Impact and wear resistant ring planer flying cutter seat assembly

Through the innovative design of the positioning bracket and long-shaft screw structure, the problem of the non-adjustable cutting depth of the fly knife holder assembly of the ring planer was solved, which improved the stability and wear resistance of the blades and extended their service life.

CN224334608UActive Publication Date: 2026-06-09NANJING KAISHENG MACHINERY MANUFACTURING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING KAISHENG MACHINERY MANUFACTURING CO LTD
Filing Date
2025-06-24
Publication Date
2026-06-09

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    Figure CN224334608U_ABST
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Abstract

The utility model discloses a kind of impact-resistant wear-resistant ring planer fly cutter seat assemblies, belong to ring planer fly cutter seat technical field, including positioning support, the positioning support includes inner ring and outer ring, and tooth slot is opened on the circumference of inner ring and outer ring;Knife plate seat, both ends of the knife plate seat are fixedly connected with gear, and gear is inserted in tooth slot inside, knife blade is installed on the horizontal plane of the knife plate seat, and the top of knife blade is compressed with pressing plate, the knife plate seat, knife blade and pressing plate are fastened with fastening bolt and are penetrated in common. Through the synchronous adaptability adjustment of cutting depth and cutting angle of knife blade, the device can be used, the cutting angle and cutting depth of knife blade are adjusted according to different requirements, so as to reduce the contact impact force of knife blade and wood, and then the impact resistance and wear resistance of knife blade installation are improved, the service life of knife blade is effectively improved.
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Description

Technical Field

[0001] This utility model relates to the field of ring planer fly cutter holder technology, specifically a ring planer fly cutter holder assembly that is impact-resistant and wear-resistant. Background Technology

[0002] A ring planer is a tool used for wood processing, mainly for planing the surface of wood to obtain a smooth surface. The fly knife holder is its main component, which consists of many hard blades that plane the surface of the wood smoothly while rotating at high speed.

[0003] An investigation revealed that a Chinese utility model patent discloses an impact-resistant and wear-resistant fly knife holder assembly for a ring planer (publication number: CN222096442U). This assembly includes an inner ring plate and an outer ring plate. The outer ring plate is parallel to the outer side of the inner ring plate. Clamping components are fitted onto the outer top edges of both the inner and outer ring plates. Each clamping component includes a limiting component. The limiting component's interior clamps the outer top edges of both the inner and outer ring plates. A connecting block is engaged on the left side of the limiting component's interior. A limiting block is threaded onto the outer side of the limiting component. The two ends of the fly knife assembly are fitted onto the inner center of the connecting block, which is parallel to the inner and outer ring plates. This design reduces the impact of the scraper on the wood, shortens the travel distance for shaving replacement, and reduces the frequency of replacement. Furthermore, the limiting function facilitates repair and replacement when damaged, reducing maintenance time. This design also allows for easy adjustment of the scraper angle to reduce scraper wear and lower production costs.

[0004] While the aforementioned patent reduces scraper wear by adjusting the installation angle of the scraper, it cannot adjust the cutting depth. This causes the cutting position of the scraper to change after the angle is adjusted, resulting in the scraper being unable to cut the wood or cutting to an excessive depth. When the cutting depth is too large, it increases the impact force on the scraper, thereby reducing the stability of the scraper's use. The high-intensity impact can cause the scraper to loosen, thus reducing its service life.

[0005] Therefore, this utility model provides an impact-resistant and wear-resistant ring planer fly cutter holder assembly to solve the above problems. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] This invention provides an impact- and wear-resistant ring planer fly cutter holder assembly, which aims to solve the problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, the present invention provides the following technical solution: an impact-resistant and wear-resistant ring planer fly cutter holder assembly, comprising a positioning bracket, wherein the positioning bracket comprises an inner ring and an outer ring, and the inner ring and the outer ring are provided with toothed grooves on their circumferences, and a long shaft screw passes through the inner ring and the outer ring together;

[0010] The blade holder has gears fixedly connected to both ends, and the gears are inserted into the tooth grooves. A blade is installed on the horizontal surface of the blade holder, and a pressure plate is pressed on the top of the blade. The blade holder, blade, and pressure plate are all fastened together by fastening bolts.

[0011] As a preferred technical solution of this application, a positioning flange is fixedly connected to the center of the inner ring near the outer ring. Countersunk holes are provided on both the inner and outer rings at the corresponding long shaft screws, and a nut that is threadedly connected to the long shaft screw is respectively abutted inside the countersunk hole.

