KR20220091853A - H-beam pullout machinery of pressing the web by a hinge style and adjustment style - Google Patents

Abstract

The present invention relates to a hinge structure of a web pressing plate (350), and an adjustment structure using first and second linear guide housing parts (322, 342) and first and second linear guide protruding parts (212, 214). The hinge structure can minimize an entry width of a drawing machine on a vertical upper position of the web pressing plate (350), and also, can make the web pressing plate (350) inserted and protruding into both flanges of an H-beam on a vertical lower position to minimize a web compression travel distance. Meanwhile, the adjustment structure can make a pressing advancement direction of first and second pressing cylinders (310, 312) become "a symmetrically linear parallel advancement direction" with respect to longitudinal directions of the first and second linear guide housing parts (322, 342) and the first and second linear guide protruding parts (212, 214), thereby maximizing the durability of the first and second pressing cylinders (310, 312) without the risk of breakage.

Description

H-beam pullout machinery of pressing the web by a hinge style and adjustment style

The present invention relates to an H-beam drawing machine for compressing a web of an H-beam by a hinge structure and a correction structure. 2 The "correction structure" by the linear induction and receiving portions 322 and 342 and the first and second linear induction protrusions 212 and 214 is the core structure thereof. In this position, the entry width of the drawing machine is minimized, and in the vertical lower position, the web pressure plate 350 is inserted and protruded in both flanges of the H-beam to minimize the web compression movement distance, while the "correction structure" allows the first , 2 The pressing forward direction of the pressure cylinders 310 and 312 is “symmetrical” with respect to the longitudinal direction of the first and second linear induction and receiving portions 322 and 342 and the first and second linear induction protrusions 212 and 214 It relates to an invention in which the durability of the first and second pressurizing cylinders 310 and 312 is maximized because there is no fear of damage by being “a straight-line parallel forward direction”.

By adding “correction structure”, the unavoidable asymmetric pressing force of the first and second pressurizing cylinders is corrected with the symmetrical pressurizing force to prevent damage to the first and second pressurized cylinders as well as the compression force on the “H-beam web” by the symmetrical pressurizing force. As this is maximized, not only the slip phenomenon is minimized, but also the web pressure plate 350 is inserted and protruded within the flanges on both sides of the H-beam, thereby minimizing the compression movement distance to the "Web" of the protruding web pressure plate 350. .

In this way, maximizing the “Web” compression force when crimping the “Web”, minimizing the slip on the pressing force, and minimizing the crimping movement distance to the “Web” of the web pressure plate 350, and when entering the drawing machine, the “Web pressure plate” is vertical It is a useful invention that the drawing efficiency of the H-beam and the drawing machine equipment are miniaturized due to the minimization of the width of the access road of the drawing machine by being located at the top.

For the construction of underground structures, a temporary supportive protective film structure is essential.

for underground excavation. The structure of the temporary support protective film consists of a retaining earth wall and an H-beam. The H-beam is a vertical support member, and the earth wall is a horizontal support member.

After the underground structure is completed, the H-beam must be pulled out. The equipment used at this time is an H-beam drawing machine.

The shape of the H-beam is shown in FIG. 1 .

The drawing machine has two compression methods for the H-beam.

One crimping method is the “Flange (F) wing end crimping method” that crimps only the wing ends (a1-a1, b2-b2) of the flanges (F1) (F2), and the other is “Web” and “Flange (F1)”. )(F2) It is "Web-Flange (F) wing end crimping method" that simultaneously crimps the wing ends (a1-a1, b2-b2).

The greater the pressing force with the H-beam, the more minimal slippage during drawing. This is because the minimization of slip is the lifeblood of the drawing machine.

First, look at the "flange (F) wing end compression method".

As the prior art, there are registered Patent No. 10-1028845 (Prior Art-1; FIG. 2) and Registered Patent No. 10-1050579 (Prior Art-2; FIG. 3A).

The drawing machine of the prior art-1, the movable member 110, the base 112, the body 113, the main elevating cylinder (111a, 111b), the clamp cylinder and clamps (114a, 114b) and the auxiliary elevating cylinder (131a) , 131b) is included.

The main body 113 is made of an approximately U-shape, and the H-beam embedded into the U-shaped inner groove is inserted.

In the state in which the H-beam is inserted, the clamps 114a, 114b and the clamp chucks 114c and 114d are moved horizontally forward by the clamp cylinder, so that the wing ends a1-a1 of the flanges F1 and F2 of the H-beam are b2-b2) is clamped (compressed).

At this time, a pair of clamp cylinders are mounted on the left and right sides of the main elevating cylinders 111a and 111b in the clamps 114a and 114b to further increase the horizontal movement of the clamps 114a and 114b and the clamping force of the H-beam. .

