KR20100005844A - Apparatus and method for winding wire-rod - Google Patents

Abstract

PURPOSE: An apparatus and a method for winding wire-rod are provided to control the rotation speed of a roller of a transfer conveyor according to wire winding conditions. CONSTITUTION: An apparatus for winding wire-rod comprises a laying-head(30) and a transfer conveyor(50). The laying-head comprises a head-pipe(32). The head-pipe squirts to face the coiling material to the transfer conveyor and slope. The transfer conveyor comprises a roller(52) transferring the material dropped to the coil type to the laying-head one side. The head-pipe passes through a rotator(36) and is installed on a laying-head frame(34).

Description

Wire rod winding device and method {Apparatus and Method for Winding Wire-Rod}

The present invention relates to a wire rod winding apparatus and method, and more particularly, to improve the shape of the head pipe of the laying-head, while the roller rotational speed of the conveying conveyor to which the wound wire is dropped wire winding conditions Control to ensure the coil shape of the wire rod coil which is wound on the laying-head and dropped on the conveying conveyor is more uniform and uniform, and prevents from falling off, ultimately improving the quality of the wire coil. It relates to a wire winding device and a method.

The general wire production process is to heat the billet to the appropriate temperature in the furnace, and then to cool the hot-formed wire rods, which have undergone rough rolling, intermediate sanding and finishing rolling, in a water cooling system, and then through a laying head. When formed in the form of a spiral coil, heat treatment is performed in parallel with the transfer of the transfer conveyor, and then integrated through a reformer tube, and then introduced into a correction line.

For example, as shown in FIG. 1, the hot rolled material is rolled by the rolling mill 110, wound by a laying-head 130 cooled by a water chiller 120 that cools with water, and then the conveying conveyor 150. It is transported while falling seated in a circular wound material 100 on the roller 140 of.

At this time, the wound material 100 (the wire coil) is cooled by cooling air injected through a slit-shaped nozzle from the blower 152 installed in the lower portion of the conveying conveyor 150.

Then, the wound material 100 is transferred to the integrator 160 and integrated into the final wire rod coil.

Such an integrator 160 has a wire coil on an integrated table 168 that is elevated as a cylinder 170 inwardly of the tube 166 with the cone 164 connected to the mandrel 162 at a lower portion thereof as a center axis. 100 is continuously falling and accumulated, and the stack 168 is raised by the cylinder 170 at the initial stage of the wire coil drop and gradually descends according to the accumulation of the wire coil.

On the other hand, Figure 2 shows in detail the laying-head 130, such a known conventional winding facility.

That is, as shown in Figure 2, through the rotating body 134 is rotatably installed on the frame 132 to a bracket (135) in front of the rotating body to a high-speed connection jig (U-bend) A fixed head-pipe 136 is arranged to wind the material 100 to be conveyed in the form of a coil.

At this time, the rotating body 134 is supported by the bearing unit 134a on both sides of the frame, and the outer drive gear 134c in which the driven gear 134b fixed in the center is driven as the motor M is engaged with the frame 132. Rotationally driven on the

In addition, the rotating body is inclined by about 10 °, the end 136a of the head pipe 136 is almost vertical, and the material 100 wound in the form of a coil while continuously discharged from the cell pipe is 80 °. The drop is conveyed to the roller 140 of the transfer conveyor 150 while falling in the space of the degree.

Therefore, the material ejected and wound in the actual head-pipe maintains the interval of 'L1' (the distance between the material spin initial position P1 and the dropping position P2 of the conveying conveyor) from the end of the pipe to the roller.

As a result, in the case of the conventional laying-head, the interval 'L1' from the head-pipe to the roller drop point affects the shape of the wire rod. The longer the distance L1 is, the coil shape of the wire rod is not uniform and is not shifted to one side. The so-called "balloon" form is likely to occur.

However, in recent years, wire rod coil products have been emphasized on the importance of appearance and transport quality, and thus the uniformity of the winding form of the wire rod, that is, the coil form, has emerged as a quality standard.

For example, the laying head 130 may wind a small diameter material having a diameter of 5.5 mm to 11 mm. In particular, since the material having a diameter of 5.5 mm is the lightest in weight, the coiling and coiling when winding through the laying head may be performed. Problems such as poor shape can easily occur.

For example, in the case of a material having a diameter of 12 mm or more, the shape of the wire coil is controlled by using a wobble, a speed control in the end zone of the transfer conveyor, or a distributor.

