JPH10147422A - Part aligning-sending device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To transfer a microscopic part by arranging the direction of the obverse and reverse and the direction of the front and rear by removing a reverse turning part in an obverse-reverse selecting part, and removing a backward turning part in a front-rear selecting part. SOLUTION: A part T which passes through an obverse-reverse selecting part and turns in the obverse direction but is indefinite in the direction of the front and rear, is immediately transferred to a front-rear selecting part. When an obverse turning part T transferred in the arrow direction is transferred in the prescribed front-rear direction by putting a lead Lg on the inner peripheral side, optical fiber sensors 72a and 72b do not simultaneously receive the reflected light from the lead Lg. In this case, air is not ejected, and the part T is passed as it is without removing it (A). When the obverse turning part T is transferred by reversing the direction of the front and rear while putting leads Ld and Ls on the inner peripheral side, the optical fiber sensors 72a and 72b simultaneously receive the reflected light. In this case, a controller instantly ejects air from an air ejection nozzle, and removes the part T (B).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for arranging parts, and more particularly, to a plurality of parts of substantially the same length, each of which has a substantially prismatic shape and extends to both sides in the longitudinal direction of the body. The present invention relates to a component feeding device that transports a component having a leg with the front and back directions and the front and rear directions adjusted.

[0002]

2. Description of the Related Art FIG. 1 shows a mini-transistor T with three leads extended to both sides. FIG. 1A is a perspective view of the mini-transistor T.
Transfer in the opposite direction is not allowed. Three leads Ld, Ls, L coming out of a resin-molded prismatic body B
g corresponds to a drain, a source, and a gate, respectively. The length L of the main body B of the prism portion is 2.9 mm, and the width W is 1.5 m.
m, thickness D = 0.7 mm. The length of each of the leads Ld and Ls is 2.3 mm, and the length of Lg is 2.1 mm. Each of the width w is 0.4 mm and the thickness d is 0.12 mm. Hereinafter, the upper surface of the main body B of the prismatic portion shown in FIG. FIG. 1B is a front view as viewed from the end face side in the transfer direction. The leads Ld, Ls, and Lg are drawn out of the asymmetric position in the thickness direction of the main body B, and the leads L
The front and back surfaces of d, Ls, and Lg are 0.2 m from the surface of the main body B.
m, 0.38 mm from the back of the main body B. Then, as shown in FIG. 1A, the lead Lg is located at the center in the length L direction of the main body B, and the centers of the leads Ld and Ls are respectively located at 0.95 mm from the center of the length L of the main body B. . That is, the lead d and the lead Ls are 1.9 mm away from the center of each. Hereinafter, the mini-transistor T is referred to as a component T.

[0003] Since this part T has a high symmetry and a minute shape, it is necessary to select a part T having the front and back and right and left directions shown in FIG. 1 from among the parts T in a random state. Difficult, discharge capacity up to 200 per minute
It was the limit to make pieces.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has a main body having a substantially prismatic shape, such as a part T, and a main body extending from a position asymmetric in a thickness direction of the main body. A highly symmetrical small part having a plurality of legs of substantially the same length extending to both sides of the part can be transported with the front and back directions and the front and rear directions aligned, and the part has a large discharge capacity. It is an object to provide a device.

[0005]

The above object can be attained by the structure of claim 1. If the solution is illustrated by an embodiment, as shown in FIG. 3, a bowl 21 of a torsional vibration parts feeder is used. The parts T are distributed to the sorting units 60A, 60B, and 60C formed in series on a sorting track 54 formed on the outer peripheral ring 30 on the outer peripheral side and extending almost to the discharge end. The sorting in each of the sorting units 60A, 60B, and 60C is performed by the leads Ld, Ls, and the lead Lg as shown in FIGS.
In the groove-shaped sorting track 54 which transports the component T which is pulled out from the asymmetric position between the front and back of the main body B to both sides in the transport direction, the front-facing component T includes the leads Ld, Ls, and the lead Lg on both sides of the slope. 53, the main body B is brought into contact with the transfer surface of the sorting truck 54 and transferred, and the back-facing component T places the leads Ld, Ls, and leads Lg on the slopes 53 on both sides. They are lifted off the transfer surface and transferred.

Then, each of the sorting units 60A, 60B,
In the front and back sorting section 61 in 60C, the sorting track 54
Is left on the outer peripheral side with approximately 1/2 width, and the slope 53 on the inner peripheral side
The front-facing component T passes without disturbing the posture, while the back-facing component T, which loses support on the inner peripheral side, drops the main body B onto the transfer surface of the sorting truck 54 and is flipped up. Outer side lead Ld, Ls or lead L
g is brought into contact with the sorting attachment 64 to be eliminated.

[0007] The front and rear sorting unit 7 following the front and back sorting unit 61
1, as shown in FIGS. 10 and 11, the lead L moving on the inner peripheral side of the selection track 54 which is also missing
The two optical fiber sensors 72a and 72b are installed adjacent to each other so as to be able to detect d and Ls at the same time, and only when the optical fiber sensors 72a and 72b detect the leads Ld and Ls at the same time, Are instantaneously ejected to eliminate the optical fiber sensors 72a and 72a.
2b is lead Lg or lead Ld, L
When detecting s, the air is allowed to pass through without being blown out.

