KR20170081328A

KR20170081328A - Roll bending machine

Info

Publication number: KR20170081328A
Application number: KR1020160000235A
Authority: KR
Inventors: 김수용
Original assignee: 김수용
Priority date: 2016-01-04
Filing date: 2016-01-04
Publication date: 2017-07-12
Also published as: KR101796644B1

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a roll bending apparatus, and more particularly to a roll bending apparatus which is capable of forming curve pieces of various curvatures through simple replacement of pressure rollers having various diameters, And a roll bending apparatus capable of automatically checking whether a defect is caused by measuring a curvature of a curve formed of a curve.

Description

[0001] The present invention relates to a roll bending machine,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a roll bending apparatus, and more particularly to a roll bending apparatus which is capable of forming curve pieces of various curvatures through simple replacement of pressure rollers having various diameters, , And a roll bending apparatus capable of automatically and real-time checking whether a defect has occurred through curvature measurement of a curve-formed curve piece.

As is known, the roll bending apparatus refers to a device for producing a curved piece having a set curvature by bending a planar steel plate into a set curvature through a roll forming process.

The roll bending apparatus includes a support base and a pressure roller which are arranged on the support base so as to intersect with each other in an up-and-down direction.

However, in the conventional roll bending apparatus, the curvature of the bent steel plate is changed by changing the phase of the pressing roller, but there is a limit according to the setting of the curvature of the steel plate only by changing the phase of the pressing roller.

That is, in order to manufacture a curved piece having a wider curvature, it is preferable that the operator alternately replace the pressure roller having a diameter corresponding to the thickness or curvature of the steel plate.

However, in the conventional roll bending apparatus, since the supporting table on which the elevating rails are formed is firmly fixed by welding or the like, it is practically difficult to replace the pressing roller from time to time.

In order to solve such a problem, Korean Patent Registration No. 10-1446755 discloses a portable terminal comprising a main body fixed to a floor or a support, a bending part provided on the main body, and a power transmission part for operating the bending part, And a fixing plate having hinge shafts formed on both sides of the other side portion of the lower plate having the mounting plate at one side thereof, And a guide plate coupled to a hinge shaft at an upper portion thereof. The installation plate, the fixing plate, and the guide plate are stacked and fixed to each other by a plurality of steel plates stacked on each other. And a first and a second height adjusting holes formed with balls are respectively formed in the roll bending device.

With this configuration, since the pressure roller and the elevation guide can be installed and replaced by disassembling and assembling the fixing plate, the guide plate, and the mounting plate, it is possible to bend the steel plate with a set curvature by mounting a pressure roller having a proper diameter Do.

However, in order to replace the pressurizing roller, complicated components including the guide plate and the mounting plate must be disassembled and reassembled, so that much time and labor are consumed.

In the roll forming process of the iron plate, a strong impact is instantaneously provided to the elevation guide in which the pressing roller is fixed to the supporting table by the elevating structure by the iron plate which is inserted between the supporting roller and the pressing roller.

However, in the related art, there is no buffer structure capable of buffering impact provided to the elevation guide through the pressure roller, so frequent breakage of the elevation guide is caused. In addition, It is difficult to perform maintenance by exchanging the elevation guide. In this field, the entire support including the elevation guide is replaced and repaired, which causes an excessive cost.

Since the conventional roll bending apparatus does not have a dedicated means for measuring the curvature of the roll formed curve pieces, it is possible to manufacture a plurality of curve pieces through a roll forming process, and then, through a measurement jig having a set curvature The curvature of each curved piece is measured and checked for defects, which is cumbersome and consumes manpower and time.

It is an object of the present invention, which is devised to overcome the above-described problems, to produce a curved piece of a set curvature by inserting a planar steel plate into a curved piece of various curvatures through simple replacement of a pressure roller having various diameters And to provide a roll banding device capable of real-time inspection of defects through curvature measurement of curve-formed curve pieces.

