KR20230061319A - Bending apparatus for loop type rebar - Google Patents

Abstract

The present invention relates to a loop-type rebar bending apparatus capable of automatically and conveniently bending a loop-shaped rebar. In accordance with the present invention, the bending apparatus for bending a hourglass-shaped loop type rebar, includes: a work table having a work surface; a left die installed on the left side of the work surface of the work table and formed to form a left right-angle bent part and a left slope bent part of the rebar; a right die installed on the right side of the work surface at a predetermined distance from the left die and formed to form a right right-angle bent part and a right slope bent part of the rebar; a jig member for fixing the rebar having the both right-angle bent parts bent such that the rebar comes in tight contact with the rear sides of the left and right dies; a rear punch member pressing the both slope bent parts and a linear bent part on the rear side such that the parts are bent, while supporting the both right-angle bent parts of the rebar fixed by the jig member; a rolling member bending both ends of the rebar bent by the rear punch member to the inside of the left and right dies such that both ends thereof are overlapped with the linear bent part on the front side; and a front punch member pressing the overlapped part of the rebar fixed by the rolling member to bend the both slope bent parts and the linear bent part on the front side.

Description

Loop type rebar bending device {BENDING APPARATUS FOR LOOP TYPE REBAR}

The present invention relates to a loop-type reinforcing bar bending device, and more particularly, to a loop-type reinforcing bar bending device capable of automatically and conveniently bending loop-shaped reinforcing bars.

As is well known, reinforcing bars are used after being cut to a predetermined length or bent for reinforcement in various construction or civil engineering works.

As a prior art for bending rebar, Korean Utility Model Publication No. 20-1993-0006334 (published on April 23, 1993) 'automatic pipe rebar bending machine', Korean Utility Model Publication No. 20-1994-0005208 (Published on March 16, 1994) 'rebar bending machine' and Korean Utility Model Publication No. 20-1994-02854 (published on February 15, 1994) 'rebar bending and bending device' are disclosed.

However, the prior art described above has a problem in that it is difficult to bend a closed loop type reinforcing bar without being cut by bending it in a specific pattern.

In other words, in order to bend a reinforcing bar in the loop shape shown in FIG. 13 to meet a specific purpose in various construction or civil engineering works, it is necessary to bend it several times using the above-mentioned prior art, so that even skilled workers require a lot of work time. It takes a lot of time, which not only lowers productivity, but also makes it difficult to continuously bend into the same shape, resulting in lower quality.

(0001) Republic of Korea Utility Model Publication No. 20-1993-0006334 (published on April 23, 1993) (0002) Republic of Korea Utility Model Publication No. 20-1994-0005208 (published on March 16, 1994) (0003) Republic of Korea Utility Model Publication No. 20-1994-02854 (published on February 15, 1994)

The present invention has been made to solve the conventional problems as described above, and an object of the present invention is to provide a loop-type reinforcing bar bending device capable of automatically and conveniently bending loop-shaped reinforcing bars.

’ 모양의 루프형 철근을 절곡하는 절곡장치에 있어서, 작업면을 갖는 작업테이블, 상기 작업테이블의 작업면 좌측에 설치되어 상기 철근의 좌측 직각절곡부 및 좌측 경사절곡부를 성형하도록 형성된 좌측 다이, 상기 좌측 다이에 소정 간격 이격되게 상기 작업면의 우측에 설치되어 상기 철근의 우측 직각절곡부 및 우측 경사절곡부를 성형하도록 형성된 우측 다이, 상기 좌측 다이 및 상기 우측 다이의 후방에 상기 양측 직각절곡부가 절곡된 상기 철근이 밀착되도록 고정하는 지그부재, 상기 지그부재로 고정된 상기 철근의 양측 직각절곡부를 지지하면서 후방의 상기 양측 경사절곡부 및 선형절곡부를 절곡하도록 압입하는 후방펀치부재, 상기 후방펀치부재로 절곡된 상기 철근의 양측 단부가 전방의 상기 선형절곡부에서 중첩되도록 좌측 및 우측 다이의 내측으로 절곡하는 롤링부재, 및 상기 롤링부재로 고정된 상기 철근의 중첩 부분을 압입하여 전방의 상기 양측 경사절곡부 및 선형절곡부를 절곡하는 전방펀치부재를 포함하되, 상기 전방펀치부재는, 상기 철근의 전방 양측 경사절곡부 및 선형절곡부를 절곡하도록 압입하는 전방펀치, 상기 전방펀치를 작동시키도록 상기 작업면의 전후로 슬라이딩하는 전방슬라이더, 상기 전방슬라이더를 작동시키는 전방실린더, 상기 전방실린더에 의한 상기 전방슬라이더의 전후 슬라이딩을 안내하는 전방 가이드레일을 포함하는 것을 기술사상으로 한다.In order to achieve the above object, the present invention has left and right right angle bends bent at right angles, left and right oblique bends each obliquely bent inward from both right angle bends, and a linear bend connecting the oblique bends on both sides linearly. formed in succession

