JP7445561B2 - Binding body manufacturing method and manufacturing device - Google Patents

Description

The present invention relates to a method and apparatus for manufacturing a bundle in which a plurality of objects are bound together using a binding material.

When shipping long objects such as steel bars and steel pipes from the factory, an automatic bundling device bundles the objects in a predetermined number of units suitable for transportation, in order to prevent the cargo from collapsing during transportation and to facilitate transportation. BACKGROUND ART Packing is performed by binding bundled items with wire (binding material) (see, for example, Patent Document 1). In an automatic binding device, a wire is wound in a loop around the outer periphery of a large number of objects to be bound so that their longitudinal directions are aligned, and a twisting head that grips the intersections of the wires is rotated to twist the intersections. The object to be bound is bound in a bonded state.

Japanese Patent Application Publication No. 2003-160106

By twisting the crossing portions of the wires by rotating the twisting head, a twisted portion where the wires are twisted together is formed, and an end portion of the wire extends by a predetermined length from the twisted portion. The terminal part of the wire extending from the twisting part protrudes toward the outside of the bundle made by binding a plurality of objects with wires, so when the bundle is transported from the automatic binding device, twisting may occur. This poses a problem in that the end portion of the wire extending from the portion gets caught in a conveyance device or the like, thereby impeding conveyance. Additionally, when multiple bundles are stored or shipped together, the end portion of the wire extending from the twisted portion may come into contact with the objects of other bundles and damage the objects. is also pointed out.

The present invention has been proposed in order to suitably solve the above-mentioned problems inherent in the conventional technology. It is an object of the present invention to provide a method and apparatus for manufacturing a bundle that can suppress the above.

In order to overcome the above problems and achieve the intended purpose, a method for manufacturing a bundle according to the invention of claim 1 includes:
A method for manufacturing a bundle in which a plurality of objects to be bundled are bound with a binding material, the method comprising:
A protrusion that separates a twisted portion from the objects to be bound by twisting the intersecting portions of the binding materials wound in a loop around the plurality of objects to be bound by a twisting means. With both end portions of the binding material extending from the ends extending in the longitudinal direction of the object to be bound, which intersects the wrapping direction of the binding material, the both end portions are bent by bending means . Bending it toward the objects to be bound so as to push it into a recess formed between a plurality of objects to be bound and extending along the longitudinal direction of the objects to be bound,
The gist is to form a bundle in which both the end portions extend in the longitudinal direction of the object to be bound with the twisted portion sandwiched therebetween and are pushed into the recess .
According to this, both ends of the binding material extending from the twisted part formed by twisting the intersection of the binding material are located on opposite ends of the object to be bound with the twisted part in between. At the same time, by arranging the twisted portion to be located closer to the object to be bound than the protruding end thereof, the height of the protrusion of both end portions from the object to be bound can be kept low, and due to the two end portions, It is possible to prevent the conveyance of the bundled bodies bound with the binding material from being hindered and the objects to be bound from being damaged. In addition, since both ends of the binding material extending from the twisting part are bent while extending in the longitudinal direction of the object to be bound, it is easy to transport the bundle bound with the binding material in the longitudinal direction. inhibition can be further suppressed.

In order to overcome the above problems and achieve the intended purpose, a method for manufacturing a bundle according to the invention of claim 2 includes:
A method for manufacturing a bundle in which a plurality of objects to be bundled are bound with a binding material, the method comprising:
A protruding end that is separated from the objects to be bound at a twisting portion where the binding materials are twisted together by twisting the intersecting portions of the binding materials wound in a loop around the plurality of objects to be bound by a twisting means. With both end portions of the binding material extending from bending the binding material toward the objects to be bound by the bending means to a position where it can come into contact with the wrapping portions of the binding material wrapped around the plurality of objects to be bound when the material is rotated;
Both end portions extend in the longitudinal direction of the object to be bound with the twisted portion sandwiched therebetween, and contact the wrapping portion when the twisted portion rotates in a direction opposite to the twisting direction. The gist is to form a bundle that is bent to a possible position.
According to this, both ends of the binding material extending from the twisted part formed by twisting the intersection of the binding material are located on opposite ends of the object to be bound with the twisted part in between. At the same time, by arranging the twisted portion to be located closer to the object to be bound than the protruding end thereof, the height of the protrusion of both end portions from the object to be bound can be kept low, and due to the two end portions, It is possible to prevent the conveyance of the bundled bodies bound with the binding material from being hindered and the objects to be bound from being damaged. In addition, since both ends of the binding material extending from the twisting part are bent while extending in the longitudinal direction of the object to be bound, transportation when transporting the bundle bound with the binding material in the longitudinal direction is facilitated. inhibition can be further suppressed.
This application includes the following technical ideas.
The gist is that a bending part of the bending means that moves close to the object to be bound from a protruding side of the twisting part contacts the terminal part to bend the end part so as to approach the object to be bound. do.
According to this, the end portion of the binding material can be bent with a simple configuration.

The invention according to claim 3 is:
The gist is that the terminal portion is bent by the bending means so that the end of the terminal portion faces the outer surface of the object to be bound.
This application includes the following technical ideas.
A shape material of the bending means having a concave bending part in which the bent shape of both the end parts is formed is moved close to the object to be bound from the protruding side of the twisted part and pressed against the end part. The gist is that the terminal portion is bent along the bending shape of the bending portion.
According to this, by using the mold material in which the concave bending part is formed, the end part of the binding material can be appropriately bent so as to follow the shape of the bending part.

The invention according to claim 4 is:
The bending means bends the terminal portion by bringing a bending portion into contact with the terminal portion,
The gist is that the contact surface of the bent portion with the binding material is coated with a wear-resistant coating material having a Shore hardness higher than that of the binding material.
This application includes the following technical ideas.
The rotatable roller of the bending means pressed against the end portion is moved from the projecting side of the twisting portion toward the end of the end portion while approaching the object to be bound, thereby bending the end portion. The main points are as follows.
According to this, by rotating the roller when bending the end portion of the binding material, it is possible to suppress the end portion from being damaged, and it is possible to prevent the strength from being reduced due to the damage.

In order to overcome the above problems and achieve the intended purpose, the bundle manufacturing apparatus according to the invention of claim 5 includes:
An apparatus for manufacturing a bundled body in which a plurality of objects to be bound are bound together with a binding material,
A gripping means is provided for gripping an intersection of the binding material wrapped in a loop around the plurality of objects to be bound, and the intersection is twisted by rotating the gripping means. As a result, both ends of the binding material extending from the protruding end away from the object to be bound at the twisted part where the binding materials are twisted together are aligned in the longitudinal direction of the object to be bound, which intersects the direction in which the binding material is wound. a twisting means for extending ;
Bending means for bending both end portions toward the objects to be bound so as to push them into a recess formed between the plurality of objects to be bound and extending along the longitudinal direction of the objects to be bound. ,
The gist is that the two end portions extend in the longitudinal direction of the object to be bound with the twisted portion interposed therebetween, and form a bundle that is pushed into the recess .
According to this, both ends of the binding material extending from the twisted part formed by twisting the intersection of the binding material are located on opposite ends of the object to be bound with the twisted part in between. At the same time, by arranging the twisted portion to be located closer to the object to be bound than the protruding end thereof, the height of the protrusion of both end portions from the object to be bound can be kept low, and due to the two end portions, It is possible to prevent the conveyance of the bundled bodies bound with the binding material from being hindered and the objects to be bound from being damaged.