However, when the diameter is difficult to use the wobble is 5.5mm, especially in the case of spring steel having a large elasticity, the coil height is not constant or winding shape control is difficult.

In addition, in the case of mild steel, when falling from the laying head to the roller 140 of the transfer conveyor 150, the phenomenon that the coil shape is easily distorted.

Accordingly, the applicant of the present invention improves the head-pipe structure of the laying-head, which is a small-diameter material winding facility, and adjusts the roller rotational speed of the conveying conveyor in conjunction with this to enable winding and transferring the wire rod in a more stable coil form. The present invention has been proposed.

The present invention has been proposed in order to solve the conventional problems as described above, and its object is to make the coil shape of the wire rod coil integrated after being wound on the laying head and dropped on the conveying conveyor to be more uniform and uniform, and biased. It is to provide a wire winding apparatus and method that prevents the fall, and ultimately improved the quality of the wire coil.

As a technical aspect to achieve the above object, the present invention, the head-pipe provided for winding the material including a head-pipe for ejecting the wound material inclined toward the transfer conveyor; And,

A conveying conveyor having rollers for conveying a material falling in the form of a coil to one side of the laying head;

It provides a wire winding device configured to include.

In another technical aspect, the present invention provides a method for manufacturing a coil comprising: winding a workpiece in a coil form by inclining a material through a head-pipe of a laying head to a conveying conveyor; And,

Controlling the roller rotation speed of the conveying conveyor when the conveying conveyor falls of the wound material;

It provides a wire winding method comprising a.

According to the wire rod winding apparatus and method of the present invention, it is possible to improve the shape of the head pipe of the laying-head, and to control the roller rotational speed of the conveying conveyor on which the wound wire drops, in accordance with the wire rod winding conditions. .

Therefore, the present invention allows the coil shape of the wire rod coil to be more uniformly and uniformly wound up on the laying-head and dropped on the conveying conveyor, and prevents from falling off, thereby ultimately improving the quality of the wire rod coil. It provides several effects.

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

First, in FIG. 3, the whole structure of the wire winding apparatus 1 which concerns on this invention is shown.

That is, the wire winding apparatus 1 of this invention blows in the inclination toward the conveyor 50 which conveyed the raw material, Preferably, the ejection angle (theta) of the wound raw material 10 is 45 degrees or less from a conveyance conveyor. A conveying conveyor including a laying head 30 provided to wind up a material including a head-pipe 32 configured to be a roller, and rollers 52 conveying the material falling in a coil form to one side of the laying head. 50) may be configured as an example.

At this time, the winding of the rolled material 10 substantially in the form of a coil is the laying head (30) in the device (1) of the present invention, the wire winding device (1) of the present invention and the laying head (30) The transfer conveyor 50 is cooperatively interlocked with each other to make the coiling form as constant as possible when the wire is wound.

That is, the apparatus of the present invention transfers the ejection angle θ of the material 10 of the head-pipe, that is, the spin-driven head-pipe 32 provided in the laying-head 30 as shown in FIG. 3. Within 10 degrees of the conveyor, preferably 30 degrees, the material 10 ejected from the head-pipe 32 and wound in the form of a coil falls on the roller 52 of the transfer conveyor 50 as quickly as possible. The fall time is shortened as much as possible.

For example, as described above, the conventional head-pipe 136 of FIG. 2 has a wound material because its material ejection angle at its end is close to 80 ° from the conveying conveyor 150 (the material falling down). In the present invention solves the problem that the time to fall over the roller 140 of the transfer conveyor 150 is delayed.

On the other hand, in the apparatus of the present invention, the head-pipe 32 passes through the rotating body 36 rotatably installed on the laying-head frame 34 and is attached to the bracket 36 attached to the rotating body 36 ( 36a) is fixed in a curved state with a connecting jig (U-bend, etc.), and ejects the material 10 while being driven in rotation to wind the material in the form of a coil.

Thus, in the case of the present invention, the spacing between the starting point for ejecting through the head-pipe 32 to create a ring for winding the material and the roller of the transfer conveyor 50 is much shorter than in the conventional L1 of FIG.

For example, although L1 of FIG. 2 is 1.4 m, in the case of the present invention, the end of the head-pipe is disposed closer to the conveying conveyor so that winding through material spin ejection starts 0.5 m in front of the head-pipe. Since the end of is preferably 30 ° based on the roller, the winding is started in the case of the present invention with the material being wound inclined toward the roller of the conveying conveyor from the beginning.