In a bending device for bending a 'shaped loop-type reinforcing bar, a work table having a work surface, a left die installed on the left side of the work surface of the work table and formed to form a left right angle bend and a left oblique bend of the reinforcing bar, the The left die is installed on the right side of the work surface at a predetermined interval and formed to form the right right angle bend and the right oblique bend of the reinforcing bar, and the left die and the right angle bend are bent at the rear of the right die. A jig member for fixing the reinforcing bars to be in close contact with each other, a rear punch member for press-fitting to bend both oblique bends and linear bends at the rear side while supporting right angle bends on both sides of the reinforcing bar fixed by the jig member, and bending with the rear punch member A rolling member that bends inwardly of the left and right dies so that both ends of the reinforcing bar are overlapped in the front linear bent portion, and the overlapping portion of the reinforcing bar fixed with the rolling member is press-fitted to the front inclined bending portion on both sides. And a front punch member for bending the linear bent portion, wherein the front punch member is a front punch that presses in to bend the inclined bend portion and the linear bend portion on both front sides of the reinforcing bar, and to operate the front punch back and forth on the work surface. The technical idea is to include a sliding front slider, a front cylinder that operates the front slider, and a front guide rail that guides the front and rear sliding of the front slider by the front cylinder.

A front linear press-fitting surface may be provided at the center of the front punch member to form a linear bent portion of the reinforcing bar, and front inclined press-fitting surfaces may be provided at both sides of the front punch member to form the inclined-bent portion on both sides of the reinforcing bar.

The front punch may be provided with a detent to prevent separation of the reinforcing bar bent to the front inclined press-fitting surface.

According to the present invention implemented by the above-described solution, when the reinforcing bars bent in the shape of '┏┓' are placed on the left die and the right die, the loop-type reinforcing bars are automatically bent by the rear punch member, the rolling member, and the front punch member, so, Even unskilled workers can conveniently bend, improve productivity, and have very useful effects that can be continuously manufactured in the same shape.

1 is a plan view showing the overall form according to an embodiment of the present invention.
Figure 2 is a cross-sectional view showing a cross-section of the line AA line of Figure 1;
Figure 3 is a cross-sectional view showing a cross-section of the BB line cut portion of Figure 1;
4 to 6, FIG. 8, FIG. 10, and FIG. 12 are operational views showing an operating state according to an embodiment of the present invention as a plane.
7, 9, and 11 are operating views showing an operating state according to an embodiment of the present invention in cross section.
13 is a plan view showing a loop-type reinforcing bar.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings in order to fully understand the present invention.

Embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited to the examples described in detail below. This embodiment is provided to more completely explain the present invention to those skilled in the art.

Accordingly, it should be noted that the shapes of the components expressed in the drawings may be exaggerated to emphasize a clearer explanation, and the same members in each drawing are indicated with the same reference numerals.

In addition, detailed descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention may be omitted.

