KR101725907B1

KR101725907B1 - Round bar cutting device

Info

Publication number: KR101725907B1
Application number: KR1020160136543A
Authority: KR
Inventors: 김영배
Original assignee: 성일금속산업 주식회사
Priority date: 2016-10-20
Filing date: 2016-10-20
Publication date: 2017-04-11
Also published as: WO2018074689A1

Abstract

The present invention relates to a cutter for cutting a round bar having improved efficiency and economical efficiency of cutting, comprising a holder coupled to a lower end of a presser, a blade coupled to the holder, and a fixing member for coupling the holder and the blade .

Description

Round bar cutting device [0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting tool for cutting a round bar, and more particularly, to a round bar cutting tool having improved cutting efficiency and economy.

Generally, a cutting tool for cutting a round bar is provided at a lower end of a presser such as a press which operates up and down, and is used for cutting a round bar into a certain length. The structure is formed by an integral cutter, And a blade for cutting the round bar is formed at the bottom.

The above-mentioned conventional cutting tool for cutting a round bar has a problem in that when the knife is dull during the cutting operation, the whole cutting tool is exchanged. However, since several pieces of the cutting tool need to be exchanged every day, work efficiency is lowered, have.

Korean Patent Registration No. 10-0807072 Korean Utility Model Publication No. 20-1993-0004348

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to improve the efficiency of a cutting operation by using a cutting tool for cutting a round bar so that the blade can be quickly replaced when the blade is worn.

Another object of the present invention is to reduce the cost of using the cutting tool for round bar cutting, thereby improving the economical efficiency.

The problems to be solved by the present invention are not limited to the above-mentioned problems. It is to be understood by those skilled in the art that the present invention may be embodied in many other specific forms without departing from the spirit or essential characteristics thereof.

The present invention is characterized by comprising a holder coupled to a lower end of a pressurizing member, a blade coupled to the holder, and a fixing member for coupling the holder and the blade.

The present invention is capable of rapidly changing the blades when the blade is worn out during use of the round bar cutting cutter, thereby reducing the time for replacing the blade and thus improving the efficiency of the round bar cutting operation.

Further, according to the present invention, it is possible to replace only the blade, not the whole cutter hole, when the blade is worn out while using the cutter for cutting the round bar, thereby reducing the use cost of the cutter for cutting the round bar.

1 is a perspective view of a first configuration according to the present invention;
Fig. 2 is an exploded perspective view of Fig.
Figs. 3A and 3B are a perspective view and a bottom perspective view of a holder according to the first aspect of the present invention; Fig.
4 is a perspective view showing a blade and a coupling member according to the first configuration according to the present invention;
5 is a bottom perspective view showing a blade and a coupling member according to the first configuration according to the present invention;
6 is a perspective view of a second configuration according to the present invention;
Figure 7 is an exploded perspective view of Figure 6
8A and 8B are a perspective view and a bottom perspective view of a holder of a second configuration according to the present invention;
9 is a perspective view showing a blade and a coupling member of a second configuration according to the present invention;

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The known configurations and their associated operations are omitted or briefly described, and the size of each element or a specific portion constituting the element in the drawings may be exaggerated, omitted, or schematically shown for convenience and clarity of description . In the following description, the front, back, left, and right directions indicate the directions shown in Fig.

Fig. 1 is a perspective view of a first configuration according to the present invention, and Fig. 2 is an exploded perspective view of Fig. 1. Fig.

As shown in the drawing, the cutting tool for circular bar according to the first aspect of the present invention includes a holder 100 coupled to a lower end of a presser such as a press, a blade 200 coupled to a central bottom surface of the holder 100, And a coupling member 300 provided on the left and right sides of the bottom surface of the holder 100 to fix the blade 200 to the holder 100. The holder 100 and the blade 200 are formed to be capable of being coupled and separated from each other by a coupling member 300.

3A and 3B are a perspective view and a bottom perspective view of a holder according to a first embodiment of the present invention. The holder according to the first embodiment of the present invention will be described with reference to FIGS. 2 and 3. FIG.

Referring to the drawings, a holder 100 includes a pressing hole 110 formed on an upper surface thereof, a blade coupling part 120 formed at the center of a bottom surface of the holder 100 and coupled to the blade 200, A guide protrusion 121 protruding from the center of the holder 120 and a coupling member fixing part 130 including a fixing hole 131 formed on the right and left sides of the bottom surface of the holder 100.

