KR20120077113A - Shape fitting type plate supporting apparatus for curvature forming system - Google Patents

Abstract

PURPOSE: A shape fitting type plate supporting apparatus for a curve forming system is provided to minimize the deformation of a plate due to the weight thereof by controlling the inclination of roll supports in a transverse and/or longitudinal direction and supporting plates corresponding to various curvatures of the plates. CONSTITUTION: A shape fitting type plate supporting apparatus for a curve forming system comprises a support table, a roll supports(1200) which support a metal plate(M) on the support table, and a tilting unit(1400) which idles correspondingly to transverse or longitudinal curve of the metal plate and regulates the tilting angle of the roll supports.

Description

Customized sheet support device for curved surface forming system {SHAPE FITTING TYPE PLATE SUPPORTING APPARATUS FOR CURVATURE FORMING SYSTEM}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet support apparatus for use in a curved sheet forming system of a metal sheet, and more particularly, to a curved sheet forming system capable of supporting a metal sheet according to a curved shape on which it is formed, in a system of curved sheet forming by a roller. It relates to a shape-fitting sheet support device. Furthermore, the present invention relates to a shape-fitting support apparatus for a metal sheet including a function of supporting the metal sheet in conformity with a shape, and including a feeding function, a collecting function, and / or a handling function of the metal sheet.

In general, not only metal flat plates but also metal curved plates having double curvatures are used in shipbuilding, aircraft, and automobile fields. In particular, metal curved sheets used as materials for ships are often thick thick plates, and various types of curved forming apparatuses have been conventionally proposed in order to mold thick metal sheets to have curved surfaces with double curvatures.

Popular curved forming systems include multi-point forming apparatus using a plurality of punches and corresponding molds. However, the molding apparatus of such a structure is still practical in forming a desired double curvature curved surface and is not practical in that excessive punches and molds are required.

As an alternative to this, a surface forming technology using a linear array rollset is registered. The technique is registered in Korea, which is a linear array rollset for forming a metal sheet having a double curvature of various shapes and a molding method using the same. It is well disclosed in patent 10-0668068. Disclosed is a drive roll train comprising a pedestal which is arranged to face in parallel at a predetermined interval, drive roller rows which are arranged in a row with the same direction of rotation on opposite sides of the pedestal, and are installed to be parallel to both of the drive roll rows. A plurality of idle roll rows of idle rolls, and means for driving the drive roll rows.

On the other hand, thick plates, ie, thick metal plates, used for ship manufacture, are difficult and unsafe in the plate input process before the surface forming and the plate collection operation after the surface forming. The width and length of shipboard thick plates range from several meters to several tens of meters and their weights range from several hundred kilograms to hundreds of tonnes, making it difficult to feed or recover such thick plates for curved surface forming. In addition, the metal plate after forming has a curved surface of a complex shape of double or multiple curvature, and thus is more difficult to handle than when flat.

Conventionally, the overhead crane 2 as shown in FIG. 27 has been used for the supply of the sheet before curved forming and the recovery of the curved shaped sheet. The ceiling crane 2 is provided with the clamp 2b which can hold the board | plate material M at the end of its wire rope 2a. FIG. 1 shows a state in which the plate M is placed on the lower molding part LR between the lower molding part LR and the upper molding part UR each consisting of roll sets.

Although not shown in detail, in order to supply the plate M, the clamp 2b handles the ceiling crane 2 holding the plate M, and puts the plate M on the lower forming portion LR. Next, after positioning the board | plate material M, the clamp 2b is loosened. In addition, after finishing the curved surface forming, the plate material M is clamped by the clamp 2b for the recovery of the curved back plate, and then the ceiling crane 2 is operated to pull the wire rope 2a. Lift up (M) little by little from side to side.

In the prior art, because of the molded parts of the curved surface forming apparatus and the door-shaped frame, the plate M cannot be directly lifted in the vertical direction, and thus it is difficult to inject or retrieve the plate M in the process progress direction.

Figures a and b) of Figure 28 illustrate the problems caused when recovering the curved sheet from the curved forming system. Referring to this, when using the overhead crane 2 to lift the clamp 2b holding the plate M laterally, the plate M is a curved forming system as shown in Fig. 2A. Part, in particular in the situation where the wire rope 2a of the overhead crane 2 hangs diagonally as it collides with the lower forming part LR or as shown in FIG. As the plate (M) is suddenly released from the system, a large amount of deflection occurs in one direction, which increases the risk of a safety accident. Further, when the plate (M) is put, it is difficult to position the plate (M) in the correct position, and when recovering the curved-shaped plate (M), the shape of the plate (M) is changed by the molding, that is, There is a difficulty in transferring the curved sheet stably. In addition, it causes a problem that excessive time is required for the input and recovery of the plate (M).

In addition, conventionally, there is no device for supporting a curved large-sized plate member in real time. Although a technique of supporting a curved sheet by a support device driven by a hydraulic method or a rack and pinion method has been proposed, this has been limited to a small plate.

Accordingly, one problem to be solved by the present invention is to provide a shape-fitting sheet support apparatus suitable for supporting a large metal sheet in conformity with the curved shape on which it is formed.

