JP2022060996A - Binding facility and wire feeding mechanism - Google Patents

Abstract

To provide a binding facility capable of feeding wire by an appropriate method.SOLUTION: A binding facility 100A comprises: a reinforcement binding machine 1A that binds a reinforcement S by two wires W; a reel storage part that 21 that stores two reels 20 on which one wire W is wound; and a wire feeding mechanism 2A for pulling out the respective wires W from the two reels 20 stored in the reel storage part 21 and feeding them to the reinforcement binding machine 1A.SELECTED DRAWING: Figure 1B

Description

The present invention relates to a binding device for binding an object to be bound such as a reinforcing bar with a wire, and a wire feeding mechanism for feeding the wire.

Reinforcing bars are used in concrete structures to improve their strength, and they are tied with wires so that the reinforcing bars do not shift from their predetermined positions when placing concrete.

Conventionally, a binding machine called a reinforcing bar binding machine used by a worker who winds a wire around two or more reinforcing bars and twists the wire wound around the reinforcing bars to bind the two or more reinforcing bars with a wire. Has been proposed (see, for example, Patent Document 1).

Further, a technique applied to equipment used by installing a reinforcing bar binding machine has been proposed (see, for example, Patent Document 2).

Japanese Unexamined Patent Publication No. 8-34405 Japanese Unexamined Patent Publication No. 2013-35052

There are various types of reinforcing bar binding methods using a reinforcing bar binding machine, but in equipment and wire feeding mechanisms, it was not possible to feed wires in an appropriate manner depending on the binding method using the reinforcing bar binding machine.

The present invention has been made to solve such a problem, and an object of the present invention is to provide a bundling facility capable of feeding a wire by an appropriate method and a wire feeding mechanism for feeding the wire.

In order to solve the above-mentioned problems, the present invention includes a binding mechanism for binding an object to be bound with a plurality of wires, a reel accommodating portion for accommodating a plurality of reels wound with one wire, and a reel accommodating portion. It is a binding facility equipped with a wire feeding mechanism that sends wires from a plurality of housed reels to the binding mechanism.

In the present invention, in the binding equipment, a plurality of wires are sent to the binding mechanism, and the object to be bound is bound by the plurality of wires.

Further, in the present invention, there is a binding mechanism for binding the binding object with a wire, and a second direction in which the wire sent in the first direction and wound around the binding object by the binding mechanism is opposite to the first direction. A wire pull-back mechanism that feeds the wire in the direction of the above and winds it around the object to be bound, a reel accommodating portion in which the reel around which the wire is wound is accommodated, and a wire feeding mechanism that sends the wire from the reel accommodated in the reel accommodating portion to the binding mechanism. The wire feeding mechanism is a binding facility including a wire pulling mechanism for pulling a wire from the reel and a wire pulling mechanism between the pulling back mechanism and the reel.

In the present invention, in the binding equipment, the wire is sent to the binding mechanism, wound around the binding object, and the binding object is bound by the wire.

Further, the present invention includes a wire pull-out mechanism for pulling out the wire from the reel on which the wire is wound, and the wire pull-out mechanism is a wire for pulling out the wire from the reel according to the excess wire in the feeding path of the wire drawn out from the reel. It is a feed mechanism.

In the present invention, the wire is pulled out from the reel according to the surplus amount of the wire generated in the feeding path of the wire drawn from the reel.

In the present invention, in the binding equipment, a plurality of wires can be sent to the binding mechanism, and the binding object can be bound by the plurality of wires.

Further, in the present invention, in the binding equipment, the wire can be sent to the binding mechanism, wound around the binding object, and the binding object can be bound by the wire.

Further, in the present invention, the wire can be pulled out from the reel according to the surplus amount of the wire generated in the feeding path of the wire drawn from the reel.

It is a side view which shows an example of the bundling equipment of 1st Embodiment. It is a perspective view which shows an example of the bundling equipment of 1st Embodiment. It is a side view of the main part which shows an example of the bundling equipment of 1st Embodiment. It is a main part plan sectional view which shows an example of the bundling equipment of 1st Embodiment. It is a side view of the main part which shows an example of the bundling equipment of 1st Embodiment. It is a side view which shows an example of the reinforcing bar binding machine of 1st Embodiment. It is a perspective view which shows an example of a wire feed part. It is sectional drawing which shows an example of a binding part. It is sectional drawing which shows an example of a binding part. It is a block diagram which shows an example of the control function of a bundling equipment. It is a flowchart which shows an example of the operation which binds a reinforcing bar with a reinforcing bar binding machine in a binding facility. It is an operation explanatory diagram which shows an example of the operation which binds a reinforcing bar with a reinforcing bar binding machine in a binding facility. It is an operation explanatory diagram which shows an example of the operation which binds a reinforcing bar with a reinforcing bar binding machine in a binding facility. It is a flowchart which shows an example of the operation of feeding a wire by a wire feeding device. It is operation explanatory drawing which shows an example of the operation of feeding a wire by a wire feeding device. It is operation explanatory drawing which shows an example of the operation of feeding a wire by a wire feeding device. It is operation explanatory drawing which shows an example of the operation of feeding a wire by a wire feeding device. It is operation explanatory drawing which shows an example of the operation of feeding a wire by a wire feeding device. It is operation explanatory drawing which shows an example of the operation of feeding a wire by a wire feeding device. It is a perspective view which shows an example of the bundling equipment of 2nd Embodiment. It is a side view of the main part which shows an example of the bundling equipment of 2nd Embodiment. It is operation explanatory drawing which shows an example of the operation of feeding a wire by a wire feeding device. It is operation explanatory drawing which shows an example of the operation of feeding a wire by a wire feeding device. It is operation explanatory drawing which shows an example of the operation of feeding a wire by a wire feeding device. It is operation explanatory drawing which shows an example of the operation of feeding a wire by a wire feeding device. It is operation explanatory drawing which shows an example of the operation of feeding a wire by a wire feeding device. It is a side view which shows an example of the bundling equipment of 3rd Embodiment. It is a perspective view which shows an example of the bundling equipment of 3rd Embodiment. It is a side view of the main part which shows an example of the bundling equipment of 3rd Embodiment. It is a flowchart which shows an example of the operation of feeding a wire by a wire feeding device. It is operation explanatory drawing which shows an example of the operation of feeding a wire by a wire feeding device. It is operation explanatory drawing which shows an example of the operation of feeding a wire by a wire feeding device. It is operation explanatory drawing which shows an example of the operation of feeding a wire by a wire feeding device. It is operation explanatory drawing which shows an example of the operation of feeding a wire by a wire feeding device. It is operation explanatory drawing which shows an example of the operation of feeding a wire by a wire feeding device. It is operation explanatory drawing which shows an example of the operation of feeding a wire by a wire feeding device. It is a side view of the main part which shows an example of the bundling equipment of 4th Embodiment. It is operation explanatory drawing which shows an example of the operation of feeding a wire by a wire feeding device. It is operation explanatory drawing which shows an example of the operation of feeding a wire by a wire feeding device. It is operation explanatory drawing which shows an example of the operation of feeding a wire by a wire feeding device. It is operation explanatory drawing which shows an example of the operation of feeding a wire by a wire feeding device. It is operation explanatory drawing which shows an example of the operation of feeding a wire by a wire feeding device. It is operation explanatory drawing which shows an example of the operation of feeding a wire by a wire feeding device. It is a side view of the main part which shows an example of the bundling equipment of 5th Embodiment. It is operation explanatory drawing which shows an example of the operation of feeding a wire by a wire feeding device. It is operation explanatory drawing which shows an example of the operation of feeding a wire by a wire feeding device. It is operation explanatory drawing which shows an example of the operation of feeding a wire by a wire feeding device. It is operation explanatory drawing which shows an example of the operation of feeding a wire by a wire feeding device. It is operation explanatory drawing which shows an example of the operation of feeding a wire by a wire feeding device. It is operation explanatory drawing which shows an example of the operation of feeding a wire by a wire feeding device. It is operation explanatory drawing which shows an example of the operation of feeding a wire by a wire feeding device. It is a side view which shows an example of the bundling equipment of 6th Embodiment. It is a perspective view which shows an example of the bundling equipment of 6th Embodiment. It is operation explanatory drawing which shows an example of the operation of feeding a wire by a wire feeding device. It is operation explanatory drawing which shows an example of the operation of feeding a wire by a wire feeding device. It is operation explanatory drawing which shows an example of the operation of feeding a wire by a wire feeding device. It is operation explanatory drawing which shows an example of the operation of feeding a wire by a wire feeding device. It is operation explanatory drawing which shows an example of the operation of feeding a wire by a wire feeding device. It is a block diagram which shows an example of the control function of a bundling equipment. It is a flowchart which shows an example of the operation of feeding a wire by a wire feeding device. It is a perspective view which shows the modification of the binding equipment of each embodiment. It is a perspective view which shows the other modification of the bundling equipment of each embodiment. It is a perspective view which shows the other modification of the bundling equipment of each embodiment. It is a perspective view which shows the other modification of the bundling equipment of each embodiment. It is a perspective view which shows the further modification of the bundling equipment of each embodiment. It is a side view of the binding equipment which shows the modification of the wire feed mechanism of this embodiment. It is a top view of the binding equipment which shows the modification of the wire feed mechanism of this embodiment. It is a top view of the main part of the bundling equipment which shows the modification of the wire feed mechanism of this embodiment. It is a side view of the binding equipment which shows the other modification of the wire feed mechanism of this embodiment. It is a top view of the binding equipment which shows the other modification of the wire feed mechanism of this embodiment. It is a top view of the main part of the bundling equipment which shows the other modification of the wire feed mechanism of this embodiment. It is a side view of the binding equipment which shows the other modification of the wire feed mechanism of this embodiment. It is a side view of the binding equipment which shows the other modification of the wire feed mechanism of this embodiment. It is a top view of the main part of the bundling equipment which shows the other modification of the wire feed mechanism of this embodiment. It is a top view of the binding equipment which shows the further modification of the wire feed mechanism of this embodiment. It is a top view of the main part of the bundling equipment which shows the further modification of the wire feed mechanism of this embodiment. It is a top view of the main part of the bundling equipment which shows the further modification of the wire feed mechanism of this embodiment. It is a top view of the main part of the bundling equipment which shows the further modification of the wire feed mechanism of this embodiment.

Hereinafter, embodiments of the bundling equipment and the wire feeding mechanism for feeding wires of the present invention will be described with reference to the drawings.

<Structure example of the binding equipment of the first embodiment>
1A is a side view showing an example of the binding equipment of the first embodiment, FIG. 1B is a perspective view showing an example of the binding equipment of the first embodiment, and FIG. 1C is a first embodiment. 1D is a side view of the main part showing an example of the binding equipment, FIG. 1D is a plan sectional view of the main part showing an example of the binding equipment of the first embodiment, and FIG. 1E is an example of the binding equipment of the first embodiment. It is a side view of the main part which shows.

The binding equipment 100A of the first embodiment includes a reinforcing bar binding machine 1A that binds the reinforcing bar S, which is a binding object, with a wire W, and a wire feeding mechanism 2A that sends the wire W to the reinforcing bar binding machine 1A. The reinforcing bar binding machine 1A is attached to the elevating mechanism 111A and supported by the base portion 112A in order to be able to move (elevate) in the vertical direction, which is a direction intersecting the arrangement surface SF of the reinforcing bar S.

FIG. 2 is a side view showing an example of the reinforcing bar binding machine according to the first embodiment. The reinforcing bar binding machine 1A is an example of a binding mechanism, in which a wire W is sent in the positive direction indicated by an arrow F, wound around two intersecting reinforcing bars S, and a wire W wound around the reinforcing bars S is drawn by an arrow. After sending in the opposite direction indicated by R and winding it around the reinforcing bar S, the wire W is twisted and the reinforcing bar S is bound by the wire W.

In order to realize the above-mentioned function, the reinforcing bar binding machine 1A includes a wire feeding unit 3A that sends the wire W in the forward direction and the reverse direction, and a wire guide 4A that guides the wire W sent to the wire feeding unit 3A. Further, the reinforcing bar binding machine 1A has a curl forming portion 5A constituting a path for winding the wire W sent by the wire feeding portion 3A around the reinforcing bar S, and a cutting portion 6A for cutting the wire W wound around the reinforcing bar S. Be prepared. Further, the reinforcing bar binding machine 1A includes a binding portion 7A for twisting the wire W wound around the reinforcing bar S, and a driving portion 8A for driving the binding portion 7A.

The wire feed unit 3A includes a pair of feed gears 30 (first feed gear 30L, second feed gear 30R) that sandwich and feed one or a plurality of parallel wires W. In the wire feed unit 3A, the rotation operation of the feed motor, which will be described later, is transmitted to rotate the feed gear 30. As a result, the wire feeding unit 3A feeds the wire W sandwiched between the pair of feed gears 30 along the extending direction of the wire W. In a configuration in which a plurality of wires W, for example, two wires W are sent, the two wires W are sent in parallel.

