KR20140131853A - Forming apparatus for connecting part of concrete reinforcements - Google Patents

Abstract

The present invention relates to an apparatus for processing a screw thread of a steel bar, which processes the screw thread in a connecting part of the steel bar with minimum movement and area through a movement of the steel bar and a screw thread processing part. The apparatus for processing a screw thread of a steel bar of the present invention comprises: a steel bar supply means (10) which supplies and supports steel bars; a steel bar feeding means (20) which clamps the steel bars supplied from the steel bar supply means and moves the same forward and backward; a screw thread processing part (A) which processes a screw thread to an end part of a steel bar fed by the steel bar feeding means; and a controller which controls so that a swaging process, a chamfering process, and a rolling process can be continued by automatically controlling the steel bar feeding means and the screw thread processing part (A).

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

The present invention relates to a screw threading apparatus for a reinforcing bar, and more particularly, to a screw threading apparatus for a reinforcing bar threading apparatus, and more particularly, to a screw threading apparatus for a reinforcing bar threading apparatus, The present invention relates to a screw threading apparatus for a reinforcing bar capable of machining a thread in a joint of a reinforcing bar in a minimum movement and an area.

The reinforced concrete structure is a structure in which the concrete is subjected to compressive force and the reinforcing steel is subjected to tensile force, and is formed by the combination of reinforcing steel and concrete. Since the concrete is installed and poured, the concrete can be integrally constructed. However, since the reinforcing bars must be constructed by connecting the regular products of a certain length, joints between the reinforcing bars and the reinforcing bars are inevitable. Therefore, in order for the reinforcing bars to sufficiently resist the required tensile force, the reinforcing bars and the reinforcing bars must be tightly connected to each other. Normally, overlapping joints, pressure welding, or reinforcing bars are used.

The overlapping joint is advantageous in that the reinforcing bars and reinforcing bars are piled up over the required length and bundled with bundling lines. However, when the diameter of the reinforcing bar is large, there is a problem of structural strength due to eccentricity, and when the concrete member is thin There is a problem that the cross section of the form is narrowed due to the superimposed reinforcing bars, so that the concrete is not easily poured. In addition, it is difficult to control the length of rebar joints in the field, which leads to the occurrence of defects due to insolvency. In the case of large-diameter rebar, it is not possible to use rebar less than a certain length, And the like.

The method of reinforcing bars by pressure welding is a method in which ends of reinforcing bars and reinforcing bars are connected and heated, followed by pressing to form the ends integrally.

However, pressure welding is not easy to apply because it has many problems such as long working time, excessive cost, and risk of fire.

In order to solve the above problem, a method of mechanically coupling a reinforcing bar to a reinforcing bar has been devised. As a mechanical reinforcing bar joining method, there are a method of screwing a reinforcing bar directly, a method of joining a screw coupling, .

Considering the joining method of reinforcing bars among the mechanical reinforcing methods, it is widely used to join the reinforcing bars to the coupler by machining the threads directly. For this purpose, techniques for machining the threads of the reinforcing bars have been proposed.

BACKGROUND OF THE INVENTION [0002] A screw threading technique of a conventional steel bar is based on a swaging process, a beveling process, a threading process (cutting, etc.), and is usually performed manually.

In order to solve such a problem, an automation apparatus has been proposed. For example, Japanese Patent Application No. 10-1195689 discloses a conveying means, a swaging means, a surface processing means, and a rolling means, which are arranged in a row, and the reinforcing bars are conveyed by the conveying means sequentially, The threading means can be machined by threading the thread, but the swaging means, the face machining means and the rolling means are arranged in a line, requiring a large factory site, and if an error occurs during machining, There is a problem that it is difficult to take out the inserted reinforcing bars to the means.

Registration No. 10-1195789 Registration No. 10-0820184

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a method of manufacturing a thread- And to provide a screw threading device for a reinforcing bar capable of machining a thread in a joint of a reinforcing bar in an area.

A screw threading device for reinforcing bars according to the present invention comprises reinforcing bar supplying means for supplying and supporting reinforcing bars; A reinforcing bar feeding means for clamping and moving the reinforcing bar supplied from the reinforcing bar feeding means back and forth; A thread machining portion for machining a thread at an end of the reinforcing bar fed by the reinforcing bar feeding means; And a controller for automatically controlling the reinforcing bar feeding means and the thread machining portion to continuously control the swaging process, the chamfering process, and the rolling process, wherein the thread machining portion is provided at a front side of the reinforcing bars, A swinging means which is mounted so as to linearly reciprocate in the lateral direction and presses the end portion of the reinforcing bar clamped by the reinforcing bar feeding means toward the center to press the protruding rib formed on the surface of the reinforcing bar into a circular shape, Means for cutting the front end face of the joint portion of the reinforcing bars forged by the swaging means, the reinforcing bars being provided in front of the reinforcing bars in front and rear directions perpendicular to the reinforcing bars, Vertical and vertical directions orthogonal to the reinforcing bars and forward and backward linearly reciprocable A rolling means for rolling a screw thread on a joint portion of a reinforcing bar whose surface is uniformly machined by the surface cutting means; and a control means for controlling the swaging means, the surface cutting means and the rolling means, Wherein the moving means comprises a carrier on which the swaging means is mounted and which moves right and left through a guide means, a carrier which is mounted on the carrier in such a manner as to be able to move up and down via a guide means, And a lifting block which is mounted so that each of the rolling means can be moved back and forth independently so as to move the face cutting means and the rolling means upwardly and downwardly together through the carrier so that the swaging means, So as to move to the machining position.

