JPH0583446B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a plate material transport mechanism, and more particularly to a plate storage mechanism for storing processed plate materials in an unloader magazine.

[Prior Art] Conventionally, transfer mechanisms for transferring plate materials such as carriers and lead frames on which samples are placed at a constant pitch have been disclosed, for example, in Japanese Patent Publication No. 55-7944 and Japanese Patent Application Laid-Open No. 1983-1989.
The one shown in Publication No. 162415 is known.

In this structure, a feed pin that can be moved vertically and reciprocally horizontally is inserted into a feed hole or groove (hereinafter, the feed hole will be described) of a plate material, and the feed pin is fed at a constant pitch. After the plate material is transferred by such a transfer mechanism and the processing is completed, the feed pin repeats vertical and horizontal reciprocating motions to feed the plate piece by pitch into the magazine and store it therein. In this case, in order to completely store the rear end of the plate in the magazine, the rear end of the plate must be completely accommodated in the magazine unless the feed movement of the feed pin on the magazine side coincides with the end of the magazine.
That is, if the feed pitch of the feed pin changes depending on the product, the plate may not be stored in the magazine as described above, so conventionally, a pusher device that moves vertically and horizontally in front of the magazine is provided, and this pusher device pushes the rear end of the plate material so that it is stored in the magazine.

[Problems to be Solved by the Invention] The above-mentioned prior art requires a transfer mechanism that feeds the plate material at a constant pitch and a pusher device that moves vertically and horizontally separately, so the structure is complicated and expensive. In addition, if the product type changes and the feed pitch of the plate material changes, the pusher device must be replaced accordingly, so multiple pusher devices are required, which also makes the device expensive and It takes a lot of time to replace and adjust them.

An object of the present invention is to provide a sheet material transfer mechanism that does not require a separately driven device, can store a sheet material in an unloader magazine with a simple structure, and can easily handle changes in feed pitch. be.

[Means for Solving the Problems] The problem with the prior art described above is that a feed correction plate is placed in front of the feed pin on the side of the unloader magazine that stores the plate material so as to be rotatable in the vertical direction on the feed arm. The length from the tip end surface of the feed pin to the tip surface of the feed correction plate is the distance from the magazine to the rear of the plate material when the feed pin can no longer feed the plate material. This is resolved by ensuring that the length is greater than or equal to the length to the end.

[Function] Since the feed correction plate is rotatably mounted on the feed arm, during normal constant pitch feed operation, it only comes into contact with the upper surface of the plate and does not act on the plate.

When the feed pin retreats and descends after the feed pin finishes feeding the plate material to the magazine, the feed correction plate provided in front of the feed pin is located at the rear end of the plate material, so the feed pin moves forward. When the feed correction plate moves together with the feed pin, the rear end of the plate is pushed and the plate is completely stored in the unloader magazine. Furthermore, if the feed pitch of the plate material changes, this can be easily handled by simply replacing the feed correction plate with a feed correction plate of an appropriate length.

[Example] Hereinafter, an example of the present invention will be described with reference to FIG. The figure shows only the transfer mechanism portion on the side of the unloader magazine 1. The plate material 2 is fed along the guide grooves of the guide rails 3 and 4 arranged opposite to each other.
A feed plate 5 is disposed on the side of the guide rail 3 and is vertically moved and horizontally reciprocated by a vertical movement mechanism and a horizontal reciprocating mechanism (not shown). Feed arms 6 and 7 are fixed to the feed plate 5 and extend above the feed hole 2a of the plate material 2 guided by the guide rails 3 and 4. Feed pins 8 and 9 are fixed to the tips of the feed arms 6 and 7, respectively, to be inserted into the feed holes 2a of the plate material 2. The above is a well-known structure.

A support plate 10 is fixed on the feed arm 7 on the side of the magazine 1, and a shaft 11 whose axis is disposed in the horizontal direction is rotatably supported on the support plate 10. One end of a correction plate arm 12 extending in front of the feed pin 9 is fixed to the shaft 11, and a feed correction plate 13 is fixed to the other end of the correction plate arm 12. Also, the feed correction plate 13 is connected to the feed arm 7.
A mounting plate 14 is fixed to the feed arm 7 so as to be able to move up and down along with the feed arm 7, and a feed correction plate 13 is placed on this mounting plate 14.

