Knife drum structure for drum chipper

Abstract

The utility model relates to the technical field of drum chippers, in particular to a knife drum structure for a drum chipper, which comprises a knife roll main body, an installation groove is arranged on the surface of the knife roll main body, and a sliding groove is arranged on the inner wall of the installation groove. A protection structure is mounted on the inner side of the mounting groove and comprises a tool rest, the tool rest is mounted in the mounting groove, a guide groove is fixedly formed in the bottom surface of the tool rest, a blade body is inserted into the inner side of the guide groove, a bolt is in threaded connection with the top surface of the tool rest, and a shielding plate is slidably mounted on the inner side of a sliding groove; and one end of the shielding plate is fixedly connected with a spring, the two side walls of the knife roll body are in threaded connection with a rotating frame, and the end of the rotating frame is fixedly connected with a push block. The cutter rest and the bolt can be covered with the shielding plate, the bolt can be prevented from being invaded by wood chips, it can be guaranteed that the bolt is convenient to disassemble and assemble, and the use experience of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drum chippers, in particular to a knife drum structure for drum chippers. Background Art

[0002] Chipper is a special equipment for preparing high-quality wood chips. It is suitable for various paper mills and particle board factories. Chipper can cut logs, small-diameter wood, etc. into high-quality industrial wood chips with uniform length, smooth cut and uniform thickness. It can also cut branches, boards, etc.

[0003] In this regard, China's patent application number: CN202123255993.1 discloses a knife roller for a drum chipper that is easy to replace blades, including a knife roller body, the surface of the knife roller body is evenly provided with mounting parts, the surface of the mounting part is overlapped with a knife pressing part, the bottom of the knife pressing part is overlapped with a blade, the bottom of the blade is overlapped with a pad, the pad is fixedly connected to the surface of the mounting part, and a tightening part is fixedly connected between the knife pressing part and the mounting part. The utility model sets a pad body, fixes the pad body on the mounting part by screws, overlaps the blade body on the top of the pad body, twists the first limit rod and the second limit rod, adjusts the length of the blade body protruding, presses the knife pressing plate on the top of the blade body, aligns the knife pressing through hole, the mounting through hole, the pad through hole and the threaded sleeve, screws in the T-shaped tightening rod, so that the knife pressing plate clamps the position of the blade body, completes the installation of the blade body, and achieves the effect of easy replacement of the blade.

[0004] The chipper fixes the cutter pressing part and the blade by a tightening part, but in the process of cutting wood chips, wood chips will enter the vicinity of the tightening part. As the use time increases, the wood chips will clog the installation through hole, causing the top of the tightening part to be "submerged" in the wood chips. When using a tool to rotate the tightening part, the wood chips need to be cleaned before the tool can be installed in place, which is inconvenient.

[0005] Therefore, in order to solve the above problems, a knife drum structure for a drum chipper is proposed. Utility Model Content

[0006] The purpose of the utility model is to provide a knife drum structure for a drum chipper to solve the problem that the chipper in the prior art mentioned in the above background technology fixes the knife pressing member and the blade by a tightening member, but in the process of cutting wood chips, wood chips will enter the vicinity of the tightening member. As the use time increases, the wood chips will block the installation through hole, so that the top of the tightening member is "submerged" in the wood chips. When using a tool to rotate the tightening member, the wood chips need to be cleaned before the tool can be installed in place, which is quite inconvenient.

[0007] To achieve the above object, the utility model provides the following technical solution: a knife drum structure for a drum chipper, comprising: a knife roller body, a mounting groove is provided on the surface of the knife roller body, and a slide groove is provided on the inner wall of the mounting groove;

[0008] A protective structure is installed on the inner side of the mounting groove, and the protective structure includes a tool holder, which is installed inside the mounting groove, a guide groove is fixedly installed on the bottom surface of the tool holder, a blade body is inserted on the inner side of the guide groove, a bolt is threadedly connected to the top surface of the tool holder, a shield plate is slidably installed on the inner side of the slide groove, one end of the shield plate is fixedly connected to a spring, a rotating frame is threadedly connected to the two side walls of the knife roller body, and a push block is fixedly connected to the end of the rotating frame.

[0009] Preferably, the guide groove is magnetically connected to the blade body and the inner wall of the mounting groove.

[0010] Preferably, the tool holder and the blade body are fixedly connected inside the mounting groove by bolts.

[0011] Preferably, the shield is arc-shaped and covers the outside of the bolt, and the other end of the shield is inserted into the slot.

[0012] Preferably, one end of the spring is fixedly connected to the inner wall of the slide groove.

[0013] Preferably, the push block is movably mounted on the inner side of the slide groove, and the push block abuts against one end of the shield plate.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the utility model can cover the outside of the tool holder and the bolt through the shield plate, which can prevent the bolt from being disturbed by wood chips and ensure the convenient disassembly and assembly of the bolt, so as to improve the user experience of the device.

[0015] The utility model is provided with a protective structure, and the rotating frame is rotated. The rotating frame drives the pushing block to move in the sliding groove. The pushing block releases the abutment against the shield plate, and the shield plate can be reset under the elastic action of the spring, and the shield plate is retracted into the sliding groove, and the blade body is inserted into the guide groove, and the guide groove can magnetically absorb the blade body to pre-fix the blade body in the knife holder, and the knife holder and the blade body are placed in the installation groove, and the guide groove can be magnetically attracted to the inner wall of the installation groove, so that the knife holder can be pre-fixed in the installation groove, and then the knife holder and the blade body can be fixed in the installation groove with bolts, and the rotating frame is rotated in the opposite direction, and the rotating frame pushes the shield plate through the pushing block, so that the other end of the shield plate extends out of the sliding groove, and then the cover is set on the outside of the knife holder and the bolt to prevent wood chips from contacting the bolt. At the same time, the shield plate will be inserted into the slot, which can further fix the knife holder and improve the use experience of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a schematic side cross-sectional view of the structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the structure explosion of the utility model in side view;

[0019] Figure 4 It is a schematic side cross-sectional view of the structure of the push block of the utility model;

[0020] Figure 5 It is a schematic diagram of the structure explosion of the knife roller main body and the rotating frame of the utility model.

