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Holzher edgebander setup1/31
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
Was it an Edgebander technician?
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.
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
"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?
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.
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?
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
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.