JP3241973B2 - Reinforcing wire manufacturing method and apparatus - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for manufacturing fixed-size bundles for binding rebar for construction or construction.

[0002]

2. Description of the Related Art Conventionally, U-shaped bent reinforcing bar binding wires have been used to bind building or building reinforcing bars.
No.-5623). Then, a bending machine for bending the reinforcing bar binding wire was developed (Japanese Patent Publication No. 4-6458).

[0003] The above-described reinforcing bar binding wire has a central bent portion formed by an upright pin, and is bent in a U-shape in a horizontal or vertical direction. For this reason, the central bent part is tightly tightened, a strong force is required on the thumb to grip the side parts and pull out from the U-shaped bent part with one thumb, and it is difficult to pull out quickly and smoothly. There is a problem that it is difficult to perform the work smoothly.

[0004] In addition, both ends of the U-shaped bent portion are bundled together and bound, but a space is created on both sides, and the gap between both sides of the feeding strip is large, so it is difficult to increase the reinforcing bar binding strength. There was a problem.

For this reason, as shown in FIGS. 1 (a) and 1 (b), the U-shaped bent portion is inclined like a bow of a boat viewed from the side to facilitate feeding to one line, and the bent portion is formed in a loop shape. It is necessary to increase the reinforcing bar binding strength by narrowing the width of the straight side portions of the bundled wire drawn out by firmly tightening the entire side portions.

[0006]

SUMMARY OF THE INVENTION According to the present invention, a central portion of a reinforcing bar binding wire is bent by inclining in the shape of a bow, and the bent portion is formed into a loop shape. An object of the present invention is to obtain a method and apparatus for manufacturing a reinforcing bar binding wire in which the interval width of a straight portion is reduced and reinforcing bar binding power is enhanced.

[0007]

In order to achieve the above object, the present invention comprises a step of bending a central portion in the longitudinal direction of an iron wire bundle around a center line, and forming a straight line obliquely in the same plane as the center line. A method of manufacturing a reinforcing bar tie wire, comprising the steps of: aggregating the straight portions on both sides of the central portion along with the step of bundling the gathered portions; bending a central portion in the longitudinal direction of the iron wire bundle along the straight line on both sides; A step of forming a loop in the center by gathering together, a step of obliquely intersecting the center line of the bending in the same plane including the straight line, and a step of binding the assembly part. A step of bending the central portion in the longitudinal direction of the iron wire bundle, forming a loop in the central portion by gathering the straight portions on both sides along a straight line, and tightening the base of the loop from both sides to remove the base ends of the straight portions on both sides. above with an extension to the loop side Iron wire bundles to bend the step of reducing the loop, the longitudinal central portion of the iron wire bundles was received into iron wire Taba受provided on the reinforcing bar binding wire manufacturing process machine frame, wherein the step of binding the collecting portion And a groove-shaped metal fitting which is oblique to a plane including the orthogonal direction and the direction of the iron wire bundle is provided, and both sides of the central portion of the iron wire bundle are arranged on the metal fitting side toward both sides of the metal fitting. A reciprocating arm to be brought close to the reciprocating arm, and an iron wire bundle bending presser fitting between the reciprocating arms so that the central portion of the iron wire bundle approaches and separates from the grooved metal fitting, and both side portions of the central portion of the iron wire bundle are in the plane. In addition to the guide plate for holding the steel wire bundle, the reinforcing plate for the reinforcing wire tie wire provided with the both-side clamps for the iron wire bundle is provided with a clamping device for both sides instead of the guide plate. The rebar tying wire manufacturing apparatus according to the fourth aspect of the present invention, wherein the reinforcing metal ties are combined into one. The reinforcing bar binding wire manufacturing apparatus according to the fourth or fifth aspect of the present invention, further comprising: a cross-prevention plate for preventing crossing of both ends of the iron wire bundle at both ends by tightening both ends of the iron wire bundle. The rebar tying wire manufacturing apparatus according to any one of the fourth to sixth inventions, wherein a plurality of ridges are formed on the reciprocating arm and on the iron wire bundle pressing side of the holding member for bending the wire bundle. The fourth to eighth aspects of the present invention, wherein the flat surface of the reinforcing bar binding wire manufacturing apparatus according to any one of the fourth to seventh aspects of the present invention is provided with a projection for suppressing a bent portion of the iron wire bundle at the upper end of the groove-shaped metal fitting. The reinforcing bar tie manufacturing apparatus according to any one of the fourth to eighth aspects, wherein the flat surface of the reinforcing bar tie manufacturing apparatus according to any one of the inventions is a vertical plane. Iron wire bundle bending loop approaching and separating from the holding position by the bending presser The reinforcing bar binding wire manufacturing apparatus according to any one of the fourth to tenth inventions, further comprising a base fastening device. The reinforcing bar according to any one of the fourth to eleventh inventions, further including a both-side binding machine for the bent iron wire bundle. It is configured by a binding wire manufacturing device.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, an iron wire bundle 1 for binding reinforcing steel
Is supported by the iron wire bundle receivers 5, 5, and first, the reciprocating arms 7, 7 are actuated to press the two sides of the center of the iron wire bundle 1 close to the grooved metal receiving member 6 side. It is engaged with the guide plates 9, 9 by the proximity or is held on both sides by the both-side holding devices 9 ', 9' and held in parallel in the same plane.

