Thursday, October 10, 2019

Folding and Perforation: Metal Open Band End Processing

Today we show examples of end processing on metal open band.
In the picture below, end folding on your left and perforation on your right. 

Folding and Perforation at Metal Open Band End
These belts are thickness 0.2mm.  Steel grade is SUS 304H.
This is spring type of stainless steel.
It endures repeated bendings around rollers and pulleys.
So these metal belts are used for power transmission and covers for actuators and protection of certain parts in machines.

4 holes are for fixing this end.
Normally we sandwich this end by unit (Assy) plate block and fix ends.

Ends in the picture are folded.  This is quite rare.  Usually they are straight and not folded.
But we do lots of process and live up to customers' request.
Our minimum lot of open band is one belt.

Vacuum Conveyor Application Video: Pulling in Film and Metal Foil / Tension Adjustment

We are focusing our sales on suction conveyor.

A conveyor, in general,  carry things.
In addition, suction conveyor can tow a continuous film, metal foil and metal strip under tension like in the video below.
In this test we applied tension by weight.
The degree of tension is adjusted easily by controlling suction.
Material is pulled without wrinkles and without vertical movement like the below.

In both sheet feeding and roll-to roll, films and metal foils are pulled on a belt by vacuum and those thin material stay flat on the belt.

Thursday, September 19, 2019

Metal Belt Fluororesin Coating: Heat-resitance, Wear-resitance, and Non-adherent Property

We do Fluororesin coating on our stainless steell belts and we have increased kinds of coating as the picure below.


Hearing your needs, we choose types of Fluororesin.
In some coating heat-resistance is normal but non-adherent property is excellent.
In the other, abraion resistance stands out.
And the we coat that material on our metal belts and install them in our conveyors.

When you need to add functions on metal belts, please contact us.
In addition to the above examples, gray coating is also popular.
This coating cancel reflextion of stainless steel and is used for camera inspection.

Friday, September 13, 2019

DYMCO'S Vacuum Conveyor Serves Best for Varible Printing

                  DYMCO'S Vacuum Conveyor Serves Best for Varible Printing

SNS and email ads are popular, still we find direct mails in our posts.
Direct mails are made after printing different names and address on each mail.
This is what we call 'variable printing.' 
It is done by inkjet printing.  inkjet printing is written 'IJ' in short.
IJ automaticcally prints differrent info on each item.

IJ does not use plates, fixed info, like offset press or gravure printing. 

IJ prints data and data is variable.
This is why inkjet can print different names, QR codes, IDs on every card and envelop.
Multi-product small lot is exactly the very feature of inkjet printing 
in contrast to offset press and gravure printing that print the same data in volume.

Then what happens when you transport those cards and envelops fast enough in inkjet printing?

Due to wind pressure during transport,
corners and edges of these thin paper items may easily float, 
and they may deviate from the initial position.
These situations result in printing failure.

Landing positions of Picoliter-level ink drops are essential in inkjet printing.
This is same for IJ with UV inks.
Ink drops are shot aiming at certain X-Y positions.
But if their landing height is longer than aimed,
ink drops do not land at expected X-Y psitions, resulting poor images.

Our vacuum conveyor sucks thin cards and envelops and transport them right under the inkjet head. 

Landing height is kept minimum even for thin material like paper and films.
This high-speed and precise transport is essential for variable printing.

Sometimes it is difficult to export the whole suction conveyor overseas.
But we will make metal suction/ vacuum belts and give advise for designing the vacuum cocnveyor.

Friday, August 30, 2019

Weld Seam of Stainless Steel Belt

Today, I would like to talk about weld seam of Dymco’s steel belts.

Dymco’s steel belts used in multiple applications – such as continuous inspection conveyors, vacuum conveyors, heating conveyors, food conveyors.
Among those applications, the double belt press conveyor – the continuous heat press unit sandwiches the workpiece between a pair of steel belts - is one of the applications requires a high quality in weld seam.

Dymco’s steel belt features a very flat weld seam at its regular finish. Though, with the additional polish on the weld seam, unevenness of the weld seam (height of the weld bead) can be less than 5 microns. Dymco fulfills the customers’ various requests with the suitable steel belt.

Dymco’s steel endless belt with the regular weld seam.

Dymco’s steel endless belt with the polished weld seam.

If you have any interest in our products and technologies, please feel free to contact us.