CN202271740U

CN202271740U - Three-front pencil grinding cutter

Info

Publication number: CN202271740U
Application number: CN2011204075437U
Authority: CN
Inventors: 张意立
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-10-14
Filing date: 2011-10-14
Publication date: 2012-06-13
Anticipated expiration: 2021-10-14

Abstract

Provided is a three-front pencil grinding cutter. The lateral plane of a cutter holder of a handheld disk vertically extends to form three inclined conical cutter holders arranged in equal-division mode. The inclination of blade installation face of the inclined conical cutter holders is parallel to a conical hole working face, a few conical hole working face is cut to form a scrap discharge port with a vertical row cutting face at the back side of the front inclined conical cutter holder, pen holder blades and pen point grinding pieces are respectively fixed on the blade installation face of each inclined conical cutter holder through two blade screws, sharp openings of the blades face the vertical row cutting face, the pen holder blades and the pen point grinding pieces are identical in the size of the section and integrated, the pen holder blades are made of high-hardness steel pieces, the pen point grinding piece is a compound gravel abrasive disc, and the diameter of the position where the boundary between the pen holder blade and the pen point grinding piece are arranged on the conical hole working face is equal to the diameter of a pencil lead. The three pen holder blades arranged in equal-division mode is used for cutting a pencil holder to prevent wood materials of the pen holder from being eaten, and the pen point grinding pieces can synchronously sharpen pencil points made of fragile materials.

Description

A kind of three cutting edge of a knife or a sword pencil grinding cuttves

Affiliated technical field

The utility model relates to a kind of pencil-knife of stationery, particularly relates to a kind of three cutting edge of a knife or a sword pencil grinding cuttves.

Background technology

There is investigation to show; Plain edition pencil-knife on the existing market all is that hilted broadsword cuts pencil, and the position that pencil is cut into circular cone is one-sided stressed, and the pencil-lead carbon-point is a fragile material; Pencil shaft timber is easy to generate the material feeding phenomenon; The pencil-lead of fragile material also is not suitable for cutting with the cutter volume, and being everlasting when causing pencil-lead snaps when soon having been cut, and makes us annoyance endlessly.

Summary of the invention

The purpose of the utility model provides a kind of three cutting edge of a knife or a sword pencil grinding cuttves; The position that pencil is cut into circular cone receives three cuttves and acts on simultaneously; Stressed symmetry, balance avoid pencil shaft timber position to produce the material feeding phenomenon, guarantee that pencil-lead is not easy to fracture in working angles.Simultaneously, can also be with the synchronous sharpening of the pencil-lead of fragile material.

To achieve these goals; The utility model adopts following technical scheme: a kind of three cutting edge of a knife or a sword pencil grinding cuttves; Vertically extend the oblique cone knife rest that three five equilibriums are arranged on the knife rest side plane of hand-held disk; The gradient of the blade installed surface of described oblique cone knife rest is parallel to the conical bore working face and cuts a spot of conical bore working face and the vertical row bevel of previous oblique cone knife rest dorsal part formation chip removal mouth; Fixing penholder blade and nib abrasive disc respectively with two blade screws on the blade installed surface of each oblique cone knife rest; Blade cutting edge of a knife or a sword mouth directed in orthogonal row bevel, the integral type that described penholder blade and nib abrasive disc equate for sectional dimension, the penholder blade adopts the high rigidity steel disc; The nib abrasive disc adopts synthetic sand stone mill sheet, and the diameter of present position on the conical bore working face, line of demarcation of penholder blade section and nib abrasive disc section equals the diameter of pencil-lead.

The beneficial effect of the utility model is: the penholder blade of three five equilibrium layouts cuts pencil shaft avoids pencil shaft timber to produce the material feeding phenomenon; The nib abrasive disc of three five equilibrium layouts can also be with the synchronous sharpening of the pencil-lead of fragile material; Novel original creation, make simple and conveniently, the scope of application is extensive.

