Officezone FM 76A Digit Operation Manual

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FM76A Digit

Instruction manual

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Carefully read this booklet before installing and using the machine

DOC. N. FM111023
REV. 0
ED. 01.2001

INDEX

Chapter1. Foreword

1.1. Introduction 1-1

1.2. Performances of packaging machine 1-1

1.3. Machine identification 1-1

1.4. Weight and dimensions of packed machine 1-3

1.5. Weight and dimensions of machine 1-3

Chapter2. Installation of the machine

2.1. Transport and positioning 2-1

2.2. Environmental conditions 2-7

2.3. Electrical connections 2-9

Chapter3. Machine adjustment and preparation

3.1. Control of direction of rotation 3-1

3.2. Adjustment 3-5

3.3. Manual and automatic cycle 3-15

3.4. Insertion of film bobbins 3-17

3.5. Conveyor belt adjustment 3-19

3.6. Bobbin support and packaging flat adjustment 3-19

3.7. Execution of 1^ film welding 3-21

3.8. Film coupler on wrapping machine (where expected) 3-23

3.9. Connection and start of smoke exhauster (where
pected)

3.10. Introduction of the product to be packaged 3-27

3.11. Packaging 3-29

Chapter4. Limits and conditions of machine use

4.1. Max. packing sizes 4-1

4.2. Machine operation conditions 4-1

4.3. Items which must not be packaged 4-1

Chapter5. Film characteristics

5.1. Films to be used 5-1

5.2. Calculation of band A 5-1

Chapter6. Safety standards

6.1. Warnings 6-1

Chapter7. Ordinary maintenance

7.1. Precautions for ordinary maintenance interventions 7-1

7.2. Cleaning of sealing blade 7-1

7.3. Plastic film removal 7-3

7.4. Machine cleaning 7-5

7.5. Control of cooling liquid 7-7

7.6. Rubber and Teflon replacement 7-9

7.7. Adjustment of the cams 7-11

7.8. Replacement of sealing blade 7-13

7.9. Wiring diagram 7-15

7.10. Key wiring diagram 7-17

7.11. Spare parts 7-19

7.12. Disassembling, Demolition and elimination of residuals 7-21

Chapter8. Guarantee

8.1. Certificate of Guarantee 8-1

8.2. Guarantee conditions 8-1

Chapter 1

3-25

1.1. Introduction

You have bought a machine with outstanding features and performance and we thank
You very much for Your confidence in choosing it.

The MINIPACK System is the only one of its kind and has achieved worldwide succes

with more than 60000 units operating in the field of packaging and wrapping.It is
handy, low-priced and protected by patents at home and abroad.The technological
concept underling its design, as well as the components and materials used in the
manufacturing and testing process are the best assurance of proper operation and
long-lasting liability.

1.2. Performances of packaging machine

Thanks to its particular operating circuit, it can be used both as a sealing and
shrinking machine or as a plain sealing machine (sealing

only) .In this case it is possible to pack the object in a soft bag without shrinkwrapping.

Technical grade or food grade films with thickness in the range of 15-50 micron can
be used. These products are manufactured and distributed by MINIPACK Torre S.p.A.
The film used in centerfolded execution can be micropunched or not when running
through the micropunches of machine itself. The machine can carry out up to 650
packages/hour.

1.3. Machine identification

In every communication with the manufacturer, always
mention the model and the serial number specified on the
plate on the rear part
of the machine.

1.4. Weight and dimensions of packed machine

a = mm 1415
b = mm 955
c = mm 830
Weight = Kg 192

1.5. Weight and dimensions of machine

a = mm 1570
b = mm 800
c = mm 500
d = mm 1450
Weight = Kg 152

Chapter 2. Installation of the machine

2.1. Transport and positioning

It is recommended to handle with
great care during transport and
positioning!

Cut the strap with scissors (make
sure you protect your eyes by
wearing glasses) and withdraw the
cardboard.

Take away the box (A) which contains

p

the carriage.
Take away the bobbin support (C).
Take away the roller way (B)

Unscrew the 4 fastening screws of the

allet, putting the 4 plates back inside

the machine.

Assembly the carriage.

Lift the machine and position it on the
carriage, paying attention that the 4
foots are properly inserted in their
housings.

