JP2005188064A - Automatic binding equipment for reinforcement grating - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide automatic binding equipment for a reinforcement grating capable of limiting a knot in each cross section to one place like handwork and furthermore taking measures to deal with the knot. <P>SOLUTION: The automatic binding equipment for a reinforcement grating is equipped with a drawing device 1 capable of pulling a wire 8 out of a winding coil and mounting a wire point f retreated by a predetermined length from the front end thereof on a cross section 93 of a bar arrangement grating, a cutting device 2 placing a position of a cutting edge so as to locate the wire point f in an intermediate point of the front end of the wire, a bending device 3 interlocking the wire point on the cross section held by a holding section 35 and bending a line segment wire in a U-shape by making a frame body 3a descend, a binding device 4 placed downward of the cross section 93 in opposition to the bending device, holding the lower end of the U-shaped wire by making a pair of clamps 44 opposed to each other provided to the upper end of an axial body 43 advance and binding the U-shaped wire to the twisted cross section 93 by rotating the axial body 4 and a conveyor 5 conveying the cross section of the bar arrangement grating in due order directly under a holding tool 3b. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a rebar lattice automatic bundling facility in which each crossing portion of a bar arrangement lattice in which vertical bars and horizontal bars are arranged in a lattice pattern is bound by a steel wire to form a rebar lattice.

For reinforcement of concrete, there is a reinforcing bar lattice in which each crossing portion of a reinforcing lattice in which vertical bars and horizontal bars made of steel bars for reinforced concrete are arranged in a lattice shape is bound by a steel wire to form a mat shape.
Conventionally, bundling at each intersection of such bar arrangement grids has conventionally been performed manually, but in order to automate this, several reinforcing bar bundling devices have also been proposed (for example, Patent Documents 1 and 2). reference).

JP 2002-121895 (page 2-5) Japanese Examined Patent Publication No. 7-56123 (page 2-3)

Patent Document 1 introduces an apparatus for automatically binding reinforcing bars by attaching a binding wire of a cartridge to a binding machine.
Patent Document 2 states that “a pair of upper and lower frames 12 and 13 provided in the front and rear of the traveling carriage 2 in the width direction, and upper and lower working frames 14 and 15 that are movably supported by the frames 12 and 13. A feed reel 17 that feeds the two binding wires 16, 16; a guide ring 18 that guides the binding wires; upper and lower twisting devices 21, 21 driven by a motor 19 via a chain 20; and the twisting device An automatic binding machine having upper and lower caulking brackets 22 and 22 "engaged with 21 and 21 is introduced.

However, the technique of Patent Document 1 has a problem in that the cartridge cost is high and the cartridge must be frequently replaced because the binding wire of the cartridge is attached to the binding machine.
In the technique of Patent Document 2, the knots twisted and bound with the binding wire can be formed at two places at each intersection, so that the possibility that the binding wire is broken at the knot is doubled. When lifting a rebar lattice as a suspended load, the binding wire may break, but most of it breaks at the knot, so there is a high probability that the binding wire will break as there are two knots at each intersection. . In addition, the knots protruded up and down as if the buds of plants grew from the mat-shaped rebar lattice, and the appearance was poor. In addition, there was a work load that had to be crushed by the customer specifications, and that effort was doubled.
In addition, handy type reinforcing bar binding machines (for example, reinforcing bar binding machine manufactured by Max Co., Ltd .: model RB-390A), etc., are available on the market. Such binding machines also have a high cost of iron consumables using cartridges. I had a problem. Furthermore, the knot has become large, and post-processing is required to crush the knot after bundling.

  The present invention solves the above-mentioned problems, uses a wire in a wound state, keeps the knot at each crossing in one place as in manual work, and can further easily take measures against the knot. The purpose is to provide an automatic binding system for reinforcing bars.

