PDF Publication Title:
Text from PDF Page: 010
HANDLING AND STORAGE Hinging is the preferred method for integrating an EVT with a mold or fixture. It eliminates handling damage and aligns the EVT to the mold perfectly everytime. On larger tools, high-temp gas-spring cylinders are commonly used to assist in opening and closing. An added safety device is a gas-spring lock tube that must be disengaged in order to close the tool. Installing a spring-loaded locking pin at the back of the tool along the hinge edge also prevents closure of the tool until the pin is released. Hinges can be attached directly to the mold surface or on brackets added to the mold structure if there isn’t sufficient area on the mold, or if the mold construction is not robust enough. For hinge types, we have our standard T-7 hinge that is slotted to allow for the seal compression movement, or we can use a fixed-pivot hinge along with swing clamps on the opposite side of the hinge edge. This arrangement compresses the seal when the tool is closed to assure vacuum initiation. The swing clamps are usually required since the fixed pivot hinges tend to keep the seal along the front edge from contacting the mold. Swing clamps are stainless steel L-brackets welded to a stainless steel hinge and attached to the frame. They typically rotate 270° and grip the underside of the mold lip. Note: For some room-temp production work (example: bonding wood bracing to guitar backs), having fixed- pivot or short-slot hinges and no front clamps is very efficient since the operator simply pushes down lightly on the front of the tool until it initiates, then moves on to the next tool. The clamp is not required and only adds time and complexity to the process. Standard, slotted T-7 hinge with detent mechanism Mold with steel brackets added to accommodate fixed- pivot hinges and high-temp gas-spring cylinders. Swing clamp attached to upper surface of EVT frame, shown in the unlatched position. Swing clamp latched to the underside of the mold. A flange or lip is not required for the clamp to be functional. See next page. PAGE 9 © 2004 TORR TECHNOLOGIES INCPDF Image | DESIGNING MOLDS AND FIXTURES Vacuum Bagging
PDF Search Title:
DESIGNING MOLDS AND FIXTURES Vacuum BaggingOriginal File Name Searched:
TorrMDG.pdfDIY PDF Search: Google It | Yahoo | Bing
5,000 BF Shipping Container Lumber Dry Kiln For Quality Lumber The 5,000 BF container kiln consists of one 40 foot high-cube aluminum shipping container... More Info
Shipping Container Lumber Dry Kilns by Global Energy Global Energy designed and developed the container kiln back in 1991. The purpose is to give access to portable sawmill owners, furniture makers, and small business the value added profit of dry kiln lumber and quality hardwoods... More Info
Vacuum Kiln Conversion Kit for Lumber and Wood Dry Kilns Convert your existing conventional dry kiln into a fast drying vacuum kiln. Similar to vacuum bagging in the boat building and aircraft industry, we have come up with a proprietary process which allows you to build a very simple vacuum kiln at a fraction of the price, and without the intensive conventional metal chamber structure... More Info
Vacuum Pump Cart System for Bagging Clamping Wood Drying and more Vacuum Cart with 2HP Pump and Dual Pistons with multiple multiplex vacuum ports and liquid reservoir... More Info
Vacuum Bagging Basics Vacuum bagging is a method of clamping, which has traditionally been used in the composites industry, but can also be used for vacuum drying materials, including wood products... More Info
CONTACT TEL: 608-238-6001 Email: greg@globalmicroturbine.com (Standard Web Page)