JP4297554B2 - Guide recombination mechanism for shape steel rolling mill - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a guide recombination mechanism of a shape steel rolling mill, and more specifically, for example, a guide that is attached to the front and rear of a shape rolling mill such as H-section steel and keeps good guidance and guidance of a material to be rolled. The present invention relates to a rearrangement device.
[0002]
[Prior art]
Conventionally, in a shape rolling mill in which a universal mill and an edging mill are installed close to each other, as an example of a guide changing mechanism of a shape rolling mill that can be changed without removing the roll guide device when changing the roll, Some are disclosed in Japanese Utility Model Publication No. 53-6262.
The guide rearrangement mechanism of this shape rolling mill is composed of an intermediate guide and an entrance / exit guide, and these guides are movable on a single base, the intermediate guide is perpendicular to the line, and the entrance / exit guide is movable in the line traveling direction. By having the configuration, the rolls can be changed by evacuating these guides without removing them when changing the rolls.
[0003]
[Problems to be solved by the invention]
However, the guide rearrangement mechanism of the conventional shape rolling mill has the following problems.
(1) Since the base on which the intermediate guide and the entrance / exit guide slide is located directly below the line, the scale is peeled off from the material to be rolled and falls onto the base, which is caught in the sliding portion and cannot move. There was a fear.
(2) Since the intermediate guide and the entrance / exit guide slide on one base, there is a possibility that one of the frequently moving guides wears and a step is generated in the base, and the other guide is caught by the step and cannot move. It was.
(3) When rolling another product such as H-shaped steel, steel sheet pile, etc., it is necessary to change the interval between the housings. However, since this guide recombination mechanism is an integral type, another set has to be prepared. Considering the spare parts, a total of 4 units are required, resulting in increased costs.
(4) Since it is an integrated type, if any of the guides was damaged, the set of guides had to be removed.
(5) There was a case where it was desired to change the height of any of the guides, but this was impossible because of the integral type.
The present invention has been made in view of such circumstances, and provides a guide recombination mechanism of a shape rolling mill that can avoid a complicated structure, and can guide and guide a material to be rolled and quickly remove a guide device from the rolling mill. Objective.
[0004]
[Means for Solving the Problems]
The guide rearrangement mechanism of the shape rolling mill according to the present invention that meets the above object is a guide rearrangement mechanism arranged in the shape rolling mill,
(A) a shift rail provided along the pass line above the pass line of the rolling mill housing;
(B) The upper slide guide shaft, the upper slide slide, the lower slide guide shaft, and the lower slide guide shaft, which are attached to the guide box and positions above and below the pass line of the guide box in a state orthogonal to the pass line. A guide device that is slidably mounted at a symmetrical position about the pass line of the guide shaft and that has a guide surface that contacts the outer surface of the material to be rolled and has a pair of upper and lower funds, respectively. When,
(C) the guide device is detachable from the side of the rolling mill housing, and has a fixing member that fits into the guide box of the guide device from the side,
(D) In addition, the shift rail is provided with an actuator for moving the guide device installed on the shift rail back and forth along the pass line, and the guide device is lifted from the end of the shift rail by the lifting means. It is provided so as to be detachable,
(E) The guide device is fixed and released at the installation position on the shift rail by the fixing member , and the lifting means is provided at an upper portion of the rolling mill housing and provided at an upper portion of the guide device. obtained by engaging the hook Ru Oh in rotation and telescopic swinging arm.
[0005]
With the configuration described above, when the rolls are changed, the fixing member such as the cotter is removed to release the connection with the rolling mill housing, and the guide device is automatically retracted by the actuator provided on the shift rail. To do. Further, when performing maintenance of the guide device, it can be removed from the end of the shift rail by lifting means such as a crane or a swing arm and transported to a repair yard or the like. When the guide device moves on the shift rail, the shift rail is provided above the pass line, and the fixing member is configured to attach and detach the guide device from the side. It is less affected. Further, the guide device corresponds to a conventional exit guide or entrance guide, and can be attached independently. Therefore, when only one guide device is damaged, only the damaged one can be removed and replaced.
[0006]
When the length of the shift rail is limited by attaching an intermediate guide, the end of the shift rail is brought into contact with the existing equipment by hooking and rotating the guide device on the swing arm. It can be mounted on.
Further, the swing arm is supported by a telescopic pivot provided on the upper part of the rolling mill housing, and the pivot is caused to expand and contract by following the interval of the rolling mill housing, thereby allowing a plurality of types of shape steels to be formed. It is preferable to enable rolling. Since the pivot that supports the swing arm can be expanded and contracted, the position of the swing arm does not shift even if the distance between the rolling mill housings is changed, so that the changeover can be easily performed.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Subsequently, embodiments of the present invention will be described with reference to the accompanying drawings to provide an understanding of the present invention.
