Editor’s
note: Newspapers & Technology, in conjunction with the Post Press Federation and
Perfect Pallets Inc., each month publishes a question-and-answer column aimed at
postproduction issues. Topics and associated responses originate from the
Federation’s free online forum. Membership information and other details about
the Federation, sponsored and managed by Perfect Pallets, can be found at
www.perfectpalletspostpress.com.
Topic: Bundle speed
Q: Our newspaper transports
bundles (3/4 wrapped with bundle and route info printed on wrap) directly to the
truck driver through telescopic conveyors. We have increased the bundle size to
an average weight of 20 to 25 pounds and issue a bundle every 1.75 to 2.5
seconds to the trucker.
Our average load will take
about 10 minutes with the heaviest load taking approximately 40 minutes.
Does anyone have a standard
for how quickly they deliver bundles to the trucks? What are peoples’
experiences with the speeds they load at?
Response: We go out the window
at a rate of approximately one bundle per 3.3 seconds. We expect the driver to
be able to maintain that pace.
Follow-up: I took the numbers
you listed and did the math on them. If I use the lower number for the bundle
weight (20 pounds), the longest average time (2.5 seconds) between bundles, and
a point midway between the shortest and longest loading time (25 minutes), the
driver will be lifting and stacking about 480 pounds a minute. If it takes 25
minutes to load the truck, he will have picked up 12,000 pounds. I hope your
drivers are in good health.
With that being said, last
Sunday we had bundles of 12 and cycled the inserter at 18,000 copies per hour.
That puts us pretty close to the high side of your bundle-per-minute average.
We use page count to determine
our bundle size. I doubt if our bundles were more than 20 pounds.
Most of our trucks are loaded
in 10 minutes or less, with the larger ones taking about 20 minutes. We have two
people loading the two largest trucks.
We probably average about 18
to 22 bundles a minute depending on the size of the bundle. This is for our
Sunday advance package. Our daily paper is much lower than Sunday.
Topic: Pocket opening
snafus
Q: I’m having a heck of a time
with the secondary delivery on our 1372 insert machine with the pockets either
not opening, or opening and closing back so quickly that they will catch the
product and make a mess. I already know that I have to replace some shafts on
some of the moveable walls, but there are some that just don’t want to cooperate
with me.
Response: Did you adjust the
levers to spec? How do the cams look? Do they have grooves? What I’ve done is
put all levers to spec, then if I’m still having problems, move the
pocket-opening lever up or down a little until the problem is gone. With the
1372s that we had, you could never always go to spec.
Follow-up: It sounds to me
like either the inhibitor arm is hitting the pocket inhibit cam follower (not
enough distance between the two), causing it to slam shut when it is supposed to
be open or it’s firing too early, hitting the pocket in front of the one that
should be inhibiting.
Follow-up: You might want to
check and see if the pocket-unlocking cam has excessive wear.
Follow-up: This sounds to me
like the delivery inhibitor assembly is worn out. Check for excessive movement
or play. This can also happen if the air pressure is low or if there is an air
leak to the cylinder when it fires.
Topic: FSI pallet quality
Q: What does everyone do to
ensure they are getting the amount of product the shipper/printer says you are
getting?
Response: We weight-verify all
FSIs; this helps a lot to verify single sheets as it seems these shipments are
short more often than not.
Topic: Leftover inserts
Q: Other than throwing them
out, what does everyone do with leftover inserts?
Response: We recycle any
leftover inserts.
Follow-up: We continue to run
the inserts into zones that are in the same local area but were not included in
the run order. If we have no other zones we can run the insert into, then we
recycle any leftovers.
Follow-up: Our advertisers
seldom provide any overage. When it is clear that they have - or they indicated
that they will provide more than is required to cover the zones that they have
purchased - we will offer to run them into dealer zones, which generally don’t
receive all the inserts. Other than that, all our printed waste is baled and
shipped to an independent company, which uses the paper to make cellulose
insulation and mulch.
Topic: Skid flags
Q: Printers need to make skid
flags clearer to read from a forklift or truck so you don’t have to read the
fine print to get quantities, product and date.
Response: We have designed a
crack and peel sheet that contains all the information we need. The sheet is
attached to the side or top of the pallet.
Follow-up: We created a
virtual logbook that contains all the information about each skid and has the
ability to print a skid tag. Each skid gets a tracking number, and that’s how we
find the proper insert. We made the date, publication and tracking number so
large you can see them easily.
