JP2012240113A - Rolling method and rolling device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rolling method capable of increasing the rolling reduction of a material in one rolling process by rolling in a direction orthogonal to a feed direction of the material in order to generate a deformed cross section material, and to provide a rolling device capable of achieving the compact constitution by adopting the rolling method.SOLUTION: A rolling roller is rolled to the direction (Y-axis direction) orthogonal to the feed direction of a steel material 20 (X-axis direction), and the steel material 20 is rolled by the rolling roller. The strain caused by rolling is aggregated in both ends in the feed direction of the steel material 20 in the portion rolled by a series of rolling actions of the rolling roller, that is, a strain area 30b and a constriction part 30c are formed.

Description

  The present invention relates to a technique for rolling a profile section material and a rolling apparatus.

  Conventionally, the dimension in the length direction is sufficiently larger than the dimension in the width direction, and the cross-sectional shape perpendicular to the length direction is convex (that is, the thickness varies in the width direction). A technology for generating a strip member (hereinafter referred to as a deformed strip) having a shape having a shape (hereinafter referred to as a deformed shape) by rolling is known, and for example, the technology is disclosed in Patent Document 1 shown below. Is known.

Patent Document 1 discloses a technique related to a rolling apparatus configured to perform rolling in the material feeding direction (that is, the length direction) (that is, the material feeding direction and the rolling direction are the same). .
However, the deformed strip generated by the rolling apparatus having such a configuration has a problem that distortion is accumulated in the length direction and warpage and wrinkles are likely to occur.

  Therefore, in order to eliminate the occurrence of warping and wrinkles in the deformed strip, a technology related to a rolling apparatus configured to perform rolling in a direction orthogonal to the feed direction of the material has been developed, for example, the following patents The technique is disclosed in Document 2 and is publicly known.

  Patent Document 2 discloses a conventional rolling device configured to roll a rolling roller in a direction orthogonal to the material feeding direction, and rolls the material in a direction orthogonal to the feeding direction (that is, the width direction). By doing so, it is possible to suppress the occurrence of distortion in the feed direction of the material and to generate a deformed strip with less warpage and wrinkles.

The “deformed strip” as used herein refers to a steel material having a sufficiently large length in the length direction compared to the width direction, and a shape having a constant cross-sectional shape perpendicular to the length direction. Means.
And when calling it "an irregular strip", it points out that the distribution of a residual stress is substantially equal in the arbitrary positions with respect to the length direction.

  In addition, the steel material has a sufficiently large dimension in the length direction compared to the dimension in the width direction, but the cross-sectional shape orthogonal to the length direction is not constant (there is a constriction, etc.) and is arbitrary in the length direction In this position, the distribution of the residual stress is not uniform, so that it is defined as a “deformed cross-section material”, and is handled separately from the “deformed strip”.

JP-A-61-129201 Japanese Patent Laid-Open No. 1-138033

However, in the conventional rolling apparatus disclosed in Patent Document 2, in order to suppress the occurrence of distortion in the material feeding direction, the material rolling direction in one rolling roller is set small, and the material feeding direction In the configuration, a plurality of rolling rollers are provided in multiple stages, and the material is rolled in a plurality of times.
For this reason, since a rolling device becomes long toward the feed direction of material, it was difficult to constitute a rolling device compactly.

In addition, for example, when a material is cut at a predetermined thickness in a direction perpendicular to the length direction, and the cut material becomes a part as it is, in order to obtain a homogeneous part, the material is “an irregular shape”. Article "must be used.
On the other hand, for example, when parts are produced by punching or pressing the material, a surplus part (part that becomes scrap) is set in the material, but the surplus part has distortion or the like However, since there is no problem even in such a case, in such a case, a “deformed cross-section material” can be adopted.
However, in the past, there is no technology to generate “deformed cross-section material”, so even if “deformed cross-section material” can be used for applications, there is no choice but to adopt “deformed strip”. Met.

