WO2018084643A1

WO2018084643A1 - Apparatus for straightening coiled rebar for construction

Info

Publication number: WO2018084643A1
Application number: PCT/KR2017/012428
Authority: WO
Inventors: 권용성
Original assignee: (주)미르철강
Priority date: 2016-11-03
Filing date: 2017-11-03
Publication date: 2018-05-11
Also published as: KR101720283B1

Abstract

The apparatus for straightening a coiled rebar for construction, according to the present invention, comprises: an uncoiling reel for uncoiling a coiled rebar, which is wound in the shape of a coil, into a strand of rebar; an injection roller for moving at least one strand of rebar provided from the uncoiling reel; a straightening roller module comprising a plurality of rollers for straightening the strand of rebar, which has been moved through the injection roller, into a linear shape by rotating and pressing the strand of rebar from the top and bottom; a cutting module for cutting the straightened strand of rebar into a predetermined length; a rebar shelf for storing the cut strand of rebar; and a controller for controlling the rotation speed of the roller.

Description

Straightening Forming Device for Construction Coil Rebar

The present invention is a straightening molding apparatus of the coil reinforcing for construction, in more detail, it is possible to expand the utilization of the reinforcing bar produced in the form of a coil in a straight line, automatically grasping the type of the coil reinforcement, and the roller for straightening it The present invention relates to a straightening molding apparatus that is automatically changed to rotation speed and driven.

Reinforcing bars are used for transport problems and are used as regular dimensions up to 18 m, mainly up to 12 m long. Regular reinforcing bars transported to the rebar processing plant or construction site are cut to the required length according to the degree of reinforcement, and in this process, stiff bars are inevitably generated. Various efforts have been made to reduce reinforcing bar reinforcement, such as rebar reinforcement detail drawing and rebar processing optimization.

Reinforcing bar in coils are produced in the form of coils and used straight in a rebar processing plant. Coil reinforcement saves reinforcing material costs because there is little loss of reinforcing bar, and productivity is improved because transportation for reinforcing bar is drastically reduced in factory processing. In recent years, interest in coil rebars has increased due to higher processing rates of rebars and higher material and labor costs.

In order to use coil rebar, however, straightening is necessary. Reinforcing bars have nodes for integrating with concrete, and since the bars are pressed in the straightening process, the shape of the bars greatly affects the reinforcement of the steel. In addition, the shape of the node to improve the workability also affects the adhesion performance between the reinforcing bar and concrete, and also the damage of the node generated in the straightening process also affects the adhesion performance, so the straightening device and the process are very important technologies.

Regarding such a straightening molding apparatus, the following technique is disclosed.

Korean Registered Patent No. 1369689, "Separetta manufacturing apparatus for formwork and the Separetta manufactured by the apparatus", is provided with a feed roller 11 to move the material (B) wound on the uncoiler (A). Part 10; It is installed close to the downstream of the input portion 10, the gradual angle of the protrusions 23 and the corresponding groove 24 to enable stable bending through the gradual pressing force on the upper and lower portions of the material (B) to be conveyed A bent part 20 having upper and lower pressure rollers 21 and 22 interposed therebetween so that a curved surface S1 is formed on the material B; A molding press 30 having a bending surface S1 formed by cutting a part of the curved surface S1 at a set position of the material B to be bent on the curved portion 20; And a cutter 42 which forms the insertion piece S3 while cutting the material B into the insertion pin S2 of the material B downstream of the molding press 30, and an elastic material on the upper portion. The material (B) by the press part (41) and the press piece (43) (43 ') through the press piece (43) 43' which pressurizes (B) and discharges the completed Separetta (S). It relates to a Separetta manufacturing apparatus comprising a; cutting press 40 having a die 45 through the bending projections 46 so that the bent surface (S4) is formed to accommodate.

In the case of such a manufacturing apparatus, it is possible to manufacture a large amount of Separetta in a short time through a continuous manufacturing process, but only a single type of reinforcing bar can be applied, so if you want to use a different type of reinforcing bar, the problem caused by the difference in size Occurs.

