JP3141236B2 - Component supply method and device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component supply method and an apparatus for aligning and feeding a chip-shaped component to a mounting machine.

[0002]

2. Description of the Related Art Generally, when mounting chip-shaped components on a printed wiring board, one chip-shaped component (work) is picked up one by one by vacuum suction or the like, and is placed on the printed wiring board for mounting. The method has been taken. In this method, when chucking chip-shaped components by vacuum suction, etc., their orientations are aligned, how accurately they can be picked up, and how they can be placed on a printed wiring board greatly affects productivity. become. Therefore, a method of so-called "parts handling" is used, in which components are once aligned and supplied before being picked up by vacuum suction with an air chuck or the like.

[0003] The component supply method is as follows: (1) A box-shaped magazine feeder in which components are pre-arranged and stored in a magazine and are sequentially taken out one by one, and holes and grooves are provided and arranged one by one. Parts trays and parts to be taken out are arranged in advance on a medium such as a tape, and this is wound and supplied in a coil shape. An arrangement supply method using a tape, a coil, a hoop type or the like, and (2) random stacking There is a method of automatically supplying parts by arranging and supplying bulk parts.

[0004] There are various types of automatic parts feeding method in bulk, and one of them is to provide a cylinder suitable for the part in a hopper and reciprocate the hopper or the cylinder up and down. Are structured to be sequentially taken out into a cylinder. This is described, for example, in
See, for example, US Pat. In such a structure, the cylinder is formed in a pin shape and has a narrow shape suitable for the component, so that the reciprocating movement of the cylinder does not perform stirring in the hopper, and a bridge phenomenon occurs to cause the component to be bridged. It is easy to cause clogging and stable supply is difficult.

[0005]

As described above, according to the conventional method for automatically supplying parts in bulk, a bridging phenomenon occurs and the parts are clogged, so that stable supply is difficult.
Therefore, the air is blown into the hopper to forcibly agitate, or the vibration is applied to break the bridge to eliminate component clogging.
Blow structure and vibrator are required, the structure becomes large,
There is also a problem that the structure is complicated. further,
When the hopper or the cylinder is moved up and down in a state where the components are clogged, excessive force is applied to the components, and the components are often scratched and damaged.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide a component supply method and a component supply method capable of reliably supplying a chip-shaped work with a simple configuration in a uniform direction. It is to provide a device. Further, other objects will be clarified sequentially in the contents described below.

[0007]

According to the present invention, there is provided a component supply apparatus for aligning and feeding a chip-shaped work to be supplied thereto and guiding the work to a mounting machine. A first small chamber having an opening to be thrown, and a depth substantially corresponding to a minimum thickness of the work, provided below and communicated with the first small chamber, and the work is directed in a predetermined direction. A second small chamber for receiving the first small chamber, a plate-like push-up piece protruding from the lower side of the second small chamber, passing through the second small chamber to the first small chamber, and being moved up and down; An opening is provided adjacent to the side of the push-up piece, and an opening at the other end is provided at a lower position, and a drive means for vertically moving the push-up piece. This is achieved by providing a configuration having the above.

According to another aspect of the present invention, there is provided a component supply method for aligning and feeding a chip-shaped work to be supplied thereto and guiding the work to a mounting machine. And a second small chamber having a depth substantially corresponding to a minimum thickness of the work is provided, and the first small chamber is passed through the second small chamber from below the second small chamber. The plate-like push-up piece is moved up and down so as to protrude into the room, and the work in the first small room is agitated and dropped into the second small room in the same direction. An inlet for allowing insertion when the workpiece is inserted is opened to the side of the push-up piece, and an outlet is formed below the component guide lead-out path, and the work introduced into the second chamber is provided. The push-up piece Rotate by moving up and down to match the orientation of the workpiece guided into the inlet, is achieved as supplied by discharge in the same position from said outlet through said parts guide outlet path.

[0009]

According to this, when moving from the first small chamber to the second small chamber, the orientations are preliminarily aligned, and then, when the components are introduced into the component guide lead-out path, the required orientation is further increased. It is aligned and introduced, and after that, it is discharged in the same direction until it advances to the exit side in the part guide introduction path,
Will be supplied. In addition, since the push-up piece is formed in a plate shape, a good stirring action can be obtained, and a bridging phenomenon, which has been a problem in the conventional method, can be suppressed, and component clogging can be eliminated.

[0010]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 5 show a component supply apparatus according to an embodiment of the present invention. FIG. 1 is a perspective view of a part of the apparatus as viewed from one side, and FIG. 2 is a side view of the apparatus as viewed from one side. FIG. 3 is a side view as viewed from the back side, FIG. 4 is a perspective view as viewed from one side, and FIG. 5 is a perspective view as viewed from the back side. FIG. 6 is an enlarged sectional view taken along line AA of FIG.

1 to 6, the component supply device 1 is mainly composed of a base 2 and a small chamber molded body 3. The base 2 is a member made of aluminum, and has three positioning pins 9 (see FIGS. 2 and 3) on the bottom 2a for positioning the mounting machine (not shown). A cut 4 is formed on the rear end side (rear surface 2e side) from the bottom surface 2a toward the upper surface 2b, and the cut 4 forms a handle 5 for facilitating attachment and detachment to a mounting machine. . Further, a concave portion 6 is formed on one side surface 2c (hereinafter, referred to as “front surface 2c”), and a first concave portion 7a is formed on the other side surface 2d (hereinafter, referred to as “back surface 2d”). A recess 7 consisting of three recesses, a second recess 7b and a third recess 7c
Are formed.

