JPH0769319A - Method and apparatus for bundling object - Google Patents

Abstract

PURPOSE:To bundle reinforcing bars or the like by a single wind of two wires by automatically bending a continuous linear bundling material, make an apparatus very simple and light-weighted, and easily automate rigid bundling with strong bundling force obtained. CONSTITUTION:A continuous linear bundling material 50 is guided around an object to be bundled by a guiding means 8, and it is bent at its guided end to be turned in a U-shape thereby forming two lines surrounding the object to be bundled. Then a rear end of the bundling material is cut from the continuous material at an appropriate time, and the bent part of the material and a rear end on the other side are twisted with each other by a twisting means 13 to have the object bundled.

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 apparatus for binding rod-shaped articles such as reinforcing bars, tubular articles and other various articles with a linear binding material.

[0002]

2. Description of the Related Art Conventionally, for example, in bar arrangement work in construction work, binding and fixing of overlapping portions of reinforcing bars are usually performed manually,
Prepare an annealing-processed iron wire that has been folded in two in a U shape beforehand as a binding material, hang it on the overlapping part of the reinforcing bar, and hook the jig called a hacker on the bent part of the iron wire several times. This is done by rotating and twisting the ends of the wire together.

For binding in the above-mentioned reinforcing work, it is necessary to strongly grasp and twist the front and rear ends of the iron wire hung on the overlapping portion, but it is difficult to firmly grasp the iron wire because it is done manually. Therefore, there is a drawback that the gripping portion is apt to be loosened, the twisting work is not possible, and the overlapping portion cannot be firmly and immovably bound. On the other hand, if excessive twisting is performed to strongly bind the reinforcing bars, there is a problem that the iron wire is broken, and there is a drawback that reliability is insufficient. Moreover,
It requires special skill to hold the binding end with one hand and to push the hacker's hook into the bent part of the iron wire to rotate it with the other hand, and the labor of arranging the bar is too heavy. Yes, the work efficiency is poor, and its mechanization is required.

On the other hand, in order to meet the above requirements, a binding machine capable of mechanically binding the reinforcing bars has been proposed (for example, Japanese Patent Laid-Open No. 63-191719). However, all of the conventionally proposed binding machines have problems that the structure is very complicated, the weight is heavy, the binding time is long, and the cost is high. Further, in each of the conventionally proposed devices, one iron wire is fed out from the winding bobbin and wound around the joint portion of the reinforcing bar as it is to be bound, so that it is wound a plurality of times in order to firmly bind it. It is necessary, and the wire cost of the binding material is high, and it is easy to break because it is a single wire and lacks in certainty. Compared with the case of manual binding where the iron wire is folded in two and then bound However, there is a problem that it is difficult to obtain a strong binding force, and a binding machine that satisfies the above requirements has not been proposed yet.

[0005]

SUMMARY OF THE INVENTION In view of the above situation, the present invention provides a binding machine which is simple in construction, lightweight, and capable of binding articles such as reinforcing bars reliably and automatically quickly with a strong binding force. In particular, it is an object of the present invention to provide a method and an apparatus therefor for automatically bending a continuous linear binding material that is fed from a bobbin or the like into a double wire and strongly binding it in one turn. To do.

[0006]

As a result of various studies to achieve the above object, the present inventor has found that instead of the conventional method of winding a single wire by winding it several times, a single wire drawn from a winding bobbin is replaced with a single wire. Guide around the article to be bound and U
The present invention has been accomplished by finding an automatic bundling method in which a double wire is automatically formed around a product to be bound by feeding while being turned and the single wire is wound in a single turn.

That is, the article binding method of the present invention which achieves the above-mentioned object, guides a continuous linear binding material around the article to be bound so as to substantially surround the article to be bound, and bends at the guide end. And forming a double line around the article to be bound by feeding it while making a U-turn, and cutting the rear end of the double-lined binding material from the continuous linear binding material at an appropriate time. And a twisting step of twisting the folded-back portion of the binding material and the rear end portion of the other side to bind the article to be bound together.

