JPS62188327A - Pellet mounting apparatus - Google Patents

Abstract

PURPOSE:To enable the rapid and sure operation of mounting pellets at a plurality of pellet mounting positions, by adjusting the positions of reference points for transfer of an operating body so that the pellets held in mounting elements can be positioned corresponding to prescribed pellets mounting positions. CONSTITUTION:By adjustment of driving of a stepping motor 80 as a position adjusting means disposed on a base 11, the position of pin 78 of a second operating body 77 is adjusted to each of reference points M1, M2 and M3 for transfer. Thereby pellets 19 held by a pellet mounting nozzle 36 are transferred and positioned so that they correspond to two juxtaposed pellet mounting positions 27A and 27B. Accordingly, it is dispensed with to move a driving element of large weight for adjustment in accordance with each of the pellet mounting positions 27A and 27B each time as usual, and thus it turns possible to mount the pellets 19 to the pellet mounting positions 27A and 27.B rapidly and easily.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a pellet mounting device for mounting pellets at pellet mounting positions on a board in the manufacturing process of electronic components such as ICs and LSIs.

[Prior Art] Conventionally, a generally used pellet mounting device includes a drive section disposed on a base, and a lead frame [substrate] that is transported to a pellet alignment position and a predetermined transport position by the drive of the drive section. A mounting part consisting of a suction nozzle, etc. is disposed on the working body, which is equipped with a working body that reciprocates between the , it is possible to hold the aligned pellets at the aligned position. The pellet held in the mounting section is positioned at the pellet mounting position of the lead frame by moving the operating body toward the lead frame, and is mounted at the pellet mounting position. In other words, the mounting section disposed on the actuating body is reciprocated between the pellet alignment position and the pellet mounting position by the reciprocating movement of the working body, and thereby the beret is mounted on the pellet mounting position of the lead frame. It is possible. At this time, the lead frame, which has a plurality of pellet mounting positions in the longitudinal direction, is conveyed in pitches such that each pellet mounting position corresponds to and is positioned in sequence with a mounting section that holds pellets.

Recently, there has been a dual lead frame in which two pellet mounting positions are arranged side by side in the width direction of a lead frame that is pitch-transferred. In this type of lead frame, pellets are mounted using a pellet mounting device described in, for example, Japanese Patent Laid-Open No. 80-128842. In this device, a collet (installation part) disposed on a pounding arm serving as an operating body can be reciprocated between a lead frame and a pellet alignment position by driving an XY table. Further, in this apparatus, a pulse motor is interposed between the XY table and the pounding arm so that the collet moved onto the lead frame is moved correspondingly to each parallel pellet mounting position. That is, this pulse motor is arranged on an XY table, and allows a pounding arm that supports a collet to be moved minutely in the width direction of the lead frame. As a result, the collet on the lead frame can be moved to the corresponding pellet mounting position through the drive of the pulse motor.

[Problems to be Solved by the Invention] However, reciprocating the heavy XY table equipped with a pulse motor as described above between the lead frame and the pellet alignment position is difficult to achieve by driving the XY table. This was considered to be a factor that placed a high burden on the means. As a result, it was not possible to position the mounting portion with respect to the pellet mounting position at high speed.

The present invention has been made in view of the above-mentioned conventional problems, and its purpose is to quickly and reliably perform pellet mounting operations at a plurality of pellet mounting positions using a simple configuration.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a pellet mounting device that is capable of mounting berets/) at a plurality of pellet mounting positions arranged on a substrate to be transported. In,
a drive unit disposed on a base; an actuator that is reciprocated between a predetermined movement reference point and a movement point by driving the drive unit;
disposed on the operating body, moved back and forth between the pellet alignment position and the substrate by the reciprocating motion of the operating body, and holding the pellets aligned at a predetermined angle at the pellet alignment position;
A mounting unit that transfers the pellet onto the substrate and allows it to be mounted at a predetermined pellet mounting position, and a pellet that is placed on the base and is transferred and positioned on the board by the mounting unit. and a position adjustment means that can adjust the position of the moving reference point of the operating body so that it is moved corresponding to the predetermined pellet mounting position.

