JPH055735B2 - - Google Patents

Description

Detailed Description of the Invention (Industrial Application Field) The present invention provides a substrate transport device that automatically supplies a substrate to a work station that processes the substrate and discharges the processed substrate from the station. Regarding.

(Prior Art) This type of apparatus generally includes a work station for processing substrates, a carry-in magazine in which unprocessed substrates are stored, and a carry-in magazine in which processed substrates are stored. The substrates in the carry-in magazine are carried to a work station by means such as a belt conveyor and processed there. The processed substrate is further carried out from the work station by means such as a belt conveyor, and is conveyed into the carry-in magazine.

Incidentally, in a substrate transfer apparatus, it is desired to suppress interference between component devices, reduce the size of the entire apparatus, and perform accurate positioning. In contrast, the work area of the substrate transfer device described above is equipped with a turntable (work station) on which the transferred substrate is placed and an inserter machine for processing the substrate, and the turntable is rotated when processing the substrate. By doing so, the board is positioned with respect to the inserter machine.
There is one shown in Publication No. 56-81402. ), therefore, when using a fixed-position means such as a belt conveyor to carry in and out substrates, the turntable and the belt conveyor interfere with each other, making it impossible to keep them close to each other. However, it is not possible to shorten the length of the device in the transport direction, and it is also not possible to accurately position the turntable and thus the board with respect to the inserter machine, so that the above requirements have not been met.

(Object of the Invention) An object of the present invention is to provide a substrate transfer device that can suppress mutual interference between a substrate processing device and a substrate transfer means, reduce the overall size of the device, and accurately position a substrate. It is about providing.

(Structure of the Invention) The present invention provides a carry-in magazine device in which a board is stored, a carry-out magazine device provided on the substrate transport direction side of the device at a predetermined distance from the device, and both magazine devices. a work station disposed between the substrate processing apparatus and having a rotary table on which the substrate is placed and an X-Y table holding the rotary table, and movable to the substrate processing apparatus provided near both magazine apparatuses; , a loading station which is located between the carry-in magazine device and the work station and between the work station and the carry-in magazine device, and which is away from the work station when the substrate is not being transported and approaches the work station when the substrate is being transported; and a removal station, a pusher stand movable along the conveyance path of the substrate constituted by the three station surfaces, and a pusher stand provided on the pusher stand and located on the conveyance path surface at the rear end of the substrate. By being equipped with a retractable pusher that has an operating position where it can freely come into contact and a rest position that is spaced from the conveyance path, the pusher can be retracted and retracted along the conveyance path by moving the loading station close to the work station during substrate conveyance. The substrate is carried into the work station by the X-Y table, the X-Y table is moved to the substrate processing equipment, the processing position of the substrate is set by rotating the rotary table, the substrate is processed, and this post-loading station is separated from the work station. At the same time, Pushya returns to the origin,
The substrate is placed in a standby state for the next transfer, while the processed substrate is discharged to the removal station in close proximity to the work station of the removal station, and then the removal station is separated from the work station.

(Embodiment) The present invention will be described below with reference to the embodiment shown in the drawings. As shown in FIGS. A loading station located between the loading magazine device and the working station, a loading station located between the loading magazine device and the working station, a loading station located downstream of the loading magazine device, and a work station located between the loading and unloading magazine devices. It consists of a station and a removal station located between the station and the removal station.

Each of these parts will be explained below.

The magazine device on the carry-in side includes a magazine supply conveyor 2 that horizontally moves the magazine 1 provided with a board storage shelf (not shown), and a magazine supply conveyor 2 that vertically moves the magazine 1 conveyed from the conveyor 2. An elevator device 3 is provided at the top of the device 3 to feed out the substrates 4 in the magazine 1 one by one onto a loading station.

The above-mentioned landing station is provided adjacent to the elevator device 3, and a belt conveyor 6 for conveying the substrate 4 is attached to the station. In this loading station, the substrate 4 is conveyed by a belt conveyor 6, and when it reaches the tip of the station, it is moved downstream by the operation of an air cylinder (not shown), and is moved to the downstream direction by a conveying guide on the work station, which will be described later. It's starting to get close. Additionally, when the air cylinder is inactive, the landing station returns to a position 250 mm away from the work station.

Similar to the carry-in magazine device, the carry-out magazine device includes an elevator device 7 that lowers the magazine, and a magazine 1 inside the elevator device 7.
and a discharge conveyor 8 for discharging.

A removal station is provided adjacent to the elevator device 7, and a belt conveyor 9' for conveying the substrates 4 toward the elevator device 7 is attached above the station. This removal station is movable in the direction of the work station by an air cylinder (not shown), and is brought into close proximity to the conveyance path on the work station during movement. Also, like the loading station, when the air cylinder is inactive, the unloading station returns to a position 250 mm away from the work station.