It is desirable to provide a step of twisting the substantially U-shaped bent portion and / or the rear end portion of the binding material after the double line forming step, and further, after the binding material cutting step, the cut binding material It is desirable to provide a binding material rear end portion aligning step of aligning the rear end portion of the material in the direction in which the substantially U-shaped bent portion is located.

Further, the article binding apparatus of the present invention which achieves the above-mentioned method, is a feeding means for feeding a continuous linear binding material, and a binding material fed from the feeding means is arranged around the bound article so that the bound article is substantially wrapped around the bound article. Guide means to guide you to surround,
U-turn means for bending the binding material into a substantially U shape at the tip of the guide means and making a U-turn again on the guide means to form a double line; cutting means for cutting the binding material to a predetermined length; And a twisting means for twisting both ends of the binding material.

In order to surely make the U-turn of the binding material and feed it, it is desirable to provide an auxiliary feeding means for feeding the binding material downstream of the feeding means, preferably immediately upstream of the U-turn means. In order to reliably twist the ends of the two binding materials and the bent portions together, it is desirable to provide a rear end portion moving means for moving the rear ends of the cut binding materials in the direction in which the bent portions are located.

[0011]

The binding material fed by the binding material feeding means is curvedly guided by the guiding means so as to surround the article to be bound, and when it reaches the downstream end portion of the guiding means, the U-turn means is located in the advance locus thereof. And then makes a U-turn while advancing into the guiding means again, and the tip of the tying material moves backward in the enveloping guide while being regulated by the enveloping guide to enclose the article to be bound. Thus, two lines having a predetermined length are formed. Next, the binding material twisting means grips or engages the bent portion of the binding material and rotates, so that the rear end portion of the binding material positioned in the rotation trajectory of the binding material twisting means has the binding material twisting means. The bent portion side and the rear end portion side are twisted together to bind the article to be bound with one double wire.

Before twisting the bent portion side and the rear end portion side together, by twisting the bent portion and / or the rear end portion side independently, the two wires are integrated into a twisted wire shape. Thereby, the strength of the binding material is improved, and it becomes easy to firmly bind the binding portion. Furthermore, by twisting the binding material of the two wires from the end portion or by feeding the binding material back together with the bent end portion engaged with the twisting means, the binding material is tensioned and disengaged from the guide means. By directly engaging the bound article, there is no excess slack, and the length of the binding material required for binding can be short, and the binding material can be saved. Further, the rear end portion side of the binding material is pushed down by the rear end portion shifting means so as to be within the rotation locus of the twisting means, so that the rear end portion of the binding material surely engages with the twisting means, Make sure that the bent part and the rear end are twisted together.

In the twisting according to the present invention, since the twisting means engages with the substantially U-shaped bent portion to rotate the twisting means, the twisting progresses from the twisting means toward the article to be bound and is bound. Twisting can be advanced until there is no gap in the binding portion of the article, and a strong binding can be achieved.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the binding device of the present invention will be described in detail below with reference to the drawings. 1 to 5 show an embodiment of a binding device and a binding method according to the present invention. In the binding device of the present embodiment, the main body case 1 has a pistol shape so that the binding work can be easily performed by grasping it with one hand at a bar arrangement work site or the like, and only by operating the trigger switch 3 provided on the handle 2. , It can be automatically bound.

The bundling device of this embodiment has a main configuration as follows.
A bobbin supporting part 5 for rotatably supporting the winding bobbin 15 of the binding material 50, a feeding means 6 for feeding the binding material 50 from the winding bobbin 15, a cutting means 7 for cutting the binding material 50 into a predetermined length, Guiding means 8 for guiding the binding material 50 fed from the feeding means around the article to be bound, auxiliary feeding means 9,
A U-turn means 10 for bending the binding material into a substantially U-shape at the tip of the guiding means and making a U-turn to the guiding means again to form a double line, and a rear end of the binding material for twisting means described later. The rear end portion moving means 12 and the binding material 50 that move the moving material to the moving locus.
And a driving means such as a motor or a rotary solenoid for driving the feeding means, the rear end part approaching means or the twisting means.