In this state, the metal wire bundle bending press fitting 8 is provided.
The central part of the iron wire bundle 1 is pressed into the concave groove of the groove-shaped metal receiving member 6 when the member is pressed and approached toward the groove-shaped metal member 6, and the central part is further bent, that is, bent. Obliquely to the plane, the straight portions 3 on both sides of the bent portion 2 are guided by the guide plates 9, 9 or the clamping devices 9 ', 9' are opened and guided by the both-side clamps 10a, 10a. It is held in the same plane including the direction of the iron wire bundle 1 placed on the iron wire bundle receivers 5, 5, and in this state, the center portion is formed in a bow-like shape along the groove-shaped receiving metal fitting 6 which is oblique to the plane. Incline.

In this state, both sides of the iron wire bundle tightening fittings 10, 10
Or, the straight portions 3 on both sides of the bent portion 2 are tightened together by 10a, 10a, and in this state, the reciprocating arms 7, 7 are returned to their original positions, and the center straight line c 'of the straight portion 3 is bent. Obliquely intersects the center line c of the part 2.

The above-mentioned fastening fittings 10, 10 or 10a, 10a
a, the straight portions 3 are collectively tightened to form a large bent loop L, and then the holding member 8 is bent into the bent loop L.
It can also be inserted into the inside from below and pressed against the grooved metal fitting 6 to make the center line c of the bent portion 2 oblique to the center line c ′ of the straight portion 3.

The bent portion 2 in the inclined state at the central portion is displaced upward along the groove by the concave / convex stripe 11 in the concave groove and / or the convex / concave stripe 11 of the holding member 8 for bending the wire bundle or the protrusion 11 'for suppressing the rise of the bent portion. And the reciprocating arms 7, 7 on both sides of the groove are brought closer to the groove without being shifted in advance.

[0013] Both ends of the iron wire bundle clamp 10,10 or 10
a, 10a, when the two straight portions 3, 3 are combined into one, the leading ends of the two straight portions 3, 3
0b and are fastened in a straight line without crossing each other. Thereafter, the base of the loop L is extended toward the loop L by tightening the base of the loop L from both sides by the base tightening device 12 of the bent loop L of the iron wire bundle 1, whereby the loop L is reduced. I do.

In this state, the straight portion 3 of the bent iron wire bundle 1 is bound by the binding wire 14 by the binding machine 13, and then the iron wire bundle bending presser 8 is returned from the imaginary line position in FIG. 5 to the original solid line position. The reinforcing bar binding wire is taken out as a product by returning the both-side fastening members 10, 10 or 10a, 10a from the position shown in FIG. 8 or FIG. 15 to the position shown by the solid line in FIG.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS At the front of a machine frame 4, there is provided a grooved metal fitting 6 for iron wire bundles which is inclined from upper rear to lower front. 5, 5 are provided,
A reciprocating arm 7 that moves up and down between the receivers 5 and 5 and the metal fitting 6 toward the both sides of the metal fitting 6 from below the middle of the metal fittings 5 and 5;
7 is provided.

At the middle of the reciprocating arms 7, there is provided an iron wire bundle bending presser 8 undulating from below the horizontal plane including the horizontal line and below the receivers 5, 5 toward the receiver 6.