’ 모양의 루프형 철근(10)을 절곡하는 절곡장치에 있어서, 작업면(110)을 갖는 작업테이블(100), 작업면(110)의 좌측에 설치되어 철근(10)의 좌측 직각절곡부(11) 및 좌측 경사절곡부(13)를 성형하도록 형성된 좌측다이(200), 좌측다이(200)에 소정 간격 이격되게 작업면(110)의 우측에 설치되어 철근(10)의 우측 직각절곡부(12) 및 우측 경사절곡부(14)를 성형하도록 형성된 우측다이(300), 좌측다이(200) 및 우측다이(300)의 후방에 양측 직각절곡부(11)(12)가 절곡된 철근(10)이 밀착되도록 고정하는 지그부재(400), 지그부재(400)로 고정된 철근(10)의 양측 직각절곡부(11)(12)를 지지하면서 후방의 양측 경사절곡부(13)(14) 및 선형절곡부(15)를 절곡하도록 압입하는 후방펀치부재(500), 후방펀치부재(500)로 절곡된 철근(10)의 양측 단부가 전방 선형절곡부(15)에서 중첩되도록 좌측다이(200) 및 우측다이(300)의 내측으로 절곡하는 롤링부재(600), 롤링부재(600)로 고정된 철근(10)의 중첩 부분을 압입하여 전방의 양측 경사절곡부(13)(14) 및 선형절곡부(15)를 절곡하는 전방펀치부재(700)를 포함한다.In the loop-type rebar bending device according to an embodiment of the present invention, the left right angle bend portion 11 and the right right angle bend portion 12 bent at right angles, and the right angle bend portions 11 and 12 on both sides are inclined inwardly, respectively. The left and right inclined bends 13 and 14 and the linear bends 15 linearly connecting the inclined bends 13 and 14 on both sides are formed continuously.

In the bending device for bending the 'shaped loop-type reinforcing bar 10, the work table 100 having the work surface 110 is installed on the left side of the work surface 110 and the left right angle bend portion of the reinforcing bar 10 ( 11) and the left die 200 formed to form the left oblique bend portion 13, installed on the right side of the work surface 110 at a predetermined distance from the left die 200, and the right angle bend portion of the reinforcing bar 10 ( 12) and the right die 300 formed to form the right oblique bend portion 14, the left die 200, and the right angle bend portions 11 and 12 on both sides at the rear of the right die 300 are bent reinforcing bars 10 ) Supports the jig member 400 fixed so that the jig member 400 is in close contact with both sides of the reinforcing bar 10 fixed with the jig member 400. And a rear punch member 500 press-fitted to bend the linear bend portion 15, and a left die 200 such that both ends of the reinforcing bar 10 bent by the rear punch member 500 overlap at the front linear bend portion 15. ) And the rolling member 600 bent to the inside of the right die 300, the overlapping portion of the reinforcing bar 10 fixed to the rolling member 600 is press-fitted to form the inclined bends 13 and 14 on both sides of the front side and the linear It includes a front punch member 700 for bending the bent portion 15.

’ 모양으로 형성된다.According to the embodiment of the present invention, the loop-type reinforcing bar 10 is closed without being cut by bending one reinforcing bar 10 into a specific shape.

' is formed in the shape of

Referring to FIG. 13, the loop-type rebar 10 includes a left right angle bend 11 bent at right angles in a '[' shape, a right right angle bend 12 bent at right angles in a ']' shape, and a left right angle bend ( 11), a left inclined bend 13 inclined inwardly, a right inclined bent part 14 inclined inwardly from a right angle bend 12, a left inclined bent part 13 and a right inclined bent part ( 14) is continuously connected to the linear bending portion 15 to form a symmetrical shape in front and back.

The work table 100 is a long rectangular table in front and back, and the work table 100 is provided with a work surface 110 on the upper surface of which the work of bending the reinforcing bar 10 is performed.

1 and 2, a left rolling slot 120 is formed on the left side of the center of the work table 100 to guide the left and right movement of the left pressure feed roll 610, and a right rolling slot 130 is formed on the right side. and guides the left and right movement of the right pressure feed roll 640.

’ 모양으로 형성되어 작업테이블(100)의 작업면(110) 중앙 좌측에 설치된다.The left die 200 is '

It is formed in the shape of ' and is installed on the left side of the center of the work surface 110 of the work table 100.