As shown in FIG. 1, in the apparatus of this embodiment,
Among the above-mentioned means, the bobbin supporting portion 5 is provided on the upper outside of the case 1, the guide means 8 is provided at the tip of the case 1 so as to be openable and closable, and the other respective means are housed in the case.

The respective means will be described in more detail below. The feeding means 6 is composed of a drive roller 20 which is rotationally driven by a motor 16 and a free roller 21 which is arranged so as to face the drive roller 20, and these rollers are rotationally contacted from both sides of the bundling material 50 and have a fixed length. It is controlled to send one by one. The feeding means may be of any other type than the driving roller type as in this embodiment.

The cutting means 7 is provided on the downstream side of the feeding means 6 and is composed of an actuator 22 such as an electromagnetic solenoid (not shown) or a cutter 23 driven by a cam or the like interlocking with a twist shaft, and a shearing type cutter. An appropriate cutter such as a cutter having a movable blade only on one side can be adopted.

The guide means 8 is composed of a pair of surrounding guides 25 and 26 which are pivotally attached to the tip of the case 1 by an appropriate actuator 24 such as a rotary solenoid so as to be openable and closable. As a result, the article to be bound has a substantially circular arc shape, and the article to be bound a can be positioned inside the arc. As shown in FIG. 2 or 4, the cross-sections of the surrounding guides 25 and 26 are formed in a substantially gutter shape with an inner opening, and the bottom portion of the binding member 50 is fed forward and U-turned to be fed backward. It is adapted to be moved along the guide surface 27.

In the above embodiment, the surrounding guide 25,
Although 26 is configured to be automatically opened / closed by an actuator, it can be opened / closed by operating a button or lever with an operation gripping portion by a mechanical opening / closing mechanism such as a link mechanism, or by pressing a surrounding guide against a bundled article. It may be configured as follows. Further, it is not always necessary to rotate the surrounding guides on both sides, and it is sufficient if the bundled articles can be positioned in the surrounding guides when binding, so that only one side can be rotated and the other can be fixed. good.

As shown in FIGS. 1 and 3, the auxiliary feeding means 9 is provided at the end of the surrounding guide 26 in this embodiment,
A drive roller 29 that is rotationally driven by a motor 28,
Free roller 30 arranged to face the drive roller 29
(FIG. 4), and these rollers are controlled so as to rotate contact from both sides of the binding material 50 and send the binding material 50. The U-turn means 10 is provided at an end portion on the further downstream side of the auxiliary feeding means, and is located in the locus of the binding material 50 fed from the auxiliary feeding means 9, as clearly shown in FIG. A bending roller 31 for bending and guiding the binding material 50 in a substantially U shape, and a binding material 5 facing the bending roller 31.
It is composed of an auxiliary roller 32 that freely rotates while sandwiching 0. In FIG. 4, 33 and 34 accurately guide the binding material 50 bent by the bending roller 31 into the surrounding guide U.
It is a guide roller rotatably provided at the tip of the surrounding guide for turning.

The trailing end portion aligning means 12 is for aligning the trailing end portion of the binding material 50 guided around the article a to be bound a in a double-line state by the surrounding guide to the twisting position. In the example, the rotary solenoid 35 is configured to rotate the binding material rear end portion shifting lever 36 up and down in FIG.

