Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Apparatus for a stepwise advancing of a web-shaped workpiece










Image Number 4 for United States Patent #5110026.

The crank assembly of the advancing apparatus is eccentrically supported in an intermediate shaft. This intermediate shaft is in turn supported in an oscillating slide. Accordingly, the oscillating movement of the slide is superimposed over such of the driving pivot of the crank assembly. The intermediate shaft includes a cam disk. Due to the cam disk the intermediate shaft oscillates in operation and causes in turn the oscillating movement of the slide, which oscillating movement proceeds oppositely to the oscillating movement of the driving pivot. The sum of these two movements in the zones of the end positions thereof is accordingly zero. Accordingly, the driving pivot is at rest over a prolonged time span. Due to this prolonged rest period between individual feeding steps, elastical deformations of working structures and of the workpiece being worked upon, can attenuate and fade out prior to the working proper, and at the same time the length of the advancing is not subjected to a change. Furthermore, any clamping elements for the clamping of the workpiece can be lowered more slowly against the workpiece such that a lower energy of impact is produced. Conclusively, the workpieces are not subjected to a plastic deformation. The apparatus finds application specifically in punch presses.








 
 
  Recently Added Patents
System and method for operating an electric power converter
Eyeglasses
Method and system for providing complete internet anywhere with partial server processing
Method for producing (meth)acrylic anhydride, method for storing (meth)acrylic anhydride, and method for producing (meth)acrylate
Placental tissue grafts
Method of allocating IP address of image forming apparatus using DHCP, image forming apparatus and system of allocating IP address using DHCP
Method and device for generating low-jitter clock
  Randomly Featured Patents
Magnetohydrodynamic turbomachine construction for electric motors and generators
Kneading paddle extraction device
Electrically controlled pressure relief valve and system and method for controlling same
Machine for cutting strand
Process and apparatus for recovering sulphur from a gas stream containing hydrogen sulphide
Bi-frequency symmetrical patch antenna
Random access data storage system
Scheduling cool air jobs in a data center
Turbomachine aerofoil
Discrete starter for HID lamp