Topic: Managing preprints
Q: Does anyone scan the pallet
tag to show that the proper preprint is moved into the inserter? We have so many
different publications and so many different versions of the same advertiser
that we can easily get the wrong publications or wrong version put into the
machine in the middle of a run.
Response: We use four
different colored skid tags, and they rotate each week. Pink is always used for
TMC. I then created an inventory app and each day the jack person is given a
location sheet for what is in the inventory and where it is located on the
inserter.
Topic: Label production
Q: We are only getting 30
percent performance from our labelers; many labels fall off or are posted to the
paper incorrectly. We also have problems with the equipment blowing fuses or
throwing chains. It also appears our machines aren’t fast enough to keep up with
press speeds. We have to run them on press lines as opposed to the lines coming
out of the inserter since we decouple the press from postpress. Does anyone know
of something we can do to increase our efficiency?
Response: We have the
ProfitPackaging P3 machines and choppers. I don’t think speed is an issue with
their equipment. We may not run as fast off the press as others, but their
machines feed the notes as close to 100 percent as you can get. We have both
off-the-press and inserter belt conveyors and also a gripper off our (Goss
International Corp.) Magnapak set-up. You can adjust the positioning of the note
to the paper on the fly if necessary, but once you establish the right placement
for the equipment, just mark the floor so your operators know where to place it
when needed again.
Follow-up: Here’s an idea that
might work, depending on what delivery system you have. How many motors do you
have on your press delivery system? If you have (enough), you should be able to
install a different drive and control the section where the labeler is,
therefore, your shingling will be adjustable. We have our labeler mounted after
the inserter and have had to make these modifications to achieve a larger
spacing between papers. It should also work after the press, depending on your
set-up.
Follow-up: You might want to
examine two other areas: the glue pattern, and also sensors. We found a pattern
that worked well from NewsNotes. On the sensors, we had problems until we
installed new ones from Denex. These helped ensure the label was applied more
precisely. We use Accraply labelers and have GMA gripper conveyors.
Follow-up: You could have any
one of three problems. First, your machine may not be high enough to place the
notes on the papers. (Instead, your) machine is throwing them at the papers.
This should also take care of them going on straight. Once you find a good
height, just leave it set there. We never move our labeler machines around so
the height setting and positioning never changes. Second, try a full glue
pattern on the back. Third, we use round belting that comes with the GMA infeeds.
If these are on the outside of the labeler, it will rip them off. We had to
reposition the belts to avoid this.
Topic: Machine upgrade
Q: We are possibly looking to
move up to a larger inserting machine, and I am wondering if there is a
practical limit to the number of ads that can be inserted live without
compromising deadlines. We are a morning and afternoon paper, with circulation
48,000 in morning and 43,000 in the afternoon. We use a 1472 inserter with
on-line and dual delivery. It takes less than two hours using both deliveries to
get the job done for each publication. The dual delivery limits us to 5:1. When
that number is exceeded, we use a jacket and insert enough ads into it so there
are no more than five pieces for insertion into the main section.
Response: What I see is a lot
of opportunity. The 1472 is a good machine and there are ways to expand its
capacity. In your situation, though, it might warrant a serious look at a new
inserter.
Follow-up: I don’t know your
space situation, but rather than purchasing a larger inserter, maybe you should
consider buying another 1472. This gives you a backup machine and doubles your
insert capacity. There are lots of them out there and would not be very
expensive. You might also consider two GMA SLS-1000 inserters. These inline
machines fit better into certain scenarios and the hoppers are nearly identical,
so your operators’ learning curve would be small.
Follow-up: We have two press
runs a day at minimum, one that is our classified section, and then the main
run. We use the classified section as a cover to run all of our inserts into.
This way, when our main run comes off the press, it goes straight to our
distribution centers. The only delay would be for press problems.s
Follow-up: We insert live
every night, all papers go out complete. Our circulation is 32,500 Sunday,
35,000 Saturday and about 30,500 weekdays. We have 2 1/2 hours on weekdays,
three hours on Saturday edition and 3 1/2 hours for the Sunday edition. We run
one inserter with one delivery on the final run. We have never limited the
number of inserts for any day. We will prepack if we have more than 11 or 12
inserts for any day. We can go 15:1 but in order to get out on time we prepack
into an early run (classified) if we are more than 11 to12 pieces. We run two
prepacks for every Sunday, which are re-inserted on the final pass. Staffing is
the biggest challenge; people have different days off on some weeks and work
days off on occasion.