In addition, as shown in Fig. 3, the rotating body 36 is supported by bearing units 42 on both sides of the frame 34, and the driven gear 44 provided on the outer edge portion therebetween is located on the upper side of the apparatus frame. The drive gear 46 driven as the motor 48 is interrupted.

Accordingly, when the motor 48 is driven, the head-pipe 32 fixed to the rotating body 36 and the bracket 36a of the front end thereof in a curved state by a u-bend or the like is integrally formed by the rotation of the gears. The hot rolled material 10, which is driven to rotate in a rotary furnace and eventually ejected through the pipe end 32a, is continuously wound in the form of a coil.

Accordingly, the head-pipe 32 of the laying-head 30 of the wire winding apparatus of the present invention performs winding of the rolled material 10 through spinning which is continuously driven in rotation.

On the other hand, as described above, the diameter of the raw material wound using such a laying-head 30 is approximately 0.55 mm to 11 mm in small diameter.

At this time, preferably, in the material winding apparatus 1 of the present invention, the end 32a of the head pipe of the laying head 30 is attached to the frame of the laying head 30. It extends to the end line 38a.

However, in the apparatus 1 of the present invention, the material 10 wound up through the head-pipe 32 of the laying-head 30 is more rapidly conveyed than the conventional laying-head 130 of FIG. Since it falls on the roller 52 of the 50, maintaining the roller rotational speed as in the past will eventually increase the degree of integration of the wire coil (that is, the degree of falling onto the roller while overlapping the wound material 10 is higher than before). In this case, as the wound materials overlap, the material cooling becomes more difficult.

Accordingly, in the wire winding apparatus 1 of the present invention, the transfer conveyor 50 includes a sensor means 70 for sensing the material 10 wound and falling from the laying head, and the sensor means 70. Is connected to the device control unit (C) associated with the roller drive unit 54 of the conveying conveyor is configured to control the rotational speed of the rollers of the conveying conveyor when the material falls.

As a result, as shown in Fig. 3, in the wire winding device 1 of the present invention, the material is blown up and wound up in the head-pipe 32 having improved the spin structure of the material so that the first material is the roller 52 of the transfer conveyor 50. When falling to the sensor means 70 detects this to control the operation of the roller drive unit 54, that is, the roller drive motor through the device control unit (C) to increase the rotational speed of the rollers than the initial drive.

That is, in the state in which the rollers 52 are initially driven before the wire winding is performed, when the actual wound material 10 falls on the roller, the rotation speed of the roller is increased to reduce the drop time, but the gap between the coils of the wound material coil is reduced. Is to make adjustments.

At this time, as shown in Figure 3, in the apparatus of the present invention, the sensor means 70 is installed two sensors (one can be a light-emitting and light-receiving sensor), one on each side side of the roller of the material falling of the rollers of the transfer conveyor. To detect the roller fall of the wound material.

Therefore, the apparatus of the present invention, after winding in the laying head 30, the fall time from the conveying conveyor 50 to the roller is reduced as much as possible so that the winding shape of the wire rod, that is, the coil shape is uniform, while driving the roller rotation of the conveying conveyor Silver will increase when the material falls to lower the degree of integration of the dropped material will enable optimal wire winding.

Next, the wire winding step of the present invention is summarized as follows based on FIGS. 3 and 4.

First, as shown in FIG. 4, the wire winding step of the present invention may incline the material 10 toward the conveying conveyor through the head-pipe 32 of the laying head 30, that is, 45 ° from the conveying conveyor 50. Ejecting to within a coil shape (S3), detecting the falling of the material wound through the head-pipe of the laying head to the conveying conveyor (S4), and the conveying conveyor driven in the initial driving state The rollers may be configured to control the rotational speed of the fall of the wound material (S5).

Therefore, in step S3, the material 10 is wound within a range of 45 ° from the transfer conveyor (the roller plane on which the material falls), preferably around 30 °, and the material 10 is blown up and wound up. 2 is dropped and conveyed onto the roller 52 of the transfer conveyor 50 as soon as possible unlike the conventional art of FIG. 2.

Next, as described above, in step S4 detects in real time whether the wound material 10 falls on the roller of the transfer conveyor 50 in real time, the moment the material wound in the step S5 falls on the roller for the first time, it is detected One sensor means 70 rotates the rollers at an appropriate rotational speed according to the steel grade or diameter of the material, as described in detail below, through the roller drive unit 54, i. Do not become.

