Troubleshooting Front Drive Belt Issues – Solutions from Kenray Forming

 

Mark Evans from Kenray. Today’s short blog is talking a little bit about some of the common problems experienced with front drive belt formers.

Here, you can see a typical former that’s been returned for some refurbishment work.

Typically, you’ll see burn marks on the center of the PTFE strip. Either side of the PTFE strip you’ll see grooves that have been warn by the drive belts.

Here you can see the comparison between the old and the new PTFE strip.

We recommend you change these frequently as the uneven surface will compromise the back seal.

We would also recommend that when you change the PTFE strip, you change the drive belts at the same time. At Kenray,

we’ve developed many variants of the TNA back seal to ensure, proper sealing, particularly with Matt and paper film.

In the example, shown the PTFE is replaced by stainless steel, which also assists in keeping the tube stable.

The insert in the center can be replaced with different materials to seal different films.
So there you have a short video on front-drive belt formers. I hope you found that useful. If you need more information, please either visit our website or give us a call on +44 (0)1530 400 100 or email perform@kenrayglobal.com

Thank you very much.

Troubleshooting Creasing Issues – Solutions from Kenray Forming

 

So it is a short presentation would like to talk to you a little bit about bag creasing.

One of the reasons for creasing is the age of the shoulder, as the shoulder becomes older, it gets worn by the film as it’s constantly going over the lip. This causes what we call sharks teeth the shark’s teeth that we just described causes the film to rock up as it goes over the lip, this, in turn, causes jagged lines to form down the bag.

Another cause of creasing is when the tube is too close to the shoulder and causes the film to pinch. You can see the consequences of that on the slide shown.
Another cause of creasing can be the role of position which is incorrect and too far back here. You can see that as a consequence of the incorrect role of position. We have creasing on the outside of the bag, which looks like a herringbone
shape and also on the inside of the bag.
So there you can see. Creasing is not only a problem for exterior marks on the bag, but it also breaks the seal inside, and this, in turn, reduces the product shelf life.
So there you have a short video on creasing. I hope you found that useful. If you need more information, please either visit our website or give us a call on +44 (0)1530 400 100 or email perform@kenrayglobal.com

Thank you very much.