In order to achieve the above object, the gist of the invention described in claim 1 is that a sandwiching tool capable of sandwiching a rear part near the winding coil from the tip of the iron wire drawn out from the winding coil, and the sandwiching tool A moving means is provided to move the pinching tool that pinches the rear part to pull out the iron wire from the winding coil, and the vertical and horizontal bars are located at the iron wire point that is retracted by a predetermined length from the tip of the iron wire. Cutting device (1) that can be placed on the intersection of the bar arrangement grids arranged in a grid, and the position of the cutting blade so that the iron wire point is the middle point of the iron wire tip A cutting device (2) that can cut the iron wire at the blade point, and a frame that can be moved up and down and the engaging portions of both lower end portions abut on the line iron wire cut by the cutting device across the intersecting portion from above Body and a presser having a presser part that can move forward and backward, and the front part is moved forward by the advancement of the presser part. A bending device (3) for pressing and locking the iron wire point on the crossing portion with a pressing portion, and further bending the line iron wire in an inverted U shape by lowering the frame body; Opposing to the bending device, it is arranged below the intersecting portion so that the shaft body can be rotated, and a pair of opposing clamp portions provided at the upper end portion of the shaft body can be moved forward and backward. The lower end portion of the U-shaped iron wire bent into the U-shape is clamped by the advancement of both clamp portions, and the U-shaped iron wire is twisted by rotating the shaft body to bind the intersecting portion. A bundling device (4) capable of transferring a bar arrangement grid in which the vertical bars and horizontal bars are arranged in a grid pattern, and sequentially pressing the crossing portions of the bar arrangement grids. It is in an automatic binding facility for reinforcing bar lattices, characterized by comprising a transfer device (5) that can be transferred directly under the tool.
Here, the “iron wire” means a wire for bundling including a stainless steel wire, a plated wire and the like in addition to an annealed iron wire (so-called chrome wire).
According to a second aspect of the present invention, there is provided an automatic binding facility for reinforcing bar lattices according to the first aspect of the present invention. (6).
According to a third aspect of the present invention, there is provided an automatic binding facility for reinforcing bar lattices according to the first or second aspect, wherein the clamp portion according to the binding device can be moved up and down and the upper surface of the clamp portion is formed as a flat surface. It is characterized in that the knot can be crushed by moving the clamp part upward with respect to the knot that has been twisted and bound to the iron wire.

(Action)
As in the first aspect of the invention, the bending device (3) is configured to hold the iron wire spot on the intersecting portion by pressing the holding portion, and to bend the segment iron wire into an inverted U shape by lowering the frame body. In addition, the lower end of the U-shaped iron wire bent into a U-shape is sandwiched by the advancement of both clamp parts, and the U-shaped iron wire is twisted and crossed by rotating the shaft body If a bundling device (4) capable of bundling the parts is provided, bundling similar to manual work can be performed at the intersection of the bar arrangement lattice. If the drawing device (1) and the cutting device (2) are further provided, the pretreatment necessary for binding can be mechanized. Further, when the transfer device (5) is provided, the reinforcing bar lattice can be completed by sequentially transferring the crossing portion directly below the presser. Each mechanical operation is easy to automate and contributes to quality improvement and productivity improvement. Since the iron wire drawn from the winding coil is used for the drawing device, the iron wire length is extremely longer than that of the cartridge, so that it can withstand long-time bundling processing. The iron wire cost per unit length is also reduced. Since there is only one binding portion (knot) at each intersection, the risk of breaking at the binding portion is halved compared to that of Patent Document 2.
If the clamp part which concerns on a binding apparatus can be moved up and down like Claim 3, and the upper surface of this clamp part is formed in a flat surface, a clamp part can be moved up and the knot can be crushed, The customer specifications that must be crushed can be easily met by using the lamp part without being tied.

  The rebar lattice automatic binding facility of the present invention can use a steel wire in a wound state with a high iron dose, and performs a mechanical operation similar to a manual binding process to place one knot at each intersection. However, it can contribute to stable quality and improved productivity, and can also be used to easily handle countermeasures that break knots.

