KR101091420B1 - An Apparatus for Cutting Wire-Rod - Google Patents

Abstract

In the case of crop-chopping the wire during rolling, a wire cutting machine having a material withdrawal function with the output power of the material itself is provided.

The wire cutting device having a material withdrawal function includes a rotating body installed on a pair of rotating shafts installed on the wire cutting device body for rotating the rolled material during wire production, and a plurality of radially rotating parts of the rotating body. Crop-chopping braid for cropping and chopping, and the withdrawal means for mounting the material through the elastic member so as to elastically contact with the traveling material out of the pass line running between the braid to the rotating body, The material withdrawing means may include an arc-shaped takeout plate disposed between the cropping and chopping braids to contact the traveling material deviating from the pass line, and one end connected to an inner surface of the takeout plate, and the other end may be interposed with the elastic member. An operating bar that is fluidly connected to the rotating body; And it is configured so as to draw the material.

According to the present invention, by directly withdrawing the material from the cutter, the length of the cropped-chopping material is not only constant, but also absorbs the impact with the material during cutting to prevent breakage of the cutter braid, Reducing the number of times to reduce the wear of the braid, while the stable progress of the rolled material can achieve an improved effect of preventing the progress of the material, such as the winding of the cutter.

Wire Rod, Cro-Chopping, Wire Cutter, Material Pulling, Crop-Chopping Braid

Description

Wire rod cutting device with material extraction function {An Apparatus for Cutting Wire-Rod}             

1 is a schematic diagram showing a conventional wire cutting process

Figure 2 is a front view showing a conventional wire cutting machine

Figure 3 shows the operating state of the conventional wire cutting machine,

(a) is a state diagram showing normal wire cutting operation

(b) is a state diagram showing the state of poor cutting due to the coble of the material

(c) is a state diagram showing the state of cutting failure due to the departure of the material

(d) is a state diagram showing the deviation state of the guide material

Figure 4 is a block diagram showing the overall configuration of a wire cutting device having a material withdrawal function according to the present invention

Figure 5 is a perspective view of the main part showing the present invention wire cutting device

Figure 6 is a main part showing a cutting material state of the present invention wire cutting device

Figure 7 is an exploded view of the main portion showing the material withdrawing means in the present invention wire cutting device

8 (a) and (b) is a state diagram showing the operating state of the present invention wire cutting device

Explanation of symbols on the main parts of the drawings

1 .... wire cutting device 10 .... rotary shaft                 

20 .. Rotator 22 .... Braid Fixture

24 .. Mounting groove 40 .... Crop-Choping Braid

60 .... Material extraction means 62 .... Elastic member

64 .... withdrawal plate 66 .... working bar

80 .... circular rotors 82 ... crop-cutting

The present invention relates to a wire cutting machine for cropping and chopping the material during wire production, and more specifically, to the material directly in the cutter even if the end of the rolled material during crop-chopping through the cutting machine during wire rolling is out of the rolling mill. By withdrawing, it not only keeps the crop-chopping material length constant, but also absorbs the impact with the material during cutting to prevent breakage of the cutter blades, while reducing the number of crop-chopping, while reducing wear It relates to a wire cutting device having a material withdrawal function to prevent the end of the material to perform a stable progress in the guide guide to prevent the winding in the cutter due to the guide departure of the material.

Wire rod rolling, which is carried out in the production of wire rods in steel mills, usually heats a billet material having a cross section of 160 x 160 mm at a heating furnace of about 940-1200 ° C, which can be rolled according to the steel type of the billet, The wire rod product is produced through a process, as shown in FIG. 1, the material is roughly diameterd through a continuous rolling process of several stages of rough rolling, intermediate rough rolling 100, intermediate finishing rolling 110, and finishing rolling. Wire rods of 5.5-42 mm are produced, followed by cooling, winding, heat treatment, product inspection, and basis weight.

However, in the rough rolling step 100, the billet extracted from the heating produces a rolled material having a diameter of about 95-100 mm through a rolling mill (# 1-5 STD), and the rough rolled material is a cutter ( At Shear, its top and tail are cropped to a predetermined length (120 in FIG. 1).

In the intermediate rough rolling process, the rolling material supplied from the rolling mill (# 5 STD) is passed through eight rolling mills (# 5-11 STD) to produce a rolled material having a diameter of about 29-42 mm, and a cutting machine ( # 11 Shear) Crop-cut the tip and the end of the rolled material into poor lengths and then produce wire rods with a diameter of 5.5-42 mm through intermediate rolling and finishing rolling. do.