[Operation] According to the present invention, it is possible to adjust the position of the movement reference point of one operating body by operating the position adjusting means disposed on the base. This makes it possible to position the pellet held in the mounting portion at a predetermined pellet mounting position among the plurality of pellet mounting positions. This eliminates the conventional problem of moving a high-load pulse motor using an XY table, and with a simple configuration, it becomes possible to quickly and reliably perform pellet mounting work at a plurality of pellet mounting positions.

[Example] Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a front view showing a pellet loading device according to an embodiment of the present invention, FIG. 2 is a plan view taken along the line ■-■ in FIG. 1, and FIG. 3 is a plan view taken along the line ■-■ in FIG. 4 is a sectional view taken along the line IV-IV in FIG. 3, FIG. 5 is a plan view taken along the line v-V in FIG. 1, and FIG. 6 is a sectional view taken along the line v-V in FIG. FIG. 4 is a rear view taken along the line Vl-VI in FIG. 3;

The pellet loading device 10 includes a base 11, and the base 11
An XY table 12 that can be driven in plane x and Y directions is supported. A support frame 13 for the cassette ring is fixed to the upper surface of the XY table 12 by a pole 14.

A cassette ring 15 is removably attached to a support frame 13 for the cassette ring. This cassette ring 1
An adhesive sheet 17 on which a wafer 16 is attached is attached to the substrate 5 via a rubber band 18. Adhesive sheet 17
The upper wafer 16 has a circular shape, and the wafer 16
is divided into chip-shaped pellets 19 as element pieces. That is, each pellet) 19 is a sticky sheet) 1
7, the pellets are arranged in multiple rows and columns along the XY direction of the xY table 12, and a predetermined position on the adhesive sheet 17 is defined as a pellet supply position 20.

In FIG. 1, to the right of the pellet supply position 20, a pellet uniformity '821 is disposed. The pellet leveling unit 21 includes a leveling table 22 located at a constant height relative to the base 11 (see FIG. 1).

Four pellet uniformity claws 24 are arranged around the pellet uniformity position 23 on the uniformity table 22. Each of the pellet uniformity pawls 24 is movable forward and backward in the direction of arrow A, and when driven forward to the pellet uniformity position 23,
The pellets 19 supplied to the plate can be uniformly aligned to a predetermined uniform angle state.

In FIG. 1, a lead frame carrier 25 is disposed to the right of the pellet alignment position 23. The lead frame carrier 25 is placed at a constant height relative to the base 11 . The lead frame carrier 25 is disposed in the Y direction, and is capable of pitch-transferring the lead frame 26 [substrate] in the direction of arrow B. The lead frame 26 to be conveyed is a dual lead frame in which two pellet mounting positions 27A and 27B are arranged side by side in the width direction (X direction), and the interval between the pellet mounting positions 27A and 27B that are continuous in the Y direction is , a predetermined pitch P.

As a result, the conveyor 25 is capable of intermittently conveying the lead frame 26 at a pitch P so that each pellet mounting position 27A or 27B in the Y direction is sequentially stopped at a predetermined frame stopping position 28.

Pellet supply position 20 on adhesive sheet) 17 and alignment table 22
The distances between the upper pellet alignment positions 23 and between the pellet alignment positions 23 and the center of the frame stop position 28 are each the same length TI, and each position is arranged on the same straight line in the X direction. (See Figure 2). Further, the pellet supply position 20, the pellet uniformity position 23, and the beret 2 mounting positions 27A and 27B on the lead frame 26 are arranged at the same height (Hl) with respect to the base 11 (Fig. 1). reference).