A work station is provided between the loading and unloading stations. This work station is provided with an X-Y table a that is movable in the X-Y plane direction, a turntable b that is rotatable on the X-Y table, and a work board c that is positioned on the turntable. There is. A fixed transport guide d and a movable transport guide e whose position can be changed according to the size of the substrate 4 are provided on the work board. Further, an insert machine (not shown) for processing the substrate 4 is provided above the work station. The head center O of the component insertion head of the insert machine is located at a position offset from the conveyance guide connecting the loading station and the unloading station, so when inserting the component onto the board 4 conveyed onto the turntable, -Move the Y table toward the center of the head and rotate the turntable to set it at an appropriate position.

A pusher table 10 is provided extending from the loading station to the work station. This pusher table 10 is located higher than these stations, and there are 1
Pair of pusher cylinders 11 and 12 (however, 12
(not shown) is installed. The cylinder 1
The base ends of swing links 13 and 14 (however, 14 is not shown) are rotatably attached to the tips of pistons 11a and 12a of pistons 1 and 12, and the tips thereof are rotatably attached to the pusher base 10. Can be installed freely. The base ends of pusher stands 15, 16 are fixed between the ends of the links 13, 14, and as shown in the figure, when the pistons 11a, 12a extend, the pushers 15, 16 rotate approximately 90 degrees. The distal end thereof assumes an operating position A located above the landing station and the working station. Conversely, when the pistons 11a and 12a retreat,
The pushers 15, 16 rotate counterclockwise in the opposite direction to the above, and assume a rest position B in which they are approximately parallel to the loading station and the work station.

A pusher stand sliding cylinder 17 is provided along the longitudinal direction of the pusher stand 10, and a roller 18 rotatably attached to the tip of the piston 17a is configured to frictionally engage with the pusher stand 10. It's getting old. This roller 18 is located closer to the work station than the pusher table 10 and can also frictionally engage with a guide rail 19 extending along the work station.
Therefore, the pusher base 10 can be moved in its longitudinal direction in accordance with the forward and backward movements of the piston 17a.

At the tip of the guide rail 19, a shaft bearing 2 is provided.
0 is attached to the shaft bearing portion 20, and a base end portion of a stopper 21 is rotatably attached to the shaft bearing portion 20. This stopper 21 can take two positions: an operating position X in which its tip is located above the work station, and a rest position Y in which it is parallel to the work station. The tip of a piston 22a of a stopper cylinder 22 is attached between both ends of the stopper 21, and the stopper 21 can be rotated by the forward and backward movement of the piston 22a.

Next, the operation of the device having the above configuration will be described.

When the magazine supply conveyor 2 is activated,
The magazine 1 moves to the left in FIGS. 1 to 3 and is placed on the elevator platform 23 of the elevator device 3. This elevating table 23 has a drive unit 24
It is driven by and rises. When the rise stops,
The feed roller 5 operates, and the substrates 4 in the magazine 1 are conveyed one by one onto the belt conveyor 6 on the loading station.
is carried to the tip (downstream end) of the mounting station. When the substrate 4 reaches the same position, a cylinder for a mounting station (not shown) is activated, and the mounting station moves toward the work station. Then, the station stops when the tip end reaches a predetermined distance above the work station.

On the other hand, the detachment station operates similarly to the attachment station. That is, at the same time that the cylinder for the mounting station operates, the cylinder for the removal station (not shown) also operates, and as a result, the removal station moves in the direction of the work station, and its tip is placed above the station by a predetermined distance. It stops when it enters.

When a detection means (not shown) detects that the mounting station has stopped, the pusher cylinders 11 and 12
operates, and the pistons 11a and 12b extend, so the pushers 15 and 16 move approximately from the horizontal position.
It rotates 90 degrees and its tip is located above the loading and unloading stations. The tips of these pushers 15 and 16 are set to be located at the rear end of the base plate 4 located above the respective station.

Next, the pusher table sliding cylinder 17 operates,
When the piston 17a extends, the roller 18 provided at its tip is frictionally engaged with the pusher stand 10, so the pusher stand 10 moves in the downstream direction, and along with this, the pusher stand 10 moves downstream.
5 and 16 also move downstream. Pushsia 15,
16, its tip end is connected to the substrate 4 in the operating position A.
When the pusher table 10 moves, the pushers 15 and 16 push the substrate 4 from the rear end, and as a result, the substrate 4 is conveyed downstream and is moved to the mounting station. The upper substrate 4 will be loaded into the work station, and the substrate 4 on the work station will be loaded onto the removal station.

As described above, the stopper 21 is provided at a predetermined position on the work station, and when the rear end of the substrate 4 on the station passes, its tip reaches the top of the station and assumes the operating position. This position is the position where the board 4 comes into contact, and therefore, the board 4 conveyed by the pushers 15 and 16 stops at this position when its tip comes into contact with the stopper 21. .

