JPH046458B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to an apparatus for bending and tying a tying wire used for tying and fixing intersections of reinforcing bars in a U-shape in construction work or the like.

"Prior Art" Conventionally, sluggish iron wire for connecting reinforcing bars for civil engineering or construction work has been cut to a fixed size to form short straight wire bundles, and both ends have been tied together to form a product (Figure 7). However, this makes it difficult to use, so as shown in Fig. 8, the short wire bundle 1 is bent at the center 1a, and both ends are converged, and the converging parts are tied with a binding material 2 to make the short wire bundle 1 easy to use. (Figure 8). However, when the straight short wire bundle shown in Fig. 7 is manually bent and bound, the converging ends are weakly tightened, so even when the converging end binding machine is used, it is not possible to securely tighten the bundle, and the bending work requires a lot of labor. The problem was that it required skill and was difficult to mass produce.

``Problem to be solved by the invention'' The present invention quickly creates two straight short wire bundles with both ends aligned.
To provide a binding wire bending machine capable of folding heavily, strongly converging and tightening both ends, and binding the ends in that state.

"Means for Solving the Problems" In order to achieve the above object, the present invention provides a weighing short wire bundle holder for supporting both ends of a short wire bundle consisting of a plurality of short wires weighed in advance on a machine frame, and A lifting rod for bending the longitudinal center of the short wire bundle is provided between the tools, and a tightening clamp is provided for converging both ends of the short wire bundle bent around the rod, It is constituted by a binding wire bending machine provided with a binding machine that binds both ends of the short wire bundle when both ends are converged and tightened by the clamp.

"Function" Therefore, both ends of the linear short wire bundle A made up of a plurality of short wires weighed in advance are supported by the holders 172, 172, and the elevating rod 181 is lowered to lower the short wire bundle A.
can be bent from the longitudinal center to both sides of the rod 181. Both ends A' and A' of the bent short wire bundle A are tightening clamps 183,
183, the short wire bundle A is converged and tightened, and this state is maintained. In this state, both ends A', A' of the short wire bundle A are bound with the binding material 2 by the binding machine 19, and the Both ends A' and A' are bundled together in a converged and tightened state, and the product is taken out.

"Example" The present invention will be described below based on an example shown in the drawings.

First, the U-shaped binding wire manufacturing apparatus will be explained with reference to the plan view shown in FIG. In FIG. 3, reference numeral 11 is a drum on which a long sluggish iron wire with a diameter of 0.8 mm is wound.
Cut to cm. Since cut slatted iron wires (hereinafter referred to as short wires A'') continuously fly out from the automatic cutting machine 12, the straightening device 13 receives the short wires A'' and aligns the ends. The short wire A'' carried out from the aligning device 13 is conveyed by the conveyor 14, and during the conveyance, both ends are pressed by the aligning plate 221 of the end aligning device 22 and aligned to the center of the conveyor 14. A weighing machine 15 is provided at the end of the conveyor 14 to weigh the short wire A'' falling from the conveyor 14. When this weighing machine 15 weighs a set weight or a set number of short wire bundles A, an electric signal is generated, and the next sending device 16 scoops up the short wire bundle A and transfers it to the next transfer machine 17. Transfer machine 17
receives the short wire bundle A sent by the sending device 16 by the receivers 172, 172, and transfers it to the next bending machine 18.
send to The short wire bundle A received by the receivers 172, 172 of the transfer machine 17 is pressed on both sides by the wire bundle end aligning device 23 to align the ends. The short wire bundle A is received at its intermediate portion by the lifting rod 181, and is bent into a U-shape by the bending machine 18. The bent short wire bundle A is converged by the tightening clamp 183 so that it can be easily bundled, and the ends of the bent short wire bundle A are connected to both ends A' and A' by the binding wire 19. are tied together. Bundled short wire bundle A
is carried out into a packaging box by a guide chute 20, and the packaging box is transferred to a packaging processing facility by an automatic packaging line conveyor 21.

FIG. 4 is a front view of the automatic cutting machine 12, and FIG. 5 is a plan view thereof. The cutting machine 12 has a drum 11
A group of straightening rollers 121 (horizontal direction) and 122 (vertical direction) for straightening the unwound wire binding material, a feed roll 123, and a rotary cutter 12.
4, the binding wire material is cut every rotation of the rotary cutter 124, and the short wires A'' cut to a fixed length are continuously passed through the alignment device 13 in front.
It will fly out at a predetermined speed.

FIG. 6 is a view taken from the - line in FIG. 3, and is a short line projected from the automatic cutting machine 12
A'' hits a backing plate 135 formed of a buffer material installed at one end of the alignment plate 131 of the alignment device 13, loses its momentum, falls onto the first swash plate 132, and rolls down.