The above object is achieved by the following constitutions provided in the present invention.

In the roll banding apparatus according to the present invention,

A support base on both sides of which a support is formed; A pair of support rollers which are disposed parallel to each other between the left and right support rods, with both ends of the support rods being fixed to the support rods of the support base; A pressing roller disposed on the upper portion of the support rollers so as to be vertically crossed and pressing the upper surface of the iron plate to be bent while being supported by the support rollers; And a driving unit for applying a rotational force to the support rollers. The roll bending apparatus for producing a curved piece of a set curvature by longitudinally transferring an iron plate between upper and lower support rollers and a pressure roller,

The elevating and lowering rails of each of the auxiliary supporting rods are provided with an elevating and lowering structure, and the adjusting bolt shafts are disposed in an upright position between the elevating and lowering supporting rods and the auxiliary supporting rods So that the phase of the elevation guide is adjusted by normal and reverse rotation of the adjustment bolt axis,

The pressing roller has a bearing bush installed at both ends thereof. A roller press-in hole through which the pressing roller having bearing bushes at both ends of the pressing roller is fixed to the right and left through the roller press- And a pressure roller provided at both ends with a bearing bush can be substituted.

Preferably, one or more resilient bearings for resiliently abutting the bearing bush provided at both ends of the pressure roller are formed on the inner wall of the roller press-fit hole, so that the bearing bush inserted in the roller press-fit hole is prevented from being left- .

More preferably, the elevating rail formed on the auxiliary support has an open top, and a support piece having a control tube portion vertically passed through the open auxiliary support is assembled to the auxiliary support through the fixing bolt, So as to exchange the lift guide through the upper portion of the opened lift rail.

A curve measuring section including a curvature measuring piece for measuring the curvature of the curved steel plate passing through the supporting roller and the pressing roller while passing through the supporting roller and the pressing roller is formed on one side of the base to measure the curvature of the curve-

As described above, according to the present invention, it is possible to manufacture a curve piece having various curvatures through replacement of a pressure roller according to the standard and the curvature of a steel plate required by providing a simple replacement structure of the pressure roller.

Further, according to the present invention, since a shock absorbing structure is formed between the elevating guide supporting the pressure roller and the adjusting bolt shaft to mitigate the impact of the elevating guide due to the entry of the iron plate, breakage of the elevating guide due to the impact is suppressed, It is possible to repair quickly by replacing the broken lift guide through the opening of the lift rail formed in the auxiliary guide.

In addition, in the present invention, a curvature measuring part including at least one curvature measuring part having a curvature equal to a curvature of a curved curved part formed at a setting curvature while passing between a supporting roller and a pressing roller is added to a discharge section through which the curviline is discharged.

Therefore, the curvature of the roll-formed curve piece is measured in real time by the curvature measuring piece, so that the operator can quickly recognize the occurrence of a defect of each curve piece. Further, It is possible to prevent further occurrence of defects by taking follow-up action in real time and eliminating the occurrence of defects.

Fig. 1 shows the overall configuration of a roll bending apparatus proposed in the preferred embodiment of the present invention,
FIG. 2 is a view showing the assembly state of the auxiliary guide, the elevation guide, and the pressure roller in the roll bending apparatus proposed in the preferred embodiment of the present invention,
3 is a view showing a state in which a pressure roller is detached from an elevation guide in a roll bending apparatus proposed in a preferred embodiment of the present invention,
FIG. 4 shows a position alignment structure formed in the support rollers in the roll bending apparatus proposed in the preferred embodiment of the present invention,
FIG. 5 shows a curved forming process of a steel plate through a supporting roller and a pressing roller and a curvature measuring state of a curved piece manufactured by curve forming in a roll bending apparatus proposed in a preferred embodiment of the invention,
FIG. 6 shows a detailed configuration and operation state of a curvature measuring unit in a roll bending apparatus proposed in the preferred embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a roll bending apparatus according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows the overall configuration of a roll bending apparatus proposed as a preferred embodiment of the present invention. FIG. 2 shows a roll bending apparatus proposed in the preferred embodiment of the present invention. FIG. 3 shows a state in which the pressure roller is attached to and detached from the elevation guide in the roll bending apparatus proposed in the preferred embodiment of the present invention, and FIG. 4 shows a state in which the pressure roller is proposed as a preferred embodiment in the present invention FIG. 5 is a perspective view of a roll bending apparatus in a roll bending apparatus according to a preferred embodiment of the present invention. In the roll bending apparatus shown in FIG. 5, FIG. 6 shows a curvature measurement state of the curve piece manufactured by the present invention, and FIG. In the roll bending apparatus, to show the detailed configuration and operation status of the curvature measurement.