The wire guide 4A is provided at a predetermined position on the upstream side of the wire feeding portion 3A with respect to the feeding direction in which the wire W is fed in the positive direction. In the configuration in which the two wires W are fed, the wire guide 4A regulates the radial orientation of the two wires W, arranges the two wires W that have entered in parallel, and makes a pair of feed gears 30 (first). Guide between the feed gear 30L and the second feed gear 30R).

The wire guide 4A has a shape such that the opening on the downstream side with respect to the feeding direction of the wire W fed in the positive direction restricts the radial direction of the wire W. On the other hand, the opening on the upstream side with respect to the feeding direction of the wire W sent in the positive direction has a larger opening area than the opening on the downstream side. For example, the wire guide 4A has a tapered opening in which the opening area on the introduction side of the wire W sent from the wire feeding mechanism 2A shown in FIGS. 1A to 1C is maximized and the opening area is gradually reduced from there. It is composed. As a result, even if the height or direction of the reinforcing bar binding machine 1A changes, the wire W fed by the wire feeding mechanism 2A can be guided between the pair of feed gears 30.

The curl forming portion 5A includes a curl guide 50 that gives a curl to the wire W sent by the wire feeding portion 3A, and a guide guide 51 that guides the wire W that has been curled by the curl guide 50 to the binding portion 7A. In the reinforcing bar binding machine 1A, the feeding path of the wire W sent by the wire feeding portion 3A is regulated by the curl forming portion 5A, so that the locus of the wire W becomes a loop Ru as shown by the broken line in FIG. 2, and the wire W becomes It is wound around the reinforcing bar S.

The curl forming portion 5A includes guide members 53a and 53b that guide the wire W sent in the positive direction and give a winding habit to the wire W. The guide member 53a is provided on the introduction portion side of the wire W fed by the wire feed portion 3A in the curl guide 50, and is arranged inside the loop Ru formed by the wire W in the radial direction. The guide member 53b is provided on the discharge portion side of the wire W fed by the wire feed portion 3A in the curl guide 50, and is arranged outside the radial direction of the loop Ru formed by the wire W.

The curl forming portion 5A includes a guide member moving mechanism 54A for retracting the guide member 53a. After the wire W is wound around the reinforcing bar S, the guide member moving mechanism 54A retracts the guide member 53a in conjunction with the operation of the binding portion 7A.

The cutting portion 6A includes a fixed blade portion 60, a movable blade portion 61 that cuts the wire W in cooperation with the fixed blade portion 60, and a transmission mechanism 62 that transmits the operation of the binding portion 7A to the movable blade portion 61. The cutting portion 6A cuts the wire W by the rotational operation of the movable blade portion 61 with the fixed blade portion 60 as the fulcrum axis. The transmission mechanism 62 transmits the operation of the binding portion 7A to the movable blade portion 61 via the moving member 83, rotates the movable blade portion 61 in conjunction with the operation of the binding portion 7A, and cuts the wire W.

The binding portion 7A includes a wire locking body 70 to which the wire W is locked. The detailed configuration of the binding portion 7A will be described later. The drive unit 8A includes a motor 80 and a speed reducer 81 that decelerates and amplifies torque.

The reinforcing bar binding machine 1A includes a main body portion 10A and a handle portion 11A, and a battery 15A is detachably attached to the handle portion 11A when applying a form that the operator holds and uses in his / her hand.

FIG. 3A is a perspective view showing an example of the wire feeding unit, and next, the configuration of the wire feeding unit 3A will be described with reference to each figure.

The first feed gear 30L constituting one of the pair of feed gears 30 includes a tooth portion 31L for transmitting a driving force. The tooth portion 31L has a shape constituting the spur gear in this example, and is formed on the entire circumference of the outer circumference of the first feed gear 30L. Further, the first feed gear 30L includes a groove portion 32L into which the wire W is inserted. In this example, the groove portion 32L is formed of a recess having a substantially V-shaped cross section, and is formed on the entire circumference of the outer circumference of the first feed gear 30L along the circumferential direction.

The second feed gear 30R constituting the other of the pair of feed gears 30 includes a tooth portion 31R for transmitting a driving force. The tooth portion 31R has a shape constituting the spur gear in this example, and is formed on the entire circumference of the outer circumference of the second feed gear 30R. Further, the second feed gear 30R includes a groove portion 32R into which the wire W is inserted. In this example, the groove portion 32R is formed of a recess having a substantially V-shaped cross section, and is formed along the entire circumference of the outer circumference of the second feed gear 30R along the circumferential direction.

In the wire feed portion 3A, the groove portion 32L of the first feed gear 30L and the groove portion 32R of the second feed gear 30R are opposed to each other, and the first feed gear 30L and the second feed gear 30R are used as the feed path of the wire W. It is provided by sandwiching.

The wire feed portion 3A has the tooth portions 31L and the second of the first feed gear 30L in a state where the wire W is sandwiched between the groove portion 32L of the first feed gear 30L and the groove portion 32R of the second feed gear 30R. The tooth portions 31R of the feed gear 30R mesh with each other. As a result, the driving force due to rotation is transmitted between the first feed gear 30L and the second feed gear 30R.

The wire feed unit 3A uses one of the first feed gear 30L and the second feed gear 30R, in this example, the feed motor 33 for driving the first feed gear 30L, and the first feed for the driving force of the feed motor 33. A driving force transmission mechanism 34 for transmitting to the gear 30L is provided.

The driving force transmission mechanism 34 includes a small gear 33a attached to the shaft of the feed motor 33 and a large gear 33b that meshes with the small gear 33a. Further, the driving force transmission mechanism 34 includes a small feed gear 34a in which the driving force is transmitted from the large gear 33b and meshes with the first feed gear 30L. The small gear 33a, the large gear 33b, and the small feed gear 34a are each composed of spur gears.

In the first feed gear 30L, the rotational operation of the feed motor 33 is transmitted via the driving force transmission mechanism 34 to rotate. In the second feed gear 30R, the rotational operation of the first feed gear 30L is transmitted by the meshing between the tooth portion 31L and the tooth portion 31R, and the second feed gear 30R rotates in accordance with the first feed gear 30L.

As a result, the wire feeding unit 3A feeds the wire W sandwiched between the first feed gear 30L and the second feed gear 30R along the extending direction of the wire W. In a configuration in which two wires W are fed, a frictional force generated between the groove 32L of the first feed gear 30L and one wire W, and between the groove 32R of the second feed gear 30R and the other wire W. Due to the frictional force generated and the frictional force generated between one wire W and the other wire W, the two wires W are sent in parallel.

The wire feed unit 3A switches the rotation direction of the first feed gear 30L and the second feed gear 30R by switching the forward and reverse of the rotation direction of the feed motor 33, and switches the forward and reverse of the feed direction of the wire W. Be done.

Since the wire feed portion 3A sandwiches the wire W between the first feed gear 30L and the second feed gear 30R, the first feed gear 30L and the second feed gear 30R are pressed toward each other. It has a configuration. That is, the wire feed portion 3A sandwiches the wire W between the first feed gear 30L and the second feed gear 30R, and the wire is sandwiched between the first feed gear 30L and the second feed gear 30R. In order to load W, the first feed gear 30L and the second feed gear 30R are configured to be displaceable in a direction in which they are separated from each other. In this example, the driving force of the feed motor 33 is received from the first feed gear 30L, and the second feed gear 30R to which the driving force of the feed motor 33 is not directly transmitted is displaced with respect to the first feed gear 30L.

Therefore, the wire feed unit 3A includes a first displacement member 36 that displaces the second feed gear 30R in the direction of approaching and separating from the first feed gear 30L. It also includes a second displacement member 37 that displaces the first displacement member 36. The first displacement member 36 and the second displacement member 37 displace one or both of the pair of feed gears 30 in the directions of approaching and separating from each other. In this example, as described above, the second feed gear 30R is displaced in the direction of approaching and separating from the first feed gear 30L.

In the first displacement member 36, a second feed gear 30R is rotatably supported by a shaft 300R on one end side. Further, the first displacement member 36 is rotatably supported by the support member 301 of the wire feed portion 3A at the other end portion with the shaft 36a as a fulcrum.

In the first displacement member 36, the shaft 36a, which is the fulcrum of the rotational operation, is oriented in parallel with the shaft 300R of the second feed gear 30R. As a result, the first displacement member 36 is displaced by the rotational operation with the shaft 36a as the fulcrum, and the second feed gear 30R is brought into contact with the first feed gear 30L.

The first displacement member 36 includes a pressed portion 36b pressed from the second displacement member 37 on one end side. The pressed portion 36b is provided on the side of the portion that supports the shaft 300R of the second feed gear 30R.

The second displacement member 37 is rotatably supported by the support member 301 of the wire feeding portion 3A with the shaft 37a as a fulcrum. Further, the second displacement member 37 includes a pressing portion 37b that presses the pressed portion 36b of the first displacement member 36 on one end side of the shaft 37a.

The second displacement member 37 is displaced by a rotational motion with the shaft 37a as a fulcrum, the pressing portion 37b presses the pressed portion 36b of the first displacement member 36, and the pressing portion 37b presses the pressed portion 36b. Is released.

The wire feed portion 3A includes a spring 38 that presses the second feed gear 30R against the first feed gear 30L. The spring 38 is composed of, for example, a compression coil spring, and presses the other end side of the second displacement member 37 sandwiching the shaft 37a.

The second displacement member 37 is displaced by the rotational operation with the shaft 37a as a fulcrum due to the pressing by the spring 38, and the pressing portion 37b presses the pressed portion 36b of the first displacement member 36. When the pressing portion 37b of the second displacement member 37 presses the pressed portion 36b of the first displacement member 36, the first displacement member 36 is displaced by a rotational operation with the shaft 36a as a fulcrum. As a result, the second feed gear 30R is pressed in the direction of the first feed gear 30L by the force of the spring 38.

When the wire W is loaded between the first feed gear 30L and the second feed gear 30R, the wire is between the groove portion 32L of the first feed gear 30L and the groove portion 32R of the second feed gear 30R. W is pinched.

Further, with the wire W sandwiched between the groove portion 32L of the first feed gear 30L and the groove portion 32R of the second feed gear 30R, the tooth portion 31L of the first feed gear 30L and the second feed gear 30R are held. Tooth portion 31R meshes with each other.

3B and 3C are cross-sectional plan views showing an example of the binding portion, and next, the configuration of the binding portion will be described with reference to each figure.

The binding portion 7A includes a wire locking body 70 to which the wire W is locked, and a rotating shaft 72 for operating the wire locking body 70. In the binding unit 7A and the drive unit 8A, the rotary shaft 72 and the motor 80 are connected via the speed reducer 81, and the rotary shaft 72 is driven by the motor 80 via the speed reducer 81.

The wire locking body 70 includes a center hook 70C connected to the rotation shaft 72, a first side hook 70R and a second side hook 70L that open and close with respect to the center hook 70C, a first side hook 70R, and a first side hook 70L. The side hook 70L of No. 2 is operated, and a sleeve 71 for forming the wire W into a desired shape is provided.

The center hook 70C is rotatable with respect to the rotating shaft 72 at the tip of the rotating shaft 72, which is one end of the rotating shaft 72 along the axial direction, and moves in the axial direction integrally with the rotating shaft 72. Are linked through possible configurations.

The wire locking body 70 opens and closes in a direction in which the tip end side of the first side hook 70R is separated from the center hook 70C by a rotational operation with the shaft 71b as a fulcrum. Further, the tip end side of the second side hook 70L opens and closes in a direction in which the tip end side is in contact with the center hook 70C.

The sleeve 71 has a convex portion (not shown) protruding from the inner peripheral surface of the space into which the rotary shaft 72 is inserted, and the convex portion of the feed screw 72a formed on the outer periphery of the rotary shaft 72 along the axial direction. Enter the groove. When the rotating shaft 72 rotates, the sleeve 71 has a convex portion (not shown) and the action of the feed screw 72a of the rotating shaft 72, so that the sleeve 71 is in the front-rear direction, which is the direction along the axial direction of the rotating shaft 72, in the rotating direction of the rotating shaft 72. Move accordingly. Further, the sleeve 71 rotates integrally with the rotating shaft 72.

The sleeve 71 includes an opening / closing pin 71a for opening / closing the first side hook 70R and the second side hook 70L.

The opening / closing pin 71a is inserted into the opening / closing guide hole 73 provided in the first side hook 70R and the second side hook 70L. The opening / closing guide hole 73 extends along the moving direction of the sleeve 71, and the linear movement of the opening / closing pin 71a that moves in conjunction with the sleeve 71 is the first side hook 70R and the first side hook 70R with the shaft 71b as a fulcrum. It has a shape that can be converted into an opening / closing operation by rotating the side hook 70L of 2.

In the wire locking body 70, the sleeve 71 moves in the rear direction indicated by the arrow A2, so that the first side hook 70R and the second side hook 70L are formed by the locus of the opening / closing pin 71a and the shape of the opening / closing guide hole 73. , Moves in a direction away from the center hook 70C by a rotational operation with the shaft 71b as a fulcrum.