[0008]

Embodiments of the present invention will be described with reference to the drawings. FIG. 2 is a partially cutaway side view of the component arranging device 1 according to the embodiment for arranging the component T shown in FIG. 1, and FIG. 3 is a plan view thereof. The parts feeding device 1 is constituted by a torsional vibration parts feeder. Referring to FIG. 2, the parts feeding device 1 includes a bowl 21 for containing and feeding the parts T, and a drive unit 11 for applying torsional vibration to the parts. In the drive unit 11, the inclined leaf spring 1 in which the movable cores 12 to which the bottom plate of the bowl 21 is integrally fixed are arranged at equal angular intervals.
It is connected to the lower fixed block 14 by 3.
An electromagnet 1 in which a coil 15 is wound inside a fixed block 14
The electromagnet 16 is opposed to the movable core 12c on the lower surface of the movable block 12 with a slight gap. Further, the fixed block 14 is connected to a base block 18 by a height adjusting ring 17, and the base block 18 is installed on a fixed surface via an anti-vibration rubber 19. When an alternating current of, for example, 250 Hz controlled by an inverter is supplied to the coil 15, clockwise torsional vibration is applied to the bowl 21, and the amplitude at that time is on the order of 1/100 mm.

Referring to FIG. 3, an outer peripheral ring 30 is integrally attached to the bowl 21.
Gate 41, sorting unit 60A, 60
B, 60C, and the discharge unit 80 are attached.
FIG. 4 is an exploded perspective view of the bowl 21 and the outer peripheral ring 30. In FIG. 4, the bowl 21 is in an unprocessed state, and the quick release gate 41 and the sorting units 60A, 60B, 60C are attached to the outer peripheral ring 30. Not shown.

Referring to FIG. 3, a large number of components T are accommodated in a bottom surface 22 of the bowl 21, and a flat track 24 having a starting point 24 s at a peripheral portion of the bottom surface 22 is formed along a peripheral wall 23 of the bowl 21. The component T is provided in a spiral manner, and serves as a transfer path for the component T. The track 24
Is inclined slightly downward toward the outside of the diameter of the bowl 21, and the part T is formed by the inclination of the track 24 and the component of the transfer force of the received torsional vibration toward the outside of the peripheral wall 2 due to the outward component.
3 and transferred.

At the top of the track 24, the wiper 25 fixes the base to the outer peripheral surface of the bowl 21 and makes the tip obliquely cross the track 24 with the tip directed downstream.
, That is, at a height level at which a reclined portion T that does not overlap can pass thereunder. Therefore, among the components T that are transported in a stacked manner, the lowermost component T is transported under the wiper 25,
The parts T of the layer or higher are broken by being prevented from being transferred by the wiper 25, and are guided by the wiper 25 and spread to the inner peripheral side of the track 24.

On the downstream side of the wiper 25, a flat track 44 is connected to the downstream end of the track 24 via the step 26. The flat track 44 divides the component T to be transferred into approximately three equal parts. Units 60A, 60B,
Guide grooves 42A, 42B, 42C for distribution to 60C are formed, which will be described later.

At the downstream end of the truck 24, the bottom surface 2
FIG. 5 is a cross-sectional view taken along the line [5]-[5] in FIG. 3, provided with a fast-moving gate 41 for extracting the part T from 2. Is shown in That is, the column 47 is fixed with the bolt 47b from below on the outer peripheral ring 30 fixed to the lower surface of the peripheral portion of the bowl 21 with the bolt 30b, and one end of the rotating plate 45 is gripped by the shaft 43 set on the column 47. A gate block 48 having a circular arc surface protruding toward the track 24 is attached to the other end of the rotating plate 45 by screws 48b. When the component T on the bottom surface 22 is to be extracted, the component T transferred from the truck 24 flows out through the extraction path 49 by loosening the knob screw 46 and rotating the gate block 48 counterclockwise. . The arc-shaped surface of the gate block 48 protruding toward the track 24 has a role of expanding the component T to the inner peripheral side in a normal state.

FIG. 3 is a cross-sectional view taken along the line [6]-[6] in FIG. 3 of the flat track 44 connected to the downstream end of the track 24 via the step 26 on the downstream side of the gate 41. 6, the part T is roughly divided into three equal parts, each of which is a sorting unit 60A, 60B, 6
In order to guide to 0C, guide grooves 42A, 42B, and 42C are formed with a depth of 0.5 mm and a bottom width of 1.6 m and open upward.