Description of drawings

Fig. 1 is the outward appearance front elevation of the utility model;

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 is the cutaway view of B-B among Fig. 4;

Fig. 4 is the cutaway view of A-A among Fig. 3.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is described further: a kind of three cutting edge of a knife or a sword pencil grinding cuttves; Vertically extend the oblique cone knife rest 53 that three five equilibriums are arranged on the knife rest side plane 58 of hand-held disk 55; The gradient of the blade installed surface 65 of described oblique cone knife rest 53 is parallel to conical bore working face 59 and cuts the vertical row bevel 83 formation chip removal mouths 95 of a spot of conical bore working face 59 and previous oblique cone knife rest 53 dorsal parts; Fixing penholder blade 63 and nib abrasive disc 69 respectively with two blade screws 73 on the blade installed surface 65 of each oblique cone knife rest 53; Blade cutting edge of a knife or a sword mouth 68 directed in orthogonal row bevel 83; Both are the equal integral type of sectional dimension described penholder blade 63 and nib abrasive disc 69; Penholder blade 63 adopts the high rigidity steel disc, and nib abrasive disc 69 adopts synthetic sand stone mill sheet, and 63 sections diameters with present position on conical bore working face 59, line of demarcation of 69 sections of nib abrasive discs of penholder blade equal the diameter of pencil-lead.

The course of work of the utility model is following:

The dorsal part of oblique cone knife rest 53 is vertical row bevels 83, is the center with conical bore working face 59 axial lines, and trisection is arranged and perpendicular to knife rest side plane 58.

The inboard of oblique cone knife rest 53 is conical bore working faces 59, and circular cone large port 97 diameters that formation is intersected on conical bore working face 59 and plane, bottom side 50 are at 10 millimeters.

The outside of oblique cone knife rest 53 is knife rest faces of cylinder 96, with conical bore working face 59 be concentric axis, diameter is at 30 millimeters.

The top of oblique cone knife rest 53 is that knife rest outer face 56 is parallel to knife rest side plane 58, apart from knife rest side plane 58 at 30 millimeters.

Blade cutting edge of a knife or a sword mouth 68 directed in orthogonal are arranged bevel 83 but are not contacted vertical row bevel 83, and the width that keeps chip removal mouth 95 is between 1 millimeter to 3 millimeters.

Exceeding knife rest outer face 56 after install the blade outer end 66 of penholder blade 63 and nib abrasive disc 69 is 3 millimeters, makes pencil-lead can be ground to pointed cone.Frictional force when annular knurl 57 strengthens operation on the outer rim of hand-held disk 55 between the centre of the palm and the hand-held disk 55.

During use; One end of pencil stretches into from circular cone large port 97, clings to the blade cutting edge of a knife or a sword mouth 68 that three five equilibriums are installed, and slowly pencil is done in face of 68 rotations of blade cutting edge of a knife or a sword mouth with respect to hand-held disk 55; The penholder blade of three five equilibrium layouts cuts pencil shaft; Each blade cutting edge of a knife or a sword mouth 68 in individual pen work to the cutting output of pencil shaft have only the plain edition pencil-knife at hilted broadsword to 1/3rd of the cutting output of pencil shaft, eliminate bits and drain from the vertical row bevel 83 of chip removal mouth 95, avoid pencil shaft timber to produce the material feeding phenomenon; Simultaneously; The nib abrasive disc that three five equilibriums are arranged can also be with the synchronous sharpening of the pencil-lead of fragile material, novel original creation, makes simple and conveniently, and the scope of application is extensive.

Claims

1. cutting edge of a knife or a sword pencil grinding cutter; Vertically extend the oblique cone knife rest (53) that three five equilibriums are arranged on the knife rest side plane (58) of hand-held disk (55); The gradient of the blade installed surface (65) of described oblique cone knife rest (53) is parallel to conical bore working face (59) and cuts a spot of conical bore working face (59) and the vertical row bevel (83) of previous oblique cone knife rest (53) dorsal part formation chip removal mouth (95); The blade installed surface (65) of each oblique cone knife rest (53) is gone up and is being fixed penholder blade (63) and nib abrasive disc (69) respectively with two blade screws (73); Blade cutting edge of a knife or a sword mouth (68) directed in orthogonal row bevel (83); Both are the equal integral type of sectional dimension described penholder blade (63) and nib abrasive disc (69); Penholder blade (63) adopts the high rigidity steel disc, and nib abrasive disc (69) adopts synthetic sand stone mill sheet, and the line of demarcation of penholder blade (63) section and nib abrasive disc (69) section conical bore working face (59) upward the diameter of present position equal the diameter of pencil-lead.