[0012] As a preferred technical solution of this application, the blade holder is clamped between the inner ring and the outer ring, and the horizontal end of the blade holder is provided with a slot for mounting the blade and the pressure plate.

[0013] As a preferred technical solution of this application, the blade holder is provided with a positioning hole adapted to the fastening bolt through, and the blade and the pressure plate are provided with a rectangular groove for the fastening bolt to pass through.

[0014] As a preferred technical solution of this application, an abutment groove is provided on the side of the blade away from the cutting edge, and a retaining plate is fixedly connected to the lower surface of the pressure plate, and the retaining plate engages and abuts against the inside of the abutment groove.

[0015] As a preferred technical solution of this application, the blade holder has a threaded hole inside, and a hand-tightening screw is threaded inside the threaded hole. The axis of the hand-tightening screw is at the same horizontal plane as the contact surface of the blade and the pressure plate. The hand-tightening screw is used for the end abutment of the blade and the pressure plate.

[0016] (III) Beneficial Effects

[0017] The beneficial effects of this application are as follows:

[0018] 1. This utility model enables the device to adjust the cutting angle and cutting depth of the blade synchronously and adaptably according to different needs during use, thereby reducing the impact force between the blade and the wood, improving the impact resistance and wear resistance of the blade installation, effectively increasing the service life of the blade, and effectively reducing the occurrence of loose installation due to excessive impact force.

[0019] 2. This utility model, through the setting of the hand-tightening screw, can abut and position the adjusted blade and pressure plate, further improving the stability of the blade after the cutting depth is adjusted, and avoiding the blade position shift caused by the impact between the blade and the wood. At the same time, the clamping and positioning of the blade by the pressure plate and the blade holder further improves the impact resistance of the blade compared with the traditional bolt fastening. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present utility model;

[0021] Figure 2 This is a schematic diagram of the overall structure of the positioning bracket of this utility model;

[0022] Figure 3 This is a schematic diagram of the blade installation state structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the blade explosion structure of this utility model.

[0024] In the picture:

[0025] 1. Positioning bracket; 11. Inner ring; 12. Outer ring; 13. Long shaft screw; 14. Positioning flange; 15. Gear groove; 2. Blade holder; 21. Gear; 22. Blade; 23. Pressure plate; 24. Fastening bolt; 25. Hand-tightening screw; 26. Abutment groove; 27. Clamping plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] like Figure 1-4As shown, this utility model provides a flying knife holder assembly, including a positioning bracket 1, which includes an inner ring 11 and an outer ring 12, with toothed grooves 15 formed on the circumference of both the inner ring 11 and the outer ring 12. A long shaft screw 13 passes through the inner ring 11 and the outer ring 12. A blade holder 2 has gears 21 fixedly connected to both ends of the blade holder 2, with the gears 21 inserted into the toothed grooves 15. A blade 22 is mounted on the horizontal surface of the blade holder 2, and a pressure plate 23 is pressed onto the top of the blade 22. The blade holder 2, the blade 22, and the pressure plate 23 pass through the toothed grooves 15. The fastening bolt 24 is tightened, and the synchronous displacement of the blade 22 and the pressure plate 23 ensures the clamping performance of the pressure plate 23 on the blade 22, while ensuring that the extension distance of the blade 22 is consistent. The clamping of the pressure plate 23 and the blade holder 2 improves the impact resistance of the blade 22. At the same time, the blade 22 is positioned by different angles of the gear 21 and the tooth groove 15, so as to realize the adaptability adjustment of different cutting angles of the blade 22. Thus, by adjusting the different cutting depths and different cutting angles of the blade 22, its impact resistance and wear resistance under different use conditions are improved.

[0028] Furthermore, a positioning flange 14 is fixedly connected to the center of the inner ring 11 near the outer ring 12. Countersunk holes are provided at the corresponding positions of the long shaft screw 13 on both the inner ring 11 and the outer ring 12, and a nut that is threadedly connected to the long shaft screw 13 is respectively abutted inside the countersunk hole. External threads are provided at both ends of the long shaft screw 13. Through the connection of the long shaft screw 13 and the nut, the inner ring 11, the blade holder 2 and the outer ring 12 are tightly fixed, thereby ensuring the stability and firmness of the blade holder 2 installation. Moreover, the assembly structure allows for individual disassembly and replacement for local damage without the need for overall replacement, reducing its usage cost.

