JPH087678Y2 - Substrate transfer device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a board transfer device suitable for storing a board on which electronic parts are mounted by soldering in a magazine in, for example, mounting and transfer steps of electronic parts.

[0002]

2. Description of the Related Art For example, a board on which electronic components are mounted and soldered is stored in a magazine in the final step. At that time, as a pusher for pushing the substrate into the magazine, a pusher as shown in FIG. 2 has been conventionally used. In FIG. 2, reference numeral 2 is a cylinder that strokes in the left-right direction in FIG. 2, and reference numerals 6a, 6b, and 6c are pushers provided at the tip of the plunger. The state of the pusher 6a in FIG. 2 indicates that the pusher is separated from the conveyor 8, that is, the pusher is in the pushing take-off state. Further, the state where the pusher 6b indicates that the pusher 6b starts to push the substrate 12a in order to store the substrate 12a in the magazine, that is, the pusher is in the pushing take-on state. Further, the state of the pusher 6c represents a state where the pusher 6c stores the substrate 12c in the magazine 4.

Such a series of operations is performed by the reciprocating stroke of the cylinder 2. By the series of operations in which the substrate 12a reaches the pushers 6a, 6b and 6c, the substrate 1
When the storing operation of 2c is performed, the substrate 12b to be stored next is waiting at the position S shown in FIG. That is, it stops at the position L from the position of the pulley 10 and waits for the front substrate 12a to be stored in the magazine 4. After the substrate 12a is accommodated in the magazine rack 4 by the pusher as shown by 12c, the plunger of the cylinder 2 retracts to push the pusher 6a.
Return to the position indicated by. Then, the pin 11 fixed there
As a result, the pusher 6a swings against the elastic force of the spring 7, and the tip of the pusher 6a rises from above the conveyor 8. After that, the conveyor 8 is intermittently driven by the pulley 10,
The substrate 12b is moved to the transport start position by the pusher 30. Then, in the same manner as before, this substrate 12b
Are stored in the magazine 4.

FIG. 3 shows another example of the conventional magazine storage pusher, but the substrate is stored by substantially the same operation as in FIG. The cylinder 2a operates the pusher 16 in the vertical direction. The state where the pusher 16 is lowered onto the conveyor is the pushing take-on state, and the state where the pusher 16 is raised above the conveyor is the pushing take-off state. . By repeating this, the boards 18a and 18b are sequentially placed in the magazine rack 4
It is the same as the above-mentioned device.

[0005]

In the device shown in FIG. 2, the pusher has its tip on the conveyor 8 as shown by 6b even when it returns to the left in FIG. Only by returning to the position shown by (5), the front end is lifted up from the conveyor 8. In the meantime, the next substrate 12b has to stand by at the position S in FIG. 2, so that there is a problem that the overall transfer (storage) efficiency is poor and the cycle time of the substrate storage operation becomes long.

On the other hand, in the case of the apparatus of FIG. 3, the pusher 1
Since 6 can be moved up and down at any position, it is conveyor 8
Can be returned in a state of being separated from the above, and the next substrate 18b can be transported to the starting position of the pushing operation during this time. Therefore, the cycle time for pushing out the substrate can be shortened as compared with the apparatus shown in FIG. However, in addition to the drive mechanism that reciprocates the pusher 16, an actuator (cylinder) for driving the actuator up and down, a valve for driving the actuator, and the like must be additionally provided. As a result, the device becomes complicated and the cost of the device increases. An object of the present invention is to solve these problems and to provide a substrate transporting device having a short cycle time for pushing out a substrate with a simple structure.

[0007]

In order to solve the problems In order to solve the problems] In the present invention, a substrate 20a which has been transported on the conveyor 8, the 20b, extruded from the upper conveyor 8 group
In the plate conveying device, a vertically movable pusher 30 that is reciprocally driven in a direction parallel to the conveyor 8 , a guide roller 33 that is rotatably supported in a fixed positional relationship with the pusher 30 , and a pusher 30 of the pusher 30 . The lower guide rail that guides the guide roller 33 so that the pusher 30 travels on the conveyor 8 over the entire stroke.
31 and an upper guide rail 32 on the lower guide rail 31 , which guides the guide roller 33 at an intermediate portion during the entire stroke of the pusher 30 , and an upper guide rail 32 . Rotate the base end to the tip position
It is pivotally attached and its tip touches the lower guide rail 31 under its own weight.
The guide from the tip of the upper guide rail 32 to the lower guide
Guide bar 3 forming a downward slope over the rail 31
4 is provided.

