KR101718990B1

KR101718990B1 - Electromotion grinder

Info

Publication number: KR101718990B1
Application number: KR1020150083157A
Authority: KR
Inventors: 이승준
Original assignee: 이승준
Priority date: 2015-06-12
Filing date: 2015-06-12
Publication date: 2017-03-22
Also published as: KR20160146208A

Abstract

The present invention relates to a motor-driven knurling machine, and more particularly, to a motor-driven knurling machine in which a guide portion provided with guide grooves is protruded and formed on both sides of a case on which a grinding stone is installed, The knife edge of the knife was precisely introduced by minimizing the clearance at the abrasive point so that the blade can be accurately set up.

Description

ELECTROMOTION GRINDER

More particularly, the present invention relates to a motor-operated knurling machine, and more particularly, to a motor-operated knurling machine, which is capable of performing a knurling operation on both sides by arranging a grinding stone in a longitudinal direction, The present invention relates to an electric knife having a guide portion for accurately cutting a blade by using a grinding stone.

In general, calgary is used to sharpen the knife blade of a knitted knife. It is a manual knife that uses a grinding wheel to build up a blade of a knife and an electric knife that builds a blade by using a rotating grinding stone do.

In the manual curl, the worker moves the knife upward and downward in a state in which the grindstone is inclined and erects a blunt knife, so that the operator directly grasps the knife and sharpens the blunt blade, It is not easy for ordinary people who are not skilled workers to build a blunt blade using a grindstone.

In order to solve such a problem, the invention was invented such as the registered utility model No. 280293.

As shown in FIGS. 7 and 8, the motor-operated calgary is formed with a case 10 having an inlet and an outlet at the top, and a shaft 21 rotated by a power source supplied from the outside is provided inside the case 10 A motor 20 is installed.

A shaft 21a is provided in the case 10 so as to be spaced apart from the shaft 21 connected to the motor 20 and the shaft 21 and the shaft 21a are engaged with the interlocking gear 22 And the shafts 21 and 21a are rotated in opposite directions to each other by receiving the rotational force of the motor 20.

Since the grinding stones 30 and 30a are axially disposed on the shafts 21 and 21a which are rotated in opposite directions to receive the rotational force of the motor 20 as described above, 21a are rotated in directions opposite to each other in accordance with the direction in which the knives 20a and 21a are rotated to sharpen the knife blade 201 of the kneaded knife 200 which has entered between the grinding stones 30 and 30a as shown in FIG.

That is, the pair of grinding stones 30 and 30a are formed in the shafts 21 and 21a such that the grinding point P is formed, and the blade 201, which is made to contact the grinding point P, The grinding stone 30 and the blade 201 are frictioned with each other to sharpen the blunt blade 201 when the grinding stone 30 and 30a are inserted between the grinding stones 30 and 30a as shown in FIG.

However, the problem with the conventional electric-type knurl is that since the guide of the knife blade is one, the gap of the guide can only be manufactured on the basis of the thick knife thickness (it is impossible to enter a thick knife with a thin knife) The knife blade 201 of the kneaded knife 200 can not be sharpened because the knife can not accurately enter the grinding point P of the grinding stone 30 or 30a vertically when the knife is swung to the left or right at the time of entry. .

That is, the knife blade 201 of the kneaded knife 200 must be vertically erected perpendicular to the abrasive point P formed between the pair of the abrasive stones 30 and 30a, and since the guide is one, So that the gap between the guide grooves can not be increased. Therefore, the blade having a thin thickness is shaken to the left and right due to the large gap, so that the blade 201 can not enter the grinding point P accurately, The blade 201 is brought into contact with the abrasive stone 30 or 30a due to the contact of the blade 201 with the abrasive stone 30 or 30a only on one side of the blade 201, And the blade 201 can not accurately be formed.

When the blunt knife 200 is strongly entered into the grinding point P formed between the pair of grinding stones 30 and 30a, the blade 201 of the knife 200 is moved between the grinding stones 30 and 30a And the blade 201 is damaged.