At this time, the head-pipe end 32a of the laying head is preferably positioned as close to the conveying conveyor as possible to shorten the roller fall time of the wound material.

Therefore, in the step S4, 5, it detects the fall of the material wound through the sensor means 70 provided in the conveying conveyor, and the rotational speed of the rollers through the roller control unit and the device control unit connected to the sensor Is increased above the initial speed to adjust the transfer conveyor drop density of the wound material.

At this time, before the material winding step (S3) through the laying-head, the diameter or steel type related data of the material is first input to the apparatus control unit (C) (S1), and the rollers 52 of the conveying conveyor are initially driven (S2). Adjust to.

On the other hand, the roller rotational speed of such a conveying conveyor 50 is preferably controlled based on the steel type of the material 10, for example, mild steel, hard steel and general steel.

In addition, the roller rotational speed of the transfer conveyor 50 may be adjusted according to the diameter of the material, or the sensor means 70 may detect the fall time between the rings when the wound material falls, and control it based on this.

Meanwhile, referring to FIG. 2 and as shown in FIG. 3, the conveying conveyor 50 is divided into a # 12 zone from a # 1 zone in which the initial material falls.

Therefore, in the wire winding method of the present invention, the drop time of the wound material 10 falling onto the roller of the conveying conveyor is different from the conventional one, so that the coil integration rate is lowered. It is necessary to adjust the speed of the 52) to the speed of the falling material, which will be more than the initial drive speed of the roller.

And, as described above, the driving of such a roller needs to be adjusted differently according to the diameter and steel grade of the material.

For example, the dropping time of the conveying conveyor is different for materials with a diameter of 10 mm and materials with a diameter of 5.5 mm.The smaller the diameter, the lower the weight and the faster it falls on the roller of the conveying conveyor. Should be.

By the way, a total of 25 rollers 52 are disposed in the # 1 zone of the transfer conveyor 50, and the raw material 10 wound on the 18th to 20th rollers generally falls.

Therefore, although the sensor means 70 is schematically illustrated in FIG. 3, two sensors may be installed, one on each side of the 19th roller.

The sensor means 70 detects whether the conveying conveyor falls of the first wound material 10, but may be used later to measure the falling time between the ring (unit coil) of the wound material.

For example, the following Table 1 shows that the roller rotational speed in the # 1 zone of the existing transfer conveyor is classified according to the code.

code A B C D E F G H I J Roller rotation speed (m / s) 0.6 0.55 0.55 0.5 0.5 0.43 0.35 0.25 0.25 0.29 code K L M N P Q R S T U Roller rotation speed (m / s) 0.29 0.2 0.2 0.2 0.2 0.18 0.14 0.13 0.43 0.7

At this time, the # 1 zone (entry zone just below the laying head) of the transfer conveyor 50 has a total length of 4.79 m, and 25 rollers 52 are installed, so that the roller rotation speed of the transfer conveyor is at least 0.13 for each code. In m / s up to 0.70 m / s, the blower (see 152 in FIG. 1) maintains 50% of all steel grades in zone # 1.

On the other hand, if the diameter of the wire rod is 11mm, it takes 0.16 seconds to make one ring, and it takes about 0.2 seconds to fall on the roller of the transfer conveyor.

Thus, in the case of the present invention, since the material ejection angle of the head-pipe 32 is adjusted from the existing 80 ° to 30 °, the time taken to fall on the roller 52 of the transfer conveyor is almost the same as the time that the ring is generated. It is reduced from 0.2 seconds to 0.16 seconds, which is obtained when the sensor calculates the ring-to-ring detection time.

Accordingly, the conventional rotational speed of 0.204 m / s (when the motor power is 200 RPM) = (200/60 seconds) × 0.195 (Gear ratio) × 3.141593 × 0.1 m (diameter of the roller) = 0.204 m / If the roller was rotated at a speed of s), in the present invention, the roller should be increased and rotated at a speed of about 0.254 m / s to prevent over-integration of the coils.

Therefore, in the wire rod winding method of the present invention, the rotational speed of the rollers according to the diameter of the wire rod (this diameter determines the weight of the unit ring and affects the time falling to the roller of the conveying conveyor after ejecting the head pipe). It is necessary to control.

For example, as in S4 'of FIG. 4, when the fall time difference between rings is small (0.15 sec or less), since the coil integration ratio is high, the rotation speed of a roller etc. raises 0.1-0.5 m / s.

That is, the rotational speed of the roller can be added or decreased 0.1 ~ 0.5 m / s according to the sensor detection time difference.

