Knife rest body, knife relief angle adjusting device and rotary cutter

Abstract

The utility model discloses a knife rest body which comprises a knife rest body, a blade is arranged at the upper end of the knife rest body, and the knife rest body is characterized in that the lower end of the knife rest body is provided with an arc-shaped rack of which the angle can be freely adjusted, the arc-shaped rack is positioned at the other end of the blade, and the upper end surface of the arc-shaped rack is fixedly connected with the bottom surface of the knife rest body. The cutter relief angle adjusting device is characterized by comprising the cutter rest body, the rotating gear, a support, a servo driving device and a rotary cutter, and is characterized by further comprising the cutter relief angle adjusting device, the cutter rest body, the rotating gear, the support and the servo driving device are arranged on the cutter rest body, and teeth meshed with the rotating gear are arranged on the lower end face of the cutter relief angle adjusting device. According to the utility model, the function of randomly adjusting the cutter relief angle according to the thickness requirement of the veneer during the rotary cutting period is realized, and the veneer rotary cutting device has the advantages of high veneer rotary cutting quality, low veneer rejection rate, high working efficiency, wide adjusting range of the cutter relief angle and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of log peeling equipment, and in particular to a knife frame body (1), a knife back angle adjustment device and a peeling machine. Background Art

[0002] As is known to all, the existing back angle device of the rotary cutting machine comprises a knife box, a rotary knife, a knife pressing plate, a knife pressing cylinder, a support shaft (7), a rotating support shaft (7), a knife holder driving device and a tilt adjustment device, wherein the two ends of the lower part of the knife holder body (1) are respectively hinged to the auxiliary slide seat via the support shaft (7), the left end of the upper part is hinged to the left slide seat via the rotating support shaft (7), and the right end is hinged to the right slide seat via the rotating support shaft (7), the front side of the knife holder body (1) is provided with a knife box, the knife box is provided with a rotary knife, and the knife box is fixed via the knife pressing plate fixed to the knife holder body (1), the front end of the lower part of the auxiliary guide rail is connected to the tilt adjustment device fixed to the machine base (8), and the rear end is hinged to the machine base (8). The upper end is slidably connected to the auxiliary slide through an inclined surface, the middle part of the knife pressing plate is connected to the pressure ruler frame (9), the upper part is in conflict with the knife box, and the lower part is in conflict with the knife pressing cylinder fixed on the pressure ruler frame (9), the knife pressing cylinder is connected to the frequency conversion control system through a hydraulic solenoid valve and a hydraulic pump, the inclination direction of the auxiliary guide rail is opposite to the inclination direction of the left inclined guide rail and the right inclined guide rail, the inclination adjustment device is composed of a support (5), an adjusting bolt and a positioning nut, one side of the support (5) is fixedly connected to the machine base (8), the upper end of the adjusting bolt is in conflict with the auxiliary guide rail after being threadedly connected to the threaded hole provided on the support (5), and is fixed to the support (5) through the positioning nut. When adjusting the back angle of the knife, the inclination adjustment device is manually adjusted to make the auxiliary guide rail reach the required inclination, and the log is clamped on the clamping claws at both ends of the knife frame body (1) between the single drive roller (11) and the double drive roller (13); the PLC instructs the knife frame servo controller to operate, driving the knife frame servo motor to operate at the same time, driving the driving screw to rotate, so that the nut on the driving screw in the left slide drives the left slide to move forward along the left horizontal guide rail, and the nut on the driving screw in the right slide drives the right slide to move forward along the right horizontal guide rail, and the left slide and the right slide drive the knife frame body (1 ) gradually approaches the log, and at the same time, the auxiliary slide at the lower end of the tool holder body (1) moves forward along the inclined surface of the auxiliary guide rail, causing the tool holder body (1) to gradually rotate, and the tool holder body (1) moves along the inclined surface of the auxiliary guide rail, so that the rotary cutter on the tool holder body (1) gradually changes the knife back angle with the center of the log as the center. The substantial disadvantage of this structure is that after the knife back angle is set to a certain value, the inclined surface provided on the auxiliary guide rail cooperates to realize the rotary cutting of the log into veneers of the same thickness, and the knife back angle cannot be arbitrarily adjusted during the rotary cutting according to needs to realize rotary cutting of different thicknesses. Summary of the invention

