JP2566501Y2 - Lead frame alignment loading machine - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an aligning and stacking machine for separating lead frames from a large plate on which a large number of lead frames are engraved and aligning and stacking them.

[0002]

2. Description of the Related Art In the manufacture of an etched lead frame, the lead frame is multi-faced on a coil-shaped or sheet-shaped metal large plate and processed collectively as a large plate. (Half-etched during etching)
Is connected to the large plate. Then, after the resist was peeled off, washed and dried, the joint portion was manually bent to separate each lead frame from the large plate, and the lead frames were aligned and stacked on a jig.

[0003]

[Problems to be solved by the invention] However, the lead frame is difficult to touch by hand, and is very easily deformed (especially the inner lead portion). Since the proportion of varieties that are more easily deformed is increasing, careful work is required, it takes time, and skill is required. The present invention minimizes the occurrence of defects such as pin bending, pin entanglement and deformation of the lead frame, and avoids touching with hands as much as possible.
An object of the present invention is to provide a lead frame aligning / stacking machine capable of performing work quickly without skill.

[0004]

According to the present invention, a loading table is provided on a guide rail so as to be reciprocally movable, and a stopper is provided at a substantially intermediate portion of the guide rail by providing a small gap with the upper surface of the loading table. A lead frame aligning / stacking machine which is provided with a positioning member which is laterally mounted and has an abutting surface orthogonal to the stopper member, and further includes a loading table below the stopper member and the positioning member. It is.

[0005]

On the table, a twist is applied to the two corners of the processed lead frame large plate to separate each lead frame from the large plate, and the separated lead frames are placed randomly on the table. Become. Next, each lead frame is abutted against the abutment surface of the positioning member with a rod-shaped member, and other lead frames are successively arranged in parallel with this lead frame, and then the table is moved in the direction of the stopper member. Then, the ends of the lead frames are aligned and aligned by the stopper member. When the table is further moved, the table moves under the stopper member and passes by. However, the lead frame on the table is blocked from passing by the stopper member, and the movement of the table keeps the lead frame aligned on the loading table. To fall. Such operations are repeated, and when a predetermined number of lead frames are aligned and dropped on the loading table one after another, the loading table is lowered and the lead frame is taken out.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 1 denotes a table on which a lead frame is mounted. At least the surface of the table 1 is made of glass, plastic, or the like, and the lead frame is slid. It's easier.
The table 1 is reciprocally movable on guide rails 4 and 5 formed on the tops of the side walls 2 and 3, respectively. The stopper member 6 is laid horizontally with a small gap, and an abutment surface 7 orthogonal to the stopper member 6 is provided.
The positioning member 8 having the following. Further, a loading table 9 is provided below the stopper member 6 and the positioning member 8.
The loading table 9 can be moved up and down along a guide 10, and the distance from the table 1 can be kept constant by a sensor.

[0007] In order to carry out the work using the lead frame aligning and loading machine shown in the figure, as shown in FIG.
The lead frame 11 is separated from the large plate by twisting the lead frame large plate on the table 1 and slid on the table 1 to abut against the contact surface 7 of the positioning member 8. When the table 1 is moved after the lead frames 11 are arranged in parallel one after another, the ends of the lead frames 11 are aligned by the stopper members 6 and aligned. When the table 1 is further moved, the table 1 moves below the stopper member 6, but since the gap between the upper surface of the table 1 and the stopper member 6 is small, the lead frame 11 is prevented from passing by the stopper member 6. Then, it finally falls on the loading table 9 in the aligned state. Such operations are repeated, and the lead frames 11 aligned on the loading table 9 are stacked. In order to stack a predetermined number of sheets, the interval between the table 1 and the loading table 9 is maintained at a predetermined interval using a sensor. Is preferred. Thus, when a predetermined number of lead frames 11 are stacked, the loading table 9 is lowered, and the stacked lead frames 11 are taken out in an aligned state.

[0008]

As described above, according to the present invention, the lead frame separated from the large plate on the table is abutted against the positioning member, and is arranged in parallel. The lead frames are aligned without touching them, and at the same time they are dropped and stacked on the loading table, minimizing the occurrence of defects such as pin bending, pin entanglement and deformation of the lead frame, without the need for skilled work. ,
Work time can also be extremely reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is an explanatory diagram of an operation state of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Table 2 Side wall 3 Side wall 4 Guide rail 5 Guide rail 6 Stopper member 7 Abutment surface 8 Positioning member 9 Loading table 10 Guide 11 Lead frame

Claims (2)

(57) [Scope of request for utility model registration] 1. A loading table is provided on a guide rail so as to be reciprocally movable, and a stopper is laterally provided at a substantially middle portion of the guide rail with a small gap provided between the loading table and the upper surface of the loading table. A positioning member having an abutting surface perpendicular to the positioning member, and a loading table provided below the stopper member and the positioning member side. 2. The lead frame aligning and loading machine according to claim 1, wherein said loading table is movable up and down.