JPS5832013B2 - Sliding type deformed rebar joining machine - Google Patents

Description

[Detailed description of the invention] The present invention relates to a deformed reinforcing bar joining machine.

Since the pitch of the hoop bars attached to the reinforcing bars in a reinforced concrete structure is already sufficient, the length of the joining machine is required to be as short as possible.

If the welding machine is long, the hoops will get in the way when setting the welder, so the hoops will have to be moved temporarily.

A conventional deformed reinforcing bar joining machine for solving the above-mentioned drawbacks has a die frame 1, as shown in FIGS. 2 to 8, for example.
, the die 2 to be held on the die frame 1 , the bottom bed 3 , the tie rod 4 connecting the die frame 1 and the bottom bed 3 , and the movement along the tie rod 4 between the die frame 1 and the bottom bed 3 It consists of a freely arranged ram head 5 and a hydraulic unit 6 connected between the ram head 5 and the bottom bed 3, and the operating order thereof is as follows.

As shown in Figure 1, two deformed reinforcing bars A to be joined,
A butt them together at the center C inside the joining sleeve B.

As shown in Fig. 2, deformed reinforcing bars A
, set the welding machine so that A passes through, and insert die 2.
Attach it to the die frame 1 and place it on the left end of the sleeve B.

As shown in FIG. 3, a low barb 7 is set between the sleeve B and the ram head 5.

As shown in FIG. 4, when the hydraulic unit 6 is operated to move the piston 9 from within the cylinder block 8,
The bottom head 3 is moved to the right by a distance equal to half the length S of the sleeve B, and the die frame 1 and the die 2 are also moved to the right, so that the die 2 moves the left half of the length S of the sleeve B. is plastically deformed from its outer periphery, and the left half of the length S of the sleeve B is tightened to the deformed reinforcing bar A.

As shown in FIG. 5, return the piston 9, move the ram head 5 to the left, and remove the locking fitting 7.

As shown in FIG. 6, a tall metal fitting 10 is set between the right end of the sleeve B and the ram head 5.

As shown in FIG. 7, the hydraulic unit 6 is operated again and the die frame 1 and bottom bed 3 are moved to the sleeve B.
The sleeve B is moved to the right by a distance equal to half of the length S, and the remaining right half of the length S of the sleeve B is plastically deformed using the die 2, and is tightened to the deformed reinforcing bar A.

Return the piston 9 as shown in FIG.

As shown in FIG. 9, when the welding machine is removed, the two deformed reinforcing bars A, A are joined by the sleeve B.

Since the conventional welding machine as described above operates the hydraulic unit 6 twice, the length of the hydraulic unit 6 is sufficient, and therefore the length of the whole welding machine is relatively short. Become.

By the way, as shown in Fig. 2, the welding machine is set based on the butt point C of two deformed reinforcing bars A, A.
In that case, the length Ml of the part of the splicer to the right of the butt point C is longer than the length M2 of the part of the splicer to the left of the butt point C.

Therefore, as shown in FIG. 7, when the hydraulic unit 6 is operated again, from the butt point C to the bottom bed 3.
The distance L1 to the right side of I have to keep it.

The purpose of the present invention is to eliminate the above-mentioned drawbacks, and 2-F,
To provide a welding machine which can reduce the number of hoop bars to be temporarily moved when joining deformed reinforcing bars.

To achieve the above object, the sliding type reinforcing bar splicing machine according to the present invention includes: an anchor plate, a bottom bed, a quirod connecting the anchor plate and the bottom bed, and a space between the anchor plate and the bottom bed. a ram head movably disposed along the quill rod at the ram head, a hydraulic unit coupled to the ram head and the bottom head, and a hydraulic unit movable along the qui rod between the anchor plate and the ram head; It is characterized by comprising: a freely arranged die frame; a die to be held in the die frame; and a hook plate that can be detachably interposed between the anchor plate and the die frame. It is something.

An embodiment of the present invention will be described below with reference to the drawings.

As shown in FIGS. 10 and 11, the anchor plate 11 is U-shaped when viewed from the front, and has a gap a through which the sleeve B for joining the deformed reinforcing bars can pass. Each has a pair of through holes 12.

As shown in FIGS. 10 and 12, the bottom bed 13
is U-shaped when viewed from the front, and deformed reinforcing bar A
There is a gap through which the
It has a pair of screw holes 14.

A quirod 15 is inserted into each through hole 12 of the anchor plate 11, a threaded portion 16 at the right end of each tie rod 15 is threadedly engaged with a threaded hole 14 in the bottom bed 13, and a threaded portion 17 at the left end of each tie rod 15 is inserted into a threaded portion 16 at the right end of each tie rod 15. , the nut 18 is threadedly engaged, and the Quirod 15 is engaged with the set screw 19.
It is fixed to the anchor plate 11 by.