  Hereinafter, an automatic binding facility for reinforcing bar lattices (hereinafter simply referred to as “automatic binding facility”) will be described in detail. 1 to 9 show an embodiment of the automatic binding facility according to the present invention. FIG. 1 is a schematic front view of the facility, FIG. 2 is a plan view of FIG. 1, and FIG. FIG. 4 is a plan view of the presser, (b) is a side view thereof, FIG. 5 is a plan view of the cutting device, and (b) is a plan view of the cutting device. FIG. 6 is a side view of the frame, in which the frame body is abutted from above with the line iron wire cut by the cutting device across the intersection, and when the frame body descends, the line iron wire is bent in an inverted U shape. FIG. 7 is a schematic front view of the bending apparatus, and FIG. 7 shows a height position where the shaft body of the bundling apparatus moves upward from the state of FIG. 6 and a pair of clamp parts face each other with the lower part of the U-shaped iron wire in between. 8 is a schematic front view around the bending device and the bundling device arranged in FIG. 8. FIG. 8 shows that both clamp portions are advanced from the state of FIG. 7 to sandwich the lower end portion of the U-shaped iron wire, and the shaft body further rotates. A schematic front view around the bending device and the binding device, showing a state of twisting the U-shaped iron wire and binding the crossing portion, FIG. 9 is after the binding is finished in FIG. The schematic front view around the binding device showing the state in which both clamp portions are advanced again and merged and the shaft of the binding device moves up in that state is shown. In order to make the drawing easier to understand, a part of hatching for cross-sectional display is omitted.

(1) Embodiment 1
This automatic binding facility A includes a drawing device 1, a cutting device 2, a bending device 3, a binding device 4, and a transfer device 5 (FIGS. 1 and 3).
The transfer device 5 places a bar arrangement grid 9a in which vertical bars 91 and horizontal bars 92 are arranged in a lattice shape on a frame base (not shown), and sequentially connects the intersections 93 of the bar arrangement grid 9a of the binding device 4. A known device is used that includes a transfer means 5a such as a carriage that is disposed at an upper position and directly below the presser 3b.

The drawing device 1 is wound by moving a clamping tool 11 that clamps a rear portion g slightly near the winding coil from the iron wire tip 82 of the wound iron wire coil (hereinafter referred to as “winding coil”). This is a pre-processing device for the automatic binding facility A that can pull out the iron wire 8 from the coil 81 and place the iron wire point f retracted by a predetermined length from the tip 821 of the iron wire on the intersection 93 of the reinforcing grid 9a.
The drawing device 1 includes a correction tool 1a, a clamping tool 11, and a moving means 1c for the clamping tool 11. The correction tool 1a includes a horizontal correction roller 1a ₁ and a vertical correction roller 1a ₂ . A winding coil (not shown) is installed on the right side of FIG. 1, and is attached to the horizontal correction roller 1 a ₁ attached to the plate piece P ₁ extending horizontally from the standing wall F and further to the plate piece P ₂ . By passing the vertical straightening roller 1a ₂ , the wound iron wire 8 becomes a coil iron wire 81 straightened. While the front end portion 82 of the iron wire straightened is clamped by the clamping tool 11, the moving means 1c is operated to advance leftward in FIG. 1 where the cutting device 2 and the bending device 3 are present. Can be made.
The sandwiching tool 11 composed of a square receiving plate 11a and a companion plate 11b is disposed in the middle of the forward end 82 of the iron wire 8 straightened by the straightening tool 1a going to the left in FIG. . A receiving plate 11a that is fixed to the upright movable plate 10 and projects horizontally, and a companion plate 11b that is opposed to the receiving plate 11a are provided. The companion plate 11b is fixed to the tip of the rod 13a of the air cylinder 13. The extension of the rod 13a allows the coil iron wire 81 to be held between the receiving plate 11a and the companion plate 11b (FIG. 1). The main body of the air cylinder 13 is also fixed to the upright movable plate 10 similarly to the receiving platen 11a. The upper surface position of the receiving board 11a is on the extension line of the coil iron wire 81 which has been straightened. A female screw portion 14 a of a ball screw is fixed to the upright movable plate 10. A male screw portion 14 of the ball screw that meshes with the female screw portion 14a is supported by a bearing so as to be parallel to the coil iron wire 81 fed to the bending device 3 by the drawing device 1, and further, the male screw portion 14 A drive shaft 15a of the servo motor 15 is connected to one end of the servo motor 15. A sandwiching tool 11 sandwiching a rear part g closer to the winding coil from the iron wire tip 82 (the part corresponding to the length of the line segment iron wire 83 from the iron wire tip 821 to the place where the cutting blades 20, 25 are cut). Then, the servomotor 15 is moved together with the upright movable plate 10 to draw out the iron wire from the winding coil. Then, the pulling device 1 straightens the wrinkled iron wire through the straightening tool 1a, and places the iron wire point f, which is retreated by a predetermined length from the tip 821 of the iron wire, on the intersection 93 of the bar arrangement grid 9a. I am doing so. Further, the cutting blades 20 and 25 of the cutting device 2 are arranged so that the iron wire point f becomes an intermediate point of the iron wire tip portion 82. The predetermined length is a length necessary for bundling the intersecting portions 93 of the reinforcing grid 9a.

