JP2004082155A - Roll forming device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a roll forming device for easily forming both a lip channel and a light-gage channel. <P>SOLUTION: The roll forming device 11 rolls a steel plate into a lip channel or a light-gage channel. The roll forming device 11 has an adjustment part 17 to press both sides of the steel plate to position the steel plate in the width direction. The roll forming device 11 further has a first forming part 18 to form a lip part in the lip channel. The roll forming device 11 still further has a second forming part 19 to form a channel part in the lip channel and the light-gage channel. The adjustment part 17, the first forming part 18, and the second forming part 19 are continuously provided on the roll forming device 11. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a roll forming apparatus for forming a work such as a galvanized steel sheet into a lip channel steel or a light channel steel.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, as this type of roll forming apparatus, there has been known an apparatus in which a plurality of forming rolls are provided, a work is conveyed by these forming rolls, and roll forming is performed on a steel plate or the like.
[0003]
On the other hand, in recent years, steel houses have begun to spread rapidly due to various advantages such as livability, strength, durability, and low cost. This steel house is composed of structural members such as a wall panel, a roof truss, and a floor panel, and is constructed by a frame wall method. Structural members constituting a steel house are formed by connecting a plurality of lightweight shaped steel members (hereinafter simply referred to as shaped steel members) formed by bending a long plate-shaped steel plate with connecting members such as drill screws and hardware. I have.
[0004]
A lip channel steel and a light channel steel are mainly used for a steel house, and these steels are properly used depending on the use location of a structural member. These sections are generally manufactured by a dedicated roll forming apparatus.
[0005]
[Problems to be solved by the invention]
However, in the above-mentioned conventional roll forming apparatus, there is a problem that a dedicated roll forming apparatus is required for forming the lip channel steel and the light channel steel.
[0006]
The present invention has been made by paying attention to the problems existing in the above conventional technology. An object of the present invention is to provide a roll forming apparatus capable of easily forming both a lip channel steel and a light channel steel.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the roll forming apparatus according to the first aspect of the present invention is a roll forming apparatus for forming a long plate-shaped work into a lip channel steel or a light channel steel,
Positioning means for pressing both sides of the work to determine the position in the width direction of the work,
A plurality of lip forming rolls are provided, and lip forming means for forming the lip of the lip channel steel stepwise by the lip forming roll,
A plurality of groove forming rolls are provided, and groove forming means for stepwise forming the grooves of the lip channel steel and the light channel steel by the groove forming roll,
The positioning means, the lip forming means, and the groove forming means are provided continuously.
[0008]
According to a second aspect of the present invention, there is provided a roll forming apparatus according to the first aspect, wherein the lip forming roll is provided so as to be movable in a width direction of the work.
[0009]
According to a third aspect of the present invention, there is provided a roll forming apparatus according to the first aspect, wherein the positioning means includes a plurality of guides for guiding both sides of the work, and the guide and the lip forming roll. And a groove forming roll is provided movably in the width direction of the work.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. As shown in FIG. 1 and FIG. 2, the roll forming apparatus 11 of the present embodiment converts a long plate-shaped steel plate 12 as a work into a lip channel steel 13 having a horizontal C-shaped cross section shown in FIG. This is a device for forming into a light channel steel 14 having a horizontal U-shaped cross section shown in FIG. 6 (b). The lip channel steel 13 is formed by bending a pair of lip portions 15 having an L-shaped cross section and a groove portion 16 having a U-shaped cross section. The light channel steel 14 is formed by bending a groove 16 having a U-shaped cross section.
[0011]
The roll forming apparatus 11 is provided with an adjustment part 17 as a positioning means for pressing both sides of the steel plate 12 and positioning the steel plate 12 in the width direction. Further, the roll forming apparatus 11 is provided with a first forming part 18 as a lip forming means for forming the lip 15 in the lip channel steel 13. Further, the roll forming device 11 is provided with a second forming part 19 as a groove forming means for forming the groove 16 in the lip channel steel 13 and the light channel steel 14. The roll forming apparatus 11 is provided with the adjusting part 17, the first forming part 18, and the second forming part 19 continuously.
