KR101536968B1 - Charging device of correction for half-chord - Google Patents

Abstract

The present invention provides a device for loading and correcting a half-chord for correcting the roundness and the bending in the lengthwise direction of a half-chord formed to have a semicircular cross-section. For this purpose, the device of the present invention comprises: a feeding unit placed in front of and in the rear of a press unit for loading and extracting the half-chord into and from the press unit; a turning unit placed in front of and in the rear of the feeding unit for turning the half-chord for the part where flexion changes in the half-chord to be located properly under a processing tool; and a correcting support unit placed in between the feeding unit and the press unit for supporting the half-chord in the overturned status and supporting the half-chord in the process of correcting the bending in the lengthwise direction formed in the half-chord.

Description

{CHARGING DEVICE OF CORRECTION FOR HALF-CHORD}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a half-cord calibration charging device, and more particularly, to a half-cord calibration charging device for calibrating a roundness and a longitudinal bending phenomenon of a half-cord molded in a semicircular cross-sectional shape.

A jackup rig is a portable offshore plant that is stably supported on the seabed by a plurality of legs.

This jack-up league can be applied to depths of more than 100 meters in recent years as the depth of oil development deepens.

This jack-up league typically has three independent legs and, in some cases, more than four legs.

During the drilling operation, the jacks are jacked down and secured to the seabed to ensure stability. When the drilling is completed, the legs are jacked up and floated with the buoyant force of the platform. At this time, the towing line towing moves to another area. Fixability is superior to drill ship, but it is impossible to work in deep water depth, mobility is weak, and jack over work is temporarily suspended in bad weather.

On the other hand, the legs of the jack-up league are made of a lattice type truss type, and the lattice type truss type legs are made of a single product through welding or the like, and the sizes such as the length are specified and used. A unit leg, which is a member used as a pillar in a jack-up league, is manufactured by joining a half-cord having a semicircular cross-sectional shape to the butt joint portion by welding.

As mentioned above, since the unit leg made of the half cords has to be applied to a depth of 100 m or more, the half cords are also formed to be long in accordance with the characteristics. In this case, the half cords have roundness, This can easily occur, and if it is not calibrated in a timely manner during the molding process, as a result, the roundness of the unit leg formed by the finished product becomes different, thereby causing a defect in the product. Therefore, the roundness of the half- And the provision of equipment for sufficiently correcting the warpage in the longitudinal direction is urgently required.

Document 1: Korean Patent Registration No. 10-0897986 Document 2: Korean Patent Application Publication No. 10-2012-0132045

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide a half-cord calibration charging device for correcting roundness and longitudinal bending of a half-cord formed in a semicircular cross-sectional shape.

It is another object of the present invention to provide a half-cord correcting and charging device which can prevent the main components of a turning and feeding unit from being damaged by a pressure of a press transferred to a half-cord.

According to another aspect of the present invention, there is provided a half-cord correcting and charging device for turning a half-cord so that a bending deformation portion of the half-cord can be positively positioned in a press unit.

Another object of the present invention is to provide a half-cord correction charging apparatus which, when calibrating a longitudinal bending phenomenon of a half-cord, causes the half-cord to be lifted up to prevent the impact occurring during calibration from being transmitted to another unit Device.

According to another aspect of the present invention, there is provided a half-cord calibration charging apparatus for charging a half-cord under a processing tool of a press unit and correcting bending deformation and longitudinal bending of the half- A feed unit disposed on the front and rear sides of the feeding unit and configured to load and unload the half cord into and out of the press unit, And a half unit disposed between the feeding unit and the press unit to support the half cords in an inverted state and to correct a longitudinal bending phenomenon formed in the half cords, The feeding unit includes a calibrating support unit A feeding roller which is mounted on the die and rotates with the motor power while the half cord is supported and which feeds and discharges the half cord into and from the press unit; And a first lift cylinder installed between the bogies to raise and lower the die.

