Extrusion Asia Edition 2-2023

D rain tubes can be inserted prophylactically to prevent or re- move the accumulation of fluid in a wound. Alternatively, such tubing can also be therapeutically inserted to evacuate an existing collection of fluid in a wound. Fluid is removed in order to treat or prevent infection and promote wound healing and patient comfort. Drain tubes can also be used to diagnose post- operative complications such as an anastomotic leak or hemor- rhage. The Guill design has unique features that eliminate the need to weld or otherwise join sections with different profiles together. “Our automated extrusion process drastically changes the ex- truded profile in production, with no need to join separate sec- tions of internal profiles,” comments Tom Baldock, Sales Manager, Guill Tool Guill has engineered this new reciprocal tubing die with various features, unique to the product. The traditional tip and die as- sembly is replaced with a linear reciprocating assembly that changes the tube’s profile within a given length. This process is repeated throughout a single extrusion run without interruption. Cutting capability, in association with the extrusion speed, cuts the finished product to length. While cost and value stream activities are reduced, quality is ac- tually improved. Only one extrusion run is needed to produce a finished product, as opposed to multiple extrusion runs with tooling changes along with a manual assembly operation to con- nect different tubing shapes via sonic welds or other methods of joining. Guill’s new reciprocating head eliminates this entire as- sembly operation. It also eliminates in-process inventory. Thus, there is no need for storage of various tubing shapes and con- nectors needed for assembly, fulfillment of orders and reple- nishment of finished goods. Furthermore, the reciprocating head eliminates a connecting piece, allows JIT production and products made-to-order. Lastly, it reduces total run time from receiving the order to shipping product. In the multi-layer extrusion arena, a primary focus of Guill Tool over the years, the company has also introduced the latest ge- neration of its Series 800, the 2-to-6 layer extrusion tooling de- signed to produce the highest quality, highest material-efficient 1/8” to 6” OD tubing for medical and surgical applications. The redesigned Series 800 produces flawlessly smooth extrusion and layer definition of Fluoropolymer and other materials for all multi-layer, multi-lumen medical tubing. The Guill design further allows thin layer combinations of polymers and adhesives to 0.02mm or less. Guill offers its extensive line of crossheads and inline tubing dies in fixed and adjustable center, for single or co-extrusion appli- cations. The tooling is designed to process all compounds and features the company’s patented, precision Feather Touch Con- centricity adjustment, the Seal Right System, which combines with the Feather Touch system to eliminate polymer leaking. Guill also offers its unique spiral flow distribution system. All Guill tooling is produced with rigorous computer simulation of the flow channels using Computational Fluid Dynamics (CFD) programs, resulting in optimum uniform flow with no weld lines. Finally, the new Series 900 of inline tubing dies from Guill Tool offers improved extrusion performance and capabilities to cus- tomize at standard, off-the-shelf prices. The new series is applicable to extrusion of hose or pipe ranging from 0.005“ (0.127mm) to 8.0“ (635mm) in diameter for all types of OEM, food service, automotive, industrial, telecom and medical applications in polymer or rubber. 34 挤压工具 Extrusion Asia Edition 2/2023 Guill Series 800