KR100825591B1 - A cutting apparatus for wire rod coil with short pitch - Google Patents

Abstract

According to the present invention, when the hot material is rolled in the wire mill, the continuous heating furnace billet extraction pitch is short pitch, or the distance between the conveyor conveying coil is short, and when the rear end winding failure occurs, When two wires are produced, these wires are cut and transported for each part and unit, so that each part can be cropped and a short pitch wire coil can be produced at minimum pitch in continuous production. It is about.

The present invention, the bent groove formed so as to guide the connecting wire to the center of the tube bottom of the integrator; A cutting tool having a cutting blade movable by a power cylinder at both sides of the bending groove to cut a rear end wire of the preceding coil; and a cutting roller having a lowering roller by a lifting cylinder at an upper side of the cutting tool. A cutting device for short pitch wire coils configured to cut wires connected to each other between the wires and the following coils, including a wire rod positioning mechanism for lowering the wire rods positioned in the grooves to position the wire rods with the cutting grooves of the blades of the cutting tool. To provide.

Wire Rod Coil, Integrator, Line, Trailing Coil, Cutting Tool, Wire Rod Positioning Mechanism

Description

Cutting device for short pitch wire rods {A CUTTING APPARATUS FOR WIRE ROD COIL WITH SHORT PITCH}

1 is a schematic view showing a production process of a typical wire rod coil;

2 is an explanatory view of a connecting wire connecting the rear end of the preceding coil and the leading end of the following coil in the coil winding accumulator according to the prior art;

3 is an explanatory view showing a wire rod latching state that occurs when the preceding coil is transported in a state in which the rear end of the preceding coil and the leading end of the trailing coil are connected to each other in the coil winding accumulator according to the prior art;

4 is a perspective view showing a cutting device for a short pitch wire rod coil according to the present invention;

5 is an exploded view showing a cutting device for a short pitch wire rod coil according to the present invention;

6 is a detailed view showing a cutting device of a short pitch wire rod coil according to the present invention,

         a) a side view, b) a top view;

7 is an explanatory view showing that the cutting device of the short pitch wire rod coil according to the present invention cuts the rear end of the preceding coil;

8 is an explanatory diagram showing an operating state of a cutting tool provided in a cutting device for a short pitch wire rod coil according to the present invention.

       <Description of the symbols for the main parts of the drawings>                 

1 .... Cutting device for pitch wire coil

5 .... hoops 10 .... cutter

15a, 15b .... blade 22 ....

32 .... Pinch plate 37 .... Shock absorbing leaf spring

42 .. Piston rod 50 ....

60 .... Connecting Wire Positioning Mechanism

64 .... lifting cylinder 66 .... rack

68 .... pinion gear 70 .... support

72 .... Guide stand 300 .... Hot rolling mill

312a, 312b ... Conveyor Transfer Coil 320 .... Coil Winding Integrator

334 .... coiled drop guide cone

338 .... Mandrel 342 .... Iris

The present invention relates to an apparatus for cutting a coil in a coil winding integrator in the process of winding the coil. During hot rolling of a wire rod factory, continuous heating furnace billet extraction pitch is short pitch or conveas When the distance between the transfer coils is short and two winding wires are generated by overlapping winding in the final winding aggregator when the rear end winding failure occurs, these wires can be cut and transported for each part and part, so that cropping can be performed for each part. The present invention relates to a cutting device for short pitch wire coils that can be produced at a minimum pitch during production.

In general, wire rod continuous rolling is different depending on the line distance, but is usually divided into hot rolling material, heat treatment process transfer material, winding material, and is continuously produced at about three or more at the same time. The pitch between such wire materials is defined by the pitch time of the furnace extraction billet, but may vary according to the crop throughput during hot rolling.

As shown in FIG. 1, the wire rod in the process of being rolled into the raw material 302 being rolled in the hot rolling mill 300, the spiral coil forming material 312a by the winding machine 303, the final winding material 312b, and the like. When the coils 312a and 312b are continuously wound at various pitches p, when the winding failure occurs in the final conveyor, the conveyor conveying coils 312a and 312b are rolled and transferred to the wire coil to be heat treated and wound. It is generated as a defective material, and the raw material on the rolling line is cropped 312c with a shear 319 to be defectively processed.

