JP2001113314A - Panel continuous straightening apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently conduct straightening by smoothly conducting a feed to straighten a bent panel. SOLUTION: In the panel continuous straightening apparatus to straighten a bent panel P in which a reinforcing rib i is mounted along the longitudinal direction and is bent in a plane, the apparatus is provided with a bending detection means to detect a reference face S following bending of the panel P, a roller traverse device, which moves a strain removal roller device 6 and reverse strain forming roller devices 7R, 7L in the panel width direction and adjusts a pressing position of upper/lower straightening rollers 6a-6d, a roller turning device, which adjusts a pressing angle of the rollers by turning these upper/lower straightening rollers 6a-6d each around a vertical axis, and a straightening controller to drive control the roller traverse device and the roller turning device based on a signal of the bending detection means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a panel for a box girder panel or a structure for manufacturing a bridge or a ship, and more particularly to a method for removing welding distortion and forming a reverse distortion of a curved panel in which a plate is curved in a plane. The present invention relates to a continuous panel straightening device suitable for a panel.

[0002]

2. Description of the Related Art For example, in a manufacturing process of manufacturing a box girder for a bridge, welding distortion generated in a panel due to welding of a reinforcing rib and welding distortion generated when assembling into a box shape occur. For this reason, the panel after reinforcement rib welding is sandwiched between straightening rollers to remove welding distortion continuously,
The welding distortion of the box girder is removed by performing the reverse distortion processing while sandwiching the reverse distortion correcting roller. These box girder forming panels include a straight box girder panel and a curved box girder panel, and there is a problem in correcting the curved box girder panel.

That is, there are two conventional straightening methods of a curved box girder panel (hereinafter referred to as a curved panel). There are a straight feeding straightening method and a curved straightening method. In the straight feeding method, as shown in FIG. In order to avoid the bending of the reinforcing rib caused by the arc curve and the contact with the correction roller 62, the correction is temporarily interrupted every time a predetermined distance is fed, and the correction roller 62 is traversed. After the position adjustment, the pressure correction is restarted. This is performed by repeating a plurality of times according to the bending. In the figure, reference numeral 63 denotes a locus of the correction roller 62.

In the curve feeding method, as shown in FIG. 18, the sheet is fed in an arc direction along the curve of the curve panel 61. A plurality of guides for guiding the curve panel 61 in a curve direction to a roller conveyor 65 for linear feeding. Are disposed, and the correction roller 62 is fixed at the correction position.

[0005]

However, in the above-mentioned conventional linear feed straightening method, in order to correct the displacement between the reinforcing rib and the straightening roller when feeding linearly, after the pressing straightening is once released, the vertical straightening roller is released. Has to be performed, which causes a problem that the working time is long and the working efficiency is poor.

In the curve feed straightening method, a curved panel 6 is used.
In order to feed 1 in the arc direction, a wide equipment width is required. Further, an auxiliary roller 65a whose angle can be adjusted before and after the straightening roller is disposed to handle curved panels having different curved radii. However, since the front and rear of the auxiliary roller 65a are parallel rollers 65b, the feed direction of the parallel roller and the actual There is a deviation from the direction of the curve to be moved. For this reason, the posture of the curved panel 61 during feeding is not accurately determined, and if it shifts, it is likely to need to change the pressing position of the correction roller 62. Further, an excessive load is applied to the side roller 66 for guiding the side edge of the curved panel 61, which may cause damage to the side roller 66 and damage to the curved panel.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems and to provide a continuous panel straightening apparatus capable of smoothly feeding even a curved panel and efficiently performing a straightening operation.

[0008]

According to the first aspect of the present invention, a panel to which a reinforcing member is attached along a length direction is conveyed linearly along the length direction. A panel continuous straightening device comprising a conveying unit and a straightening roller device disposed at a straightening position in the middle of the conveying unit and pressing and correcting a central portion of the panel by at least a pair of upper and lower correcting rollers, in a conveying direction of the panel. A bend detecting means for detecting a reference plane which is set along and follows a bend in the plane of the panel, and a roller capable of adjusting the pressing position of the upper and lower correction rollers by moving the distortion removing roller device in the panel width direction. A traversing device, and a roller rotating device capable of adjusting the pressing angle of the upper and lower correction rollers by rotating the upper and lower correction rollers around a vertical axis, respectively, It is provided with a straightening control device for driving and controlling the roller traverse device and the roller rotating device based on the signal.

According to the above construction, the panel is fed in a straight line direction, the bend of the panel is detected by the bend detecting means, and based on the detected value, the correction control device controls the roller traversing device to control the width of the correction roller in the width direction. In addition to adjusting the position, the roller rotating device is controlled to adjust the pressing angle of the straightening roller in the tangential direction that follows the bending of the panel, so that welding distortion of the curved panel can be continuously removed, and the panel can be removed. Smooth feeding is possible, and straightening work can be performed efficiently.

