CN110962195A

CN110962195A - Three-edge cutting knife

Info

Publication number: CN110962195A
Application number: CN201911136242.2A
Authority: CN
Inventors: 刘志平
Original assignee: Jiangsu Liuyidao Precision Machinery Co ltd
Current assignee: Jiangsu Liuyidao Precision Machinery Co ltd
Priority date: 2019-11-19
Filing date: 2019-11-19
Publication date: 2020-04-07
Anticipated expiration: 2039-11-19
Also published as: CN110962195B

Abstract

The invention discloses a three-blade cutting knife which comprises a knife handle, wherein a mounting column is integrally formed on the knife handle, three groups of blades are detachably connected to the mounting column, three groups of sliding grooves penetrating into the knife handle are formed in the mounting column at equal intervals along the length direction of the mounting column, a sliding rail penetrating into the knife handle is detachably connected in the sliding groove, one end, away from the knife handle, of the sliding rail is connected with a connecting sheet, the connecting sheet is connected with a fastening plate which is arranged in the same direction as the sliding rail and is tightly attached to the outer wall of the mounting column, and the blades are integrally formed on the outer side of the fastening; and a fastening nut is installed at the top end of the mounting column, and a locking nut is installed at the position, between the blade and the knife handle, at the bottom of the mounting column. The invention is convenient for the installation and the replacement of the damaged blade and can effectively reduce the use cost.

Description

Three-edge cutting knife

Technical Field

The invention relates to a three-edge cutting knife, and belongs to the technical field of wood processing.

Background

With the continuous development of wood processing technology, the traditional cutting machine is replaced by the numerical control cutting machine in nearly two years, the market is rapidly occupied, the numerical control cutting machine is used for directly processing wood, the working procedures of cutting, trimming, simple profiling and the like can be realized, the processing time is greatly saved, the efficiency is improved, and the processing precision is further improved.

At present, the cutting knife that the cutting machine chooseed for use can be divided into keyway sword and end mill, and the keyway sword is the straight sword of two sword welded types, because the diameter of the straight sword of two sword is 8mm, not only too little easy rupture, and processing timber is comparatively serious to the waste of timber moreover. The end mill comprises a three-edge cutter and a four-edge cutter, wherein the main cutting edge of the end mill is designed on the circumference, the end surface of the end mill is an auxiliary cutting edge, and the auxiliary cutting edge is not ground again, so that the matching precision of processing and the integral processing precision of wood are ensured. However, although the three-edged cutting blade is less worn, once one of the cutting edges is damaged, the entire cutting blade cannot be used, significantly increasing the use cost thereof.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides the three-blade cutting knife which is convenient for installation and replacement of damaged blades and can effectively reduce the use cost.

In order to achieve the purpose, the invention adopts the following technical scheme:

a three-blade cutting knife comprises a knife handle, wherein an installation column is integrally formed on the knife handle, three groups of blades are detachably connected to the installation column, three groups of chutes penetrating into the knife handle are formed in the installation column at equal intervals along the length direction of the installation column, slide rails penetrating into the knife handle are detachably connected in the chutes, one end, away from the knife handle, of each slide rail is connected with a connecting sheet, the connecting sheet is connected with a fastening plate which is arranged in the same direction as the slide rails and is tightly attached to the outer wall of the installation column, and the blades are integrally formed on the outer side of the fastening plate; and a fastening nut is installed at the top end of the mounting column, and a locking nut is installed at a position, located between the blade and the knife handle, at the bottom of the mounting column.

Preferably, the sliding groove is a T-shaped sliding groove, and the sliding rail is a T-shaped sliding rail matched with the T-shaped sliding groove.

Preferably, three groups of clamping grooves matched with the bottom end of the fastening plate are formed in the upper end of the cutter handle.

Preferably, the outer wall of the mounting column is provided with a positioning groove matched with the fastening plate

Compared with the prior art, the invention provides a three-edge cutting knife which has the following beneficial effects: the blade and the mounting column are connected through the double-layer structure of the sliding rail and the fastening plate, the connecting effect is stable, looseness is not prone to occurring, meanwhile, the structure is simple, mounting and dismounting are convenient, and use cost is greatly reduced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is an enlarged view of a portion of FIG. 2 at B;

FIG. 5 is a schematic view of the structure of the blade of the present invention;

FIG. 6 is a schematic view of the structure of the blade of the present invention;

fig. 7 is a schematic structural view of the mounting post of the present invention.

Description of the drawings: 1. handle of a knife, 2, lock nut, 3, erection column, 4, blade, 5, fastening nut, 6, connection piece, 7, mounting plate, 8, slide rail, 9, draw-in groove, 10, spout.

