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Packaging Problem

06/18/2007 12:39 AM

We have a Laundry Powder Packaging Machine, which fills and packs laundry powder packets of 250g, 450g, and 500g.

Now that we have changed to a different supplier of cardboard packages, the machine can not pack the new packets perfectly as compared to the old onces (from original supplier). The new packets are a bit thicker than the old packets though they have similar dimensions.

we have done all the necessary adjustments of centre fold (flap) tuckers and side or end rail tuckers, but are not getting a good finish on the packets.

As a result we are still having leakages from the bottom of the packets as the folding and sealing are a bit off squared, not aligned for a perfect bottom seal.

Our fitters and I have made several redesigns of end tuckers butt are still having poor sealing at the bottom of the packet. The sealing temperature is good, the problem lies in the folding of the packets flaps.

How can we get the bottom packet folds (flaps) to perfectly fold in for a perfect sealing?

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Anonymous Poster
#1

Re: Packaging Problem

06/18/2007 10:16 AM

Package flaps may not be the problem. Check the width of the box to insure the machine is letting it stay fully open. Side tension would cause the box to form a parallelogram. Which would force flaps off at angles. Also since the box is of heavier material check to insure when its being open the machine opens it so the corners are square.

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#4
In reply to #1

Re: Packaging Problem

06/19/2007 5:37 AM

Thank you guest, we've been working along your remarks and are nearing good results, but theres that slight parallelogram misalignement. We've adjusted packet carrier fingers on the chain track, center tuckers, side flap folding bars (side tension).

I have also been considering what Randall may mean, if I'm wright.

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#2

Re: Packaging Problem

06/19/2007 2:32 AM

Is it possible to make the crease for the inner flaps slightly higher (thickness of the card) than the crease for the outer flaps?

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#3
In reply to #2

Re: Packaging Problem

06/19/2007 5:27 AM

Hi Randall,

You mean increase the applied creasing pressure on the inner flaps to fold a bit further in-wards by the center tucker, so that it dose to fall back to interfere with the outer flaps as they are folded in by side flap fold bars?

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#5
In reply to #3

Re: Packaging Problem

06/19/2007 6:04 AM

Hi Ron,

If you can't actually move the crease a little to accommodate the thicker card: then yes.

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#6
In reply to #5

Re: Packaging Problem

06/19/2007 6:44 AM

Hi Randall,

I now understand what you mean. Yes we can make the inner flaps crease at a slightly higher dimension than one for the outer flaps.

Thanks, I shall do that. I'm electrical (just graduated in 2005), and since our mechanical engineer is ill at the moment, I had to assist with the job.

Its 8:31pm in my country Papua New Guinea, I stayed back at work to finish other jobs, also to use the net for CR4. I'll get our day shift fitters to make the creasing tomorrow. As we only have one night shift fitter and his has his listed choirs to do.

Thank you very much to you all once again. I'll inform of the results.

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#7

Re: Packaging Problem

06/25/2007 9:48 AM

Hi Randell & Guest;

Thank you very much for the help. We squared all carrier fingers so that packages are held in square position, adjusted the side tension bars (side folding bars), remoidfied the center fold bar-this time inceasing the folding/creasing height by mounting a slopping creasing hamp.

As a result all worked well, packages travel through with perfect squareness in opening to creasing folds from center and side folding bars.

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