In this way, the pitch between the conventional materials is a short pitch or when the winding failure occurs,

The influence is to be.

The conventional coil winding integrator 320 shown in FIG. 2 includes a conveyor roller 332 for transferring the wire coil 330 at an upper end thereof, and a ring-shaped coil 330 is wound at the lower end thereof so as to be dropped. A coiling drop guide cone (cone) 334 and a tube 336 surrounding it are provided, and a conduit mandrel 338 is positioned at a lower side of the guide cone 334, and the mandrel 338 is provided. The coil mounting plate 340 is provided to penetrate from the lower portion.

When the mandrel 338 is lowered, an iris 342 for supporting the cone 334 and dividing the winding coil 330 up and down from the lateral direction of the cone 334 is provided. It is arranged to be movable and has a pneumatic cylinder 344 for operating the iris 342.

In the coil winding integrator 320 as described above, the wire coil 330 falls to the center of the cone 334 in the state where the iris 342 is open at the start of winding of the coil 330, and the mounting plate 340 is applied to the coil winding integrator 320. When the drop winding is completed, the iris 342 is driven into the cone 334 by the power of the pneumatic cylinder 344 to wind up the trailing coil 330, which is subsequently provided, on the upper end of the iris 342. Identify the coil.

Thereafter, the coil 330 wound up on the seating plate 340 is mounted on the coil car 350 that enters from one side while the mandrel 338 and the seating plate 340 are simultaneously lowered. To be transferred to a correction line (not shown).

When the lead and trailing coils 330 are continuously wound in the above-described process, if the pitch between the lead and trailing coils 330 is short, the trailing coil (330) may be used before the iris 342 enters the cone 334 direction. Winding is generated in a state where the front end of the 330 extends in the direction of the cone 334 and overlaps the rear end of the preceding coil 330.

In addition, when the trailing wire of the preceding coil 330 falls into the cone 334, it is frequently caught at the upper end of the cone 334 due to a shape defect. When the leading end of the trailing coil 330 enters in the caught state, A portion of the pre- and trailing coils overlap each other to form a wound state, and a connecting wire R having these ends connected to each other is generated.

When the above phenomenon occurs, since the line and the trailing ends of the line and the following coils 330 are connected to each other, the coil 330 on the seating plate 340 is used by using the coil car 350 which is waiting as shown in FIG. In the case of conveying after clamping, it is impossible to transfer the preceding coil by the coil car 350 due to the connecting wire R connecting the ends of the leading and trailing coils.

If such a phenomenon occurs, the material currently being rolled is cropped (COBBLE), the trailing coil 330 is treated as a defective material, and when such a defect occurs, reprocessing work to solve it is also difficult.

As such, the pitch between the wire rod 330 and the trailing coil 330 is important for the distinction between the wire and the trailing coil, and is maintained longer than the operation time (post-process operation time) of the iris 342 or the coil car 350. After coil transfer by, it is maintained in proportion to the waiting time.

In addition, since the above problems occur, conventionally, the pitch between billets extracted from the heating furnace for each production size and steel type is extended to maintain stable production. However, when the pitch time is extended, there is a problem that the production and operation rate is lowered and the cost is increased. In consideration of the development of a controlled rolling technology capable of operating at the minimum pitch, the continuous coil winding of the leading and trailing coils can be performed at the minimum pitch (short pitch), and it is automatically processed even when the overlap winding occurs. The development of a technology is needed to enable continuous production.

The present invention is to solve the problems as described above, the object is, when the connecting wire is generated between the leading and trailing coil by the overlapping of the ends of the leading and trailing coil in the winding process, the coil winding and The continuous process of the transfer operation is made, as well as the cutting process for each part of the wire coil is provided to provide a cutting device for short pitch wire coil that can satisfy the weight requirements for various products.

The present invention to achieve the above object,

In the wire coil winding integrator, when the wire, the trailing coil is connected, in the device for cutting the wire rod,

It is formed to guide the connecting wire to the center of the tube bottom of the integrator

Erupted groove;

A cutting tool for cutting a rear end wire of the preceding coil by having a cutting blade movable by a power cylinder at both sides of the elongated groove; and,

A wire rod positioning mechanism for lowering the wire rod positioned in the elongated groove to position the wire rod to the cutting grooves of the blades of the cutter sphere by having a roller descending by an elevating cylinder at an upper side of the cutter slot. By providing a cutting device of a short pitch wire rod coil, characterized in that configured to cut the wire rods connected to each other between the line, the trailing coil.