According to a second aspect of the present invention, there is provided a transporting means for transporting a panel on which a reinforcing material is attached along the lengthwise direction linearly along the lengthwise direction, and a correction position in the middle of the transporting means. A distortion removing roller device that is disposed and corrects the panel by pressing the panel by at least a pair of upper and lower correction rollers, and a reverse distortion forming roller device that presses the panel by at least a pair of reverse distortion forming rollers to form reverse distortion. In the panel continuous straightening device, provided a bend detecting means for detecting a reference surface that is set along the transport direction of the panel and follows a bend in the plane of the panel,
A roller traversing device capable of adjusting the pressing position by moving the straightening roller and the reverse distortion forming roller in the panel width direction, and rotating the straightening roller and the reverse distortion forming roller around a vertical axis, respectively. A roller rotating device capable of adjusting the pressing angle; and a correction control device for controlling the drive of the roller traversing device and the roller rotating device based on a signal from the bending detecting means.

According to the above construction, the panel is fed in a straight line direction, the bend of the panel is detected by the bend detecting means, and based on the detected value, the correction control device controls the roller traversing device so that the correction roller and the reverse distortion are formed. The position of the roller in the width direction is adjusted, and the roller rotating device is controlled to adjust the pressing angle θ of the correction roller and the reverse distortion forming roller in the tangential direction that follows the bending of the panel. In addition to the continuous removal, a reverse distortion that removes welding distortion generated during box girder manufacturing can be formed, so that panels can be smoothly fed in and straightening work can be performed efficiently.

Further, according to the third aspect of the present invention, in each of the above-described structures, two upper and lower correction rollers disposed in the correction roller device are arranged in the width direction, and these correction rollers are moved toward and away from each other to correct the pressure. A pressing position adjusting device capable of adjusting the position is provided. According to the above configuration,
Correction rollers can be arranged at appropriate positions on both sides corresponding to the width of the reinforcing material attached to the pressing correction position for removing distortion, and satisfactory distortion removal can be performed regardless of the width of the reinforcing material. .

Further, in the invention according to claim 4, the reference surface is a side surface of the reinforcing rib or a side edge of the panel. According to the above configuration, it is possible to accurately detect the bending of the panel over the length direction of the panel, and to accurately apply the roller to the pressing correction position and / or the reverse distortion forming position.

[0014]

FIG. 1 shows an embodiment according to the present invention.
This will be described with reference to FIG. As shown in FIGS. 2 and 3, for example, the panel handled here is a panel P which is in the process of being manufactured at the time of manufacturing a box girder for a bridge. ) I or U of U-shaped section
A rib u is attached by welding along the length direction. In the continuous straightening device for the panel P, the plate PL can of course straighten a rectangular straight panel. However, the plate PL is formed in an arc shape (sector) having a radius r of several tens of meters or more in a plane. It is particularly suitable for handling curved panel P.

As shown in FIGS. 1 and 4, this continuous panel straightening apparatus comprises a straightening machine main body 1 and a panel conveying means 2 for carrying a panel P into and out of the straightening machine main body 1. The means 2 includes a roller conveyor device 3 for transporting the panel P linearly in the longitudinal direction before and after the straightening machine main body 1 and a side roller device 4 for positioning the panel P.

As shown in FIGS. 5 and 6, the straightening machine body 1 has a portal frame 5 arranged in the width direction and a strain relief roller device 6 arranged at the center of the portal frame 5.
A left and right reverse distortion forming roller devices 7R and 7L disposed on both left and right sides of the distortion removing roller device 6, an introducing roller device 8 disposed in the width direction before and after the portal frame 5, and a panel P A bending detecting means 9 (FIG. 13) for detecting the bending of the panel by measuring the displacement of the side surface of the central rib which is the reference surface S is provided.

In this straightening machine body 1, as shown in FIGS. 2 and 3 (b) → (c), the straightening rollers 6a to 6d of the straightening roller device 6 remove the distortion of the panel P. At the same time, reverse distortion is formed by the reverse distortion forming rollers 7a and 7b of the left and right reverse distortion forming roller devices 7R and 7L as shown in FIGS. . Further, the roller conveyor device 3
Fig. 1 shows the displacement of the curved panel P conveyed in a linear direction by
3 is detected by a non-contact type detector 9 shown in FIG.
d and the pressing positions of the reverse distortion forming rollers 7a and 7b of the reverse distortion forming roller devices 7R and 7L are respectively moved in the width direction and rotated about the vertical axis so as to follow the tangential direction of the curve. Have been.