Therefore, in order to solve the above-described problems, the present invention is configured to arrange the grinding stones in the longitudinal direction so as to carry out the grinding operation to both sides, and to grind the blades of the grinding stone, Since the guides provided with the guide grooves are protruded from both sides of the case provided with the grindstones, the blades of the blades knitted by the guide portions can be accurately entered into the grinding point with the minimum clearance according to the thickness of the blade The knife blade can be made straight and the knife having a thick knife and the knife made thin can be sharpened with a single knife by forming the guide grooves formed on both sides of the case differently from each other, On both sides of the case, the blade of the knife, which enters through the guide portion, But the blade can be prevented from being broken by sandwiched between the grinding stones. In addition, it is possible to prevent the blade from protruding to the side of the case by the elevating means So that even when the abrasive grains are worn, the abrasive grains are allowed to enter the abrading point by the thickness of the abraded abrasive grains so that the blades can be erected.

According to an aspect of the present invention,

Wherein the case is provided with a grindstone which is rotated in opposite directions to receive a rotational force of the motor, the grindstones being installed in the longitudinal direction,

And a guide portion guiding according to the thickness of the knife is provided so as to be positioned in front of the abrasive point so as to accurately enter the abrasive point formed in the abrasive stone.

According to the present invention, since the guide portion provided with the guide grooves is protruded and formed on both sides of the case on which the grinding stone is installed so that the blade of the knife can be precisely entered into the abrasive point portion where the grinding stone intersects, It is possible to expect the effect that the knife blade can be accurately entered into the abrasive point and the blade can be set straight.

Further, the guide grooves formed on both side surfaces of the case may be formed to have different intervals, and the knife having a thick thickness and the knife having a thin thickness may be sharpened with a single knife.

In addition, on both sides of the case, a support portion for supporting the blade so that the blade of the blade entering through the guide portion only reaches the abrasion point is formed symmetrically on both sides of the case so that the blade can be prevented from being broken between the grinding stones It is possible to adjust the protruding height of the pedestal projected on both side surfaces of the case by the elevating means so that even if the grinding stone is worn, the effect can be obtained that the edged blade is allowed to enter the grinding point by the thickness of the worn- It is.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view of an electric-
2 is a cross-sectional perspective view of the electric calf of the present invention.
FIGS. 3 and 4 are cross-sectional views of a motor-operated callegro of the present invention.
5 is a sectional view showing a state in which the support portion is operated by the elevating means of the present invention.
6 is a cross-sectional view of the claws of the present invention.
Figs. 7 and 8 are cross-sectional views showing a conventional claw. Fig.

A preferred embodiment of the present invention will be described with reference to FIGS. 1 to 6. FIG.

Prior to the description of the present invention, the same reference numerals are used for the same components as those of the prior art, and the description of the same reference numerals will be omitted.

According to the drawings,

In the case 100, a grinding stone 110 (110a) which is rotated in opposite directions to receive the rotational force of the motor 20 is installed in the longitudinal direction,

The guide part 120 guiding according to the thickness of the knife 200 is provided so as to be positioned in front of the grinding point P so as to accurately enter the grinding point P formed on the grinding stone 100 .

1, the guide unit 120 includes a body part 121 symmetrically up and down with respect to a polishing point P so as to guide the blade 210 of the kneaded knife 200 between the body parts 121, The inclined surface 122 is inclined downwardly in the guide groove 120a and the guide surface 120a is formed at the end of the inclined surface 122 123 are horizontally formed.

The knife 200 having the kneaded blade 201 is guided by the guide part 120 along the inclined part 122 formed at the end of the guide surface 123 on one side of the body part 121 One side of the knife 200 is introduced into the guide surface 123 while being in contact with the inclined surface 122 and the blade 201 of the introduced knife 200 is guided by the horizontally formed guide surface 120 The blade 200 can be brought into contact with both sides of the blade 200 to reach the polishing point P.

3, the knife 200 enters the polishing point P while maintaining the same horizontal state as the polishing point P, so that only one side of the blade 201 is polished at the polishing point P So that it is possible to prevent a phenomenon of being intertwined.

Since the intervals D1 and D2 of the guide grooves 120a formed between the body portions 121 are different from each other, as shown in FIG. 2, a knife having a thick knife and a thin knife It is possible to sharpen the blade 201 by using the curl.

That is, as shown in FIG. 3, the distance D1 between the guide grooves 120a formed on the right side of the drawing is larger than the distance D2 between the guide grooves 120a formed on the left side in the drawing, As shown in FIG. 4, a knife having a thick thickness can be introduced into the groove 120a to reach the polishing point P, and the kneaded blade 201 can be set up. In the guide groove 120a formed on the left side in the drawing, And the knife blade 201 can be set up by entering the manufactured small knife up to the polishing point P. [

A support part 130 for supporting the blade 201 of the knife 200 entering through the guide part 120 to reach the polishing point P is protruded symmetrically on both sides of the case 100.

