Strobel VEB100-7 User manual

For the professional user
Für den professionellen Anwender
Mechanikeranleitung
Class:
Klasse:
Model:
Ausführung:
Dated:
Stand:
VEB100-7
4
Spezialmaschinen GmbH
Mechanic‘s Instructions

Im Zeichen der Qualität
ou nd the Strobel trademark on every Strobel
machine leaving our works. And with good reason.
This symbol is a guarantee of the high quality of
our products. Quality which creates trust – trust
in our technology, our service and, not least of all,
in our good name.
ie nden die Strobel-Schutzmarke auf jeder
Strobel-Maschine, die unser Werk verlässt.
Und das aus gutem Grund. Denn dieses Zeichen
garantiert Ihnen die hohe Qualität unserer
Produkte. Qualität, die Vertrauen schafft – in unsere
Technik, unseren Service und nicht zuletzt in unseren
guten Namen.
S
Y
The sign of quality

trobel clients know that they can expect a particularly
high standard of performance from our company and our
machines. Now you have settled for one of our products.
For us this is a source of encouragement and of obligation
to Justify your trust.
If you wish to prot from the performance and efciency of
your Strobel machine as long as possible, exact handling
and thorough care is necessary. For this reason we kindly
request that you read the operating instructions closely.
It provides all the information you need for trouble free
operation.
And if you do happen to need a spare part the enclosed
spare parts list gives a complete overview. It is clearly
classied according to components so that you can nd the
required part quickly and easily. In order to avoid errors we
request you to quote machine class, machine number and
part number completely on your spare part order.
We wish you lots of success in your work with your new
Strobel machine.
S
A decision with future
Spezialmaschinen GmbH

1 MA_VEB100-7_A4_181015_en
Mechanic's instructions
STROBEL Class VEB100-7
Contents
Inhaltsverzeichnis
1General notes on safety............................................................................................5
2General .....................................................................................................................7
2.1 Operating instructions.....................................................................................7
2.2 Class identification, serial number and orientation of the machine.................7
2.3 Range of applications.....................................................................................7
2.4 Technical data................................................................................................8
2.5 Setting instructions in brief .............................................................................9
3Hints for repair and settings ....................................................................................10
3.1 Mounting the needle plate............................................................................10
3.1.1 Removing the needle plate (Fig. 1)..................................................11
3.1.2 Remounting the needle plate...........................................................11
3.1.3 Setting the needle plate (Fig. 2).......................................................11
3.2 Needle lever .................................................................................................12
3.2.1 Mounting..........................................................................................12
3.2.2 Setting the needle stroke (Fig. 3 and Fig. 4)....................................13
3.3 Loop stroke...................................................................................................14
3.3.1 Setting the loop stroke .....................................................................14
3.4 Looper ..........................................................................................................15
3.4.1 Removing and remounting the looper (Fig. 4)..................................15
3.4.2 Removing and remounting the looper shaft.....................................15
3.4.3 Looper deflection (Fig. 6).................................................................15
3.4.4 Setting the looper (Fig. 4, Fig. 5 and Fig. 7).....................................16
3.5 Feed dog (top feed)......................................................................................17
3.5.1 Setting the feed dog (Fig. 8).............................................................17
3.6 Feed plates...................................................................................................18
3.6.1 Setting the feed plate.......................................................................18
3.7 Plunger.........................................................................................................19
3.7.1 Replacing the plunger shaft (Fig. 9).................................................19
3.7.2 Adjusting the plunger (Fig. 10).........................................................20
3.7.3 Adjusting the material support arm ..................................................21
3.8 Sewing drive.................................................................................................21