  The present invention has been made in view of such a current problem, and by rolling in a direction orthogonal to the feed direction of the material to produce a deformed cross-section material, the reduction ratio of the material in a single rolling process can be reduced. An object of the present invention is to provide a rolling method that can be enlarged, and to provide a rolling device that enables a compact configuration by adopting this rolling method.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

  That is, in Claim 1, it is a rolling method which rolls a rolling roller in the direction orthogonal to the feed direction of material, and rolls the said material with the said rolling roller, Comprising: By a series of rolling operation | movement of the said rolling roller, The strain caused by rolling is concentrated at both ends of the portion to be rolled in the material feeding direction.

  According to a second aspect of the present invention, the distortion is concentrated on the surplus portions set at the both end portions.

  According to a third aspect of the present invention, the amount by which the material is reduced by the rolling roller is set to an amount at which the distortion occurs.

  In Claim 4, after the rolling process which rolls the material with the rolling roller, a press process is arranged, and the material is intermittently supplied to the rolling process at a predetermined feed pitch, and the material is intermittently supplied. The timing of sending is synchronized with the timing of press forming in the pressing step.

  According to a fifth aspect of the present invention, a rolling roller is provided that rolls in a direction perpendicular to the material feeding direction, and the material is rolled in a direction perpendicular to the material feeding direction by the rolling roller to generate a modified cross-section material. In addition, a press device for press forming is disposed downstream of the rolling roller with respect to the material feeding direction, and the rolling timing of the rolling roller and the press forming timing by the press device are synchronized. is there.

  According to a sixth aspect of the present invention, the rolling roller is connected to the press device via a link mechanism and is driven by a drive source of the press device.

  As effects of the present invention, the following effects can be obtained.

  In claim 1, the irregular cross-section material can be generated by rolling. Moreover, the space of a rolling process can be made compact.

  In Claim 2, the quality of the product manufactured using a profile cross-section material is securable.

  According to the third aspect of the present invention, it is possible to produce the deformed cross-section material with a smaller number of rolling times compared to the number of rolling times when the conventional deformed strip is produced.

  In Claim 4, the rolling process which produces an irregular cross-section material can be constructed at a lower cost.

  According to the fifth aspect of the present invention, the rolling device that generates the irregular cross-section material can be configured in a compact manner.

  In Claim 6, the cost reduction of the rolling apparatus which produces | generates a deformed cross-section material can be achieved.

The front side schematic diagram which shows the rolling apparatus which concerns on one Embodiment of this invention. The side surface schematic diagram which shows the rolling apparatus which concerns on one Embodiment of this invention. A schematic diagram showing a rolling roller, (a) a schematic diagram showing a rolling roller according to a first embodiment, (b) a schematic diagram showing a rolling roller according to a second embodiment. The schematic diagram which shows the rolling condition of a rolling roller and a backup roller. The schematic diagram which shows the rolling condition (before rolling) by a rolling roller. The schematic diagram which shows the rolling condition (at the time of left rolling) with a rolling roller. The schematic diagram which shows the rolling condition (at the time of right rolling) by a rolling roller. The schematic diagram which shows the rolling condition (after rolling) by a rolling roller. Schematic diagram showing irregular cross-section material generated by rolling device, (a) schematic plan view, (b) AA cross-sectional view in FIG. 9 (a), (c) BB cross-sectional view in FIG. 9 (a) . The perspective schematic diagram which shows the irregular cross-section material produced | generated by the rolling apparatus. The schematic diagram which shows the conventional irregular stripe, (a) Plane schematic diagram, (b) CC sectional drawing in Fig.11 (a), (c) DD sectional drawing in Fig.11 (a). Schematic diagram showing another embodiment of a modified cross-section material generated by a rolling device, (a) a schematic plan view, (b) a cross-sectional view taken along line EE in FIG. 12 (a), (c) F in FIG. 12 (a) -F sectional drawing. The side surface schematic diagram which shows the arrangement | positioning condition of a rolling apparatus and a press apparatus.

Next, embodiments of the invention will be described.
First, the whole structure of the rolling apparatus which concerns on one Embodiment of this invention is demonstrated using FIGS. 1-3.
In the following description, an XYZ coordinate system as shown in FIGS. 1 and 2 is defined, and the positive direction of the X axis set in the horizontal direction is set to the front as the material feed direction, and is set in the horizontal direction. Further, the positive direction of the Y axis perpendicular to the X axis is set to the right with respect to the material feeding direction, the vertical direction is set, and the positive direction of the Z axis orthogonal to the X / Y axes is set upward.

