JP2012148303A - Apparatus and method for arranging reinforcing bar - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus and a method for arranging reinforcing bars capable of continuously arranging the reinforcing bars which are successively conveyed to a predetermined location at the arrangement position of an automatic welding machine.SOLUTION: The apparatus includes two rotary shafts 14a, 14b arranged parallel to each other in the horizontal direction, and a plurality of oscillating plates 12a, 12b which are fixed to extend downwardly in the axial direction of each rotary shaft at the predetermined spacing, and turnable around the rotary shafts. When viewed in the axial direction of the rotary shafts, a reinforcing bar passage is formed between the oscillating plate 12a fixed to one of the rotary shafts and the oscillating plate 12b fixed to the other of the rotary shaft. Reinforcing bars can be fed to different positions 23a-23h in the width direction by turning the oscillating plates fixed to both rotary shafts while the passage is maintained.

Description

  The present invention relates to an apparatus for arranging reinforcing bars and an arrangement method thereof, and more particularly to an apparatus and a method for arranging longitudinal bars used for ALC panels (lightweight cellular concrete panels).

  Conventionally, in building materials such as ALC panels and reinforced concrete panels, reinforcing steel mats are used as reinforcing materials. In the case of an ALC panel, two rebar mats composed of a plurality of longitudinal bars arranged in the longitudinal direction and a plurality of transverse bars welded and fixed perpendicularly to the longitudinal bars in parallel according to the required strength of the panel. It is buried in combination.

  When manufacturing such a reinforcing steel mat, it supplies to welding machines, such as an automatic spot welder, from each vertical supply apparatus of a vertical bar and a horizontal bar, and welds the crossing point. Usually, with multiple vertical streaks held in parallel from the vertical streak feeder, feed them sequentially in the longitudinal direction, stop moving at the welding position with the transverse streaks, and then feed the horizontal streaks from the lateral streak automatic feed device One by one is supplied to the welding machine, welding points are welded, and then the horizontal bars are sequentially welded in the longitudinal direction while the horizontal bars are welded to the required points. In this case, the horizontal stripes are supplied one by one, but the vertical stripes need to be arranged in advance at a predetermined interval.

  FIG. 3 is an enlarged rear view of an example of a conventional vertical streak supply device. In this apparatus, slits for supporting a plurality of vertical stripes in the width direction are formed at a plurality of locations on a machine base (32), and a plurality of rows of slit forming plates (33) are arranged at intervals. On the back side of each slit forming plate (33), a movable table (35) that moves back and forth in a direction perpendicular to the longitudinal bars (30) by a fluid pressure cylinder or the like, and a stopper ( 36) is provided adjacent to the stopper device. In addition, a magnet roller device for feeding the vertical stripe (30) is disposed in the vicinity of each slit forming plate (33). In the case of the vertical streak supply device (31) having such a configuration, the movable base (35) of the stopper device is advanced in advance, and the stopper (36) is attached to each slit forming plate (33) as shown in FIG. A plurality of vertical stripes (30) having a predetermined length are dropped into each slit (34) in a state where the slits (34) are arranged at positions crossing each slit (34). The vertical stripes (30) dropped into the slit (34) are aligned in the state of being overlapped in the vertical direction as shown in the figure, and then the stopper (36) is retracted to drop an appropriate number to the lower part of the slit. The longitudinal bars (30) dropped into the lower part of the slit are fed one by one to the welding machine by the magnet roller device.

  In Patent Document 1, as an improvement of such a device, when stoppers are provided at a plurality of positions in the vertical direction of each slit and the length and diameter are different for each production lot, a plurality of vertical lengths for each lot are assigned to each division. An alignment device that supplies streaks and moves back and forth in the horizontal direction in the lowermost section. Even when the size of the slits does not match the diameter of the vertical streaks, the vertical streaks are aligned in one row in each slit. An apparatus is disclosed that enables the supply of the vertical stripes accurately.

  These devices make it possible to automatically manufacture rebar mats, but since rebars of various lengths and diameters are sequentially supplied to this device, they have been transported where this device is located. It is necessary to store the reinforcing bars separately for each length and diameter, and to drop the vertical bars having the length and diameter required at the time of use into the slit of the vertical bar feeder, which is a factor that hinders work efficiency. .

