KR101470257B1 - Deck plate hunch device for section reinforcement and closure - Google Patents

Abstract

The present invention provides a deck plate haunch apparatus for reinforcing and closing the end capable of increasing the end reinforcing force more, and improving the productivity by discharging a deck plate after the deck plate whose forming is completed is cut while the deck plate is continuously transferred, and the ends of the both cut sides are haunch-bent at the same time. According to an embodiment of the present invention, the haunch apparatus for reinforcing and closing the end of the formed deck plate comprises: a bed installed in the transfer direction of the deck plate; a carriage sliding-combined with the bed, and installed to be reciprocated in the transfer direction of the deck plate; a fixing side lower mold and a moving side lower mold installed in the upper side of the carriage by being aligned in the transfer direction of the deck plate; a deck plate transferring clamp unit installed in the leading end of the bed to fix the end of one side of the deck plate whose transferring is completed for haunch bending processing; a deck plate cutting unit installed in the rear end of the carriage to form a cut side divided into both sides by cutting the deck plate whose transferring is completed into a predetermined length; a carriage transferring means to transfer the carriage to a haunch working position in order to locate the divided cut side of the deck plate between the fixing side lower mold and the moving side lower mold; and an upper haunch hydraulic assembly supported and installed above the carriage to form the closed end by bending both cut ends after fixing the deck plate which reaches the haunch location.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a deck plate hunch device for end reinforcement and closure,

The present invention relates to a tearing apparatus for reinforcing an end portion of a deck plate, and more particularly to a deck plate tearing apparatus for end reinforcement and closing such that a cross-section reinforcing plate closed at the time of simultaneous bending is formed on both cut surfaces.

Generally, the deck plate is formed into a trapezoid or a square cross-section so as to increase the stiffness in the out-of-plane direction and the inner buckling in the longitudinal direction. At this time, the end of the deck plate is made open. Therefore, if the deck plate with open end is constructed between beams, a separate formwork should be used for casting concrete. To this end, the deck plate has to be closed at its ends, and a tipping device is required to make the closed end.

Korean Patent Registration No. 10-0235157 discloses a technology for bending an end portion of a deck plate so as to shield a space between an upper plate and a lower plate in a process of manufacturing a deck plate, There has been proposed a deck plate end bending apparatus for preventing a pouring water from being introduced.

It consists of a support consisting of upper, lower and intermediate molds of a predetermined size; Means mounted on one side of the intermediate frame of the support to allow the deck plate to enter the tip bend position; First stop means for blocking and stopping the leading end of the deck plate transferred by the entry means; A first bending unit mounted on the first stopping unit and fixing the deck plate while vertically moving up and down, Means for sensing a rear end of a deck plate being mounted on a conveyance path of one side of the first bending means; A reversing roller mounted on the other end of the intermediate frame of the support and rotated in the forward and reverse directions in accordance with a sensing signal of the sensing means; Second stop means for closing and stopping the rear end portion of the backward deck plate by driving the reversing roller; And a second bending unit mounted on the second stopping unit and fixing the deck plate while vertically moving up and down, and then pressing and pressing a predetermined portion of the rear end thereof.

The background art produces a product by transferring a deck plate while bending a predetermined portion of its front end and rear end. In this case, since the deck plate must be used separately, it takes a long time to work because it needs to bend and separate the front and rear ends. Also, since each end is subjected to one bending process, the end portion is blocked, but there is a limit in increasing the bending strength.

Korean Unexamined Patent Publication No. 1999-0050971 (deck plate line) Korean Unexamined Patent Publication No. 1999-0050972 (terminal and cutting device of deck plate line)

Therefore, according to the present invention, it is possible to prevent the deck plate from being damaged during continuous feeding of the deck plate after completion of forming, And a deck plate tachometer.

According to a preferred embodiment of the present invention,

A tacking apparatus for end reinforcement and closing of a formed deck plate,

A bed installed in the conveying direction of the deck plate;

A reciprocating table slidably coupled to the bed, the reciprocating table being reciprocally movable in a conveying direction of the deck plate;

A stationary-side lower mold and a movable-side lower mold arranged in the direction of conveyance of the deck plate on the upper surface of the carriage;

A deck plate conveying clamp unit installed at a front end of the bed to fix one end of the deck plate which has been conveyed for tangential bending;

A deck plate cutting unit installed at a rear end of the reciprocating unit to cut a predetermined length of the deck plate after completion of feeding to form a cut surface divided on both sides;

Reciprocal conveying means for conveying the reciprocating unit to the hunting operation position so that the divided cut surface of the deck plate is positioned between the fixed-side lower mold and the movable-side lower mold;

And an upper kneading and hydraulic assembly for supporting the deck plate which is supported above the shuttle and reaches the hitting position, and then bending and bending both cut ends to form a closed end.