To place the roll support (13) follow the
instructions below:

Remove the adhesive tape (A) fixing
the guides trolley.
Place the roll support (13) on the
proper guides.

Stride over the blocking device (B)
through a working tool (for
example a screw driver).

Position the roller way, coupling it to
the conveyor belt.

2.2. Environmental conditions

Place the machine in a suitable environment free from humidity, gases, explosives,

combustible materials.

Woring environmental conditions:

• Temperature from + 5°C to + 40°C

• Relative humidity from 30% to 90%, without condensation

Machine safety factor = IP20
The aerial noise made by the machine is lower than 70dB

2.3. Electrical connections

OBSERVE HEALTH AND SAFETY REGULATIONS!

Before executing the electrical connections, make sur that the mains voltage matches
the ono on the plate on the
rear of machine and that the earthing contact complies with the safety rules in force. In
case of doubts about the mains voltage, contact the local public supply company.

GROUNDING OF THE UNIT IS OBLIGATORY!

Before executing the electrical connections,
make sur that the mains voltage matches the
ono on the plate on the
rear of machine and that the earthing
contact complies with the safety rules in
force. In case of doubts about the mains
voltage, contact the local public supply
company.

Chapter 3. Machine adjustment and preparation

3.1. Control of direction of rotation

Partially extract (about 20 cm) the switch box after having removed the four fastening
screws (A).

Press the push button of contactor KM3 manually and check that the fan rotates
clockwise.
Otherwise invert two of the three phases of the electrical plug.

Before starting the machine operation check the right direction of rotation following these
instructions:

Rotate the general selection switch

on 1-position

Partially extract (about 20 cm) the

switch box after having removed
the four fastening screws (A).

Press the push button of contactor
KM3 manually and check that the fan
rotates clockwise.
Otherwise invert two of the three

phases of the electrical plug.

3.1. Control of direction of rotation

Push the emergency button (8) to get the machine into START position.
Close the switch block again and unlock the emergency button (8) by turning it

towards right.

N.B.: THE CONTROL OF DIRECTION OF ROTATION SHOULD BE CARRIED OUT

EACH TIME YOU CHANGE
THE ELECTRICAL PLUG.

Push the emergency button (8)

to get the machine into
START position.

Close the switch block again and
unlock the emergency button (8)
by turning it towards right.

N.B.: THE CONTROL OF DIRECTION OF ROTATION SHOULD BE CARRIED OUT
EACH TIME YOU CHANGE
THE ELECTRICAL PLUG.

3.2. Adjustment

A-

ELECTRONIC BOARD FEATURES

The machine is equipped with 6 selectionable programs:

Program nr. Program features

P4 - P5 - P6

Each program is composed by 6 variables which can be modified (in case it is not possible
to set one of them, such a variable will obviously not appear on the display) :

Main switch
Sealing warning light

B-

Shrinking warning light

C-

Pause warning light

D-

Belt advancing light

E-

Temperature warning light

F-

Programs selection button

G-

Display

H-

Variables selection switch

I-

Adjusting button

L-

Reset button

M-

Piece counter display

N-

P1
P2
P3

Sealing only
Sealing + shrinking
Sealing + delayed shrinking to sealing end
Sealing + shrinking

Variable Field Field features

1. Sealing

2. Fan delay after sealing

3. Shrinking

4. Belt advancing time

5. Automatic cycle pause time

6. Temperature

The machine is equipped with a piece counter to show on display (N) the number of
sealings.
Such a value can be put to zero at any time through reset button (M).

PHASE NR. 1 = SWITCHING THE MACHINE ON

Turn the main switch (A) into pos. 1. Before using the machine, wait until the adjusting
temperature is reached. This is signalled by the extinction of the warning light (F). The
display (H) turns on and the number of the currently selected program will appear.

PHASE NR. 2 = PROGRAMS
SELECTION

Push button (G) to select the number of the program.