As a result, the first side hook 70R and the second side hook 70L open with respect to the center hook 70C, and between the first side hook 70R and the center hook 70C, the second side hook 70L and the center hook 70C. A feed path through which the wire W passes is formed between the and.

When the first side hook 70R and the second side hook 70L are open with respect to the center hook 70C, the wire W sent by the wire feed portion 3A is between the center hook 70C and the first side hook 70R. Pass. The wire W passing between the center hook 70C and the first side hook 70R is guided to the curl forming portion 5A. Then, the wire W, which is curled by the curl forming portion 5A and guided to the binding portion 7A, passes between the center hook 70C and the second side hook 70L.

In the wire locking body 70, the sleeve 71 moves in the forward direction indicated by the arrow A1, so that the first side hook 70R and the second side hook 70L are formed by the locus of the opening / closing pin 71a and the shape of the opening / closing guide hole 73. , Moves in a direction approaching the center hook 70C by a rotational operation with the shaft 71b as a fulcrum. As a result, the first side hook 70R and the second side hook 70L are closed with respect to the center hook 70C.

When the first side hook 70R is closed with respect to the center hook 70C, the wire W sandwiched between the first side hook 70R and the center hook 70C is placed between the first side hook 70R and the center hook 70C. Is locked in a form that allows it to move. Further, when the second side hook 70L is closed with respect to the center hook 70C, the wire W sandwiched between the second side hook 70L and the center hook 70C becomes the second side hook 70L and the center hook 70C. It is locked in such a way that it cannot be pulled out from between.

The sleeve 71 has a bent portion 71c1 that forms the wire W into a predetermined shape by pushing the tip end side, which is one end of the wire W, in a predetermined direction and bending the sleeve 71, and the other of the wires W cut by the cut portion 6A. A bent portion 71c2 for forming the wire W into a predetermined shape by pushing and bending the end side, which is the end portion of the wire W, in a predetermined direction is provided.

By moving in the forward direction indicated by the arrow A1, the sleeve 71 pushes the tip end side of the wire W locked by the center hook 70C and the second side hook 70L with the bending portion 71c1 and bends to the reinforcing bar S side. Further, the sleeve 71 is locked by the center hook 70C and the first side hook 70R by moving in the forward direction indicated by the arrow A1, and the end side of the wire W cut by the cutting portion 6A is bent by the bending portion 71c2. Push and bend to the S side of the reinforcing bar.

The binding portion 7A includes a rotation regulating portion 74 that regulates the rotation of the wire locking body 70 and the sleeve 71 that are interlocked with the rotational operation of the rotating shaft 72. The binding part 7A. The rotation regulating unit 74 regulates the rotation of the sleeve 71 linked to the rotation of the rotating shaft 72 according to the position of the sleeve 71 along the position in the axial direction of the rotating shaft 72, and the sleeve 71 is rotated by the rotational operation of the rotating shaft 72. Moves back and forth. Further, when the restriction on the rotation of the sleeve 71 by the rotation restricting unit 74 is released, the sleeve 71 rotates in conjunction with the rotation of the rotating shaft 72.

Next, the wire feeding mechanism 2A will be described with reference to each figure. The wire feeding mechanism 2A is a wire drawing mechanism 22 for feeding the wire W between the reinforcing bar binding machine 1A and the reel 20, and a first wire guiding portion 23 for guiding the wire W between the reel 20 and the wire pulling mechanism 22. And a second wire guiding portion 24 for guiding the wire W between the reinforcing bar binding machine 1A and the wire pulling mechanism 22.

The binding equipment 100A includes a reel accommodating portion 21 in which the reel 20 around which the wire W is wound is accommodated. In the reel accommodating portion 21, the reel 20 around which the wire W is wound so as to be pulled out is rotated and detachably accommodated. As the wire W, a wire made of a metal wire that can be plastically deformed, a wire in which the metal wire is coated with a resin, a stranded wire, or the like is used. In the reel 20, one wire W is wound around a hub portion (not shown) so that the wire W can be pulled out from the reel 20.

In this example, the reel accommodating portion 21 binds the reinforcing bars S with the two wires W in the reinforcing bar binding machine 1A, so that the two reels 20 have the axis of rotation laterally oriented with respect to the vertical direction in the axial direction. It is housed side by side along.

The wire pulling mechanism 22 of the wire feeding mechanism 2A sets the positions of the pulling roller 22a that pulls the wire W between the first wire guiding portion 23 and the second wire guiding portion 24 and the pulling roller 22a to the first wire. A drive unit 22b for moving the guide unit 23 and the second wire guide unit 24 in a direction intersecting the wire W is provided. The pull-out roller 22a is in contact with the wire W between the first wire guiding portion 23 and the second wire guiding portion 24, and has an upper limit position P1 as a first position as a standby position and a second wire W to be pulled. It moves between the lower limit position P2 as the position of the above and in the direction intersecting the wire W between the first wire guiding portion 23 and the second wire guiding portion 24.

As a result, in the wire pulling mechanism 22, the pulling roller 22a moves from the upper limit position to the lower limit position, so that the wire W between the reel 20 and the first wire guiding portion 23, the reinforcing bar binding machine 1A, and the second bar binding machine 22 A pulling force is applied between the wire guiding portion 24 and the wire W between the first wire guiding portion 23 and the second wire guiding portion 24.

The first wire guiding portion 23 is an example of a wire guiding member on the upstream side of the wire drawing mechanism 22 with respect to the feeding direction of the wire W sent from the reel 20 housed in the reel accommodating portion 21 to the reinforcing bar binding machine 1A. The rollers 23a, 23b, and 23c are provided. The first wire guiding portion 23 guides the path to which the wire W drawn from the reel 20 housed in the reel accommodating portion 21 is sent in the direction of the roller 23a by the roller 23b, and the second wire guiding portion 24 is guided by the roller 23a. Guide in the direction. The rollers 23a, 23b, and 23c have independent configurations corresponding to the two wires W, but the two wires W may be guided by the common rollers 23a, 23b, and 23c. Further, the two wires W may be guided by one roller.

The second wire guiding portion 24 includes a roller 24a as an example of the wire guiding member on the downstream side of the wire pulling mechanism 22. The second wire guiding portion 24 guides the path to which the wire W is sent in the direction of the reinforcing bar binding machine 1A by the roller 24a.

The rollers 23a and 23b of the first wire guiding portion 23 and the rollers 24a of the second wire guiding portion 24 are provided at substantially the same height in the vertical direction and come into contact with the wire W from below. The rollers 23a and 23b of the first wire guiding portion 23 and the rollers 24a of the second wire guiding portion 24 are supported by axes in a direction intersecting the vertical direction. The rollers 23a and 23b of the first wire guiding portion 23 and the rollers 24a of the second wire guiding portion 24 are, for example, rotatably supported by a shaft, and the rollers 23a and 23b of the first wire guiding portion 23 and the like. The roller 24a of the second wire guiding portion 24 rotates in response to the feeding of the wire W. The wire guiding member is not limited to a rotating roller, and may be a non-rotating cylindrical or columnar member. The non-rotating member is not limited to a cylindrical or columnar member, and the sliding surface of the wire W is a curved surface. It may be a member composed of a flat surface.

The first wire guiding portion 23 includes a load applying means for applying the first load in the feeding direction of the wire W. The load applying means is configured to apply a predetermined load in the rotation direction of the rollers 23a and 23b, and the contact angle (length) between the rollers 23a and 23b and the wire W is different from that of the roller 24a of the second wire guiding portion 24. It is realized by the configuration etc. As a configuration in which the contact angle (length) between the rollers 23a and 23b and the wire W is different from that of the roller 24a of the second wire guiding portion 24, the feeding path of the wire W having different diameters of the rollers is provided. It is realized by bending and changing the contact angle (length) of the wire W.

The second wire guiding portion 24 includes a load applying means for applying a second load in the feeding direction of the wire W. The load applying means has a configuration in which a predetermined load is applied in the rotation direction of the roller 24a, and the contact angle (length) between the roller 24a and the wire W has a difference from the rollers 23a and 23b of the first wire guiding portion 23. It is realized by the configuration etc. As a configuration in which the contact angle (length) between the roller 24a and the wire W is different from that of the rollers 23a and 23b of the first wire guiding portion 23, the feeding path of the wire W having different diameters of the rollers is used. It is realized by bending and changing the contact angle (length) of the wire W.

In this example, as the load applying means, the roller 23c is provided between the rollers 23a and the rollers 23b in the first wire guiding portion 23. The roller 23c is in contact with the wire W from the upper side, and by bending the feeding path of the wire W, the contact angle (length) between the rollers 23a and 23b and the wire W is set with respect to the roller 24a of the second wire guiding portion 24. To increase. As a result, the load applied to the wire W guided by the first wire guiding portion 23 is larger than the load applied to the wire W guided by the second wire guiding portion 24, and the first load> the second load. It is configured to be.

In the wire pulling mechanism 22, the pulling roller 22a at the upper limit position P1 has the rollers 23a and 24a on the wire W between the roller 23a of the first wire guiding portion 23 and the roller 24a of the second wire guiding portion 24. Contact from the upper side, which is the opposite side to the contact side. The wire drawing mechanism 22 is provided from the upper limit position P1 in a direction in which the drawing roller 22a intersects the wire W between the roller 23a of the first wire guiding portion 23 and the roller 24a of the second wire guiding portion 24. Move to the lower limit position P2.

As a result, the wire W between the roller 23a of the first wire guiding portion 23 and the roller 24a of the second wire guiding portion 24 is pulled downward by the pull-out roller 22a. Then, the wire W between the reinforcing bar binding machine 1A and the second wire guiding portion 24, and the wire W between the first wire guiding portion 23 and the reel 20 housed in the reel accommodating portion 21 are the first. It is sent between the roller 23a of the wire guiding portion 23 and the roller 24a of the second wire guiding portion 24.

At this time, the magnitude of the load applied to the wire W guided by the first wire guiding portion 23 and the load applied to the wire W guided by the second wire guiding portion 24 on the first wire guiding portion 23 side. It is switched whether the wire W is sent or the wire W on the second wire guiding portion 24 side is sent.

The wire feeding mechanism 2A includes an upper limit detection sensor 25a that detects that the pull-out roller 22a is located at the upper limit position P1, and a lower limit detection sensor 25b that detects that the pull-out roller 22a is located at the lower limit position P2.

The wire feeding mechanism 2A includes a guide portion 27 that regulates the position of each wire W along the direction in which the two wires W are parallel to each other within a predetermined range along the moving direction of the pull-out roller 22a.

The guide portion 27 is provided between the wire pulling mechanism 22 and the first wire guiding portion 23, and between the wire pulling mechanism 22 and the second wire guiding portion 24. In this example, as shown in FIGS. 1B, 1D and 1E, the wire drawing mechanism 22 is provided between the wire drawing mechanism 22 and the first wire guiding portion 23 in the vicinity of the wire drawing mechanism 22. Further, it is provided between the wire pulling mechanism 22 and the second wire guiding portion 24 in the vicinity of the wire pulling mechanism 22. That is, the guide portion 27 is provided before and after the pull-out roller 22a along the feeding direction of the wire W.

The guide portion 27 is provided on the outer side of the wire W located on the outermost side of the plurality of wires W in parallel along the direction in which the plurality of wires W are parallel to each other, and the wire W moves to the outside of the feed path. Regulate that. Further, the guide portion 27 is provided between a plurality of wires W in parallel to separate the feeding path of the wires W. In this example, the guide portion 27 is located between the first guide portion 27a provided on the outside of each wire W and the two wires W in the parallel direction of the two wires W (W1, W2). A second guide portion 27b provided in the above is provided.

The first guide portion 27a extends from the base portion 112A along the moving direction of the pull-out roller 22a, and the second guide portion 27b extends from the base portion 112A along the moving direction of the pull-out roller 22a.

The guide portion 27 extends along the moving direction of the pull-out roller 22a to one side of the second guide portion 27b along the direction in which the two wires W are parallel, and at least one wire W passes through the guide portion 27. One of the first guide portions 27a is provided so as to face each other with a possible gap. In the guide portion 27, the guide portion 27c is formed in the gap between the first guide portion 27a and the second guide portion 27b.

Further, the guide portion 27 extends to the other side of the second guide portion 27b along the direction in which the two wires W are parallel to each other along the moving direction of the pull-out roller 22a, and at least one wire W is formed. The other first guide portion 27a is provided so as to face each other with a gap through which the guide can pass. In the guide portion 27, the guide portion 27c is formed in the gap between the other first guide portion 27a and the second guide portion 27b.

As a result, the guide portion 27 has the two wires W in parallel with each wire W in the range in which the pull-out roller 22a moves from the upper limit position to the lower limit position before and after the pull-out roller 22a along the feeding direction of the wire W. Suppresses moving in the direction of the wire.

