Detachable fly cutter for wood flaker

By adopting a detachable flying knife design in the wood chipper, and using an L-shaped support plate and bolts to fix the blades, the problem of difficult replacement and maintenance caused by traditional blade fixing methods is solved, achieving efficient blade replacement and maintenance and improving production efficiency.

CN223877170UActive Publication Date: 2026-02-06NANJING DIJIE MASCH MFG CO LTD
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Patent Information

Application Number
CN202520203357.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-10
Publication Date
2026-02-06
Estimated Expiration
2035-02-10

AI Technical Summary

Technical Problem

Traditional wood chipper blades are fixed to the surface of the blade roller, making replacement and maintenance difficult and affecting production efficiency.

Method used

The design employs a blade roller, an L-shaped support plate, fastening bolts, and fixing bolts, allowing the blade to be detached. It is supported by the L-shaped support plate and fixed with bolts, reducing the impact of space constraints.

Benefits of technology

It enables easy disassembly and maintenance of the cutting blades, improves maintenance efficiency, reduces maintenance costs, ensures cutting accuracy and efficiency, and enhances overall production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a detachable fly cutter for a wood flaker, and relates to the field of fly cutter equipment of wood flakers, the detachable fly cutter comprises two cutter rollers, an L-shaped supporting plate, a blade, a fastening bolt and a fixing bolt, the two cutter rollers are fixedly connected through a main shaft, the L-shaped supporting plate is located between the two cutter rollers, and the L-shaped supporting plate is located between the two cutter rollers. The blade is located on the surface of the L-shaped supporting plate. The fly cutter can be easily disassembled through the cooperation of the cutter roller, the L-shaped supporting plates, the blades, the fastening bolts and the fixing bolts, and the blades are not directly fixed on the surface of the cutter roller but located on the L-shaped supporting plates, so that the influence of space limitation around the cutter roller on blade replacement is greatly reduced, subsequent maintenance and replacement are facilitated, and the service life of the fly cutter is prolonged. Compared with the prior art, the blade fixing device has the advantages that the problems of replacement and maintenance caused by a traditional blade fixing mode are effectively solved, the maintenance efficiency is improved, the maintenance cost is reduced, the cutting precision and efficiency are guaranteed, and the overall production efficiency can be improved.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the fly knife equipment field of wood flaker, concretely is a kind of detachable fly knife for wood flaker. BACKGROUND

[0002] In the wood processing industry, wood flaker is an important equipment, for cutting into wood chip or shaving from log, small-diameter wood, wood harvesting and processing leftovers etc., fly knife is the key component in wood flaker, plays an important role in the process of cutting wood raw material, fly knife is usually composed of knife roll and blade, blade is fixed on knife roll, and wood is cut by high-speed rotation of blade driven by knife roll, so that wood is processed into wood chip product, and the performance of fly knife also directly affects the cutting effect and wood chip quality.

[0003] Since blade is usually fixed on the surface of knife roll, and the space around knife roll is limited, this space limitation makes it difficult to effectively operate when replacing and maintaining blade, resulting in more troublesome replacement and maintenance, which consumes a lot of time and energy, thereby affecting production efficiency.

[0004] Therefore, the utility model provides a detachable fly knife for wood flaker to solve the above problems. SUMMARY

[0005] In order to solve the above technical problems, the utility model provides the following technical scheme:

[0006] A detachable fly knife for wood flaker, comprising knife roll, L-shaped support plate, blade, fastening bolt and fixing bolt, the number of knife roll is two, and two knife rolls are fixedly connected by main shaft, L-shaped support plate is located between two knife rolls, blade is located on the surface of L-shaped support plate, L-shaped support plate is used for supporting blade, blade is used for cutting wood, knife roll is used for rotating blade, fastening bolt is located on the surface of blade, and penetrates blade and is screw-connected with L-shaped support plate, fastening bolt is used for fixing blade, the surface of two knife rolls is provided with fixing bolt, one end of fixing bolt penetrates knife roll and is screw-connected with L-shaped support plate, and fixing bolt is used for fixing L-shaped support plate.

