KR20150049035A - Knife sharpening device - Google Patents

Abstract

The present invention relates to a grinding machine used for grinding various kinds of blades, and more particularly, to a grinding machine for grinding various kinds of blades, more specifically, to provide grinding water by gravity and to provide a large storage space for storing and storing tools and knives, It is possible to easily grind without any size, so that even a beginner can easily grind the grinding machine.
That is, the present invention provides a grinding machine provided with two polishing grindstones symmetrically formed on a driving shaft driven by a driving motor installed in a vehicle and driven by a DC power source, the grinding wheels having both side surfaces as grinding surfaces; A base frame; A support which is coupled to the left and right sides of the base frame so as to be in contact with the ground; A cage which is inserted between the two side plates; A support installed at an intermediate upper side of the base frame; A driving shaft axially coupled to a bearing provided in a support and having a driven pulley coupled to the inside of the support; A drive motor coupled to the driven pulley and a drive pulley connected to the belt, the drive motor being disposed behind the support; Two polishing grindstones detachably coupled to both sides of the driving shaft and having both side surfaces as grinding surfaces; A guide rail fixed to the support so as to be positioned in front of the polishing grindstone; A guide which is laterally moved in a state sandwiched between the guide rails; A front brush which is fixed to the guide rail and is in contact with the polishing wheel in an axial direction; A collecting hopper installed on both sides of the support so as to be positioned below the polishing grindstone, collecting polishing water and discharging the polishing water through a discharge pipe to a collection container; A side cover having a lower end fixed to the base frame at a height for receiving the water collecting hopper and forming a storage space opened frontward between the water collecting hopper and the base frame and coupling the motor repair cover to the rear side; A water tank holding plate which is integrally bent with a cover plate erected on the upper rear side of the collecting hopper so as to be located behind the polishing wheel and is coupled to the upper end of the side cover to seal the upper portion of the driving motor to a position higher than the polishing wheel; A scattering prevention plate protruding from the upper end of the covering plate to the upper side of the polishing grindstone; A water tub installed on the water tray; And a check valve connected to the water collecting hopper and disposed in the middle of the polishing water hose and the polishing water hose for supplying polishing water to the both side grinding surfaces of the polishing grindstone while being connected to the lower end of the water tank.

Description

Knife sharpening device

The present invention relates to a grinding machine used for grinding various kinds of blades, and more particularly, to a grinding machine for grinding various kinds of blades, more specifically, to provide grinding water by gravity and to provide a large storage space for storing and storing tools and knives, It is possible to easily grind without any size, so that even a beginner can easily grind the grinding machine.

BACKGROUND ART [0002] Knife sharpening apparatuses for polishing knives used in businesses or homes are provided in various configurations.

A typical example is an electromagnet knife grinding machine of Korea Registered Utility Model No. (Y1) No. 21-0411645 (May 21, 2106), which is equipped with a motor provided on the upper surface of the base, A rotary drum rotatably driven by the rotary drum and having an outer surface to which a magic tape is adhered, and a sandpaper which is detachably attached to the outer surface of the rotary drum; A vertical support bracket rotatably coupled to one side of the rotary drum by a fixing bracket and a rotary shaft and a tension spring, a conveyance table having guide rollers supported on the vertical support rods and supported by the guide rods, A gripping portion formed of a support plate in the form of a leaf spring for firmly holding the blade at the inside of the vertical support; A control screw installed vertically to the vertical support and elevating and lowering the conveying table while being operated forward and backward by an elevation adjusting knob at the upper end, and a control screw, which is axially transversely coupled to the fixing bracket of the base, And an adjustment unit including an operation cam having a plurality of contact surfaces having different radii in close contact with each other and an angle adjustment knob formed on a rotation axis of the operation cam.

The prior art described above has a problem in that the configuration of the gripper portion and the configuration of the adjustment portion are complicated, so that it is difficult for the novice user to manipulate the gripper portion and the grinding portion is made of sandpaper, which requires frequent replacement.