On both the left and right sides of the receivers 5 and 5 as described above, both sides of the iron wire bundle are fastened forward and backward along the horizontal plane. At the rear, a loop base tightening device 12 for tightening the bases on both sides of the iron wire bundle is provided.

A bundling machine 13 of the both straight portions 3 is disposed in front of the fastening positions of the metal wire bundle side fastening members 10, 10 or 10a, and 10a. It is fixed to the machine frame (FIGS. 14, 15,
16 and 21).

As a second embodiment, it is possible to design the horizontal plane to be a vertical plane. In this case, the bending direction of the iron wire bundle 1 is upward or downward, and the iron wire bundle receivers 5, 5 are upright. The holder of the iron wire bundle 1 provided in the direction and contacting the receivers 5 and 5 is detachably provided.

Further, the tightening position of the iron wire bundle both-side tightening fittings 10, 10 or 10a, 10a (the positions are shown in FIGS. 7 and 15 and FIGS. 9, 10 and 19 are front views of the tightened state. ) And an iron wire bundle bending loop base tightening device 1 which comes close to and separates from the holding position of the iron wire bundle bending presser 8.
2 and 12 are provided, and the central bent portion 2 of the iron wire bundle 1 is provided.
In addition, it is possible to shorten the long diameter of the loop L by tightening both sides of the bent portion of the bent loop L at the tightening position by the both-side tightening fittings 10, 10 or 10a, that is, the base portion of the bent portion of the wire bundle. The fastening devices 12 and 12 are formed.

The tightening device 12 is composed of pressure fittings 12 ′, 12 ′ formed by a hydraulic cylinder 12 ″ from the left and right, and the pressure fittings 12 ′, 12 ′ are formed parallel to the inclination direction of the groove-shaped receiving fitting 6. A toggle or horizontal opposed hydraulic cylinder 1 is attached to the tip of a cylinder 12a that moves up and down from the upper side of the bracket 6.
The width of the whole apparatus in the left-right direction can be reduced by providing the clamping fittings 12 ', 12' of 2 ", 12", etc. (FIG. 12).

A plurality of concave and convex strips 11 perpendicular to the direction of the groove are formed in the concave groove of the concave groove-shaped receiving member 6, and the reciprocating arm 7,
A plurality of irregularities 11 perpendicular to the direction of the groove are also formed on the pressing side of the metal wire bundle bending presser 7 and the iron wire bundle bending presser 8.
By forming 1 ′, 11 ′, irregular bending due to displacement, jumping, etc. of the bent iron wire bundle 1 can be prevented.

As shown in FIGS. 3 and 5, the bases of the holding member 8 and the reciprocating arms 7, 7 are pivotally supported by front and rear horizontal cylinders 15, 15 'by pins 16, 16', respectively, and are bent forward. Guide surfaces 7 ', 8' are formed and supported by inclined guides 17, 17 'fixed to the machine frame 4, and the reciprocating arms 7, 7 are moved by the operation of the cylinders 15, 15' in FIG.
The holding member 8 is moved up and down from the solid line position to the virtual line position in the figure as shown in FIG.

The iron wire bundle double-sided tightening bracket 10, 10 or 1
0a and 10a are iron wire bundles by rotating around the upright shafts 18 and 18 from the position shown by the broken line in FIGS. 2, 4 and 6 to the position shown by the broken line in FIG. 1 are clamped in a circular or substantially square shape by clamping plates 10 ', 10'.

On the upper surfaces of the fastening members 10, 10, guide plates 9, 9 for holding the straight portions 3, 3 on both sides in parallel with the plane during bending are provided along the horizontal plane in the form of a wide flange. When the iron wire bundle 1 on 5, 5 is bent by the reciprocating arms 7, 7 and the presser 8, the straight portions 3, 3 on both sides of the iron wire 1 are held parallel to the horizontal plane, and the bent portion 2 is 8 can be bent (bent) by being sandwiched between the grooved metal fittings 6 and inclined with respect to the horizontal plane. Further, as shown in FIGS. 14 and 15 and FIGS. 17 (a) and 17 (b), both side portions of the iron wire bundle 1 supplied onto the iron wire bundle receivers 5 and 5 are clamped by clamping devices 9 'and 9', and And the fastening fittings 10 and 10 rotate to rotate
The holding devices 9 ', 9' are opened as shown in FIG. 17 (a) in a state in which both side portions of the iron wire bundle enter the guide surfaces 10'a, 10'a of the ten.