As shown in FIGS. 10 and 13, the ram head 20 is U-shaped when viewed from the front, has a gap through which the deformed reinforcing bar A can pass, and has a pair of through holes 21 in each of its upper and lower parts. has.

The ram head 20 is pre-arranged between the anchor plate 11 and the bottom bed 13, and the tie rods 15 are inserted into each through hole 21 of the ram head 20, so that the ram head 20 is movable along the tie rods 15.

As shown in FIGS. 10.14 and 15, the cylinder block 23 of the hydraulic unit 22 has the following characteristics when viewed from the front:
It is U-shaped, has a gap through which the deformed reinforcing bar A can pass, and has six cylinders 24 lined up in two rows on the left and right inside, and a cover plate 2 at the left end of the cylinder block 23.
5 is attached by a set screw 26.

A piston 27 is disposed within each cylinder 24, the left end of each piston 27 is attached to the ram head 20 with a set screw 28, and the right end of the cylinder block 23 is attached to the bottom bed 13 with a set screw 29.

The cylinder 24 has oil supply and discharge holes 30 and 31.

As shown in FIG. 10, on the left side of the ram head 20, a seat 32 into which the right end of the sleeve B can be fitted is attached to a set screw 3.
Installed by 3.

As shown in Figures 10.16 and 17, the die frame 34 consists of one connecting plate 35 and a pair of die supporting plates 36, and the connecting plate 35 has a U-shape when viewed from the front. Each die support plate 36 has a gap a through which the sleeve B can pass, and has a pair of through holes 37 in the upper and lower parts of the gap a.When viewed from the side, each die support plate 36 has a horizontal U-shape; The upper and lower inner surfaces 38.39 of
It has a taper to engage the splitting die 40,41.

Each die support plate 36 has through holes 4 in its upper portion.
2, with a die rod 15 on the outer surface of its lower part.
A cross section along the line has a substantially semicircular groove 43.

The left end surface of each die support plate 36 is attached to the connection plate 35 by a set screw 44, and at this time, there is a gap a between the pair of die support plates 36.

The connection plate 35 and the die support plate 36 attached thereto connect the anchor plate 11 and the ram head 2.
The through hole 37 of the connecting plate 35 and the through hole 42 of the da.
A tie rod 15 is inserted through each of the tie rods 15, so that the connecting plate 35 and the die support plate 36 are movable along the tie rod 15.

As shown in FIGS. 10 and 18, a die frame fall prevention device 45 is inserted into the tie rod 15 extending along the groove 43 of the die support plate 36.

The die frame fall prevention device 45 is made of a cylindrical member with an eccentric hole 46, and has a handle 47.

The outer surface of the die support plate 36 further has a recess 48 having a substantially semicircular cross section, with which the die frame fall prevention device 45 engages.

A low bar plate 49 shown in FIGS. 19 and 20 is provided which can be removably interposed between the anchor plate 11 and the die frame 34.

The cover plate 49 is U-shaped when viewed from the front, has a gap a through which the sleeve B can pass, and has a handle 50 at the bottom.

21 and 22 is provided, which can be detachably interposed between the anchor plate 11 and the die frame 34.

The cover plate 51 is U-shaped when viewed from the front, has a gap a through which the sleeve B can pass, and has a handle 52 at the bottom.

The support plate 36 and the ram head 20 are provided with pins 53 and 54, respectively, and a chino 55 that can be connected to these pins is provided.

As shown in FIG. 23, the splitting die 40.41 has the same width d of the connecting plate 35, ie, the width d of the die support plate 36.36 when attached to the connecting plate 35.

The operation order of the above splicing machine is as follows.

Set up the bonding machine as shown in FIG. 24.

As shown in FIG. 25, the entire joining machine is moved to the left, the seat 32 of the ram head 20 is placed on the right end of the sleeve B, and the die 4 of the die frame 34 is placed on the left end of the sleeve B.
0.41, a small gap m1 is created between the anchor plate 11 and the die frame 34.

As shown in FIG.
Set.

As shown in FIG. 27, actuate the hydraulic unit 22,
The bottom bed 13 is moved to the right by a distance equal to half the length S of the sleeve B, and the anchor plate 1
1. The cover plate 49 and the die frame 34 are also moved to the right, and the length S of the sleeve B is
The left half of the sleeve is plastically deformed from external causes, and the left half of the length S of the sleeve is tightened to the deformed reinforcing bar A.

