Atlantic Packaging Corporation, like other growing and successful companies, has blazed a winding path to its present incarnation as a trade merchant of converted materials to the packaging industry. Getting here speaks volumes of management with a vision of the future and the will to respond quickly to market change and growth opportunity. Privately owned […]
In older stationary bed knife (or ‘dead knife’) cutter designs a single motor drives the pull roll section and powers a second drive train to change the speed of the revolver relative to the speed of the draw drum. Typically mechanical designs such as expansion pulleys, change gears or gear boxes were used within the […]
A good first step – where possible – is to have your scheduling department arrange sheeter orders so you don’t have to reposition or introduce additional slitters each time for each production run. Most set up time associated with slitting is positioning the bottom rings. Here are some time saving tips: If there are popular […]
The short answer is yes – by changing the pulley ratio between the cutter motor and the main drive shaft. But there are several implications to making this change. Make sure that the rotating cylinders, particularly the draw drum and knife revolver, are dynamically balanced. Operating unbalanced components at higher speed will prematurely wear out […]
Modern AC frequency drives actually generate “noise” – electrical harmonics and transients that can affect other electrical components. Maxson uses proven grounding methods to minimize noise associated with drives. Among the standard designs employed by Maxson in their dual motor drive retrofits: Inclusion of an isolation transformer between the main line and the electrical cabinet […]
Actually it is a lot easier to troubleshoot a machine that is controlled with electronics. Most new sheeters have a programmable logic controller (PLC) governing the operations of the sheeter instead of relay logic. Typically a dual motor drive with two motors, two AC drive and a motion controller takes the place of the mechanical […]
It starts with scheduling. Orders should be set up ahead of time so the rolls and skids are available for the job. Next, stage the rolls behind the sheeter so the operators are not waiting for them. An adequate number of skids should also be placed near the stacker so they are readily available to […]
An operator must be thoroughly familiar with how the machine works. Mechanical aptitude is helpful in learning this. The operator must also know the safety requirements for the machine. Training in the setup procedures is necessary. Experience in web handling is helpful.
Let’s look at setting sheet length first. Setting up for length changes on a modern sheeter can be done fairly quickly. There are four items to be set. One is the overlap carriage located in the delivery system. This is typically a hand wheel adjustment with a scale indicating the sheet length. The next item […]
Generally, jam ups at the pile are caused by sheet packets lacking sufficient rigidity that they buckle as they drop or are pushed out into the pile. There are a number of set up issues to consider depending on the type of jam up. Insufficient momentum to drive the sheets forward When there is not […]
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