Returning to FIG. 3, the component T distributed to the guide groove 42A is guided from the missing portion of the peripheral wall 23 to the outer peripheral side of the bowl 21. At this point, an inner peripheral side of the outer peripheral ring 30 is formed with a slope 53A facing downward in a radially outward direction of the bowl 21 and having an inclination angle of 20 degrees with respect to a horizontal plane, and an outer peripheral edge of the slope 53A has a slope 53A. A sorting track 54 in which a part T whose length L is oriented in the transport direction among the parts T that slide down in a single row and a single layer is formed over substantially the entire length of the outer peripheral ring 30. , Sorting units 60A, 60B, 60C having the same configuration are installed in series. Then, only the parts whose length L is directed in the transfer direction fit into the sorting track 54 with the front and back indeterminately transferred, and the parts T that could not enter the sorting track 54 are formed on the outer peripheral side of the slope 53A. It falls into the first recovery groove 31. The first recovery groove 31 is also formed over substantially the entire length of the outer peripheral ring 30 similarly to the sorting track 54.

As shown in FIG. 9A to be described later, the sorting track 54 has a bottom width E of 1.6 mm and a depth F of 0.4 mm. Therefore, as shown in FIG. 9A, the face-up part T whose length L is oriented in the transfer direction makes the main body B contact the transfer surface of the sorting track 54 and the leads Ld, Ls, and Lg. Is transported close to the slopes 53 on both sides of the sorting truck 54. On the other hand, even if the component T has the length L oriented in the transport direction, the component T which faces backward transports the leads Ld, Ls and Lg on the slopes 53 on both sides of the sorting track 54. However, since the distance from the surface S to the leads Ld, Ls, Lg is 0.2 mm, the main body B is transported in a state of being lifted from the transport surface of the sorting truck 54. And
The parts T are sorted by the sorting unit 60A.

The guide groove 42B of the flat track 44 guides the components T distributed to the guide groove 42B to the outer peripheral side of the bowl 21 from the missing portion of the peripheral wall 23 on the downstream side of the sorting unit 60A. At this point, a slope 53B similar to that shown in FIG. 6 is formed, and the sorting track 54 from the upstream side and the first recovery groove 31 continue. And
Among the components T sliding down the slope 53B, the components T whose lengths L are directed in the transport direction are joined to the sorting truck 54 and sorted in the sorting unit 60B. The component T that could not enter the sorting truck 54 falls into the first recovery groove 31. Similarly, the guide groove 42C is provided on the downstream side of the sorting unit 60B so that the component T distributed to the guide groove 42C is
Of the bowl 21 to the outer peripheral side of the bowl 21. At this point, a slope 53C similar to that shown in FIG. 6 is formed.
The sorting track 54 from the upstream side and the first recovery groove 31 continue. Then, among the parts T sliding down the slope 53C, the part T whose length L is directed in the transport direction is the sorting truck 5.
4 and are sorted in the sorting unit 60C. The component T that could not enter the sorting truck 54 falls into the first recovery groove 31.

As described above, the parts T distributed to the guide grooves 42A are transferred to the sorting track 54 and sorted in the sorting unit 60A. The sorting unit 60A has the same construction as the sorting units 60B and 60C. Therefore, hereinafter, the sorting unit 60A will be described without the suffix, and the description of the sorting units 60B and 60C will be omitted.

The sorting unit 60 comprises a front and back sorting unit 61 for sorting the front and back of the component T, and a front and rear sorting unit 71 installed close to the downstream side for sorting the front and rear of the component T. . The front and back sorting unit 61 also refers to FIG. 7, which is a cross-sectional view taken along the line [7]-[7] in FIG.
The slope 53A of the outer peripheral ring 30 fixed to the bowl 21 is cut in such a manner that the width of the sorting track 54 is reduced to almost half and left on the outer peripheral side, and the second recovery groove 32 is formed in a circular arc concentric with the first recovery groove 31. Is formed. In this case, the lead L
g, the center of gravity of the component T is narrowed regardless of which of the leads Ld and Ls is on the inner circumferential side.
4 above. In addition, a reflux tunnel 39A is provided by drilling the peripheral wall 23 of the bowl 21 from the downstream end of the second recovery groove 32, and the component T that has fallen into the second recovery groove 32 is returned into the bowl 21. ing. Further, a mounting block 62 is fixed to the outer side of the outer peripheral wall 33 of the outer peripheral ring 30 by bolts 62b,
The sorting attachment 64 is fixed to the support 63 attached by the above with a bolt 64b, and hangs down to the outer peripheral side of the sorting track 54. As will be described later, the sorting truck 54
The parts T that are transported face down are the leads Ld, L
Any one of s and Lg is prevented from being transferred by the sorting attachment 64, and falls into the second recovery groove 32,
Be eliminated.

The front / rear selection unit 71 allows the component T transferred on the selection track 54 to pass the lead Lg on the inner peripheral side as it is and to pass the leads Ld and Ls on the inner peripheral side. Is excluded, but FIG.
FIG. 1 is a sectional view taken along the line [10]-[10] in FIG.
0, a sensor support 74 is mounted on a mounting block 62 that is common to the upstream-side front / rear sorting unit 61 with a bolt 74b with an air ejection block 73 interposed therebetween.
Two optical fiber sensors 72a and 72b are provided adjacent to the tip of the sensor support 74, and the position in the radial direction of the bowl 21 is slightly shifted. It is fixed and directed to the lead Lg or the leads Ld and Ls on the inner peripheral side of the component T to be transferred on the sorting track 54.