The roll bending apparatus 1 proposed in the preferred embodiment of the present invention is an apparatus for producing a curved piece C of a curvature set by roll-forming a planar steel plate P.

As shown in FIGS. 1 and 2, the roll bending apparatus 1 includes: a support base 10 having support rods 11 formed on both right and left sides; A pair of support rollers 20 which are disposed parallel to each other between the left and right support rods 11 by fixing both ends of the support rods 11 to the support base 10 in a rotating structure; A pressure roller 30 disposed on the upper portion of the support rollers 20 and vertically intersecting and supported by the support rollers 20 to press the upper surface of the iron plate P moving in the longitudinal direction; And a driving unit 40 for rotating the supporting roller 20 in one direction.

A plurality of sprockets (not shown) are formed to correspond to ends of the support rollers 20 and a chain (not shown) is attached to the sprockets ) And a single drive motor, the feed of the iron plate P requiring curve forming while rotating in one direction is intended.

5, the planar steel plate P that has entered from one side of the support base 10 passes through the upper and lower support rollers 20 and the pressure support roller 30, (C).

In this embodiment, a phase adjustment structure for adjusting the phase adjustment of the pressure roller 30 and a replacement mounting structure for a unique pressure roller 30 are provided, so that the set curvature required for the flat iron pieces P having various thicknesses So that the curved piece C can be formed.

2 and 3, an auxiliary support 12 having a lift rail 12a is disposed on each support 11 of the support base 10, and the auxiliary support 12 12 are fastened to the outside of the support base 11 through fastening bolts.

An elevation guide 13 is installed on the elevating rail 12a of each of the auxiliary supports 12 so that the adjusting bolt shaft 14 is erected upright between the elevation guide 13 and the auxiliary support 12, So that the phase of the elevation guide 13 is adjusted by the forward and backward rotation of the adjustment bolt shaft 14.

At this time, a torsion spring 15 is disposed between the elevation guide 13 and the adjustment bolt shaft 14 so that the elevation guide 13 is downwardly biased by the torsion spring 15.

With this configuration, the impact of the elevation guide 13 instantaneously rising by the iron plate P entering between the support roller 20 and the pressure roller 30 is buffered, and as a result, the interference with the iron plate P Deformation and breakage of the elevation guide 13 and the adjustment bolt shaft 14 due to the momentary elevation of the elevation guide 13 are suppressed.

2 and 3, the elevating rail 12a formed on the auxiliary support 12 has an open top, and the opened auxiliary support 12 is provided with an adjusting pipe (not shown) The operator lifts the upper part of the lift rail 12a by separating the support piece 12b from the auxiliary support 12 and then pushing the upper part of the lift rail 12a through the fixing bolt 12b- The elevating guide 13 is exchanged through the upper part of the opened elevating rail 12a and then the elevating rail 12a is closed by reassembling the supporting piece 12b into the auxiliary supporting frame 12. [

Therefore, when the elevation guide 13 is damaged or the like is damaged, the operator can easily install and replace the elevation guide 13 through disassembly and reassembly of the supporting piece 12b, so that the maintenance can be performed simply and quickly.