Another object of the present invention is to provide a sheet support apparatus including a metal sheet input function, a recovery function, and / or a handling function, in addition to the function of supporting the metal sheet in shape.

According to one aspect of the present invention, there is provided a plate support device for supporting a metal plate in a curved sheet forming system of a metal plate, the plate support device comprising: a support table; A roll support installed to support a metal plate on the support table; It includes a tilting unit for adjusting the tilt angle of the roll support by the structure that rotates in response to the horizontal or vertical valley of the metal plate.

Preferably, the tilting unit includes a tilting block, a longitudinal rotational axis installed in the longitudinal direction to be idling the tilting block, and a transverse rotational axis installed in the horizontal direction in the tilting block, the horizontal rotational axis And one of the longitudinal rotational shafts is connected to the roll support, and the other is connected to the support table.

More preferably, the tilting unit includes a tilting block, a pair of longitudinal rotational shafts installed at both sides in the longitudinal direction of the tilting block, and a pair of transverse directions rotatably installed at both sides of the tilting block. An axis of rotation, said lateral axis of rotation being connected to said roll support and said longitudinal axis of rotation being connected to said support table.

Preferably, the axis of the transverse axis of rotation and the axis of the longitudinal axis of rotation intersect each other.

Preferably, the support table includes a lower frame and an upper frame, and the roll support is disposed on the upper frame, and the roll support is connected to the upper frame by the tilting unit, so that the roll support The tilt angle is adjusted in the transverse or longitudinal direction with respect to the upper frame.

Preferably, the link mechanism is provided between the upper frame and the lower frame to allow horizontal rising and tilting of the upper frame; First driving cylinders whose both ends are respectively connected to the lower frame and the link mechanism to horizontally raise the upper frame; And an upper end connected to a portion of the upper frame away from the link mechanism and a lower end connected to the lower frame, the second drive cylinder tilting the upper frame upward.

Preferably, the link mechanism includes a pair of link sections that intersect in an "X" shape at the hinge point, the lower end of each of the pair of link sections being hingedly connected to the sliding block of the lower frame, One link section of the pair of link sections is hingedly connected to the sliding block of the upper frame, and the remaining link sections are separated from the upper frame.

Preferably, further comprising a trolley moving along the longitudinal rail in the longitudinal direction in which the metal plate is introduced and recovered, a support table on which the rail support is installed is installed.

Preferably, a transverse rail is provided on the trolley, and the support table can be moved laterally along the transverse rail.

According to another aspect of the present invention, there is provided a plate support device for supplying, retrieving, and supporting a metal plate in a curved sheet forming system of a metal plate, the plate geomagnetism device is a longitudinal direction in which the input and recovery of the metal plate is made A bogie moving along the directional rail; A support table movably disposed laterally along a transverse rail on said trolley; And a roll support installed to support the metal sheet on the support table.

The plate support apparatus according to the present invention further includes horizontal lifting means installed on the support table to horizontally raise or lower the roll support. At this time, the horizontal lifting means may be composed of the link mechanism and the first drive cylinder as described above.

The plate support apparatus according to the present invention may further include a tilt lift means installed on the support table to tilt the roll support. The tilt lifting means may include a second drive cylinder as described above, and when using the second drive cylinder, the second drive cylinder by inclinedly lifting one side of the roll support or the portion connected to the roll support . The tilt rise can be made.

According to the present invention, in cold curved forming of a metal sheet, one or more roll supports whose tilt angles are adjusted in the transverse direction and / or the longitudinal direction by the tilting unit support the sheet while corresponding to various curvatures of the sheet metal, It is possible to improve the molding quality by minimizing the deformation of the plate. In addition, in the prior art, there is a risk of falling of the plate during molding due to the property that the plate is moved in the longitudinal direction by the rotation of the upper drive roll of the curved forming system, according to this embodiment, Metal plates can be reliably supported in position, greatly reducing the risk of such a plate fall. The sheet support apparatus according to the present invention has the advantage of having the function of supporting the metal sheet being formed, as well as the transverse conveyance of the sheet and the input and / or withdrawal of the sheet in the longitudinal direction.

