JP2012036667A - Device and method for assembling reinforcement cage - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device and a method, which enable efficient and easy assembly of a reinforcement cage for a cast-in-place concrete pile.SOLUTION: A device for assembling a reinforcement cage includes: hoop reinforcement holding means 2 for horizontally and preliminarily holding a plurality of hoop reinforcements 80 in the state of disposing them at predetermined spacings; main reinforcement holding arms 3 which are disposed in a plurality of locations among the disposed hoop reinforcements 80, respectively, and the top surfaces of which are provided with placement surfaces longer than an outside diameter of the hoop reinforcement 80 in a horizontal direction orthogonal to the longitudinal direction of the disposition of the hoop reinforcement 80; and main reinforcement hoisting and lowering means 4 for vertically hoisting and lowering the main reinforcement holding arms 3.

Description

  The present invention relates to an apparatus and method for assembling reinforcing bar rods such as cast-in-place concrete piles.

  Japanese Laid-Open Patent Publication No. 2001-96331 (Prior Art 1) or Japanese Laid-Open Patent Publication No. 8-229627 (Prior Art 2) is disclosed as a prior art of a reinforcing bar assembly apparatus.

  Japanese Patent Laid-Open No. 2001-96331 (Prior Art 1) states that “a plurality of annular strips (B2) are arranged in advance at a predetermined pitch, and a long main strip (B1) is described above. Inside the virtual cylinder formed by a plurality of annular strips (B2), a main muscle feeding step for feeding out in parallel to the center line thereof, a main bar pulling-in step for bringing the main rod (B1) into close contact with the strap (B2), and a main rod Reinforcement rod rotation that rotates (B1) and the rebar (B2) in the connecting step, and the rebar (B2) connected to the main rebar (B1) in the circumferential direction to the position where the next main rebar (B1) is connected There is disclosed a method of manufacturing a cylindrical reinforcing bar scissors comprising steps, wherein the above steps are sequentially repeated to obtain a cylindrical reinforcing bar scissors.

  Japanese Patent Laid-Open No. 8-229627 (Prior Art 2) states that, in manufacturing a reinforcing bar rod having a main reinforcing bar and a shear reinforcing bar, In a support stand for manufacturing reinforcing bars that hold the main bar at a predetermined height, a stand that can be erected on the floor surface, a female screw member that is provided on the top of the stand and whose axis is directed vertically A support stand for manufacturing a reinforcing bar rod, comprising: a screw rod that is screwed to the female screw member and is movable up and down according to its own rotation; and a receiving portion provided at the upper end of the screw rod. Is disclosed.

JP 2001-96331 A (Prior Art 1) JP-A-8-229627 (Prior Art 2)

  A steel bar such as cast-in-place concrete pile is composed of a plurality of annular hoop bars and a plurality of long main bars fixed perpendicularly to the hoop bars on the inner peripheral surface of the hoop bars. Is fixed and manufactured by welding or fastening. Although there are simple assembly jigs, multiple workers are performing them manually, and the assembly jigs must be manufactured according to the specifications of the rebar rod. Has a problem that a lot of labor is required, work efficiency is very bad, and assembly time is long.

  The structure of the prior art 1 is a circumferential direction to a position where a band is placed, a main bar feeding process for feeding the main bar to the inner side of the band, a main bar pulling process, a coupling process thereof, and a position for coupling the next main muscle. It is composed of a rebar rod rotation process to rotate, and when rotating a heavy steel rod rod, it is necessary to rotate it while holding the main bars connected to a large number of straps, making the device complicated and different in diameter There is a problem that it is not easy to deal with objects and horn-shaped streaks, and the production costs a lot.

  Moreover, in the case of the prior art 2, although it is possible to improve an assembly precision with a support stand, it is necessary for a plurality of workers to assemble heavy shear reinforcement bars and main bars manually by the same process as the conventional technique.

  Therefore, an object of the present invention is to provide an apparatus and a method for easily and efficiently manufacturing a reinforcing bar assembling operation at a low cost and in a short time.