The operation will be explained below with reference to FIG. 1 and FIG. 8. As shown in FIG. 1, a state in which a part of the plate material 2 is stored in the magazine 1 and the feed pin 9 is positioned above the last feed hole 2a of the plate material 2 will be explained. Note that the feed pin 8 operates in the same manner as the feed pin 9 to feed the next plate material 2, and its operation is well known, so a description thereof will be omitted here.

From the state shown in Fig. 1, the feed plate 5, that is, the feed arm 7
When the feed pin 9 is lowered, the feed pin 9 is inserted into the feed hole 2a of the plate material 2, as shown in FIG. Further, the correction plate arm 12 also descends together with the feed arm 7, but since the plate material 2 exists below the feed correction plate 13, the feed correction plate 13 comes into contact with the upper surface of the plate material 2 and stops descending. Next, when the feed arm 7 is moved one pitch in the direction of the magazine 1 as shown in FIG. 3, the plate material 2 is fed by the feed pin 9.

Next, the feed arm 7 is raised and the feed pin 9
passes through the feed hole 2a of the plate material 2. Further, as the feed arm 7 rises, the correction plate arm 12 is also raised together. Next, when the feed arm 7 is moved back by one pitch, the feed pin 9 is moved downwards, and when the feed arm 7 positioned above the rear end of the plate 2 is moved forward, the feed pin 9 causes the plate 2 to move as described above. In the same manner as above, it is fed one pitch, resulting in the state shown in FIG. From this point on, even if the feed pin 9 performs one cycle of feed operations of raising, retreating, lowering, and advancing, the feed pin 9 cannot feed the plate material 2 into the magazine 1.

When the feed arm 7 is raised in the state shown in FIG. 4, the correction plate arm 12 also rises, resulting in the state shown in FIG. 5. Next, when the feed arm 7 is moved back, the feed pin 9 is located at the front end of the next plate 2, as shown in FIG. Next, when the feed arm 7 is lowered, the correction plate arm 1 is lowered as shown in FIG.
2 also descends together. In the above-described operation, since the plate material 2 exists below the feed correction plate 13,
The feed correction plate 13 came into contact with the upper surface of the plate material 2 and was stopped from descending, but in the case of FIG. 6, the plate material 2 does not exist below the feed correction plate 13, so as shown in FIG. The feed correction plate 13 descends together with the feed pin 9 and is located at the rear end of the plate material 2. Next, when the feed arm 7 is advanced one pitch, the feed correction plate 13 pushes the rear end of the plate 2, and the plate 2 is completely stored in the magazine 1 as shown in FIG.

In this way, the plate material 2 can be completely stored in the magazine 1 by the normal feeding operation of the feed pin 9, and there is no need to provide a pusher device that operates separately from the feed pin 9 as in the prior art. In addition, even if the feed pitch changes depending on the product, the feed correction plate 13 is suitable for the feed pitch.
You can replace it with

[Effects of the Invention] As is clear from the above description, according to the present invention, plates can be stored in an unloader magazine with a simple structure without the need for a separately driven device.
Moreover, even if the feed pitch changes, it can be easily handled.

[Brief explanation of the drawing]

FIG. 1 shows an embodiment of the present invention, in which a is a plan view, b is a front sectional view, FIGS. 2 to 8 show feeding operations, FIG. 2 is a front sectional view, and FIG. is a plan view, FIG. 4b is a front sectional view, and FIG. 4a is a plan view.
Figure b is a front sectional view, Figure 5 is a front sectional view, and Figure 6 is a front sectional view.
Figure a is a plan view, Figure b is a front sectional view, Figure 7 is a front sectional view, Figure 8 a is a plan view, and Figure 8 b is a front sectional view. 1: Magazine, 2: Plate material, 2a: Sprocket hole, 6,
7: Feed arm, 8, 9: Feed pin, 13: Feed correction plate.

Claims (1)

[Claims] 1. A feed pin that is inserted into a feed hole, etc. of a plate material, and a feed arm to which this feed pin is fixed and moves vertically and horizontally, and the feed pin is inserted into a feed hole, etc. of a plate material, and the feed pin is In a plate transfer mechanism that transfers a plate by moving it in the transfer direction, a feed correction plate is provided on the forward side of the feed pin on the unloader magazine side that stores the plate by placing it on the feed arm so as to be freely rotatable in the vertical direction. The length from the tip of the feed pin to the tip of the feed correction plate is the length from the magazine to the rear end of the plate when the feed pin can no longer feed the plate. A board transport mechanism characterized by having a length greater than or equal to .