[0012]
Hereinafter, the left side in FIG. 1 is the front side, the right side is the rear side, and the length direction of the roll forming apparatus 11 and the steel plate 12 shown in FIG.
The roll forming apparatus 11 can form a shaped steel from the steel plate 12 by NC control by a control unit (not shown) as a control unit. The molded steel shape is arranged in a shape such as a square frame, and a connecting member such as a drill screw is screwed, so that it is possible to form a structural member such as a wall panel, a roof truss, and a floor panel. is there. The formed structural members can be assembled by a frame wall method to construct a house such as a steel house. The thickness of the steel plate 12 for forming such a house shaped steel is mainly 0.8 to 1.6 mm. The length of the steel plate 12 is not particularly limited, but is mainly 800 mm to 10 m. The size of the lip channel steel 13 shown in FIG. 6 (a) is not particularly limited, but is mainly in the range of a groove width A of 40 to 50 mm, a height B of 89 to 300 mm, and a lip width C of 12 to 20 mm. I have. The size of the light channel steel 14 shown in FIG. 6B mainly has a groove width A of 40 to 50 mm and a height B of 89 to 300 mm.
[0013]
The control unit includes a microprocessor (CPU), a read only memory (ROM), a random access memory (RAM), and the like. The NC program is stored in the ROM in advance, and the type of the shaped steel, the width of the steel plate 12, and the dimensions of the lip groove steel 13 shown in FIG. 6 (groove width A, height B, and lip width C) are stored in the RAM. Alternatively, information such as dimensions (groove width A and height B) of the light channel steel 14 is stored in advance. Then, the roll forming device 11 is controlled based on these pieces of information, and the steel plate 12 is bent into a predetermined shape. Further, such information can be inputted from an operation panel (not shown) and stored in the RAM.
[0014]
As shown in FIGS. 1 and 2, the roll forming apparatus 11 is provided with a rectangular base 20, and the rear end of the base 20 is an adjustment part 17. A plurality of transport rolls 21 extend in the Y-axis direction on the adjustment part 17, and the steel sheet 12 is placed on these transport rolls 21 and is carried into the roll forming device 11. 18. A column-shaped side roll 22 is provided between these transport rolls 21 so as to face each other in the Y-axis direction. As shown in FIG. 3, these side rolls 22 are configured such that a cylindrical guide roller 22b as a guide is rotatably supported at the tip of a support post 22a. Both sides of the steel plate 12 are pressed by these guide rollers 22b, and positioning is performed in the width direction of the steel plate 12.
[0015]
Here, as shown in FIGS. 6 (a) and 6 (b), the cross sections of the formed lip channel steel 13 and light channel steel 14 are line-symmetric with the vertical line passing through the center of the groove width A as the axis of symmetry. It has become. Therefore, the lip channel steel 13 and the light channel steel 14 can be formed with high dimensional accuracy by positioning the steel plate 12 in the width direction before forming the lip 15 and the groove 16.
[0016]
These side rolls 22 are provided so as to be movable in the Y-axis direction by moving means such as a motor and a ball screw shaft (not shown). Then, the interval in the Y-axis direction of the guide roller 22b is set according to the width of the steel plate 12 to be formed.
[0017]
As shown in FIGS. 1 and 2, an upper pinch roller 23 and a lower pinch roller 24 are vertically arranged in front of the adjustment part 17 so as to extend in the Y-axis direction. Is pressed by a hydraulic cylinder such as a hydraulic cylinder. The upper pinch roller 23 and the lower pinch roller 24 are rotatably provided, and the lower pinch roller 24 is rotatably driven by a motor, a gear, and the like (not shown). The upper pinch roller 23 is rotated by the rotation of the lower pinch roller 24, and the steel sheet 12 is conveyed from the adjustment part 17 to the first forming part 18 while being sandwiched between the pinch rollers 23, 24. ing.
