JPH0848426A - Parts feeding device - Google Patents

Abstract

PURPOSE:To provide a parts feeding device which produces less noise and vibration and low in the equipment cost. CONSTITUTION:In a double acting position of a transverse slider 10, a magnet 17 is moved in vertical direction by a vertical driving body 15 and, after parts P inside a bowl 4 are attracted to take out, the parts are separated automatically from the magnet 17 by a release bar 24 while the transverse slider 10 is reciprocated by a transverse drive body 11, and the fallen parts P are received by ordering chutes 23 and 20 and taken out in ordered state from the bowl 4. Also disordered parts are removed from the ordering chute 20 by a disordered parts eliminating mechanism 27. Then the parts P in the bowl 4 are agitated by the agitating mechanisms 32 and 35. The disordered parts eliminating mechanism 27 and agitating mechanisms 32 and 35 are interconnected to the reciprocating motion of the transverse slider 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a parts supply device for supplying parts such as caulking pins and bolts one by one.

[0002]

2. Description of the Related Art Heretofore, in order to save labor and automate, various parts supply devices have been proposed which are capable of supplying a large number of parts placed in a bowl one by one in an aligned state. ing.

[0003]

However, most of the conventional component feeders continuously rotate or vibrate the entire bowl in order to align and feed the components one by one. Since it was necessary, there was a problem that noise and vibration were generated. In addition, different drive units (cylinders and motors) were required to eliminate misaligned parts from the alignment chute and to evenly distribute the parts in the bowl, resulting in higher equipment costs. There was a problem.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a parts supply device which generates less noise and vibrations and has a low equipment cost.

[0005]

In order to achieve the above object, the present invention is directed to a bowl into which a large number of parts are put, and an outer side of the bowl by a traverse drive member in a forward movement position and a backward movement position. It is supported by a traverse slider reciprocally moved to and from the traverse slider, and is supported by a vertical drive attached to the traverse slider. At the backward movement position of the traverse slider, the parts in the bowl are sucked when moving downward, and the parts that are sucked are moved when moving upward. The magnet that is picked up above the bowl, the separation bar that separates the part picked up by the magnet during the forward movement of the traverse slider, and the part that is cut off by the separation bar and that falls are received and aligned outside the bowl. The present invention provides a component supply device, characterized in that it has an alignment chute for taking out to the inside.

A stopper is provided at a portion of the alignment chute inside the bowl to stop the misaligned parts from being taken out of the bowl, and the stopped misaligned parts are aligned in association with the backward movement of the traverse slider. An unaligned component removal mechanism for removal from the chute can be provided.

Further, a stirring blade for stirring the charged components is provided in the bowl, and a stirring mechanism for intermittently rotating the stirring blade in one direction is provided in association with the reciprocating movement of the traverse slider. You can

[0008]

According to the present invention, at the backward movement position of the traverse slider, the magnet is moved up and down by the up-and-down drive body to pick up the components in the bowl by suction, and then the traverse-drive body moves the traverse slider forward. Then, the part is automatically separated from the magnet by the separation bar. The separated and dropped parts are received by the alignment chute and taken out of the bowl in an aligned state. The parts in the bowl are securely supplied to the alignment chute one by one by attraction by the magnet. Further, since it is not necessary to rotate or vibrate the entire bowl, noise and vibration are small and quiet.

On the other hand, by providing a stopper for misaligned parts,
The misaligned component removing mechanism removes the misaligned component from the alignment chute so that the misaligned component is prevented from being mixed into the alignment chute. Further, by providing a stirring blade and stirring the components in the bowl by the stirring mechanism, the components are evenly leveled and the attraction by the magnet is always ensured.
By linking the non-aligned component removing mechanism and the stirring mechanism with the reciprocating movement of the transverse slider, separate driving bodies are not required, and the equipment cost is reduced.

[0010]

The present invention will be described in detail below with reference to the embodiments shown in the drawings. As shown in FIG. 1 and FIG.
A U-shaped bracket 2 is fixed to the upper surface of the base 1 with bolts 3, and a bowl 4 for putting in components is mounted on the bracket 2.
Is fixed. Inside the bowl 4, a large number of parts (in this example, iron caulking pins made of a magnetic material) P are provided from the upper opening 4a.
Input.