Referring to FIG. 1, the left die 200 forms the left right angle bending surface 210 for forming the left right angle bend portion 11 of the loop-type reinforcing bar 10 and the left oblique bend portion for forming the left inclined bend portion 13. It is formed in a shape symmetrical back and forth to have a surface 220.

’ 모양으로 형성되어 작업테이블(100)의 작업면(110) 중앙 우측에 설치된다.The right die 300 is '

It is formed in the shape of ' and is installed on the right side of the center of the work surface 110 of the work table 100.

Referring to FIG. 1 , a right die 300 forms a right right angle bending surface 310 forming the right angle bending portion 12 of the loop-type rebar 10 and a right inclined bending portion forming the right inclined bending portion 14. It is formed in a shape symmetrical back and forth to have a surface 320.

The jig member 400 is installed at the rear of the work table 100 and pushes and fixes the reinforcing bar 10, both ends of which are bent at right angles, to the left die 200 and the right die 300.

Referring to FIG. 1, the jig member 400 includes a pressure jig 410 and a pressure jig ( 410) includes a jig cylinder 420 that operates.

As shown in FIG. 4, the pressure jig 410 is installed on both left and right sides of the back of the work surface 110 to push and fix the left and right sides of the rebar 10 bent in the shape of '┏┓'.

The jig cylinder 420 is connected to both pressure jigs 410, respectively.

The rear punch member 500 supports the right angle bends 11 and 12 on both sides of the reinforcing bar 10 and press-fits them to bend the inclined bends 13 and 14 and the linear bends 15 on both sides of the rear side.

Referring to FIG. 1, the rear punch member 500 includes a rear punch 510, a rear punch ( 510), the rear slider 520 sliding forward and backward on the working surface 110, the rear cylinder 550 operating the rear slider 520, and the rear slider 520 sliding forward and backward by the rear cylinder 550. The rear guide rail 530 that guides the rear guide rail 530 and the rear slider 520 guided along the rear guide rail 530 are interlocked with the sliding to support the right angle bends 11 and 12 on both sides of the reinforcing bar 10. (540).

A rear linear press-fitting surface 511 is provided at the center of the rear punch 510 to form the linear bent portion 15 of the reinforcing bar 10, and rear inclined press-fitting surfaces 512 are provided on both left and right sides to form the reinforcing bar 10 Forming the obliquely bent portions 13 and 14 on both sides of the

The rear slider 520 is formed in a flat plate shape, a rear punch 510 is connected to the center, and rear sliding rails 521 are formed on both left and right sides to slide in the front and rear directions along the rear guide rail 530.

The rear cylinder 550 is installed on the work surface 110 so as to be connected to the center of the rear end of the rear slider 520 and operates the rear slider back and forth.

The rear guide rails 530 are installed on both left and right rear sides of the work surface 110, respectively. A rear rail slit 531 is formed on the inner surface of the rear guide rail 530 to guide the forward and backward sliding of the rear sliding rail 521 of the rear slider 520 .

The support roll 540 is rotatably connected to the brackets 541 installed on both sides of the front end of the rear slider 520, and moves sequentially when the rear slider 520 moves forward, and the inclined bends 13 on both sides of the reinforcing bar 10 (14) will be firmly supported.

The rolling member 600 is bent inwardly of the left die 200 and the right die 300 so that both ends of the reinforcing bar 10 overlap at the front linear bent portion 15 .

1 and 2, the rolling member 600 presses the left end of the reinforcing bar 10 toward the inside of the left die 200 to bend the left rolling slot 120 formed on the work table 100. The right side formed on the work table 100 to bend the right end of the reinforcing bar 10 bent by the left side press-in roll 610 moving left and right along the left side and press-in the right end of the reinforcing bar 10 to the inside of the right die 300 and bend it. The left and right horizontal cylinders 630 and 660 respectively move the right pressure-in roll 640, the left pressure-in roll 610, and the right pressure-in roll 640 left and right along the rolling slot 130, left and right. It includes a lifting cylinder 670 that simultaneously lifts the press roll 610 and the right press roll 640 .

The left press roll 610 is rotatably installed on the upper part of the left slider 620 disposed to be movable left and right and up and down at the lower part of the work table 100 .