In FIG. 1, a support frame 29 is provided on the right side of the lead frame with respect to the carrier 25, and the support frame 29 is supported on a base 11. Support frame 2
9 is provided with a fixed arm 30 extending above each of the conveying body 25, the pellet alignment section 21, and the adhesive sheet 17. The fixed arm 30 is equipped with two upper and lower guide rods 32 whose opposite ends are supported by respective rod support parts 31A and 31B. Each guide rod 32 has a longitudinal direction in the X direction, and each guide rod 32 supports a first slide body 33 and a second slide body 34, respectively. That is, each slide body 33, 34 is moved in the direction indicated by the arrow X with respect to the guide rod 32.
It is supported so that it can slide in the direction.

Among the two slide bodies 33 and 34, the first slide body 3
3 supports a pellet transfer nozzle 35. Further, the second slide body 34 has a pellet mounting nozzle 36.
is supported. Each nozzle 35, 36 is capable of sucking and holding the pellet 19 at its lower end, and is supported so as to be movable up and down relative to the corresponding slide body 33, 34, respectively. A roller 37 is attached to the upper part of each nozzle 35, 36, and each roller 37 is attached to the guide rod 32.
It is possible to run in the direction of arrow X on a lifting rail 38 disposed above. That is, when each nozzle 35, 36 is moved in the direction of arrow X by sliding of the slide body 33, 34, the roller 37 is moved on the elevating rail 38. A spring holding part 39 is provided at the upper part of the pellet transfer nozzle 35 , and a first tension spring 40 is interposed between the spring holding part 39 and the first slide body 33 . The first tension spring 40 is capable of biasing the pellet transfer nozzle 35 downward, thereby enabling the roller 37 attached to the nozzle 35 to contact the lifting rail 38 at all times. On the other hand, a spring holding part 41 is provided at the upper part of the pellet mounting nozzle 36, and a second
A tension spring 42 is interposed. The second tension spring 42 allows the pellet loading nozzle 36 to be biased downward, thereby allowing the roller 37 attached to the nozzle 36 to be biased downwardly.
can be brought into contact with the lifting rail 38 at all times. The elevating rail 38 that abuts and holds each roller 37 has both ends supported by the tips of the corresponding swing arms 43, respectively.

Each swing arm 43 has its base end supported by a rotation shaft 44, as shown in FIGS. 3 and 5. The rotation shaft 44 is
It is rotatably supported in the direction of arrow C with respect to a bearing 45 provided in the rod support portion 31A and a bearing 47 supported by a fixed arm 46. As a result, by rotating the rotation shaft 44 in the direction of arrow C, it becomes possible to rotate the tip of the swinging arm 43 in the direction of arrow C, and accordingly, the elevating rail 38 also moves in the direction of arrow C. It will be moved up and down in the Z direction. In this way, each nozzle 35, 36 held in contact with the lifting rail 38 is moved up and down relative to the corresponding slide body 33, 34.

The sliding of each slide body 33, 34 in the direction of arrow X and the vertical movement of each nozzle 35, 36 are performed by the rotational drive of a drive shaft 48 as a drive unit. As shown in FIG. 3, this drive shaft 48 is supported by a bearing portion 49 disposed on the support frame 29, and is rotatably driven in the direction of the arrow. A pulley 50 is attached to the back side of the support frame 29 at the end of the drive shaft 48 . A bell 51 is suspended from the pulley 50, and the bell 51 is rotated by a motor (not shown). As a result, the driving force of the motor is transmitted to the pulley 50 via the bell) 51,
Therefore, the drive shaft 48 is rotationally driven in the direction of the arrow.

The drive shaft 48 includes a first cam 52 as a slide drive means for the first slide body 33, a second cam 53 as a slide drive means for the second slide body 34, and each nozzle 35.
．． 36 third cams 54 serving as elevating means are each pivotally supported.

Each cam 52, 53, 54 is rotated in the direction of the arrow by rotation of the drive shaft 48.

