JPH07144243A - Production of x-shaped bar arrangement assembly reinforcing bar - Google Patents

Abstract

PURPOSE:To provide a producing device having a simple structure suitable for a site production of a X shaped bar arrangement assembly reinforcing bar in which both ends of each element steel bar is fixed to sides of a pair of reinforcing bar fixing frame arranged in concentric at a prescribed interval. CONSTITUTION:A pair of carriages 4 are provided in mutually movable far and near, each carriage has a rotary shaft 11 parallel to the carriage moving direction, on the rotary shaft 11, a rotating body C providing a gage plate 13 having a penetrating hole 12 for positioning end of an element steel bar 3 and cross shaped supporting arms 14a, 14b, 14c, 14d to support a reinforcing bar fixing frame 1 on the side of the front end of the rotary shaft rather than the gage plate is installed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure in which two element rebars are bent in a state in which both end portions are parallel to each other and a central portion is inclined at a predetermined angle with respect to the both end portions, and two element rebars are provided in the portion of the diagonal rebar. X-shaped rebar assembly rebar manufacturing apparatus in which both ends of each element rebar are fixed to the side surfaces of a pair of rebar fixing frames that are concentrically arranged with a predetermined interval in a state of intersecting with each other in an X shape It is about.

[0002]

2. Description of the Related Art The inventors of the present invention have developed an apparatus for manufacturing an X-shaped rebar assembly rebar, which is disclosed in Japanese Patent Application No. 3-228401.
154595). This manufacturing equipment, from the manufacturing of element rebar by bending the rebar,
This is an epoch-making fully automatic device that can automatically perform a series of processes such as supplying and welding element rebars in a fixed posture to both reinforcing bar fixed frames by computer numerical control. Since it is a large-scale device that has a supply means in a fixed posture, a welding robot, etc. as its components, not only the cost of the device itself is high, but also the device is difficult to transport, and site production of X-shaped rebar assembly rebar It was completely unsuitable for (manufacturing on site of construction site).

[0003]

SUMMARY OF THE INVENTION Therefore, according to the present invention, a prefabricated element rebar can be manually placed in an accurate position and temporarily fixed, whereby an X-shaped rebar assembly rebar is provided. The present invention aims to provide a manufacturing device having a simple structure suitable for the site production.

[0004]

[Means for Solving the Problems] The technical means taken by the present invention to achieve the above object are as follows. That is, the X-shaped rebar assembly rebar manufacturing apparatus according to the first aspect of the present invention includes two element rebars that are bent into a state in which both ends are parallel to each other and the central part is an oblique bar inclined at a predetermined angle with respect to both ends. X-shaped arrangement in which both end portions of each element rebar are fixed to the side surfaces of a pair of rebar fixing frames that are arranged concentrically with a predetermined interval in a state where they cross each other in an X shape at the diagonal rebar portion. Reinforcing bar assembly manufacturing apparatus, comprising a pair of carriages that can be moved in and out of each other, and each carriage is provided with a rotary shaft that rotates about an axis parallel to the carriage movement direction with respect to the frame of the carriage The shaft has a gauge plate having a through hole for positioning in which the end of the element reinforcing bar can be inserted and removed, and the reinforcing bar fixing frame can be detachably supported on the front end side of the rotating shaft with respect to the gauge plate, and , Cross-shaped 4
It is characterized in that a rotating body having a book support arm is provided so as to be rotatable integrally with the rotating shaft.

In the first invention, the gauge plate is configured to be reciprocally movable with respect to the rotary shaft in the axial direction of the rotary shaft, and the frame is provided on the rear surface side of the gauge plate in the axial direction of the rotary shaft. Is provided with a pressing plate that is capable of reciprocating, and that presses the end of the element rebar protruding from the through hole by the forward movement, and between the pressing plate and the gauge plate,
An interlocking coupling mechanism that transmits the reciprocating movement of the pressing plate to the gauge plate is provided, the four support arms are configured to be extendable and contractable, and two support arms that are linearly positioned relative to each other and two other support arms are provided. It is preferable to adjust the angle formed by the arm for the reason described later.

According to a second aspect of the present invention, there is provided an apparatus for manufacturing an X-shaped reinforcing bar assembly rebar in which two element rebars are bent into a state in which both ends are parallel to each other and a central part is an oblique bar inclined at a predetermined angle with respect to both ends. An X shape in which both ends of each element rebar are fixed to the side surfaces of a pair of rebar fixing frames that are arranged concentrically with a predetermined interval in a state where the two elements cross each other in the X shape at the diagonal rebar portion. A reinforcing bar assembly rebar manufacturing apparatus, comprising a pair of bogies that can move in a far-to-near manner, and each bogie is provided with a rotating shaft that rotates about an axis parallel to the bogie moving direction with respect to the frame of the bogie, On the rotating shaft, there is a gauge plate that has a holding metal for positioning that holds the end of the element rebar in a state where it can move in the axial direction, and the reinforcing bar fixing frame is removable on the front end side of the rotating shaft with respect to the gauge plate. It is possible to support A rotating body having four cross-shaped supporting arms is provided so as to be rotatable integrally with the rotating shaft, and the holding metal fittings have a virtual plane A formed by the element rebars at predetermined intervals. When the virtual plane including the axis of the rotating shaft of the bogie arranged concentrically with each other is B and the center line parallel to both ends of the element rebar is a, the virtual plane A is the virtual plane B. Is configured such that the end portions of the element reinforcing bars are held by supplying the rotating elements while maintaining the posture of the element reinforcing bars so that the center line a is located in the virtual plane B and is perpendicular to It is characterized by being done.