Next, Korea Patent Registration No. 0155249 “Roller Forming Machine for Automobile Snow Chain” supplies roll-type iron pieces to a cutting roller with a pair of upper and lower pairs, and continuously cuts iron pieces of a certain length so that a central point is connected. In the forming roller is formed into a U-shape to move, and in the forming roller installed at the rear is formed to be a circular ring is moved. In this way, the connecting portion of the iron piece of a certain length falls in the process of forming the roller. In this way, the rollers of a certain length forming process are prevented from being separated between the spacing of the forming rollers, and the guide rods and the long guide rods are installed at the front of the roller forming rollers so that the guide rods penetrate the forming grooves of several rear forming rollers. The roller forming apparatus is made to be manufactured with little damage in the manufacturing process of the roller because it is discharged to the rear along the long guide rod while being prevented from being separated between the spacing of the forming roller in the process of forming a circular ring by exposing to the rear. It is about.

Such conventional roller forming apparatus is similar to supplying and unrolling iron pieces in a rolled form to the rollers, but there is a problem in applying them to our technology since the iron pieces are folded and formed into a U shape.

Therefore, it is necessary to develop a straightening molding apparatus that can utilize the coils produced in the form of coils in a straight line.

SUMMARY OF THE INVENTION The present invention has been made to overcome the problems of the above technology, and a main object of the present invention is to provide a straightening molding apparatus capable of performing a straightening process for all the coil bars having various physical properties in one molding apparatus.

Another object of the present invention is to provide a configuration to automatically control the rotation speed of the roller to perform the straightening by automatically recognizing the coil reinforcement from the vise unit for providing the coil reinforcement to the roller.

Still another object of the present invention is to include a separate vibration means in the rotating means located in the vise, to provide a configuration that can facilitate the reinforcement of the reinforcing strands through the fine vibration.

In order to achieve the above object, according to the present invention, a straightening molding apparatus for a coil reinforcing bar, the coil coil wound in the form of a decoil reel to unwind the reinforcing bar; An input roller for moving at least one or more reinforcing bar strands provided from the decoil reel; A straightening roller module comprising a plurality of rollers formed to be unfolded in a straight line by rotationally pressing the reinforcing bar strands moved through the feed rollers at upper and lower portions thereof; Cutting module for cutting the straightened reinforcing bar strands to a predetermined length; Rebar shelf for storing the cut reinforcing strands; And a controller for controlling the rotational speed of the roller.

Further, the straightening roller module is a plurality of straightening roller portion for extending the coil reinforcement in a linear form while rotating the upper surface of the reinforcing bar strands, the lower surface of the reinforcing strands are located below the plurality of straightening roller portion The rotary pressing is characterized in that it is configured to include at least one or more press rollers composed of one support roller portion.

In addition, the feed roller, the reinforcing bar insertion portion is formed, the insertion groove is inserted into which at least one or more reinforcing bar provided from the decoil reel, and the reinforcing steel bar passed through the reinforcing bar insertion portion to supply to the straightening roller module It is characterized by consisting of a vise unit.

In addition, the vise part is formed so that the rotating means is exposed toward the inside of the feeding roller in a state in which a plurality of rotating means capable of lifting up and down is provided to assist the rotation through the rotation of the rotating means when the reinforcing bar is inserted. Characterized in that it further comprises an input device.

In addition, the rotation input device is composed of a pair of input plate respectively located on the left and right sides of the inner peripheral surface of the vise, the input plate, the support piece having a support tip formed to expose the rotating means on one side of the surface; It is characterized in that it comprises a lifting rod for lifting up and down by elastic force in the form of supporting the lower surface of the rotating means.

In addition, the support tip is formed convexly protruding downward with a radius of curvature smaller than the radius of curvature of the outer circumferential surface of the reinforcing bar strands in a state corresponding to the width of the reinforcing bar strands, the end is provided with the rotating means It is characterized by one.

In addition, the elevating rod is characterized in that it further comprises an extension cap consisting of an input portion into which the rotation means is inserted, and an elevating member having an elastic force in a direction opposed to the input portion.

