KR101619496B1

KR101619496B1 - Saw sharpning machine

Info

Publication number: KR101619496B1
Application number: KR1020150122018A
Authority: KR
Inventors: 임오빈; 최재원
Original assignee: 주식회사 서진기업
Priority date: 2015-08-28
Filing date: 2015-08-28
Publication date: 2016-05-10

Abstract

A saw blade grinding machine according to an embodiment includes: a motor interlocked with a cam; A cam connected to one end of the motor and having a through hole biased from the center; A grinding line connected to the other end of the motor and configured to form a saw blade on an outer circumference of a circular plate that rotates about a rotation axis; A circular gear interlocking with the rotation of the cam; An oscillating part connected to the circular gear and reciprocatingly reciprocating by a rotational motion of the cam within a predetermined angle range; An extension connected to the other side of the oscillating portion; And a latch portion connected to the extension portion and rotating the circular plate.

Description

[0001] SAW SHARPING MACHINE [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a saw blade grinding machine, and more particularly, to a saw blade grinder capable of automatically forming a saw blade shape on an outer circumference of a circular plate for cutting a workpiece such as a steel material.

Conventionally, a circular saw blade is composed of a copper plate saw for cutting a crystal light metal, which has grooves having a depth of about 0.5 to 1.5 mm at regular intervals on the outer peripheral face of a circular copper plate and stirring and mixing the polishing fine powder with a bonding agent. That is, generally, a circular saw blade for cutting stone or the like is produced by mixing and stirring with additives such as cobalt, copper powder, stones, nickel, iron powder, etc. through cold press, hot press, dressing, polishing, have.

Thus, in the conventional circular saw blade method, the powder is drawn by a circular cutter while press-molding the powder into a mold, and the cutter is rotated through the circular saw blade thus manufactured to be used for grinding and cutting wood, And cut into a predetermined length so as to be processed into a desired shape.

However, the conventional circular saw blade method had to undergo complicated steps such as mixing and stirring with additives such as cobalt, copper powder, abrasive powder, nickel, and iron powder, cold pressing, hot pressing, polishing, inner diameter working and painting. Therefore, various mechanical devices are required for each step, so that the manufacturing cost is increased, a lot of manpower is required, and the manufacturing time is long.

Korean Patent Laid-Open Publication No. 2001-0075949 (published on Aug. 11, 2001)

It is an object of the present invention to provide a saw blade grinding machine capable of forming a saw blade on the outer circumference of a circular plate by only one step.

It is also an object of the present invention to provide a saw blade grinding machine capable of adjusting the number of saw blades formed on the outer circumference of a circular plate.

It is also an object of the present invention to provide a saw blade grinder capable of forming a saw blade having No. 1 and No. 2 grinding wheels.

It is another object of the present invention to provide a saw blade grinding machine capable of increasing the service life of a saw blade.

Here, the cam is composed of a first cam and a second cam arranged vertically and rotating in one direction, the first cam being in contact with the outer circumference of the fixed gear, and the second cam being in contact with the outer circumference of the circular gear .

Here, a speed reducer is connected to one end of the motor and the wire is connected to the other end, and the cam is decelerated by the speed reducer and rotated.

The depth of the saw blade formed on the outer periphery of the circular plate can be adjusted according to the deflection position of the through hole of the cam.

Wherein the cam is composed of a first cam and a second cam which are arranged vertically and rotate in one direction, and the engagement portion rotates the circular plate according to the deflection rotation of the second cam, The slider can be moved closer to or away from the circular plate by a movement of the motor that is oscillated within a predetermined angle range.

Here, the saw blade formed on the circular plate by the first cam and the second cam may be formed in a shape having two arcs.

Here, the thickness of the saw blade formed by the saw blade grinding machine may be equal to the thickness of the circular plate.

Here, the manual brake may further include a manual brake to prevent the grip line from physically contacting the circular plate.

The apparatus may further include a rail bar formed below the circular plate and horizontally moving the circular plate.

According to the saw blade grinding machine in accordance with the embodiment of the present invention, as in the conventional circular saw blasting method, mixing and stirring with additives such as cobalt, copper powder, abrasive, nickel, iron powder, cold pressing, hot pressing, polishing, It is possible to form the saw blade on the outer circumference of the circular plate without having to go through complicated steps.

According to the saw blade grinding machine according to the embodiment, it is possible to rotate the glue line and the cam by using one motor, and the rotation speed of the cam can be adjusted by using the speed reducer.