[0008]
As shown in FIG. 1, a guide rearrangement mechanism 10 for a shape rolling mill according to an embodiment of the present invention is installed on shift rails 12 to 15 provided on a rolling mill housing 11 and shift rails 12 and 13. The outlet guide device 16 as an example of the guide device, the inlet guide device 17 as an example of the guide device installed on the shift rails 14 and 15, the outlet guide device 16 and the inlet guide device 17 are respectively fixed from the side. And a fixing member (not shown). This will be described in detail below.
[0009]
As shown in FIG. 2, the shift rails 12 and 13 on which the exit guide device 16 is installed are provided in parallel to the pass line P on both the left and right sides above the pass line P. Hydraulic cylinders 18 and 19, which are examples of actuators, are provided outside the shift rails 12 and 13. The hydraulic cylinders 18 and 19 are provided on both sides of the upper portion of the guide box 20 of the outlet guide device 16. The latching notch recesses 21 and 22 are provided with advance and retreat bracket projections 23 and 24 into which they are inserted from above. The guide box 20 can be moved forward or backward along the pass line P by operating the hydraulic cylinders 18 and 19 after fitting the latching cutout recesses 21 and 22 into the forward and backward bracket convex portions 23 and 24.
Upper and lower slide guide shafts 25 and 26 are attached to positions above and below the pass line P of the guide box 20 in a state orthogonal to the pass line P.
[0010]
The upper and lower slides 31 and 32 are paired with the guide surfaces 27 to 30 in contact with the outer surface of the material to be rolled at the symmetrical positions with respect to the pass line P of the upper and lower slide guide shafts 25 and 26, respectively. , And the lower fund 33, 34 are slidably mounted. Also, there are provided groove-shaped latching portions 35 to 38 at the front portions of the upper fund 31 and 32 and the lower fund 33 and 34, respectively. The guide box 20, the upper and lower slide guide shafts 25 and 26, the upper fund 31 and 32, and the lower fund 33 and 34 constitute a guide device (exit guide device 16 and inlet guide device 17). An adjusting device (not shown) provided in the rolling mill housing 11 is fitted into the latching portions 35 to 38, and opens and closes the upper fund 31 and 32 and the lower fund 33 and 34 in the horizontal direction according to the shape of the material to be rolled. Is possible.
A hooking member 40 having a plurality of hooks 39 provided in a comb shape is attached to the upper portion of the guide box 20. The hook 39 is hooked by overhead cranes 45 and 46, which are examples of lifting means, lifted and moved, whereby the outlet guide device 16 can be attached and detached from the ends of the shift rails 12 and 13.
[0011]
Fixed notches 41 and 42 are respectively provided on the left and right front sides of the guide box 20. The rolling mill housing 11 is provided with a hydraulic cylinder (not shown) and a cotter which is an example of a fixing member integrated with a tip portion thereof. Since the cotter provided in the rolling mill housing 11 is fitted into the fixed notches 41 and 42 of the guide box 20 from both sides, the outlet guide device 16 can be easily attached to and detached from the rolling mill housing 11.
As shown in FIG. 1, a horizontal roll 43 is provided vertically at the center of the rolling mill housing 11, and a heel roll 44 is provided at the side thereof. In addition, overhead cranes 45 and 46 are used to transfer the outlet guide device 16 and the inlet guide device 17 to the shift rails 12 to 15. Since the structure of the inlet guide device 17 is the same as that of the outlet guide device 16, the description thereof is omitted.
[0012]
Next, a procedure for using the guide recombination mechanism 10 will be described.
As shown in FIG. 1, the center position of the circular groove of the hook 39 of the outlet guide device 16 is represented by Q1 to Q5.
When attaching the outlet guide device 16 to the rolling mill housing 11, first, the overhead crane 45 is engaged with the hook 39 of the outlet guide device 16, and the outlet guide device 16 is suspended from the repair yard and lowered from Q1 to Q2. . The height of Q2 at this time is such that the height of the lower ends of the latching notches 21 and 22 of the guide box 20 of the outlet guide device 16 is higher than the heights of the upper and lower bracket convex portions 23 and 24 of the shift rails 12 and 13. Also keep it high. Next, the outlet guide device 16 is moved horizontally from the position Q2 to the position Q3, and then lowered from the position Q3 to the position Q4, and the outlet guide device 16 is placed on the shift rails 12 and 13. At this time, it is confirmed that the latching notch recesses 21 and 22 are fitted in the advance / retreat bracket projections 23 and 24. After confirmation, the overhead crane 45 is removed from the hook 39. FIG. 1 shows a state when the overhead crane 45 is removed from the hook 39. Then, the hydraulic cylinders 18 and 19 provided on the shift rails 12 and 13 are operated to move the outlet guide device 16 to the position Q5 (installation position). After the movement, the fixed notches 41 and 42 are fixed with a cotter, and the adjusting device is fitted into the hooks 35 to 38 of the upper funds 31 and 32 and the lower funds 33 and 34 and fixed. The hydraulic cylinders 18 and 19 have a built-in linear sensor, and the outlet guide device 16 can be moved to an accurate position.
