JP2001129624A - Row steel alignment device for correcting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a row steel alignment device for aligning irregularly aligned angles A to specified initial pitches. SOLUTION: This device is furnished with a roller equipment to press, by hold-down rollers, a plurality of the angles A carried-in to a roller-conveyer apparatus 1 and brought to halt therein, a positioning devices to bring the angles A in direct contact with each other by a pusher plate in order to be ready for succeeding process, and a pitch adjustment apparatus equipped with a pitch adjustment frame 12 which suspends regulating conical rollers with a certain pitch while accommodating to the interval of calibers wherein the frame is made movable in vertical direction and made rotatable around a vertical axis. The bar steel alignment devices. After lowering the pitch adjustment frame 12 inclined against the feeding direction and engaging the regulating roller 11 into the angles A and then releasing the positioning devices, in the state of preparatory stage that the angles A are pressed upon a surface of carrier table by the hold-down roller equipment and the adjacent angles A are made direct contact with each other by the positioning devices, the alignment device can make adjustment of distances between the angles A by turning the pitch regulating frame 12 to a position perpendicular to the feeding direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for aligning a straight bar to a straightening machine for aligning a plurality of steel bars, such as a shaped steel bar and a bar steel bar, at regular intervals when introducing the same into a straightening machine.

[0002]

2. Description of the Related Art For example, in Japanese Patent Publication No. 3-77011, a comb-shaped body having the same pitch as the garbage of the straightening machine is arranged above the front and rear position of the straightening machine so as to be vertically movable and rotatable, and is carried in. After the plurality of bar steels have been stopped, the front and rear comb teeth are lowered in an oblique state, the comb teeth are inserted between the respective bar steels, and the comb teeth are rotated until they are perpendicular to the transport direction. It is disclosed that the interval between the steel bars is made to correspond to the pitch of the caliber by rotating.

[0003]

However, in the above-mentioned conventional structure, it is a condition that when the carrying of each bar is stopped, at least an interval for inserting the comb teeth is always formed. If the gap is extremely small, the comb teeth cannot be inserted, and there is a problem that alignment becomes difficult.

An object of the present invention is to solve the above-mentioned problems and to provide an apparatus for aligning a steel bar to a straightening machine capable of accurately aligning even steel bars brought into contact with each other.

[0005]

In order to achieve the above object, according to the present invention, a plurality of strips, which are carried into a predetermined position by a carrying means and stopped, are pressed from above by a pressing roller to a conveying surface. A pressing roller device for grounding, a positioning device for pressing the bar steel from the outside in the width direction by a positioning member to prepare a state in which the bar steel comes into contact with each other between the guide member, and a conical or frusto-conical regulating roller of a caliber A pitch adjustment device is provided that is capable of vertically moving a pitch adjustment frame that is suspended at a constant pitch in accordance with the interval, and that is rotatable about a vertical axis. The equipment is brought into the ready state where adjacent steel bars are brought into contact with each other, and the pitch adjustment frame in the direction inclined to the transport direction is lowered. Each regulating roller engaged between long products, after opening a positioning device, which is constituted so as to adjust the gap long products is rotated to the direction perpendicular to the conveying direction pitch regulatory frame.

According to the above configuration, the conical or frusto-conical regulating roller is engaged between the rods in a state in which the adjacent rods are in contact with each other, and the pitch adjusting frame is turned from the inclined posture to the alignment posture perpendicular to the carrying direction. To change the pitch perpendicular to the carrying direction of the regulating roller to a pitch corresponding to Kariba. This makes it possible to reliably align the strips carried in at irregular intervals or in a contact state, and to accurately introduce a plurality of strips into the caliber.

According to a second aspect of the present invention, there is provided a pressing roller device that presses a plurality of bar steels, which are carried into a predetermined position by a carrying means and is stopped, from above with a pressing roller and grounds the conveying surface, and a positioning member comprising: And a cylindrical regulating roller that can be fitted to the concave strip of the bar and a positioning device that presses the bar from the outside in the width direction to bring the bar into contact with the guide member. A pitch adjusting device provided with a pitch adjusting frame suspended at a pitch so as to be movable up and down and rotatable around a vertical axis. Are brought into contact with each other in a preparatory state, and the pitch adjustment frame in the direction inclined with respect to the transport direction is lowered, so that each of the regulating rollers is a concave strip The fitted, after opening a positioning device, which is constituted so as to adjust the gap long products is rotated to the direction perpendicular to the conveying direction pitch regulatory frame.

