Epidemic wood rotary cutting processing device

By introducing an automatic grinding system for the rotary cutting blade and grinding shaft into the veneer wood veneer processing device, the problem of the rotary cutting blade becoming dull easily is solved, and the automatic sharpness of the rotary cutting blade is achieved, ensuring the consistency of the thin board quality and the continuity of production.

CN224255607UActive Publication Date: 2026-05-19ZHEJIANG DOLO IND +4
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG DOLO IND
Filing Date
2025-07-18
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing wood veneer machines often dull their blades when processing diseased wood, requiring frequent machine stops for sharpening, resulting in low efficiency and wasted time and effort.

Method used

A rotary cutting device for infected wood was designed, comprising a rotary cutting blade, a first drive mechanism, and a grinding shaft. The blade is automatically sharpened by oscillating the rotary cutting blade to contact the grinding shaft. Combined with the second drive mechanism driving the grinding shaft to rotate, the blade of the rotary cutting blade is automatically kept sharp.

Benefits of technology

It enables automatic grinding of the rotary cutting blade, keeping the rotary cutting blade sharp, ensuring consistent quality of thin plates, avoiding frequent machine downtime, and improving processing efficiency and production continuity.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an epidemic wood rotary cutting processing device which comprises a rotary cutter connected to a cutter holder in a swinging mode, a first driving mechanism driving the rotary cutter to swing and a cutter grinding shaft arranged behind the upper end of the rotary cutter, and a plate outlet channel is formed in the space between the rotary cutter and the cutter grinding shaft. The back face of the rotary cutter is further provided with a plurality of guide plates used for guiding the cut thin plates out of the cutter holder, the outer side of the machine body is further provided with a second driving mechanism used for driving the cutter grinding shaft to rotate, when feeding of the epidemic wood is intermittent, the rotary cutter swings upwards to enable the blade portion of the rotary cutter to abut against the cutter grinding shaft, and the cutter grinding shaft rotates to grind the blade portion of the rotary cutter. After the rotary cutter swings upwards, the blade part of the rotary cutter can be quickly polished in cooperation with autorotation of the cutter grinding shaft, and the blade part of the rotary cutter can be always kept sharp in cooperation with intermittent feeding of the epidemic wood.
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Description

Technical Field

[0001] This utility model relates to a device for rotary cutting of infected wood. Background Technology

[0002] The structure and working principle of the existing wood veneer machine are roughly the same as the log veneer device disclosed in patent CN113492448A. Its working principle is that the log rotates under the joint drive of the upper fixed roller, the lower fixed roller and the moving roller, thereby generating veneer cutting power to work with the veneer cutting tool to cut the thin board out of the log.

[0003] Diseased wood often develops many nodules, which are hard in texture. When the veneer is used to process these diseased woods, the blade of the veneer is easily dulled. In order to ensure the consistency of the quality of the thin boards cut, it is necessary to stop the machine frequently and disassemble the veneer to grind the blade, which is time-consuming and laborious. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a wood veneer processing device that can automatically sharpen the veneer blade.

[0005] The technical solution of this utility model is: a wood rotary cutting processing device, including a rotary cutting blade oscillatingly connected to a blade holder, a first driving mechanism for driving the rotary cutting blade to oscillate, and a grinding shaft disposed behind the upper end of the rotary cutting blade, wherein the space between the rotary cutting blade and the grinding shaft forms a board exit channel;

[0006] The back of the rotary cutter is also provided with multiple guide plates for guiding the cut sheet out of the cut blade holder;

[0007] The outer side of the machine body is also provided with a second drive mechanism that drives the grinding shaft to rotate.

[0008] When the feeding of infected wood is interrupted, the rotary cutter is swung upward so that its cutting edge abuts against the grinding shaft, and the grinding shaft rotates to grind the cutting edge of the rotary cutter.

[0009] Specifically, the first driving mechanism is an electric cylinder.

[0010] Specifically, the second drive mechanism is a motor.

[0011] Furthermore, the rotary cutter includes a fixing part and a rotary cutter body fixed to the front end of the fixing part.

[0012] Furthermore, the tool holder is fixed inside the machine body, and the front end of the tool holder has an installation step. A connecting seat is provided on the installation step, and the first drive mechanism is oscillatingly connected to the connecting seat.