Detailed Description

An embodiment of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the embodiment.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

As shown in figure 1, the three-edge cutting knife provided by the invention comprises a knife handle 1, wherein a mounting column 3 is integrally formed on the knife handle 1, three groups of blades 4 are detachably connected to the mounting column 3, and when the blades 4 are damaged in the using process, the damaged blades 4 can be taken out and replaced for continuous use. As shown in fig. 7, three sets of chutes 10 penetrating into the tool holder 1 are equidistantly formed in the mounting column 3 along the length direction of the mounting column 3, that is, the chutes 10 are not directly formed in the outer wall of the mounting column 3, but are formed in the mounting column 3 and only have a short distance from the outer wall of the mounting column 3, and meanwhile, the chutes 10 extend into the tool holder 1. As shown in fig. 2 to 6, the slide rail 8 is detachably installed in the chute 10, and extend to the interior of the handle of a knife 1, the one end of the slide rail 8, which is far away from the handle of a knife 1, is connected with the connecting sheet 6, the connecting sheet 6 is connected with the fastening plate 7 which is arranged in the same direction as the slide rail 8 and is tightly attached to the outer wall of the mounting column 3, the outer side of the fastening plate 7 is integrally formed with the blade 4, meanwhile, the blade 4 is installed in the middle of the fastening plate 7, namely, one section of the fastening plate 7 is arranged on both sides of the blade 4, during installation, the slide rail 8 is installed in the chute 10, the fastening plate 7 is attached to the outer wall of the mounting column 3, the strength of the blade 4 and the mounting column 3 can be enhanced, then the fastening nut 5 is installed on the top end of the mounting column 3 to be fixed, the locking nut 2.

As a further improvement of the invention, the sliding groove 10 is a T-shaped sliding groove, the sliding rail 8 is a T-shaped sliding rail matched with the T-shaped sliding groove, and the T-shaped structure can further enhance the stability and firmness of the connection between the blade 4 and the mounting column 3.

As a further improvement of the invention, the upper end of the cutter handle 1 is provided with three groups of clamping grooves 9 matched with the bottom end of the fastening plate 7, so that the bottom of the fastening plate 7 can extend into the clamping grooves 9, a certain positioning effect can be realized on the fastening plate 7 before the locking nut 2 is installed, and the connection stability of the device is further enhanced.

As a further improvement of the invention, the outer wall of the mounting column 3 is provided with a positioning groove matched with the fastening plate 7, so that the attaching degree of the fastening plate 7 and the mounting column 3 can be enhanced, and the whole structure of the device is firmer and more beautiful.

The working principle is as follows: during the use, pack into slide rail 8 in spout 10, make mounting plate 7 laminate at the outer wall of erection column 3, the bottom of mounting plate 7 inserts in draw-in groove 9 simultaneously, then it is fixed at the top installation fastening nut 5 of erection column 3, it is fixed at the bottom installation lock nut 2 of erection column 3, can guarantee that the holistic firm of cutting sword, when blade 4 appears damaging, get fastening nut 5 and lock nut 2 and loosen, take out the change with damaged blade 4 and can continue to use.

The above disclosure is only for a few specific embodiments of the present invention, however, the present invention is not limited to the above embodiments, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.

Claims

1. A three-blade cutting knife comprises a knife handle (1), wherein a mounting column (3) is integrally formed on the knife handle (1), and three groups of blades (4) are detachably connected to the mounting column (3), and is characterized in that three groups of sliding grooves (10) penetrating into the knife handle (1) are formed in the mounting column (3) at equal intervals along the length direction of the mounting column (3), a sliding rail (8) penetrating into the knife handle (1) is detachably connected in each sliding groove (10), one end, far away from the knife handle (1), of each sliding rail (8) is connected with a connecting sheet (6), each connecting sheet (6) is connected with a fastening plate (7) which is arranged in the same direction as the corresponding sliding rail (8) and is tightly attached to the outer wall of the mounting column (3), and the blades (4) are integrally formed on the outer side of each fastening plate (7); fastening nut (5) are installed on the top of erection column (3), lock nut (2) are installed to the position that the bottom of erection column (3) is located between blade (4) and handle of a knife (1).

2. A three-edged cutting blade as claimed in claim 1, characterized in that the slide groove (10) is a T-shaped slide groove and the slide rail (8) is a T-shaped slide rail adapted to the T-shaped slide groove.

3. A three-edged cutting knife according to claim 2, characterized in that the upper end of the handle (1) is provided with three sets of clamping grooves (9) adapted to the bottom end of the fastening plate (7).

4. A three-edged cutting knife as claimed in claim 3, characterized in that the mounting column (3) has, on its outer wall, a positioning groove adapted to the fastening plate (7).