In addition, an inner side of the input part, an elastic layer is further formed by laminating an elastic material having a greater elastic force than the elevating member, while the reinforcing bar strands are inserted to cushion the impact through the elastic layer, and the lifting rod It can be assisted to be restored to the original position.

In addition, a vibration hole including a vibrating body is included in the rotating means, and an upper surface of the elastic layer is formed by stacking a buffer layer made of a buffer material so that vibration generated from the rotating means is not transmitted to the elevating member. It is characterized by one.

In addition, the one side of the rotation input device, the elevating sensor for measuring the elevating degree of the rotary means further includes, the controller, the rotational speed of the roller in accordance with the elevating detection signal measured by the elevating sensor It characterized in that it comprises a roller speed control unit for controlling.

Finally, one side of the feed roller, the inflow detection sensor for measuring the passing speed of the reinforcing strands is further included, the decoil reel, standing up to a predetermined length, the coil reinforcing bar is fixed by fitting the coiled reinforcement And a rotating driver for rotating the coil reinforcing part, and the controller includes a decoil reel controller for controlling the rotational speed of the rotating driver according to the inflow detection signal measured by the inflow detection sensor. It features.

According to the straightening molding apparatus for coil rebar for construction according to the present invention,

1) By designating the rotational speed of the roller according to the properties of the coil rebars, the coil rebars of various physical properties can be straightened with one molding machine,

2) It can automatically determine the thickness and width of coil reinforcement so that the rotation speed of roller can be automatically designated.

3) The vibration means is included in the rotation means, and by vibrating the coil reinforcement, it removes foreign substances on the surface and at the same time provides the effect of maintaining the traveling direction of the reinforcing strand as it is through the fine vibration.

1 is a conceptual view showing the basic configuration of the straightening device for forming a coil rebar for construction of the present invention.

Figure 2 is an enlarged view showing a straightening roller module of the present invention.

Figure 3 is a perspective view showing an embodiment of the vise portion of the present invention.

Figure 4 is a perspective view showing one embodiment of the lifting rod of the present invention.

5 is a perspective view showing an interlock configuration with the decoil reel of the present invention.

The present invention provides a decoil reel for unwinding the reinforcing coil reinforcing coil reinforcing coils; An input roller for moving at least one or more reinforcing bar strands provided from the decoil reel; A straightening roller module comprising a plurality of rollers formed to be unfolded in a straight line by rotationally pressing the reinforcing bar strands moved through the feed rollers at upper and lower portions thereof; Cutting module for cutting the straightened reinforcing bar strands to a predetermined length; Rebar shelf for storing the cut reinforcing strands; The controller is configured to control the rotational speed of the roller to the best form for the practice of the invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. The accompanying drawings are not drawn to scale, and like reference numerals in each of the drawings refer to like elements.

1 is a conceptual diagram showing the basic configuration of the straightening molding apparatus of the coil reinforcing steel 100 for construction of the present invention.

Referring to Figure 1, the straightening forming apparatus of the construction of the coil reinforcing bar 100 of the present invention, decoil reel 200 for unwinding the coil reinforcing coil 100 wound in the form of a coil with a reinforcing bar (110); An input roller 300 for moving at least one or more reinforcing bar strands 110 provided from the decoil reel 200; Straightening roller module 400 consisting of a plurality of rollers to be formed to be unfolded in a straight line by pressing the reinforcing bar (110) moved through the feed roller 300 from the top and bottom; Cutting module 500 for cutting the straightened reinforcing bar strand 110 to a predetermined length; Rebar lathe 600 for storing the cut reinforcing strands 110; And a controller 700 for controlling the rotational speed of the roller.

First, the decoil reel 200 serves to unwind the coil reinforcement 100 wound in a coil form into the reinforcing bar strand 110. Next, the input roller 300 for moving the one or more reinforcing bar strands 110 released through the decoil reel 200 in a predetermined direction is positioned, and the reinforcing bar strands 110 passing through the input roller 300 rotate in the upper and lower portions. By pressing, the curved rebar strand 110 is moved to a straightening roller module 400 composed of a plurality of rollers that are formed to unfold in a straight line shape.