Hereinafter, with reference to the drawings will be described an embodiment of the present invention in more detail.

The cutting device 1 of the short pitch wire coil according to the present invention has a bent groove for guiding the connecting wire R to the center of the lower tube 336 of the coil winding collector 320 as shown in FIG. 4. (5) is formed, the cutting tool 10 is installed so that the cutting center is made in the vicinity of the apex of the elongated groove (5).

The elongated groove 5 is formed in a shape in which the lower end thereof is widely cut and narrowed toward the upper end thereof, and the cutting tool 10 is a pair of tubes 336 of the coil winding integrator 320. The cutting blades 15a and 15b are provided to move through the power cylinder 17 through the opposed brackets 12.

The power cylinder 17 may be hydraulic or pneumatic, the body of which is mounted on the inner side of the bracket 12, the rods 17a are opposed to each other, and the rods 17a respectively have blades 15a. 15b and the holders 30 are mounted.

As shown in FIG. 5, the blades 15a and 15b are formed with a plurality of rounded grooves 20 whose ends are proportional to the diameter of the wire rod, and the cutting blade 15b on one side has a cross-section "c". It is formed to be coupled to the holder 30, the other cutting blade (15a) has a plate-like structure that is fixed to the "c" type holder 22 connected integrally with the other holder 30, these two-way cutting The blades 15a and 15b are disposed to face each other so that the blade 15a on one side is inserted into the blade 15b on the other side and cuts the wire rod therebetween.

In addition, the cutting tool 10 has a pair of flat pinch plates 32 which are arranged in pairs before and after the cutting blades 15a and 15b on the holder 30, respectively. When the connection wire (R) is cut by the blades (15a) (15b), the function of fixing and cushioning the scattering of the cutting wire due to the elasticity and tension of the wire (R).

The pinch plate 32 as described above, when the end is fixed to the connecting wire (R), the end of each pinch plate 32 is composed of a semi-circular cross section so that the fixed point is formed in a straight line, according to the production size of the wire As shown in FIG. 8 so that the fixing force is adjusted, the inside of the casing 35 is hollow, and the hollow part has a structure in which buffer leaf springs 37 are built.

In addition, a piston rod 42 having a sealant 39 mounted on an outer surface thereof is fitted inside the casing 35, and a through hole 42a is formed in the piston rod 42 in the longitudinal direction thereof. The rear end of the rod 42 is formed with a screw 45 is coupled to the holder 30 through a plurality of nuts 47. In addition, the casing 35 has a rear end thereof coupled to the fixed plate 50 through a bolt 49, and the fixed plate 50 has a hole 50a formed at the center thereof, so that the rear end threaded portion of the piston rod 42 ( 45 is configured to penetrate.

Accordingly, the pinch plate 32 is in a state in which the casing 35 is elastically supported toward the front side through the buffer leaf spring 37 with respect to the piston rod 42, and the inside of the casing 35 forms a hollow, sealing material. Since the casing 35 is pushed against the piston rod 42 by maintaining the sealed state with the outside through the 39, an internal compression force is generated, and this compression force is provided at a plurality of rear ends of the piston rod 42. It is configured to be adjusted by the pressure adjusting hole 53 and the adjustment screw (55).

The bi-directional cutting blades 15a and 15b and the balanced pinch plate 32 configured as described above are integrally mounted to the holder 30, and the tip of the pinch plate 32 is disposed more than the blades 15a and 15b. When the wire rod R is to be cut by the blades 15a and 15b, the pinch plates 32 are cut by the cutting blades 15a and 15b while the pinch plates 32 first fix the wire rod R. The cutting is to be made.                     

The holders 30 form a plurality of guide holes 30a in all directions, and the flow bars 33 are fitted in the guide holes 30a, respectively, and the buffer springs 33a are respectively inserted in the flow bars 33. ) And the cutting blades 15a and 15b and the pinch plate 32 and the holder 30 are moved by the power cylinder 17 through the rod 17a, and the holder 30 and the bracket 12 are moved. ) To absorb the shock applied to the holder (30).