In another embodiment, a knife sharpener of the Korean Utility Model Registration Utility (Y1) No. 21-0410944 (Oct. 10, 2010) is provided. The knife sharpener is provided with a case in which an upper surface opened by a cover formed with a blade entry groove is shielded ; A screw shaft provided with a handle at one end exposed to the outside while being formed in a lateral direction in the case and having a spiral in a direction opposite to the opposite direction and a guide shaft parallel to the screw shaft, and; A screw shaft which is moved along the screw shaft and through which the guide shaft is passed; a rotating shaft which is rotatably installed in the housing and which is arranged orthogonally to the screw shaft; and a polishing wheel having an uneven surface integrally joined to the front side of the rotating shaft A pair of left and right running means made of a driven pulley coupled to the rear side; And a two-stage pulley connected to the drive shaft provided under the case and connected to each of the driven pulleys by a belt to transmit power, and is provided concentrically on the drive shaft of the motor protruding outside the case, A cemented carbide wheel which is a pair of hollow cylindrical members which are rotated by a rotation of the cemented carbide grinding wheel, And further comprising grinding means.

There is no means for supporting the knife by means of a structure in which the blade is inserted and sandwiched between the grinding wheels of a pair of left and right coarse means composed of a grinding wheel having an uneven surface and a driven pulley coupled to the rear side, So that the workability is deteriorated.

Further, in the case of the conventional knife polishing apparatus, since the motor for driving the grinding wheel and the pump for supplying the polishing water are driven, the power consumption rate is high and battery consumption is increased when mounted on a vehicle.

KR 210411645 Y1 2106.03.15. KR 210410944 Y1 2106.03.10.

Therefore, the present inventor has researched and developed the present invention in the light of the foregoing problems. The present invention allows the abrasive water to be provided by gravity and provides a large storage space for storing and storing tools and knives, The present invention has been accomplished on the basis of the technical problem that the present invention provides a polishing apparatus having a function to easily grind even beginners by allowing easy grinding without regard to the size of the polishing pad.

According to an aspect of the present invention, there is provided a calibrating apparatus including two polishing grindstones symmetrically formed on a driving shaft driven by a driving motor driven by a DC power source, the grinding wheels having both side surfaces as grinding surfaces; A base frame; A support which is coupled to the left and right sides of the base frame so as to be in contact with the ground; A cage which is inserted between the two side plates; A support installed at an intermediate upper side of the base frame; A driving shaft axially coupled to a bearing provided in a support and having a driven pulley coupled to the inside of the support; A drive motor coupled to the driven pulley and a drive pulley connected to the belt, the drive motor being disposed behind the support; Two polishing grindstones detachably coupled to both sides of the driving shaft and having both side surfaces as grinding surfaces; A guide rail fixed to the support so as to be positioned in front of the polishing grindstone; A guide which is laterally moved in a state sandwiched between the guide rails; A front brush connected to the guide bracket so as to be in contact with the polishing wheel in an axial direction; A front cover detachably coupled to the water collecting hopper so as to be positioned in front of the guide rail; A collecting hopper installed on both sides of the support so as to be positioned below the polishing grindstone, collecting polishing water and discharging the polishing water through a discharge pipe to a collection container; A side cover having a lower end fixed to the base frame at a height for receiving the water collecting hopper and forming a storage space opened frontward between the water collecting hopper and the base frame and coupling the motor repair cover to the rear side; A water tank holding plate which is integrally bent with a cover plate erected on the upper rear side of the collecting hopper so as to be located behind the polishing wheel and is coupled to the upper end of the side cover to seal the upper portion of the driving motor to a position higher than the polishing wheel; A scattering prevention plate protruding from the upper end of the covering plate to the upper side of the polishing grindstone; A water tub installed on the water tray; A polishing water hose for supplying polishing water to both sides of the grinding wheel in a state of being connected to the lower end of the water tank, and a check valve connected to the water collecting hopper.

