JP2006015391A - Anvil for sizing press and method for adjusting mounting position of anvil - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an anvil for sizing presses which is simple in structure, the manufacturing cost of which is low and with which reliability is improved and to provide an adjusting method of the mounting position of the anvil for sizing presses by which the mounting and dismounting of the anvil to a slider and positioning/adjusting work are easy. <P>SOLUTION: After adjusting the front end face (a) of each side block part 2A by cutting work so that the contacting surface T of the anvil 2 with a slab comes to a desired position to the slider 3 by using the anvil 2 in which side block parts 2A are integrally formed on both side faces of the anvil 2, the mounting position of the anvil 2 to the slider 3 is positioned and adjusted by bringing respective front end faces (a) into contact with holding members 12 provided on both sides of the slider 3 and interposing liners 9A, 9B in the clearance between the back face of the anvil 2 and the anvil receiving surface 10 of the slider 3 which is opposed to the back face. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a structure of an anvil used for a sizing press and a method for adjusting an attachment position of the anvil with respect to a slider of the sizing press.

  Conventionally, in a hot-rolled coil manufacturing process, a sizing press is installed in a slab conveyance line in order to adjust the width of a high-temperature slab sent out from a continuous casting process to a predetermined dimension.

The sizing press has a pair of anvils (molds) that repeatedly move toward and away from the left and right sides with respect to the slab transport direction, passing the slab between these anvils, A structure in which both side surfaces are pressed with respective anvils to adjust the width of the slab to a predetermined size has become the mainstream. (For example, refer to Patent Document 1.)
JP 2001-252704 A

  FIG. 3 is a diagram showing a schematic structure of a main part of such a sizing press using an anvil. As shown in FIG. 3, the sizing press 1 is in the middle of a slab conveying line in a hot rolling process. It is provided with a pair of anvils 2 'and 2' which are manufactured by a continuous casting facility (not shown) and which are formed by pressing both side surfaces F of the high-temperature slab S conveyed through the line to a desired width. .

  These anvils 2 ′ and 2 ′ are moved toward each other in the direction B perpendicular to the transport direction A of the slab S in accordance with the transport timing of the slab S by a drive mechanism (not shown) provided in the sizing press 1. It is attached to each of the pair of sliders 3 and 3 that repeat the separation operation.

  The slab S is sandwiched between a pair of upper and lower entrance pinch rolls 4 arranged on the entry side to the sizing press 1, and a pair of the sizing press 1 is intermittently provided by the entry side pinch rolls 4 by a predetermined length. Sent between the anvils 2 'and 2'.

  When the conveyance of the slab S is stopped, these anvils 2 'and 2' are pressed against both side surfaces F of the slab S from both sides to reduce the width W1 of the slab S to a desired width W2. . The slab S that has passed through the sizing press 1 is sent out by being sandwiched between a pair of upper and lower outlet pinch rolls 5 disposed on the outlet side of the sizing press 1.

  In the sizing press having the structure described above, in order to adjust the width of the slab to a desired width, the anvil repeatedly plastically deforms the side surface of the high-temperature slab with a large pressure. Since the surface of the anvil contacting the slab is repeatedly exposed to high temperature and high pressure, it will be fatigued and worn out after a while.

  Therefore, the anvil is removed from the slider of the sizing press periodically or when these wears occur, the contact surface with the slab is cut and refinished, and then used again. Yes.

  At this time, if the anvil slab contact surface is refinished to the depth at which wear has occurred, the slab will be removed from the original position when the anvil was new when it was attached to the slider by that amount. Therefore, it is necessary to correct the mounting position of the anvil with respect to the slider so that it moves forward to the slab side by the amount of machining.

  Therefore, in this type of sizing press, conventionally, as shown in FIG. 4A, in order to adjust the position of the anvil with respect to the slider 3, side blocks 6 and 6 are respectively provided on both side surfaces of the anvil 2 ′. It was fastened and fixed by a plurality of bolts 7.

  Here, FIG. 4A shows a state in which the anvil 2 ′ is new, and the back surface 8 of the anvil 2 ′ is held by the anvil receiving surface 10 of the slider 3 via the fixed liner 9A having a certain thickness. In addition, the front end surfaces of the left and right side blocks 6 and 6 are held in contact with the holding members 12 and 12 attached to the protruding portions 11 and 11 on both sides of the front surface of the slider 3, and the protruding portions 11 and 11 of the slider 3 are held. On the other hand, the anvil 2 ′ is positioned and fixed at a fixed position of the slider 3 by fastening the holding members 12, 12 with bolts 13, 13.