A first cam follower 56 is provided on the cam surface 55 of the first cam 52.
The cam follower 56 is attached to the center of the first swing rod 57. First swing rod 5
As shown in FIGS. 3 and 4, 7 is rotatably supported at its base end by a support shaft 57A supported by a support frame 29. As a result, the tip of the first swing rod 57 can swing in the direction of arrow E relative to the support shaft 57A. A first opposing cam follower 58 can be brought into contact with a position of the cam surface 55 of the first cam 52 that is opposed to the first cam follower 56 . The cam follower 58 is attached to the center of the first opposed swinging rod 59. First opposing swinging rod 5
9 has a base end rotatably supported by a support shaft 60 supported by the support frame 29. As shown in FIG. 1st
The opposing swinging rod 59 is thereby able to swing in the direction of arrow F about the support shaft 60, and one ends of two tension springs 61A and 61B are fixed to the rod 59. The other end of each of the tension springs 61A, 61B is fixed to the first swing rod 57, and as a result, the tension force of the two springs 61A, 61B is applied to the first cam follower 56 and the first opposing cam follower. 58 is always able to come into contact with the cam surface 55 of the first cam 52. The tip of the first swing rod 57 is connected to the first cam 5.
Due to the continuous rotation of 2, it is swung in the direction of arrow E, and the solid line and 2
It is reciprocated between the positions indicated by the dotted chain line (see Fig. 4),
A long hole 62 is provided at the tip of the swinging rod 57 that swings. A pin 64 provided at one end of the first operating body 63 is engaged with the elongated hole 62 . First operating body 63
is supported so as to be slidable in the direction of arrow X with respect to a guide hole 65 provided in the rod support portion 31B. 1st
The actuating body 63 is slid in the direction of arrow X through the swinging of the first swing rod 57 in the direction of arrow E, and the other end of the sliding actuating body 63 is supported by the guide rod 32. The first slide body 33 is coupled thereto. As a result, the first cam 52 is rotated and the first rocking rod 57 is rocked, thereby making it possible to slide the first slide body 33 in the direction of the arrow X. The first slide body 33 is reciprocated by a predetermined interval TI by one rotation of the first cam 52.

At this time, the first slide body 33 is set so that the nozzle 35 provided on the slide body 33 reciprocates between the pellet supply position 20 and the pellet alignment position 23. In this way, the pellet transfer nozzle 35 supported by the first slide body 33 is slid in the direction of the arrow X by the rotation of the drive shaft 48 as a drive unit, and the pellet transfer nozzle 35 is moved to the corresponding supply position 20.
and the alignment position 23.

The second cam 53 serving as a slide driving means for the second slide body 34 allows a second cam follower 67 to come into contact with a cam surface 66 . The second cam follower 67 is attached to the center of a second swing rod 68, and the base end of the rod 68 is rotatably supported by a support shaft 70 provided on the slide adjustment body 69. The slide adjustment body 69 is attached to the base ll
It is supported so as to be slidable in the direction of arrow X with respect to a guide section 71 provided above. The second swing rod 68 supported by the support shaft 70 is capable of swinging in the direction of arrow G at its distal end side about the support shaft 70. Of the cam surface 66 of the second cam 53, at a position opposite to the second cam follower 67,
The second opposing cam follower 72 can come into contact with it. This cam follower 72 is attached to the center of the second opposed swinging rod 73. As shown in FIG. 1, the second opposed swinging rod 73 is rotatably supported by a support shaft 74 supported by a support frame 29 at its proximal end. The second opposed swinging rod 73 is thereby allowed to swing in the direction of arrow J about the support shaft 74, and one end portions of two tension springs 75A and 75B are fixed to the rod 73. The other end of each of the tension springs 75A, 75B is fixed to the second swing rod 68, and as a result, the tension force of the two springs 75A, 75 is applied to the second cam follower 67 and the second opposing cam follower. 72 is always able to come into contact with the cam surface 66 of the second cam 53. The tip of the second swing rod 68 is swinged in the direction of arrow G by the continuous rotation of the second cam 53, and reciprocated between the positions shown by the solid line and the two-dot chain line (see FIG. 1). A long hole 76 is provided at the tip of the swinging rod 68. This long hole 7
6 includes a pin 78 provided at one end of the second operating body 77.
are engaged. The second actuating body 77 includes the rod support portion 3
It is supported so as to be slidable in the direction of arrow X with respect to a guide hole 79 provided in 1B. The second operating body 77
The actuator is slid in the direction of the arrow X through the swinging of the swing rod 68 in the direction of the arrow G, and the other end of the sliding actuator is coupled to the second slide body 34 supported by the guide rod 32. be done.