Hereinafter, the details will be described. First, in the roller conveyor device 3 of the panel conveying means 2, a plurality of horizontal conveying rollers 11 arranged in parallel to each other are arranged at predetermined intervals in the conveying direction, and a conveyor drive comprising a sprocket, a chain, and a conveyor driving device (electric motor). The horizontal transport roller 11 is rotationally driven by the mechanism 12 and is configured to be transported from the front to the rear or from the rear to the front. In the side roller device 4, a vertical roller 13 is provided upright between predetermined horizontal transport rollers 11, and these vertical rollers 13
It is configured to be movable in the width direction by a roller moving mechanism 14 having a feed screw shaft, and is used for positioning and centering of the panel P at the time of carrying in the panel. I have.

The portal frame 5 of the straightening machine main body 1 has upper and lower horizontal beams 5b and 5b sandwiching the conveying surface of the roller conveyor 3 on columns 5a provided on both sides of the roller conveyor device 3.
c are connected. On the lower surface of the upper horizontal beam 5a, a pair of front and rear upper horizontal linear rails 15u are laid in the width direction,
A roller 7 for removing the distortion is mounted on the upper traversing linear rail 15u.
The upper distortion removing unit 6U and the upper reverse distortion forming units 7U, 7U on the left and right reverse distortion forming roller devices 7R, 7L are movably disposed respectively. A pair of front and rear lower traversing linear rails 15d are laid in the width direction on the upper surface of the lower horizontal spar 5c, and the lower traversing linear rail 16u has a lower distortion removing unit 6D and a left and right reverse distortion forming roller. Device 7R, 7L lower reverse distortion forming unit 7D,
7D are provided movably.

As shown in FIGS. 7 to 9, the lower distortion removing unit 6D of the distortion removing roller device 6 allows the lower traversing base 21 to move freely via the linear bearing on the lower traversing linear rail 15d of the lower horizontal spar 5c. The lower turning frame 22 is arranged on the lower traversing base 21 via a bearing so as to be rotatable around a vertical axis. The lower rotating frame 22 includes a pair of left and right driven lower correction rollers 6c, 6c.
A split-type lower roller supporting device 23 that supports d so as to be adjustable in distance is provided. The lower traversing platform 21
And the lower horizontal girder 5c, the lower distortion removing unit 6D is attached to the panel P
A lower roller traversing device 24 capable of adjusting the pressing position of the lower correction rollers 6c and 6d by moving in the width direction is provided.

The lower roller traversing device 24 includes a traversing driving device (electric motor) 24a disposed on the lower traversing base 21 via a bracket, and a traversing driving device 24a rotatably driven via a reduction gear by the traversing driving device 24a. A traversing rack 24c laid along the width direction on the front surface of the lower cross beam 5c and meshing with the traversing pinion 24b, and the traversing pinion 24b is rotated by the traversing drive 24a to traverse the The traversing platform 21 can be moved in the width direction via 24c, and the positions of the lower straightening rollers 6c and 6d can be adjusted in the width direction.

The lower traversing base 21 and the lower rotating frame 22
Is provided with a lower roller rotating device 26 which can adjust the pressing angle θ by rotating the lower correction rollers 6c and 6d around the vertical axis. This lower roller rotation device 26
Large turning gear 26a attached to lower turning frame 22
A rotation drive device (electric motor) 26b provided on the lower traverse base 21 via a bracket, and a rotation pinion 26c that is driven to rotate by the rotation drive device 26b and meshes with the large rotation gear 26a. Have been. Therefore, the rotation pinion 26c is rotated by the rotation drive device 26b.
To rotate the lower turning frame 22 around the vertical axis via the turning large gear 26a, thereby lowering the lower correction rollers 6c and 6c.
d can be adjusted.

Further, the split-type lower roller supporting device 23 provided on the lower rotating frame 22 is provided with lower right and left correcting rollers 6 according to the width of reinforcing members such as I-ribs and U-ribs.
The lower roller width adjuster 27 is provided with a lower roller width adjuster 27 capable of adjusting the distance between c and 6d. The frames 27a, 27a are arranged movably in the width direction via guide members. The lower rotating frame 22 has a screw shaft 2 on which a left-right reverse screw is formed.
7b is arranged rotatably along the width direction,
A width adjusting drive (electric motor) 27c for rotating the screw shaft 27b forward and reverse through a transmission mechanism including a sprocket and a chain is provided. Further, the left and right adjustment frames 27a have female screw portions 27d that respectively mesh with the left and right screw portions of the screw shaft 27b. The width adjustment drive device 27c rotates the screw shaft 27b forward and reverse via a transmission mechanism, and By moving the adjustment frame 27a closer and further away through the portion 27D, the right and left lower correction rollers 6 are moved.
The distance between c and 6d can be adjusted. The left and right lower correction rollers 6c and 6d are supported by left and right adjustment frames 27a via a horizontal drive shaft 28, and each adjustment frame 27
The rotation is driven via a reduction gear by a correction roller driving device 29 disposed at a.