However, as shown in FIG. 1, wire rod rolling is a ball rolling using a ball rolling roll, and due to the characteristics of the wire rod rolling, in each process, the rolled material is separated from a pass-line due to an abnormality of the rolling process ( cobble) occurs intermittently, and the rolled material is separated from the pass-line by crop-chopping the entire length of the rolled material S in the cutters (# 5, # 11 Shear) 200. To prevent it.

At this time, as shown in FIG. 1, when a problem occurs in each process of the wire rolling, or can no longer perform the wire rolling, the cutter (# 5 Shear) or (# 11 Shear) ( In 200), the entire length of the rolled material is crop-choped to allow the next rough and intermediate roughing of the wire rod to be carried out.

Meanwhile, FIGS. 1 and 2 illustrate the cutter 200 (# 5 Shear) in the wire rod rolling process, and the conventional wire rod cutter 200 is a rotary shear that rotates in a rotary shear manner. Four crop-chopped bread blades 212, 214, 216, 218 are mounted on the outer side of 210, and one crop-cutting braid 222 is fixed on the inside thereof, respectively. The cutter body 210 and the respective blades are configured in pairs to operate as a whole cutter 200.

In addition, in FIG. 2, reference numerals 230 and 240 are upper and lower speed reducers and a driving motor connected to each other to transmit power to the associated rotating shaft 210.

1 and 2, the crop-cutting braids 222 are positioned on the pass-line P of the rolled material S in the conventional roughing mill 100 side cutter 200. Crop-cutting the tip and end of the rolled material (S), and the other crop-chopped braids (212-218) are located at the point where the rolled material (S) deviates from the pass-line (P) Crop-Cutting the rolled material (S) to a predetermined length to operate the crop-box 250 to process.

Meanwhile, a trough guide 120 for guiding the rolled material S to the cutter 200 is a point deviated from the pass-line P by an actuator, for example, a drive cylinder 122. It is located at the crop-chopping line P '.                         

By the way, in the normal operation, for example, the material (S) is bitten by the rolling mill 100 and the in-output is received, the crop-chopping of the cutter 200 is roughly performed by the four crop-chopping braids 212-218. Although constant cutting at 900 mm intervals, but after the distal end of the material (S) deviates from the rolling mill 100, the in-output for moving the rolled material (S) is the four blades of the cutter (200) 212-218).

At this time, the distance between the rolling mill 100 and the cutter 200 is about 5 m or more, the rotary radius of the blades 212-218 of the cutter is about 575 mm, and the distance between the surfaces of the rolled material S is 525 mm. .

Accordingly, the distance at which the cropping-chopping braids 212-218 of the cutter 200 should pull the rolled material S is at least 234 mm, which is the cropping-cutting length of the cutting machine 234 mm. Compared to 900 mm, which is the crop-chopping length of the normal cutter, the number of crop-chopping in the cutter 200 is greatly increased by about 21 times.

Alternatively, problems arise such that the wear of the genital crop-chopping braids increases as the number of cutter crop-choppings increases, the power consumption of the cutter increases, and the crop-chopping time in the cutter is delayed.

That is, as shown in Figure 3a, the roll of the rolling mill 100 when the two-loop guide 120 is changed from the pass line (P) to the chopping line (P ') through the actuator 120 or more after the post-process When the end of the material is out due to the speed, the length of the crop material (S) is gradually shortened because it is chopped by the in-output of the crop-chopping blades (212-218) of the cutter (200), which increases the number of crops. It is to let.

Next, as shown in Figure 3b, when the length of the crop material (S) is shortened, the phenomenon that the continuous material (S) continuous to the roughing mill 100 pushes the shear crop material (S) occurs Crop- Cobble phenomenon occurs in which the material is wound around the chopping braids 212-218.

In addition, as shown in FIGS. 3C and 3D, the impact at the moment of the cutting of the rotating cutter crop-chopping braids 212-218 and the out of center of gravity of the material are wound on the cutter crop-chopping braids or the two-loop guide 120. ) Is the phenomenon that the material (S) is separated.

Therefore, if the end portion of the material is out of the rolling mill when cutting for crop-chopping of the material, it may be preferable to generate the output power to pull out the material from the cutter itself, because it can solve the various problems described above.

The present invention has been made in order to improve the various problems as described above, the object of the present invention is to pull the material directly from the cutter, even when the end of the rolled material during the crop-chopping through the cutter during the wire rod rolled out of the mill, Wire cutting device having a material withdrawal function to reduce the wear by making the length of the chopped material constant, and absorbing the impact with the material during cutting to prevent breakage of the cutter blades, while reducing the number of crop-chopping Is in providing.                         