According to the screw threading apparatus of the present invention, the movement of the rebar and the movement of the threaded portion through the combination and interlocking of the feeding means having the rebound movement chuck, the thread machining portion (swaging means, face cutting means, rolling means) It is possible to increase the productivity of the reinforcing bars and increase the utilization of the site by machining the threads at the joints of the reinforcing bars while maintaining the shortest distance.

1 is a plan view of a screw threading apparatus for reinforcing bars according to the present invention.
2 is a side view of a screw threading apparatus for reinforcing bars according to the present invention.
FIG. 3 is a front view of a reinforcing bar fixing chuck applied to a screw threading apparatus of a reinforcing bar according to the present invention. FIG.
4 is a view showing a screw threading process of a reinforcing bar by a screw threading device of a reinforcing bar according to the present invention.
5 is a front view of a thread machining portion applied to a thread machining apparatus for a reinforcing bar according to the present invention.
6 is a process chart of a method for machining a thread of a reinforcing bar according to the present invention.
Fig. 7 is a front view of a rolling roller applied to a screw threading apparatus for reinforcing bars according to the present invention; Fig.
8 is a side view of the rolling means applied to the screw threading apparatus of the present invention.
FIG. 9 is a perspective view of a reinforcing bar supplying means applied to an apparatus for threading a reinforcing bar according to the present invention; FIG.
10 is a side view of a reinforcing bar supplying means applied to a screw threading apparatus for reinforcing bars according to the present invention.
11 is an operational view of the elevator of the reinforcing bar supplying means applied to the screw threading device of the reinforcing bar according to the present invention.
Fig. 12 is a view showing a screw thread machining apparatus according to the present invention in which two thread machining sections are applied. Fig.
Fig. 13 is a plan view of the threading device for reinforcing bars according to the present invention to which the discharging means is applied. Fig.
Fig. 14 is a side view of the threading device for reinforcing bars according to the present invention, to which the discharging means is applied. Fig.
15 is a configuration diagram of a coupler fastening means applied to a discharge means of a screw threading apparatus for reinforcing bars according to the present invention.

As shown in FIGS. 1 and 2, the screw threading apparatus for reinforcing bars according to the present invention includes reinforcing bar supplying means 10 for supplying and supporting a reinforcing bar 1; A reinforcing bar feeding means (20) for moving the reinforcing bars (1) supplied from the reinforcing bar supplying means (10) by pressing and back and forth for machining the threads; And a thread machining portion (A) for machining a thread at a joint portion of the reinforcing bar (1) supplied by the reinforcing bar feeding means (20).

1, 9 and 10, the reinforcing bar supplying means 10 supplies one reinforcing bar 1 to the reinforcing bar feeding means 20, and the reinforcing bars 2 (the plurality of reinforcing bars 1 A first conveying section 11 for conveying the reinforcing bar bundle 2 and a reinforcing bar bundle 2 supplied from the first conveying section 11 to the respective reinforcing bars 1 A second conveying unit 12 for conveying the bundle 2 to be separated into individual reinforcing bars 1 and a vibrating distributor 12 for dispersing the reinforcing bars 1 conveyed through the second conveying unit 12 by vibration A separator 14 for dividing a plurality of reinforcing bars 1 dispersed by the vibration dispersing device 13 into two or more groups and a reinforcing bar 1 supplied by the second conveying portion 12, (15) for supplying the reinforcing bars (1) supplied one by one by the elevator (15) to the reinforcing bars (20) It consists of benefits (16).

The first transfer part 11 is preferably a plurality of chains spaced apart from each other by a predetermined distance and rotated in an endless track by a motor. The first transfer unit 11 is preferably configured such that a plurality of the first transfer units 11 are driven by using one motor as a drive source.

The second conveying unit 12 is formed of the same chain as the first conveying unit 11 and is arranged to have continuity with the first conveying unit 11 so that the reinforcing bars 1 conveyed from the first conveying unit 11 do not come off.

The vibration dispersing device 13 disperses a plurality of reinforcing bars 1 by spreading the reinforcing bars 1 provided in the space between the second conveying parts 12 and vibrating the reinforcing bars 1 transferred to the second conveying part 12, A lifting plate 13c connected to the base 13a and the base 13a by a lifting actuator such as a lifting cylinder (pneumatic pressure) 13b and ascending and descending; a vibration motor 13d mounted on the lifting plate 13c; A distributing plate 13e connected to the motor 13d for causing the reinforcing bars 1 to be oscillated by vibrations mounted on the upper surface thereof and a plurality of coil springs 13f as an elastic member for elastically supporting the distributing plate 13e And a plurality of guide rods can be constructed so that the lift plate 13c can smoothly ascend and descend without twisting.

