JPS582105A - Magazine transfer apparatus - Google Patents

Abstract

PURPOSE:To provide a magazine transfer apparatus which can drive a magazine holder moved vertically endlessly by a predetermined pitch so as to sequentially store articles discharged from a working machine in the magazine holder. CONSTITUTION:A feeder 11 connected to a working apparatus 12 are connected to magazine transfer apparatus 13, 14 mounted on both sides of the feeder. The magazine transfer apparatus includes L-shaped magazine holders 23 disposed at fixed intervals on a chain or a belt 21 stretched between upper and lower sprockets 16, 18, and is adapted to place an article to be worked, for example a lead frame 26, on the magazine holder 23 one by one. The transfer device 23 is transported step by step according to the movement of the working apparatus 12 so as to put in and out the article to be worked efficiently.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a magazine transfer device that stores lead frames, al[, carrier plates, etc.] used in a manufacturing and inspection facility 1 for semiconductor components and the like.

Semiconductor parts are stored in magazines for convenient transport and handling during manufacturing and inspection l1. On the bag, die bonder,
For automatic manufacturing *EIB such as wire bonders, semiconductor parts are normally indispensable, as semiconductor parts are automatically supplied from a magazine on the loading side and automatically transferred to a magazine on the unloading side.

By the way, storage magazines for semiconductor components are usually stacked magazines that store plate-shaped components such as lead frames stacked up and down. A transfer device is required to raise and lower the parts at each storage pitch.

A conventional transfer device of this type has a feed screw 1 disposed vertically, a motor 2 that intermittently drives the feed screw 1 in the same direction, and a feed screw 11 screwed together, as shown in FIG. The loading side magazine 4 loaded on the magazine receiver 3 is transferred from the bottom to the top at a predetermined pitch, and the stored parts 6 are automatically transferred by the feeding device 7. The magazine 5 on the unloading side moves from the top to the bottom to softly feed the parts 6 that have been processed or inspected as requested.

However, in such a magazine transfer device, only one magazine 4 on the loading side! ! When one magazine S on the unloading side becomes full, the magazine must be replaced manually, and the magazine receiver 3 must be returned to its original position by lowering one side and raising the other. During this work, manufacturing and inspection work was halted, posing a serious obstacle to improving work efficiency.

The present invention was made in view of the drawbacks of the above-mentioned conventional devices.
It is an object of the present invention to provide a magazine transfer device that makes it possible to waste wasted time due to magazine exchange.

Hereinafter, the present invention will be explained with reference to illustrated embodiments.

Figure 2 shows 11 and 111 of the magazine transfer device according to the present invention.
An example of the positive I [WJ, No. 311 is a cross-sectional view of the part indicated by the arrow Mujintai in Figure 2, and No. 411 is the arrow B-B in Figure 2
FIG. 2 is a cross-sectional view of a portion indicated by ll. Reference numeral 10 denotes a pedestal, on the top of which is provided a feeding device 11 and a central @tC working device 12. 13 is a loading side magazine transfer device attached to the pedestal 10, and 14 is a similar unloading side magazine transfer device, each having the same mechanism and arranged symmetrically.

Therefore, if we explain the structure of the magazine transfer devices 13 and 14 from the unloading side, 15 is a frame, 16 is a
18 is a pair of first sprockets fixed to a shaft 17 rotatably supported on the upper part of the frame 15, and 18 is $11.
A pair of iris sprockets fixed on a shaft 19 below the sprocket 16 and also rotatably supported on the frame 15, these sprockets 16, 18 may be pulleys. ! O is a motor fixed to the frame 15 and whose output shaft is connected to the shaft 17, and 21 is a fcli such as a pair of belts or chains that circumferentially connect the first sprocket 16 and the J12 sprocket 18 in the opening direction.
lll material (hereinafter referred to as belt), 22 is two bells)
j! 1, one each on the outer circumference of the bottle, 2ν zero set, multiple bottles arranged at equal intervals, 23 is the pin 22
A pair of L-shaped magazine receivers 24 are fixed to the frame 15 and provided along the circumference of the bell 19, and a groove 24m formed therein One end 231 of the magazine receiver 23 is engaged with and guided. 25 is a magazine placed on the magazine receiver 23.

FIG. 5 shows the front wall of the magazine 25, and the opposing inner wall of the rectangular box-shaped case 25m with at least one side open.
A large number of #c pairs of grooves 25b are provided, respectively.
A semiconductor component, such as a lead frame 26, is placed in this groove 25b.
A large number of items are inserted and stored in piles.

No. 6111 indicates a position detection mechanism for intermittently transferring the sheets 2Sb formed in the magazine 25 at each pitch, that is, at each pitch of the stacked storage of the lead frame 26. Passage of the magazine 25 through the groove 2Sb is detected by this.