  The cutting apparatus 2 is capable of cutting the iron wire 8 at the cutting blade point by positioning and arranging the cutting blades 20 and 25 so that the iron wire point f becomes an intermediate point of the iron wire tip portion 82. As shown in FIG. 5, a rod 22a of an air cylinder 22 is connected to the upper end of a cutting blade 20 that can move around a support shaft 21, and a cutting blade 25 fixed to the main body base 2a is connected between both cutting blades 20 and 25. The passing iron wire 8 is cut (b in FIG. 5). When the cutting blade 20 is moved from the chain line state in which the rod 22a is contracted to the solid line state and the iron wire 8 is cut by the cutting blades 20 and 25, the tip end portion 82 of the iron wire 8 is separated, and a line segment iron wire 83 (binding wire) is formed. it can. The main body base 2 a of the cutting device 2 and the main body of the air cylinder 22 are fixed to the standing wall F.

The bending device 3 includes a frame body 3a and a presser 3b. The frame body 3a has an inverted U-shape when viewed from the side, and can be moved up and down so that the engaging portions of both lower end portions 30 (see FIG. 6) with the line segment wire 83 are separated by the cutting device 2. It is a main member for bending which can be bent in an inverted U shape by abutting on the crossing portion 93 from above and further descending. In FIG. 1, a part of the top wall G that protrudes in the direction perpendicular to the paper surface at the upper edge of the standing wall F is recessed upward, and the air cylinder body 311 of the bending device 3 is fixed thereto. A frame 3a formed in an inverted U-shaped longitudinal section is connected to the lower end of the rod 31a of the air cylinder 31.
For the retainer 3b, is suspended a support bar 39 to the front edge toward the lower surface of the fixed to the vertical wall F horizontal plate portion R _1, a hammer-like body further comprising a pressing portion 35 and the handle 36 in the lower portion of the support bar is attached It is done. The center of the handle 36 of the presser portion 35 is supported so as to be rotatable about a shaft 37 (FIG. 4). A presser portion 35 made of a board piece is integrated with the lower surface of the tip portion of the handle 36. Air cylinder body 381 is secured to the horizontal plate portion R _1, the lower end of the rod 38a of the air cylinder 38 is engaged with a loosely into the long hole 361 provided at the rear end of the handle 36, by the expansion and contraction of the rod 38a A presser portion 35 that can be moved back and forth is formed. While the rod 38a is extended, the presser part 35 is in a retracted state at the chain line position in FIG. 4B. On the other hand, when the rod 38a contracts, the presser part 35 advances counterclockwise around the shaft 37 ( By rotating), the iron wire point f on the intersection 93 can be pushed and locked. If the frame 3a is further lowered while keeping this state, the segment iron wire 83 can be bent into an inverted U shape. The lower end 30 of the frame 3a abuts against the segment iron wire 83 and bends in an inverted U-shape while applying pressure, but the lower end 30 is provided with an inward flange 301 as an engaging portion, and A concave groove is formed on the end face of the inward flange 301 that comes into contact with the wire segment 83 (FIGS. 2 and 6). Therefore, the reverse U-shaped bending process proceeds smoothly by accommodating the iron wire 8 in the groove. 2 is depicted in a horizontal sectional view across the main body of the frame 3a so that a concave groove provided in the inward flange 301 can be seen. Reference numeral 351 denotes a pin for integrating the presser portion 35 and the handle 36.