[0018]
On the rear side of the base 20, a first molding part 18 is provided continuously to the adjustment part 17. The first forming part 18 is provided with a pair of rectangular first movable tables 25 facing each other in the Y-axis direction. These first moving tables 25 can be moved in the Y-axis direction by moving means such as a ball screw shaft 26 and a motor (not shown). An upper first rotating shaft 27 and a lower first rotating shaft 28 are provided inside the first moving table 25 as a pair of upper and lower portions. The pair of upper and lower first rotary shafts 27 and 28 are provided to face each other in the Y-axis direction, and the pair of upper and lower first rotary shafts 27 and 28 that are opposed to each other are arranged in one stage, and a total of eight stages are arranged in the X-axis direction. ing. These first rotating shafts 27 and 28 can be driven to rotate by driving means such as a motor, a chain, and a gear (not shown).
[0019]
At the tips of the upper first rotating shaft 27 and the lower first rotating shaft 28, a cylindrical upper first forming roll 29 and a lower first forming roll 30 as lip forming rolls are provided, respectively. The rolls 29 and 30 are driven to rotate by the first rotation shafts 27 and 28, respectively. As shown in FIG. 4A, the upper and lower surfaces of the steel plate 12 are sandwiched between the outer peripheral surface of the upper first forming roll 29 and the outer peripheral surface on the tip side of the lower first forming roll 30. The first molding part 18 is conveyed forward by the rotation of 29 and 30. In addition, the base end side of the lower first forming roll 30 is enlarged in diameter from the front end side, and a first inclined surface 31 is formed on the outer peripheral surface on the base end side. The first inclined surface 31 rises stepwise from the lower first forming roll 30 on the rear stage side, and the angle formed between the first inclined surface 31 of the lowermost first forming roll 30 on the foremost stage and the outer peripheral surface on the front end side is substantially a right angle. Has become. When the steel sheet 12 is conveyed toward the front of the first forming part 18 by the first forming rolls 29 and 30, the steel sheet 12 is stepwise bent by the first inclined surface 31. In this way, the lip portion 15 is formed on the steel sheet 12 that has passed through the first forming part 18 as shown in FIG. 4B.
[0020]
As shown in FIGS. 1 and 2, a second molding part 19 is provided on the front side of the base 20 so as to be continuous with the first molding part 18. The second molding part 19 is provided with a pair of rectangular-shaped second movable tables 32 facing each other in the Y-axis direction. These second moving tables 32 can be moved in the Y-axis direction by moving means such as a ball screw shaft 26 and a motor (not shown). An upper second rotating shaft 33 and a lower second rotating shaft 34 are provided in a pair inside the second moving table 32 and extend vertically. The pair of upper and lower second rotation shafts 33 and 34 are provided to face each other in the Y-axis direction, and the pair of upper and lower second rotation shafts 33 and 34 that are opposed to each other are arranged in one step and are arranged side by side in the X-axis direction for a total of 10 steps. . These lower second rotating shafts 34 are rotatable by driving means such as a motor, a chain, and a gear (not shown).
[0021]
At the tips of the upper second rotating shaft 33 and the lower second rotating shaft 34, a cylindrical upper second forming roll 35 and a lower second forming roll 36 as a groove forming roll are provided, respectively, and a lower second forming roll 36. Are driven to rotate by a second rotation shaft. As shown in FIG. 5, the upper and lower surfaces of the steel plate 12 are sandwiched between the outer peripheral surface of the upper second forming roll 35 and the outer peripheral surface on the tip side of the lower second forming roll 36, and the steel plate 12 is rotated by the rotation of the lower second forming roll 36. The second molding part 19 is transported forward. The base end side of the lower second forming roll 36 has a larger diameter than the front end side, and a second inclined surface 37 is formed on the outer peripheral surface on the base end side. The second inclined surface 37 rises stepwise from the lower second forming roll 36 on the subsequent stage, and the angle between the second inclined surface 37 of the lowermost second forming roll 36 on the foremost stage and the outer peripheral surface on the front end side is substantially a right angle. Has become. Then, when the steel sheet 12 is conveyed toward the front of the second forming part 19 by the second forming rolls 35 and 36, the steel sheet 12 is stepwise bent by the second inclined surface 37. As shown in FIGS. 6A and 6B, a groove 16 is formed in the steel sheet 12 having passed through the second forming part 19.