By the way, the clamps 114a, 114b and the clamp chucks 114c, 114d are moved horizontally forward by the clamp cylinder to clamp only the wing ends a1-a1, b2-b2 of the flanges F1 and F2 of the H-beam ( compression), the wing ends (a1-a1, b2-b2) are deformed while being crushed (refer to the dotted line in Fig. 3c). As the clamp cylinder presses the clamps 114a and 114b and the clamp chucks 114c and 114d, the deformation also increases. The deformation of the wing ends a1-a1 and b2-b2 causes insufficient compression force during drawing, and as a result, a slip phenomenon is unavoidable, so there is an inefficient problem in that the drawing efficiency of the H-beam is greatly reduced.

The drawing machine of the prior art-2 includes a base plate 100 , a lifting support plate 200 , a pressure vise 300 , a pressurized hydraulic device 400 , a lifting hydraulic device 500 , and a locking ring 130 . is comprised of

The pressure vise 300 is moved forward and backward on the upper surface of the lifting support plate 200 by the pressure hydraulic device 400 . In addition, the pressure vise 300 is disposed on both sides of the pressure guide groove 201 to face each other. The H-beam P is inserted into the pressure guide groove 201 .

By the advancement of the pressing vise 300, the flanges F1 and F2 of the H-beam P are pressed to the wing ends a1-a1 and b2-b2. At this time, since the press vise 300 presses only the wing ends (a1-a1, b2-b2) of the flange (F1) (F2) of the H-beam (P), the wing ends (a1-a1, b2-b2) are crushed There is a problem of deformation (refer to the dotted line in Fig. 3c). As the pressure of the press vise 300 increases, the deformation of the wing ends a1-a1 and b2-b2 also increases. The deformation of the wing ends a1-a1 and b2-b2 causes insufficient compression force during drawing, and as a result, a slip phenomenon is unavoidable, so there is an inefficient problem in that the drawing efficiency of the H-beam is greatly reduced.

In the prior art-2, the stopper rod 330 is formed on one side of the press vise 300 as shown in FIG. 3b to reduce the slip phenomenon due to this distortion.

As salpin bar above, the first problem of "flange (F) wing end crimping method" of prior art -1 and -2 is, as in the above salpin bar, there is one clamp crimping part and the position is the flange (F1) of the H-beam ( Since it is the wing end (a1-a1, b2-b2) of F2), the wing end (a1-a1, b2-b2) is deformed while being crushed by the pressurization of the clamp cylinder. There is an inefficiency problem in which the efficiency is greatly reduced.

The second problem is, as shown in Fig. 3a, with respect to one pressurizing vise 300 (ie, clamp), the structure is pressurized by two pressurizing hydraulic devices 400 (ie, clamp cylinder) at a predetermined interval (d).

Since the energy of the hydraulic cylinder is due to the flow rate of the fluid, even if it is a branch pipe of the same diameter, it is inevitably 2 due to the difference in the micro flow velocity of each branch pipe, the minute time difference in the pressurization of the hydraulic cylinder, and the difference in the fine discharge amount. There is a problem in that the initial operation of hydraulic cylinders is asymmetrical.

It is for this reason that the larger the difference between the lengths of the two branch pipes with respect to the oil supply tank, the greater the problem of asymmetry.

When the hydraulic cylinder is pressurized in a state where the initial operating hydraulic pressure of the two hydraulic cylinders is asymmetrical, the rod of the hydraulic cylinder becomes asymmetrical, and there is a problem in that the hydraulic cylinder is damaged. This is because the advancing directions of the two hydraulic cylinders are pressed against each other in staggered, inclined directions, not in the same direction.

Next, we will look at “Web-Flange (F) wing end compression method” in which “Web” and “flange (F1) (F2) wing end (a1-a1, b2-b2)” are simultaneously compressed.

As a prior art for this method, Patent Publication No. 10-2019-0138080 (Prior Art-3) is representative.

The drawing machine 100 of the prior art-3 has a configuration in which the upper and lower plates 111 and 113 and the lower plates 112 and 114 are provided to face each other in the upper and lower parts, as shown in FIG. 4A .

The first and second pressing members 120 and 130 that are moved forward and backward by the first and second pressing cylinders 140 and 141 are installed on the two pressing support upper plates 111 and 113 opposite to each other. The first and second pressing members 120 and 130 are moved forward and backward by the first and second pressing cylinders 140 and 141 fixed and installed on the pressing support upper plates 111 and 113 .

First and second pressing plates 121 and 131 are formed on the front surfaces of the first and second pressing members 120 and 130 . The "flanges (F1) (F2) wing ends (a1-a1, b2-b2)" of the H-beam 200 are pressed and compressed by the first and second pressure plates 121 and 131 .