The binding material twisting means 13 is a motor 40.
Twisted shaft 41 that is driven to rotate via a speed reducer
A clamp 42 for holding the bent portion of the binding material 50 is attached to the tip of the twist shaft 41 so as to be openable and closable. An open / close sleeve 43 is slidably fitted to the twist shaft 41 to open and close the clamp 42. The front end side of the opening / closing sleeve 43 serves as a cam surface for closing the clamp, and a part of the sleeve wall projects further forward from the cam surface to provide an operating pin 44 for both opening the clamp and winding the rear end of the binding material. It is a holding portion 45.
A flange 48 is formed on the outer peripheral surface of the opening / closing sleeve 43 to engage with an opening / closing pin 47 attached to a plunger of an opening / closing solenoid 46 fixed to the case, and the opening / closing sleeve 43 is slid between a clamp closed position and a clamp open position. It is designed to move.

Then, a motor 16 for driving the drive roller 20 of the feeding means 6, an actuator 22 for driving the cutting means, an actuator 24 for opening and closing the surrounding guide,
A motor 28 for auxiliary feeding means, a rotary solenoid 35 for driving the rear end part shifting means, a motor 4 for twisting means
0, a microcomputer for controlling the opening / closing solenoid 46 for opening / closing the sleeve is built in the case, and when the trigger switch 3 is operated, it automatically operates according to a preset program. There is. In this embodiment, a battery is built in the battery housing portion 4 of the case 1 as a driving power source for convenience of carrying, but it is of course possible to connect to an external power source so as to supply external power. it can.

A guide is arranged between the cutting means 7 and the guide means 8 so as not to interfere with the operation of each means interposed therebetween, so that the binding material 50 can pass through a predetermined passage satisfactorily. I can do it.

A method of binding the articles to be bound by the binding apparatus of the present embodiment having the above-mentioned configuration will be described with reference to the process chart of FIG. The surrounding guides 25 and 26 are opened (the state shown in FIG. 1) and positioned on the outer peripheral portion of the article a to be bound, and then the surrounding guides 25 and 26 are closed to bring the present apparatus to the binding position as shown in FIG. Hold. In this state, by pressing the trigger switch 3, the driving roller 20 of the feeding means 6 is pushed.
Rotates to start feeding the binding material 50. The binding material feed amount is controlled by detecting the number of rotations of the motor with an encoder and controlling the rotation of the motor.

The binding material 50 fed from the winding bobbin 15 by the feeding means 6 goes straight along a guide (not shown) (FIG. 5 (a)) and reaches the surrounding guide of the guiding means 8 to surround the article to be bound. When the tip reaches the auxiliary feeding means 9, the driving roller 29 which is rotationally driven in synchronization with the driving roller 20 of the feeding means 6 further applies a feeding force, By making contact with the bending roller 31 located in the course of travel, it makes a U-turn while being bent in a substantially U-shape, and is guided by the guide rollers 33 and 34 to enter the surrounding guide again to start the double-line formation. To be done.

When the binding material 50 is further sent out in this state, the tip end of the binding material 50 moves backward in the surrounding guide while being regulated by the surrounding guide and has a predetermined length of parallel so as to surround the article to be bound. Two lines are formed (Fig. 5
(c)). When the two wires having a predetermined length are formed, the feeding of the binding material 50 is stopped. Then, the open / close solenoid 46 of the twisting means 13 is operated to slide the open / close sleeve 43 from the position shown in FIG. 1 to the left, whereby the clamp 42 is closed and the substantially U-shaped bent portion 51 of the binding material 50 is removed. Hold (FIG. 5 (d)). In this state, the twisted shaft is rotated several times to twist the two wires, and the two wires are integrated into a twisted wire (FIG. 5 (e)). As a result, the strength of the binding material 50 can be improved, and the two wires can be integrated to firmly bind the crossing portion, and the binding material 50 simply bent in a U shape can bind the crossing portions of the reinforcing bars. As in the case of the above, there is no possibility that the two wires will be wound around the reinforcing bar at the crossing or the crossing portion during the binding and loosened after the binding.

