3.3 pressure roller
The pressure roller, which is a rotary cutting auxiliary function, is an indispensable component in the rotary cutting machine produced by the conventional rotary cutting machine manufacturer. Its form, length, and driving method are different;
3.3.1 Long pressure roller
Full-length press rolls; new rotary cutters are equipped with press rolls of the same length as the wood sections to prevent bending of the wood sections during the rotary cutting. The biggest disadvantage of the conventional rotary cutter is that the pressure roller is not long enough to prevent the bending of the entire rotary cutting section in the longitudinal direction. Once the wood segment is bent, the thickness of the veneer will be uneven (generating the lip) and the acceleration will cause the wood segment to break and the wood core to be broken.
3.3.2 drive roller
In order to reduce the torque of the small-clip shaft drive when the small-diameter wood section is cut, the screw core is broken, the driving force of the wood section is increased, and the belt driven roller is born. It is not enough for large-diameter logs to drive the press rolls, but it has a lot of work for medium and small-diameter logs. At the same time, driving the press rolls can improve the precision and cutting speed of the rotary-cut veneers.
3.4 pressure ruler
Many domestic plywood manufacturers do not use pressure rollers during production, but they must use a pressure gauge. It seems that there is sufficient experience in the adjustment of the pressing force of different materials, but sometimes it still does not achieve satisfactory results;
3.4.1 Drive pressure gauge
The driving pressure gauge is not yet familiar to many people, but its advantages are obvious: (1) The cardless shaft rotary cutting machine has been familiar to everyone since its birth, and has also played its unique role. The shortcomings are also well known: the thickness of the veneer is large from the tolerance and the back crack, and only the core plate of the thick plywood can be made, and the yield is low. It is not difficult to find from Fig. 2; the driving roller and the driving pressure gauge are the same as the three driving rollers of the non-card shaft rotary cutter when the small diameter is rotated. In addition, the small card shaft core and drive ensure the cutting speed, the thickness accuracy of the veneer, reduce the back plate crack, and reduce the diameter of the wood core.
(2) The purpose of the veneer softening device is to give the front surface of the veneer an external stress similar to the back surface, and to obtain the relative balance of the stress on the back surface of the veneer to reduce the curling deformation of the unwound veneer. The outer surface of the driving roller is also a certain pressing force on the front side of the veneer, achieving a similar effect. (3) From the force analysis, the driving pressure gauge not only reduces the pressing resistance of the strip pressure gauge, but also relatively balances the rotation force of the wood section.
(4) The rolling pressure gauge greatly reduces the blockage of the knife door.
3.5 tool holder;
The new rotary cutter holder has a longer and higher strength than the conventional rotary cutter. These components are the components that are loaded and stressed during the rotary cutting process. In addition: the force frame feed adopts the planetary screw instead of the ball screw, and its strength is 3 times larger than that of the ball screw, which can ensure no looseness during the rotary cutting. Robust and robust construction ensures veneer thickness tolerances.
The pressure roller, which is a rotary cutting auxiliary function, is an indispensable component in the rotary cutting machine produced by the conventional rotary cutting machine manufacturer. Its form, length, and driving method are different;
3.3.1 Long pressure roller
Full-length press rolls; new rotary cutters are equipped with press rolls of the same length as the wood sections to prevent bending of the wood sections during the rotary cutting. The biggest disadvantage of the conventional rotary cutter is that the pressure roller is not long enough to prevent the bending of the entire rotary cutting section in the longitudinal direction. Once the wood segment is bent, the thickness of the veneer will be uneven (generating the lip) and the acceleration will cause the wood segment to break and the wood core to be broken.
3.3.2 drive roller
In order to reduce the torque of the small-clip shaft drive when the small-diameter wood section is cut, the screw core is broken, the driving force of the wood section is increased, and the belt driven roller is born. It is not enough for large-diameter logs to drive the press rolls, but it has a lot of work for medium and small-diameter logs. At the same time, driving the press rolls can improve the precision and cutting speed of the rotary-cut veneers.
3.4 pressure ruler
Many domestic plywood manufacturers do not use pressure rollers during production, but they must use a pressure gauge. It seems that there is sufficient experience in the adjustment of the pressing force of different materials, but sometimes it still does not achieve satisfactory results;
3.4.1 Drive pressure gauge
The driving pressure gauge is not yet familiar to many people, but its advantages are obvious: (1) The cardless shaft rotary cutting machine has been familiar to everyone since its birth, and has also played its unique role. The shortcomings are also well known: the thickness of the veneer is large from the tolerance and the back crack, and only the core plate of the thick plywood can be made, and the yield is low. It is not difficult to find from Fig. 2; the driving roller and the driving pressure gauge are the same as the three driving rollers of the non-card shaft rotary cutter when the small diameter is rotated. In addition, the small card shaft core and drive ensure the cutting speed, the thickness accuracy of the veneer, reduce the back plate crack, and reduce the diameter of the wood core.
(2) The purpose of the veneer softening device is to give the front surface of the veneer an external stress similar to the back surface, and to obtain the relative balance of the stress on the back surface of the veneer to reduce the curling deformation of the unwound veneer. The outer surface of the driving roller is also a certain pressing force on the front side of the veneer, achieving a similar effect. (3) From the force analysis, the driving pressure gauge not only reduces the pressing resistance of the strip pressure gauge, but also relatively balances the rotation force of the wood section.
(4) The rolling pressure gauge greatly reduces the blockage of the knife door.
3.5 tool holder;
The new rotary cutter holder has a longer and higher strength than the conventional rotary cutter. These components are the components that are loaded and stressed during the rotary cutting process. In addition: the force frame feed adopts the planetary screw instead of the ball screw, and its strength is 3 times larger than that of the ball screw, which can ensure no looseness during the rotary cutting. Robust and robust construction ensures veneer thickness tolerances.
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