The separator 14 is for separating a plurality of reinforcing bars 1 dispersed widely by the vibration dispersing device 13 into two or more groups and is particularly effective when machining a thread to the end of a reinforcing bar having a small diameter. This is because even if a plurality of reinforcing bars 1 are dispersed by the vibration dispersing device 13, the reinforcing bars having a small diameter have a bending property and proper dispersion is not achieved.

The separator 14 having such a function can be installed at the side of the vibration dispersing apparatus 13, preferably at the center of the dispersing plate 13e. The separator 14 can be installed, for example, And a dividing bar 14b which ascends and descends and separates a plurality of reinforcing bars 1 by rising.

The split bar 14b is preferably formed in an inclined shape in the form of an acid for efficient division of the reinforcing bar 1 and rises to the top of the dispersing plate 13e to divide the reinforcing bars 1 into two groups. The number of the groups of reinforcing bars 1 varies depending on the number of split bars 14b. Even if the second conveying section 12 is operated in the two reinforcing bars divided by the separator 14, the reinforcing bar group divided into the first conveying section 11 is blocked by the separator 14, so that only the front reinforcing bar group Lt; / RTI >

The separators 14 are installed at regular intervals from one another along the longitudinal direction of the reinforcing bars 1 and the dividing bars 14b of the plurality of separators 14 can be raised or lowered at the same time or at different time intervals.

The elevator 15 includes a fixing table 15a provided with stepped reinforcing bars 15a-1, 15a-2, 15a-3 and 15a-4 of multi-stages (four stages are shown as examples) A lifting bar 15b provided with stepped rebar lifting jaws 15b-1, 15b-2, 15b-3 and 15b-4 and an elevating cylinder 15c as an actuator for lifting and lowering the platform 15b, And an inclined guide plate 15d for guiding the reinforcing bars 1 raised by the reinforcing bars 16 to the reinforcing bars 16. The step-like reinforcing bars 15a-1, 15a-2, 15a-3 and 15a-4 may be the same size, the lowest one may be the largest, and the others may be small or gradually smaller.

The step-like reinforcing bars 15a-1, 15a-2, 15a-3 and 15a-4 of the fixing table 15a are formed so as to be inclined downwardly inwardly so that the reinforcing bars 1 do not fall downward.

The stepped reinforcing bars 15b-1, 15b-2, 15b-3 and 15b-4 of the platform 15b are inclined downwardly inwardly so that the reinforcing bars 1 do not fall downward, 15a-1, 15a-2, 15a-3, and 15b-4. A reinforcing bar 15b-5 is formed above the reinforcing bar 15b-4 for conveying the reinforcing bar 1 placed on the uppermost reinforcing bar 15a-4 to the inclined guide plate 15d do.

The platform 15b has a structure in which the reinforcing bar 1 protrudes forward from the fixing table 15 in order to raise the reinforcing bars 1 to the fixing table 15. The reinforcing bars 15 are provided on the upper side of the fixing bars 15, 2, 15a-3, and 15a-4, respectively.

The reinforcing bar supplying section 16 may be configured in various manners such as a roller, a belt, and a chain which are rotated by a motor to supply the reinforcing bar 1 to the reinforcing bar feeding means 20. When a thread is machined on the end of the reinforcing bar 1, (1), that is, supports the reinforcing bar (1) from the supply of the reinforcing bar (1) until threading and discharge.

The reinforcing bar feeding means 20 is constituted by a reinforcing bar fixing chuck 22 and a reinforcing bar moving chuck 23 which are arranged on the feeding die 21 and the feeding die 21 at regular intervals along the front and rear sides.

3, the reinforcing bar 22 includes a base block 22a fixed to the feeding die 21, a base block 22a mounted on the base block 22a so as to be gathered toward the center via hydraulic pressure or the like, And two or more chuck blocks 22b for clamping or unclamping the chuck block 1. The chuck block 22b is automatically clamped and unclamped through the control of the controller.

The reinforcing bar moving chuck 23 has a base block and a chuck block for clamping the reinforcing bars 1 like the reinforcing bar fixing chuck 22 except that the reinforcing bars 22 are provided on the feeding die 21 (Forward: toward the thread machining portion A, backward: opposite to the thread machining portion A).

The reinforcing bar 23 is clamped and unclamped under the control of the controller. The reinforcing bar 23 is movably mounted on a rail 21a formed on the feeding die 21, and an actuator such as a hydraulic cylinder, To move forward and backward.

As shown in Fig. 4, the threaded portion A is formed by swaging the reinforcing bar 1 with the rib 1a in a circular shape (the swaging means 30), and the tip portion of the reinforcing bar 1 Face Thread Processing [Face Tooth Pad (40)] - A thread is machined through a threading process (rolling means (50)) process on the outer peripheral face of the beveled reinforcing bar (1).