More specifically, a driving pulley 11, an end support pulley 12, and a tensioner 13 are disposed in the recess 6 on the front surface 2c side. Of these, the drive pulley 11
Is formed in a wheel shape with saw teeth provided at equal pitches around the periphery, and on both sides (2
c, 2d), and is rotatably attached to the support shaft 14 via a support shaft 14 that is rotatably mounted therethrough. Around the drive pulley 11, a cutout 15 cut out on the upper surface 2b and a cutout 16 cutout on the front surface 2f are formed. End support pulley 12
Is formed as a wheel with saw teeth formed at the same pitch as the drive pulley, and is rotatably mounted via a support shaft 17 disposed on the rear surface 2e side. The support shaft 17 has an elongated hole 18 formed so as to penetrate the base 2 in the front-back direction and extend in the front-rear direction.
1 (see FIG. 1) so as to be movable and adjustable in the longitudinal direction of the long hole 18. The distance between the drive pulley 11 and the end support pulley 12 can be adjusted by this movement adjustment. In addition, a cutout 19 is formed in the periphery of the end support pulley 12 in the upper surface 2b. The tensioner 13 is formed in a tubular shape, and is disposed between the driving pulley 11 and the end support pulley 12 and via a support shaft 20 so as to be rotatable with respect to the support shaft 20. The support shaft 20 is attached to a long hole 21 formed so as to penetrate the base 2 in a front-to-back manner and extend in the vertical direction so as to be movable and adjustable in the longitudinal direction of the long hole 21. I have.

Between the driving pulley 11 and the end supporting pulley 12, a timing belt 22 having teeth on its inner surface which are meshed with the teeth of the driving side pulley 11 and the teeth of the end supporting pulley 12, respectively. This timing belt 2
2, the tensioner 13 is abutted from below, and the slack of the timing belt 22 is removed. In addition, the slack adjustment of the timing belt 22
By moving the support shaft 17 together with the end support pulley 12 in the long hole 18 in the front-rear direction, or moving the support shaft 20 together with the tensioner 13 in the long hole 21 in the vertical direction, optimal tension adjustment is possible. Further, when the timing belt 22 is stretched between the driving pulley 11 and the end support pulley 12, the upper portion is disposed along the upper surface 2b. A belt guide groove 23 for guiding the belt 22 is formed between the notch 15 and the notch 19;
The timing belt 22 is disposed in a state where the timing belt 22 is dropped into the guide groove 23.

In addition, a cleaner mechanism 24 is provided at the rear of the base 2 corresponding to the recess 6 in which the timing belt 22 is provided. This cleaner mechanism 24
Cleans the outer surface of the timing belt 22 stretched between the driving pulley 11 and the end support pulley 12, and cleans the workpiece 101 placed on the timing belt 22.
(See FIG. 16). The through-hole 25 is formed straight from the rear surface 2e to a position corresponding to the end supporting pulley 12 of the recess 6 from the rear surface 2e.
And a cleaner bar 26 inserted into the through hole 25 and arranged. Among them, a female screw 27 is formed on the inner surface on the rear end side of the through hole 25. On the other hand, a felt 28 is attached to the front end side of the cleaner bar 26, and a male screw 29 and a knob 30 are formed on the rear end side corresponding to the female screw 27. Then, the cleaner bar 26 is inserted into the through hole 25 from the felt 28 side, and when the male screw 29 is screwed into the female screw 27, the felt 28 is attached in a state of being in contact with the outer peripheral surface of the timing belt 22. In this case, the felt 28 may contain a volatile cleaning liquid. Further, by adjusting the screwing amount by pinching the knob 30, the timing belt 2 can be adjusted.
2 can also be adjusted. In this cleaner mechanism 24, the felt 28 is not always in contact with the timing belt 22, but is separated at normal times by adjusting the screwing amount. The surface may be cleaned.

Next, the first concave portion 7a, the second concave portion 7b, and the third concave portion 7c formed on the back surface 2d side are inserted into the concave portion 7 composed of three concave portions. Is provided with a drive mechanism 31. In addition, among the three recessed parts 7a, 7b, 7c,
The recesses 7a and 7c have a large engraving amount, and the recess 7b has a relatively shallow engraving amount. The third recess 7c is formed with a part 8 of the upper surface 2b being cut away.

The driving mechanism 3 provided in the recess 7
Reference numeral 1 is composed of a timing belt drive system 31a for driving the timing belt 22 and a small-chamber molded body drive system 31b for promoting component supply to the small-chamber molded body 3 described later. Of these, the timing belt drive system 31
a is rotatably disposed in the first recess 7a so as to penetrate through both side surfaces 2c and 2d, and has the drive pulley 1 on the surface 2c side.
A ratchet wheel 32, which is mounted on the other end side of the support shaft 14 so as to be integrally rotatable with the support shaft 14 on which the support shaft 1 is mounted, and a ratchet wheel 32 similarly arranged in the first recessed portion 7a. It comprises a lever 33 for ratchet feed, a first ratchet pawl 34, a second ratchet pawl 35, and the like.

More specifically, the ratchet wheel 32 is
Ratchet teeth are formed on the outer peripheral surface at an equal pitch. Around the ratchet wheel 32, a notch 36 formed by cutting a part of the recess 7a toward the upper surface 2b and a notch 37 formed by cutting the front surface 2f are formed.