[0008] According to the above configuration, even when there is no space that can be engaged between the adjacent steel bars, the regulating rollers are engaged with the concave ridges formed in the steel bars, thereby aligning them at an appropriate introduction pitch. Can be.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Here, an embodiment of an apparatus for aligning a steel bar to a straightening machine according to the present invention will be described with reference to FIGS. FIG. 1 is an arrangement view showing a straightening device for a bar, and 1 is a roller conveyor device as a loading means in which drive rollers 1a are disposed at predetermined intervals, and a plurality of bar members, for example, a plurality (four in the figure) are provided in front. A straightening machine 2 having a straightening roller 2a formed with a caliber for straightening the angle material A at the same time is provided. The roller conveyor device 1 includes a pair of left and right side guides (guide members) 3R on a drive roller 1a.
3L and side rollers 4R and 4L, an upstream frame 7 provided with a pressing roller device 5 and a positioning device 6 is provided on the upstream side, and a pitch adjusting device 8 is provided on the downstream side thereof. A provided downstream frame 9 is provided. As shown in FIGS. 2 and 3, the pressing roller device 5 presses the plurality of angle materials A stopped at a predetermined position by the roller conveyor device 1 from above, and is configured to eliminate an error due to floating. In addition, the positioning device 6 presses the angle members A from the outside in the width direction to bring them into contact with each other and to arrange them in a ready state. As shown in FIGS. 4 to 6, the pitch adjusting device 8 includes a plurality of (four in the figure) regulating rollers 11 arranged at regular intervals in accordance with the intervals of the calipers, and moves up and down through the pitch adjusting frame 12. It is freely and rotatably provided around a vertical axis. Thereby, the pitch (interval) of the angle material A before being introduced into the straightening machine 2 can be adjusted and aligned according to the caliber.

Next, the details of the strip aligning apparatus will be described. The upstream frame 7 is formed in a gate shape by a pair of left and right columns 7a erected on both sides of the roller conveyor device 1 and a horizontal girder member 7b bridged between upper ends of the columns 7a, The cross beam 7b is composed of a pair of front and rear traversing beams 7c arranged at regular intervals. The pressing roller device 5 is provided with a pair of left and right brackets 21 on the back surface of the cross beam member 7b, and a pair of left and right swing arms 2 via a boss 23 on a rotating shaft 22 supported by these brackets 21.
4 is supported, and a pressing roller 25 is rotatably mounted between the distal ends of the swing arms 24. And
A holding lever 26 protrudes from one end of the boss 23, and an output rod of a holding driving device (air cylinder) 27 disposed above the cross beam 7 b is pin-connected to the tip of the holding lever 26. . As a result, the angle material A is brought into contact with the conveying surface of the roller conveyor device 1 to eliminate an error caused by floating. Note that the pressing roller 25 is held in a state in which a slight gap is provided with respect to the angle material A after the angle material A is brought into contact with the conveying surface, so that the positioning movement and the carry-in movement are smoothly performed. It is configured to prevent damage due to movement.

The positioning device 6 is a roller conveyor device 1
And a right side guide 3R attached to the horizontal beam member 7b, and a bar pusher 31 provided on the cross beam 7b. The bar pusher 31 is provided with the traversing rail 3 attached to the cross beam 7b.
A pusher plate (positioning member) 35 attached to a pusher arm 34 protruding downward from the traverse member 33 to press the angle member A against the side guide 3R; A pusher driving device (air cylinder) 36 disposed on the member 7b and a connecting plate 37 movably disposed between the traversing beams 7c to connect the output rod of the pusher driving device 36 and the traversing member 33. Have been.

Therefore, when the plurality of angle members A are stopped at the predetermined positions, the pressing driving device 27 of the pressing roller device 5 is driven, and the pressing roller 25 is pressed onto the angle member A via the swing arm 24. Thereby, each angle material A is landed on the transport surface of the roller conveyor device 1. At the same time, the pusher driving device 36 of the positioning device 6
Is driven, the traversing member 33 is moved to the right side guide 3R side, and the pusher plate 3 is pushed through the pusher arm 34.
5 can be in a preparation state in which the angle material A is extruded toward the side guide 3R and brought into contact with each other.