[0008]

[Action] In the transport device for the substrate according to the present invention, when the Pusshi <br/> turbocharger over 30 reciprocates, by the guide roller 33 travels up and down the guide rails 32, 31, the pusher
It regulates the height of the 30 back and forth. That is, Guy
The drag roller 33 moves over the guide rail 31 in the lower stage
Tip of guide rail 34 of idrail 32
Pusher 30 moves on conveyor 8
proceed. And the guide roller 33 is the upper guide.
When passing the tip side of the rail 32, the tip is lower due to its own weight.
Remove the guide bar 34 that was hitting the guide rail 31 of
Push up against the gravity of the upper end of the upper guide rail 32
Get out of the edge. Then, the guide bar 34 is gravity again.
It falls, and its tip hits the lower guide rail 31
From the upper guide rail 32 to the lower guide rail 31
A gradient is formed across. Forward movement of this pusher 30
At the time of production, the substrates 20a and 20b should be on the conveyor 8.
If the substrates 20a and 20b are
It can be extruded from the conveyor 8.

Next, when the pusher 30 returns to its original position,
Then, as described above, the guide lever 34 returns to its original position.
From the upper guide rail 32 to the upper guide rail 3
Since the down slope over 1 is formed,
Ra 33 is along the slope formed by this guide lever 34.
Climb up and ride on the upper guide rail 32. In addition, Guy
While the drag roller 33 travels on the upper rail 32,
In order to return to the
The pusher 30 on the conveyor 8
It Therefore, the pusher 30 is the substrate 2 on the conveyor 8.
Do not push back 0a and 20b. And the guide roller
The guide bar 34 of the guide rail 32 having the upper stage 34 is provided.
At the end that is not covered,
It falls on the guide rail 31, which causes the pusher 30 to
It is placed on the conveyor 8 again.

[0010]

Embodiments of the present invention will now be described in detail with reference to the drawings. As shown in FIG. 1, a pusher mechanism is installed immediately before the magazine 4. That is, the guide member 19 having the upper and lower two guide rails 32 and 31 is fixed, and the timing pulley 22 and the timing belt 24 driven by the motor M are mounted thereon. A slide unit 26 is fixed to the timing belt 24, and a block 28 is provided below the slide unit 26 so as to be vertically movable.
A spring 35 is mounted between and. This block 26
A guide roller is rotatably supported by the shaft. Further, a pusher 30 is attached to the lower portion of the block 26. The timing belt 24 reciprocates the slide unit 26 in parallel with the conveyor 8 with a predetermined stroke.

The guide roller 33 is the guide member 1 described above.
It runs along the guide rails 31 and 32 of 9. The lower guide rail 31 is arranged in parallel with the conveyor 8,
The timing belt 24 is formed to have a length that covers the entire stroke of the guide roller 33. The upper guide rail 32 is arranged on the lower guide rail 31 in parallel therewith, and is formed to have a length that covers only an intermediate portion of the entire stroke of the guide roller 33. Further, the right end in FIG. 1 of this upper guide rail 32, one end of the guide bar 34 is pivotally rotatably, the other end of the guide bar 34 is hit on the lower guide rail 31. As a result, the guide rail 31 has a slope between the end of the upper guide rail 32 and the lower guide rail 31.

FIG. 4 shows the movement of the guide roller 33 rolling on the two guide rails 31, 32. That is, the guide roller 33 is E → A → B → C → in FIG.
In the order of D, the pusher 30 directly or indirectly connected to the guide roller 33 is reciprocated while moving up and down. When the guide roller 33 is advanced in the right direction in FIG. 4 the guide rail 31 of the lower, the guide roller 33 passes pushes up the guide bar 34, after the guide roller 33 has passed therethrough, the guide bar 34
Returns, and a gradient is formed between the end portion of the upper guide rail 32 and the lower guide rail 31. Therefore, when the guide roller 33 returns to the left in FIG. 4, the guide roller 33 is guided by the guide bar 34, rides on the upper guide rail 32, travels on it, and returns.