For example, the detection time and speed change between the rings of the sensor (all weight except 6.5mm without the difference in the fall time between the ring is the lightest weight: 6.5 ~ 11mm) is 0.15 seconds or more, and maintain the speed of the existing code of Table 1, The roller rotation speed is increased by 0.03 m / s in the range of 1.10 to 0.15 seconds, and 0.05 m / s in the case of 0.10 seconds or less.

On the other hand, the rotational speed of such a roller needs to be adjusted according to the steel grade, for example, in Table 1, the code A-K; light steel, L-S; It can be divided into mild steel and general steel.

That is, in the case of mild steel, the coil form is easily changed, and in the case of hard steel, the carbon content is large and bounced. Therefore, it is preferable to control the rotational speed of the feed roller according to the steel type.

As a result, it is necessary to set and control the rotational speed of the roller in consideration of the inter-ring time of the wound wire rod based on the code of the steel grade.

That is, just before the material is wound, once the rotational drive of the rollers 52 is maintained as the initial drive, and when it is detected that the material falls on the roller for the first time, since the drop time between rings as a whole is shorter in the present invention than the conventional roller, It will be necessary to increase the rotation speed of the.

Then, as in step S6 of Figure 4, the wound material coil 10 is integrated in the integrator through a transfer conveyor.

As a result, in the present invention, the transfer conveyor falling time of the wound material is shortened as compared with the conventional one, and the cause of the coil shape (circular formation) is eliminated, and the dropping of the conveyor is reduced. By controlling the roller rotation speed, it prevents over-integration (because the rollers are driven at the same rotation speed, because the material with shortened drop time overlaps excessively) to maintain overall wire quality.

To this end, the roller rotational speed is controlled in consideration of the steel grade and diameter of the wire rod coil and the falling time between the rings.

While the invention has been shown and described in connection with specific embodiments so far, it will be appreciated that the invention can be modified and modified in various ways 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.

1 is a schematic diagram showing a winding process of a conventional small diameter wire rod.

Figure 2 is a block diagram showing a laying-head which is a conventional wire winding device

Figure 3 is a block diagram showing a wire winding apparatus according to the present invention

Figure 4 is a process flow diagram illustrating the wire winding step of the present invention

Explanation of symbols on the main parts of the drawings

Wire rod winding device 10 ...

30 .... Laying-head 32 .... Head-pipe

34 .. Laying-head frame 36 .... Rotating body

50 .... conveying conveyor 52 .... roller

70 .... Sensor means

Claims (7)

A laying-head provided to wind up the workpiece, including a head-pipe which ejects the wound material obliquely toward the transfer conveyor; And, A conveying conveyor having rollers for conveying a material falling in the form of a coil to one side of the laying head; Wire rod winding device configured to include. The method of claim 1, The head-pipe is rotatably driven by being fixed to a bracket attached to the rotating body through a rotating body rotatably installed on the laying-head frame, and ejecting the material within 45 ° from the conveying conveyor in the form of a coil. Wire winding device characterized in that it is provided so as to wind up. The method according to claim 1 or 2, And the end of the head-pipe is positioned adjacent to the conveying conveyor to the end of the cover body attached to the frame of the laying head. The method of claim 1, The conveying conveyor further comprises a sensor means provided to detect the material wound off the laying-head or to detect the falling time between the ring material, The sensor means is connected to the device control unit associated with the roller drive unit of the conveying conveyor wire winding device characterized in that the rollers of the conveying conveyor is configured to control the rotational speed when the material falls. Winding the material obliquely toward the conveying conveyor through the head-pipe of the laying-head and winding it in the form of a coil; And, Controlling the roller rotation speed of the conveying conveyor when the conveying conveyor falls of the wound material; Wire rod winding method configured to include. The method of claim 5, The head-pipe of the laying-head is provided to eject the material within 45 ° from the conveying conveyor while its end is positioned as close to the conveying conveyor as possible to shorten the roller fall time of the wound material, The rotation speed of the rollers is controlled by detecting the roller falling of the rolled material and the falling time of the ring of the rolled material through the sensor means provided in the conveying conveyor to control the roller drive unit of the conveying conveyor connected to the apparatus control unit associated with the sensor means. Wire winding method characterized in that. The method of claim 6, wherein the diameter of the material and the steel grade data is preset in the device control unit is further controlled based on the rotational speed of the roller, Steel material winding method of the material is characterized in that divided into mild steel, hard steel and general steel.

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