Brother DB2-DD7100 Manuale utente

,......_

____

) )

DB2-DD7100

Single needle direct drive straight lock stitcher with thread trimmer

PRODUCT

MANUAL

D Outline ...................................... 1

Specifications ............................. 1

Sales points ............................... 3

Optional parts ............................ 7

DIP

switch functions ................... 9

Parameter setting flowchart .........

Parameters ................................

Memory switch setting flowchart ..

II Memory switches .......................

Connector configuration

...............

mPerspective view ........................

From the library of: Superior Sewing Machine & Supply LLC

D Outline

•

What

the

DD7100?

007100

the newest

and

most up-to-date single needle straight lock stitcher

our range, with a

motor which

integrated into the machine head. With the adoption

new

lubrication system and

further improvements to conventional functions, this machine

designed

give better cost

performance by parts sharing and thorough review

the design.

• The motor, which used to

equipped under the table, is built into the machine head,

and

directly coupled to the upper shaft.

• A dry-head tank lubrication method is adopted.

• Measures

reduce machine operating noise and increase safety have been taken to produce a

more comfortable working environment.

• Specification

-1

provided to flexibly cope with the sewing of difficult-to-sew materials

addi-

tion to general thin materials.

Specifications

•

Machine

head specifications

082-007100-

99-l

1 I I

Device Lower thread detector Application Operation panel

Thread Automatic

wiper presser lifter

3 --

4 0 -

o I None 1 *Difficult-to-sew B-20

. 1 I Installed

and

thin materials 8-40

3 Medium heavy B-100

materials

9 0 0 5 Heavy materials

)

007100

Single needle direct drive straight lock stitcher

with thread trimmer

• Difficult-to-sew material specifications refers to the ability to

sew

a range

materials from general thin materials to materials made from new

synthetic fibers, without puckering or unevenness

the seam occurring.

()

From the library of: Superior Sewing Machine & Supply LLC

)

Specification DD7100-001

DD7100-003

DD7100-005

Application

For

thin

and

For medium heavy For heavy materials

difficult-to-sew

materials

Max. sewing speed 4,000 spm 5,000 spm 3,500 spm

Max. stitch length

4.2

5 mm

Needle bar stroke 29

Thread take-up stroke 57.4

Type

feed dog 4 rows 4 rows (rough)

Feed dog height 0.8

1.2

Presser lifter 6

Presser lever

foot

Knee

lifter 13

height Automatic

presser lifter 10

Presser foot pressure

9.8-

39.2N

39.2-

78.4N

58.8-

98N

- 4 kgf)

- 8 kgf)

-10 kgf)

Bed

size 476 x 178

Arm pocket size 266.5 x 134.5

Needle

X 1 NS#9

X 1 #11

X 1

#22

X 5 NS#9

X 5 #11

X 5

#22

Rotary hook For thread trimming

Mass

Sewing speed depends on the machine specifications.

•

Motor

specifications

High sewing speed 220 spm

the maximum

(Changeable)

Low sewing speed 220 spm

Front/continuous backtacking speed 220 spm

1,800 spm

(Changeable)

End

backtacking speed 1,800 spm

servomotor

Motor

(3-phase/single-phase 4 pole 400W, 100 -240V)

Control circuit

Control box MD721 (Single-phase)

MD731 (3-phase)

Microcomputer

)

• Operation panel

8·20

a-eo

e-a

A B • ·;

OJJ

Ill-<~

••

..,

--...9

11 11

••

e v v

••

-·

B-40

A B C D •

O,OOEO•

••

jll-cl

•m

_....9

11111111

••

v v v

vee•

-·

B 100

A B C D FIGTEIIN

B-100

STEP

IIUIFIIlliDI

••

·;

DODD•

••

o•m

jll-cl

11111111.

••

_....9

vvvv.

.!.-1

v v

vcee

• Quick reference

for

indication

and meaning

the

operation

panel

B-20 B-40

8-100

! Normal lock stitch 0 0 0

Automatic thread trimming

.j.!.!.

Half stitch 0 0 0

AUTO

Automatic sewing

A~B1

,a1

Start backtack (0-9) 0 0 0

FJIEE

Temporarily cancel

~c1o,~a'

End

backtack (0-9) 0 0 0 programming sewing

~,q,&

Continuous backtack (0-9) 0 0

DELETE

Step deletion

Fixed

stitch (1-99) 0 0 0 II&Rf Step insertion

Name label stitch (1-99) -0 0 e Sewing speed setting

!.e1

Pleats presser stitch (1-99) -0 0

Slow start sewing

PlA1TERH

Pattern stitch --0 i Correction sewing

BACK

Back

stitch --0

J.A.

Needle up stop/

Needle down stop

coma

Continuous stitch - - 0 Lower thread detector

-Automatic presser foot lifting --0

lill=t

lQ.

(optional)

..!....

