JPH06226386A - Binding method and binding machine - Google Patents

Abstract

PURPOSE:To surely bind the crossing part of a vertical reinforcement and a horizontal reinforcement with a wire. CONSTITUTION:A pair of guiding shells 18, 19 are arranged in a state to open or close freely at the lower end of the main body 15. In the guiding shells 18, 19, a guiding groove is formed with a prescribed depth along the inside circumferential surface. A wire reel 12 wound with wire 11 is attached to the main body 15 freely attachably, detachably and changeably. A feeding device 20, by which the wire 11 pulled out of the wire reel 12 is fed intermittently at a prescribed length towards the guiding groove of the guiding shells 18, 19, is arranged in the main body 15. A pair of clamping jaws 58b, 58b, by which the wire 11 is clamped and simultaneously cut at a position facing the side of the feeding device 20, is arranged in the main body 15. The clamping jaws 58b, 58b are rotated in the state that the wire 11 is clamped.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a binding method and a binding machine, and more particularly to a binding method and a binding method in which a plurality of vertical and horizontal crossing portions arranged at required intervals are twisted and tied with a wire. It is about machines.

[0002]

2. Description of the Related Art A slab as a building material has a net body in which a large number of reinforcing bars are vertically and horizontally arranged as a core body. This mesh is twisted by entwining both ends after the worker manually winds the wire (wire) around the intersection of the vertical and horizontal stripes.
It is designed to be bound by (twisting) and retain its shape. A slab is obtained by pouring concrete into the mold with the shape-retained net body positioned in the mold.

[0003]

The above-mentioned work of binding the intersections of the vertical and horizontal stripes with a wire requires a worker to perform a simple work for a long time, which causes a problem that the work efficiency cannot be improved. there were. Further, an operator prepares a large number of wires cut in advance to a predetermined size, takes out one or a few wires and winds them around the intersection, and at this time, there is a risk of injuring fingers. Moreover, the complicated work of cutting the wire into a predetermined length in advance is required. Furthermore, since the net is placed on a jig or the like installed on the floor, the work of binding the vertical and horizontal muscles is performed with the waist bent,
This causes backaches, muscle aches and the like, forcing the worker to work under poor conditions. Further, it requires labor and skill to twist and twist both ends of the wire, and there is a possibility that the binding state may vary due to the large number of binding points.

[0004]

SUMMARY OF THE INVENTION The present invention has been proposed in view of the above-mentioned problems inherent in the above-mentioned prior art, and has been proposed to suitably solve the problems. An object of the present invention is to provide a bundling method and a bundling machine that can improve the performance.

[0005]

In order to preferably overcome the above-mentioned problems and achieve the intended purpose, a binding method according to the present invention comprises a longitudinal stripe arranged in a plane so as to intersect longitudinally and laterally at a required interval. A method of twisting and binding a horizontal bar with a wire at its intersection, wherein a wire drawn out by a required length from a wire reel is wound around the reinforcing bar crossing in a ring shape, and the tip of the wire and the drawing side A state in which the crossing portion is clamped by a pair of clamping jaws, the pull-out side of the wire is cut, the clamping jaws are separated from the reinforcing rod intersection by a required distance, and the wire is stretched with respect to the reinforcing rod intersection. , And then, while rotating the clamping jaws, bring the clamping jaws closer to the rebar intersection so that the wire is held taut. The wires iron muscle intersections, characterized in that so as to twist tie.

Further, in order to preferably overcome the above-mentioned problems and achieve the intended purpose, a binding machine according to another invention of the present application is a vertical streak and a horizontal streak arranged in a plane so as to cross each other vertically and horizontally at a required interval. Is a binding machine for twisting and binding with a wire at the crossing portion, and the binding machine is arranged at the lower end of the binding machine body so as to be openable and closable, and when the main body approaches the crossing portion of the vertical and horizontal lines, A pair of guide shells that contact and open with each other and that receive a crossing portion while maintaining a required space in an opening defined inside thereof in the closed state; A guide groove having a required depth formed along the peripheral surface, a wire reel wound around a wire detachably mounted on the main body, and a wire arranged on the main body and pulled out from the wire reel. Toward the guide groove of the guide shell A position where the supply device that supplies intermittently and a wire formed into a ring shape that is supplied while being guided by the guide grooves of the guide shells are clamped and the wire faces the supply device side. The present invention is characterized by comprising a pair of clamping jaws that are cut by means of, and a twisting device that applies a twist to a wire by rotating the clamping jaws.

[0007]

EXAMPLES Next, the tying method according to the present invention will be described below with reference to a tying machine capable of suitably carrying out the tying method with reference to preferred examples. In the embodiment, a case where the binding machine is used as an automatic binding device will be described. FIG. 1 is a front view showing a schematic configuration of an automatic binding device that employs a binding machine according to an embodiment, and the binding device is, for example, a vertical streak and a horizontal streak forming a net body used as a core material of a slab. It is used for twisting and binding the intersecting part of the wire with a wire.

As shown in FIG. 1, an automatic binding device 9 according to the embodiment is a positioning jig in which a plurality of vertical streaks 16 and horizontal streaks 17 are arranged in a plane by intersecting them in the vertical and horizontal directions (X-Y directions) at required intervals. Above the tool 78, two binding machines 10, 10 movable in the X direction (vertical direction) and Y direction (horizontal direction) are respectively arranged so as to be movable up and down. The wire 11 is configured to automatically bind the intersecting portions of the plurality of vertical lines 16 and the horizontal lines 17 arranged in the tool 78.