According to the saw blade grinding machine according to the embodiment, the predetermined angle of the drive portion and the predetermined angle of the latch portion can be determined by using the cams having different through-hole deflection positions, thereby changing the shape of the saw blade formed on the outer circumference of the circular plate.

According to the saw blade grinding machine according to the embodiment, the saw blade formed on the circular plate can be formed into a shape having two arcs, and the first arc and the second arc can be simultaneously formed at a time, The manufacturing time can be reduced compared to the case where the step of forming No. 2 is performed separately.

According to the saw blade grinding machine according to the embodiment, since the thickness of the formed saw blade is equal to the thickness of the circular plate, the saw blade can be used for a long time.

The saw blade grinding machine according to the embodiment further includes a manual brake that prevents physical contact between the grinder and the circular plate, so that the saw blade grinder can be quickly and completely stopped when a failure or an emergency occurs.

According to the saw blade grinding machine according to the embodiment, since the circular plate supporting portion is further included, it is possible to prevent the separation of the circular plate, thereby preventing an accident.

According to the saw blade grinding machine according to the embodiment, since the rail bar is further included, the saw blade can be ground without any limit to the radius of the circular plate.

1A and 1B are perspective views of a saw blade grinding machine according to an embodiment.
2 is a plan view of the saw blade grinding machine according to the embodiment.
3 is an enlarged view for explaining the operation of the cam and the gear shown in Figs. 1 to 3. Fig.
4 is an enlarged view for explaining the latch portion shown in Figs. 1 to 3. Fig.
5 is a side view for explaining a circular plate supporting portion and a rail bar according to the embodiment.
6A and 6B are plan views for explaining the movement of the driving part and the latch part by the cam.
7A and 7B are enlarged views for explaining the operation of the latching portion of the latch portion according to the embodiment;
8A to 8C are enlarged views for explaining a process in which a saw blade is formed on a circular plate.
9 is an enlarged plan view of a circular plate on which a saw blade is formed by a saw blade grinding machine according to the embodiment.

The thickness and size of each layer in the drawings are exaggerated, omitted, or schematically shown for convenience and clarity of explanation. Also, the size of each component does not entirely reflect the actual size.

In the description of the embodiments according to the present invention, in the case where an element is described as being formed on "on or under" another element, the upper (upper) or lower (lower) (On or under) all include that the two elements are in direct contact with each other or that one or more other elements are indirectly formed between the two elements. Also, when expressed as "on or under", it may include not only an upward direction but also a downward direction with respect to one element.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a saw blade grinding machine according to an embodiment of the present invention will be described with reference to the accompanying drawings.

<Embodiment>

Figs. 1A and 1B are perspective views of a saw blade grinding machine according to an embodiment, and Fig. 2 is a plan view of a saw blade grinding machine according to an embodiment.

Referring to FIGS. 1A, 1B and 2, a saw blade grinder 10 according to an embodiment may include a support 100, a driving unit 200, and a latch unit 300.

The supporting table 100 includes a fixed gear 110 disposed at one upper end and a rotatable circular plate 50 spaced apart from the fixed gear 110 by a predetermined distance at the other upper end of the supporting table 100. [ . Here, the predetermined interval may be a sufficient distance such that the outer circumference of the circular plate 50 does not contact the fixed gear 110.

The driving unit 200 includes a motor 210 disposed to swing within a predetermined angle range at the upper end of the support 100, a cam 220 connected to one end of the motor 210, And a grinder 230 connected to the rotating shaft and rotating with respect to the rotating shaft.

The cam 220 is formed such that the through hole is deflected from the center. Here, the cam 220 may include various cams according to positions where the through holes are deviated from the center. Thus, the cam 220 can convert the rotational motion from the motor 210 into a linear motion that pushes the fixed gear 110. Since the fixed gear 110 is fixed to the support 100, when the cam 220 pushes the fixed gear 110, the cam 220 is pushed by the reaction force, Lt; / RTI > At this time, the glue line 230 is separated from the circular plate 50. Here, the predetermined angle is determined according to the deflection position of the through hole of the cam 220. Further, the cam 220 contacts the outer periphery of the fixed gear 110 and the circular gear 330 to be described later.

The grinder 230 is disposed perpendicularly to the circular plate 50 to grind the outer periphery of the circular plate 50 to form a saw blade on the outer periphery of the circular plate 50. The glue line 230 includes a material having a higher stiffness than the circular plate 50 to effectively form a saw blade on the circular plate 50.

