JP3238786B2 - Lead frame or printed circuit board feeding 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 lead frame or printed circuit board stored in a magazine rack in a layered manner.
The present invention relates to an apparatus for feeding out one by one from the magazine rack.

[0002]

2. Description of the Related Art Heretofore, in this type of feeding apparatus, a projecting member extending in a horizontal direction is provided at a portion of a side of an elevating table with respect to a magazine rack so as to reciprocate with respect to the magazine rack. By moving the member forward into the magazine rack, the lead frame in the magazine rack is extended from the inside of the magazine rack at the tip of the projecting member.
With this configuration, it is necessary to secure enough space on the side of the magazine rack to provide a protruding member with a length longer than the lead frame feeding stroke. It increased.

Therefore, Japanese Patent Laid-Open Publication No.
Japanese Patent No. 5528 discloses a feeding device of this type, in which a bracket member disposed on the side of a lifting table with respect to a magazine rack has a vertically extending vertical guide groove, and an arc-shaped guide groove at the upper end of the vertical guide groove. And a laterally extending guide groove which communicates so as to extend in the lateral direction through the protruding member formed in a belt shape having a cross section of an arch shape by a leaf spring. The protruding member is fixedly attached to a reciprocating head that moves up and down along the vertical guide groove, and the reciprocating head reciprocates in the vertical direction. With the movement, the tip of the protruding member is turned horizontally and horizontally by the guide action of the lateral guide groove, and is advanced toward the inside of the magazine rack. , It has proposed a feeding apparatus that feeds the lead frame in the magazine rack from the magazine rack.

[0004] This prior art feeding device has the advantage of being able to reduce the lateral width of the device because the projecting member can be partly arranged in the up-down direction by being constructed as described above.

[0005]

However, in this feeding device of the prior art, the distal end of a band-shaped projecting member formed into an arch-shaped cross section by a leaf spring is guided in a horizontal and lateral posture by a lateral guide groove. Therefore, it is not possible to adjust the height position of the tip of the protruding member so as to raise or lower it, and accordingly, the height position of the tip of the protruding member is set in the magazine rack. In order to adjust to the height position of the lead frame in the above, since the entire guide member must be configured to be adjustable in the vertical direction, the structure becomes complicated, and a great deal of trouble is required for the height adjustment. Need, and
There is a problem that the height cannot be finely adjusted.

An object of the present invention is to solve the above-mentioned problems of the prior art.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above technical object, the present invention relates to a vertical guide groove extending in a vertical direction, provided on a bracket member disposed on a side of a lifting platform with respect to a magazine rack. At the upper end of the guide groove, a lateral guide groove communicating with the guide groove so as to extend laterally via an arc-shaped guide groove is provided. A feeder which is inserted into the guide groove so as to freely move in the longitudinal direction across both of them, and the lower end of the projecting member is fixed to a reciprocating head which moves up and down along the vertical guide groove. In the apparatus, the lateral guide groove is inclined obliquely downward from the horizontal plane toward the magazine rack by an appropriate angle, and the lateral guide groove is inserted into the way of the projecting member. A pressing roller which is adapted to press downwardly and vertically adjustable providing structure.

[0008]

[Work] In this configuration, by moving the reciprocating head up and down, the tip of the protruding member reciprocates with respect to the magazine rack in a state where the tip end portion is turned sideways by the sideways guide groove. Since the tip end of the protruding member moves forward into the magazine rack by the upward movement of the reciprocating head, the lead frame can be extended from the magazine rack into the magazine rack.

When the middle of the projecting member is pressed downward by the pressing roller provided in the lateral guide groove, the cross section of the projecting member is changed from an arch shape to a flat shape by the pressing of the pressing roller. As a result, the portion of the projecting member ahead of the pressing roller is bent so as to incline upward with respect to the longitudinal direction of the lateral guide groove. Is higher,
Moreover, since the height position increases substantially in proportion to the increase in the pressing force by the pressing roller, the height position at the tip of the protruding member can be arbitrarily adjusted by the vertical movement of the pressing roller. It is.

In this case, since the adjustment of the height position at the tip end of the protruding member by the pressing roller is an adjustment from a lateral guide groove to a higher direction, when the lateral guide groove is horizontally oriented, The height position at the tip of the protruding member cannot be adjusted below the horizontal plane including the lateral guide groove.

On the other hand, according to the present invention, the lateral guide groove is inclined obliquely downward from the horizontal plane toward the magazine rack by an appropriate angle, so that the tip end of the projecting member is provided with the inclined lateral guide. Since the groove is inclined obliquely downward, and the obliquely downward inclined state exhibits a form of being bent upward by pressing by the pressing roller, adjustment of the height position at the tip end of the protrusion member, It can also be performed in the area below the horizontal plane, in other words, the area for adjusting the height position can be expanded to both the area below and above the horizontal plane. It is.

[0012]

Therefore, according to the present invention, the adjustment of the height position at the tip end of the protruding member to the height position of the lead frame or the printed circuit board in the magazine rack is performed as in the prior art described above. Complexity,
In addition, there is an effect that the operation can be performed extremely easily and finely without increasing the number of operations.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. In this figure, reference numeral 1 denotes a magazine rack in which a plurality of lead frames A are stored in layers, and the magazine rack 1
The lead frames A are mounted so as to be moved up and down at intervals in the up-down direction of the lead frames A.