Further, the elevating means 140 is provided to adjust the projecting height of the receiving portion 130 by the worn thickness of the grinding stone 110 (11a).

In this way, a support portion 130 is formed on both sides of the case 100 on which the guide portion 120 is formed to allow the kneaded blade 201 to enter the grinding point P, 110) 110a to be prevented from being broken.

5, the moving unit 150 having the moving groove 151 is formed in the case 10, and the moving unit 150 (see FIG. 5) The nut 152 is engaged.

The end of the bolt 160 is rotatably coupled to the nut 152 by rotating the receiving part 130 coupled with the bolt 160.

Accordingly, when the bolt 160 coupled to the nut 152 is rotated as the receiving unit 130 is rotated or the bolt 160 coupled to the receiving unit 130 is rotated, the receiving unit 130 is rotated, The grinding stones 110 and 110a are moved between the moving grooves 151 of the grinding wheel 150 to move the projecting height of the grinding stone 130 by the worn thickness.

The preferred operating conditions and effects of the present invention thus combined are as follows.

First, the switch 170 formed on the upper surface of the case 100 is turned on to rotate the motor 20 installed inside the case 100.

As the motor 20 rotates, a pair of shafts 21 and 21a installed in the case 100 are rotated in opposite directions due to the interlocking gear 22, And rotates the axially-formed grinding stones 110 and 110a in directions opposite to each other.

When the grinding stones 110 and 110a are rotated in opposite directions to each other, the knife 200 having the blades 201 is moved into the body part 121 formed in the guide part 120.

At this time, since the inclined surface 122 having the guide surface 123 is formed on one side of the body portion 121 of the facing guide unit 120, the knife 200 is inclined from the upper side to the lower side, The knife 200 can be sequentially brought into contact with the inclined surface 122 and the guide surface 123 and can enter the polishing point P while keeping the same horizontal state as the polishing point P. [

Therefore, the blunt blade 201 can be straightened.

The blade 201 which has reached the grinding point P is brought into close contact with the receiving portion 130 formed on both sides of the case 100 so that the blade 201 is caught between the grinding stones 110 and 110a and is broken .

5 (b) due to friction between the grinding stone 110 and the blade 201, when the grinding stone 110 and the grinding stone 110a are worn, Thereby rotating the bolt 160 in one direction.

The receiving portion 130 flows into the moving groove 151 of the moving portion 150 as shown in FIG. 5 (b) in accordance with the rotation of the receiving portion 130 to the bolt 160, The blade 201 supported by the support part 130 can enter the abrasive point P at which the abrasive stone 110 or 110a intersects with the abrasive grains 110 and 11a, The blunt blade 201 can be sharpened regardless.

10: Case,
20: motor, 21, 21a: shaft,
22: interlocking gear, 30, 30a:
100: case, 110, 110a:
120: guide portion, 120a: guide groove,
121: body portion, 122: inclined surface,
123: guide surface, 130:
140: elevating means, 150: moving portion,
151: moving groove, 152: nut,
160: bolt, 170: switch,

Claims

In the case 100, a grinding stone 110 (110a) which is rotated in opposite directions to receive the rotational force of the motor 20 is installed in the longitudinal direction,
The guide part 120 guiding according to the thickness of the knife 200 is provided so as to be positioned in front of the polishing point P so as to accurately enter the grinding point P formed on the grinding stone 100,
A support portion 130 for supporting the blade 201 of the knife 200 entering through the guide portion 120 to reach the polishing point P is protruded symmetrically on both sides of the case 100,
The receiving unit 130 includes:
A moving part 150 having moving grooves 151 is formed on both sides of the case 100,
The receiving unit 130 is coupled to the inside of the moving unit 150 so as to protrude from both sides of the case 100,
The elevating means 140 is further provided to allow the receiving portion 130 to flow into the moving groove 151 of the moving portion 150 by the thickness of the abrasive stone 110 or 110a,
The elevating means (140)
A nut 152 is fixedly coupled to the inside of the moving groove 151,
And a bolt (160) screwed to the nut (152) is coupled to the receiving portion (130).

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