In the second aspect of the present invention, the holding metal fitting may be composed of a half-cylindrical member into which the end of the element reinforcing bar can be fitted, and has a round cross section having a diameter close to the diameter of the element reinforcing bar. You may comprise with a rod-shaped member (for example, screw joint reinforcement). In the latter case, the position of the holding metal fitting provided on the gauge plate is on the straight line connecting the cross-sectional center of the end of the element rebar and the rotation center of the gauge plate with respect to the regular element rebar position, and When the diameter is D ₁ and the diameter of the rod-shaped member is D ₂ , the position should be centered on the rotation center side by 1/2 of the sum of the diameters D ₁ and D ₂ from the center of the cross section of the end of the element rebar. However, it is preferable for the reason described below. A spring-made clip for elastically sandwiching the end portion of the element rebar into the half-divided tubular member or rod-shaped member so that the end portion of the element rebar can be fitted from above and free to move in the axial direction is fixed. It is preferable for the reason. Further, in the second invention, the gauge plate is configured to be capable of reciprocating in the axial direction of the rotary shaft with respect to the rotary shaft, and the forward movement of the gauge plate causes a part of the holding metal fitting to end the end portion of the element rebar. Can be pressed, or the four support arms can be extended and contracted, and the angle between two support arms that are positioned linearly with each other and the other two support arms can be adjusted. The configuration is preferable for the reason described below. In each of the first and second inventions, the reinforcing bar fixing frame may be circular or rectangular (for example, square or rectangular).

[0008]

According to the structure of the first aspect of the present invention, the two carriages are arranged at a predetermined interval, and the reinforcing bar fixing frames are respectively supported by the support arms of the rotating bodies provided on the respective carriages so that the rotating bodies are brought into a predetermined phase. In the fixed state, insert both ends of the element rebar into the through holes of the gauge plate provided in each rotating body, and then perform the same work with both rotating bodies rotated 180 degrees in the same direction. Then, in this state, the element reinforcing bar and the reinforcing bar fixing frame are fixed by means such as welding by manual work, so that an X-shaped rebar assembly reinforcing bar having an X-shaped structure surface in one direction is manufactured.

As described above, since the rotating body mounted on each trolley is provided with the gauge plate having the through hole for positioning in which the end portion of the element reinforcing bar can be inserted and removed, the CAD is performed in advance.
If the X-shaped bar is simulated at the design stage using a system, etc., the element rebar is manufactured based on it, and if a gauge plate with a through hole accurately made is made, the actual X When manufacturing shaped rebar assembly rebar, simply select the through-holes into which both ends of the element rebar are to be inserted. By simply inserting it into the appropriate through hole, the diagonal reinforcements of the predetermined element reinforcing bars intersect with each other in the X-shape to form the X-shaped structure surface.

Therefore, as a manufacturing apparatus for the X-shaped rebar assembly rebar, not only the element rebar manufacturing means but also the element rebars are fed to a predetermined position of both rebar fixing frames from a certain direction while controlling them in a certain posture. Since a complicated component is abutted on the side surface of the reinforcing bar fixing frame and the contacting part is fixed by automatic welding, complicated components are omitted, and the device can be simplified.

To take out the product from the manufacturing apparatus, the carts on both sides are moved in a direction away from each other while the center portion of the X-shaped bar assembly rebar is supported by a forklift or the like, so that both rotary bodies are X-shaped bar. It is done by pulling out from both ends of the assembled rebar.

According to the structure of the second invention, instead of providing the through holes for positioning in the gauge plate as in the first invention, the virtual planes formed by the element reinforcing bars are A and are concentric with each other at a predetermined interval. The virtual plane including the axis of the rotating shaft of the trolley arranged in a circle is B, and the center line parallel to both ends of the element reinforcing bar is a.
Then, the virtual plane A is the virtual plane B
A holding metal fitting for holding the ends of the element reinforcing bars is supplied to both rotating bodies while maintaining the posture of the element reinforcing bars so that the center line a is located in the virtual plane B and is perpendicular to the gauge. Since it is provided on the plate, it is not necessary to insert both ends of the element rebar into the through holes, and it is easy to manufacture a multidirectional X-shaped rebar assembly rebar in which the X-shaped structure surfaces are formed in multiple directions. .

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an X-shaped rebar assembly rebar manufacturing apparatus according to the first invention will be described with reference to the drawings. 1 to 9
10 shows an X-shaped rebar assembly rebar manufacturing apparatus, and FIGS.
Reference numeral 2 shows an X-shaped reinforcing bar assembly rebar manufactured by the above apparatus. The X-shaped rebar assembly rebars are welded to a pair of rectangular rebar fixing frames 1 and 1 arranged concentrically at predetermined intervals and with four sides aligned with each other, and four side corners thereof. 4 parallel reinforcements 2,2 fixed by means such as
2, 2 and both end portions 3a, 3a are parallel to each other, and the element rebars 3 that are bent into a state in which the central portion is an inclined bar 3b inclined at a predetermined angle with respect to the both ends are provided in the portion of the oblique bar 3b. Both ends 3a, 3a of each element rebar 3 are fixed to predetermined positions on the side surfaces of both rebar fixing frames 1, 1 by means such as welding in a state of intersecting with each other in an X shape. The length of the element reinforcing bar 3 is set to a length corresponding to the floor height when the column-shaped X-shaped reinforcing bar assembly reinforcing bar is targeted, and the X-shaped reinforcing bar assembly reinforcing bar for beams is targeted. In some cases, the length is set to correspond to the supporting span of the beam. As the element reinforcing bars 3, screw joint reinforcing bars are used in this embodiment.

Next, the structure of the above manufacturing apparatus will be described. In the figure, reference numeral 4 denotes a pair of carriages that can move far and far from each other along two horizontal rails 5 attached to the floor. As shown in FIGS. 2 to 5, each trolley 4 has idle wheels 6 that roll on rails 5, and pinions 8 that mesh with racks 7 that are provided between the rails 5 in parallel with the rails 5. The pinion 8 can be rotationally driven in an arbitrary direction by the output of the first motor 10a mounted on the frame 9 of the carriage 4.

Each carriage 4 has a frame 4 and a carriage 4
2 is provided with a cylindrical rotary shaft 11 that rotates about an axis parallel to the moving direction of the, and is output in an arbitrary direction by the output of the second motor 10b mounted on the frame 9, as shown in FIGS. It is configured so that it can be rotationally driven by a desired angle.