B-20 B-40

B-100

0 0 0

- - 0

--0

- - 0

0 0 0

From the library of: Superior Sewing Machine & Supply LLC

Sales points

Machine head

with

built-in

motor

• The servomotor

directly coupled to the upper shaft,

and

because this

eliminates the

need

for a V-belt, motor power

transmitted directly

without any losses.

addition, power consumption

also kept to a

minimum

that extensive energy savings

can

also be achieved

(approximately

25%

compared to previous Brother models).

Pedal

---~

Warm-up time

007100 8737 Markll

4,000

spm

155

5,000

spm

103 ms

189

• Elimination of the V-belt also means that flakes from the belt

wears

will

longer make the material dirty.

• Because the motor

built-in, it

longer necessary to mount a motor

the work table. Jobs such

installation

belt covers

and

a bobbin

winder have also been eliminated,

that overall setting

has

become

much easier.

•

The

motor

can

exchanged easily.

<Upper

shaft mechanism>

• Rotation

the motor 0

transmitted directly to the upper shaft

<Lower

shaft mechanism>

• Timing pulley

(U)

the joint set transmits the rotation

the motor 0 to the timing pulley

(D)

assembly 8

and

the lower shaft 0

via

the timing belt

I,)

From the library of: Superior Sewing Machine & Supply LLC

) )

Adoption of

the

dry-head lubrication

method

• A dry-head tank lubrication method has been adopted. (Upper and lower

shafts have bearings

both ends.) This enables minimization

lubrica-

tion

the needle bar mechanism.

• For easy maintenance, the number

times

lubrication is reduced

(compared with previous Brother models).

•

oil

pan

is no longer used, and there is no longer any need to worry

about oil staining the material.

• The oil level

can

be checked easily through a sight glass.

There is

longer any need to tilt or rotate the machine.

Uppershaft, thread take-up, and needle bar

--~-

-·-1fi··-

. .

L J

\ \ t

Decrease § Increase Plunger pump

(1)

The oil poured

through the oil port is stored

the oil tank

(2)

The oil

the oil tank 0 is drawn by the plunger pump 0 attached

the rotary hook shaft

(3)

The oil is fed from the plunger pump 0 to the thread take-up and the needle barvia the vinyl

tube and the wick.

(4)

Lubrication

the rotary hook

can

be adjusted using the adjusting screw

From the library of: Superior Sewing Machine & Supply LLC

Comfortable

vvorking

environment

• Reduction of the noise from the solenoids used for thread trimming

and

when motor

rotation

reversed

and

on,

plus reduced machine operating noise combine to produce

a much quieter working environment (approx. 5 dB less compared to Brother previous

models).

• The elimination of the V-belt means that there

longer a problem

anything getting

caught

the belt. Furthermore, a safety switch operates when the machine head is tilted

back for maintenance,

that the motorwill not operate even ifthe pedal

pressed.

• A motor

built into the machine

head,

giving the machine a more streamlined shape

and

the operator more space below the work table. That promotes the adoption of further

amenities

sewing factories without leading to there being less space.

)

• Major difference between

DD71

00 and 8737

Markll

DD7100 B737 Mark

Motor

installation Built-into the machine

head

Mounted under the table

servomotor 400W

Motor

type (Possible to (Impossible

reverse rotation) reverse rotation)

V-belt None Installed

Bobbin winder Built-into the top Attached to the table

installation

the machine head

Synchronizer Built into the motor Built into the machine

head

Mass 76

Lubrication method Dry-head Automatic lubrication

(oil

pan)

Specification -1

For

thin

and

difficult-to-sew

For

thin materials

materials

Lower thread Attachable

detector

optional part -

Sewing and Using the knob

backtacking

the operation panel the control box

speed settings

)

From the library of: Superior Sewing Machine & Supply LLC

} )

Flexible handling of even previously

difficult-to-sew

materials

• The focus

machines with -1 specification is

sewing materials which are thin and difficult-to-sew. As a result

modification

mechanisms such

the needle

bar,

thread take-up, and rotary hook, materials which were previously difficult-to-sew

can

be sewn at

high speed.

(See

page

7.)

DD71

00-1

for

difficult-to-sew

For

new

synthetic materials specification B737-1 for thin materials

materials specification on the B737

Needle bar stroke 29.0

31.0

Needle

X 1

X 1 #10

X 1 #11

Rotary hook For thin material Plastic race (lubrication not required) For thin materials

Maximum sewing speed 4,000 spm 3,500 spm 4,000 spm

*It is possible to attach a plastic race (lubrication not required).

(In

this case, the maximum sewing speed is 3,500 spm.)

• The special tool for measuring the presser foot pressure is no longer needed. A tension gauge set enabling easy measurement

upper

and

lowerthread tensions is provided

optional part.

(See

page

8.)

Others

• The switches for

slow

start, correction stitch, and needle up/down stop position are provided

the operation panel so that you can

s~t

and check the current settings easily.