As shown in FIG. 1 and FIG. 2, the rolling apparatus 1 according to an embodiment of the present invention processes a steel material 20 as a material for generating a “deformed cross-section material” by a rolling technique, thereby producing a deformed cross-section material 30. It is an apparatus for generating, and a skeleton is formed by the base portions 10 and 11 and the outer plate portions 12 and 13. In addition, in FIG. 1, illustration of the outer-plate part 12 is abbreviate | omitted and it has set it as the aspect which permeate | transmits the inside of the rolling mill 1 and illustrates.
The rolling device 1 includes a rolling roller 2, a backup roller 3, upper guide members (hereinafter referred to as upper guide members) 4 and 4, and lower guide members (hereinafter referred to as lower guide members) 5 and 5. , An upper mold 6, upper guide shafts (hereinafter referred to as upper guide shafts) 7 and 7, lower guide shafts (hereinafter referred to as lower guide shafts) 8 and 8, a base member 9, and the like.

The rolling roller 2 which is a rolling roller according to the first embodiment is a roller member for rolling the steel material 20 supplied between the upper die 6 as shown in FIG. 1 and FIG. The roller portion 2a, the shaft portion 2b disposed on the axis of the roller portion 2a, and the like.
Further, on the peripheral surface of the roller portion 2a, convex portions 2c and 2c for forming concave portions in the steel material 20 when the steel material 20 is rolled are formed.
As shown in FIG. 3A, the rolling roller 2 is formed with two convex portions 2c and 2c. And each convex part 2c * 2c is set as the structure which is spaced apart suitably in the circumferential direction and is symmetrically arranged in the axial direction view of the shaft part 2b, and is formed over the entire length of the roller part 2a in plan view.
1 and 2, the rolling roller 2 is rotatably supported by the upper guide members 4 and 4 with the shaft portions 2b and 2b held horizontally.

  The upper guide member 4 is a member for transmitting torque to the rolling roller 2, and the diameter of the shaft hole 4 a that is a hole for rotatably supporting the shaft portion 2 b of the rolling roller 2 and the diameter of the upper guide shaft 7. A guide groove 4b having a groove width substantially matching (but slightly larger) is formed.

The pair of upper guide members 4 and 4 are configured to be swingable about the upper guide shafts 7 and 7 by engaging the guide grooves 4b and 4b with the upper guide shafts 7 and 7, respectively. .
The shaft portions 2b and 2b of the rolling roller 2 are inserted into the shaft holes 4a and 4a of the pair of upper guide members 4 and 4, and torque is transmitted by a key / spline or the like.

In addition, since the upper guide shafts 7 and 7 protrude from the outer plate portions 12 and 13 in parallel with the feed direction of the steel material 20, the upper guide members 4 and 4 correspond to the feed direction of the steel material 20. And can be swung in a vertical plane.
The upper guide members 4 and 4 are swung in a plane perpendicular to the feeding direction of the steel material 20, whereby the rolling roller 2 is rolled in a direction perpendicular to the feeding direction of the steel material 20. The configuration is as follows.

As shown in FIGS. 1 and 2, the backup roller 3 is a roller member that rolls in cooperation with the rolling roller 2 and keeps the rolling direction of the rolling roller 2 horizontal, and is a substantially cylindrical roller. A portion 3a, a shaft portion 3b disposed on the axis of the roller portion 3a, and the like are provided.
The backup roller 3 is rotatably supported by the lower guide members 5 and 5 with the shaft portions 3b and 3b held horizontally.

  The lower guide member 5 is a member for supporting the backup roller 3, and is formed with a guide groove 5b having a groove width substantially equal to (but slightly larger than) the diameter of the lower guide shaft 8.

The pair of lower guide members 5 and 5 are configured to be swingable about the lower guide members 5 and 5 by engaging the guide grooves 5b and 5b with the lower guide shafts 8 and 8, respectively. Has been.
The shaft portions 3b and 3b of the backup roller 3 are inserted into the shaft holes 5a and 5a of the pair of lower guide members 5 and 5, and torque is transmitted by a key / spline or the like.