In this embodiment, as shown in Figs. 1 to 3, a roller press-in hole 13a through which the pressurizing roller 30 having the bearing bushes 31 at both ends thereof are inserted and fixed to the respective elevation guides 13, And the pressure roller 30 having a diameter corresponding to the thickness or the curvature of the steel plate requiring bending is inserted between the elevation guides 13 so as to be installed.

Therefore, the operator can easily adjust the position of the iron plate P (P) passing between the support roller 20 and the pressurizing roller 30 through the vertical adjustment of the pressure roller 30 and the replacement of the pressure roller 30 having the required diameter Is changed to form a curve piece C having a set curvature.

4, the support roller 20 is provided with an alignment structure for aligning the left and right positions of the iron plate P so that the iron plate P is supported by the support roller 20 in a left- And the pressing roller 30, thereby preventing the iron plate P from being horizontally released.

To this end, in this embodiment, an annular support guide rim 21 is fixed to one side of the support roller 20, and an annular flange guide rim 22, which is one side of the support roller 20, As shown in Fig.

The adjustment nut 23 is fastened to the other side of the support roller 20 through which the tread guide rim 22 is inserted so that the adjustment nut 23 and the torsion spring guide A support spring 24 is disposed between the rims 22 so that the operator can adjust the forming position of the flange guide rib 22 by moving the adjusting nut 23 in the left and right direction in accordance with the width of the iron plate P requiring curving. .

The iron plate P inserted between the support roller 20 and the pressurizing roller 30 is pushed to one side by the flange guide rim 22 and is supported by the support guide rim 21, The operator changes the forming position of the flange guide rim 22 by shifting the adjusting nut 23 leftward and rightward to align the left and right iron plates P having various widths in common.

The iron plate P passing between the support rollers 20 and the pressure roller 30 in the longitudinal direction is moved in the right and left direction by the support guide rim 21 and the flange guide rim 22 And is formed into a curved piece C of a regular curvature while moving in the longitudinal direction in an aligned state.

In the present invention, as shown in FIG. 1, FIG. 5 and FIG. 6, in the discharge section of the support base 10 from which the curved piece C is discharged, while passing between the support roller 20 and the pressure roller 30 A curvature measuring portion 50 including at least one curvature measuring piece 54 having a curvature equal to the curvature of the curvature C formed by curve forming with the setting curvature is added to the curve piece C formed through the roll forming process, Or the like.

As shown in FIG. 6, the curvature measuring unit 50 includes a forward / backward rod 51; A curvature measuring piece (54) disposed in the support base (10) in a retracted configuration via the moving rod (51); An elastic member 53 for resiliently biasing the curvature measuring piece 54 to the inside formed with the support base; A sensing sensor 55 for sensing movement of the curvature measuring piece 54; And a notification unit 56 for notifying the presence or absence of a curvature abnormality of the curve piece C formed by the detection sensor 55. The alarm unit may be a horn or a warning light.

At this time, the curvature measuring piece 54 constituting the curvature measuring part 50 is provided with a carrier 52 (hereinafter, referred to as a " carrier ") 52 disposed in a discharge section of the support base 10 through which the curve piece C is discharged, The curved piece C is brought into close contact with the inner wall when the curved piece C having the same curvature as shown in FIG. 6A enters. When the curved piece C having a different curvature enters as shown in FIG. 6B, And the curvature measuring piece 54 mounted on the carrier 52 are moved outward.

6B, even if the curved piece C in which the defective curvature is generated enters the curvature measuring piece 54 as shown in Fig. 6B, the curvature of the curvature measuring piece 54 It is possible to prevent a phenomenon that the piece 54 or the curve piece C in which a defect is generated is excessively interfered with and is damaged.