The optical fiber sensors 72a, 72b
In each of the drawings, a light emitting element and a light receiving element are built in at the base (not shown), and light passing through the fiber from the light emitting element is reflected by leads Ld, Ls, and Lg, and the reflected light returns along the same path and is received. This type detects the presence of the leads Ld, Ls, and Lg by receiving light from the element.

In the air ejection block 73, a joint 76 of a compressed air pipe is inserted and screwed into a hole 77 drilled from the outer peripheral side, and an air ejection nozzle 78 is inserted from the tip of the hole 77.
Are directed to the part T to be transferred on the sorting truck 54. Then, air is blown out only when the components T having the leads Ld and Ls on the inner peripheral side are simultaneously detected by the optical fiber sensors 72a and 72b, and the components T are blown out into the second recovery groove 32 to be eliminated. It has become.

As described above, the sorting units 60B and 60C installed on the downstream side of the sorting unit 60A have exactly the same configuration as the sorting unit 60A, and a description thereof will be omitted.

FIG. 12 is a sectional view taken on the downstream side of the sorting unit 60B, taken along the line [12]-[12] in FIG.
In addition to the first recovery groove 31, a second recovery groove 32B attached to the sorting unit 60B, a return tunnel 39B, and a guide groove 42C are shown in the flat track 44 of the bowl 21. FIG. 13 is a cross-sectional view taken along the line [13]-[13] in FIG. 3 on the downstream side of the sorting unit 60C.
Similarly, in addition to the first recovery groove 31, a second recovery groove 32C attached to the sorting unit 60B and a return tunnel 39C are shown. At this point, there is no flat track 44 for distributing the part T.

Returning to FIG. 3, the discharge section 80 is located downstream of the section indicated by [13]-[13], and a horizontal discharge track 84 is connected to the sorting track 54. That is, after a slope 53D inclined downward by 20 degrees toward the outside of the diameter of the bowl 21, an intermediate block 81 and a plane block 82 are attached, and a discharge track 84 is formed. The part T is leveled and transferred. Is done. The plane block 82 is provided with an exclusion hole 85, and the air on the outer peripheral side is directly above the discharge track 84 with reference to FIG. The air is always jetted from the jet nozzle 88, and the stacked components T are discharged to the discharge hole 85. Further, the first recovery groove 31 is further dug down to form a pit 38, and furthermore, the return tunnel 3
It communicates with the inside of the bowl 21 via 9D. The part T removed from the above-described removal hole 85 falls into the return tunnel 39D.

Referring to FIG. 14, a holding plate 89 for preventing the part T from disturbing its posture is attached to the discharge truck 84 downstream of the plane block 82. FIG.
4 has a joint 87 in which the above-described air ejection nozzle 88 is attached to the outer peripheral wall 33 of the outer peripheral ring 30, and a compressed air pipe 86.
It is shown with

As shown in FIG. 2, a 1/8 arc discharge chute 91 is connected to the downstream end of the discharge track 84. This discharge chute 91 corresponds to [15] in FIG.
-[15] Referring to FIG. 15 which is a cross-sectional view in the line direction, a cover block 92 having an inverted L-shaped cross section is attached to the downstream end of the outer peripheral ring 30 with bolts 92b. A track block 93 is fixed with screws 93b so that the peripheral edge portion 92a is used as a holding member, and a track 94 is formed on the track block 93.

The component feeder 1 of the embodiment is configured as described above, and its operation will be described next.

2 and 3, a large number of components T are accommodated in a bowl 21 and a coil 15 of the driving unit 11 is provided.
Is supplied with an alternating current and clockwise torsional vibration is applied to the bowl 21. In addition, each sorting unit 60
Fiber optic sensor 72 at A, 60B, 60C
It is assumed that a, 72b and the air ejection nozzle 78 are operating in conjunction with each other, and that air is always ejected from the air ejection nozzle 88.

Referring to FIG. 3, bottom surface 22 in bowl 21
The part T in a random state above receives the torsional vibration and is moved in the direction indicated by the arrow m while being moved to the peripheral part. Then, track 2 is left undefined from the starting point 24s.
4 and is transported in contact with the peripheral wall 23. The component T spirally moves up the track 24 to reach the wiper 25. Of the parts T that are transported in a stack, the lowermost part T in contact with the truck 24 is the wiper 2 as it is.
5, and the upper part T is transferred to the wiper 2
The transfer is hindered by 5 and the overlap is broken,
It is guided by the wiper 25 and is spread to the inner peripheral side of the track 24. Further, the part T reaches the quick-start gate 41 also shown in FIG. 5, but in the normal state, the quick-start gate 41 is kept closed, and the part T is moved to the track 24 by the arc surface convex toward the inner peripheral side of the gate block 48. It is spread and moved to the inner circumference side of.