In addition, another object of the present invention, the end portion of the rolled material discharged from the rolling mill during the crop-chopping of the material through the cutter to perform a stable progress in the guide rope to prevent the winding of the cutter due to the guide deviation of the material It is to provide a wire cutting device having a material withdrawal function.

The present invention as a technical configuration for achieving the above object, the wire cutting device for crop-chopping the rolled material during the production of the wire, the rotating body installed on a pair of rotating shafts installed to drive the rotation of the apparatus body;

Crop-chopping braids radially mounted to the rotating body to crop-chop the moving material; And,

And a material extracting means mounted on the rotating body via an elastic member so as to elastically contact with a traveling material that is out of the pass line between the braids.
The material withdrawing means is disposed between the cropping-chopping braids and has an arc-shaped withdrawal plate in contact with the moving material deviating from the pass line, and one end is connected to the inner surface of the withdrawal plate, and the other end is interposed with the elastic member. By providing a wire cutting device having a material withdrawal function configured to include a working bar fluidly connected to the rotating body.

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In addition, the rotating shaft to the inside of the rotating body is provided with a circular rotating body to which the crop-cutting braids for cutting the front end and the distal end of the traveling material on the pass line.

Preferably, the rotating body is composed of a rectangular body to which the rotary shaft is assembled, the outer peripheral surface is formed with a fixed angle fixed to the crop-chopping braid is formed at a predetermined angle, the rotating body and the operation bar of the material extraction means and Mounting grooves in which the elastic members are installed in association are formed.

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In addition, the elastic member is composed of a coil spring, the rotating body mounting groove is made of a nut seating portion is seated on the operating bar passing hole formed on the outer circumferential surface of the rotating body and the nut coupled to the operating bar inward, the operation bar It is configured to be able to flow in the radial direction upon the material contact of the withdrawal plate.

Preferably, the outer surface of the withdrawal plate may be integrally formed with uneven portions to prevent slipping when the material is drawn out, and the compression of the withdrawal plates corresponding to the diameter of the material to be pulled out between the withdrawal plates proceeds. It is preferable that the circumference is determined.

Hereinafter, an embodiment of the present invention according to the accompanying drawings.

Figure 4 is a block diagram showing the overall configuration of a wire cutting device having a material withdrawal function according to the present invention, Figure 5 is a perspective view of the main portion showing a wire cutting device of the present invention, Figure 6 is a raw material of the wire cutting device of the present invention Fig. 7 is an exploded view showing the cutting state, and Fig. 7 is an exploded view showing the material extracting means in the wire cutting device of the present invention, and Figs. State diagram.

4 to 6 shows the overall configuration of the wire cutting device for crop-chopping and crop-cutting the rolled material in the production of the wire rod of the present invention.

That is, as shown in Figs. 4 and 5, the wire cutting device 1 of the present invention is largely installed on the apparatus body side, the rotary body 20 is arranged in pairs on the upper and lower sides, and the rotating body ( Crop-chopping braids 40 installed in 20) and the material withdrawing means 60 providing the material withdrawal power, which can be divided into the components 20, 40 and 60 in detail. As follows.

First, the rotating body 20 of the wire cutting device 1 according to the present invention, as shown in Figures 4 and 6, is mounted so as to rotate the drive upper and lower body 2 of the cutting device (1) Rotating shaft insertion opening 20a is formed in the center of the rotating body 20 so as to be integrally mounted as a key 12 at the end of the rotating shaft 10.

Therefore, as shown in FIG. 2, when the rotary shaft 10 is driven by the motor 240 and the connection reducers 230 and protrudes horizontally upward and downward through the bearing members in the apparatus body 2, The upper and lower rotors 20 are cropped-chopping or passlines in which the material S is in the opposite direction, that is, the material S is co-choked with the material S in a position out of the material S and out of the pass line (P ′ in FIG. 2). When the material (S) on the (S) in the co-cut bath is rotated in the direction of cutting the material.

At this time, as shown in Figure 6, the rotating body 20 is composed of a rectangular body assembled to the rotating shaft 10 as described above, while cropping to perform the crop-chopping of the material at intervals of 90 degrees to the outer peripheral surface Fixtures 22 to which the chopping braids 40 are fixed are provided integrally, wherein the braids 40 are fastened as bolts to the holder 22 and can be separated and replaced as necessary.

