Rotary cutting machine capable of adjusting the angle of the tool rest and the squeezing force on the round log

Abstract

The present invention belongs to the technical field of wood processing machinery, and relates to a veneer lathe capable of adjusting the angle of a tool rest and the extrusion force on a round log, which comprises a machine frame, a power device and a control device. A pressure roller seat, a tool rest and a double-roller seat are installed on the machine frame. The pressure roller is installed on the pressure roller seat, the veneer cutting tool is installed on the tool rest, and the double rollers are installed on the double-roller seat. The technical key points are as follows: The tool rest and the pressure roller seat are movably connected to the machine frame. A tool rest cam and a pressure roller seat cam are installed on the machine frame to support the tool rest and the pressure roller seat respectively. Through the movement of the two groups of cams, the tool rest is driven to swing and the pressure roller seat is driven to rotate, so as to make the extrusion force of the pressure roller on the round log stable during the veneer cutting process and the cutting angle of the veneer cutting tool optimized in real time, thereby solving the problems of poor surface smoothness of the veneer, back cracking, curling of the tail board and other defects.

Description

Technical Field

[0001] The present invention belongs to the technical field of wood processing machinery, and relates to a veneer lathe, in particular to a veneer lathe capable of adjusting the angle of the tool rest and the extrusion pressure of the pressure roller on the round wood. Background Art

[0002] The veneer lathe is an important machine in wood processing. During the processing, as the diameter of the round wood becomes smaller, the extrusion pressure of the pressure roller on the round wood will also change. If it cannot be adjusted at any time, the extrusion pressure will be unstable, which easily causes the round wood to jump and makes the mechanical work unstable. Especially at the knot part of the round wood, due to the unstable extrusion pressure, the surface of the cut veneer is uneven, affecting the quality of the veneer. At the same time, the cutting angle of the veneer knife relative to the round wood will also change as the diameter of the round wood becomes smaller. When cutting a veneer with a relatively large thickness, since the difference between the inner radius and the outer radius of the veneer is relatively large, the cut veneer is prone to back cracks, tail board curling and other phenomena. Therefore, during the processing work, when processing different woods and cutting veneers with different thicknesses, it is necessary to adjust the cutting angle of the veneer knife and the extrusion pressure of the pressure roller on the round wood in real time. Usually, it requires professional personnel to conduct long-term debugging on the machine to complete, and it can only be roughly debugged, and the best effect cannot be achieved.

[0003] Patent No. CN201721127747 discloses a cam-controlled constant-pressure veneer lathe, which uses the rotation of the cam to drive the swing of the pressure roller seat. The swing center of the pressure scale roller is above the rear of the tip position, and the trajectory of the pressure scale roller controlled by the cam is roughly parallel to the contour line of the tool back. Therefore, the knife gap remains basically unchanged during the veneer cutting process of adjusting the pressure of the pressure scale roller by the cam. This structure of the veneer lathe can keep the extrusion pressure of the pressure roller on the round wood basically unchanged, and to a certain extent solves the problem of veneer quality defects caused by the unstable pressure of the pressure roller on the round wood. However, when cutting woods with different hardnesses, this machine cannot be automatically adjusted.

[0004] Patent No. CN201821859251 discloses a device for changing the knife gap of a veneer lathe, which uses the movement of the movable crossbeam to drive the cam to rotate through the connecting rod, thereby driving the rotation of the pressure roller seat to realize changing the size of the knife gap of the veneer knife and the extrusion pressure on the round wood. This structure of the veneer lathe solves the problem that the knife gap remains unchanged during the veneer cutting process, and the extrusion pressure on the round wood will also change as the diameter becomes smaller, solving the problem of round wood explosion. The quality of the veneer is good. However, for woods with different hardnesses and different thicknesses, during the veneer cutting process, the magnitude and change amount of the extrusion pressure will also be different, and this technical solution cannot adapt.

[0005] Patent No. CN201210515484.4 discloses a non-card shaft veneer lathe with an adjustable tool rest angle. There is a ram under the tool rest, which is controlled by a handwheel. By manually adjusting the handwheel to drive the ram to move, the angle of the tool rest is changed. The present invention can conveniently adjust the cutting angle of the veneer knife, but cannot be adjusted automatically in real time during the veneer cutting process. At the same time, technicians need to manually adjust for different woods and different veneer cutting thicknesses. Summary of the Invention

[0006] Aiming at the problems of the prior art, the present invention realizes real-time automatic adjustment of the pressure roller and the tool table, so as to achieve stable operation of the veneer lathe, stable extrusion force of the pressure roller on the round log during the veneer cutting process, and real-time optimization of the cutting angle of the veneer knife, thereby solving the problems of poor surface smoothness, back cracking, and curling of the tail board of the veneer.