5, the swaging means 30 comprises a base block 31, a plurality of preferably four swaging blocks 32 arranged circumferentially around the reinforcing bars at the base block 31, , And an actuator (hydraulic cylinder 33 or the like) for advancing and reversing the swaging block 32 toward the reinforcing bar 1.

The swaging means 30 can press all the ribs in the periphery of the reinforcing bar 1 through a plurality of swaging blocks 32 to process the joints of the reinforcing bar 1 into a serpentine shape.

The swaging of the reinforcing bar 1 is performed by the swaging block 32. If a gap is formed between the swaging blocks 32, the reinforcing bar 1 may not be formed into a true circular shape, Can be configured to rotate through a rotating plate.

The rotating plate is connected to a motor or the like and a swinging block 32 is mounted. The swinging block 32 is rotated in both directions by the motor to change the position of the swinging block 32 so as to press all portions of the reinforcing bar 1. Therefore, the rotating plate does not rotate 360 °, but reciprocally rotates at a 45 ° width, for example. Of course, the angle of 45 [deg.] Is an example and depends on the spacing of the swaging blocks 32. [

The chamfering means 40 cuts the front end face of the swaged reinforcing bar 1 to uniformly finish the front end face of the reinforcing bar 1, and is a pre-processing step for high quality threading.

The chamfering means 40 is widely used in the field of machining a reinforcing bar 1. The chamfering block 41 is rotated to cut the front end face of the reinforcing bar 1 to perform a face treatment. .

The chamfering means 40 is configured such that the chamfering block 41 receives the rotational force of the motor 42 and rotates forward and backward while rotating forward and backward. The chamfering block 41 may be moved back and forth only by the chamfering block 41, [The assembly having the chamfering block 41] may be moved back and forth, and this will be described in detail below.

The rolling means 50 includes a plurality of (for example, three) rolling rollers 51 that are rotated by the rotational force of the motor 53 through the rotary plate 52 to rotate about the circumference of the joint portion of the beveled reinforcing bars 1, .

The rolling roller 51 is structured to have a cylindrical structure having a concavo-convex structure for rolling the screw threads and is configured to be movable in a direction to widen opposite to the direction in which the rollers 51 are gathered toward the reinforcing bars 1, Can be solved.

7 and 8, the plurality of rolling rollers 51 are respectively driven in the direction in which the rollers 55 extend in the direction opposite to the direction in which they are gathered toward the reinforcing bars 1 on the rotary plate 52 Respectively. Of course, guiding means is applied to the roller block 55 and the rotary plate 52 for the linear reciprocating movement of the roller block 55. The guide means may include a guide rail formed on the rotary plate 52, a slider formed on the roller block 55 and slidably connected to the guide rail. It is preferable that the guide rail and the slider are formed on both sides in order to stably move the roller block 55. It is a matter of course that the end portion is closed so that the roller block 55 is not detached.

The roller block 55 may include a pair of legs fixed to both sides of the rolling roller 51 and a connecting portion connecting the pair of legs.

The roller block 55 is installed so as to be gathered or spread through forward and reverse means.

The forward and reverse means includes an actuator such as a hydraulic cylinder 56, a push block 57 connected to the rod 56a of the hydraulic cylinder 56 to advance and retreat and to advance and retract the roller block 55, And an elastic member 58 that elastically supports in a wiping direction.

On the opposed surfaces of the roller block 55 and the push block 57, the inclined surfaces 55a and 57a are formed so that the roller block 55 can vertically move up and down by the forward and backward movement of the push block 57. [

One or more elastic members 58 are provided at the center of the roller block 55 and elastically support the roller blocks 55 in the direction in which the roller blocks 55 are stretched to each other. When the hydraulic pressure in the reverse direction is applied to the hydraulic cylinders 56, Let this happen quickly.

On the other hand, since the rolling roller 51 is threaded at the time of thread forming by the rotation of the rolling roller 51, the rotating plate 52 may be configured to be reversely rotated in order to separate the rolling roller 51.

The rotary plate 52 may be a hollow block type in which a rolling roller 51 or the like is installed therein and may be connected to the motor 53 through a power transmission means and rotated. The power transmission means may be any product capable of transmitting power such as a gear train.

The reinforcing feeding means 20, the swaging means 30, the beveling means 40 and the rolling means 50 are connected to each other through the automatic control of the controller to perform a series of processes from the supply of the reinforcing bars 1 to the screw thread rolling Is automatically performed, and this will be described in detail through the following screw threading method.

The swaging means 30, the chamfering means 40 and the rolling means 50 are moved to the machining position, and the swaging, chamfering and thread rolling are performed. To this end, the swaging means 30, The stroke means 40 and the rolling means 50 are moved through the carrier. Particularly, the present invention is characterized in that the machining time of the reinforcing bars is minimized by constructing the swaging means 30, the beveling means 40 and the rolling means 50 together through the optimum carrier to shorten the moving distance.

5, the swaging means 30, the chamfering means 40 and the rolling means 50 are mounted on a moving means which is movably mounted to the base frame 2 in a lateral direction (refer to FIG. 5). The moving means includes a carrier (60).