On the downstream side of the gate 41, the component T is transferred from the track 24 to the flat track 44 connected via the step 26. Referring to FIG. The guide grooves 42A, 42B, and 42C formed in the first and second sections are transported after being substantially equally divided into three. Among them, the component T distributed to the guide groove 42A
Is moved from the missing portion of the peripheral wall 23 of the bowl 21 to the outer peripheral side of the bowl 21 and slides down the slope 53A formed on the outer peripheral ring 30. However, a groove-shaped sorting track 54 formed at the lower end edge thereof is formed. As shown in FIG. 9, the component T fits in the length L in the transfer direction, is transferred with the front and back, transfer indefinite, and is sorted by the sorting unit 60A. On the other hand, the component T that cannot be fitted into the sorting truck 54 falls from the slope 53A to the first recovery groove 31 and is transferred therefrom. It is returned into the bowl 21.

The component T distributed to the guide groove 42B on the flat track 44 is transferred to the downstream side as it is, and slides down the slope 53B from a position corresponding to a position between the sorting unit 60A and the sorting unit 60B. The components T that are merged into the sorting unit 60B and that are not merged into the sorting track 54 fall into the first recovery groove 31, but the situation is the same as that in the guide groove 42A. Also, the components T distributed to the guide grooves 42C are similarly guided to the outer peripheral side from a portion corresponding to between the sorting unit 60B and the sorting unit 60C, and the components T joined to the sorting track 54 are sorted by the sorting unit 60C. Is done.

In the sorting unit 60A, the sorting unit 6 is shared by the sorting units 60A, 60B and 60C.
9 and 9 which are enlarged views of a part of FIG.
Referring to FIG. 8, which is a partially broken plan view in the [8]-[8] line direction in FIG. 9, the front-side component T whose length L is directed in the transport direction is, as shown in FIG. The main body B is brought into contact with the transfer surface of the sorting track 54, and the leads Ld, L
s and the lead Lg are transported on the slopes 53 on both sides of the sorting track 54. Therefore, even in the front and back sorting section 61 in which the slope 53 is cut so that the width of the sorting track 54 is reduced to approximately と し て and left on the outer peripheral side, the torsional vibration is received, and the transfer force of the sorting track 54 is directed outward in the diameter of the bowl 21. In addition to the component, that is, the centrifugal force, the component T receiving gravity is transferred in contact with the sorting track 54 without losing the posture, and therefore, the lead Ld or the lead Lg does not contact the sorting attachment 64.

On the other hand, even if the component T whose length L is directed in the transport direction, the component T which faces backward has the lead L
The d, Ls, and the lead Lg are transported by being placed on the slopes 53 on both sides of the sorting truck 54, and the main body B is transported in a state of being lifted from the transport surface of the sorting truck 54. Therefore, when the support of the lead Ld, Ls, or the lead Lg on the inner peripheral side reaching the front / back selection part 61 is lost, as shown by a dashed line part T in FIG. 9B,
The main body B is dropped onto the sorting track 54, and the lead Lg or the leads Ld and Ls on the outer peripheral side are flipped up. Then, as shown by the solid line, it is guided to the inner peripheral side by the sorting attachment 64 like the component T, and is removed to the second recovery groove 32 below. As shown in FIG. 8, the sorting attachment 64 is tapered on the upstream side and is close to the sorting track 54 side.
g or the component T in contact with the leads Ld and Ls, and the component T indicated by a dashed line in FIG. 8 in which the lead Ls is brought into contact with the selection attachment 64 are guided to the inner peripheral side and fall into the second recovery groove 32 below. I do. On the other hand, the front part T shown by the solid line is transferred as it is. In this manner, the sorting of the front and back of the component T is performed.

The part T which has passed through the front / back sorting section 61 but has an unfixed front / rear direction is immediately sent to the front / rear sorting section 7.
Transferred to 1. Sorting unit 60A, 60B, 60C
[11] in FIG. 10 showing a front / rear selection unit 71 common to
Referring to FIGS. 11A and 11B, which are enlarged plan views in the direction indicated by the line [11], close to the inner peripheral side of the sorting track 54 shown on the inner peripheral side (the upper side in the drawing) of the selecting truck 54. Optical fiber sensor 72a indicated by a dashed line
72b irradiates from above the paper surface. As shown in FIG. 11A, when the front component T transferred in the direction of the arrow is transferred in a predetermined front and rear direction with the lead Lg on the inner peripheral side, the optical fiber sensors 72a and 72b Although the lead Lg is detected by receiving the reflected light from Lg, if one of the optical fiber sensors 72a and 72b detects the lead Lg, the other does not detect the lead Lg, and both of them detect the reflected light simultaneously. Will not be received. In such a case, since the controller (not shown) to which the optical fiber sensors 72a and 72b are connected does not eject air from the air ejection nozzle 78 shown in FIG. 10, the component T passes without being removed.