PHASE NR. 3 = VARIABLES
PROGRAMMING

Through button (I) it is possible to look through the variables of the selected program, while
through buttons (L) the memorized values can be modified. Once the value has been set,
push the S button and then release it; the LED of the next function will light up. Set the
value of the variables as previously described. To validate modifications, presso button (I)
until the number of the program appears on the display. The fan delay time after sealing can
be modified; there is not a LED indicating this variable which is shown with an “r” on the left
display, while the right one shows the time which has been set. At the end of all variables to
be adjusted, the display will show the code of the program just chosen (for example P1).
N.B.: In case during programming the FC limit switch is being pressed, the unit quits the
scheduling, the selected program is executed and the display shows the number of the
program.

PHASE NR. 4 =
PERFORMANCE

Once all adjustments have been made, the machine is ready to start working.

In case of “ANOMALY” the display will show as follows:

E 1

Machine has been switched on when the hood was lowered. Lift the hood up.

0 ÷

2.7
0 ÷ 9

0.0 ÷

9.9

0.0 ÷

3.0

0.0 ÷

9.9
00 ÷
99

values expressed in seconds
tenth-seconds values
values expressed in seconds
values expressed in seconds
values expressed in seconds

corresponds to 150.....348°C (2°C each point)-

(medium value 75)

E 2

E 3

E 4

E 6

- -

3.3. Manual and automatic cycle

Machine has been switched on when the (S) button was pressed. Release the
button. In case the error signalling still persists, check the correct functioning of the
button.
Working temperature hasn’t been reached in the set time (10 min.). Check the
correct positioning of the feeler. Check heater and fuses. Reset through (P) button.
Temperature is higher than 400°C or feeler has been interrupted. Switch the
machine on to reset.
The limit switch to cut out security is broken (it is always closed ).Check the correct
functioning of the limit switch to cut out security, then switch the machine off and on
again.
Hood not in proper position when switching machine on. Press emergency button to
lift hood. Once it has been lifted,signalling will disappear.

The machine can be operated with a
manual as well as with an automatic
cycles.
To carry out only one operating

cycle rotate the selector (6) to
the MANUAL-position and
press the start button (7).

To operate the automatic cycle

rotate the selector (6) to the
AUTOMATIC position and
press the start button (7).

The machine is equipped with an

EMERGENCY BUTTON (8)

blocks it immediately when pressed,
bringing
the sealing frame into start position.

The machine has also an
automatic safety system on the
welding frame which intervenes
in case the lowering of the
frame is hindered, bringing the
frame back in the start position.

3.4. Insertion of film bobbins

which

Insert the roll of film on the roll
(11) and block it through the
centering cones (12).
Position the roller on the bobbin

support (13).

Run through the micropunches

(14).

Run the film lower layer under the
packaging plate (15).
Run the film upper layer over
the packaging plate (15).

3.5. Conveyor belt adjustment

The bobbin support (13) and the packaging flat (15) must be adjusted according to the

width of the article

to be packaged, leaving a space of about 1-2 cm between the article and the welding
edge.

Adjust the height of the conveyor
belt (17) with the special
handwheel (18).

N.B.: In order to get a good
packaging the conveyor belt
should be positioned in such a
way,
that the film welding is made
at half the packaging height.

3.6. Bobbins support and packaging flat adjustment

The bobbin support (13) and the
packaging flat (15) must be
adjusted according to the width of
the article

to be packaged, leaving a
space of about 1-2 cm
between the article and the
welding edge.

3.7. Execution of 1^ film welding

To carry out the 1^ welding move
the film, as shown in the figure.
Rotate the selector (6) to
MANUAL-position and press
the start button (7).

The transparent bell (19) will
be lowered automatically and
carry out the 1^ welding on the
left side of the film.

3.8. Film coupler on wrapping machine (where expected)

Carry out a number of cycles
sufficient to make a strip of
scrap film.

Guide this film strip around the
transmission rolls and the driving
rolls and couple it with the coiler
(23).
The machine is now ready to
start the packaging.

3.9. Connection and start of smoke exhauster (where expected)

Insert the plug of the exhauster
in the outlet (24) at the back of
the machine.

Press the button (25) at the back
of the exhauster.

3.10. Introduction of the product to be packaged

Lift the film edge on the packaging
flat (15) with your left hand.

Introduce the product with your right
hand in the film and move if to the
left until it settles on the conveyor
belt (17)
leaving about 1-2 cm space
between the product and the outer
edge of the welding frame in order
to enable the air flow for the
shrink-wrapping.