FIG. 4 is a block diagram showing an example of the control function of the bundling equipment. In the binding equipment 100A, the control unit 110A controls the motor 80 and the feed motor 31 of the reinforcing bar binding machine 1A. The control unit 110A controls the position of the sleeve 71 by controlling the rotation amount of the motor 80, the operation of locking the wire W by the wire locking body 70, the operation of cutting the wire W by the cutting unit 6A, and the wire. The operation of twisting the locking body 70 wire W is performed.

Further, the control unit 110A controls the forward rotation and the reverse rotation of the feed motor 31 to feed the wire W in the forward direction, thereby winding the wire W around the reinforcing bar S and sending the wire W in the reverse direction. Then, the operation of winding the wire W around the reinforcing bar S is performed.

Further, the control unit 110A controls the motor 22c of the drive unit 22b of the wire feeding mechanism 2A. The control unit 110A controls the forward rotation and reverse rotation of the motor 22c based on the positions of the pull-out roller 22a detected by the upper limit detection sensor 25a and the lower limit detection sensor 25b, and lowers or raises the pull-out roller 22a.

<Operation example of the binding equipment of the first embodiment>
FIG. 5 is a flowchart showing an example of an operation of binding reinforcing bars with a reinforcing bar binding machine in a binding facility, and FIGS. 6A to 6B are operation explanatory views showing an example of an operation of binding reinforcing bars with a reinforcing bar binding machine in a binding facility. Next, the operation of binding the reinforcing bars S with the wires W by the reinforcing bar binding machine 1A will be described with reference to each figure.

The binding equipment 100A moves the reinforcing bar S so that the intersecting binding target points of the reinforcing bars S face the curl forming portion 5A of the reinforcing bar binding machine 1A in step SA1 of FIG. 5, and curls in step SA2. The reinforcing bar binding machine 1A is moved so that the binding target portion of the reinforcing bar S is inserted between the curl guide 50 and the guide guide 51 of the forming portion 5A.

When the control unit 110A receives the signal for bundling the reinforcing bars S, the control unit 110A drives the feed motor 31 in the forward rotation direction in step SA3, and the wire feed unit 3A sends the wire W in the positive direction indicated by the arrow F. In the reinforcing bar binding machine 1A, the two wires W are sent in parallel along the axial direction of the loop Ru formed by the wires W.

The wire W sent in the positive direction passes between the center hook 70C and the first side hook 70R, and is sent to the curl guide 50 of the curl forming portion 5A. By passing through the curl guide 50, the wire W has a winding habit of being wound around the reinforcing bar S by the guide members 53a and 53b.

The wire W having a winding habit by the curl guide 50 is guided to the guide guide 51 and further fed in the positive direction by the wire feed portion 3A, so that the guide guide 51 between the center hook 70C and the second side hook 70L. Is guided to. Then, the wire W is fed until the tip thereof is abutted against the feed restricting unit 90. By restricting the feeding path of the wire W sent by the wire feeding portion 3A by the curl forming portion 5A, the locus of the wire W becomes a loop Ru as shown by the broken line in FIG. 6A, and the wire W is wound around the reinforcing bar S. It is turned. When the tip of the wire W is fed to the position where it abuts against the feed restricting unit 90, the control unit 110A stops driving the feed motor 31.

After stopping the feeding of the wire W in the forward direction, the control unit 110A drives the motor 80 in the forward rotation direction. In the operating range in which the rotation regulating unit 74 regulates the rotation of the sleeve 71 linked to the rotation of the rotating shaft 72, the sleeve 71 converts the rotational movement of the rotating shaft 72 into a linear movement and moves in the forward direction of the arrow A1. Moving.

When the sleeve 71 moves forward, the opening / closing pin 71a passes through the opening / closing guide hole 73. As a result, as shown in FIG. 3C, the first side hook 70R moves in a direction approaching the center hook 70C by a rotational operation with the shaft 71b as a fulcrum. When the first side hook 70R is closed with respect to the center hook 70C, the wire W sandwiched between the first side hook 70R and the center hook 70C is placed between the first side hook 70R and the center hook 70C. Is locked in a form that allows it to move.

Further, the second side hook 70L moves in a direction approaching the center hook 70C by a rotational operation with the shaft 71b as a fulcrum. When the second side hook 70L is closed with respect to the center hook 70C, the wire W sandwiched between the second side hook 70L and the center hook 70C is placed between the second side hook 70L and the center hook 70C. It is locked in a form that does not come off.

After advancing the sleeve 71 to the end point position of the operating range in which the wire W is locked by the operation of closing the first side hook 70R and the second side hook 70L, the control unit 110A temporarily stops the rotation of the motor 80. In step SA4, the feed motor 31 is driven in the reverse rotation direction. As a result, the pair of feed gears 30 are reversed.

Therefore, the wire W sandwiched between the pair of feed gears 30 is fed in the opposite direction indicated by the arrow R.

In the wire W wound around the reinforcing bar S and locked by the wire locking body 70, the portion on the tip end side sandwiched between the second side hook 70L and the center hook 70C is the second side hook. It is locked in a form that does not come off between the 70L and the center hook 70C. Further, in the wire W locked by the wire locking body 70, the portion sandwiched between the first side hook 70R and the center hook 70C is a wire between the first side hook 70R and the center hook 70C. It is locked in a form capable of moving in the circumferential direction of the loop Ru along the feed path of W.

As a result, the wire W wound around the reinforcing bar S is wound around the reinforcing bar S by the operation of sending the wire W in the opposite direction indicated by the arrow R, as shown in FIG. 6B. In the operation of feeding the wire W in the reverse direction by the reinforcing bar binding machine 1A, the wire W is not fed in the reverse direction by the wire feeding mechanism 2A. Therefore, the wire W is loosened between the reinforcing bar binding machine 1A and the second wire guiding portion 24 by the operation of sending the wire W in the reverse direction by the reinforcing bar binding machine 1A.

When the wire W is pulled back to the position where the wire W is wound around the reinforcing bar S, the control unit 110A stops driving the feed motor 31 in the reverse rotation direction, and then drives the motor 80 in the forward rotation direction to drive the sleeve 71 with an arrow. Move in the forward direction indicated by A1. The movement of the sleeve 71 in the forward direction is transmitted to the cutting portion 6A, so that the movable blade portion 61 rotates, and the wire W locked by the first side hook 70R and the center hook 70C is attached to the fixed blade portion. It is cut by the operation of 60 and the movable blade portion 61.

When the wire W is cut, the bent portions 71c1 and 71c2 move in the direction in contact with the reinforcing bar S. As a result, the tip end side of the wire W locked by the center hook 70C and the second side hook 70L is pressed toward the reinforcing bar S side by the bending portion 71c1 and bent toward the reinforcing bar S side with the locking position as a fulcrum. As the sleeve 71 moves further forward, the wire W locked between the second side hook 70L and the center hook 70C is held in a state of being sandwiched by the bent portion 71c1.

Further, the end side of the wire W which is locked by the center hook 70C and the first side hook 70R and cut by the cutting portion 6A is pressed toward the reinforcing bar S side by the bending portion 71c2, and the reinforcing bar is used as a fulcrum at the locking position. Bend to the S side. As the sleeve 71 moves further forward, the wire W locked between the first side hook 70R and the center hook is held in a state of being sandwiched between the bent portions 71c2.

After bending the tip end side and the end end side of the wire W toward the reinforcing bar S side, the motor 80 is further driven in the forward rotation direction, so that the sleeve 71 moves further forward. When the sleeve 71 moves to a predetermined position and reaches the operating range for twisting the wire W locked by the wire locking body 70, the rotation restriction unit 74 releases the restriction on the rotation of the sleeve 71, and the rotation shaft. The sleeve 71 rotates in conjunction with the rotation of the 72.

As a result, the motor 80 is further driven in the forward rotation direction, so that the wire locking body 70 rotates in conjunction with the rotation shaft 72, the wire W is twisted in step SA5, and the reinforcing bar S is bound by the wire Wd. do.

The control unit 110A detects the load applied to the motor 80, and when it detects that the load applied to the motor has reached a predetermined value, for example, the maximum load, the control unit 110A stops the forward rotation of the motor 80 at a predetermined timing.

After stopping the forward rotation of the motor 80, the control unit 110A rotates the motor 80 in the reverse direction so that the first side hook 70R opens with respect to the center hook 70C and the second side hook 70L becomes the center. The sleeve 71 is moved backward to a position where it is opened with respect to the hook 70C, and the wire locking body 70 is returned to the standby position. When the wire W that binds the reinforcing bars S is disengaged from the wire locking body 70, the control unit 110A moves the reinforcing bar binding machine 1A to the standby position in step SA6.

FIG. 7 is a flowchart showing an example of an operation of feeding a wire by a wire feeding device, FIGS. 8A to 8E are operation explanatory views showing an example of an operation of feeding a wire by a wire feeding device, and then FIG. 7A is a wire feeding mechanism 2A. The operation of feeding the wire will be described.

The wire feeding mechanism 2A feeds the wire W in the reverse direction in step SA4 in the binding operation of the reinforcing bar binding machine 1A described above, and then feeds the wire W in the forward direction in step SA3 in the next binding operation. In addition, an operation of pulling out a predetermined amount of wire W from the reel 20 is performed.

In step SB1 of FIG. 7, the control unit 110A controls the drive unit 22b to rotate the motor 22c in the normal direction, and lowers the pull-out roller 22a from the upper limit position P1 in the direction of the arrow Do. In the wire pulling mechanism 22, the pulling roller 22a is at the upper limit position P1 along the direction intersecting the wire W between the roller 23a of the first wire guiding portion 23 and the roller 24a of the second wire guiding portion 24. It descends from to the lower limit position P2.

When the pull-out roller 22a starts descending from the upper limit position P1, the wire W between the roller 23a of the first wire guiding portion 23 and the roller 24a of the second wire guiding portion 24 is pulled downward to pull the reel 20 downward. The wire W between the wire guiding portion 23 and the first wire guiding portion 23 and the wire W between the reinforcing bar binding machine 1A and the second wire guiding portion 24 are the first wire guiding portion 23 and the second wire guiding portion. It is pulled between 24 and 24. Therefore, the wire W between the reinforcing bar binding machine 1A and the second wire guiding portion 24 and the wire W between the first wire guiding portion 23 and the reel 20 housed in the reel accommodating portion 21 are the first. It is sent between the roller 23a of the wire guiding portion 23 and the roller 24a of the second wire guiding portion 24.

As described above, the load applied to the wire W guided by the first wire guiding portion 23 is larger than the load applied to the wire W guided by the second wire guiding portion 24, and the first load> the second. It is configured to be a load.

Further, in the reinforcing bar binding machine 1A, the wire W is wound around the reinforcing bar S by sending the wire W in the opposite direction in the operation of binding the reinforcing bar S with the wire W. In the operation of feeding the wire W in the reverse direction by the reinforcing bar binding machine 1A, the wire W is not fed in the reverse direction by the wire feeding mechanism 2A. Therefore, in the operation of feeding the wire W in the reverse direction by the reinforcing bar binding machine 1A, the wire W is loosened between the reinforcing bar binding machine 1A and the second wire guiding portion 24 as shown in FIG. 8A.

As a result, in the operation of pulling the wire W by the pulling roller 22a of the wire pulling mechanism 22, first, as shown in steps SB2 and 8B of FIG. 7, the first load> the second load causes the reinforcing bar to be bound. The surplus of the wire W loosened in the wire W feeding path 26 between the machine 1A and the second wire guiding portion 24 is the roller 23a and the second of the first wire guiding portion 23 as shown by the arrow R1. It is drawn between the wire guide portion 24 and the roller 24a of the wire guide portion 24.

When the surplus wire W between the reinforcing bar binding machine 1A and the second wire guide portion 24 is sent and the slack of the wire W is eliminated, the pair of feed gears 30 of the wire feed portion 3A do not rotate in the stopped state. Therefore, the wire W cannot be fed in the wire W feeding path 26 between the reinforcing bar binding machine 1A and the second wire guiding portion 24. As a result, the feed gear 30 becomes a load and the tension applied to the wire W between the reinforcing bar binding machine 1A and the second wire guide portion 24 increases, and the load due to the feed gear 30 is applied to the second load. The second load + the load of the feed gear> the first load.

When the second load + the load of the feed gear> the first load, the wire W is pulled out from the reel 20 accommodated in the reel accommodating portion 21 as shown by the arrow F1 in steps SB3 and 8C of FIG. It is sent between the roller 23a of the first wire guiding portion 23 and the roller 24a of the second wire guiding portion 24. When the pull-out roller 22a moves to the lower limit position, the slackening of the wire W in the feeding path 26 of the wire W between the reinforcing bar binding machine 1A and the second wire guiding portion 24 is eliminated, and the reinforcing bar S is pulled by the reinforcing bar binding machine 1. The movement amount of the pull-out roller 22a is set so that the wire W required for binding can be pulled out from the reel 20.

