Over time we have accumulated a variety of purchased parts we use on the equipment we manufacture. We always make an effort to draw from this pool of parts when updating designs or when creating new designs. There are times when we have 21mm wide pulleys available in our system with the desired...
I would like to understand why some same pitch timing belts and pulleys are available in 20 and 21 mm widths and if there is any reason I should not use a 20 mm belt on a 21 mm wide pulley.
For example: 8MGT-416-21 and 2200-8MGT-20
Thanks for your response, I appreciate your input. Here are some additional details that will clarify this specific process.
In this application the individual products passing thru the nips are intermittent. As a result, the nips open and close once every cycle to "eject" each product. The...
I can't imagine that this isn't a common design problem. I am driving two rollers, one stationary and one that moves from a position of contact with the stationary roller to a position that creates some clearance between the rollers. The simplest way to move the second roller is to mount it on a...
We are looking at a reduced availability of MIC-6 Cast Aluminum Tool and Jig material which we have used for years for our heated seal dies. An alternative called CAST5000 has been suggested by our vendor. I need to confirm that it is acceptable and have tried to collect properties for both...
I thought I would add an image to provide a little more clarity to our application.https://files.engineering.com/getfile.aspx?folder=a484148d-964e-4f33-984f-1cbdc30788f3&file=Score_Cutter.jpg
I appreciate your response and I'm looking into the geometry of the blade we are using. I also took a look at a Gerber cutter you mentioned. Our application doesn't require anything that fancy. We are slitting a pair of straight lines about 30 inches long. Because the slit is not continuous it...
We slit plastic film with a round slitter blade. The film is stationary and resting on a ground hardened plate. The blades are pneumatically actuated forcing them down against the film and then advanced along the film for the length of the cut, after which the blade is retracted and returns to...
I appreciate all the helpful feedback. I think I now have multiple directions to pursue in reducing wear in my application. I'll try to reply back with any results that may be of interest.
Here is second image that did not upload with my previous post.https://files.engineering.com/getfile.aspx?folder=ba7d2b22-a6c0-486e-9c14-2c1a059321b4&file=folding_front.jpg
I have attached a couple of images for clarity.
The polyethylene web is continuously pulled through this portion of the packaging line. As the web is pulled over the folding board, the web is folded in half and turned horizontal. The edges of the folding board wear from the continuous sliding...
The machine in question manufacturers flexible packaging using various films one example being polyethylene. Part of the process pulls the film over a triangular folding board whose edges can be made from various metals, such as stainless steel or aluminum. We have used various treatments and...
I am certainly open to training. As a first step I would like to read a comprehensive description and discussion of the methodology of Risk Assessment. The granular level I am looking for seems to be hard to come by. I have purchased ANSI B11.TR3 but it lacks the details I seek. Any resources...
I am doing a Risk Assessment on a production machine using ANSI B11. It is not clear to me exactly what is meant by Probability level and Exposure level.
Probability is described as: "The likelihood that an individual, when exposed to the hazard, will suffer the consequence" and the levels vary...