(Regarding Positioning Jig for Reinforcing Bar) The positioning jig 78, as shown in FIG. 12, has a vertical member 79 extending in the X direction and having a plurality of recessed grooves 79a opened at the upper end at required intervals. Similarly, it is configured by vertically and horizontally assembling a horizontal member 80, which has a plurality of recessed grooves 80a formed at required intervals and extends in the Y direction, at required intervals. And this positioning jig 7
8 is mounted on a base frame 82 installed on the floor. When arranging the vertical streaks 16 and the horizontal streaks 17, for example, the vertical streaks 16 are inserted every two grooves in the groove 80a of each horizontal member 80 extending in the Y direction for positioning. In addition, every two horizontal stripes 17 are inserted and positioned in the concave groove 79a of each vertical member 79 extending in the X direction, so that the horizontal stripes 17 are placed on the vertical stripes 16 in a state of intersecting each other. As a result, the intersection of the vertical streak 16 and the horizontal streak 17 is accurately positioned, and the binding machine 1
The automatic binding by 0 and 10 can be surely performed.

The arrangement work of the vertical streaks 16 and the horizontal streaks 17 on the positioning jig 78 is performed manually by an operator, or the vertical streaks 16 and the horizontal streaks 17 are automatically moved to a required position one by one by an appropriate supply device. It is also possible to send the data in an array and arrange them. In addition, the distance between the vertical stripes 16 and the horizontal stripes 17 is defined by the concave grooves 80a, 7 for inserting the vertical stripes 16 or the horizontal stripes 17.
It can be easily changed by changing the position of 9a.
In the embodiment, as shown in FIG. 2, two positioning jigs 7 are used.
8,78 are arranged in series with a required space in the X direction,
While performing the binding work on one positioning jig 78 (first station), the other positioning jig 78 (second station)
The stations 16) are arranged so that the longitudinal stripes 16 and the transverse stripes 17 can be arranged.

(Regarding the girder and saddle) As shown in FIG. 1, a pair of pits 13, 13 are formed along the X direction on the floor surfaces on both sides of the two positioning jigs 78, 78, and each pit is formed. Rails 14 are laid on 13 respectively. A truck 22 is movably mounted on each rail 14.
(See FIG. 3), a positioning jig 78 is provided between the carriages 22 and 22.
A girder 26 that faces above is installed in the Y direction. Racks 29 are arranged inside each rail 14 along the longitudinal direction (X direction), and each rack 29 is meshed with a pinion 31 that is normally and reversely rotated by a drive motor 30 placed upright on the carriage 22. is doing. That is, by synchronously driving both drive motors 30, 30 in the forward and reverse directions, the carriages 22, 22 and the girder 26 reciprocate in the X direction along the rails 14, 14. Alternatively, the pinions 31, 31 arranged on the two carriages 22, 22 may be connected via a power transmission mechanism and rotated by a single drive motor.

On the front surface of the girder 26, as shown in FIG.
32 are arranged in parallel along the longitudinal direction (Y direction) of the girder 26, and two saddles 72,
73 is movably arranged. An adjusting motor 74 is disposed on a side portion of the first saddle 72 located on the left side in FIG. 1, and a ball screw 75 that is normally and reversely rotated by the motor 74.
However, as shown in FIG. 4, it is screwed into the feed nut 97 arranged and fixed to the other second saddle 73. That is, by driving the adjustment motor 74 forward and backward, the first saddle 72
The distance between the second saddle 73 and the second saddle 73 can be variably adjusted.

A positioning motor 77 is arranged upside down on a side portion of the second saddle 73 via a bracket 76.
As shown in FIG. 3, the gear 83 that is normally and reversely rotated by the motor 77 meshes with a driven gear 85 that rotates integrally with the pinion 84 provided on the bracket 76. The pinion 84 meshes with a rack 86 arranged in the front surface of the girder 26 and extending in the Y direction. Therefore, by driving the positioning motor 77 forward and backward, the saddles 72 and 73 connected by the ball screw 75 and the feed nut 97 reciprocate in the Y direction along the guide rails 32 and 32. Thereby, the binding machines 10, 10
The vertical stripes 16 and the horizontal stripes 1 arranged on the positioning jig 78.
It can be positioned directly above the intersection of 7.
An operation panel (not shown) having a control means such as a computer is provided on one of the carts 22, and the control means controls the drive motors 30, 30, the adjusting motor 74, and the positioning motor 77. It is configured to automatically position the binding machines 10, 10.

(Regarding the binding machine) The first binding machine 10 is disposed on the front surface of the first saddle 72, and the second saddle 73 is also provided.
The second bundling machine 10 is disposed on the front surface of each of the bundling machines 10, 10 so that the bundling machines 10, 10 are moved up and down according to a required sequence by the cylinder 98 as an elevating means arranged on the corresponding saddles 72, 73. It is configured (see Figure 4). Since the first binding machine 10 and the second binding machine 10 have the same configuration, only the configuration of one (first) binding machine 10 will be described and the other (second) binding machine 10 will be described. The same members of reference numeral 10 are designated by the same reference numerals.

(Regarding the wire reel) The first saddle 7
As shown in FIG. 5, a support plate 88 is horizontally projected from the front surface of the substrate 87 which is vertically movable on the upper and lower sides of the base plate 87. Board 8
9,89 are erected. Then, a pair of holding plates 89,
Between 89, the wire reel 12 in which the wire 11 is wound with a required diameter is detachably mounted. Inside both holding plates 89, 89, as shown in FIG.
Support member 2 insertable into the shaft hole 12a of the wire reel 12
4 are rotatably arranged, and one supporting member 24 is arranged on the holding plate 89 so as to be able to approach and separate from the other supporting member 24. Also, this support member 2
4 is always biased by the compression spring 25 in the direction of approaching the other support member 24. That is, with one support member 24 separated from the other support member 24 against the elastic force of the compression spring 25, both support members 2
After the wire reel 12 is exposed between the Nos. 4 and 24, one supporting member 24 is brought close to the other supporting member 24 (compression spring 2
(By the elasticity of 5), the wire reel 12
Both support members 24, 24 are fitted and inserted into the shaft hole 12a, and are rotatably supported. When the wire 11 is lost, the wire reel 12 can be replaced by separating the one support member 24 from the other support member 24.

