating disk of the separation container, and air is blown upward from the periphery of the rotating disk, so that a small, lightweight and non-elastic article can be It can discharge easily from the discharge port provided in.
[0018]
By using the article as a coil spring, it is possible to efficiently align and supply coil springs that are easily entangled.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 6.
[0020]
1 to 5 show a first embodiment. As shown in FIGS. 1 and 2, the vibratory article supply apparatus has a parts feeder main body composed of an upper vibrator 2 and a lower vibrator 3 coupled up and down by a leaf spring 1 via a vibration-proof rubber 4. A cylindrical alignment bowl 6 is attached to the base 5 with a bolt 7 at the center of the upper surface of the upper vibrator 2. This article supply device supplies coil springs 8 in alignment, and on the outer peripheral side of the alignment bowl 6, a separation device having a cylindrical separation container 9 is attached to a column 11 fixed to the base 5. Yes.
[0021]
Although not shown, the upper vibrating body 2 and the lower vibrating body 3 incorporate a movable core and an electromagnet, respectively, and the bowl 6 vibrates with the upper vibrating body 2 by connecting an AC power source to the electromagnet. . By this torsional vibration, the coil spring 8 thrown into the bottom of the bowl 6 is conveyed along a spiral track 12 provided on the inner peripheral surface of the bowl 6.
[0022]
In the middle of the track 12, narrow portions 13, 14, 15 are provided at three locations, and the coil spring 8 conveyed on the track 12 by the torsional vibration is entangled with the first narrow portion 13. 8 are aligned in almost one row, and are conveyed to the second narrow portion 14.
[0023]
An air nozzle 16 is disposed on the inner peripheral side of the second narrow portion 14, and an introduction passage 10 to the separation container 9 is disposed opposite to the outer peripheral side thereof. As shown in FIG. 3, the outer wall 17 of the narrow portion 14 is formed so as to be approximately half the diameter of the coil spring 8, and the air nozzle 16 is located at the height of the coil spring 8 at the height of the coil spring 8. Are arranged horizontally toward the outer wall 17. Since the entangled coil spring 8 passing through the narrow portion 14 is vertically overlapped by the centrifugal force generated by the torsional vibration of the bowl 6, the center of gravity is located higher than the upper end of the outer wall 17. Therefore, only the entangled coil spring 8 is selectively blown over the outer wall 17 by the air nozzle 16 and discharged into the charging passage 10.
[0024]
The entangled coil spring 8 discharged into the charging passage 10 passes through a cylindrical charging pipe 18 whose tip protrudes from the inner wall of the separation container 9 as shown by an arrow in FIG. Falls to the bottom of the. A rotating disk 20 driven by a motor 19 is provided at the bottom of the separation container 9. The upper surface of the rotating disk 20 is formed in a concave shape, and a blade 21 is attached thereto. A protruding plate 22 is attached to the lower part of the inner wall of the separation container 9. The entangled coil spring 8 that has fallen into the separation container 9 is bounced off by the blade 21 of the rotating disk 20, expands and contracts and bends, and the entanglement is removed.
[0025]
The rotating disk 20 rotates clockwise as indicated by an arrow in FIG. The protruding amount of the tip of the charging pipe 18 from the inner wall of the separation container 9 is formed to be large on the side facing the rotation of the rotating disk 20, and the entangled coil spring 8 jumped off by the blade 21 returns into the charging pipe 18. Is preventing. Further, the protruding plate 22 is attached at a position 90 degrees counterclockwise from the tip end position of the charging pipe 18 while being inclined upward toward the charging pipe 18, and the entangled coil spring 8 to be spun off is connected to the charging pipe 18. To prevent it from colliding with the tip.
[0026]
The coil springs 8 that have been entangled become lighter, and the elasticity of the spring restrained by the entanglement is restored, so that the spring springs up as shown by arrows in FIG. Returned to
[0027]
As shown in FIGS. 1 and 2, a top plate 25 is attached to the upper end of the separation container 9. The top plate 25 has a downward ridge 24 and projects above the track 12 on the downstream side of the narrow portion 14. Yes. A gap is provided between the protruding portion 26 of the top plate 25 and the upper end of the separation container 9, so that the coil spring 8 can protrude to the lower surface side of the protruding portion 26. The coil spring 8 that has jumped out of the gap is returned to the track 12 from the downward discharge port 23 surrounded by the overhanging portion 26 and the flange 24, and has passed through the second narrow portion 14. At the same time, it is conveyed to the third narrow portion 15. A shielding plate 27 is attached to the gap between the separation container 9 and the bowl 6 below the overhang portion 26 so that the coil spring 8 does not fall outside.
[0028]
An air supply port 28 is provided below the rotating disk 20 of the separation container 9. When separating the coil spring having a small wire diameter and a small spring constant, air is supplied from the air supply port 28, and the supplied air is blown into the separation container 9 from the gap on the outer periphery of the rotating disk 20 and separated. These coil springs are discharged from the discharge port 23.
[0029]
The third narrow portion 15 is provided with an air nozzle 29 for sorting the coil spring 8 and returning it to the bottom of the bowl 6 when the coil spring 8 is conveyed by any chance. As shown in FIG. 5, the connection track member 30 is attached to the narrow portion 15, and the air nozzle 29 is disposed in the groove 31 provided on the upper surface of the outer wall of the connection track member 30 and is slightly smaller than the diameter of the coil spring 8. It is directed to the inner circumference at a high position. Therefore, as described above, the centrifugal force causes the top and bottom to overlap each other, and only the high entangled coil spring 8 is blown off to the bottom of the bowl 6 by the air nozzle 29.
[0030]
The coil spring 8 that has passed through the third narrow portion 15 is aligned and supplied from the outlet 32 of the track 12 to the next process apparatus.
[0031]
FIG. 6 shows a second embodiment. This vibration-type article supply device also supplies the coil spring 8 in alignment, and the parts feeder main body and the separation device are the same as those in the first embodiment, and only the shape of the alignment bowl 33 is partially different. The bowl 33 is provided with three narrow portions 35, 36, and 37 in the middle of the track 34, and a branch track 38 that merges with the track 34 on the outer peripheral side downstream of the second narrow portion 36. Is provided.
[0032]
The top plate 25 of the separation container 8 is mounted so as to protrude above the branch track 38, and the coil spring 8 which is selectively discharged to the charging passage 10 by the air nozzle 16 and separated by the separation container 9 is Returned to the branch track 38. The coil spring 8 returned onto the branch track 38 merges with the coil spring 8 conveyed on the track 34, and the connection track member attached to the third narrow portion 37 as in the first embodiment. The air nozzles 29 arranged in the 30 grooves 31 are sorted and supplied from the outlet 39 of the track 34 to the next process apparatus.
[0033]
In the above-described embodiment, the air nozzle is used as the selection means for the entangled coil spring that is transported by the truck. However, by utilizing the difference in size and weight between the entangled coil spring and the single coil spring, such as the gate plate method described above. Various methods for selecting these can be employed.
[0034]
【The invention's effect】
As described above, the vibratory article supply device of the present invention sorts a composite article that is entangled or overlapped in the middle of the bowl track from a single article, and separates the sorted composite article into a single article by a separation device, Since it is returned to the bowl track on the downstream side of the sorting part, the returned single article does not recombine with the article stored in the bowl bottom, and the articles can be efficiently aligned and supplied alone. In addition, since the second sorting means is provided in the middle of the bowl track on the downstream side of the portion where the separated single article is returned, the article can be supplied to the next step without mixing the composite article at all. it can.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing a vibrating article supply apparatus according to a first embodiment. FIG. 2 is a plan view of FIG. 1. FIG. 3 is a sectional view taken along line III-III in FIG. 2 is a cross-sectional view taken along line IVa-IVa in FIG. 2, b is a cross-sectional view taken along line IVb-IVb in FIG. 5 is a cross-sectional view taken along line VV in FIG. FIG. 7 is an external perspective view of an entangled coil spring. FIG. 8 is a longitudinal sectional view showing a conventional coil spring aligning apparatus. FIG. 9 is another conventional coil spring aligning apparatus. Sectional view showing [signs]
DESCRIPTION OF SYMBOLS 1 Leaf spring 2 Upper vibration body 3 Lower vibration body 4 Anti-vibration rubber 5 Base 6 Bowl 7 Bolt 8 Coil spring 9 Separation container 10 Input passage 11 Strut 12 Tracks 13, 14, 15 Narrow part 16 Air nozzle 17 Outer wall 18 Input pipe 19 Motor 20 Rotating disc 21 Blade 22 Protruding plate 23 Discharge port 24 鍔 25 Top plate 26 Overhang portion 27 Shield plate 28 Air supply port 29 Air nozzle 30 Connection track member 31 Groove 32 Exit 33 Bowl 34 Tracks 35, 36, 37 Narrow portion 38 branch track 39 outlet 41 coil spring 42 vibration generator 43 separation container 44 bowl 45 track 46 hopper 47 blade 48 rotating disk 49 passage 50 top plate 51 gap 52 base 53 boss part 54 separation container 55 vibration isolating rubber 56 lower vibration body 57 Upper vibrator 58 Bowl 59 Track 60 Passage 61 Rolling circle plate 62 inlet 63 top plate 64 gap