Further, since the lower guide shafts 8 and 8 protrude from the outer plate portions 12 and 13 in parallel with the feed direction of the steel material 20, the lower guide members 5 and 5 are fed in the feed direction of the steel material 20. Is configured to be swingable within a plane perpendicular to the surface.
Then, when the lower guide members 5 and 5 are swung in a plane perpendicular to the feed direction of the steel material 20, the backup roller 3 rolls in a direction perpendicular to the feed direction of the steel material 20. It is assumed to be configured.

Further, a base member 9 is provided below the backup roller 3.
The base member 9 is a member for horizontally holding the rolling direction of the backup roller 3 and is stably fixed on the base portion 11 and is a flat surface horizontally held on the upper surface portion. A support surface 9a is formed. The base member 9 and the base portion 11 have sufficient strength and rigidity that can withstand the loads of the rolling roller 2 and the backup roller 3.

  In the backup roller 3, the engagement position between the guide groove 5b and the lower guide shaft 8 is changed as needed as the lower guide members 5 and 5 swing (that is, the lower guide shaft 8 and the shaft portion 3b are in contact with each other). The roller portions 3a of the backup roller 3 roll along the support surface 9a while the distance changes as needed, so that the displacement of the shaft portions 3b and 3b of the backup roller 3 is always maintained in the horizontal direction.

  And the displacement of the axial part 2b of the rolling roller 2 is always hold | maintained at a horizontal direction by making the rolling roller 2 contact | abut with the uppermost part of the roller part 3a of the backup roller 3 in the lowest part of the roller part 2a. It is configured.

With such a configuration, as shown in FIG. 1, by applying an external force to the upper guide members 4, 4 and swinging about the upper guide shafts 7, 7, the rolling roller 2 is moved to the steel material 20. Can be pressed.
On the other hand, the backup roller 3 rolls (self-rotates) around the shaft portions 3b and 3b by the frictional force generated between the roller portion 3a and the roller portion 2a at the same time as the rolling roller 2 rolls. The guide members 5 and 5 swing.

  In the present embodiment, the rolling operation of the backup roller 3 is synchronized by utilizing the frictional force generated between the roller portion 3a and the roller portion 2a. For example, the upper guide member 4 and the lower side are synchronized with each other. It is good also as a structure which arrange | positions the gear for synchronizing rolling operation between the guide members 5, and synchronizes operation | movement of the upper side guide member 4 and the lower side guide member 5. FIG.

Next, the rolling operation of the rolling apparatus according to an embodiment of the present invention will be described with reference to FIGS.
In the present embodiment, the rolling roller 2 is first arranged in an initial state in which the convex portions 2c and 2c are arranged symmetrically in the X-axis direction view as shown in FIGS.

From such an initial state, the rolling roller 2 is supported at its lowermost portion by the backup roller 3 as shown in FIGS. 4 and 6, while the upper guide members 4 and 4 (see FIG. 1) are moved to the left in FIG. The shaft portion 2b rolls so as to be displaced in the negative direction of the Y axis (left side in the horizontal direction).
At this time, the left end part in the width direction of the steel material 20 is pressed by the convex part 2c, and is mainly rolled so as to expand toward the negative direction of the Y axis.
In the following, a rolling mode in which the left end portion in the width direction of the steel material 20 is expanded toward the negative direction of the Y axis is referred to as “left rolling”.

Next, after the rolling roller 2 is rolled so that the shaft portion 2b is displaced to a predetermined position in the negative direction (left side in the horizontal direction) of the Y axis (that is, after "left rolling" is finished), the upper side 4 and 7, the shaft member 2b rolls so as to be displaced in the positive direction of the Y axis (the right side in the horizontal direction).
At this time, the right end part in the width direction of the steel material 20 is pressed by the convex part 2c, and is mainly rolled so as to expand toward the positive direction of the Y axis.
Hereinafter, a rolling mode in which the right end portion in the width direction of the steel material 20 is expanded toward the positive direction of the Y axis is referred to as “right rolling”.

  Then, after the rolling roller 2 is rolled so that the shaft portion 2b is displaced to a predetermined position in the positive direction of the Y axis (right side in the horizontal direction) (that is, after the “right rolling” is finished), the upper guide As shown in FIGS. 4 and 8, the members 4 and 4 are swung to the left in FIG. 4 so that the convex portions 2c and 2c are in an initial state in which they are arranged symmetrically in the X-axis direction view. Then, the shaft 2b rolls so as to be displaced in the negative direction (left side in the horizontal direction) of the Y axis.