The carrier 60 may be of various shapes such as a plate type and a block type. For example, when the swinging means 30 is mounted on the base frame 2, the carrier 60 is moved left and right through the guide means 3 A horizontal portion 61 which is horizontally moved through a driving source (motor or the like) while being vertically mounted on the horizontal portion 61 and a vertical portion 62 which is vertically installed on the horizontal portion 61, And a lift block 63 in which the chamfering means 40 are vertically arranged and mounted.

That is, the swinging means 30, the chamfering means 40 and the rolling means 50 are moved left and right together through the carrier 60, and the chamfering means 40 and the rolling means 40, The swaging means 30, the chamfering means 40 and the rolling means 50 can be moved to the machining position through this process.

The chamfering means 40 and the rolling means 50 of the chamfering means 40 and the rolling means 50 are moved forward and backward. And is mounted in a rotatable manner. For example, the front and rear blocks 43 of the chamfering means 40 are mounted on the lifting block 63 such that they can be moved back and forth through a guide means and a drive source (motor, etc.) 54 are mounted so as to be able to move back and forth through a guide means and a drive source (motor, etc.). The forward and backward blocks 43 and 54 may be driven by a servo motor or the like so that the fine length of the screw thread can be adjusted.

The movable body (the reinforcing bar 23, the carrier 60, the lift block 63, the forward / backward blocks 43 and 54, etc. of the feeding means 20) And the movement control is controlled in conjunction with the machining operation of the swaging means 30, the chamfering means 40 and the rolling means 50. [

A method of threading a reinforcing bar according to the present invention is as follows.

1. Rebar supply.

One or more reinforcing bar bundles 2 are transported to the second transporting unit 12 through the first transporting unit 11 after being put on the first transporting unit 11 through a device such as a crane. Two or more reinforcing bar bundles 2 may be lifted, and at this time, only one reinforcing bar bundle 2 may be separated through the lifting bar to be transferred to the second conveying unit 12. [

In this process, the second transfer unit 12 is preferably in a stationary state.

The bundle of reinforcing bars 2 loaded on the second transfer section 12 is separated and unfolded individually by the cutting operation of the operator.

A plurality of individually separated reinforcing bars (1) are conveyed toward the vibration dispersing device (13) by the second conveying part (12).

When the reinforcing bars 1 are conveyed over the dispersion plate 13e of the vibration dispersing unit 13, the second conveying unit 12 stops, the dispersion plate 13e rises, the dispersion plate 13e vibrates by the vibration motor, (1) spread out widely.

The dispersing plate 13d disperses a plurality of reinforcing bars 1 by vibrations for a predetermined time and then the separator 14 rises to separate the plurality of reinforcing bars 1 into two groups.

The reinforcing bars 1 of the group separated to the front of the separator 14 are driven to the elevator 15 by the second conveying unit 12 being driven and the reinforcing bars 1 of the group separated to the rear of the separator 14 The separation is prevented by the separator 14.

The reinforcing bars 1 separated by the separator 14 and conveyed to the elevator 15 are raised one by one.

11, the initial position of the elevator 15 is set such that the reinforcing bars 15b-1, 15b-2, 15b-3 and 15b-4 of the platform 15b and the reinforcing bar transfer jaw 15b- 15a-2, 15a-3 and 15a-4 of the reinforcing bar 15a of the reinforcing bars 15a and 15b to stand the reinforcing bars 1, 15a-1, 15a-2, 15a-3, 15a-4 of the fixed table 15b on the reinforcing bars 15a-1, 15b-2, 15b-3 and 15b-4.

That is, the reinforcing bar 15b-1 of the first stage receives the reinforcing bar 1 from the second conveying unit 12 and raises it to the reinforcing bar receiving step 15a-1 of the first step, The reinforcing bar 15b-2 of the third stage lifts the reinforcing bars in the reinforcing bars 15a-1 of the first stage to the reinforcing bars 15a-1 of the second stage, The reinforcing bars on the reinforcing bars 15a-2 of the second stage are raised to the reinforcing bars 15a-3 of the third stage and the reinforcing bars 15b-4 of the fourth stage are reinforced The reinforcing bars in the jaws 15a-3 are raised to the reinforcing bars 15a-4 in the fourth stage and the reinforcing bars 15b-5 are reinforced in the reinforcing bars 15a-4 in the fourth stage, To the inclined guide plate 15d.

The reinforcing bar 1 is conveyed to the reinforcing bar supplying portion 16 by inclining the inclined guide plate 15d.

For example, the reinforcing bar 1 is connected to the feeding means 20 through a feeding means (such as a roller) provided in the reinforcing bar feeding portion 16, .

2. Reinforcement settings.

6, when the reinforcing bar 1 is supplied and the reinforcing bar 1 is detected by the optical sensor of the reinforcing bar fixing chuck 22, the supply of the reinforcing bars 1 is stopped, Stopped. At this time, the swaging unit 30 is set to the machining position (S10).