[0022]
Here, as shown in FIG. 5, the upper second rotating shaft 33 extends from the opposite side of the lower second rotating shaft 34. The upper second rotating shaft 33 does not contact the steel plate 12 when the steel plate 12 is sandwiched between the upper second forming roll 35 and the lower second forming roll 36, and the groove 16 is bent by the second inclined surface 37. It has become.
[0023]
Now, in order to form the lip channel steel 13, information on the lip channel steel 13 to be formed is stored in the RAM, and the roll forming apparatus 11 is controlled by the control unit. Then, the side roll 22, the first movable table 25, and the second movable table 32 are moved to predetermined positions, and the positions of the guide roller 22b, the first forming rolls 29, 30 and the second forming rolls 35, 36 are set. Is done. Next, the steel plate 12 is carried into the adjustment part 17 from the previous process. At this time, the adjustment part 17 is provided with a guide roller 22b. Both sides of the steel plate 12 are pressed by these guide rollers 22b, and positioning of the steel plate 12 in the width direction can be performed.
[0024]
The positioned steel plate 12 is carried into the first forming part 18 by the upper pinch roller 23 and the lower pinch roller 24. Subsequently, the steel plate 12 is conveyed by the upper first forming roll 29 and the lower first forming roll 30, and the steel plate 12 is bent in a stepwise manner by these first forming rolls 29 and 30. Then, the lip portion 15 is formed on the steel plate 12 that has passed through the first forming part 18.
[0025]
Next, the steel sheet 12 on which the lip portion 15 is formed is continuously carried into the second forming part 19. In the second forming part 19, the steel sheet 12 is conveyed by the upper second forming roll 35 and the lower second forming roll 36, and the steel sheet 12 is stepwise bent by the second forming rolls 35 and 36. You. Then, the groove 16 is formed in the steel plate 12 that has passed through the second forming part 19. Thus, the lip channel steel 13 is formed from the steel plate 12 by the adjustment part 17, the first forming part 18, and the second forming part 19.
[0026]
In order to form the light channel steel 14, information on the light channel steel 14 to be formed is first stored in the RAM, and the roll forming apparatus 11 is controlled by the control unit. Then, the side roll 22, the first movable table 25, and the second movable table 32 are moved to predetermined positions, and the positions of the guide roller 22b, the first forming rolls 29, 30 and the second forming rolls 35, 36 are set. Is done. Here, each of the first forming rolls 29 and 30 is moved to a position where the steel sheet 12 is sandwiched between the outer peripheral surface of the upper first forming roll 29 and the distal outer peripheral surface of the lower first forming roll 30. That is, the first forming rolls 29 and 30 are moved to the position where the first inclined surface 31 abuts on both side surfaces of the steel plate 12, so that the steel plate 12 passes through the first forming part 18 when the steel plate 12 passes through the first forming part 18. No bending is performed.
[0027]
Next, the steel sheet 12 that has been carried into the adjustment part 17 from the previous process and has passed through the adjustment part 17 further passes through the first forming part 18 and is carried into the second forming part 19. Subsequently, the steel plate 12 is transported by the upper second forming roll 35 and the lower second forming roll 36, and the groove 16 is formed in the steel plate 12 having passed through the second forming part 19. In this manner, the light channel steel 14 is formed from the steel plate 12 by the adjustment part 17 and the second forming part 19. At this time, the upper first forming roll 29 and the lower first forming roll 30 are provided movably in the Y-axis direction. Then, the light channel steel 14 can be formed by moving each of the first forming rolls 29 and 30. Therefore, at the time of switching from the lip channel 13 to the light channel 14, or from the light channel 14 to the lip channel 13, the first forming rolls 29 and 30 do not have to be attached and detached. Shaped steels 13 and 14 can be easily formed.