[0007] The technical content of the present invention is as follows: The present invention includes a frame, a power device and a control device. The power device is a power motor and a power transmission device. The power motor is installed on the frame and is connected to each load through the transmission device. The power transmission device is a reducer, a transmission shaft, a transmission chain or a transmission gear. The control device is a program controller used to control the power device and is installed in the numerical control cabinet. A pressure roller seat, a tool table and a double-roller seat are installed on the frame. The pressure roller is installed on the pressure roller seat, the veneer knife is installed on the tool table, and the double rollers are installed on the double-roller seat. There is a veneer feeding device between the double-roller seat and the pressure roller seat. The veneer feeding device is a lead screw, and the lead screw is connected to the power device. During the veneer cutting process, the rotation of the lead screw drives the pressure roller seat or the double-roller seat to move on the slideway of the frame, and the movement of the lead screw is controlled by a travel switch. The technical key point is that the tool table is movably connected to the frame, and the tool table can swing around the installation axis. A tool table cam is installed on the frame. The tool table cam can be one or more, and is supported on the side of the tool table. The camshaft of the tool table cam is connected to the tool table cam power device. The rotation of the tool table cam drives the tool table to swing. The tool table cam power device consists of a reducer and a tool table cam motor. The camshaft of the tool table cam is connected to the tool table cam motor through the reducer. The tool table cam motor is a servo motor and is connected to the control device.

[0008] The pressure roller seat is movably connected to the frame and can rotate around the installation axis. A pressure roller seat cam is installed on the frame. The pressure roller seat cam can be one or more, and supports the pressure roller seat. The camshaft of the pressure roller seat cam is connected to the pressure roller seat cam power device. The rotation of the pressure roller seat cam drives the pressure roller seat to rotate. The pressure roller seat cam power device consists of a pressure roller seat cam motor and a reducer. The camshaft of the pressure roller seat cam is connected to the pressure roller seat cam motor through the reducer. The pressure roller seat cam motor is a servo motor and is connected to the control device.

[0009] Preferably, the tool table cam is installed on the frame through a bearing seat.

[0010] Preferably, a turret bearing is installed on the turret, and the turret cam is supported on the turret bearing and is in rolling cooperation with the turret bearing.

[0011] Preferably, a support arm is installed on the pressure roller seat and is in cooperation with the pressure roller seat cam. The pressure roller seat cam is supported at one end of the support arm, and the pressure roller seat is supported by the support arm.

[0012] Preferably, a support arm bearing is installed on the support arm, and the pressure roller seat cam is in rolling cooperation with the support arm bearing to support the pressure roller seat.

[0013] Preferably, the pressure roller seat is installed on the frame through the other end of the support arm. The connection between the support arm and the frame is a movable connection, and the pressure roller seat is driven to rotate by the support arm.

[0014] Preferably, fixed supports are installed on the frame. The turret and the pressure roller seat are installed on the fixed supports. There is one fixed support on each side of the frame. There are mounting holes on the fixed supports for installing the turret and the pressure roller seat, and the connection is a movable connection.

[0015] Preferably, the pressure roller seat is installed on the fixed support through the support arm.

[0016] In the present invention, the turret cam and the pressure roller seat cam are both variable cams with equal variables.

[0017] The control device of the present invention includes a program module for controlling a power motor, etc., and also includes a program module for controlling the turret cam power device and the pressure roller seat cam power device.

[0018] Advantages and effects: In the present invention, the turret cam and the pressure roller seat cam are respectively used to support the turret and the pressure roller seat. The independent turret cam power device and pressure roller seat cam power device respectively drive the turret cam and the pressure roller seat cam to rotate. The cam power device and the pressure roller seat cam power device are controlled by the program module of the control device to automatically control the rotation of the pressure roller seat and the swing of the turret, and to automatically adjust the extrusion pressure of the pressure roller on the log and the cutting angle of the rotary cutter in real time, so that the extrusion pressure of the pressure roller remains stable during the rotary cutting process, and the cutting angle of the rotary cutter is automatically adjusted in real time, eliminating phenomena such as poor quality of the veneer, serious back cracks, and curling of the tail board, and enabling thick veneer rotary cutting of logs with relatively high hardness. Description of the Drawings

[0019] Attached Figure 1 is a schematic structural diagram of the present invention.