The lever 33 can be freely rotated with respect to the support shaft 14, and the intermediate portion is attached to the base 2 via the support shaft 14. One end 33a of the lever 33 is extended downward, and the other end 33b is connected to the first recess 7.
a, it extends substantially horizontally toward the second recess 7b. The other end 33b has a connecting pin 3
8 is attached, and a projecting shaft 39 is formed in the middle. The base 2 corresponds to the protruding shaft 39 and has an upper surface 2b.
And a through hole 40 is formed in the first recessed portion 7a so as to be opened in the vertical direction. An operation lever 41 is inserted into the through hole 40 from the side of the concave portion 7b.
The lower end of the operation lever 41 is placed on the outer peripheral surface of the protruding shaft 39. Then, when the operation lever 41 is pressed,
The lever 33 can be turned downward via the protruding shaft 39. On the other hand, the other end of a coil spring 43 that is hooked on one end to a pin 42 erected in the first recess 7a is hooked on one end 33a side. 33 is always rotated upward (counterclockwise in FIG. 3), and the operation lever 41 is moved and urged upward through the protruding shaft 39.

The first ratchet claw 34 is rotatably disposed on the other end 33b side of the lever 33 via a pivot 44. The claw 34a at the tip is engaged with the ratchet teeth of the ratchet wheel 32. ing. The first ratchet claw 34 is engaged with the other end of a winding spring 45 whose one end is engaged with the pivot 44. When the ratchet wheel 32 is rotated in the direction of arrow F (belt driving direction) in FIG. 3 by the urging force of the winding spring 45, the ratchet wheel 32 is rotated clockwise in FIG. When the wheel 32 is to rotate in the direction opposite to the direction of arrow F, the claw portion 34a bites into the teeth of the ratchet wheel 32 so that the ratchet wheel 32 is prevented from rotating in the direction opposite to the arrow F.

The second ratchet claw 35 is rotatably disposed on the back surface 2d via a pivot 46 above the lever 33, and the claw 35a at the tip is a ratchet wheel 32.
Are engaged with the ratchet teeth. The second ratchet pawl 35 has a helical spring 47 having one end engaged with a pivot 46.
Are engaged with each other. When the ratchet wheel 32 is rotated in the direction of arrow F in FIG. 3 by the urging force of the winding spring 47, as in the case of the first ratchet pawl 34, FIG.
When the ratchet wheel 32 is about to rotate in the direction opposite to the direction of arrow F, the pawl portion 35a bites into the teeth of the ratchet wheel 32, and the ratchet wheel 32 moves in the direction of arrow F. The structure prevents rotation in the opposite direction. That is, the second ratchet claw 35 is rotated by the lever 33 in the clockwise direction in FIG.
When the ratchet wheel 32 is rotated clockwise by the frictional force at this time while sliding, the claw portion 35a of the second ratchet claw 35 becomes the ratchet tooth of the ratchet wheel 32. To prevent the ratchet wheel 32 from rotating in the direction opposite to the arrow F.

The timing belt drive system 31
In a, when the operation lever 41 is pressed, the lever 33 is rotated in the clockwise direction in FIG. 3 against the urging force of the coil spring 43, and the operation lever 41 is moved to the lowermost side. Sometimes, the tip claw portion 34a of the first ratchet claw 34 is moved to a position over two ratchet teeth of the ratchet wheel 32. At this time, the ratchet wheel 32
Has not yet rotated, and only the lever 33 and the first ratchet claw 34 are moved. Next, when the pressing force of the operating lever 41 is released, the lever 33 is rotated counterclockwise in FIG. 3 by the urging force of the coil spring 43, and at this time, the ratchet wheel 32 is turned by the first ratchet pawl 34 into the arrow F.
The operation lever 41 is pushed up to the initial position and returned.

The small-chamber molded body driving system 31b has a lever 49 rotatably mounted via a pivot 48 in the second recess 7b, and one end 49a is connected to the other end of the lever 33. The other end 49b is extended to the inside of the third concave portion 7c while being extended to above 33b. Further, a long hole 50 is formed in one end 49 b of the lever 49, and the connecting pin 38 is engaged in the long hole 50, and the one end 49 a is linked to the other end 33 b of the lever 33. When the operation lever 41 is pressed down and the lever 33 is rotated downward (clockwise in FIG. 3), the lever 49 rotates counterclockwise about the pivot 48 as a fulcrum. I do. On the other hand, when the rotation of the operation lever 41 is released and the lever 33 is rotated upward (counterclockwise in FIG. 3), the structure is such that the lever 33 is rotated clockwise in conjunction with this. I have.

Part of the small chamber molded body 3 is the third concave portion 7c.
The base 51 is housed inside and is disposed so as to protrude from the upper surface 2 b of the base 2. More specifically, the base 51 is made of aluminum and has a lower base 51A housed in the third recess 7c and an upper base protruding from the upper surface 2b of the base 2. Base 51B
And are integrally formed. Further, a recess 52 is formed on the back surface 51 b of the base 51, and a buffer mechanism 53 is provided in the recess 52. On the other hand, the base 5
The first small chamber 54 and the second small chamber 5
5, a push-up piece guide groove 56, and a component guide groove 57 are formed. In addition, a long hole 82 penetrating the front and back surfaces is formed in the base body 51 so as to extend in the vertical direction, corresponding to the push-up piece guide groove 56.

The cushioning mechanism 53 includes a pivot 58 having one end protruding from the front and back sides through the long hole 82, and a spacer member 59 fixedly attached to one end of the pivot 58 on the back 51b side. A slide plate 61 having a long hole 60 for escaping the spacer member 59 and being attached to the spacer 59 so as to be vertically movable, and an upper bent piece portion 61 a of the slide plate 61 and the spacer member 59. It is composed of a coil spring 62 stretched between them. The other end 49 b of the lever 49 is linked to the lower end of the slide plate 61 via a pivot 63.