After passing through the straightening roller module 400, the cutting module 500 for cutting the straightened reinforcing bar strand 110 to a predetermined length, and the reinforcing bar 600 for storing the cut reinforcing bar strand 110 is located. This configuration is configured to cut the coil reinforcement 100 to the size necessary to utilize the reinforcing strands 110 in the construction after loosening the reinforcing strands (110).

Finally, the controller 700 is to control the rotational speed of the roller, the control criteria of the rotational speed is predetermined according to the properties such as the weight, thickness, diameter, etc. of the coil reinforcement 100 (reinforcing rod 110) provided In principle, the rotation speed is controlled based on the control value. For example, when a coil reinforcement 100 having a weight and a b thickness c diameter is provided, if the rotation speed control value specified for the coil reinforcement 100 is d, the roller is rotated at the speed of d.

2 is an enlarged view of the straightening roller module 400 of the present invention.

Looking at the straightening roller module 400 in more detail as follows.

The straightening roller module 400 is a plurality of straightening roller portion 410 and the plurality of straightening roller portion 410 to unfold the coil reinforcement 100 in a straight line while rotating the upper surface of the reinforcing bar (110) It is configured to include at least one or more of the press roller 430 is composed of one support roller portion 420 is located below the rotational pressure on the lower surface of the reinforcing bar (110).

First, the straightening roller part 410 is a roller that rotates on the upper surface of the reinforcing strand 110, and pressurizes the upper surface of the reinforcing strand 110 because pressure is applied to the lower part at the same time as the rotation. At this time, it is preferable that at least two straightening rollers 410 are included, because the rollers are located at the upper side, so that when a single configuration is formed, it is difficult to properly transmit the force. Accordingly, the straightening roller portion 410 is preferably composed of a plurality of rollers, even if a little smaller than a single roller configuration of a large size.

Next, the supporting roller part 420 rotates the lower surface of the reinforcing bar strand 110 in the direction opposite to the straightening roller part 410. Since the pressure in the lower part does not need a plurality of rollers due to the influence of gravity, the single support roller part 420 of a large size and the plurality of correction roller parts 410 of a small size are composed of a press roller 430 as one set. By applying pressure to the reinforcing bar (110) is to straighten.

Further, the feed roller 300 is a reinforcing bar insertion portion 310 is formed with an insertion groove 320 is inserted into the at least one or more reinforcing bar strands 110 provided from the decoil reel 200, and the reinforcing bar insertion portion 310 It is further configured to further include a vise 330 for fixing and rotating the passed reinforcing strand 110 to supply to the straightening roller module 400.

Feeding roller 300 is a portion that is first inserted into the coil reinforcing coil 100 wound in a coil form in the decoil reel 200 to supply to the reinforcing strand (110). Accordingly, in the case of the reinforcing bar insertion part 310, an insertion hole corresponding to a cross section of the coil reinforcement 100 is generally formed. If necessary, a plurality of insertion holes are formed in a line, or a plurality of insertion holes are formed in a specific pattern. A method of forming a large insertion hole through which several coil reinforcements 100 may be supplied together may be utilized.

3 is a perspective view showing an embodiment of the vise 330 of the present invention, Figure 4 is a perspective view showing an embodiment of the lifting rod 336 of the present invention.

In the straightening molding apparatus, the vise part for final calibration of the insertion position so that the reinforcing bar strand 110 passing through the reinforcing rod insertion part 310 can be moved to the correct position of the press roller 430 before being fed to the press roller 430. 330 is further included. In the case of the vise portion 330 is generally composed of two or more facing rollers to pass the reinforcing strands 110 between the rollers to correct the direction and position of the reinforcing strands 110.

In this case, the vise part 330 is formed so that the rotating means 333 is exposed toward the inside of the feeding roller 300 in a state in which a plurality of rotating means 333 that can be moved up and down is built in the rebar strand. It may be configured to further include a rotation input device 331 to assist through the rotation of the rotating means 333 at the time of the 110.