In the upper strain removing unit 6U of the strain removing roller device 6, an upper traverse base 31 is movably disposed on an upper traversing linear rail 15u via a linear bearing.
The elevating frame 30 is arranged on the upper traverse 31 via an elevating guide part 35a so as to be able to move up and down. The lifting frame 30 is connected to a pressing jack (hydraulic cylinder) 35 provided on the upper traverse base 31 and is configured to be driven up and down. An upper turning frame 32 is rotatably arranged around the vertical axis via bearings on the elevating frame 30.
A pair of left and right idle-type upper straightening rollers 6a,
A split-type upper straightening roller device 33 that supports the space 6b so as to be freely adjustable is provided. In addition, the upper traverse base 3
An upper roller traversing device 34 capable of adjusting the pressing position of the upper straightening rollers 6a and 6b by moving the upper distortion removing unit 6U in the width direction of the panel P is provided in the upper horizontal beam 5 and the upper horizontal beam 5b.

As shown in FIG. 6, the upper roller traversing device 34 is disposed on the upper traversing base 31 via a bracket, and a traversing driving device (electric motor) 34a is connected to the traversing driving device 34a via a speed reducer. And a traverse rack 34c laid along the width direction below the upper cross beam 5b and meshing with the traverse pinion 34b. The traverse pinion 34b is driven by the traverse drive device 34a. 34b to rotate the traversing base 31 in the width direction via the traversing rack 34c.
The positions of a and 5b can be adjusted in the width direction.

The lifting frame 30 and the upper rotating frame 3
As shown in FIG. 8, an upper roller rotating device 36 that can adjust the pressing angle θ by rotating the upper correction rollers 6a and 6b around a vertical axis is interposed in the upper roller 2. The rotation device 36 includes a large rotation gear 36 a attached to the upper rotation frame 32, and a rotation drive device (electric motor) 36 provided on the lifting frame 30 via a bracket.
and a rotation pinion 36c that is driven to rotate by the rotation drive device 36b and meshes with the large rotation gear 36a. Therefore, the rotation pinion 36c is rotated by the rotation drive device 36b, and the large rotation gear 36a is rotated.
, The upper turning frame 32 can be turned around the vertical axis to adjust the pressing angle θ of the upper correction rollers 6 a and 6 b supported by the left and right adjustment frames 37 via the horizontal shaft 38.

Further, a split-type upper correction roller device 33 provided on the upper rotation frame 32 includes an I-rib i and a U-type
Upper roller width adjusting unit 37 capable of adjusting the interval between the left and right upper correcting rollers 6a and 6b according to the width of a reinforcing member such as a rib u.
The upper roller width adjusting section 37 is configured such that left and right adjustment frames 37a, 37a supporting the upper correction rollers 6a, 6b on the upper rotating frame 32 are movable in the width direction via guide members. Supported. In the upper rotating frame 32, a screw shaft 37b having a left-right reverse screw portion is rotatably disposed along the width direction, and the screw shaft 37b is forwarded through a transmission mechanism including a sprocket and a chain. A width adjusting drive (electric motor) 37c for reverse rotation is provided. Further, the left and right adjustment frames 37a have female screw portions 37d that respectively mesh with the left and right screw portions of the screw shaft 37b. The screw shaft 37b is rotated forward and reverse via a transmission mechanism by the width adjustment drive device 37c, and the female screw portion is formed. Adjustment frame 37a via 37d
The distance between the right and left upper straightening rollers 6a and 6b can be adjusted by moving the rollers closer to and away from each other.

As shown in FIG. 11, the lower correction rollers 6c and 6d of the upper and lower correction rollers 6a to 6d are tapered from the inner surface to the outer surface to gradually change from a large diameter to a small diameter in order to remove distortion. The upper straightening rollers 6a, 6b formed in a (frustoconical shape) and supported via the horizontal shaft 38 are reversely changed from a smaller diameter to a gradually larger diameter from the inner surface to the outer surface corresponding to the lower correcting rollers 6c, 6d. It is formed in a tapered shape (frusto-conical shape). As another embodiment shown in FIG. 15, the upper straightening rollers 6a 'and 6b' may be parallel rollers, and a universal bearing 6e swingable within a predetermined range may be interposed in each shaft. Although not shown, the lower correction roller may be a parallel roller and the upper correction roller may be a taper roller, and the upper correction roller may be provided with the universal bearing.