As shown in FIG. 4, the downstream frame 9 is
Posts 9a erected on both sides of the roller conveyor 1 respectively
And a cross beam 9b bridged between the upper ends of the columns 9a are formed in a gate shape.
The elevating frame 41 is supported so as to be able to ascend and descend within a predetermined range, and the pitch adjusting device 8 is disposed on the elevating frame 41.

That is, the left and right columns 9a are each provided with a plurality of lifting rollers 4 on a lifting rail 42 laid on the inner surface thereof.
An elevating body 41a which is guided to be able to ascend and descend through the arm 3 is arranged, and a horizontal beam 41b is stretched between these elevating bodies 41a to form an elevating frame 41. Numeral 40 denotes an elevating and lowering synchronizing device of an elevating body 41a in which a synchronizing pinion 40b meshing with a synchronizing rack 40a provided on each of the right and left columns 9a is connected to each other via an interlocking shaft 40c.
Then, lifting jacks (air cylinders) 44 provided below the both columns 41a are connected to the lifting bodies 41a, respectively, and the lifting frame 41 is driven up and down within a predetermined range. Further, a vertical turning shaft 46 is rotatably supported on the horizontal beam 41b via a turning bearing 45.
A pitch adjusting frame 12 is attached to a lower end of the frame 6. A plurality of (four in the figure) conical regulating rollers 11 are respectively suspended from the pitch adjusting frame 12 at a constant pitch in accordance with the interval between the calipers.

As shown in FIG. 5, the pitch adjusting frame 12 is provided with a pitch adjusting plate 49 between a pair of turning beams 47 having a turning shaft 46 fixed to the base end.
The roller unit 48 and the pitch adjusting plate 49 are fixed at a pitch corresponding to the caliber by an opening / closing arm 51 provided at the tip of the swivel beam 47 and a locking screw shaft 52 attached to the opening / closing arm 51. Have been. In the roller unit 48, a vertical rotation shaft 48b is rotatably supported in a support box 48a, and a regulating roller 11 selected according to the shape of the strip is attached to a tip end of the vertical rotation shaft 48b.

In the case of the equilateral angle member A (equilateral angle iron) shown in FIG. 6, a conical restricting roller 11 having a tip angle α = 90 ° is used as these restricting rollers 11, and an unequal angle material Ab (unequal side) is used. In the case of angle iron), as shown in FIG.
An acute-angle conical regulating roller 11b having a tip angle α <90 ° is used. In the case of channel material (channel steel) U,
As shown in FIG. 8, a cylindrical regulating roller 11u having a diameter that can be fitted into the groove-shaped portion Ua of the channel material U and whose tip is conically chamfered is used.

The horizontal beam 41b includes the pivot 4
A turning drive device (electric motor) 54 connected and linked via a reduction gear box 53 is disposed at 6, and can reciprocate the pitch adjustment frame 12 within a range of a predetermined angle θ. In the above configuration, the plurality of angle members A carried at unequal intervals or in contact with the roller conveyor device 1 are stopped at predetermined positions by a stopper device (not shown). Then, the pressing roller device 5 is actuated to press the angle material A from above by the pressing roller 25 to ground the conveyance surface, and the positioning device 6 is operated to move the pusher plate 35 from left to right, and the angle material A is moved to the side. It is pushed to the guide 3R side,
The adjacent angle members A are brought into contact with each other in a ready state. Next, the lifting jack device 44 of the pitch adjusting device 8
Is driven and the pitch adjustment frame 12 is tilted.
Is lowered, and the leading ends of the regulating rollers 11 are respectively engaged between the angle members A. Further, as shown in FIG. 6B, the turning drive device 54 is driven to rotate the pitch adjustment frame 12 from the inclined preparation posture a to the alignment posture b perpendicular to the carrying direction by θ ゜. Thereby, the interval perpendicular to the carrying direction of the regulating roller 11 is increased from L1 to L2, and the angle members A are aligned so that the pitch of the angle members A becomes the introduction pitch P corresponding to the caliber.

