Wood chipper knife roll

Abstract

The utility model relates to the technical field of wood chipper knife rolls, in particular to a wood chipper knife roll which comprises a main shaft, and two installation discs are fixedly arranged on the main shaft. The two mounting discs are respectively arranged at left and right ends of the spindle; a plurality of chipping knife groups are fixedly arranged between the two mounting discs; the chipping knife group is arranged close to the edge of the mounting disc; the chipping cutter sets are evenly arranged in the circumferential direction. A material accommodating chamber matched with the chipping knife group is arranged between the two mounting discs; the material containing chamber is arranged in front of a cutter head of the chipping cutter group; a material stopping block is arranged in the middle of the material containing chamber. Compared with the prior art, due to the arrangement of the material stopping block in the middle of the material containing chamber, wood can be stopped and prevented from entering the material containing chamber too early and too much, breakage of the wood before the wood is cut off by the chipping cutter set is reduced, the wood chip yield is increased, and crushed materials are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of knife rollers for wood chippers, and specifically discloses a knife roller for wood chippers. Background Art

[0002] Wood chipper is a special equipment used to produce wood chips. It is also called wood slicer and belongs to one of the wood processing equipment series. This equipment is widely used in the material preparation section of the production process of textile, papermaking, pulping, wood-based panels and other industries. Wood chipper is mainly composed of feeding device, pressing device, cutting system, discharging device, electronic control system and other parts. The working principle is to cut the wood into thin slices through the high-speed rotating blade contact with the wood to be processed. The feeding device pushes the wood into the cutting system, and the pressing device pushes the wood down at a certain speed to ensure that the wood keeps a certain distance from the cutting machine head. The cutting system uses high-speed rotating blades to cut the wood into thin slices, which are then pushed out of the machine by the discharging device.

[0003] The cutting system of the existing chipper, such as the patent with announcement number CN219171183U, discloses a wood chipper blade and a rotating knife roller, including a knife body and a knife tip, wherein the knife tip is arranged on the top of the knife body, and the knife tip is an inclined knife tip or a combined inclined knife tip composed of a left inclined knife tip and a right inclined knife tip connected to each other; a plurality of horizontal tightening holes are arranged on the knife body; a clamping groove is also arranged on the inner side of the knife body; and the blade is detachably connected to the rotating knife roller.

[0004] The material storage chamber of the above-mentioned knife body is set in front of the knife tip, but when feeding wood, it is easy for too much wood to enter the material storage chamber too early and hit the inner wall of the material storage chamber. In this process, the wood is easy to be partially broken, and then it will be cut by the blade, which affects the yield of wood chips and causes more fragments. Utility Model Content

[0005] In view of the above-mentioned deficiencies in the prior art, the utility model provides a wood chipper blade roller to solve the problem that the material chamber of the blade body is arranged in front of the blade tip, but the wood is easily fed into the material chamber too early and too much and hits the inner wall of the material chamber. In this process, the wood is easily partially broken and then cut by the blade, which affects the wood chip yield and causes a lot of broken materials.

[0006] To achieve the above purpose, the technical solution of the utility model is:

[0007] A wood chipper blade roller comprises a main shaft, on which two mounting plates are fixedly arranged; the two mounting plates are respectively arranged at the left and right ends of the main shaft; a plurality of chipper blade groups are fixedly arranged between the two mounting plates; the chipper blade group is arranged near the edge of the mounting plate; the plurality of chipper blade groups are evenly arranged along the circumferential direction; a material storage chamber is arranged between the two mounting plates to match the chipper blade group; the material storage chamber is arranged in front of the blade head of the chipper blade group; a material stopper is arranged in the middle of the material storage chamber. The setting of the material stopper in the middle of the material storage chamber can block the wood, prevent the wood from entering the material storage chamber too early and in excess, reduce the breakage of the wood before being cut by the chipper blade group, improve the wood chip yield rate, and reduce the broken wood.

[0008] Preferably, the material storage chamber includes a plurality of partitions evenly arranged between two mounting plates; the partitions are fixedly arranged on the main shaft; a housing is fixedly arranged between two adjacent partitions and between the partition and the mounting plate; the housing cross section is arranged in a Z-shape as a whole; one end of the housing is arranged at the bottom of the chipping knife group. The arrangement of the partitions reduces the collision of the wood chips after cutting in the housing, avoids the movement of the wood chips along the axial direction of the main shaft, further ensures the wood chip yield rate, and reduces the fragments.