The rotary feeding device 331 can be said to be a case with a bearing simply speaking. The rotating means 333 includes a separate elastic body or elastic means, and is capable of lifting up and down. When the rotation injection device 331 is formed on the inner circumferential surface of the vise 330, the bearing when the reinforcing bar strands 110 are inserted through the rotating means 333 which can be moved up and down built in the rotation injection device 331. The lifting and lowering not only facilitates the initial input of the reinforcing bar strands 110, but also facilitates the continuous feeding through the rotation of the rotating means 333 even after the initial feeding of the reinforcing bar strands 110.

Here, the rotation input device 331 may be divided into a pair of input plate 332 respectively located on the left and right sides of the inner circumferential surface of the vise 330, the input plate 332 is rotated on one side of the surface And a support piece 334 having a support tip 335 formed to expose the means 333, and a lifting rod 336 that is lifted up and down by an elastic force in a form supporting the lower surface of the rotating means 333. It is configured by.

The input plate 332 is divided because it is preferably composed of at least two or more for the purpose of the vise, most preferably one input plate 332 is located on the left and right each in a paired state left and right It is good to control the input position of the reinforcing bar strands 110 by pressing each. However, the left and right installation is the most ideal method, but this is not necessarily to be observed, and furthermore, it is also possible to install up and down or to configure the input plate 332 three or more.

The input plate 332 is a support piece 334 having a support tip 335 formed to expose the rotating means 333 on one side of the surface, and by the elastic force in the form of supporting the lower surface of the rotating means 333. The lifting rod 336 is configured to move up and down. That is, the support piece 334 serves as a kind of case, and the support tip 335 is formed at a portion of the surface and the rebar strand 110 is inserted, and the support tip 335 is a rotation means ( 333 is formed to be exposed to be inserted through the rotation means 333 when the reinforcing bar strand 110 is inserted. Further, the lifting rod 336 supporting the lower surface of the rotating means 333 is further included below the rotating means 333. The lifting rod 336 may be an elastic body having elasticity, or an elastic supporting means such as a spring may be utilized.

Herein, the shape of the support tip portion 335 will be described in more detail, with the curvature radius smaller than the curvature radius of the outer surface of the reinforcing bar strands 110 in a state having a width corresponding to the width of the reinforcing bar strands 110. Protrudingly formed convex, the end is characterized in that the rotating means 333 is located. That is, looking at the support tip 335, it is formed concave in the form of 'U', the rotating means 333 is located at both ends of the end and the highest position. However, although the support tip 335 has a width corresponding to the width of the reinforcing bar 110, the radius of curvature is smaller than the reinforcing bar 110, even if a pair of support tip 335 is facing two supports The phenomenon that the tip portion 335 overlaps or bumps and does not properly support the reinforcing bar strand 110 cannot occur, and furthermore, the rotating means 333 is located at an end thereof, and the reinforcing bar 110 through the rotating means 333. In addition to facilitating the introduction of), by using the elevating action and the elastic force of the rotating means 333 it is possible to control so that the reinforcing strand 110 is introduced into the same position continuously.

Returning to the foregoing description, the elevating rod 336 means a member having an elastic force that supports the lower surface of the rotating means 333. Looking at the elevating rod 336 in detail, an input portion into which the rotating means 333 is inserted is provided. 341 and an extension cap 340 composed of an elevating member 342 having an elastic force in a direction opposed to the input part 341.

That is, the extension cap 340 is an injection portion 341 is inserted into the rotating means 333 in the upper portion, the lifting member 342 having an elastic force is located in the lower portion. First, the input part 341 serves to prevent the rotation means 333 from being separated from the elevating rod 336 due to the characteristics of the elevating rod 336 supporting the lower surface of the rotating means 333. The elevating member 342 is configured to allow elevating by giving an elastic force. Furthermore, an elastic layer 343 in which an elastic material having greater elasticity than that of the elevating member 342 may be stacked inside the input portion 341, and the reinforcing strand 110 may be formed through the elastic layer 343. The shock generated while being inserted and at the same time having the property to return to the original form as the elevating member 342, so as to apply a continuous pressure toward the reinforcing bar (110) with the elevating rod (336) reinforcing bar (110) It will help to support the side of).