When the control unit 110A detects that the pull-out roller 22a has moved to the lower limit position in step SB4 of FIG. 7 by the lower limit detection sensor 25b, the control unit 110A switches the rotation direction of the motor 22c from forward rotation to reverse rotation, and steps SB5 of FIG. , As shown in FIG. 8D, the drawer roller 22a is raised in the direction of the arrow Up. When the upper limit detection sensor 25a detects that the pull-out roller 22a has moved to the upper limit position in step SB6 of FIG. 7, the control unit 110A stops the rotation direction of the motor 22c in step SB7. As a result, the amount of wire W required for binding the reinforcing bar S with the reinforcing bar binding machine 1A is loosened between the roller 23a of the first wire guiding portion 23 and the roller 24a of the second wire guiding portion 24. It will be in a state.

In the next binding operation executed by the reinforcing bar binding machine 1A, the roller 23a of the first wire guiding portion 23 and the second wire guiding are performed by the operation of sending the wire W in the positive direction in step SA3, as shown in FIG. 8E. The loose wire W with the roller 24a of the portion 24 is sent in the direction of the arrow F2.

In this way, the magnitude of the load applied to the wire W guided by the first wire guiding portion 23 and the load applied to the wire W guided by the second wire guiding portion 24 is the magnitude of the load applied to the wire W guided by the second wire guiding portion 24, and the first wire guiding portion 23 side. It is switched between sending the wire W of the wire W and sending the wire W on the side of the second wire guiding portion 24.

As a result, in order to wind the wire W around the reinforcing bar S, the wire W is sent in the opposite direction by the reinforcing bar binding machine 1A, and the wire W is sent in the feeding path 26 between the reinforcing bar binding machine 1A and the second wire guiding portion 24. The slack of the wire W that occurs can be eliminated by the operation of pulling out the wire W by the wire pulling mechanism 22. Further, the amount of wire W required for binding the reinforcing bar S by the reinforcing bar binding machine 1A can be pulled out from the reel 20 by the operation of pulling out the wire W by the wire drawing mechanism 22.

As described above, when the pull-out roller 22a moves to the lower limit position and then moves to the upper limit position, the reinforcing bar is bound between the roller 23a of the first wire guiding portion 23 and the roller 24a of the second wire guiding portion 24. The amount of wire W required to bind the reinforcing bars S in the machine 1A is in a loosened state.

The wire W wound around the reel 20 has a so-called winding habit, and when it becomes loose,
There is a possibility that one loose wire W may be entangled between the first wire guiding portion 23 and the second wire guiding portion 24 due to twisting or the like. Further, there is a possibility that the two loose wires W move in a direction approaching each other between the first wire guiding portion 23 and the second wire guiding portion 24, and the two wires W are entangled due to twisting or the like. be.

Further, the two loose wires W may move in a direction away from each other between the first wire guiding portion 23 and the second wire guiding portion 24. In the form in which a plurality of binding equipment 100A are used side by side, the two wires W move in a direction approaching each other between the adjacent binding equipment 100A, and the two wires are twisted between the adjacent binding equipment 100A. W may get entangled.

On the other hand, the wire feeding mechanism 2A includes a guide portion 27 that regulates the position of each wire W along the direction in which the two wires W are parallel to each other within a predetermined range along the moving direction of the pull-out roller 22a.

The guide portion 27 is provided on the first wire guiding portion 23 side and the second wire guiding portion 24 side of the pull-out roller 22a along the feeding direction of the wire W.

The guide portion 27 is provided on both sides of the second guide portion 27b extending along the moving direction of the pulling roller 22a via the guiding portions 27c extending along the moving direction of the pulling roller 22a in the moving direction of the pulling roller 22a. A first guide portion 27a extending along the line is provided so as to face each other.

In the operation of moving the drawing roller 22a to the lower limit position as described above, in order to absorb the excess wire W between the reinforcing bar binding machine 1A and the second wire guiding portion 24 and pull out the wire W from the reel 20. One wire W1 of the two wires W is guided by a guide portion 27c between the second guide portion 27b and one first guide portion 27a, and the other wire W2 of the two wires W is , The guide portion 27c between the second guide portion 27b and the other first guide portion 27a is guided.

After the pull-out roller 22a moves to the lower limit position, the pull-out roller 22a moves to the upper limit position, so that the two wires W are moved between the first wire guiding portion 23 and the second wire guiding portion 24 of the pull-out roller 22a. It slackens downward along the direction of movement. In the two wires W loosened between the first wire guiding portion 23 and the second wire guiding portion 24, one wire W1 of the two wires W is the second guide portion 27b and the other. One wire W2 of the two wires W passes through the guide portion 27c between the guide portion 27a and the guide portion 27c between the second guide portion 27b and the first guide portion 27a. Pass.

As a result, the two wires W loosened between the first wire guiding portion 23 and the second wire guiding portion 24 are suppressed from moving in the parallel direction. Therefore, it is possible to prevent one wire W loosened between the first wire guiding portion 23 and the second wire guiding portion 24 from being entangled due to twisting or the like. Further, it is possible to prevent the two wires W loosened between the first wire guiding portion 23 and the second wire guiding portion 24 from being entangled by moving in a direction approaching each other and being twisted.

Further, the two wires W loosened between the first wire guiding portion 23 and the second wire guiding portion 24 move in directions away from each other, and the two wires are placed between the adjacent binding equipment 100A. W entanglement is suppressed.

In the next binding operation executed by the reinforcing bar binding machine 1A, the wire W loosened between the first wire guiding portion 23 and the second wire guiding portion 24 due to the operation of sending the wire W in the positive direction is shown in FIG. As shown in 8E, it is sent in the direction of arrow F2. As a result, the slack of the wire W between the first wire guiding portion 23 and the second wire guiding portion 24 is eliminated.

In the operation of eliminating the slack of the wire W between the first wire guiding portion 23 and the second wire guiding portion 24, one of the two wires W, the wire W1, is the lower end of the slackened portion of the wire W. Is guided by the guide portion 27c between the second guide portion 27b and the one first guide portion 27a, and moves upward along the moving direction of the pull-out roller 22a. Further, in the other wire W2 of the two wires W, the lower end of the loosened portion of the wire W is guided by the guide portion 27c between the second guide portion 27b and the other first guide portion 27a. It moves upward along the moving direction of the pull-out roller 22a.

As a result, even in the operation of eliminating the slack of the wire W between the first wire guiding portion 23 and the second wire guiding portion 24, the first wire guiding portion 23 and the second wire guiding portion 24 The two wires W in between are suppressed from moving in the parallel direction. Therefore, it is possible to prevent one wire W loosened between the first wire guiding portion 23 and the second wire guiding portion 24 from being entangled due to twisting or the like. Further, it is possible to prevent the two wires W loosened between the first wire guiding portion 23 and the second wire guiding portion 24 from being entangled by moving in a direction approaching each other and being twisted.

Further, the two wires W loosened between the first wire guiding portion 23 and the second wire guiding portion 24 move in directions away from each other, and the two wires are placed between the adjacent binding equipment 100A. W entanglement is suppressed.

<Structure example of binding equipment of the second embodiment>
9A is a perspective view showing an example of the binding equipment of the second embodiment, and FIG. 9B is a side view of a main part showing an example of the binding equipment of the second embodiment.

The binding equipment 100B of the second embodiment includes a reinforcing bar binding machine 1A for binding the reinforcing bar S, which is a binding object, with a wire W, and a wire feeding mechanism 2B for sending the wire W to the reinforcing bar binding machine 1A. In the binding equipment 100B of the second embodiment, the reinforcing bar binding machine 1A may be the same as the binding equipment 100A of the first embodiment. Further, in the wire feeding mechanism 2B, the wire drawing mechanism 22 and the second wire guiding portion 24 may be the same as the binding equipment 100A of the first embodiment.

The first wire guiding portion 23 includes a load applying means for applying the first load in the feeding direction of the wire W. The load applying means is realized by a configuration in which a predetermined load is applied in the rotation direction of the rollers 23a and 23b. In this example, as the load applying means, the roller 23a is non-rotating, and the wire W slides on the outer peripheral surface of the roller 23a. On the other hand, the roller 24a of the second wire guiding portion 24 is configured to rotate in accordance with the feeding of the wire W. As a result, the load applied to the wire W guided by the first wire guiding portion 23 is larger than the load applied to the wire W guided by the second wire guiding portion 24, and the first load> the second load. It is configured to be.

<Operation example of the binding equipment of the second embodiment>
10A to 10E are operation explanatory diagrams showing an example of the operation of feeding the wire by the wire feeding device, and then the operation of feeding the wire by the wire feeding mechanism 2B will be described. The operation of binding the reinforcing bars S in the reinforcing bar binding machine 1A is the same as the operation described in the flowchart of FIG. Further, the flow of the operation of feeding the wire by the wire feeding mechanism 2B is the same as the operation described in the flowchart of FIG. 7.

The wire feeding mechanism 2B feeds the wire W in the reverse direction in step SA4 in the binding operation of the reinforcing bar binding machine 1A described above, and then feeds the wire W in the forward direction in step SA3 in the next binding operation. In addition, an operation of pulling out a predetermined amount of wire W from the reel 20 is performed.

In step SB1 of FIG. 7, the control unit 110A controls the drive unit 22b to rotate the motor 22c in the normal direction, and lowers the pull-out roller 22a from the upper limit position P1 in the direction of the arrow Do. In the wire pulling mechanism 22, the pulling roller 22a is at the upper limit position P1 along the direction intersecting the wire W between the roller 23a of the first wire guiding portion 23 and the roller 24a of the second wire guiding portion 24. It descends from to the lower limit position P2.

When the pull-out roller 22a starts descending from the upper limit position P1, the wire W between the roller 23a of the first wire guiding portion 23 and the roller 24a of the second wire guiding portion 24 is pulled downward to pull the reel 20 downward. The wire W between the wire guiding portion 23 and the first wire guiding portion 23 and the wire W between the reinforcing bar binding machine 1A and the second wire guiding portion 24 are the first wire guiding portion 23 and the second wire guiding portion. It is pulled between 24 and 24. Therefore, the wire W between the reinforcing bar binding machine 1A and the second wire guiding portion 24 and the wire W between the first wire guiding portion 23 and the reel 20 housed in the reel accommodating portion 21 are the first. It is sent between the roller 23a of the wire guiding portion 23 and the roller 24a of the second wire guiding portion 24.

As described above, the load applied to the wire W guided by the first wire guiding portion 23 is larger than the load applied to the wire W guided by the second wire guiding portion 24, and the first load> the second. It is configured to be a load.

Further, by winding the wire W around the reinforcing bar S with the reinforcing bar binding machine 1A and sending the wire W in the opposite direction, as shown in FIG. 10A, between the reinforcing bar binding machine 1A and the second wire guiding portion 24. The wire W loosens.

As a result, in the operation of pulling the wire W by the pulling roller 22a of the wire pulling mechanism 22, first, as shown in steps SB2 and 10B of FIG. 7, the first load> the second load causes the reinforcing bar to be bound. The surplus of the wire W loosened in the wire W feeding path 26 between the machine 1A and the second wire guiding portion 24 is the roller 23a and the second of the first wire guiding portion 23 as shown by the arrow R1. It is drawn between the wire guide portion 24 and the roller 24a of the wire guide portion 24.

When the surplus wire W between the reinforcing bar binding machine 1A and the second wire guide portion 24 is sent and the slack of the wire W is eliminated, the pair of feed gears 30 of the wire feed portion 3A do not rotate in the stopped state. Therefore, the wire W between the reinforcing bar binding machine 1A and the second wire guiding portion 24 cannot be fed. As a result, the feed gear 30 becomes a load and the tension applied to the wire W between the reinforcing bar binding machine 1A and the second wire guide portion 24 increases, and the load due to the feed gear 30 is applied to the second load. The second load + the load of the feed gear> the first load.

When the second load + the load of the feed gear> the first load, the wire W is pulled out from the reel 20 accommodated in the reel accommodating portion 21 as shown by the arrow F1 in step SB3 and FIG. 10C of FIG. It is sent between the roller 23a of the first wire guiding portion 23 and the roller 24a of the second wire guiding portion 24. When the pull-out roller 22a moves to the lower limit position, the slack of the wire W between the reinforcing bar binding machine 1A and the second wire guiding portion 24 is eliminated, and the amount required for binding the reinforcing bars S with the reinforcing bar binding machine 1 The movement amount of the pull-out roller 22a is set so that the wire W of the wire W can be pulled out from the reel 20.

When the control unit 110A detects that the pull-out roller 22a has moved to the lower limit position in step SB4 of FIG. 7 by the lower limit detection sensor 25b, the control unit 110A switches the rotation direction of the motor 22c from forward rotation to reverse rotation, and steps SB5 of FIG. , As shown in FIG. 10D, the drawer roller 22a is raised in the direction of the arrow Up. When the upper limit detection sensor 25a detects that the pull-out roller 22a has moved to the upper limit position in step SB6 of FIG. 7, the control unit 110A stops the rotation direction of the motor 22c in step SB7. As a result, the amount of wire W required for binding the reinforcing bar S with the reinforcing bar binding machine 1A is loosened between the roller 23a of the first wire guiding portion 23 and the roller 24a of the second wire guiding portion 24. It will be in a state.

