WO2016186372A1

WO2016186372A1 - Bending apparatus

Info

Publication number: WO2016186372A1
Application number: PCT/KR2016/004992
Authority: WO
Inventors: 김천식
Original assignee: 주식회사 유림모비스; 김천식
Priority date: 2015-05-20
Filing date: 2016-05-12
Publication date: 2016-11-24
Also published as: CN107635681B; JP6515368B2; CN107635681A; JP2018518373A; KR101542521B1

Abstract

The present invention relates to a bending apparatus characterized by comprising: a plurality of bending racks having bent surfaces formed thereon and formed of upper racks and lower racks lying atop one another on a base frame, in order to fix a workpiece on an edge portion thereof and form a bent portion on a part of the workpiece; a support guiding plate formed on lower portions of the bending racks and having guide holes formed at certain intervals apart along the bent surfaces of the bending racks; a pillar body provided at one side of the support guiding plate and provided with a supporting piece for supporting the lower surfaces of the bending racks; elevating means having guide rods projecting upward from one side of the support guiding plate and transfer rods provided spaced apart at one side of the guide rods passing through the bending racks, and for transferring the upper racks vertically upward along the guide rods by means of an elevating action of transfer cylinders coupled to ends of the transfer rods and provided vertically on one side of the transfer rods; bend-forming means for moving along the guide holes of the support guiding plate and forming a bent portion by pressing the workpiece; power transfer means provided at the upper portion of the base frame to move the bend-forming means along the guide holes; and a controller for controlling the elevating means and the power transfer means. Thus, according to the present invention, because the bending racks include mutually separable upper and lower racks, upper jigs and lower jigs are formed on the upper racks and the lower racks, respectively, and the upper and lower jigs can be selectively coupled according to the height of the workpiece, the effect can be realized that workpieces having varying heights can be formed at the same time. In addition, because the workpieces are pressed and fixed at the middle portions of the bending racks, a pressing means is formed to be capable of forming bent portions of various shapes in a workpiece, and the shapes can be widely varied together with the upper and lower jigs, the effect can be realized that a plurality of bent portions can be formed having different radii of curvature.

Description

Banding device

The present invention relates to a bending device, and more particularly, the workpiece is mounted on the edge of the bending die formed on the upper portion of the base frame, the guide hole of the support guide plate provided on the lower portion of the bending die The bending molding means for pressurizing the workpiece while moving to form the bent portion is operated by the power transmission means provided in the lower portion of the support guide plate to automate the bending operation, and the bending mold is formed on the support body protruding upward from the support guide plate. It is provided with a plurality, and consists of an upper mold to be moved upward by the lifting means, and a lower mold fixed to the vertical frame, the upper jig and the lower jig is coupled to the upper jig and lower jig, respectively, the workpiece of the same height as well as other height It is possible to mold a plurality of workpieces at the same time, the bending molding means a plurality of molding cylinders It relates to a bending device for forming a molded cylinder portion that can be formed to bend the bent portion on the workpiece.

In general, a curtain rail to which the curtain is fixed is formed in order to block light coming from the windows of the interior or to prevent the interior from being seen from the outside.

Such curtain rails may be formed in a straight line. However, in the case of a large car such as a truck, a shower room, a hospital inpatient room, and a reading room, the curtain rails are formed with curved portions to block the light and to secure each independent space. Will be installed.

Accordingly, the curtain rail is band-molded according to the place where it is to be extruded from metal and then installed. In order to band the curtain rail to a desired shape, the curtain rail is usually extruded into a banding die having an inner concave molding groove formed on one surface thereof. In the state where the curtain rail of the bar shape is placed, the bending punch formed in the shape corresponding to the molding groove of the bending die is pressed in the direction of the molding groove so as to be banded according to the place where the curtain rail is to be installed.

However, in the case of forming the bent parts symmetrical to each other by using a conventional general bending device, by bending the one side of the curtain rail and then bending the other side, it is very important to manufacture the curtain rails in which the bent parts are uniformly symmetrical. There was a difficult problem.

In particular, in the case of the conventional banding device, even after the bar-shaped curtain rail is installed on the banding die, the worker operates the bending punch manually, thereby reducing work efficiency, and also causing a high rate of defects of the banded curtain rail. There was also a problem that the work speed is also slow, the curtain rail productivity is lowered.

This problem has occurred in the bending molding of metal pipes applied in various fields as well as curtain rails.