In this way, a series of rolling operations is completed.
In this series of rolling operations, the material feeding of the steel material 20 is stopped, and the material feeding is intermittently performed during the time between the series of rolling operations and the next series of rolling operations.
That is, the steel material 20 is stopped during a series of rolling operations, and the material is fed by a predetermined feed pitch P when the rolling operation is completed.

Next, the “deformed cross-section material” generated by the rolling apparatus according to an embodiment of the present invention will be described with reference to FIGS. 3 and 9 to 11.
9 (a) and 10 as an example of the “deformed cross-section material”, the deformed cross-section material 30 shown in FIG. 9 (b) is obtained by replacing the steel material 20 having a substantially rectangular cross-sectional shape with a predetermined feed pitch P. 9 is a member produced by rolling the steel material 20 in a direction perpendicular to the length direction by the rolling device 1 having the rolling roller 2 as shown in FIG. It has a cross-sectional shape having a convex portion 30a as shown in FIG.

Further, the irregular cross-section member 30 is formed by the rolling roller 2 in which the convex portions 2c and 2c are arranged at symmetrical positions in a plan view as shown in FIG. In both end portions in the length direction of the portion to be rolled in (boundary portion of the portion to be rolled in each rolling step), a strain region 30b that is a portion where strain is concentrated is formed.
And the distortion area | region 30b formed in the irregular cross-section material 30 is formed in the position left-right symmetric toward the length direction of this irregular cross-section material 30. As shown in FIG.
Further, since the constricted portions 30c and 30c are formed at the boundary between the strain regions 30b and 30b, the cross-sectional shape of the odd-shaped cross-section member 30 in the length direction is not constant.

  On the other hand, a deformed strip 50 shown in FIG. 11 (a), which is an example of the “deformed strip”, is obtained by rolling the steel material 20 having a substantially rectangular cross-sectional shape as shown in FIG. 11 (b) by a predetermined rolling device. It is a member to be generated, and has a cross-sectional shape having a convex portion 50a as shown in FIG.

  Further, since the deformed strip 50 is not formed with a strain region which is a portion where strain is concentrated in the middle portion, and further, a constricted portion or the like is not formed, each cross section in the length direction of the deformed strip 50 The shape is constant.

  That is, the deformed strip 50 has no distortion and is generated so as to have a constant cross-sectional shape in the length direction. On the other hand, the deformed cross-section member 30 is distorted and has a length. The difference is that each cross-sectional shape in the direction is generated while allowing it to be not constant.

And in the rolling apparatus 1 for producing the irregular cross-section material 30, the reduction amount Δt as shown in FIG. 10 is obtained by allowing distortion and allowing each cross-sectional shape in the length direction to be not constant. It can be made larger than a conventional rolling device.
The reduction amount Δt is a value obtained as a difference between the original sheet thickness t0 and the sheet thickness t1 after rolling (that is, Δt = t0−t1).

In the conventional rolling apparatus, when the deformed strip 50 is generated, rolling is performed in multiple stages while the reduction amount Δt is set small so as not to cause distortion or constriction.
On the other hand, when the deformed cross-section material 30 is generated in the rolling device 1, since the generation of distortion and constriction is allowed, the reduction amount Δt can be set larger than the conventional amount.
That is, in the rolling method according to an embodiment of the present invention, the rolling amount Δt is positively set to the amount generated by the strain region 30b and the constricted portion 30c, thereby reducing the number of rolling steps, reducing the rolling process, and shortening the time. For example, like the rolling device 1, the number of rolling stages can be reduced to one.

Further, in the deformed cross-section material 30 generated using the rolling roller 2, the strain region 30 b and the constricted portion 30 c are formed by increasing the reduction amount Δt, but the strain region 30 b and the constricted portion 30 c are formed in the deformed cross-sectional material 30. The surplus portion 30d set in (1) is aggregated.
In other words, in the modified cross-section material 30, for example, a planing shape (for example, a shape punched out by pressing or the like) can be a shape α as shown in FIG. That is, since the strain region 30b and the constricted portion 30c) are scrapped, the quality of the product can be maintained even if the strain region 30b and the constricted portion 30c are formed.