In order to overcome the above problems and achieve the intended purpose, the apparatus for manufacturing a bundle according to the invention of claim 6 includes:
An apparatus for manufacturing a bundled body in which a plurality of objects to be bound are bound together with a binding material,
A gripping means is provided for gripping an intersection of the binding material wrapped in a loop around the plurality of objects to be bound, and the intersection is twisted by rotating the gripping means. As a result, both ends of the binding material extending from the protruding end away from the object to be bound at the twisted part where the binding materials are twisted together are aligned in the longitudinal direction of the object to be bound, which intersects the direction in which the binding material is wound. a twisting means for extending;
The two end portions are attached to the objects to be bound to a position where they can come into contact with the wrapping portions of the binding material that are wound around a plurality of objects to be bound when the twisting portion is rotated in a direction opposite to the twisting direction. a bending means for bending toward the
Both end portions extend in the longitudinal direction of the object to be bound with the twisted portion sandwiched therebetween, and contact the wrapping portion when the twisted portion rotates in a direction opposite to the twisting direction. The gist is that the bundle is configured to be bent to a possible position.
According to this, both ends of the binding material extending from the twisted part formed by twisting the intersection of the binding material are located on opposite ends of the object to be bound with the twisted part in between. At the same time, by arranging the twisted portion to be located closer to the object to be bound than the protruding end thereof, the height of the protrusion of both end portions from the object to be bound can be kept low, and due to the two end portions, It is possible to prevent the conveyance of the bundled bodies bound with the binding material from being hindered and the objects to be bound from being damaged.
This application includes the following technical ideas.
The bending means includes a bending part that can come into contact with the end part, and a driving means that moves the bending part toward and away from the end part, and the bending part that has come into contact with the end part is twisted by the driving means. The gist of the present invention is that the end portion is moved close to the object to be bound from the protruding side of the bending portion and bent so as to be close to the object to be bound.
According to this, the end portion of the binding material can be bent with a simple configuration.

The invention according to claim 7 is:
The bending means includes a bending part that comes into contact with the end part and bends the end part, and the contact surface of the bending part with the binding material is made of a wear-resistant covering material having a Shore hardness higher than that of the binding material. The gist is that it is covered.
This application includes the following technical ideas.
The bending means includes a mold material having a concave bending portion in which the bent shapes of both the end portions are formed, and a driving means for moving the mold material toward and away from the end portions, and the driving means moves the mold material toward and away from the end portions. The present invention is characterized in that the end portion is bent along the bending shape of the bending portion by moving close to the object to be bound from the protruding side of the twisting portion and pressing against the end portion.
According to this, the end portion of the binding material can be appropriately bent so as to follow the shape of the concave bending portion formed in the mold material.

This application includes the following technical ideas.
The bending means includes a rotatable roller and a driving means for moving the roller toward and away from the end portion and in an extending direction of the end portion, and the roller that is in contact with the end portion is moved by the driving means. The gist is that the terminal portion is bent by moving toward the end of the terminal portion while moving close to the object to be bound from the protruding side of the twisting portion.
According to this, since the roller rotates when bending the end portion of the binding material, damage to the end portion can be suppressed, and strength can be prevented from decreasing due to damage.

This application includes the following technical ideas.
The twisting means twists the intersection by 3/3 until both end portions extending from the twisting portion extend in the longitudinal direction of the object to be bound, which intersects the winding direction of the binding material. It is configured to twist more than 4 times,
The gist is that the bending means is configured to bend both end portions while extending in the longitudinal direction.
According to this, both ends of the binding material extending from the twisting part can be bent while extending in the longitudinal direction of the object to be bound, so that the bundled body bound with the binding material can be bent in the longitudinal direction. It is possible to further suppress the transportation from being hindered during transportation.

According to the method and apparatus for manufacturing a bundle according to the present invention, when transporting a bundle bound with a binding material, the transport of the bundle is inhibited by the end portion extending from the twisted part of the binding material. It is possible to suppress the Furthermore, when stacking the bundles, it is possible to prevent the objects to be bound of other bundles from being damaged by the end portions extending from the twisted portions.

FIG. 1 is a schematic front view showing main parts of a bundle manufacturing apparatus according to an example. FIG. 2 is an enlarged front view of main parts of the bundle manufacturing apparatus. FIG. 3 is a schematic view of the relationship between the wire intersection and the clamping jaw, viewed from the direction of arrow A in FIG. 2, with (a) showing the state before the wire intersection is gripped by the clamping jaw; , (b) shows the clamping jaws gripping the intersection of the wires. FIG. 3 is a schematic plan view showing the relationship between the bending portion and the end extending from the intersection of the wire gripped by the clamping jaws, in which (a) shows the state before twisting the wire, and (b) , shows a state in which the extending direction of the end portion is changed by 90 degrees by twisting the intersection of the wires. (a) is a schematic view of the relationship between the wire and the bending part before twisting the intersection part, viewed from the front side, and (b) is a schematic diagram showing the main part with the end of the wire bent by the bending part. It is a schematic diagram enlarged and seen from the front side. FIG. 2 is a schematic diagram showing the relationship between the end extending from the twisted part of the wire and the bent part, in which (a) shows the state before the end is bent, and (b) shows the state with the end bent. show. It is an explanatory view showing a bundled body bound with wires. It is a schematic explanatory drawing which shows the bending means of a 1st other Example. It is a schematic explanatory drawing which shows the bending means of a 2nd alternative Example. It is a schematic explanatory drawing which shows the bending means of a 3rd alternative Example.

Next, a manufacturing method and a manufacturing apparatus for a bundle according to the present invention will be described below with reference to preferred embodiments and the accompanying drawings.

As shown in FIGS. 1 and 2, the bundle manufacturing apparatus (bundle manufacturing apparatus) according to the embodiment has metal wires (bundle The wire 10 is provided with a guide means 12 for guiding the wire 10, a supply means 14 for feeding the wire 10 into the guide means 12, and a positioning means 16 for holding the tip (end) 10c of the wire 10. The bundle manufacturing apparatus feeds the wire 10 into the guide means 12 using the supply means 14, thereby forming a group of objects to be bound (a plurality of objects to be bound) stacked in a predetermined shape (circular, rectangular, etc.) and inserted into the guide means 12. The wire 10 is wound around the outer periphery of the object h) in a loop shape, and the positioning means 16 holds the tip end 10c of the wire 10 that intersects with the wire 10 on the feeding side. The bundle manufacturing apparatus also includes a tightening means (not shown) that pulls the wire 10 in a pullback direction opposite to the feeding direction to the guide means 12 and draws it to the outer periphery of the group of objects to be bound, and The cutting means 20 that cuts at the side holds the intersection 10a of the wire 10 wound around the outer periphery of the group of objects to be bound, twists the intersection 10a, and creates a twisted section 10b where the wires are twisted together. and twisting means 22 for forming. Then, the bundle manufacturing apparatus pulls the wire 10 in the pullback direction using the tightening means to attract it to the outer periphery of the group of objects to be bundled, with the tip end 10c of the wire 10 being held by the positioning means 16, and then By twisting 10a with the twisting means 22, the wires closer to the object group than the intersection 10a are twisted together, and the wires 10 are configured to bind the object group in a tight state. Further, the bundle manufacturing apparatus connects the tip end 10c and the terminal end (terminal part) 10d of the wire 10 extending outward from the twisted part 10b formed by twisting the wire 10 to It is provided with bending means 24 for bending towards the bundle h). In the embodiment, the bending means 24 bends the tip end 10c and the terminal end 10d of the wire 10, with the ends e and e facing toward the end side (longitudinal end side) of the object h, to be bound. It is configured to bend toward a group of objects (objects to be bound h).