The fixed-side lower mold and the movable-side lower mold have the same inclination angle as that of the deck plate and are inclined at the same angle on the mutually facing surfaces.

Further, in the deck plate feed clamp unit,

A pair of guide shafts provided on one upper surface of the bed;

A cylinder support provided at an upper end of the guide shaft;

A transfer clamp cylinder vertically installed on the cylinder support;

And a stopper slidably coupled to the pair of guide shafts and connected to the operation rod of the feed clamp cylinder.

Further, in the deck plate cutting unit,

A cutter housing having a cutting hole for receiving the cross-sectional shape of the deck plate;

A cutter for cutting a deck plate installed inside the cutter housing;

A cutting cylinder supported on the reciprocating unit to generate a cutting force on the cutter for cutting the deck plate;

And a cutter return spring installed inside the cutter housing to return the cutter for cutting the deck plate to an original position after cutting operation.

The upper hunting hydraulic assembly may further include:

An upper support which is supported at a predetermined height above the shuttle;

A deck plate hatching clamp unit installed on the upper support to fix a deck plate reaching a hitting position;

A deck plate end side plate bending unit which is operated in a direction perpendicular to the conveyance direction of the deck plate after the clamping operation of the deck plate upper clamp unit to primarily bend both side plates of both cut ends of the deck plate;

And a deck plate end upper plate bending unit for bending the upper ends of the cut ends of the deck plate in a secondary direction downwardly.

Further, in the deck plate hatching clamp unit,

A pair of vertical pulling clamp cylinders vertically mounted on the upper support;

And a hatching clamp block connected to the actuating rods of the pair of vertical hunting clamp cylinders to engage the fixed-side lower mold and the movable-side lower mold to fix the deck plate reaching the hitting position.

Further, in the deck plate end side plate bending unit,

A side plate hunting cylinder fixed to both sides of the clamp block of the deck plate hatching clamp unit so as to face each other;

And a side plate pusher connected to the operating rod of the side plate hitting cylinder and moving back and forth.

Further, in the deck plate end upper plate bending unit,

A top plate kneading cylinder vertically installed at the center of the upper support;

And an upper mold connected to the operating rod of the upper plate hatching cylinder to bend and bend the upper plate of both the cut-off portions of the deck plate downward during the lowering operation.

The movable-side lower mold is connected to a movable-side lower mold lifting cylinder fixedly mounted on the reciprocating unit so as to be movable in the up-and-down direction and to move down after the deck plate has been hammered.

According to the deck plate hopper for end reinforcement and closure of the present invention, the formed deck plate is cut while being conveyed, and the bending is simultaneously performed on the both cut sides, so that the productivity is greatly improved. In addition, by bending the side plate and the upper plate separately during bending of the tie, end torsion strength is increased and a cross-section reinforcing plate for closing the open end is formed, thereby eliminating the need to use a separate die at the time of slab construction.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments of the invention and, together with the description, serve to explain the principles of the invention, Shall not be construed as limiting.
BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a front view of a deck plate tearing apparatus according to the present invention, in which the carriage is transported to a cutting position; Fig.
2 is a plan view of Fig.
Fig. 3 is a side view of Fig. 1; Fig.
4 is a partially enlarged view of Fig.
5 is a front view of the deck plate tearing apparatus according to the present invention, in which the shuttle is transferred to the tacking work position.
Figure 6 is a side view of the deck plate transfer clamping unit in Figure 1;
Fig. 7 is a view showing the deck plate holding clamp unit and the upper mold separated from each other in Fig. 1; Fig.
Fig. 8 is a schematic perspective view of the parts for performing the hauling operation of the deck plate in Fig. 5; Fig.
Fig. 9 is a perspective view for explaining the cutting position and bending and bending state of the deck plate at the swing working position in Fig. 8; Fig.
10 is a perspective view of a decking plate that has been subjected to forming;
Fig. 11 is a perspective view of the deck plate completed. Fig.
12 is a photograph of an end of the decked deck plate;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the embodiments shown in the accompanying drawings, but the present invention is not limited thereto.