[0029] Furthermore, the cutter holder 2 is clamped between the inner ring 11 and the outer ring 12. The horizontal end of the cutter holder 2 is provided with a slot for mounting the blade 22 and the pressure plate 23. The cutter holder 2 is provided with a positioning hole for the fastening bolt 24 to pass through. The blade 22 and the pressure plate 23 are provided with rectangular slots for the fastening bolt 24 to pass through. With the setting of the rectangular slots, the blade 22 and the pressure plate 23 can be slidably adjusted when the fastening bolt 24 is fixed in the fastening position, thereby completing the adjustment of different cutting depths.

[0030] Furthermore, an abutment groove 26 is provided on the side of the blade 22 away from the cutting edge. A retaining plate 27 is fixedly connected to the lower surface of the pressure plate 23, and the retaining plate 27 engages and abuts inside the abutment groove 26. Through the engagement and abutment of the abutment groove 26 and the retaining plate 27, while the pressure plate 23 presses the blade 22, the engagement and abutment of the retaining plate 27 and the abutment groove 26 can further abut and position the blade 22, further improving the firmness of the blade 22's installation.

[0031] Furthermore, the blade holder 2 has a threaded hole inside, and a hand-tightening screw 25 is threaded inside the threaded hole. The axis of the hand-tightening screw 25 is on the same horizontal plane as the contact surface of the blade 22 and the pressure plate 23. The hand-tightening screw 25 is used for the end abutment of the blade 22 and the pressure plate 23. By using the hand-tightening screw 25 to abut and position the blade 22 and the pressure plate 23, the impact resistance of the blade 22 is further improved, and the loosening and displacement of the blade 22 caused by impact is reduced.

[0032] Working principle: First, the angle and extension length of the blade 22 are adjusted according to its optimal cutting depth and cutting angle. First, the long shaft screw 13 is loosened to adjust the distance between the inner ring 11 and the outer ring 12, and then the insertion angle of the gear 21 is adjusted. After the adjustment is appropriate, the long shaft screw 13 is tightened to complete the positioning. Then, the position of the blade 22 and the pressure plate 23 is adjusted to adjust the extension length of the blade 22, thereby adjusting the cutting depth. At the same time, the rotation of the hand screw 25 completes the abutment positioning of the blade 22 and the end of the pressure plate 23, improving the impact resistance of the blade 22 and thus improving the overall service life of the device.

[0033] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. An impact and wear resistant ring planer flying cutter seat assembly characterized by: The system includes a positioning bracket (1), which includes an inner ring (11) and an outer ring (12), and the inner ring (11) and the outer ring (12) are provided with toothed grooves (15) on their circumference. A long shaft screw (13) passes through the inner ring (11) and the outer ring (12). The blade holder (2) has gears (21) fixedly connected to both ends, and the gears (21) are inserted into the tooth groove (15). The blade (22) is mounted on the horizontal surface of the blade holder (2), and a pressure plate (23) is pressed on the top of the blade (22). The blade holder (2), the blade (22) and the pressure plate (23) are fastened together by fastening bolts (24).

2. A shock and wear resistant ring planer flying cutter seat assembly according to claim 1, characterized in that: The inner ring (11) is fixedly connected to the center of the side near the outer ring (12) with a positioning flange (14). The inner ring (11) and the outer ring (12) are both provided with countersunk holes at the corresponding long shaft screw (13), and the inside of the countersunk holes is respectively abutted by a nut that is threadedly connected to the long shaft screw (13).

3. A shock and wear resistant ring planer flying cutter seat assembly according to claim 2, characterized in that: The blade holder (2) is clamped between the inner ring (11) and the outer ring (12), and the horizontal end of the blade holder (2) is provided with a slot for mounting the blade (22) and the pressure plate (23).

4. The impact-resistant and wear-resistant ring planer fly cutter holder assembly according to claim 3, characterized in that: The blade holder (2) has a positioning hole for the fastening bolt (24) to pass through, and the blade (22) and the pressure plate (23) have rectangular grooves for the fastening bolt (24) to pass through.

5. The impact-resistant and wear-resistant ring planer fly cutter holder assembly according to claim 1, characterized in that: The blade (22) has an abutment groove (26) on the side away from the blade edge, and a retaining plate (27) is fixedly connected to the lower surface of the pressure plate (23), and the retaining plate (27) engages and abuts against the inside of the abutment groove (26).

6. The impact-resistant and wear-resistant ring planer fly cutter holder assembly according to claim 5, characterized in that: The blade holder (2) has a threaded hole inside, and a hand screw (25) is threaded inside the threaded hole. The axis of the hand screw (25) is on the same horizontal plane as the contact surface of the blade (22) and the pressure plate (23). The hand screw (25) is used for the end abutment of the blade (22) and the pressure plate (23).