1 is a perspective view showing an example of a curved surface forming system to which a plate support device according to an embodiment of the present invention is applied.
2 is a view for explaining a vertical drive and a rotation drive of the upper roller of the curved forming system shown in FIG.
3 is a view for explaining the Z-axis rotation of the upper roll and the lower roll set of the curved forming system.
4 is a view for explaining the Z-axis rotating device of the lower roll set of the curved forming system.
5 is a view for explaining the shaping of the curved surface by the amount of reduction of the upper roll of the curved forming system.
6 is a view illustrating a process of forming a curved surface by pressing (or pressing) the upper roll of the curved forming system and rotating the upper roll.
7 is a view showing a process of forming a curved surface while forming the roll lines of the curved forming system.
8 shows the relationship between the transverse spacing and longitudinal spacing of the lower roll set of the curved forming system and the transverse curvature and the longitudinal curvature radius of the metal sheet.
9A and 9B are views for explaining ways of changing the ratio of the lateral spacing and the longitudinal spacing of the lower rolls of the curved forming system.
10 shows unformed regions occurring at the transverse and longitudinal edges of the metal sheet of the curved forming system.
11A and 11B illustrate a method for forming a transverse edge unformed region of a metal sheet using the curved forming system.
12 is a view for explaining a method of forming a curved surface in an oblique direction on a metal plate using the curved surface forming system.
13 shows the application and advantages of the horizontal roll configuration of the top roll using the curved forming system.
14 is a view for explaining various curved forming methods that can be implemented using the curved forming system, and various types of curved surfaces obtained therefrom.
15 is a view for showing a method and procedure for forming a saddle type double curved surface by the curved forming system.
16A and 16B show examples of a curved surface forming method using a curved surface forming apparatus having two upper rollers of the curved surface forming system.
FIG. 17 is a view more specifically showing the manner of the simple twisted-surface shaping shown in FIG. 16B.
18 is a block diagram schematically illustrating a concept of controlling the curved forming system.
19 is a perspective view showing a shape-fitting sheet support device according to an embodiment of the present invention in a state where the bogie is omitted.
20 is a side view illustrating a state in which the shape-supporting plate supporting apparatus according to an embodiment of the present invention raises the roll support horizontally.
Figure 21 is a side view showing a state in which the shape-fitting sheet support device according to an embodiment of the present invention tilts the roll support.
Figure 22 is a front view showing a state in which the shape-fitting sheet support device according to an embodiment of the present invention is a custom support to the horizontal curvature of the metal sheet.
Figure 23 is a plan view for explaining that the shape-fitting plate supporting apparatus is moved in the transverse direction and the longitudinal direction according to an embodiment of the present invention.
24 and 25 are views showing a state in which the shape-fitting sheet support apparatus according to an embodiment of the present invention is applied to the curved forming system to participate in the input, recovery, support and handling of the metal sheet.
26 is a perspective view for explaining a tilting unit of a shape-fitting sheet support device according to an embodiment of the present invention.
27 and 28 are views for explaining the prior art.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, a detailed description of the present invention will be made with reference to the accompanying drawings. First, an example of a curved surface forming system of a plate that performs various curved forming will be described first, and then the same or the like curved surface. A shape-fitting support device according to the present invention suitable for supporting and handling various types of plate materials curved by a forming system will be described.

Curved Surface Forming System

Hereinafter, the example (s) of the curved surface forming system of the plate to which the sheet supporting device according to the present invention can be applied will be described. The following description of the curved forming system is performed by the sheet supporting device according to the present invention. It is provided to introduce whether it can be advantageously applied to the surface forming.

1 is a perspective view of a curved surface forming system of a metal sheet according to an embodiment of the present invention. 1 shows a combination of orientations consisting of the X-axis, the Y-axis, and the Z-axis. In this specification, the X-axis direction is defined as the longitudinal direction, the Y-axis direction is the transverse direction, and the Z-axis direction is the same as the height direction.

Referring to FIG. 1, a curved sheet forming system 1 of a metal sheet according to an embodiment of the present invention may include an upper horizontal girder 10, a frame 20 supporting the upper horizontal girder 10, and the upper horizontal girder 10. It includes one upper roller 30 installed on the girder 10 and two pairs of lower rollers 40 mounted on the pedestal 4 under the device. The upper roller 30 includes an upper roll 32 and a mold 34 supporting the upper roll 32, and the mold 34 includes devices for vertical and rotational driving of the upper roll 32. Is installed. Each of the lower rollers 40 includes a lower roll 42 and a frame 44 supporting the lower roll 42.

The upper roller 30 may include a vertical driving device of the upper roll 32 and a rotation driving device of the upper roll 32 therein, such that the metal sheet may be curved formed by the amount of reduction of the upper roll 32. The upper roll 32 which rotates with respect to an axis can continuously shape a curved surface to a metal sheet along the roll line through which the upper roll 32 passes, while conveying a metal sheet in an X-axis direction, ie, a longitudinal direction. The lower rollers 40 are movable in the horizontal direction, that is, the X-axis direction and the Y-axis direction, and the horizontal and longitudinal spacing of the two pairs of lower rolls 42 can be adjusted in the horizontal direction. Do.

2, the upper roller 30 is installed to penetrate the upper horizontal girder 10. In addition, the upper roller 30 includes a frame 34 including a cylinder case 34a and a roll head 34b, and the cylinder case 34a includes a vertical driving device 35 of the upper roll 32. The roll head 34b is provided with a rotation drive device 36 for supporting the upper roll 32 and rotating the upper roll 32.

The vertical drive device 35 includes a first drive motor 351, a reducer 352, a screw 354, and a ram 355. The vertical drive 35 also includes a coupling 353 for dynamically connecting the shaft of the reducer 352 to the screw 354. The output shaft of the first drive motor 351 is connected to the reducer 352 for deceleration, and the shaft of the reducer 352 is dynamically connected to the screw 354 by a coupling 353. Therefore, the screw 354 may be driven to rotate at a rotation speed appropriately reduced by the reducer 352 when the first drive motor 351 is driven. Ram 355 is connected to the screw 354 to move in the vertical direction, the end of the ram 355 is coupled to the roll head 34b. Therefore, the vertical drive device 35 can vertically move the upper roll 32 supported by the roll head 34b by moving the roll head 34b vertically.