[0013]
When the horizontal roll 43 and the heel roll 44 are rearranged, the hydraulic cylinders 18 and 19 are operated after releasing the fixation of the outlet guide device 16, and moved from the position Q5 to the position Q4. After completion of the roll reassignment work, the exit guide device 16 is fixed by moving again from the position of Q4 to the position of Q5. Thus, since the exit guide device 16 can be automatically advanced and retracted along the shift rails 12 and 13, it is not necessary to remove the outlet guide device 16 and the roll reassigning operation can be performed quickly.
When the outlet guide device 16 is removed for repair or the like, first, the outlet guide device 16 is unlocked and then the hydraulic cylinders 18 and 19 are operated to move from the position Q5 to the position Q4. Then, the overhead crane 45 can be engaged with the hook 39 and moved by the overhead crane 45 in the order of Q3, Q2, and Q1 to the repair yard.
In addition, about the inlet guide apparatus 17, since the other procedure is the same except that the direction of movement with the outlet guide apparatus 16 becomes reverse, description is abbreviate | omitted.
[0014]
Next, a guide recombination mechanism 10a according to a modification of the embodiment will be described.
As shown in FIG. 3, an intermediate guide 47 that is movable in a direction perpendicular to the pass line R is provided between adjacent rolling mills, and the shift rails 48 and 49 are arranged in the above-described manner to prevent contact with the intermediate guide 47. The length is shorter than the shift rails 12 to 15 according to the embodiment. Further, the outlet guide device 50 and the inlet guide device 51 remove the hooking member 40 of the outlet guide device 16 and the inlet guide device 17 according to the above embodiment, and instead of the hooks 52a, 52b, 53a as shown in FIG. , 53b are provided in a comb shape, and the engaging members 54 and 55 having a height higher than that of the engaging member 40 are provided, and the configuration of other parts is the same as that of the outlet guide device 16 and the inlet guide device 17. Is omitted. In addition, separators 57 to 60 that extend and contract in the direction orthogonal to the pass line R of the rolling mill housing 56 are provided, the width of the rolling mill housing 56 in the direction orthogonal to the pass line R is variable, and the width of the horizontal roll 56a is changed. It can be adapted to.
[0015]
In FIG. 3, at the upper part of the rolling mill housing 56, pivot shaft fixing parts 63 and 64 for supporting the pivot shafts 61 and 62, and swing cylinders 80 and 81 with the pivot shafts 61 and 62 as fulcrums can be rotated and expanded and contracted. The swing arms 69 and 70 which are an example of the raising / lowering means which has the rotation arms 67 and 68 provided with the raising / lowering cylinders 65 and 66 which are these are provided. The tip portions 71 and 72 of the swing arms 67 and 68 of the swing arms 69 and 70 are bent in an L shape and hooks 52b and 53b provided on the upper portions of the outlet guide device 50 and the inlet guide device 51, respectively. The swing arms 69 and 70 can be rotated and extended while the outlet guide device 50 and the inlet guide device 51 are hooked. In addition, overhead cranes 73 and 74 are installed on the ceiling, hooks 52a are hooked, and the exit guide device 50 and the entrance guide device 51 conveyed from the repair yard can be passed to the swing arms 69 and 70.
[0016]
In order to prevent contact between the intermediate guide 47 and the shift rail 48, the length of the shift rail 48 is limited, and the separator 57 is provided above the shift rail 48, so that the outlet guide device 50 is placed on the shift rail 48. Can not do it. Therefore, the exit guide device 50 is temporarily deposited in the swing arm 69, and the swing arm 69 is rotated by the swing cylinder 80, whereby the exit guide device 50 is moved in an arc shape and placed on the shift rail 48. .
Hereinafter, a method of using the guide recombination mechanism 10a will be described with reference to FIG.
The center positions of the circular grooves of the hooks 52a and 52b of the outlet guide device 50 are represented by S1 to S5, and the midpoints (hereinafter referred to as tip positions) of the upper and lower fundings are represented by T1 to T5. .