3.11. Packaging

Press the start button (7). The transparent bell (19) will be lowered automatically to
make the cutting, the welding,
and if selected the shrink-wrapping of the packaging.

When the bell opens again, the packaging will be shifted to the roller way (26), so that

p

the welding area will be free

another cycle. If the machine is in an automatic cycle-

packaging cycle at the end of the set time pause.

Press the start button (7). The
transparent bell (19) will be
lowered automatically to make
the cutting, the welding,
and if selected the shrink­wrapping of the packaging.

When the bell opens again, the
packaging will be shifted to the
roller way (26), so that the
welding area will be free
for another cycle. If the
machine is in an automatic
cycle-position, it will start a
new packaging cycle at the
end of the set time pause.

osition, it will start a new

Chapter 4. Limits and conditions of machine use

4.1. Max. packing sizes

Do not carry out packaging with a surface which is the same as the inner size of the
welding frame. Leave at least 1-2 cm compared with the inner perimeter of the bell.
Do not carry out shrink-wrapping on light-weight products as the ventilation could lift
them continuously inside the bell.

a = mm 500
b = mm 380
c = mm 250

N.B. : max. dimensions shown on above scheme are referring to the max. dimension of the
single package.
Refer to chapter 5.2. to get max. dimension of package (b x c); the addition of (b + c) is
equal to film roll width 100 mm.

4.2. Machine operation conditions
NO!

4.3. Items which must not be packaged

The products listed below must absolutely not to be wrapped to avoid damages to the
machine and seroius injuries to the operator
in charge:

The products listed below must absolutely not to be wrapped to
avoid damages to the machine and seroius injuries to the
operatorin charge:
Wet products, unstable products, liquids of any kind and
density in fragile containers, flammable materials, explosive
materials, pressurised gas cylinder of any kind, bulk and
volatile powders, bulk materials with grain size smaller than the
holes of the reticulated plate, any materials and products not
listed but which might harm operator and cause damages to
the machine.

Wet products, unstable products, liquids of any kind and density in
fragile containers, flammable materials, explosive materials,
pressurised gas cylinder of any kind, bulk and volatile powders, bulk
materials with grain size smaller than the holes of the reticulated
plate, any materials and products not listed but which might harm
operator and cause damages to the machine.

Chapter 5. Film characteristics

5.1. Films to be used

Machine can work with all shrinkwrapping films with thickness 15-50 micron
manufactured by ”MINIPACK-TORRE S.p.A.”.
The special features of our films (which may be customized with drawings and text)
assure their outstanding reliability, with regard both to compliance with laws in force
and to an excellent machine performance.

A=mm 600 MAX
D=mm 300 MAX
d=mm 77

Machine can work with all
shrinkwrapping films with thickness
15-50 micron manufactured by
”MINIPACK-TORRE S.p.A.”.
The special features of our films
(which may be customized with
drawings and text) assure their
outstanding reliability, with regard
both to compliance with laws in
force and to an excellent machine
performance.
A=mm 600 MAX
D=mm 300 MAX
d=mm 77

5.2. Calculation of band A

Band A = b + c + 100 mm

Chapter 6. Safety standards

6.1. Warnings

THE MACHINE CAN NOT BE USED BY UNTRAINED PERSONNEL!

N.B. Before starting the automatic cycle, make sure that all necessary
adjustments have been made.

All adjustments of the machine will
be made by the selector (6) in
manual position.

In case of blocking of the machine or in
order to stop it during the automatic
cycle press the EMERGENCY
BUTTON (8).

Do not touch the sealing blade (27)
soon after sealing by reaching
beyond the safety guard (28).
Danger of burns due to residual
heat on the sealing blade.

Do not keep on sealing in case
the sealing blade breaks (27) but
replace it at once.

Do not touch the chamber
closing flap (29) during warm­up function. Danger of burns.

Do not touch the conveyor belt
(17) when it is in motion.

In case of interruption of the power supply when the machine is working and the bell
(19) is closed, intervene immediately disassembling the bell, lever it between profile
(A) and frame (B).

Make sure that the rubber feet (30) of machine are lodged in the holes of the wheeled
stand.

Make sure that the roll of film is properly lodget (31).