A through hole 88a is formed in the support plate 88,
The wire 11 drawn out from the wire reel 12 is inserted into the through hole 88a and guided to the supply device 20 described later. Two guide members 91 provided with a pair of rollers 90, 90 rotatably in the vertical direction or the horizontal direction are arranged at required positions on the substrate 87 so as to be separated from each other in the wire supply direction, and pulled out from the wire reel 12. The formed wire 11 is configured to be smoothly guided to the supply device 20. Further, the wire reel 12 is attached to one holding plate 88.
A leaf spring 28 elastically abutting on the side surface of the reel 12 is arranged to prevent the reel 12 from rotating by inertia when the wire 11 is pulled out.

(Regarding Wire Supply Device) The Substrate 87
As shown in FIG. 5, a main body 15 composed of a plate body 15a on which the main part of the binding machine 10 is arranged and a cylindrical holding body 15b is arranged and fixed to the lower part of the front surface of the plate body 15a. , A pair of pinch rollers 33, 34 constituting the supply device 20
Are rotatably arranged. The large-diameter first pinch roller 33 is connected to an air motor 35, which is arranged on the back side of the plate 15a and is rotatable in the forward and reverse directions, via a clutch (not shown), and is rotated by the motor 35 at a required angle. It is configured. In addition, a second pinch roller 34 having a small diameter is rotatably arranged in a holder 36 which is arranged close to the position where the first pinch roller 33 is arranged and is movable in the diameter direction of the roller 33. With the wire 11 sandwiched between the first pinch roller 33 and the second pinch roller 34,
The wire 11 is fed by rotating the pinch roller 33 in the forward direction.

Since the air motor 35 supplies the wire 11 having a length required for one bundling to the guide shells 18 and 19 which will be described later, the first pinch roller 33 is normally rotated by a predetermined angle and then the clutch is disengaged. It is set to return to the origin position in this state. At this time, if the first pinch roller 33 rotates following the rotation of the motor 35, the supply length of the wire 11 changes, so in the embodiment, the brake 37 reliably stops the first pinch roller 33. It is configured to let. That is, as shown in FIG.
A bracket 38 is provided on the plate 15a near the position where the pinch roller 33 is provided, and an air cylinder 39 is provided on the bracket 38. In the piston rod 39a that points the first pinch roller 33 of the air cylinder 39,
A brake shoe 40 that can contact the peripheral surface of the roller 33 is provided. Therefore, when the first pinch roller 33 is rotated by a required angle and the clutch is disengaged, the brake shoe 40 is urged in the direction in which the piston rod 39a is extended, so that the brake shoe 40 can rotate the peripheral surface of the first pinch roller 33. And the roller 33 is prevented from rotating. When twisting the wire 11, which will be described later, the end of the cut wire 11 on the supply side is clamped by the clamping jaw 58b.
In order to prevent the wire 11 from being abutted against and bent, the first pinch roller 33 is reversely rotated after the wire 11 is cut by the clamping jaws 58b so that the cut end of the wire 11 is slightly pulled back. There is.

Through-holes 41a, 42 for allowing the wire 11 to be inserted are provided upstream and downstream of the position where the wire 11 is sandwiched between the first pinch roller 33 and the second pinch roller 34.
Guide bodies 41 and 42 having a formed therein are provided. Then, the wire 11 passing through the guide member 91 is inserted into the through hole 41a of the guide body 41 on the upstream side, and both rollers 33, 34 are inserted.
The wire 11 guided between the rollers 33 and 34 is guided toward the inner surface of the guide shells 18 and 19 along the through hole 42a of the guide body 42 on the downstream side. The through holes 41a, 42 in the guide bodies 41, 42
The wire entrance side of a is formed in a funnel shape so that the wire 11 can be smoothly inserted.

(Regarding the wire guide shell) The plate 1
A holder 15b, which is formed in a tubular shape, is arranged and fixed to the side 5a on the side opposite to the side where the substrate 87 is arranged. The holder 15b is displaced by 180 ° in the circumferential direction at one axial end (lower surface) of the holder 15b. A pair of protrusions 4
4, 44 are provided so as to project in the axial direction. Then, the first guide shell 18 is rotatably supported by the projecting piece 44 on the side separated from the supply device 20 shown in FIG. Shell 19 is pin 4
5, which are pivotally supported by both guide shells 18, 1
The coils 9 are urged to rotate by a torsion coil spring 46 wound around each pin 45 in a direction in which they approach each other (closing direction). The guide shells 18 and 19 are set so that, in the closed state shown in FIG. 5, a circular opening 81 having a required diameter is defined therein.
1 is configured so as to face the intersection of the vertical stripes 16 and the horizontal stripes 17 (see FIG. 13B). Further, the open ends 18a, 19a of the two guide shells 18, 19 are formed so as to have a V-shape that is spaced apart from each other from the abutting position thereof, and open at the intersection of the vertical stripes 16 and the horizontal stripes 17. When facing the inside of 81, the intersection can be easily guided. The protruding piece 4 on which the second guide shell 19 is disposed
4, the end of the guide body 42 is inserted in a state of being oriented to the axial center of the holding body 15b, and the opening 8 is inserted through the guide body 42.
It is set so that the wire 11 is supplied into the wire 1.