Japanese Patent No. 4450923

  An object of the present invention is to provide means capable of arranging the reinforcing bars sequentially conveyed to a predetermined place after cutting as they are at the arrangement position of the automatic welding machine.

  The reinforcing bar arraying device of the present invention is fixed so as to extend downward at a predetermined interval in the axial direction of the two rotating shafts arranged in parallel in the horizontal direction, and can turn around the rotating shaft A plurality of oscillating plates, and when viewed from the axial direction of the rotating shaft, between the oscillating plate fixed to one of the rotating shafts and the oscillating plate fixed to the other of the rotating shafts In this case, a rebar passage is formed, and the rocking plate fixed to both the rotation shafts is swung while maintaining the formation of the passage, thereby passing through the passage to different positions in the width direction. Reinforcing bars can be supplied.

  The rocking plate fixed to the one rotating shaft and the rocking plate fixed to the other rotating shaft are arranged in the vicinity of each other in the axial direction of the rotating shaft, forming a set of two pieces, It is preferable to adopt a configuration in which at least two sets of the swing plates are arranged in the axial direction of the rotating shaft.

  In addition, it further includes an array guide mounted on the lower side of the swing plate and having a plurality of slits in the width direction, and the path of the reinforcing bar formed between the swing plates is provided in each slit of the array guide. It is preferable that the rocking plate can be stopped at a position corresponding to.

  Further, means for stopping the rebars that are sequentially conveyed in parallel to the axial direction of the rotating shaft and supplying the rebar disposed at the stop position to the rebar passage between the swing plates from above. It is preferable to further comprise.

  The supply means includes: a means for supporting the conveyed reinforcing bars; a stopper for stopping the reinforcing bars; a conveyor plate for extruding the stopped reinforcing bars in a lateral direction; and a reinforcing bar extruded from the conveyor. And a chute that opens and guides the rebar to the rebar passage in a state where the swing of the swinging plate is stopped can be used.

  It is preferable that the reinforcing bars are sequentially arranged in multiple rows by selectively guiding the reinforcing bars to the slits of the arrangement guide.

Moreover, the reinforcing bar arrangement method of the present invention relates to a method for arranging reinforcing bars that are sequentially conveyed after cutting,
Stopping the rebar that has been conveyed by the conveyor at a stop position;
Guiding the reinforcing bar in the stop position to the holding position of the chute by pushing the reinforcing bar laterally;
Two rotating shafts arranged in parallel in the horizontal direction, and a plurality of swing plates fixed so as to extend downward at a predetermined interval in the axial direction of the rotating shaft and pivotable about the rotating shaft. A rebar passage is formed between the swing plate fixed to one of the rotary shafts and the swing plate fixed to the other of the rotary shafts when viewed from the axial direction of the rotary shaft. In the reinforcing bar arranging apparatus, the reinforcing bars are supplied to the passage from the holding position by the chute and are placed on the lower side of the swing plate, and the slits of the arrangement guide having a plurality of slits in the width direction are provided. One is a step of guiding the reinforcing bar;
Turning the rocking plate about the rotation axis, and moving the rebar passage to a position corresponding to the next slit of the arrangement guide;
Is provided.

  In order to achieve this method, it is preferable to use the above-described reinforcing bar arranging device of the present invention.

  According to the present invention, the reinforcing bars conveyed after cutting can be arranged as they are at the arrangement position. For this reason, it is not necessary to temporarily store the reinforcing bars, the work efficiency is improved, and the production tact can be shortened. Also. By arranging the rebar cutting machine upstream and the automatic welding machine downstream, it is possible to continuously perform the processes from cutting to welding. The present invention is also characterized in that such means can be provided by a simple and low-cost apparatus.

FIG. 1 is a perspective view of a reinforcing bar arranging apparatus showing an embodiment of the present invention. FIG. 2 is a schematic plan view of a part of the reinforcing bar arranging device of FIG. FIG. 3 is a schematic rear view showing a part of a conventional reinforcing bar supply device.

  Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings. However, the present invention is not limited to the embodiments. Moreover, in the following description, although it demonstrates on the assumption that it applies to the arrangement | sequence of the reinforcing bar of the size of the range of 1-8m in length and the outer diameter of 4-8mm used for an ALC panel, other things, such as a reinforced concrete panel, etc. It is possible to apply this invention also to the use which uses the reinforcing bar of the size.

  The reinforcing bar arranging device (1) of the present invention extends downwardly at predetermined intervals in the axial direction of two rotating shafts (14a, 14b) arranged in parallel in the horizontal direction and the rotating shafts (14a, 14b). And a plurality of oscillating plates (12a, 12b) that can turn around the rotation shafts (14a, 14b), and are viewed from the axial direction of the rotation shafts (14a, 14b) (see FIG. 2) between the swing plate (12a) fixed to one of the rotating shafts (14a) and the swing plate (12b) fixed to the other (14b) of the rotating shafts. A passage (13) is formed, and the swinging plates (12a, 12b) fixed to both the rotating shafts (14a, 14b) are swung while maintaining the formation of the passage (13). , Through the passage (13), the width direction is different It is capable of supplying the rebar (20) to the location.

  In addition, the reinforcing bar arranging device (1) of the present invention is arranged on the lower side of the swing plates (12a, 12b), and has an arrangement guide (18) provided with a plurality of slits (19a-19h) in the width direction, and The rebars (20) that are sequentially conveyed are stopped in parallel with the axial direction of the rotation shafts (14a, 14b), and the rebars (20) disposed at the stop positions are moved between the rocking plates (12a, 12b). Means can be provided for feeding the passage (13) from above.

  First, the reinforcing bar supply means is basically composed of a conveyor (2) and a chute (8). Of these, the conveyor (2) receives the rebar (20) conveyed and stops it at a predetermined position. The conveyor frame (3), a plurality of feed rollers (4), and a conveyor stopper (5) ). Each feed roller (4) is rotatably supported by the conveyor frame (3), and can convey the reinforcing bar (20) in the axial direction of the reinforcing bar (20). Moreover, the stopper (5) is provided in the terminal end of the conveyor (2), and the conveyed reinforcing bar (20) collides with this stopper (5) and stops.

  The stopper (5) absorbs an impact at the time of collision with the reinforcing bar (20), and is required to have a function of stably stopping the reinforcing bar (20) at the stop position (21). It is preferable to use it. The feed roller (4) has a width of 15 to 30 mm and a diameter of about 50 to 150 mm, and is arranged at an interval of about 40 cm in the longitudinal direction of the conveyor frame (3). As an alternative to the feed roller, a conveying means composed of a plurality of needles, a trajectory in which the reinforcing bar (20) can move, and the like can be applied.

  In addition, you may make it further provide a well-known means for making a conveyor (2) perform stably from a collision of the reinforcing bar (20) to a stopper (5) to a stop.

  A plurality of extrusion cylinders (6) are arranged in parallel on the upper side of one side wall of the conveyor frame (3), and an extrusion plate (7) can be moved back and forth at the piston end of each extrusion cylinder (6). Is installed. All the phases of the extrusion plate (7) are configured to be the same phase. Each extruding plate (7) is retracted when the reinforcing bar (20) is conveyed by the conveyor (2), and the reinforcing bar (20) moves forward after stopping at the stop position (21) to advance the reinforcing bar (20). It is comprised so that it can extrude in the direction orthogonal to a direction.

  A plurality of chutes (8) are arranged in parallel at the upper end of the other side wall of the conveyor frame (3) facing each extrusion cylinder (6). Each chute (8) is made of a steel material including an upper surface portion that receives a reinforcing bar (20), and a swash plate portion that extends obliquely downward from the upper surface portion and terminates above between the rotating shafts (14a, 14b). It is a member and is formed to have a length of 200 to 250 mm and an inclination angle of 50 to 60 °, and each chute (8) includes a guide (9).

  The height of the other side wall is lower than the height of the one side wall, and the upper surface of the chute (8) is lower than the height of the feed roller (4).

  Each guide (9) is arrange | positioned on the upper side of each chute | shoot (8) at fixed intervals. The space | interval of each chute | shoot (8) and each guide (9) is a space | interval of the grade which can guide and pass the reinforcing bar (20) extruded ahead from the extrusion plate (7), and is about 18-22 mm. is there.