In case of interruption of the power
supply when the machine is working
and the bell (19) is closed, intervene
immediately disassembling the
bell, lever it between profile (A)
and frame (B).

Make sure that the rubber feet
(30) of machine are lodged in the
holes of the wheeled stand.

Make sure that the roll of film is
properly lodget (31).

Chapter 7. Ordinary maintenance

7.1. Precautions for ordinary maintenance interventions

BEFORE PROCEEDING TO MAINTENANCE, SWITCH OFF THE MACHINE AND

DISCONNECT IT BY OPERATING THE
MASTER SWITCH.

7.2. Cleaning of sealing blade

Using a dry cloth, wipe off the
residues clinging to the sealing
blade: do this at once after sealing
since the
residues are easier to remove
when still warm.

Periodically lubrificate the
sealing blade with the grease
supplied with the machine.

7.3. Plastic film removal

Wait for the machine to cool down
completely before removing any
scraps stuck to the hot parts of the
machine (e.g. , on the flaps of the
heat chamber).
In case it is necessary to clean the
lower bell (housing of the fan),
remove the conveyor belt (17)
turning the handwheel (18) and
remove the pieces which are
fallen inside the bell. For a more
careful cleaning of the lower bell
we recommend to use a vacuum
cleaner.

When the bobbin of the automatic
coiler is full, remove the film by
unscrewing the knob (32) and taking
away
the disk (33).

7.4. Machine cleaning

Use a cloth moistened with water
for the cleaning of the machine.
For cleaning the bell (19) nside
and outside we recommend to use
a normal detergent for glass
cleaning.
Do not use any detergents with
solvents which could damage the
bell (19) and reduce the
transparency.

If the machine works in a dusty
environment it is necessary to
clean it more frequently inside as
well as outside.
It is especially recommended to
vacuum-clean the dust which
settles on the interior electrical
components. To open the switch
box again remove the 4
fastening screws (34).

7.5. Control of cooling liquid

Check the level of the cooling
liquid by unscrewing the cap
(35).

Check that the rod is wetted by
the liquid at about 2 cm height,
otherwise add a mixture of water
and antifreeze
liquid (10%).

p

7.6. Rubber and Teflon replacement

When the Teflon-strikers are worn
out, replace them with spare parts,

aying attention that the
application is linear
and even. Before applying the
Teflon self-adhesive strip clean
the rubber part (37) with a
detergent.

If also the rubber (37) is damaged,
replace it as follows:

1. remove the old rubber

2. clean the housing of same

3. apply some drips of glue in the

housing

4. insert the new rubber in a linear

way

5. clean the rubber with a

detergent apply the self­adhesive Teflon-strip

7.7. Adjustment of the cams

It is necessary to disassemble
the panel (38) at the back of the
machine in order to get access to
the cams.

There are 4 cams which control:
The lowering of the upper bell and
thus the pressure of same on the
welding blade.
The maximum opening of the upper
bell and the start of the conveyor
belt.
Cutting out the operating of the
safety device on the welding frame
(∼5 mm before the welding).
The disjunction of the upper bell
immediately after welding.

The adjustment is made by
loosening the screw (39) and
rotating the cam in the right position.

Attention: For the adjustment
of the cams, shift them
gradually.

7.8. Replacement of sealing blade

To replace the sealing blade (19) follow this procedure:

• Disconnect power to the machine

• Unscrew the three screws (20), (21), (22)

• Remove the old sealing blade

• Clean the housing and if necessary replace the insulating teflon (23) of the central

clamp

• Insert the new sealing blade starting from the central clamp and tighten the screw
(21)

• Trim the new sealing blade according to the holes of the pistons (24) and (25)

• Complete the insertion if the sealing blade in the whole housing

• Push the rear piston completely onwards (25) towards the sealing blade to make it

enter the hole of the piston itself and then tighten screw (22)

• Push the front piston (24) completely onwards towards the sealing blade to make it
enter the hole of the piston itself and then tighten screw (20)