One end of the elevating connecting member 161 is provided in the fitting groove 162 of the central portion of the first and second pressing members 120 and 130, and the engaging groove 163 of the other end of the elevating connecting member 161 is in the engaging groove 163. The pressure-increasing plate 160 is inserted and assembled.

Insertion and assembly of the elevating connection member 161 and the pressure-increasing plate 160 is a wedge structure having a wedge inclined surface.

The drawing machine 100 of the prior art-3 has a structure in which "two places are simultaneously compressed" with respect to the H-beam.

That is, "one place" is "H-beam web" compression by the "pressure-increasing plate 160", and "the other one" is "first and second pressure plates 121 and 131" by " Flange (F1, F2) of H-beam" is crimping.

The pressurization of the "pressure-increasing plate 160" and the "first and second pressure plates 121 and 131" is simultaneous pressurization by the "first and second pressure cylinders 140 and 141".

Since the drawing machine 100 of the prior art-3 has only one "compression surface", unlike the prior art-1 and -2, the "H-beam web" crimping is added and "compression force is exerted simultaneously in two places" When drawing "H-beam", "the magnitude of the applied compression force" and "the magnitude of the slip restraining force with respect to the compression force" are doubled, so that the slip phenomenon is minimized.

However, the drawing machine 100 of the prior art-3 also has a structure in which the pressure support upper plates 111 and 113 are pressurized by the first and second pressurizing cylinders 140 and 141 in the same manner as in the prior art -1 and -2. The problems of techniques -1 and -2 still exist. That is, the unavoidable problem (that is, damage to the hydraulic cylinder) caused by the relationship between the initial operating hydraulic pressures of the first and second pressure cylinders 140 and 141, respectively, is not symmetrical with each other.

This is because the advancing directions of the two first and second pressure cylinders 140 and 141 are pressed against each other in staggered inclined directions, not in the same direction.

In addition, when the two first and second pressure cylinders 140 and 141 proceed in a staggered inclined direction, the "pressure-increasing plate 160" cannot accurately enter the "H-beam web", so that the "pressure-increasing plate (160)" by "Web of H-beam" and "Pressure support top plate 111, 113" by "H-beam flange (F1) (F2) wing ends (a1-a1, b2-b2) )", there is a problem that "compression force cannot be exhibited at the same time" in two places.

Although this problem is a problem of the hydraulic cylinder itself, the biggest problem is that there is no other means to correct the staggered inclination directions of the first and second pressure cylinders 140 and 141 .

In addition, the drawing machine 100 of the prior art-3 is entered in the B direction in FIG. 4B as it enters in the A direction in FIG. 3A. In Fig. 4b, more space is needed on both sides E for entry in the direction B. This is because E becomes an obstacle as a protrusion obstacle space of the "pressure-increasing plate 160".

There is an uneconomical problem in that the scale of the drawing machine 100 becomes larger due to the protrusion obstacle space E of the both sides of the "pressure-increasing plate 160". This is because it is economical in terms of relative scale compared to FIG. 3B without the "pressure-increasing plate 160" as it enters the direction A.

⒜ The present invention is a “correction structure” of “symmetrical straight parallel entry” by the first and second straight line guide protrusions formed on the support plate, and the first and second straight line guide receiving sections of the first and second pressing members corresponding and formed thereto By adding , the unavoidable asymmetric pressing force of the first and second pressurizing cylinders is corrected with a symmetrical pressurizing force to prevent damage to the first and second pressurized cylinders as well as the symmetrical pressurizing force to maximize the compression force on the “H-beam Web”. The purpose is to minimize the slip phenomenon for

⒝ By making the “Web pressure plate” into a “180 degree vertical rotation structure” by the hinge structure, when crimping the “Web of H-beam”, the “rotated” Web pressure plate is placed on the front surface of the first and second vertically lower pressing members. It is positioned so that it protrudes into the access passage of the drawing machine, and when entering the drawing machine, the "rotated" Web pressure plate is located on the vertical upper part of the first and second pressure members 120 and 130 so that the access passage is wide open so that there is no entry obstacle. has a different purpose,

⒞ During crimping of 「Web」, the symmetrical pressing force of the first and second pressure cylinders is maximized by the 「compensation structure」 of “Symmetrical straight parallel entry”, and the crimping force of 「Web of H-beam」 is maximized, and at the same time, the slip phenomenon against the compression force Not only this is minimized, but the web pressure plate 350 is protruded and inserted into the flanges on both sides of the H-beam, thereby minimizing the pressing movement distance to the "Web" of the protruding web pressure plate 350, while entering the drawing machine, the "Web pressure plate" There is another purpose to minimize the width of the access road of the drawing machine by getting out of the access road by “rotation” and going up vertically.

