JPH0947946A - Back edge polishing device for scissor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pair of scissors with a back edge polishing device accurately polishing the back edge of scissors easily by any one and improve working efficiency through remarkable shortening of a polishing time. SOLUTION: A polishing device 1 is formed in such a manner that a polishing tool 4 having a grinding surface 5 to grind the back edge of a pair of scissors 13 is removably attached to a fixing frame 3 part on a bed 2. The polishing tool 4 has three kinds wherein two polishing tools have an upper surface curved in an arcuate shape and the shape of an elongated curve and the radii of a circular arc being different from each other and the tolling tool has an upper surface having an elongated rectangular horizontal plane, and the polishing tools are exchangeable according to the scissors 13. The polishing tool 4 fixed at the fixing frame 3 is combined with a scissors press frame 8 to press the scissors 13 against a grinding surface 5 by a rotatable roller 9. A blade line guide 12 on which a plurality of measure lines 12a paralleling the blade line of the scissors 13 are drawn when the scissors 13 is correctly matched with a polishing direction on the grinding surface 5 are marked on the bed 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scissor back blade polishing apparatus capable of accurately and easily polishing back blades of scissors for beauty and beauty.

[0002]

2. Description of the Related Art Hair cutting scissors generally used in barber shops and beauty salons have a blade line of an arc having a radius R of about 800 mm, and a back blade of the scissors is bent in parallel with this blade line. It has a gutter shape with a recess having a radius of 80 to 100 mm (referred to as a gutter bottom), and has a shape in which the opposite side of the blade line is cut out, leaving an arc-shaped scissor spine with a radius of about 800 mm (Fig. 1).
1). The average opening angle between the center line of the gutter bottom and the center line of the scissors, that is, the line connecting the screw hole and the scissor tip is 4 °, and the back blade is twisted toward the scissor tip. With this twist, a proper clearance angle of the blade is obtained over the entire blade line, and the mechanism is such that the hair can be cut accurately with a light force. For this reason,
When the scissors are sharply sharpened and the scissors are polished, the scissors must be polished so that the correct clearance angle is obtained at each position of the scissors blade line, that is, the back blade is kept twisted. Conventionally, the method of polishing the back blade is to grind it by hitting the back blade on a general wide horizontal grindstone, and to distribute the abrasive evenly on the scissors lap equipped with the grinding surface for polishing the back edge of a cylindrical surface. There was a way to hit the back edge and sharpen while doing it. However, in these methods, the entire blade line is applied to the grinding surface to sharpen it, so that it cannot cope with the twist of the back blade and changes the clearance angle, which makes it impossible to cut the scissors by repeating polishing. In contrast to the above, there was also a device that fixed the back blade of the scissors upward and moved the grindstone according to the twist of the back blade to sharpen the back blade, but depending on the individual scissors, adjust it to a slightly different twist condition. It was difficult to set the device, and it took time and effort to make it impractical.

[0003]

The problem to be solved by the present invention is to solve the above-mentioned problems, and anyone can easily and accurately grind the back edge of the scissors, greatly shortening the grinding time. Another object is to provide a scissors back blade polishing device with improved work efficiency.

[0004]