As shown in FIGS. 1 and 2, the guide means 12, the supply means 14, the positioning means 16, the cutting means 20, the twisting means 22, and the bending means 24 are provided on a base tiltably supported on one side of a pedestal 26. It is arranged on a stand 28 and configured as one unit via the base 28. Note that the guiding means 12, the supplying means 14, the positioning means 16, the cutting means 20, the twisting means 22, and the bending means 24 are each independent units, and the respective means 12, 14, 16, 20, 22, and 24 can be individually attached and detached. Further, the base 28 is connected to a hydraulic cylinder 30 as a driving means disposed on the pedestal 26, and is configured to be able to tilt the base 28 in accordance with the supply position of the group of objects to be bound with respect to the guide means 12. be done. The tightening means is provided between a supply source (not shown) of the wires 10 and the supply means 14, and is used not only to pull the wires 10 in the pulling direction but also as a means for pulling out the wires 10 used for binding from the supply source. Function.

As shown in FIG. 1, the guide means 12 mainly includes a guide frame 34 formed in an annular shape. A group of objects is inserted. The guide frame 34 is constructed by connecting two disc-shaped plates 36, 36 with a predetermined distance apart in the axial direction (the direction in which the object h to be bound is inserted into the guide frame 34). A guide groove 34b is defined through which the wire 10 can pass. Furthermore, as shown in FIG. 2, an insertion opening 34a is provided between the two plates 36, 36, and a plurality of insertion holes 34a are provided between the two plates 36, 36 to freely rotate around the axial axis of the guide frame 34. Guide rollers (not shown) are supported in parallel in the circumferential direction in an area excluding the area where the insertion opening 34a is formed. The wire 10 sent out by the supply means 14 and fed into the guide groove 34b through the insertion port 34a is configured to be guided in a loop shape by a plurality of guide rollers.

A first guide portion 38 is provided outside the insertion opening 34a of the guide frame 34 (on the inside of the guide frame 34) for guiding the wire 10 sent out by the supply means 14 to the guide groove 34b through the insertion opening 34a. , a second guide part 40 that guides the tip end 10c of the wire 10 that surrounds the outer periphery of the group of objects to be bundled that is guided by the guide roller along the guide groove 34b and inserted into the guide frame 34; It is located in The first guide part 38 and the second guide part 40 are supported so as to be able to swing toward and away from each other, and are each connected to an opening/closing cylinder (not shown) as a driving means. They are configured to be displaced between a covered state (see solid line in FIG. 2) in which they are close to each other and cover the insertion port 34a, and a retracted state in which they are separated from each other and the insertion port 34a is open. In the guide means 12, the wire 10 is fed into the guide groove 34b through the first guide part 38 and the insertion hole 34a, and the wire 10 is fed into the guide groove 34b through the insertion hole 34a and the second guide part 40 on the outside of the guide frame 34. The distal end portion 10c of the wire 10 protruding from the wire 10 intersects with the tip end portion 10c of the wire 10 (see FIG. 5(a)).

As shown in FIG. 2, the supply means 14 includes a main pinch roller 42, a sub-pinch roller 44 disposed opposite to the main pinch roller 42, and a drive motor (not shown) as a drive means for rotationally driving the main pinch roller 42. It consists of zu). The supply means 14 is configured to sandwich the wire 10 between a main pinch roller 42 and a sub-pinch roller 44, and feed the wire 10 toward the guide means 12 by rotating the main pinch roller 42 with a drive motor. be done.

The supply means 14 operates in a feeding state in which the main pinch roller 42 is rotated by the driving of the drive motor and the subordinate pinch roller 44 is allowed to rotate as the wire 10 moves, and in a feeding state in which the main pinch roller 42 and the subordinate pinch roller 44 are rotated. It is configured to be switchable between a stopped state in which movement of the wire 10 is restricted and a free state in which free rotation of the main pinch roller 42 and the slave pinch roller 44 is allowed as the wire 10 moves. Here, the supply means 14 is in the feeding state when the wire 10 is fed into the guide means 12, is in the free state when the wire 10 is pulled back by the tightening means, and is in the free state when the wire 10 is pulled out from the supply source by the tightening means. It can be switched to a stopped state.

As shown in FIG. 2, the positioning means 16 is provided on the first guide section 38, and when the first guide section 38 is covered, the tip end 10c of the wire 10 is fed into the guide frame 34 of the guide means 12. A positioning part 38a is located on the path protruding from the insertion opening 34a, and a positioning part 38a is arranged so as to be able to approach and separate from the positioning part 38a, and the tip part 10c of the wire 10 is held between the positioning part 38a and the positioning part 38a. The holding head 56 is provided with a holding cylinder 58 (see FIG. 5(a)) as a driving means for moving the holding head 56 forward and backward relative to the positioning portion 38a. The positioning means 16 abuts the tip of the wire 10 against the positioning part 38a to restrict the movement of the wire 10 in the feeding direction, and also moves the tip 10c of the wire 10 whose position has been regulated to the positioning part 38a and the clamping part of the clamping head 56. 56a to prevent the wire 10 from moving in the pulling direction.

The cutting means 20 is arranged between the guiding means 12 and the feeding means 14. As shown in FIG. 2, the cutting means 20 includes a cylindrical movable blade 64 that is positioned on the path of the wire 10 from the supply means 14 to the guide means 12 and allows the wire 10 to pass therethrough, and a cylindrical movable blade 64 in which the wire 10 passes through. It is composed of a fixed blade 66 provided in contact with the lead-out side of the wire 10 and a cutting cylinder (not shown) as a driving means for moving the movable blade 64. The cutting means 20 moves the movable blade 64 through which the wire 10 is inserted so as to retreat from the path connecting the supply means 14 and the guide means 12 using the cutting cylinder, thereby cutting a gap between the movable blade 64 and the fixed blade 66. It is configured to sever the wire 10.

As shown in FIG. 2, the twisting means 22 includes a pair of clamping jaws 70, 70 as gripping means for gripping (holding) the intersection 10a of the wire 10, and an opening/closing mechanism for opening and closing the clamping jaws 70, 70. means 72 and a torsion motor (not shown) as a drive means for rotating the clamping jaws 70, 70. The opening/closing means 72 changes the pair of clamping jaws 70, 70 into the open state shown in FIG. 3(a) and the closed state shown in FIG. 3(b) in which they can grip the intersection 10a. The opening/closing means 72 is disposed on a holding member 76 on which the clamping jaws 70, 70 are supported, and is configured to be able to move vertically together with the clamping jaws 70, 70, as will be described later.

Here, before the intersecting part 10a is twisted, the tip end 10c and the terminal end 10d of the wire 10 wound around the outer periphery of the group of objects to be bound are as shown in FIGS. 4(a) and 5(a). , extend in opposite directions across the intersection 10a in the direction along the direction in which the wires 10 are wound around the group of objects to be bound. In this state, the twisting means 22 rotates the clamping jaws 70, 70, which are gripping the intersection 10a of the wire 10, by 3/4 rotation or more by the twisting motor, so that the clamping jaws 70, 70, which are gripping the intersection 10a of the wire 10, are turned away from the twisting portion 10b of the wire 10. The ends e, e of the tip end 10c and the end portion 10d extending in the direction of It is set to rotate until it assumes a posture extending substantially along the direction (direction that intersects the winding direction of the wire 10). The amount of rotation by which the intersecting portion 10a is twisted by the twisting means 22 is preferably 3/4 rotation or more, and more preferably 1 rotation or more, and 1/4 or 3/4 rotation. . Further, in the embodiment, the center of rotation of the intersecting portion 10a of the wire 10 twisted by the clamping jaws 70, 70 is located on the radially outer side of one object h on the outer circumferential side of the group of objects to be bound. Set.

The torsion motor and the holding member 76 are connected to each other so as to transmit rotation while allowing the clamping jaws 70, 70 and the opening/closing means 72 to move in the vertical direction (in the direction of approaching and separating from the object h to be bound). . Further, the clamping jaws 70, 70 and the opening/closing means 72 move close to the group of objects to be bound while gripping the intersection portion 10a with the clamping jaws 70, 70, and then the clamping jaws 70, 70 are gripped. By releasing , the wire 10 is configured to automatically return to the initial position (a position where the intersection 10a of the wire 10 can be gripped before starting the twisting process) by an elastic member (not shown).