An L-shaped bracket 5 is fixed to the upper surface of the base 1 on the outer side of the bowl 4 with bolts 6, and blocks 8, 8 supporting slide bars 7, 7 are provided at the front of the bracket 5. Secure with bolts 9. The slide bars 7, 7
The transverse slider 10 is movably supported at the forward movement position F and the backward movement position B, and the transverse slider 10 is reciprocated by the transverse cylinder 11. The forward movement position F and the backward movement position B are set at equal intervals with respect to the center position N of the bowl 4. The traverse cylinder 11 may have a structure in which air is supplied from the shaft holes of the slide bars 7 and 7 to reciprocate the traverse slider 10 by a cylinder body and a piston incorporated in the traverse slider 10.

A vertical portion 12a of a base bracket 12 bent in an inverted L shape is fixed to the transverse slider 10 with a bolt 13, and the vertical portion 12 of the base bracket 12 is fixed.
The corner portion between a and the horizontal portion 12b is reinforced by the triangular reinforcing plate 14.

The horizontal portion 12b of the base bracket 12
The upper and lower cylinders 15 are attached in a vertical state, and a magnet 17 is supported on a piston rod 15a of the upper and lower cylinders 15 via a damper 16. And
When the magnet 17 is moved downward by the upper and lower cylinders 15 at the backward movement position B of the traverse slider 10, one part P in the bowl 4 is attracted to the magnet 17 as shown by a chain double-dashed line a in FIG. . After that, when the magnet 17 is moved upward by the upper and lower cylinders 15, as shown by the solid line in FIG.
Can be picked up above.

The damper 16 is an upper and lower cylinder 15
When the magnet 17 is moved downward by, the lower motive power of the upper and lower cylinders 15 after the magnet 17 comes into contact with the component P is absorbed, and the upper and lower cylinders 15 and the bowl 4 are prevented from being damaged.

On the other hand, an alignment chute 20 having a U-shaped cross section is provided, and the alignment chute 20 is fixed to the upper end portion of an L-shaped bracket 22 fixed to the upper surface of the base 1 by bolts 21 in an inclined state. Upper part 20a of the alignment chute 20
Through the side surface opening 4b of the bowl 4 to protrude into the bowl 4 to the vicinity of the forward movement position F. As shown in detail in FIG. 4B, the recess 20c of the alignment chute 20 has an inner width W into which the shaft portion Pa of the component P can be fitted from above.
And the lower surface of the head Pb of the part P is set to the upper edge 20.
By abutting on b and 20b, they are automatically taken out of the bowl 4 through the side opening 4b while sliding under their own weight in an aligned state with the head Pb facing upward. A proximity switch 40 that detects that the part P is full in the alignment chute 20 is provided near the alignment chute 20.

The upper portion 20a of the alignment chute 20 has
A V-shaped component receiving chute 23 as shown in FIGS. 4A and 5 is attached, and the component receiving chute 23 is attached.
When the traverse slider 10 moves forward to the forward movement position F when the magnet 17 is moving upward, the component P attracted by the magnet 17 comes into contact with the upper edge of the magnet 17 to resist the attractive force. The separating bar 24 that is automatically separated is fixed.

The part P which is separated from the magnet 17 by the separating bar 24 and drops (see arrow e in FIG. 5) is received by the part receiving chute 23 and slides on the part receiving chute 23 by its own weight ( (See arrow f in FIG. 5) When reaching the upper portion 20a of the alignment chute 20, the shaft portion Pa
Is downward, it is fitted into the recess 20c of the alignment chute 20 from the shaft portion Pa and slides under its own weight in the aligned state (see FIG. 5).
(See the arrow g in FIG. 3), and is taken out of the bowl 4 through the side opening 4b.