The bundling device 4 is arranged below the intersecting portion 93 so as to face the bending device 3 and a plurality of (here, four on four sides) pneumatic cylinders 41 standing on the base 40, A base 42 supported horizontally at the upper end of each pneumatic cylinder rod 41a, a shaft body 43 standing so as to be able to rotate on the base, and a pair of clamp parts disposed horizontally at the upper end of the shaft body 43 44 (FIG. 1). Reference numeral 49 indicates a bearing of the shaft body 43. When the rod 41a of the pneumatic cylinder 41 is contracted, even if it is in the clamp portion 44 at the uppermost position, it interferes with the frame 3a descending and bending the segment iron wire 83 into an inverted U shape. It is arranged at a lower position of the intersection 93 that is not (FIG. 6). When the rod 41a of the pneumatic cylinder 41 is extended, a pair of clamp portions 44 are arranged opposite each other with the lower portion of the line segment wire 83 bent in an inverted U shape by the frame 3a interposed therebetween (see FIG. 7). A horizontal upper plate 45 is fixed to the upper end of the shaft body 43. Two air cylinders 46, 46 are placed opposite to each other on the upper plate 45 at a predetermined interval, and a clamp portion 44 made of a plate piece that is L-shaped in a side view at the rod ends of both air cylinders 46 is provided at the upper edge portion. 442 (see FIG. 9) is fixed so as to be arranged on the cylinder body side. When the rod 46a extends, the clamp portion 44 advances and the inverted L-shaped vertical surface portion 441 overlaps, so that the pair of clamp portions 44 have a T-shape when viewed from the side (FIG. 9). The upper surface of the clamp portion 44 forms a flat portion. When the upper edge flange portion 442 is integrated with a T-shape when viewed from the side, a press plate portion having a flat upper surface is completed. The holding plate portion is sized so as to crush a bundling portion 85 (described later). If the lower part of the segment iron wire 83 bent in an inverted U shape is placed between the clamp portions 44, the clamp portions 44 can hold the lower portion of the segment iron wire 83 by the extension of the rod 46a. (Figure 8). A bevel gear 471 is fixed to the lower portion of the shaft body 43, and a bevel gear 472 that meshes with the bevel gear 471 is fixed to a rotating shaft 48a of a motor 48 with a reduction gear (FIG. 1). The speed reducer-equipped motor 48 is mounted on the base 42, and the shaft body 43 rotates at a predetermined rotational speed by driving the motor 48. After the pair of clamp portions 44 sandwich and hold the lower portion of the line segment wire 83, the U-shaped iron wire 83 is twisted by driving the motor 48 and rotating the shaft body 43, and the intersecting portion 93 of the reinforcing bar lattice 9. Can be united. Reference numeral 85 denotes a bound portion of the line segment wire 83 that has been bound at the intersection 93.
Further, after the U-shaped iron wire 83 is twisted to bind the intersecting portions 93 of the reinforcing bar lattice 9, the clamp portion 44 is retracted, the rod 41a of the pneumatic cylinder 41 is contracted, and the clamp portion 44 is once lowered. (FIG. 9), then, the rod 46a is again extended to make the pair of clamp portions 44 T-shaped in side view, and then the rod 41a of the pneumatic cylinder 41 is extended to move the clamp portion 44 upward. For example, the bundling portion 85 of the intersecting portion 93 can be crushed by the pressing plate portion in which the upper edge flange portion 442 is integrated.

The transfer device 5 is provided with a known transfer means, and as described above, after the intersecting portion 93 is bound by the line segment wire 83, the intersecting portion 93 of the bar arrangement lattice 9a is sequentially transferred directly below the presser 3b. It can be done. The transfer device 5, the drawing device 1, the cutting device 2, the bending device 3, and the bundling device 4 enable automatic bundling of the bar arrangement lattice 9 a having a large number of intersections 93.
The above-described drawing device 1, cutting device 2, bending device 3, binding device 4, and transfer device 5 form one automatic binding facility A. Here, as shown in FIG. 3, a plurality of automatic bundling devices are arranged to form an automatic bundling equipment machine so that bundling can be performed at several places in the side-by-side arrangement of the reinforcing bar 9a at a time.