As shown in FIG. 4, the clamping head 56 has a pair of bends extending in the direction in which the wire 10 is pulled back with respect to the guide means 12 from the clamping part 56a that clamps the tip end 10c of the wire 10 between the clamping head 56 and the positioning part 38a. The parts 60, 60 are provided spaced apart in the longitudinal direction of the object to be bound h inserted through the guide frame 34 so that the parts 60, 60 can come into contact with the tip part 10c and the terminal part 10d extending from the twisted part 10b. It will be done. In the embodiment, the bent parts 60, 60 are set so as to abut on the end sides of the ends 10c, 10d, where the ends e, e face the ends in the longitudinal direction of the object h to be bound (FIG. 4(b), (See Figure 6(b)). The clamping jaws 70, 70 are arranged to be movable in the vertical direction between both the bending parts 60, 60, and the clamping jaws 70, 70 and the bending parts 60, 60 are arranged so that they can move relative to each other without interfering with each other. It is constructed so that it can be moved freely. The clamping cylinder 58 clamps the tip 10c of the wire 10 between a retracted position in which the clamping head 56 is separated from the covered first guide part 38 and a positioning part 38a of the first guide part 38. It is configured to move between a clamping position and a bending position closer to the group of objects to be bound than the clamping position. Then, in the retracted state in which the first guide part 38 and the second guide part 40 are retracted from the insertion opening 34a, the clamp head 56 is moved toward the bending position by the clamp cylinder 58, thereby completing the twisting. The bent portions 60, 60 are pressed against the tip portion 10c and the terminal end portion 10d extending from the protruding end E of the twisted portion 10b of the wire 10, which is separated from the group of objects to be bound, and the both ends 10c, 10d are connected to the object h to be bound. (See FIGS. 5(b) and 6(b)). Furthermore, by moving the clamping head 56 to the bending position, the leading end 10c and the terminal end 10d in a posture where the ends e, e face the longitudinal end side of the object h to be bound are changed to the protruding end E of the twisted part 10b. It can be bent to a position closer to the object h to be bound. It is preferable that the tip portion 10c and the terminal portion 10d are bent to a position where at least the ends e and e are closer to the object to be bound than the protruding end E. It is more preferable that it be bent to a position close to the bundle h. In the embodiment, the bending parts 60, 60 and the clamping cylinder 58 constitute the bending means 24 for bending the tip end 10c and the terminal end 10d of the wire 10.

The surfaces (contact surfaces with the wire 10) of the clamping part 56a and the bent parts 60, 60 in the clamping head 56 are coated with a coating material 62 having high wear resistance. As this covering material 62, a material whose Shore hardness measured according to JIS Z 2246 is higher than that of the wire 10 and Hs75 or higher is preferably used, and the material is preferably used for the covering material 62. Constructed to improve wear resistance. Further, the thickness of the covering material 62 is preferably set to 1.5 mm or more at the clamping portion 56a, and 0.5 mm or more at the bent portions 60, 60. In the embodiment, the covering material 62 is provided only in the portion (widthwise center) of the clamping portion 56a that clamps the tip end 10c of the wire 10.

[Effect of the embodiment]
Next, the operation of the bundle manufacturing apparatus of the embodiment configured as described above will be explained in relation to the manufacturing method.

In the bundle manufacturing apparatus, a group of objects to be bound, in which a plurality of objects h to be bound are stacked in a predetermined shape, is fed into the guide frame 34 of the guide means 12 along its longitudinal direction by a conveying means. In the bundle manufacturing apparatus, the base 28 is tilted downward by the hydraulic cylinder 30 so that the tip of the object to be bound h, which is fed into the guide frame 34 by the conveyance means, does not collide with the guide frame 34. do. In this state, the group of objects to be bound transported by the transport means is inserted through the guide frame 34 without colliding with the guide frame 34. When the leading ends of the objects h to be bound pass through the guide frame 34, the base 28 is tilted upward by the hydraulic cylinder 30, as shown in FIG. Positioned in

In the bundle manufacturing apparatus, when the scheduled wire binding position of the group of objects to be bound inserted through the guide frame 34 is positioned inside the guide frame 34 and stopped, the wire 10 is fed into the guide frame 34 by the supply means 14. A feeding process is performed. In the feeding process, the drive motor of the supply means 14 is driven, and as the main pinch roller 42 rotates, the wire 10 held between the secondary pinch roller 44 is moved to the first guide portion 38 and the insertion opening 34a of the guide frame 34. It is sent along the guide groove 34b via the guide groove 34b. In the feeding process, the wire 10 is guided into the guide groove 34b of the guide frame 34 and surrounds the outer periphery of the group of objects in a loop, so that the tip of the wire 10 passes through the insertion opening 34a of the guide frame 34 and the second guide part 40. It protrudes and intersects with the wire 10 on the sending side and ends when it hits the positioning part 38a.

The wire 10 fed into the guide groove 34b of the guide frame 34 is guided in a loop while contacting the plurality of guide rollers, and the guide rollers rotate when the wire 10 comes into contact with the guide rollers. Guide the wire 10. That is, the contact resistance between the wire 10 and the guide roller is small, and the wire 10 is prevented from being rubbed and damaged.

The bundle manufacturing apparatus performs a positioning step of positioning the tip of the wire 10 by sandwiching the tip 10c of the wire 10 between the clamping part 56a of the clamping head 56 operated by the clamping cylinder 58 and the positioning part 38a. After this, a tightening process is performed in which the wire 10 is pulled in the pulling direction. In the tightening step, the wire 10 is pulled in the pulling direction by the tightening means while the main pinch roller 42 and the secondary pinch roller 44 in the supply means 14 are allowed to freely rotate. Since the tip end 10c of the wire 10 is held by the positioning means 16, the loop-shaped wire 10 is drawn so as to come into contact with the outer periphery of the group of objects to be bound. Then, the bundle manufacturing apparatus performs the tightening process under the condition that the detection means (not shown) that detects the pullback resistance of the wires 10 that are in contact with the outer periphery of the group of objects to be tied detects a value that brings the wires 10 into a required tightened state. finish.

Next, by changing the pair of clamping jaws 70, 70 in the open state shown in FIG. 3(a) to the closed state by the opening/closing means 72, the wires 10 are The portion 10a is held by a pair of clamping jaws 70,70. Thereafter, by operating the movable blade 64 by the cutting cylinder of the cutting means 20, the feeding side of the wire 10 is cut by the movable blade 64 and the fixed blade 66, and the terminal end is cut by a predetermined length from the intersection 10a to the feeding side. 10d is extended (see FIG. 5(a)). Here, in the cutting process, since the intersection part 10a of the wire 10 is gripped by the clamping jaws 70, 70, the wire 10 tightened around the outer periphery of the group of objects in the tightening process does not loosen, and the tightened state is maintained. You can move on to the cutting and post-cut twisting processes while maintaining the shape.

After releasing the holding of the tip end 10c of the wire 10 by the positioning means 16 by driving the opening/closing cylinder and separating the first guide part 38 and the second guide part 40 from each other to a retracted state, the clamp By rotating the clamping jaws 70, 70 with a twisting motor, the intersection 10a of the wire 10 gripped by the clamping jaws 70, 70 is twisted. By twisting the intersection portion 10a of the wire 10, the portion of the wire 10 extending from the gripping portion of the clamping jaws 70 to the outer periphery of the group of objects to be bound is twisted together (see FIG. 6(a)), A group of objects to be bound is bound by wires 10. Since the clamping jaws 70, 70 and the opening/closing means 72 are configured to allow vertical movement while transmitting rotation from the torsion motor, the wire 10 is twisted in the twisting process. As a result, the distance from the gripping portion of the wire 10 by the clamping jaws 70, 70 to the outer periphery of the group of objects to be bound is shortened, so that the clamping jaws 70, 70 and the opening/closing means 72 are brought closer to the group of objects to be bound. I am drawn to it. That is, the wires 10 can be twisted together to a position close to the outer periphery of the group of objects to be bound while the clamping jaws 70, 70 are gripping the intersection 10a of the wires 10, and the group of objects to be bound can be securely bound. , the protrusion dimension of the twisted portion 10b formed by the rotation of the clamping jaws 70, 70 from the group of objects to be bound can be reduced.

