KR100765080B1 - Rail structure for guiding knife holder of flying shear in rolling mill utility - Google Patents

Abstract

A rail structure for guiding a knife holder of a flying shear of a rolling mill is provided to allow for stable exchange of a knife by permitting a guide rail to be movable between the position far from a material to be rolled and the position for exchanging the knife holder such that a thermal distortion of the guide rail is prevented. A rail structure for guiding a knife holder of a flying shear of a rolling mill, includes a base(110) fixed on a frame(F), a horizontal slider(120) mounted on the base, a lower rail(160) fixed at the horizontal slider, a vertical slider(130) fixed at the horizontal slider, an upper rail(140) fixed at the vertical slider, a locking rail(180) arranged on the frame so as to support the vertical slider, and a pin fitted to the vertical slider and the locking rail so as to fix the vertical slider at a preset position of the locking rail.

Description

Rail structure for guiding knife holder of flying shear in rolling mill utility}

1 is a schematic configuration diagram showing a general rolling equipment;

Figures 2 (a) and (b) are perspective views showing upper and lower knife holders forming a general flying shear;

Figure 3 schematically shows a conventional flying sheer knife holder guide rail structure;

4 is a perspective view showing a conventional flying sheer knife holder guide rail structure;

5 and 6 are views showing the upper and lower knife holder to move along the rail;

Figure 7 is a view showing the overall flying shear knife holder guide rail structure according to the present invention;

8 is an exploded perspective view showing in detail the upper guide rail of the present invention;

9 is an explanatory view of the operation of the present invention.

※ Explanation of symbols about main part of drawing ※

110: base 112, 114: bend

116, 117: guide groove 120: horizontal slider

122: rail seating grooves 124, 125: striker

130: vertical slider 131: pinhole

132, 134: bend 133: sliding groove

140: upper rail 160: lower rail

170: pin 180: fixed rail

The present invention relates to a rail structure for guiding a flying sheer knife holder of a rolling mill.

Flying Shear, which is generally used in rolling equipment, is a rotary type continuous shearing machine equipped with two knives on the outer surface of a cylindrical drum. Refers to a device that shears and scrapes defective parts at the leading end and the end.

As shown in Fig. 1, the material B, which is rolled through a rolling mill in which the vertical rolling mill 1 and the horizontal rolling mill 2 are alternately arranged, is sheared to a certain length in order to be manufactured as a final product. In this case, flying shear is widely used as a shearing device used at this time.

The flying shear 10 has a knife fixed to a rotating arm, and wears and deforms or cracks of a knife frequently due to cutting the material B by applying a large force for a short time using the knife. do. If the knife is damaged in this way, since the cutting operation of the material B is not smooth, a quick replacement of the knife is required.

The exchange of the knife is carried out after moving the knife holder in which the knife is installed from the outside to the outside, wherein the heavy knife holder is moved along the rail provided in the frame forming the flying sheer (10).

The movement structure of such a knife holder is demonstrated with reference to drawings.

An upper knife holder 20 provided with an upper knife and a lower knife holder 30 provided with a lower knife are shown in FIG. 2, and each knife holder 20 has lower rail grooves 22 and 32 on the lower and side surfaces thereof. It has side rail grooves 24 and 34. In addition, the upper and lower knife holders 20 and 30 are fixedly installed with connectors 26 and 36, each of which is bent upward and downward.

In addition, as shown in FIGS. 3 and 4, the frames F constituting the flying sheer 10 have rails 28 and 38 mounted to move the upper and lower knife holders 20 and 30, respectively. And upper rails 28A and 38A fitted to side rail grooves 24 and 34 of the upper and lower knife holders 20 and 30, and upper and lower rails 28 and 38 respectively. Lower rails 28B and 38B to which the lower rail grooves 22 and 32 of the knife holders 20 and 30 are fitted are formed. In addition, the frame F is provided with an extension rail 40 via a hinge pin 42, so that the knife holder is rotated so as to be in line with the rail, the knife holder is framed along the rail and the extension rail ( Can be moved out of F).