⒟ In this way, when “Web” is pressed, the “Web” compression force is maximized, the slip on the compression force is minimized, and the compression movement distance to the “Web” of the web platen 350 is minimized, and when the drawing machine enters, the “Web platen” is Another object is to make the drawing efficiency of the H-beam and the drawing machine miniaturized due to the minimization of the width of the access road of the drawing machine by going up vertically.

The H-beam drawing machine for pressing the web of the H-beam by the hinge method of the present invention is an improvement of the problems of the prior art-3. The applicant of this application and prior art-3 is the same. In the prior art-3 or the drawing machine of the present invention, the entry direction of the H-beam is the same in the A direction as in the prior art-2. However, with respect to the first and second pressing members 320 and 340, the "central vertical vertical 180 degree rotation structure of the web pressing plate" by the hinge structure, and the first and second linear induction protrusions of the support upper plate and the corresponding first , 2 This is a configuration in which the “correction structure” of “symmetrical straight parallel entry” by the first and second straight line induction receiving units of the pressing member is added.

The core configuration of the present invention will be described based on this.

In a state in which the H-beam is compressed by the pressure of the first and second pressure members 320 and 340 by the first and second pressure cylinders 310 and 312, the first, 2 In a conventional H-beam drawing machine in which the lifting cylinders 110 and 120 are raised, the support plate 210 is also raised together, and at the same time the H-beam is drawn with the rise.

The web pressure plate 350 located in the center of the first and second pressing members 320 and 340 can rotate up and down 180 degrees in the center vertical direction of the first and second pressing members 320 and 340 by the hinge structure. , the hinge structure is a rotating arm member 360 fixed to the fixed hinge portions 320e and 340e of the L-shaped upper surfaces 320c and 340c of the first and second pressing members 320 and 340 and the Web pressing plate 350. ) and the hinge shaft (320g) (340g), wherein the vertical upper portion of the hinge-rotated Web pressing plate 350 is the L-shaped upper surface of the first and second pressing members 320 and 340 (320c) (340c) The vertical lower part of the hinge-rotated Web pressing plate 350 is in a state of being supported by the L-shaped vertical step (320d) and (340d) while being in a standing position in the first and second pressing members 320 and 340 in contact with the central vertical surface. On the other hand, when entering the drawing machine into the H-beam, the Web pressure plate 350 is positioned at the vertical upper part by the hinge rotation of the Web pressure plate 350, and the access passage is open and free, and when drawing, the Web pressure plate 350 ) is in contact with the central vertical surface of the first and second pressing members 320 and 340 located in the vertical lower portion, and in this state, by pressing the first and second pressing members 320 and 340, the Web pressing plate 350 It is an H-beam drawing machine for crimping the web of the H-beam by a hinge method, characterized in that this “Web” is crimped.

here,

The first and second pressure cylinders 310 and 312 in contact with the support top plate 210 ? The first and second straight line induction receiving portions 322 and 342 are provided on the bottom surfaces 320f and 340f of the first and second pressing members 320 and 340 that are moved backward, and the corresponding support top plate 210 of the First and second linear induction protrusions 212 and 214 are formed on the upper surface portion, and the first and second linear induction protrusions 212 and 214 are first and second linear induction and receiving portions 322 and 342. A "correction structure" assembled and combined with each other is formed, but the first and second pressure cylinders 310 and 312 are parallel to the center line c-c of the first and second pressure members 320 and 340, and the first , 2 linear induction receiving portions 322, 342 and the first and second linear induction protrusions 212, 214 are symmetrical and parallel to each other with respect to the center line (c-c), while the first and second pressure cylinders 310 It is an H-beam drawing machine that compresses the web of the H-beam by a hinge method, characterized in that the pressing forward direction of the 312 is always maintained parallel to the center line (c-c).

Not only that,

The vertical surfaces 320a and 340a of the first and second pressing members 320 and 340 have non-slip toothed portions 320b and 340b in the longitudinal direction, and the rear portion of the corresponding Web pressing plate 350 in the longitudinal direction. By a hinge method, characterized in that the rear non-slip toothed portion 354 is formed, and the non-slip toothed portion 320b, 340b and the rear non-slip toothed portion 354 are engaged and compressed with each other during drawing H- It is an H-beam drawing machine that squeezes the web of the beam.

