The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 02, 2002
Filed:
Nov. 13, 2000
Hong-Sen Yan, Tainan, TW;
Wei-Ren Chen, Tainan, TW;
National Science Council, Taipei, CN;
Abstract
A general type press system with variable-speed slider-crank mechanism driven by a servomotor which can be used for various types of press work by providing various corresponding input speed trajectories. The press includes a frame, a linkage-mechanism with a crank as its input and a slider as its output, and a servomotor. The servomotor is used for driving the crank of the linkage-mechanism. The output motion of the press, i.e., the ram's motion, is accomplished by the slider of the mechanism. The speed of the servomotor is controlled by a micro-computer or a personal computer equipped with a digital signal processor (DSP). This computer supports a number of speed functions for different types of press work to obtain optimal processing results. Because the existing traditional linkage press can also be upgraded to a multi-purpose press, the disclosed press is an innovative design with the advantages of flexibility and practicability.