FIG. 5 is a sectional view taken along the line PQ in FIG. 4, showing the vertical relationship of the guide rails 21 and 32 in the guide member 19. FIG. 6 is an enlarged view of the movement of the guide bar 34 in FIG. 4, and the guide bar 3 when the guide roller 33 rolls from the position C to the position D.
4 movement is shown. Next, the transport and storage operation will be described with reference to FIG. The slide unit 26 temporarily returns from the origin x to the start position y. As a result, the guide roller 33 moves down to the lower guide rail 32. In this position, the pusher 30 connected to the block 28
Is on the conveyor 8 as indicated by reference numeral 30a, and the substrate 20a on the conveyor 8 can be pushed. That is, the pusher 30 is in the pushing take-on state.

Then, from this state, the motor M is rotated and the timing belt 24 is run in the direction of P1,
The slide unit 26 is moved in the z direction from the start position y. At this time, since the guide roller 33 moves on the lower guide rail 31, the pusher 30 is moved to 3
It moves on the conveyor 8 from the position of 0a to the position indicated by 30b, and the substrate 20a on the conveyor 8 is pushed out. As a result, the substrate 20 is inserted into the magazine rack 4 from the position 20a as shown by 20b.

Then, when the slide unit 26 returns in the direction opposite to the z direction, the guide roller 33 is guided by the guide bar 34 and moves up to the upper guide rail 32 as described above, so that both the pusher 30 and the conveyor 8 are conveyed. Away from the top, pass over it and return to its original position. That is, the pusher returns in the pushing take-off state. During this time, the next substrate 20b can be moved to the pushing start position by the conveyor 8.

In this way, the pusher 30 repeats the pushing-on operation and the pushing-off operation to sequentially insert the substrates 30 into the magazine rack 4. The magazine rack 4 inserts the substrates into the shelves by an elevating mechanism (not shown) each time the substrates 20 are inserted one by one, ascending (or descending) by one shelf. In FIG. 1, 20b is a state in which the substrate to be stored in the magazine rack 4 next time is waiting on the conveyor 8.

In this apparatus, as described above, the pusher is raised and the returning operation is performed, so that the cycle time of the pushing operation can be shortened as compared with the conventional carrying and storing operation. Further, since the drive mechanism only needs to include the timing belt as described above, it can be realized by a simple device.

[0018]

As described above, according to the transporting device of the present invention, the pusher can be moved up and down at both ends of the stroke of the pusher in accordance with the reciprocation of the pusher only by the drive mechanism for reciprocating the pusher. With a simple structure, the cycle time of the substrate pushing operation can be shortened.

[Brief description of drawings]

FIG. 1 is a schematic side view of a substrate storage / conveyance apparatus showing an embodiment of the present invention.

FIG. 2 is a schematic side view of a substrate storage / conveyance device showing a conventional example.

FIG. 3 is a schematic side view of a substrate storage / conveyance device showing another conventional example.

FIG. 4 is a side view of the vicinity of a guide member for explaining the movement of the guide roller.

5 is a sectional view taken along line PQ in FIG.

FIG. 6 is an enlarged side view of an essential part of the guide member for explaining the movement of the guide bar of the guide member.

[Explanation of Codes] 8 Conveyors 20a, 20b Substrate 30 Pusher 33 Guide roller 31 Lower guide rail 32 Upper guide rail 34 Guide bar

Claims (1)

[Scope of utility model registration request] 1. A conveyor (8) substrate which has been conveyed on (20a), a (20b), the conveying device for the substrate to push from above the conveyor (8) is reciprocated in a direction parallel to the conveyor (8) Vertically movable pusher
(30) and the pusher (30) in a fixed positional relationship
Rotatably supported by the guide roller (33), wherein the pusher over the whole stroke of the pusher (30) (30) guides the guide roller (33) to travel on conveyor (8) lower Guide rail (3
1) and on the lower guide rail (31) ,
An upper guide rail (32) that guides the guide roller (33) at an intermediate portion of the entire stroke of the pusher (30) , and a base end thereof is rotatably attached to a tip position of the upper guide rail (32). The tip of the
Guide rail on the upper tier that hits the idrail (31)
From the tip of (32) to the lower guide rail (31)
And a guide bar (34) forming a downward slope.