In FIG. 3, when the lever 49 is rotated counterclockwise about the pivot 48, the slide plate 61 is pushed upward with the pivot 63 as a fulcrum. Then, the movement of the slide plate 61 is transmitted to the spacer member 59 via the coil spring 62, and the spacer member 59 and the pivot 58 are moved upward, and the pivot 5
A push-up piece 64, which will be described later, attached to the push-up piece 8 is moved upward in the push-up piece guide groove 56. In this state, when the lever 49 is rotated clockwise about the pivot 48, the slide plate 61 is pushed down about the pivot 63. Then, the inner surface of the elongated hole 60 of the slide plate 61 comes into contact with the spacer member 59, and the spacer member 59 is forcibly pushed down together with the pivot 58, and
As a result, the push-up piece 64 is moved downward.

Therefore, the shock absorbing mechanism 53 here uses the force by which the lever 49 moves the push-up piece 64 upward.
Since the lever 49 is not directly transmitted to the push-up piece 64 but is transmitted to the pivot 58 side via the coil spring 62, it is difficult for the push-up piece 64 to be forcibly pushed up due to, for example, clogging of a component (work). In such a case, the operating force on the lever 49 side is absorbed between the slide plate 61 and the spacer member 59, so that damage to the work can be suppressed and the work can be protected.

Next, the surface 51a of the base 51 will be described. A plastic side plate 65 is disposed on the front side of the upper base 51B over the front surface.
Are fixedly attached to the upper base 51B with screws 79. On the lower surface side of the upper base body 51B, a gentle notch 66 for escaping a part of the timing belt 22 detouring outside the end support pulley 12 is formed. On the other hand, a cartridge mounting portion 67 to which a cartridge 110 containing a supply component (work 101) is removably mounted is formed at an upper end portion of the base 51.

Here, the cartridge 110 used in the present embodiment and the work 101 stored in the cartridge 110 will be described. The cartridge 110 has a lower mounting portion 111 (corresponding to the cartridge mounting portion 67). A plurality of (usually about 20,000) works 101 are stored in a loose state. A shutter mechanism (not shown) is provided in the opening of the mounting portion 111. When the slide knob 112 provided on the side of the shutter mechanism is slid, the opening can be freely opened and closed. I have. The cartridge 110 is a commercially available product.

On the other hand, the work 101 is a chip register in this embodiment, and as shown in FIG. 16, the work 101 has a vertical dimension t1 of approximately 0.4 mm, a horizontal dimension t2 of 0.8 mm, and a length t3 of It is formed in a 1.5 mm rectangle. It should be noted that other works may be used for the implementation.

Next, the first small chamber 54 communicates with the cartridge mounting portion 67 and has a large depth d1 (see FIG. 6). On the other hand, the second small chamber 55 is formed below the first small chamber 54 so as to communicate with the first small chamber 54. The depth d2 of the second small chamber 55 (see FIG. 6)
Is formed in a state where it is larger than the vertical dimension t1 (see FIG. 16) and smaller than the horizontal dimension t2 (see FIG. 16) of the work 101, that is, the condition (t1> t2) is satisfied. Further, a space between the first small chamber 54 and the second small chamber 55 is formed as an inclined guide surface (guidance path) 81, and when the work 101 is loaded into the first small chamber 54 from the cartridge 110. In addition, the structure is such that the guide surface 81 can be easily guided to the second small chamber 55 side by sliding. In addition, in this embodiment, the first small chamber 54 and the second small chamber 55
The surface of each of the guide surface 81 and the guide surface 81 is provided with a satin pattern so that the work 101 is difficult to be stuck.

The push-up piece guide groove 56 is provided in the second small chamber 5.
5, the lower side of the second small chamber 55 communicates with the second small chamber 55 so as to extend in the up-down direction. It is formed as an inclined surface 55a. The push-up piece guide groove 56 accommodates a plate-like push-up piece 64 having a relatively wide width guided by the push-up piece guide groove 56 so as to be reciprocable in the vertical direction. When the push-up piece 64 is moved to the lower end side, the upper end surface 64a is provided in a state where the upper end surface 64a is arranged at a position substantially corresponding to the lower end of the inclined surface 55a. The workpiece 101 is slightly inclined toward the side, that is, toward the component guide groove 57, so that the work 101 can easily move toward the component guide groove 57. Also,
The thickness of the upper end side of the push-up piece 64 that enters the first small chamber 54 and the second small chamber 55 is the vertical dimension t1 of the work 101.
It is formed substantially equally.

As shown in FIGS. 7, 8, 9 and 15, etc., the part guide groove 57 has an inlet 57a located at the upper end side, which pushes up the guide groove 56 and the second small chamber 55.
And an outlet 57b located at the lower end side is opened at a lower corner portion of the upper base 51B corresponding to the belt guide groove 23. In the process from the entrance 57a to the exit 57b, the component guide groove 57 is twisted by approximately 90 degrees. That is, in the portion of the entrance 57a, the work 101 is gradually changed in direction until the upper surface 101a faces the outside and slides inside the component guide groove 57 to reach the portion of the exit 57b. In the portion, the side surface 101b faces outward. As shown in FIG. 8 as a cross-sectional view along the line BB in FIG. 7, the depth T1 of the component guide groove 57
1 is slightly larger than the height t1, and the width T2 of the curved portion is larger than the depth T1 as shown in FIG. 9 as a cross-sectional view along the line CC in FIG. Work 1
01 is less than twice the height t1 of t1, that is, (T1
It is formed so as to satisfy the condition of <T2 <2 · t1). Further, the other portions are formed with a size not exceeding (2 · t1). Accordingly, by forming the width T2 of the curved portion large as described above, a large gap is formed between the curved portion and the work 101. When the workpiece 101 is dropped, the corner of the workpiece 101 abuts on the inner surface of the component guide groove 57 and is caught, so that the drop is not disturbed. Moreover, the height t1 of the work 101 is 2
Since the work is formed at a depth t2 smaller than twice, even if the work 101 is clogged at the exit portion, it is possible to prevent the works from being overlapped and double-fed, or to further promote the clogging. Further, on the inlet 57a side, the width (depth T1) is reduced so that a gap is hardly formed between the work 101 and the plurality of works 101 when they are introduced. There's nothing that prevents a smooth introduction when trying to get in.

