Patent ID: 8376014
Filing Date: 2013-02-19
Classification: B31F

Abstract:
1. A corrugator comprising: a chassis, which is composed of two opposite and spaced primary wall panels; a rotary main shaft, which is rotatably mounted between the two primary wall panels of the chassis, the rotary main shaft having opposite ends that are respectively coupled to roller support seats; two corrugation roller sets, which are detachably mounted to the two roller support seats, each of the corrugation roller sets comprising two detachable secondary wall panels, a primary corrugation roller, and a secondary corrugation roller, the two detachable secondary wall panels being respectively and detachably mounted to the two roller support seats, the primary corrugation roller being rotatably mounted between the detachable secondary wall panels, the secondary corrugation roller being rotatably mounted between the detachable secondary wall panels, each of the corrugation roller sets comprising two clutch devices, which are respectively mounted to the two detachable secondary wall panels to control the secondary corrugation roller moving toward or away from the primary corrugation roller; and a hold-down roller, which is mounted to the chassis at a location close to one of the corrugation roller sets; wherein each of the clutch devices comprises a swing arm and a force-application hydraulic cylinder, the two swing arms being respectively associated with the two detachable secondary wall panels, each swing arm being pivotally coupled to the respective detachable secondary wall panel, the swing arm having an end rotatably coupled to the axle of the secondary corrugation roller, the two force-application hydraulic cylinders being respectively mounted to the detachable secondary wall panels and respectively associated with the swing arms, each of the force-application hydraulic cylinders comprising an extendible/retractable bar connected to the respective swing arm to control the swing arm for moving the secondary corrugation roller toward or away from the primary corrugation roller; and each of the roller support seats is provided, at opposite ends thereof, with at least one positioning hydraulic cylinder, which carries and drives an extendible/retractable fixation pin, the detachable secondary wall panels of each of the corrugation roller sets being each provided with at least one positioning seat, which forms a positioning slot to selectively receive the fixation pin of the respective positioning hydraulic cylinder to fit therein or separate therefrom.