As a result of overcoming the above problems, the applicant has proposed a registered patent No. 10-1017810 (hereinafter referred to as a "banding device"). It relates to a banding device for symmetrically banding both ends of a workpiece; A mounting groove provided on an upper portion of the base frame to which a bar-shaped workpiece is mounted is formed along an edge, and first and second protrusion bend surfaces for forming the first and second bent portions on both sides of the workpiece are symmetrical. A bending mold formed to be; A workbench installed at the upper part of the bent mold and spaced apart by a predetermined distance along the first and second protrusion bent surfaces of the bent mold; First and second bending molding means for symmetrically moving along the first guide hole of the workbench to press the exposed surface of the workpiece to form the first and second bent portions, respectively; And a power transmission means for moving the first and second bending molding means along the first guide hole.

By using the bending device according to the present invention as described above, when the workpiece is banded, the workpiece is molded so as to be symmetrical when the workpiece is bent, so that the defect rate is low, and the production speed is improved, thereby improving productivity.

However, in the case of the pre-registered patent, it takes a lot of time to produce a large amount of molded workpieces, there is a problem that can not control the height of the mounting groove of the bending die can only mold the workpiece to fit the height of the mounting groove.

In addition, there was also a problem in that a plurality of bent portions having different curvatures could not be formed on the workpiece.

The present invention devised to solve the conventional problems as described above, is provided with a plurality of bent frame on the support body protruding upward from the upper guide guide plate, so as to press each of the workpieces seated on the edge of each bent frame The purpose of the present invention is to provide a plurality of molding cylinders having a pressure roller, which are coupled to a moving member moving along a guide hole of the support guide plate, to simultaneously mold a plurality of workpieces.

The bending mold is provided with a top and bottom mold that can be separated from each other, the upper jig and the lower jig is formed in the upper jig and the lower jig, respectively, by selectively coupling the upper and lower jig according to the height of the workpiece to obtain a workpiece having a variety of heights Its purpose is to allow molding at the same time.

In addition, the middle portion of the bending die is formed by pressing means for pressing and fixing the workpiece, and at the same time to form a bent portion of various forms on the workpiece to be changed in various forms with the upper and lower jig Another object is to be able to form a plurality of bends having different curvature radii.

The banding device of the present invention for solving the above object is composed of an upper mold and a lower mold nested up and down on an upper portion of the base frame, and fixing the workpiece to the edge portion to form a bent portion on the workpiece. A plurality of bending dies having bending surfaces formed thereon; A support guide plate formed at a lower portion of the bending mold and spaced apart from the bending surface of the bending mold by a predetermined distance; A support body provided on one side of the support guide plate and provided with a support for supporting a lower surface of the bent mold; A guide rod protruding upward from one side of the support guide plate and a transfer rod spaced apart from one side of the guide rod penetrate the bending mold, and are coupled to an end of the transfer rod to move up and down of the transfer cylinder provided vertically at one side of the transfer rod. Lifting means for transferring the upper mold vertically upward along the guide rod; Bending molding means for pressing the work piece while moving along the guide hole of the support guide plate to form a bent portion; A power transmission means provided on an upper portion of the base frame and moving the bending molding means along the guide hole; It characterized in that it comprises a control unit for controlling the lifting means and the power transmission means.

The upper mold of the bending die is made of an upper plate and an upper jig bolted to a lower surface of the upper plate. The lower die is made of a lower plate and a lower jig bolted to an upper surface of the lower plate. It is characterized in that the upper surface of the flange is provided with a bolt hole formed on the outer circumferential surface is bolted to the transfer rod to the flange, the support of the support body is bolted to the lower surface of the lower plate is fixed.

The support guide plate may further include pressing means for pressing the workpiece between the upper mold and the lower mold at the center of the bending mold to prevent the workpiece from being separated from the bending mold during bending. do.

On the other hand, the power transmission means is installed in the center of the base frame, the cylinder means for advancing the piston forward and backward; A rack member provided at an end of the piston, the rack member being integrally provided on one or both sides of the pair of auxiliary rails; A pinion rotatably arranged on a drive shaft installed between the base frame and the support guide plate, wherein the rack is engaged; A drive sprocket each integrally rotating with the pinion; A plurality of driven sprockets interlocked with the driving sprockets and provided in one direction of the bending mold; The drive sprocket and the driven sprocket are linked to each other, characterized in that it is composed of a chain fixed to the bending molding means on one side.

