China Plate Leveling Machine

Main structure:
Include machine frame, straightening rollers, walking beam, screwdown device, displacement measurement device, main transmission device, lubrication system, electrical system and so on
1. Machine frame
The machine frame is welding structure and process annealing to remove the internal stress after welding,(annealing time is more than 8hours, and annealing temperature is 650~800ºC).
Machine frame processing: CNC blanking of steel plate→chamfering for plate parts→welding→annealing→CNC boring.
2. Walking beam
The walking beam is steel plate welding structure and process annealing to remove the internal stress after welding.
3. Screwdown device
Include the motors, the worm gear reducer, screw rod and nut. The motor drive the worm gear to make the top rollers lifting.
The relative position between the top and bottom rollers can be adjusted freely for the different plate thickness ,the postion of the top rollers can be displayed on the operation station.

4. Straightening rollers
Totally include 11 pieces of straightening rollers ,and all the straightening rollers are driving rollers. There the backup rollers fixed on the base and the walking beam. The material of the backup rollers is GCr15 with hardness HRC50~58.
The straightening roller is the key components of the machine,which material is 42CrMo, the hardness is HRC58~64 after surface hardening. The machining process of the straightening rollers:forging→rough turning→thermal refine→finish turning→surface hardending→straightening→finish grinding toh6.
5.Main driving
The top and bottom rollers are all driving rollers, which are driven through the motors , the reducers, the transfer box, the universal coupling.
6.Machine base
The base is steel plate welded structure, and process the annealing after welding..
7.Lubrication
Manual oil pump lubrication is adopted for the machine, each rotating parts of the top and bottom rollers can be lubricated.
8. Displacement displaying device
Several sets of differential displacement sensor are adopted to measure the opening size at the both end,and the measured data is displayed by the digital readout device.
9.Electrical system
The electrical system of the machine includes the control cabinet and so on. Four scram buttons are installed the four uprights, there are the limitation switches for the up down movement to protect the electrical effectively, The overcurrent and overvoltage protection are used for the electrical system. The electrical elements are Omron or Seimens products.
10.Roller conveyor: the length of the conveyor is 2m at both side(non-power)