  Next, an embodiment of a reinforcing bar binding method using the automatic binding facility A having the above configuration will be described. Prior to the automatic binding of the bar arrangement grid 9a, the bar arrangement grid 9a is formed in advance by arranging the vertical bars 91 and the horizontal bars 92 in a lattice pattern on the carriage (transfer means 5a). Then, the control unit (not shown) is inputted with the information data of the previously formed bar arrangement grid 9a, and is set so that the intersection 93 of the bar arrangement grid 9a can be sequentially transferred directly below the presser 3b. Keep it.

In the reinforcing bar binding method, the following operation automatically proceeds by pressing a start button on a control panel (not shown). First, the sandwiching tool 11 integrated with the upright movable plate 10 arranged at the chain line position (initial position) in FIG. 1 completes the correction by the correction tool 1a, and the rear part g of the iron wire drawn out linearly from the winding coil. Pinch. Specifically, when the air cylinder rod 13a extends and lowers the companion board 11b, the rear part g closer to the winding coil than the iron wire tip 82 is sandwiched between the receiving board 11a and the companion board 11b.
Subsequently, a drive command for the servo motor 15 is issued, the male screw portion 14 rotates, and the iron wire 8 is transferred to the folding device 3 side through the standing movable plate 10 and the clamping tool 11 via the female screw portion 14a. . The holding tool 11 sandwiching the rear part g near the winding coil from the iron wire tip 82 is moved to pull out the iron wire from the winding coil, and the iron wire point f that has been retracted by a predetermined length from the tip 821 of the iron wire The vertical bars 91 and the horizontal bars 92 are placed on the intersection 93 of the bar arrangement grid 9a in which the bars are arranged in a grid pattern. In this state, the servo motor 15 stops. The upright movable plate 10 stops at the forward position shown by the solid line in FIG. The iron wire 8 is straightened through the straightening tool 1a according to the drawing device 1 and extends forward from the rear part g sandwiched by the sandwiching tool 11 ahead of the correction tool point and further from the rear part g. It passes between the cutting blades 20 and 25, further crosses over the intersection 93, and reaches the iron wire tip 821.

Next, the rod 38a of the presser air cylinder 38 that is in the extended state as shown in FIG. 4 (b) contracts, and the presser part 35 advances, so that the iron wire point f on the intersecting part 93 is moved by the presser part 35. Press and lock. In this embodiment, thereafter, the air cylinder rod 13a contracts to retract the companion board 11b, and the clamping by the clamping tool 11 at the rear part g is released. FIG. 1 shows the state at this point.
Thereafter, the air cylinder 22 for the cutting device is operated, the iron wire 8 passing through the cutting blade point is cut by the cutting blades 20 and 25, the iron wire tip portion 82 of the coil iron wire 81 is cut off, and a line segment iron wire 83 is obtained (FIG. 5, FIG. 6). Subsequently, the state where the iron wire point f is pressed and held by the holding portion 35 is maintained, and then the air cylinder 31 is operated to lower the frame body 3a, and the line iron wire 83 is bent into an inverted U shape. (Fig. 6). As described above, since the concave groove is formed in the end face of the inward flange 301 that contacts the iron wire 8, the iron wire 8 is accommodated in the concave groove, and the bending process is successfully performed in an inverted U shape. Note that the pneumatic cylinder rod 41a of the bundling device 4 is in a contracted state until the processing step of bending the line segment wire 83 into an inverted U shape is completed.

When the processing step of bending the segment iron wire 83 in an inverted U shape is completed, the pneumatic cylinder rod 41a extends (FIG. 7). A pair of clamp portions 44 are disposed opposite each other with a lower portion of a line segment wire 83 bent in an inverted U shape interposed therebetween.
Thereafter, the air cylinder rod 46a extends and the lower part of the segment iron wire 83 is clamped and held by the pair of clamp portions 44 (FIG. 8). Next, the motor 48 with a speed reducer is activated to rotate the shaft body 43 to twist the U-shaped iron wire 83 and bind the intersecting portions 93 of the reinforcing bar lattice 9. This ends the binding of the reinforcing bar grid 9a. The servo motor 15 operates until the binding is completed, and the upright movable plate 10 at the initial position is retracted and returned to the chain line position (initial position) in FIG.

