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Holzher edgebander setup

1/31/16       
Jay Member

I just purchased a 2003 holzher sprint 1321 edgebander with premill and corner rounding. I had a technician spend an entire day here and I cannot not get it figure out how to get a consistent glue line applied to the edge. does anyone have any info that can help.

I do have good glue flow out of the nozzle and I have the nozzle adjusted to aprox 2mm of tension on the board. As the edge passes through all the glue gets scraped off at the end of the nozzle and drips down the front of the glue applicator. any help would be greatly appreciated

thank you

2/1/16       #2: Holzher edgebander setup ...
Stuart

Was it an Edgebander technician?
Is your part hitting the shoe or the roller?
It shoul;d only hit the shoe, but the technician would have known that ?

2/1/16       #3: Holzher edgebander setup ...
Gerry

It sounds like your glue feed is not turning off quickly enough and leaving a gob of glue on the nozzle that is scraped off when the panel is fed in, or the glue feed turns on too early and the same result. My bander has adjustments in the PLC for this but I don't know how your machine deals with the timing. Do you have a manual for the machine? This is something the tech should have sorted out.

Gerry

2/1/16       #4: Holzher edgebander setup ...
jay Member

Thank you for response

yes it was an edgebander tech

the glue on this machine is applied with a metal nozzle with small holes and grooves in it. as the edge passes across it drags or scrapes all the glue off the nozzle but nothing stays on the edge

2/2/16       #5: Holzher edgebander setup ...
Dave L

"I have the nozzle adjusted to aprox 2mm of tension on the board"

Do you mean that the nozzle sits proud of the fence ~2mm?. I don't think it's a critical adjustment, but that's about where mine sits. When a board goes through, does the board push the nozzle back (i.e. flush to the fence)?

Are you saying there is zero glue on the board, that _all_ of it gets scraped off?

2/2/16       #6: Holzher edgebander setup ...
dustmaker1 Member

Hi Jay, this problem seams perplexing since the glue nozzle is designed to apply glue not scape it off. Was the technician a Holz-Her guy or just a generic tech? Why I ask is some people can not get there heads wrapped around how the nozzle applies glue, I can not imagine any of the Holz-Her people or even independents that actually know the system to not be able to figure it out quickly. Did the technitian teach you how to clean the nozzle properly without scratching the gate inside and the wire brushing of the nozzle?

The glue is kind of pressed into the core of the panels so I can not imagine even if the application station was worn out at the back end it would still fill in the panel and look more like being applied with a putty knife instead of the series of flats and beads that it should look like.
Is the glue station heating up to the proper temp for the adhesive? Using a thermal gun on the nozzle not just the correct temp on controller.

This type of applicator has its own quirks, top, bottom and end glueing all the way to the edges without to much on panel but have not heard of this problem.

What does a adhesive test without trying to apply tape look like?

Paul R

2/19/16       #7: Holzher edgebander setup ...
Jay

thank you all for your responses I figured that issue out and have the edgebander running great besides one more issue if I can get some help on this. I am having problems with the edge tape running up on the board. pcs that are over 3' long are really an issue and I cannot find adjustments in the manual on how to fix this. I can watch the edge tape being applied to the edge and it is getting g in a bind and being twisted on the first pressure roller, Again thank you for the previous responses

Jay

2/19/16       #8: Holzher edgebander setup ...
dustmaker1 Member

How thick of banding are you having trouble with? I assume you have the hold down bar the one right before the nozzle adjusted properly, if thin tape I like to hold the tape upright and bring bar down with only about .5mm free play. 1mm banding has a lot of advantages over .5mm, so we use that 99.9% of the time for majority of work.

Take a look at your banding it may look ok in the roll but stretch it out 2 or 3 feet and see how straight it is, some of it is so snaky that it is impossible to run and you end up with the problem you are having. It can sometime also change width so much that you need to allow to much gap and it will not hold down properly. Just want to make sure you are working with good banding before trying to adjust.

Good luck
Paul R

12/21/21       #12: Holzher edgebander setup ...
Ben

Just received a 1321 edgebander any chance you we could chat? I am waiting on a tech ..... but need it running!

1/3/22       #13: Holzher edgebander setup ...
Jay Rump

Ben

what issues are you having. I can see if I can help

Thank you,
Jay

10/16/22       #15: Holzher edgebander setup ...
Sean Kovacs  Member

Website: http://www.kovatechcnc.com
Check to make sure the bottom of the edgeguide where the tape comes out to meet the pressure section, sometimes they get installed such that its not in its groove and the glue gets scraped off before it ha a chance to pick up the tape.

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