The rotary drive device 36 includes a second drive motor 362, a power transmission belt 364, a speed reducer pulley 365, and a speed reducer (not shown). The second drive motor 362 is disposed on one side of the roll head 34b, and its output shaft pulley and the reducer pulley 365 are powered by the power transmission belt 364. A reducer (not shown) which receives rotational power from the reducer pulley 365 and decelerates and rotates the upper roll 32 is disposed inside the upper roll 32. Since the reducer is disposed inside the upper roll 32, the occupancy volume of the rotation drive device 36 on the roll head 34b side can be greatly reduced, whereby the upper roller 30 having a compact structure can be realized. . In addition, the upper roller 30 and the upper roll 32 belonging thereto are configured to be horizontally moved horizontally along the upper horizontal girder 10 or integrally with the horizontal girder 10. To this end, a guide portion for guiding the upper roller 30 may be installed on the upper horizontal girder 10, or a guide portion for guiding the upper horizontal girder 10 may be installed on the upper portion of the frame 20 (see 1). .

Referring back to FIG. 1, the two pairs of lower rollers 40 are configured to be positioned in a horizontal direction by a horizontal feeder and a driving means, not shown. Therefore, the lower rolls 42 of the lower rollers 40 may be transported in the horizontal direction. Two pairs of lower rolls 42 cooperate with one upper roll 32 to form a curved surface of double curvature, so that the two pairs of lower rolls 42 constitute one lower rollset. In the curved forming apparatus according to the present embodiment, one lower roll set cooperates with one upper roll to form a metal sheet into a curved surface having a double curvature. In addition, as described in detail below, the lower rolls 42 constituting the lower roll set are preferably configured such that the horizontal gap and the vertical gap are adjusted. The operation of adjusting the lateral spacing and the longitudinal spacing of the lower rollers 40 or the lower rolls 42 belonging to the lower rollers 40 and the operation of horizontally moving the lower rollers 40 or the lower rolls 42 belonging thereto as described above are separate. It is preferred to be made by the device. The configuration in which the lateral spacing and the longitudinal spacing of the lower rolls 42 are adjustable can be used to adjust the amount of lateral curvature and the amount of vertical curvature of the curved surface to be formed on the metal sheet, and the configuration which makes the lower rollset horizontally movable It is useful to minimize the unformed area of the plate edge.

Referring to FIG. 3, the curved forming system according to an embodiment of the present invention is configured such that the upper roll 32 is configured to rotate in the Z-axis while one lower roll set RS cooperates with the upper roll 32. ) Is configured to Z-rotate. In the present specification, 'Z-axis rotation' is defined as a horizontal rotation about the Z axis (see FIG. 1). In the accompanying drawings including FIG. 3, the lower roll set RS is illustrated by connecting both pairs of lower rolls 42 with dotted lines. The configuration for enabling Z-axis rotation of the upper roll 32 and the lower roll set RS is very useful for quickly changing the sheet forming direction. The lower roll set RS comprising two pairs of lower rolls 42 may be Z-rotated by the turntable 45, an example of means for rotating the turntable 45 is shown in FIG. 4.

Referring to FIG. 4, a ring gear 452 is formed on a bottom surface of the turntable 45 in a circle having the same center as the center of the turntable 45, and an internal gear or an internal gear 454 is formed in the ring gear ( 452). When the internal gear 454 is rotated by the rotational force of the motor, the ring gear 452 meshed therewith may rotate to rotate the turntable 45. Rotating the turntable 45 using the ring gear 452 and the internal gear 454 is very advantageous in finely controlling the Z-axis rotation amount of the lower roll set RS.

As shown in FIG. 5, the curved forming system according to the present embodiment vertically moves the upper roll 32 using, for example, a vertical driving device 35 as shown in FIG. 32 can be bent to vertically press the metal plate M supported by the lower rolls 42 in the lower roll set. By this bending shaping, bending deformation occurs in the metal sheet M, and basically, a curved surface is obtained by this bending deformation. In this case, the bending deformation amount of the metal plate M may be determined by the reduction amount d of the upper roll 32.

 Further, the bending deformation of the metal plate M is, for example, by the rotation of the upper roll 32 using the rotation drive device 36 as shown in Fig. 2, the X-axis direction, that is, the longitudinal direction (or, It can be carried out while continuously conveying the metal plate (M) in the rolling direction). Referring to FIG. 6, it can be seen that the metal plate M is transferred from the position (a) of FIG. 6 to the position (b) of FIG. 6 by the reduction and rotation of the upper roll 32. Referring to FIG. 7, the roll line L is formed in a straight line shape in the X-axis direction, that is, in the longitudinal direction, in the metal plate M to be transferred by the reduction of the rotating upper roll 32. After one roll line L is formed, the metal sheet M is moved by varying the forming position by the upper roll 32 and the lower roll set RS in the transverse direction, as shown in FIG. 7. A plurality of roll lines L which are long in the longitudinal direction can be formed side by side in the lateral direction, whereby the deformation due to the surface shaping is distributed over almost the entire area of the metal sheet M except the edge region. . Molding of the edge region of the metal sheet M may be made by horizontal movement of the lower roll set RS mentioned above and described in more detail below.