The deck plate built-up device according to the present invention can be manufactured by bending and firing the deck plate 5, which is formed from a well-known foaming device, which is not shown in FIG. 10, End reinforcing plates 5a and 5b for closing the end faces at both ends thereof.

First, as shown in Figs. 1 to 3, the bed 12 is fixedly installed on the floor of the installation, which is positioned in the direction of conveyance of the deck plate 5 that has been completed.

The bed (12) is provided with a carriage (14). The carriage 14 is slidably engaged with the bed 12 and is reciprocated in the conveying direction of the deck plate 5. The carriage 14 slides along the linear guide 15 provided on the upper surface of the bed 12.

The stationary-side lower mold 16 and the movable-side lower mold 18 are mounted on the upper surface of the carriage 14. The fixed-side lower mold 16 and the movable-side lower mold 18 are aligned in a line along the conveying direction of the deck plate 5 to face each other. At this time, the stationary side lower mold 16 is located on the side where the deck plate is carried in the apparatus and the movable side lower mold 18 is located on the side where the deck plate is taken out. The fixed-side lower mold 16 and the movable-side lower mold 18 each have the same inclined surfaces 161 and 181 as the deck plate 5 and inclined at the same inclination angle? At this time, the inclination angle? Has a range of 30 ° <θ <60 °, and is set to 45 ° in the present embodiment. As described above, the reason why the pair of stationary-side lower molds 16 and the movable-side lower molds 18 are provided in the present invention is for bending and bending both ends simultaneously at the cut surface of the deck plate.

Here, the movable-side lower mold 18 is movable vertically and vertically. The movable-side lower mold elevating cylinder 18 is fixed to the reciprocating table 14 so as to be lowered after the deck plate 5 is bent (bent) (19). The movable lower mold elevating cylinder 19 descends the movable side lower mold 18 after the deck plate 5 is completely bent to eject the deck plate 5 to one side (right side in the drawing) of the carriage 14 So that it can be used.

A deck plate feeding clamp unit 20 is provided at the front end of the bed 12 (the side from which the deck plate is ejected). The deck plate conveying clamp unit 20 fixes one end of the deck plate 5 that has been conveyed to the fixed side lower mold 16 and the movable side lower mold 18 for the purpose of tearing the deck plate.

The deck plate conveying clamp unit 20 includes a lower pedestal 21 provided on one upper surface of the bed 12, a pair of guide shafts 22 installed on the upper surface of the lower pedestal 21, A feed clamp cylinder 26 installed vertically to the cylinder support 24 and a stopper 28 connected to the operation rod of the feed clamp cylinder 26 slidingly coupled to the pair of guide axes 22 ). Therefore, in the lowering operation of the feed clamp cylinder 26, the stopper 28 fixes the deck plate in the form of ∩ at its both ends by receiving the wings of both sides of the deck plate 5.

A deck plate cutting unit 30 is provided at the rear end (on the side where the deck plate is loaded) of the carriage 14. The deck plate cutting unit 30 retracts the reciprocating table 14 to cut the other end (opposite end of the fixed end) of the deck plate 5 to form two cut surfaces that are divided into two at the same time.

4, the deck plate cutting unit 30 includes a cutter housing 32 having a cut hole for receiving the cross-sectional shape of the deck plate 5, a cutter 34 for cutting a deck plate 34 provided inside the cutter housing 32 A pair of cutting cylinders 36 supported by the carriage 14 for generating a cutting force on the deck plate cutting cutter 34 and a pair of cutting cylinders 36 provided inside the cutter housing 32, And a cutter return spring (38) for returning the cutter return spring (34) to its original position after cutting operation. The pair of cutting cylinders 36 are vertically provided on the side of the upper support 520 to be described later.

A reciprocating transferring cylinder 40 is provided as a reciprocating transferring means for transferring the tactile bending position of the reciprocating table 14 to the cutting position Z. [ The hitting bending position means an intermediate position between the upper mold 574 and the lower molds 16 and 18. The reciprocating transfer cylinder 40 has a fixed end connected to the bed 12 and an actuating rod connected to the carriage 14. Thus, the reciprocating transfer cylinder 40 transfers the reciprocating stage 14 to the cutting position or the hitting position. That is, the reciprocating transfer cylinder 40 advances and feeds the reciprocating stage 14 in the carrying-out direction to determine the cutting position of the deck plate cutting unit 30 as shown in Fig. 1, and further moves the reciprocating stage 14 backward As shown in Fig. 5, the divided cutting surface of the deck plate 5 is positioned between the stationary-side lower mold 16 and the movable-side lower mold 18 to determine the working position for tucker bending do.