The rotating shaft 11 has a gauge plate 13 formed with a positioning through hole 12 into which the end of the element reinforcing bar 3 can be inserted and removed, and the reinforcing bar fixing frame on the front end side of the rotating shaft 11 with respect to the gauge plate 13. 1 can be detachably supported, and four cross-shaped support arms 14 are provided.
A rotating body C including a, 14b, 14c, and 14d is provided so as to be rotatable integrally with the rotating shaft 11.

Four support arms 14a, 14b, 14
c and 14d are configured to be capable of expanding and contracting in synchronization with each other, and two support arms 14a and 14a which are linearly positioned with respect to each other.
The angle between 14c and the other two support arms, 14b, 14d is adjustable, so that by adjusting the length and the angle, it is possible to deal with various rebar fixing frames 1 having different shapes and dimensions. It has become. The specific configuration is as follows.

That is, each support arm 14a, 14b, 14
c and 14d are a slide frame 15 capable of diagonally supporting the rectangular reinforcing bar fixing frame 1 from the inside, and a support frame 16 supporting the slide frame 15 movably only in the radial direction of the rotating shaft 11. I have it. A screw shaft 17 is screwed onto the slide frame 15, and a bevel gear 18 is fixed to the tip of each screw shaft 17, and each bevel gear 18 is a single drive provided inside the cylindrical rotary shaft 11. It constantly meshes with one bevel gear 20 provided at the tip of the shaft 19. A speed reducer 22 with an operating portion 21 is connected to the rear end of the drive shaft 19.

Then, by rotating the detachable handle 23 attached to the operating portion 21 or by directly operating the operating portion 21 with an appropriate tool (not shown), the drive shaft 19 can be rotated. , Via the bevel gears 20 and 18, transmitted to the screw shaft 17, and the slide frame 15 slides with respect to the support frame 16 by the screw action accompanying the rotation of the screw shaft 17, whereby the support arms 14a, 14
The lengths of b, 14c and 14d are adjusted.

Further, the support frame 16 in the two support arms 14a and 14c positioned linearly to each other is composed of the rotary shaft 11
Fixed to the other two support arms, 14b,
The support frame 16 of 14d is configured to be rotatable around the rotary shaft 11. A support frame 16 which is rotatable with respect to the rotating shaft 11.
A nut member 24 is pivotally mounted on the rotary shaft 11 so as to be rotatable around an axis parallel to the rotary shaft 11, and is fixed to the rotary shaft 11.
A head side of a hexagonal headed bolt 25 screwed with the nut-shaped member 24 is rotatably supported on the shaft 6. Then, by rotating the hexagon headed bolt 25 with a tool (not shown), one support frame 16 rotates around the rotation axis 11, and two support arms 14a and 14c positioned linearly with each other. The other two support arms, 14b, 14
The angle with d is adjusted.

Therefore, depending on the size of the reinforcing bar fixing frame 1,
When the support arms 14a, 14b, 14c, 14d are expanded and contracted and the reinforcing bar fixing frame 1 is circular or square, as shown by the solid line in FIG. When the angle formed by 14a, 14c and the other two support arms, 14b, 14d is adjusted to a right angle, and when the reinforcing bar fixing frame 1 is rectangular, as shown by phantom lines in FIG. By rotating the bolt 25, the two support arms 14a and 14c and the other two support arms,
The angle formed by 14b and 14d will be adjusted appropriately. In any case, the support arms 14a, 14b, 14
The lengths and angles of c and 14d are defined by the shape and dimensions of the reinforcing bar fixing frame 1, and numerical control by a computer is not necessary at all.

As shown in FIG. 8, the gauge plate 13 includes two plates 13 each having a semicircular cutout.
The a and 13b are connected to each other so that the semicircular cutout portion becomes a circular hole, and are fixed to the circular ring 26 with a set screw 27. 28 is two plates 13a,
A flange for connecting 13b, and a set screw 29
Are connected to each other by.

The gauge plate 13 is reciprocally movable relative to the rotary shaft 11 in the axial direction of the rotary shaft 11, and the frame 9 has a shaft core of the rotary shaft 11 on the rear surface side of the gauge plate 13. A pressing plate 30 that is capable of reciprocating in the direction and pressing the end of the element reinforcing bar 3 protruding from the through hole 12 by the forward movement is provided, and the pressing plate 30 is provided between the pressing plate 30 and the gauge plate 13. An interlocking coupling mechanism 31 is provided for transmitting the reciprocating movement to the gauge plate. More specifically, three nut members 32 rotatably supported by the frame 9 are attached with three screw shafts 33 that are screwed with the nut members 32, and are pressed against the front end of the screw shaft 33. The plate 30 is fixed.

Reference numeral 34 is a drive sprocket rotatably provided on the frame 9, and a handle 35 can be attached thereto. An endless chain 37 is stretched around a drive sprocket 34 and a passive sprocket 36 integrally provided with the nut member 32. Then, by rotating the handle 35, the passive sprocket 36 is rotated, so that the screw shafts 33 are screwed in synchronization with each other, and the pressing plate 30 is moved in the axial direction of the rotating shaft 11. There is.

On the front surface of the pressing plate 30, three guide rollers 38 having a circumferential groove are axially supported, and the circular ring 2 connected to the gauge plate 13 by these rollers 38.
6 is rotatably supported around the axis of the rotating shaft 11, and the interlocking connecting mechanism 3 is supported by the roller 38 and the circular ring 26.
Make up one. Reference numeral 39 denotes a guide rod that protrudes forward from the circular ring 26 in parallel with the rotary shaft 11, and a sleeve 41 provided on a stay 40 that extends on the rotary shaft 11.
It is slidably supported by.