This position detection mechanism may be a method in which, for example, the motor 20 is driven by a pulse motor 1-H motor, and the amount of rotation thereof is measured to convert and detect the amount of elevation of the magazine 2s.

Next, the operation of the magazine transfer device having such a configuration will be explained. First, attach lead frame 2 to magazine 25.
6 are stacked and stored, some of these are placed on the magazine receiver 23 of the loading side transfer device 13, and then the feed device 11
The vehicle will be placed on standby at a level below the guide route. On the other hand, several empty magazines 25 are placed on the magazine receiver 23 of the transfer device 14 on the unloading side, and are kept on standby at a level above the guide path of the feed device 11.

Thereafter, when the apparatus is operated overtime, the motor 20 on the loading side rotates to rotate the first sprocket 16, causing the belt 21 to move and transporting the magazine 25 upward. When the groove 25b at the top of the magazine 25 is at the same level as the guide path of the feed device 11, the photo sensor 30 operates to stop the motor 2G and cause the magazine 25 to
stop the transfer of Then, the first lead frame 26 is sent out from the magazine 25 by means not shown, and is sent by the feeding device 11 to the working device 12, where it is worked. When the first lead frame 26 is sent out,
It is detected by a detection device (not shown), and the loading side motor 20 is activated again by the signal, and the magazine 25 is transferred upward until the next groove 25b reaches the same level as the guide path of the feeding device 11, and the magazine 25 is transferred to the next lead frame. Completed preparations to send out 26.

On the other hand, the lead frame 26 whose work has been completed is transferred to the feeding device 1.
1 to the magazine 25 on the unloading side. The empty magazine 25 on the unloading side is transferred downward by rotating the unloading side motor 2G, and is stopped when the lowest part $25b reaches the same level as the guide path of the feeding device 11. and,
The sent lead frame 26 is placed in the magazine 25 at $2.
Store it by inserting it into 5b. After that, the unloading side motor 20 is operated overtime again, and the magazine 25 is moved downward until the next groove 25b reaches the same level as the guide path of the feeding device 11, in preparation for storing the next lead frame 26. Complete.

FIG. 7 shows a false embodiment of the magazine 25 position detection mechanism. A slit 1 [31 having a slit 31JI having the same pitch as the groove 25b is attached to the magazine 25,
This is configured to be detected by a photosensor 3o.

FIG. 8 shows still another embodiment of the magazine 25 position detection mechanism. An angle 32 is provided on the loading-side magazine transfer device 13 (see FIG. 2) side of the feeding device 11, and a shaft 34 to which a detection arm 33 is fixed is rotatably attached to the angle 32.

A projection 33a parallel to the lead frame 26 is provided at one end of the detection arm 33, and the photosensor 35 is fixed to the feeding device IN by holding the other end of the detection arm 33.

Therefore, when the loading-side magazine 25 in which the lead frame 26 is housed is raised by the drive of the motor 2o, the detection arm 33 rotates clockwise and illuminates the photosensor 35, thereby positioning the lead 7L/-m 26. will be published. This detection controls the motor 200 rotation amount.

As described above, with the magazine transfer device for storing semiconductor components according to the present invention, it is possible to continuously transfer multiple magazines, so it is necessary to replenish the loading side magazine and take out the unloading side magazine. It is possible to do this without stopping the movement of the work equipment, and work efficiency is significantly improved compared to conventional methods.

[Brief explanation of drawings]

Figure 1 is an original drawing showing a conventional magazine transfer device.
The figure is a front view showing an embodiment of the magazine transfer device of the present invention, #! Figure 3 is a cross-sectional view of the part indicated by the arrow B-B in Figure 2I, Figure 4 is a new view of the part indicated by the arrow B-B in Figure 2, and Figure 5s is a front view of the magazine. is an example of a position detection mechanism for constant pitch feeding of a magazine;
No. 7g also shows an example of a magazine position detection mechanism, (Jun is a Seiryo drawing, (b) is a Confucian drawing, and No. 8 shows yet another example of a magazine position detection mechanism. 1) is a partially cut-out diagram, *iwWi, (Cj is a rear view of a part of the photosensor. 11... Feeding device, 12... Working device. 13... Loading side magazine $ sending device, 14...
・Unloading side magazine feeding device, 16-jN sprocket, 1g-1122 sprocket, 2
0--Motor 1 21--Belt, 22--Bin 23--Magazine holder, 25--Magazine,
25b...Groove, 26...Lead frame,
3o-・Photo sensor. 1II Figure 2 Figure 3 Figure 7WJ

Claims (1)

[Claims] A transmission member such as a belt or chain that circumferentially revolves around at least two rotating bodies facing each other vertically, and a large number of magazines that are arranged in a chain on this transmission member and that store parts. A magazine transfer device comprising a magazine receiver and a feed control means for driving at least one of the rotary bodies to open the plate and transporting the magazine receiver intermittently at a predetermined pitch.