By being twisted from the bent portion side, tension is applied to the binding material 50 so that the binding material 50 comes out of the surrounding guide and comes into direct contact with the outer peripheral portion of the article to be bound (FIG. 5 (e)). Next, the cutting means 7 cuts the binding material rear end portion to cut the binding material 50 formed in the double line from the continuous line, and the rear end portion shifting lever 36 is actuated to operate the binding material 50 rear end portion 52. Is pushed down until it is positioned within the rotation locus of the operating pin 44.
(FIG. 5 (f)). In this state, the bent portion side and the rear end portion side of the binding material are substantially parallel to each other, and the twisting shaft 41 rotates, so that the operating pin 44 engages with the rear end portion of the binding material 50, and the substantially U-shape. The folded back portion and the rear end portion are twisted and twisted together to bind the articles to be bound (FIG. 5 (g)). In addition, the binding material 5
The cutting step of 0 may be performed before the twisting step of the two binding materials 50.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various design changes are possible.
For example, in the above-described embodiment, the double wire is twisted only from the bent portion side after forming the double wire of the binding material 50, but the rear end portion in which the rear end portion of the double wire is twisted to the downstream side of the cutting means. By disposing the twisting means and twisting the two wires from both the bent portion side and the other rear end portion, the whole becomes a twisted wire state and is more surely integrated. As the rear end twisting means, for example, a rotary disk having a groove through which the binding material for the two wires can pass can be provided, and the rotary disk can be rotated by an appropriate actuator.

The twisting process of the double wire itself is not always necessary, and it is of course possible to bind the wires without the process. It is also possible to reverse feed the two wires after the formation of the two wires while holding the clamp of the twisting means. As a result, the binding material 50 is tensioned and disengaged from the guide means to directly engage with the bound article, so that there is no excess slack and the binding material 5 necessary for binding is bound.
Since the length of 0 is short, the binding material 50 can be saved.

Further, in the above embodiment, the clamp 42 is fitted and gripped in the substantially U-shaped bent portion, but it is sufficient that the clamp can grip the U-shaped bent portion, and the clamp 42 is not always fitted as in the embodiment. No need to match.

The U-turn means may be any one that can bend and guide the binding material 50. For example, as shown in FIG. 6, instead of the bending roller and the auxiliary roller, the U-turn means is fixed to the tip of the surrounding guide for bending. A guide 55 may be provided. In FIG. 6, reference numeral 56 is an auxiliary fixing guide provided so as to face the bending fixing guide, and 57 is the bent binding material 5.
0 is a fixed guide for guiding the leading end into the surrounding guide. Further, the surrounding guide is not limited to the above-described embodiment, but may have various cross-sectional shapes such as a triangular gutter cross section or an arc gutter cross section. Also, the binding material 50 for the surrounding guide
By arranging a rotatable roller in a portion in contact with each other or applying a friction reducing material, the binding material 5 in the guide means
It is possible to reduce the friction of 0 and feed the binding material 50 smoothly.

7 and 8 show still another embodiment of the binding device according to the present invention. The device of this embodiment is different from the device of the embodiment shown in FIG. 1 in the mounting position of the U-turn means and the structure of the twisting means. Hereinafter, only these differences will be described in detail. In this embodiment, the U-turn means 60
Is provided on a side end surface 64 of a sliding frame 63 slidably provided on the twist shaft 62 of the twisting means 61 and is bent by a bending roller 65 which is rotationally driven by a motor provided in the sliding frame. , And an auxiliary roller 66 that is provided so as to face the bending roller and that freely rotates. The bending roller 65 is positioned within the movement trajectory of the binding material 50 moving from the surrounding guide 73, and when the binding material comes into contact with the bending roller 65, the bending roller 65 bends and guides the binding material 50 to make a U-turn. In this case, since the bending roller 65 is driven to rotate, the bending roller 65 also cooperates with the auxiliary roller 66 to feed the binding material 50. Therefore, in this embodiment, the U-turn means 60 also serves as an auxiliary feeding means, and both are constituted by a common member.