2 MA_VEB100-7_A4_181015_en
4Pressing unit............................................................................................................22
4.1 General.........................................................................................................22
4.2 Disassembly of the cover (Fig. 16)...............................................................24
4.3 Adjusting the feed dog..................................................................................24
4.4 Changing the flat belt....................................................................................25
4.5 Using sliding means .....................................................................................26
4.6 Using heat conducting paste ........................................................................26
4.7 Cooling air ....................................................................................................26
5Cutting system.........................................................................................................27
5.1 General.........................................................................................................27
5.1.1 Note on the service life of the knifes................................................27
5.1.2 Basic settings...................................................................................27
5.1.3 Basics on setting the knifes (Fig. 24) ...............................................27
5.2 Installing and disassembling the complete knife holder................................28
5.2.1 Removing the complete knife holder (Fig. 20) .................................28
5.2.2 Installing the complete knife holder (Fig. 21, Fig. 22 and Fig. 23)....29
5.3 Setting the knifes..........................................................................................31
5.3.1 Setting the cutting angle...................................................................31
5.3.2 Setting the setting angle...................................................................33
5.3.3 Setting the contact pressures...........................................................33
Subject to change with prior notice

3 MA_VEB100-7_A4_181015_en
Appendix
Electric mains, sewing drive - sewing machine lamp:
Circuit diagrams
258.00.35 Mains connection plan cl. general
(AB611A with/without sewing machine lamp gen.)
Connecting the sewing machine:
258.21.63 Electrical connection plan cl. 45, 58, 103, 120, 170, VEB
258.10.23 Electrical diagram (24VDC) cl. VEB100-7 from version 2
258.21.74 Electrical connection diagram cl. VEB100-7 distribution box
258.30.27 Electrical assembly diagram cl. VEB100-7 distribution box
Connecting Pneumatic:
259.00.64 Pneumatic circuit diagram cl. VEB100-7
259.10.64 Pneumatic construction circuit diagram cl. VEB100-7

4 MA_VEB100-7_A4_181015_en

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1 Every person in charge of setting up, operating, servicing and repairing the
machine must first read and understand the operating instructions and
particularly the safety instructions before starting up the machine.
General notes on safety
Failure to comply with the following safety instructions can lead to bodily
injury or damage to the machine.
1. The machine must only be operated by persons familiar with the relevant
operating instructions and who have been instructed accordingly.
2. Before commissioning also read the notes on safety and the operating
instructions of the sewing drive manufacturer.
3. Only use the machine in the intended manner and never without the
provided guards. Always observe the pertinent safety regulations.
4. Switch off the main switch or pull the power plug for threading, changing
the reels, exchanging sewing tools such as needle, gripper, needle plate,
transport devices, possibly cutter and cutting block, for cleaning and when
leaving the workplace as well as for maintenance.
5. General maintenance tasks may be carried out only by properly trained
persons in accordance with the operating instructions.
6. Repair work, retrofitting and maintenance may be carried out only by
technicians or specially trained personnel.
7. When servicing or repairing pneumatic equipment, the machine must be
disconnected from the pneumatic supply. Exceptions are only allowed for
adjustment work and tests of functionality performed by specially trained
technicians.
8. Only specially qualified technicians may work on the electrical equipment.
9. It is forbidden to work on electrically live components! Exemptions are
covered by the EN50110 (DIN VDE0105) regulations.
10. Any retrofitting or alterations to the machine may only be performed under
strict compliance with all pertinent safety regulations.
11. Only use our approved spare parts when servicing and/or repairing the
machine.
12. It is forbidden to operate the sewing head until it is determined that the
entire sewing unit complies with EU provisions.
13. It is essential that you observe and follow these instructions as well as the
generally valid safety regulations.

6 MA_VEB100-7_A4_181015_en
14. Warning instructions given in the operating instructions that pertain to
especially dangerous parts of the machine must be indicated at these
positions using a safety symbol.
Warning instructions given in the operating instructions that pertain to
special injury hazards for operating personnel or technicians must be
indicated at these positions using a safety symbol.