In the next binding operation executed by the reinforcing bar binding machine 1A, the roller 23a of the first wire guiding portion 23 and the second wire guiding are performed by the operation of sending the wire W in the positive direction in step SA3, as shown in FIG. 10E. The loose wire W with the roller 24a of the portion 24 is sent in the direction of the arrow F2.

As a result, also in the wire feeding mechanism 2B, in order to wind the wire W around the reinforcing bar S, the wire W is fed in the opposite direction by the reinforcing bar binding machine 1A between the reinforcing bar binding machine 1A and the second wire guiding portion 24. The slack of the wire W that occurs can be eliminated by the operation of pulling out the wire W by the wire pulling mechanism 22. Further, the amount of wire W required for binding the reinforcing bar S by the reinforcing bar binding machine 1A can be pulled out from the reel 20 by the operation of pulling out the wire W by the wire drawing mechanism 22.

<Structure example of binding equipment of the third embodiment>
11A is a side view showing an example of the binding equipment of the third embodiment, FIG. 11B is a perspective view showing an example of the binding equipment of the third embodiment, and FIG. 11C is a third embodiment. It is a side view of the main part which shows an example of the bundling equipment of.

The binding equipment 100C of the third embodiment includes a reinforcing bar binding machine 1A for binding the reinforcing bar S, which is a binding object, with a wire W, and a wire feeding mechanism 2C for sending the wire W to the reinforcing bar binding machine 1A. In the binding equipment 100C of the third embodiment, the reinforcing bar binding machine 1A may be the same as the binding equipment 100A of the first embodiment. Further, in the wire feeding mechanism 2C, the wire drawing mechanism 22 and the second wire guiding portion 24 may be the same as the binding equipment 100A of the first embodiment.

The first wire guiding portion 23 includes rollers 23a and 23c on the upstream side of the wire drawing mechanism 22 with respect to the feeding direction of the wire W sent from the reel 20 housed in the reel accommodating portion 21 to the reinforcing bar binding machine 1A. .. The first wire guiding portion 23 guides the path to which the wire W drawn from the reel 20 housed in the reel accommodating portion 21 is sent in the direction of the roller 23a by the roller 23b, and the second wire guiding portion 24 is guided by the roller 23a. Guide in the direction.

The first wire guiding portion 23 includes a wire slack absorbing mechanism 23d that absorbs the slack of the wire W. The wire slack absorbing mechanism 23d downwards the slack absorbing roller 23e provided between the rollers 23a and 23b along the direction in which the slack absorbing roller 23e intersects the wire W between the rollers 23a and the roller 23b. A spring 23f for urging is provided.

In the first wire guiding portion 23, the slack absorbing roller 23e contacts the wire W between the rollers 23a and the roller 23b from the upper side opposite to the side where the rollers 23a and 23b are in contact. The slack absorbing roller 23e is urged downward by the spring 23f along the direction intersecting the wire W between the roller 23a and the roller 23b, so that the urging force of the spring 23f and the tension applied to the wire W are exerted. The balance defines the position in the height direction.

<Operation example of the binding equipment of the third embodiment>
FIG. 12 is a flowchart showing an example of an operation of feeding a wire by a wire feeding device, FIGS. 13A to 13F are operation explanatory views showing an example of an operation of feeding a wire by a wire feeding device, and then FIG. 12C is a wire feeding mechanism 2C. The operation of feeding the wire will be described. The operation of binding the reinforcing bars S in the reinforcing bar binding machine 1A is the same as the operation described in the flowchart of FIG.

The wire feeding mechanism 2C feeds the wire W in the reverse direction in step SA4 in the binding operation of the reinforcing bar binding machine 1A described above, and then feeds the wire W in the forward direction in step SA3 in the next binding operation. In addition, an operation of pulling out a predetermined amount of wire W from the reel 20 is performed.

As described above, by winding the wire W around the reinforcing bar S with the reinforcing bar binding machine 1A and sending the wire W in the opposite direction, as shown in FIG. 13A, the reinforcing bar binding machine 1A and the second wire guiding portion 24 The wire W loosens between them.

As a result, the tension applied to the wire W in the wire feeding mechanism 2C is reduced. When the tension applied to the wire W decreases, the urging force of the spring 23f becomes larger than the tension applied to the wire W, and the slack absorbing roller 23e is along the direction in which the slack absorbing roller 23e intersects the wire W between the roller 23a and the roller 23b. It descends in the direction of arrow D1.

When the slack absorbing roller 23e descends, the wire W between the roller 23a and the roller 23b is pulled downward. As a result, as shown in steps SC1 and 13B of FIG. 12, the surplus of the loose wire W is drawn between the rollers 23a and the rollers 23b of the first wire guiding portion 23 as shown by the arrow R1. Is done.

In step SC2 of FIG. 12, the control unit 110A controls the drive unit 22b to rotate the motor 22c in the normal direction, and lowers the pull-out roller 22a from the upper limit position P1 in the direction of the arrow Do. In the wire pulling mechanism 22, the pulling roller 22a is at the upper limit position P1 along the direction intersecting the wire W between the roller 23a of the first wire guiding portion 23 and the roller 24a of the second wire guiding portion 24. It descends from to the lower limit position P2.

When the pull-out roller 22a starts descending from the upper limit position P1, the wire W between the roller 23a of the first wire guiding portion 23 and the roller 24a of the second wire guiding portion 24 is pulled downward to pull the reel 20 downward. The wire W between the wire guiding portion 23 and the first wire guiding portion 23 and the wire W between the reinforcing bar binding machine 1A and the second wire guiding portion 24 are the first wire guiding portion 23 and the second wire guiding portion. It is pulled between 24 and 24.

As a result, the tension applied to the wire W in the wire feeding mechanism 2C increases. When the tension applied to the wire W increases, the urging force of the spring 23f becomes relatively smaller than the tension applied to the wire W, and the direction in which the slack absorbing roller 23e intersects the wire W between the roller 23a and the roller 23b. Ascends in the direction of arrow U1 along. Therefore, first, as shown in step SC3 and FIG. 13C of FIG. 12, the wire W between the roller 23a and the roller 23b of the first wire guiding portion 23 in which the slack is absorbed by the wire slack absorbing mechanism 23d is first formed. As shown by the arrow F1, it is drawn between the roller 23a of the first wire guiding portion 23 and the roller 24a of the second wire guiding portion 24.

When the urging force of the spring 23f and the tension applied to the wire W are balanced, the wire W is pulled out from the reel 20 housed in the reel accommodating portion 21 as shown by the arrow F1 in steps SC4 and 13D of FIG. It is sent between the roller 23a of the wire guiding portion 23 and the roller 24a of the second wire guiding portion 24. When the pull-out roller 22a moves to the lower limit position P2, the excess wire W in the wire W feeding path 26 between the reinforcing bar binding machine 1A and the second wire guiding portion 24 where the slack is absorbed by the wire slack absorbing mechanism 23d. The movement amount of the drawing roller 22a is set so that the amount of wire W required for binding the reinforcing bar S by the reinforcing bar binding machine 1A can be pulled out from the reel 20.

When the control unit 110A detects that the pull-out roller 22a has moved to the lower limit position P2 in step SC5 of FIG. 12, the lower limit detection sensor 25b switches the rotation direction of the motor 22c from forward rotation to reverse rotation, and the step of FIG. 12 As shown in SC6 and FIG. 13E, the drawer roller 22a is raised in the direction of the arrow Up. When the upper limit detection sensor 25a detects that the pull-out roller 22a has moved to the upper limit position P1 in step SC7 of FIG. 12, the control unit 110A stops the rotation direction of the motor 22c in step SB7. As a result, the amount of wire W required for binding the reinforcing bar S with the reinforcing bar binding machine 1A is loosened between the roller 23a of the first wire guiding portion 23 and the roller 24a of the second wire guiding portion 24. It will be in a state.

In the next binding operation executed by the reinforcing bar binding machine 1A, the roller 23a of the first wire guiding portion 23 and the second wire guiding are performed by the operation of sending the wire W in the positive direction in step SA3, as shown in FIG. 13F. The loose wire W with the roller 24a of the portion 24 is sent in the direction of the arrow F2.

As a result, also in the wire feeding mechanism 2C, the wire W is wound around the reinforcing bar S by providing the wire slack absorbing mechanism 23d in the first wire guiding portion 23, so that the wire W is fed in the reverse direction by the reinforcing bar binding machine 1A. Then, the slack of the wire W generated between the reinforcing bar binding machine 1A and the second wire guiding portion 24 can be absorbed and eliminated by the wire slack absorbing mechanism 23d. Further, the amount of wire W required for binding the reinforcing bar S by the reinforcing bar binding machine 1A can be pulled out from the reel 20 by the operation of pulling out the wire W by the wire drawing mechanism 22.

<Structure example of binding equipment of the fourth embodiment>
FIG. 14 is a side view of a main part showing an example of the bundling equipment according to the fourth embodiment.

The binding equipment 100D of the fourth embodiment includes a reinforcing bar binding machine 1A for binding the reinforcing bar S, which is a binding object, with a wire W, and a wire feeding mechanism 2D for sending the wire W to the reinforcing bar binding machine 1A. In the binding equipment 100D of the fourth embodiment, the reinforcing bar binding machine 1A may be the same as the binding equipment 100A of the first embodiment. Further, in the wire feeding mechanism 2D, the wire drawing mechanism 22 and the first wire guiding portion 23 may be the same as the binding equipment 100A of the first embodiment or the binding equipment 100B of the second embodiment.

The second wire guiding portion 24 includes rollers 24a and 24c on the downstream side of the wire drawing mechanism 22 with respect to the feeding direction of the wire W sent from the reel 20 housed in the reel accommodating portion 21 to the reinforcing bar binding machine 1A. .. The second wire guiding portion 24 guides the feeding path of the wire W drawn by the wire drawing mechanism 22 in the direction of the roller 24b by the roller 24a and in the direction of the reinforcing bar binding machine 1A by the roller 24c.

The second wire guiding portion 24 includes a wire slack absorbing mechanism 24d that absorbs the slack of the wire W. The wire slack absorbing mechanism 24d downwards along the direction in which the slack absorbing roller 24e provided between the rollers 24a and 24b and the slack absorbing roller 24e intersect with respect to the wire W between the rollers 24a and 24b. A spring 24f for urging is provided.

In the second wire guiding portion 24, the slack absorbing roller 24e contacts the wire W between the rollers 24a and 24b from the upper side opposite to the side where the rollers 24a and 24b are in contact. The slack absorbing roller 24e is urged downward by the spring 24f along the direction intersecting the wire W between the roller 24a and the roller 24b, so that the urging force of the spring 24f and the tension applied to the wire W are exerted. The balance defines the position in the height direction.

<Operation example of the binding equipment of the fourth embodiment>
15A to 15F are operation explanatory views showing an example of the operation of feeding the wire by the wire feeding device, and next, the operation of feeding the wire by the wire feeding mechanism 2D will be described. The operation of binding the reinforcing bars S in the reinforcing bar binding machine 1A is the same as the operation described in the flowchart of FIG. Further, the flow of the operation of feeding the wire by the wire feeding mechanism 2D is the same as the operation described in the flowchart of FIG.

The wire feeding mechanism 2D feeds the wire W in the reverse direction in step SA4 in the binding operation of the reinforcing bar binding machine 1A described above, and then feeds the wire W in the forward direction in step SA3 in the next binding operation. In addition, an operation of pulling out a predetermined amount of wire W from the reel 20 is performed.

As described above, by winding the wire W around the reinforcing bar S with the reinforcing bar binding machine 1A and sending the wire W in the opposite direction, as shown in FIG. 15A, the reinforcing bar binding machine 1A and the second wire guiding portion 24 The wire W loosens between them.

As a result, the tension applied to the wire W in the wire feeding mechanism 2D is reduced. When the tension applied to the wire W decreases, the urging force of the spring 24f becomes larger than the tension applied to the wire W, and the slack absorbing roller 24e is along the direction in which the slack absorbing roller 24e intersects the wire W between the roller 24a and the roller 24b. It descends in the direction of arrow D1.

When the slack absorbing roller 24e descends, the wire W between the roller 24a and the roller 24b is pulled downward. As a result, as shown in steps SC1 and 15B of FIG. 12, the surplus of the loose wire W is drawn between the rollers 24a and the rollers 24b of the second wire guiding portion 24 as shown by the arrow R1. Is done.

In step SC2 of FIG. 12, the control unit 110A controls the drive unit 22b to rotate the motor 22c in the normal direction, and lowers the pull-out roller 22a from the upper limit position P1 in the direction of the arrow Do. In the wire pulling mechanism 22, the pulling roller 22a is at the upper limit position P1 along the direction intersecting the wire W between the roller 23a of the first wire guiding portion 23 and the roller 24a of the second wire guiding portion 24. It descends from to the lower limit position P2.