Since the reverse distortion forming roller devices 7R and 7L disposed on the left and right of the distortion removing roller device 6 have the same configuration, only the left reverse distortion forming roller device 7R will be described, and the right reverse distortion forming roller device 7L will be described. The same reference numerals are given and the description is omitted. As shown in FIGS. 7 and 9, the lower reverse distortion unit 7D of the left reverse distortion forming roller device 7R is movably disposed on the lower horizontal girder 5c via a linear bearing on the lower horizontal linear rail 15d. The lower traversing platform 4
1, a lower rotating frame 42 is arranged via a bearing so as to be rotatable around a vertical axis. The lower rotating frame 42 is provided with a driven lower reverse distortion forming roller 7b. The lower traversing base 41 and the lower spar 5c are provided with a lower roller traversing device 4 which can move the lower reverse distortion unit 7D in the panel width direction to adjust the pressing position of the lower reverse distortion forming roller 7b.
4 are provided.

The lower roller traversing device 44 includes a traversing drive device (electric motor) 44a disposed on the lower traversing base 41 via a bracket, and a traversing device that is rotationally driven by the traversing drive device 44a via a speed reducer. It comprises a pinion 44b and a common traversing rack 24c with the lower strain relief unit 6D in which the traversing pinion 44b meshes. , Lower reverse distortion forming roller 7b
Can be adjusted in the width direction.

The lower traversing base 41 and the lower rotating frame 42
Is provided with a lower roller rotating device 46 capable of adjusting the pressing angle θ by rotating the lower reverse distortion forming roller 7b around the vertical axis. This lower roller rotation device 46 is
Large turning gear 46a attached to lower turning frame 42
A rotation drive device (electric motor) 46b provided on the lower traverse base 41 via a bracket, and a rotation pinion 46c which is driven to rotate by the rotation drive device 46b and meshes with the large rotation gear 46a. Have been. Therefore, the rotation pinion 46c is rotated by the rotation driving device 46b.
Is rotated to rotate the lower rotation frame 42 around the vertical axis, so that the pressing angle θ of the lower reverse distortion forming roller 7b can be adjusted. Further, the lower reverse distortion forming roller 7b supported by the roller support portion 47 of the lower rotation frame 42 via the horizontal drive shaft 48 is provided to a reverse distortion forming roller driving device (electric motor) 49 via a speed reducer. It is rotationally driven at a rotational speed.

The upper reverse distortion unit 7U of the left reverse distortion forming roller device 7R is provided with an upper horizontal linear rail 15u of the upper horizontal beam 5b.
The upper traverse base 51 is movably arranged via a linear bearing, and the upper traverse base 51 has
The raising / lowering frame 50 is arranged so as to be able to move up and down freely. The lifting frame 50 is connected to a pressing jack (hydraulic cylinder) 55 provided on the upper traverse base 51 so as to be driven up and down. In addition, an upper turning frame 52 is arranged on the elevating frame 50 via a bearing so as to be rotatable around a vertical axis. An idle-type upper reverse distortion forming roller 7a is disposed on a roller supporting portion 57 of the upper rotating frame 52 via a horizontal shaft 58. The upper reverse gantry 51 and the upper horizontal girder 5b are provided with the upper reverse distortion unit 5U in the panel width direction to move the upper reverse distortion forming roller 7
An upper roller traversing device 54 capable of adjusting the pressing position of “a” is provided.

The upper roller traversing device 54 includes a traversing drive device (electric motor) 54a disposed on the upper traversing base 51 via a bracket, and a traversing device rotatively driven by the traversing drive device 54a via a speed reducer. A pinion 54b and an upper strain relief unit 6U in which the traversing pinion 54b meshes with a common traversing rack 34c. , Upper reverse distortion forming roller 7a
Can be adjusted in the width direction.

The upper traversing base 51 and the upper rotating frame 52
Is provided with an upper roller rotating device 56 that can adjust the pressing angle θ by rotating the upper reverse distortion forming roller 7 a around the vertical axis. The upper roller rotation device 56 includes a large rotation gear 56a mounted on the upper rotation frame 52, a rotation drive device (electric motor) 56b provided on the upper traverse base 51 via a bracket, It is constituted by a rotating pinion 56c which is driven to rotate by the dynamic driving device 56b and meshes with the large rotating gear 56a. Accordingly, the rotation pinion 56c is rotated by the rotation driving device 56 to rotate the upper rotation frame 52 about the vertical axis, and the pressing angle θ of the upper reverse distortion forming roller 7a can be adjusted.

