Claims
- 1. A bending machine comprising:a frame having a main side; a bending head in said main side and including three bender rollers, two rollers of said three bender rollers having fixed axes of rotation, one roller of said three bender rollers having a vertically displaceable axis of rotation and being mounted on a slider which is movable along a vertical rectilinear guide; a motor and reduction gear unit driving one or more of said bender rollers; thrust rolls; a work surface above said bending head; and a reduction gear mounted on said work surface and having means for mechanical connection to said slider for moving said slider vertically along said guide.
- 2. A bending machine comprising:a frame having a main side; a bending head in said main side and including three bender rollers, two rollers of said three bender rollers having fixed axes of rotation, one roller of said three bender rollers having a vertically displaceable axis of rotation and being mounted on a slider which is movable along a vertical, rectilinear guide; a motor and reduction gear unit driving one or more of said bender rollers; thrust rolls; a work surface above said bending head; and a reduction gear mounted on said work surface and having means for mechanical connection to said slider for moving said slider vertically alone said guide, wherein said motor and reduction gear unit drives the two fixed bender rollers by meshing a toothed wheel with two toothed wheels integral in rotation with axes of the fixed bender rollers, one of said toothed wheels being integral in rotation with the axes of the fixed bender rollers and being provided with a clutch means for connecting said one wheel to one end of a first transmission shaft, said first transmission shaft having near its other end sustained by a removable support to said frame, a toothed wheel meshing with another toothed wheel, whose spindle is mounted on a support removably connected to said frame and connected by a universal joint to a second transmission shaft, and said second transmission shaft being connected with a universal joint to another spindle integral in rotation with said third bender roller, in order to transmit the rotary movement from said motor and reduction gear unit to the third bender roller.
- 3. The bending machine as claimed in claim 2, wherein said supports and said frame have corresponding through holes, and said transmission shaft and said spindle of the other toothed wheel are extended in said through holes to serve as drives of rotary movement for the tools.
- 4. The bending machine as claimed in claim 1, further comprising means for detecting a position of said supporting slider of the third bender roller along its guide in the bending head.
- 5. The bending machine of claim 4, further comprising a control unit connected to said slider and said motor and reduction gear unit and a control switchboard and comprising an electronic control card, including means for coding a position along an axis, means for entering commands and means for storing a bending program.
Priority Claims (1)
Number |
Date |
Country |
Kind |
RM97A0310 |
May 1997 |
IT |
|
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a division of application Ser. No. 09/080,295, filed May 18, 1998, now U.S. Pat. No. 5,970,770.
US Referenced Citations (9)