The through hole 12 may be directly formed in the gauge plate 13, but in this embodiment, as shown in FIGS. 8 and 9, it has a central hole corresponding to the diameter of the element reinforcing bar 3. The male screw member 42a is inserted into the large-diameter circular hole 43 formed at a predetermined position of the gauge plate 13.
The ring-shaped nut 42b is screwed into the male screw portion projecting to the other surface side, and the through hole 12 is formed by the central hole. This is devised so that even when the element rebars 3 having different diameters are used, only the male screw member 42a can be replaced with one having a central hole corresponding to the diameter of the rebar.

Next, a method of manufacturing the X-shaped rebar assembly rebar using the above manufacturing apparatus will be described. In advance, the X-shaped bar was simulated at the design stage using a CAD system or the like, and based on that, the element reinforcing bar 3 was manufactured, and the gauge plates 13 and 13 in which the through holes 12 were formed at predetermined positions were manufactured. deep.

Then, while the element reinforcing bars 3 are carried into the site of the construction site, rails 5 are laid at appropriate places in the site, and as shown in FIG. 1, a pair of carriages 4 and 4 are provided at predetermined intervals. Are arranged facing each other, and a pair of reinforcing bar fixing frames 1 and 1 and the gauge plates 13 and 13 are set on each carriage 4.

In this state, as shown in FIGS. 13 and 15A, one end of the element reinforcing bar 3 is connected to one of the gauge plates 1.
3 is inserted into a predetermined through hole 12 and the other end is pulled back so that the other gauge plate 13 is inserted into a predetermined through hole 12. It should be noted that both gauge plates 13 have the same color such as red and red or blue and blue near the corresponding through holes 12 and 12 so that the through holes 12 into which both ends of the element reinforcing bars 3 should be inserted can be confirmed at a glance. It is desirable to write a mark or the same number. Incidentally, in FIG. 13, the reinforcing bar fixing frame 1 is omitted in the drawing.

As shown in (b) of FIGS. 14 and 15, X
After inserting both ends of one of the element reinforcing bars 3 forming the shape reinforcing bar into the predetermined through holes 12 in both gauge plates 13, the other element reinforcing bar 3 forming the X type reinforcing bar is subjected to the same work.
Set.

After that, the second motors 10b of both carriages 4 are simultaneously operated to drive the rotary shaft 11 to rotate, and as shown in FIG.
It is rotated by 80 degrees, and in this state, as shown in (b) of FIG. 16, the remaining element reinforcing bars 3 are set by the same procedure.

When all the element reinforcing bars 3 have been set, the handle 35 of the drive sprocket 34 of at least one of the bogies 4 is rotated in a predetermined direction, and the pressing plate 30 is moved forward as shown by a phantom line in FIG. By moving (advancing), the end portion of the element reinforcing bar 3 protruding from the through hole 12 of the gauge plate 13 is pressed by the pressing plate 30, and the assembly reinforcing bar of each element reinforcing bar 3 is positioned in the axial direction.

In this state, the abutting portions between the element reinforcing bars 3 and the reinforcing bar fixing frame 1 are fixed by means such as manual welding and adhesion, and the manufacture of the X-shaped rebar assembly reinforcing bars is completed.

Then, with the central portion of the X-shaped rebar assembly rebar supported by a forklift or the like, the four support arms 1
Reinforcing bar fixing frame 1 by reducing 4a, 14b, 14c, 14d
While releasing the support, the first motor 10b is operated to rotationally drive the pinion 8 in a predetermined direction, the carriages 4 are moved away from each other, and the gauge plate 13 is pulled out from both ends of the element rebar 3. The X-shaped rebar assembly rebar as shown in 10 is taken out of the apparatus by a forklift or the like.

The parallel bar arrangement 2 is shown in FIG.
As shown in (a) and (b) of 6, both ends may be inserted into the through holes at the ends of both gauge plates 13 at the same time when the element rebars 3 are set. After the X-shaped bar arrangement is completed and the assembled rebar is taken out of the manufacturing apparatus, it may be fixed to the rebar fixing frame 1 by means such as welding. In the illustrated embodiment, an X-shaped reinforcing bar composed of two element reinforcing bars 3 and 3 intersecting in an X shape at a diagonal reinforcing bar 3b is arranged at a point-symmetrical distance with respect to the cross-sectional center of the assembled reinforcing bar. The unidirectional X-shaped bar arrangement consisting of a set of four rebars spaced apart is made different in distance from the center of the cross section,
Although two sets of unidirectional multiple X-shaped reinforcing bars are provided, they do not have to be multiple. That is, the above-described manufacturing apparatus can be applied to the one-direction X-shaped bar arrangement consisting of a set of four bars in exactly the same manner. In either case, the parallel bar 2 may be omitted.

17 to 19 show an embodiment of an X-shaped assembly rebar manufacturing apparatus according to the second invention. This manufacturing equipment
Through hole 12 for positioning formed in the gauge plate 13
Further, a holding metal fitting 44 for positioning which holds the end portion of the element reinforcing bar 3 in a state in which it can move in the axial direction is attached.

As shown in FIGS. 18 and 19, the holding metal fitting 44 has a half-divided tubular member 45 into which the end 3a of the element reinforcing bar 3 can be fitted, and a screw formed on the base end side thereof. It is composed of a tubular portion 46 and a headed bolt 48 screwed into a screw hole 47 of the screw tubular portion 46. By screwing the headed bolt 48 into the screw hole 47 through the through hole 12, a holding metal fitting 44 is formed. Are fixed to the gauge plate 13. Then, as shown in FIG. 20, the virtual plane formed by the element reinforcing bars 3 is A, and the virtual plane including the axis O of the rotating body C of the bogie 4 arranged concentrically at a predetermined distance from each other is B, When the center line parallel to both ends of the element reinforcing bar 3 is a, the element reinforcing bar 3 is arranged so that the virtual plane A is perpendicular to the virtual plane B and the center line a is located in the virtual plane B. By supplying the element rebars 3 to both rotary bodies C while maintaining the posture of the element rebars 3, the end portions 3a of the element rebars 3 are stably held in a state of being fitted into the half-split cylindrical member 45. There is.