Here, once more, the vibrating hole 344 including the vibrating body may be further included in the rotating means 333. In the case of the vibrator 344 to generate a vibration, by adding a configuration capable of inducing or providing power to the surroundings in the state of including the vibration means such as a motor in the vibrator 344, the vibration as needed This is what happens. The vibrating hole 344 is preferably used for generating an ultrasonic wave, because the reinforcing bar 110 is configured to pass through the rotating means 333 unconditionally when the reinforcing bar 110 is introduced into the roller, and thus, the vibrating hole 344 is provided. When the ultrasonic wave is generated, the ultrasonic wave acts directly on the reinforcing strand 110. When the ultrasonic wave is shot on the reinforcing strand 110, the reinforcing strand 110 because it can shake off foreign substances such as dust attached to the surface of the reinforcing strand 110 and at the same time continuously give a certain level of vibration to the reinforcing strand 110. ) Can assist the fixing so that the roller can be put in a certain height and position inside the roller.

However, the transmission of the generated vibration (ultrasound) directly to the elevating member 342 has a high probability of adversely affecting the elevating of the elevating member 342. Accordingly, by forming a buffer layer 345 made of a buffer material on the upper surface of the elastic layer 343 so that vibration is not transmitted to the elevating member 342, the physical properties of the elastic layer 343 and the physical properties of the buffer layer 345 are simultaneously provided. By doing so, not only the support of the reinforcing strand 110 is prevented from transmitting unnecessary vibrations.

Back to the rotation input device 331, one side of the rotation input device 331 further includes a lifting sensor 350 for measuring the degree of lifting of the rotating means 333, the controller 700 is It may be configured to include a roller speed control unit 710 for controlling the rotational speed of the roller in accordance with the lift detection signal measured by the lift sensor 350.

In the above description, the controller 700 is said to control the rotational speed of the roller. At this time, if the rotational speed of the roller is changed according to the measured elevation detection signal by measuring the elevation of the rotation means 333, In one molding apparatus, the coil reinforcement 100 having various kinds of physical properties may be linearly formed. That is, the physical properties of the coil reinforcement 100 and the rotational speed value of the roller required for the straightening is stored in advance, while the reinforcing strand 110 is put into the rotation means 333 that depends on the thickness of the reinforcing strand 110 The degree of descent is measured by the elevating sensor 350 to control by changing the rotational speed of the pre-stored roller according to the measured elevating detection signal.

5 is a perspective view showing an interlock configuration with the decoil reel 200 of the present invention.

As another configuration, one side of the input roller 300 may be configured to further include an inflow detection sensor 360 for measuring the passing speed of the reinforcing bar strand (110). That is, it is to measure the speed at which the reinforcing bar 110 is injected from the feeding roller (300). Accordingly, the decoil reel 200 is erected to a predetermined length and the coil reinforcement fixing portion 210 for fitting and fixing the coil reinforcement 100 and the rotary driving unit 220 for rotating the coil reinforcing fixing portion 210. The controller 700 further includes a decoil reel controller 720 for controlling the rotational speed of the rotation driving unit 220 according to the inflow detection signal measured by the inflow detection sensor 360. That is, not only to control the rotational speed of the roller in the controller 700, but also to further control the speed of inserting the reinforcing bar strands 110, if you want to reduce the input speed of the rotary drive unit of the decoil reel (200) If you want to reduce the speed of 220, and increase the input speed can increase the speed of the rotary drive unit 220 of the decoil reel (200). The existing configuration controls the speed of introducing the reinforcing bar strands 110 through the rotation of the roller, but by further controlling the rotational speed of the decoil reel 200 to release the coil reinforcement 100 to the reinforcing bar strands 110. By controlling the change in the speed that can occur when the coil reinforcement 100 is few days at this time through this configuration it is possible to provide the reinforcing strands 110 of the same quality from the first straightening process to the last straightening process.

As described so far, the configuration and operation of the straightening device for constructing coil reinforcing bars according to the present invention have been expressed in the above descriptions and drawings, but these are merely examples, and the spirit of the present invention is not limited to the above descriptions and drawings. Of course, various changes and modifications are possible without departing from the spirit of the present invention.