The side opening 4b of the bowl 4 is set to a height H through which the head Pb of the component P can pass, as shown in FIG. Therefore, the shaft portion Pa of the component P that has slid from the component receiving chute 23 to the upper portion 20a of the alignment chute 20.
Is upward, the shaft portion Pa of the misaligned component P1 does not fit into the recess 20c of the alignment chute 20 and the head P
The upper surface of b comes into contact with the upper edges 20b, 20b and slides under its own weight. As a result, the misaligned component P1 is abutted against the inner surface 4c (stopper) of the side opening 4b of the bowl 4, and the removal from the bowl 4 is stopped.

As shown in FIG. 6, the alignment chute 2
A notch 20d is formed on the bottom surface of the upper portion 20a of the 0, and an unaligned component removing lever 27 pivotally attached by a pin 26 is attached to the notch 20d. The removal lever 2
By setting its center of gravity S at a position away from the pin 26, 7 swings by its own weight to the lower swinging position shown by the solid line in FIG. 6 in the free state. In this lower swing position,
There is no hindrance to the sliding of the parts P of the alignment chute 20.

An operation arm 28 protruding upward from the upper opening 4a of the bowl 4 is fixed to the removal lever 27. As shown in FIGS. 1 and 2, a first interlocking arm 29 interlocking with the operation arm 28 is fixed to the upper side of the vertical portion 12a of the base bracket 12 with a bolt 30.
The first interlocking arm 29 extends in the forward direction of the transverse slider 10 and is bent so that the operation arm 28 can be pushed only in the backward direction. Then, at the backward movement position B of the traverse slider 10, the operation arm 28 is pushed in the backward movement direction by the first interlocking arm 29, and the removal lever 27 resists the center of gravity S and is shown by a two-dot chain line in FIG. It is rocked to the rocking position. This upward swing causes the side opening 4b of the bowl 4 to
The non-aligned component P1 that is held against the inner surface (stopper) 4c of the above is flipped up, falls into the bowl 4, and is automatically removed from the alignment chute 20.

The operation arm 28 and the first interlocking arm 29
In the backward movement position B of the transverse slider 10, the upward swing of the removal lever 27 causes the misaligned component P1 to be flipped up, and during the forward movement of the transverse slider 10, the separation bar 24 From magnet 17 to component P
The first interlocking arm 29 is separated from the operation arm 28 before the is separated, and the removal lever 27 is set to the lower swing position by its own weight.

On the other hand, as shown in FIGS. 2 and 3, an arc-shaped stirring blade 32 is arranged at the bottom of the bowl 4.
The rotating shaft 33 of the stirring blade 32 is projected downward from the bottom hole of the bowl 4 and is rotatably supported by the bearing 34 of the bracket 2. A ratchet lever 35 is fitted on the rotary shaft 33 and is attached by a nut 36.

When the ratchet lever 35 rotates in one direction D, the ratchet pawls and the ratchet teeth mesh with each other, so that the stirring blade 32 moves through the rotary shaft 33 to 15-2.
It intermittently rotates in one direction D at an angle θ of 0 degree. When the ratchet lever 35 rotates in the other direction E, the ratchet claw and the ratchet teeth mesh with each other, and only the ratchet lever 35 idles in the other direction E. As the ratchet lever 35, a commercially available product for tightening bolts and nuts can be used.

The vertical portion 12a of the base bracket 12
A second interlocking arm 37 interlocking with the ratchet lever 35 is fixed to the lower side by a bolt 38. The tip of the second interlocking arm 37 is formed in a fork shape that sandwiches both side portions of the ratchet lever 34. Then, when the traverse slider 10 is moved forward, the ratchet lever 35 is rotated in one direction around D to intermittently rotate the stirring blade 32, and when the traverse slider 10 is returned, the ratchet lever 35 is rotated in the other direction E. Rotate idle.

If the component supply device is constructed as described above,
Before the start, the transverse slider 10 is in the backward movement position B, and the magnet 17 of the upper and lower cylinders 15 is in the upward movement position. Further, the removal lever 27 is in the upper swinging position, and the ratchet lever 27 is in the position where the ratchet lever 27 is idled around the other direction E.