At this time, if the interval between the regulating rollers 11 is increased, a slight gap is formed between the regulating rollers 11 and the angle material A, but a certain allowable range is set for the introduction position into the caliber. There is no problem with introduction to Kariba. In order to more accurately position the angle material A, simultaneously with the rotation of the pitch adjustment frame 12, the regulating roller 11 is lowered by a predetermined distance δ as shown in FIG. Positioning can be performed more accurately between the angle member 12 and the angle member A without any gap. Of course, for the unequal angled material Ab, the introduction pitch P can be similarly adjusted as shown in FIG. In the case of a channel material, as shown in FIG. 8, the regulating rollers 11u are fitted into the concave ridges Ua, respectively, and are aligned at the introduction pitch P corresponding to the caliber.

According to the above-described embodiment, the pressing roller device 5 and the positioning device 6 bring the adjacent (equilateral or unequal-side) angle members A into a state of contact with each other. The control roller 11 is engaged with the control roller 11 in a shape of a circle or a truncated cone, and the pitch adjustment frame 12 is rotated from the inclined position to an alignment position perpendicular to the loading direction to set the pitch perpendicular to the loading direction of the regulating roller 11 to the introduction pitch corresponding to the caliber. Can be changed to P. Thereby, the plurality of angle members A which are carried in at irregular intervals or in contact with each other can be reliably aligned, and each of the plurality of angle members A can be accurately introduced into the caliber.

Further, even in the case of the channel material U or the H-shaped steel having no gap in the ready state, the plural rollers which are carried in at irregular intervals or in contact with each other by fitting the regulating roller 11u into the concave ridge Ua. The channel material U and the H-section steel of the book can be reliably aligned. 9 and 10 show another embodiment of the pitch adjusting device 8 in which the turning drive device is modified. That is, the base end of the pitch adjustment frame 12 is rotatably supported by the support member 61 hanging down from the horizontal beam 41b via the vertical pin 62. An arc-shaped rack member 64 is attached to the pitch adjustment frame 12 via an attachment member 63 within a range exceeding the rotation angle θ ゜ about the vertical pin 62.
1b includes a turning pinion 6 that meshes with the rack member 64.
5 are provided. The turning pinion 65 is attached to a drive shaft 68 that is driven to rotate by a turning drive device 66 provided on the horizontal beam 41b via a reduction gear box 67. Also in the above-described embodiment, the same operation and effect as the previous embodiment can be obtained.

FIGS. 11 and 12 show a pitch adjusting device 8.
3 shows another embodiment of the present invention. That is, an elevating body 73 is movably arranged on a column 71 erected on the side of the roller conveyor device 1 via an elevating rail 72, and the elevating body 73 is lowered by an elevating jack 74 vertically provided below the column 71. It is moved up and down. The base end of the pitch adjustment frame 12 is rotatably supported by a support bracket 75 of the elevating body 73 via a vertical pin 76, and is pin-connected between the elevating body 73 and the distal end of the pitch adjustment frame 12 to rotate. The drive device (air cylinder) 77 can rotate the pitch adjustment frame 12 between the preparation posture and the alignment posture by a rotation angle θ ゜.

According to the above embodiment, the same operation and effect as the previous embodiment can be obtained, and the space occupied by the cantilever is reduced by being supported by one support 71 in a cantilever manner. And the size can be reduced.

[0023]

As described above, according to the first aspect of the invention, the conical or frusto-conical regulating roller is engaged between the strips from the state where the adjacent strips are in contact with each other,
The pitch adjustment frame is rotated from the inclined posture to the alignment posture perpendicular to the carrying direction, and the pitch perpendicular to the carrying direction of the regulating roller is changed to a pitch corresponding to the caliber. This makes it possible to reliably align the strips carried in at irregular intervals or in a contact state, and to accurately introduce a plurality of strips into the caliber.

According to the second aspect of the present invention, even when there is no space that can be engaged between adjacent strips, the regulating roller can be engaged with the concave strip formed on the strip to properly introduce the strip. Can be aligned to pitch.

[Brief description of the drawings]

FIG. 1 is an overall layout view showing an embodiment of a steel bar straightening facility according to the present invention.

FIG. 2 is a front view showing a pressing roller device and a positioning device of the same steel alignment device.

FIG. 3 is a side sectional view showing the pressing roller device and the positioning device.