The latch portion 300 includes a vertical portion 310 fixed to the support 100, a swinging portion 320 connected to the vertical portion 310 so as to rotate and reciprocate within a predetermined angle range, An extension part 340 connected to the other side of the oscillating part 320 and an engagement part 350 connected to an end part of the extension part to rotate the circular plate 50 .

The vertical portion 310 may be arranged to be fixed to the support 100 vertically by a circular column. The vertical portion 310 includes a material having rigidity to support the oscillating portion 320, the circular gear 330, the extending portion 340, and the latching portion 350.

The oscillating portion 320 can reciprocate in a predetermined angle range around the vertical portion 310. The swinging unit 320 may have an "'" shape as shown in FIG. 2, but is not limited thereto.

The circular gear 330 is fixed to one side of the oscillating portion 320. The circular gear 330 is interlocked with the rotation of the cam 220.

The extension 340 may be a plate-like shape having a sufficient length. At least one hole may be formed in the extension 340. The extension portion 340 is connected to the other side of the oscillating portion 320 and oscillates according to the rotational reciprocating motion of the oscillating portion 320. Here, the extension 340 and the swinging part 320 may be connected by separate elastic bodies.

The latching part 350 may be partially inserted into the hole formed at the end of the extending part 340, or may be connected to the extending part 340 so as to surround the extending part 340. At this time, the latching part 350 may be connected to any of the holes formed in the extending part 340 according to the radius of the circular plate 50. That is, the engaging portion 350 can be changed in position so as to be caught on the outer circumference of the circular plate 50. [ The locking part 350 may include a material having a large frictional force to rotate the circular plate 50. 1 and 2, if the saw blade is already formed on a part of the outer periphery of the circular plate 50, the end of the catching part 350 is formed so as to be caught by the saw blade formed on the outer circumferential edge of the circular plate 50 .

As described above, the saw blade grinding machine 10 according to the embodiment is capable of performing the mixing and stirring step with additives such as cobalt, copper powder, abrasive, nickel, iron powder, cold press step, hot press step, It is possible to form a saw blade on the outer circumference of the circular plate 50 without complicated steps such as a step and a painting step.

3 is an enlarged view for explaining the operation of the cam and the gear shown in Figs. 1 to 3. Fig.

1 to 3, the cam 220 of the saw blade grinder 10 according to the embodiment may include a first cam 221 and a second cam 223 arranged in the vertical direction. Specifically, the through-hole of the first cam 221 and the through-hole of the second cam 223 rotate in the same direction on the same axis. The first cam 221 is in contact with the outer periphery of the fixed gear 110 and the second cam 223 is in contact with the outer periphery of the circular gear 330. Since the through holes of the first cam 221 are formed so as to be deflected from the center in a state where the fixed gear 110 is fixed to the support base 100, the first cam 221 and the second cam 223 The through hole of the first cam 221 is pivoted according to the position deviated from the center. The second cam 223 applies a pushing force to the circular gear 330 by the rocking motion.

Here, the motor 210 may be a motor that rotates to one side. In this case, a speed reducer 240 is connected to one end of the motor 210, and a gline feeder 230 is connected to the other end of the motor 210. The first cam 221 and the second cam 223, (240). Therefore, the first cam 221 and the second cam 223 can be decelerated by the speed reducer 240 and rotated. That is, the rotation amount per second of the glue line 230 and the rotation amount per second of the first cam 221 and the second cam 223 may be different.

As described above, the saw blade grinding machine 10 according to the embodiment can grind the saw blade more precisely including the first cam 221 and the second cam 223, and when a single cam breakdown occurs, It is possible to replace the cam only with the cam.

The saw blade grinding machine 10 according to the embodiment can rotate the grinder 230 and the first cam 221 and the second cam 223 using a single motor and uses the reducer 240 The rotational speeds of the first cam 221 and the second cam 223 can be adjusted.

4 is an enlarged view for explaining the latch portion shown in Figs. 1 to 3. Fig.