  In some cases, the arrangement of the reinforcing grid 9a does not end. Depending on the customer specifications, there are cases where it is required to further crush the binding portion 85 of the bar arrangement lattice 9a. In such a case, when the U-shaped iron wire 83 is twisted and the intersecting portion 93 of the reinforcing bar lattice 9 has been bound, the clamp portion 44 is retracted, and then the pneumatic cylinder rod 41a contracts to temporarily lower the clamp portion 44. (FIG. 9). The rod 46a is extended again to make the pair of clamp portions 44 T-shaped in a side view, and then the pneumatic cylinder rod 41a is extended to move the clamp portion 44 upward so that the upper edge flange portion 442 is integrated. Crush the bundling portion 85 of the intersecting portion 93 at the portion. Thus, the automatic binding at the intersecting portion 93 of the reinforcing bar 9a when the post-processing of the binding portion 85 is added, that is, the reinforcing bar binding method is completed.

A series of operations using the automatic binding facility A described above is also performed simultaneously in each automatic binding facility A of FIG. When automatic binding is completed at each intersection 93 of the bar arrangement grid 9a in which a plurality of automatic binding facilities A are arranged, the control unit of the transfer device 5 issues a command to the transfer means 5a, for example, the left side of FIG. The transfer means 5a is moved to the position, and each cross section 93 adjacent to the right of the cross section 93 that has finished binding is transferred and installed so as to be directly below the presser 3b of each automatic binding facility A.
Thereafter, the series of operations necessary for automatic binding are sequentially repeated to finish a desired reinforcing bar lattice (all crossing portions 93 of the reinforcing bar lattice 9a are bound by the line segment wire 83).

Unlike the binding wire of the cartridge of Patent Document 1, the automatic binding equipment A configured in this way uses an iron wire drawn from the winding coil, so that the iron dose is large, and the cost is low and the binding processing is performed for a long time. Endure. Moreover, since it becomes one place below the knot of the upper and lower two places of the cross | intersection part 93 seen in patent document 2, the risk of cutting at a knot is reduced by half. In addition, since the bundling portion 85 that becomes the knot is performed using the bending device 3 and the bundling device 4 that perform the same operation as that of manual work, the bundling portion 85 is surely and safely finished. Unlike the conventional large knot, the bundling portion 85 has a good appearance similar to that obtained by manual operation. Nevertheless, since automation is achieved, unlike manual work, there is no unevenness, and it is possible to maintain high quality by making it uniform. In addition, automation can reduce the cost and time of binding work. As in the embodiment, when a plurality of automatic bundling devices are arranged on the intersections 93 necessary for bundling, bundling of the plurality of intersections 93 is finished at once, and the bundling process is performed by sequentially moving horizontally, for example, bundling work This further shortens the time.
Furthermore, in a conventional handy type reinforcing bar binding machine or the like, the knot is large and requires post-processing to crush the knot. However, according to the automatic binding facility A of the present invention, the binding portion 85 is small as shown in FIG. . Moreover, even if there is a request from the customer to crush the knot, it does not require labor for each worker to crush one by one, unlike a handy type reinforcing bar binding machine. The presser plate part formed on the upper surface of the clamp part 44 moves upward, and a program is input to the control part so as to crush the binding part 85, and if the start button of the control panel is pressed, the binding part 85 is crushed. Simple.
In addition, as for the binding wire as the wire segment 83, the lengths of the vertical stripes 91 and the horizontal stripes 92 are not limited to those of Patent Document 1 related to the prior art and those that are used in the manual work and have a predetermined length. In the present invention, the distance from the initial position of the upright movable plate 10 to the advanced position (this distance becomes the length of the segment iron wire) can be adjusted easily. The optimum length of the line segment wire 83 can be selected according to the thickness of 92. Further, in Patent Document 1, since the number of windings of the binding portion is determined, there is a problem that the size and shape of the reinforcing grid cannot be flexibly changed. However, in the present invention, the rotation of the shaft body 43 is adjusted. There is an advantage that can be easily handled.