The upper portion of the holder 100 is in the form of a polygonal block, and the center of the lower bottom is formed into a semicircular concave shape. A fastening means is connected to the press fitting hole 110 so that the upper end of the holder 100 and the lower end of the press fitting are coupled. The blade coupling part 120 has a shape corresponding to the upper surface of the blade 200 at the bottom and is formed in a semicircular shape at the center of the bottom surface of the holder 100.

A guide protrusion 121 is formed in the center of the blade coupling part 120 from the left end to the right end to accurately specify the position of the blade 200 coupled to the blade coupling part 120, Preventing the position of the blade 200 from being disengaged The engaging member 300 for engaging and fixing the blade and the holder 100 is disposed in the engaging member fixing portion 130 formed on the left and right bottom surfaces of the holder 100 .

FIG. 4 is a perspective view showing a blade and a coupling member according to a first configuration according to the present invention, and FIG. 5 is a bottom perspective view showing a blade and a coupling member according to the first configuration according to the present invention. Referring to FIGS. 2, 4, and 5, the blade and the coupling member will be described below.

The blade 200 has a guide connecting groove 210 formed at the center of the upper surface and corresponding to the guide protrusion 121 of the holder 100 and a slanting protruding surface And a vertical support surface 240 extending vertically downward from an end of each of the side sill 230. The vertical support surface 240 is formed at the left and right ends of the blade 200, .

The blade 200 is formed such that its overall thickness is thicker than the thickness of the holder 100, its top surface is convex and its central bottom surface is a semicircular concave shape. The guide connecting groove 210 is formed from the right end to the left end of the convex upper surface of the blade 200 and is formed to be concave from the left end to the right end as well as a part of the center of the both side lugs 230 . The guide connecting groove 210 has a shape corresponding to the guide protrusion 121 of the holder 100 and is engaged with the guide protrusion 121 so that the position of the blade 200 in the blade connecting portion 120 of the holder 100 As shown in Fig.

The inclined projecting surface 220 is formed such that a cut portion formed in a lower direction of the blade 200 protrudes from a front end and a rear end of the holder 100. This is because only the cut portion of the blade 200 is formed thicker than the thickness of the holder 100 to reduce the manufacturing cost of the blade.

The side engagement jaws 230 are horizontally formed at the left end and the right end of the blade 200 and are in contact with the upper surface of the fixing member 310 of the coupling member 300. The side catching jaws 230 are supported by the fixing member 310 and are formed such that the blade 200 is fixed to the holder 100. The vertical support surface 240 is vertically contacted with the side surface of the fixing member 310 so that the blade 200 is not displaced from the blade coupling portion 120 of the holder 100 by mutual support with the fixing member 310 .

The coupling member 300 includes a fixing member 310 and a coupling screw 320. The fixing member 310 is formed to have a predetermined shape and a predetermined thickness, and includes a through hole 311 vertically formed with a left side and a right side and formed to penetrate in the vertical direction. It is preferable that the left and right sides of the fixing member 310 correspond to the vertical support surface 240 of the blade 200 and are changed so that they are aligned when the shape or angle of the vertical support surface 240 is changed. The upper surface of the fixing member 310 is brought into contact with the engaging member fixing portion 130 of the bottom surface of the holder 100 and the side jaw 230 of the blade 200 to fix the blade 200 and the holder 100 together .

The engaging screw 320 is a general bolt and is connected to the fixing hole 131 of the coupling member fixing part 130 formed on the both sides of the through hole 311 and the holder 100,

Referring again to FIG. 2, the operation of the cutting tool for round bar cutting according to the first embodiment of the present invention will be described below.

The blade 200 is coupled at the bottom of the holder 100 and the fixing member 310 and the coupling screw 320 are also fastened at the bottom of the holder 100 so that the blade 200 and the holder 100 are coupled together, Respectively. The cutter for round bar according to the first aspect of the present invention is characterized in that when the knife is worn out during a round bar cutting operation, the engaging screw and the fixing member are separated, and then the worn blade is replaced with a new blade, The operation can cope with blade wear.