In addition,

In the rotary arm member 360, one end is fixed to the upper surface of the web pressing plate 350, the other end is formed with a vertical rotation hinge hole 362, the vertical rotation hinge hole 362 and the first and second pressing The fixed hinge parts 320e and 340e of the members 320 and 340 form a hinge structure by the hinge shaft 364, and by the upper rotation of the rotary arm member 360, the Web pressing plate 350 is first, 2 The pressing members 320 and 340 are located in the vertical upper part to escape from the access road of the drawing machine, while the web pressing plate 350 is inserted and protruded inside the flanges on both sides of the H-beam by the lower rotation of the rotary arm member 360. At this time, H-beam drawing for compressing the web of the H-beam by a hinge method, characterized in that the compression distance from the front pressing part 352 of the web pressure plate 350 to the "Web" is minimized. it's gi

and,

The vertical rotation of the web pressure plate 350 is made by the rotation structure at both ends of the web hydraulic cylinder, but the one-end rotation structure of the web hydraulic cylinder is in the lift up-down hole 366 of the rod of the web hydraulic cylinder and the rotating arm member 360. The web of the H-beam by a hinge method, characterized in that the other end rotational structure is made by any one of the first and second lifting cylinders 110 and 120 and the cylinder of the Web hydraulic cylinder. It is an H-beam drawing machine for pressing.

In addition,

The first and second pressing members 320 and 340 by the first and second pressing cylinders 310 and 312 in a state in which the Web pressing plate 350 is inserted and protruded into the flanges on both sides of the H-beam by lower rotation. It is characterized in that a1-b2 and a1-b2 of the flanges (F1) and (F2) of the first and second pressing members 320 and 340 are pressed at the same time as the “Web” of the web pressing plate 350 is pressed together with the pressing. It is an H-beam drawing machine that compresses the H-beam web by a hinge method.

As such, the present invention provides a "hinge structure" of the Web pressure plate 350, and the " Correction structure” is its core structure.

The entry width of the drawing machine is minimized at the vertically upper position of the web pressure plate 350 by the "hinge structure", and the web pressure plate 350 is inserted and protruded in the flanges on both sides of the H-beam at the vertical lower position to move the web press While the distance is minimized, the compression forward direction of the first and second pressurizing cylinders 310 and 312 by the "correction structure" is adjusted to the first and second linear induction and receiving portions 322 and 342 and the first and second linear induction. It is characterized in that the durability of the first and second pressure cylinders 310 and 312 is maximized because there is no fear of damage by being in a “symmetrical straight and parallel forward direction” with respect to the longitudinal direction of the protrusions 212 and 214 .

⒜ The present invention is a “correction structure” of “symmetrical straight parallel entry” by the first and second straight line guide protrusions formed on the support plate, and the first and second straight line guide receiving sections of the first and second pressing members corresponding and formed thereto By adding , the unavoidable asymmetric pressing force of the first and second pressurizing cylinders is corrected with a symmetrical pressurizing force to prevent damage to the first and second pressurized cylinders as well as the symmetrical pressurizing force to maximize the compression force on the “H-beam Web”. It has the effect of minimizing the slip phenomenon for

⒝ Due to the hinge structure, the "Web pressure plate" becomes a "180 degree vertical rotation structure", so when "H-beam web" is pressed, the "rotated" Web pressure plate is located on the front of the first and second vertically lower pressure members It protrudes from the access passage of the drawing machine, and when entering the drawing machine, the "rotated" "Web pressure plate" is located on the vertical upper part of the first and second pressure members 120 and 130, so that the access passage is wide open and there is no entry obstacle. It has the effect of easy access for begging,

⒞ During crimping of 「Web」, the symmetrical pressing force of the first and second pressure cylinders is maximized by the 「compensation structure」 of “Symmetrical straight parallel entry”, and the crimping force of 「Web of H-beam」 is maximized, and at the same time, the slip phenomenon against the compression force Not only this is minimized, but the web pressure plate 350 is protruded and inserted into the flanges on both sides of the H-beam, thereby minimizing the pressing movement distance to the "Web" of the protruding web pressure plate 350, while entering the drawing machine, the "Web pressure plate" ' has the effect of minimizing the width of the access road to the extraction machine by getting out of the access road and going up vertically by the "rotation" of

⒟ In this way, when “Web” is pressed, the “Web” compression force is maximized, the slip on the compression force is minimized, and the compression movement distance to the “Web” of the web platen 350 is minimized, and when the drawing machine enters, the “Web platen” is It is a useful invention that has the effect of reducing the drawing efficiency of the H-beam and the miniaturization of the drawing machine due to the minimization of the width of the access road of the drawing machine by going up vertically.