Referring to (a) and (b) of FIG. 8, the transverse radius of curvature Ry and the longitudinal radius of curvature Rx of the sheet to be formed are the relative ratios of the transverse spacing and the longitudinal spacing between the lower rolls 42 of the lower roll set. Can be adjusted according to different. That is, the greater the lateral spacing of the lower rolls 42, the greater the lateral curvature generation. The greater the longitudinal spacing of the lower rolls 42, the greater the lateral curvature generation. According to one embodiment of the invention. Transverse spacing and longitudinal spacing of the lower rolls 42 may be made independently of each other. That is, the longitudinal spacing of the lower rolls 42 is changed differently while the transverse spacing of the lower rolls 42 is fixed, or the transverse spacing of the lower rolls 42 is fixed while the longitudinal spacing of the lower rolls 42 is fixed. The ratio of the longitudinal curvature and the transverse curvature of the sheet surface can be controlled in a different way.

Fixing the lateral spacing of the lower rolls 42 and changing the longitudinal spacing of the lower rolls 42, as shown in (a) and (b) of Figure 9a, the lower as shown in (a) and (b) of Figure 9b It is possible to fix the longitudinal spacing of the rolls 42 and to adjust the transverse spacing of the lower rolls 42. In FIG. 9a, two longitudinal spacing adjusting blocks 4a, 4a are used, and in FIG. 9b. Two transverse spacing adjusting blocks 4b and 4b can be used. In addition, as shown in (c) of FIG. 9A and FIG. 9B (c), in both cases, all the lower rolls in the lower rollset are horizontally adjusted in the X-axis direction or the Y-axis direction by the rollset feed block 4M. Can be moved. The rollset feed block 4M may be the same as the pedestal 4 shown in FIG. 1 or may be installed on the pedestal 4. As described above, the configuration in which only one of the horizontal gap and the vertical gap may be adjusted provides ease in actual device fabrication.

Even if the molding is completed for almost the entire area of the plate, there is an unformed area indicated by hatches along the transverse and longitudinal edges of the metal plate M as shown in FIG. For the shaping of the edge portion to minimize these unformed areas, the positional movement of the lower rollset as mentioned above is used. Referring to FIG. 11A, for example, by moving the rollset feed block 4M provided in the rollset feeder laterally, the lower rollset RS is transferred to a position capable of supporting the transverse edge of the metal plate M. As a result, the unmolded region of the transverse edge can also be formed along the edge roll line EL. In addition, referring to FIG. 11B, for example, the lower roll set (RS) is transferred to a position capable of supporting the longitudinal edge of the metal plate (M), thereby enabling molding of the unformed region of the longitudinal edge.

FIG. 12 is a view for explaining two examples of a method of forming a metal sheet with respect to a diagonally designed path. 12 (a) shows the shaping path of the diagonal line with a dotted arrow. FIG. 12 (b) rotates the metal plate M to change the shaping path of the diagonal into a straight shaping path, and then performs molding using the upper roll 32 and the lower rolls 42. 12 (c) illustrates the metal plate M after the Z-axis rotation of the upper roll 32, the lower rolls 42, or the lower roll set to correspond to the diagonal forming path as described above. Show you how. The method shown in FIG. 12 (b) is not only difficult to work with but also interferes with the frame of the curved forming system when rotating the metal sheet. On the other hand, using the method shown in Fig. 12C, the operation is simple, there is no fear of interference between the metal plate M and the frame of the curved forming system, and it is very advantageous for forming a large plate.

Figure 13 shows a molding method utilizing the positional movement of the upper roll. If the upper roll 30 is fixed to the upper horizontal girder, the metal sheet M must be moved laterally for forming the entire area of the metal sheet, and thus the curved surface to secure sufficient forming space. The width of the molding system will need to be unnecessarily large. However, according to an embodiment of the present invention, the upper roller 30 is moved along the upper horizontal girder 10 as shown in FIG. 13, so that the upper roll 32 provided in the upper roller 30 is It can be moved in the transverse direction (ie, Y axis direction; see FIG. 1). Therefore, when the upper roll 32 and the lower roll 42 position movements are used, molding can be performed over almost the entire area of the metal sheet M without moving the metal sheet M. FIG. This makes it possible to reduce the working space and significantly reduce the frame size of the surface forming apparatus.

14 is a view for explaining various curved forming methods and various types of curved surfaces obtained therefrom according to the present invention. In FIG. 14, the lower rolls that are active, that is, the lower rolls that directly participate in molding and the inactive lower rolls, that is, the lower rolls that do not directly participate in molding are distinguished.

As shown in FIG. 14, according to the arrangement of the upper rolls 32 and the lower rolls 42 and the method of using the lower rolls 42 by horizontal shifting of the lower roll sets RS, longitudinal single surface shown in (a), transverse single surface shown in (b) of FIG. 14, concave double surface and saddle double surface shown in (c) of FIG. 14, (d) of FIG. Various shapes of curved surfaces, such as twisted concave shown in Fig. 2, can be formed on the metal sheet.