The coupling position of the blade 200 can be easily selected and fixed by the coupling action of the guide protrusion 121 of the holder 100 of the guide connecting groove 210 of the blade 200 during the operation of replacing the blade 200, The efficiency of the replacement work is improved.

FIG. 6 is a perspective view of a second configuration according to the present invention, and FIG. 7 is an exploded perspective view of FIG. 6 according to the present invention.

As shown in the drawing, the cutter for round bar according to the second embodiment of the present invention includes a holder 400 coupled to a lower end of a presser such as a press, a blade 500 coupled to the front and rear surfaces of the holder 400, And a coupling member 600 provided on the front surface of the holder 400 for coupling the blade 500 and the holder 400 to each other. The holder 400 and the blades are formed to be capable of being coupled to and separated from each other by a coupling member 600, and the two blades 500 are symmetrically formed in the front and rear directions.

8A and 8B are a perspective view and a bottom perspective view showing a holder of a second configuration according to the present invention. The holder according to the second configuration of the present invention will be described with reference to FIGS. 7 and 8. FIG.

Referring to the drawings, a holder 400 includes a pressing hole 410 formed on an upper surface thereof, a blade coupling groove 420 formed on both sides of the front and rear sides of the holder 400 to be concave downward, And a blade fixing hole 421 formed through the groove 420 in the inner direction of the holder 400.

The holder 400 is formed in a polygonal block shape and has a semicircular concave bottom surface. The blade engagement grooves 420 formed on the front and rear surfaces of the holder 400 are formed in a crescent shape and correspond to the blade 500 and have a depth that is shallower than the body thickness of the blade 500. This is because the cutting edge of the blade 500 protrudes from the front end and the rear end of the holder 400. It is preferable that two or more blade fixing holes 421 are formed in each blade coupling groove 420. The blade fixing hole 421 corresponds in shape and number to the coupling member connection groove 530 formed in the blade 500.

9 is a perspective view showing a blade and a coupling member of a second configuration according to the present invention. Referring to FIGS. 7 and 9, the blade and the coupling member according to the second configuration of the present invention will be described as follows. In the following description, the configuration is limited to the blade coupled to the front surface of the holder 400. FIG. The blade coupled to the rear surface of the holder 400 is configured to be symmetrical with the blade coupled to the front and the front and rear directions.

As shown in the figure, the blade 500 includes a slanting protrusion 520 formed in the lower part of the front surface, a contact support surface 510 formed on the rear surface of the blade 500, And an engaging member connecting groove 530 which is formed concavely and which includes a through hole.

The blade 500 has a predetermined thickness and resembles a crescent moon. The predetermined thickness means the thickness of the holder 400 or less. The sloping protruding surface 520 is formed so as to protrude from the front end of the holder 400 when the blade 500 is engaged with the holder 400. The contact supporting surface 510 is formed in the blade coupling groove 420 of the holder 400 And is formed in a shape that is in alignment with the surface of the substrate. Although the contact support surface 510 is illustrated as a vertical surface in the present invention, the shape of the contact support surface 510 may be variously modified. For example, when the contact support surface 510 is formed in a stepped shape, the blade engagement groove 420, which is in contact with the contact support surface 510, is formed in a shape corresponding to the contact support surface 510.

The coupling member connecting groove 530 corresponds to the position and the number of the blade fixing hole 421 of the holder 400. It is preferable that two or more coupling member connecting grooves 530 are also formed. The through holes formed in the coupling member connection groove 530 are formed in the forward and backward directions, and the coupling member 600 is connected to the through holes.

The coupling member 600 includes a coupling mechanical element such as a conventional bolt or the like. The coupling member 600 is coupled to the blade fixing hole 421 of the holder 400 and the coupling member connecting groove 530 of the blade 500 to be connected to the blade 500 and the holder 400 ).

Referring again to FIG. 7, the operation of the cutting tool for cutting a round bar according to the second aspect of the present invention will be described.

As shown in the drawing, the blade 500 is provided on the front and rear surfaces of the holder 400, and the coupling member 600 is coupled to the front and rear surfaces of the holder 400 to couple the blade 500 and the holder 400 Fixed. When the blade provided on the front surface of the holder is worn out during the cutting operation of the round bar, the presser and the holder are separated from each other, and then the holder is rotated 180 degrees in the horizontal direction, It is possible to perform a round-bar cutting operation again.