[0007] Further, in the utility model, adjusting hole is opened on the surface of blade, and adjusting hole is used for adjusting the extension length of blade.

[0008] Further, in the utility model, first threaded hole is opened at both ends of L-shaped support plate, second threaded hole is opened on the surface of L-shaped support plate, and guide hole is opened on the surface of two knife rolls.

[0009] Further, in the utility model, the both ends of the L-shaped supporting plate are equipped with first threaded holes, the surface of the L-shaped supporting plate is equipped with second threaded holes, and the surface of the two cutter rollers is equipped with guide holes.

[0010] Further, in the utility model, the surface of the blade is equipped with a gasket, one end of the fastening bolt penetrates the gasket and the adjusting hole and extends to the inner cavity of the second threaded hole, and is in threaded connection with the inner cavity of the second threaded hole.

[0011] Further, in the utility model, the both ends of the gasket are in contact with the blade and the fastening bolt respectively, and the blade is made of alloy tool steel.

[0012] Beneficial effects, the utility model has following beneficial effects:

[0013] The utility model discloses a cutter roller, L-shaped supporting plate, blade, fastening bolt and fixed bolt cooperation, can realize the easy disassembly of flying knife, and since the blade is not directly fixed on the surface of cutter roller, but is located on the L-shaped supporting plate, so the influence of the space restriction around cutter roller on blade replacement is greatly reduced, thereby being favorable to subsequent maintenance replacement, effectively solve the replacement and maintenance problem of traditional blade fixed mode, not only improve maintenance efficiency, reduce maintenance cost, guarantee cutting precision and efficiency, thereby help to improve overall production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is the main view structural schematic diagram of the utility model,

[0015] Fig. 2 It is the separation state structure schematic diagram of L-shaped supporting plate and cutter roller of the utility model,

[0016] Fig. 3 It is the separation state structure schematic diagram of blade and L-shaped supporting plate of the utility model.

[0017] In the drawing,

[0018] 1, cutter roller, 2, L-shaped supporting plate, 3, blade, 4, fastening bolt, 5, fixed bolt, 6, adjusting hole, 7, first threaded hole, 8, second threaded hole, 9, guide hole, 10, gasket. Specific implementation

[0019] For a better understanding of the technical content of the present application, specific embodiments are described below with the accompanying drawings. In the present disclosure, various aspects of the present application are described with reference to the accompanying drawings. The drawings show many embodiments of the application. The embodiments of the present disclosure are not necessarily defined in all aspects of the present application. It should be understood that the various concepts and embodiments introduced above, as well as those described in more detail below, can be implemented in any of a number of ways, as the concepts and embodiments disclosed by the present application are not limited to any implementation. In addition, some aspects of the present application can be used alone or in any appropriate combination with other aspects of the present application.

[0020] Embodiment 1

[0021] As Figs. 1-3 shown, the first embodiment of the present application provides a detachable flying knife for wood flaking machine, which comprises a knife roll 1, an L-shaped support plate 2, a blade 3, a fastening bolt 4 and a fixing bolt 5. The number of knife rolls 1 is two, and the two knife rolls 1 are fixedly connected by a main shaft. The L-shaped support plate 2 is located between the two knife rolls 1. The blade 3 is located on the surface of the L-shaped support plate 2. The L-shaped support plate 2 is used to provide support for the blade 3. The blade 3 is used to cut wood. The knife roll 1 is used to drive the blade 3 to rotate. The fastening bolt 4 is located on the surface of the blade 3 and penetrates the blade 3 and is threadedly connected with the L-shaped support plate 2. The fastening bolt 4 is used to fix the blade 3. The surface of each of the two knife rolls 1 is provided with a fixing bolt 5. One end of the fixing bolt 5 penetrates the knife roll 1 and is threadedly connected with the L-shaped support plate 2. The fixing bolt 5 is used to fix the L-shaped support plate 2.