Reference numeral 3 denotes a bracket member which is provided upright on a side portion of the elevating table 2, and a hollow cylindrical guide member 4 is attached to a side surface of the bracket member 3 so as to extend in a vertical direction. A piston 5 made of a magnet is slidably inserted into the guide member 4, and a reciprocating head 6 made of a magnetic material magnetically attached to the piston 5 is provided outside the guide member 4. Is slidably fitted.

By supplying compressed air into the lower chamber 4a in the guide member 4 from the air supply port 7 and moving the piston 5 upward, the reciprocating head 6 is moved upward following the upward movement of the piston 5. The compressed air is supplied from the air supply port 8 into the lower chamber 4b in the guide member 4 to move the piston 5 downward, whereby the piston 5
The reciprocating head 6 is configured to move down following the downward movement.

Reference numeral 9 denotes a projecting member formed in a strip shape having an arch-shaped cross section by a leaf spring, and a lower end portion of the projecting member 9 is attached to the reciprocating head 6 by the projecting member 9.
Are fixed so as to extend in the vertical direction. A vertical guide groove 10 extending in the vertical direction is provided on a side surface of the bracket member 3, and the protruding member 9 is slidably inserted into the vertical guide groove 10 while the bracket member 3 is inserted. On the upper surface of the vertical guide groove 11, a lateral guide groove 11 extending laterally toward the magazine rack 1 is provided so as to communicate with an upper end of the vertical guide groove 10 via an arc-shaped guide groove 12. The protruding member 9 is also slidably inserted into the lateral guide groove 11 and the arc-shaped guide groove 12 so as to guide the protruding member 9 to bend from the vertical direction to the lateral direction and change the direction. At the tip of the protruding member 9, a contact piece 13 for the lead frame A is provided in the magazine rack 1.

The lateral guide groove 11 is inclined obliquely downward from the horizontal plane 14 toward the magazine rack 1 by an appropriate angle (θ).
At one position, a pressing roller 15 that presses the middle of the protruding member 9 downward is provided movably up and down by a bracket 16, and this pressing roller 15 is attached to an adjusting screw 17 provided on the bracket 16. It is configured to move up and down.

In this configuration, when the reciprocating head 6 is moved upward by supplying compressed air into the lower chamber 4a in the guide member 4, a projecting member 9 having a lower end fixed thereto is provided with a guide groove 10, It moves in the longitudinal direction in a state where it is fitted to 11,12. Then, while the protrusion member 9 moves upward along the longitudinal direction, its tip portion is changed in the lateral direction by the arc-shaped guide groove 12 and the lateral guide groove 11, and advances toward the magazine rack 1. The lead frame A in the magazine rack 1 is moved by the forward movement as shown in FIG.
As shown by a two-dot chain line in FIG.

In this case, the lateral guide groove 1
When the pressing roller 15 provided on the lower portion 1 is moved downward by the adjusting screw 17 to push the projecting member 9 in the downward direction, the projecting member 9
The cross section is deformed from an arch shape to a flat shape by pressing, so that the portion of the projecting member 9 ahead of the pressing roller 15 is inclined upward with respect to the longitudinal direction of the lateral guide groove 11. Because it will bend
Due to this bending, the height position of the tip end of the protruding member 9 in the contact piece 13 increases, and the height position increases substantially in proportion to the increase in the pressing force by the pressing roller 15. The height position of the tip of the protruding member 9 in the contact piece 15 can be arbitrarily adjusted by the vertical movement of the pressing roller 15.

The adjustment of the height position of the contact piece 13 at the tip of the protruding member 9 by the pressing roller 15 is an adjustment from the lateral guide groove 11 to a higher direction. In this case, the height position of the tip end of the protruding member 9 in the contact piece 13 cannot be adjusted in a direction below a horizontal plane including the lateral guide groove 11.

On the other hand, according to the present invention, the lateral guide groove 11 is inclined obliquely downward from the horizontal plane 14 toward the magazine rack 1 by an appropriate angle (θ), so that the pressing roller 11 The portion beyond 15 is inclined obliquely downward by the inclined lateral guide grooves 11, so that the obliquely downward inclined state is bent upward by the pressing of the pressing roller 15. , The protruding member 9
Adjustment of the height position of the contact piece 13 at the tip can also be performed in an area below the horizontal plane 14, in other words, the area where the height position is adjusted is located across the horizontal plane 14. It can be extended to both the lower and upper regions.

[Brief description of the drawings]

FIG. 1 is a perspective view of an apparatus according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a sectional view taken along line IV-IV of FIG.

FIG. 5 is an enlarged sectional view taken along line VV of FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Magazine rack A Lead frame 2 Elevating table 3 Bracket member 4 Guide member 6 Reciprocating head 9 Projection member 10 Vertical guide groove 11 Lateral guide groove 12 Arc-shaped guide groove 13 Contact piece 14 Horizontal surface 15 Press roller

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) H01L 21/50 H05K 13/02

Claims (1)

(57) [Claims] A bracket member disposed on a side of a lifting platform with respect to a magazine rack has a vertically extending guide groove, and an upper end of the vertically extending guide groove extends laterally through an arcuate guide groove. And a projecting member formed in a strip shape having a cross-section arch shape by a leaf spring can be freely extended in the longitudinal direction across the longitudinal guide groove and the lateral guide groove. In the feeding device, the lower end of the projecting member is fixed to a reciprocating head that moves up and down along the vertical guide groove. A pressing roller that tilts obliquely downward toward the side and presses the middle of the projecting member downward in the lateral guide groove can be adjusted up and down. Feeding device of a lead frame or a printed circuit board, characterized in that provided in the.