Reference numeral 49 is a half-divided tubular member 4 of the holding metal fitting 44.
5 is a numbering wire for lightly binding the end portion 3a of the element reinforcing bar 3 fitted in 5 to the half-divided tubular member 45 so as to be free to move in the axial direction, and the gauge plate 13 rotates to reverse the vertical relationship. Even if it becomes, the element rebar 3 is prevented from falling off from the half-divided tubular member 45. Also, with the end of the element reinforcing bar 3 held by the holding metal fitting 44, the gauge plate 13
By moving forward (forward) in the axial direction of the rotary shaft 11, the half-split cylindrical member 45 that is a part of the holding metal fitting 44.
The end face S of the root side of is pressed against the end of the element reinforcing bar 3 to position the assembled reinforcing bar in the axial direction. That is, the gauge plate 13 and the holding metal fitting 44 fixed to the gauge plate 13 also have the function of the pressing plate 30 in the embodiment of the first invention described above, and the pressing plate 30 is omitted to simplify the device configuration. It becomes possible.

In this embodiment, the head bolt 48 is screwed into the screw hole 47 through the through hole 12 so that the half-split cylindrical member 45 of the holding metal fitting 44 is fixed to the gauge plate 13. Cage, head bolt 4
The tip of 8 forms an end surface S that presses the end of the element reinforcing bar 3.

If the above-mentioned apparatus is used, as shown in FIG. 20, with respect to the rotating bodies C on both sides, the element reinforcing bars 3 are arranged such that the virtual plane A is perpendicular to the virtual plane B and the center line a is Each time the element rebar 3 is supplied while maintaining its posture so as to be located in the virtual plane B, and each one element rebar 3 is fixed to the gauge plate, both rotating bodies C are rotated in the same direction by a predetermined angle, and this work is performed. Is repeated in one direction (for example,
After fixing all of the element rebars 3 of the X-shaped rebar that are inclined to the lower right to the gauge plate 13, by repeating the same operation, all of the element rebars 3 that are inclined in the other direction (inclined to the left) Since the element rebars 3 do not collide with each other and become incapable of bar arrangement by fixing the to the gauge plate 13, as shown in FIG. 21 and FIG.
Multi-direction X-shaped rebar assembly in which two sets of X-shaped rebars are arranged at right angles to each other and two other sets are placed in a state of being rotated by 45 degrees with respect to these X-shaped rebars. Even rebar can be easily manufactured.

It should be noted that the illustrated half-divided tubular member 45 has a cross-sectional shape like that of a cylinder, but the half-divided tubular member 45 is not limited to this.
It may be a half-divided tubular member having a V-shaped cross section or a U-shaped cross section (the groove into which the end 3a of the element reinforcing bar 3 is fitted is V-shaped or U-shaped).

FIG. 23 shows another embodiment of the second invention.
In this embodiment, a half-divided tubular lid member 51 having a locking portion 50 is pivotally attached to one side of the half-divided tubular member 45 via a hinge so as to be openable and closable. On the other side of
A stopper 53 having a steel wire retaining ring 52 that can be engaged and disengaged with the retaining portion 50 is pivotally mounted, and the end portion 3a of the element reinforcing bar 3 is fitted into the half-divided tubular member 45. In this state, the lid member 51 is closed, and the stopper 53 fixes the lid member 51 in the closed state. Lid member 51
In the state where is fixed in the closed state, even if the rotating body C rotates and the opening of the half-divided tubular member 45 faces downward, the element rebar 3
Although it does not fall, the element rebar 3 can move to some extent in the axial direction of the rotary shaft 11. The rest of the configuration is the same as that of the previous embodiment of the second invention, so the explanation is omitted.

24 to 26 show another embodiment of the second invention. In this embodiment, the notch 54 is formed at the tip of the half-divided tubular member 45 constituting the holding fitting 44, while the end 3a of the element reinforcing bar 3 can be fitted from above and can be moved in the axial direction. A clip 55 made of a spring that elastically clamps in such a state is arranged such that the pair of clamping pieces enter the notch 54, and is fixed to the tip of the half-split tubular member 45 with a screw 56 or the like. The point is characteristic.

According to this embodiment, the end 3 of the element rebar 3 is
By simply fitting a into the half-divided tubular member 45 from above, it is elastically sandwiched by the clip 55. Therefore, the operation of binding with the number line 49 as in the previous embodiment and the lid member 51 are closed and stopped. The operation of fixing with the metal fitting 53 is unnecessary. Moreover, the end portion 3a of the element rebar 3 elastically sandwiched by the clip 55
Is held in a state in which it can be loosened to some extent in the axial direction of the rotary shaft 11 with respect to the half-split cylindrical member 45.
When the manufacturing of the shape-reinforcing bar assembly rebar is completed, the carts 4 are moved in a direction in which they are distant from each other while being held by the clip 55, and the end 3a of the element rebar 3 is pulled out from the half-divided tubular member 45 of the holding metal fitting 44. be able to. Therefore, when the X-shaped reinforcing bar assembly reinforcing bar is taken out of the apparatus, it is not necessary to remove the clip 55, loosen the wire 49, or loosen the stopper 53 to open the lid member 51. Other configurations and operations are the same as those of the previous embodiment shown in FIGS. 17 to 23, and therefore description thereof will be omitted.

27 to 32 show another embodiment of the second invention. This embodiment is characterized in that the holding metal fitting 44 is constituted by a circular rod member 57 having a cross section having a diameter close to the diameter of the element reinforcing bar 3 to simplify the structure of the holding metal fitting 44. The rod-shaped member 57 may be, for example, a round bar or a round pipe, but in the illustrated embodiment, a threaded joint bar is used so that it can be manufactured inexpensively with the same material as the element rebar. Nuts 58 and 59 are tightly connected from both sides of the gauge plate 13 in a state where the reinforcing bar is penetrated to a predetermined position of the gauge plate 13.