And a second lifting cylinder for lifting the die so as to lift the half cord up to the holder height of the calibrating support unit is further provided between the die and the carriage.

The present invention can calibrate the roundness and longitudinal bending phenomenon of a half-cord formed in a semicircular cross-sectional shape, as well as to prevent the main components of the turning and feeding unit from being damaged by the pressure of the press transferred to the half- Thereby realizing an action effect.

Further, the half-cord is subjected to a turning operation so that the bending deformation portion of the half-cord can be positively positioned below the processing tool of the press unit.

Further, when correcting the longitudinal bending phenomenon of the half-cord, the calibration operation is performed in a state in which the half-cord is lifted by the calibration-supporting unit, thereby preventing the press-pressure from being transmitted to the other unit.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of a configuration of a half-cord calibration charging apparatus according to a preferred embodiment of the present invention; FIG.
Figure 2 shows the plane of Figure 1;
FIG. 3 is a front view of the feeding unit constituting the half-cord correcting and charging device according to the present invention. FIG.
Fig. 4 is a side view of Fig. 3; Fig.
5 is a view showing a state in which the first lifting cylinder of the feeding unit is lifted and lowered.
6 is a view showing a state in which the second lifting cylinder of the feeding unit is moved up and down;
FIG. 7 is a front view of a turning unit constituting a half-cord correction charging and discharging apparatus according to the present invention. FIG.
8 is a sectional view taken along the line AA in Fig.
9 is a sectional view taken along line BB of Fig.
10 is a diagram showing a turning operation state of the turning unit of FIG. 7;
FIG. 11 is a front view showing a configuration of a calibration support unit constituting a half-cord calibration and charging device according to the present invention. FIG.
12 is a view showing an operation state of the calibration support unit of FIG.
Fig. 13 is a front view of the operation state of the calibration support unit shown in Fig. 12; Fig.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the following detailed description, exemplary embodiments of the present invention will be described in order to accomplish the above-mentioned technical problems. And other embodiments which may be presented by the present invention are replaced by descriptions in the constitution of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of a configuration of a half-cord correcting and charging device according to a preferred embodiment of the present invention, and FIG. 2 is a view showing a plane of FIG.

As shown in Figs. 1 and 2, the half-cord correcting and charging device 100 of the present invention loads and pulls the half-cord 1 under the processing tool 94 of the press unit 90, A unit for correcting bending deformation and longitudinal bending phenomenon of a cord (1), which is disposed at the front and rear sides of the press unit (90), and which loads and pulls out the half cord (1) (1) so that the bending deformation portions of the half cord (1) can be positively positioned below the processing tool (94), the feeding unit (10) being disposed in front of and behind the feeding unit A turning unit 40 disposed between the feeding unit 10 and the press unit 90 and supporting the half cord 1 in an inverted state and having a length formed on the outer surface of the half cord 1, In the course of correcting the direction warping phenomenon, And a calibration support unit (70) for supporting the probe (1).

In the following, the detailed configuration of each of the above-mentioned units will be described in detail with reference to the accompanying drawings.

FIG. 3 is a front view showing an arrangement of a feeding unit constituting a half-cord correcting and charging device, and FIG. 4 is a side view of FIG.

As shown in Figs. 3 and 4, the feeding unit 10 of the present invention has the same structure as that of the press unit 90, 90).

The feeding unit 10 includes a bogie 14 that travels on a rail 12 before and after the bogie 14 and a first and a second lifting cylinder A die 16 mounted on the die 16 and rotating with the power of the motor 18 in a state of supporting the half cord 1 to move the half cord 1, And a feeding roller 20 for feeding the sheet.

5, when the half-cord 1 is lifted up to the feeding roller 20 as shown in FIG. 5, the first lifting cylinder 26 lifts up the feeding roller 20 and lifts up the half- The feeding roller 20 is lowered and the feeding roller 20 is dropped from the half cord 1 so that the pressing operation of the pressing unit 90 is performed So that the impact due to the feeding roller 20 is prevented from being transmitted to the feeding roller 20.