According to the present invention, a plurality of bending molds are provided on the support body protruding upward from the support guide plate, and a plurality of molding cylinders having a pressure roller are provided to press each of the workpieces seated on the edge of each bending mold. The molded cylinder part is coupled to the moving member moving along the guide hole of the support guide plate, thereby having the effect of simultaneously molding a plurality of workpieces.

The bent mold is provided with a top and bottom mold which can be separated from each other, and the top and bottom jigs are formed on the top and bottom molds, respectively, to selectively combine the top and bottom jigs according to the height of the workpiece. There is an effect that can be molded at the same time.

In addition, the middle portion of the bending die is formed by pressing means for pressing and fixing the workpiece, and at the same time to form a bent portion of various forms on the workpiece to be changed in various forms with the upper and lower jig In addition, it is also possible to form a plurality of bent portions having different curvature radii.

1 is a perspective view of the bending device of the present invention.

2 is a front view of the bending device of the present invention.

Figure 3 is a perspective view of the main portion of the bending device of the present invention.

Figure 4 is a cross-sectional view of the bending molding means of the bending device of the present invention.

5a to 5b is an operating state of the lifting means of the bending device of the present invention.

Figure 6 is a side view of the banding device of the present invention.

Figure 7 is an operating state of the power transmission means of the banding device of the present invention.

8a to 8c is an operating state of the banding device of the present invention.

Figure 1 is a perspective view of the bending device of the present invention, Figure 2 is a front view of the bending device of the present invention, Figure 3 is a perspective view of the main portion of the bending device of the present invention, Figure 4 is a bending forming means of the bending device of the present invention 5A to 5B are sectional views of the lifting means of the bending device of the present invention, and FIG. 6 shows a side view of the bending device of the present invention.

As shown in Figures 1 to 4, the bending device 1 of the present invention is composed of the upper mold 110 and the lower mold 120, which is stacked on top of the base frame 10, the workpiece A plurality of bending molds 100 having a bending surface 101 for fixing the bending portion 21 to a part of the workpiece 20 by fixing the edge portion 20; A support guide plate 200 formed at a lower portion of the bending die 100 and spaced apart by a predetermined distance along the bending surface 101 of the bending die 100; A support body (300) provided at one side of the support guide plate (200) and provided with a support (310) for supporting a lower surface of the bent mold (100); A guide rod 410 protruding upward from one side of the support guide plate 200 and a transfer rod 420 spaced apart from one side of the guide rod 410 penetrate the bending mold 100, and the transfer rod Combined with the end of the 420 to transfer the upper mold 110 vertically upward along the guide rod 410 by the lifting action of the transfer cylinder 430 provided vertically on one side of the transfer rod 420 Elevating means (400); Bending molding means (500) for forming the bent portion (21) by pressing the workpiece (20) while moving along the guide hole (210) of the support guide plate (200); A power transmission unit 700 provided on an upper portion of the base frame 10 to move the bending forming means 500 along the guide hole 210; It characterized in that it comprises a control unit 900 for controlling the lifting means 400 and the power transmission means 700.

In this case, the workpiece 20 may be applied to a bar-shaped curtain rail as well as pipes and metal wires applied to various industries.

In addition, the bending molding means 500 is characterized in that provided on one side or both sides of the base frame (10).

That is, the bending molding means 500 is provided as the first bending molding means 500a and the second bending molding means 500b which are symmetrically moved to both sides along the guide hole 210 of the support guide plate 200. The bent portion 21 is molded on both sides of the workpiece 20.

In addition, the upper mold 110 of the bending mold 100 is composed of an upper plate 111, the upper jig 112 is bolted to the lower surface of the upper plate 111, the lower mold 120 is a lower plate (121), and the lower jig 122 is bolted to the upper surface of the lower plate 121, the upper surface of the upper plate 111 is provided with a flange 113 formed with a bolt hole (113a) on the outer peripheral surface It is characterized in that the conveying rod 420 is bolted to the flange 113, the support 310 of the support body 300 is bolted to be fixed to the lower surface of the lower plate 121.

In addition, the bent mold 100 is formed in plural in the vertical direction so as to form a plurality of workpieces 20 at the same time.

By the above configuration, the upper mold 110 coupled with the transfer rod 420 is moved up and down by the transfer cylinder 430 of the elevating means 400, and the lower mold 120 is It is fixed to the support body 300 by the support 310 of the support body 300, the upper mold 110 and the lower mold 120 can be separated from each other.