5 and 6 show a state in which the upper and lower knife holders move along the rail, and the fastener 52 of the cart 50 is connected to the connector 28 of the upper and lower knife holders 20 and 30. The upper and lower knife holders 20 and 30 are moved along the rails 28B and 38B by moving the trolley 50 after coupling to the upper and lower ends.

However, such a rail is fixedly installed on the body of the flying sheer, that is, the frame F, and is disposed close to a material that proceeds for rolling and is easily thermally deformed by being exposed to high temperature radiant and conductive heat generated from the material.

Such thermal deformation has a problem in that productivity is lowered by impeding movement of the knife holder and the trolley to delay the replacement of the shear knife.

Accordingly, the present invention is to solve the above-mentioned conventional problems, the rail for flying shear knife holder guide of rolling equipment, which can suppress the thermal deformation by moving the rail installed to provide the movement path of the knife holder. Its purpose is to provide a structure.

As a technical configuration for achieving the above object, the present invention is a rail structure that is mounted to the frame of the flying shear forming a rolling facility to provide a movement path of the upper and lower knife holder, the base fixedly fixed to the frame; A horizontal slider slidably mounted to the base; A lower rail fixed to the horizontal slider; A vertical slider fixed to the horizontal slider; An upper rail fixedly mounted to the vertical slider; A fixed rail provided on the frame to support the vertical slider to be slidable; And a pin fitted to the vertical slider and the fixed rail to fix the vertical slider to a predetermined position of the fixed rail.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

7 is a view showing the overall structure of the flying sheer knife holder guide rail according to the present invention, Figure 8 is an exploded perspective view showing in detail the upper guide rail of the present invention.

The upper and lower guide rails 100 and 200 for guiding the upper and lower knife holders are installed in the main body constituting the flying sheer, that is, the frame F.

As such, since the lower guide rails 100 and 200 have substantially the same configuration only in different installation positions thereof, only the configuration of the upper guide rails 100 will be described below.

The guide rail 100 has a base 110 fixedly installed in the frame F and elongated along the exchange path of the knife holder.

The base 110 has bent portions 112 and 114 bent vertically upward at both end portions in the width direction, and at both ends with respect to the longitudinal direction of one bent portion 114 to be continuous for a predetermined length along the longitudinal direction. The formed slit-shaped guide grooves 116 and 117 are provided.

A horizontal slider 120 is placed on the base 110, and the horizontal slider 120 has a flat plate shape.

In addition, the center of the upper surface of the horizontal slider 120 is provided with a rail seating groove 122 formed continuously in a longitudinal direction, the guide groove 116 at one end in the width direction of the horizontal slider 120 Striker 124 (125) is formed so as to fit in the (117). In this case, the strikers 124 and 125 limit the distance that the horizontal slider 120 moves in the longitudinal direction of the base 110. Referring to FIG. 8, the horizontal slider 120 is illustrated in the drawing. When moving in the left direction, the movement is possible until the right striker 125 is caught by the left end of the right guide groove 117, and the left striker 124 when the horizontal slider 120 moves in the right direction of the drawing. Is allowed to move until) is caught by the right end of the left guide groove 116. That is, the horizontal slider 120 is mounted to allow a certain distance sliding on the base 110.

The lower rail 160 fitted into the lower rail groove of the knife holder is installed in the rail mounting groove 122 of the horizontal slider 120 so as to be disassembled.

The lower end of the vertical slider 130 is fixed to the other end of the horizontal slider 120, that is, the end opposite to the striker 124 and 125 via a bolt or the like.

The vertical slider 130 constitutes bent portions 132 and 134, the upper and lower ends of which are bent horizontally toward the horizontal slider 120, and the upper bent portion 132 is continuous in the longitudinal direction opposite to the bent ends. The sliding groove 133 is formed.