As shown in FIGS. 17 (a) and 17 (b), the holding devices 9 ', 9' are provided with holding arms 9a which are raised and lowered in the opposite direction within a longitudinally elongated groove-shaped frame 9 "provided on the machine frame 4. 9b is supported by pins p, p, and the lower end of one of the arms 9b is raised and lowered by a cylinder 30, whereby the other arm 9a is raised and lowered via a long hole 31 and a pin 32 engaged with the long hole 31. With this arrangement, both side portions of the iron wire bundle 1 on the receivers 5 and 5 can be held in a horizontal plane, and the both ends of the iron wire bundle clamping tool 10
17A and 9B simultaneously with the rotation of the holding arms 9a and 9b.
(B) Open as shown in the figure, and at that time,
The iron wire bundle 1 enters the guide surfaces 10'a, 10'a of 10a, and the straight portions 3, 3 on both sides are united and fastened together by the fastening members 10a, 10a as they are.

11 is an iron wire supply conveyor, 20 is an iron wire bundle measuring receiver, 21 is a measuring iron wire bundle lifting supply arm, and 22 is a measuring iron wire bundle holder provided at the upper end of the arms 21 and 21. 23 is a holder at both ends of the iron wire bundle 1, 23 'is a front end receiving bracket which can be tilted forward, 24 in FIG. 2 is a U-shaped frame for pivotally supporting the reciprocating arms 7, 7 in the tip, and FIGS. 1
0 ″ is a clamping plate 10 ′ for the metal wire bundle side fastening metal fittings 10 and 10,
FIG. 9 shows a tightening surface 10 ′ which is tightened in a circular shape in FIG.
At 0, it is almost squarely tightened. In FIG. 12, 25 is an iron wire take-up reel, 26 is a shaping and fixed-size cutter, 27 is a spreading agent application box, 28 is a spreading agent, 29 is an iron wire bundle end-faced flat plate, and α in FIG. The opening angle between the center line c and the straight line c ', and the one indicated by d in FIG. 13 is an iron wire bundle lifting and lowering support piece mounted on the receivers 5, 5, and e is a lifting and lowering cylinder.

[0028]

The present invention is based on the method and apparatus described above, so that the iron wire bundle is double-folded (bent), and the straight portions on both sides are tightened to be combined into one. Not only can the straight portion be along the horizontal plane and the central bent portion be shifted in the inclined direction, but also the gathered portion (base portion) of the central bent portion 2 can be tightened on an extension of the linear portions 3 on both sides to form the bent portion. It is formed into a loop, the straight portions on both sides are formed to be long, and a bent iron wire bundle for a reinforcing bar binding wire which is easy to push out to one line with a thumb while grasping the straight side portions and is easy to use is obtained. Since the straight portions on both sides of the bending line are long and the widths on both sides are close to each other, there is an effect that the strength on reinforcing bar binding can be increased.

Also, when the straight portions on both sides are tightened together, there is an effect that the cross-prevention plates do not intersect each other and can be tightened in parallel and neatly.

[Brief description of the drawings]

FIG. 1A is a side view of a reinforcing bar binding wire according to the manufacturing method of the present invention. (B) The figure is a plan view of the figure (a).

FIG. 2 is a plan view showing an apparatus for manufacturing a reinforcing bar binding wire according to the present invention.

FIG. 3 is a side view taken along the line AA of FIG. 1;

FIG. 4 is a plan view showing a state where the reciprocating arm has shifted to a bending state along a guide plate.

FIG. 5 is a side view taken along the line BB in FIG. 4;

FIG. 6 is a plan view showing a state where a central portion is bent along a guide plate.

FIG. 7 is a plan view showing a state where straight portions on both sides are tightened.

FIG. 8 is a plan view showing a state where the bent loop assembly is linearly fastened.

FIG. 9 is a front view of a circular fastening plate.

FIG. 10 is a front view of a substantially rectangular fastening plate.

FIG. 11 is an overall view.

FIG. 12 is a perspective view of an iron wire supply conveyor.

FIG. 13 is an overall side view provided with the device of the present invention.

FIG. 14 is a plan view showing a state in which both-side fastening members of the iron wire bundle are opened.

FIG. 15 is a plan view showing a state where the fastener is closed.