FIGS. 10 to 14 are operation state diagrams of the base body 51. FIG. Therefore, the operation of the base 51 will be described with reference to FIGS. 10 to 14. FIG. 10 shows a state in which the work 101 is not loaded into the first small chamber 54 and the second small chamber 55. 64 is also moved to the lower end and is in a standby state.

Next, when the work 101 is stored in the first small chamber 54, it slides on the guiding surface 81 and moves to the second small chamber 5.
5 and fall into the second small chamber 55 and push up the piece 64.
On the inclined upper surface 64a and the inclined surface 55a (see FIG. 11). Further, some of them are dropped by gravity into the component guide grooves 57. Note that the second small chamber 55
Is smaller than the vertical dimension t1 of the workpiece 101 and smaller than the horizontal dimension t2, that is, the workpiece 101 is formed in a state that satisfies the condition of (t1> t2). 101 is arranged with the upper surface 101a facing outward.

Next, when the push-up piece 64 is pushed up, the work 101 is stimulated by the movement of the push-up piece 64, and the work 101 is moved into the component guide groove 57 by the inclination of the upper end surface 64a and the inclination of the inclined surface 55a. The work 101 slides, and a rolling force is applied to a part of the work 101. Then, the workpiece 101 which coincides with the component guide groove 57 is dropped by gravity into the component guide groove 57 and slides in the component guide groove 57 toward the outlet 57b.
01b faces outward and is discharged.

Further, when the push-up piece 64 is moved upward and extends beyond the second small chamber 55 to the inside of the first small chamber 54, the work 101 at the lower end side in the first small chamber 54 is pushed up. . At this time, a part in which the direction of the work 101 is aligned appears on the inclined upper end surface 64a of the push-up piece 64 (see FIG. 13).

When the push-up piece 64 further rises upward, the work 101 sandwiched between the push-up pieces 64 and both side surfaces of the first small chamber 54 is stirred (see FIG. 14). In this case, since the push-up piece 64 is formed in a plate shape, the stirring is performed better than when the pin-shaped member is moved up and down in the conventional structure. At this time, since the lifting force is applied to the push-up piece 64 via the above-described coil spring 62, no excessive force is applied to the work 101, and the risk of damage to the work 101 is avoided. are doing. In addition, the first small chamber 5
4 falls into the second small chamber 55.

Next, when the push-up piece 64 descends, the work 101 located on the inclined upper end surface 64a of the push-up piece 64 directly descends into the second small chamber 55. A large number of works 101 are introduced into the second small chamber 55 together with the works introduced from the small chamber 54. When the push-up piece 64 returns to the state shown in FIG. 11, one cycle is completed, and the same operation is repeated again.

Then, the small chamber forming body 3 configured as described above has the lower base portion 51A housed in the third recessed portion 7c and is fixed to the base 2 with screws 79. Further, a long hole 68 (see FIG. 1) is formed in the lower base portion 51A at a position corresponding to the long hole 18 on the base 2 side.
Is arranged at a predetermined position of the third recessed portion 7c, the long hole 18 corresponds to the long hole 68, and the support shaft 17 is inserted through the long hole 18 and the long hole 68. It can be fixed by tightening with screws 69 (see FIG. 2). In addition, the small chamber forming body 3 attached to the predetermined position of the base 2 with the screw 67 and the screw 69 in this way has a lower end where the outlet 57b of the component guide groove 57 is open as shown in FIG. The edge portion 3 a is abutted against the timing belt 22 on the side of the end support pulley 12, and the outlet 57 b is located below the horizontal tangent line 70 so that the timing belt 22 is elastically arranged. This arrangement suppresses the vibration of the timing belt 22 at the outlet 57b, and
The work 101 discharged from the belt is the timing belt 2
2 smoothly contributes to the predetermined position.

In addition, after the small chamber forming body 3 is mounted, the work guide member 71 and the work take-out stage member 72 are mounted on the upper surface 2b of the base 2.

The work guide member 71 is disposed immediately adjacent to the small chamber forming body 3 and is formed in a groove shape on the lower surface side corresponding to the outlet 57b of the component guide groove 57. A tunnel portion 73 is provided. The tunnel portion 73 is arranged so as to be extended to just before the cutout portion 15, and the upper surface 2 b of the base 2 is
It is fixed to. The work guide member 71
The work 101 taken out from the component guide groove 57 onto the timing belt 22 is
Thus, when it is sent to the front surface 2f side, it is prevented from moving due to external vibration or contact by passing through the tunnel portion 73, and contributes to maintaining the posture and orientation.