As shown in FIG. 28, the die frame 34 and the ram head 20 are connected by a chino 55, and the hydraulic unit 22 is operated in the opposite direction to move the bottom bed 13 and the anchor plate 11 to the left, and to move the bottom bed 13 and the anchor plate 11 leftward. Remove 49.

At this time, a large gap m2 is created between the anchor plate 11 and the die frame 34.

As shown in FIG.
Set.

As shown in FIG. 30, the hydraulic unit 22 is activated again to move the bottom bed 13 to the right by a distance equal to half the length S of the sleeve B, and the anchor plate 11. The shield plate 51 and the die frame 34 are also moved to the right, and the right half of the length S of the sleeve B is plastically deformed from its outer periphery by the die 40.41, and the right half of the length S of the sleeve B is transformed into the deformed reinforcing bar A. tighten it.

As shown in FIG. 31, the hydraulic unit 22 is returned.

In this way, the two deformed reinforcing bars A, A are connected to the sleeve B.
combined by

According to the present invention, as shown in FIG. 30, when the hydraulic unit 22 is operated, the abutment point C The distance L2 from the right side of the bottom bed 13 is M 1 + S / 2- m
1 (see FIG. 24), which is considerably shorter than in the past.

Therefore, fewer hoop bars on the right side deformed reinforcing bar A need to be temporarily moved to the right.

Although the above description has been made regarding horizontally arranged deformed reinforcing bars, the same applies to vertically arranged deformed reinforcing bars.

Dice frame fall prevention device 45 by handle 47
When the die frame 34 is rotated, the thick portion around the eccentric hole 46 is pressed against the tie rod 15, so that the die frame 34 can be fixed to the tie rod 15.

In addition, the dice frame 34 and split dice 40.41
Since the width d of is relatively narrow, this joining machine can be set even when the pitch between reinforcing bars is narrow.

[Brief explanation of the drawing]

Figure 1 is a side view when two deformed reinforcing bars are butted together at the center inside the sleeve, Figures 2 to 9 show the order of conventional welding machines, and Figure 2 shows the state when the welding machine is set. Side view, Figure 3 is a side view when the low stake is set, Figure 4 is a side view when the hydraulic unit is activated, Figure 5 is a side view when the hydraulic unit is returned, Figure 6 is a side view when the hydraulic unit is returned. The figure is a side view when the high winding bracket is set, Figure 7 is a side view when the hydraulic unit is activated again, Figure 8 is a side view when the hydraulic unit is returned, and Figure 9 is a side view when the sleeve is installed. FIG. 10 is a side view of an embodiment of the present invention, FIG. 11 is a front view of the die frame, FIG. 12 is a front view of the bottom bed, and FIG. 13 is a side view of two joined deformed reinforcing bars. A front view of the ram head, Fig. 14 is a vertical side view of the hydraulic unit, Fig. 15 is a front view of the hydraulic unit, Fig. 16 is a front view of the connecting plate in the die frame, and Fig. 17 is a pair of dies in the die frame. A front view of the support plate, Fig. 18 is a sectional view of the die frame fall prevention device, Fig. 19 is a side view of the low stern plate, Fig. 20 is a front view of the low sill plate, and Fig. 21 is a high sill plate. side view of the board,
Fig. 22 is a front view of the high seam plate, Fig. 23 is a front view of the splitting die, Figs. 24 to 31 show the operating sequence of the embodiment of the present invention, and Fig. 24 is when the welding machine is set. Fig. 25 is a side view when the die is placed on the sleeve, Fig. 26 is a side view when the low baffle plate is set, Fig. 27 is a side view when the hydraulic unit is activated, Figure 28 is a side view when the hydraulic unit is returned,
Figure 9 is a side view when the high windshield board is set, No. 30
The figure is a side view when the hydraulic unit is activated again.
Figure 1 is a side view of the hydraulic unit when it is returned. 11... Anchor plate, 13...
...Bottom bed, 15...Tie rod, 20...Ram head, 22.
・・・・・・Hydraulic unit '71-134・・・・・・
・・・Dice frame, 40.41・・・・・・・・・
Dice, 51... Kamashi board.

Claims (1)

[Scope of Claims] 1. An anchor plate, a bottom bed, a tie rod connecting the anchor plate and the bottom bed, and a tie rod disposed between the anchor plate and the bottom bed so as to be movable along the tie rod. a hydraulic unit connected between the ram head and the bottom bed; a die frame movably disposed along the tie rod between the anchor plate and the ram head; A slide type deformed reinforcing bar joining machine comprising: a die to be held in a frame; and a bar plate that can be detachably interposed between the anchor plate and the die frame.