At this time, the transfer cylinder 430 is formed of any one of the hydraulic or pneumatic cylinder.

Accordingly, the upper jig 112 and the lower jig 122 may be replaced by releasing the bolts of the upper plate 111 and the upper jig 112 and the lower plate 121 and the lower jig 122.

That is, the bent portion 21 of the workpiece 20 is formed in the same shape as the curved surface formed on the stepped portion, the bent portion having a various radius of curvature by replacing the upper jig 112 or the lower jig 122 (21) can be formed.

In addition, the upper and lower jig (112, 122) is formed so that the circumference protrudes outward from the periphery of the upper plate 111 and the lower plate 121, any one of the upper jig 112 or the lower jig 122 is stepped. Is formed so that the workpiece 20 is seated on the stepped portion.

In addition, the bending is formed on the outside of the bending forming means 500, coupled to the plurality of connection support members 610 protruding outward from the connecting plate 320 coupled to the upper surface of the support body 300 and the bending A guide member 600 for supporting the upper end of the forming means 500 is further provided.

In addition, the guide member 600 is formed of a plate having the same radius of curvature as the bent surface 101 of the bending die 100, the connection support member 610 is one bar (3) It is fixed to the connecting plate 320, the other end is respectively coupled to both sides and the middle portion of the guide member 600 protrudes outward in a fan shape.

In addition, the support body 300 is preferably formed symmetrically three by both sides of the rear portion of the bending die 100 so as to support the bending die 100.

That is, the support 310 of the support body 300 is formed to protrude forward and laterally about the bent surface 101 of the bent mold 100 so as to support the bent mold 100.

At this time, the support 310 is "

"As a shape is coupled by a method such as welding so as to protrude in the direction of the bending die 100 on one side of the support body 300, the number of the bending die 100 in the longitudinal direction of the support body 300 It is preferably formed.

The guide rods 410 and the transfer rods 420 are installed vertically upward from the support guide plate 200, and are formed through the bent molds 100, respectively, to both sides as the support body 300. Three are formed each.

At this time, as described above, the transfer rod 420 is bolted to the flange 113 of the upper mold 110, the support 310 is bolted to the lower portion of the lower mold 120 is the upper The mold 110 may move up and down along the guide rod 410 together with the transfer rod 420 by the elevating means 400.

On the other hand, the lifting means 400, as shown in Figures 5a to 5, the end of the transfer rod 420 is first and second fixing plate 411 integrally coupled; Horizontal bars 413 coupled to lower surfaces of the first fixing plate 411 and the second fixing plate 412 so that the first and

second fixing plates

411 and 412 are connected to each other; It is coupled to the lower side of one side of the horizontal bar 413, it consists of a lifting plate 414 is in close contact with the piston end of the transfer cylinder 430.

In addition, the first and

second fixing plates

411 and 412 are formed in a "b" shape, and the ends of the transfer rods 420 are coupled to both ends and bent portions by welding or the like.

Accordingly, when the piston 431 of the transfer cylinder 430 is raised, the end of the piston 431 presses the lifting plate 414 to move upward, and the horizontal bar coupled with the lifting plate 414. As the 413 rises, the first and

second fixing plates

411 and 412, the transfer rod 420, and the upper mold 110 are vertically moved upward, so that the upper and

lower molds

110 and 120 are separated from each other. The upper and

lower jigs

112 and 122 may be replaced or the workpiece 20 may be inserted and removed.

And, the configuration of the bending molding means 500 of the bending device 1 of the present invention in more detail as follows.

The bending molding means 500 protrudes upward from the base frame 10 to move along the guide hole 210 of the support guide plate 200, and a plurality of horizontal plates 511 in the longitudinal direction to the outside are integrally formed. Forming movement member 510 and the pressure roller 522 that is seated on the upper portion of the horizontal plate 511, the pressure roller 522 to press the close contact with the workpiece 20 fixed to the bending mold 100 at the end The cylinder 521 is composed of a plurality of molding cylinder 520 formed in the longitudinal direction of the movable member 510, the lower end of the movable member 510 is in close contact with the upper surface of the base frame 10 The roller part 540 is formed, and the second roller part 550 in close contact with the upper surface of the supporting guide plate 200 is formed on the lower surface of the horizontal plate formed at the lowermost part of the horizontal plate 511 of the movable member 510. It is provided.

Therefore, the weight of the bending forming means 500 is dispersed by the first and

second roller parts

540 and 550 so that it can be stably moved.