As shown in FIG. 12, the lower distortion forming roller 7b is formed as a drum-shaped roller having a large diameter at the center, and the upper distortion forming roller 7a is formed so as to fit with the lower distortion forming roller 7b. Can be formed on a small-diameter hourglass roller to form reverse distortion. As shown in FIG. 6 (a), the introduction roller device 8 is installed between the front roller conveyor device 3 and the straightening machine main body 1 and between the straightening machine main body 1 and the rear roller conveyor device 3 respectively. Yes, lower horizontal beam 5
A guide roller elevating device (hydraulic cylinder) 17 is provided on a support frame 16 provided at c. With these introduction roller devices 8, when the panel P is carried into the straightening machine main body 1 from the horizontal transport roller 11, the front end of the panel P is bent downward by the lower straightening rollers 6c and 6d due to the bending of the panel P in side view. This is for feeding the panel P with the tip end thereof slightly raised so as not to collide with the top of the distortion forming roller 7b.

Bending means 9 for detecting bending of panel P
As shown in FIG. 13, non-contact type displacement sensors (for example, laser distance sensors) 9a and 9b are arranged on one adjustment frame 37a of the upper distortion removing unit 6U at regular intervals in the transport direction. , The distance to the side surface of the central rib i serving as the reference surface is detected at the front and rear positions, and the panel P
Measure the bend. The non-contact displacement sensor 9
Instead of a and 9b, as shown in FIG. 16, contact rollers 9c and 9d which are brought into contact with the reference surface S by the urging means are arranged back and forth in the transport direction, and the retracting positions of these contact rollers 9c and 9d. Is detected by the built-in displacement sensors 9e and 9f, and the reference surface S
May be a contact type displacement sensor 9 'for detecting the bending. The reference surface S may be a side surface of the ribs i and u other than the center portion, or may be a side edge portion along the transport direction of the plate PL.

The detection signal of the displacement sensor 9a is shown in FIG.
As shown in the figure, each is input to the correction control device 10,
The straightening control device calculates the bending of the panel P from the two signals, and determines the horizontal position and the horizontal position corresponding to the calculated value so that the upper and lower correction rollers 6a to 6d and the left and right upper and lower distortion rollers 7a and 7b have appropriate postures. The traversing drive unit 2 of the vertical distortion removing units 6U and 6D transmits the control signal for the pressing angle θ.
4a, 34a and rotary drive devices 26b, 36b, traverse drive device 44 of left and right reverse distortion forming units 7U, 7D.
a, 54a and the rotary driving devices 46b, 56b.

Next, a description will be given of a straightening operation by the continuous panel straightening apparatus having the above-described structure. The panel P, which is the material to be corrected, is carried into the front roller conveyor device 3 by a crane or the like. At this time, the vertical roller 13 of the side roller device 4 is moved to the set position, and the panel P is positioned at an appropriate position. [FIG. 1 (a)] The roller conveyor device 3 is activated, and the panel P is sent straight to the straightening machine main body 1. At this time, the upper and lower straightening rollers 6
a to 6d are set at initial positions sandwiching the central rib i (u), and the right and left reverse distortion forming rollers 7a and 7b are set at end positions of the panel P where reverse distortion is formed. Then, the front and rear positions of the side surface (reference surface S) of the rib i (u) are detected by the displacement sensor 9a, and the correction control device 10
And the correction control device 10 calculates the bending of the panel P based on the detection signal. Then, the upper and lower correction rollers 6a to 6d are at the appropriate traversing positions with the rib i or u in the center, and the left and right vertical distortion forming rollers 7a, 7
Control signals are output to the traversing driving devices 24a and 34a of the vertical distortion removing units 6U and 6D and the traversing driving devices 44a and 54a of the left and right reverse distortion forming units 7U and 7D so that b is at an appropriate reverse distortion forming position. And the traversing position is controlled, and the upper and lower straightening rollers 6a to
The vertical distortion removing units 6U and 6D are arranged so that the roller pressing angle θ between the left and right vertical distortion forming rollers 7a and 7b is tangential to the bending of the panel P (reference plane S).
Control signals are output to and controlled by the rotary drive devices 26b and 36b of the right and left rotary drive devices 46b and 56b of the reverse distortion forming units 7U and 7D. As a result, as shown in FIGS. 1 (a) to 1 (c), the upper and lower correction rollers 6a to 6d move from the right to the center to the right in the figure, and the pressing angle θ becomes − θmax → 0 ° → + θmax.

According to the above-described embodiment, the panel P is fed in a linear direction by the roller conveyor device 3, the reference surface S of the panel P is detected by the displacement sensor 9a of the bending detecting means 9, and the correction is performed by the correction control device 10. Based on the calculated values, the correction control device 10 controls the upper and lower roller traversing devices 24 and 34 to adjust the widthwise positions of the correction rollers 6a to 6d, and also controls the upper and lower roller rotation devices 26 and
36 is controlled to adjust the pressing angle θ in the tangential direction that follows the bending of the panel P, so that the correction rollers 6a to 6d can follow the displacement of the correction position (the position sandwiching the rib serving as the reference plane at the center). it can. Therefore, the welding distortion of the curved panel P can be continuously removed, and the panel P can be smoothly fed, and the correcting operation can be performed efficiently.