A fixed guide 6 is provided on the side end surface 64 of the sliding frame 63 to guide the binding material to the bending roller 65.
A fixed guide 68 for making a U-turn of the bundling material 50 and the bent binding material 50 and guiding them to the surrounding guide satisfactorily is properly arranged. The sliding frame 63 is slidably driven along the twist shaft 62 by an actuator 70 such as a solenoid, and the surrounding guide 7 is formed until the formation of the double line is completed.
As shown in Fig. 7, the binding material sent along 3 is located near the tip of the twist shaft so that the binding material smoothly reaches the U-turn means. 7 is moved to a position indicated by a virtual line in FIG. By moving the sliding frame 63 to the position indicated by the imaginary line, the binding material is disengaged from the U-turn means 60 and the fixed guides 67 and 68 provided on the side end surface of the sliding frame, and will be described later. It engages only with the hook 71 of the twisting means.

The twisting means 61 has a hook 71 formed at the tip of a twist shaft 62 which is rotationally driven by a motor 69. As shown in FIG. 8, the binding material 50 is automatically guided so as to straddle the hooks 71 during the process of being formed into two lines via the U-turn means 60, so that the sliding frame body 63 is formed after forming the two lines. By moving to a position indicated by an imaginary line in FIG. 7, the bent portion 51 is engaged with the hook 71.

In FIG. 7, reference numeral 80 denotes a rear end portion shifting lever for the rear end portion shifting means, which can be rotated from the solid line position to the virtual line position by an actuator such as a rotary solenoid as in the above-described embodiment. After the formation of the double line, the bundling member 50 is moved to a position indicated by an imaginary line so that the rear end portion 52 of the binding material 50 is positioned within the rotation locus of the hook 71, and the bent portion side and the rear end portion side of the binding material are moved. Place them close to each other so that they can be twisted together smoothly.

Although the embodiments of the binding device and the binding method of the present invention have been described above, the present invention is not limited to the above embodiments, and various design changes can be made. For example, in the above embodiment, the winding bobbin is held in the case 1, but it is not always necessary to hold the winding bobbin in the case, and the winding bobbin is placed at a position different from the binding device and It may be pulled out. Further, the design of the shape of the case can be changed as appropriate. Also, from the beginning, if the rear end of the binding material is positioned within the rotation path of the hook,
Alternatively, if tension is applied to the binding material so that the rear end portion of the binding material is naturally positioned within the rotation locus of the hook, it is not necessary to provide the binding material rear end portion shifting lever.

The surrounding guide may have any shape as long as it surrounds the article to be bound as a whole, and may have any shape such as a curved or polygonal shape, or a combination of curved and straight lines. Further, the surrounding guide does not necessarily have to be continuous, and may have a cut portion in a part thereof or may be discontinuous such as being formed by a roller row. Further, the binding device of the present invention is not necessarily portable, and can be attached to, for example, a work robot.

The binding device of the present invention is shown in FIG.
As shown in Fig. 9, it is very effective in binding and fixing the reinforcing bars 90 in the rebar work, but the article to be bound is not limited to the reinforcing bars, and as shown in Fig. 9 (b), for example, a bar or Needless to say, the present invention can be applied to any rod-shaped article 91 such as a tube, or any article that can be bound, such as binding the bag mouth of the bag 92 as shown in FIG. 9C.

In these bindings, the twisted portion 53 of the binding material after the binding is projected from the surface of the article to be bound as shown in the drawing, but in order not to disturb it.
It is also possible to automatically bend the twisted portion 53 toward the article to be bound after the binding is completed. As a means for this, for example, in the embodiment shown in FIG.
Is preferably rotated slightly in the direction opposite to the twisting direction in order to easily separate from the bent portion of the binding material after the binding is completed, but the engaging piece that engages the twisting portion 53 on the reverse rotation side of the hook. If the hook is formed to project, the engaging piece acts to kick off the twisted portion 53 when the hook rotates in the reverse direction,
The twisted portion can be bent from the base end.