[Figure 1] A cross-sectional view showing the shape of the drawn H-beam
[Figure 2] A perspective view of the drawing machine of the prior art-1
[Figure 3a] A perspective view of the drawing machine of the prior art-2
[Fig. 3b] A plan view showing the state that the stopper rod 330 is supported against the bending of the upper dotted line of the pressurized vise 300 by the pressurization of the pressurized hydraulic device 400
[Fig. 3c] a plan view showing the bending of the lower dotted line of the pressurized vise 300 by the pressurization of the pressurized hydraulic device 400
[Figure 4a] A perspective view of the drawing machine of the prior art-3
[Fig. 4b] Plan view of Fig. 4a for drawing of the H-beam
[Fig. 5a] In the state in which the web pressing plate 350 is rotated vertically above the first and second pressing members 320 and 340 by the hinge structure of the present invention, the puller P enters toward the H-beam Shishido who showed up
[FIG. 5B] AA sectional view of FIG. 5A
[Figure 6] A state in which the Web pressure plate 350 is rotated vertically lower of the first and second pressure members 320 and 340 by the hinge structure of the present invention while the Web pressure plate 350 is pressed against the H-beam an attempt to show
[Figure 7] The first and second linear induction and accommodating portions 322 and 342 of the first and second pressing members 320 and 340 of the present invention and the first and second linear induction protrusions of the support top plate 210 corresponding thereto A state perspective view showing the state in which the first and second pressure cylinders 310 and 312 are advanced in a state in which the 212 and 214 are coupled.
[Fig. 8a] A plan view of Fig. 5a
[Fig. 8b] A plan view of Fig. 6
[Fig. 8c] A plan view showing a state in which the web pressing plate 350 of Fig. 8b is pressed against the H-beam

The H-beam drawing machine for pressing the web of the H-beam by the hinge method of the present invention is an improvement of the problems of the prior art-3, and the "hinge structure" of the Web pressure plate 350, which is the core structure of the present invention, and , and the first and second pressure cylinders 310 and 312 will be described focusing on the “symmetrical straight and parallel forward direction” and “correction structure”. This is because the operation structure other than the core structure is the same as that of the prior art-3.

1) About the hinge structure of the web platen 350

Web pressing plate 350 is rotated up and down 180 degrees in the vertical direction from the center of the first and second pressing members 320 and 340 by the hinge structure.

The hinge structure of the Web pressing plate 350 is formed by the rotating arm member 360 and the fixed hinge portions 320e and 340e of the first and second pressing members 320 and 340 .

When the web pressing plate 350 is positioned vertically upward by the “rotation” of the hinge structure, the drawing machine enters toward the H-beam in the A direction as in FIGS. 5A and 8A . At this time, there are no obstacles on the access road of the drawing machine, so it is easy to enter the drawing machine and the access width of the drawing machine is minimized. When the drawing machine enters, its width is the same as (B + 2a) of FIG. 8B. If the protrusion length of the web platen 350 is f, it becomes f>a, so it is possible to reduce the width of one side of the access road of the drawing machine by (f-a).

When the Web pressure plate 350 is positioned vertically lower by the "rotation" of the hinge structure, the Web pressure plate 350 is in contact with and protrudes from the center vertical surface of the 1 and 2 pressing members 320 and 340. This state is a step for preparing the drawing of the H-beam. At this time, the position of the web platen 350 is located between the webs while being inside the width B of the flanges F1 and F2 of the H-beam, as shown in FIGS. 6 and 8b. In this insertion state, the pressing distance from the front pressing part 352 of the Web pressing plate 350 to "Web" is minimized. However, it is impossible to enter the drawing machine in this state. On the other hand, the feature is that the entry is possible and the compression distance is minimized at the same time. For this purpose, the "hinge rotation structure" of the Web pressure plate 350 is used.

In Fig. 8b, under the premise that f>a, the number of compressions varies according to the relationship between a and b.

That is, in ① a > b, only one place is compressed. One place is the web compression of the web pressure plate 350 (see Fig. 8c).

② At a = b, it is compressed in two places. The one place is the Web compression of the Web pressing plate 350, and the other one is the ends of the H-beams of the first and second pressing members 320 and 340 on both sides of the flanges (F1) and (F2).

Accordingly, the extraction of the H-beam is efficient due to the minimization of the entry width of the drawing machine and the minimization of the compression distance of the web platen 350, and there is an economic advantage of miniaturization of the drawing machine, as well as the H-beam due to double simultaneous compression. There is an advantage that the efficiency of the drawing is maximized.

A) With respect to the rear non-slip toothed portion 354 of the web pressure plate 350 and the non-slip toothed portions 320b and 340b of the first and second pressing members 320 and 340

The first and second pressing members 320 and 340, the non-slip toothed portions 320b and 340b of the vertical surfaces 320a and 340a, and the rear non-slip toothed portion 354 of the corresponding Web pressure plate 350 are Slipping is prevented during H-beam drawing by engaging and compressing each other.