When the pull-out roller 22a starts descending from the upper limit position P1, the wire W between the roller 23a of the first wire guiding portion 23 and the roller 24a of the second wire guiding portion 24 is pulled downward to pull the reel 20 downward. The wire W between the wire guiding portion 23 and the first wire guiding portion 23 and the wire W between the reinforcing bar binding machine 1A and the second wire guiding portion 24 are the first wire guiding portion 23 and the second wire guiding portion. It is pulled between 24 and 24.

As a result, the tension applied to the wire W in the wire feeding mechanism 2D increases. When the tension applied to the wire W increases, the urging force of the spring 24f becomes relatively smaller than the tension applied to the wire W, and the direction in which the slack absorbing roller 24e intersects the wire W between the roller 24a and the roller 24b. Ascends in the direction of arrow U1 along. Therefore, first, as shown in step SC3 and FIG. 15C of FIG. 12, the wire W between the roller 24a and the roller 24b of the second wire guiding portion 24 in which the slack is absorbed by the wire slack absorbing mechanism 24d is first formed. As shown by the arrow R1, it is drawn between the roller 23a of the first wire guiding portion 23 and the roller 24a of the second wire guiding portion 24.

When the urging force of the spring 24f and the tension applied to the wire W are balanced, the wire W is pulled out from the reel 20 housed in the reel accommodating portion 21 as shown by the arrow F1 in steps SC4 and 15D of FIG. It is sent between the roller 23a of the wire guiding portion 23 and the roller 24a of the second wire guiding portion 24. When the pull-out roller 22a moves to the lower limit position P2, the excess wire W in the wire W feeding path 26 between the reinforcing bar binding machine 1A and the second wire guiding portion 24 where the slack is absorbed by the wire slack absorbing mechanism 24d. The movement amount of the drawing roller 22a is set so that the amount of wire W required for binding the reinforcing bar S by the reinforcing bar binding machine 1A can be pulled out from the reel 20.

When the control unit 110A detects that the pull-out roller 22a has moved to the lower limit position P2 in step SC5 of FIG. 12, the lower limit detection sensor 25b switches the rotation direction of the motor 22c from forward rotation to reverse rotation, and the step of FIG. 12 As shown in SC6 and FIG. 15E, the drawer roller 22a is raised in the direction of the arrow Up. When the upper limit detection sensor 25a detects that the pull-out roller 22a has moved to the upper limit position P1 in step SC7 of FIG. 12, the control unit 110A stops the rotation direction of the motor 22c in step SC8. As a result, the amount of wire W required for binding the reinforcing bar S with the reinforcing bar binding machine 1A is loosened between the roller 23a of the first wire guiding portion 23 and the roller 24a of the second wire guiding portion 24. It will be in a state.

In the next binding operation executed by the reinforcing bar binding machine 1A, the roller 23a of the first wire guiding portion 23 and the second wire guiding are performed by the operation of sending the wire W in the positive direction in step SA3, as shown in FIG. 15F. The loose wire W with the roller 24a of the portion 24 is sent in the direction of the arrow F2.

As a result, also in the wire feeding mechanism 2D, the wire W is wound around the reinforcing bar S by providing the wire slack absorbing mechanism 24d in the second wire guiding portion 24, so that the wire W is fed in the reverse direction by the reinforcing bar binding machine 1A. Then, the slack of the wire W generated in the feeding path 26 of the wire W between the reinforcing bar binding machine 1A and the second wire guiding portion 24 can be absorbed by the wire slack absorbing mechanism 24d and eliminated. Further, the amount of wire W required for binding the reinforcing bar S by the reinforcing bar binding machine 1A can be pulled out from the reel 20 by the operation of pulling out the wire W by the wire drawing mechanism 22.

<Structure example of binding equipment according to the fifth embodiment>
FIG. 16 is a side view of a main part showing an example of the bundling equipment according to the fifth embodiment.

The binding equipment 100E of the fifth embodiment includes a reinforcing bar binding machine 1A for binding the reinforcing bar S, which is a binding object, with a wire W, and a wire feeding mechanism 2E for sending the wire W to the reinforcing bar binding machine 1A. In the binding equipment 100E of the fifth embodiment, the reinforcing bar binding machine 1A may be the same as the binding equipment 100A of the first embodiment. Further, in the wire feeding mechanism 2E, the first wire guiding portion 23 and the second wire guiding portion 24 are the same as the binding equipment 100A of the first embodiment or the binding equipment 100B of the second embodiment. Is fine.

The wire pulling mechanism 22 sets the positions of the pulling roller 22a that pulls the wire W between the first wire guiding portion 23 and the second wire guiding portion 24 and the pulling roller 22a to the first wire guiding portion 23 and the first wire guiding portion 23. The drive unit 22b is provided so as to move in a direction intersecting the wire W between the wire guide unit 24 and the wire guide unit 2.

In the wire pulling mechanism 22, the pulling roller 22a at the upper limit position P1 has the rollers 23a and 24a on the wire W between the roller 23a of the first wire guiding portion 23 and the roller 24a of the second wire guiding portion 24. Contact from the upper side, which is the opposite side to the contact side. The wire pulling mechanism 22 has a lower limit from the upper limit position in a direction in which the pulling roller 22a intersects the wire W between the roller 23a of the first wire guiding portion 23 and the roller 24a of the second wire guiding portion 24. Move to position.

The wire pull-out mechanism 22 includes a wire slack absorbing mechanism 22d that absorbs the slack of the wire W. In the wire slack absorbing mechanism 22d, the drawing roller 22a constitutes a slack absorbing roller, and the drawing roller 22a is used as a wire W between the roller 23a of the first wire guiding portion 23 and the roller 24a of the second wire guiding portion 24. A spring 22f for urging downward along the direction of intersection with respect to the spring 22f is provided.

In the wire pulling mechanism 22, the pulling roller 22a is urged downward by the spring 22f along the direction in which the pulling roller 22a intersects the wire W between the roller 23a and the roller 24a, so that the urging force of the spring 22f and the wire are urged. The position in the height direction is defined by the balance of the tension applied to W.

<Operation example of the binding equipment of the fifth embodiment>
17A to 17G are operation explanatory views showing an example of the operation of feeding the wire by the wire feeding device, and next, the operation of feeding the wire by the wire feeding mechanism 2E will be described. The operation of binding the reinforcing bars S in the reinforcing bar binding machine 1A is the same as the operation described in the flowchart of FIG. Further, the flow of the operation of feeding the wire by the wire feeding mechanism 2E is the same as the operation described in the flowchart of FIG.

The wire feeding mechanism 2E feeds the wire W in the reverse direction in step SA4 in the binding operation of the reinforcing bar binding machine 1A described above, and then feeds the wire W in the forward direction in step SA3 in the next binding operation. In addition, an operation of pulling out a predetermined amount of wire W from the reel 20 is performed.

As described above, by winding the wire W around the reinforcing bar S with the reinforcing bar binding machine 1A and sending the wire W in the opposite direction, as shown in FIG. 17A, the reinforcing bar binding machine 1A and the second wire guiding portion 24 The wire W loosens between them.

As a result, the tension applied to the wire W in the wire feeding mechanism 2E is reduced. When the tension applied to the wire W decreases, the urging force of the spring 22f becomes larger than the tension applied to the wire W, and the pull-out roller 22a becomes the roller 23a of the first wire guiding portion 23 and the roller 24a of the second wire guiding portion 24. It descends in the direction of the arrow Do along the direction intersecting the wire W between and.

When the pull-out roller 22a is lowered, the wire W between the roller 23a and the roller 24a is pulled downward. As a result, as shown in steps SC1 and 17B of FIG. 12, the surplus of the loose wire W is drawn between the roller 23a and the roller 24a as shown by the arrow R1.

In step SC2 of FIG. 12, the control unit 110A controls the drive unit 22b to rotate the motor 22c in the normal direction, and lowers the pull-out roller 22a in the direction of the arrow Do. When the pull-out roller 22a starts descending by driving the drive unit 22b, the tension applied to the wire W in the wire feeding mechanism 2E increases. When the tension applied to the wire W increases, the urging force of the spring 22f becomes relatively smaller than the tension applied to the wire W, and as shown in FIG. 17C, the spring 22f is stretched against the urging force.

When the pull-out roller 22a is further lowered by the drive of the drive unit 22b, the wire W is pulled out from the reel 20 housed in the reel housing unit 21 as shown by the arrow F1 in steps SC4 and 17D of FIG. It is sent between the roller 23a of the wire guiding portion 23 and the roller 24a of the second wire guiding portion 24. When the pull-out roller 22a moves to the lower limit position, the excess wire W in the wire W feeding path 26 between the reinforcing bar binding machine 1A and the second wire guiding portion 24 where the slack is absorbed by the wire slack absorbing mechanism 22d is removed. At the same time, the movement amount of the drawing roller 22a is set so that the amount of wire W required for binding the reinforcing bar S by the reinforcing bar binding machine 1A can be pulled out from the reel 20.

When the control unit 110A detects that the pull-out roller 22a has moved to the lower limit position in step SC5 of FIG. 12, the control unit 110A switches the rotation direction of the motor 22c from forward rotation to reverse rotation, as shown in steps SC6 and 17E of FIG. In addition, the drawer roller 22a is raised in the direction of the arrow Up. When the control unit 110A detects that the pull-out roller 22a has risen to the upper limit position in step SC7 of FIG. 12, the control unit 110A stops the rotation direction of the motor 22c in step SC8. As a result, the amount of wire W required for binding the reinforcing bar S with the reinforcing bar binding machine 1A is loosened between the roller 23a of the first wire guiding portion 23 and the roller 24a of the second wire guiding portion 24. It will be in a state. Further, since the tension of the wire W is not applied to the pull-out roller 22a, the pull-out roller 22a is in a state of being lowered from the upper limit position by the expansion and contraction of the spring 22f due to the urging force of the spring 22f.

In the next binding operation executed by the reinforcing bar binding machine 1A, the roller 23a of the first wire guiding portion 23 and the second wire guiding are performed by the operation of sending the wire W in the positive direction in step SA3, as shown in FIG. 15F. The loose wire W with the roller 24a of the portion 24 is sent in the direction of the arrow F2.

When the loose wire W is sent in the direction of arrow F2 between the roller 23a of the first wire guiding portion 23 and the roller 24a of the second wire guiding portion 24, the expansion and contraction of the spring 22f and the descending pull-out roller The wire W comes into contact with 22a.

When the loose wire W is further sent in the direction of the arrow F2 between the roller 23a of the first wire guiding portion 23 and the roller 24a of the second wire guiding portion 24, it hangs on the wire W as shown in FIG. 17G. The tension increases, the urging force of the spring 22f becomes relatively smaller than the tension applied to the wire W, the spring 22f is stretched against the urging force, and the pull-out roller 22a rises to the upper limit position.

As a result, also in the wire feeding mechanism 2E, the wire pulling mechanism 22 is provided with the wire slack absorbing mechanism 22d, so that the wire W is wound around the reinforcing bar S. The slack of the wire W generated between the binding machine 1A and the second wire guiding portion 24 can be absorbed and eliminated by the wire slack absorbing mechanism 22d. Further, the amount of wire W required for binding the reinforcing bar S by the reinforcing bar binding machine 1A can be pulled out from the reel 20 by the operation of pulling out the wire W by the wire drawing mechanism 22.

<Structure example of binding equipment according to the sixth embodiment>
FIG. 18A is a side view showing an example of the binding equipment of the sixth embodiment, and FIG. 18B is a perspective view showing an example of the binding equipment of the sixth embodiment.

The binding equipment 100F of the sixth embodiment includes a reinforcing bar binding machine 1A that binds the reinforcing bar S, which is a binding object, with a wire W, and a wire feeding mechanism 2F that sends the wire W to the reinforcing bar binding machine 1A. In the binding equipment 100F of the sixth embodiment, the reinforcing bar binding machine 1A may be the same as the binding equipment 100A of the first embodiment. Further, in the wire feeding mechanism 2F, the first wire guiding portion 23 may be the same as the binding equipment 100A of the first embodiment.

The second wire guiding portion 24 includes a wire feed restricting roller 24 g that regulates the feed of the wire W in a predetermined direction. The wire feed restricting roller 24 g is an example of a wire feed restricting member, which allows the wire W to be fed in the positive direction from the wire feed mechanism 2F in the direction of the reinforcing bar binding machine 1A, and reverses from the reinforcing bar binding machine 1A in the direction of the wire feeding mechanism 2F. The feed of the wire W in the direction is restricted. As an example, the wire feed restricting roller 24g is provided with a non-rotating member so as to be detachable from the roller 24a. 24 g is separated to allow the wire W to be fed in the positive direction. On the other hand, in the operation of feeding the wire W in the reverse direction by the reinforcing bar binding machine 1A and the operation of pulling out the wire W from the reel 20 by the wire feeding mechanism 2F, the wire W is inserted between the roller 24a and the wire feeding restricting roller 24g. It is pinched to regulate the feeding of the wire W in the opposite direction. Further, as another example, the wire feed restricting roller 24g is supported by a support mechanism such as a one-way bearing that allows rotation in one direction and restricts rotation in the other direction, and the wire W is forwarded in the positive direction. By rotating according to the feed, the wire W is allowed to be fed in the positive direction. On the other hand, the wire W is non-rotated with respect to the reverse feed of the wire W, and the reverse feed of the wire W is restricted.