The work take-out stage member 72 is disposed immediately adjacent to the work guide member 71, and is fixedly mounted on the upper surface 2b with screws 75. An opening for receiving the work 101 sent by the timing belt 22 through the inside of the tunnel portion 73 of the work guide member 71 is provided at a position corresponding to the timing belt 22, that is, a position corresponding to the belt guide groove 23. A concave portion 77 having a slit portion 76 arranged so that the portion is aligned with the tunnel portion 73 is formed. Note that the slit portion 76 is formed on the timing belt 22 and thus the upper surface 2b
Work take-out stage member 7 mounted on top
2, the workpiece 101 sent by the timing belt 22 through the tunnel portion 73 of the workpiece guide member 71 is received by the slit portion 76, stopped at that position, and provided with a vacuum suction nozzle (not shown). This contributes to waiting until it is picked up by vacuum suction by the pickup mechanism. When the timing belt 22 is driven during the standby, the gap between the work 101 and the timing belt 22 in the standby state slides, and the work 101 can wait on the timing belt 22. . Therefore, when the surface of the timing belt 22 becomes dirty and the frictional force increases, the work 101 may be forcibly fed during the standby state and the alignment in the standby state may be broken. The above cleaner mechanism 2
It is very important to clean the surface of the timing belt 22 by providing the surface belt 4 and to eliminate friction caused by dirt.

Next, the overall operation of the component supply device 1 configured as described above will be described. First, the mounting portion 111 is inserted into and engaged with the cartridge mounting portion 67, and the cartridge 110 in which the plurality of works 101 are stored is mounted on the upper part of the small chamber molded body 3, and the component supply device 1 is mounted on a mounting machine (not shown). Is mounted with positioning pins 9. Next, the slide knob 112 of the cartridge 110
To release the shutter mechanism of the cartridge 110. Then, as described above, the work 101 in the cartridge 110 is dropped by gravity in the first small chamber 54 and the second small chamber 55 in a state of being separated, and a part of the work 101 passes through the component guide groove 57 and exits. It is dropped on the timing belt 22 from 57b.

Next, before the operation on the mounting machine side is started, the work 1 is placed on the work take-out stage member 72.
A preliminary setting operation is carried out to transport 01 in advance.
In this preliminary setting operation, the operator manually operates the operation lever 41.
Is pressed and released, that is, the operation lever 41 is repeatedly moved up and down. When the operation lever 41 is pressed down, the lever 33 of the timing belt drive system 31a is rotated in the clockwise direction in FIG. 3 in conjunction with this operation, and the lever 49 of the small chamber forming body side drive system 31b is moved. Rotated counterclockwise. In this case, when the lever 33 is rotated in the clockwise direction in FIG. 3, the ratchet wheel 32 and the drive are driven by the actions of the first ratchet pawl 34, the second ratchet pawl 35, and the ratchet wheel 32 as described above. The support shaft 14 that is rotated integrally with the side pulley 11 is not rotated. Therefore, the timing belt 22 does not rotate. On the other hand, when the lever 49 is rotated in the counterclockwise direction, the slide plate 61 is pushed up by the lever 49, and this is transmitted to the spacer member 59 side via the coil spring 62. Is pushed up to the inside of the small chamber 54. As a result, the work 101 is stirred in the first small chamber 54 as described above, and is dropped by gravity into the component guide groove 57 and sent to the outlet 57b. Thereby, the first and second
The work 101 in the small chambers 54 and 55
Are sent sequentially.

Next, when the depression of the operation lever 41 is released, the lever 33 is rotated counterclockwise in FIG. 3 and the lever 49 is rotated clockwise by the tension of the coil spring 43. You. And lever 33
Is rotated in the counterclockwise direction in FIG. 3, the first ratchet claw 34 rotates the ratchet wheel 32 in the same direction as the lever 33 (the direction of arrow F in FIG. 3) by two teeth.
Then, the drive-side pulley 11 and the support shaft 14 are rotated in the same direction together with the ratchet wheel 32, whereby the timing belt 22 is rotated by an amount corresponding to the rotation of the ratchet wheel 32.
It is rotated forward (in the direction of arrow G in FIG. 2). In this embodiment, the amount by which the timing belt 22 is intermittently fed by one operation of the operation lever 41 is about two (2 × t3) of the length t3 (= 1.5 mm) of the work 101, That is, it is set to about 3 mm. Therefore, the component guide groove 5
7, the workpiece 101 dropped on the timing belt 22 passes through the tunnel portion 73 by the same amount as the timing belt 22, that is, about 3 mm each time the timing belt 22 is intermittently driven once. The work 101 is sent to the take-out stage member 72 side, so that the work 101 is always present on the work take-out stage member 72.

On the other hand, when the lever 49 is rotated clockwise, the slide plate 61 is pushed down with the pivot 63 as a fulcrum. Then, the inner surface of the elongated hole 60 of the slide plate 61 comes into contact with the spacer member 59, and the spacer member 59 is forcibly pushed down together with the pivot 58, and accordingly, the push-up piece 64 is also moved downward.

Thus, one cycle in the preliminary set operation is completed. Thus, the work 101 is sequentially sent to the work take-out stage member 72 side, and the first work 1
01 is the slit portion 7 of the work take-out stage member 72
6 and is brought into contact with the inner part of the slit 76. Then, in the preliminary setting state, the work 101
Slides with the timing belt 22 and enters a standby state. Then, the next work 101 is similarly disposed after the previous work 101 in the slit portion 76 and is in a standby state. In this way, the plurality of workpieces 101
Is placed on the timing belt 22 in a standby state,
The preliminary setting operation is completed, and the operation proceeds to the mounting operation by the mounting machine.