In addition, between the first roller portion 540 and the moving member 510, and between the second roller portion 550 and the horizontal plate 511, a shock absorbing member (541, 551) of rubber or silicon material is formed, respectively. It is desirable to be.

On the other hand, the first and second roller parts (540, 550) are "

A pair of

cylindrical rollers

543 and 553 are coupled by roller shafts formed on the roller supports 542 and 552, and the roller supports 542 and 552 are free to rotate in the movable member 510 and the horizontal plate 511. It is axially coupled to each other so that the bending forming means 500 can be moved smoothly even in the curved portion.

At this time, the horizontal plate 511 is formed in the same number as the number of the bending mold 100, the molding cylinder 520 is characterized in that one or more provided in the movable member 510.

That is, as shown in Figures 1 to 2, the molding cylinder 520 is formed of the first molding cylinder 520a and the first molding cylinder 520a integrally formed in the moving member 510 The second molding cylinder portion 520b provided in parallel with the first molding cylinder portion 520a may be formed at one side to form two bent portions 21 on the raw material 20.

In addition, the pressure roller 522 is formed at the end of the roller fixing plate 523 advancing back and forth along the roller feed rails 516 formed on the horizontal plate 511, respectively.

At this time, the roller conveying rail 516 is formed so as to face each other in the "c" shape is moved forward and backward along the roller conveying rail 516 with the roller fixing plate 523 is inserted.

The first and

second molding cylinders

520a and 520b sequentially press the workpiece 20 to form two bent portions 21 on a part of the workpiece 20.

At this time, the molding cylinder 521 is formed of a pneumatic cylinder.

In addition, the support guide plate 200 presses the workpiece 20 between the upper mold 110 and the lower mold 120 at the center of the bent mold 100 so that the workpiece 20 is pressed during bending. The pressing means 800 is further provided to prevent the departure from the bending mold 100, the pressing means 800 protrudes upward from the support guide plate 200, the fastener 811 on one side A pressure support 810 which is formed and is bolted to the pressure port 820 for pressing the work 20; It is formed on the other side of the pressing support 810, it is composed of a pressing cylinder 830 for adhering the pressing support 810, the pressure port 820 in close contact with the workpiece 20.

At this time, the pressing support 810 is formed of an H-beam (H-beam), the fastener 811 is a metal plate through which the bolt hole 811a penetrates up and down spaced one side of the pressing hole 820 The bolt and nut are combined in the inserted state. Of course, the pressing hole 820 is formed with a bolt insertion hole (820a) is inserted into the bolt, the number of the bending die 100 is formed in the plurality of the pressing support 810.

The pressure port 820 presses the workpiece 20 to be in close contact with the upper and lower jigs 122 as well as a step formed in any one of the upper jig 112 or the lower jig 122. The shape of the circumference is replaced by various pressure ports 820 according to the shape of the part to serve to form a part of the workpiece 20.

In addition, a plurality of cylinder support plates 812 on which the pressure cylinder 830 is seated is coupled to the side of the pressure support 810 by long bolts, and the pressure cylinder 830 is two to three spaced apart upward and downward. It is preferably formed with a pneumatic cylinder.

At this time, the lower end of the pressing support 810 is provided with a first feed roller 813 in close contact with the upper surface of the support guide plate 200, the upper end of the connecting bar 815 fixed to both ends of the support body 300 The second support roller 814 is provided in close contact with the guide rail 816 protruding in the direction of the pressing support 810 at the center of the pressing support 810 is easy to move forward, backward.

At this time, the control unit 900 to control the pressing means 800 for advancing forward and backward in the direction of the bending die 100, as well as the elevating means 400, the power transmission means 700. do.

In addition, the control unit 900 is provided with a plurality of buttons, may be provided on the bottom surface in such a way that the operator presses the button by foot.

On the other hand, Figure 7 shows an operating state diagram of the power transmission means of the banding device of the present invention.

As shown in Figure 7, the power transmission means 700 is installed in the center of the base frame 10, the cylinder means for driving the piston 711 forward and backward (710); A rack member 720 provided at an end of the piston 711 and provided with a rack 722 integrally with a pair of auxiliary rails 721; A pinion 730 rotatably arranged on a drive shaft 731 installed between the base frame 10 and the support guide plate 200, wherein the rack 722 is engaged; A drive sprocket 740 which is integrally rotated with the pinion 730, respectively; A plurality of driven sprockets 750 interlocked with the driving sprockets 740 and provided in one direction of the bent mold 100; The drive sprocket 740 and the driven sprocket 750 is interlocked, characterized in that consisting of a chain 760 to which the bending molding means 500 is fixed.