[0013] Furthermore, the fixing part is provided with a fixing groove corresponding to the rear end of the rotary cutter body, and the rear end of the rotary cutter body is inserted into the fixing groove and fixed to the fixing part by multiple pairs of fixing bolts.

[0014] Furthermore, a connecting shaft is provided on each of the two rear ends of the fixing part, and a bearing seat is provided on each of the two top sides of the tool holder, and the two connecting shafts are rotatably connected to the two bearing seats respectively.

[0015] Specifically, the guide plate is a triangular plate.

[0016] Furthermore, a support platform is provided on each side of the mounting step, the first driving mechanism is disposed between the two support platforms, and the front end of the fixed part of the rotary cutter after swinging down abuts against the two support platforms.

[0017] Furthermore, the grinding shaft includes a shaft body and a ceramic sleeve fixed to the outer periphery of the shaft body.

[0018] The beneficial effects of this utility model are as follows: This utility model has a simple structure. After the rotary cutter swings upward, the blade can be quickly sharpened by the rotation of the grinding shaft. Combined with the interval of feeding the wood, the blade can be kept sharp at all times, thus ensuring the consistency of the quality of the thin sheet produced. The grinding shaft is located at the upper rear of the blade holder. After the rotary cutter swings downward, there is a large space between the grinding shaft and the rotary cutter, which will not affect the output of the thin sheet. The guide plate on the back of the rotary cutter can prevent the thin sheet from hitting the blade holder during the output process and causing jamming. Attached Figure Description

[0019] Figure 1 This is a diagram showing the state of this utility model during operation;

[0020] Figure 2 This is a schematic diagram of the structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the rotary cutter in this utility model;

[0022] Figure 4 This is a schematic diagram of the grinding shaft in this utility model.

[0023] In the figure: 1. Blade holder; 2. Rotary cutting blade; 3. First drive mechanism; 4. Grinding shaft; 5. Guide plate; 6. Fixing part; 7. Rotary cutting blade body; 8. Mounting step; 9. Connecting shaft; 10. Shaft body; 11. Ceramic sleeve. Detailed Implementation

[0024] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0025] Combination Figure 1-4As shown, a wood rotary cutting processing device includes a rotary cutting blade 2 oscillatingly connected to a blade holder 1, a first driving mechanism 3 for driving the rotary cutting blade 2 to oscillate, and a grinding shaft 4 disposed behind the upper end of the rotary cutting blade 2. The space between the rotary cutting blade 2 and the grinding shaft 4 forms a board exit channel.

[0026] The back of the rotary cutter 2 is also provided with multiple guide plates 5 for guiding the cut thin plates out of the cut blade holder 1;

[0027] The outer side of the machine body is also provided with a second drive mechanism that drives the grinding shaft 4 to rotate.

[0028] When the blade of the rotary cutter 2 becomes dull, the rotary cutter 2 swings upward so that its blade comes into contact with the grinding shaft 4. The grinding shaft 4 rotates to grind the blade of the rotary cutter 2. After grinding is completed, the rotary cutter 2 returns to its original position.

[0029] The advantages of the above structure are: simple construction; after the rotary cutter 2 swings up, the blade of the rotary cutter 2 can be quickly sharpened by the rotation of the grinding shaft 4. Combined with the interval of feeding the wood, the blade of the rotary cutter 2 can be kept sharp at all times, thus ensuring the consistency of the quality of the thin plate produced by rotary cutting; the grinding shaft 4 is set at the upper rear of the blade holder 1. After the rotary cutter 2 swings down, there is a large space between the grinding shaft 4 and the rotary cutter 2, which will not affect the output of the thin plate. The guide plate 5 set on the back of the rotary cutter 2 can prevent the thin plate from hitting the blade holder 1 during the output process and causing the plate to jam.

[0030] Specifically, the first drive mechanism 3 is an electric cylinder.

[0031] Specifically, the second drive mechanism is a motor.

[0032] In another embodiment, combined Figure 2 and Figure 3 As shown, the rotary cutter 2 includes a fixing part 6 and a rotary cutter body 7 fixed to the front end of the fixing part 6.

[0033] In another embodiment, combined Figure 1 and Figure 2 As shown, the tool holder 1 is fixed in the machine body. The front end of the tool holder 1 has a mounting step 8. A connecting seat is provided on the mounting step 8. The first drive mechanism 4 is oscillatingly connected to the connecting seat. The purpose of the mounting step 8 is to accommodate the installation of electric cylinders with long strokes.