In the mounting operation by the mounting machine, a pick-up mechanism (not shown) descending from above the work take-out stage member 72 while the operator has manually pressed the operation lever 41 in the preliminary setting operation. Is pressed. This pickup mechanism has a work 1 at the lower end.
It has a vacuum suction nozzle for chucking 01. Then, when the pickup mechanism is lowered to suck the work 101 on the work take-out stage member 72 by the vacuum suction nozzle, the operation lever 41 is pressed down by the lowering. Next, the vacuum suction nozzle vacuum-holds the work 101 to be lifted and mounted on a predetermined printed wiring board (not shown). When the pickup mechanism is raised, the pressing of the operation lever 41 is released.
Further, in this operation, the pick-up mechanism moves the work 10
The work 101 is sent to the work take-out stage member 72 at twice the speed of picking up the work 1 and is on standby.
2 can be avoided.

Also, in this manner, the cartridge 110
The workpiece 101 is supplied and the cartridge 11 is supplied.
When the work 101 in the cartridge 0 has run out, the empty cartridge 110 is removed, and a new cartridge 11 is used instead.
The shutter mechanism is opened by operating the slide knob 112. Then, a new cartridge 11
The work 101 in 0 can be supplied in the same manner.

Further, when removing the component supply device 1 and replacing it with another component supply device, the old component supply device 1 is removed from the mounting machine, and the rear surface 2 of the old component supply device 1 is removed.
The component supply device 1 is turned upside down with the e side slightly downward. Then, the work 101 sent out on the timing belt 22 is returned to the inside of the first small chamber 54 along the path in reverse, and is returned from the first small chamber 54 to the inside of the cartridge 110. Then, the cartridge 110
Then, when the slide mechanism is operated to close the shutter mechanism, all the workpieces 101 can be exchanged while housed in the cartridge 110.

Therefore, according to the component supply apparatus of the present embodiment, the work 10
A first small chamber 54 having an opening at the top of the first small chamber 54 and a depth (d2) substantially corresponding to the minimum thickness (t1) of the work 101 are communicated below the first small chamber 54. A second small chamber 55 is provided for receiving the workpiece 101 in a predetermined direction. The second small chamber 55 is projected from the lower side of the second small chamber 55 through the second small chamber 55 into the first small chamber 54. A plate-like lifting piece 64 that moves up and down, and an opening 57 on one end side
d is provided adjacent to the side of the push-up piece 64, and the component guide guide path (the component guide groove 57) provided with the outlet 57b at the other end located below, and moves the push-up piece 64 up and down. And a driving mechanism 31 for moving the first small chamber 54 to the second small chamber 55.
When the orientation of the work 101 is preliminarily aligned and then introduced into the component guide groove 57, the required orientation is further aligned and introduced, and thereafter, the component guide groove 5
7 are discharged onto the timing belt 22 in a uniform direction until the inside proceeds to the outlet 57b side. After the discharge, the sheet is further conveyed by the timing belt 22 and guided and supplied to the mounting machine. In this structure, since the push-up piece 64 is formed in a plate shape, a good stirring action can be obtained, and the bridging phenomenon which has been a problem in the conventional method can be suppressed. As a result, the bridge phenomenon itself can be suppressed without forcibly breaking the bridge generated by the conventional method by blowing air, applying vibration, or the like, thereby eliminating component clogging. Can be supplied reliably.

Further, between the first small chamber 54 and the second small chamber 55, an inclined surface is formed to guide the work 101 put into the first small chamber 54 into the second small chamber 55. Since the guide path (guide surface 81) is provided, the first small chamber 54
Thus, the work 101 is guided to the second small chamber 55 well. Therefore, the work 101 can be further guided to the second small chamber 55 in cooperation with the stirring of the push-up piece 64.

Further, the upper end surface 64a of the push-up piece 64
Is formed as a plane on which the works 101 can be arranged and placed, and when the push-up piece 64 is moved down, the works 101 arranged on the upper end face 64a are kept in the arranged state in the second state. Since the work 101 can be guided into the small chamber 55, the work 101 can be guided to the second small chamber 55.

Further, the upper end surface 64 of the push-up piece 64
a is formed as an inclined surface descending toward the entrance 57a side of the component guide groove 57, and the bottom surface in the second small chamber 55 is formed as an inclined surface 55a descending toward the entrance 57a side of the component guide groove 57. Therefore, the work 101 can be guided to the second small chamber 55 also by this.

Further, the inner surface of the first small chamber 54 and the second
The inner surface of each of the small chambers 55 is formed with a rough surface having a satin pattern, so that even if there is moisture, the
There is no sticking to the inner surface of the 4, 55, so that reliable supply can be performed.

Further, a buffer mechanism 53 is provided between the drive mechanism 31 and the push-up piece 64, and the driving force of the drive mechanism 31 is applied to the push-up piece 64 via the buffer mechanism 53. Even in the case where clogging occurs, it is possible to prevent the work 101 from being damaged due to excessive force being applied to the work 101.

Further, the part guide groove 57 is formed by being twisted, and the workpiece 10 when inserted at the entrance 57a side.
Since the first direction is discharged in a different direction (converted to 90 degrees in the present embodiment) on the outlet 57b side, the direction can be discharged in the most preferable direction for mounting on the timing belt 22, and the pickup mechanism or the like can discharge. Vacuum suction makes it easier to pick up and post-processing is easier.