  When the contact surface T with the slab of the anvil 2 ′ is worn out after using the sizing press for a while, the contact surface T is refinished, and the refinished anvil 2 ′ is shown in FIG. As shown in B), an adjustment liner 9B corresponding to the thickness of the finishing allowance δ of the contact surface T is inserted between the fixed liner 9A and the back surface 8 of the anvil 2 ′, and the anvil 2 ′ is brought into contact with the slider 3. The position of the contact surface T is adjusted so as to coincide with the position of the contact surface T of a new anvil 2 ′ shown in FIG.

  In FIG. 4 (B), only one adjustment liner 9B is provided for the sake of simplicity, but in general, a necessary number of sheets having a predetermined thickness are generally used. Is.

  Further, as a result of such adjustment, the position of the back surface 8 of the anvil 2 ′ is moved to the front of the slider 3 by the thickness of the adjustment liner 9B, so that it is attached to both side surfaces of the anvil 2 ′ in FIG. The side blocks 6 and 6 that have been used are replaced with side blocks 6 'and 6' that are shorter in size in FIG.

  As described above, in this type of conventional sizing press, when the anvil is refinished, it is necessary to remove the side block bolted to the anvil, and the refinished anvil is attached to the slider. In this case, since it is necessary to replace the side block with a short size, it is necessary to prepare a plurality of types of side blocks with different sizes.

  In addition, when the side block is replaced with a shorter one after refinishing the anvil, the number of bolts that secure the side block to the anvil decreases, so the load applied to each bolt when using the sizing press is large. There was a risk of breaking or loosening during use.

  In addition, since it is necessary to machine a plurality of screw holes for bolts to attach the side block to the anvil, it takes time and effort to manufacture, and a plurality of these screw holes are provided close to each other on both sides of the anvil. Therefore, cracks may occur from the inside of the screw hole or from the opening due to the load that repeatedly acts on the anvil during the press molding of the slab.

  Accordingly, the present invention provides a sizing press anvil that solves the problems of the conventional sizing press as described above, has a simple structure, is low in manufacturing cost, and can improve reliability. It is an object of the present invention to provide a method for adjusting the mounting position of an anvil of a sizing press that allows easy attachment / detachment of an anvil and positioning adjustment work.

  The sizing press anvil of the present invention provided to achieve the above object is a pair of reciprocating drives synchronously from both sides in a direction perpendicular to the conveying direction with respect to a slab conveyed on a hot rolling line. These sliders are used in a sizing press that press-molds both side surfaces of the slab to a predetermined width with anvils respectively held by these sliders, and the front end surfaces are provided on the holding members provided on both sides of the sliders. A side block portion for abutting and positioning the mounting position with respect to the slider forward and backward is formed integrally on both side surfaces.

  The method for adjusting the anvil mounting position of the sizing press according to the present invention includes a pair of sliders that are driven to reciprocate synchronously from both sides in a direction perpendicular to the conveying direction with respect to the slab conveyed on the hot rolling line. In a sizing press in which both sides of the slab are pressed to a predetermined width with the anvils held by these sliders, when the anvil is attached to the slider, an anvil in which side block portions are integrally formed on both sides is used. After adjusting the position of the front end surface of each side block part by cutting so that the surface that contacts the slab of the anvil is at a desired position with respect to the slider, it protrudes forward from both sides of the anvil receiving surface of the slider The front end surface of each side block part is brought into contact with the holding member provided at each fixed position, and the back surface of the anvil and the slide By inserting a liner between the anvil abutment, it is characterized by positioning the position of the anvil relative to the slider.

  According to the first aspect of the present invention, the side block portion that is conventionally manufactured as a separate part from the anvil and is fastened and fixed to the anvil by the bolt is formed integrally with the anvil, and is configured as a single part. The number of points can be reduced, and as a result, the anvil can be easily attached to and detached from the slider of the sizing press and the positioning adjustment work can be facilitated, and the manufacturing cost can be reduced.

  In addition, since the side block is integrated with the anvil, the bolt breaks due to vibrations and impacts acting on the anvil when the sizing press is operating, as in the structure in which the conventional anvil is bolted to the side block. And there is no need to form many screw holes for screwing bolts into the anvil, so there is no risk of cracking from these screw holes, and the durability of the sizing press Reliability can be increased.

  According to the second aspect of the present invention, when wear occurs on the contact surface of the anvil with the slab, and when the contact surface is cut and refinished, the same amount of thickness as the finish margin is obtained. Only by cutting the front end face of the side block part, the side block is fastened and fixed to the anvil with a plurality of bolts, and compared with the conventional method where the side block is replaced with a shorter one each time the anvil is refinished, Positioning adjustment with respect to the slider of the anvil can be performed easily and with high accuracy. Moreover, since the range in which the positioning can be adjusted can be increased, the number of times the anvil can be refinished can be increased, and the life of the anvil can be extended.