Wherein the guide hole is engaged with a fixture which is laterally moved in a state of being fitted to the guide rail; Wherein the guide hole is formed so as to form an arc-shaped guide surface toward the grinding surface; The coupling between the fixture and the guide hole is eccentrically fixed by a fixing bolt coupled with the drive shaft in a direction perpendicular to the axis while being inserted into the coupling groove formed in the fixture.

According to another aspect of the present invention, The upper cover has a hook type fixing means that is coupled to the side cover and the rear end by a hinge and is detachable from the side cover on both sides.

According to the present invention, since the polishing water supplied from the water tank can be supplied by gravity, the polishing water can be supplied without the pump.

There is no fear of a short circuit because it completely blocks the inflow of polishing water into the driving motor.

A large storage space is formed between the base frame and the collecting hopper, so that a tool, a knife, and the like can be stored.

Since the fastener that moves left and right along the guide rail is coupled with the guide having the arc-shaped guide surface, it is easy to set because it is fixed in the state of being moved left or right depending on the abrasion of the grinding wheel or the kind of the knife. It is possible to provide convenience that can be done.

FIG. 1 is a perspective view of a curling apparatus provided in the present invention,
FIG. 2 is a front view of a curling apparatus provided in the present invention;
Fig. 3 is a side view of the curling apparatus provided by the present invention
Fig. 4 is a rear view of the curling apparatus provided by the present invention. Fig.
Fig. 5 is a perspective view showing the combination of the polishing grindstone and the guide in the present invention. Fig.

Hereinafter, an embodiment of a curling apparatus provided in the present invention will be described with reference to the accompanying drawings.

FIG. 2 is a front view of a curling apparatus provided in the present invention. FIG. 3 is a perspective view of a curling apparatus provided in the present invention. FIG. Fig. 4 is a rear view of the polishing apparatus provided in the present invention, and Fig. 5 is a perspective view showing a combination structure of the polishing grindstone and the guide in the present invention, respectively.

The grating device 1 provided in the present invention joins the support 3 so as to come into contact with the ground at the lower left and right sides of the plate-shaped base frame 2 as shown in the figure.

The support 3 may be formed of a section steel or the like, and a collecting container 4 may be installed between the both side supports 3 to collect the polishing water.

A support 5 is set up at the upper center of the base frame 2. The support 5 is constituted by a box type constituted by an iron plate and a drive shaft 7 is provided on the upper side of the support 5 so as to be supported by a plurality of bearings 6.

The drive shaft 7 is provided with a driven pulley 8 so as to be positioned between the bearings 6 provided on the support 5 so as to be keyed between the bearing 6 and the driven pulley 8, The driving pulley 10 installed on the driving motor 9 driven by the vehicle's DC power source is connected to the base 11 by the belt 11 so that the driving shaft 7 is located at the rear of the driving shaft 5, .

The drive shaft 7 protrudes to both sides of the support 5 and two grindstones 12 are detachably coupled to both sides of the drive shaft 7. At this time, the polishing grindstone 12 is selected and used as the polishing surface 12a.

A guide rail 13 is fixed to the front of the support 5 so as to be parallel to the drive shaft 7 and positioned in front of the polishing grindstone 12. The guide rail 13 may be provided in various configurations such as a round bar, a pipe, and a square pipe.

The fixing rails 14 are provided on the guide rails 13 on the left and right polishing surfaces 12a of the polishing grindstone 12 and may be slidably moved along the guide rails 13 as required.

An engaging groove 14a is formed in the fixing hole 14 so as to be axially opened on the upper side so as to be positioned on the side of the abrasive face 12a and an arcuate guide surface 15a And is engaged with the drive shaft 7 in a direction perpendicular to the axis by using a fixing bolt 16 assembled to the fixing member 14. [ The guide hole 15 is formed in a substantially semicircular shape, and the guide hole 15 is provided eccentrically to the fixture 14.

Such an assembling structure of the fastener 14 and the guide 15 allows the user to easily adjust the gap between the grinding surface 12a of the grinding wheel 12 and the guide 15 according to the size of the knife .