At this time, the cylinder means 710 is installed in the center of the upper surface of the base frame 10, the piston 711 is protruded toward the front is formed of a hydraulic cylinder, the pinion of the power transmission means (700) 730, the driving sprocket 740, the driven sprocket 750 and the chain 760 is characterized in that formed on one side or both sides of the rack member (720).

That is, as shown in FIG. 7, first and

second racks

722a and 722b are formed on one side of the pair of auxiliary rails 721, respectively, and the first and

second racks

722a and 722b. Is rotatably arranged on the first and second drive shafts (731a, 731b) installed between the base frame 10 and the support guide plate 200.

In addition, the pinion 730 is formed of first and

second pinions

730a and 730b into which the first and

second racks

722a and 722b are engaged, respectively, and the driving sprocket 740 is formed of the first and

second pinions

730a and 730b. The first and second driving

sprockets

740a and 740b are integrally rotated with the

second pinion

730a and 730b, and the driven sprocket 750 is interlocked with the first driving sprocket 740a and is bent. A plurality of first driven sprockets (750a) provided in one direction of (100); Interlocked with the second driving sprocket 740b and formed of a plurality of second driven sprockets 750b provided in the other direction of the bent mold 100.

In addition, the chain 760 is a first chain 760a in which the first driving sprocket 740a and the first driven sprocket 750a are interlocked, and the first bending molding means 500a is fixed to one side thereof; The second driving sprocket 740b and the second driven sprocket 750b interlock with each other, and the second bending molding means 500b is fixed to one side and is composed of a second chain 760b.

In addition, a plurality of first and second driven

shafts

751a and 751b are provided at the rear of the first and

second driving shafts

731a and 731b, and on the first and second driven

shafts

751a and 751b. Rotation of the first and second driven

sprockets

750a and 750b interlocked with the first and

second chains

760a and 760b is freely arranged.

When the first and second driving

sprockets

740a and 740b are rotated by the above structure, the first and second driven

sprockets

750a and 750b rotate together, and the first and second chains 760a. When the fixing member 510 constituting the first and second bending molding means 500a and 500b is fixed to the 760b, the first and

second chains

760a and 760b move in interlocked motion. The first and second bending molding means (500a, 500b) is to move.

In addition, upper and lower rollers 723 and 724 are respectively provided on upper and lower sides of the rack member 720, and the upper and lower rollers 723 and 724 are seated, respectively, so that the rack member 720 is moved forward and backward horizontally. A lower rail 725 is provided on the base frame 10 so that the first rail fixing plate 727 and the first rail fixing plate 727 through which the piston 711 passes in front of the cylinder means 710 are provided. An upper roller 726 having both ends fixed between the second rail fixing plates 728 formed to be spaced apart from the front by a predetermined interval is provided, and the auxiliary roller 729 that is in close contact with the upper surface of the auxiliary rail 721 and rotates. ) Is provided on the auxiliary roller support 770 fixed to the base frame 10.

Due to the structure as described above, the rack member 720 is stably moved forward and backward while keeping the horizontal, and the first and

second racks

722a and 722b of the rack member 720 by the auxiliary roller 729. ) Can be moved forward and backward by keeping the first and

second pinions

730a and 730b horizontally engaged with each other.

Hereinafter, an operation process of the bending device 1 according to the present invention will be described.

At this time, the bending device 1 according to the present invention describes a process in which the two bent parts (21, 22) are formed in the workpiece 20.

8A to 8C show an operation state diagram of the bending device of the present invention.

First, the workpiece 20 having a bar shape is formed between the upper mold 110 and the lower mold 120 of the plurality of bending molds 100 fixed to the upper portion of the base guide plate 200 of the base frame 10. Insert it.

In this case, the workpiece 20 is seated on the edge of the lower mold 120 in the state in which the upper mold 110 is moved upward and the upper mold 110 is moved downward so that the workpiece 20 is the upper portion. It is to be fixed between the mold 110 and the lower mold (120).

At this time, the upper and

lower jigs

112 and 122 are selectively replaced according to the height of the workpiece 20.

In addition, the pressure port 820 is advanced by pushing the pressure support 810 bolted to the pressure port 820 by the pressure cylinder 830 of the pressure means 800 formed in the middle of the support guide plate 200. The work 20 is pressurized and fixed.