As shown in FIG. 7, the guide grooves 18 are formed on the inner peripheral surfaces of the first guide shell 18 and the second guide shell 19.
b and 19b are formed, and the tip of the wire 11 supplied through the guide body 42 first moves along the guide groove 18b of the first guide shell 18, and then the guide groove of the second guide shell 19. 19b, the tip of the protruding piece 44,4
By intersecting the wire 11 facing between the four, finally, it becomes a ring shape surrounding the opening 81. As a result, the vertical stripes 16 exposed in the openings 81 of both guide shells 18 and 19
And the wire 11 can be wound around the outside of the intersection of the horizontal stripes 17 (see FIG. 13C). The depth of the guide grooves 18b, 19b at the contact portion between the first guide shell 18 and the second guide shell 19 is set so that the guide groove 19b of the second guide shell 19 is deeper, The wire 11 is configured to smoothly transition from the first guide shell 18 to the second guide shell 19. In addition, the guide grooves 18b and 19b
The inner diameter of the wire 11 is set to be twice or more the diameter of the wire 11, and the wire 11 is set to be crossable at a position facing the protrusions 44, 44.

With the supply device 20, the guide shell 18,
The inner diameter of the wire 11 that is supplied to 19 and is formed into a ring shape is set by the inner circumferential dimension of the guide grooves 18b and 19b where the guide grooves 18b and 19b are formed. The diameters of and may change, and the guide shells 18 and 19 having the conventional dimensions may not be compatible. At this time, the guide shells 18 and 19 are replaced with those of corresponding sizes, and the supply amount of the wire 11 is adjusted, so that the vertical streaks 16 and the lateral streaks 17 of various sizes can be bound. The guide shells 18 and 19 of the first binding machine 10 arranged on the girder 26 and the second shells
The guide shells 18 and 19 of the binding machine 10 of FIG.
The winding directions of the wires 11 at the intersections of the vertical stripes 16 and the horizontal stripes 17 bound by 0 and 10 intersect at 90 °. As a result, the vertical streak 16 and the horizontal streak 17 can be reliably held in shape without being displaced.

(Regarding the twisting device) The holding body 15b
The twisting device 21 is disposed inside the, and as shown in FIG. 8, the twisting device 21 is disposed at the rear end portion of the cylindrical casing 47 that is disposed and fixed to the holding body 15b.
A pneumatic motor 48 is provided, and a known rotary drive mechanism 49 is disposed inside the pneumatic motor 48. The rotary drive mechanism 49 is configured to rotate by supplying pressure air from an air supply source (not shown) to the first passage 50 formed in the motor 48. A planetary gear mechanism 51 and a clutch shaft 52 are rotatably arranged in the pneumatic motor 48, and the rotation of the rotary drive mechanism 49 is transmitted to the clutch shaft 52 via the planetary gear mechanism 51. is there.

A second passage 53, which is different from the first passage 50, is formed in the pneumatic motor 48, and the second passage 53 is located on the front side of the pneumatic motor 48 in the casing 47.
It communicates with the relay space 54 defined on the lower surface side in FIG. By supplying pressure air to the second passage 53 from an air supply source (not shown), the air is transferred to the relay space 5
4 and then supplied to a first space 56 and a second space 57 formed in a holding member 55, which will be described later, and functions to operate the pliers 58 and the positioning pin 59.

As shown in FIG. 8, in the casing 47, a holding member 55 is rotatably arranged inside the front of the relay space 54, and a rear end of the holding member 55 is connected to the clutch shaft 52. ing. A pair of support members 60, 60 protruding from the front end of the casing 47 are provided at the front end of the holding member 55 so as to be spaced apart by a predetermined distance, and a plier 58 is pivotally supported between the support members 60, 60 so as to be openable and closable. Has been done. Therefore, by operating the pneumatic motor 48 to rotate the clutch shaft 52, the holding member 55 and the pliers 58 are rotated in a required direction with respect to the casing 47. As shown in FIG. 5, the clamping jaws 58b, 58b located at the front end of the pliers 58 face each other between the projecting pieces 44, 44 and are formed into a ring shape by the guide shells 18, 19. It is set so as to be able to clamp the intersection of the leading end and the supply side at 11.

A guide hole 61 opening to the front side is formed in the front portion of the holding member 55, and the pliers 5 are formed.
The pair of handle portions 58a, 58a forming the guide hole 6
It faces the inside of 1 over a predetermined length. Guide hole 6
1, an opening / closing member 62 having a conical groove 62a that opens forward is slidably arranged in the axial direction. The opening / closing member 62 is always retracted by a compression spring 63 (plier 5).
It is urged to move away from the handle portions 58a, 58a of 8). Further, a first space 56 is defined between the bottom portion of the guide hole 61 and the rear portion of the opening / closing member 62, and the relay space 5 is formed.
The air supplied to No. 4 is supplied to the first space 56 via the supply passage 64 formed in the holding member 55. That is, by supplying air to the first space 56, the opening / closing member 62 moves forward against the elastic force of the compression spring 63 as shown in FIG.
Both handle portions 58a, 58a move closer to each other along the inner surface of the groove portion 62a. Further, the pair of clamping jaws 58b, 58b of the pliers 58 are closed close to each other, and the wire 11 located between the jaws 58b, 58b can be clamped. Both handles 58
A compression spring 65 is elastically inserted between a and 58a, and when the opening / closing member 62 retracts, both jaws 58b and 58b are opened by the elasticity of the compression spring 65.

Further, the one clamping jaw 58 is provided.
A cutter 66 projecting in the circumferential direction is integrally formed with b, and when the intersecting portions of the wires 11 are clamped by the clamping jaws 58b, 58b, the cutter 66 cooperates with the opposing clamping jaws 58b. It is configured so that the guide body 42 side of the wire 11 can be cut.