Means for Solving the Problems The constitution of the present invention which has solved the above problems is as follows: 1) A polishing tool having an abrasive surface of a curved surface having an elongated arc shape having a predetermined width on the upper surface thereof can be freely attached to and detached from a pedestal. Attached to
A scissor holding frame is attached to the polishing tool so as to be vertically slidable and detachable in the normal direction of the grinding surface, and is on the tangential plane of the grinding surface perpendicular to the vertical sliding direction of the scissor holding frame and is ground. Grind the scissors holding roller around an axis parallel to the reference line inclined from the circumferential direction of the grinding surface within an angle range of ± 1 ° of the average opening angle between the scissors scissors center line and the back gutter bottom center line. Scissors back blade polishing device rotatably attached to the scissors holding frame at the upper position 2) A polishing tool having a slender rectangular horizontal flat surface with a predetermined width on the upper surface is detachably attached to the pedestal , The scissors holding frame is vertically slidably and detachably attached to the polishing tool in the normal direction of the grinding surface, and the scissors center line of the scissors and the back gutter center line on the grinding surface and for polishing At a position above the grinding surface, hold the scissors holding roller around an axis parallel to the reference line inclined from the longitudinal direction of the grinding surface within an angle range of ± 1 ° of the average opening angle. Scissors back blade polishing device rotatably attached to a scissors holding frame 3) In the above 1) or 2), the polishing surface of the polishing tool is formed by removably attaching a polishing sheet to the upper surface of the polishing tool body. Scissor back blade polishing device 4) The guide rail is provided on the scissor press frame, and a plurality of guide grooves are provided on the polishing tool, and the scissor press frame is attached to the polishing surface of the polishing tool by engagement of the guide rail and the guide groove. The scissors back blade polishing apparatus according to any one of 1) to 3), which is vertically slidable in a normal direction. 5) The outer peripheral surface of the pressing roller is covered with an elastic body having a uniform thickness. ) -4) Any of the scissors back blade polishing apparatus 6) The position where scissors are placed and the scissors are pulled in parallel with the scissors blade line when the scissors center line is aligned so as to be perpendicular to the reference line. The scissors back blade polishing according to any one of 1) to 5) above, wherein a plurality of reference lines serving as guides for directions are provided on the pedestal. It is in the location.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION In the scissors back blade polishing apparatus of the present invention, a polishing tool having a polishing surface of a curved surface in an arc shape is used. In such a grinding surface, if an arbitrary line on the grinding surface parallel to the central axis direction of the curved surface is regarded as the highest line (top line) AB on the grinding surface, the angle is gradually shifted from this line AB. The height of the line Ab on the polished surface gradually decreases (see FIG. 10A, but the dimensions and curvature are exaggerated). On the other hand, when looking at the shape of the back blade from the front blade side, the scissors have the shape of an upside down gutter with the center line of the gutter bottom at the highest position. A line AC inclined from the top line AB of the scissors center line to the center line of the scissors and the gutter bottom by about 4 ° to the right is set on the grinding surface, and the gutter bottom center line 19 of the scissors is set to the grinding surface. When the center line 20 of the scissors is aligned with the line AC inclined to the right with the line AB at the top, the lines of the scissors and the grinding surface correspond in terms of angle and height (see FIG. 10B). However, since the center line 19 of the gutter bottom of the scissors is a curve, the shape does not match the grinding surface and the twist is crushed. However, if the line AB at the top of the grinding surface is short, that is, if the width of the grinding surface is narrow, It becomes a shape that can approximately correspond to the short section of, and it becomes possible to match the grinding surface and the back blade with a twist well. (See FIG. 10 (c)). Therefore, between the curved grinding surface of the grinding tool with a predetermined narrow width and the pressing roller of the scissors pressing frame, the scissors with the back edge facing the grinding surface side, the scissors center line is the grinding surface circumferential direction. When sandwiching the scissors so that it is at a right angle to the reference line tilted from, and pulling the scissors forward along this line while pressing it with the press roller of the scissor press frame, the grinding surface is guided by the press roller only in the pull direction. The scissors pressed against
Change the direction little by little in accordance with the twist and bring the back blade into contact with the grinding surface, and evenly apply the blade line and scissors back to the grinding surface at the grinding surface contact portion of the back blade to perform polishing while ensuring the correct clearance angle. . After the scissors have been pulled until the cutting edge comes off the grinding surface, the scissors are again sandwiched between the grinding surface and the pressing roller, and the above-described operation is performed. When the operation of pulling the scissors between the polishing surface and the pressing roller is repeated several times, the back blade is sufficiently polished and the polishing is completed. Depending on the type of scissors, the polishing tool used for polishing may be replaced with one having different width dimensions of the polishing surface, curvature of curvature, and polishing surface roughness.

The structure in which the polishing surface of the polishing tool is a horizontal plane is as follows:
It is mainly used when there is almost no change in clearance angle such as new scissors and only a small amount of polishing is required. In this configuration, similarly to the above, between the polishing surface of the polishing tool and the pressing roller, the scissors with the back blade facing the polishing surface side are arranged such that the center line thereof is perpendicular to the reference line inclined from the polishing surface longitudinal direction. Insert in the state, and pull in the direction of the center line while pressing the scissor holding frame. The scissors are pressed against the grinding surface while being guided only in the pulling direction by the presser roller, gradually changing the direction according to the twist to bring the back blade into contact with the grinding surface, and the blade line and the scissors at the grinding surface contact portion of the back blade. The spine is applied to the polishing surface and the clearance angle is polished. When the operation of pulling the scissors by sandwiching the scissors between the polishing surface and the pressing roller is performed once or twice, polishing of the back blade is completed.