In such a state, when driving the cylinder means 710 of the power transmission means 700, the piston 711 of the cylinder means 710 is advanced while the rack member 720 formed integrally with the piston 711 is The first and

second racks

722a and 722b formed on both sides of the rack member 720 are advanced, and the first and

second racks

722a and 722b are engaged with each other. The

pinions

730a and 730b rotate, thereby causing the first and

second drive sprockets

740a and 740b to which the first and

second pinions

730a and 730b are condensed, respectively.

In addition, the first and second driven

sprockets

740a and 740b and the first and second driven

sprockets

750a and 750b interlocked with the first and

second chains

760a and 760b rotate together. The

second chains

760a and 760b move, and the first and second bending molding means 500a and 500b connected to the first and

second chains

760a and 760b guide holes of the support guide plate 200. Will move along 210.

At this time, while the piston of the first molding cylinder 520a advances simultaneously, the first pressing roller 521a formed at the end of the piston moves while press-contacting the workpiece 20, and the bending die 100 The bent portion 21 is formed on the workpiece 20 while passing through the bent surface 101.

In addition, while the piston of the second molding cylinder 520b advances simultaneously, the second pressing roller 521b is moved while pressing and closely contacting the workpiece 20, and the bending surface 102 of the bending mold 100 is moved. The other bend 22 is formed in the workpiece 20 while passing through the workpiece 20.

After the bending operation is completed, if the cylinder means 710 of the power transmission means 700 is reversely driven, the rack member 720 moves backward while the piston 711 of the cylinder means 710 moves backward. The first and second

bending forming means

500a and 500b are then returned to their original positions. That is, the first and second bending molding means 500a and 500b are restored to their original state by driving in the opposite direction of the molding process.

Therefore, it is possible to simultaneously mold a plurality of workpieces 20 by one bending operation, as well as to replace workpieces 20 having different heights at the same time by replacing the upper and

lower jigs

112 and 122, and various industries. Pipes and metal wires used in the field can be molded more easily and quickly.

As described above, the above-described embodiments are described with reference to the most preferred examples of the present invention, but are not limited to the above embodiments, and it will be apparent to those skilled in the art that various modifications can be made without departing from the technical spirit of the present invention. .

Claims

It consists of an upper mold 110 and a lower mold 120 superimposed on the upper portion of the base frame 10, the bent portion to a part of the workpiece 20 by fixing the workpiece 20 to the edge portion A plurality of bending dies 100 having a bending surface 101 for molding 21;

A support guide plate 200 formed at a lower portion of the bending die 100 and spaced apart by a predetermined distance along the bending surface 101 of the bending die 100;

A support body (300) provided at one side of the support guide plate (200) and provided with a support (310) for supporting a lower surface of the bent mold (100);

A guide rod 410 protruding upward from one side of the support guide plate 200 and a transfer rod 420 spaced apart from one side of the guide rod 410 penetrate the bending mold 100, and the transfer rod Combined with the end of the 420 to transfer the upper mold 110 vertically upward along the guide rod 410 by the lifting action of the transfer cylinder 430 provided vertically on one side of the transfer rod 420 Elevating means (400);

Bending molding means (500) for forming the bent portion (21) by pressing the workpiece (20) while moving along the guide hole (210) of the support guide plate (200);

A power transmission unit 700 provided on an upper portion of the base frame 10 to move the bending forming means 500 along the guide hole 210;

Banding device, characterized in that it comprises a control unit for controlling the elevating means (400) and power transmission means (700).
The method of claim 1,

The work guide 20 is pressurized between the upper mold 110 and the lower mold 120 between the workpiece 20 at the center of the bending die 100 by bending the workpiece 20 when bending. Banding device, characterized in that the pressing means for preventing the departure from the mold 100 is further provided.
The method of claim 2,

The pressing means 800 protrudes upward from the support guide plate 200, and a fastener 811 is formed at one side thereof, and a pressing support bolt bolted to the pressing hole 820 for pressing the workpiece 20. 810;

Is formed on the other side of the pressing support 810, characterized in that consisting of a pressing cylinder 830 for adhering the pressing support 810, the pressure port 820 in close contact with the workpiece 20. Banding device.
The method of claim 1,

The bending molding means 500 is a bending device, characterized in that provided on one side or both sides of the base frame (10).
The method of claim 1,