 FIG. 15 illustrates a method of forming a saddle-shaped double curved surface in detail, and as shown in FIG. 15A, after forming a single transverse surface using an upper roll 32 and two lower rolls 42. It is possible to shape the saddle shape by inverting the plate M and adding the vertical curvature in the manner shown in Fig. 15B.

16A and 16B show a curved surface forming system of a metal plate having two upper rollers 30 and upper rolls 32 belonging thereto according to another embodiment of the present invention. FIG. 16A shows a method of forming a double curved surface as described above on the metal sheet M using the curved forming system, in which case the upper roll 32 of one of the two upper rolls 32, 32 is formed. Take part in the surface shaping. FIG. 16B shows a method of forming a simple twisted curved surface on the metal sheet M using the curved forming system, in which case both upper rolls 32 and 32 participate in twisted curved forming.

FIG. 17 is a view showing in more detail an example of a simple twisted-surface forming as shown in FIG. 16b, where the arrangement of the pair of lower rolls 42, 42 in front is shown in the dashed block F of FIG. 17. In FIG. 17, the arrangement of the pair of lower rolls 42 and 42 in the rear is shown in the dotted block B of FIG. 17, and the arrangement of the two upper rolls 32 and 32 is shown in the dotted block U in FIG. 17. Referring to this, each of the front pair of bottom rolls 42 and 42 and the rear pair of bottom rolls 42 and 42 each support the metal sheet M with different heights of the left and right bottom rolls. It can be seen that the arrangement of the lower rolls 42 and 42 and the height arrangement of the rear lower rolls 42 and 42 are opposite to each other. The four lower rolls 42, 42, 42 have different heights in front, rear, left, and right, whereby a simple twisted curved surface can be formed from the flat plate.

FIG. 18 is a block diagram illustrating a preferred control concept of the apparatus for forming a curved surface of a metal sheet according to the present invention. Referring to FIG. 18, the control system includes an upper roll vertical drive, an upper roll rotation drive, an upper roll horizontal drive device Controls the lower rollset lateral / longitudinal spacing device, the lower rollset horizontal shifter, the lower rollset Z-axis rotator and / or the lower roll vertical drive.

<Shape Sheet Support Device>

Hereinafter, an apparatus for supporting a shape-fitting plate according to an embodiment of the present invention may be applied to the above-described curved forming system or a similar curved forming system to support the metal sheet according to the shape of the molded curved surface. The plate supporting apparatus according to the present embodiment to be described below has a function of loading, withdrawing and handling the metal sheet in addition to the function of supporting the metal sheet. In addition, the plate supporting apparatus according to the present embodiment is suitable for a curved forming system for curved forming a large metal plate having a length of about 10m.

19 is a perspective view of the shape-fitting sheet support apparatus according to an embodiment of the present invention with the bogie omitted, and FIG. 20 is a shape-fitting plate support apparatus according to an embodiment of the present invention horizontally lifts the roll support. Figure 21 is a side view showing a state to make, Figure 21 is a side view showing a state in which the shape-specific plate support device according to an embodiment of the present invention tilts the roll support, Figure 22 is a shape according to an embodiment of the present invention The custom plate support device is a front view showing a state in which the custom support according to the transverse curvature of the metal plate, Figure 23 illustrates that the shape custom plate support device is moved in the transverse direction and longitudinal direction according to an embodiment of the present invention 24 and 25 is a planar sheet metal support device according to an embodiment of the present invention is applied to the curved surface forming system metal sheet material Figure 3 is a view showing a state participating in the input, recovery, support and handling of the overall, Figure 26 is a perspective view for explaining the tilting unit of the shape-fitting plate support apparatus according to an embodiment of the present invention.

As shown in FIGS. 19 to 22, the shape-fitting sheet support apparatus 1000 according to the present embodiment includes a support table 1100 and two pairs of roll supports 1200. In addition, the shape-fitting support device 1000 includes a bogie 1300 that is movable in the longitudinal direction along a longitudinal rail passing through the forming space of the curved forming system (not shown in FIG. 19). The bogie 1300 includes a longitudinal traveling wheel 1301 that rolls along the longitudinal rails. The roll support 1200 is installed above the support table 1100, the support table 1100 includes a transverse traveling wheel 1101 at the bottom, the transverse traveling wheel 1101 is the bogie ( Rolling motion along the transverse rails 1302 provided on top of 1300 allows the transverse movement of the support table 1100 and the roll support 1200 provided thereon.

Therefore, the shape-fitting sheet support apparatus 1000 can move the metal sheet prior to molding by the longitudinal traveling wheel 1301 of the trolley 1300 to inject the metal sheet into the curved forming system, and The metal plate can be recovered by carrying the subsequent metal plate. In addition, the shape-fitting sheet support device 1000, by the transverse running wheel 1101 and the transverse rails 1302 freely move the plate in the transverse direction during curved forming, so that the metal plate is twisted in the transverse direction You can correct it.