As shown in FIG. 9, a storage portion 67 extending in the radial direction is bored on the rear side of the holding member 55, and the storage portion 67 communicates with the storage portion 67 on the outer peripheral surface of the holding member 55. A through-hole 68 that opens is provided. And the storage part 6
The large diameter portion 59a of the positioning pin 59 slidably faces 7 and the shaft portion 59b projecting from the large diameter portion 59a has a through hole 6
It faces 8 freely. Further, the compression spring 69 is elastically inserted between the large diameter portion 59a and the bottom portion of the storage portion 67 (the side opposite to the side where the through hole 68 communicates), and the positioning pin 59 is
The tip of the shaft portion 59b is always biased so as to project to the outside of the holding member 55. Further, in the storage portion 67, a second space 57 is defined between the large diameter portion 59a of the positioning pin 59 and the upper surface of the storage portion (the side where the through hole 68 communicates), and the second space 57 is formed at an appropriate position of the through hole 68. Auxiliary passage 70 communicating with one space 56
And the air supplied to the first space 56 is supplied to the second space 57 via the auxiliary passage 70 and the through hole 68. The compression spring 69 disposed in the storage portion 67 holds the positioning pin 59 even when the pressure in the first space 56 and the second space 57 reaches the pressure required to move the opening / closing member 62 forward. The elasticity is set so that it can be held in a state of protruding from the member 55.

That is, inside the holding member 55,
The pressure air supplied to the relay space 54 via the second passage 53 is supplied to the first space 56 via the supply passage 64. When the pressure in the first space 56 becomes larger than the elastic force of the compression spring 63, the opening / closing member 62 advances and the clamping jaws 58b, 58b are closed. In addition,
At this time, the auxiliary passage 70 and the through hole 68 are also provided in the second space 57.
Although the pressure air is supplied through the storage space 67 and becomes the same as the pressure in the first space 56, the compression spring 69 inserted in the storage portion 67 is inserted.
Since the elastic force is set to the above-mentioned elasticity, the shaft portion 59b of the positioning pin 59 is held in a state of protruding to the outside of the holding member 55. Then, after the clamping jaws 58 b, 58 b are closed by the opening / closing member 62, the air supplied to the first space 56 passes through the auxiliary passage 70 and the through hole 68.
And supplied to the second space 57. In this state, when the pressure in the second space 57 becomes larger than the elastic force of the compression spring 69,
The positioning pin 59 is retracted so that the tip end of the shaft portion 59b passes through the through hole 6
8 (see FIGS. 10 and 11)
reference).

Positioning pin 5 in the holding member 55
As shown in FIG. 9, a positioning member 71 formed in a substantially ring shape is arranged on the inner peripheral surface of the casing 47 corresponding to the portion where 9 is arranged. An eccentric cutout portion 71a is formed at a required portion of the inner peripheral surface of the positioning member 71, and a step portion 71b continuous with a terminal end portion of the eccentric cutout portion 71a (a position close to the inner peripheral surface of the casing 47).
Are formed. That is, the positioning pin 59
As shown in FIG. 9, when the shaft portion 59b of the holding member 55 projects from the holding member 55, it faces the eccentric cutout portion 71a and abuts on the step portion 71b to prevent the holding member 55 from rotating. There is. As a result, the clamping jaws 58b, 5b of the pliers 58 arranged on the holding member 55 are
8b is stopped and positioned at a position where the intersection of the wire 11 shown in FIG. 13 (c) can be clamped. At this time, the cutter 66 formed on one of the clamping jaws 58b is
Faces the guide body 42 side. And FIG.
As shown in FIG. 1, the shaft 59b of the positioning pin 59 is retracted into the holding member 55, so that the holding member 55 is allowed to rotate.

[0031]

Next, the operation of the binding machine according to the illustrated embodiment will be described in relation to the binding method.

Prior to the binding work by the automatic binding device 9,
The positioning jig 78 mounted on the base frame 82 at the lower first station shown in FIG. 2 is planarly arranged so that a plurality of vertical streaks 16 and lateral streaks 17 intersect each other vertically and horizontally at required intervals as shown in FIG. 11, for example. To array. The X-direction and Y-direction intervals at the intersections of the vertical stripes 16 and the horizontal stripes 17 are set and input to the control means via the input means such as a keyboard arranged on the operation panel. Further, the carriages 22 and 22 and the saddles 72 and 73 are on standby at a preset origin position, and the first input is made by inputting an interval in the XY direction at the intersection.
The adjustment motor 74 arranged in the saddle 72 is driven in a required direction, and the distance between the first binding machine 10 and the second binding machine 10 is equal to the Y-direction spacing at the intersection of the vertical streaks 16 and the horizontal streaks 17, etc. Double (for example, the space where every other intersection can be tied)
Is set to. The first binding machine 10 and the second binding machine 10 are positioned so that the guide shells 18 and 19 are deviated by 90 °. In addition, the wire 11 pulled out from the wire reel 12 is connected to the supply device 20.
In the state of being sandwiched by the pair of pinch rollers 33, 34 in FIG. Further, in the twist device 21, as shown in FIG. 8, the rotation of the holding member 55 is restricted by the positioning pin 59 provided on the holding member 55, and the clamping jaws 58b of the pliers 58,
58b is opened to hold the wire 11 in a clampable state.

In this state, a start button (not shown) on the operation panel
By pushing, the drive motors 30, 30 arranged on the carriages 22, 22 are synchronously driven, and the carriages 22, 22 move in the X direction along the rails 14, 14. Further, the positioning motor 77 arranged on the second saddle 73 is driven, and both saddles 72, 73 move in the Y direction along the guide rails 32, 32. As a result, the first binding machine 10 and the second binding machine 10 are respectively positioned directly above the intersection of the vertical stripes 16 and the horizontal stripes 17. Next, the first binding machine 10 and the second binding machine 10 are lowered through the cylinders 98, 98 with respect to the first saddle 72 and the second saddle 73, so that the corresponding intersections are bound. .