[0022] As Figs. 1-3 shown, the two knife rolls 1 are fixedly connected by a main shaft. The knife roll 1 is the main component of the flying knife rotation, which drives the blade 3 to cut wood. The L-shaped support plate 2 is located between the two knife rolls 1 and is used to support the blade 3 and ensure the stability of the blade 3 during cutting. The fastening bolt 4 penetrates the blade 3 and is threadedly connected with the L-shaped support plate 2, which is used to fix the blade 3 and prevent it from loosening during cutting. One end of the fixing bolt 5 penetrates the knife roll 1 and is threadedly connected with the L-shaped support plate 2, which is used to fix the L-shaped support plate 2 and ensure its stability on the knife roll 1. The blade 3 is fixed on the L-shaped support plate 2 by the fastening bolt 4 instead of being directly fixed on the knife roll 1, so that the blade 3 can be easily detached when needed, and only the fastening bolt 4 needs to be loosened. Since the blade 3 is not directly fixed on the surface of the knife roll 1 but on the L-shaped support plate 2, the space limitation around the knife roll 1 greatly reduces the influence on the replacement of the blade 3, thereby facilitating subsequent maintenance and replacement.

[0023] Embodiment 2

[0024] Referring to Figs. 1-3This is the second embodiment of the present invention, which is based on the previous embodiment.

[0025] In this embodiment, the surface of the blade 3 is provided with an adjustment hole 6, which is used to adjust the extension length of the blade 3.

[0026] Both ends of the L-shaped support plate 2 are provided with first threaded holes 7, the surface of the L-shaped support plate 2 is provided with second threaded holes 8, and the surfaces of the two cutter rollers 1 are provided with guide holes 9.

[0027] One end of the fixing bolt 5 passes through the guide hole 9 and extends into the inner cavity of the first threaded hole 7, and is threadedly connected to the inner cavity of the first threaded hole 7.

[0028] The blade 3 has a gasket 10 on its surface. One end of the fastening bolt 4 passes through the gasket 10 and the adjusting hole 6 and extends into the inner cavity of the second threaded hole 8, and is threadedly connected to the inner cavity of the second threaded hole 8.

[0029] The two ends of the gasket 10 are in contact with the blade 3 and the fastening bolt 4, respectively. The blade 3 is made of alloy tool steel.

[0030] like Figs. 1-3 As shown, the design of the adjustment hole 6 not only allows adjustment of the extension length of the blade 3, but also provides additional operating space, making it easier to disassemble and install the blade 3. By adjusting the position of the fastening bolt 4 in the blade 3 adjustment hole 6, the extension length of the blade 3 relative to the L-shaped support plate 2 can be changed, thereby adjusting the cutting depth and effect. The use of the shim 10 protects the blade 3 from the direct pressure of the fastening bolt 4, reducing the risk of damage to the blade 3, and also making the disassembly and assembly of the fastening bolt 4 smoother. The blade 3, made of alloy tool steel, has good wear resistance and durability, reducing the frequency of blade 3 replacement, thereby reducing maintenance costs.

[0031] In use, the L-shaped support plate 2 is fixed between the two knife rollers 1 by the fixing bolts 5, one end of the fixing bolts 5 penetrates the guide hole 9 on the knife roller 1, and then is screwed with the first threaded hole 7 at the two ends of the L-shaped support plate 2, ensuring the stable position of the L-shaped support plate 2 and the blade 3 on the knife roller 1, the blade 3 is fixed on the L-shaped support plate 2 by the fastening bolts 4, the fastening bolts 4 penetrate the adjusting hole 6 and the gasket 10 on the blade 3, and then are screwed with the second threaded hole 8 on the L-shaped support plate 2, realizing the stable fixing of the blade 3, by adjusting the position of the fastening bolt 4 in the blade adjusting hole 6, the extension length of the blade 3 relative to the L-shaped support plate 2 can be changed, so that the cutting depth and effect are adjusted, when the knife roller 1 is driven to rotate, the blade 3 fixed on the L-shaped support plate 2 also rotates, so that the wood is cut, when the blade 3 needs to be replaced or maintained, the fastening bolts 4 and the fixing bolts 5 are only loosened, so that the blade 3 and the L-shaped support plate 2 can be easily disassembled, replaced or cleaned and maintained.