[0020] Attached Figure 2 is a schematic installation diagram of the pressure roller seat cam of the present invention.

[0021] Attached Figure 3 is a schematic installation diagram of the turret cam of the present invention.

[0022] In the figure: 1. Double-roller seat; 2. Double rollers; 3. Press roller; 4. Press-roller seat; 5. Mounting hole; 6. Support arm; 7. Press-roller seat cam bearing seat; 8. Press-roller seat cam; 9. Tool-block cam; 10. Fixed support; 11. Frame; 12. Rotary cutter; 13. Lead screw; 14. Press-roller seat cam motor; 15. Tool-block cam motor; 16. Tool block; 17. Tool-block cam bearing seat; 18. Power motor; 19. Numerical control cabinet; 20. Travel switch; 21. Tool-block bearing; 22. Support-arm bearing. Detailed implementation mode

[0023] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0024] Embodiment 1 The present invention includes a frame 11, a power device and a control device. The power device is a power motor 18 and a power transmission device. The power motor 18 includes a double-roller motor, a press-roller motor and a lead-screw motor, and is installed on the frame 11. The power transmission device is a speed reducer, a transmission shaft, a transmission chain or a transmission gear, etc. The control device is a program controller, which is installed in the numerical control cabinet 19 to control the power motor 18. The power motor 18 drives the press roller 3, the double rollers 2 and the lead screw 13 through the transmission device. A press-roller seat 4, a tool block 16 and a double-roller seat 1 are installed on the frame 11. The press roller 3 is installed on the press-roller seat 4, the rotary cutter 12 is installed on the tool block 16, and the double rollers 2 are installed on the double-roller seat 1. There are sliders at the bottom of the double-roller seat 1, which cooperate with the slideways on the frame 11. The rotary cutting feed device is a lead screw. By rotating the lead screw 13, the double-roller seat 1 is driven to move to complete the cutting feed. The movement of the lead screw 13 is controlled by the travel switch 20, and the travel switch 20 is connected to the control device. The technical key point is that there are mounting shafts at both ends of the tool block 16, which are installed in the mounting holes at both ends of the frame 11 through shaft sleeves, and are movably connected. The tool block 16 can rotate around the mounting axis, and the mounting axis coincides with the cutting edge of the rotary cutter, so as to ensure that when the tool block 16 rotates, the rotary cutter 12 only changes the cutting angle. Two tool-block cams 9 are installed on the frame 11 at the lower part of the side of the tool block 16. They are equal-variable cams and are coaxially installed. The tool-block cams 9 are installed on the frame 11 through the tool-block cam bearing seats 17 and are connected to the tool-block cam power device through couplings. The tool-block cam power device is composed of a speed reducer and a tool-block cam motor 15. The tool-block cam motor 15 is a servo motor and is connected to the control device. A tool-block bearing 21 is installed on the side of the tool block 16. The tool-block cams 9 are supported on the tool-block bearing 21 and are in rolling cooperation with the tool-block bearing 21. By controlling the forward and reverse rotations and the rotation speed of the tool-block cam motor 15 through the program module of the control device, the rotation and reset of the tool-block cams are realized, thereby driving the tool block 16 to swing reciprocally, so that the cutting angle of the rotary cutter 12 changes automatically in real time during the rotary cutting process to adapt to the change of the diameter of the round log during the rotary cutting process.

[0025] Both ends of the pressure roller seat 4 are provided with mounting shafts, which are installed in the mounting holes at both ends of the frame 11 through bushings, and are movably connected and can rotate around the mounting axis. A pressure roller seat cam 8 is installed on the frame 11 below the pressure roller seat 4, which is an equal-variable cam. There are two support arms 6 on the pressure roller seat 4, located on both sides of the pressure roller seat 4 respectively, and two support arm bearings 22 are installed at one end of each support arm 6. There are four pressure roller seat cams 8, which are coaxially installed and installed on the frame 11 through the pressure roller seat cam bearing seats 7, and are in rolling cooperation with the bearings 22 at one end of the two support arms 6 in pairs to support the pressure roller seat 4. The camshaft of the pressure roller seat cam 8 is connected to the pressure roller seat cam power device through a coupling. The pressure roller seat cam power device is composed of a reducer and a pressure roller seat cam motor 14, and is installed on the frame 11. The pressure roller seat cam motor 14 is a servo motor and is connected to the control device. By controlling the forward and reverse rotation and rotation speed of the pressure roller seat cam motor 14 through the program module of the control device, the rotation and reset of the pressure roller seat cam are realized, thereby driving the pressure roller seat to rotate reciprocally around the mounting axis, so that during the rotary cutting process, as the diameter of the log changes, the extrusion pressure on the log is kept stable.