7 MA_VEB100-7_A4_181015_en
2
2.1
General
Any person involved in the installation, operation, maintenance and repair of
the machine must have read and understood the operating instructions and
mainly the safety instructions before starting the machine.
Operating instructions
2.2
The operating side of the machine is the basis for descriptions referring to
sides.
The class identification (type) as well as serial and model number (after the
dash) are located on the rear side of the housing.
Class identification, serial number and orientation of the
machine
2.3 Class VEB100-7 is suitable for sewing belt loops from waste fabric.
The cutting device trims the material automatically to the size for the 9.5 and
11 mm hemmer.
The supply of the sewing materials occurs by means of tape feed.
Range of applications
The integradet pressing unit presses the belt loops sewn on Class VEB100-7.
The steam can be supplied either by means of a central steam generating unit
with interconnected solenoid valve box including condenser and steam trap or
by means of a steam generator.
The range of applications of the different machines can be extended by
exchanging the variable sewing tools, i.e. that other fabric qualities than the
above mentioned ones can be sewn as well.
Variable sewing tools please see point 7 in operating instructions.

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2.4
Recommended rated speed 1800 min-1
Technical data
Motor power 550 W
Toothed belt pulley/machine Z = 38
Toothed belt profile HTD 5M-9
Stitch length 3 - 6 mm
(depend on fabric)
Kind of stitch single thread chainstitch blindstitch
Stitch type 103
Needle system GROZ-BECKERT 1669 EEO
Needle size 90
Thread polyester continuous filament
Thread size 120/2
Pneumatic connection 3 - 6 bar
Average air consumption 2,5 m³/h (without suction)
Suction average air consumption 20 m³/h
Required space 0.7 m x 1.1 m
Pressing unit
Current voltage 230 V single phase alternating
Heating capacity 1.68 KW
Total connected load 1.80 KW
Temperature range 60 - 240°C
Heating up time approx. 10 min.
Working pressure:
Steam 2.5 - 5 bar
Pneumatics 3 - 4.5 bar
Pneumatics suction 5 - 6 bar
Feed length per revolution self-regulating
Operating noise:
Medium sound pressure level
at a speed n = 1800 min-1 LpAm 72 dB(A)
Noise test according to DIN 45635-48-1 KL3

9 MA_VEB100-7_A4_181015_en
2.5 Theoretic needle radius 41.3 mm Setting instructions in brief
Left needle guide 41.33 +0.02 mm
Needle glide plate 41.30 ±0.01 mm
Right needle guide 41.40 +0.05 mm
Needle strike, needle eye to looper finger 1.5 +0.5 mm
Ball pin to needle shaft 4 ±0.50 mm
Slot ball pin approx. 15 °
Looper deflection 18 +0.50mm
Pressures
Feed plates 12 N
Cloth support arm 140 N (meas. at plunger shaft)
Plunger limit stop 6 N
Feed length 3 – 6 mm
Lifting between needle plate and approx. 13 mm
feed plates
Lifting between needle and plunger approx. 10 mm
Loop stroke 2.8 +0.3 mm

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3
Hints for repair and settings
CAUTION! Danger of injury!
Observe safety and operating instructions before realizing
any maintenance and repair works. Failure to do so may
result in heavy bodily injuries.
3.1
Mounting the needle plate
Attention!
Switch off machine electrically!
Needle plates are set at works and can be replaced easily as complete kit.
When replacing the needle guide the dimensions have to be checked by means
of a gauge as shown in Fig. 2. After removing the needle lever the gauge is
mounted to the needle shaft and senses the needle guides by turning the
handwheel.
Fig. 1

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3.1.1 1. Switch off machine electrically, cloth support arm is lifted. Removing the needle plate (Fig. 1)
2. Remove needle and needle lever.
3. Release needle plate (1) fastening screws (2) and remove the complete
needle plate unit to the front.
3.1.2 Amount the needle plate in reversed order but make sure that the needle plate
opening is mounted centrically to the plunger foot and that the needle plate is
mounted horizontally. Push the needle plate bow completely upwards until
threaded pin (4) fits closely to the needle shaft bush.
Remounting the needle plate
3.1.3 The theoretic needle radius of 41.3 mm should be 0.03mm to 0.05 mm larger at
the left needle guide, 0.01 mm smaller to 0.01 mm larger at the needle glide
plate and 0.06 mm to 0.8 mm larger at the right needle guide. The settings
should be realized with a gauge. Deviations may deteriorate the sewing result
considerably and may cause damages or pre-mature waste of the sewing tools.
Setting the needle plate (Fig. 2)
Fig. 2