B) About vertical rotation of the web pressure plate 350

The vertical rotation of the Web pressure plate 350 is preferably performed by a Web hydraulic cylinder. At this time, the structure of both ends of the web hydraulic cylinder is preferable.

For example, the one end rotational structure of the Web hydraulic cylinder is made by the lift up-down hole 366 of the rod of the Web hydraulic cylinder and the rotating arm member 360, and the other end rotational structure is the cylinder of the Web hydraulic cylinder and the first, 2 It is preferable to be made by any one of the lifting cylinders 110 and 120. The double-end rotation structure is a typical rotation structure.

One end of the rotating arm member 360 is fixed to the upper surface fixed welding portion 356 of the Web pressing plate 350 , and the other end is configured with a vertical rotation hinge hole 362 .

The vertical rotation hinge hole 362 of the rotation arm member 360 includes fixed hinge portions 320e and 340e formed on the L-shaped upper surfaces 320c and 340c of the first and second pressing members 320 and 340 and the hinges. A hinge structure is formed by the shaft 364 .

Web pressing plate 350 is located vertically upper and vertical lower portion of the first and second pressing members 320 and 340 by the hinge structure of the hinge shaft 364. When it is positioned in the vertical lower part, it is a position in contact with the first and second pressing members 320 and 340, and the vertical upper part is the L-shaped upper surface 320c, 340c of the first and second pressing members 320 and 340. The Web pressure plate 350 is supported by the L-shaped vertical step (320d) (340d) while standing in the position.

2) About 「Correction Structure」 of “Symmetrical Linear Parallel Forward Direction”

The "correction structure" of the "symmetrical straight parallel advancing direction" includes the first and second pressing members 320, 340, the first and second straight line induction receiving portions 322 and 342 of the bottom surface portions 320f and 340f, and, The first and second straight guide protrusions 212 and 214 of the support top plate 210 corresponding thereto are assembled and combined with each other.

The first and second pressure cylinders 140 and 141 are parallel-symmetrical with respect to the center line c-c as shown in FIG. 8a and have a structure arranged at an interval of d (refer to FIG. 3b), but when hydraulic pressure is supplied thereto, the It is an unavoidable problem with the hydraulic system that the forward directions inevitably cross each other without being able to keep parallel with each other. The "correction structure" is intended to solve this problem. The first and second pressure cylinders 140 and 141 are such that the "symmetrical straight parallel forward direction" is maintained by the "correction structure".

The two first pressure cylinders 310 and 310 (or the two second pressure cylinders 312 and 312 ) are arranged symmetrically with respect to the center line c-c. Even when the hydraulic system is operated, the first and second pressing members 320 and 340 of the long horizontal member are the two first pressing cylinders 310 and 310 (or the two second pressing cylinders 312 and 312). The “correction structure” is designed to advance in the same parallel by .

There is no risk of damage due to the "correction structure", and the durability of the first and second pressure cylinders 140 and 141 is maximized.

P; Drawing machine (P)
100; lift cylinder, 110; The first elevating cylinder 110, 120; The second lifting cylinder 120,
140; a first pressure cylinder 140, 141; a second pressure cylinder 141,
200; support plate, 210; support plate 210, 212; The first linear guide protrusion 212, 214; a second straight-line guide protrusion 214, 220; Support lower plate 220,
300; Pressing unit, 310; a first pressure cylinder 310, 312; a second pressure cylinder 312,
320; first pressing member 320, 320a; vertical surfaces 320a, 320b; non-slip toothed portion (320b), 320c; L-shaped upper surface (320c), 320d; L-shaped vertical step (320d), 320e; Fixed hinge portion (320e), 320f; bottom portion (320f), 322; The first straight line induction receiving part 322,
340; second pressing member 340, 340a; vertical surfaces 340a and 340b; non-slip toothed portions 340b and 340c; L-shaped upper surface (340c), 340d; L-shaped vertical step (340d), 340e; Fixed hinge portions (340e), 340f; side portion (340f), 340g; bottom portion (340g), 342; The second straight line induction receiving part 342,
350; Web platen 350, 352; Front crimp 352 . 354, rear non-slip teeth 354, 356; The upper surface fixed welding part (356),
360; rotating arm member 360, 362; Up and down rotation hinge hole (362), 364; hinge shaft 364, 366; lift up-down hole (366);

Claims (6)

In a state in which the H-beam is compressed by the pressure of the first and second pressure members 320 and 340 by the first and second pressure cylinders 310 and 312, the first, 2 In a conventional H-beam drawing machine in which the lifting cylinders 110 and 120 are raised, the support plate 210 is also raised together, and at the same time the H-beam is drawn with the rise.