The first elevating cylinder 26 is fixed to the truck 14 and the rod 28 of the first elevating cylinder 26 is separated from the mounting groove 24 formed at the lower end of the die 16 So as to prevent the lifting operation of the die from being interfered by the first lifting cylinder when the die 16 is lifted higher by the lifting operation of the lifting cylinder 30, It is for this reason.

The second lift cylinder 30 is fixed to the bogie 14 and the rod 32 of the second lift cylinder 30 is coupled to the lower end of the die 16, To lift the die 16 upward.

6, a longitudinal bending phenomenon occurs on the outer surface of the half-cord 1 being transported, so that the half-cord 1 is turned upside down and loaded into the press unit 90 The harp cord 1 is lifted above the turning unit 40 so as to prevent interference with the turning unit 40 and to raise the inverted half cord 1 to the calibrating support unit 70 It is means. The rod 28 of the first lift cylinder reader 26 is not coupled to the die 16 but moves to the side of the die 16 The rod 28 of the first lifting cylinder 26 is not interfered with the die 24 of the first lifting cylinder 26 even if the die 16 is lifted by the driving of the second lifting cylinder 30, (16) is lifted and lowered from the die.

At both ends of the feeding roller 20 which is the feeding unit 10, a latching portion 22 is formed.

When the half-cord 1 is turned upside down, the latching portion 22 can be hooked on both inner surfaces of the inverted half-cord 1.

Fig. 7 is a front view showing a configuration of a turning unit constituting a half-cord correcting and charging device, Fig. 8 is a sectional view taken along line AA of Fig. 7, Fig. 9 is a sectional view taken along line BB of Fig. 7, Fig. 5 is a diagram showing a turning operation state of a turning unit of the present invention.

As shown in Figs. 7 to 10, when the bending deformation occurs in any part of the inner circumferential surface of the half-cord 1 which has been introduced into the press unit 90 by the operation of the feeding unit 10 , And the half-cord (1) is rotated to position a portion where the bending deformation has occurred under the processing tool (94) of the press unit (90).

The turning unit 40 includes a bogie 42 which reciprocates forward and backward on the rail 12 and a space 46 on which the half cord 1 passes, And a frame 44.

A turning rail 50 for supporting the half cord 1 is installed on the inner circumferential surface of the space 46 of the main body frame 44. The turning rail 50 receives the power of the motor 52, And moves on the inner circumferential surface of the space 46 of the main body frame 44 to turn the half-cord 1.

Clamps 48 are provided at both ends of the turning rail 50. The clamps 48 push the halves of the harness cord 1 on both sides of the turning rail 50, Is fixed on the turning rail (50).

A rack gear 58 is provided at the lower end of the turning rail 50. The main frame 44 is provided with a shaft 54 that receives power from the motor 52 to rotate, And a pinion 56 engaged with the rack gear 58 is coupled to the outer diameter of the pinion 56. When the shaft 54 is rotated by the power of the motor 52, The motor 50 receives the power of the motor 54 and moves on the inner circumferential surface of the space 46 of the main frame 44 to rotate the half cords 1.

A cushioning member 60 is provided between the body frame 44 and the truck 42. The cushioning member 60 is mounted on the turning rail 50 of the body frame 44, Is absorbed by the body frame 44 during the forging process of the press unit 90 so that the body frame 44 and the body frame 44 are moved up and down And is provided for the purpose of preventing breakage of the lifting cylinder 62.

A separate elevating cylinder (62) is further provided under the main body frame (44). The rod 64 of the lifting cylinder 62 is coupled to the lower end of the main body frame 44 and the main body frame 44 is moved in the process of feeding the half cord 1 by the operation of the feeding unit 40 When the half cord 1 is lifted up to the press unit 90, the main body frame 44 is lowered to minimize the impact generated during the pressing process to the respective components of the turning unit 40 do.