On the other hand, as shown in FIG.
The front part T transferred in the direction of the arrow is the lead Ld,
When Ls is set to the inner circumference side and transported with the front and rear directions reversed, first, only the optical fiber sensor 72a receives the reflected light from the lead Ls, and subsequently, the optical fiber sensor 72b receives the reflected light from the lead Ls. The light is received, and at the same time, the optical fiber sensor 72a receives the reflected light from the lead Ld. Thus, the optical fiber sensors 72a, 7
In the case where the controller 2b receives the reflected light simultaneously, the controller instantaneously ejects the air from the air ejection nozzle 78. Therefore, in FIG. 11B, the part T whose front-rear direction is indicated by the solid line is indicated by the one-dot chain line. And is removed to the second recovery groove 32. And the front and back sorting section 61 on the upstream side
Then, together with the component T removed to the second recovery groove 32, the component T is returned to the bowl 21 from the downstream side through the return tunnel 39 (return tunnel 39A in the sorting unit 60A).

The above is a description of the components T distributed to the guide grooves 42A.
Is sorted by the sorting unit 60A, but the parts T distributed to the guide grooves 42B are separated by the sorting unit 60B.
Thus, the components T distributed to the guide grooves 42C are sorted out in exactly the same manner by the sorting unit 60C. And sorting unit 6
The part T removed at 0B passes through the return tunnel 39B shown in FIGS. 3 and 12, and the part T removed at the sorting unit 60C passes through the return tunnel 39C shown in FIGS. Returned to

The component T that has passed through the sorting unit 60C is transferred from the sorting truck 54 to a discharge truck 84 downstream of the intermediate block 81, and is transferred from the inclined position to the horizontal position. Since the plane block 82 is provided with an exclusion hole 85 and air is always jetted from the air jet nozzle 88 shown in FIG.
9, there is a part T that is hooked on or an overlapping part T.
And is returned into the bowl 21.

As shown in FIG. 14, a holding plate 89 is attached to the discharge truck 84 downstream of the flat block 82 to form a tunnel, so that the parts T are transferred without disturbing the posture. Later, 1 shown in FIG. 2 and FIG.
In the discharge chute 91 having an arc shape of / 8, the upper part is suppressed by the outer peripheral edge portion 92a of the cover block 92, and the track 9
4 is transferred and the front and back and front and rear parts T
Is discharged from its downstream end.

Although the parts feeder 1 of the present embodiment is constructed and operates as described above, it goes without saying that the present invention is not limited to this, and various modifications are possible based on the technical idea of the present invention. It is.

For example, in the present embodiment, the lead Ld, Ls, and Lg of the component T are drawn out of the asymmetrical position in the thickness direction in the front and back sorting unit 61, and the lead is used by utilizing the shape difference. When Ld, Ls, or Lg is flipped up and contacts the sorting attachment 64,
Although the front and back sides are selected in the case where they are not flipped up and do not touch the selection attachment 64, an optical fiber sensor may be used instead of the selection attachment 64. FIG. 16 shows a front / back selection unit 6 as a modification of the front / back selection unit 61 of the embodiment.
It is a longitudinal cross-sectional view of 1 '. The mounting plate 62 is fixed to the outer peripheral wall 33 of the outer ring 30 fixed to the bowl 21 with bolts 62b.
The support plate 104 has a bolt 10
4b. And this support plate 104
The optical fiber sensor 101 is fitted into a notch at the end of the optical fiber sensor, and is attached to the optical fiber sensor 101 from outside thereof by holding down with a holding plate 103 together with a bolt 103b. A lens is built in the lens barrel 102 at the distal end of the optical fiber sensor 101, and the light from the light emitting element is narrowed to irradiate the leads Ld, Ls, or Lg on the outer peripheral side of the component T. ing. The optical axis p of the irradiation light is set at an angle of 85 degrees between the lead Ld, Ls, and Lg when the front-facing component T is being transferred.

A joint 106 to which the compressed air pipe 105 is connected has a hole 107 in a support plate 109 fixed to the support plate 105 of the optical fiber sensor 101 with a bolt 109b.
An air ejection nozzle 108 is attached to the tip of the hole 107 toward the component T passing below. When the back-facing component T is detected by the optical fiber sensor 101, a controller (not shown) to which the detection signal is input is sent to the air ejection nozzle 108.
, The air is instantaneously blown out of the device, and the part T facing the air is eliminated. Note that the lens barrel 102 of the optical fiber sensor 101 is inserted through a hollow hole 109h of the support plate 109.

Referring to FIG. 17, which is an enlarged view of the portion shown by b in FIG. 16, the operation of the front-side component T in the sorting track 54 having an almost half width is shown in FIG.
As shown in A, the main body B is transported by contacting the sorting track 54 without disturbing the posture on the upstream side, and the irradiation light of the optical axis p from the optical fiber sensor 101 is reflected in the direction of the internal angle 30 degrees. . Since the leads Ld, Ls, Lg are rough surfaces, some of the reflected light is
1, but the intensity is small.