1 to 4, when the cam 220 is pushed from the fixed gear 110 and the motor 210 is swung within a predetermined angle range, the circular gear 330 is also pushed so that the circular gear 330 330 move away from the fixed gear 110 and the swinging part 320 rotates and reciprocates by the rotational motion of the cam 220 within a predetermined angle range. Here, the rotational reciprocating motion within the predetermined angular range of the oscillating portion 320 is determined in accordance with the shape of the cam 220. When the swinging part 320 rotates and reciprocates within a predetermined angle range, the extending part 340 pulls the latching part 350. 4, the engaging portion 350 is pulled together with the extended portion 340, and the engaging portion 350 is engaged with the outer peripheral edge of the circular plate 50 in the other direction of the oscillating portion 320 It is possible to rotate the ganged gear circular plate by a certain angle. Here, the predetermined angle corresponds to a saw blade to be formed.

5 is a side view for explaining a circular plate supporting portion and a rail bar according to the embodiment.

1 to 5, a saw blade grinding machine 10 according to an embodiment includes a circular plate supporting part 400 and a rail bar 500 disposed at the upper end of the supporting part 100 and formed on the lower side of the circular plate 50 .

The circular plate support 400 contacts the circular plate 50 at a position different from that of the glue line 230. The circular plate support 400 may include a fixing portion 410, a first support portion 420, a second support portion 430, a pressing portion 440, a first contact portion 450 and a second contact portion 460 .

Specifically, the fixing part 410 fixes the first supporting part 420 movable along the rail bar 500. [ The fixing part 410 can fix the position of the first supporting part 420 in correspondence with the radius of the circular plate 50. [

The second supporting portion 430 is positioned on the first supporting portion 420 and the pressing portion 440 presses the second supporting portion 430 on the second supporting portion 430 in the direction of the first supporting portion 420.

The first contact portion 450 is formed at the lower end of the second support portion 430 and the second contact portion 460 is formed at the upper end of the first support portion 420 so as to face the first contact portion 450. The first contact portion 450 and the second contact portion 460 abut the upper end and the lower end of the circular plate 50. Specifically, the first contact portion 450 contacts the upper end of the circular plate 50, and the second contact portion 460 contacts the lower end of the circular plate 50 to support the circular plate 50. Therefore, when the first contact portion 450 and the second contact portion 460 come into contact with the upper and lower ends of the circular plate 50, the degree of support of the circular plate 50 is adjusted by using the pressing portion 440.

The rail bar 500 can move the circular plate 50 horizontally. Specifically, the rail bar 500 can vertically move the circular plate 50 corresponding to the radius of the circular plate 50 by including two vertical bars. For example, when the radius of the circular plate 50 is smaller than that of FIG. 2, the circular plate 50 can be horizontally moved in the upper left direction with reference to FIG.

As described above, since the saw blade grinding machine 10 according to the embodiment further includes the circular plate supporter 400, it is possible to prevent the separation of the circular plate 50, thereby preventing an accident.

Further, since the saw blade grinding machine 10 according to the embodiment further includes the rail bar 500, it is possible to grind the saw blade without limitation of the radius of the circular plate 50. [

FIGS. 6A and 6B are plan views for explaining the movement of the driving portion and the latch portion by the cams, FIGS. 7A and 7B are enlarged views for explaining the operation of the latch portion of the latch portion according to the embodiment, Is an enlarged view for explaining a process in which a saw blade is formed on a circular plate.

6 to 8 are diagrams comparing movements of the drive unit 200 and the latch unit 300 according to the rotation of the cam 220.

6A shows a state in which the side of the cam 220 having the smallest radius is in contact with the outer circumference of the fixed gear 110. FIG. (110).

6A, 7A, and 8A, when the surface of the cam 220 having the smallest radius comes into contact with the outer periphery of the fixed gear 110, the engaging portion 350 is separated from the circular plate 50 And the glue line 230 contacts the circular plate 50 to form a saw blade on the outer circumference of the circular plate 50.

6B, 7B, and 8C, when the surface of the cam 220 having the largest radius comes into contact with the outer circumferential edge of the fixed gear 110, the engaging portion 350 is engaged with the circular plate 50, So that the circular plate 50 is rotated at a predetermined angle, and the linearizer 230 is separated from the circular plate 50.

The cam 220 may be composed of a first cam 221 and a second cam 223 that are vertically disposed and rotate in one direction. The engaging portion 350 rotates the circular plate 50 in accordance with the deflection rotation of the second cam 223, .