An upper hunting hydraulic assembly 50 is provided above the reciprocating table 14. The upper hunting hydraulic assembly 50 fixes the deck plate 5 which has reached the hitting bending position and then bends and bends both cutting ends one or two times to form a closed end.

The upper hunting hydraulic assembly 50 includes an upper supporter 520 installed at an upper end of a plurality of vertical supports 17 vertically installed in the reciprocating table 14 and supported at a predetermined height above the reciprocating table 14, A deck plate hitch clamp unit 540 installed on the upper supporter 520 for fixing the deck plate 5 which has reached the hitch bending position and a deck plate hitch clamp unit 540 for fixing the deck plate 5 in the conveying direction of the deck plate after the clamping operation of the deck plate hitch clamp unit 540 A deck plate end side plate bending unit 560 which firstly bends both side plates 5a and 5a at both cut ends of the deck plate 5 while operating in a direction perpendicular to the top end of the deck plate 5, And a deck plate end top plate bending unit 570 that secondarily bends downwardly the upper plate 5b.

4, the deck plate hitch clamp unit 540 includes a pair of vertical hitch clamp cylinders 542 vertically installed on the upper support 52 and a pair of vertical hitch clamp cylinders 542 connected to the operation rods of the pair of vertical hitch clamp cylinders 542 And a hatching clamp block 546 for fixing the deck plate 5 which has reached the hitting position by engaging with the fixed side lower mold 16 and the movable side lower mold 18. At this time, the lower part of the hatching clamp block 546 has a groove shape opened downward along the cross-sectional shape of the deck plate.

4 and 8, the deck plate end side plate bending unit 560 includes a pair of side plate hammering cylinders 562 fixed to both sides of the clamp block 546 of the deck plate hammering clamp unit 540, And a side plate pusher 564 connected to the respective actuating rods of the pair of side plate hunting cylinders 562 to move back and forth. At this time, the side plate pusher 564 is positioned on the side of the deck plate.

The deck plate end top plate bending unit 570 includes a top plate hitting cylinder 572 vertically installed at the center of the top support 520 and a top plate hacking cylinder 572 connected to the operating rod of the top plate hitting cylinder 572, And an upper mold 574 which bends and bends downward. At this time, the upper plate knocking cylinder 572 is disposed between the pair of vertical knocking clamp cylinders 542. The upper mold 574 is located at the center of the hatching clamp block 546 and is movable up and down. 7, the upper mold 574 has tilt slopes 574a and 574a formed at both sides thereof at the same inclination angle as the inclination angle? Of the fixed-side lower mold 16 and the movable-side lower mold 18.

In the present embodiment, a hydraulic pump system for driving various cylinders and a sensing sensor are provided to control the operation period of the cylinder. The construction of the hydraulic pump system and the installation of the detection sensor are well known in the art for controlling the cylinders, and thus a detailed description thereof will be omitted.

The operating state of the deck plate tilting process using the thus configured embodiment will be described.

Shuttlecock  Forward movement

1, the operating rod is extended by the reciprocating conveying cylinder 40 so that the reciprocating unit 14 moves forward in the direction of ejecting (discharging) the deck plate, whereby the deck plate cutting unit 30 is moved forward And is in the standby state at the machining position line Z on the side of the machining center 12 side.

At this time, the upper knocking hydraulic assembly 50 is also moved together with the reciprocating belt 14, and then the pair of vertical knocking clamp cylinders 542 and the upper knocking cylinder 572 are lifted up by the hatching clamp block 546 and the upper The mold 574 is moved upwardly. Therefore, it is possible to allow the deck plate to enter between the lower molds 16 and 18 and the upper mold 574.

In this state, the formed deck plate 5 is fed as shown in Fig. 10, and its tip end is fixed by the deck plate feed clamp unit 20 through the reciprocating table 14. Fig. That is, by the operation of the feed clamp cylinder 26, the stopper 28 is lowered and the deck plate 5 is fixed.