At the same time, the reinforcing bar 23 advances a certain distance toward the swaging means 30 in the state where the reinforcing bar 1 is clamped, so that the joining portion of the reinforcing bar 1 is inserted into the swaging means 30 (S20).

The moving distance of the rebound moving chuck 23 is a length at which the thread is machined. It is freely changeable through the setting of the manager, and the controller automatically controls the structure of the rebound moving chuck 23 and the like on the basis of the set value.

When the movement of the reinforcing bar moving chuck 23 is completed, the reinforcing bar fixing chuck 22 clamps the reinforcing bar 1. [ In this case, it is preferable that both the reinforcing bar fixing chuck 22 and the reinforcing bar moving chuck 23 clamp the reinforcing bars 1. Therefore, when the reinforcing bar 1 is pressed by the swaging means 30, It is possible to press the reinforcing bar 1 into a predetermined shape (circular shape).

When the swaging time has elapsed, the reinforcing bar 22 unlocks the reinforcing bar 1, and the reinforcing bar moving chuck 23 keeps clamping the reinforcing bars 1 (S30). The backward movement is for setting the chamfering means 40 to the machining position.

The swaging means 30 moves back to the machining position and the chamfering means 40 and the rolling means 50 move to the machining position which is carried out simultaneously by the carrier 60.

When the movement of the chamfering means 40 is completed, the reinforcing bar moving chuck 23 advances to set the joining portion (completion of swaging) of the reinforcing bars 1 in front of the chamfering means, The reinforcing bar fixing chuck 22 clamps the reinforcing bar.

When the clamping of the reinforcing bar 22 is completed, the chamfering means 40 can be moved for a predetermined time (or can be advanced by a certain distance), and the front end face of the reinforcing bar 1 is cut in a step S40.

When the chamfering of the reinforcing bars 1 is completed, the reinforcing bars 1 are moved backward by the reinforcing bars 23 as described above (S50).

Then, the elevating block 63 is lowered to set the rolling means 50 to the machining position.

The reinforcing bar 1 is advanced to the working position by the reinforcing bar moving chuck 23 and then the reinforcing bar 22 clamps the reinforcing bar 1. More specifically, The rolling rollers 51 are arranged in the form of an outer diameter larger than the outer diameter of the reinforcing bar 1 and the arrangement state is set as the initial position.

When the end of the reinforcing bar 1 is positioned within the rolling rollers 51 (based on the detection of the position of the reinforcing bar 1 or the rolling roller 51 by the optical sensor or the like), the hydraulic cylinder 56 presses the push block 57 Moves toward the reinforcing bars 1 and thus the rolling block 55 and the rolling rollers 51 move toward the reinforcing bars 1. [ The moving distance of the rolling roller 51 is set in advance according to the outer diameter of the reinforcing bars 1, and the rolling roller 51 is automatically moved.

The rolling means 50 advances while the rolling rollers 51 are in close contact with the outer circumferential surface of the reinforcing bar 1 to roll the threads to the joining portion of the reinforcing bar 1. [

The rolling process is performed based on the distance (the length of the thread line), and when the rolling means reaches the predetermined position by the limit sensor, the rolling process is stopped. When the rolling is completed, the rolling rollers 51 are moved so as to widen from the reinforcing bar 1, and are then moved backward. As a result, a thread is machined at the joint portion of the reinforcing bar (1).

When the threading of the reinforcing bars 1 is completed, the reinforcing bars 22 unlamp the reinforcing bars 1 and the reinforcing bars 23 are moved backward to the discharging position of the reinforcing bars 1 in a state where the reinforcing bars 1 are clamped After that, the reinforcing bars are unclamped to separate the reinforcing bars (1).

The threading process described above can be programmed to automate all processes (such as swaging, chamfering, rolling, thread length adjustment, etc.) by automation, and thus, through the recognition of bar code type orders.

For example, the bar code stores information such as the length of the reinforcing bar, the length of the screw thread, etc., and the controller reads the information of the bar code, automatically sets the moving distance of the moving means, and threading is performed only through the operation of the start switch.

According to the present invention, the machining of the thread is not performed only in the order of the swaging-chamfering-rolling process but may be performed in the order of the swaging-rolling-chamfering process.

It has been described and described that only one end of the reinforcing bars 1 is machined at one end of the length of the reinforcing bars 1, and a screw thread is formed at both ends of the reinforcing bars 1 in the longitudinal direction of the reinforcing bars 1 And the other end of the reinforcing bar 1 is disposed on the reinforcing bar portion A so that the opposite ends of the reinforcing bars 1 can be threaded on both ends of the reinforcing bar 1. [ However, in this case, it is inconvenient to turn over the reinforcing bar (1).

In order to solve this problem, as shown in FIG. 12, two screw threading portions A-1 and A-2 are provided on both sides, and the first screw threading portion A- And the other end portion of the reinforcing bar 1 is supplied to the second threaded portion A-2 on the other side only through the operation of threading one end of the reinforcing bar 1 and moving the reinforcing bar 1 without turning over the bar 1. Thus, 1) can be machined.