Claims (6)

An upper vibrating body and a lower vibrating body, which are vertically opposed to each other, are connected by a leaf spring. Composed of a bowl provided on the inner peripheral surface and a separating device for separating the entangled or overlapped composite article into a single article, a means for sorting the composite article is provided in the middle of the bowl track, and the composite sorted by this sorting means The article is guided from the bowl track to another path, the composite article guided to the other path is separated by the separation device, and the separated single article is separated from the portion where the sorting means is provided in the bowl track on the downstream side. A vibration-type article supply device that is adapted to return to 2. The vibratory article supply according to claim 1, wherein a second sorting means for sorting the composite article and the single article is provided in the middle of the bowl track downstream of the portion where the separated single article is returned. apparatus. The separation device comprises a cylindrical separation container, a rotating disk provided at the bottom thereof, and a blade provided on the upper surface of the rotating disk, and discharges a single article separated at the top of the separation container. The vibratory article supply device according to claim 1, wherein a discharge port is provided. The vibrating article supply device according to claim 3, wherein an upper surface of the rotating disk is formed in a concave shape. The vibratory article supply device according to claim 3 or 4, wherein an air supply port is provided below the rotating disk of the separation container, and air is blown upward from the periphery of the rotating disk. 6. The vibratory article supply apparatus according to claim 1, wherein the article is a coil spring.

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