The web pressure plate 350 located in the center of the first and second pressing members 320 and 340 can rotate up and down 180 degrees in the center vertical direction of the first and second pressing members 320 and 340 by the hinge structure. , the hinge structure is a rotating arm member 360 fixed to the fixed hinge portions 320e and 340e of the L-shaped upper surfaces 320c and 340c of the first and second pressing members 320 and 340 and the Web pressing plate 350. ) and the hinge shaft (320g) (340g), wherein the vertical upper portion of the hinge-rotated Web pressing plate 350 is the L-shaped upper surface of the first and second pressing members 320 and 340 (320c) (340c) The vertical lower part of the hinge-rotated Web pressing plate 350 is in a state of being supported by the L-shaped vertical step (320d) and (340d) while being in a standing position in the first and second pressing members 320 and 340 in contact with the central vertical surface. On the other hand, when entering the drawing machine into the H-beam, the Web pressure plate 350 is positioned at the vertical upper part by the hinge rotation of the Web pressure plate 350, and the access passage is open and free, and when drawing, the Web pressure plate 350 ) is in contact with the central vertical surface of the first and second pressing members 320 and 340 located in the vertical lower portion, and in this state, by pressing the first and second pressing members 320 and 340, the Web pressing plate 350 H-beam drawing machine for crimping the web of the H-beam by a hinge method, characterized in that this “Web” is crimped 2. The method of claim 1
The bottom surfaces 320f and 340f of the first and second pressing members 320 and 340 that are in contact with the support upper plate 210 and are moved forward and backward by the first and second pressing cylinders 310 and 312 have a first , 2 linear induction and receiving portions 322, 342, and the upper surface portion of the support top plate 210 corresponding thereto, first and second linear induction protrusions 212 and 214 are formed, and the first and second straight lines The first and second pressure cylinders 310 and 312 are formed so that the induction protrusions 212 and 214 are assembled and coupled to each other in the first and second linear induction and receiving portions 322 and 342. Parallel to the center line (cc) of the first and second pressing members 320 and 340, the first and second linear induction and receiving portions 322 and 342 and the first and second linear induction protrusions 212 and 214 is symmetrical with respect to the center line (cc) and parallel to each other, while the pressing forward direction of the first and second pressure cylinders 310 and 312 is always maintained parallel to the center line (cc). H-beam drawing machine that presses the web of H-beam by 2. The method of claim 1

The vertical surfaces 320a and 340a of the first and second pressing members 320 and 340 have non-slip toothed portions 320b and 340b in the longitudinal direction, and the rear portion of the corresponding Web pressing plate 350 in the longitudinal direction. By a hinge method, characterized in that the rear non-slip toothed portion 354 is formed, and the non-slip toothed portion 320b, 340b and the rear non-slip toothed portion 354 are engaged and compressed with each other during drawing H- H-beam drawing machine for crimping the web of the beam 2. The method of claim 1
In the rotary arm member 360, one end is fixed to the upper surface of the web pressing plate 350, the other end is formed with a vertical rotation hinge hole 362, the vertical rotation hinge hole 362 and the first and second pressing The fixed hinge parts 320e and 340e of the members 320 and 340 form a hinge structure by the hinge shaft 364, and by the upper rotation of the rotary arm member 360, the Web pressing plate 350 is first, 2 The pressing members 320 and 340 are located in the vertical upper part to escape from the access road of the drawing machine, while the web pressing plate 350 is inserted and protruded inside the flanges on both sides of the H-beam by the lower rotation of the rotary arm member 360. At this time, H-beam drawing for compressing the web of the H-beam by a hinge method, characterized in that the compression distance from the front pressing part 352 of the web pressure plate 350 to the "Web" is minimized. energy 2. The method of claim 1
The vertical rotation of the web pressure plate 350 is made by the rotation structure at both ends of the web hydraulic cylinder, but the one-end rotation structure of the web hydraulic cylinder is in the lift up-down hole 366 of the rod of the web hydraulic cylinder and the rotating arm member 360. The web of the H-beam by a hinge method, characterized in that the other end rotational structure is made by any one of the first and second lifting cylinders 110 and 120 and the cylinder of the Web hydraulic cylinder. H-beam drawing machine for crimping 5. The method of claim 4
The first and second pressing members 320 and 340 by the first and second pressing cylinders 310 and 312 in a state in which the Web pressing plate 350 is inserted and protruded into the flanges on both sides of the H-beam by lower rotation. It is characterized in that a1-b2 and a1-b2 of the flanges (F1) and (F2) of the first and second pressing members 320 and 340 are pressed at the same time as the “Web” of the web pressing plate 350 is pressed together with the pressing. H-beam drawing machine that compresses the H-beam web by the hinge method

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