That is, when the large knife is to be polished, the distance between the grinding surface 12a and the guide hole 15 must be made wider. This is because the fixture 14, which slides along the guide rail 13, When the small knife is to be polished, the distance between the grinding surface 12a and the guide hole 15 is set to be smaller than the distance between the grinding surface 12a and the guide hole 15. [ This is achieved by using a guide 15 provided on the fixture 14 in a state in which the fixture 14 slidingly moved along the guide rail 13 is moved close to the grinding surface 12a You can fine-tune it. Since the guide 15 is eccentrically coupled to the fixture 14 while having a guide surface 15 of a tongue-like shape, the distance between the grinding surface 12a and the guide 15 can be adjusted only by rotating the guide 15 It is possible.

The front bracket 17a is fixed to the guide rails 13 so as to be in contact with the polishing grindstone 12 in the axial direction, A front cover 30 having a coupling groove 30a formed at a lower end thereof so as to be detachable from the water collecting hopper 18 to be described later is installed forward of the front cover 13.

In the case where the front brushes 17a and the front cover 30 are installed as described above, the scattering of the abrasive water on the surface of the polishing grindstone 12 is completely blocked when the polishing grindstone 12 rotates at a high speed, It can be maintained.

A collecting hopper (18) is installed at both sides of the support (5) so as to be positioned below the polishing grindstone (12).

The water collecting hopper 18 is constructed such that the support 5 is of a low inclination type and the discharge pipe 18a is coupled to the support 5 at a position close to the support 5, So that the polishing water can be discharged.

A side cover 19 is installed above the edge of the base frame 2 to receive the driving motor 9 and the collecting hopper 18. The side cover 19 is formed to be higher than the water collecting hopper 18 and contacts the side surface of the water collecting hopper 18 to support the water collecting hopper 18, And is formed in a shape of a c-shape in plan view.

A motor repair cover 19a is provided on the rear side of the side cover 19 so as to be used for easily replacing the belt 11 or the like in the drive motor 9 installed by the side cover 19. [ .

A cover plate 21 is provided at the rear side of the collecting hopper 18 so as to be in contact with the collecting hopper 18 so that the lower end of the cover 21 is located at the rear side of the polishing grindstone 12, The water tank holding plate 22 is formed so as to close the upper portion of the driving motor 9 to a position higher than the polishing grindstone 12 by being bent integrally with the plate 21 and is coupled with the upper end of the side cover 19, And the scattering prevention plate 23 is formed so as to protrude above the polishing grindstone 12 from the upper end of the shielding plate 21 so that the polishing water is scattered during the polishing of the knife, .

A water tank 24 having an injection pipe 24a sealed by a lid 24b is provided on the water tank support plate 22 and a polishing water hose 25 is piped to the lower end of the water tank 24, The hose 25 is positioned at the both side grinding surfaces 12a of the polishing grindstone 12 and a check valve 26 coupled to the water collecting hopper 18 is provided in the middle of the polishing water hose 25, The quantity of water can be adjusted. Further, the water tank 24 is provided with a flow meter 24c so that the water level of the polishing water in the water tank 24 can be checked.

The upper cover 27 includes a side cover 19 and a rear end joined by a hinge 28 and has a side cover 19 and a side cover 20 on both sides, Type fixing means 29 so that the injection tube 24a exposed to the injection hole 27a formed in the upper cover 27 when the polishing water is replenished to the water tray 24 is removed, .

In the present invention, the polishing grindstone 12 is configured to be divided into left and right parts as shown in the upper side of FIG. In the case where the grinding wheel 12 is divided into left and right grinding wheels, it is possible to use only one of the grinding grinding wheels 12 when the one grinding wheel 12 is used intensively, depending on the kind of the knife, The abrasive grindstone 12 can be used only for a long period of time.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. Therefore, the scope of protection of the present invention should not be limited to the described embodiment, but should be determined by the equivalents as well as the claims that follow.