The clamping jaws 70, 70 are rotated by 3/4 rotation or more, and as shown in FIG. 4(b), a tip portion 10c and a The torsion motor is stopped when the terminal end portion 10d is in a position where its ends e and e face the end side of the object to be bound h and extend substantially along the longitudinal direction of the object to be bound h. At the same time, the grip of the intersection portion 10a by the clamping jaws 70, 70 is released. Then, by moving the clamping head 56 from the clamping position to the bending position by the clamping cylinder 58, the bending parts 60, 60 provided on the clamping head 56 move from the protruding side of the twisted part 10b to the group of objects to be bound. , and is pressed against the leading end 10c and the terminal end 10d extending from the twisted part 10b and located on opposite ends of the object h with the twisted part 10b in between. As shown in FIG. 6(b), the tip end portion 10c and the terminal end portion 10d are bent so as to be close to the outer periphery of the group of objects to be bound, and are positioned closer to the object to be bound than the projecting end E. Specifically, the end sides of the distal end portion 10c and the terminal end portion 10d are pushed by the bending portions 60, 60, so that the base side of the distal end portion 10c and the terminal end portion 10d, which is close to the protruding end E of the twisted portion 10b, is covered. The tip 10c and the end 10d are bent toward the object h, and the end sides of the end 10c and the end 10d are pressed against the object h by the bending parts 60, 60, so that the end 10c and the end 10d are bent at the end. The portions near e and e are bent so as to curve toward the opposite side from the base side. That is, both end portions 10c and 10d are curved at two points in the extending direction, and the portions from the curved portions of the portions close to the ends e and e to the ends e and e are the parts of the object h to be bound. It is formed in a shape substantially along the longitudinal direction. Note that the clamping jaws 70, 70 that have released their grip on the intersection 10a of the wire 10 automatically return to the initial position by an elastic member (not shown).

When the bending means 24 completes the bending step of bending the tip end 10c and the terminal end 10d of the wire 10, the holding cylinder 58 moves the holding head 56 to the retracted position. Then, when the group of objects to be bound is conveyed by the conveying means and the next scheduled wire binding position is positioned inside the guide frame 34 and stopped, the above-mentioned feeding process, positioning process, tightening process, cutting process, and twisting process are carried out. A matching process and a bending process are performed, and the group of objects to be bound is bound with the wire 10. In this way, the bundle H (see FIG. 7) in which the group of objects to be bundled is bound with wire at a plurality of locations spaced apart in the longitudinal direction is carried out from the bundle manufacturing apparatus by the conveyance means.

In the bundle manufacturing apparatus of the embodiment, the tip portion 10c and the terminal portion 10d of the wire 10 extending from the twisted portion 10b formed by twisting the intersection portion 10a of the wire 10 sandwich the twisted portion 10b. It is possible to form a bundle H that is located on opposite ends of the objects h to be bound and closer to the objects to be bound than the protruding end E. That is, the tip end 10c and the terminal end 10d of the wire 10 are positioned closer to the outer periphery of the group of objects to be bound than the protruding end E of the twisted portion 10b, with the ends e and e facing toward the end of the object to be bound h. Since the bending means 24 bends the tip portion 10c and the end portion 10d to the desired position, the protrusion height of the tip portion 10c and the end portion 10d from the group of objects to be bound (objects to be bound h) can be kept low, and the tip portion 10c and the end portion 10d are As a result, transportation of the wire-bound bundle H can be prevented from being hindered. In addition, when a plurality of bundles H are accumulated for storage or shipping, the leading end 10c and the terminal end 10d extending from the twisted part 10b may come into contact with the objects h of other bundles H. It is possible to prevent damage to the object h to be bound. Further, since the bending parts 60, 60 of the bending means 24 are pressed against the tip end 10c and the terminal end 10d of the wire 10, the structure for bending the both ends 10c, 10d can be simplified. Note that by pushing the end sides of the tip end 10c and the end end 10d to be pressed and bent by the bending parts 60, 60 until they come into contact with the object h to be bound, the ends e, e of the both ends 10c, 10d can be bent into the twisted part 10b. Both end portions 10c and 10d can be reliably bent to a position closer to the outer periphery of the group of objects to be bound than the protruding end E thereof.

In the bundle manufacturing apparatus of the embodiment, the tip portion 10c and the terminal portion 10d, which extend from the twisted portion 10b of the wire 10 and are located on opposite ends of the object h to be bound with the twisted portion 10b in between, are covered. Since the bundle h is bent so as to extend along the longitudinal direction, when transporting the bundle H in the longitudinal direction, the transport is prevented from being obstructed by the leading end 10c and the terminal end 10d. This can be further suppressed. Furthermore, since the surfaces of the clamping part 56a and the bent parts 60, 60 of the clamping head 56 are coated with a coating material 62 having excellent wear resistance, contact with the wire 10 can cause the clamping head 56 (the clamping part 56a and the bent parts 60, 60) can be prevented from wearing out in a short period of time, and the service life can be extended. In addition, in the bundle manufacturing apparatus of the embodiment, the bending parts 60, 60 for bending the tip end 10c and the terminal end 10d of the wire 10 are provided on the clamping head 56 that positions the tip 10c of the wire 10, and the bending parts 60, 60 are bent by the clamping cylinder 58. Since the parts 60, 60 are actuated to bend the distal end part 10c and the terminal end part 10d, the number of parts can be reduced.

Here, each end e of the tip end 10c and the terminal end 10d of the wire 10 may become sharp when cut by the movable blade 64 and the fixed blade 66, and when the bundle H is accumulated, The objects to be bound h of the adjacent bundles H are likely to be damaged by the ends e and e of both ends 10c and 10d. However, in the bundle manufacturing apparatus of the embodiment, the tip end 10c and the terminal end 10d of the wire 10 are bent so that the ends e, e are closer to the object h than the protruding end E of the twisted part 10b. When stacking the bundles H, the ends e, e of both ends 10c, 10d are less likely to come into contact with the objects h of other bundles H, and damage to the objects h can be suppressed. In the bundle manufacturing apparatus of the embodiment, the process sequence is such that after forming the twisted portion 10b, the tip portion 10c and the terminal portion 10d extending from the twisted portion 10b are bent. Contrary to the embodiment, if the process order is to form the twisted part 10b after bending the tip end 10c and the terminal end 10d of the wire 10, the bent ends 10c and 10d are bent during the formation of the twisted part 10b. The wire 10 can only be bent to a position where it does not come into contact with the winding portion of the wire 10 that is wound around the group of objects to be bound. On the other hand, if the process order of the embodiment is used, the twisted part 10b can be formed without worrying about the ends 10c and 10d coming into contact with the winding part of the wire 10 during the formation of the twisted part 10b. Later, the ends 10c and 10d can be bent to a position closer to the group of objects to be bound. Therefore, when bending the ends 10c, 10d, if the bent ends 10c, 10d rotate as the twisted part 10b returns to the direction opposite to the twisting direction and loosens, the winding part of the wire 10 It can be bent to a position where it can come into contact with the In other words, if the ends 10c and 10d are bent to a position where they can come into contact with the wrapping portion, when the bundles H are transported or stacked, the twisted portions may be bent by the force applied from the group of objects to be bound, etc. When the twisted part 10b returns in the opposite direction to the twisting direction and loosens, the tip part 10c and the terminal part 10d, which rotate as the twisted part 10b loosens, come into contact with the winding part of the wire 10, and their rotation is restricted. This can prevent the binding from unraveling. Moreover, the bundle manufacturing apparatus of the embodiment can individually attach and detach the guide means 12, the supply means 14, the positioning means 16, the cutting means 20, the twisting means 22, and the bending means 24 with respect to the base 28. Therefore, in the event that any of the means 12, 14, 16, 20, 22, 24 fails, recovery can be achieved by simply replacing the failed means, thereby shortening the loss time associated with recovery. obtain. Furthermore, if spare parts for each means 12, 14, 16, 20, 22, and 24 are prepared, loss time can be further reduced.