Then, as shown in FIG. 7, step S1
When the power is turned on in step S2, the upper and lower cylinders 1
The magnet 17 moves downward by 5 and one component P in the bowl 4 is attracted to the magnet 17. Then, in step S3, the magnet 17 of the upper and lower cylinders 15 moves upward, and one component P attracted by the magnet 17 is picked up above the bowl 4.

Then, in step S4, the traverse cylinder 11 moves the traverse slider 10 from the backward movement position B to the forward movement position F. During the forward movement of the traverse slider 10, the first interlocking arm 29 separates from the operation arm 28, so that the removal lever 27 swings downward to the downward swing position by its own weight. After that, the part P attracted to the magnet 17 comes into contact with the separation bar 24, is separated from the magnet 17 and falls, is received by the part receiving chute 23, and slides on the chute 23 by its own weight, and the upper part of the aligning chute 20. Two
0a.

At this time, the shaft portion Pa of the component P faces downward,
When the shaft portion Pa is fitted into the concave portion 20c of the alignment chute 20, the component P slides on the alignment chute 20 under its own weight and is taken out of the bowl 4 through the side opening 4b of the bowl 4. Conversely, if the shaft portion Pa of the component P is upward and the shaft portion Pa is the unaligned component P1 that does not fit into the recess 20c of the alignment chute 20, the misaligned component P1 slides on the alignment chute 20 by its own weight. Then, it is stopped by abutting against the inner surface (stopper) 4c of the side opening 4b of the bowl 4.

During the forward movement of the traverse slider 10,
Since the second interlocking arm 27 rotates the ratchet lever 35 in the one direction D, the stirring blade 32 is intermittently rotated. The stirring blade 32 continues to be intermittently rotated in one direction D for each forward movement of the traverse slider 10 and automatically stirs the component P in the bowl 4, so that the component P is evenly leveled and attracted by the magnet 17. Will always be certain.

On the other hand, in step S5, the traverse cylinder 1
By 1, the traverse slider 10 is moved back from the forward movement position F to the backward movement position B. Since the first interlocking arm 29 pushes the operation arm 28 during the return movement of the traverse slider 10,
The removal lever 27 swings up to the swing position. Due to this upward swing, the non-aligned component P1 that is held against the inner surface (stopper) 4c of the side surface opening 4b of the bowl 4 is flipped up and falls into the bowl 4 and automatically from the alignment chute 20. To be removed. The removal lever 27 swings up to the up-swing position even when there is no misaligned component P1, but in this case, the removal lever 27 swings idly. While the traverse slider 10 is returning, the second interlocking arm 37 causes the ratchet lever 3 to move.
5 is rotated in the other direction E in the idle direction.

Next, in step S6, the proximity switch 40 detects whether or not the parts P of the alignment chute 20 are full. If NO, the process returns to step S2 and steps S2 to S6 are repeated. , Bowl 4
The parts P inside are continuously taken out of the bowl 4 in an aligned state from the alignment chute 20. In step S6, the proximity switch 40 detects that the parts P of the alignment chute 20 are full and is turned on, and when this on state (YES) continues for 1 second or more, in step S7, steps S2 to S6 are performed.
Process is temporarily stopped and the process returns to step S6. Then, after the parts P of the alignment chute 20 are reduced and the proximity switch 40 is turned off, a stop time of several seconds is set, and the steps S2 to S6 are started again.

As described above, after the parts P in the bowl 4 are adsorbed and picked up one by one by the vertical movement of the magnet 17 by the upper and lower cylinders 15, they are separated during the forward movement of the transverse slider 10 by the transverse cylinder 11. The bar 24 automatically separates and drops the component P from the magnet 17, and the component receiving chute 23 receives the component P. The component P is slid under its own weight to be aligned with the alignment chute 20 so that the component P can be taken out of the bowl 4 in an aligned state. Further, the misaligned part P1 can be automatically removed from the alignment chute 20 by the removal lever 27, and the misaligned part P1 does not mix with the alignment chute 20 outside the bowl 4.