Meanwhile, as shown in FIGS. 5 and 6, bolt holes 26a are formed at one side of the rotating body 20 so that the elastic member 62 and the operation bar of the material extracting means 60 will be described later. A cover 26 that protects the 66 is fastened as a bolt 26b.

6 and 7, the elastic member 62 and the operation bar 66 of the lead-out means 60, which will be described in detail below, are provided between the holders 22 of the rotating body 20. Is provided with mounting grooves 24 are installed in conjunction.

At this time, the rotating body mounting groove 24 is a nut seating portion (24b) is the operating bar through-hole (24a) formed in the outer peripheral surface of the rotating body 20 and the nut coupled to the operating bar 66 to the inside At this time, the nut seating portion 24b is rotated when the withdrawal plate 64 of the take-out means 60 is pulled out while rotating the material in contact with the material (S) as described below, It is important that the depth be formed in view of the flow of the actuation bar 66 to enable it to flow radially.

As a result, the mounting groove 24 of the rotating body 20 is formed in a T-shape, and this portion is covered with the cover 26, as described above, the dust is prevented from entering.

Next, as shown in Figures 5 to 7, the crop-chopped braid 40 of the wire cutting device (1) of the present invention, a plurality of radially mounted of the rotating body 20, the progressive material (S) And to crop-chop.

That is, the cropping-chopping braids 40 are detachably mounted as bolts in a vertical direction to the fixing bracket 22 in which a total of four protrudes at approximately 90-degree intervals in the radial direction of the rotor 20. As shown in FIG. 8, when the upper and lower pairs of the rotating bodies 20 rotate in opposite directions by the rotation axis, the material S is co-chopped, and in this case, the material is a tour guide. The state P 'is out of the pass line by 120 (FIG. 6).

Next, FIGS. 5 to 7 show the material extracting means 60 of the wire cutting device 1 of the present invention.

That is, as shown in Figure 6 and 7, the material extraction means 60 of the present invention, the progress material (S) out of the pass line running between the braid 40 to the rotating body 20 (S) It is mounted via the elastic member 62 so as to elastically contact the structure) is configured to perform material withdrawal.

At this time, the material extracting means 60 of the present invention is specifically, disposed between the crop-chopped braid 40 and arc-shaped withdrawal plate 64 in contact with the traveling material (S) off the pass line, and One end is connected to the inner surface of the extraction plate 64, the other end is the operation bar 66 is connected to the mounting groove 24 of the rotating body 20 via the elastic member 62 so as to be flowable. It is composed.

On the other hand, the elastic member 62 is a coil spring that is fastened to the operation bar 66, interposed between the inner surface of the extraction plate 64 and the outer circumferential surface formed with the mounting groove 24 of the rotating body 20 do.

Thus, as shown in FIGS. 6 and 8, the withdrawal plates 64 of the material withdrawing means 60 are equally disposed between the four cropping-chopping braids 40 and the coil springs are the same. The front end of the material S, which proceeds to enter the cutting device 1 by the elastic member 62, is engaged between the arc-shaped take-out plates 64, which rotate up and down first, and then the material is taken out. ), That is, forward force is received by the rotational force rotating by the rotation of the rotary shaft 10 and the rotary body 20.

As a result, in the cutting device 1 of the present invention, the withdrawal plate of the withdrawal means is added in the cutting device 1 of the present invention, as compared with the force which is advanced only by the crop chopping braids 212-218 at the moment when the distal end of the conventional material is separated from the rolling roll mold. Since the end portions of the material are continuously pulled away from the rolling roll mold by the 64, the length of the cropped-chopping material S 'is constant and the number of cropping- choppings can be kept constant. will be.

In addition, as shown in FIG. 8A, the inner diameter between the extraction plates 64 maintains D1 by the elastic force of the elastic member 62 before contact with the material, but compresses the elastic member 62 when contacted with the material once. At the same time, the operation bar 66 is lowered from the nut seating portion 24b of the rotating body mounting groove 24, the withdrawal plate 64 is drawn out as smoothly as possible while the contraction movement by the diameter of the material, Flow operation is actually crop-chopping braids (40) to absorb the shock generated when cutting the material to prevent damage to the device or cut failure caused by the impact.

That is, the withdrawal plate 64 of the material extraction means of the present invention is compressed flow at the time of material contact by the elastic member 62 which is a coil spring and the operation bar 66 which is movably connected to the rotating body 20 via the coil spring. It works and offers several benefits.

On the other hand, as shown in Figure 5 and 6, it is preferable that the uneven portion 64a for maintaining the material contact force on the outer surface of the extraction plate 64 is formed.