When the curve piece C different from the set curvature other than the curve piece C of the set curvature enters the curvature measuring piece 54 and the curvature measuring piece 54 carrying the carrier 52 and the carrier 52 move outward, The detection sensor 55 senses this and informs the operator of the occurrence of the defect on the spot through the notification unit 56. [

Therefore, the curvature measuring unit 50 measures the curvature of the curve piece C that is curve-shaped with the set curvature while passing between the support roller 20 and the pressurizing roller 30, and measures the curvature of the measured curve piece C If this happens, notify the site to take the follow-up action by the operator.

In this embodiment, as shown in Fig. 6, the carrier 52 is provided with an isosceles rotary shaft 52a in which connecting arms 52b are arranged at an equal angle, and each connecting arm 52b of the isosceles rotary shaft 52a The curvature measuring pieces 54 having different curvatures are disposed.

Therefore, the operator selectively rotates the isosceles rotary shaft 52a to selectively place the curvature measuring piece 54 having the same curvature as the curvilinear section C formed through the roll forming process, behind the support base 10, The curvature of the curve piece C produced by roll forming is inspected.

Thus, the operator can easily and reliably remove the curvature measuring piece 54 from the carrier 52 in accordance with the curvature of the curved piece C formed at various curvatures while passing through the roll forming section. It is possible to measure the curvature of the curve piece C by disposing the curvature measuring piece 54 having the same curvature as the curvature through the equivalent rotation in the discharge section of the curve piece C. [

1. Roll banding device
10. Support Base 11. Support Base
12. Auxiliary support 12a. Lift rail
12b. Support 13. elevator guide
13a. Roller press-in ball 13b. Elastic bonding
14. Adjustment bolt shaft 15. Tangential spring
20. Support Roller 21. Support Guide Rim
22. Tire guiding rim 23. Adjusting nut
24. Support springs
30. Pressure roller 31. Bearing Bushing
40. Drive
50. Curvature measuring part 51. Progressive rod
52. Carrier 52a. Angle of rotation
52b. Connecting arm 53. an elastic member
54. Curvature measurement 55. Detection sensor
56. Notification unit

Claims

A support base on both sides of which a support is formed; A pair of support rollers which are disposed parallel to each other between the left and right support rods, with both ends of the support rods being fixed to the support rods of the support base; A pressing roller disposed on the upper portion of the support rollers so as to be vertically crossed and pressing the upper surface of the iron plate to be bent while being supported by the support rollers; And a driving unit for applying a rotational force to the support rollers. The roll bending apparatus for producing a curved piece of a set curvature by longitudinally transferring an iron plate between upper and lower support rollers and a pressure roller,
The elevating and lowering rails of each of the auxiliary supporting rods are provided with an elevating and lowering structure, and the adjusting bolt shafts are disposed in an upright position between the elevating and lowering supporting rods and the auxiliary supporting rods So that the phase of the elevation guide is adjusted by normal and rotation of the adjustment bolt axis,
The pressurizing roller has a bearing bush installed at both ends thereof. A roller press-in hole for passing the pressurizing roller through which the pressurizing roller having bearing bushes at both ends of the pressurizing roller is fixed is formed so as to penetrate right and left. And the installed pressure roller is configured to be inserted into the roller press-fitting hole and to be installed in place.

The bearing bush according to claim 1, wherein at least one resilient bearing ring is formed on the inner wall of the roller press-fit hole to elastically lock the bearing bush provided at both ends of the pressure roller so that the bearing bush inserted in the roller press- And the roll bending device.

[2] The apparatus as claimed in claim 1, wherein the lift rail formed on the auxiliary support is formed in an open top shape, and a support piece having a control tube portion vertically penetrating through the open auxiliary support is assembled through a fixing bolt, And the elevating guide is configured to be replaced through an upper portion of the elevating rail separated from the supporting frame.

The apparatus according to claim 1, wherein a curve measuring portion including a curvature measuring piece for measuring a curvature of the steel plate, which passes through the supporting roller and the pressing roller while passing through the support roller and the pressing roller, is formed on one side of the base to measure the curvature of the curve- And a roll bending device.