[0003] The utility model aims to solve the deficiencies of the prior art and to provide a tool holder body (1), a tool back angle adjustment device and a peeling machine which can adjust the back angle of a blade as required during peeling to achieve arbitrary adjustment of the thickness of a veneer during peeling.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A tool holder body (1) comprises a tool holder body (1), a blade (2) being mounted on the upper end of the tool holder body (1), and is characterized in that an arc-shaped rack (3) whose angle can be adjusted arbitrarily is disposed on the lower end of the tool holder body (1), the arc-shaped rack (3) being located at the other end where the blade (2) is mounted, the upper end surface of the arc-shaped rack (3) being fixedly connected to the bottom surface of the tool holder body (1), and the lower end surface being provided with teeth meshing with a rotating gear (4).

[0006] A tool back angle adjustment device, characterized in that it comprises a tool holder body (1), a rotating gear (4), a support (5) and a servo drive device (6) as described above, wherein the two ends of the lower part of the tool holder body (1) are respectively meshed with the rotating gear (4) through the teeth of the arc-shaped rack (3), and the two ends of the upper part are respectively rotatably connected to the machine base (8) through a rotating support shaft (7), the rotating gear (4) is connected to the support shaft (7) through a bearing, the rotating gear (4) is driven by the servo drive device (6), the servo drive device (6) is controlled by a PLC control device, the two ends of the support shaft (7) are connected to the support (5), and the support (5) is fixed on the machine base (8), so as to facilitate the control of the servo drive device (6) by the PLC control device to drive the rotating gear (4) to rotate, and the rotating gear (4) rotates to drive the arc-shaped rack (3) to drive the tool holder body (1) to rotate at any angle with the axis of the rotating support shaft (7) as the center, so as to achieve the effect of being able to arbitrarily adjust the tool back angle according to the thickness of the single board.

[0007] The axis center of the arcuate surface of the teeth on the outer surface of the arcuate rack of the utility model and the axis center of the rotary support shaft (7) are on the same axis center.

[0008] The servo drive device (6) of the utility model can be arranged on a machine base (8), and the servo drive device (6) comprises a servo drive motor (6-1), a transmission gear (6-2), and a synchronization shaft (6-3); the synchronization shaft (6-3) is connected to the machine base (8) via a bearing; the synchronization shaft (6-3) is driven by the servo drive motor (6-1); the transmission gear (6-2) is driven to rotate via the synchronization shaft (6-3); and the transmission gear (6-2) is meshed with a rotating gear (4).

[0009] A peeling machine comprises a machine base (8), a knife frame body (1), a pressure ruler frame (9), a knife door servo motor (10), a single drive roller (11), a single roller motor (12), a double drive roller (13), a double roller frame (14), a double roller motor (15), a knife door adjustment device and a PLC control device, characterized in that it also includes the knife back angle adjustment device as described above, the lower end of the double roller frame (14) is slidably connected to a slide rail fixed to the machine base (8) via a slide seat, a moving drive device is provided between the slide rail and the slide seat, the moving drive device is controlled by the PLC control device, and the double roller frame (14) is driven by the moving drive device to move forward and backward along the slide rail to achieve clamping and peeling of logs.

[0010] The utility model adopts the structure to realize the function of adjusting the back angle of the knife according to the thickness of the veneer during peeling, and has the advantages of high veneer peeling quality, high work efficiency, wide adjustment range of the back angle of the knife, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of a tool holder body of the utility model.

[0012] Figure 2 yes Figure 1 Right view of .

[0013] Figure 3 It is a structural schematic diagram of a knife back angle adjustment device of the utility model.

[0014] Figure 4 yes Figure 3 Top view of the .

[0015] Figure 5 yes Figure 3 Left view of .

[0016] Figure 6 It is a structural schematic diagram of the utility model rotary cutting machine.

[0017] Figure 7 yes Figure 6 Top view of the .

[0018] Figure 8 yes Figure 6 Left view of .