The iron wire that has rolled down from the first swash plate 132 then falls onto the second swash plate 133, where it is reversed and rolled.
At this time, the iron wire that had been obliquely distorted and rolled down on the first swash plate 132 is straightened horizontally.
Furthermore, the iron wires that have rolled down on the second swash plate 133 are slowed down by the contact plate 134 and are discharged onto the conveyor 14 in an aligned state. In this embodiment, two alignment devices 13 are provided because the short wires A'' are sent out from both sides of the automatic cutting machine 12, respectively.

The short line A'' conveyed on the conveyor 14 is connected to end alignment devices 2 installed on both sides of the conveyor 14 along the way.
The ends are aligned in the center on the conveyor 14 by receiving intermittent pressure from the aligning plates 221, 221 of No. 2 and 22.

As shown in detail in FIG. 1, a short line receiver 151 is provided below the discharge end of the conveyor 14, and this short line receiver 151 serves as a weighing stand for the weighing machine 15. Therefore, when the short wire A'' of a preset weight is accumulated on the short wire receiver 151, the conveyor 14 is temporarily stopped by the electrical output of the weighing machine 15, and the arm 161 of the delivery device 16 moves the short wire A'' on the iron wire receiver 151. The bundle A is scooped up and transferred onto the receivers 172, 172 provided on the transfer machine 17.The transfer machine 17 is mounted on the machine frame 22, and is first driven horizontally by a transfer machine driving cylinder 171 to move it onto the receivers 172, 172. Push tools 173, 173 provided on tools 172, 172
Accordingly, the short wire bundle A is raised and lowered by the lifting rod 181 of the bending machine 18.
is confronted with. Then, the transfer machine 17 moves the bending roller 18 by a lifting device 185 that moves up and down along with the lockup cylinder 184 of the lifting rod 181.
Descend to level 2. FIG. 2a is a plan view showing the state at that time. Next, the bending roller 182
rotates, and the lifting rod 18 is rotated as shown in Figure 2b.
Fold the short wire bundle A around 1. Next, the first
As shown in the figure, the clamp 183 presses and tightens both ends A' and A' of the short wire bundle A (see FIG. 2c). Next, the binding machine 19 is lowered to the position of the short wire bundle A by the cylinder for operating the binding machine, and the ends of the short wire bundle A are bundled with a binding material 2 such as a ribbon containing iron wire. Next, the lifting rod 181 is raised to the top of the lockup cylinder 184, and the clamp 1
83 and the bending rollers 182, the wire bundle loses its support and falls onto the guide chute 20 shown in FIG. 3, where it is conveyed to the next conveyor 21 for the automatic packaging line. The lifting rod 181 is lowered to an intermediate position and stopped at a position where it can receive the short wire bundle A in preparation for the next step. It is supported by the transfer machine 17 at the position shown in solid line in FIG. 1 by the force of the spring in the box 174, and is lowered against the force of the spring.

In this way, each fixed amount of binding wire material is U
It can be bundled in a bent shape and shipped as a product. In addition, in the above embodiment, an example was shown in which sluggish iron wire was used as the binding wire material, but in addition to this material, various binding wire materials such as vinyl-coated iron wire, synthetic resin wire, etc. can be used.

"Effects of the Invention" Since the present invention is configured as described above, the short wire bundle A is bent around the lifting rod, and both ends A' and A' of the bent short wire bundle A are strongly converged by the tightening clamp. Not only can it be tightened, but both ends A' and A' can be tied into a bundle while the convergent tightening state is maintained, and a strongly bound U-shaped short wire bundle can be automatically created without the need for human labor or skill. Moreover, it has the effect of being able to be mass-produced quickly.

[Brief explanation of drawings]

Fig. 1 is a front view showing the parts around the bending machine according to the present invention, Fig. 2 is a plan view for explaining the process of bending a short wire bundle in the bending machine of the present invention, and Fig. 3 is a U-shaped Fig. 4 is a front view of an automatic iron wire cutting machine, Fig. 5 is a plan view thereof, Fig. 6 is a front view of an alignment device, and Fig. 7 is a diagram showing a conventional bundling wire manufacturing device. FIG. 8 is a perspective view of a U-shaped binding wire to which the present invention is applied, and FIG. 9 is a perspective view showing another example of a single U-shaped binding wire. A...short wire bundle, A'...both ends, 172...measuring short wire bundle holder, 181...lifting rod, 183...
...Tightening clamp, 19... Binding machine.

Claims (1)

[Claims] 1. A weighing short wire bundle holder is provided in the machine frame to support both ends of a short wire bundle consisting of a plurality of short wires weighed in advance, and a measuring short wire bundle holder is provided between the holders for bending the longitudinal center of the short wire bundle. A lifting rod is provided, and a tightening clamp is provided to converge both ends of the short wire bundle bent around the rod, and when both ends are converged and tightened by the clamp, both ends of the short wire bundle are tightened. A binding wire bending machine equipped with a binding machine.