[0028]
In order to form lip channel steel 13 or light channel steel 14 of different sizes, first, information on the size to be formed (groove width A, height B and lip width C or groove width A and height B) is stored in RAM. Remember. Then, the roll forming apparatus 11 is controlled by the control unit, and the side rolls 22, the first moving table 25, and the second moving table 32 are moved to predetermined positions in the Y-axis direction. At this time, the side rolls 22, the first forming rolls 29, 30 and the second forming rolls 35, 36 are provided so as to be movable in the Y-axis direction. Therefore, there is no need to exchange the first forming rolls 29 and 30 and the second forming rolls 35 and 36, or to separately provide a forming device dedicated to each size, and to use a single roll forming device 11 for different sizes. The lip channel 13 and the light channel 14 can be formed.
[0029]
The effects exerted by the present embodiment will be described below.
-In the roll forming apparatus 11 of this embodiment, the adjusting part 17, the first forming part 18, and the second forming part 19 are continuously provided. With this configuration, the lip channel 13 can be formed by the adjusting part 17, the first forming part 18 and the second forming part 19, and the light channel 14 can be formed by the adjusting part 17 and the second forming part. 19 can be formed. Therefore, both the lip channel steel 13 and the light channel steel 14 can be easily formed without changing the forming rolls or requiring a dedicated forming device for each of the steel bars. In addition, in the roll forming apparatus 11 of this embodiment, since the adjustment part 17 and the second forming part 19 which are necessary for forming both the lip channel steel 13 and the light channel steel 14 can be shared, There is no waste in equipment and equipment investment can be suppressed.
[0030]
In the roll forming device 11 of this embodiment, the upper first forming roll 29 and the lower first forming roll 30 are provided so as to be movable in the width direction of the steel plate 12. With this configuration, it is not necessary to remove each of the first forming rolls 29 and 30 when forming the light channel steel 14, and when forming the lip channel steel 13, each of the first forming rolls 29 is again required. , 30 need not be installed. Therefore, both the lip channel steel 13 and the light channel steel 14 can be easily formed.
[0031]
In the roll forming apparatus 11 of this embodiment, the guide roller 22b, the upper first forming roll 29, the lower first forming roll 30, the upper second forming roll 35, and the lower second forming roll 36 are arranged in the width direction of the steel plate 12. It is provided movably. With such a configuration, lip channel steels 13 and light channel steels 14 of different sizes can be easily formed.
[0032]
In the roll forming apparatus 11 of this embodiment, a guide roller 22b is rotatably provided on the support 22a. The guide roller 22b is rotated when positioning the steel plate 12 in the width direction. Therefore, the frictional resistance between the steel plate 12 and the guide roller 22b is reduced, and the positioning of the steel plate 12 in the width direction can be performed smoothly.
[0033]
The above-described embodiment can be embodied with the following modifications.
In the above embodiment, the guide roller 22b, the first forming rolls 29 and 30, and the second forming rolls 35 and 36 are provided so as to face each other in the Y-axis direction, but may be arranged in a staggered manner. .
[0034]
In the above embodiment, the guide roller 22b is provided as a guide, but a guide rail that sandwiches both sides of the steel plate 12 may be provided.
In the roll forming apparatus 11 of the above embodiment, the positioning means, the lip forming means and the groove forming means are provided in the order of the positioning means, the lip forming means and the groove forming means. However, the positioning means, the groove forming means and the lip forming means may be provided in this order.
[0035]
In the embodiment, the first forming rolls 29 and 30 are provided in a total of eight stages, and the second forming rolls 35 and 36 are provided in a total of ten stages. However, the first forming rolls 29 and 30 may have nine or more stages or seven or less stages in consideration of the molding state and the like. Each of the second forming rolls 35 and 36 may have 11 or more stages, or may have 8 or less stages. Further, a groove may be formed at a bent portion of the steel plate 12 by a former stage of each of the first forming rolls 29, 30 and each of the second forming rolls 35, 36. With this configuration, the steel plate 12 can be easily bent.
[0036]
-In the said embodiment, the 1st moving stand 25 and the 2nd moving stand 32 are provided so that movement by moving means, such as a ball screw shaft 26, is possible. In addition, a moving means using a rack, a pinion, or the like may be used.
[0037]
Next, technical ideas that can be grasped from the above embodiment will be described below.