The predetermined angle a of the driving unit 200 shown in FIG. 6B is adjusted according to the kind of the first cam 221, that is, the position where the through hole is deviated from the center, Can be adjusted according to the kind of the first cam 221 and the second cam 223, that is, the position where the through hole is deviated from the center. As the predetermined angle a is increased, the depth of the saw blade formed on the outer circumference of the circular plate 50 can be increased. As the predetermined angle a becomes smaller, the saw blade formed on the outer circumference of the circular plate 50 The depth may be small. That is, the depth of the saw blade formed on the outer periphery of the circular plate 50 can be adjusted according to the kind of the first cam 221, that is, the position where the through hole is deviated from the center.

As described above, the saw blade grinding machine 10 according to the embodiment changes the cam 220 to determine the predetermined angle a of the driving part 200 and the predetermined angle b of the rake part 300, The shape of the saw blade formed on the outer periphery of the blade 50 can be changed.

9 is an enlarged plan view of a circular plate on which a saw blade is formed by a saw blade grinding machine according to the embodiment.

Referring to FIG. 9, the saw blade grinding machine 10 according to the embodiment may be formed with a first plate a1 and a second plate a2 on a circular plate 50 having a saw blade formed thereon. Here, the first call (a1) and the second call (a2) are continuous with each other and have different shapes. 8A, the first line a1 is grinded while being separated from the circular plate 50, and the second line a2 is ground as shown in FIG. 8A, Is grinded near the circular plate (50).

Further, since the upper and lower surfaces of the outer periphery of the circular plate 50 on which the saw blade is formed are not ground by the saw blade grinding machine 10 according to the embodiment, the thickness of the saw blade may be the same as the thickness of the circular plate.

As described above, the saw blade grinding machine 10 according to the embodiment can be formed in a shape having two arcs, and the first arc a1 and the second arc a2 can be simultaneously formed at the same time, the manufacturing time can be reduced as compared with the case of separately performing the step of forming a1) and the step of forming the second number (a2).

Further, in the saw blade grinding machine 10 according to the embodiment, since the thickness of the saw blade formed on the circular plate 50 is equal to the thickness of the circular plate, the saw blade can be used for a long time.

The saw blade grinder 10 according to the embodiment may further include a manual brake (not shown) for preventing the grinder 230 and the circular plate 50 from being physically contacted with each other. Specifically, the manual brake may physically push the glue lineer 230 so that the glue lineer 230 does not contact the circular plate 50. Therefore, it is possible to stop the saw blade grinder 10 quickly and completely when a failure or an emergency occurs.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood that various variations and applications are possible. For example, each component specifically shown in the embodiments can be modified and implemented. It is to be understood that all changes and modifications that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

10: saw blade grinder 50: circular plate
210: motor 220: cam
230: Gliner 320:
330: circular gear 340: extension part
350:

Claims

A motor interlocked with the cam;
A cam connected to one end of the motor and having a through hole biased from the center;
A grinding line connected to the other end of the motor and configured to form a saw blade on an outer circumference of a circular plate that rotates about a rotation axis;
A circular gear interlocking with the rotation of the cam;
An oscillating part connected to the circular gear and reciprocatingly reciprocating by a rotational motion of the cam within a predetermined angle range;
An extension connected to the other side of the oscillating portion; And
And an engaging portion connected to the extending portion and rotating the circular plate.

The method according to claim 1,
Wherein the cam is composed of a first cam and a second cam that are arranged vertically and rotate in one direction,
The first cam is in contact with the outer periphery of the fixed gear,
And the second cam is in contact with an outer periphery of the circular gear.

The method according to claim 1,
The motor is connected to a speed reducer at one end thereof and to the other end thereof,
And said cam is decelerated and rotated by said speed reducer.

The method according to claim 1,
And the depth of the saw blade formed on the outer periphery of the circular plate is adjusted according to the deflection position of the through hole of the cam.

The method according to claim 1,
Wherein the cam is composed of a first cam and a second cam that are arranged vertically and rotate in one direction,
The engaging portion rotatably moves the circular plate in accordance with the deflection rotation of the second cam,
Wherein the grip line is moved closer to or away from the circular plate by a movement of the motor that is oscillated within a predetermined angle range in accordance with the deflection rotation of the first cam.

6. The method of claim 5,
Wherein the saw blade formed on the circular plate by the first cam and the second cam is formed in a shape having two arcs.

The method according to claim 1,
Wherein the thickness of the saw blade formed by the saw blade grinding machine is equal to the thickness of the circular plate.

The method according to claim 1,
And a manual brake to prevent the grinder from physically contacting the circular plate.

The method according to claim 1,
And a rail bar formed below the circular plate and horizontally moving the circular plate.