Then, as in the previous embodiment shown in FIG. 20, the virtual plane formed by the element reinforcing bars 3 is A, and the rotary body C of the carriage 4 arranged concentrically at a predetermined distance from each other. When the virtual plane including the axis O is B and the center line parallel to both ends of the element reinforcing bar 3 is a, the virtual plane A is perpendicular to the virtual plane B and the center line a Is located in the virtual plane B, the element rebars 3 are supplied to both the rotating bodies C while maintaining the posture of the element rebars 3 so that the ends of the element rebars 3 are held by the rod-shaped members (threaded joint rebars) 57. Is configured.

The reference numeral 60 elastically sandwiches the rod-shaped member 57 and the end portion 3a of the element reinforcing bar 3 placed thereon, and positions the element reinforcing bar end portion 3a in the horizontal direction within the virtual plane A. Gap
This is a clip made of spring that prevents the element rebar 3 from falling when the gauge plate 13 rotates and the vertical relationship is reversed. The end portion 3a of the element reinforcing bar 3 is allowed to move to some extent in the axial direction with respect to the rod-shaped member 57 in a state of being elastically sandwiched by the clip 60, and the gauge plate 13 serves as the shaft of the rotating shaft 11. By moving (advancing) in the core direction, the end surface S of the nut 59, which is a part of the holding metal fitting 44, presses the end of the element reinforcing bar 3 to position the assembled reinforcing bar in the axial direction. I am doing it.

In each of the above-described embodiments shown in FIGS. 17 to 26, the position of the holding metal fitting 44 provided on the gauge plate 13 is a regular element rebar position, that is, the penetration provided on the gauge plate 13. Although it matches the position of the hole 12, in this embodiment, the position of the holding metal fitting 44 (the position of the rod-shaped member 57) is changed to the regular element because it is necessary to hold the element reinforcing bar 3 which comes to the regular position by the rod-shaped member 57. Reinforcing bar position (Fig. 17
-From the through hole 12) in the embodiment of FIG.
It is necessary to shift by the thickness of.

In this case, for example, it is possible to set the position of the rod-shaped member 57 right below the regular element rebar position and place the end 3a of the element rebar 3 directly above the rod-shaped member 57. However, as shown in FIGS. 31 and 32, the position of the rod-shaped member 57 provided on the gauge plate 13 is
On the straight line Q connecting the cross-sectional center of the end 3a of the element reinforcing bar 3 and the rotation center of the gauge plate 13 (which coincides with the axis O of the rotating body C) P with respect to the regular element reinforcing bar position, Moreover, the diameter of the element reinforcing bar 3 is D ₁ , and the diameter of the rod-shaped member 57 is D.
_{When the number is 2} , the gauge plate 13 is manufactured by setting the position centered on the rotation center P side by 1/2 of the sum of the diameters D ₁ and D ₂ from the cross-sectional center of the end portion 3a of the element reinforcing bar 3. Is preferred for facilitating. In FIGS. 31 and 32, a hatched circle 57a indicates a rod-shaped member 57 installed on the gauge plate 13 attached to one of the rotating bodies C.
A circular mark 57b indicated by a virtual line indicates the position of the rod-shaped member 57 installed on the gauge plate 13 attached to the other rotating body C.

By setting the position of the rod-shaped member 57 provided on the gauge plate 13 in this way, the X-shaped bar is simulated in advance at the design stage using a CAD system or the like so that the element rebars do not collide with each other. Plate 1
Regular element rebar position on 3 (in each of the previous examples,
When the position of the through hole 12 formed in the gauge plate 13) is determined, the position of the rod-shaped member 57 supporting the element reinforcing bar 3 can be easily calculated, and the design and manufacture of the gauge plate 13 are facilitated.

Further, in this case, as shown in FIGS. 31 and 32, the rod-shaped member 57 supports the end portion of the element reinforcing bar 3 at a position slightly obliquely upward, not right above. Since both ends of the element rebar 3 are held by the rod-shaped members 57, 57 provided on the pair of gauge plates 13, 13 and the rebar fixing frames 1, 1 are prevented from moving inward. The holding of the element reinforcing bars 3 has no problem.

FIG. 33 shows another embodiment of the second invention.
In this embodiment, of the pair of nuts 58 and 59 for tightly connecting the rod-shaped member 57 using the threaded bar to the gauge plate 13, the flange 59a is provided as the nut 59 that comes closer to the element reinforcing bar 3 than the gauge plate 13. The nut 59
When the gauge plate 13 is moved forward (advanced) in the axial direction of the rotary shaft 11 to position the assembled rebar in the axial direction, the end face S of the flange portion 59a is used to It is characterized in that it is pressed.
The other structure is the same as that of the embodiment shown in FIGS.

In each of the embodiments shown in FIGS. 27 to 33, the clip 60 made of spring is detachably attached to the rod-shaped member 57, and the clip 60 is attached to the element reinforcing bar 3 and the rod-shaped member 57. 34, the clip 60 is elastically fitted from diagonally above (the direction parallel to the straight line Q). As shown in FIG. 34, the clip 60 is provided at the end 3a of the element rebar 3 at the regular element rebar position. Has a center of the element reinforcing bar fitting portion on a straight line Q connecting the cross-sectional center of the element and the rotation center P of the gauge plate 13, and the end portion 3a of the element reinforcing bar 3 is manufactured in a shape that can be fitted from above. , 5 on the rod 57
It may be fixed at 6, etc. In this case, FIGS.
It is possible to obtain the same effects as the embodiment shown in FIG.