12 MA_VEB100-7_A4_181015_en
3.2
3.2.1
Needle lever
Mounting
Attention!
Switch off machine electrically!
Release screw (1), swivel the thread take-up and remove the needle lever.
When mounting the needle lever make sure that the needle is mounted
centrically to the needle channel and that the needle point is flush with the right
hand edge of the left hand needle guide (Fig. 3)
Fig. 3

13 MA_VEB100-7_A4_181015_en
3.2.2 Set the needle stroke in a way that at a loop stroke of 2.8 + 0.3 mm the left side
of the needle eye has a distance of approx. 1.5 +0.5 mm to the right hand edge
of the large looper finger, the point of the large looper finger being above
needle center (
Setting the needle stroke (Fig. 3 and Fig. 4)
Fig. 5).
To adjust remove headcover Release the screw (2) (Allan key size 4), ball bolt
(1) can be adjusted through the rear head side (remove the oval cover) by
means of a slotted screwdriver (Fig. 4). Insert the ball bolt in horizontal position
so that the slot of the ∅6 bolt is placed vertically under the ∅7 bolt.
Clockwise turning means a larger needle stroke, anticlockwise turning results in
a smaller needle stroke. The distance ball bolt to needle shaft is
2 ±0.5 mm. Readjust the needle lever as per “3.2.1 Mounting” after adjusting
the needle stroke.
Tighten screw (2) (Fig. 4). Check looper and needle movements through turning
the main shaft by means of the handwheel.
Fig. 4

14 MA_VEB100-7_A4_181015_en
3.3 The loop stroke is the needle's way from its right cusp point to the point where
the point of the large looper finger is placed above needle center
(
Loop stroke
Fig. 5).
Fig. 5
3.3.1
Setting the loop stroke
Attention!
Switch off machine electrically!
At factory the loop stroke is set to 2.8 +0.3 mm (Fig. 5).
Adjustment:
- Screw out universal joint : smaller loop stroke
- Screw in universal joint : larger loop stroke
Thread pitch = 0.5 mm per turn.
Proceed as follows to turn the universal joint shaft (Fig. 4):
1. Release screw (11) and push looper to the front.
2. Release nut (9) on the looper shaft.
3. Release screws (10) in connecting rod head (7).
4. Loosen set collar (4) and pull out looper shaft and connecting rod head (7)
from universal joint (6).
Do not release bolt (5)!
The loop stroke is determined by means of a special gauge or calliper gauge.

15 MA_VEB100-7_A4_181015_en
3.4
3.4.1
Looper
Removing and remounting the looper (Fig. 4)
Attention!
Switch off machine electrically!
Release cap screw (11) and pull the looper towards the front.
When remounting the looper make sure that it is completely pushed in and that
its positioning surface fits exactly to the looper take-up.
Tighten cap screw (11).
3.4.2 The complete looper shaft can be taken out after removing the looper and
releasing set collars (4) and (3) (
Removing and remounting the looper shaft
Fig. 4).
3.4.3 The looper deflection is 18 + 0.5 mm (control dimension). Looper deflection (Fig. 6)
Fig. 6

16 MA_VEB100-7_A4_181015_en
3.4.4 In the moment of the loop take-up the looper fingers should be placed
0.1 - 0.2 mm above the needle, also when a thicker needle is used. The needle
should not be touched!
Setting the looper (Fig. 4, Fig. 5 and Fig. 7)
The horizontal distance from the large looper finger to the needle eye should be
1.5 +0.5 mm (Fig. 5). On the left side, when the loop is released, the needle
should move centrically through the looper fingers. These values can be set
through turning and moving eccentric bolt (1) (release adjusting screw (2), Fig.
7) and through turning the looper shaft against connecting rod head (7) (Fig. 4).
Check the looper movement through carefully moving the main shaft by means
of the hand wheel. Check if all fastening screws are tight!
Fig. 7