(About another example)
8 to 10 show the main parts of a bundle manufacturing apparatus according to another embodiment, and since the structure of the bending means in this another embodiment is different from that in the embodiment, the bending means will be explained. In addition, the same code|symbol shall be attached to the same member already mentioned in an Example.

A bending means 86 according to a first alternative embodiment shown in FIG. and a first driving means (not shown) such as a hydraulic cylinder for moving between a bending preparation position where the terminal end 10d can be inserted and a retracted position spaced laterally from the distal end 10c and the terminal end 10d; A second driving means (not shown) such as a hydraulic cylinder is provided to move the shaped member 88 in the position toward and away from the tip end 10c and the end end 10d. The bending parts 87, 87 consist of a bending part 87 corresponding to the tip end 10c of the wire 10 and a bending part 87 corresponding to the terminal end 10d. An accommodation recess 89 capable of accommodating the twisted portion 10b of the wire 10 is provided between them. The bottom forming surfaces 87a, 87a which are pressed against the corresponding tip 10c and terminal end 10d in both bending sections 87, 87 form the tip 10c and the terminal end 10d, and the entirety thereof is the protruding end E of the twisted section 10b. A bent shape in which the ends e and e of the twisted portions 10c and 10d are bent to a position closer to the object h than the protruding end E of the twisted portion 10b (for example, , the end portions 10c and 10d are formed in the same shape as that bent by the bending means 24 of the embodiment. Further, the width of the bending portions 87, 87 is set to be slightly larger than the diameter of the wire 10, and is configured to suppress displacement of the tip portion 10c and the terminal portion 10d in the width direction. Note that by placing the mold member 88 in the retracted position, the clamping jaws 70, 70 and the mold member 88 are prevented from interfering with each other.

In the bending means 86 of the first alternative embodiment, after the twisting means 22 has completed twisting the intersection 10a of the wire 10, the clamping jaws 70, 70 are moved away from the intersection 10a of the wire 10. , the shape member 88 in the retracted position is moved to the bending preparation position by the first driving means (see FIG. 8(a)). Next, by moving the mold material 88 close to the object h from the protruding side of the twisted portion 10b by the second driving means, the leading end portion 10c and the terminal end portion 10d are moved to the corresponding bending portion of the mold material 88. 87, 87, and the tip portion 10c and the end portion 10d are pressed by the forming surfaces 87a, 87a of the bending portions 87, 87, and the end sides of the tip portion 10c and the end portion 10d are bent by the shape material 88 to bind the object h. By being pressed against this, the tip end portion 10c and the end portion 10d are bent along the molding surfaces 87a, 87a (see FIG. 8(b)).

According to the bending means 86 of the first alternative embodiment, the following effects are achieved in addition to the effects provided by the embodiments described above. That is, since the bending means 86 of the first alternative embodiment presses and bends the forming surfaces 87a, 87a of the concave bending portions 87, 87 formed in the shape member 88, against the tip end 10c and the terminal end 10d of the wire 10, Both end portions 10c and 10d are appropriately bent so as to be close to the object h to be bound, while displacement in the width direction (radial direction) is restricted. Therefore, the ends e and e face the longitudinal end side of the object to be bound, and the leading end 10c and the terminal end 10d extending along the longitudinal direction of the object to be bound are directed in a direction intersecting the longitudinal direction. Can be bent without large displacement. As a result, the tip end portion 10c and the terminal end portion 10d extend close to the group of objects to be bound along the longitudinal direction of the objects to be bound, and when the wire-bound bundle H is conveyed in the longitudinal direction. , it is possible to further suppress the transportation from being hindered by the leading end portion 10c and the terminal end portion 10d.

A bending means 90 according to a second alternative embodiment shown in FIG. 9 includes rollers 92, 92 rotatably supported by a pair of moving members 91, 91, and a roller 92, A driving means (not shown) such as a hydraulic cylinder that moves 92 toward and away from the distal end 10c and the distal end 10d and in the direction in which the distal end 10c and the distal end 10d extend. Note that the pair of rollers 92, 92 move integrally in the direction of approaching and separating, and move toward and away from each other in the direction of extension. That is, when the roller 92 corresponding to the distal end portion 10c moves from the projecting end E side of the twisted portion 10b toward the end e of the distal end portion 10c, the roller 92 corresponding to the terminal end portion 10d moves toward the twisted portion. It moves from the protruding end E side of 10b toward the end e of the terminal end 10d (see FIG. 9(b)). The driving means may be constituted by means for independently moving the rollers 92, 92 in the approaching/separating direction and the extending direction, or a means for moving the rollers 92, 92 in the approaching/separating direction by the driving means. Accordingly, it is possible to employ a configuration in which the rollers 92, 92 are moved in the extending direction by a cam mechanism. The rollers 92, 92 at the retracted position away from the tip end 10c and the end end 10d are spaced apart so as not to interfere with the clamping jaws 70, 70 (see FIG. 9(a)).

In the bending means 90 of the second alternative embodiment, after the twisting means 22 has completed twisting the intersection 10a of the wire 10, the clamping jaws 70, 70 are moved away from the intersection 10a of the wire 10. As shown in FIG. 9(b), a pair of rollers 92, 92, which are spaced apart from the tip end 10c and the end end 10d, are moved close to the object h from the protruding side of the twisting part 10b by a driving means. The respective ends 10c and 10d move away from each other toward the ends e and e. As a result, the leading end 10c and the terminal end 10d are respectively bent by the corresponding rollers 92, 92 so as to be closer to the outer periphery of the group of objects to be bound than the protruding end E of the twisted part 10b. Specifically, by moving the rollers 92, 92, which are in contact with the tip portion 10c and the terminal end portion 10d approximately in the middle in the extending direction, close to the object h, the tip portion 10c and the terminal end portion 10d are twisted. The base side close to the protruding end E of the curved portion 10b is bent so as to curve toward the object to be bound h, and then the end sides of the tip end portion 10c and the terminal end portion 10d are pressed against the object to be bound by the rollers 92, 92. By moving the rollers 92, 92 toward the ends e, e, the distal end portion 10c and the terminal end portion 10d are bent such that the portions close to the ends e, e are curved to the opposite side from the base side. . That is, in the bending means 90 of the second alternative embodiment, the tip end 10c and the end end 10d are formed in the same shape as in the embodiment.

According to the bending means 90 of the second alternative embodiment, in addition to the effects of the above embodiment, the following effects are achieved. That is, in the bending means 90 of the second alternative embodiment, the rollers 92, 92 rotate freely when bending the tip end 10c and the terminal end 10d of the wire 10, so that the tip end 10c and the terminal end 10d are not damaged. can be suppressed. Therefore, it is possible to prevent the strength from decreasing due to damage to the wire 10, and also to prevent the wire 10 from breaking from the damaged portion.