The support table 1100 includes a lower frame 1110 and an upper frame 1120. The above-described lateral traveling wheel 1101 is provided in the lower frame 1110.

As shown in FIGS. 20 and 21, between the lower frame 1110 and the upper frame 1120, the roll support 1200 may be allowed to rise and descend while the roll support 1200 may be horizontally raised and lowered. A scissor link mechanism 1130 is installed that allows for longitudinal tilt adjustment of the.

The link mechanism 1130 includes a pair of link clauses 1131 and 1132 that intersect in an "X" shape at the hinge point. Lower ends of each of the pair of link sections 1131 and 1132 are hingedly connected to a sliding block (not shown) of the lower frame 1110. One link section 1131 of the pair of link sections 1131 and 1132 is hingedly connected to a sliding block (not shown) of the upper frame 1120, and the other link section 1132 is connected to the upper frame. Supported by 1120, it is separated from the upper frame 1120.

In addition, the lower frame 1110 includes a first drive cylinder 1140 for horizontally raising and lowering the upper frame 1120 and the roll support 1100 installed thereon, the upper frame 1120 and the roll support 1100 installed thereon. ) Is provided with a second drive cylinder 1150 for tilting up and down.

One end of the first driving cylinder 1140 is connected to the lower frame 1110, and the other end is connected to one of the link sections 1131 and 1132. Accordingly, as the first drive cylinder 1140 extends and retracts, the link sections 1131 and 1132 of the link mechanism 1130 are opened or contracted with each other and the upper frame 1110 and the roll support thereon. 1100 may be lowered or raised horizontally. Support pillars 1103 supporting the lowered upper frame 1120 protrude upward from the lower frame 1110.

One end of the second driving cylinder 1150 is connected to one link section 1132 of the link sections of the link mechanism and the other end is connected to the upper frame 1120. Accordingly, as the second driving cylinder 1150 extends, only one side of the upper frame 1120 is raised, thereby vertically moving the upper frame 1120 and the roll support 1100 installed thereon. You can raise it at an angle. One end of the second driving cylinder 1150 may be connected to the lower frame 1110 instead of the link section.

The roll support 1200 is a portion supporting the metal plate, and includes a roll frame 1210 and a plurality of support rolls 1220 rotatably installed on the roll frame 1210. The roll support 1200 is adjusted in the tilt angle according to the horizontal and longitudinal curved shape of the plate. In order to adjust the tilt angle, the shape-fitting plate support apparatus 1000 according to the present embodiment includes a tilting unit 1400.

Referring to FIG. 26, the tilting unit 1400 includes a pair of longitudinal rotational axes 1410, a pair of lateral rotational axes 1420, and a tilting block 1430. A pair of longitudinal rotating shafts 1410 are rotatably installed on both sides of the tilting block 1430, and a pair of horizontal rotating shafts 1420 are rotatable on both sides of the tilting block 1430. Is installed. The pair of longitudinal rotational shafts 1410 is connected to the upper frame 1120 of the support table 1100 by a first bracket 1440, the pair of lateral rotational shafts 1420 is the second bracket 1450 ) Is connected to the roll frame 1210 of the roll support 1100. At this time, it is preferable that the axis of the longitudinal axis of rotation 1410 and the axis of the axis of rotation 1420 cross each other.

Accordingly, in the tilting unit 1400, the horizontal rotating shaft 1420 rotates with respect to the tilting block 1430 according to the horizontally curved surface shape of the metal plate M as illustrated in FIG. 22. The horizontal tilting angle of 1200 is adjusted, whereby the roll support 1200 supports the metal plate M having a transverse curved shape in an inclined state.

Referring to FIG. 26 again, when the tilting block 1430 is idling with respect to the longitudinal axis of rotation 1410, the tilting unit 1400 may rotate in the longitudinal direction of the roll support 1200 according to the longitudinal curved shape. The tilt angle is adjusted, whereby the roll support 1200 may support the metal plate M having a longitudinal curved shape in an inclined state.

The tilting unit 1400 may naturally adjust the lateral inclination and the longitudinal inclination of the roll support 1200 according to the curved shape of the metal plate, that is, the horizontal or vertical valleys, without applying a separate force.

Referring to FIG. 23, the trolley 1300 may be moved in the longitudinal direction by the longitudinal traveling wheel 1301 in the feeding direction of the metal plate, and the support table along the transverse rail 1302 provided in the trolley 1300. It is well seen that 1100 can be moved laterally. Accordingly, the roll support 1200 installed on the support table 1100 may be moved in the longitudinal direction and the transverse direction while supporting the metal plate. By the tilting unit 1400 provided between the roll support 1200 and the support table 1100, the roll support 1200 may have a tilting angle adjusted in a horizontal direction and a longitudinal direction.

24 and 25, the shape-fitting plate supporting apparatus 1000 according to the present embodiment moves along the longitudinal rails R in which the longitudinal wheels roll, while supporting the metal sheet M. Referring to FIGS. And by using two sets of plate support devices 1000, 1000 comprising sets of roll supports 1200, suitable for supporting large metal plates on both sides in the longitudinal direction, and the large length and In spite of the central deflection due to this, the roll support 1200 can be horizontally raised or properly inclined to support the large metal plate reliably.