[0032] The standard parts used in the present application can be purchased from the market, and can be ordered according to the description and drawings, and the specific connection mode of each part adopts the conventional bolt, rivet, welding and other conventional means in the prior art, the mechanical, parts and equipment adopt the conventional type in the prior art, the control mode is automatically controlled by the controller, and the control circuit of the controller can be realized by simple programming of the person skilled in the art, which belongs to the common knowledge in the art, and the present application is mainly used to protect the mechanical device, so the control mode and circuit connection are not explained in detail.

[0033] Although the present application has been disclosed with the above preferred embodiments, it is not intended to limit the present application. Those skilled in the art can make various modifications and decorations without departing from the spirit and scope of the present application. Therefore, the protection scope of the present application is defined by the claims.

Claims

1. A detachable flying knife for a wood flaking machine, comprising a knife roller (1), an L-shaped support plate (2), a knife blade (3), a fastening bolt (4) and a fixing bolt (5), characterized in that: The number of the cutter roller (1) is two, and the two cutter rollers (1) are fixedly connected through a main shaft, the L-shaped supporting plate (2) is located between the two cutter rollers (1), the cutter blade (3) is located on the surface of the L-shaped supporting plate (2), the L-shaped supporting plate (2) is used for supporting the cutter blade (3), the cutter blade (3) is used for cutting wood, the cutter roller (1) is used for driving the cutter blade (3) to rotate, the fastening bolt (4) is located on the surface of the cutter blade (3) and penetrates through the cutter blade (3) and is in threaded connection with the L-shaped supporting plate (2), the fastening bolt (4) is used for fixing the cutter blade (3), the surfaces of the two cutter rollers (1) are provided with the fixing bolts (5), one end of the fixing bolt (5) penetrates through the cutter roller (1) and is in threaded connection with the L-shaped supporting plate (2), and the fixing bolt (5) is used for fixing the L-shaped supporting plate (2).

2. The detachable flying knife for wood flaking machine according to claim 1, characterized in that: The surface of the cutter blade (3) is provided with the adjusting hole (6), and the adjusting hole (6) is used for adjusting the protruding length of the cutter blade (3).

3. The detachable flying knife for wood flaking machine according to claim 1, characterized in that: Both ends of the L-shaped supporting plate (2) are provided with the first threaded holes (7), the surface of the L-shaped supporting plate (2) is provided with the second threaded holes (8), and the surfaces of the two cutter rollers (1) are provided with the guide holes (9).

4. The detachable flying knife for wood flaking machine according to claim 2, characterized in that: One end of the fixing bolt (5) penetrates through the guide hole (9) and extends to the inner cavity of the first threaded hole (7) and is in threaded connection with the inner cavity of the first threaded hole (7).

5. The detachable flying knife for wood flaking machine according to claim 1, characterized in that: The surface of the cutter blade (3) is provided with the gasket (10), one end of the fastening bolt (4) penetrates through the gasket (10) and the adjusting hole (6) and extends to the inner cavity of the second threaded hole (8) and is in threaded connection with the inner cavity of the second threaded hole (8).

6. The detachable flying knife for wood flaking machine according to claim 5, characterized in that: The two ends of the gasket (10) are in contact with the cutter blade (3) and the fastening bolt (4) respectively, and the cutter blade (3) is made of alloy tool steel.