A bending means 93 according to a third alternative embodiment shown in FIG. A driving means (not shown) such as a hydraulic cylinder that moves toward and away from 10d is provided. The distance between the pair of bending members 94, 94 is such that when the bending members 94, 94 are moved close to the object h, the end surfaces of the bending members 94, 94 facing the object h come into contact with the end sides of the respective ends 10c, 10d, respectively. At the same time, before the bending members 94, 94 come into contact with the object to be bound h, the ends e, e of each end portion 10c, 10d separate from the end surface, and the side surfaces of the bending members 94, 94 (both bending members 94, 94 opposing surfaces). The ends e, e of both end portions 10c, 10d bent by the bending members 94, 94 are configured to face the outer peripheral side of the object h to be bound. Note that the bending members 94, 94 in the retracted position apart from the tip end 10c and the end end 10d are spaced apart so as not to interfere with the clamping jaws 70, 70.

In the bending means 93 of the third alternative embodiment, after the twisting means 22 has completed twisting the intersection 10a of the wire 10, the clamping jaws 70, 70 are moved away from the intersection 10a of the wire 10. , a pair of bending members 94, 94 (see FIG. 10(a)), which are spaced apart from the tip end 10c and the terminal end 10d, are moved close to the object h from the protruding side of the twisting part 10b by the driving means. The leading end 10c and the terminal end 10d are pushed toward the object h by the pair of bending members 94, 94, so that the ends e, e of each end 10c, 10d are close to the object h. By being pushed so as to do so, the base side of the twisted portion 10b that is close to the protruding end E is bent toward the object h to be bound. When the bending members 94, 94 are further moved closer to the object to be bound h, the ends e, e of the respective ends 10c, 10d are separated from the end faces of the bending members 94, 94, and their positions are regulated by the side surfaces, and the tip end 10c The terminal end portion 10d is bent such that the ends e and e of the end portions 10c and 10d face the outer circumferential side of the object h to be bound (see FIG. 10(b)).

In the bending means 93 of the third alternative embodiment, similarly to the previous embodiment, the tip end 10c and the terminal end 10d of the wire 10 are moved to a position closer to the outer periphery of the group of objects to be bound than the protruding end E of the twisted part 10b. Therefore, it is possible to suppress the transportation of the wire-bound bundle H from being hindered due to the tip end 10c and the end end 10d. In addition, since the tip end 10c and the terminal end 10d of the wire 10 are bent until the ends e and e face the outer circumferential side of the bound object h, when the bound objects H are stacked, the bound objects h of the other bound objects H are bent. The ends e, e of both end portions 10c, 10d are less likely to come into contact with each other, and damage to the object h to be bound can be suppressed.

[Example of change]
The present application is not limited to the configuration of the embodiment described above, and other configurations can be adopted as appropriate.
1. In the embodiment and the second and third alternative embodiments, the tip and end portions of the wire are bent by the bending means with the clamping jaws releasing the grip at the intersection of the wire. It is possible to adopt a configuration in which the bending means bends the leading end and the terminal end of the wire while the jaws grip the intersection of the wire.
2. In the embodiment, the bending part of the bending means was configured to be bent by contacting the end sides of the tip part and the terminal part, but the tip part and the terminal part were arranged closer to the object to be bound than the protruding end of the twisting part. As long as the structure allows bending to a certain position, the bent portion may be brought into contact with the middle of each end in the extending direction.
3. In the embodiment, the end side portions of the tip and end portions are pressed against the objects to be bound by the bending portion of the bending means, but the end portions of the tip and end portions are pressed against the objects to be bound by the bending portion. The bending process may be completed beforehand. That is, each end portion may be bent at one location on the base side. In the first and second alternative embodiments as well, the bending process may be completed before the end portions of the leading end and the trailing end are pressed against the object to be bound using a mold or a roller.
4. In the bundle manufacturing device, the various driving means for driving each means can be a hydraulic cylinder, a pneumatic cylinder, a hydropneumatic cylinder, or an electric motor, but all the driving means are electric motors. This is preferable because it can improve maintainability and safety.
5. In the embodiment, the positioning means for positioning the tip of the wire and the bending means for bending the tip and the terminal end of the wire are partially used. However, the positioning means and the bending means may be independent and separate means. It can be composed of That is, a configuration can be adopted in which a clamping head having only a clamping part is operated by a clamping cylinder, and a bending head having a pair of bending parts is operated by a bending cylinder.
6. In the bundle manufacturing device, the external shape of the group of objects to be bound with wires can be various shapes such as circular, triangular, and square. However, shapes with corners such as triangles and squares , it is preferable to adopt a configuration in which the crossing portions of the wires are positioned at positions corresponding to the corner portions and twisted together. That is, by twisting the wires at the corner of the outer shape of the group of objects to be bound, the wires on the sides that sandwich the corner can be suitably drawn and twisted together, and the group of objects to be bound can be tightly bound. can do.

7. In the first alternative example, a mold material was used in which two bending parts were formed for bending the tip end and the terminal end of the wire. Accordingly, it is possible to adopt a configuration in which the tip portion and the terminal portion are bent. Further, for example, instead of the bent portion provided on the clamping head in the embodiment, a configuration may be adopted in which the clamping head is provided with a shape member formed with a bent portion extending in the extending direction of the leading end or the terminal end.
8. In a first alternative embodiment, the profile of the bending means can be configured to be detachable and replaceable. In a structure in which the mold material can be replaced, if multiple types of mold materials with different shapes of molding surfaces are prepared, the tip and end portions can be easily bent into any shape according to the user's specifications.
9. In the second alternative embodiment, the distal end and the terminal end are bent by the roller, but by pushing down the twisted section, the distal end and the terminal end are in a position where the end faces the longitudinal end of the object to be bound. It is possible to adopt a configuration in which the material is bent so as to be close to the object to be bound. For example, a roller is rotatably supported by a moving member that moves in a direction intersecting the direction in which the twisted portion protrudes from the object to be bound, and the roller is moved by a driving means in a direction intersecting the longitudinal direction of the object to be bound. All you have to do is push down the twisted part.
10. In the third alternative embodiment, the bending members were configured to move only in the direction toward and away from each end (object to be bound), but the pair of bending members were further configured to move toward and away from each other by a driving means. It is possible to adopt a configuration in which a pair of bending members sandwiching both ends thereof are moved close to each other so as to restrict the position with the side surfaces, and both ends are bent until each end faces the outer periphery of the object to be bound. Further, it is possible to employ a configuration in which a roller rotatably supported by a bending member is applied to the end portion and bent.
11. As the rollers supported by the moving member (second alternative embodiment) and the bending member (third alternative embodiment), grooved rollers capable of regulating displacement in the radial direction of the end portions can be employed.
12. In the embodiment and other embodiments, the center of rotation of the twisting means at the intersection of the wires is positioned at a position corresponding to the outside in the radial direction of one object to be bound, and the intersection is twisted. , a configuration is adopted in which the center of rotation of the intersection of the wires is positioned between circumferentially adjacent objects to be bound on the outer circumferential side of the group of objects to be bound, and the intersection is rotated to form a twisted portion. be able to. In a configuration in which the center of rotation of the wire intersection is positioned between circumferentially adjacent objects to be bound, both ends extending along the longitudinal direction of the objects to be bound from the twisted portion are It can be bent so as to be pushed into a recess formed between objects and extending in the longitudinal direction of the objects to be bound, and by pushing both ends, the twisted portion itself deforms toward the group of objects to be bound, and the twisted portion The protrusion dimension of can be made smaller. In addition, when adopting a configuration in which both ends are pushed into the recess, this can be done by making the bending portion that bends both ends into a shape that allows both ends to be pushed into the recess without interfering with adjacent objects to be bound.
13. In this embodiment or another embodiment, for example, a rotating member of the twisting means may be provided with a bending means, and both ends of the binding material may be bent toward the object to be bound while twisting the intersection of the wires. Can be adopted.
14. In the embodiment and other embodiments, the intersection of the wires is twisted (rotated) until the tip and end of the wire are aligned in the longitudinal direction of the object to be bound, and then both ends are attached to the object to be bound. However, the twisting of the intersection by the twisting means is stopped with the tip and end of the wire intersecting the longitudinal direction of the object to be bound, and both ends are bent toward the object to be bound. It is possible to adopt a configuration in which the ends are bent so as to be close to each other and then twisted by a twisting means or another means until the both ends are in a posture along the longitudinal direction of the object to be bound.
15. The amount of rotation by which the intersecting portion is twisted by the twisting means can be less than 3/4 rotation, for example, by making the amount of rotation more than 1/2 rotation, the amount of rotation formed by twisting can be reduced. Even if the twisted part returns in the opposite direction to the twisting direction due to the elasticity of the wire when the grip of the twisting means on the part is released, the bound state of the bound object can be maintained without the twisted part coming undone. Therefore, the amount of rotation can be set to 1/2 rotation or more. In addition, in order to reduce the possibility of the ends of the wires getting caught in a conveyance device or the like when conveying the bundled body in the longitudinal direction, it is necessary to It is most preferable to take a posture along the direction. However, if the tip and end portions are tilted so as to intersect at an angle smaller than the angle perpendicular to the longitudinal direction of the object to be bound, the tip and end portions will be This is because the extension length of the leading end and end end from the twisted part in the direction perpendicular to the longitudinal direction can be made shorter than when the belt is in an orthogonal position, reducing the chance of it getting caught on the conveying device, etc. , the tip portion and the terminal portion may be in the tilted posture. Note that when the grip of the twisting means on the twisted part is released, if the twisted part returns in the opposite direction to the twisting direction due to the elasticity of the wire, the tip and end of the wire will not touch the object to be bound. The amount of rotation may be set in consideration of the return of the twisting portion so that the position is along the longitudinal direction or the tilted position.
16. In the embodiments and other embodiments, metal wires (wire rods) were used as the binding material for binding objects, but wires whose surfaces are coated with a synthetic resin covering material may also be used. can.