Moreover, the aspect of the “deformed cross-section material” generated by the rolling device 1 can be, for example, an aspect such as a deformed cross-section material 40 shown in FIG.
12 (a), which is another example of the “deformed cross section material”, is a steel material 20 having a substantially rectangular cross section as shown in FIG. 3 (b) is a member produced by rolling the steel material 20 in a direction perpendicular to the length direction by a rolling device 21 having a rolling roller 22 as shown in FIG. 3 (b). It has a cross-sectional shape having a convex portion 40a as shown in c).

The deformed cross-section material 40 is formed by the rolling roller 22 as shown in FIG. 3B in which the convex portions 22c and 22c are arranged at asymmetric positions in plan view. The strain region 40b to be formed is formed at a position that is asymmetrical in the length direction of the deformed cross-section member 40.
Further, in the deformed cross-section material 40 generated using the rolling roller 22, the strain region 40 b and the constricted portion 40 c are formed by increasing the reduction amount Δt, but the strain region 40 b and the constricted portion 40 c are formed in the deformed cross-section material 40. The surplus portion 40d set in (1) is aggregated.

  In this way, the arrangement of the convex portions 22c and 22c on the rolling roller 22 is adjusted, the arrangement of the strain regions 40b, 40b,..., The arrangement of the constricted portions 40c, 40c, and the surplus portions 40d and 40d. By adjusting the setting position, etc., for example, the plate cutting shape can be changed to a shape β as shown in FIG. 12 (a), and various product shapes can be handled. Become.

That is, in the rolling method according to an embodiment of the present invention, the rolling roller 2 is rolled in a direction (Y-axis direction) orthogonal to the feeding direction (X-axis direction) of the steel material 20, and the steel material 20 is moved by the rolling roller 2. Rolls that are rolled by a series of rolling operations of the rolling roller 2 are concentrated at both ends in the feed direction of the steel material 20 (ie, the strain region 30b and the constricted portion). 30c).
With such a configuration, the irregular cross-section material 30 (or the irregular cross-section material 40) can be generated by rolling. Moreover, the space of the rolling process (that is, the installation place of the rolling device 1) can be made compact.

Moreover, in the rolling method which concerns on one Embodiment of this invention, each distortion | strain area | region 30b * 40b is concentrated on each surplus part 30d * 40d set to the both ends in the feed direction of each irregular cross-section material 30 * 40. is there.
With such a configuration, it is possible to ensure the quality of products manufactured using each of the irregular cross-section materials 30 and 40.

Furthermore, in the rolling method according to an embodiment of the present invention, the amount of rolling reduction Δt of the steel material 20 by the rolling rollers 2 and 22 is set to an amount generated by the strain regions 30b and 40b and the constricted portions 30c and 40c. is there.
With such a configuration, it is possible to generate each of the odd-shaped cross-section members 30 and 40 with a smaller number of rolling times compared to the number of rolling times when the conventional deformed strip 50 is generated.

Next, an apparatus configuration in the case where a press apparatus is disposed in a subsequent process of the rolling apparatus according to an embodiment of the present invention will be described with reference to FIGS. 10 and 13.
As shown in FIG. 10, the deformed cross-section material 30 generated by the rolling device 1 is rolled by a single rolling operation by the rolling roller 2 (see FIG. 1). Corresponds to the parts consumed by the movement.

  That is, since the amount of the deformed cross-section material 30 generated by the rolling device 1 and the amount of the deformed cross-section material 30 consumed by the press device 15 correspond to each other, each operation of the rolling device 1 and the press device 15 is performed as one. It is preferable to drive while synchronizing with the drive source because effects such as cost reduction by reducing the drive source and downsizing of the apparatus are expected.

  Therefore, as shown in FIG. 13, the rolling apparatus 1 according to one embodiment of the present invention has a configuration in which a press device 15 is disposed in the subsequent process, and the rolling device 1 and the press device 15 are connected by a link mechanism 16. Yes.