FIG. 4 is a front view showing a pitch adjusting device of the steel strip aligning device.

5 (a) to 5 (d) show a pitch adjusting frame of the pitch adjusting device, FIG. 5 (a) is a plan view thereof, FIG. 5 (b) is a sectional view taken along line BB of FIG. CC sectional view shown in FIG.
(D) is a DD sectional view shown in (a).

6 (a) to 6 (c) show a pitch adjustment state of the equilateral angle material by the pitch adjustment device, FIG. 6 (a) is a front view showing an alignment state, and FIG. 6 (b) is a plan view showing an operation of the pitch adjustment frame. And (c) is a front view showing a ready state.

FIGS. 7A and 7B show a pitch adjustment state of the unequal angle material by the pitch adjustment device, FIG. 7A is a front view showing an alignment state, and FIG. 7B is a front view showing a preparation state. .

8 (a) and (b) show a pitch adjustment state of the channel material by the pitch adjustment device, (a) is a front view showing an alignment state, and (b) is a front view showing a preparation state.

FIG. 9 is a front view showing another embodiment of the pitch adjusting device.

FIG. 10 is a plan sectional view showing the pitch adjusting device.

FIG. 11 is a front view showing still another embodiment of the pitch adjusting device.

FIG. 12 is a plan sectional view showing the pitch adjusting device.

[Explanation of symbols]

 A Angle material (equal side) Ab Angle material (unequal side) U Channel material 1 Roller conveyor device 2 Straightener 2a Straightening roller 3R Side guide 5 Pressing roller device 6 Positioning device 7 Upstream frame 8 Pitch adjusting device 9 Downstream frame 11, 11b, 11u Restriction roller 12 Pitch adjustment frame 25 Press roller 27 Press drive device 35 Pusher plate 36 Pusher drive device 44 Lifting jack 54 Rotation drive device

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor, Reshi Yamada 1-7-89 Minami Kohoku, Suminoe-ku, Osaka City, Osaka Inside Hitachi Zosen Corporation

Claims (4)

[Claims] 1. A pressing roller device for pressing a plurality of bar steels, which are carried into a predetermined position by a carrying-in means and stopped, from above by a pressing roller and grounding the conveying surface, and pressing the bar steel from the outside in the width direction by a positioning member. A positioning device for bringing the steel bars into contact with each other between the guide members, and a pitch adjusting frame in which a conical or frusto-conical regulating roller is suspended at a constant pitch in accordance with the interval of the caliber, and is vertically movable and vertically movable. And a pitch adjusting device rotatably provided around the center.The pressing roller device presses the bar on the conveying surface, and the positioning device brings the adjacent bar into contact with each other in a preparatory state. After lowering the pitch adjustment frame in the inclined direction to engage each regulating roller between the strips and opening the positioning device, Long products aligner to straightener characterized by being configured to Ji regulatory frame is rotated to the direction perpendicular to the conveying direction to adjust the spacing of the long products. 2. A pressing roller device for pressing a plurality of bar steels, which are carried into a predetermined position by a carrying-in means and stopped, from above by a pressing roller and grounding the conveying surface, and pressing the bar steels from outside in the width direction by a positioning member. And a pitch adjustment frame in which a cylindrical regulating roller that can be fitted to the concave strip of the bar is suspended at a constant pitch in accordance with the caliber interval. And a pitch adjusting device provided so as to be able to move up and down and to be rotatable about a vertical axis. A pressing roller device is used to press the steel bars on the conveying surface, and a positioning device is used to bring adjacent steel bars into contact with each other. State, and lower the pitch adjustment frame in the direction inclined with respect to the transport direction to fit each regulating roller into the concave strip of the steel bar. The after opening, long products aligning device to straightener characterized by being configured to adjust the spacing of long products is rotated to the direction perpendicular to the conveying direction pitch regulatory frame. 3. The apparatus according to claim 1, wherein the steel bar is an angle material, and is carried in such that a corner is a top by a conveying means. 4. The steel strip is a channel material, is conveyed in such a manner that the concave portion becomes an upper surface by a conveying means, and the regulating roller has a cylindrical shape in which a lower portion which can be fitted into the concave portion is chamfered in a conical shape. 3. The device for aligning a steel bar on a straightening machine according to claim 2, wherein: