JPH0748931A - Device for binding reinforcing bar - Google Patents

Abstract

PURPOSE:To bind reinforcing bars each other with a wire in double winding by a method wherein a part where two reinforcing bars intersect each other is placed on an opening of the device main body, and a driving arm is lowered to the limits of its turning. CONSTITUTION:A part where two reinforcing bars 7 intersect each other is placed on an opening 86 provided to the lower part of the device main body 1, and the front end of a wire 6 is supplied to a wire double-winding mechanism 3 by lowering a driving arm 5. The wire 6 is run through a first passage 8 and is pressed at its upper and lower faces by formation rollers 14 and 15 and is formed into a circular shape that fits guide faces 57 and 58 on the upper and the lower positions, and is led to a second passage 9. The front end of the wire 6, being separated in the longitudinal direction for the first round and the second round of winding, is run through a third passage 10, and is wound lightly round the reinforcing bars 7 by operations of a feed roller 17 and a pressing roller 16, and at the same time a slider 13 is lowered. The wire 6 is then bent toward the third passage 10 in a case 11 by the end part of a distribution guide 12 and is drawn further. The lowered slider 13 cuts the front and the tail ends of the wire 6 that is wound in double-winding round the reinforcing bars 7. While the tail end is clamped, the wire 6 is twisted and the slider 13 is lifted up after completion of binding, and clamps on the front and the tail ends are unfastened.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a binding device for binding crossing portions of reinforcing bars, various steel materials, woods, etc., which are arranged in construction, civil engineering work or general industry.

[0002]

2. Description of the Related Art Conventionally, when binding the intersecting portions of reinforcing bars arranged in construction or civil engineering work, a worker preliminarily cuts the wires to be bound into a predetermined length and folds them in two. I carry it, pull it out one by one, and bind it by hand with a simple tool.

Further, a magazine containing a bundle of relatively hard steel wires (staple) having a doubly bent hook and a receiving portion is mounted in the tool body, and the hook of the staple is engaged with the receiving portion. There is also a tool to operate the arm and bind it. In addition, a large-scale binding device has been created that encloses the intersection of the reinforcing bars with a guide that opens and closes with a cylinder, puts a wire on the guide to make a single winding, and then twists with a motor, etc. For example, JP-A-63-22971).

[0004]

However, among these conventional techniques, the one manually performed requires an extra work of previously folding the wire in half and is inefficient, so that the work can be performed in a middle waist. It is hard work to do.
In addition, when using a tool, since it uses staples, it is more expensive than when using a simple wire, and since it is necessary to twist the double steel wire by pushing and pulling the arm toward the binding target, it is large. It requires power and is therefore difficult to do, for example by a weak female worker. Furthermore, in a binding device that uses a large number of actuators, since the wire is twisted after being single-wound, there is a problem that the wire is more easily unwound than when twisted after being double-wound.

Usually, a large number of reinforcing bars are used in construction and civil engineering sites, and therefore there are many binding points, and the binding work requires a great deal of labor, so automatic binding by a robot is desired. However, the magazine-type tool requires the supplementation of staples, and since it is difficult to deal with the case where the diameters of the reinforcing bars are different, automation by a robot is difficult. In addition, since the weight increases if the structure becomes large like a single-winding binding device that uses many actuators, it is not suitable for use by a robot that is required to be lightweight, small in size, and quick in response speed.

Further, in the prior art, since the reinforcing bars at the intersections are not drawn together after being pulled together, there is an irrational problem that a load other than the original twisting is applied to the twisting operation. . In addition, methods such as roll-forming iron plates into a cylindrical shape, or coil spring forming machines and wire three-dimensional forming machines that continuously form linear work pieces into a ring shape have been seen for a long time. Tools have not been provided yet.

The present invention was devised in view of these problems, and an object thereof is to provide a reinforcing bar binding device which has good work efficiency, can perform double winding, and can be automatically bound by a robot. To do. Further, the present invention, the wire is double wound while paying out ring-shaped, to automatically pull out the excess portion according to the combined diameter of the reinforcing bar, to expand the adaptive range to the reinforcing bar diameter by binding after discharging, Conventionally, the purpose is to reduce the unit cost of binding and reduce the operation labor by speeding up the binding work by automatically and continuously using inexpensive wires that have been used by hand. Further, it is intended to facilitate wearing of the tool on the robot and enable long-time operation.

[0008]

As a means therefor, a reinforcing bar binding device of the present invention has a wire storage part 2 for storing a reel-shaped wire 6 and an arm 5 as a drive source.
It is composed of the apparatus main body 1 which binds the reinforcing bars 7 with the wires 6 supplied from the wire storage 2. Then, after at least double winding the wire 6 around the reinforcing bar 7, the apparatus main body 1 is cut at the starting end and the rear end of the double wound wire 6 and twisted to bind the reinforcing bar 7. The double winding mechanism 3 and the wire storing portion 2
Wire guide mechanism that guides the wire 6 and two reinforcing bars 7 that are located above and below the wire crossing the opening 86,
The two reinforcing bars 7 are composed of an adhesion mechanism 94 that presses the two reinforcing bars 7 from above and below to firmly adhere the two reinforcing bars to each other.

The wire double-winding mechanism 3 may be composed of at least the case 11, the sorting guide 12, the slider 13, the forming roller 15, the forming roller 14, the pressing roller 16 and the feed roller 17. The case 11 includes a first passage 8 through which the wire 6 supplied from the wire storage portion 2 passes, and a reinforcing bar 7.
A tubular shape having a second passage 9 whose lower end is opened through which the wire 6 of the first winding, which is a single winding, passes, and a third passage 10 through which the wire 6 of the second winding, which is a double winding of the reinforcing bar 7, passes. is there. The sorting guide 12 guides the wire 6 on the first turn to the second passage 9 and the wire 6 on the second turn to the third passage 10 in the case 11, and further, the wire 6 on the second turn.
Is pressed to tighten the rebar 7 with the wire 6, and the wire 6 is provided so as to be flexible so as to be swingable. The slider 13 is inside the case 11,
It is provided so as to be movable up and down so as to cut the starting end and the rear end of the wire 6 in which the reinforcing bar 7 is double wound. Forming roller
15 cooperates with a plurality of forming rollers 14 to form the wire 6 into a circular shape. The feed roller 17 draws the wire 6 that has been fed, and rotates the wire 6 between the pressing roller 16 while sandwiching the wire 6 in the second round so as to discharge the starting end portion of the cut wire 6. Then, the case 11 is set to be rotatable so as to twist and bind the wire 6 in which the reinforcing bar 7 is double wound.

Further, it is preferable that the wire guide mechanism is composed of at least the guide plate 18, the swing lever 19, the notch ring 21, the opening lever 22, the clapper 20, the lever 41, and the protrusion ring 96. The guide plate 18 supports the wire 6 supplied from the wire storage portion 2 at its tip.
The swing lever 19 moves the guide plate 18 forward so as to guide the tip end of the wire 6 to the first passage 8 of the case 11.
It can be rocked freely. The notch ring 21 is a guide plate
It has a clamper 20 rotatably provided on 18 for pressing and fixing the wire 6. And the release lever 22
When the guide plate 18 moves forward and the wire 6 is supplied to the first passage 8, the notch surface of the notch ring 21 is pressed to release the clamper 20 from the wire 6, and
After double-winding the reinforcing bar 7 with, the wire 6 is detached from the notch surface of the notch ring 21 and the wire 6 is rewound.
It is provided so that it can be moved up and down so as to be pressed and held at 20.

Further, the adhesion mechanism 94 is provided with two rebars 7 that intersect with each other.
Of these, an upper block 84 for pressing the upper surface of the upper reinforcing bar, and a swingable pressing bar 88 for pressing the lower reinforcing bar 7 and the lower surface of the upper reinforcing bar 7 are preferable.

[0012]

[Operation] and

The operation of the present invention will be described with reference to the drawings showing an embodiment. FIG. 1 is an overall view of the device of the present invention, and FIG. 2 is a perspective view showing a device main body 1 of the device of the present invention. A reel-shaped wire 6 is housed in the wire housing part 2. The wire 6 is continuously sent to the device body part 1, and the wire 6 is reinforced by the action of the device body part 1 operated by driving the arm 5. It is double-wound at the intersection of 7 and bound. In addition, the device body 1 according to the present invention is
The wire double winding mechanism 3, the wire guiding mechanism 4, and the wire contacting mechanism 94 are configured as main components.

First, the wire guide mechanism will be described.
The first gear 23 is rotated by tilting the arm 5 which is the drive source (see FIG. 7). Next, the second gear 24 meshing with the first gear 23 rotates, and the first sector gear 25 coaxially assembled with the second gear 24 rotates. The torque of the first sector gear 25 is transmitted to the third gear 26 meshing with the first sector gear 25, and rotates the fifth gear 28 via the fourth gear 27 coaxially provided (see FIG. 8. , A shaft development view expressed for convenience to clearly show each gear supported on each shaft, for example, although the fourth gear 27 and the fifth gear 28 are not meshed in the drawing, Both are in mesh with each other). When the fifth gear 28 rotates, the plate piece 29 integrally assembled coaxially therewith also rotates, whereby the claw 31 assembled by the assembly pin 30 to the plate piece 29 becomes The boss notch of the one cam 32 is pressed and rotated (FIGS. 3 and 8). By the rotation of the first cam 32,
The second cam 33 that is coaxially and integrally assembled with the first cam 32 rotates (FIG. 5).

When the second cam 33 rotates, a drive lever having a rolling roller 34 which rolls on the cam surface of the second cam 33 at the upper end portion.
35 swings about the swing shaft 36 (FIG. 10). The lower end portion of the drive lever 35 is engaged with the upper end portion of the swing lever 19 by an engagement pin 37, so that the swing lever 19 also swings around the support shaft 38. The lower end of the rocking lever 19 is rotatably connected to the guide plate 18 by a connecting pin 39. Therefore, when the rocking lever 19 rocks, the guide plate 18 advances. The guide plate 18 holds the tip portion of the wire 6 supplied from the wire housing portion 2, and by moving forward, feeds the tip portion of the wire 6 to the wire double winding mechanism 3 in the next step. A plurality of bending correction rollers 90 are provided in the guide plate 18, and the bending of the wire 6 is corrected by the rollers 90.

The rear end of the guide plate 18 is connected to a rotatable lever 40 via a pin 89. That is,
The guide plate 18 is rotatably connected at its front end portion by a swing lever 19 and at its rear end portion by a rotary lever 40, thereby enabling a forward / backward movement in parallel motion. When the upper end of the swing lever 19 moves backward and the guide plate 18 moves forward, the engagement between the engagement lever 41 and the engagement pin 37 is released (FIG. 11). The engagement lever 41 is pulled downward by the elasticity of the spring 42, so that the lower end portion of the release lever 22 connected to the engagement lever 41 presses the notch portion of the notch ring 21. A clamper 20 that presses and holds the wire 6 by the elastic force of the spring 43 is rotatably assembled to the notch ring 21, and the notch ring is pressed by the opening lever 22 to press the notch portion. 21 rotates, so the clamper 20 releases the wire 6. The released wire 6 is supplied to the wire double winding mechanism 3 (FIG. 12).

When the feeding of the wire 6 is completed and the cam 33 makes one rotation to approach the original position, the slider 13 presses the end portion of the wire 6. Next, the raised ring 96, which is assembled coaxially with the first sector gear 25, rotates to rotate the lever.
By pushing one end of 41, the lever 41 moves to the support shaft 101.
The other end rotates around the
To move away from 21
20 clamps wire 6. Then lever 41 and pin 37
Is released, and the roller 34 of the lever 35 moves away from the valley of the cam 33. Therefore, the force of the spring 102 acts on the wire 6, and when the slider 13 further advances and cuts the wire 6, the guide plate 18 instantly returns to its original position (Fig. 12).

The wire 6 is fed into the double wire winding mechanism 3 by the apparatus main body 1 and the wire housing 2. That is, when the second cam 33 rotates due to the above-described action by tilting the arm 5, the pin 97 on the surface of the gear 67 coaxially fixed to the second cam 33 rotates,
The engagement lever 98 of the pin 97 swings. This engagement lever 98
The continuous lever 46 provided coaxially with is rocked (FIG. 8).

By the swing of the connecting lever 45, the connecting wire 47 connected to the connecting lever 45 is pulled.
When the connecting wire 47 is pulled, the pulling lever 48 in the wire housing part 2 to which the base end of the connecting wire 47 is connected swings, and the brake shoe fixed to the pulling lever 48 moves to the reel 99. The second sector gear 49 provided coaxially with the pulling lever 48 rotates away from the flange portion (FIG. 24). This turning power is generated by the eighth gear that meshes with the sixth gear 50 and the seventh gear 51 that are coaxially assembled.
After being transmitted to 52 and the ninth gear 53 coaxial therewith, the tenth gear
Transmitted to 54. The rotational force of the tenth gear 54 rotates the supply roller 55 provided coaxially to feed the wire 6 sandwiched between the adjacent pressing rollers 56.

Next, the operation of the double wire winding mechanism 3 will be described below. The wire 6 supplied to the wire double-winding mechanism 3 first passes through the first passage 8 and the case 11
The upper and lower surfaces are pressed by the two forming rollers 14 that pass through the inside of the case 11 and the forming roller 15 located outside the case 11 to press the upper and lower surfaces thereof into a circular shape and the upper guide surface. 57 and a lower guide surface 58 are formed into a circular shape (FIGS. 13, 14, 22, and 23). The wire 6 does not strongly contact the upper guide surface or the lower guide surface 58. Also, the wire 6 is centered on the upper guide surface 57 and jumps into the wide lower guide surface 58, and the guide piece 91
And is guided again to the second passage 9 in the case 11 (FIG. 7). Here, the engaging pin 37 of the rocking lever 19 rocked by tilting the arm 5 (the operation up to here is
As described above), the tip of the actuating lever 59 coaxial with the swing lever 19 is pressed. As a result, the actuating lever 59 rotates about the central shaft 38 and the other end is lifted. The other end is lifted and the connecting lever 60 stretched to one side by the spring 103 connected to the other end of the operating lever 59 swings, and the forming roller 15 at the tip of the lever descends to continuously feed the wire. Shaped, wire 6
When the forming roller has been sent to the extent of forming a half circle, the forming roller
While the wire 15 is further lowered and the wire 6 is gradually formed into a small diameter circle, the tip of the wire 6 is adjacent to the first passage 8 and passes through the second passage 9 below the sorting guide 12 (see FIG. 1).
4, FIG. 16, FIG. 21, FIG. 22, and FIG. 23).

By gradually reducing the diameter of the wire 6, it is possible to prevent the wire 6 on the first and second turns from being entangled. Although the second passage 9 is located beside the first passage 8, the wire 6 is reliably guided to the second passage 9 by the guide piece 91 (FIG. 8). After that, the slider 13 mounted in the case 11 rises, the standing pin 62 standing on the slider 13 also rises, and the sorting guide 12 whose one end is engaged with the standing pin 62 is The wire 6 is rotated by a rotating pin 62 provided upright on the case 11, and the other end is lowered to press the wire 6 downward (FIG. 17). At the same time, the lower end portion of the spring 63, whose upper end is fixed to the operating lever 59, circulates around the bearing boss of the oscillating operating lever 59 and presses the support pin 65 of the pressure lever 64 downward. As a result, the pressure lever 64 rotates, and the pressure roller 16 rotatably provided at the lower end of the pressure lever 64 presses the same wire 6 downward and the upper end hits the support pin 109. When the large diameter side of the wire 6 pressed down by the pressing roller 16 of 64 contacts the guide surfaces 57 and 58, one round and two rounds are vertically separated, and the tip of the wire is positioned above the sorting guide 12. After passing through the formed third passage 10, it passes through the space formed between the feed roller 17 and the pressing roller 16 (see FIGS. 17 and 1).
8, FIG. 21, FIG. 22, and FIG. 23).

When the wire (second-round wire) 6 passes through the space, the engaging pin 37 returns to its original position, so that the wire 6 is sandwiched between the feed roller 17 and the pressing roller 16.
It is pulled by the rotational force of the feed roller 17, which causes the reinforcing bar 7 to be lightly tightened. At the same time, the slider 13 descends. As a result, the rotating pin 62 standing upright from the slider 13 is also lowered to swing the sorting guide 12 and lift its end. The end of the lifted sorting guide 12 bends the wire 6 toward the third passage 10 of the case 11 to further draw the wire 6. That is, since the guide 12 is turned over again and the passed wire 6 is bent, even if the wire 6 is pulled back, the bent portion has to be licked, so that resistance is generated and the case 11 starts rotating and twists. When starting, the resistance of the wire bending portion effectively works according to the tension of the wire 6, stabilizes the binding, and plays a role as a safety function of keeping the binding torque constant.

In this state, a slight gap is formed between the bent wire 6 and the opening of the third passage 10, whereby the wire 6 is twisted to bind the reinforcing bars 7. At this time, the wire 6 can freely escape from the opening, thereby supplying the length required for the knot of the wire. At the same time, the descended slider 13 cuts the start end and the end of the wire 6 in which the reinforcing bar 7 is double wound, and clamps the end (FIGS. 19 and 12). When the wire 6 is twisted and the binding is completed, the slider 13 rises and the clamps are released at both the beginning and the end.

The lowering of the slider 13 is performed by the tip of the swing lever 45 swinging by the first cam 32.
This is achieved by pushing down the rod 66 connected to 13 (Fig. 3). The slider 13 is raised by a spring built into the case 11. The double-winding mechanism case 16 has a non-trapped passage to increase the repeatability of the unstable and unstable wire tip that is thin and easy to bend.To prevent buckling of the flexible wire, the two cases are kept as close as possible. The forming roller 14 is included, and the guide surface having a rake angle with respect to the direction perpendicular to the rolling surface again increases the repeatability of the wire tip.

In the parallel swing of the guide plate 18, the tip of the unstable wire 6 which is thin and easily bent is smoothly inserted into and removed from the first passage 8 of the case 11, and the guide plate 18 and the wire 6 are also inserted.
The misalignment with the wire introducing tube that conducts is suppressed within a range that does not hinder practically, and also, after cutting the wire 6, forms a part of the guide 12 that instantly distributes it from the case 11 to the tip of the wire 6 and two horizontal rows. This is effective in keeping the guide plate 18 away from each other and preventing interference with the bent wire portion during the cutting twist.

The guide plate 18 approaches the case 11 and guides the wire, but once the wire tip portion is introduced into the case 11, it plays its role and the wire is wound while the wire is double wound. There is no problem even if you move away from Case 11 except when you need a guide. During this time, the play of the guide plate 18 is utilized by utilizing the time, and the control of the wire discharge side lever 64 and the wire forming coupling lever 60 is shared with the cam that operates the guide plate 18.

Further, when operating the drive arm 5, it is desirable in terms of work that the load weight is averaged over the entire operation area. At the beginning of the operation sequence, the wire feeding / feeding roll from the wire storage portion 2 is used. However, since the inertia of the reel forming the wire storage portion 2 acts as a resistance, the transmission lever of the storage portion 2 is eccentric from the drive shaft center. Since the pin swings to make a sinusoidal motion, the reel starts slow and slows down. This is
It is preferable for the operating lever, and the tip of the wire is slowly introduced into the case 11, so that it is possible to avoid impact on the forming roller at the initial stage of forming, and when the third passage 10 of the sorting guide 12 is introduced, the wire The tip is in the deceleration state in the latter half of the supply, and the shock can be softened as well. Further, the mechanism for driving these is slow-forwarding and fast-returning, so that the effect is great. The wire supply roll described above may be idled by a one-way clutch or the like when returning quickly.

Further, the wire discharging roller 68, which is transmitted from the drive shaft center to be described later, at a speed higher than that of the wire driving roller 68 is pressed immediately before the wire is cut, since the lever 98 for transmitting the wire supply roll is returned to its original position. The roller 68 idles due to the action of the cam 33, and after the wire is cut, the driving roller 68 is again cut.
It is sufficient to equalize the operating load of the drive arm 5 by discharging the wire by pressurizing the wire and to correct the operating load equalization by the cam curves of the two cams on the drive shaft.

Although these two cams complete one cycle of binding operation by making one rotation at the end of the drive arm 5, they cannot be reversed due to the cam curve resulting from the operation request, and they cannot move forward and are retained. Therefore, it does not move during the movement of the device of the present invention or during the reverse rotation of the shaft 74 described later. By storing the rotational energy of the case 11 in the return stroke of the operation described later after the operation of the drive arm 5 is completed, a natural binding without waste of the binding operation by the machine and the manual operation can be obtained.

The feed roller 17 described above operates as follows. That is, when the second cam 33 rotates due to the transmission of the same force as described above due to the driving of the arm 5, the eleventh gear 67 integrally assembled with the second cam 33 rotates (FIG. 8). . This rotational force is transmitted to the twelfth gear 68 meshing with it, the coaxial thirteenth gear 69 rotates, and further the fourteenth gear 70 meshing with this rotates to rotate the drive pulley 71 coaxially provided. To do. The rotational force of the drive pulley 71 is transmitted to the rotary pulley 72 by the belt (FIG. 9). By rotating the rotary pulley 72, the feed roller 17 assembled coaxially rotates at a high speed (FIG. 7), and the wire 6 is held between the pressing roller 16 and pulled,
Lightly tighten the reinforcing bar 7 and discharge the cut pieces of the wire 6 (FIG. 18).

After the reinforcing bar 7 is double wound, the wire 6 is twisted, and its action is as follows. Arm 5
When is tilted to the rotation limit, the arm 5 returns to its original shape by the elastic force of the elastic material 73 (FIGS. 5 and 6). This allows
The first sector gear 25 rotates in the opposite direction via the above-described plurality of gears, and the fifth gear 28 and the shaft 74 supporting the fifth gear 28 and the shaft 74 supporting the fifth gear 28 and the shaft 74 supporting the fifth gear 28 and the shaft 74 supporting the same rotate reversely. . Further, the shaft 74 is slidably supported by the cam 33, the cam curve of the cam 32 works from the rotation roller 44 to the swing lever 45 support shaft at a pressure angle that prevents reverse rotation, and the pawl 31 has the boss notch of the cam 32. Spin away from. An engaging claw 75 is provided on the shaft 74,
The engaging claw 75 engages with the convex portion 76 of the flange 97 that is slidably supported by the shaft 74 to rotate the flange 77, and to rotate the large pulley 78 attached to the flange 77 (FIG. 9). ).

The rotational force of the large pulley 78 is transmitted to the small pulley 79 via the belt, the coaxial screw gear 80 rotates, and the spiral spring 81 also mounted coaxially is wound (FIGS. 3, 5 and 5). (Figure 6). Then, the coaxial screw gear 80 rotates, and the screw gear 82 screwed with the screw gear 80 rotates. Since the screw gear 82 integrally houses the cylinder 83, the screw gear 82 rotates together with the rotation of the screw gear 82 (FIG. 3). At this time, the locking bar 87, which engages with the lower hook of the cylinder 83 and prevents the rotation of the cylinder 83, prevents the reverse rotation while the energy of the spiral spring is stored, and the arm 5 returns to its original shape. At the time of the next operation, only the engaging claw 75 is returned, the engaging relationship with the convex portion 76 is released, and the pin 25 is pushed by the release pin 108 to push the cylinder.
The hook 83 is disengaged from the hook, which allows the cylinder 83 to rotate (Fig. 4). When the cylinder 83 rotates, the case 11 fixed to the lower end of the cylinder 83 idles 180 °, and then the pin 110 rotates by hooking the wire 6 so that the rebar 7 is double wound. It is twisted by the moment of inertia of the system, which completes the binding of the reinforcing bars 7 (Fig. 20).

FIG. 1 is an overall view showing an embodiment of the present invention,
FIG. 2 is a diagram showing the apparatus main body 1. In use, first, the intersecting portion of the reinforcing bars 7 is positioned in an opening portion 86 formed by laterally opening the upper block 84 provided at the lower portion of the apparatus main body 1 and the hook-shaped lower block 85. The positioning plate 104 has a U-shape that encloses the lower block 85. The positioning plate 104 is rotated by a support shaft 107, is stretched on one side by a spring 106, and is moved back and forth by an adjusting screw 105 to contact the inner surface of the reinforcing bar 7. Then, align the reinforcing bar intersection and case 11. The pressing bar 88 is rotatably supported by a bar pin 93, and is set so as to surely contact the lower surfaces of the two reinforcing bars 7 that intersect to form a step (FIGS. 2 and 8). Push bar 88
Is designed to be kept vertical by an elastic body 95 so that it can be easily inserted into the lower part of the reinforcing bar 7 by an elastic body 95. Both sides of the pressing bar 88 are inserted into the lower part of the reinforcing bar 7, and the contact part is the opening part 86. Of the drive arm 5 located in the tool body in a positional relationship with the contact portion between the upper part of the tool and the upper part of the rebar
When the lever is actuated, the lever for lifting the pressing bar 88 with the upper part of the opening 86 as a fulcrum is used as a fulcrum.
The reaction of 73 works in the direction to bring the crossed reinforcing bars 7 into close contact with each other.
The pressing bar 88 is supported by the bar pin 93 so that the force is equally transmitted to both the reinforcing bars 7, and the tool is stabilized in the direction perpendicular to the swinging direction of the drive arm 5.
Further, the opening 86 serves as a gauge of the maximum diameter of the reinforcing bar that can be bound, and the diameter of the reinforcing bar may be any combination as long as the gauge is smaller than that. Further, the pressing bar 88 can be assembled in the auxiliary hole 94 located below the reinforcing bar 7 depending on the thickness of the reinforcing bar 7.

In this state, the arm 5 is tilted to the limit of rotation so that the reinforcing bar 7 is bound with the wire 6 in a double winding. By providing the lower block 85,
The precision mechanical part of the device body 1 is covered from the bottom surface,
It is effective because it can be protected against accidental drops or bumps. In addition, in the above embodiment, the binding work is performed by the worker, but a robot can be used instead of the worker. In that case, if an actuator is used in place of the arm 5 which is the drive source of the device of the present invention, the wire storage part 2 and the device body part 1 are flexible wires 6 and connection wires 47 (and tubes covering them). Since they are connected by three-dimensional movement, they can be used for three-dimensional movement, and thus can be used in the same manner as existing welding robots, and the work area can be expanded.

Further, by miniaturizing the device of the present invention, when positioning at the initial stage of bar arrangement or bundling thin rebars, it is necessary to hold the left hand against binding when trying to shift each other, and then bundle with the right hand, or to narrow the space. When working at a place, a short arm 5 is attached as a small device dedicated to small-diameter rebar, and the arm 5 can be swung several times in order to compensate for insufficient driving force and suppress bending of the rebar (rotation stop hook). Is provided), it is possible to appropriately meet various usage requirements.

If the worker carries the battery and the motor on his back, converts the rotation of the motor into a linear motion and connects it to the device of the present invention with a wire cable, the device of the present invention can be driven electrically. It can be used for various usage forms.

[0036]

The present invention exhibits at least the following effects. (1) Since the reinforcing bars can be easily bundled by simply tilting the arm, the workability is improved as compared with the conventional manual operation. (2) Since we decided to use a reel-shaped wire,
Work efficiency is improved as compared with the conventional method of manually cutting the wires into a certain length and manually or when compared with a tool using staples.

(3) Since the reinforcing bar can be double wound, the reinforcing bar can be securely bound without slack as compared with the conventional device which can only perform single winding. (4) Since the main body of the device and the wire storage part are separated from each other, the load applied to the human body can be dispersed and a relatively large amount of wire can be carried around, so that the replenishment and collection of the wire can be reduced and the work efficiency can be improved. In addition, since the wires are not stocked in the device body, the device body can be made lightweight, which improves the operability.

(5) Since the double wire winding mechanism and the wire guide mechanism are driven by only two cams, the structure is simple, and the size and weight are reduced as compared with the case where they are driven separately by a plurality of cams. You can (6) When operating with a robot, the stock capacity of the wire can be increased by providing an auxiliary mechanism or the like, so that the work efficiency can be further improved.

(7) Since the binding operation resistance and the drive arm return spring act as pulling of the reinforcing bars, the labor consumption efficiency is good. (8) Since the drive arm stands vertically with respect to the crossed reinforcing bar surface and swings, human power can be naturally transmitted without difficulty, like a turret. (9) Increasing the buckling strength of the wire by including two wire forming rollers in the case and bringing the forming lever rollers close to each other is to prevent the wire tip after forming from proceeding further due to some trouble. Since the supply side of the forming roller has taken sufficient buckling resistance measures, only the wire on the outlet side of the roller loses thrust and is deformed. And is not an obstacle to repeatability.

(10) The fine movement of the slider in the case allows the wires to be vertically distributed in two rows, which means that the drive cam of the slider can be downsized, which is effective in downsizing the entire apparatus. is there. (11) The cutting edge on the outlet side of the case is shaped and positioned so that the wire does not contact and slide on the blade, so that the life of the blade is not adversely affected.

(12) Since the inlet of the first passage of the case is cylindrical, it is easy to take measures against abrasion. (13) Since the slider is returned by the included spring, a joint with the drive unit is not required, and the case and the like can be easily attached and detached for maintenance and replacement. (14) Since the case is directly attached to the hook end portion for positioning the case in the rotation direction, accurate positioning can be performed without causing an accumulated error.

(15) The case is different from a plane combination type tool in that the clearance between the cutting edges is a simple cylindrical fit, so that the case is easy to process after heat treatment, the assembly adjustment is time-consuming, and the quality control is advantageous. Easy to apply ceramic coating. (16) Since the reaction force is applied from the operating end portion to the cam by the spring, it is not affected by the rattling of the connecting portion, and a cumulative error does not occur, so that highly accurate transmission can be performed.

(17) In the wire feeding mechanism, the wire clamp is provided on the guide plate which swings by the parallel link, whereby the protection of the tip of the wire can be ensured and the repeatability can be enhanced. (18) Correcting the bent wire with the three rollers provided on the guide plate in a straight line is safer and more reliable than supplying the one corrected by the fixed part to the guide plate which moves in parallel at high speed. In addition, the device can be downsized.

(19) Introducing a wire linearly modified in the guide plate into a long straight guide groove suppresses the deflection of the wire tip and increases the repeatability of inserting the case into the first passage. Is effective for. (20) The guide plate may be slid by a linear guide in addition to the parallel link, but it is not a good idea to increase the rigidity and increase the weight because it is a manual tool. It should be assumed that compared to a linear guide that will be sluggish or immobile even with slight deformation, it can be considered to move lightly even if it is slightly deformed, and there is no need for assembly adjustment and consumption of lubricating oil is low A parallel link mechanism consisting of circular motion is effective.

(21) The guide plate is the second passage 9 of the wire 6.
If the guide is close to the case when the wire is fed, but the guide gets the certainty as the guide gets closer to the target, the role ends and the obstacle is present. , It is desirable to escape with a margin,
The guide plate can maintain the characteristics by the simplest method of supplying the wire and also serving as the guide.

(22) If the clamper of the guide plate and the clamp part of the case are pulled by a spring via a wire and the guide plate is instantly returned to its original position after the wire is cut, the simplest and direct way is possible. This is the quickest and most reliable method, and has the effects of increasing the repeatability of wire supply, adding little time to the operation time, and giving a time margin to the next operation to make it reliable.

(23) The drive pulley and cam for the case of twisting the wire, the discharge roller drive gear, the drive pin of the wire supply roll, the one-rotation feed mechanism and the driven gear are all supported by one pawl shaft. The drive mechanism can be simplified and the device can be reduced in size and weight. (24) Since the drive arm is automatically returned by the return spring, the work is easy and there is no need to use unnecessary nerves for the operation.

(25) In the packaging industry, the single wire wrapping binding is officially used, but the binding strength is weak and it was used only for decorative purposes, but according to the present invention, the binding strength is strong and practical. It is expected that the binding of heavy wrapping will develop. (26) In the case of bundling a large bag wire, the present situation is that the actuator is frequently used by single winding of a thick wire, and the wire is twisted with a large power through complicated sequence control. Development is expected.

(27) Since the binding element exists in every industry as in the above example, the present invention can be applied not only to cross members but also to a wide range of applications including the above example.

[Brief description of drawings]

FIG. 1 is an overall perspective view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing an apparatus main body portion of the embodiment shown in FIG.

FIG. 3 is a front sectional view showing an embodiment of the present invention.

FIG. 4 is a view taken along the line AA in FIG.

FIG. 5 is a rear sectional view showing an embodiment of the present invention.

FIG. 6 is a view taken along the line AA in FIG.

FIG. 7 is a view taken along the line BB in FIG.

FIG. 8 is a right side sectional view (axial rotation diagram) showing an embodiment of the present invention.

FIG. 9 is a front sectional view (pulley portion) showing an embodiment of the present invention.

FIG. 10 is an explanatory view (rear view) showing the operation of the wire guide mechanism in the embodiment of the present invention.

FIG. 11 is an explanatory view (rear view) showing the operation of the wire guide mechanism in the embodiment of the present invention.

FIG. 12 is an explanatory view (rear view) showing the operation of the wire guide mechanism in the embodiment of the present invention.

FIG. 13 is an explanatory view (rear view) showing the operation of the double wire winding mechanism in the embodiment of the present invention.

FIG. 14 is an explanatory view (bottom view) showing the operation of the double wire winding mechanism in the embodiment of the present invention.

FIG. 15 is an explanatory view (front view) showing the operation of the double wire winding mechanism in the embodiment of the present invention.

FIG. 16 is an explanatory view (front view) showing the operation of the double wire winding mechanism in the embodiment of the present invention.

FIG. 17 is an explanatory view (front view) showing the operation of the double wire winding mechanism in the embodiment of the present invention.

FIG. 18 is an explanatory view (front view) showing the operation of the double wire winding mechanism in the embodiment of the present invention.

FIG. 19 is an explanatory view (front view) showing the operation of the double wire winding mechanism in the embodiment of the present invention.

FIG. 20 is an explanatory diagram (rear view) showing the operation of the double wire winding mechanism in the embodiment of the present invention.

FIG. 21 is a front sectional view showing a part of the double wire winding mechanism in the embodiment of the present invention.

FIG. 22 is a left side view showing a part of the double wire winding mechanism in the embodiment of the present invention.

FIG. 23 is a right side view showing a part of the double wire winding mechanism in the embodiment of the present invention.

FIG. 24 is a front view showing the wire storage portion in the embodiment of the present invention.

[Explanation of symbols]

1 Device Main Body 2 Wire Storage 3 Wire Double Winding Mechanism 4 Wire Guide Mechanism 5 Arm 6 Wire 7 Reinforcing Bar 8 First Passage 9 Second Passage 10 Third Passage 11 Case 12 Sorting Guide 13 Slider 14 Forming Roll 15 Forming Roller 16 Pressing roller 17 Feed roller 18 Guide plate 19 Swing lever 20 Clamper 21 Notch ring 22 Release lever 23 First gear 24 Second gear 25 First sector gear 26 Third gear 27 Fourth gear 28 Fifth gear 29 Plate piece 30 Assembly pin 31 Claw 32 First cam 33 Second cam 34 Rolling roller 35 Drive lever 36 Swing shaft 37 Engaging pin 38 Support shaft 39 Connecting pin 40 Rotating lever 41 Engaging lever 42 Spring 43 Spring 44 Rotating roller 45 Swing guide 46 Connection lever 47 Connection wire 48 Tension lever 49 Second sector gear 50 Sixth gear 51 Seventh gear 52 Eighth gear 53 Ninth gear 54 Tenth gear 55 Supply roller 56 Press roller 57 Upper guide surface 5 8 Lower guide surface 59 Actuating lever 60 Connecting lever 61 Standing pin 62 Rotating pin 63 Spring 64 Pressure lever 65 Support pin 66 Rod 67 Eleventh gear 68 Twelfth gear 69 Thirteenth gear 70 Fourteenth gear 71 Drive pulley 72 Rotating pulley 73 Ammunition material 74 Shaft 75 Engaging claw 76 Convex portion 77 Flange 78 Large pulley 79 Small pulley 80 Screw gear 81 Spiral spring 82 Screw gear 83 Cylinder 84 Upper block 85 Lower block 86 Opening 87 Locking bar 88 Pressure bar 89 Pin 90 Bending correction roller 91 Guide piece 92 Auxiliary hole 93 Bar pin 94 Adhesion mechanism 95 Elastic body 96 Convex ring 97 Pin 98 Lever 99 Reel 100 Brake shoe 101 Spindle 102 Spring 103 Spring 104 Positioning plate 105 Adjustment screw 106 Spring 107 Spindle 108 Release pin

Claims (5)

[Claims] 1. A wire (6) supplied from the wire storage part (2) having a wire storage part (2) for storing a reel-shaped wire (6) and an arm (5) as a drive source. A device main body (1) that binds the reinforcing bars (7) together with the device main body (1) and at least the wire (6).
Double winding of the wire around the rebar (7), then cutting the starting end and the rear end of the double wound wire (6) and twisting the wire to wind the rebar (7) Mechanism (3), the wire double winding mechanism (3), the wire storage
Wire guide mechanism (4) for guiding the wire (6) of (2)
The two reinforcing bars (7), which are located above and below each other, are inserted through the opening (86), and the two reinforcing bars (7) are pressed from above and below the two reinforcing bars (7). Adhesion mechanism (9
4) A reinforcing bar binding device composed of 2. A first passage (8) having a plurality of forming rollers (14) through which at least a wire (6) supplied from a wire storage portion (2) passes through a double wire winding mechanism (3). The second passage (9) with an open lower end through which the wire (6) for the first lap of the rebar (7) is wound, and the wire for the second week in which the rebar (7) is double wound ( 6) The third passage through which
A tubular case (11) having (10), and guiding the wire (6) of the first round to the second passage (9) in the case (11) and the wire (6) of the second round. ) To the third passage (10), and then the wire of the second lap
(6) is pressed to lightly tighten the reinforcing bar (7) with the wire (6), and the wire (6) is flexibly fixed, so that the sorting guide (12) is swingable. In the case (11), a wire (6) in which the rebar (7) is double-wound, and a slider (13) provided so as to be movable up and down so as to cut a starting end part and a rear end part, and the wire storage Wire (6) supplied from department (2)
Is formed into a circular shape in cooperation with a plurality of forming rollers (14), the wire (6) at the first round is passed to the second passage (9), and the wire (6) at the second round is passed to the third passage. Forming roller (15) swingably provided to guide to (10), and pulling the wire of the second round with the wire (6),
From the feed roller (17) that rotates by sandwiching the wire (6) of the second round with the pressing roller (16) in order to discharge the start end of the cut wire (6). The reinforcing bar binding according to claim 1, wherein the case (11) is rotatably set so as to twist and bind the wire (6) in which the reinforcing bar (7) is double wound. apparatus. 3. A wire guide mechanism comprising: a guide plate (18) for supporting at least a tip portion of a wire (6) supplied from a wire storage portion (2); and a guide plate (18) which is moved forward. In order to guide the tip of the wire (6) to the first passage (8) of the case (11), the guide plate
A swing lever (19) connected to (18) and swingable, and the wire (6) rotatably provided on the guide plate (18).
A notch ring (21) having a clamper (20) for pressing and fixing, and when the guide plate (18) advances and the wire (6) is supplied to the first passage (8), The notch surface of the notch ring (21) is pressed to move the clamper (20) to the wire.
After the wire (6) is released and the rebar (7) is double wound with the wire (6), the wire (6) is detached from the notch surface of the notch ring (21) and the wire (6) is re-wound again. ) Opening lever (22) that can be moved up and down to press and hold
The reinforcing bar bundling device according to claim 1 or 2, comprising: 4. A wire guide mechanism comprising: a guide plate (18) for supporting at least a tip portion of a wire (6) supplied from a wire storage part (2); and a guide plate (18) which is moved forward. In order to guide the tip of the wire (6) to the first passage (8) of the case (11), the guide plate
A swing lever (19) connected to (18) and swingable, and the wire (6) rotatably provided on the guide plate (18).
A notch ring (21) having a clamper (20) for pressing and fixing, and when the guide plate (18) advances and the wire (6) is supplied to the first passage (8), The notch surface of the notch ring (21) is pressed to move the clamper (20) to the wire.
(6) Opening lever that can be moved up and down to release from
The reinforcing bar bundling device according to claim 1 or 2, comprising (22). 5. Two reinforcing bars crossing the contact mechanism (94)
Upper block (84) that presses the upper surface of the upper reinforcing bar in (7)
And a lower bar (7) and a swingable pressing bar (88) for pressing the lower surface of the upper bar (7).
Alternatively, the reinforcing bar bundling device according to item 3.