  In order to solve the above problems, an apparatus for assembling a reinforcing bar rod comprising a plurality of annular hoop muscles and a plurality of elongated main bars fixed perpendicularly to the hoop muscles on the inner peripheral surface of the hoop muscles. The hoop muscle holding means for arranging and holding a plurality of hoop muscles at predetermined intervals in the horizontal direction and the hoop muscles arranged in a plurality of locations between the hoop muscles and the hoop muscles arranged in the longitudinal direction. A reinforcing bar cage assembling apparatus comprising a main bar holding arm having a mounting surface on the upper surface that is longer than the outer diameter of the hoop bar in the horizontal direction perpendicular to the main bar, and a main bar lifting means for moving the main bar holding arm in the vertical direction. suggest. The upper surface of the main muscle holding arm has a rotation axis in a direction perpendicular to the hoop muscle arrangement direction, and is provided with a cylindrical roller for moving the main muscle in the hoop muscle arrangement direction. Proposed is the above-described reinforcing bar assembling apparatus, characterized in that a feeding means for moving the main bar is provided on one end side in the direction. Further, the above-described reinforcing bar scissor assembling apparatus is proposed in which a positioning contact plate for a reinforcing bar scissor end face is vertically provided on one end side in the longitudinal direction of the hoop bar arrangement. Furthermore, the hoop bar holding means is provided in any one of the above-mentioned reinforcing bar rod assembling apparatuses, characterized in that the position of the holding part can be adjusted according to the size of each hoop bar. Furthermore, a method for assembling a reinforcing bar rod comprising a plurality of annular hoop bars and a plurality of long main bars fixed to the inner peripheral surface of the hoop bars perpendicular to the hoop bars, A hoop muscle arrangement step for arranging and holding the hoop muscles at predetermined intervals in the horizontal direction, and a horizontal direction that is arranged at a plurality of positions between the hoop muscles arranged and the hoop muscle arrangement longitudinal direction. The main muscle is placed on the upper surface of the main muscle holding arm that has a mounting surface longer than the outer diameter of the hoop muscle on the upper surface, and the main muscle insertion step of moving the inside of the hoop muscle in the hoop muscle arrangement longitudinal direction, and raising and lowering the inserted main muscle to the main muscle A method for assembling a reinforcing bar rod including a main bar fixing step of moving the bar up and down by means and fixing the main bar at a position where it is attached to the hoop bar is proposed.

  According to the present invention, the hoop muscles can be accurately arranged and held at predetermined intervals in the horizontal direction by the hoop muscle holding means, and the main muscle holding arms arranged at a plurality of positions between the hoop muscles are long. It is possible to hold the main muscle of the main body horizontally while suppressing the bending, and by providing the main muscle lifting means for raising and lowering the main muscle holding arm in the vertical direction, it can be easily positioned at a fixed height position with the hoop muscle. Assembling of the reinforcing bar can be completed easily by lowering the main bars to the hoops in order. In addition, the manufacturing cost can be greatly reduced as compared with a configuration in which the entire heavy reinforcing bar is rotated, and it is possible to easily cope with reinforcing bars having different sizes.

  In addition, a cylindrical roller for moving the main muscle in the hoop muscle arrangement direction is provided on the upper surface portion of the main muscle holding arm, and a feeding means for moving the main muscle is provided at one end side in the hoop muscle arrangement longitudinal direction. By being provided, the heavy main muscle can be easily fed into the hoop muscle. Furthermore, when the positioning contact plate for the reinforcing bar end face is suspended from the fed tip, it is possible to easily align the end face only by bringing the main bar end face into contact with each other, thereby improving work efficiency.

  Furthermore, if the hoop bar holding means is provided so that the position of the holding part can be adjusted according to the size of each hoop bar, it can be easily used with reinforcing bar rods with different diameters and sizes, and hoop bars such as circles and squares. It can correspond to.

