BM料架治具使用手册.pdf - 第56页

4.1 Adjusting Wheel Position Feeder Inspection Unit 4.1−13 DX1OEC−31−240−B0 3. Rotate the positioning pin to adjust so that the feed wheel tooth may fall within the standard value range of the stop position. (Secure the …

Feeder Inspection Unit

4.1 Adjusting Wheel Position

4.1−12

DX1OEC−31−240−B0

Adjustment Procedures [Pneumatic Feeder]

• Seen from the front of the feeder (from the side feed wheel is visible)

Feed wheel

Back stop lever

Back stop eccentric pin

Stopper eccentric pin

Feed claw

Back stop eccentric pin

Stopper eccentric pin

• Seen from the back of the feeder

1. Loosen the set screws for back stop eccentric pin and for stopper eccentric pin using a screwdriver

and a box wrench.

2. Rotate the back stop eccentric pin to adjust so that the feed wheel tooth may fall within the standard

value range of the stop position. Then secure the back stop eccentric pin.

3. Rotate the stopper eccentric pin and make adjustment so that the feed claw tooth may be engaged

with the root of the ratchet wheel. Then secure the stopper eccentric pin.

4. Feed the feeder to check the feed wheel tooth position every six teeth. Repeat this check five times

and make sure the position falls within the above−mentioned standard range. (This is for measuring

several points within one complete turn.)

If the wheel tooth edge not within the range, make readjustment from the step 1.

=HINT=

Setting the ‘FEED TIMES’ switch between 2 and 4 when feeding makes adjustment easier.

Adjustment Procedures [Pneumatic Double Feeder]

Feed wheel

Positioning pin

Back stop eccentric pin

Feed claw

Back stop lever

1. Close the main cock of the air for the adjust unit. (This stops supplying air.)

2. Loosen the bolts for back stop eccentric pin and for positioning pin using a screwdriver and a box

wrench. (Use a screwdriver and a box wrench.)

4.1 Adjusting Wheel Position

Feeder Inspection Unit

4.1−13

DX1OEC−31−240−B0

3. Rotate the positioning pin to adjust so that the feed wheel tooth may fall within the standard value range

of the stop position. (Secure the pin temporarily.)

4. Reciprocate the link lever about 10 times and make sure the position falls within the standard range

on the average.

Link lever

Carrier tape

5. Reciprocate the link lever slightly (not to let it be fed by one pitch) and rotate the back stop eccentric

pin so as not to move the tooth top of the feed wheel.

6. In this state, tighten the back stop eccentric pin temporarily and check that the tooth top of the feed

wheel does not move when reciprocating the link lever slightly.

If the tooth top of the wheel moves when the link lever is moved, make readjustment from the step 3.

7. After adjustment, re−tighten the back stop eccentric pin and positioning pin. The procedure is

completed after checking the followings.

=CHECK=

• Reciprocate the link lever and make sure the feed wheel tooth may fall within the standard value

of the stop position.

• When reciprocating the link lever slightly, check that the tooth of the feed wheel does not move.

(In other words, the wheel does not move by one pitch even if the link lever is moved.)

Adjustment Procedures [Motorized Feeder]

For motorized feeders, changing to the adjustment mode enables the position of the feed wheel to be

fine−adjusted with accuracy of 0.05 mm.

=REFERENCE=

Refer to the ‘Operation Manual of the Tape Feeder’ for details on the adjustment mode.

After adjustment, proceed the feed wheel and check the feed wheel tooth position every 12 teeth. Repeat

this check five times and make sure the position falls within the above−mentioned standard range.

=HINT=

For motorized feeders, setting the length of feed to 48 mm allows you to proceed to 12 teeth every

time feeding is carried out. Therefore, it is advisable to set the length of feed to 48 mm when

making checks.

Y direction

(Feed direction)

0.025 mm

Graduation of scope: 0.025 mm/1 scale

Edge of wheel

X direction

(Tape width

direction)

Feeder Inspection Unit

4.1 Adjusting Wheel Position

4.1−14

DX1OEC−31−240−B0

4.1.6 Checking the Wheel Position in Tape Width Direction

Procedure

1. Wheel position check

Check if the edge of the wheel is within the

range of standard value.

=Specification=

Feeder type Standard

For 0603 ±0.1 mm

8to24mm ±0.15 mm

32 to 72 mm ±0.3 mm

2. If within the range

Hold down the lever to proceed the wheel by

six teeth and make checking similarly.

=REFERENCE=

• Check the wheel position for a complete

turn and if the wheel falls within the

standard range, the position is correct.

• Make checking every 12 crests regarding

the motorized feeders.

3. If out of the range

For the models in the table below, the wheel position in tape

feed direction can be adjusted.

Feeder type

Specifications

(Width)

Pneumatic feeder 8 mm * Note 1

Pneumatic double feeder 8mm

Motorized feeder 12 to 72 mm

* Note 1: Some feeders may not be adjusted depending on the time they were manufactured.

=REMARKS=

If the wheel position is deviated considerably due to fall or some impact, repair is needed.

=HINT=

Air may leak from the air conductor depending on the setting condition of the tape feeder on the

clamp stand.

In such a case, the position of the tape feeder is likely to be improper. Set it properly on the clamp

stand again.