The second actuating body 77 is made slidable in the direction of arrow X by rotating the second cam 53 and swinging the second swinging rod 68. The second actuating body 77 is reciprocated by a predetermined interval T1 by one rotation of the second cam 53.
A pin 78 provided at one end is capable of reciprocating between the moving reference point Ml and the moving point N. The moving reference point M1 is
This can be set by adjusting the drive of a stepping motor 80 as a position adjusting means provided on the base 11. That is, the drive shaft 81 of this stepping motor 80 has
A screw shaft 83 supported by a bearing 82 is connected, and a threaded portion 84 of the screw shaft 83 is connected to a second swing rod 68.
The screw hole 85 of the slide adjustment body 69 that supports the base end of the slide adjustment body 69 is screwed into the screw hole 85 (see FIG. 1). The slide adjustment body 69 can be slid in the direction of arrow X by rotating the screw shaft 83 driven by the stepping motor 80. This makes it possible to position the support shaft 70, which is provided on the slide adjustment body 69 and supports the second swing rod 68, at the set reference point 86 through drive adjustment of the motor 80. When the support shaft 70 is positioned at the set reference point 86, the second
It becomes possible to set and position the pin 78 that engages with the elongated hole 76 at the tip of the swing rod 68 at the movement reference point Ml.

When the pin 78 is reciprocated between the moving reference point M1 and the moving point N, the pellet mounting nozzle 36 as a mounting section provided on the second slide body 34 moves the pellets to the uniform alignment position 23 and the lead frame 26. It will be reciprocated between the center positions 87.

That is, the nozzle 36 can be positioned above the pellet alignment position 23 with the pin 78 slid to the moving point N. On the other hand, the nozzle 36 is connected to the pin 78
The two pellet mounting positions 27A are positioned at the frame stop position 28 while the pellets are moved to the movement reference point M1.
, 27B, that is, above the transport center position 87.

The nozzle 36, which is moved toward the conveying center position 87 by the rotation of the second cam 53, is moved above one pellet mounting position 27A of the lead frame 26 by adjusting and moving the movement reference point of the pin 78 to the M2 position. It becomes possible to perform corresponding positioning. Further, by adjusting and moving the movement reference point of the pin 78 to the position M3, the nozzle 36 can be positioned above the other pellet mounting position 27B of the lead frame 26. Among the adjustment movements of the pin 78 to each of the movement reference points M2 and M3, the adjustment movement to the movement reference point M2 is performed by driving and controlling the motor 80 to slide the support shaft 70 of the slide adjustment body 69 to the first reference point 88. It is done by doing.

On the other hand, the adjustment movement of the pin 78 to the movement reference point M3 is performed by driving and controlling the motor 80 to slide the support shaft 70 of the slide adjustment body 69 to the second reference point 89.

The third cam 54, which serves as a means for raising and lowering each nozzle 35, 36, allows a third cam follower 91 to come into contact with a cam surface 90, as shown in FIGS. 3 and 6. The third cam follower 91 is attached to the center of a third swinging rod 92, and the rod 92 is rotatably supported by a support shaft 93 provided on the support frame 29 at the base end. As a result,
The third swinging rod 92 has a distal end that can swing in the direction indicated by the arrow with respect to the support shaft 93. Spring support fl provided in the support frame 29! One end of a tension spring 95 is fixed to 94 as shown in FIG. The other end of the tension spring 95 is fixed to the third swing rod 92, and as a result, the third cam follower 91 can be brought into contact with the cam surface 90 at all times by the tensile force of the tension spring 95. A connecting rod 9 is provided at the tip of the third swing rod 92.
One end of 6 is connected to the bottle. The other end of the connecting rod 96 is connected to the connecting arm 9 as shown in FIGS. 3 and 5.
7 and is rotatably connected in the direction of arrow Q.