• After thread trimming, the machine can be stopped with the needle at its highest position by reversing the motor. This is useful when

changing the materials to be sewn, thick materials

particular.

(See

page

9.)

• Gauge parts for the 8737

and

those for other manufacturer's

can

be used.

• A lower thread detector (optional part) is provided to indicate the remaining lower thread. This is useful when sewing a product that

allows

overlapping or incomplete stitching.

(See

page

7.)

From the library of: Superior Sewing Machine & Supply LLC

Optional parts

• Lower thread detector(183955-001)

The

lower

thread remaining will be displayed

% on the operation panel. The

lower

thread detector will warn you that the thread has been all used up according

the

amount you set

advance by making the

lower

thread remaining indicator blink and a

issuing beep.

This is useful when sewing a product that allows no overlapping or incomplete stitch-

ing.

Use the bobbin case assembly (525780-001) exclusive

the

DD71

00.

•

Set

for

new

synthetic fabric (for specification

-3)

(183910-001)

*When the following part set is used on the machine, regularly setthe sewing speed

2,800 spm. (Max. 3,500 spm)

Adjusting

screw~

(S35781-001) li

Spring~

(S35783-001) m

Presser bar

pressure gauge

(S35782-001)

Presser

:--1

regulating

spring

(S35780-001)

Spring----~

(14751-001)

[For

low

tension)

r--

Presser regulating

screwassembly

(S35779-001)

r-------------------,

~Spring

(100399-001) I

I [For

low

tension] I

: Spring (115188-001) :

1 [For

low

tension] 1

I • I

L----

~p:~.:~n

~.::~

•=m~y_j

(S35788-001)

[with presser foot pressure indication] [For

low

tension)

Needle

X 1 NS#10

(S35775-31

[Plastic race:---..........._

lubrication

""'->,,

..........

not required] r::'

......

Rotary hook

......

,}i\.'\Voef)V~.~~1

' :

boxassembly l }l 1

(535784-901)

:...

..,

..J

.........

l,.,.,..,.'

',)

Presser foot assembly

(S35777-001)

[For

low

friction]

~Screw

(S35786-001)

[without

lubrication hole)

)

When you change specifications -1 so

able

handle

new

synthetic fabrics, use the

following parts:

·Rotary hook

box assembly (535784-901)

·Screw

(535786-001)

From the library of: Superior Sewing Machine & Supply LLC

) )

• Tension gauge set (183922-001)

This

a device designated for easy measurement

upper and lower thread tensions. This is useful

when

frequent changing

threads and materials

be used for small-lot

production is required, orthe same thread tension is required on different machines.

Upperthread tension measurement

• Thread

wiper

set(183956-001)

• Presser foot lifting solenoid set

Presser foot lifting solenoid set A (with knee lifter) (183959-001)

Presser foot lifting solenoid set 8 (without knee lifter) (183960-001)

Lower thread tension measurement

From the library of: Superior Sewing Machine & Supply LLC

DIP switch functions

See

page

16,

"1!1

Connector configuration" for the

DIP

switch position.

Presser foot position when the foot pedal

Presser foot

lowered. (Export specification)

returned to the neutral position after

OFF

Presser foot is kept raised. (Japanese specification only)

thread trimming

(See

NOTE

1.)

Setting of a delay from the time the

With delay

2 presser foot is turned

OFF

until the motor

starts

(See

NOTE

2.)

OFF

Without delay

The machine stops with the needle at its highest position

Needle

stop position due to reverse due to reverse rotation.

3 rotation

OFF

The machine stops with the needle at its highest position

without reverse rotation.

OFF

N.C

6 Limited speed setting 1 Maximum sewing speed (during high-speed sewing) that

7 Limited speed setting 2

can

set through the operation

panel

(See

NOTE

3.)

8 Always set to off.

(See

NOTE

4.)

(NOTE

Once the knee lifter switch

used to lower the presser foot,

the foot pedal

can

not

used to raise the presser foot while

the machine

stopped; at this time, only the knee lifter is able

to raise

and

lowerthe presser foot.

(NOTE

For

-900 series specification machines (machines with

automatic presser foot lifter), be sure to set

DIP

switch 2 to

on.

(NOTE

Limited sewing speeds depend

settings for

DIP

switches 6

and

shown

the following table. When the maximum

sewing speed

specified

5,000 spm

the operation

panel, it

actually limited to 4,700 spm.

If the setting

memory switch 04 is changed to

on.

the set

sewing speed

not limited to

700 spm.

DIP

switch 6

DIP

switch 7 Limited speed

OFF OFF

3,500 spm

OFF

4,000 spm

OFF

4,500 spm

ON ON

5,000 spm

(NOTE

DIP

switch 8 is set to

on,

all

pedal operations are deactivated.

sure to set itto off.

From the library of: Superior Sewing Machine & Supply LLC

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