11 is a front view showing an arrangement of a calibration support unit constituting the half-cord calibration and charging apparatus according to the present invention, FIG. 12 is a view showing an operation state of the calibration support unit of FIG. 11, 12 is a front view showing the operation state of the calibration support unit shown in Fig.

11 to 13, when the longitudinal bending phenomenon occurs in the half cord 1, the calibration supporting unit 70 moves the feeding unit 10 in a state in which the half cord 1 is turned upside down, After the half-cord 1 is moved to the press unit 90 by the action of the feeding roller 20, the portion bent in the longitudinal direction of the half-cord 1 is corrected The half cords 1 are lifted up to a predetermined height or higher to support the half cords 1 during the calibration process.

The calibration support unit 70 includes a bogie 74 moving on a rail 72, a die 75 mounted on the bogie 74, A cylinder 80 installed at both sides of the die 75 and a cylinder 80 connected to the lower ends of both sides of the holder 76 so as to be drawn out to the cylinder 80, And a rod 82 for vertically and downwardly moving the holder 76 by the power of the motor 80. As shown in FIG.

At both sides of the upper end of the holder 76, a latching portion 78 is formed. The latching portion 78 can be hooked on the inner circumferential surface of the half-cord 1 when the half-cord 1 is turned over.

An insertion space 84 is formed in the die 75 and a shock absorbing plate 86 which is reciprocating forward and backward by the power of the cylinder 88 is inserted into the insertion space 84 so as to be drawn out to the outside . When the impact generated in the process of correcting the bent portion in the longitudinal direction of the half cord 1 in the press unit 90 is transmitted to the die 75 of the calibrating support unit 70, 75 to prevent breakage of the die 75.

The press unit 90 is a unit for forging and calibrating a portion where a bending deformation has occurred in the half cord 1 transferred by the operation of the feeding unit 10 or a portion where a bucking phenomenon has occurred with a pressing tool.

The press unit 90 includes a die 92 on which the half cord 1 is lifted and a pressing tool 94 for forging the half cord 1 placed on the die 92 in a pressing operation, Since the structure of such a press unit 90 is a known technique, a detailed description thereof will be omitted.

Hereinafter, the operation of the half-cord correcting and charging device according to the present invention will be described with reference to FIGS. 1 to 13.

First, the half-cord 1 having been subjected to the primary molding in the form of semicircular cross section is loaded on the feeding unit 10 of the present invention and then supplied to the press unit 90 according to the operation of the feeding unit 10, .

Preferably, when the half-cord 1 is placed on the feeding roller 20 on the die 16, the first lifting cylinder 26 is driven to lift the die 16, The feeding roller 20 rotates and feeds the half cord 1 to the forming die 92 of the press unit 90.

Next, after the half-cord 1 is placed on the molding die 92 of the press unit 90, the first lifting cylinder 26 descends and the half-cord 1 is lifted up to the molding die 92 of the press unit 90 The pressing roller 94 of the press unit 90 is operated and the half-cord 1 is lifted from the half-cord 1, (1) so that the bending deformation is corrected.

If the bending deformation of the half-cord 1 occurs at another position in the process of correcting the bending deformation of the half-cord 1 as described above, the half-cord 1 is turned The main body frame 44 constituting the turning unit 40 is moved up and down so that the turning rail 50 provided on the main body frame 44 is moved up and down by the pressing tool 92 of the press unit 90, The lifting cylinder 62 is driven to raise the main body frame 44 to a predetermined height and the motor 52 mounted on the main body frame 44 is driven The pinion 56 is rotated by the power of the motor 52 and the rack gear 58 engaged with the pinion 56 receives the power of the motor 52 through the pinion 56 and is rotated , Whereby the rack gear 58 is installed The nailing rail 50 is rotated in a state where it supports the half cords 1 so that the inner circumferential surface of the half cords 1 where the shear deformation has occurred is positioned right under the processing tool 94 of the press unit 90, Subsequently, the main body frame 44 is lowered again to place the half-cord 1 back on the molding die 92 of the press unit 90, and then the inner circumferential surface of the half-cord 1 in which the bending deformation occurs is calibrated.