The connecting arm 97 has a base end fixed to one end of the rotation shaft 44. As a result, the third cam 54 is rotated,
When the third swing rod 92 is accordingly swung in the direction indicated by the arrow, the connecting rod 96 is reciprocated in the direction indicated by the arrow R. When the connecting rod 96 is reciprocated in the direction of arrow R, the connecting arm 97 is swung in the direction of arrow Q, and the rotation shaft 44 is rotated in the direction of arrow C. When the shaft 44 is rotated in the direction of arrow C, the swinging arm 43 including the lifting rail 38 is moved up and down, thereby moving each nozzle 35, 36 in the up and down direction (direction of arrow Z).
It is possible to move up and down. The vertical movement of each nozzle 35, 36 is reciprocated between the ascending end position 98 and the descending end position 99 while the third cam 54 rotates once.

Next, the operation of the pellet mounting device according to the above embodiment will be explained.

The drive shaft 48 is rotated, and each of the first to third cams 52,53
．． When 54 is rotated in the direction of the arrow, first the first slide body 33 and the second slide body 34 are moved to the left as shown in FIG. At this time, the support shaft 70 of the slide adjustment body 69 is positioned at the set reference point 86. Each slide body 33
．． 34 is moved to the left end, the pellet transfer nozzle 3
5 is positioned above the pellet supply position 20, and a pellet mounting nozzle 36 is positioned above the pellet alignment position 23, respectively. In this state, each nozzle 35, 36 is lowered to the lowering end position 99 by rotation of the third cam 54. At this time, the XY table 1 is placed at the pellet supply position 20.
The pellet 19 to be extracted is positioned by the XY drive of 2, and the pellet 19 is extracted and held by the pellet transfer nozzle 35 that is lowered. On the other hand, the pellets 19 transferred from the supply position M20 and uniformly arranged by the pellet uniforming mold 24 are positioned at the pellet uniforming position 23. This pellet (19) is extracted and held by the pellet mounting nozzle 36 which is lowered.

When the pellets 19 are extracted and held by each nozzle 35 , 36 , each nozzle 35 , 36 is raised to the rising end position 98 by the rotation of the third cam 54 . The second slide body 34 is moved to the right as shown in FIG. 1 by the rotation of the second cam 53 and by the rotation of the second cam 53. This results in
Pellet transfer nozzle 3 provided on first slide body 33
5 will be moved and positioned above the pellet alignment position 23. On the other hand, in the case of the second slide body 34, the slide body 34 is moved to the right and the support shaft 70 of the slide adjustment body 69 is moved to the first reference point 88 by the driving of the stepping motor 80. As a result, the second
The bin 78 of the actuating body 77 is moved to the movement reference point M2 at the right end position of the actuating body 77 and is positioned, thereby positioning the pellet loading nozzle 36 above the pellet loading position 27A. It becomes possible.

When the nozzle 35 is positioned above the pellet alignment position 23 and the nozzle 36 is positioned above the pellet mounting position 27A as described above, each nozzle 35, 36 is positioned at the third cam 5.
4, it is lowered from the ascending end position 98 to the descending end position 99. When the pellet transfer nozzle 35 is positioned at the descending end position 99, the pellets 19 are released from the nozzle 35, and the pellets 19 are placed at the pellet alignment position 23. On the other hand, when the pellet mounting nozzle 36 is positioned at the lower end position 99, the pellet 19 is released from the nozzle 36. Pele (released) 19 is
The pellet is attached to the position 27A by means of an adhesive applied to the pellet attachment position 27A.