The part P in the bowl 4 is the magnet 1
By the suction by 7, it is possible to surely supply each to the alignment chute 20 one by one. Further, since the entire bowl 4 is neither rotated nor vibrated, noise and vibration are less generated, and the component supply device becomes quieter. Further, the removal lever 27 and the ratchet lever 35 are connected to each other by the interlocking levers 29, 37.
Thus, since it is interlocked with the reciprocating movement of the traverse slider 10, another drive unit (cylinder or motor), its control circuit, etc. are unnecessary, and the equipment cost is reduced.

[0034]

As is apparent from the above description, in the component supply apparatus of the present invention, the magnet is moved up and down by the vertical drive unit to attract and pick up the component in the bowl, and then the transverse drive unit is used to move the transverse slider. The parts are automatically separated from the magnet by the separating bar during the forward movement of the, and the falling parts are received by the alignment chute and taken out of the bowl in an aligned state. Therefore, the parts in the bowl are surely supplied to the alignment chute one by one by attraction by the magnet, and there is no need to rotate or vibrate the entire bowl as in the conventional case.
Quiet with less noise and vibration.

Further, when the misaligned parts are removed from the alignment chute by the misaligned parts removal mechanism, the misaligned parts are prevented from being mixed into the alignment chute. Furthermore, if the stirring mechanism is used to stir the components in the bowl, the components are evenly leveled and the attraction by the magnet is always ensured. Furthermore, if the misaligned component removing mechanism and the stirring mechanism are made to interlock with the reciprocating movement of the traverse slider, separate driving bodies are not required, and the equipment cost is reduced.

[Brief description of drawings]

FIG. 1 is a sectional side view of a main part of a component supply device.

FIG. 2 is a sectional front view of a main part of the apparatus shown in FIG.

FIG. 3A is an exploded perspective view of a stirring mechanism, and FIG. 3B is a plan view of a rotating state of a stirring blade.

FIG. 4A is a perspective view of a component receiving chute,
(B) is a perspective view of the alignment chute

[Fig. 5] Side view of the separation procedure of parts

FIG. 6 is a side view of a procedure for removing misaligned parts.

FIG. 7 is an operation flowchart of the component supply device.

[Explanation of symbols]

4 ... Bowl, 4a ... Top opening, 4c ... Inner surface (stopper), 10 ... Traverse slider, 11 ... Traverse cylinder,
12 ... Base bracket, 15 ... Upper and lower cylinders, 16
… Damper, 17… Magnet, 20… Alignment chute,
23 ... Component receiving chute, 24 ... Separation bar, 27 ...
Removal lever, 28 ... Operation arm, 29 ... First interlocking arm, 32 ... Stirring blade, 33 ... Rotating shaft, 35 ... Ratchet lever, 37 ... Second interlocking arm, P ... Parts, F ... Forward position, B ... Return Moving position, D ... One direction rotation, E ... Other direction rotation.

Claims (3)

[Claims] 1. A bowl into which a large number of parts are loaded, an outer side of the bowl, a traverse slider reciprocally moved between a forward movement position and a backward movement position by a traverse driving body, and a transverse slider attached to the transverse slider. Supported by a vertical drive,
At the backward movement position of the traverse slider, the magnet inside the bowl is attracted when moving downward, and the magnet picking up the attracted component above the bowl when moving upward, and the part picked up by the magnet during the forward movement of the traverse slider. The separation bar that separates and the parts that are separated by the separation bar and fall,
A component supply device, comprising: an alignment chute that is taken out of the bowl in an aligned state. 2. A portion of the alignment chute within the bowl,
A stopper for stopping the removal of the misaligned parts from the bowl is provided, and a misaligned part removing mechanism for removing the stopped misaligned parts from the alignment chute is provided in association with the backward movement of the transverse slider. The component supply device according to claim 1. 3. An agitating blade for agitating the introduced parts is provided in the bowl, and an agitating mechanism for intermittently rotating the agitating blade in one direction is provided in association with the reciprocating movement of the traverse slider. The component supply device according to claim 1 or 2, characterized in that.