[0019] Figure numerals: tool holder body (1), blade (2), arc-shaped rack (3), rotating gear (4), support (5), servo drive device (6), support shaft (7), machine base (8), pressure ruler frame (9), tool door servo motor (10), single drive roller (11), single roller motor (12), double drive roller (13), double roller frame (14), double roller motor (15). DETAILED DESCRIPTION

[0020] The utility model is described below in conjunction with the accompanying drawings and embodiments.

[0021] As attached Figure 1 , 2 As shown, a tool holder body comprises a tool holder body (1), a blade (2) is mounted on the upper end of the tool holder body (1), and is characterized in that an arc-shaped rack (3) whose angle can be adjusted arbitrarily is disposed on the lower end of the tool holder body (1), the arc-shaped rack (3) is located at the other end where the blade (2) is mounted, the upper end surface of the arc-shaped rack (3) is fixedly connected to the bottom surface of the tool holder body (1), and the lower end surface is provided with teeth meshing with a rotating gear (4).

[0022] As attached Figure 3 , 4 As shown in , 5, a tool back angle adjustment device, characterized in that it includes the tool holder body (1), rotating gear (4), support (5) and servo drive device (6) as described above, the lower two ends of the tool holder body (1) are respectively meshed with the rotating gear (4) through the teeth of the arc-shaped rack (3), and the upper two ends are respectively rotatably connected to the machine base (8) through the rotating support shaft (7), the rotating gear (4) is connected to the support shaft (7) through a bearing, the rotating gear (4) is driven by the servo drive device (6), the servo drive device (6) is controlled by a PLC control device, the two ends of the support shaft (7) are connected to the support (5), and the support (5) is fixed on the machine base (8) to facilitate the control of the servo drive device (6) by the PLC control device to drive the rotating gear (4) to rotate, and the rotating gear (4) rotates to drive the arc-shaped rack (3) to drive the tool holder body (1) to rotate at any angle with the axis of the rotating support shaft (7) as the center, so as to achieve the effect of being able to arbitrarily adjust the tool back angle according to the thickness of the single board.

[0023] The axis center of the arcuate surface of the teeth on the outer surface of the arcuate rack of the utility model and the axis center of the rotary support shaft (7) are on the same axis center.

[0024] The servo drive device (6) of the utility model can be arranged on a machine base (8), and the servo drive device (6) comprises a servo drive motor (6-1), a transmission gear (6-2), and a synchronization shaft (6-3); the synchronization shaft (6-3) is connected to the machine base (8) via a bearing; the synchronization shaft (6-3) is driven by the servo drive motor (6-1); the transmission gear (6-2) is driven to rotate via the synchronization shaft (6-3); and the transmission gear (6-2) is meshed with a rotating gear (4).

[0025] As attached Figure 6 , 7As shown in 8, a peeling machine comprises a machine base (8), a knife frame body (1), a pressure ruler frame (9), a knife door servo motor (10), a single drive roller (11), a single roller motor (12), a double drive roller (13), a double roller frame (14), a double roller motor (15) and a PLC control device. The connection structure of the knife frame body (1), the pressure ruler frame (9), the knife door servo motor (10), the single drive roller (11), and the single roller motor (12) and the connection structure of the double drive roller (13), the double roller frame (14), and the double roller motor (15) are the same as those in the prior art and are not described in detail. The machine is characterized in that it also includes the knife back angle adjustment device as described above, the lower end of the double roller frame (14) is slidably connected to a slide rail fixed to the machine base (8) via a slide seat, a moving drive device is provided between the slide rail and the slide seat, the moving drive device is controlled by the PLC control device, and the double roller frame (14) is driven by the moving drive device to move forward and backward along the slide rail to achieve clamping and peeling of logs.

[0026] The mobile driving device of the utility model can adopt a structure combining a lead screw, a nut and a mobile servo motor, or a structure driven by an oil cylinder. The structure of the mobile driving device is prior art and will not be described in detail here.