  FIG. 1 is a perspective view showing an embodiment of an anvil according to the present invention. As shown in FIG. 1, an anvil 2 according to the present invention is made of a material similar to that of a conventional anvil and has side walls on both sides. The block portion 2A is integrally cast and is subjected to cutting finishing to a predetermined dimension. In these side block portions 2A, the dimension between the front end surface a and the anvil back surface 8 is finished to the same length on both the left and right sides.

  FIG. 2A is a diagram showing a state where a new anvil 2 is attached to the slider 3, and a fixed liner having a predetermined thickness is provided between the back surface 8 of the anvil 2 and the anvil receiving surface 10 of the slider 3. 9A is inserted, and the front end surfaces a of the side block portions 2A, 2A integrally formed on both sides of the anvil 2 are holding members attached to the overhang portions 11, 11 on both sides of the front surface of the slider 3. 12 and 12 are held in contact with each other.

  In this state, the holding members 12 and 12 are fastened to the projecting portions 11 and 11 of the slider 3 by bolts 13 and 13, respectively, and the anvil 2 and the slider 3 are coupled. And when the contact surface T with the slab of the anvil 2 is worn out after using the sizing press for a while, the contact surface T is cut by the finishing allowance δ of the depth at which the wear has not reached, Refinish the flat surface again.

  On the other hand, the front end surfaces a of the side block portions 2A and 2A on both sides are scraped off by a depth equal to the finishing allowance δ of the contact surface T and attached to the slider 3 as shown in FIG. At this time, the adjustment liner 9B having a thickness equal to the finishing allowance δ is added to the fixed liner 9A so that the position of the refinished contact surface T with respect to the slider 3 is the new anvil shown in FIG. 2 so as to be in the same position as the contact surface T.

  In this embodiment, a single adjustment liner 9B having a thickness equal to the finishing allowance δ is used. However, a plurality of types of adjustment liners 9B having the same thickness or different thicknesses are prepared. Alternatively, a plurality of these may be combined so as to have a thickness suitable for the finishing allowance δ.

  Moreover, in this embodiment, when attaching the anvil 2 which refinished the contact surface T with a slab to the slider 3, the front end surface a of the side block part 2A is cut and finished, but a new anvil is used as the slider. When installing, the front end face of the side block part of a new anvil should be finished rough, and the front end face of the side block part should be precisely cut and aligned by the desired amount immediately before attaching to the slider. May be.

  INDUSTRIAL APPLICATION This invention can be utilized for the sizing press which has the anvil hold | maintained at the slider reciprocated synchronously from both sides in the direction orthogonal to the conveyance direction with respect to the slab conveyed on a hot rolling line.

It is a perspective view which shows one Embodiment of the anvil which concerns on this invention. It is a figure which shows the attachment state to the slider of the anvil which concerns on this invention, (A) is an attachment state in case an anvil is new, (B) shows the attachment state after refinishing. It is a principal part schematic structure figure of a sizing press which has an anvil which reciprocates with a slider. It is a figure which shows the attachment state to the slider of the anvil in the conventional sizing press, (A) shows the attachment state when an anvil is new, (B) shows the attachment state after refinishing.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sizing press 2, 2 'Anvil 2A Side block part 3 Slider 4 Inlet side pinch roll 5 Outlet side pinch roll 6, 6' Side block 7 Bolt 8 Anvil back surface 9A Fixed liner 9B Adjustment liner 10 Anvil receiving surface 11 Overhang part 12 Holding Member 13 Bolt S Slab F Side surface T of slab Contact surface a with slab Front end surface δ of side block portion Finish of contact surface

Claims (2)

It has a pair of sliders that are driven to reciprocate synchronously from both sides in the direction perpendicular to the conveying direction with respect to the slab conveyed on the hot rolling line, and both sides of the slab with anvils respectively held by these sliders Is an anvil of a sizing press that is press-molded into a predetermined width,
A sizing press characterized in that a side block portion for positioning the mounting position on the slider forward and backward is formed integrally on both side surfaces by abutting the front end surfaces to holding members provided on both sides of the slider. Anvil. It has a pair of sliders that are driven to reciprocate synchronously from both sides in the direction perpendicular to the conveying direction with respect to the slab conveyed on the hot rolling line, and both sides of the slab with anvils respectively held by these sliders In the sizing press that press-molds the
When attaching the anvil to the slider, use an anvil with side block parts formed integrally on both sides,
The surface that contacts the slab of the anvil is at the desired position with respect to the slider.
After adjusting the position of the front end face of each side block by cutting,
The front end surface of each side block part is brought into contact with the holding members provided at fixed positions protruding forward from both sides of the anvil receiving surface of the slider, and a liner is provided between the anvil back surface and the anvil receiving surface of the slider. An anvil mounting position adjusting method for a sizing press, characterized in that the anvil position with respect to a slider is interposed.

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