Deck plate  cut

Next, the deck plate cutting unit 30 is operated to cut the deck plate. This is accomplished by the pair of cutting cylinders 36 being lowered to press the cutter 34 for cutting. Therefore, the deck plate is cut at a predetermined length as shown in Fig.

Shuttlecock  Move backward

Then, the reciprocating transfer cylinder 40 is operated to move the reciprocating carriage 14 in the carrying-in direction as shown in Fig. The center axis of the upper plate hitting cylinder 572 is placed on the machining position line Z so that both the cut surfaces of the deck plate 5 are pressed against the fixed side lower mold 16 and the movable side lower mold 18 . That is, both cut surfaces of the deck plate 5 reach the tuck bending position.

Deck plate Clamping

Then, a pair of vertical hatching clamp cylinders 542 are operated to descend. The clamp block 546 connected to the vertical pulling clamp cylinder 542 is lowered to engage the fixed side lower mold 16 and the movable side lower mold 18 so that the deck plate 5 is firmly fixed.

End shroud Hunting Bending

Then, the opposite pair of side plate hunting cylinders 562 are advanced. 9, the side plate pushers 564 connected to the operating rods of the pair of side plate hunting cylinders 562 move simultaneously to the center axis of conveyance of the deck plate so that the side plates 5a, Is bent. Then, the side plate hitting cylinder 562 is retracted to return the side plate pusher 564 to the original position.

End  Top plate Hunting Bending

Then, the upper plate hitting cylinder 572 is operated so that the upper mold 574 is lowered and engaged with the fixed side lower mold 16 and the movable side lower mold 18. [ As a result, the upper side plates 5b on both cut surfaces of the deck plate are bent and bent downward as shown in Fig. When the bending and bending is completed, the upper mold 574 is moved upward by the reverse operation of the upper plate knocking cylinder 572. Thereafter, the vertical pulling clamp cylinder 542 is also reversed, so that the clamp block 546 is moved upward and the fixing force of the deck plate 5 is released.

When the end shroud hatching and bending process of the end plates are completed in this manner, the cross-section reinforcing plates 5a and 5b, which are folded as shown in Fig. 11 and partially overlapped, are simultaneously formed on both cut surfaces of the deck plate 5, do. That is, in the process of bending the deck plate, the two end portions of both sides are simultaneously closed.

Hunting  Machined Deck plate  exhaust

Then, the movable-side lower mold elevating cylinder 19 is operated and the movable-side lower mold 18 is moved down. Therefore, the obstacle obstructed in the discharge direction of the deck plate 5 is eliminated. Thereafter, the deck plate is fed from the deck plate forming apparatus side, and the deck plate knocked at the end is discharged in the unloading direction.

Thereafter, the cycle is repeated, and the deck plate is continuously manufactured with the end closed. That is, the deck plate having the closed end is manufactured while the cutting, tucker bending, and discharging processes of the formed deck plate continue progressively.

As described above, according to the present invention, the cross-section reinforcing plates 5a and 5b for simultaneously closing the end portions of the deck plate are formed at both sides of the cut surface of the deck plate, thereby improving the productivity and obtaining good quality. In particular, since the closed end face reinforcing plates 5a and 5b are partially overlapped and reinforced at the end portions of the deck plate, the reinforcement plates can have a reinforced structure, and the work of closing the end portions as in the conventional case at the time of slab construction is eliminated, .

Meanwhile, in the operation of the present apparatus, the upper mold 574 may be first lowered and then the side plate pusher 564 may be advanced to form the end face reinforcing plates 5a and 5b.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the above teachings. will be. The invention is not limited by these variations and modifications, but is limited only by the claims appended hereto.

12: Bed
14: Shuttle
16: Fixed side lower mold
18: movable side lower mold
19: Moving side lower mold lifting cylinder
20: Deck plate feed clamp unit
30: Deck plate cutting unit
32: Housing of cutter
34: Cutter for cutting
36: Cutting cylinder
40: reciprocating transfer cylinder
50: upper hunting hydraulic assembly
520: upper support
540: Deck plate hatch clamp unit
542: Vertical swing clamp cylinder
546: Clamp block
560: Deck plate end side plate bending unit
562: Shrouded hatch cylinder
564: side plate pusher
570: deck plate end top plate bending unit
572: Top plate hatching cylinder
574: upper mold

Claims (9)