At this time, the movement of the reinforcing bar 1 from the first threaded portion A-1 to the second threaded portion A-2 is performed manually or automatically (automatic transfer by driving the reinforcing bar supplying portion 16) Is possible. For the sake of clarity, in FIG. 12, one set of the machining apparatuses is shown to process threads on one side of the reinforcing bars 1 and the other set of machining apparatuses is shown to process threads on the other side of the reinforcing bars 1.

13 and 14 show an example of the discharge means 70. Fig.

The discharging means 70 includes a discharging actuator (pneumatic cylinder or the like) for discharging the reinforcing bar 1 in the reinforcing bar supplying portion 16 and finished with the screw thread from the reinforcing bar supplying portion 16, A fastening die 72 for fastening / fastening the coupler 3 and the cap 4 to the screw threads on both sides of the reinforcing bar 1 moving along the first discharge die 71; A stopper 73 (pneumatic cylinder or the like) for restricting the reinforcing bar 1 supplied to the fastening die 72 to the fastening position of the coupler and the stopper 73, The coupler 3 and the cap (not shown) are connected by the coupler fastening means 80 and the cap fastening means 90, the coupler fastening means 80 and the cap fastening means 90 for fastening the coupler 3 and the cap 4 to each other. And a second discharge die 74 for supporting the reinforced bar 1 fastened / joined thereto.

The first discharge die 71 is formed so as to be inclined downwardly from the reinforcing bar supplying portion 16 toward the fastening die 72 so that the reinforcing bar 1 discharged by the discharging actuator is naturally supplied to the fastening die 72.

The fastening die 72 is constructed such that the coupler 3 is fastened to one side and the cap 4 is fastened to the other side of the screw threads on both sides of the reinforcing bar 1. The reinforcing bar 1 is fastened to the coupler fastening means 80 and the cap fastening means 90 A plurality of rollers, conveyors, and the like, which are rotated by a motor, are applicable.

The stopper 73 is provided on the bottom of the fastening die 72 so as to protrude upward from the bottom of the fastening die 72. The stopper 73 allows the reinforcing bar 1 to be received in the fastening die 72 by the protrusion by the upward movement, And is discharged to the discharge die 74. At this time, an actuator such as a hydraulic cylinder for discharging the reinforcing bars 1 in the fastening die 72 to the second discharge die 74 is applied.

The second discharge die 74 is an inclined structure having one or more reinforcing bars (shown as two stages in the drawing), and when applied in two or more stages, the reinforcing bars are divided through a protruding hydraulic cylinder or the like.

The coupler 3 and the plug 4 are fastened to the screw threads on both sides of the reinforcing bar 1 by manual or automatic operation of the operator. That is, the coupler 3 is coupled to the plug 4 at the other side.

As shown in FIGS. 13 and 15, the coupler fastening means 80 includes a coupler feeder 81 for loading and feeding a plurality of couplers 3, a coupler 3 fed through the coupler feeder 81, And a fastening means 82 for fastening the screw to the threaded portion of the reinforcing bar 1.

The coupler feed base 81 is provided on the coupler feed die 83 and the die 83 in an endless track and is provided with a conveyance chain 84 for conveying the coupler 3 to the coupling means 82, And an aligning cylinder 85 for separating the couplers 3 supplied through the conveying chain 84 one by one and aligning the coupler 3 to the position of the fastening means 82. [

The fastening means 82 comprises a motor and a socket which is rotated by the motor to fasten the coupler 3 to the threaded portion of the reinforcing bar 1. Since this is widely used in the field of machine production, a detailed description thereof will be omitted. The fastening means 82 may be fastened to the reinforcing bar 1 while the fastening means 82 is moved toward or away from the reinforcing bar 1 through the moving die.

The plug fitting means 90 is constituted by a plug feeder 91 and a hydraulic cylinder 92 for fitting the plug 4 supplied through the plug feeder 91 to the other screw thread portion of the reinforcing bar 1. [ The stopper coupling means 90 can also be moved forward and backward by the moving die as with the fastening means 82.

The stopper supply stand 91 has the same configuration as the coupler supply stand 81 (feed die, feed chain, alignment stand).

The hydraulic cylinder 92 forcibly pushes the stopper 4 supplied from the stopper supply stand 91 and forcibly engages with the other end of the reinforcing bar 1. [

It is preferable that the reinforcing bars 1 move in both directions for the coupling of the coupler 3 and the plug 4 by the coupler fastening means 80 and the plug fastening means 90, Do.

Although the coupler fastening means 80 and the cap fastening means 90 have been illustrated and described as being together, this is applicable to the case where the first and second thread machining portions are together, that is, when only one thread machining portion is applied, The means (80) and the plug fitting means (90) are provided independently of each other.