[0009] Preferably, the chipping knife set comprises a knife seat plate; the end of the knife seat plate is fixedly arranged on the mounting plate; the cross section of the knife seat plate is L-shaped as a whole; a blade is arranged on the knife seat plate; the blade is fixedly arranged on the knife seat plate by bolts; a threaded hole is arranged on the knife seat plate; a screw is arranged in the threaded hole; the end of the screw abuts against the blade, so as to facilitate the replacement of the blade.

[0010] Preferably, a pressure plate is arranged on the blade, and the bolt passes through the pressure plate and the blade and then is threadedly arranged on the blade seat plate, so as to ensure the stability of the blade arrangement.

[0011] Preferably, one end of the housing is arranged at the bottom of the knife seat plate; the other end of the housing is fixedly connected with an arc plate; the end of the arc plate away from the housing is fixedly arranged on the rear wall of the knife seat plate. The arc plate can close the gap between the housing and the chipping knife group to avoid leakage.

[0012] Preferably, the material blocking block comprises a concave plate with a concave cross section; a sealing plate with an inverted "7" cross section is arranged at the open end of the concave plate; the concave plate is arranged at a distance from the housing and is arranged above the housing. The setting of the concave plate can prevent the wood from entering the material storage chamber too early and too much. The setting of the sealing plate prevents the cut wood chips from getting stuck at the concave plate.

[0013] The beneficial effects of the utility model are as follows: the setting of the material blocking block in the middle of the material storage chamber can block the wood, prevent the wood from entering the material storage chamber too early and in excess, reduce the breakage of the wood before being cut by the chipping knife group, improve the wood chip yield rate, and reduce broken materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0017] Figure 3 It is a cross-sectional schematic diagram of the chipping knife assembly of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the knife seat plate of the utility model;

[0019] Figure 5 It is a structural schematic diagram of the blade of the utility model;

[0020] Figure 6 It is a structural schematic diagram of the pressing plate of the utility model.

[0021] Description of reference numerals:

[0022] 1-spindle, 2-mounting plate, 3-material chamber, 4-knife seat plate, 5-knife blade, 6-bolt, 7-screw, 8-pressing plate, 9-blocking block; 301-partition plate, 302-housing, 303-arc plate; 901-concave plate, 902-sealing plate. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0024] like Figure 1-6As shown, a wood chipper blade roller, a wood chipper blade roller, includes a main shaft 1, two mounting plates 2 are fixedly arranged on the main shaft 1; the two mounting plates 2 are respectively arranged at the left and right ends of the main shaft 1; three chipper blade groups are fixedly arranged between the two mounting plates 2; the chipper blade group is arranged near the edge of the mounting plate 2; the three chipper blade groups are evenly arranged along the circumferential direction; a material storage chamber 3 is arranged between the two mounting plates 2 to cooperate with the chipper blade group; the material storage chamber 3 is arranged in front of the blade head of the chipper blade group; a material stopper 9 is arranged in the middle of the material storage chamber 3. The setting of the material stopper 9 in the middle of the material storage chamber can block the wood, prevent it from entering the material storage chamber 3 too early and too much, reduce the breakage of the wood before being cut by the chipper blade group, improve the wood chip yield rate, and reduce the broken materials. The material blocking block 9 includes a concave plate 901 with a concave cross section; a sealing plate 902 with an inverted "7" cross section is provided at the open end of the concave plate 901; the concave plate 901 is spaced apart from the housing 302 and is provided above the housing 302. The provision of the concave plate 901 can prevent too much wood from entering the material storage chamber 3 too early. The provision of the sealing plate 902 prevents the cut wood chips from getting stuck at the concave plate 901.

[0025] In the above arrangement, the material chamber 3 includes three partitions 301 evenly arranged between two mounting plates 2; the partitions 301 are fixedly arranged on the main shaft 1; a housing 302 is fixedly arranged between two adjacent partitions 301 and between the partitions 301 and the mounting plates 2; the cross section of the housing 302 is arranged in a Z-shape as a whole; one end of the housing 302 is arranged at the bottom of the chipping knife group. The arrangement of the partitions 301 reduces the collision of the cut wood chips in the housing 302, avoids the movement of the wood chips along the axial direction of the main shaft 1, further ensures the wood chip yield rate, and reduces the broken materials.