In the construction in which the polishing surface of the polishing tool is formed by bonding the polishing sheet to the polishing tool body, before polishing the scissors, the polishing sheet having the polishing surface roughness suitable for the scissors to be polished is bonded to the polishing tool. . After that, the operation of sandwiching the scissors between the pressing roller and the polishing surface of the polishing tool and pulling it is repeated several times to polish the back blade. When sharpening different types of scissors or when the abrasive surface becomes worn, remove the polishing sheet and replace with another polishing sheet.
As the polishing sheet, sandpaper or ceramic polishing paper is mainly used.

A guide rail is provided on the scissor holding frame, and
In the configuration where the polishing tool is provided with multiple guide grooves and the guide rail and the guide groove are engaged, the scissor holding frame is combined with the polishing tool while the guide rail of the scissor holding frame is aligned with the guide groove of the polishing tool, and the holding roller and the grinding roller Insert the scissors between the faces. The back edge can be polished by repeating the operation of pinching the scissors several times. If the polishing is repeated many times, the abrasive surface will wear and the shape will change, which will adversely affect the polishing of the back edge.Therefore, change the scissor holding frame according to the multiple guide grooves of the polishing tool and change the position of the abrasive surface to be used. Make sure the back blade is always sharpened accurately. The positional relationship between the press roller of the scissor press frame and the grinding surface is constant even if the guide groove changes, and the center line of the scissors is aligned so that it is at a right angle to the reference line at the position between the press roller and the grinding surface. While sandwiching the scissors, repeat the pulling operation to polish the back blade.

With the structure in which the outer peripheral surface of the press roller is covered with an elastic body, when the scissor holding frame is pressed by sandwiching the scissors between the press roller and the grinding surface, the elasticity of the outer circumference of the press roller ensures surface contact between the press roller and the scissors. Touch. When the scissors are pulled toward you in this state, the scissors are guided by the pressing roller so as not to move in any direction other than the pulling direction, and the shearing of the scissors is prevented, so that the contact between the back blade and the grinding surface is performed more appropriately. A material such as rubber or vinyl resin is mainly used as the elastic body that covers the outer circumference of the pressing roller.

In the construction in which the guide line for aligning the blade line of the scissors with the pedestal is provided, when the scissors are sandwiched between the pressing roller and the grinding surface,
Insert it with the direction of the scissors blade line aligned with the guide line. While holding the scissors with the presser roller, pulling the scissors so that the blade line is always parallel to the guide line, it is possible to carry out correct polishing while easily maintaining the correct positional relationship between the scissors back blade and the grinding surface.

[0011]

An embodiment of the present invention will be described with reference to the drawings.
In the present embodiment, using a replaceable ceramic polishing paper on the polishing surface, the scissor holding frame is provided with a guide rail and a plurality of guide grooves are provided on the polishing tool, and the pressing roller is covered with vinyl resin.
Furthermore, this is an example in which a total of three types of polishing tools can be exchanged: two types of polishing tools having curved upper surfaces and different curvatures, and a type having a horizontal flat surface. 1 is a plan view showing an embodiment, FIG. 2 is a front view showing the embodiment, FIG. 3 is a side view showing the embodiment, FIG. 4 is a sectional view taken along line AA of FIG. 1, and FIG. B
Sectional drawing, FIG. 6 is a front view showing a polishing tool for a horizontal grinding surface of an embodiment, FIG. 7 is a front view showing a grinding tool for a 250 mm radius curved grinding surface of an embodiment, and FIG. 8 is a 150 mm radius grinding grinding surface of an embodiment. 9 is a front view showing the polishing tool of FIG. 9, FIG. 9 is an explanatory view showing a scissor polishing operation of the embodiment, FIG. 10 is an explanatory view showing a structure of a polishing surface of the embodiment, and FIG. 11 is an explanatory view showing scissors for hairdressing and beauty. FIG. 12 is an explanatory view showing the cross-sectional shape of the scissors at each blade line position.