[0034] In another embodiment, such as Figure 3 As shown, the fixing part 6 is provided with a fixing groove corresponding to the rear end of the rotary cutter body 7. The rear end of the rotary cutter body 7 is inserted into the fixing groove and fixed to the fixing part 6 by multiple pairs of fixing bolts to ensure the reliability of the connection between the rotary cutter body 7 and the fixing part 6.

[0035] In another embodiment, such as Figure 3 As shown, a connecting shaft 9 is provided on each of the two rear ends of the fixing part 6, and a bearing seat is provided on each of the two top sides of the tool holder 1. The two connecting shafts 9 are rotatably connected to the two bearing seats respectively.

[0036] In another embodiment, combined Figure 2 and Figure 3 As shown, the guide plate 5 is a triangular plate. When the rotary cutter 2 swings down to cut the wood, the top of the guide plate 5 protrudes from the cutter holder 1 and is inclined downwards to smoothly guide the cut thin plate to the conveyor belt at the rear end of the cutter holder 1.

[0037] In another embodiment, a support platform is provided on each side of the mounting step 8, and the first driving mechanism 3 is disposed between the two support platforms. After the rotary cutter 2 swings down, the front end of the fixing part 6 abuts against the two support platforms to avoid the first driving mechanism 3 being continuously subjected to force.

[0038] In another embodiment, such as Figure 4 As shown, the grinding shaft 4 includes a shaft body 10 and a ceramic sleeve 11 fixed to the outer periphery of the shaft body 10.

Claims

1. A device for processing diseased wood by rotary cutting, characterized in that, It includes a rotary cutting blade (2) that is oscillatingly connected to a blade holder (1), a first drive mechanism (3) that drives the rotary cutting blade (2) to oscillate, and a grinding shaft (4) located behind the upper end of the rotary cutting blade (2). The space between the rotary cutting blade (2) and the grinding shaft (4) forms a plate outlet channel. The back of the rotary cutter (2) is also provided with multiple guide plates (5) for guiding the cut thin plates out of the cut blade holder (1); The outer side of the machine body is also equipped with a second drive mechanism to drive the grinding shaft (4) to rotate. When the feeding of infected wood is interrupted, the rotary cutter (2) is swung up so that its blade abuts against the grinding shaft (4), and the grinding shaft (4) rotates to grind the blade of the rotary cutter (2).

2. The wood rotary cutting processing device as described in claim 1, characterized in that, The first drive mechanism (3) is an electric cylinder.

3. The wood rotary cutting processing device as described in claim 2, characterized in that, The second drive mechanism is a motor.

4. The wood rotary cutting processing device as described in claim 3, characterized in that, The rotary cutter (2) includes a fixing part (6) and a rotary cutter body (7) fixed to the front end of the fixing part (6).

5. The wood rotary cutting processing device as described in claim 4, characterized in that, The tool holder (1) is fixed in the machine body. The front end of the tool holder (1) has an installation step (8). A connecting seat is provided on the installation step (8). The first drive mechanism (3) is oscillatingly connected to the connecting seat.

6. The wood rotary cutting processing device as described in claim 5, characterized in that, The fixing part (6) is provided with a fixing groove corresponding to the rear end of the rotary cutter body (7). The rear end of the rotary cutter body (7) is inserted into the fixing groove and fixed to the fixing part (6) by multiple pairs of fixing bolts.

7. The wood rotary cutting processing device as described in claim 6, characterized in that, The fixed part (6) has a connecting shaft (9) on each side of its rear end, and the tool holder (1) has a bearing seat on each side of its top. The two connecting shafts (9) are rotatably connected to the two bearing seats respectively.

8. The wood rotary cutting processing device as described in claim 7, characterized in that, The guide plate (5) is a triangular plate.

9. The wood rotary cutting processing device as described in claim 8, characterized in that, The mounting step (8) is provided with a support platform on each side, and the first driving mechanism (3) is located between the two support platforms. After the rotary cutter (2) swings down, the front end of the fixing part (6) abuts against the two support platforms.

10. The wood rotary cutting processing device as described in claim 9, characterized in that, The grinding shaft (4) includes a shaft body (10) and a ceramic sleeve (11) fixed to the outer periphery of the shaft body (10).