Overall perspective view excluding delivery means implementing the present invention Cross-sectional view of the main muscle lifting and lowering means of the present invention Front view of a reinforcing bar assembly apparatus embodying the present invention The perspective view which shows the Example of a delivery means Explanatory drawing showing the assembly process of hoop and main bars

  Embodiments of the present invention will be described below with reference to the following drawings. FIG. 1 is an overall perspective view excluding the delivery means embodying the present invention, FIG. 2 is a cross-sectional view of the main bar raising / lowering means section, FIG. 3 is a front view of the reinforcing bar assembly apparatus, and FIG. 4 is an embodiment of the delivery means. FIG. 5 is an explanatory view showing the assembly process of the hoop and main bars.

  The rebar rod assembly apparatus shown in this example includes a hoop muscle holding means 2 for holding a hoop muscle 80 on the main base frame 1, a main muscle holding arm 3 for raising and lowering the main muscle 81, and a main muscle raising and lowering means 4 for raising and lowering the same. The delivery means 5 for delivering the main muscle 81 in one left-right direction is placed on one end side in the left-right direction, and the end surface of the main muscle 81 sent by the delivery means 5 is brought into contact with the other end side for positioning. A contact plate 6 is provided and configured.

  In the reinforcing bar rod 8, a plurality of main bars 81, which are linear reinforcing bars, are radially arranged on the inner periphery of a plurality of hoop bars 80 in which the reinforcing bars are previously formed in a ring shape, and each intersection is fastened with a steel wire or the like. And configured in a cylindrical shape.

  The hoop line holding means 2 is composed of a fixed holding part 20, an adjustment holding part 21 and a lower holding part 22, and each holds a ring-shaped hoop line 80 upright. The fixed holding unit 20 includes a plate holding frame 202 erected on the main base frame 1 and a holding plate 201 that holds and holds the hoop muscle 81 fixed to the upper end of the plate. The holding plate 201 has a plate shape. In the end face, a number of grooves for holding the concave hoop muscle 80 are provided and horizontally provided in the left-right direction (the direction of the arrow W in FIG. 1), and the portion of the main muscle holding arm, which will be described later, is moved up and down. ing.

  The adjustment holding unit 21 is located on the opposite side of the fixed holding unit 20 with the hoop muscle 80 interposed therebetween, and holds the hoop muscle 80 in the same manner as the fixed holding unit 20, and is provided so as to be able to advance and retreat toward the center side of the hoop muscle 80. And hoop muscles 80 of different sizes are provided. The adjustment holding unit 21 is provided on the work deck 7 which is guided by the guide rail 70 provided horizontally in the direction of arrow X in FIG. 1 on the main base frame 1 and is movable in the X direction, and is erected in the vertical direction. Plate holding frame 212 and a holding plate 211 that holds and holds the hoop muscle 81 fixed to the upper end of the plate holding frame 211. The holding plate 211 has a plate-like groove for holding the concave hoop muscle 80 on the end surface. A large number are provided horizontally in the direction of the arrow W in FIG. 1, and the portion of the main muscle holding arm that moves up and down is arranged in the same manner as the fixed holding portion 20. The adjustment holding unit 21 moves in the X direction by moving the work deck 7.

  The work deck 7 is horizontally provided on the main base frame 1 at a portion where an operator rides and works to bind the intersection of the hoop muscle 80 and the main muscle 81. For the movement of the work deck 7, an adjustment screw shaft 73 is provided horizontally in the X direction on the main base frame 1 side, and a moving boss 75 screwed to the adjustment screw shaft 73 is fixed to the work deck 7 side. By rotating the handle 74 that is fixedly attached, the moving boss 75 moves in the X direction, and the wheel 71 provided at the lower part of the work deck 7 rolls the guide rail 70. A stopper 72 is provided at the end of the work deck 7 so as to engage with the main base frame 1 side and lock and unlock the movement of the work deck 7.

  The lower holding portion 22 is for supporting the lower end portion of the hoop muscle 80, and is a screw lot 221 that is vertically held by a fixing nut 220 on the main base frame 1 and a lower portion that is fixedly held at the upper end portion thereof. The lower holding plate 222 has an upward plate shape, and a plurality of concave grooves for holding the hoop muscles 80 are provided on the upper end surface. The lower holding plate 222 is provided upright in the direction of the arrow W in FIG. 1 and is arranged with the main-bar holding arm moving up and down in the same manner as the fixed holding unit 20 and the adjustment holding unit 21. Yes.