[0042]

As is apparent from the above description, the present invention has the following special effects. Since a continuous linear binding material can be unwound and automatically bent to form a double wire, it can be bound as compared to the conventional case of winding and binding a single wire.
The strength of the binding material is improved and it can be firmly bound with a particularly strong binding force. Further, the twisting can be advanced until the binding portion of the article to be bound is loosened, and a strong binding can be achieved.

Before twisting the bent portion and the rear end portion to each other, twisting the two wires makes the two wires into a single stranded wire, which improves the strength and prevents loosening after tying. The article can be tightly bound.

Since the binding device of the present invention has a very simple structure as compared with the conventional one, it can be constructed in a small size and a light weight, and since the operation is automatically performed, no skill is required. Therefore, it is possible to easily and surely bind, and it is possible to reduce the binding work and improve the efficiency. In addition, complete automation can be achieved by mounting it on a work robot or the like. By providing the binding material rear end portion moving means, the bent portion side and the rear end portion of the binding material can be reliably twisted together.

[Brief description of drawings]

FIG. 1 is a schematic side view of a binding device according to an embodiment of the present invention with a main body case being broken.

FIG. 2 is a plan view thereof.

FIG. 3 is a schematic side view of the binding device shown in FIG. 1 in a use state in which a main body case is partially broken.

FIG. 4 is a view on arrow AA of FIG.

FIG. 5 is a process explanatory diagram of a binding method.

FIG. 6 is a view corresponding to FIG. 4, showing another embodiment of the U-turn means.

FIG. 7 is a schematic partial side view of the binding device according to another embodiment of the present invention with the main body case broken away.

FIG. 8 is a view as seen from the arrow BB in FIG.

9A and 9B show a binding mode of articles to be bound by the binding device of the present invention, where FIG. 9A is a binding of reinforcing bars, and FIG.
(C) has shown the binding state of the bag mouth of a bag.

[Explanation of symbols]

1 Case 6 Feeding Means 7 Cutting Means 8 Guiding Means 9 Auxiliary Feeding Means 10, 60 U
Turn means 12,80 Bundling material rear end portion shifting means 13,61 Twisting means 25,26,73 Enclosing guide 36,80 Bundling material rear end portion shifting lever 41,62 Twist shaft

Claims (6)

[Claims] 1. A continuous binding material is guided around the article to be bound so as to substantially surround the article to be bound, and is bent at the guide end to be fed while making a U-turn. A two-line forming step of forming two lines around the two-piece, a binding material cutting step of cutting a rear end portion of the binding material formed on the two lines from a continuous linear binding material at an appropriate time, and a folding part of the binding material A method for bundling articles, comprising a twisting step of bundling the articles to be bound by twisting the front end portion and the rear end portion of the other side together. 2. The method for binding an article according to claim 1, further comprising a step of twisting a substantially U-shaped bent portion and / or a rear end portion of the binding material after the double line forming step. 3. The binding material rear end portion shifting step of moving the rear end portion of the cut binding material in a direction in which the substantially U-shaped bent portion is located after the binding material cutting step. Unity method. 4. A feeding means for feeding a continuous linear binding material,
Guide means for guiding the binding material sent out from the feeding means around the article to be bound so as to substantially surround the article to be bound, bending the binding material into a substantially U shape at the tip of the guiding means, and again A U-turn means for forming a double wire by making a U-turn in the guide means, a cutting means for cutting the binding material into a predetermined length, and a twisting means for twisting both ends of the binding material. Binding device. 5. The apparatus for binding articles according to claim 4, wherein auxiliary feeding means for feeding the binding material is provided on the downstream side of the feeding means. 6. The binding device according to claim 4, further comprising a rear end portion moving means for moving the rear end portion of the cut binding material in a direction in which the substantially U-shaped bent portion is located.