The advantages of this stopper 21 are as follows. That is, the substrate 4 has various sizes from large to small.
Therefore, unless some modification is made to the device depending on the dimensions of the substrate 4, variations will occur in the device for stopping the substrate 4. In other words, the board 4 has large dimensions.
This is because the substrate 4 reaches the work station in a shorter time than the smaller substrate 4 due to the size difference. Therefore, in order to eliminate such variations, it is necessary to
Some modifications must be made to the equipment depending on the dimensions of the equipment. But this is too much trouble to bear.

Therefore, the stopper 21 is used. In other words, if the exact position of the stopper 21, the stroke speed of the pusher table sliding cylinder 17, and the distance from the tip of the piston 17a to the stopper 21 during retraction are known in advance, the substrate 4
This means that the time required for the tip to reach the stopper 21 can be determined. Therefore, select the board 4 with the shortest size, measure the time it takes for the board 4 to reach the stopper 21, and set this measurement time in a timer.
The operation of the pusher table sliding cylinder 17 is made to stop when the set time of the timer expires. With this setting, when the base plate 4 comes into contact with the stopper 21, the base plate 4 stops and the operation of the pusher table sliding cylinder 17 also stops.

If the size of the substrate 4 to be processed is larger than that of the substrate 4, it will reach the stopper 21 in a shorter time than the substrate 4 with the smallest size, and therefore the substrate 4 will stop. Since the set time of the timer has not expired, the pusher table sliding cylinder 17 continues to operate until the set time expires.

When the set time of the timer expires in this way, the substrate 4 that was on the work station has reached the top of the removal station.

Thus, when the substrate 4 on the loading station reaches the work station and the substrate 4 on the work station reaches the unloading station, the pushers 15, 16 and the stopper 21 return to their rest positions, and the pusher base 10, the loading station, and the unloading station are moved. The stations also return to their original positions.

Next, the X-Y table a of the work station moves in a direction perpendicular to the conveyance guide to move the substrate 4 directly below the head of an inserter machine (not shown) provided at the work station. Then, the inserter machine operates and inserts the component into a predetermined position on the board 4. During this time, the substrate 4 on the unloading station will be stored in the magazine 1 of the elevator device 7 by the push cylinder 25 and the conveyor 9', and once the storage is completed,
The push cylinder 25 returns to its original position. Also, during this time, the substrate 4 is supplied onto the mounting station from within the carry-in magazine.

Incidentally, the empty magazine 1 in the elevator device 3 on the carry-in side is discharged by the discharge conveyor 2a provided above the supply conveyor 2, and on the carry-out side, the magazine 1 is discharged by the discharge conveyor 2a provided above the discharge conveyor 8. 8a allows empty magazines 1 to be fed into the elevator system 7.

(Effects) As is clear from the above, in the present invention, substrates are transported by a movable loading/unloading station and a pusher that can appear and retract from the substrate conveying path, so that the work station and the loading/unloading station are connected to each other. interference,
By displacing the loading/unloading station, it is possible to appropriately avoid the loading/unloading station according to the conveyance of the board, and by making the loading/unloading station closer to the work station, the length of the entire device in the substrate conveying direction and its size can be reduced. It is possible to reduce the size of the substrate, and to eliminate defects in board positioning that may occur due to interference and the like, thereby improving board setting accuracy.

Furthermore, since the conveying means moves along a plane, the apparatus can be simplified and downsized.

Furthermore, since the structure is simple, maintenance is easy, and since substrates can be fed and discharged in one operation, the working time is shortened.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of the device according to the present invention, FIGS. 2 a, b, c, and d are side views of the same device, and FIGS. 3 a,
b, c, and d are plan views of the same device, and FIG. 4 is an explanatory diagram showing the operation of the same device. ... Carrying-in magazine device, ... Carrying-out magazine device, ... Work station, ... Loading station, ... Detachment station, 4... Board, 10... Pusher stand, 15, 16... Pusher, A... Working position, B...rest position.

Claims (1)

[Claims] 1. A carry-in magazine device in which substrates are stored, a carry-out magazine device provided on the substrate transport direction side of the device at a predetermined distance from the device, and a magazine device arranged between both magazine devices and capable of processing substrates. The device has a rotary table on which the substrate is placed and an X-Y table that holds the rotary table, and a work station that is movable to the substrate processing device provided near both magazine devices, and a work station that works with the magazine device on the carry-in side. a loading station and a unloading station, which are respectively located between the work station and the carry-in magazine device and are separated from the work station when the substrate is not being transported and approach the work station when the substrate is being transported;
a pusher stand that is movable along the conveyance path of the substrate and is configured by two station surfaces; 1. A substrate transfer device comprising: a pusher that is retractable and has a rest position spaced from the transfer path.