[0054]

According to the first aspect of the present invention, since the rotating body mounted on each trolley is provided with the gauge plate having the through hole for positioning in which the end portion of the element reinforcing bar can be inserted / removed,
If you simulate the X-shaped bar at the design stage using a CAD system, etc. and manufacture element reinforcing bars based on it, if you make a gauge plate with a through hole accurately at a predetermined position, actually, At the time of manufacturing the X-shaped rebar assembly rebar, simply selecting the through holes into which both ends of the element rebar are to be inserted, that is, the both ends of the element rebar are connected to the through holes formed in the gauge plates on both sides. By simply inserting into an appropriate through hole, accurate bar arrangement and temporary fixing can be performed, and diagonal bars of predetermined element reinforcing bars intersect with each other in an X shape to form an X-shaped structure surface. Therefore, as a manufacturing device for the X-shaped rebar assembly rebar, not only the means for manufacturing the element rebars,
The element rebars are supplied to a predetermined position of both the reinforcing bar fixing frames from a certain direction while controlling them in a constant posture, and abutted on the side surfaces of the two reinforcing bar fixing frames, and the abutting portions are fixed by automatic welding, which is complicated and complicated. Since the constituent elements are omitted, the apparatus can be simplified, and a manufacturing apparatus having a simple structure suitable for site production of X-shaped bar assembly rebar can be realized.

According to the second aspect, after all the element rebars have been set on both the rotating bodies, the pressing plate is moved forward so that all the element rebars can be positioned at once in the axial direction of the assembled rebar. it can.

According to the third aspect, by adjusting the length and angle of the support arm, it is possible to cope with various reinforcing bar fixing frames having different shapes and dimensions.

According to the fourth aspect, the operation of inserting the end of the element reinforcing bar into the through hole of the gauge plate is not required, and the X-shaped structure surface is positioned in the vertical, horizontal and diagonal directions in a plan view. Even an X-shaped rebar assembly rebar can be easily manufactured.

According to the fifth aspect, since the holding fitting is a half-divided tubular member, the end portion of the element reinforcing bar can be held stably.

According to the sixth aspect, the operation of binding the ends of the element rebars to the half-divided tubular member with the numbered wires and the operation of fixing them with the stoppers is not required, and the manufactured X-shaped rebar assembly rebars are placed outside the apparatus. Even when taking out, it is not necessary to untie the binding by the numbered wire or remove the stopper, so that the manufacturing of the X-shaped rebar assembly rebar can be performed efficiently.

According to claim 7, the structure of the holding metal fitting is simplified and the holding metal fitting can be easily manufactured.

According to the eighth aspect, the X-shaped bar is simulated at the design stage using a CAD system or the like,
When the normal element reinforcing bar position on the gauge plate where the element reinforcing bars do not collide with each other is determined, the position of the rod-shaped member supporting the element reinforcing bar can be easily calculated, and the gauge plate can be easily designed and manufactured.

According to the ninth aspect, there is no need for an operation of binding the ends of the element rebars to the rod-shaped member with a number wire or an operation of fixing the element rebars with a stopper, and thus when the manufactured X-shaped bar assembly rebar is taken out of the apparatus. However, since it is not necessary to untie the binding by the numbered wire or remove the stopper, the X-shaped rebar assembly rebar can be efficiently manufactured.

According to the tenth aspect, the structure of the holding metal fitting is simplified, and the holding metal fitting can be manufactured easily and inexpensively.

According to the eleventh aspect, since the positioning of the element reinforcing bars in the axial direction of the assembled reinforcing bars is performed by a part of the holding metal fitting, the pressing plate can be omitted.

According to claim 12, the same effect as that of claim 3 can be obtained.

[Brief description of drawings]

FIG. 1 is an overall side view of an X-shaped rebar assembly rebar manufacturing apparatus according to the first invention.

FIG. 2 is a side view of a main part.

FIG. 3 is a plan view of a main part.

FIG. 4 is a front view of a main part.

FIG. 5 is a rear view of the main part.

FIG. 6 is a sectional view of a rotating body.

7A and 7B are explanatory views of the configuration and action of a cross-shaped support arm.

FIG. 8 is an exploded perspective view of a rotating body.

FIG. 9 is an exploded perspective view of a main part for explaining a through hole.

FIG. 10 is a perspective view of an X-shaped rebar assembly rebar manufactured by the above manufacturing apparatus.

FIG. 11 is a plan view of an X-shaped rebar assembly rebar.

FIG. 12 is a cross-sectional view of an X-shaped rebar assembly rebar.

FIG. 13 is an explanatory diagram of a manufacturing process of an X-shaped rebar assembly rebar.

FIG. 14 is an explanatory diagram of a manufacturing process of an X-shaped rebar assembly rebar.

FIG. 15 is an explanatory diagram of a manufacturing process of an X-shaped rebar assembly rebar.

FIG. 16 is an explanatory diagram of a manufacturing process of an X-shaped rebar assembly rebar.

FIG. 17 is a cross-sectional view of a rotating body in the X-shaped bar arrangement assembly rebar manufacturing apparatus according to the second invention.

FIG. 18 is a perspective view of a main part.

FIG. 19 is a cross-sectional view of a main part.

FIG. 20 is an explanatory diagram of a method of supplying element reinforcing bars to a rotating body.

FIG. 21 is a plan view of an X-shaped rebar assembly rebar manufactured by the above manufacturing apparatus.

FIG. 22 is a perspective view of an X-shaped rebar assembly rebar.

FIG. 23 is a perspective view of an essential part showing another embodiment of the second invention.

FIG. 24 is a perspective view of an essential part showing another embodiment of the second invention.

FIG. 25 is a cross-sectional view of a main part.

FIG. 26 is a cross-sectional view of a main part.

FIG. 27 is a perspective view of a main part showing another embodiment of the second invention.

FIG. 28 is a cross-sectional view of a main part.

FIG. 29 is a cross-sectional view of a main part.

FIG. 30 is a perspective view of an X-shaped rebar assembly rebar.

FIG. 31 is an explanatory diagram for explaining the position of a rod-shaped member provided on the gate plate.

FIG. 32 is an explanatory diagram for explaining the positional relationship between the end portion of the element reinforcing bar and the rod-shaped member provided on the gate plate.

FIG. 33 is a cross-sectional view of the main parts showing another embodiment of the second invention.