When the outlet guide device 50 is attached to the rolling mill housing 56, first, the intermediate guide 47 is retracted in a direction orthogonal to the pass line R. Then, the overhead crane 73 is engaged with the hook 52a of the exit guide device 50, the exit guide device 50 is suspended from the repair yard, and is lowered from the position S1 to S2.
[0017]
The position of S2 is the same as the position of the outlet guide device 50 shown in FIG. The swing arm 69 waits with its tip aligned with the position of S2, and the exit guide device 50 is delivered from the overhead crane 73 to the swing arm 69 at the position of S2. After confirming that the hook 52 b of the exit guide device 50 is securely hooked to the swing arm 69, the overhead crane 73 is removed from the exit guide device 50. FIG. 3 shows a state when the overhead crane 73 is removed from the hook 52a.
After removing the overhead crane 73, the swing arm 69 is rotated by the swing cylinder 80 about the pivot 61 to move the outlet guide device 50 from S2 to S3. At this time, the tip position of the outlet guide device 50 moves from T2 to T3, but the swing arm 69 has a smaller movement position error than the overhead crane 73, and therefore does not come into contact with the horizontal roll 56a.
[0018]
When the swing arm 69 is rotated to the position S3, the outlet guide device 50 is located above the end of the shift rail 48, and the swing arm 67 of the swing arm 69 is directed vertically downward. When the elevating cylinder 65 is extended at this position, the outlet guide device 50 is lowered from S3 to S4 and placed on the shift rail 48. At this time, after the latching notch recesses 21 and 22 of the outlet guide device 50 are fitted in the advance and retreat bracket projections 23 and 24 of the hydraulic cylinders 18 and 19 provided on the shift rail, the lifting cylinder 65 is further extended to rotate. The moving arm 67 is rotated and removed from the hook 52b. After removing the swing arm 69 from the hook 52b, the hydraulic cylinders 18 and 19 provided on the shift rail 48 are operated to move the outlet guide device 50 from the position S4 to the position S5. After the movement to the position of S5, the respective parts are fixed in the same procedure as in the above-described embodiment, and the intermediate guide 47 is returned to the installation position and fixed to complete the rearrangement. Since the shift hydraulic cylinders 18 and 19, the lift cylinder 65, and the swing cylinder 80 are all equipped with sensors, when the outlet guide device 50 is moved between S2 and S5, it can be automatically reconfigured.
[0019]
In this way, even when the outlet guide device 50 is installed in a narrow place, the swing arm 69 can be used for quick installation without making contact with existing equipment.
In addition, when removing the exit guide apparatus 50, since it can remove in the procedure substantially reverse to the said procedure, description is abbreviate | omitted.
The procedure for attaching and detaching the inlet guide device 51 is the same as that of the outlet guide device 50 except that the moving direction is reversed.
[0020]
Next, the case where the space | interval of the rolling mill housing 56 is changed with reference to FIG. 6, FIG. 7 is demonstrated.
In the rolling mill in which the distance between the rolling mill housings 56 can be changed, the swing arms 69 and 70 are supported by the telescopic pivots 61a and 62a provided on the upper part of the rolling mill housing 56, and the pivots 61a and 62b are supported by the rolling mill housing. By expanding and contracting following the interval of 56, it is possible to roll a plurality of types of section steel, for example, H-section steel 76 and steel sheet pile 77.
As shown in FIG. 6, when the interval of the rolling mill housing 56 is narrowed by the hydraulic cylinder 75, the outlet guide device 16 (and the inlet guide device 17) described in the above embodiment is used to form an H shape. The steel 76 can be rolled.
When the steel sheet pile 77 is rolled by changing the rolls, the interval is widened by the hydraulic cylinder 75, and the outlet guide device 16 (and the inlet guide device 17) is shaped into the shape steel guide device by the procedure described in the above embodiment. Replace with 78.
As described above, the separators 57 to 60 are arranged as support devices when the interval of the rolling mill housing 56 is changed by the hydraulic cylinder 75. However, the inlet guide device 17, the outlet guide device 16, and the shape steel guide device 78 are provided. Since the pivots 61a and 62a for rotating through the swing arms 69 and 70 are also configured to expand and contract, the time required for changing the setup can be shortened.
[0021]
【The invention's effect】
In the guide rearrangement mechanism of the shape rolling mill according to claims 1 and 2 , the shift rail is provided above the pass line, and the fixing member attaches and detaches the guide device from the side. It is possible to protect the movable part by reducing the influence of scale and scale.