Since the work of binding the intersections by the first binding machine 10 and the second binding machine 10 is the same, the binding work by the first binding machine 10 will be described. That is,
When the first binding machine 10 is positioned right above the corresponding intersection as shown in FIG.
As shown in (b), the pair of guide shells 18 and 19 guide the intersection into the opening 81 while opening against the elastic force of the torsion coil springs 46 and 46. Then, both guide shells 18 and 19 are closed, and the lowering of the first binding machine 10 is stopped at a position where the intersecting portion faces substantially the center of the opening 81 defined by the guide shells 18 and 19.

Next, the air motor 35 rotates in the forward direction, and the wire 11 held between the pair of pinch rollers 33 and 34 is pulled out from the wire reel 12 and the first end of the guide 42 is opened. It is supplied toward the guide groove 18b of the guide shell 18. This wire 11 is shown in FIG.
As shown in FIG. 5, the first guide shell 18 moves along the guide groove 18b of the first guide shell 18 and the guide groove 19b of the second guide shell 19 and is formed into a ring shape. Siege in. Further, the wire 11 at the position where the tip of the wire 11 faces between the projecting pieces 44, 44.
When supplied to a position intersecting with the air motor 35,
Is stopped and the supply of the wire 11 is stopped (Fig. 13 (c)).
reference). When the drawing of the wire 11 from the wire reel 12 is stopped, rotation of the reel 12 due to inertia is suppressed by the leaf spring 28, and the reel 12 is held in a state where the next wire drawing can be smoothly performed. The wire 11
The supply length of 1 is preset by the forward rotation angle of the air motor 35.

When the air motor 35 stops, pressurized air is supplied to the second passage 53 of the twist device 21,
The air flows from the second passage 53 to the relay space 54 to the supply passage 64.
Is supplied to the first space 56 via. When the pressure in the first space 56 becomes larger than the elastic force of the compression spring 63, the opening / closing member 62 advances and the clamping jaws 58b, 58b are closed, as shown in FIG. As a result, the intersection of the wires 11 is clamped and the wire 11 facing the guide body 42 is cut by the cutter 66. At this time, the pressurized air is also supplied to the second space 57 through the auxiliary passage 70 and the through hole 68, so that the first space 56 is released.
However, since the compression spring 69 inserted in the storage portion 67 is set to the above-mentioned elasticity, the compression spring 69 does not compress the compression spring 69 and holds the shaft portion 59b of the positioning pin 59 as a holding member. It is held in a state of projecting outward of 55 (see FIG. 9).

Here, when the clamping jaws 58b, 58b rotate with the cut end of the wire 11 protruding from the end of the guide body 42, the jaw 58b comes into contact with the cut end of the wire 11. There is a possibility that the wire may be bent and the next wire supply may be hindered. Therefore, at the timing when the wire 11 is cut by the clamping jaws 58b, 58b, the air motor 35 slightly reverses and the pair of pinch rollers 33, 34 reaches the position where the cut end of the wire 11 faces the guide body 42. It is designed to pull back. This can prevent the cut end portion of the wire 11 from being bent by the clapping jaw 58b. When the reverse rotation of the air motor 35 is completed, the clutch is released and the air cylinder 3 of the brake 37 is released.
1 is urged to bring the brake shoe 40 into contact with the first pinch roller 33 to prevent the roller 33 from rotating. Then, the air motor 35 rotates in the reverse rotation direction and returns to the origin to stop.

At the time when the clamping and cutting of the wire 11 by the clamping jaws 58b, 58b is completed, the first binding machine 10 makes the first movement by the cylinder 98.
It is raised by a predetermined height with respect to the saddle 72. As a result, as shown in FIG. 14A, the wire 11 wound around the intersection of the vertical stripes 16 and the horizontal stripes 17 has an elliptical shape and is held in a state of being stretched with respect to the intersection.

After the wire 11 is clamped by the clamping jaws 58b, 58b, the first space 56
The air supplied to the through hole 68 passes through the auxiliary passage 70.
And supplied to the second space 57. And the second space 57
1 becomes larger than the elastic force of the compression spring 69,
As shown in FIG. 1, the positioning pin 59 retracts to move the shaft 59b.
The leading end of the holding member 55 sinks into the through hole 68, and the rotation of the holding member 55 is allowed. Next, pressurized air is supplied to the first passage 50, and the rotation drive mechanism 49 rotates. This rotation is transmitted to the holding member 55 via the planetary gear mechanism 51 and the clutch shaft 52, and the holding member 55 is rotated clockwise (in FIG. 11). As a result, as shown in FIG. 14B, the clamping jaws 58b, 58 of the pliers 58 are
The wire 11 clamped at b is twisted, and the intersection of the vertical line 16 and the horizontal line 17 is bound. When the wire 11 is twisted, the vertical stripes 16 and the horizontal stripes 1
Since the gap between the intersection of 7 and the ring-shaped wire 11 becomes small, the relative distance between the horizontal streak 17 and the clamp position of the wire 11 becomes short. Therefore, the first binding machine 10 is gradually lowered by the cylinder 98 while rotating the clamping jaws 58b, 58b (the horizontal streaks 1).
(Proximity to 7). Further, at this time, by controlling the descending amount of the binding machine 10 so that the twisted wire 11 is always held in a state of being stretched with respect to the intersection of the vertical streak 16 and the horizontal streak 17, the crossing part is controlled. With this, it is possible to securely bind without loosening.