FIG. 16 is an overall perspective view.

FIG. 17A is a side view of the both-side clamping device.
(B) The figure is a side view of the holding state.

FIG. 18 is a side view showing a bent portion rise suppressing protrusion.

FIG. 19 is a front view of the fastening state of the fastening members on both sides of the iron wire bundle.

FIG. 20 is a plan view of FIG. 19;

FIG. 21 is a side view of a cross-prevention plate at both ends of a wire bundle.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Iron wire bundle c Center line L loop 2 Bending part c 'Straight line 3 Linear part 4 Machine frame 5 Iron wire bundle receiver 6 Recessed groove-shaped metal fitting 7 Reciprocating arm 8 Iron wire bundle bending presser fitting 9 Guide plate 9' Both side clamping device 10 Iron wire bundle both-side tightening bracket 10b Iron wire bundle both-sides tip cross-prevention plate 11 Irregularities 11 'Bending rise control projection 12 Iron wire bundle bending loop base tightening device 13 Bilateral binding machine

Claims (12)

(57) [Claims] A step of bending a central portion in the longitudinal direction of the iron wire bundle around a center line; and a step of assembling straight portions on both sides of the central portion along a straight line obliquely oblique in the same plane as the center line. And a step of binding the assembly portion. 2. A longitudinal central portion of the iron wire bundle is bent,
A step of forming a loop at the center by assembling the linear portions on both sides along a straight line, a step of obliquely intersecting the center line of the bending in the same plane including the straight line, and a step of binding the assembled portion A method of manufacturing a reinforced binding wire. 3. A longitudinal central portion of the iron wire bundle is bent,
Forming a loop at the center by assembling the straight portions on both sides along the straight line, and tightening the base of the loop from both sides to extend the base ends of the straight portions on both sides to the loop side to form the loop;
A method of manufacturing a reinforcing bar tie, comprising: a step of reducing; and a step of tying the assembly part. 4. An iron wire received by an iron wire bundle receiver provided on a machine frame.
In order to bend the central part in the longitudinal direction of the bundle,
A plane that intersects and includes the orthogonal direction and the direction of the iron wire bundle.
An oblique groove-shaped metal fitting is provided, and both sides of the metal fitting are provided.
Reciprocation to bring both sides of the central part of the iron wire bundle close to the metal fitting side
The central part of the iron wire bundle between the arm and the reciprocating arm is
An iron wire bundle bending presser which is close to and separated from the
Guide plates are provided to hold both sides of the center of the bundle in the above-mentioned plane.
And a reinforcing bar tie provided with the above-mentioned clamps on both sides of the iron wire bundle
Wire manufacturing equipment. 5. The apparatus according to claim 5, further comprising a side-side clamping device in place of the guide plate.
The two metal wire bundle side tightening brackets unite the both sides of the iron wire bundle.
5. The apparatus according to claim 4, wherein the apparatus is a fastener.
Place. 6. Both ends of a wire bundle by tightening both sides of the wire bundle.
6. An intersection prevention plate for preventing intersections.
Reinforcing wire manufacturing equipment. 7. A groove perpendicular to the direction of the groove in the groove of the groove-shaped receiving member.
To form a plurality of uneven strips, and reciprocating arms and iron wire bundle bending
With multiple irregularities formed on the iron wire bundle pressing side of
An apparatus for producing a reinforcing bar tie according to any one of claims 4 to 6. 8. The bending of the iron wire bundle at the upper end of the groove-shaped metal fitting.
8. The method according to claim 4, further comprising a projection for suppressing a rise in a curved portion.
Reinforcing wire manufacturing equipment. 9. The method according to claim 4, wherein the plane is a horizontal plane.
An apparatus for manufacturing a reinforcing bar binding wire according to any one of the claims. 10. The method according to claim 4, wherein the plane is a vertical plane.
An apparatus for manufacturing a reinforcing bar binding wire according to any of the above. 11. The tightening position of the iron wire bundle both-side tightening bracket.
Between the setting and the holding position by the iron wire bending holding fixture
Claims: A device for tightening a base part of a bending part of a deflected iron wire bundle.
An apparatus for producing a reinforcing bar tie according to any one of claims 4 to 10. 12. A machine for binding both sides of the bent iron wire bundle.
The reinforcing bar binding wire manufacturing apparatus according to any one of claims 4 to 11.
Place.