The press device 15 includes an upper die 17 and a lower die punch 18, and the punch 18 is supported by a driving device 19.
The drive device 19 includes a cylinder portion 19a that can be expanded and contracted in the vertical direction in FIG. 13, and the punch 18 is displaced in the vertical direction by the cylinder portion 19a.
The deformed cross-section material 30 is supplied between the die 17 and the punch 18, and the deformed cross-section material 30 is sandwiched between the die 17 and the punch 18 to generate a press-processed product.

  The upper guide member 4 of the rolling device 1 and the cylinder portion 19a are connected via a link mechanism 16, and the upper guide member generates a vertical driving force generated by the drive device 19 (cylinder portion 19a) by the link mechanism 16. The power is transmitted while converting the driving force to a direction in which the 4 is swung.

  In addition, in this embodiment, it is set as the structure which takes out the motive power for driving the rolling apparatus 1 with the link mechanism 16 from the cylinder part 19a with which the press apparatus 15 is reciprocated, However, It is not limited to this, For example, When the power source provided in the pressing device is a device that rotates (rotating device such as a motor), the power for driving the rolling device may be taken out from the rotating device via a cam mechanism or the like. Is possible.

That is, in the rolling method according to an embodiment of the present invention, a pressing step is arranged after the rolling step of rolling the steel material 20 with the rolling roller 2, and the steel material 20 is intermittently fed at a predetermined feed pitch P in the rolling step. The timing at which the steel material 20 is intermittently fed is synchronized with the timing of the press forming in the pressing step.
With such a configuration, it is possible to construct a rolling process for generating the modified cross-section material 30 at a lower cost.

Moreover, the rolling apparatus 1 which concerns on one Embodiment of this invention is equipped with the rolling roller 2 which rolls in the direction (Y-axis direction) orthogonal to the feed direction (X-axis direction) of the steel materials 20, and steel material by the rolling roller 2 The steel material 20 is rolled in a direction orthogonal to the feed direction of 20 to generate a deformed cross-section material 30, and a press device 15 for press molding is disposed on the downstream side of the rolling roller 2 with respect to the feed direction of the steel material 20, The timing of rolling of the rolling roller 2 and the timing of press molding by the press device 15 are synchronized.
With such a configuration, the rolling device 1 that generates the modified cross-section material 30 can be configured in a compact manner.

In the rolling device 1 according to an embodiment of the present invention, the rolling roller 2 is connected to the press device 15 via the link mechanism 16 and is driven by the cylinder portion 19a in the drive device 19 of the press device 15. is there.
With such a configuration, it is possible to reduce the cost of the rolling device 1 that generates the irregular cross-section material 30.

DESCRIPTION OF SYMBOLS 1 Rolling apparatus 2 Rolling roller 2a Roller part 2b Shaft part 2c Convex part 3 Backup roller 15 Press apparatus 16 Link mechanism 20 Steel material 30 Deformation cross-section material 30b Distortion area 30c Constriction part 30d Surplus part 40 Deformation cross section

Claims (6)

A rolling method in which a rolling roller is rolled in a direction orthogonal to the feed direction of the material, and the material is rolled by the rolling roller,
At the both ends in the feed direction of the material of the part rolled by a series of rolling operations of the rolling roller,
Aggregating distortion caused by rolling,
A rolling method characterized by that. The distortion is
Aggregate to the surplus portion to be set at both ends,
The rolling method according to claim 1, wherein: The amount of reduction of the material by the rolling roller,
Set to the amount of distortion,
The rolling method according to claim 1 or 2, characterized in that. After the rolling process of rolling the material with the rolling roller, a pressing process is arranged,
While supplying the material intermittently at a predetermined feed pitch to the rolling process,
The timing to send the material intermittently,
Synchronize with the timing of press molding in the press process,
The rolling method as described in any one of Claims 1-3 characterized by the above-mentioned. Comprising a rolling roller that rolls in a direction perpendicular to the feed direction of the material,
While rolling the material in a direction orthogonal to the feed direction of the material by the rolling roller to generate a deformed cross-section material,
On the downstream side of the rolling roller with respect to the feed direction of the material, a press device for press molding is disposed,
Timing of rolling of the rolling roller;
Synchronize the timing of press molding by the press device,
A rolling device characterized by that. The rolling roller is
Connected to the press device via a link mechanism,
Driven by a drive source of the press device,
The rolling apparatus according to claim 5.

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