[0058]

As described above, according to the present invention,
When being moved from the first compartment to the second compartment, the orientation is preliminarily aligned, and then, when introduced into the component guide lead-out path, the orientation is further aligned and required, and
Thereafter, they are discharged and supplied in the same direction until they advance to the exit side in the component guide introduction path.
In addition, since the push-up pieces are formed in a plate shape, a good stirring action can be obtained, and a bridge phenomenon, which has been a problem in the conventional method, can be suppressed. Even if the bridge is not forcibly broken by giving vibration or the like, the bridge itself can be suppressed, so that clogging of parts can be eliminated. Thus, it is possible to realize a small-sized and simple component supply device which can surely supply a chip-shaped work in the same direction.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a part of an apparatus according to an embodiment of the present invention, viewed from one surface side.

FIG. 2 is a side view of the apparatus according to the embodiment of the present invention as viewed from one surface side.

FIG. 3 is a side view of the apparatus according to the embodiment of the present invention as viewed from the back side.

FIG. 4 is a perspective view of the embodiment of the present invention as viewed from one surface side.

FIG. 5 is a perspective view of the apparatus according to the embodiment of the present invention as viewed from the back side.

FIG. 6 is a sectional view taken along line AA of FIG. 3;

FIG. 7 is an enlarged view of a main part of the device according to the embodiment of the present invention.

FIG. 8 is an enlarged sectional view taken along line BB of FIG. 7;

FIG. 9 is an enlarged sectional view taken along line CC of FIG. 7;

FIG. 10 is an operation explanatory view of a small chamber molded body in the apparatus according to the embodiment of the present invention.

FIG. 11 is an explanatory view of the operation of the small chamber formed body in the apparatus according to the embodiment of the present invention.

FIG. 12 is an explanatory view of the operation of the small chamber formed body in the apparatus according to the embodiment of the present invention.

FIG. 13 is an operation explanatory view of a small chamber formed body in the apparatus according to the embodiment of the present invention.

FIG. 14 is an explanatory diagram of the operation of the small chamber formed body in the apparatus according to the embodiment of the present invention.

FIG. 15 is an enlarged view of a main part of the device according to the embodiment of the present invention.

FIG. 16 is an external perspective view illustrating an example of a work.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 component supply device 2 base 3 small chamber formed body 31 drive mechanism 53 buffer mechanism 54 first small chamber 55 second small chamber 55 a inclined surface 57 component guide groove (component guide lead-out path) 57 a inlet 57 b outlet 64 push-up piece 64 a upper end surface 81 Guide surface (guidance path) 101 Work

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-8-64992 (JP, A) JP-A-3-187298 (JP, A) JP-A-3-145799 (JP, A) JP-A-55-1979 151340 (JP, A) Japanese Utility Model Application 5-40229 (JP, U) Japanese Utility Model Application 57-62735 (JP, U) Japanese Utility Model Application 4-16731 (JP, U) Japanese Utility Model Application 49-139783 (JP, U) Japanese Utility Model Application Hei 2-28490 (JP, U) Japanese Utility Model Application Showa 57-28835 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H05K 13/02

Claims (9)

(57) [Claims] 1. A component supply device for aligning and feeding a chip-shaped work to be supplied and guiding the work to a mounting machine, comprising: a first small chamber having an opening into which the work is supplied; A second small chamber having a substantially corresponding depth and communicated below the first small chamber for receiving the work in a predetermined direction; and a lower side of the second small chamber. A plate-like push-up piece protruding and moving up and down through the second small chamber to the first small chamber; an opening at one end side is provided adjacent to a side of the push-up piece; A component supply device, comprising: a component guide lead-out path provided with an opening at a lower position; and driving means for vertically moving the push-up piece. 2. A guide formed by an inclined surface, between the first small chamber and the second small chamber, for guiding the work put into the first small chamber into the second small chamber. The component supply device according to claim 1, wherein a path is provided. 3. The upper surface of the push-up piece is formed as a flat surface on which the works can be arranged and placed, and when the push-up piece is moved down, the works arranged on the upper end face are removed. 2. The component supply device according to claim 1, wherein the component supply device can be guided into the second small chamber in a state where the components are arranged. 4. An upper end surface of the push-up piece is formed as an inclined surface which descends toward the entrance side of the component guide lead-out path, and a bottom surface of the second small chamber is formed by the component guide lead-out path. The component supply device according to claim 1, wherein the component supply device is formed as an inclined surface that descends toward an entrance side. 5. The component supply device according to claim 1, wherein the inner surface of the first small chamber and the inner surface of the second small chamber are each formed with a rough surface. 6. A structure in which a buffering means is provided between the driving means and the push-up piece, and a driving force of the driving means is applied to the push-up piece via the buffering means.
A component supply device according to claim 1. 7. The component supply device according to claim 1, wherein the component guide lead-out path is formed by being twisted, and the workpiece can be ejected with the orientation of the workpiece inserted at the entrance side being different at the exit side. 8. A component supply method for arranging and guiding a chip-shaped work to be supplied and guiding the work to a mounting machine, wherein the work is communicated with a lower side of a first small chamber having an opening into which a plurality of works are supplied. A second chamber having a depth substantially corresponding to a minimum thickness of the work, and a plate-like shape extending from the lower side of the second chamber through the second chamber to the first chamber. Is moved up and down so that the push-up pieces protrude, and the work in the first small chamber is agitated and dropped into the second small chamber in the same direction. An inlet for allowing insertion is opened to the side of the push-up piece, and a component guide lead-out path having an outlet formed below is provided, and the workpiece introduced into the second chamber is pushed up by the push-up piece. Rotated by the vertical movement of And feeding the workpiece in the same orientation from the outlet through the component guide guide path. 9. The component guide lead-out path is formed by being twisted in the middle, so that the direction of the workpiece when inserted at the entrance side and the direction of discharge from the exit side are made different. Parts supply method.