The polishing apparatus 1 of the present embodiment comprises a back blade 1 of scissors 13.
A polishing tool 4 having a polishing surface 5 for sharpening 6 is removably attached to a fixed frame 3 portion on a pedestal 2. The polishing surface 5 on the upper surface of the polishing tool 4 is configured such that the ceramic polishing paper 7 is detachably attached to the polishing tool 4. Polishing tool 4
Is a curved surface with an arcuate upper surface, and its center axis direction is 13 m
It has a long and narrow curved surface with a width of about m and makes shallow contact with the back blade 16 so that the polishing amount does not increase.
There are three types: 150 mm, which is sufficiently larger than the concave radius of 8, the arc radius of 250 mm, which further reduces the polishing amount, and the horizontal flat surface, which has a width of about 13 mm and has the smallest polishing amount. . Each of the polishing tools 4 has a common front, rear, left, and right width, and can be replaced in the fixed frame 3. The polishing tool 4 attached to the fixed frame 3 is combined with the scissor holding frame 8 for pressing the scissors 13 against the grinding surface 5 while being mounted on the polishing tool 4. The scissors holding frame 8 has an outer periphery which is rotatable about an axis parallel to a reference line 21 inclined 4 ° to the right with respect to the circumferential direction or the longitudinal direction X of the arc of the grinding surface 5 of the combined polishing tool 4. A roller 9 covered with a vinyl resin 9a is attached to the polishing tool 4, and a guide rail 10 and a guide plate 11 for accurately maintaining the position of the roller 9 with respect to the polishing surface 5 when sandwiching the polishing tool 4 are combined. It is provided in. On the other hand, the polishing tool 4 is engaged with the guide rail 10 of the scissor press frame 8 so that the roller 9 of the combined scissor press frame 8 can move up and down in the normal direction of the grinding surface 5, so that the scissor press frame 8 is engaged. Four guide grooves 6 which can slide up and down are provided on the front surface of the polishing tool 4. The ceramic polishing paper 7 used for the polishing surface 5 on the polishing tool 4 has a roughness of # 350 to # 100.
0 for rough polishing and # 2000 to # 4000 for medium polishing,
There are three types of finishing polishes, # 4000 to # 6000, which can be attached to the polishing tool 4 of any shape. Further, on the pedestal 2, the scissors center line 20 of the scissors 13 is tilted 4 ° to the right from the circumferential direction of the grinding surface 5 or the longitudinal direction X, as a guide when setting and polishing the scissors 13. Baseline 21
Blade line guide 12 with a plurality of guide lines 12a drawn parallel to the blade line 14 of the scissors 13 when aligned so as to be perpendicular to
Is provided.

The method of using the polishing apparatus 1 of this embodiment is to sharpen a new scissor or properly adjusted scissors, and to re-sharp a scissor whose twist is hard to be broken by continuing to sharpen by a conventional polishing method. The procedure differs slightly depending on the case. In the case of sharpening the new scissors 13 and the like, first, the ceramic polishing paper 7 for finish polishing is attached to the polishing tool 4 serving as a horizontal polishing surface, and then the polishing tool 4 is attached to the fixed frame 3 of the pedestal 2.
The scissors holding frame 8 is combined with the attached polishing tool 4 while aligning any of the guide grooves 6 on the side surface of the polishing tool 4 with the guide rail 10. At the same time, between the grinding surface 5 of the polishing tool 4 and the roller 9 of the scissors holding frame 8, the scissors 13 with the back blade 16 directed toward the grinding surface 5 is provided, in which the blade line 14 is along the reference line 12a, that is, The grinding surface 5 is sandwiched in a state where the scissors center line 20 of the scissors 13 is aligned in a direction perpendicular to the reference line 21 which is inclined 4 ° to the right from the longitudinal direction X of the grinding surface 5.
With the scissors holding frame 8 pressed and the scissors 13 pressed against the grinding surface 5 by the rollers 9, the scissors 13 are pulled forward while the blade line 14 of the scissors 13 is parallel to the reference line 12a.
The back edge 16 of the scissors 13 comes into contact with the grinding surface 5 while being guided by the roller 9 so that the upper surface comes into contact with the surface and does not move in any direction other than this direction. Since the width of the grinding surface 5 is as narrow as around 13 mm, the back blade 16 is not affected by the twisting of the back blade 16 by the gutter bottom 18.
Blade line 14 and scissors spine 13b from blade line source 14a to blade line tip 1
Up to 4c, the grinding surface 5 can always be uniformly applied to be ground in a state where a correct clearance angle θ can be obtained. If you pull the scissors 13 and pass it all between the roller 9 and the grinding surface 5 up to the blade tip 14c, normally,
The polishing work is completed. If you need a little polishing,
Similar to the above, the scissors 13 are again sandwiched between the roller 9 and the grinding surface 5 and pulled to sharpen. This is the back blade 16 of the scissors 13
Is properly polished to a shape with a correct clearance angle θ, and polishing is completed.