  Some of the guides (9) are provided with stopper cylinders (10) at the lower ends, and holding stoppers (11) are provided at the piston ends of the stopper cylinders (10), respectively. It is attached to the surface of the swash plate so that it can move back and forth. The holding stoppers (11) are all configured to have the same phase. When the holding stopper (11) is moving forward, the rebar (20) sliding down on the swash plate of the chute (8) is held at the holding position (22). When the holding stopper (11) is retracted, the reinforcing bar (20) is guided from the holding position (22) to the passage (13) of the swing plates (12a, 12b).

  The number and installation interval of the extrusion cylinders (6), chutes (8) and guides (9) need to be configured so that the reinforcing bars are not bent or twisted according to the length or mass of the reinforcing bars to be welded. .

  The rotating shafts (14a, 14b) are made of steel bars having a length of 2 to 8 m and a diameter of about 30 to 50 mm. The rotating shafts (14a, 14b) are arranged in parallel with an interval of about 250 to 350 mm. Each rotating shaft (14a, 14b) is connected to a servo motor (16) via a respective speed reducer (15a, 15b). The reduction gears (15a, 15b) and the servo motor (16) are connected by couplings (17a, 17b). In the example shown in the figure, two rotating shafts (14a, 14b) are connected to one servo motor (16) and their rotations are linked to each other, but they are connected to two independent servo motors (16). It may be configured to operate independently.

  The rocking plates (12a, 12b) are made of a steel member having a wedge shape when viewed from the axial direction of the rotating shafts (14a, 14b) (see FIG. 2). The base part has a disk shape with an opening extending in part from the center, and is externally fitted to the rotating shaft (14a, 14b) from below, and in that state, a known method such as screwing using a bolt and a nut is used. By means, it can be fixed to each rotating shaft. The plate portion extends downward from the base portion, and the plate portion is arranged in parallel to each other or when the distance from the base portion side toward the distal end side becomes narrower when the plate portion is fixed to the rotating shaft (14a, 14b). And an outer surface extending obliquely from the opposite side of the base to the inner surface side. Each rocking plate is made of steel, the base is 60 to 90 mm in diameter, the length of the inner surface is 400 to 550 mm, the width of the base of the plate is 10 to 30 mm, and the width of the tip is 5 to 5 mm. The thickness is 15 mm and the thickness is 10 to 30 mm.

  When the rocking plates (12a, 12b) are fixed to the rotating shafts (14a, 14b), when the inner surface of the plate portion extends in the vertical direction, the distance between the rocking plates (12a, 12b), that is, The size of the rebar passage (13) is about 40 to 60 mm at the tip when the inner surfaces of both swing plates (12a, 12b) extend in the vertical direction (the passage extends in the vertical direction). When the swing plate is swung to an angle of 30 ° (maximum swivel position; the state shown by the solid line in FIG. 2), the size of the passage (13) is about 15 to 25 mm at the tip.

  In the apparatus configured as described above, the swing plates (12a, 12b) are rotatable about the rotation shafts (14a, 14b), and an array guide (18) to be described later is controlled by controlling the servo motor (16). ) At positions corresponding to the slits (19a to 19h).

  It is necessary to provide at least two swing plates (12a, 12b) at intervals of 400 to 600 mm in the axial direction with respect to the respective rotation shafts (14a, 14b). However, from the viewpoint of preventing bending and twisting of the reinforcing bar (20), it is preferable to provide three or more appropriately according to the length and mass of the reinforcing bar (20).

  Further, the mounting positions of the swing plates (12a, 12b) on the respective rotary shafts (14a, 14b) do not have to coincide with each other, and are viewed from the axial direction of the rotary shaft (see FIG. 2). In addition, it is only necessary that the passage (13) of the reinforcing bar (20) be formed between the inner side surfaces of the two swing plates (12a, 12b). However, from the viewpoint of preventing bending and twisting of the reinforcing bar (20), it is possible to attach them at the same position with respect to the axial direction of the rotary shaft so that the inner surfaces of the swing plates (12a, 12b) face each other. Is preferred.