A left sliding rail 621 is formed at the bottom of the left slider 620 to be slidably coupled in the left and right directions along the left and right guide rails 672 to be described later, and a left elevation rail 622 is formed on the left side to make the left horizontal It is movably coupled to the cylinder rod 631 of the cylinder 630.

The right press roll 640 is rotatably installed on the upper part of the right slider 650 disposed to be movable left and right and up and down at the lower part of the work table 100 .

A right sliding rail 651 is formed at the bottom of the right slider 650 to be slidably coupled in the left and right directions along the left and right guide rails 672 to be described later, and a right lift rail 652 is formed on the right side to move the right horizontal cylinder. It is movably coupled to the cylinder rod 661 of 660.

The left horizontal cylinder 630 is a component that moves the left slider 620 in the left and right directions, and the left lift rail of the left slider 620 is located at the outer end of the cylinder rod 631 provided in the left horizontal cylinder 630. 622 is coupled to be able to move up and down.

The right horizontal cylinder 660 is a component that moves the right slider 650 in the left and right directions, and the right lifting rail of the right slider 650 is located at the outer end of the cylinder rod 661 provided in the right horizontal cylinder 660. 652 is coupled to be able to move up and down.

The lifting cylinder 670 is disposed at the lower center of the work table 100 and functions to simultaneously lift the left pressure feed roll 610 and the right pressure feed roll 640 . Left and right guide rails 672 formed long in the left and right directions are connected to the front end of the cylinder rod 671 provided in the lift cylinder 670, and the left slider 620 and the right slider 650 coupled to be movable in the left and right directions are connected. raise or lower at the same time.

The front punch member 700 press-fits the overlapping portion of the reinforcing bar 10 so as to bend the inclined bends 13 and 14 and the linear bends 15 on both sides of the front side.

Referring to Figure 1, the front punch member 700 is a front punch 710, a front punch ( 710), a front slider 720 that slides back and forth on the working surface 110 to operate, a front cylinder 750 that operates the front slider 720, and a forward and backward sliding of the front slider 720 by the front cylinder 750. It includes a front guide rail 730 for guiding.

A front linear press-fitting surface 711 is provided at the center of the front punch 710 to form the linear bent portion 15 of the reinforcing bar 10, and front inclined press-fitting surfaces 712 are provided on both left and right sides to form the reinforcing bar 10 Forming the obliquely bent portions 13 and 14 on both sides of the

Referring to FIG. 3 , the front punch 710 is provided with a detent 740 to prevent the separation of the reinforcing bar 10 bent to the front inclined press-fitting surface 712 on both sides. The detent 740 serves to prevent the reinforcing bar 10 from escaping outside before reaching the left die 200 and the right die 300 by the pressing force of the front punch 710 .

The front slider 720 is formed in a flat plate shape, a front punch 710 is connected to the center, and front sliding rails 721 are formed on both left and right sides to slide in the front and rear directions along the front guide rail 730.

The front cylinder 750 is installed on the work surface 110 so as to be connected to the center of the rear end of the front slider 720 and operates the front slider back and forth.

The front guide rails 730 are installed on both left and right sides of the front of the work surface 110, respectively. A front rail slit 731 is formed on the inner surface of the front guide rail 730 to guide the forward and backward sliding of the front sliding rail 721 of the front slider 720.

The action according to the embodiment of the present invention configured as described above will be described in detail with reference to the accompanying drawings.

First, as shown in FIG. 4, the reinforcing bars 10 bent in the shape of '┏┓' are disposed so as to come into close contact with the left die 200 and the right die 300.

Next, the pressure jig 410 operated by driving the jig cylinder 420 pushes and fixes the reinforcing bar 10 in the direction of the left die 200 and the right die 300, as shown in FIG.

And when the rear cylinder 550 is driven, the rear slider 520 slides in the direction of the arrow shown in FIG. 6 and presses the inclined bends 13 and 14 and the linear bends 15 on both sides of the rear of the reinforcing bar 10. bend into

At this time, the support roll 540 moves along with the sliding of the rear slider 520 to firmly support the inclined bent portions 13 and 14 on both sides of the reinforcing bar 10.