When a longitudinal bending phenomenon occurs at the center of the outer diameter of the half cord 1, the half cord 1 must be turned upside down into the press unit 90. At this time, The cord 1 enters the press unit 90 with the cord 1 lifted higher and the calibration support unit 70 ascends and descends and the processing tool of the press unit 90 94 support the half-cord 1 during the course of the calibration work.

That is, when the half-cord 1 is turned upside down on the feeding roller 20 of the feeding unit 10, the second lifting and lowering cylinder 30 is driven to raise the feeding roller 20, The roller 20 is rotated by the power of the motor 18 to enter the half cord 1 into the press unit 90.

Next, the holder 76, which is the calibration support unit 70, supports the half-cord 1 that ascends and descends by driving the cylinder 80. In this state, the processing tool 94 of the press unit 90 is operated And the longitudinal bending portion of the half cord 1 supported by the calibration support unit 70 is corrected.

10: feeding unit 20: feeding roller
40: turning unit 50: turning rail
70: calibration support unit 76: holder
90: Press unit 94: Processing tool

Claims (2)

A half-cord calibration charging device for charging a half-cord (1) under a processing tool (94) of a press unit (90) and correcting bending deformation and longitudinal warping of the half-
A feeding unit (10) disposed on the front and rear sides of the press unit (90) for loading and unloading the half cord (1) into and out of the press unit (90);
A turning unit (not shown) disposed in front of and behind the feeding unit 10 for turning the half cords 1 so that the bending deformation portions of the half cords 1 are positioned right under the processing tool 94 40);
A die (75) disposed between the feeding unit (10) and the press unit (90), respectively;
A holder 76 installed on the upper surface of the die 75 to support the half-cord 1;
A cylinder 80 installed on both sides of the die 75;
A rod 82 which is inserted into the cylinder 80 so as to be drawn out and moves vertically up and down with the power of the cylinder 80 in a state of being coupled to both lower ends of the holder 76;
A shock absorber 86 inserted into the insertion space 84 formed at the lower end of the die 75 and reciprocating forward and backward with the power of the cylinder 88;
And hooking portions 78 protruding from both ends of the holder 76 and hooked on opposite inner circumferential surfaces of the inverted half cords 1 when the half cords 1 are inverted, (70) supporting the half cords (1) in a process of supporting the half cords (1) in an inverted state and correcting a longitudinal bending phenomenon formed on the half cords (1);
The feeding unit (10) comprises:
A bogie (14) which reciprocates before and after the rail (12);
A die (16) mounted on the truck (14);
A feeding roller 20 mounted on the die 16 and rotating with the power of the motor 52 in a state of supporting the half cord 1 and loading and unloading the half cord 1 into the press unit 90, ;
The first lifting cylinder 26 is fixed to the bogie 14 and the rod 28 extending out of the first lifting cylinder 26 is fixed to the mounting groove 24 The feeding roller 20 on which the half cords 1 are mounted is lifted up so that the half cords 1 are lifted up to the press unit 90, To prevent the impact due to the pressing operation of the press unit 90 from being transmitted to the feeding roller 20;
A second lift cylinder 30 is further installed between the die 16 and the truck 14;
When the half lifting cylinder 30 is bent in the longitudinal direction on the outer surface of the half cords 1 and the half cords 1 are to be turned upside down and loaded into the press unit 90, The die 16 is lifted so as to lift the half cord 1 up to the height of the holder 76 of the calibrating support unit 70 so that the center half cord 1 can be lifted up to the calibrating support unit 70 And a half-code correcting charging device.


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