[0026] Embodiment 2 The present invention includes a frame 11, a power device and a control device. The power device is a power motor 18 and a power transmission device. The power motor 18 includes a double-roller motor, a pressure roller motor and a lead screw motor, and is installed on the frame 11. The power transmission device is a reducer, a transmission shaft, a transmission chain or a transmission gear, etc. The control device is a program controller, which is installed in the numerical control cabinet 19 to control the power motor 18. The power motor 18 drives the pressure roller 3, the double roller 2 and the lead screw 13 through the transmission device. A pressure roller seat 4, a tool rest 16 and a double-roller seat 1 are installed on the frame 11. The pressure roller 3 is installed on the pressure roller seat 4, and the rotary cutting tool 12 is installed on the tool rest 16. The double roller 2 is installed on the double-roller seat 1. There is a slider at the bottom of the double-roller seat 1, which is matched with the slideway on the frame 11. The rotary cutting feed device is a lead screw 13. By rotating the lead screw 13, the double-roller seat 1 is driven to move to complete the cutting feed. The movement of the lead screw 13 is controlled by a travel switch 20, and the travel switch 20 is connected to the control device. The technical key point is that a fixed support 10 is installed on the frame 11. The fixed support 10 is provided with a mounting hole 5, which is located on both sides of the frame 11, and there is one each. The tool rest 16 is provided with a mounting shaft and is installed in the mounting hole 5 of the fixed support 10 through a bushing, so as to install the tool rest 16 on the fixed support 10. The tool rest 16 can rotate around the mounting axis, and the mounting axis of the tool rest 16 coincides with the cutting edge of the rotary cutting tool, so as to ensure that when the tool rest 16 rotates, the rotary cutting tool 12 only changes the cutting angle.

[0027] On the side of the tool rest 16, two tool rest bearings 21 are installed. On the frame 11 below the tool rest 16, two tool rest cams 9 are installed. They are equi-variable cams, coaxially installed, and supported by the tool rest bearings 21 on the side of the tool rest 16. The tool rest cam 9 and the tool rest bearing 21 are in rolling fit. The tool rest cam 9 is installed on the frame 11 through the tool rest cam bearing seat 17. The camshaft of the tool rest cam 9 is connected to the tool rest cam power device by a coupling. The tool rest cam power device consists of a reducer and a tool rest cam motor 15, and is installed on the frame 11. The tool rest cam motor 15 is a servo motor and is connected to the control device. By controlling the forward and reverse rotation and rotation speed of the tool rest cam motor 15 through the program module of the control device, the rotation and reset of the tool rest cam are realized, thereby driving the tool rest 16 to swing reciprocally, so that the cutting angle of the rotary cutter during the rotary cutting process changes in real time to adapt to the change of the diameter of the round wood during the rotary cutting process.

[0028] There are two arms 6 on the pressure roller seat 4, located on both sides of the pressure roller seat 4 respectively. One end of the arm 6 has a mounting shaft, which is connected to the mounting hole 5 of the fixed support 10 through a bushing, thereby installing the pressure roller seat 4 on the fixed support 10. At the other end of the arm 6, there are arm bearings 22 respectively. On the frame 11 below the pressure roller seat 4, pressure roller seat cams 8 are installed. They are equi-variable cams. There are two pressure roller seat cams 8, coaxially installed, and installed on the frame 11 through the pressure roller seat cam bearing seat 7. The pressure roller seat cam 8 and the arm bearing 22 are in rolling fit to support the pressure roller seat 4. The camshaft of the pressure roller seat cam 8 is connected to the pressure roller seat cam power device by a coupling. The pressure roller seat cam power device consists of a reducer and a pressure roller seat cam motor 14, and is installed on the frame 11. The pressure roller seat cam motor 14 is a servo motor and is connected to the control device. By controlling the forward and reverse rotation and rotation speed of the pressure roller seat cam motor 14 through the program module of the control device, the rotation and reset of the pressure roller seat cam are realized, thereby driving the pressure roller seat to rotate reciprocally around the mounting axis, so that during the rotary cutting process, as the diameter of the round wood changes, the extrusion pressure on the round wood is kept stable.