  The screw lot 221 is provided with a screw in the axial direction, and the vertical height of the lower holding plate 222 can be adjusted by adjusting the vertical position of the fixing nut 220 screwed into the screw lot 221. Further, the main base frame 1 is provided with a plurality of attachment holes in the X direction, and even when the size of the hoop muscle 80 is changed, the position in the X direction can be adjusted by replacing the holes.

  The hoop muscle holding means 2 can hold the hoop muscles 80 having different sizes in the vertical direction by adjusting the positions of the adjustment holding portion 21 and the lower holding portion 22 with respect to the fixed holding portion 20 as described above. The hoop muscle 80 can be inserted into the concave groove of the holding plate, and can be erected in the W direction at a desired pitch. By changing the pitch of the concave grooves of the holding plates 201, 211, 222, it is possible to change the mounting pitch of the hoop bars 80, so the holding plates 201, 211, 222 are fixed to the plate holding frame with bolts or the like. It is provided to be exchangeable. Further, it is possible to hold a rectangular hoop line or the like.

Main muscle holding arms 3 are provided at a plurality of positions between the hoop muscles 80 and the hoop muscles 80.
The main muscle holding arm 3 provided on the upper surface with a mounting surface longer than the outer diameter of the hoop muscle 80 in the horizontal direction perpendicular to the longitudinal direction (W direction) where the hoop muscle 80 is arranged is positioned between the hoop muscles 80. It is arranged and moved up and down by a main bar lifting means 4 (described later) provided on one end side of the main bar holding arm 3. The other end is provided with a length located outside the outer diameter of the hoop muscle 80. The main muscle holding arm 3 is positioned between the hoop muscle 80 and the hoop muscle 80 held upright in the vertical direction and moves up and down. Therefore, the main muscle holding arm 3 has a narrow plate shape and a horizontal upper end surface. A plurality of positions are provided in the alignment direction (W direction). A part of the upper end surface is provided with a feed roller 30 having a rotation axis in a horizontal direction perpendicular to the alignment direction of the hoop bars 80 and rotating in the alignment direction of the hoop bars 80. The upper end of the outer diameter of the feed roller 30 is substantially straight with the upper end surface of the main bar holding arm 3, and the main roller 81 placed on the upper end surface is fed in the direction in which the hoop bar 80 is aligned. It is provided freely. In this example, a feed roller that has a built-in motor and is forced to rotate in the feed direction and an object that does not have a motor are alternately provided.

  On one end side of the main muscle holding arm 3, a main muscle raising / lowering means 4 is provided that holds the main muscle holding arm 3 and moves it up and down. The main muscle lifting / lowering means 4 includes an elevating mast 46 provided vertically on the main base frame 1, an arm holding base 44 that moves up and down while being guided by the elevating mast 46 and holds the main muscle holding arm 3, It is comprised with the motor 40 which is a motive power source for making it do. In this example, the main muscle lifting / lowering means 4 is provided in two locations in the alignment direction (W direction) of the hoop muscle 80 so as to hold the main muscle holding arm 3 and raise / lower it. The main bar elevating / lowering means 4 may be increased or decreased according to the length of the reinforcing bar rod 8. By increasing the number of locations supported by the main muscle 8, the vertical deflection of the main muscle 81 is reduced and the assembly accuracy is improved.

  The elevating mast 46 is suspended in a gate shape on the main base frame 1, and a motor 40 that is an elevating power source at the center of the portal shape, a driving mechanism that operates by the motor 40, and a drive for holding the same. A part holding frame 47 is provided. The arm holding base 44 is provided with a plurality of guide rollers 45 that rotate in contact with the lifting mast 46, and the arm holding base 44 is held by the lifting mast 46 via the guide rollers 45. When raising and lowering, the guide roller 45 rolls with the vertical surface of the raising and lowering mast 46 as a guide, and the arm holding base 44 is raised and lowered.