  In addition, it is necessary to fix each rocking | swiveling plate so that it may become equal about the phase between the some rocking | swiveling plate (12a, 12b) fixed to each rotating shaft (14a, 14b).

  The arrangement guide (18) is a rectangular plate-like member having a width of 500 to 600 mm, a height of 250 to 400 mm, and a thickness of 10 to 20 mm, and each of which is provided with a plurality of slits (19a to 19h). The arrangement positions (23a to 23h) of the reinforcing bars (20) are determined by (19a to 19h). The width of the slit in the narrowest part is about 8 to 12 mm. The upper end of the arrangement guide (18) is preferably provided with an inclined surface so that the reinforcing bar (20) can be guided to the slits (19a to 19h).

  In addition, when the reinforcing bars fall in the slits (19a to 19h) and collide with the bottom surface thereof, rubber or the like is provided on the bottom surfaces of the slits (19a to 19h) in order to prevent the reinforcing bars from being bent or twisted. It is preferable to use the buffer material.

  1 and 2 show an arrangement guide (18) comprising eight slits (19a to 19h). The number of slits and the interval between the slits depend on the welded wire mesh to be produced. Can be adopted.

  Similar to the swing plates (12a, 12b), the arrangement guide (18) is a shaft of the rotating shaft according to the length and mass of the reinforcing bar (20) from the viewpoint of preventing the reinforcing bar (20) from bending and twisting. It is preferable to provide a plurality at intervals of 500 to 1000 mm in the direction.

  The positional relationship between the chute (8), the swinging plates (12a, 12b), and the arrangement guide (18) is such that when the holding stopper (11) is retracted, the rebar is held at the holding position (22). From the oscillating plate (12a, 12b) and the slit (19a-19h) continuously to reach the array position (23a-23h).

  The positional relationship between the swing plates (12a, 12b) and the arrangement guide (18) is such that the swing plates (12a, 12b) and the alignment guide (18) do not interfere with each other. Yes. That is, the arrangement guide (18) and the swing plate (12a, 12b) are arranged at an arbitrary interval in the axial direction of the rotation shaft (13a, 13b), usually at a predetermined interval within a range of 50 to 500 mm. Yes.

  Next, the reinforcing bar arranging method of the present invention will be described. The reinforcing bar (20) is cut to a predetermined length, conveyed by the conveyor frame (3) and the feed roller (4), and stopped at a predetermined stop position (21) after colliding with the conveyor stopper (5). At this time, the extrusion plate (7) attached to the extrusion cylinder (6) is retracted. After the stop, the extrusion plate (7) moves forward and pushes the reinforcing bar (20) in a direction perpendicular to its traveling direction.

  The extruded reinforcing bar (20) is guided by the guide (9) and slides down on the chute (8). At this time, the holding stopper (11) of the stopper cylinder (10) moves forward, and the reinforcing bar (20) stops after colliding with the holding stopper (11) and is held at the holding position (22).

  Thereafter, after the swinging plates (12a, 12b) are turned to one of the positions corresponding to the arrangement positions (23a to 23h), the holding stopper (11) is retracted, and the reinforcing bar (20) is moved from the holding position (22). After sliding down to the path (13) which is a gap between the rocking plates (12a, 12b) and passing through the path (13), the path passes through one of the slits (19a to 19h) of the arrangement guide (18). , One of the array positions (23a-23h) is reached.

  The rocking plates (12a, 12b) rotate to a position corresponding to the next arrangement position after confirming that the reinforcing bars are arranged in one of the arrangement positions (23a to 23h) by a sensor (not shown). Such sensors are preferably provided at all positions deemed necessary in order to prevent malfunction of the swinging plates (12a, 12b) and the pushing cylinder (6).

  After the above operation is repeated and the necessary number of reinforcing bars (20) are sequentially arranged at the arrangement positions (23a to 23h), the arranged reinforcing bars (20) are automatically welded by a known means such as a magnet roller device. It is conveyed to.

  In addition, it is also possible to arrange | position and supply this invention to the vertical stripe supply apparatus described in patent document 1. FIG.