[0029] Embodiment 3. The present invention includes a frame 11, a power device and a control device. The power device is a power motor 18 and a power transmission device. The power motor 18 includes a double-roller motor, a pressure-roller motor and a lead-screw motor, which are installed on the frame 11. The power transmission device is a speed reducer, a transmission shaft, a transmission chain or a transmission gear, etc. The control device is a program controller, which is installed in the numerical control cabinet 19 to control the power motor 18. The power motor 18 drives the pressure roller 3, the double rollers 2 and the lead screw 13 through the transmission device. A pressure-roller seat 4, a tool rest 16 and a double-roller seat 1 are installed on the frame 11. The pressure roller 3 is installed on the pressure-roller seat 4, the rotary cutting tool 12 is installed on the tool rest 16, and the double rollers 2 are installed on the double-roller seat 1. The technical key point is that fixed supports 10 are installed on the frame 11. The fixed supports 10 are provided with mounting holes 5 and are located on both sides of the frame 11, with one on each side. Both ends of the tool rest 16 are provided with mounting shafts, which are installed in the mounting holes 5 of the fixed supports 10 through bearings, thereby installing the tool rest 16 on the fixed supports 10. The tool rest 16 can rotate around the mounting axis, and the mounting axis of the tool rest 16 coincides with the cutting edge of the rotary cutting tool, so as to ensure that when the tool rest 16 rotates, the rotary cutting tool 12 only changes the cutting angle.

[0030] Tool rest bearings 21 are installed on the side of the tool rest 16. Two tool rest cams 9, which are equal-variable cams, are installed on the fixed supports 10 at the lower part of the side of the tool rest. They are coaxially installed and supported on the tool rest bearings 21 on the side of the tool rest 16. The tool rest cams 9 and the tool rest bearings 21 are in rolling fit. The tool rest cams 9 are installed on the fixed supports 10 through tool rest cam bearing seats 17. The camshafts of the tool rest cams 9 are connected to the tool rest cam power device through couplings. The tool rest cam power device consists of a speed reducer and a tool rest cam motor 15, which are installed on the fixed supports 10. The tool rest cam motor 15 is a servo motor and is connected to the control device. By controlling the forward and reverse rotations and the rotation speed of the tool rest cam motor 15 through the program module of the control device, the rotation and reset of the tool rest cams 9 are realized, thereby driving the tool rest 16 to swing reciprocally, so that the cutting angle of the rotary cutting tool changes in real time during the rotary cutting process to adapt to the change in the diameter of the log during the rotary cutting process.

[0031] There are two arms 6 on the pressure roller seat 4, located on both sides of the pressure roller seat 4 respectively. One end of each arm 6 has a mounting shaft, which is installed in the mounting hole of the fixed support 10 through a bushing, thereby mounting the pressure roller seat 4 on the fixed support 10. Each of the other ends of the arms 6 has two arm bearings 22. A pressure roller seat cam 8 is installed on the fixed support 10 at the lower part of the pressure roller seat 4. The pressure roller seat cam 8 is an equal-variable cam. There are four pressure roller seat cams 8, which are coaxially installed and mounted on the fixed support 10 through the pressure roller seat cam bearing seats 7. They are in rolling cooperation with the arm bearings 22 in pairs to support the pressure roller seat 4. The camshaft of the pressure roller seat cam 8 is connected to the pressure roller seat cam power device through a coupling. The pressure roller seat cam power device consists of a reducer and a pressure roller seat cam motor 14, and is installed on the fixed support 10. The pressure roller seat cam motor 14 is a servo motor, and the pressure roller seat cam motor 14 is connected to the control device. By controlling the forward, reverse rotation and rotation speed of the pressure roller seat cam motor 14 through the program module of the control device, the rotation and reset of the pressure roller seat cam are realized, thereby driving the pressure roller seat to rotate reciprocally around the installation axis, so that during the rotary cutting process, as the diameter of the round log changes, the extrusion pressure on the round log is kept stable.