When the twist of the wire 11 is completed,
The supply of the compressed air to the first passage 50 and the second passage 53 is stopped, the shaft 59b of the positioning pin 59 is projected from the holding member 55 by the elastic force of the compression spring 69, and the opening / closing member 62 is compressed. The wire 1 is moved backward by the elastic force of 63 and by the clamping jaws 58b, 58b.
The clamp of 1 is released. Then, the positioning pin 59
The shaft portion 59b of the holding member 5 is retained by the elastic force of the compression spring 69.
It is pressed in the direction protruding from 5. When the shaft portion 59b faces the eccentric cutout portion 71a by the rotation of the holding member 55, the shaft portion 59b gradually projects from the holding member 55 along the inner peripheral surface of the cutout portion 71a. Then, the rotation of the holding member 55 is stopped at the position where the shaft portion 59b comes into contact with the stepped portion 71b. At this time, the pair of clamping jaws 58b, 58b of the pliers 58 are arranged so that the cutter 66 is directed toward the guide body 42 as shown in FIG.
Positioning is stopped at a position where the intersection of the wire 11 supplied via 2 can be clamped.

Next, the first binding machine 10 is raised with respect to the first saddle 72 to a position where the guide shells 18 and 19 thereof do not interfere with the wire 11, thereby completing the binding of the intersection. When the first binding machine 10 and the second binding machine 10 move up, the positioning motor 77 is driven to position both the binding machines 10 and 10 directly above the next intersection in the Y direction, and Work is done. When the binding of the intersections in the Y direction is completed, the drive motors 30, 30 are synchronously driven, and the binding machines 10, 10 are moved in the X direction.
Positioned at a position corresponding to the intersection of the next row of directions. In this way, when the bundling of the preset number of intersections of the vertical streaks 16 and the horizontal streaks 17 arranged on the positioning jig 78 is completed, the carriages 22 and 22 and the saddles 72 and 73 return to the origin position. This completes the binding work at the first station. As mentioned above,
While performing the binding work at the first station,
The work of arranging the vertical streaks 16 and the horizontal streaks 17 on the positioning jig 78 of the upper second station shown in FIG.

(Regarding Another Embodiment) FIGS. 15 and 16
Shows another embodiment of the binding machine according to the present invention, in which the twist portion 11a extending from the crossing portion of the wire 11 that binds the crossing portion of the vertical bar 16 and the horizontal bar 17 is tilted. Has been done. Note that FIG. 15 and FIG.
6, the second binding machine 10 will be disclosed and described, but the first binding machine 10 will be described.
A similar device is provided in the binding machine 10.

A bracket 100 is hung vertically on the second saddle 73, and a support plate 101 that is oriented toward the intersection of the vertical stripes 16 and the horizontal stripes 17 is obliquely arranged on the lower end front surface of the bracket 100. The cylinder 10 is attached to the support plate 101.
2 is arranged, and its piston rod 102a is connected to the rear end of a rod-shaped tilting member 104 slidably arranged on an insulating member 103 protruding from the support plate 101 via an insulating joint 105. . Then, as shown in FIG. 16, the tip end of the tilting member 104 has an opening 81 defined by guide shells 18 and 19 that surround the intersection of the vertical stripes 16 and the horizontal stripes 17.
It is positioned so as to point to the twisted portion 11a of the wire 11 facing inside. Therefore, if the tilting member 104 is moved forward by urging the cylinder 102, the tilting member 10
The tip of 4 comes into contact with the twisted portion 11a and can be tilted.

The stroke of the cylinder 102 is set to a value such that the tip of the tilting member 104 does not contact the horizontal streak 17. The tip of the tilting member 104 is shown in FIG.
As shown in FIG. 5, it is formed in a V shape so that the twist portion 11a can be reliably captured. Furthermore, the tilting member 1
No. 04 is energized via a power source (not shown), and it is detected electrically that the tilting member 104 is in contact with the twisted portion 11a of the wire 11 to confirm that the wire 11 is reliably twisted. It is configured to be confirmed.

In another embodiment thus constructed, the wire 11 is twisted by the binding machine 10 and the clamping of the wire 11 by the clamping jaws 58b, 58b is released, and then the cylinder 102 is attached to the piston rod 102a thereof. Energize in the extending direction. As a result, the tilting member 104 moves forward as shown by the chain double-dashed line in FIG. 16, abuts on the twisted portion 11a facing the opening 81 of the guide shells 18 and 19, and the twisted portion 11a can be tilted.

That is, since the twisted portion 11a of the wire 11 does not extend upward at the intersection of the vertical streak 16 and the horizontal streak 17, the twisted portion 11a does not become an obstacle when stacking the bound nets. . Further, when a thin slab is manufactured by the net, it is possible to prevent the twisted portion 11a from protruding from the surface of the slab.

In the tilting member 104, the tilting member 10
Since the contact of the wire 4 with the twisted portion 11a can be electrically detected to confirm that the wire 11 is securely bound, the tilting member 104 is temporarily assumed.
When the tilting member 104 is moved forward,
If it does not come into contact with a, it is possible to set the control for performing the binding work again at the same location. In addition,
The tilting operation of the twist portion 11a by the tilting member 104 may be performed when the binding machine 10 is lifted, after the clamping of the wires 11 by the clamping jaws 58b, 58b is released.

(Regarding Modifications) In the embodiment, in the case where the clamping jaw, which clamps the wire wound around the intersection of the vertical stripe and the horizontal stripe, is pulled up by a required distance and then the jaw is rotated to twist the wire. However, the present application is not limited to this. For example, rotation may be started at the same time when the clamping jaw that clamps the wire is pulled up by a required distance, and in this case, the time required for one bundling operation can be shortened. Further, the means for moving the binding machine up and down is not limited to the cylinder, but may be means such as a combination of a motor and a ball screw. Further, it is possible to dispose the tilting member and the cylinder on the binding machine itself.

[0049]

As described above, according to the binding method and the binding machine of the present invention, when the crossing portion of the vertical stripes and the horizontal stripes is bundled with the wire, the wire is always twisted in a tensioned state. The intersection can be surely bound without slack. Further, since the worker is freed from the binding work that requires manual work, the working efficiency can be improved. Furthermore, since the continuous wires are cut automatically when they are bound, a complicated work for cutting the wires into a predetermined length in advance is not required. Furthermore, since the pair of clamping jaws that clamp the wire are always stopped in place,
There is an advantage that the wire can be reliably clamped at each binding operation.