10: Reinforcing means,
11: first transfer part, 12: second transfer part
13: Vibrating disperser, 14: Separator
15: elevator, 16: reinforcement supplier
20: feeding means,
21: feeding die, 22: reinforcing bar
23: Rebar movement chuck,
30: swaging means,
40: means for chamfering,
50: rolling means,
51: rolling roller, 52: spindle
53: motor, 54: forward / backward block
55: roller block, 56: hydraulic cylinder
57: push block,

Claims (10)

A reinforcing bar supplying means (10) for supplying and supporting reinforcing bars;
A reinforcing bar feeding means (20) for clamping and moving the reinforcing bar supplied from the reinforcing bar feeding means back and forth;
A thread machining section (A) for machining a thread at an end of a reinforcing bar fed by the reinforcing bar feeding means;
And a controller for automatically controlling the steel bar feeding means and the thread machining section (A) so that the swaging process, the beveling process, and the rolling process are continued,
The thread machining portion includes:
Wherein the reinforcing bars are provided at the front of the reinforcing bars in a linearly reciprocating manner in a transverse direction orthogonal to the reinforcing bars and the ends of the reinforcing bars clamped by the reinforcing bars are pressed toward the center to press the protruding ribs formed on the surfaces of the reinforcing bars, A swaging means 30 for machining into a circular shape,
(40) mounted in front of the reinforcing steel feeding means so as to linearly reciprocate vertically and longitudinally and orthogonally to the reinforcing steel, and for cutting a front end face of the joint portion of the reinforcing steel forged by the swaging means,
A rolling means (50) for rolling a screw thread on a joint portion of a reinforcing bar, which is mounted on the front of the reinforcing bars in a vertical direction perpendicular to the reinforcing bars and linearly reciprocally movable longitudinally and reciprocally, ),
And moving means for moving the swaging means (30), the chamfering means (40) and the rolling means (50) to the threading position of the reinforcing bars through the control of the controller,
The moving means includes a carrier (60) on which the swinging means (30) is mounted and which moves right and left through guide means, a carrier (60) mounted on the carrier via a guide means so as to be able to move up and down, And a lift block (63) mounted on the swaging means (50) so that each of the rolling means (50) can be moved back and forth independently to move the face cutting means and the rolling means up and down together, And the chamfering means (40) and the rolling means (50) are moved to the working position of the reinforcing bar. [2] The apparatus of claim 1,
A reinforcing bar fixing chuck (22) which is fixed in front of the reinforcing bar feeding means and compresses and clamps the reinforcing bars by using an external force including hydraulic pressure, and a reinforcing bar which is mounted to the rear of the reinforcing bar fixing chuck so as to linearly reciprocate, And a reinforcing bar moving chuck (23) for advancing and retreating the reinforcing bar. The rolling apparatus according to claim 1 or 2, wherein the rolling means (50) comprises a plurality of rolling rollers (51) arranged at regular intervals along the circumferential direction, A rotating plate (53) for machining a thread on an outer circumferential surface of the end portion of the reinforcing bar, and a forward / backward means for converging or rolling the rolling roller toward the reinforcing bar. The rolling device as claimed in claim 3, wherein the forward / backward means comprises: a rolling block (55) mounted on the rotating plate so as to be gathered toward the reinforcing bars or widened to the opposite direction and mounted on the rolling roller; A push block (57) for collecting or spreading the rolled block by means of a spring, and an actuator for forcibly advancing or advancing the push block. The apparatus according to claim 3, wherein the reinforcing bar supplying means comprises: a conveying portion for conveying a plurality of reinforcing bars; a vibration dispersing device (13) for dispersing a plurality of reinforcing bars conveyed by the conveying portion by vibration; A separator (14) for separating the reinforcing bars into two or more groups, and an elevator for feeding the one group of reinforcing bars separated by the separator and conveyed by the conveying part to the reinforcing bar feeding means Processing equipment. [6] The screw threading device of claim 5, wherein the separator has a pointed shape with an upper end inclined downward toward the periphery, and is installed so as to be vertically movable in the space of the transferring part to separate the reinforcing bars from each other. The screw thread machining unit (A-1) according to claim 4, wherein the thread machining unit comprises first and second thread machining units (A-1 and 1-2) provided on both sides of the reinforcing steel supplying means, Is threaded on one end of the reinforcing bar and the second threaded portion (A-2) is threaded on the other end of the reinforcing bar. The screw threading device according to claim 7, further comprising a discharge means (70) for discharging the reinforcing bars machined by the reinforcing bars. The apparatus according to claim 8, further comprising a coupler fastening means (80) for fastening the coupler (3) to the threaded portion of the reinforcing bar which is discharged by the discharging means, wherein the coupler fastening means comprises a plurality of couplers (3) And a fastening means 82 for forcibly rotating the coupler 3 supplied through the coupler supply stand 81 and screwing the screw to the threaded portion of the reinforcing bar 1, (82) comprises a motor, and a socket for rotating the coupler (3) by screwing the coupler (3) to the threaded portion of the reinforcing bar (1). The apparatus according to claim 8, further comprising stopper coupling means (90) for coupling the stopper (4) to the threaded portion of the reinforcing bar discharged by said discharge means, said stopper coupling means (90) And a hydraulic cylinder (92) for inserting the plug (4) supplied through the plug supply stand (91) into the other screw thread portion of the reinforcing bar (1).

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