Disposable multi-edge carving blade

Abstract

A disposable multi-edge carving blade contains a first end and a second end which are symmetrical to each other and are connected together so as to form a V-shaped end portion of the carving blade, wherein the first end of the carving blade has a first side face defined thereon, and the second end of the carving blade has a second side face formed thereon, the carving blade also includes two chip removing grooves correspondingly arranged beside a distal end of the V-shaped end portion thereof, and each chip removing groove has a cutting face defined on a bottom end thereof and intersecting with a rotation axis of the carving blade so that at least two cutting edges are oppositely defined beside the rotation axis.

Claims

1. A disposable multi-edge carving blade comprising: a first end and a second end which are symmetrical to each other about an axis perpendicular to a longitudinal axis of the carving blade and are connected together so as to form a substantially V-shaped end portion of the carving blade, the first end of the carving blade having a first side face defined thereon, the second end of the carving blade having a second side face formed thereon, the carving blade including two chip removing grooves positioned at a distal end of the V-shaped end portion, and each chip removing groove having a cutting face defined on a bottom end thereof, the cutting faces of the chip removing grooves intersecting with a rotation axis of the carving blade to define at least two cutting edges on opposing sides of the rotation axis; wherein the carving blade is fixed on a holding seat in a negative-angle state to incline in a forward direction, the two cutting edges of the carving blade being opposed with respect to the rotation axis to extend in forward and rearward directions therefrom.

2. The disposable multi-edge carving blade as claimed in claim 1, wherein an end point of the rotation axis is defined an angle tangent to the cutting faces of the carving blade, and an end surface of the carving blade has a predetermined width and is tangent to the cutting faces so as to form a first cutting rim and a second cutting rim.

3. A disposable multi-edge carving blade comprising: a first end and a second end which are symmetrical to each other about an axis perpendicular to a longitudinal axis of the carving blade and are connected together so as to form a substantially V-shaped end portion of the carving blade, the first end of the carving blade having a first side face defined thereon, the second end of the carving blade having a second side face formed thereon, the carving blade including two chip removing grooves correspondingly arranged beside a distal end of the V-shaped end portion, and each chip removing groove having a cutting face defined on a bottom end thereof, the cutting faces of the chip removing grooves intersecting with a rotation axis of the carving blade to define at least two cutting edges on opposing sides of the rotation axis; wherein an end point of the rotation axis is defined an angle tangent to the cutting faces of the carving blade, and an end surface of the carving blade has a predetermined width and is tangent to the cutting faces so as to form a first cutting rim and a second cutting rim.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a perspective view showing the assembly of a disposable multi-edge carving blade according to a preferred embodiment of the present invention.

(2) FIG. 2 is a top plan view showing the assembly of the disposable multi-edge carving blade according to the preferred embodiment of the present invention.

(3) FIG. 3 is a front view showing the assembly of the disposable multi-edge carving blade according to the preferred embodiment of the present invention.

(4) FIG. 4 shows the disposable multi-edge carving blade being fixed on a tool according to the preferred embodiment of the present invention.

(5) FIG. 5 also shows the disposable multi-edge carving blade being fixed on a tool according to the preferred embodiment of the present invention.

(6) FIG. 6 is a plan view of a conventional carving tool.

(7) FIG. 7 is another plan view of the conventional carving tool.

(8) FIG. 8 is an amplified plan view of a part of a conventional carving tool.

(9) FIG. 9 is a plan view of a conventional disposable carving tool.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

(10) With reference to FIGS. 1-4, a disposable multi-edge carving blade 10 according to a preferred embodiment of the present invention comprises a central hole 11 defined at a central position thereof, a first end and a second end which are symmetrical to each other and are connected together so as to form a V-shaped end portion of the carving blade 10, wherein the first end of the carving blade 10 has a first side face 12 defined thereon, and the second end of the carving blade 10 has a second side face 13 formed thereon. The carving blade 10 also includes two chip removing grooves 14 correspondingly arranged beside a distal end of the V-shaped end portion thereof, and each chip removing groove 14 has a cutting face 150 defined on a bottom end thereof and intersecting with a rotation axis 100 of the carving blade 10 so that at least two cutting edges are oppositely defined beside the rotation axis 100, wherein the first side face 12 and the cutting face 150 on the first end forms a first cutting rim 151, and the second side face 13 and the cutting face 150 on the second end forms a second cutting rim 152, thus forming the at least two cutting edges on the carving blade 10.

(11) FIG. 5 is a side plan view showing the carving blade 10 being fixed on a tool 20 according to the preferred embodiment of the present invention. The carving blade 10 is fixed on a holding seat 21 in a negative-angle state and inclines forward. It is to be noted that an added thickness m of the carving blade 10 makes two side thicknesses of the carving blade 10 beside two sides of the rotation axis 100 equal so as to increase a number of cutting edges on a distal end of the carving blade 10, thereby obtaining the multi-edge carving blade 10.

(12) Referring further to FIGS. 3 and 5, an end point of the rotation axis 100 is not located at a top surface of the carving blade 10, and the end point of the rotation axis 100 is defined an angle θ, such as 60 degrees. Furthermore, the end point of the rotation axis 100 is tangent to the cutting faces 150 of the carving blade 10, and an end surface of the carving blade 10 has a predetermined width and is tangent to the cutting faces 150 so as to form the first cutting rim 151 and the second cutting rim 152, wherein a width of the first cutting rim 151 is a radius R of engraving cutting, hence the first cutting rim 151 and the second cutting rim 152 are employed to cut workpiece, thereby obtaining the multi-edge carving blade 10.

(13) As mentioned above, the distal end of the carving blade 10 has at least two cutting rims, such as the first cutting rim 151 and the second cutting rim 152 so as to cut the workpiece simultaneously while feeding the tool, thus eliminating chips of the workpiece quickly, doubling cutting speed, and decreasing working time and cost. The cutting speed is increased multiplicatively according to the number of the cutting edges. Preferably, the carving blade 10 is locked on a non-eccentric tool arbor so as to be applicable for chamfer tools or non-eccentric disposable carving tools of varying arbors, thus saving using cost.

(14) In addition, the distal end of the carving blade 10 has the at least two cutting rims for eliminating the chips of the workpiece quickly and accelerating working time efficiently.

(15) While the preferred embodiments of the invention have been set forth for the purpose of disclosure, modifications of the disclosed embodiments of the invention as well as other embodiments thereof may occur to those skilled in the art. Accordingly, the appended claims are intended to cover all embodiments which do not depart from the spirit and scope of the invention.