The present invention is characterized in that the reinforcing bars used in a variety of industrial fields, such as building materials, there is a possibility of industrial use.

Claims

In the straightening molding apparatus of coil reinforcing bars for construction,

A decoil reel for unwinding the coil reinforcing coils into reinforcing strands;

An input roller for moving at least one or more reinforcing bar strands provided from the decoil reel;

A straightening roller module comprising a plurality of rollers formed to be unfolded in a straight line by rotationally pressing the reinforcing bar strands moved through the feed rollers at upper and lower portions thereof;

Cutting module for cutting the straightened reinforcing bar strands to a predetermined length;

Rebar shelf for storing the cut reinforcing strands;

Controller for controlling the rotational speed of the roller; characterized in that consisting of, the straightening device of the coil reinforcing for construction.
The method of claim 1,

The straightening roller module,

A plurality of straightening roller parts for unfolding the coil rebar in a straight line while rotationally pressing the upper surface of the reinforcing bar strands;

And at least one or more press rollers which are positioned below the plurality of straightening roller parts and constituted by one supporting roller part for rotationally pressing the lower surface of the reinforcing bar strands.
The method of claim 1,

The feed roller,

A reinforcing bar insertion part including an insertion groove into which at least one reinforcing bar strand provided from the decoil reel is inserted;

And a vise portion for fixing and rotating the reinforcing bar strands passing through the reinforcing rod insertion portion to supply the straightening roller module.
The method of claim 3, wherein

The vise unit,

The rotating means is formed so as to be exposed toward the inside of the feed roller in a state of embedding a plurality of rotating means capable of lifting up and down, further comprising a rotation injection device to assist through the rotation of the rotating means when the reinforcing bar strands; A straightening molding apparatus for coil reinforcing bars for construction.
The method of claim 4, wherein

The rotation injection device,

Consists of a pair of input plate respectively located on the left and right sides of the inner peripheral surface of the vise,

The input plate,

A support piece having a support tip formed to expose the rotating means on one surface thereof;

It characterized in that it comprises a lifting rod for lifting up and down by an elastic force in the form of supporting the lower surface of the rotating means, straightening forming apparatus of the coil reinforcing for construction.
The method of claim 5,

The support tip,

In the state having a width corresponding to the width of the reinforcing bar strands are formed convexly projected downward with a radius of curvature smaller than the radius of curvature of the outer circumferential surface of the reinforcing bar, characterized in that the end is provided with the rotating means, Straightening device for coil rebar.
The method of claim 5,

The lifting rod,

An injection unit into which the rotation means is inserted;

And an extension cap further comprising an elevating member having an elastic force in a direction opposed to the input unit.
The method of claim 7, wherein

Inside the inlet,

An elastic layer in which an elastic material having a greater elastic force than the elevating member is laminated is further formed,

The reinforcing bar strands are inserted into the shock absorbing through the elastic layer and at the same time, the lifting rod is characterized in that the auxiliary rod to be restored to its original position, straightening forming apparatus for construction coil reinforcement.
The method of claim 8,

Inside the rotating means,

Vibration sphere including a vibrating body is included,

On the upper surface of the elastic layer,

And a buffer layer made of a cushioning material is laminated so that vibration generated from the rotating means is not transmitted to the elevating member.
The method of claim 4, wherein

On one side of the rotation injection device,

It further includes a lifting sensor for measuring the lifting degree of the rotating means,

The controller,

And a roller speed control unit for controlling the rotational speed of the roller according to the lifting detection signal measured by the lifting sensor.
The method of claim 3, wherein

On one side of the feed roller,

Further comprising an inflow detection sensor for measuring the passage speed of the reinforcing bar,

The decoil reel,

A coil reinforcing fixing part which is fixed to a predetermined length by fitting and coupling the coil reinforcing bars,

Rotating drive unit for rotating the coil reinforcement,

The controller,

And a decoil reel control unit for controlling the rotational speed of the rotary drive unit according to the inflow detection signal measured by the inflow detection sensor.