  In the present embodiment, the transfer device 5 is used as described above. Instead of the transfer device 5, the cutting device 2, the bending device 3, and the bundling device 4 as shown in FIG. The known moving device 6 can be provided. In such a case, the same operation and effect as when the transfer device 5 is used can be obtained.

  In addition, in this invention, it is not restricted to what is shown to the said embodiment, According to the objective and a use, it can change variously in the range of this invention. The shape, size, material and the like of the drawing device 1, the cutting device 2, the bending device 3, the bundling device 4, the transfer device 5, the moving device 6 and the like can be appropriately selected within the scope of the present invention according to the application.

It is one form of the automatic binding equipment of this invention, and is a schematic front view of the one equipment. It is a top view of FIG. It is a schematic plan view of an equipment machine in which a plurality of automatic binding equipments are arranged. (A) is a plan view of the presser, and (B) is a side view thereof. (A) is a plan view of the cutting device, and (b) is a side view thereof. It is a schematic front view of the bending apparatus which shows a mode that a frame body contact | connects a line segment wire from upper direction across a crossing part, and bends this. It is a schematic front view around a bending device and a bundling device arranged such that a pair of clamp portions face each other with a lower part of a U-shaped iron wire in between. It is a schematic front view around a bending device and a binding device showing a pattern in which both clamp portions sandwich a lower end portion of a U-shaped iron wire and a shaft body rotates. It is a schematic front view around a binding device showing a state in which both clamp portions are advanced and united, and the shaft body of the binding device moves up in that state.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Pulling-out apparatus 1c Moving means 11 Clamping tool 2 Cutting apparatus 20, 25 Cutting blade 3 Bending apparatus 3a Frame 3b Pressing tool 35 Pressing part 4 Bundling apparatus 43 Shaft body 44 Clamping part 5 Transfer apparatus 5a Moving means 6 Moving apparatus 8 Iron wire 82 Tip 83 Wire segment (Bundling wire)
85 Tying part (knot)
9 Reinforcing bars 9a Reinforcing bars 91 Longitudinal bars 92 Horizontal bars 93 Intersections f Steel wire points g Rear part A Automatic binding system

Claims (3)

A clamping tool capable of clamping the rear part near the winding coil from the tip of the iron wire drawn out from the winding coil and a moving means for the clamping tool are provided, and the clamping tool sandwiching the rear part is moved. And pulling out the iron wire from the winding coil, and placing the iron wire point retracted by a predetermined length from the tip of the iron wire on the intersection of the bar arrangement grid in which the vertical and horizontal bars are arranged in a lattice pattern A drawing device (1) that can be used;
A cutting device (2) capable of cutting the iron wire at the cutting blade point by arranging the position of the cutting blade so that the iron wire point is an intermediate point of the iron wire tip;
A frame body that can be moved up and down and abuts from above the line segment iron wire having the engaging portions of both lower ends cut by the cutting device, and a presser provided with a presser that can move forward and backward When the presser part advances, the iron wire point on the crossing part is pressed and locked by the presser part, and the frame body descends to make the line segment iron wire into an inverted U shape. A folding device (3) for folding;
Opposite to the bending device, it is arranged below the intersecting part so that it can rotate the standing shaft body, and a pair of opposing clamp parts provided at the upper end of the shaft body can be moved forward and backward Then, the lower end of the U-shaped iron wire bent into the U-shape is sandwiched by the advancement of both clamp portions, and the U-shaped iron wire is twisted by rotating the shaft body, thereby crossing the portion. A bundling device (4) capable of bundling;
And a transfer device (5) that includes a transfer means for transferring a bar arrangement grid in which the vertical and horizontal bars are arranged in a lattice pattern, and that can sequentially transfer the crossing portion of the bar arrangement grid immediately below the presser. A rebar lattice automatic binding facility characterized by comprising: Instead of the transfer device (5), a reinforcing bar automatic binding facility comprising a moving device (6) that enables the cutting device, the bending device, and the binding device to be horizontally moved integrally. By making the clamp part according to the binding device vertically movable and forming the upper surface of the clamp part as a flat surface, the clamp part is moved upward with respect to the knot that has finished twisting and binding the U-shaped iron wire. The automatic binding equipment for reinforcing bar lattices according to claim 1 or 2, wherein the knot can be crushed.

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