FIG. 34 is a cross-sectional view of an essential part showing another embodiment of the second invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Reinforcing bar fixing frame 3 ... Element reinforcing bar, 3a ... End part, 3b ... Diagonal bar, 4 ... Bogie, 11 ... Rotating shaft, 12 ... Through hole, 13 ... Gauge plate, 14a, 14b, 14c, 14d ... Support arm, 44 ... Holding metal fitting, C ... Rotating body.

Claims (12)

[Claims] 1. Element-reinforcing bars that have been bent into a state in which both end portions are parallel to each other and the central portion is inclined at a predetermined angle with respect to both end portions, and two element rebars are crossed in an X shape at the portion of the diagonal rebar. In a state, both end portions of each element rebar are fixed to the side surfaces of a pair of rebar fixing frames arranged concentrically with a predetermined interval, and an X-shaped rebar assembly rebar manufacturing apparatus is provided. Equipped with a pair of movable bogies, each bogie is provided with a rotating shaft that rotates around an axis parallel to the bogie frame in the bogie moving direction, and the end of the element rebar can be inserted into and removed from the rotating shaft. A gauge plate having a through hole for various positioning, and four crosswise support arms capable of detachably supporting the reinforcing bar fixing frame on the front end side of the rotating shaft with respect to the gauge plate. Rotate the equipped rotating body together with the rotating shaft An X-shaped rebar assembly rebar manufacturing apparatus, which is provided in a possible state. 2. The gauge plate is configured to be capable of reciprocating in the axial direction of the rotary shaft with respect to the rotary shaft, and the frame is reciprocating in the axial direction of the rotary shaft on the rear surface side of the gauge plate. A pressing plate that is capable of pressing the end of the element rebar protruding from the through hole by the forward movement,
The X-shaped rebar assembly rebar manufacturing apparatus according to claim 1, further comprising: an interlocking connection mechanism that transmits the reciprocating movement of the pressing plate to the gauge plate between the pressing plate and the gauge plate. 3. The four support arms are configured to be extendable / contractible, and the angles formed by two support arms linearly positioned relative to each other and the other two support arms are adjustable. The X-shaped rebar assembly rebar manufacturing apparatus according to claim 1 or 2, characterized in that there is. 4. Element rebars that have been bent into a state in which both ends are parallel to each other and the center part is inclined at a predetermined angle with respect to both ends are crossed in an X shape at two diagonal rebars. In a state, both end portions of each element rebar are fixed to the side surfaces of a pair of rebar fixing frames arranged concentrically with a predetermined interval, and an X-shaped rebar assembly rebar manufacturing apparatus is provided. It is equipped with a pair of movable bogies, and each bogie is provided with a rotary shaft that rotates around an axis parallel to the bogie frame in the bogie moving direction. The gauge plate having a holding metal fitting for positioning to hold it in a freely movable state, and the reinforcing bar fixing frame can be detachably supported on the front end side of the rotating shaft with respect to the gauge plate, and a cross shape can be formed. Equipped with four eggplant support arms The rolling element is provided so as to be rotatable integrally with the rotating shaft, and the holding metal fitting has an imaginary plane A formed by the element reinforcing bars, and the axis of the rotating shaft of the trolley arranged concentrically at predetermined intervals. When the virtual plane including the core is B and the center line parallel to both ends of the element reinforcing bar is a, the element reinforcing bar is
The ends of the element rebars are supplied by supplying them to both rotating bodies while maintaining the posture of the element rebars so that the virtual plane A is perpendicular to the virtual plane B and the center line a is located in the virtual plane B. An apparatus for manufacturing an X-shaped rebar assembly rebar, characterized in that 5. The manufacturing of the X-shaped rebar assembly rebar according to claim 4, wherein the holding metal member is composed of a half-divided tubular member into which an end portion of the element rebar can be fitted. apparatus. 6. A clip made of a spring is fixed to the half-cylindrical member so as to elastically clamp the end portion of the element rebar into a state in which the end portion can be fitted from above and can be moved in the axial direction. The apparatus for manufacturing the X-shaped bar arrangement assembly rebar according to claim 5. 7. The apparatus for manufacturing an X-shaped rebar assembly rebar according to claim 4, wherein the holding metal member is composed of a circular rod member having a cross section having a diameter close to that of the element rebar. 8. The position of the holding metal fitting provided on the gauge plate is on a straight line connecting the cross-sectional center of the end of the element rebar and the rotation center of the gauge plate with respect to the regular element rebar position, and Is D ₁ , the diameter of the rod is D
_When it is set to ₂ , the position is centered on the rotation center side by 1/2 of the sum of the diameters D ₁ and D ₂ from the center of the cross section of the end of the element reinforcing bar. X-shaped rebar assembly rebar manufacturing equipment. 9. A spring-made clip is fixed to the rod-shaped member so as to elastically sandwich the end portion of the element reinforcing bar in a state in which the end portion can be fitted from above and can freely move in the axial direction. The apparatus for manufacturing the X-shaped rebar assembly rebar according to claim 8. 10. A threaded link reinforcing bar is used as the rod-shaped member, and the threaded link reinforcing bar is tightly connected with nuts from both sides of the gauge plate in a state of being penetrated to a predetermined position of the gauge plate. An apparatus for manufacturing an X-shaped rebar assembly rebar according to any one of 7 to 9. 11. The gauge plate is configured to reciprocate with respect to the rotary shaft in a direction of an axis of the rotary shaft, and the forward movement of the gauge plate presses an end portion of the element reinforcing bar with a part of the holding metal fitting. The apparatus for manufacturing an X-shaped rebar assembly rebar according to any one of claims 4 to 10, which is configured to be possible. 12. The four support arms are configured to be extendable / contractible, and the angles formed by two support arms linearly positioned relative to each other and the other two support arms are adjustable. An apparatus for manufacturing an X-shaped rebar assembly rebar according to any one of claims 4 to 11, characterized in that it is present.