CDA PC44 Instruções de Operação descarregar pdf (Página 70)

4-14 Operating Instructions

Example

Cartoning

with

Stitch

(continued)

Determining Maximum Stitch Bead Length - We determined this value

using the following general rule:

• Duration length (in seconds) x

0.20-

Max. stitch bead length (in

seconds)

In this example, the maximum stitch bead length is 0.158 seconds:

•

0.788x

0.20-0.1576

seconds (157.6 ms)

We rounded the value to 0.158 seconds {158 ms). The PC40 stitch

capability would allow us to specify stitch beads as long as 0.158

seconds each.

However, we wanted more and shorter stitch beads for our application.

We ran

several test patterns and

got

the following results.

Stitch

Bead Lengths

Number

Beads

50% Coverage

0.050 8

0.060 7

0.070 6

0.082

Based on the test patterns and our

application, we specified beads

0.050 seconds long at 50% coverage. These values were recorded on

the pattern log (Figure 4.1 0).

Stitch

was programmed and noted on the pattern log for channel 1.

MEMORY

(CIRC

ONE) A

CHANNEL

TRIGGER

(CIRCLE ONE)

EDGE

SYMBOL

.....

RCLE

ONE)

TRAN

SITIONS - I - I - I

(VALuEs)

328

116

1 _ I _ I _ I

ITCH - 0

•

(OFF)

{ON)

10m0

CHANNEL

TRIGGER

(CI

RCLE ONE)

(!)

EDGE

SYMBOL

(CIRCLE

ON£)

TRANSITIONS - I - I - I

(VALUES)

2951393

049j,

1471 _ I

STITCH

0 - • - X

(OFF)

{ON)

- 1

lr.)

- I

I I

oso

(0-1.023)

--9

- I

I I

(0-1.023)

Figure

4.10-

Pattern log for example 2

108389A

-28 1

C Nordson Corporat

oon

1993

All

R1g

served

1 2 ... 65 66 67 68 69 70 71 72 73 74 75 ... 103 104

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