[0026] The chipping blade assembly includes a blade support plate 4; the end of the blade support plate 4 is fixedly arranged on the mounting plate 2; the cross section of the blade support plate 4 is L-shaped as a whole; a blade 5 is arranged on the blade support plate 4; the blade 5 is fixedly arranged on the blade support plate 4 by means of a bolt 6; a threaded hole is arranged on the blade support plate 4; a screw 7 is arranged in the threaded hole; the end of the screw 7 abuts against the blade 5. It is convenient to replace the blade 5. A pressing plate 8 is arranged on the blade 5; the bolt 6 penetrates the pressing plate 8 and the blade 5 and is then threadedly arranged on the blade support plate 4 to ensure the stability of the blade 5.

[0027] To avoid material leakage, one end of the shell 302 is set at the bottom of the knife base plate 4; the other end of the shell 302 is fixedly connected with an arc plate 303; the end of the arc plate 303 away from the shell 302 is fixedly set on the rear wall of the knife base plate 4, and the arc plate 303 can close the gap between the shell 302 and the chipping knife group.

[0028] Although the utility model is described in detail by referring to the accompanying drawings and in combination with the preferred embodiments, the utility model is not limited thereto. Without departing from the spirit and essence of the utility model, a person of ordinary skill in the art may make various equivalent modifications or substitutions to the embodiments of the utility model, and these modifications or substitutions shall be within the scope of the utility model / any person of ordinary skill in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the utility model, and they shall be within the scope of protection of the utility model. Therefore, the scope of protection of the utility model shall be based on the scope of protection of the claims.

Claims

1. A wood chipper blade roller, comprising a main shaft (1), characterized in that: Two mounting plates (2) are fixedly arranged on the main shaft (1); the two mounting plates (2) are respectively arranged at the left and right ends of the main shaft (1); a plurality of chipping knife groups are fixedly arranged between the two mounting plates (2); the chipping knife groups are arranged near the edges of the mounting plates (2); the plurality of chipping knife groups are evenly arranged along the circumferential direction; a material storage chamber (3) is arranged between the two mounting plates (2) to cooperate with the chipping knife groups; the material storage chamber (3) is arranged in front of the knife head of the chipping knife group; and a material stopper (9) is arranged in the middle of the material storage chamber (3).

2. The wood chipper blade roller according to claim 1, characterized in that: The material storage chamber (3) comprises a plurality of partitions (301) evenly arranged between two mounting plates (2); the partitions (301) are fixedly arranged on the main shaft (1); a shell (302) is fixedly arranged between two adjacent partitions (301) and between the partitions (301) and the mounting plates (2); the shell (302) has an overall Z-shaped cross section; and one end of the shell (302) is arranged at the bottom of the chipping knife assembly.

3. The wood chipper blade roller according to claim 2, characterized in that: The chipping knife assembly comprises a knife seat plate (4); the end of the knife seat plate (4) is fixedly arranged on the mounting plate (2); the cross section of the knife seat plate (4) is arranged in an L-shape as a whole; a blade (5) is arranged on the knife seat plate (4); the blade (5) is fixedly arranged on the knife seat plate (4) by means of a bolt (6); a threaded hole is arranged on the knife seat plate (4); a screw (7) is arranged in the threaded hole; and the end of the screw (7) abuts against the blade (5).

4. The wood chipper blade roller according to claim 3, characterized in that: A pressure plate (8) is arranged on the blade (5); the bolt (6) passes through the pressure plate (8) and the blade (5) and is then threadedly arranged on the blade seat plate (4).

5. The wood chipper blade roller according to claim 4, characterized in that: One end of the shell (302) is arranged at the bottom of the knife seat plate (4); the other end of the shell (302) is fixedly connected to the arc plate (303); and one end of the arc plate (303) away from the shell (302) is fixedly arranged on the rear wall of the knife seat plate (4).

6. The wood chipper blade roller according to claim 5, characterized in that: The material blocking block (9) comprises a concave-shaped plate (901) having a concave cross-section; a sealing plate (902) having an inverted "7"-shaped cross-section is arranged at the open end of the concave-shaped plate (901); the concave-shaped plate (901) is spaced apart from the shell (302) and is arranged above the shell (302).

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