[0027] When peeling a veneer, the PLC control device instructs the moving drive device to operate, driving the double roller frame (14) to move along the slide rail, so that the double drive roller (13) and the single drive roller (11) clamp the log. At the same time, the PLC control device instructs the single roller motor (12) and the double roller motor (15) to operate, driving the log to rotate for clamping and peeling. During the peeling process, the operator can click on the automatic peeling module on the touch screen of the PLC control device, and the equipment will automatically peel according to the program in the PLC control device. When the thickness of the log needs to be adjusted, the operator can click on the knife back angle adjustment module on the touch screen of the PLC control device to adjust the angle value of the knife back angle adjustment module. The servo drive motor (6-1) receives the instruction of the PLC control device to rotate, and the servo drive The motor (6-1) drives the rotating gear (4) to rotate via the transmission gear (6-2) on the synchronous shaft (6-3), and the rotating gear (4) drives the arc-shaped rack (3) to rotate. The arc-shaped rack (3) drives the tool holder body (1) to rotate around the axis of the rotary support shaft (7). After the angle of the blade (2) at the upper end of the tool holder body (1) changes to a set value, the PLC control device instructs the servo drive motor (6-1) to stop. At this time, the peeling thickness of the veneer changes, and the peeling machine peels at the changed peeling thickness. When the thickness of the veneer reaches the set length, the operator can continue to adjust the angle of the blade back angle on the touch screen in the same way as above, and repeat this process. The utility model realizes the function of arbitrarily adjusting the blade back angle according to the thickness of the veneer during peeling.

[0028] The utility model has the advantages of high single plate peeling quality, high working efficiency, wide adjustment range of knife back angle, etc. due to the adoption of the structure.

Claims

1. A tool holder body, comprising a tool holder body (1), a blade (2) being mounted on the upper end of the tool holder body (1), characterized in that The lower end of the tool holder body (1) is provided with an arc-shaped rack (3) whose angle can be adjusted at will. The arc-shaped rack (3) is located at the other end where the blade (2) is installed. The upper end surface of the arc-shaped rack (3) is fixedly connected to the bottom surface of the tool holder body (1), and the lower end surface is provided with teeth that mesh with the rotating gear (4).

2. A back angle adjustment device, characterized in that It comprises a tool holder body (1), a rotating gear (4), a support (5) and a servo drive device (6) as claimed in claim 1, wherein the two ends of the lower part of the tool holder body (1) are respectively meshed with the rotating gear (4) via the teeth of the arc-shaped rack (3), and the two ends of the upper part are respectively rotatably connected to the machine base (8) via a rotary support shaft (7), the rotating gear (4) is connected to the support shaft (7) via a bearing, the rotating gear (4) is driven by the servo drive device (6), and the servo drive device (6) is controlled by a PLC control device, the two ends of the support shaft (7) are connected to the support (5), and the support (5) is fixed on the machine base (8).

3. The back angle adjustment device according to claim 2, characterized in that The axis center of the arcuate surface of the teeth on the outer surface of the arcuate rack and the axis center of the rotary support shaft (7) are on the same axis center.

4. A back angle adjustment device according to claim 2 or 3, characterized in that The servo drive device (6) is arranged on a machine base (8), and comprises a servo drive motor (6-1), a transmission gear (6-2), and a synchronization shaft (6-3); the synchronization shaft (6-3) is connected to the machine base (8) via a bearing; the synchronization shaft (6-3) is driven by the servo drive motor (6-1); the transmission gear (6-2) is driven to rotate via the synchronization shaft (6-3); and the transmission gear (6-2) is meshed with a rotating gear (4).

5. A peeling machine, comprising a machine base (8), a knife frame body (1), a pressure ruler frame (9), a knife door servo motor (10), a single drive roller (11), a single roller motor (12), a double drive roller (13), a double roller frame (14), a double roller motor (15) and a PLC control device, characterized in that It also includes a back angle adjustment device as described in any one of claims 2, 3 or 4, wherein the lower end of the double roller frame (14) is slidably connected to a slide rail fixed on the machine base (8) via a slide seat, and a mobile drive device is provided between the slide rail and the slide seat, and the mobile drive device is controlled by a PLC control device, and the double roller frame (14) is driven by the mobile drive device to move forward and backward along the slide rail.

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