In the latter case, in the case of re-sharpening the scissors 13 which have been difficult to be sharpened by continuing to sharpen by the conventional method, first, the ceramic sanding paper 7 for rough sharpening is attached to the polishing tool 4 having an arc radius of 150 mm on the upper surface, The polishing tool 4 is attached to the fixed frame 3 of the base 2. At the same time as the scissors holding frame 8 is combined with the polishing tool 4 as described above, the scissors 13 are sandwiched between the polishing surface 5 and the roller 9. When the scissors 13 are pulled while holding the scissors holding frame 8 as in the case described above, the arcuate grinding surface 5 comes into deeper contact with the back blade 16 than in the case of a horizontal grinding surface, and the twist is slightly crushed and widened. The back blade 16 in the bladed state is roughly sharpened to correct the shape.
Repeat the above operation several times to correct the previous blade attachment, stop polishing, remove the scissors 13, and also remove the scissors holding frame 8.
The polishing tool 4 is replaced with a polishing tool 4 having an arc radius of 250 mm to which a ceramic polishing paper 7 for medium polishing is attached. After the replacement, the polishing is repeated several times by the same procedure, and the medium polishing is performed until the surface roughness after polishing with the radius of 150 mm disappears. When the medium polishing is sufficiently completed, the polishing is stopped again, the scissors 13 and the scissor holding frame 8 are removed, and the polishing tool 4 is replaced with the polishing tool 4 having the horizontal polishing surface on which the ceramic polishing paper 7 for finish polishing is attached. After that, as in the case of new scissors, polishing is performed once or twice to finish the back blade 16 having the correct clearance angle θ from the blade line root 14a to the blade line tip 14c, and the polishing is completed.

In the polishing apparatus 1 of this embodiment, since the guide grooves 6 on the front surface of the polishing tool 4 are provided at four locations, the scissors holding frame 8 is provided.
By changing the polishing position on the polishing surface 5 by moving the combination position of
The ceramic polishing paper 7 worn by polishing can be used more effectively. Since the guide groove 6 is set so that the scissor holding frame 8 always maintains the same posture with respect to the curved surface or the horizontal grinding surface 5, the same polishing can be performed even if the combined position of the scissor holding frame 8 is moved. When the ceramic polishing paper 7 is worn at all the positions, it is removed from the polishing tool 4 and replaced with a new ceramic polishing paper 7 of the same type. In this embodiment, the ceramic polishing paper 7 is attached to the polishing tool 4 by using an adhesive having a property that an operator can easily peel it off.
Further, the present embodiment may be configured such that the pedestal 2 is provided with a portion for accommodating such a replacement for the ceramic polishing paper 7 or the polishing tool 4 so that it can be immediately taken out and replaced.

In this embodiment, if care is taken so that wear is not unevenly distributed on the polishing surface 5 of the polishing tool 4, the polishing tool 4 fixed to the base 2 is not combined with the scissor holding frame 8, and the scissors 13 are used. It is also possible to apply the same to the polishing surface 5 and polish it to make a slight correction of the shape of the back blade 16 or to slightly adjust the contact surface of the scissors 13 around the screw hole 17.

[0017]

According to the present invention, by adopting the above-mentioned structure, the back blade can be ground into the correct shape only by repeating the operation of correctly aligning the scissors and pulling the scissors, so that the workability is good and anyone can work. Correct back edge polishing can be done easily and quickly, and polishing work can be done in a short time, greatly improving work efficiency.

If the polishing surface of the polishing tool is formed by attaching the polishing sheet to the polishing tool body so that it can be replaced, a single polishing tool can be used with various roughness surfaces and the scissors can be used for polishing. Even if the surface becomes worn and cannot be used, only the attached polishing sheet needs to be replaced, and the polishing operation can be performed at a lower cost.

A guide rail is provided on the scissor holding frame, and
Adopting a structure in which a plurality of guide grooves are provided on the polishing tool and the scissor holding frame can be slid up and down by the engagement of the guide rail and the guide groove, the position of the polishing surface used for polishing can be easily changed to make the polishing surface effective. Can be used for a long time, and can be used economically for a long time, and the trouble of replacement can be reduced, and the cost and labor of polishing work can be reduced.