A tacking apparatus for end reinforcement and closing of a formed deck plate,
A bed (12) installed in the conveying direction of the deck plate (5);
A reciprocating table (14) slidably coupled to the bed (12) and reciprocally movable in a conveying direction of the deck plate (5);
A fixed-side lower mold 16 and a movable-side lower mold 18 arranged in the direction of conveyance of the deck plate 5 on the upper surface of the reciprocating table 14;
A deck plate conveying clamp unit 20 installed at a front end of the bed 12 for fixing one end of the deck plate 5 that has been conveyed for the purpose of a tangential bending operation;
A deck plate cutting unit 30 installed at a rear end of the reciprocating table 14 to cut a predetermined length of the deck plate to form divided cutting surfaces on both sides;
And a reciprocating transfer cylinder 40 for transferring the reciprocating stage 14 to the hitching operation position so that the divided cut surface of the deck plate 5 is positioned between the fixed side lower mold 16 and the movable side lower mold 18. [ )Wow;
And an upper knocking hydraulic assembly (50) which is installed above the reciprocating stage (14) and fixes the deck plate (5) reaching the hitting position and then bends and bends both cut ends to form a closed end Characterized by a deck plate hopper for end reinforcement and closing. The method according to claim 1,
The fixed side lower mold 16 and the movable side lower mold 18 are each provided with hatch inclined surfaces 161 and 181 having the same cross sectional shape as the deck plate 5 and inclined at the same angle on mutually facing surfaces Deck plate tappet for end reinforcement and closing. The method according to claim 1,
The deck plate feed clamp unit 20,
A pair of guide shafts (22) provided on one upper surface of the bed (12);
A cylinder support 24 provided at an upper end of the guide shaft 22;
A transfer clamp cylinder (26) vertically mounted on the cylinder support (24);
And a stopper (28) slidably coupled to the pair of guide shafts (22) and connected to the operating rod of the feed clamping cylinder (26). The method according to claim 1,
The deck plate cutting unit (30)
A cutter housing (32) having a cutting hole for receiving a cross-sectional shape of the deck plate (5);
A cutter 34 for cutting a deck plate installed inside the cutter housing 32;
A cutting cylinder (36) supported by the reciprocating table (14) for generating a cutting force on the cutter (34) for cutting the deck plate;
And a cutter return spring (38) installed inside the cutter housing (32) for returning the cutter (34) to a home position after cutting operation of the deck plate cutting cutter (34). The method according to claim 1,
The upper hunting hydraulic assembly (50)
An upper supporter 520 supported at a predetermined height above the reciprocating table 14;
A deck plate hitch clamp unit 540 installed on the upper support 520 for fixing the deck plate 5 reaching the hitting position;
A deck plate end side plate bending unit 560 that operates in a direction perpendicular to the conveying direction of the deck plate 5 after the clamping operation of the deck plate retracting clamp unit 540 to primarily bend both side plates of both cut ends of the deck plate 5 )and;
And a deck plate end top plate bending unit (570) for secondarily bending the top end plates of both cut ends of the deck plate (5) downwardly. 6. The method of claim 5,
The deck plate retracting clamp unit 540 includes:
A pair of vertical pulling clamp cylinders 542 vertically installed on the upper support 520;
The deck plate 5, which is connected to the operating rods of the pair of vertical hunting clamp cylinders 542 and is engaged with the stationary side lower mold 16 and the movable side lower mold 18 to reach the knocking position, Characterized in that it comprises a hatching clamp block (546) which is adapted to engage and disengage the deck plate. 6. The method of claim 5,
The deck plate end side plate bending unit 560,
A side plate hunting cylinder 562 fixed to opposite sides of the clamp block 546 of the deck plate hunting clamp unit 540;
And a side plate pusher (564) connected to the actuating rod of the side plate hunting cylinder (562) and moving back and forth. 6. The method of claim 5,
The deck plate end top plate bending unit 570 includes:
A top plate hunting cylinder 572 vertically installed at the center of the upper support 520;
And an upper mold (574) connected to the operating rod of the upper plate hunting cylinder (572) for bending and bending down the upper plate of both the cut portions of the deck plate in the lowering operation. The method according to claim 1,
The movable-side lower mold 18 is connected to a movable-side lower mold lifting cylinder 19 which is movably provided in the vertical direction and which is fixed to the reciprocating table 14 so as to be lowered after the deck plate has been hammered Characterized by a deck plate hopper for end reinforcement and closing.

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