  An arm holding frame 48 extending horizontally in the alignment direction (W direction) of the hoop bars for holding a plurality of main bar holding arms 3 is fixed to the reinforcing bar 8 side of the holding base 44, and the reinforcing bar 8 side The main muscle holding arm 3 is fixed and held in the frame. The main bar holding arm 3 is fixed with bolts so that the attachment position of the reinforcing bar 8 can be changed.

  The drive unit holding frame 47 is erected on the main base frame 1, the motor 40 is provided in the upper part, the screw shaft 41 having a screw groove on the outer periphery extending vertically is installed in the center part, and the motor 40 is When rotating, the screw shaft 41 moves up and down via a screw boss (not shown) engaged with the motor 40 and the screw shaft 41. A sprocket 42 that is rotatably held by a horizontal rotating shaft 420 is provided at the upper end of the screw shaft 41, and one end of the sprocket 42 is fixed to the drive unit holding frame 47 and the other end is fixed to the arm holding base 44. The rolled roller chain 43 is wound, and when the screw shaft 41 moves up and down, the arm holding base 44 is pulled by the roller chain 43 and moves up and down. As the arm holding base 44 moves up and down, the main muscle holding arm 3 fixed to the arm holding base 44 moves up and down. A cover is provided on the outer periphery of the movable part of the main bar lifting means 4 for safety.

  On one end side of the main base frame 1 in the left-right direction, there is provided delivery means 5 for delivering the main muscle 81 in the alignment direction (W direction) of the hoop muscle 80, and the main muscle 81 is inserted inside the aligned hoop muscle 80. From one side to the other side, it is placed on the upper end of the main bar holding arm 3 and sent out. The delivery means 5 comprises a roller that sandwiches and rotates the main bar 81 from above and below, a motor that drives the roller, and a frame 55 that holds them.

  The roller for feeding is provided with a main roller 51 driven by a motor, a swing roller 54 sandwiching the main bar 81 at a position facing the main roller 51 and a support roller 52 supporting the main bar 81 behind the main roller 51. ing. The swing roller 54 is provided in parallel with the main roller 51 on a swing arm 53 that rotates by providing a swing fulcrum shaft 56 provided with a rotation shaft in the same direction as the rotation axis of the main roller 51 on a frame 55 that holds the main roller 51. It is rotatably held by a provided rotating shaft. A handle 530 is provided on the rotating end side of the swing arm 53, and is used by an operator to lift the swing arm 53 when the main muscle 81 is sandwiched. The main roller 51 is rotationally driven by a delivery motor 50 provided on the frame 55. When the main roller 51 rotates, the main roller 51 is fed in the direction in which the main roller 51 rotates due to the frictional force with which the main reinforcement 81 sandwiched between the main roller 51 and the swing roller 54 comes into contact.

  An abutting plate 6 having a vertically erected wall surface is provided at the end of the main base frame 1 opposite to the side on which the feeding means 5 in the alignment direction (W direction) of the hoop bars 80 is provided. The end surfaces of the main bars 81 sent out by the sending means 5 are brought into contact with each other so that the end surfaces are aligned. For this reason, it is separated from the main base frame 1 so that the position can be adjusted.

  Next, the process of assembling the reinforcing bar rod 8 using the reinforcing bar rod assembling apparatus of this example will be described. A plurality of hoop bars 80 in which the reinforcing bars are formed in a ring shape are placed in the recessed grooves of the holding plates 201, 211, and 222 of the hoop bar holding means 2 so as to be held upright and aligned. In this case, the positions of the adjustment holding portion 21 and the lower holding portion 22 of the hoop muscle holding means 2 are adjusted according to the size of the hoop muscle 80. Further, if necessary, it is exchanged with one in which the pitch or the like of the concave grooves of the holding plate matches the arrangement pitch of the hoop bars 80 of the reinforcing bar 8.

  The main muscle 81 is fed out in the alignment direction inside the hoop muscle 80 by the feeding means 5 from one end of the aligned hoop muscles 80. At this time, the main bar holding arm 3 is sent together with the feed roller 30 of the main bar holding arm 3 in accordance with the height of the main roller 51 of the sending unit 5 by the main bar lifting / lowering means 4. Since the abutment plate 6 is provided on the terminal end side that is fed out, the end surfaces are aligned by abutment.