When the pellets 19 held in the nozzle 35 are transferred to the pellet alignment position 23 and the pellets 19 held in the nozzle 36 are installed in the pellet mounting position 27A, each nozzle 35, 36 is moved to the upper end position. Moved to 98. In this state, each nozzle 35, 36 is moved to its left end position by the rotation of the first cam 52 and the second cam 53. At this time, the support shaft 70 of the slide adjustment body 69 is
It is moved to the set reference point 86 and positioned. As a result, the pellet transfer nozzle 35 is moved to the pellet supply position 2.
0, and the pellet loading nozzle 36
is positioned above the pellet alignment position 23.

The nozzles 35 and 36 positioned above each position 20 and 23 perform the above-described lowering and raising operations to release the pellets 1 positioned at the respective positions.
9 can be extracted and retained. That is, at the pellet supply position 20, the pellets 19 to be extracted primarily by driving the XY table 12 are positioned, and at the pellet alignment position 23, the pellets 19 that have been aligned by the pellet alignment mold 24 are positioned. The position will be determined.

When a pellet 19 is picked up and held by each nozzle 35, 36, each slide body 33, 34 is moved to the right by rotation of the corresponding cam 52, 53. As a result, the pellet transfer nozzle 35 is moved and positioned above the pellet alignment position 23. On the other hand,
In the case of the second slide body 34, the slide body 34 is moved to the right and the support shaft 70 of the slide adjustment body 69 is moved to the second reference point 89 by the driving of the stepping motor 80. As a result, the bin 78 of the second actuating body 77 moves to the movement reference point M3 at the right end position of the second actuating body 77 and is positioned, thereby moving the pellet loading nozzle 36 above the pellet loading position 27B. It becomes possible to position the

When the nozzle 35 is positioned above the pellet alignment position 23 and the nozzle 36 is positioned above the other pellet mounting position 27B as described above, each nozzle 35, 36
The rotation of the cam 54 changes the position from the rising end position 98 to the descending end position 9.
9, the pellets 19 are transferred to the pellet alignment position 23, and the pellets 19 are transferred to the pellet mounting position 27B.
will be installed. As a result, the pellets 19 are positioned at the frame stop position 28 and are placed at the respective pellet mounting positions 27A and 27B arranged in parallel in the arrow X direction.
will be installed.

When the pellets 19 are mounted on the two pellet mounting positions 27A and 27B, the carrier 25 pitch-transfers the lead frame 26 in the direction of arrow B, and the frame holding position 28 is then loaded with pellets 19. Each pellet mounting position 27A, 27B to be mounted is determined. As described above, pellets 19 are sequentially attached to each of the pellet attachment positions 27A and 27B by the reciprocating movement of each nozzle 35, 36 in the direction of arrow X. In this way, the present device 10 can sequentially mount the pellets 19 at each of the pellet mounting positions 27A and 27B of the lead frame 26 that is transported in the direction of the arrow B.

Next, the operation of the above embodiment will be explained.

According to the pellet loading device 10 according to the above embodiment, the pin 7 of the second operating body 77 is
8 to each movement reference point M1. It becomes possible to adjust the position to M2 and M3. Thereby, the pellet 19 held by the pellet mounting nozzle 36 can be moved and positioned to correspond to the two parallel pellet mounting positions 27A and 27B. This eliminates the need to move and adjust the heavy drive unit each time according to each pellet mounting position 27A, 27B as in the past, and with a simple configuration, it is possible to move pellets 19 to each pellet mounting position 27A, 27B. Mounting can be done quickly and easily.

FIG. 7 is a front view showing a pellet loading device according to another embodiment of the present invention. This pellet mounting device 100 replaces the second cam 53 in the above embodiment with a cylinder device 1.
01, the second operating body 77 can be slid in the direction of the arrow X. That is, the cylinder device 101
is fixed to the support frame 29, so that the piston rod 102 can be driven in the direction of the arrow X. The tip of the piston rod 102 is pin-coupled to one end of the second actuating body 77. As a result, the second operating body 77 can be slid in the direction of the arrow X by driving the piston rod 102, and the pellet mounting nozzle 36 supported by the second sliding body 34 can be moved in the direction of the arrow X. becomes. The nozzle 36 can be positioned above the pellet alignment position 23 at the forward end position of the piston rod 102.