By tilting the twisted portion of the wire, it is possible to stack a large number of bound nets in a good condition. Further, when the thin slab is manufactured using the net body, there is an advantage that the twisted portion of the wire can be prevented from protruding from the surface of the slab.

[Brief description of drawings]

FIG. 1 is a front view of an automatic binding device that employs a binding machine according to an embodiment of the present invention.

FIG. 2 is a plan view of the automatic binding device.

FIG. 3 is a side view of the automatic binding device.

FIG. 4 is a cross-sectional plan view of essential parts showing a location of a binding machine in the automatic binding device.

FIG. 5 is a front view showing the binding machine.

FIG. 6 is a side view of the binding machine.

FIG. 7 is a cross-sectional view of essential parts showing a guide shell of the binding machine.

FIG. 8 is a vertical cross-sectional view showing the twisting device of the binding machine in a state in which the clamping jaw is opened and the holding pin is prevented from rotating by the positioning pin.

9 is a transverse cross-sectional view of the location of the positioning pin in the twist device in the state shown in FIG.

FIG. 10 is a vertical cross-sectional view showing the twisting device of the binding machine in a state where the clamping jaws are closed and the rotation of the holding member is allowed.

11 is a transverse cross-sectional view of the location of the positioning pin in the twist device in the state shown in FIG.

FIG. 12 is a schematic perspective view of essential parts showing a positioning jig for arranging vertical stripes and horizontal stripes at a required interval in the automatic binding device.

FIG. 13 is a view showing a process of binding the intersection of the vertical and horizontal lines by the binding machine, showing the intersection facing the opening of the guide shell and supplying the wire to surround it. .

FIG. 14 is a diagram illustrating a process of binding the intersecting portions of the vertical and horizontal lines by the binding machine, and is an explanatory view showing a process of making the wire into an elliptical shape and twisting the wire to complete the binding.

FIG. 15 is a plan view of an essential part of an automatic binding device that employs a binding machine according to another embodiment of the present invention.

16 is an explanatory view of a main part of the binding machine shown in FIG.

[Explanation of Codes] 10 Bundling Machine 11 Wire 12 Wire Reel 15 Main Body 16 Vertical Bar 17 Horizontal Bar 18 First Guide Shell 18b Guide Groove 19 Second Guide Shell 19b Guide Groove 20 Supply Device 21 Twist Device 58b Clamping Jaw 81 Opening 102 cylinder 104 tilting member

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Seiji Takeda 1-38-9 Taito, Taito-ku, Tokyo Inside Fudou Kenken Co., Ltd. (72) Inventor Mitsuo Machida 9 Takiharu-cho, Minami-ku, Nagoya-shi, Aichi Stock Association (72) Inventor Hiroshi Kito, 9 Takiharu-cho, Minami-ku, Nagoya, Aichi Stock Company, Daido Machinery Co., Ltd.

Claims (4)

[Claims] 1. A method for twisting and binding a vertical streak (16) and a horizontal streak (17), which are arranged in a plane so as to cross each other vertically and horizontally at a required interval, by a wire (11) at the crossing point, the method comprising: Wire (11) pulled from reel (12) for the required length
Is wound around the cross section of the reinforcing bar in a ring shape, and the cross section of the tip of the wire (11) and the drawing side is clamped by a pair of clamping jaws (58b, 58b), and the wire (11) is drawn out. The side is cut, the clamping jaws (58b, 58b) are separated from the reinforcing bar intersection by a required distance, and the wire (11) is held in a tensioned state with respect to the reinforcing bar intersection, and then the clamping is performed. While rotating the jaws (58b, 58b), the clamping jaws (58b, 58b) are brought close to the rebar crossing portion so that the wire (11) is kept taut, so that the rebar crossing portion is connected to the wire (11). A binding method characterized by twisting and binding according to 11). 2. A binding machine (10) for twisting and binding a vertical streak (16) and a horizontal streak (17), which are arranged in a plane so as to cross each other vertically and horizontally at required intervals, by a wire (11) at the crossing point. It is installed at the lower end of the binding machine body (15) so that it can be opened and closed.
When 5) comes close to the intersection of the vertical streak (16) and the horizontal streak (17) and abuts on the cross, the opening (81) defined inside in the closed state is formed. A pair of guide shells (18, 19) that hold a required distance to receive the intersection, and a required shell formed along the inner peripheral surface that defines the openings (81) of the guide shells (18, 19). Depth guide grooves (18b, 19b), a wire reel (12) around which a wire (11) is wound and which is detachably mounted on the main body (15) and is arranged on the main body (15). The wire (11) pulled out from the wire reel (12) is connected to the guide groove (18) of the guide shell (18, 19).
b, 19b) A supply device for intermittently supplying the required length
(20) and the guide grooves (18b, 19b) of the two guide shells (18, 19) are fed while being guided while being clamped at the intersection of the ring-shaped wire (11), and the wire ( 11) is provided with a pair of clamping jaws (58b, 58b) for cutting at a position facing the supply device (20) side, and twisting the wire (11) by rotating the clamping jaws (58b, 58b). A binding machine comprising a twisting device (21) for giving. 3. The pair of clamping jaws (58b, 58)
b) is rotated at a position where the intersection of the wire (11), which is supplied from the supply device (20) to the guide shell (18, 19) and is formed in a ring shape, can be clamped. The binding machine described. 4. A twisting portion (11a) of a wire (11) formed by twisting and binding the intersection of the vertical streak (16) and the horizontal streak (17) is moved forward and backward by a drive means (102). The binding machine according to claim 2 or 3, wherein the binding device (104) is configured to tilt.