  The fed main bar 81 is raised to the fastening position with the hoop bar 80 by the main bar lifting / lowering means 4 and the intersection is fastened with a steel wire or the like. As shown in FIG. 5, the fastening is performed from the uppermost portion, and as shown in FIGS. 5A, 5B, and 5C, the lower end is moved in order and finally the lowermost end is fastened to finish. By performing the fastening operation by adjusting the main bar holding arm 3 to the fastening position height, the positioning can be easily performed without using a jig or the like. An operator stands on the work deck 7 and performs work. If the work deck 7 is provided on both sides of the reinforcing bar 8, an operator can work from both sides.

  The present invention is used for assembling reinforcing bar rods such as cast-in-place concrete piles.

DESCRIPTION OF SYMBOLS 1 Main base frame 2 Hoop muscle holding means 20 Fixed holding part 201 Holding plate 202 Plate holding frame 21 Adjustment holding part 211 Holding plate 212 Plate holding frame 22 Lower holding part 220 Fixing nut 221 Screw lot 222 Lower holding plate 3 Main muscle holding arm 30 Feed Roller 4 Main bar lifting means 40 Motor 41 Screw shaft 42 Sprocket 43 Roller chain 44 Arm holding base 45 Guide roller 46 Lifting mast 47 Drive part holding frame 48 Arm holding frame 5 Feeding means 50 Feeding motor 51 Main roller 52 Support roller 53 Swing Arm 54 Swing roller 55 Frame 56 Swing fulcrum shaft 6 Abutment plate 7 Work deck 70 Guide rail 71 Wheel 72 Stopper 3 adjusting screw shaft 74 handle 8 reinforcing bar cage 80 hoop 81 main reinforcements

Claims (5)

An apparatus for assembling a reinforcing bar rod comprising a plurality of annular hoop muscles and a plurality of elongated main bars fixed perpendicularly to the hoop muscles on the inner peripheral surface of the hoop muscles,
The hoop muscle holding means for arranging and holding a plurality of hoop muscles at predetermined intervals in the horizontal direction and the hoop muscles arranged at a plurality of locations between the hoop muscles and the arranged hoop muscles, and orthogonal to the longitudinal direction of the hoop muscle arrangement. A reinforcing bar rod assembling apparatus comprising: a main bar holding arm having a mounting surface on the upper surface which is longer than the outer diameter of the hoop bar in the horizontal direction; and a main bar lifting means for moving the main bar holding arm vertically.   The upper surface of the main bar holding arm has a rotation axis in a direction orthogonal to the hoop bar arrangement direction, and is provided with a cylindrical roller for moving the main bar in the hoop bar arrangement direction. 2. The rebar rod assembling apparatus according to claim 1, wherein a feeding means for moving the main bar is provided on the end side. The reinforcing bar clerk assembling apparatus according to claim 1 or 2, wherein a positioning abutment plate for the bar bar end face is vertically provided on one end side in the hoop bar arrangement longitudinal direction.   4. The reinforcing bar clerk assembling apparatus according to claim 1, wherein the hoop bar holding means is provided so that the position of the holding part can be adjusted in accordance with the size of each hoop bar. A method for assembling a reinforcing bar rod comprising a plurality of annular hoop muscles and a plurality of long main bars fixed to the inner peripheral surface of the hoop muscles perpendicular to the hoop muscles,
A plurality of hoop muscles are arranged and held in advance in the horizontal direction at a predetermined interval, and are arranged at a plurality of locations between the hoop muscles and the hoop muscles arranged in the horizontal direction, and orthogonal to the longitudinal direction of the hoop muscle arrangement. A main muscle insertion step of placing the main muscle on the upper surface of the main muscle holding arm having a mounting surface longer than the outer diameter of the hoop muscle in the horizontal direction and moving the inner side of the hoop muscle in the longitudinal direction of the hoop muscle arrangement, and the inserted main muscle A method of assembling the reinforcing bar rod, including a main bar fixing step of moving the bar up and down by a main bar lifting means and fixing the main bar at a position where it is attached to the hoop bar.