At the same time as the work for removing welding distortion by the correction control device 10, the upper and lower roller traversing devices 44 and 54 are controlled to adjust the widthwise positions of the reverse distortion forming rollers 7a and 7b, and the roller rotating devices 46 and 54 are used. 56 is adjusted to adjust the pressing angle θ of the reverse distortion forming rollers 7a and 7b in the tangential direction following the bending in the plane of the curved panel P, so that the reverse distortion for removing the welding distortion generated at the time of manufacturing the box girder is formed. As a result, the panel can be smoothly fed, and the straightening operation can be performed efficiently.

Further, the upper and lower roller adjusting portions 27 and 37 of the distortion removing roller device 6 move the correction roller 6 to an appropriate position corresponding to the width of the rib i or u attached to the pressing correction position.
a to 6d can be arranged, and distortion can be removed satisfactorily regardless of the width (shape) of the reinforcing material. In the above configuration, the distortion removal and the formation of the reverse distortion are performed at the same time. However, only the distortion removal operation can be performed by the distortion removal roller device.

Further, not only a curved panel but also a straight panel can be subjected to pressure correction and reverse distortion.

[0043]

As described above, according to the first aspect of the present invention, the panel is fed in a straight line direction, the bend of the panel is detected by the bend detecting means, and the roller traverse is performed by the correction control device based on the detected value. The device is controlled to adjust the position of the straightening roller in the width direction, and the roller rotation device is controlled to adjust the pressing angle of the straightening roller in the tangential direction that follows the bending of the panel. The panel can be continuously removed, the panel can be smoothly fed, and the straightening operation can be performed efficiently.

Further, the panel according to the second aspect of the present invention is fed in a linear direction, and the bending of the panel is detected by the bending detecting means. Based on the detected value, the correction control device controls the roller traversing device to correct the correction roller and the reverse distortion. The position of the forming roller in the width direction is adjusted, and the pressing angle θ of the correction roller and the reverse distortion forming roller is controlled by controlling the roller rotating device.
In the tangential direction that follows the panel bend,
In addition to continuously removing the welding distortion of the curved panel, it is possible to form a reverse distortion that eliminates the welding distortion generated at the time of manufacturing the box girder, so that the panel can be fed smoothly and the straightening operation can be performed efficiently.

According to the third aspect of the present invention, the correction rollers can be arranged at appropriate positions on both sides corresponding to the width of the reinforcing member attached to the pressing correction position for removing distortion. Irrespective of the width of. Furthermore, according to the invention described in claim 4,
The bending of the panel can be accurately detected over the length direction of the panel, and the roller can accurately act on the pressing correction position and / or the reverse distortion forming position.

[Brief description of the drawings]

FIG. 1 shows an embodiment of a continuous panel straightening apparatus according to the present invention, wherein (a) to (c) are plan views showing and explaining a straightening procedure, respectively, and (a) is a plan view explaining a state before straightening;
FIG. 3B is a plan view illustrating a state during correction, and FIG. 3C is a plan view illustrating a state after correction.

2 (a) to 2 (d) each show a box girder panel having an I-rib as a material to be corrected, (a) is a perspective view of the panel, and (b) is a front view of the panel with welding distortion. (C) is a front view of the panel from which welding distortion has been removed, and (d) is a front view of the panel in which reverse distortion has been formed.

3 (a) to 3 (d) each show a box girder panel having a U-rib as a material to be corrected, (a) is a perspective view of the panel, and (b) is a front view of the panel with welding distortion. (C) is a front view of the panel from which welding distortion has been removed, and (d) is a front view of the panel in which reverse distortion has been formed.

FIG. 4 is a partial plan sectional view showing the entire panel continuous straightening device.

FIG. 5 is a rear view showing the straightening machine main body.

6 (a) and 6 (b) show the straightening machine main body, respectively, and FIG. 6 (a) is a partial side sectional view of a straightening roller device,
(B) is an enlarged view of the A part of (a).

FIG. 7 is a rear partial cross-sectional view showing a distortion removing roller device and a reverse distortion forming roller device of the panel continuous straightening device.

FIG. 8 is a partial side sectional view showing a straightening roller device of the panel continuous straightening device.

FIG. 9 is a partial side sectional view showing a reverse distortion forming roller device of the panel continuous straightening device.

FIG. 10 is a rear partial sectional view showing a straightened state of the panel with U-ribs of the panel continuous straightening apparatus.