The above operation alleviates the working time corresponding to the blade wear during the round bar cutting operation and greatly improves the efficiency of the round bar cutting operation by reducing the working time. In addition, since the thickness of the blade can be made thinner than that of the conventional blade, the manufacturing cost of the blade can be reduced.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the present invention as set forth in the following claims. Should belong to the scope of claims of the attached patent registration.

100: Holder 110:
120: blade connecting portion 121: guide protrusion
130: coupling member fixing portion 131: fixing hole
200: blade 210: guide connecting groove
220: slant projecting surface 230: side clasp jaw
240: vertical support surface 300: coupling member
310: fixing member 311: through hole
320: engaging screw 400: holder
410: pressurizing ball coupling hole 420: blade coupling groove
421: blade fixing ball 500: blade
510: contact support surface 520: oblique projection surface
530: coupling member connection groove 600: coupling member

Claims

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In a round bar cutting section,
A holder 100 coupled to the lower end of the pressure port,
A blade 200 coupled to the holder 100,
And a coupling member (300) for coupling the holder (100) and the blade (200) to each other,
The blade 200 is coupled to the central bottom surface of the holder 100 and is formed to a thickness equal to or thicker than the thickness of the holder 100,
The center of the upper side of the blade 200 is formed from the right side end to the left side end. The center portion of the side side holding jaws 230 is recessed from the left end to the right end, A guide connecting groove 210 having a shape corresponding to the guide protrusion 121 of the holder 100 so that the position of the blade 200 is not separated from the holder 120,
An inclined projecting surface 220 protruding in the front and rear direction of the blade 200,
A side catch 230 formed horizontally at the left and right ends of the blade 200,
And a vertical support surface 240 extending vertically downward from an end of each of the side sill 230,
The coupling member 300 is provided on the left and right sides of the bottom surface of the holder 100 to fix the blade 200,
The coupling member 300 includes a fixing member 310 having a predetermined shape and a predetermined thickness and a through hole 311 formed in the fixing member 310 in the vertical direction,
And a coupling screw (320) connected and fixed to the through hole (311) of the fixing member (310) and the fixing hole (131) of the holder (100)

3. The method of claim 2,
The holder 100 is formed in a polygonal block shape,
A pressure applying hole 110 formed on the upper surface for coupling with the pressure applying hole,
A blade coupling portion 120 formed in a semicircular concave shape at the center of the bottom surface,
A guide protrusion 121 protruding from a left end to a right end of the blade coupling part 120 and formed at the center of the blade coupling part 120,
And a coupling member fixing part (130) formed horizontally on both sides of the bottom surface and including fixing holes (131) to which the coupling members (300) are connected.

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In a round bar cutting section,
A holder 400 coupled to the lower end of the pressure port,
A blade 500 coupled to the holder 400,
And a coupling member (600) for coupling the holder (400) and the blade (500) to each other,
The blade 500 is coupled to the front and rear surfaces of the holder 400,
The blade 500 coupled to the front surface of the holder 400 has a predetermined thickness and is formed in a crescent shape,
An inclined projection surface 520 formed on the front surface of the blade 500,
An engaging member connecting groove 530 having a shape and number corresponding to the blade fixing hole 421 of the holder 400 and recessed from the slanting projection surface 520 and a part of the upper surface,
And a contact support surface 510 formed on the rear surface of the blade 500 and shaped to be in contact with the blade coupling groove 420 of the holder 400,
The blade 500 coupled to the rear surface of the holder 400 is formed symmetrically with the blade 500 coupled to the front surface of the holder 400,
The coupling member 600 is provided on the front and rear surfaces of the holder 400 to couple and fix the blade 500 and the holder 400,
Wherein the coupling member (600) is composed of a coupling mechanical element and is connected to the coupling member connection groove (530) and the blade fixing hole (421).

6. The method of claim 5,
The holder 400 is formed in a polygonal block shape and has a semi-circular center at the bottom,
A pressure applying hole 410 formed on the upper surface for coupling with the pressure applying hole,
A blade coupling groove 420 formed in a shape corresponding to the blade 500 so as to be concave in the front and rear lower directions and connected to a part of the blade 500,
And a blade fixing hole (421) formed in an inner direction of the holder in each blade coupling groove (420).

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