• Trim the teflon projecting from the central clamp

• Make sure that the sealing blade (19) is well positioned and in tension

7.9. Wiring diagram

7.10. Key wiring diagram

QS1 Main switch M5 Ventilator motor KM4 Belt contactor

FU Fuse M6 Pump motor KM5 Bell descent contactor
FU1 Fuse T1 Cut transformer KM6 Bell rise contactor
FU2 Fuse T2 Auxiliary transformer SBO Emergency button
FU3 Fuse SQ1 Bell descent limit switch SB1 Start button
FU4 Fuse SQ2 Bell rise limit switch SA1 Manual selector

EH1 Cutting resistance SQ3 Safety device cutting out limit

switch
EH2 Oven resistors SQ4 Bell disjunction limit switch
EH3 Oven resistors SQ5 Safety limit switch

M1 Fan motor KM1 Cutting contactor
M2 Bell motor KM2 Oven resistors’ contactor
M3 Belt motor KM3 Fan contactor
M4 Ventilator motor

7.11. Spare parts

Code

01 S02A0404
02 FE385602
03 FM350009
04 S0K00306
05 FM080037
06 FM170002
07 S0K00604
08 S0K00605
09 S02A0602
10 FM830003
11 FM195012

7.12. Disassembling, demolition and elimination of residuals

ATTENTION!

All operations about disassembling and demolition must be done by
qualified personnel with mechanical and electrical expertise required to
work in security conditions.

Proceed as follows:

1. disconnect machine from power mains

2. disassemble components

All wastes must be treared, eliminated or recycled according to their classification
and to the procedures in force established by the laws in force in the country the
equipment has been installed.

Item description

Teflon liner
Sealing blade
Upper neoprene rubber
Complete central holdfast
Upper hood
Torsion bar
Complete slotted microperforator
Complete needles microperforator
Roll holder complete tube
Fan
Glass wool panel

Chapter 8. Guarantee

8.1. Certificate of guarantee

Model and Serial Number:
Equipment manufactured by minipack-torre is warranted to be free of defects in parts and

craftsmanship for a period of one (1) year from the date of installation, or 15 months from the
invoice, whichever occurs first, minipack-america's exclusive obligation under this warranty
is limited to repairing or, at its option, replacing any minipack-torre part that is determined by
minipack-america to be defective. The warranty is for the original purchaser of new equipment.

Component subsystems manufactured by minipack-torre carry the warranty as stated herein.

The warranty does not apply to subsystem component parts which are not manufactured by
minipack-torre. Subsystem component parts not manufactured by minipack-torre shall be
subject to any warranty of its manufacturer.

This warranty shall not apply to damage resulting from installation, modification, or repair by
anyone other than a minipack-america authorized distributor/dealer. Nor shall it apply to any
equipment which has been subject to accident, alterations, neglect, misuse or improper
maintenance.

In the event of highly corrosive or high moisture applications, special protective coatings or
stainless steel construction might be needed.

minipack-torre and minipack-america shall not be liable if minipack-torre equipment or
components are used with accessory equipment not manufactured by minipack-torre.

Representations and/or warranties, by whomever made (even if made by minipack-america
authorized distributors/dealers), which are inconsistent with the terms herein shall not
constitute a term of the mininpack-torre or minipack-america express warranty and shall not be
binding on minipack-torre or minipack-america.

THE LIMITED WARRANTY SET FORTH ABOVE IS THE SOLE AND ENTIRE
WARRANTY PERTAINING,TO THE PRODUCT AND IS IN LIEU OF AND EXCLUDES
ALL OTHER WARRANTIES OF ANY NATURE WHATSOEVER, WHETHER
EXPRESSED, IMPLIED OR ARISING BY OPERATION OF LAW, INCLUDING, BUT
NOT LIMITED TO ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR PURPOSE. THIS WARRANTY DOES NOT COVER OR

PROVIDE FOR THE REIMBURSEMENT OR PAYMENT OF INCIDENTAL OR
CONSEQUENTIAL DAMAGES OF ANY TYPE, MANNER OR DEGREE, AND ANY
LIABILITY BY MINIPACK-TORRE OR MINIPACK-AMERICA FOR SUCH
INCIDENTAL OR CONSEQUENTIAL DAMAGES IS HEREBY DISCLAIMED. Some
states do not allow this exclusion or limitation of warranties and/or damages, so the above
limitations and/or exclusions might not be applicable to you. This warranty gives you specific
legal rights, and you might also have other rights that vary from state to state.