11 (a) and (b) show a straightened state by the same straightening roller device, (a) is a schematic rear view showing a straightened state of an I-ribbed panel, and (b) is a straightened state of a U-ribbed panel. It is a schematic rear view showing a state.

FIG. 12 is a schematic front view showing a correction state by the reverse distortion forming roller device.

FIG. 13 is a plan sectional view showing a bending detecting means of the panel continuous straightening apparatus.

FIG. 14 is a control configuration diagram of the panel continuous straightening device.

15A and 15B show another embodiment of a straightening roller, wherein FIG. 15A is a front view showing a straightened state of an I-ribbed panel, and FIG. It is a front view showing an aspect.

FIG. 16 is a plan sectional view showing another embodiment of the bend detecting means.

17 (a) and (b) show a conventional panel straight-line straightening method for a panel, (a) is an overall plan view, and (b) is a partially enlarged view.

FIGS. 18 (a) to 18 (c) each show a conventional panel-feeding straightening method for a panel, FIG. 18 (a) is a plan view for explaining before straightening, FIG. 18 (b) is a plan view for explaining during straightening, and FIG. FIG. 4 is a plan view illustrating a state after correction.

[Explanation of symbols]

 P panel i, u rib S Reference plane θ Press angle 1 Straightener body 2 Panel transport means 3 Roller conveyor device 4 Side roller device 5 Double frame 6 Strain removing roller device 6U, 6D Strain removing unit 6a-6d Straightening roller 7R 7L reverse distortion forming roller device 7U, 7D reverse distortion forming unit 7a, 7b reverse distortion forming roller 9 bending detecting means 9a, 9b displacement sensor 24, 34 roller traversing device 26, 36 roller rotating device 27, 37 roll width adjusting unit 28 Horizontal drive shaft 38 Horizontal shaft 29 Straightening roller drive 44, 54 Roller traversing device 46, 56 Roller rotating device 47, 57 Roll width adjusting unit 48 Horizontal drive shaft 49 Reverse distortion forming roller drive 58 Horizontal shaft

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Katsuo Ozawa 1375-1, Shimotsu-cho, Seagrass-gun, Wakayama Prefecture Inside Takada Kiko Co., Ltd. (72) Inventor Tadayoshi Fujisaka 1850 Minato, Wakayama-shi, Wakayama Sumikin Wakayama Plant Co., Ltd. (72) Inventor Shuji Hida 1-113-65 Minami Kohoku, Suminoe-ku, Osaka-shi, Osaka F-term in NSE Corporation (reference) 4E003 AA01 BA11 BA12

Claims (4)

[Claims] 1. A transport means for transporting a panel on which a reinforcing material is attached along a length direction linearly along a length direction, and at least a pair of upper and lower straighteners disposed at a correction position in the middle of the transport means. A continuous straightening device comprising: a straightening device that corrects by pressing a central portion of the panel by a roller, wherein a reference surface that is set along a transport direction of the panel and follows a curve in a plane of the panel is detected. A roller traversing device that can adjust the pressing position of the upper and lower correction rollers by moving the distortion removing roller device in the panel width direction,
A roller rotating device that can adjust the pressing angle of the upper and lower correction rollers by rotating these upper and lower correction rollers around a vertical axis, respectively, and the roller traversing device and the roller rotation based on a signal from the bending detection unit. A continuous straightening device for a panel, comprising a straightening control device for driving and controlling the device. 2. A conveying means for conveying a panel on which a reinforcing material is attached in a longitudinal direction linearly along a longitudinal direction, and at least a pair of upper and lower straightening means disposed at a correcting position in the middle of the conveying means. A straightening device for correcting distortion by pressing the panel by a roller, and a reverse distortion forming roller device for forming a reverse distortion by pressing the panel by at least one pair of reverse distortion forming rollers. A bend detecting unit is provided that detects a reference surface that is set along the panel transport direction and follows a bend in the plane of the panel, and moves the correction roller and the reverse distortion forming roller in the panel width direction, respectively. The roller traversing device capable of adjusting the pressing position, the correction roller and the reverse distortion forming roller are respectively rotated around a vertical axis to reduce the pressing angle. The integer can roller rotation device is provided, the bend detection unit panel continuous correction device characterized in that a straightening control device for driving and controlling the roller traverse device and the roller rotating device based on the signal. 3. A pressing position adjusting device which is provided with two upper and lower correcting rollers disposed in the correcting roller device in the width direction, and which can adjust the pressing correcting position by moving these correcting rollers toward and away from each other. The continuous panel straightening apparatus according to claim 1 or 2, wherein: 4. The continuous panel correction device according to claim 1, wherein the reference surface is a side surface of the reinforcing rib or a side edge of the panel.