10 Wire (binding material)
10a Intersection part 10b Twisted part 10c Tip part (terminal part)
10d Termination part (terminal part)
22 Twisting means 24 Bending means 58 Clamping cylinder (driving means)
60 Bending part 70 Clamping jaw (gripping means)
86 Bending means 87 Bending forming part 88 Shape material 90 Bending means 92 Roller 93 Bending means E Projecting end of twisted part e Ends of tip and terminal parts H Binding body h Object to be bound

Claims (7)

A method for manufacturing a bundle in which a plurality of objects (h) are bound together with a binding material (10), the method comprising:
The intersecting portion (10a) of the binding material (10) wound in a loop around the plurality of objects to be bound (h) is twisted by the twisting means (22), so that the binding materials are twisted together. Wrap the binding material (10) around both ends (10c, 10d) of the binding material (10) extending from the protruding end (E) of the twisted part (10b) that is spaced from the object to be bound (h). With the object to be bound (h) extending in the longitudinal direction intersecting the direction, the two end portions (10c, 10d) are bent by the bending means (24, 86, 90 , 93 ). Bend it toward the object to be bound (h) so as to push it into a recess formed between the objects to be bound (h, h) and extending along the longitudinal direction of the object to be bound (h),
A binding body (H) in which both the terminal parts (10c, 10d) extend in the longitudinal direction of the object to be bound (h) with the twisted part (10b) in between, and are pushed into the recessed part . A method for manufacturing a bundle, characterized by forming a bundle. A method for manufacturing a bundle in which a plurality of objects (h) are bound together with a binding material (10), the method comprising:
The intersecting portion (10a) of the binding material (10) wound in a loop around the plurality of objects to be bound (h) is twisted by the twisting means (22), so that the binding materials are twisted together. Wrap the binding material (10) around both ends (10c, 10d) of the binding material (10) extending from the protruding end (E) of the twisted part (10b) that is spaced from the object to be bound (h). When the twisted part (10b) rotates in the opposite direction to the twisting direction while the object to be bound (h) extends in the longitudinal direction that intersects with the direction of the binding material (10), Bend it toward the objects (h) by the bending means (24, 86, 90, 93) to a position where it can come into contact with the wrapping part wrapped around the plural objects (h),
Both end portions (10c, 10d) extend in the longitudinal direction of the object (h) with the twisted portion (10b) in between , and the twisted portion (10b) is arranged in a direction different from the twisting direction. A method for producing a bundle, comprising forming a bundle (H) that is bent to a position where it can come into contact with the winding portion when rotated in the opposite direction . The bending means (93) bends the terminal portions (10c, 10d) so that the ends (e, e) of the terminal portions (10c, 10d) face the outer surface of the object to be bound (h). Item 2. A method for producing a bundle according to item 1 or 2 . The bending means (24) bends the end portions (10c, 10d) by bringing the bending portions (60, 60) into contact with the end portions (10c, 10d),
Any one of claims 1 to 3, wherein the contact surface of the bent portion (60, 60) with the binding material (10) is coated with a wear-resistant coating material having a Shore hardness higher than that of the binding material (10). A method for producing a bundle according to item 1 . An apparatus for producing a bundled body in which a plurality of objects to be bound (h) are bound together with a binding material (10),
A gripping means (70, 70) is provided for gripping an intersection (10a) of the binding material (10) wound in a loop around the plurality of objects to be bound (h), the gripping means (70, 70) ) by rotating the intersection part (10a) , and by twisting the intersection part (10a), the twisted part (10b) where the binding materials are twisted together is separated from the object to be bound (h). Both ends (10c, 10d) of the binding material (10) extending from the protruding end (E) extend in the longitudinal direction of the object to be bound (h) that intersects with the wrapping direction of the binding material (10). a twisting means (22) for causing the
The both end portions (10c, 10d ) are pushed into a recess formed between the plurality of objects to be bound (h, h) and extending along the longitudinal direction of the objects to be bound (h). A bending means (24 , 86, 90, 93 ) for bending toward the object to be bound (h),
A binding body (H) in which both the terminal parts (10c, 10d) extend in the longitudinal direction of the object to be bound (h) with the twisted part (10b) in between, and are pushed into the recessed part . An apparatus for manufacturing a bundle, characterized in that it is configured to form a bundle. An apparatus for producing a bundled body in which a plurality of objects to be bound (h) are bound together with a binding material (10),
A gripping means (70, 70) is provided for gripping an intersection (10a) of the binding material (10) wound in a loop around the plurality of objects to be bound (h), the gripping means (70, 70) ) by rotating the intersection part (10a) , and by twisting the intersection part (10a), the twisted part (10b) where the binding materials are twisted together is separated from the object to be bound (h). Both ends (10c, 10d) of the binding material (10) extending from the protruding end (E) extend in the longitudinal direction of the object to be bound (h) that intersects with the wrapping direction of the binding material (10). a twisting means (22) for causing the
When the twisted portion ( 10b) rotates in a direction opposite to the twisting direction, the both end portions (10c, 10d) are wound around the plurality of objects (h) in the binding material (10). bending means (24 , 86, 90, 93 ) for bending toward the object (h) to be bound to a position where it can come into contact with the wrapping portion ;
Both end portions (10c, 10d) extend in the longitudinal direction of the object (h) with the twisted portion (10b) in between, and the twisted portion (10b) is arranged in a direction different from the twisting direction. 1. A device for manufacturing a bundle, characterized in that the device is configured to form a bundle (H) that is bent to a position where it can come into contact with the winding portion when rotated in the opposite direction . The bending means (24) includes a bending part (60, 60) that comes into contact with the terminal part (10c, 10d) and bends the terminal part (10c, 10d), 7. The apparatus for manufacturing a bundle according to claim 5, wherein the contact surface with the binding material (10) is coated with a wear-resistant coating material having a higher Shore hardness than the binding material (10) .

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