In the structure in which the outer peripheral surface of the presser roller is covered with the elastic body, the closeness of contact between the presser roller and the scissors is increased, and the scissors cannot move in any direction other than the pulling direction, and the operation of carefully pulling the contact between the scissors back blade and the grindstone is required. Without doing so, it makes polishing work easier and faster. Further, the outer peripheral surface of the pressing roller can flexibly contact the scissors, and the scissors are not damaged.

By adopting a construction in which a guide line for aligning the scissors blade line with the pedestal is provided, the scissors can be easily polished in the correct posture by aligning the scissors blade line with the guide line, resulting in good workability. As a result, the polishing work time can be further shortened.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment.

FIG. 2 is a front view showing an example.

FIG. 3 is a side view showing an example.

FIG. 4 is a cross-sectional view taken along the line AA of FIG.

FIG. 5 is a sectional view taken along line BB of FIG. 2;

FIG. 6 is a front view showing a polishing tool having a horizontal polishing surface according to an embodiment.

FIG. 7 is a front view showing a polishing tool having a curved abrasive surface with a radius of 250 mm in an example.

FIG. 8 is a front view showing a polishing tool having a 150 mm radius curved abrasive surface according to an embodiment.

FIG. 9 is an explanatory view showing a scissor polishing operation of the embodiment.

FIG. 10 is an explanatory view showing the structure of the polishing surface of the example.

FIG. 11 is an explanatory view showing scissors for beauty and beauty.

FIG. 12 is an explanatory view showing a cross-sectional shape of the scissors at each blade line position.

[Explanation of symbols]

 1 Polishing Device 2 Pedestal 3 Fixed Frame 4 Polishing Tool 5 Abrasive Surface 5a Abrasive Surface Width Axis 5b Abrasive Surface Longitudinal Axis 6 Guide Groove 7 Ceramic Abrasive Paper 8 Scissors Holding Frame 9 Roller 9a Vinyl Resin 10 Guide Rail 11 Guide Plate 12 Blade Line guide 12a Reference line 13 Scissors 13a Scissors tip 13b Scissors spine 14 Blade line 14a Blade line source 14b Blade line inside 14c Blade line tip 15 Front blade 16 Back blade 17 Screw hole 18 Gutter bottom 19 Gutter center line 20 Scissor center line 21 Base line

Claims (6)

[Claims] 1. A polishing tool having an abrasive surface, which has a curved surface of an elongated arc shape having a predetermined width and is provided on the upper surface, is removably attached to a pedestal, and a scissor holding frame is attached to the polishing tool in a direction normal to the polishing surface. Vertically slidable and detachably attached to the scissors holding frame, which is on the tangent plane of the grinding surface that is perpendicular to the vertical sliding direction of the scissors holding frame, and the scissors center line of the scissors and the gutter bottom center line of the back blade. ± of the average opening angle of
A scissors back blade polishing device in which a scissors holding roller is rotatably attached to a scissors holding frame at a position above the grinding surface around an axis parallel to a reference line inclined from the circumferential direction of the grinding surface within an angle range of 1 °. . 2. A polishing tool having an elongated rectangular horizontal flat grinding surface having a predetermined width provided on the upper surface is removably attached to a pedestal, and a scissor holding frame is vertically mounted on the grinding tool in a direction normal to the grinding surface. It is slidably and detachably attached, and it is on the polishing surface and is to be ground ± The average opening angle between the scissors center line and the back gutter bottom center line
A scissors back blade polishing device in which a scissors holding roller is rotatably attached to a scissors holding frame at a position above the grinding surface about an axis parallel to a reference line inclined from the longitudinal direction of the grinding surface within an angle range of 1 °. . 3. The polishing surface of the polishing tool is formed by removably bonding a polishing sheet to the upper surface of the polishing tool body.
Alternatively, the scissors back blade polishing apparatus according to 2. 4. The scissor holding frame is provided with a guide rail, the polishing tool is provided with a plurality of guide grooves, and the scissor holding frame is moved in a direction normal to a grinding surface of the polishing tool by engaging the guide rails with the guide grooves. The scissors back blade polishing device according to any one of claims 1 to 3, which is vertically slidable. 5. The scissors back blade polishing apparatus according to claim 1, wherein an outer peripheral surface of the pressing roller is covered with an elastic body having a uniform thickness. 6. The pedestal is a guide line parallel to the blade line of the scissors when the scissors center line is aligned at right angles to the reference line, the guide line being a guide for the position where the scissors are placed and the direction in which the scissors are pulled. The scissors back blade polishing device according to any one of claims 1 to 5, wherein a plurality of scissors back blade polishing devices are provided.