On the other hand, the main body B is separated from the sorting track 54
The back-facing component T that is transferred floating from the
As shown in FIG. 3B, in the sorting track 54 having a width of about 1/2, the inner-side lead Lg or the lead L
When the support of d and Ls is lost, the main body B is dropped onto the sorting track 54, and the leads Ld, Ls or L on the outer peripheral side are dropped.
Flush g. Therefore, the irradiation light of the optical axis p from the optical fiber sensor 101 is reflected in the direction of the inner angle of 10 degrees, and the intensity of the reflected light received by the optical fiber sensor 101 becomes large. . Then, the controller to which the detection signal is input causes air to be instantaneously ejected from the air ejection nozzle 108 to eliminate the component T facing backward. In this way, the front part T and the back part T are sorted out. In addition, it is also possible to select the front and back sides even if the flipped-up legs block the horizontal optical axis of the light blocking type optical sensor in which the light emitting element and the light receiving element face each other.

In this embodiment, three sorting units such as the sorting units 60A, 60B, and 60C are provided. However, if necessary, four or more sorting units may be provided. Is also good.

Further, in the present embodiment, of the components T transferred to the front / rear sorting unit 71, the components T whose reflected light is received simultaneously by the optical fiber sensors 72a and 72b are excluded. The selection of the component T having the opposite direction to the front and rear direction in the embodiment can be easily performed by adjusting the controllers of the optical fiber sensors 72a and 72b.

Further, in the present embodiment, the description has been given of the selection of the component T having one lead Lg on one side and two leads Ld and Ls on the other side. For example, a sorting device can be prepared for a part having two legs, for example, a part having two legs on one side and three legs on the other side. In addition, even if the parts have the same number of legs on both sides, if the difference in the shape of the legs on both sides is detected by the optical fiber sensor, the part feeding device of the present invention can be applied.

[0048]

The present invention is embodied in the form described above, and has the following effects.

The component feeder 1 according to the present invention, which transports the component T with its front and back and front and rear directions adjusted, includes a sorting truck 54 extending almost to the discharge end on the outer peripheral side of the bowl 21 of the torsional vibration parts feeder. The sorting units 60A, 60B, and 60C are arranged in series on the sorting track 54. The parts T transferred from the inside of the bowl 21 have guide grooves 42A, 42B formed in the flat track 44,
42C, the part T distributed to the guide groove 42A is divided into the sorting unit 60A, and the part T distributed to the guide groove 42B is divided into the sorting unit 60B.
The components T distributed to the guide groove 42C are transported to the sorting unit 60C to be sorted, and finally, the components T having the predetermined front-to-back and front-to-back directions from the discharge end are discharged in a single row and a single layer. So that each sorting unit 60A,
Since a limited number of parts are supplied to 60B and 60C, the sorting accuracy is kept high, and they are merged and discharged, so that the sorting number per unit time as a whole becomes large.

Each of the sorting units 60A, 60B, 6
The front and back sorting section 61 of 0C (omit the suffix) utilizes the fact that the leads Ld, Ls, and Lg of the component T are pulled out from the asymmetric position between the front and back of the main body B to both sides in the transport direction. Then, 1/1 /
In the sorting truck 54 having the two widths, the main body B is brought into contact with the transfer surface of the sorting truck 54, and the face-up component T transferred is transferred as it is, and the main body B is sorted into the sorting truck 5
Back-facing component T that is transferred from the transfer surface of No. 4
Drops the body B onto the transfer surface of the sorting track 54, and sorts the front and back directions by utilizing the fact that the leads Ld, Ls, or Lg on the outer peripheral side are flipped up. Further, in the front / back selection section 71 following the front / back selection section 61, the transfer direction is selected by ejecting air only when the two optical fiber sensors 72a, 72b arranged side by side detect the leads Ld, Ls at the same time. ing.

Accordingly, like the part T, the main body is substantially prismatic, and has a plurality of legs of substantially the same length extending from the position asymmetrical in the thickness direction of the main body to both sides in the longitudinal direction of the main body. With respect to minute parts having strong symmetry, the manufacturing cost of the sorting mechanism for adjusting the front and back directions and the front and rear directions can be reduced.

[Brief description of the drawings]

FIG. 1 shows a part to be reconciled according to an embodiment;
Is a perspective view and B is a front view.

FIG. 2 is a partially cutaway side view of the component feeding device according to the embodiment.

FIG. 3 is a plan view of the same device.

FIG. 4 is an exploded perspective view of a raw bowl and an outer peripheral ring.

FIG. 5 is a sectional view taken along line [5]-[5] in FIG. 3;

FIG. 6 is a sectional view taken along the line [6]-[6] in FIG.

FIG. 7 is a sectional view taken along the line [7]-[7] in FIG.

8 is a partially broken plan view taken along the line [8]-[8] in FIG.

FIG. 9 is an enlarged view of a portion indicated by a in FIG.

FIG. 10 is a sectional view taken along the line [10]-[10] in FIG. 3;

11 is a plan view taken along the line [11]-[11] in FIG.

12 is a sectional view taken along the line [12]-[12] in FIG.