On the other hand, the upper side of the cutting tool 10 is connected to the wire rod position adjustment mechanism 60, the position adjustment mechanism 60 is a concave long-shaped roller 62 has a concave center groove 5 Located near the apex, the lifting cylinder 64 for moving it up and down is provided, and the rack 62 for accurately guiding the roller 62 up and down by the lifting cylinder 64 66 and pinion gear 68 are provided.

The connecting wire rod position adjusting mechanism 60 is arranged such that the lifting cylinder 64 is vertically disposed, and the roller 62 is rotatably disposed at the end of the rod 64a through the support 70. 70 is rotatably connected to both rotation shafts of the roller 62, the upper end is slidably connected to the guide table 72 provided on the rear side of the lifting cylinder (64).

In addition, a rack 66 is provided on an upper surface of the support 70, and a pinion gear 68 geared to the rack 66 is positioned on an upper side of the lifting cylinder 64 so that the bracket 76 is provided. When the roller 62 is raised and lowered through the support 70 by the operation of the lifting cylinder 64 by being rotatably supported through the rack, the rack 66 provided on the support 70 is gear-coupled to the pinion gear 68. The guide is configured to achieve accurate movement of the roller 62.

According to the present invention configured as described above, a pitch p between the line and the following coils 330 is shortened or the shape of the preceding coil is caught in the rear end of the preceding coil 330 at the cone 334 of the coil accumulator 320. In the generated state, the trailing coil 330 enters and overlaps windings of the end portions of the wire rods, so that the present invention operates when the connecting wire R is generated from the lead and trailing coil 330.

When the connecting wire R is formed between the wires and the following coils 330 as described above, the coil car 350 enters along the rail 352 so that the arm 354 of the coil car 350 is the pneumatic cylinder 356. When the preceding coil 330 is rotated by clamping the preceding coil 330 at the power of, the connecting wire R is entangled with the trailing coil, that is, the trailing coil on the iris 342, and thus, together with the preceding coil 330. Not drawn out, as shown in FIG. 7, the preceding coil is pulled to the rear side.

Accordingly, the preceding coil, which is tilted by the coil car 350, is led to the curved groove 5 of the tube 336 by the rear end thereof, as shown in FIG. It is located in the upper side apex 5a to form a structure that is horizontally pulled as shown in FIG. In this case, the coil car 350 is in a stopped state, the roller 62 of the up and down position adjusting mechanism 60 of the connecting wire (R) is lowered by the hydraulic power of the lifting cylinder 64 is present The wire rod is pushed down to the position of the groove 20 of the blades 15a and 15b in proportion to the production size, and the cutting grooves 20 formed in the cutting blades 15a and 15b have a large diameter of the wire rod. In the case of 5.5∮ ~ 10∮, the wire rod is pushed so that the wire rod (R) coincides with the lower side cutting groove (20) in the upper side cutting groove 20, the size 11∮ ~ 16∮.

In this process, the roller 62 is able to move to the correct position through the gear coupling of the rack 66 and the pinion gear 68.

After the wire rod R is moved to the cutting groove 20 to be cut in this way, as shown in FIG. 7, the cutting blades 15a and 15b are moved by the operation of the power cylinder 17. When the power cylinder 17 is operated, the holder 30 moves forward along the flow bar 33, so that the parallel pinch plates 32 are lines of the cutting blades 15a and 15b. The rear end wire R of the preceding coil is crimped to fix the wire first, and at the same time, the bidirectional cutting blades 15a and 15b are advanced to cut the rear end of the preceding coil positioned therebetween.

Thus, the trailing wire R of the preceding coil is cut by the blades 15a and 15b of the power cylinder 17, and each cut end is picked up by the pinch plates 32 and splashed around. Do not.

As such, when the rear end of the preceding coil is cut, the preceding coil and the following coil are cut, and thus, the coil car 350 operates normally to forward the leading coil in the rotational stop state and transfer the coil to the correction line. Do.

On the other hand, the rear end portion of the preceding coil is cut by the blades (15a) (15b), so that the connecting wire portion generated by the overlapping phenomenon of the preceding coil and the trailing coil is located inside the trailing coil, the portion of the As shown, the cut end of the preceding coil is wound. This is to be removed together from the coil winding accumulator 320 is moved together in the transfer of the following coil.