1: Calking device 2: Base frame
3 Districts 4: Water cans
5: Support 6: Bearings
7: drive shaft 8: driven pulley
9: drive motor 10: drive pulley
11: belt 12: abrasive wheel
12a: Polishing surface 13: Guide rail
14: fixture 14a: engaging groove
15: guide hole 15a: guide surface
16: Fixing bolt 17: Brush bracket
17a: front brush 18: collecting hopper
18a: discharge pipe 19: side cover
19a: motor repair cover 20: storage space
21: closure plate 22: aquarium plate
23: scattering prevention plate 24:
24a: injection tube 24b: lid
24c: Flow meter 25: Polished water hose
26: Check valve 27: Upper cover
27a: injection hole 28: hinge
29: fixing means 30: front cover
30a: Coupling groove

Claims (4)

A grinding machine (1) provided with two grinding wheels (12) whose both sides are symmetrically formed as a grinding surface (12a) on a drive shaft (7) driven by a drive motor (9) ;
A base frame 2;
(3) coupled to both the left and right sides of the base frame (2) so as to be in contact with the ground;
A water collection container (4) which is inserted between the both side supports (3);
A support (5) installed at an intermediate upper side of the base frame (2);
A driving shaft 7 axially coupled to a bearing 6 provided in the support 5 and coupled to the driven pulley 8 so as to be located inside the support 5;
A drive motor 9 coupled to the drive pulley 10 connected to the driven pulley 8 by a belt 11 and installed at the rear of the support 2;
Two polishing grindstones 12 detachably coupled to both sides of the driving shaft 7;
A guide rail 13 fixed to the support 5 so as to be positioned in front of the polishing grindstone 12;
A guide hole 15 which is laterally moved in a state of being fitted to the guide rail 13;
The guide hole 15 is provided with a front brush 17a coupled to the brush bristle 17 so as to be in contact with the polishing grindstone 12 in the axial direction;
A front cover 30 detachably coupled to the water collecting hopper 18 so as to be positioned in front of the guide rail 13;
A collecting hopper 18 installed on both sides of the support 5 so as to be positioned below the polishing grindstone 12 and collecting the polishing water and discharging the polishing water through the discharge pipe 18a to the collecting container 4;
A lower end is fixed to the base frame 2 at a height that receives the water collecting hopper 18 and a storage space 20 is opened between the water collecting hopper 18 and the base frame 2 to open the front, Side cover (19) to which the cover (19a) is coupled;
And is integrally bent with a clipping plate 21 and a clipping plate 21 that are raised to the rear upper side of the collecting hopper 18 so as to be located behind the polishing grindstone 12 and are driven to a position higher than the polishing grill 12 9) a water tank receiving plate (22) coupled to an upper end of the side cover (19) to seal the upper part;
A scattering prevention plate 23 protruding from the upper end of the shielding plate 21 to the upper side of the polishing grindstone 12;
A water tank (24) installed on the water tank receiving plate (22);
A polishing water hose 25 and a polishing water hose 25 which are connected to the lower end of the water tank 24 and provide polishing water to both side grinding surfaces 12a of the polishing grindstone 12, And a check valve (15) coupled to the valve (18).
The method of claim 1,
The guide member 15 is engaged with a fixture 14 which is moved to the left and right in a state of being fitted to the guide rail 13;
The guide member 15 is configured to form an arcuate guide surface 15a toward the grinding surface 12a;
The engagement between the fixing member 14 and the guide member 15 is made to be eccentric by the fixing bolt 16 engaged with the drive shaft 7 in the direction perpendicular to the axis while being inserted into the connection groove 14a formed in the fixing member 14 Wherein the fixing device fixes the fixing device.
The method of claim 1,
And an upper cover (27) for sealing the water tank (24);
Characterized in that the upper cover (27) is coupled with the side cover (19) and the rear end with a hinge (28), and a hook type fixing means (29) is detachably attached to both sides of the side cover (19).
The method of claim 1,
Wherein the polishing grindstone (12) is divided into left and right grindstones.

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