[0032] There are sliders at the bottom of the fixed support 10, which cooperate with the slideways on the frame 1. The rotary cutting feed device is a lead screw 13, which is installed between the fixed support 10 and the double-roller seat 1. By rotating the lead screw 13, the fixed support 10 is driven to move to complete the cutting feed. The movement of the lead screw 13 is controlled by a travel switch 20, and the travel switch 20 is connected to the control device.

[0033] The above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And these obvious changes or variations derived from the spirit of the present invention are still within the protection scope of the present invention.

Claims

1. A veneer lathe capable of adjusting the angle of the tool rest and the squeezing force on the round log, comprising a frame (11), a power device and a control device. A pressure roller seat (4), a tool rest (16), and a double-roller seat (1) are installed on the frame (11). A pressure roller (3) is installed on the pressure roller seat (4), a veneer cutting tool (12) is installed on the tool rest (16), and double rollers (2) are installed on the double-roller seat (1). It is characterized in that: The tool rest (16) is movably connected to the frame (11). A tool rest cam (9) is installed on the frame (11), and the tool rest cam (9) supports on the side of the tool rest (16). The tool rest cam (9) is connected to a tool rest cam power device, and the tool rest cam power device is installed on the frame (11) and connected to the control device. A tool rest bearing (21) is installed on the tool rest (16), and the tool rest cam (9) supports on the tool rest bearing (21) and is in rolling fit with the tool rest bearing (21). The tool rest cam (9) is installed on the frame (11) through a tool rest cam bearing seat (17) and is connected to the tool rest cam power device through a coupling. The tool rest cam power device consists of a reducer and a tool rest cam motor (15). The tool rest cam motor (15) is a servo motor and is connected to the control device. The program module of the control device controls the forward and reverse rotations and the rotation speed of the tool rest cam motor (15) to realize the rotation and reset of the tool rest cam, thereby driving the tool rest (16) to swing reciprocally and enabling the cutting angle of the veneer cutting tool (12) to change automatically in real time during the veneer cutting process; The pressure roller seat (4) is movably connected to the frame (11). A pressure roller seat cam (8) is installed on the frame (11) to support the pressure roller seat (4). The camshaft of the pressure roller seat cam (8) is connected to a pressure roller seat cam power device, and the pressure roller seat cam power device is installed on the frame (11) and connected to the control device. There is a support arm (6) on the pressure roller seat (4), and the pressure roller seat cam (8) supports at one end of the support arm (6). The camshaft of the pressure roller seat cam (8) is connected to the pressure roller seat cam power device through a coupling. The pressure roller seat cam power device consists of a reducer and a pressure roller seat cam motor (14). The pressure roller seat cam motor (14) is a servo motor and is connected to the control device. The program module of the control device controls the forward and reverse rotations and the rotation speed of the pressure roller seat cam motor (14) to realize the rotation and reset of the pressure roller seat cam, thereby driving the pressure roller seat to rotate reciprocally around the installation axis and enabling the pressure on the round log to remain stable during the veneer cutting process as the diameter of the round log changes.

2. The veneer lathe capable of adjusting the angle of the tool rest and the squeezing force on the round log according to claim 1, It is characterized in that: A support arm bearing (22) is installed on the support arm (6), and the pressure roller seat cam (8) supports the pressure roller seat (4) in a rolling fit manner with the support arm bearing (22).

3. The veneer lathe capable of adjusting the angle of the tool rest and the squeezing force on the round log according to claim 2, It is characterized in that: The pressure roller seat (4) is installed on the frame (11) through the support arm (6), and the connection between the support arm (6) and the frame (11) is a movable connection.

4. The veneer lathe capable of adjusting the angle of the tool rest and the squeezing force on the round log according to claim 1 or 2 or 3, It is characterized in that: A fixed support (10) is installed on the frame (11), and a tool rest (16) and a pressure roller seat (4) are installed on the fixed support (10).

5. A veneer lathe capable of adjusting the angle of the tool rest and the squeezing force of the round log according to claim 4, characterized in that: A tool rest cam (9), a pressure roller seat cam (8), a tool rest cam power device and a pressure roller seat cam power device are all installed on the fixed support (10).

6. A veneer lathe capable of adjusting the angle of the tool rest and the squeezing force of the round log according to claim 5, characterized in that: Both the tool rest cam (9) and the pressure roller seat cam (8) are equal variable cams.

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