The upper mold 110 of the bending mold 100 is composed of an upper plate 111, the upper jig 112 is bolted to the lower surface of the upper plate 111, the lower mold 120 is a lower plate 121 ) And a lower jig 122 bolted to an upper surface of the lower plate 121, and an upper surface of the upper plate 111 is provided with a flange 113 having a bolt hole 113a formed on an outer circumferential surface thereof. The transfer rod 420 is bolted to the flange 113, the bending device, characterized in that the support 310 of the support body 300 is bolted to the lower surface of the lower plate 121 is fixed.
The method of claim 5,

The upper and lower jigs 112 and 122 are formed so that a circumferential portion protrudes outward from the circumference of the upper plate 111 and the lower plate 121, and either one of the upper jig 112 and the lower jig 122 is formed with a step. Banding device, characterized in that the workpiece 20 is seated on the stepped portion.
The method of claim 1,

Is formed on the outside of the bending molding means 500, the bending forming means combined with a plurality of connection support members 610 protruding outward from the connecting plate 320 coupled to the upper surface of the support body 300 Banding device, characterized in that the guide member 600 for supporting the upper end of the 500 is further provided.
The method of claim 1,

The elevating means 400 includes a first and a second fixing plate 411 to which the ends of the transfer rods 420 are integrally coupled;

Horizontal bars 413 coupled to lower surfaces of the first fixing plate 411 and the second fixing plate 412 so that the first and second fixing plates 411 and 412 are connected to each other;

Coupled to the lower side of the horizontal bar (413), the bending device, characterized in that consisting of a lifting plate (414) in close contact with the piston end of the transfer cylinder (430).
The method of claim 1,

The bending molding means 500 protrudes upward from the base frame 10 to move along the guide hole 210 of the support guide plate 200, and a plurality of horizontal plates 511 are integrally formed in the longitudinal direction. A molding cylinder having a member 510 and a pressure roller 522 seated on an upper portion of the horizontal plate 511 and press-contacting the workpiece 20 fixed to the bent mold 100 at an end thereof. 521 is composed of a plurality of molding cylinder 520 formed in the longitudinal direction of the movable member 510,

One side of the inner surface of the movable member 510 is provided with a first guide roller 513 in close contact with the inner surface of the guide hole 210, one side of the outer surface is in close contact with the inner surface of the guide member 600 Banding device, characterized in that the second guide roller 514 is provided.
The method of claim 9,

A first roller part 540 is formed at a lower end of the movable member 510 to be in close contact with the upper surface of the base frame 10, and a horizontal plate formed at a lowermost part of the horizontal plate 511 of the movable member 510. The lower surface of the bending device, characterized in that the second roller portion 550 is provided in close contact with the upper surface of the support guide plate 200.
The method of claim 9,

The molding cylinder unit 520 is a bending device, characterized in that one or more provided on the moving member (510).
The method of claim 1,

The power transmission means 700 is installed in the center of the base frame 10, the cylinder means for driving the piston 711 forward and backward (710);

A rack member 720 provided at an end of the piston 711 and provided with a rack 722 integrally with a pair of auxiliary rails 721;

A pinion 730 rotatably arranged on a drive shaft 731 installed between the base frame 10 and the support guide plate 200, wherein the rack 722 is engaged;

A drive sprocket 740 which is integrally rotated with the pinion 730, respectively;

A plurality of driven sprockets 750 interlocked with the driving sprockets 740 and provided in one direction of the bent mold 100;

Banding device, characterized in that consisting of a chain 760 to the drive sprocket 740 and the driven sprocket 750 is interlocked, the bending forming means 500 is fixed to one side.
The method of claim 12,

Pinion (730), drive sprocket (740), driven sprocket (750) and the chain (760) of the power transmission means 700 is a bending device, characterized in that formed on one side or both sides of the rack member (720).
The method of claim 12,

Upper and lower rollers 723 and 724 are provided at both upper and lower sides of the rack member 720, and the upper and lower rollers 723 and 724 are seated, respectively, so that the rack member 720 can be moved forward and backward horizontally. A lower rail 725 is provided on the base frame 10 so that the first rail fixing plate 727 and the first rail fixing plate 727 through which the piston 711 penetrates in front of the cylinder means 710. An upper roller 726 having both ends fixed between the second rail fixing plates 728 formed to be spaced apart by a predetermined distance from the front is provided, and the auxiliary roller 729 that is in close contact with the upper surface of the auxiliary rail 721 and rotates. The bending device, characterized in that provided in the auxiliary roller support (770) fixed to the base frame (10).