In addition, in the above, the present invention has been described in the case where the ends of the line and the following coils are overlapped and connected to each other, but the present invention is not limited thereto, and the wire rod to be transferred to the coil car 350 is required whenever necessary. Since the cutting can achieve a smooth transfer, it is possible to cut the feed of each part of the wire rod, and step by step.

According to the present invention as described above, when the pitch of the wire coils extracted from the heating furnace is a short pitch, the distance of the conveyor conveying coil is short, or when the rear end winding failure occurs, the coil winding integrator 320 is finally wound up When it is generated, it is possible to achieve a smooth coil winding and coil transfer operation by cutting and transporting by the part of the wire rod, by step. Therefore, the production operation rate of the coil winding operation can be increased, the mass production of defective materials can be prevented, and the high temperature heating operation required for the coil reprocessing is unnecessary, and the production cost can be greatly reduced.

Claims (5)

In the wire coil winding integrator 320, when the wire, the trailing coil is connected, in the apparatus for cutting the wire rod, A curved groove 5 formed at the lower end of the tube 336 of the integrator 320 to guide the connecting wire R to the center thereof; Cutting tool (10) for cutting the rear end wire (R) of the preceding coil with cutting blades (15a, 15b) movable by the power cylinder 17 on both sides of the elongated groove (5); And, A blade 62 of the cutting tool 10 is provided by lowering the wire R positioned in the curved groove 5 by having a roller 62 that moves up and down by the lifting cylinder 64 on the upper side of the cutting tool 10. It is configured to cut the wire rod (R) connected to each other between the wire, the following coil 330, including a wire rod position adjustment mechanism 60 for positioning the wire rod to the cutting groove 20 of the (15a) (15b). Cutting device for short pitch wire rod, characterized in that. According to claim 1, wherein the blades (15a, 15b) of the cutting tool 10 is formed with a plurality of rounder-shaped grooves 20 whose ends are proportional to the diameter of the wire rod, the cutting blade (15b) of one side is " It is formed of a "C" -shaped cross section is coupled to the holder 30, the other cutting blade 15a has a plate-like structure that is inserted and fixed to the "c" type holder 22 connected integrally with the other holder (30) These two-way cutting blades (15a) (15b) are arranged to face each other so that the blade (15a) of one side is inserted into the blade (15b) of the other side to cut the wire rod therebetween, characterized in that the cutting process Device. According to claim 1, The cutting tool 10 is provided with a pair of balanced pinch plates 32, which are arranged in pairs before and after the cutting blades (15a) (15b), the pinch plates 32 are connected to their ends When fixing the wire (R), the end of each pinch plate 32 is composed of a semi-circular cross-section so that the fixing point is formed in a straight line, the inside of the casing 35 is made hollow, each of the hollow portion Since the shock absorbing leaf springs 37 have a built-in structure, the pinch plate 32 allows the casing 35 to be elastically supported forwardly through the shock absorbing leaf spring 37 with respect to the piston rod 42. When the 35 is pushed backward in contact with the wire rod, an internal compression force is generated, and such compression force is adjusted by a plurality of pressure adjusting holes 53 and adjustment screws 55 provided at the rear end of the piston rod 42. Short pitch wire rod, characterized in that configured The cutting device. According to claim 1, The connecting wire rod position adjustment mechanism 60 is arranged so that the lifting cylinder 64 is vertically arranged, the roller 62 is rotatable through the support 70 at the end of the rod 64a. The support 70 is rotatably connected to both sides of the rotating shaft of the roller 62, the upper end is characterized in that the sliding movement is connected to the guide 72 provided on the rear side of the lifting cylinder 64 Cutting device for single pitch wire coil. The upper surface of the support 70 is provided with a rack 66, the pinion gear 68 geared to the rack 66 is located on the upper side of the elevating cylinder (64) When the roller 62 is moved up and down through the support 70 by the operation of the lifting cylinder 64 by being supported to be rotatable through the bracket 76, the rack 66 provided on the support 70 is pinion gear 68. Cutting gear of the short pitch wire rod, characterized in that the gear is coupled to the gear configured to guide the accurate movement of the roller (62).

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