(1) The groove forming roll includes an upper groove forming roll and a lower groove forming roll. The upper groove forming roll is rotatably supported by an upper rotation shaft, and the lower groove forming roll is rotatable by a lower rotation shaft. The work is pivotally supported, and the work is bent by an inclined surface formed in the lower groove forming roll while being sandwiched by the upper groove forming roll and the lower groove forming roll, and the upper rotating shaft is opposed from the opposite side of the lower rotating shaft. The upper rotating shaft is provided so as not to contact the work when the work is bent by being extended so that the work is bent. The method according to any one of claims 1 to 3, wherein The roll forming apparatus as described in the above. With this configuration, the groove can be easily formed.
[0038]
(2) The guide according to any one of claims 1 to 3 and (1), wherein the guide is rotatably provided, and the guide guides both sides of the work while rotating. Roll forming equipment. With such a configuration, it is possible to smoothly perform the alignment of the work in the width direction.
[0039]
(3) The lip forming means and the groove forming means are provided in the order of the lip forming means and the groove forming means, and the groove is formed after the lip is formed on the work. The roll forming apparatus according to any one of (1) and (2). In the case of such a configuration, as compared with the case where the groove forming means and the lip forming means are provided in this order, the forming roll can be easily arranged and the lip and the groove can be easily processed.
[0040]
(4) A roll forming method in the roll forming apparatus according to any one of (1) to (3) and (1) to (3), wherein the work is formed into a light channel steel. Is formed by the positioning means and the groove forming means, and when the work is formed into a lip groove steel, the work is formed by the positioning means, the lip forming means, and the groove forming means. Roll forming method. With this configuration, both the lip channel steel and the light channel steel can be easily formed.
[0041]
【The invention's effect】
The present invention is configured as described above, and has the following effects.
According to the roll forming apparatus of the first aspect, both the lip channel steel and the light channel steel can be easily formed.
[0042]
According to the roll forming device of the second aspect, in addition to the effects of the first aspect, both the lip channel steel and the light channel steel can be formed more easily. According to the roll forming apparatus of the third aspect, in addition to the effects of the invention of the first aspect, lip channel steels and light channel steels of different sizes can be easily formed.
[Brief description of the drawings]
FIG. 1 is a side view showing a roll forming apparatus according to an embodiment.
FIG. 2 is a plan view showing a roll forming apparatus.
FIG. 3 is a sectional view showing a state where a steel plate is positioned.
4A is a schematic view showing a state in which a lip is formed, and FIG. 4B is a cross-sectional view showing a steel sheet in which the lip is formed.
FIG. 5 is a schematic view showing a state in which a groove is being formed.
6A is a cross-sectional view showing a lip channel steel, and FIG. 6B is a cross-sectional view showing a light channel steel.
[Explanation of symbols]
11: roll forming device, 12: steel plate as work, 13: lip channel steel, 14: light channel steel, 15: lip portion, 16: groove portion, 17: adjustment part as positioning means, 18: lip portion forming A first forming part as a means, 19 a second forming part as a groove forming means, 22b a guide roller as a guide, 29 an upper first forming roll as a lip forming roll, 30 a lip forming roll Lower first forming rolls, 35... Upper second forming rolls as groove forming rolls, 36... Lower second forming rolls as groove forming rolls.

Claims (3)

A roll forming apparatus for roll forming a long plate-shaped work into a lip channel steel or a light channel steel,
Positioning means for pressing both sides of the work to determine the position in the width direction of the work,
A plurality of lip forming rolls are provided, and lip forming means for forming the lip of the lip channel steel stepwise by the lip forming roll,
A plurality of groove forming rolls are provided, and groove forming means for stepwise forming the grooves of the lip channel steel and the light channel steel by the groove forming roll,
A roll forming apparatus, wherein the positioning means, the lip forming means, and the groove forming means are provided continuously. The roll forming apparatus according to claim 1, wherein the lip forming roll is provided so as to be movable in a width direction of the work. The positioning means is provided with a plurality of guides for guiding both sides of the work, and the guide, the lip forming roll and the groove forming roll are provided movably in the width direction of the work. The roll forming apparatus according to claim 1.

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