The sliding groove 133 has a configuration in which the fixed rail 180 formed in the frame F is accommodated so that the vertical slider 130 can move along the fixed rail 180.

In addition, the fixed rail 180 is formed at a predetermined depth in a downward direction starting from the top or a pin insertion groove (not shown) penetrated up and down is formed, the pin insertion groove is the length of the fixed rail 180 It is good to be located in several places along the direction at a certain distance.

In addition, the upper bent portion 132 of the vertical slider 130 is provided with a pinhole 131 formed to penetrate the pin 170 fitted into the pin insertion groove of the fixed rail 180. Therefore, when the pin 170 is fitted into the pinhole 131 of the vertical slider 130 and the pin insertion groove of the fixed rail 180, the movement of the vertical slider 130 is limited, and the pin 170 is a vertical slider. When projected from the pinhole 131 of the 130 and the pin insertion groove of the fixing rail 180, the vertical slider 130 is free to move.

In addition, the upper bent portion 132 of the vertical slider 130 is installed so that the upper rail 140 which is fitted into the side rail groove of the knife holder can be disassembled.

In addition, since the extension rail 40 is installed on the frame F via the hinge pin 42, the extension rail 40 is rotated so that the rail is aligned with the rail so that the knife holder is moved along the rail and the extension rail. F) to be moved outward.

The operation of the present invention will be described below.

Rails 100 and 200 of the present invention are to be in different positions, respectively, when rolling is performed and knife replacement operation is performed. In other words, when rolling is performed, it is located as far as possible from the rolled material (indicated by a solid line in FIG. 9) so that thermal deformation does not occur. It is moved (position shown by the dotted line in FIG. 9).

To perform the knife change operation, the pin 170 is removed and the horizontal slider 120 and the vertical slider 130 are moved toward the upper and lower knife holders 20 and 30.

The upper and lower knife holders 20 and 30 are moved until the striker 125 located on the right side of the figure is blocked by the left end of the guide groove 117 located on the right side of the figure.

In this state, the pin 170 is fastened again to limit the movement of the upper and lower knife holders 20 and 30, and the extension rail 40 is rotated to be in line with the lower rail 160, and then used in the bogie. By moving the knife holder 20, 30 to the outside of the frame (F), the knife replacement operation is performed.

After the knife change operation is completed, the method of returning the upper and lower knife holders 20 and 30 to their original positions is performed in the reverse order.

As described above, according to the flying shear knife holder guide rail structure of the rolling equipment according to the present invention, the upper and lower guide rails providing a moving path of the upper and lower knife holders are located far from the rolled material, and the upper and lower parts. Heat deformation by the rolled material is suppressed by allowing the movement of the knife holder to a position where replacement can be performed.

In this way, when the thermal deformation of the upper and lower guide rails is suppressed, the knife replacement work is stably prevented, thereby reducing the productivity and the labor and time required for the maintenance and repair of the facility.

Claims (3)

As a rail structure mounted on the frame of the flying sheer forming the rolling equipment to provide a movement path of the upper and lower knife holder, A base fixed to the frame; A horizontal slider slidably mounted to the base; A lower rail fixed to the horizontal slider; A vertical slider fixed to the horizontal slider; An upper rail fixed to the vertical slider; A fixed rail provided on the frame to support the vertical slider to be slidable; And And a pin fitted to the vertical slider and the fixed rail to fix the vertical slider to a predetermined position of the fixed rail. The rolling device of claim 1, further comprising: guide grooves formed to have a predetermined length on both sides of the base in the longitudinal direction, and a striker formed on the horizontal slider so as to fit into the guide grooves, respectively. Shear knife holder guide rail structure. The flying sheath knife holder guide rail structure of claim 2, wherein the base is formed of a bent portion in which both ends of the width direction are bent upwards, and the guide groove is formed in the bent portion.

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