FIG. 13 is a sectional view taken along the line [13]-[13] in FIG.

14 is a sectional view taken along the line [14]-[14] in FIG.

15 is a sectional view taken along the line [15]-[15] in FIG.

FIG. 16 is a vertical cross-sectional view of a front and back selection unit according to a modification.

FIG. 17 is an enlarged view of a portion indicated by b in FIG.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 component feeding device 11 drive unit 21 bowl 24 track 25 wiper 30 outer ring 31 first recovery groove 32 second recovery groove 39 return tunnel 41 rapid exit gate 42A guide groove 42B guide groove 42C guide groove 53 slope 53 sorting track 60A sorting Unit 60B Sorting unit 60C Sorting unit 61 Front and back sorting unit 64 Sorting attachment 71 Front and rear sorting unit 72a Optical fiber sensor 72b Optical fiber sensor 78 Air ejection nozzle 80 Discharge unit 84 Discharge truck 85 Exclusion hole 86 Compressed air piping 88 Air ejection nozzle 89 Suppression plate 91 Discharge shoot

Claims (3)

[Claims] 1. A body having a substantially prismatic shape, an asymmetric number or shape having substantially the same length from a position asymmetrical in the thickness direction of the body to both sides in a longitudinal direction of the body in a transfer direction. A part feeder comprising a torsional vibrating parts feeder for transferring a part having the legs of the torsional front and back and the front and rear directions thereof, wherein the bowl extends along an outer peripheral edge of a bowl of the torsional vibrating parts feeder. A groove-shaped sorting track having a width for transferring the parts facing in the transfer direction in a single row is formed on a flat portion provided at a slightly downward inclination toward the outside of the diameter, and the depth thereof is set to be the face-up depth. The parts are moved by bringing the legs extending to the both sides close to the flat portions on the outer peripheral side and the inner peripheral side of the sorting truck, and the main body abuts on the transfer surface of the sorting truck and is transferred. Both sides An extending leg is set to be brought into contact with the flat portion on the outer peripheral side and the inner peripheral side of the sorting truck so that the main body is lifted from the transfer surface of the sorting truck and transferred, and A sorting unit comprising a front and back sorting unit for sorting the front and back of the component and a front and rear sorting unit for sorting the front and rear of the component is provided.In the front and back sorting unit, the sorting truck has a width of the sorting track. The legs on the outer periphery, which are narrowed so that the inner peripheral portion is cut off together with the flat portion on the inner peripheral side, and thereby the back-facing parts drop the inner peripheral side of the main body to the transfer surface of the sorting truck and are flipped up. An obstruction member for obstructing and eliminating the transfer of the front or back is selected, or a front and back selection optical sensor for detecting the leg on the outer peripheral side to be flipped up, and the front and back selection optical sensor is facing backward There is provided a front and back sorting air jetting means for removing the face-down component when the component is detected.Furthermore, in the front / rear sorting unit, the front-side sorting of the front-facing component to be transferred to the sorting truck is performed. A front-rear selection optical sensor capable of detecting the front-rear direction of the component by distinguishing one leg on one side or the other leg on the other side, and the front-rear selection optical sensor is a component facing the rear. And a front / rear selection air jetting means for removing the rearward component when detecting the component, and the rearward facing component in the front / backside sorting unit among the components transferred from the bowl is provided. By being eliminated, the rearward facing parts are eliminated in the front / rear sorting section, so that only the parts having the front and back and the front and rear in a predetermined direction are discharged from the downstream end of the sorting truck. That parts Seioku apparatus. 2. A plurality of said sorting units N ₁ , N ₂ , N ₃ ,... Are provided in series on said sorting track formed on the outer peripheral edge of said torsional vibration parts feeder, and said parts are parts n _1, part n _2, parts n _3, ... to be substantially equal, the component n ₁ is supplied from the sorting track upstream of the sorting unit n ₁ to the sorting unit n _1, the component n after the front and rear direction and the front-rear direction it has been performed screening to exclude parts n ₁ not the predetermined street from among _1, are transferred to the sorting unit n ₂ by the sorting track, the component n ₂ is the sorting unit the screened is supplied is merged into the track to the sorting unit N _2, the transfer of the said sorting unit N ₃ by after the sorting tracks similar sorting is performed between N ₁ and the sorting unit N ₂ The part n ₃ is joined to the sorting truck between the sorting unit N ₂ and the sorting unit N ₃ and supplied to the sorting unit N _3, and the parts are sorted in the same manner. A plurality of said sorting units N ₁ , N ₂ ,
By being performed simultaneously by N ₃ , ...
Since a limited number of the parts are supplied to each of the sorting units N ₁ , N ₂ , N ₃ ,..., The sorting accuracy is maintained high, and the number of sortings per unit time as a whole is large. The component feeding device according to claim 1. 3. The sorting truck and the plurality of sorting units N ₁ , N ₂ , N ₃ ,... Are formed and installed on an outer peripheral ring attached to an outer peripheral side of a bowl of the torsional vibrating parts feeder. The part feeding device according to claim 2.