If the cold curved forming system has been developed and applied in various forms before, no device has been developed that can support a large sheet during curved forming. Using the plate support apparatus 1000 according to the present embodiment as described above, the metal plate can be supported and handled according to various curved shapes that change in real time during molding after examining the processing size and shape of the metal plate. .

There is a longitudinal rail R at the bottom where the curved forming system 1 is installed in the feed direction for drawing into the initial flat curved forming system 1. Since the plate support apparatus 1000 includes the trolley | bogie 1300 provided with the longitudinal wheels 1301 rolling on the longitudinal rail R, the metal plate M material can be pulled in and collect | recovered quickly. In addition, the height (Stroke) of the roll support 1200 can be adjusted horizontally or inclined, and the support corresponding to the vertical grain of the large metal plate is possible. In addition, as the metal plate M is molded, it has an irregular curvature (vertical or transverse). At this time, by using a tilting unit 1400 as shown in FIG. 26, the roll support 1200 is in the transverse direction. You can naturally change the tilt angle and the longitudinal tilt angle.

1000: sheet support device 1100: support table
1200: roll support 1300: bogie
1400: tilting unit 1101: lateral traveling wheel
1301: longitudinal running wheel 1032: transverse rail
1110: lower frame 1120: upper frame
1130: link mechanism 1140: first drive cylinder
1150: second drive cylinder 1210: roll frame
1220: support roll

Claims (14)

A sheet support device for supporting a metal sheet in a curved sheet forming system of a metal sheet,
Support table;
A roll support installed to support the metal plate on the support table; And
And a tilting unit configured to adjust the tilt angle of the roll support by a structure that rotates in correspondence with the transverse or vertical valleys of the metal sheet. The tilting unit of claim 1, wherein the tilting unit includes a tilting block, a longitudinal rotational shaft installed in the longitudinal direction in the tilting block, and a transverse rotational shaft installed in the horizontal direction in the tilting block. And one of the rotating shaft and the longitudinal rotating shaft is connected to the roll support, and the other is connected to the support table. The tilting unit of claim 1, wherein the tilting unit includes a tilting block, a pair of longitudinal rotational shafts rotatably installed on both sides of the tilting block, and a pair of transverse directions rotatably installed on both sides of the tilting block. And a rotation axis, wherein the transverse rotation axis is connected to the roll support and the longitudinal rotation axis is connected to the support table. The plate support apparatus of claim 2 or 3, wherein the axis of the lateral rotational axis and the axis of the longitudinal rotational axis cross each other. The roll support according to claim 1, wherein the support table includes a lower frame and an upper frame, and the roll support is disposed on the upper frame, and the roll support is connected to the upper frame by the tilting unit. The support is a plate support device of a curved forming system, characterized in that the tilt angle is adjusted in the transverse or longitudinal direction with respect to the upper frame. The apparatus of claim 5, further comprising: a link mechanism provided between the upper frame and the lower frame to allow horizontal raising and tilting of the upper frame; First driving cylinders whose both ends are respectively connected to the lower frame and the link mechanism to horizontally raise the upper frame; An upper end connected to a portion of the upper frame away from the link mechanism and a lower end connected to the link mechanism or the lower frame further comprising a second drive cylinder for tilting the upper frame up; Plate support device. The method according to claim 6, wherein the link mechanism comprises a pair of link sections that intersect "X" shape at the hinge point, the lower end of each of the pair of link sections is hingedly connected to the sliding block of the lower frame, One link section of the pair of link sections is hingedly connected to the sliding block of the upper frame, and the remaining link sections are separated from the upper frame. The curved surface forming method according to claim 1, further comprising a bogie moving along the longitudinal rail in a longitudinal direction in which the metal plate is inserted and recovered, and a support table provided with the rail support is installed on the bogie. Plate support device of the system. The plate support apparatus of claim 8, wherein a transverse rail is provided on the trolley, and the support table is moved laterally along the transverse rail. A sheet support device for supplying, recovering and supporting a metal sheet in a curved sheet forming system of a metal sheet,
A bogie moving along the longitudinal rail in the longitudinal direction in which the input and recovery of the metal sheet is made;
A support table movably mounted in a transverse direction along a transverse rail on said trolley; And
And a roll support installed to support the metal sheet on the support table. 11. The plate support apparatus according to claim 10, further comprising horizontal lifting means installed on the support table to horizontally raise or lower the roll support. 12. The plate support apparatus according to claim 10 or 11, further comprising: tilting means provided on the support table to tilt up the roll support. The plate support apparatus according to claim 10, further comprising a tilting unit configured to adjust the tilt angle of the roll support by a structure that rotates in correspondence with the transverse or longitudinal valleys of the metal plate. The tilting unit of claim 13, wherein the tilting unit includes a tilting block, a longitudinal rotational axis installed in the longitudinal direction in the tilting block, and a transverse rotational axis installed in the horizontal direction in the tilting block. And one of the rotating shaft and the longitudinal rotating shaft is connected to the roll support, and the other is connected to the support table.

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