{"id":3221,"date":"2026-05-15T19:10:31","date_gmt":"2026-05-15T11:10:31","guid":{"rendered":"https:\/\/www.dgfeeder.com\/?p=3221"},"modified":"2026-05-15T19:14:18","modified_gmt":"2026-05-15T11:14:18","slug":"automotive-cross-beam-production-line-selecting-a-double-head-uncoiler","status":"publish","type":"post","link":"https:\/\/www.dgfeeder.com\/de\/automotive-cross-beam-production-line-selecting-a-double-head-uncoiler\/","title":{"rendered":"Produktionslinie f\u00fcr Quertr\u00e4ger f\u00fcr die Automobilindustrie - Auswahl einer Doppelkopf-Abwickelhaspel"},"content":{"rendered":"<p>Eine typische Fertigungslinie f\u00fcr Quertr\u00e4ger in der Automobilindustrie erstreckt sich \u00fcber 50 bis 60 Meter und umfasst die Arbeitsschritte Abwickeln, Richten, Zuf\u00fchren, Stanzen und Profilieren. Bei solchen Anlagen mit ausgedehnten Prozessabl\u00e4ufen ist der gr\u00f6\u00dfte Effizienzfresser selten die Taktzeit einer einzelnen Maschine \u2013 vielmehr sind es die Stillstandszeiten beim Coilwechsel. Bei herk\u00f6mmlichen Einkopf-Abwicklern m\u00fcssen die Bediener die gesamte Anlage anhalten, das restliche Band abwickeln, eine neue Spule einheben, diese festklemmen und ausdehnen, die Vorderkante durch die Richtmaschine f\u00fchren und die Spannung wiederherstellen, bevor die Produktion fortgesetzt werden kann. Diese gesamte Abfolge nimmt selbst bei erfahrenen Bedienern 15 bis 30 Minuten in Anspruch. Bei 4 bis 6 Coilwechseln pro Tag auf einer stark ausgelasteten Quertr\u00e4ger-Anlage bel\u00e4uft sich die kumulierte Stillstandzeit t\u00e4glich auf 1 bis 3 Stunden \u2013 ein stiller, aber erheblicher Verlust an Kapazit\u00e4t und Umsatz.<br \/>\nDie Doppelkopf-Abwickelmaschine der Yuanjia KHT-Serie wurde speziell entwickelt, um diesen Engpass vollst\u00e4ndig zu beseitigen. Im Mittelpunkt ihrer Konstruktionsphilosophie steht die abwechselnde Zuf\u00fchrung an zwei Stationen mit Coilwechsel ohne Stillstandzeiten. Jede Station verf\u00fcgt \u00fcber eine unabh\u00e4ngig angetriebene Spindel, die von einem Siemens-Frequenzumrichtermotor mit eigenem Umrichter angetrieben wird. Ein hydraulischer Spreizmechanismus erm\u00f6glicht die Aufnahme von Coils mit Innendurchmessern von 460 mm bis 530 mm und einem maximalen Au\u00dfendurchmesser von 1600 mm. W\u00e4hrend eine Station aktiv Material in die Anlage einf\u00fchrt, kann die gegen\u00fcberliegende Station gleichzeitig das Vorladen und die Vorbereitung eines neuen Coils abschlie\u00dfen. Wenn sich das aktive Coil seinem Ende n\u00e4hert, f\u00fchrt die Maschine eine automatisierte Abfolge von Schritten aus: Festklemmen des Coilendes, sauberes Abscheren, Drehen des Revolvers um 180 Grad und Einf\u00e4deln des neuen Coilkopfes \u2013 all dies erfolgt ohne Unterbrechung der nachgelagerten Produktion.<br \/>\nDas integrierte Laser-Geschwindigkeitserfassungssystem passt die Geschwindigkeit des Abwicklers dynamisch an den Echtzeitbedarf der nachgeschalteten Produktionslinie an. Diese Regelung in einem geschlossenen Regelkreis stellt sicher, dass die Materialschleife zwischen Abwickler und Richtmaschine unter optimaler Spannung gehalten wird, wodurch Materialschwankungen wirksam beseitigt und indirekt die Stabilit\u00e4t und Genauigkeit des Zuf\u00fchr- und Pressvorgangs verbessert werden. Bei Quertr\u00e4geranwendungen, bei denen Lochpositionstoleranzen von \u00b10,15 mm Standard sind, f\u00fchrt diese Spannungsstabilit\u00e4t direkt zu h\u00f6heren Erstdurchlauf-Ausbeuten.<br \/>\nBetriebsdaten von installierten Quertr\u00e4ger-Fertigungslinien best\u00e4tigen, dass der Einsatz des KHT-Doppelkopf-Abwicklers die Gesamtanlageneffizienz (OUE) um 45% erh\u00f6ht. F\u00fcr eine Quertr\u00e4ger-Produktionslinie, die einen Jahresumsatz im zweistelligen Millionenbereich erzielt, bedeutet ein Effizienzgewinn von 45% zus\u00e4tzliche Produktionskapazit\u00e4t im Wert von mehreren Millionen Dollar, ohne dass \u00fcber die Abwickelvorrichtung selbst hinaus weitere Investitionen erforderlich sind. Mit einer Tragf\u00e4higkeit von 8.000 kg pro Spindel (insgesamt 16.000 kg) und einer maximalen Liniengeschwindigkeit von 60 Metern pro Minute bew\u00e4ltigt der KHT das gesamte Spektrum an Quertr\u00e4ger-Spezifikationen \u2013 von d\u00fcnnwandigen Verst\u00e4rkungshaltern bis hin zu hochbelastbaren Fahrgestell-Haupttr\u00e4gern aus DP780, CP800 und sogar 22MnB5 hergestellten hochbelastbaren Fahrgestell-Haupttr\u00e4gern.<\/p>","protected":false},"excerpt":{"rendered":"<p>A typical automotive cross beam production line spans 50 to 60 meters, integrating decoiling, straightening, feeding, stamping, and roll-forming operations. In such extended-process layouts, the most devastating efficiency killer is rarely the cycle time of any individual machine \u2014 it is the coil change downtime. Conventional single-head uncoilers require operators to stop the entire line, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2906,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3221","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Automotive Cross Beam Production Line \u2014 Selecting a Double-Head Uncoiler - Dongguan Yuanjia Machinery Co., Ltd.<\/title>\n<meta name=\"description\" content=\"Automotive Cross Beam Production Line \u2014 Selecting a Double-Head Uncoiler\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.dgfeeder.com\/de\/automotive-cross-beam-production-line-selecting-a-double-head-uncoiler\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Automotive Cross Beam Production Line \u2014 Selecting a Double-Head Uncoiler - 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