On the other hand, the retreating end position of the piston rod 102 is adjusted by a slide adjustment body 103 that is slid in the direction of arrow X. That is, the slide adjustment body 103 is connected to the screw shaft 10 connected to the drive shaft of the stepping motor 104.
5, and can be moved and adjusted in the direction of arrow X by driving the motor 104. The slide adjustment body 103 includes
A receiving member 106 is provided, and the receiving member 106 is moved in the left-right direction and is attached to the abutment plate 1 provided on the second operating body 77.
It is possible to match with 07. The receiving member 106 is made of plywood 10
7, the right movement end position of the second actuating body 77 can be regulated.

As a result, by adjusting the drive of the stepping motor 104, the position of the receiving member 106 is adjusted in the direction of the arrow X.
As in the above embodiment, the movement reference points M1 and M of the abutment plate 107
It becomes possible to adjust and move to each position of 2 and M3. As a result, it becomes possible to move and adjust the pellet mounting nozzle 36 above the corresponding pellet mounting positions 27A and 27B.

The other configurations and operations are the same as those of the previous embodiment.

[Effects of the Invention] As described above, the present invention provides a pellet mounting device that is capable of mounting pellets at each of a plurality of pellet mounting positions arranged on a substrate to be transported. a driving part; an actuating body that is reciprocated between a predetermined movement reference point and a moving point by the driving of the driving part; a mounting unit that holds the pellets that are moved back and forth between the two and aligned at a predetermined angle at a pellet alignment position, transfers the pellets onto a substrate, and allows the pellets to be mounted at a predetermined pellet mounting position; and a base; The position of the movement reference point of the actuating body can be adjusted so that the pellet placed on the substrate and transferred and positioned on the substrate by the mounting section is moved correspondingly to a predetermined pellet mounting position arranged on the substrate. Because it is equipped with a position adjustment means, the simple configuration allows pellet mounting work to be performed quickly and accurately at multiple pellet mounting positions.
1. It has the effect of being actually practical.

[Brief explanation of drawings]

FIG. 1 is a front view showing a pellet loading device according to an embodiment of the present invention, FIG. 2 is a plan view taken along the line ■-■ in FIG. 1, and FIG. 3 is a plan view taken along the line ■-■ in FIG. 4 is a sectional view taken along line IV-IV in FIG. 3, FIG. 5 is a plan view taken along line v-v in FIG. 1, and FIG. 6 is a sectional view taken along line v-v in FIG. FIG. 3 is a rear view taken along the line Vl-Vl, and FIG. 7 is a front view showing a pellet loading device according to another embodiment of the present invention. 1O1100... Pellet mounting device, 11... Base, 19... Pellet, 20... Pellet supply position,
23... Pellet alignment position, 26... Lead frame [substrate], 27A, 27B... Pellet mounting position,
36... Pellet mounting nozzle (mounting part), 48...
Drive shaft (drive unit), 77... second operating body (operating body),
80.104...Stepping motor (position adjustment means), 101...Cylinder device (drive unit), N...Movement point, Ml, M2, M3...Movement reference point. Agent Patent Attorney Osamu Shiokawa

Claims (1)

[Claims] (1) In a pellet mounting device that is capable of mounting pellets at each of a plurality of pellet mounting positions arranged on a substrate to be transported, a drive unit disposed on a base and a drive unit drive the pellets to a predetermined position. A working body that is reciprocated between a moving reference point and a moving point, and a working body that is disposed on the working body and is moved back and forth between the pellet uniform position and the substrate by the reciprocating movement of the working body, and the pellet uniform position is moved back and forth between the pellet uniform position and the substrate. A mounting section that holds pellets aligned at a predetermined angle, transfers the pellets onto a substrate, and allows the pellets to be mounted at a predetermined pellet mounting position; and a position adjustment means that can adjust the position of the movement reference point of the actuating body so that the pellet to be transferred and positioned is moved correspondingly to a predetermined pellet mounting position arranged on the substrate. Pellet loading device.