Furthermore, since the shift rail is provided with an actuator, the roll can be reassembled without removing the guide device by retracting the guide device to the end of the shift rail during roll reassembly work. Position adjustment during use of the apparatus can be performed quickly.
And since the guide device can be moved to the end of the shift rail and the guide device can be moved up and down with a crane or the like, it can be attached and detached with a simple structure, without affecting the rolling mill body and other guide devices. Maintenance can be performed.
In addition , a swing arm that can be rotated and expanded is provided on the upper part of the rolling mill housing, so that when the length of the shift rail is limited, the end of the shift rail is not brought into contact with the existing equipment. It can be placed on the part.
And in the guide rearrangement mechanism of the shape steel rolling mill according to claim 2, the pivot provided on the upper part of the rolling mill housing and supporting the swing arm can be extended and contracted. Since the guide device can be attached by using a plurality of types of shape steels, the guide device can be quickly attached and detached regardless of the type of shape steel.
[Brief description of the drawings]
FIG. 1 is a side sectional view of a guide recombination mechanism of a shape steel rolling mill according to an embodiment of the present invention.
FIG. 2 is a perspective view of an outlet guide device of the guide reassembly mechanism.
FIG. 3 is a side sectional view of a guide rearrangement mechanism of a shape rolling mill according to a modification of the embodiment of the present invention.
FIG. 4 is a perspective view of a guide device of the guide reassembly mechanism.
FIG. 5 is an explanatory diagram of a method for using the guide rearrangement mechanism.
FIG. 6 is a front view of the case where the distance between the rolling mill housings of the guide rearrangement mechanism is narrow.
FIG. 7 is a front view showing a case where the distance between the rolling mill housings of the guide recombination mechanism is wide.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10: Guide rearrangement mechanism, 10a: Guide rearrangement mechanism, 11: Rolling mill housing, 12-15: Shift rail, 16: Outlet guide apparatus (guide apparatus), 17: Inlet guide apparatus (guide apparatus), 18, 19: Hydraulic pressure Cylinder (actuator), 20: guide box, 21, 22: latching notch recess, 23, 24: advance / retreat bracket projection, 25: upper slide guide shaft, 26: lower slide guide shaft, 27-30: guide surface, 31, 32: Upper fund, 33, 34: Lower fund, 35-38: Hook, 39: Hook, 40: Hook member, 41, 42: Fixed notch, 43: Horizontal roll, 44: Saddle roll, 45, 46: overhead crane, 47: intermediate guide, 48, 49: shift rail, 50: outlet guide device, 51: inlet guide device, 52a, 52b, 53a, 5 b: hook, 54, 55: engagement member, 56: rolling mill housing, 56a: horizontal roll, 57-60: separator, 61, 61a, 62, 62a: pivot, 63, 64: pivot fixing part, 65, 66: Elevating cylinder, 67, 68: Rotating arm, 69, 70: Swing arm (elevating means), 71, 72: Tip, 73, 74: Overhead crane, 75: Hydraulic cylinder, 76: H-section steel, 77: Steel sheet pile, 78: Shape steel guide device, 80, 81: Swing cylinder

Claims (2)

A guide recombination mechanism disposed in the shape steel rolling mill,
(A) a shift rail provided along the pass line above the pass line of the rolling mill housing;
(B) The upper slide guide shaft, the upper slide slide, the lower slide guide shaft, and the lower slide guide shaft, which are attached to the guide box and positions above and below the pass line of the guide box in a state orthogonal to the pass line. A guide device that is slidably mounted at a symmetrical position about the pass line of the guide shaft and that has a guide surface that contacts the outer surface of the material to be rolled and has a pair of upper and lower funds, respectively. When,
(C) the guide device is detachable from the side of the rolling mill housing, and has a fixing member that fits into the guide box of the guide device from the side,
(D) In addition, the shift rail is provided with an actuator for moving the guide device installed on the shift rail back and forth along the pass line, and the guide device is lifted from the end of the shift rail by the lifting means. It is provided so as to be detachable,
(E) The guide device is fixed and released at the installation position on the shift rail by the fixing member , and the lifting means is provided at an upper portion of the rolling mill housing and provided at an upper portion of the guide device. hooked hook which is in rotation and telescopic nitrous Rukoto swing arm section steel rolling mill, wherein the guide recombinant mechanism. 2. The guide recombination mechanism for a shape rolling mill according to claim 1 , wherein the swing arm is supported by a telescopic pivot provided at an upper portion of the rolling mill housing, and the pivot is caused to follow the interval of the rolling mill housing. A guide recombination mechanism for a section rolling mill that enables rolling of multiple types of section steel by expanding and contracting.

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