[0021] In the figure: 1. knife roller body; 11. mounting groove; 12. slide groove; 2. protection structure; 21. knife holder; 22. guide groove; 23. blade body; 24. bolt; 25. shield; 26. spring; 27. rotating frame; 28. push block; 29. ​​slot. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-5 , an embodiment provided by the utility model:

[0024] The knife roller body 1 and the mounting groove 11 used in the present application are products that can be directly purchased on the market. Their principles and connection methods are existing technologies well known to those skilled in the art, so they will not be described in detail here.

[0025] A knife drum structure for a drum chipper comprises: a knife roller body 1, a mounting groove 11 is provided on the surface of the knife roller body 1, and a slide groove 12 is provided on the inner wall of the mounting groove 11;

[0026] A protective structure 2 is installed on the inner side of the mounting groove 11, and the protective structure 2 includes a tool holder 21, which is installed inside the mounting groove 11, a guide groove 22 is fixedly installed on the bottom surface of the tool holder 21, a blade body 23 is inserted on the inner side of the guide groove 22, a bolt 24 is threadedly connected to the top surface of the tool holder 21, a baffle 25 is slidably installed on the inner side of the slide groove 12, one end of the baffle 25 is fixedly connected to a spring 26, a rotating frame 27 is threadedly connected to the two side walls of the knife roller body 1, and a push block 28 is fixedly connected to the end of the rotating frame 27.

[0027] Furthermore, the guide groove 22 is magnetically connected to the blade body 23 and the inner wall of the mounting groove 11 .

[0028] Furthermore, the blade holder 21 and the blade body 23 are fixedly connected inside the mounting groove 11 by bolts 24 .

[0029] Furthermore, the shielding plate 25 is arc-shaped and covers the outer side of the bolt 24 , and the other end of the shielding plate 25 is inserted into the slot 29 .

[0030] Furthermore, one end of the spring 26 is fixedly connected to the inner wall of the slide slot 12 .

[0031] Furthermore, the push block 28 is movably mounted inside the slide slot 12, and the push block 28 abuts against one end of the shield plate 25.

[0032] Working principle: before installation, rotate the rotating frame 27, the rotating frame 27 drives the push block 28 to move in the slide groove 12, the push block 28 releases the contact with the baffle 25, the baffle 25 can be reset under the elastic action of the spring 26, the baffle 25 is retracted into the slide groove 12, the blade body 23 is inserted into the guide groove 22, the guide groove 22 can magnetically absorb the blade body 23, so as to pre-fix the blade body 23 in the tool holder 21, the tool holder 21 and the blade body 23 are placed in the installation groove 11, the guide groove 22 can be magnetically attracted with the inner wall of the installation groove 11, the tool holder 21 can be pre-fixed in the installation groove 11, and then the bolt 24 can be used to fix the tool holder 21 and the blade body 23 in the installation groove 11;

[0033] Then, the rotating frame 27 is rotated in the opposite direction, and the rotating frame 27 pushes the shield 25 through the push block 28, so that the other end of the shield 25 extends out from the slide groove 12, and then the cover is set on the outside of the tool holder 21 and the bolt 24 to prevent the wood chips from contacting the bolt 24. At the same time, the shield 25 will be inserted into the slot 29 to further fix the tool holder 21 and improve the user experience of the device.

[0034] The above description is only a preferred embodiment of the utility model and does not limit the utility model in any form. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A knife drum structure for a drum chipper, comprising: A knife roller body (1), wherein a mounting groove (11) is provided on the surface of the knife roller body (1), and a sliding groove (12) is provided on the inner wall of the mounting groove (11); Features: A protective structure (2) is installed on the inner side of the installation groove (11), and the protective structure (2) includes a tool holder (21). The tool holder (21) is installed inside the installation groove (11), and a guide groove (22) is fixedly installed on the bottom surface of the tool holder (21), and a blade body (23) is inserted into the inner side of the guide groove (22). A bolt (24) is threadedly connected to the top surface of the tool holder (21), and a shield plate (25) is slidably installed on the inner side of the slide groove (12), and one end of the shield plate (25) is fixedly connected to a spring (26). A rotating frame (27) is threadedly connected to the two side walls of the knife roller body (1), and a push block (28) is fixedly connected to the end of the rotating frame (27).

2. The knife drum structure for a drum chipper according to claim 1, characterized in that: The guide groove (22) is magnetically connected to the blade body (23) and the inner wall of the mounting groove (11).

3. The knife drum structure for a drum chipper according to claim 1, characterized in that: The blade holder (21) and the blade body (23) are fixedly connected inside the mounting groove (11) via bolts (24).

4. The knife drum structure for a drum chipper according to claim 1, characterized in that: The shielding plate (25) is arc-shaped and covers the outer side of the bolt (24). The other end of the shielding plate (25) is inserted into the slot (29).

5. The knife drum structure for a drum chipper according to claim 1, characterized in that: One end of the spring (26) is fixedly connected to the inner wall of the slide groove (12).

6. The knife drum structure for a drum chipper according to claim 1, characterized in that: The push block (28) is movably mounted inside the slide groove (12), and the push block (28) abuts against one end of the shield plate (25).

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