Then, when the left and right guide rails 672 are operated by driving the lift cylinder 670, as shown in FIG. 7, the left slider 620 and the right slider 650 are simultaneously lifted, and the left press roll 610 and the right press fit The roll 640 protrudes upward from the work surface 110 through the left rolling slot 120 and the right rolling slot 130, respectively.

Subsequently, when the left horizontal cylinder 630 is driven, the left slider 620 moves in the direction of the arrow shown in FIG. 9, and the left press roll 610 moves the left rolling slot 120 as shown in FIG. While moving along, the left end of the reinforcing bar 10 is press-fitted in the inner direction of the left die 200 and bent.

Subsequently, when the right horizontal cylinder 660 is driven, the right slider 650 moves in the direction of the arrow shown in FIG. 11, and the right press roll 640 follows the right rolling slot 130 as shown in FIG. While moving, the right end of the reinforcing bar 10 is press-fitted into the right die 300 and bent.

Finally, when the front cylinder 750 is driven, the front slider 720 slides in the direction of the arrow shown in FIG. Since is bent by press-fitting, manufacturing of the loop-type reinforcing bar 10 shown in FIG. 13 is completed.

Therefore, according to an embodiment of the present invention, when the rebar 10 bent in the shape of '┏┓' is placed on the left die 200 and the right die 300, the rear punch member 500, the rolling member 600 and the front Since the loop-type reinforcing bar 10 is automatically bent by the punch member 700, there is an advantage in that even unskilled workers can conveniently bend, improve productivity, and continuously manufacture the same shape.

The embodiments of the present invention described above are merely exemplary, and those skilled in the art will appreciate that various modifications and equivalent other embodiments are possible therefrom.

Therefore, it will be well understood that the present invention is not limited to the forms mentioned in the detailed description above.

Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims. It is also to be understood that the present invention includes all modifications, equivalents and alternatives within the spirit and scope of the present invention as defined by the appended claims.

10: rebar 100: work table
200: left die 300: right die
400: jig member 500: rear punch member
600: rolling member 700: front punch member

Claims (3)

Left and right right angle bends bent at right angles, left and right oblique bends each inclined inward from both right angle bends, and linear bends linearly connecting the oblique bends on both sides are formed continuously.

In the bending device for bending the 'shaped loop-type reinforcing bar,
A work table having a work surface, a left die installed on the left side of the work surface of the work table and formed to form the left right angle bend and the left oblique bend of the reinforcing bar, and a left die installed on the right side of the work surface to be spaced apart from the left die by a predetermined distance. a right die formed to form the right right angle bent portion and the right oblique bend portion of the reinforcing bar, a jig member for fixing the reinforcing bar in which the right angle bend portion is bent on both sides to the rear of the left die and the right die so that the reinforcing bars are in close contact with each other, and the jig member A rear punch member that is press-fitted to bend both oblique bends and linear bends at the rear side while supporting the right angle bends on both sides of the fixed reinforcing bar, and both ends of the reinforcing bar bent by the rear punch member are in the front linear bends. A rolling member that bends inwardly of the left and right dies so as to overlap, and a front punch member that bends the oblique bent portion and the linear bent portion on both sides of the front by pressing the overlapping portion of the reinforcing bar fixed with the rolling member,
The front punch member,
A front punch that presses in to bend the inclined and linear bends on both sides of the reinforcing bar, a front slider that slides back and forth on the working surface to operate the front punch, a front cylinder that operates the front slider, and a front cylinder Loop-type rebar bending device characterized in that it comprises a front guide rail for guiding the forward and backward sliding of the front slider. The method of claim 1,
In the center of the front punch member, a front linear press-fitting surface is provided to form the linear bent portion of the reinforcing bar, and on both sides of the front punch member, front inclined press-fitting surfaces are provided to form the inclined bent portion on both sides of the reinforcing bar. Loop type rebar bending device. The method of claim 2,
Loop-type reinforcing bar bending device, characterized in that the front punch is provided with a detent to prevent the separation of the reinforcing bar bent to the front inclined press-in surface.

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