  By using the reinforcing bar arranging apparatus and the arranging method of the present invention, in the manufacture of the welding mat, it is possible to carry out from the cutting of the reinforcing bars to the welding in a continuous process, and the space for storing the reinforcing bars after cutting becomes unnecessary. , Work efficiency can be improved. As described above, the present invention greatly contributes to the field of manufacturing building materials using rebar mats such as ALC panels and reinforced concrete panels.

DESCRIPTION OF SYMBOLS 1 Rebar arrangement apparatus 2 Conveyor 3 Conveyor frame 4 Feed roller 5 Conveyor stopper 6 Extrusion cylinder 7 Extrusion plate 8 Chute 9 Guide 10 Stopper cylinder 11 Holding stopper 12a, 12b Swing plate 13 Passage 14a, 14b Rotating shaft 15a, 15b Reduction gear 16 Servo motor 17a, 17b Coupling 18 Arrangement guide 19a-19h Slit 20 Reinforcing bar 21 Stop position 22 Holding position 23a-23h Arrangement position 30 Longitudinal stirrer 31 Vertical streak supply device 32 Machine base 33 Slit forming plate 34 Slit 35 Movable base 36 Stopper

Claims (7)

  Two rotating shafts arranged in parallel in the horizontal direction, and a plurality of swing plates fixed so as to extend downward at a predetermined interval in the axial direction of the rotating shaft and pivotable about the rotating shaft. A rebar passage is formed between the swing plate fixed to one of the rotary shafts and the swing plate fixed to the other of the rotary shafts when viewed from the axial direction of the rotary shaft. Reinforcing bars that are capable of supplying reinforcing bars to different positions in the width direction through the passages by turning the swinging plates fixed to both the rotating shafts while maintaining the formation of the passages. Array device.   The rocking plate fixed to the one rotating shaft and the rocking plate fixed to the other rotating shaft are arranged in the vicinity of each other in the axial direction of the rotating shaft, forming a set of two pieces, The reinforcing bar arrangement device according to claim 1, wherein at least two sets of the swing plates are arranged in the axial direction of the rotation shaft.   An arrangement guide mounted on the lower side of the swing plate and provided with a plurality of slits in the width direction, and a position of a path of the reinforcing bar formed between the swing plates corresponding to each slit of the array guide The reinforcing bar arranging device according to claim 1, wherein the swing plate can be stopped.   The apparatus further comprises means for stopping the rebars that are sequentially conveyed in parallel to the axial direction of the rotating shaft and supplying the rebar disposed at the stop position to the rebar passage between the swing plates from above. Item 2. The reinforcing bar arraying device according to item 1.   The supply means includes means for supporting the conveyed reinforcing bars, a stopper for stopping the reinforcing bars, an extrusion plate for extruding the stopped reinforcing bars in a lateral direction, and a reinforcing bar extruded from the conveyor. The reinforcing bar arranging device according to claim 4, comprising a chute that is held and opens and guides the reinforcing bar to the reinforcing bar passage in a state in which the swing of the swinging plate is stopped.   The reinforcing bar arranging device according to claim 3, wherein the reinforcing bars are sequentially arranged in multiple rows by selectively guiding the reinforcing bars to the slits of the arrangement guide. A method for arranging rebars that are sequentially transported after cutting,
Stopping the rebar that has been conveyed by the conveyor at a stop position;
Guiding the reinforcing bar in the stop position to the holding position of the chute by pushing the reinforcing bar laterally;
Two rotating shafts arranged in parallel in the horizontal direction, and a plurality of swing plates fixed so as to extend downward at a predetermined interval in the axial direction of the rotating shaft and pivotable about the rotating shaft. A rebar passage is formed between the swing plate fixed to one of the rotary shafts and the swing plate fixed to the other of the rotary shafts when viewed from the axial direction of the rotary shaft. In the reinforcing bar arranging apparatus, the reinforcing bars are supplied to the passage from the holding position by the chute and are placed on the lower side of the swing plate, and the slits of the arrangement guide having a plurality of slits in the width direction are provided. One is a step of guiding the reinforcing bar;
Turning the rocking plate about the rotation axis, and moving the rebar passage to a position corresponding to the next slit of the arrangement guide;
A method for arranging reinforcing bars.

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