Patent ID: 7779879
Filing Date: 2010-08-24
Classification: E06B,Y10T

Abstract:
1. A machine comprising: a feeding unit located at a front end of the machine and including two feeding wheels which are connected to a first frame in which two rolls of fabric strips are located, the two feeding wheels driven by two motors; a combining unit installed on a base which is located at a mediate part of the machine, the combination unit including an operation portion which includes a cutting blade and a ultra-wave generator, the cutting blade cutting surplus from two sides of each of the two strips and the two strips being securely connected to each other along two respective sides thereof so as to form an expandable slat; a scrolling unit located at a rear end of the machine and including a scrolling wheel which is driven by another motor so as to scroll the expandable slat from the combining unit; a control unit including a programmable controller and multiple tension detection members which are located at the front and rear ends of the machine so as to detect tension of the strips and the expandable slat, the tension being sent to the programmable controller which adjusts speed of the motors of the feeding wheels and scrolling wheel.