Next, as shown in Figure 5, the cutting device 1 of the present invention is provided with a crop-cutting braid 82, which is a circular rotating body mounted to the rotating shaft 10 inwardly of the rotating body 20 Provided at (80), the crop-cutting braid 82 performs crop-cutting to cut the front end and the end of the traveling material S on the pass line P. FIG.

However, it is important at this time that the gap during the maximum compression of the extraction plate 54 of the material extraction means 60 in the wire cutting device 1 of the present invention should be adjusted to be slightly smaller than the diameter of the material, which is the extraction plate 64 It is because there is a possibility that excessive grooves are formed on the surface of the material because the material is excessively picked up and drawn out when the maximum compression interval is larger than the material diameter.

Accordingly, in the wire cutting device 1 of the present invention, even if the advancing material is separated from the rolling roll mold part, the withdrawal plate 64 of the withdrawing means flows out the material S while the material S is released from the pass line. Crop-chopping is always a certain length and number of times.                     

That is, when an abnormal material progress such as a cobble or the like occurs during the wire rolling, when the material is guided to a position away from the normal pass line, which is a crop chopping position by the operation of the tour guide 120, the present invention Since the cutting device 1 of the present invention has a function of withdrawing the material during cropping-chopping, the cropping-chopping is performed stably, and through the crop-cutting braid 82 provided in the device during the normal progress of the wire rod. The cutting edges and distal ends of the advanced material will be cut normally, and in the end, all cutting operations in the entire material progress will be stably performed.

As described above, according to the wire cutting device having the material extracting function of the present invention, since the rolled material is pulled out directly from the cutting machine, the crop-chopping length of the material can be kept uniform in the cutting machine of the wire rough rolling process. The crop-chopping frequency is reduced, providing the benefit of aligning the life of the cutter crop-chopping braids.

In addition, as the number of crop-chopping is reduced, the operation of the cutting paper itself is reduced, thereby reducing its power consumption, as well as providing an effect of shortening the crop-chopping time in the cutting machine.

Finally, since the end of the raw material passes through the rolling mill and draws the material directly from the cutter, since the end of the raw material proceeds stably on the same pass-line in the trap guide, the trough guide detachment of the rolled material is prevented, It prevents the progress of rolling material wound on the cutting machine and improves the operation of the cutting machine as a whole. In particular, it is possible to absorb the shock of the braid when cutting high carbon steel, and thus to improve the service life of the braid. To provide.

While the invention has been shown and described in connection with specific embodiments so far, it will be appreciated that the invention can be varied and modified without departing from the spirit or scope of the invention as set forth in the claims below. It will be appreciated that those skilled in the art can easily know.

Claims (6)

In the wire cutting device for crop-chopping the rolled material in wire production, A rotating body installed on a pair of rotating shafts installed to drive the rotating body in the apparatus body; Crop-chopping braid for mounting a plurality of radially of the rotating body to crop-chop chopping material; And, And a material withdrawing means for performing material withdrawal through an elastic member so as to elastically contact a traveling material that is out of the pass line between the braids on the rotating body. The material withdrawing means may include an arc-shaped takeout plate disposed between the cropping and chopping braids to contact the traveling material deviating from the pass line, and one end connected to an inner surface of the takeout plate, and the other end may be interposed with the elastic member. And a working bar fluidly connected to the rotating body to draw the material while flowing with elastic force during material contact. The method of claim 1, Wire cutting device, characterized in that the rotating shaft to the inside of the rotating body is provided with a circular rotating body is fixed to the crop-cutting braid for cutting the front end and the distal end of the progress material on the pass line. According to claim 1, wherein the rotating body is composed of a rectangular body of the rotating shaft is key assembly, the outer peripheral surface is formed with a fixed angle to which the crop-chopping braid is fixed at a predetermined angle, The rotating body is a wire cutting device, characterized in that the mounting groove which is installed in conjunction with the operation bar and the elastic member of the material extraction means. delete The method of claim 3, The elastic member is composed of a coil spring, the rotating body mounting groove is composed of a nut seating portion is seated on the operating bar through-hole formed in the outer peripheral surface of the rotating body and the nut coupled to the operating bar in the inner side, the operation bar is withdrawal plate Wire cutting device, characterized in that configured to be able to flow in the radial direction when contacting the material. The method of claim 1, The outer surface of the drawing plate is formed integrally with the uneven portion to prevent slipping when the material is taken out, Wire cutting device, characterized in that the compression circumference of the take-out plate is determined corresponding to the diameter of the material to be pulled out between the take-out plate.

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