The wire feed mechanism 2F includes a feed amount detection sensor 120 that detects the feed amount of the wire W. The feed amount detection sensor 120 is an example of the feed amount detecting means, and detects the feed amount of the wire W fed in the forward direction and the reverse direction. In the configuration in which the wire feed mechanism 2F feeds two wires W, the feed amount detection sensor 120 is configured to be able to detect the feed amount of each wire W. The feed amount detection sensor 120 is realized by a method of detecting the rotation amount of the member by using a member that rotates according to the movement of the wire W, a method of detecting the weight of the wire W returned by the reverse feed, and the like. Will be done.

FIG. 19 is a block diagram showing an example of the control function of the bundling equipment. In the binding equipment 100F, the control unit 110B controls the motor 80 and the feed motor 31 of the reinforcing bar binding machine 1A. The control unit 110B controls the position of the sleeve 71 shown in FIG. 1 and the like by controlling the rotation amount of the motor 80, the operation of locking the wire W by the wire locking body 70, and the wire W by the cutting unit 6A. The operation of cutting and the operation of twisting the wire locking body 70 wire W are performed.

Further, the control unit 110B controls the forward rotation and the reverse rotation of the feed motor 31 to feed the wire W in the forward direction, thereby winding the wire W around the reinforcing bar S and sending the wire W in the reverse direction. Then, the operation of winding the wire W around the reinforcing bar S is performed.

Further, the control unit 110B detects the feed amount of the wire W back-fed by the reinforcing bar binding machine 1A with the feed amount detection sensor 120, and the amount of wire W required for binding the reinforcing bars S by the reinforcing bar binding machine 1A. The amount of movement for moving (lowering) the pull-out roller 22a to the pull-out target lowering position is calculated.

Then, the control unit 110B controls the motor 22c of the drive unit 22b of the wire feeding mechanism 2F, and the position of the pull-out roller 22a detected by the upper limit detection sensor 25a and the movement amount for lowering the pull-out roller 22a to the target lowering position. Based on the above, the forward rotation and reverse rotation of the motor 22c are controlled to lower or raise the pull-out roller 22a.

<Operation example of the binding equipment of the sixth embodiment>
18C to 18G are operation explanatory views showing an example of an operation of feeding a wire by a wire feeding device, and FIG. 20 is a flowchart showing an example of an operation of feeding a wire by a wire feeding device. Next, a wire feeding mechanism 2F is used. The operation of feeding the wire will be described. The operation of binding the reinforcing bars S in the reinforcing bar binding machine 1A is the same as the operation described in the flowchart of FIG.

In the binding operation of the reinforcing bar binding machine 1A described above, the wire feeding mechanism 2F feeds the wire W in the reverse direction in step SA4 until the wire W is fed in the forward direction in step SA3 in the next binding operation. In addition, an operation of pulling out a predetermined amount of wire W from the reel 20 is performed.

In order to wind the wire W around the reinforcing bar S by the reinforcing bar binding machine 1A, in the operation of feeding the wire W in the opposite direction, as shown in FIG. 18C, the wire W is sandwiched between the roller 24a and the wire feeding restricting roller 24g. Restricts the feeding of wire W in the opposite direction. When the wire W is sent in the opposite direction by the operation of winding the wire W around the reinforcing bar S by the reinforcing bar binding machine 1A, the control unit 110B feeds the wire W back-fed by the reinforcing bar binding machine 1A in step SD1 of FIG. The amount is detected by the feed amount detection sensor 120.

Further, in step SD2, the control unit 110B calculates the shortage of the amount of wire W required for binding the reinforcing bars S with the reinforcing bar binding machine 1A. Then, in step SD3, the control unit 110B moves (descends) the pulling roller 22a to the target lowering position P21 for pulling out the wire W in an amount necessary for binding the reinforcing bars S with the reinforcing bar binding machine 1A. The calculation is performed, and the rotation amount of the motor 22c for moving (lowering) the pull-out roller 22a to the target lowering position P21 is calculated. The target lowering position P21 changes according to the feed amount of the wire W reversely fed by the reinforcing bar binding machine 1A. That is, the amount of wire W required to bind the reinforcing bar S with the reinforcing bar binding machine 1A is the sum of the feeding amount of the wire W back-fed by the reinforcing bar binding machine 1A and the amount of the wire W drawn out from the reel 20. Will be. Therefore, when the feed amount of the wire W reversely fed is small, the target lowering position P21 is lowered in order to increase the amount of the wire W drawn out from the reel 20. On the other hand, when the feed amount of the wire W reversely fed is large, the target lowering position P21 is raised in order to reduce the amount of the wire W drawn from the reel 20.

In order to pull out the wire W from the reel 20 by the wire feeding mechanism 2F, the control unit 110B controls the drive unit 22b to rotate the motor 22c in the normal direction in step SD4 of FIG. Lower in the direction. In the operation of pulling out the wire W from the reel 20 by the wire feeding mechanism 2F, as shown in FIGS. 18D and 18E, the wire W is sandwiched between the roller 24a and the wire feeding restricting roller 24g in the opposite direction of the wire W. Regulate the sending of. In the wire pulling mechanism 22, the pulling roller 22a is at the upper limit position P1 along the direction intersecting the wire W between the roller 23a of the first wire guiding portion 23 and the roller 24a of the second wire guiding portion 24. Descend from.

When the pull-out roller 22a starts descending from the upper limit position P1, the wire W between the roller 23a of the first wire guiding portion 23 and the roller 24a of the second wire guiding portion 24 is pulled downward. As a result, the wire W between the reel 20 and the first wire guiding portion 23 and the wire W between the reinforcing bar binding machine 1A and the second wire guiding portion 24 become the first wire guiding portion 23 and the first wire guiding portion 23. A pulling force is applied between the wire guiding portion 24 and the wire guiding portion 24 of 2.

In the wire guiding portion 24, the wire W is sandwiched between the roller 24a and the wire feed restricting roller 24g, and the wire W is restricted from being fed in the opposite direction. As a result, the excess wire W loosened between the reinforcing bar binding machine 1A and the second wire guiding portion 24 due to the operation of pulling the wire W by the pulling roller 22a of the wire pulling mechanism 22 is the first wire guiding portion. It is not drawn between the roller 23a of the 23 and the roller 24a of the second wire guiding portion 24.

On the other hand, since the wire W between the reinforcing bar binding machine 1A and the second wire guiding portion 24 cannot be sent, the wire W between the reel 20 and the first wire guiding portion 23 is the first. It is drawn between the roller 23a of the wire guiding portion 23 and the roller 24a of the second wire guiding portion 24.

As a result, the wire W is pulled out from the reel 20 accommodated in the reel accommodating portion 21 in step SD5 and is sent between the roller 23a of the first wire guiding portion 23 and the roller 24a of the second wire guiding portion 24. ..

When the pull-out roller 22a descends to the target lowering position P21, the feed amount of the wire W reversely fed by the reinforcing bar binding machine 1A, that is, the feeding path of the wire W between the reinforcing bar binding machine 1A and the second wire guiding portion 24. The wire W is the reel 20 so that the sum of the surplus of the wire W loosened at 26 and the amount of the wire W drawn from the reel 20 is the amount required for binding the reinforcing bars S with the reinforcing bar binding machine 1. Is drawn from.

As shown in FIG. 18E, when the control unit 110B detects that the pull-out roller 22a has moved to the target lowering position P21 in step SD6 of FIG. 20 from the rotation amount of the motor 22c or the like, the control unit 110B corrects the rotation direction of the motor 22c. The rotation is switched to the reverse rotation, and the drawer roller 22a is raised in step SD7. As shown in FIG. 18F, when the control unit 110B detects that the pull-out roller 22a has moved to the upper limit position P1 in step SD8 by the upper limit detection sensor 25a, the control unit 110B stops the rotation direction of the motor 22c in step SD9. As a result, the feeding path 26 of the wire W between the reinforcing bar binding machine 1A and the second wire guiding portion 24, and the roller 23a of the first wire guiding portion 23 and the roller 24a of the second wire guiding portion 24 In the meantime, the amount of wire W required to bind the reinforcing bar S with the reinforcing bar binding machine 1A is in a loosened state.

In the next binding operation executed by the reinforcing bar binding machine 1A, in the operation of feeding the wire W in the positive direction by the reinforcing bar binding machine 1A, as shown in FIG. 18G, the wire feeding restricting roller 24g is separated from the roller 24a. Allows the wire W to be fed in the positive direction. Therefore, due to the operation of feeding the wire W in the positive direction in step SA3 of FIG. 5, the wire W loosened in the feeding path 26 of the wire W between the reinforcing bar binding machine 1A and the second wire guiding portion 24, and the first wire W. The loose wire W is sent in the direction of arrow F2 between the roller 23a of the wire guiding portion 23 and the roller 24a of the second wire guiding portion 24.

As a result, in the wire feed mechanism 2F, the feed amount of the wire W is detected by the feed amount detection sensor 120, and the wire W is pulled out to the target lowering position P21 in which the amount required for binding the wire S by the reinforcing bar binding machine 1A. Since the wire W is wound around the reinforcing bar S by moving (lowering) the pull-out roller 22a, the wire W is sent in the opposite direction by the reinforcing bar binding machine 1A, and the reinforcing bar binding machine 1A and the second wire guiding portion 24 are connected to each other. It is possible to eliminate the slack of the wire W that occurs in the feeding path 26 of the wire W between them. Further, it is necessary for the reinforcing bar binding machine 1A to bind the reinforcing bar S according to the surplus due to the slackening of the wire W generated in the feeding path 26 of the wire W between the reinforcing bar binding machine 1A and the second wire guiding portion 24. A large amount of wire W can be pulled out from the reel 20 by the operation of pulling out the wire W by the wire pulling mechanism 22.

The configuration for pulling out the wire W from the reel 20 may include a configuration including a gear or a roller that rotates by sandwiching the wire W whose rotation can be controlled on the feed path of the wire W, or a configuration for driving the reel 20.

<Modification example of binding equipment>
As shown in FIG. 1A and the like, the reinforcing bar binding machine 1A includes a main body portion 10A and a handle portion 11A, and a battery 15A can be attached to and detached from the handle portion 11A when applying a form that the operator holds and uses in his / her hand. It is a configuration that can be attached to. On the other hand, as shown in FIG. 11A and the like, the battery may not be provided in the main body 10A, and power may be supplied from the outside. Further, as shown in FIG. 11A or the like, the reinforcing bar binding machine 1A may be attached to the tip portion of the robot hand 114A that can be displaced in the vertical direction, the horizontal direction, and the rotational direction, and the robot hand 114A may be attached to the elevating mechanism 111A. ..

FIG. 21 is a perspective view showing a modified example of the binding equipment of each embodiment. FIG. 21 shows a modified example of the binding equipment 100B of the second embodiment as an example of the wire feeding portion. In the binding equipment of each embodiment, the reinforcing bar binding machine 1A is provided with the wire feeding unit 3A, but the wire feeding unit 3A having the configuration as shown in FIG. 3A may be provided outside the reinforcing bar binding machine 1A. good.

22A to 22C are perspective views showing other modifications of the bundling equipment of each embodiment. 22A to 22C show a modification of the binding equipment 100A of the first embodiment as an example of the reel accommodating portion.

In FIG. 22A, since the reel accommodating portion 21 binds the reinforcing bars S with the two wires W in the reinforcing bar binding machine 1A, the two reels 20 are arranged side by side with the axis of rotation oriented sideways with respect to the vertical direction. Be housed. Further, in FIG. 22B, the two reels 20 are housed side by side vertically with the axis of rotation oriented sideways with respect to the vertical direction. Further, in FIG. 22C, the two reels 20 are housed side by side with the axis oriented vertically along the vertical direction. As shown in FIG. 21C, the reel 20 does not have to be rotatable when the axis is oriented vertically along the vertical direction.

FIG. 23 is a perspective view showing still another modification of the bundling equipment of each embodiment. FIG. 23 shows, as an example, a modified example of the binding equipment 100B of the second embodiment. In the binding equipment of each embodiment, the reinforcing bar binding machine 1A is configured to bind the reinforcing bar S with two wires W sent in parallel, but the reinforcing bar binding machine 1A binds the reinforcing bar S with one wire W. It may be configured. In this case, in the wire feeding mechanism 2B, the reel accommodating portion 21 accommodates one reel 20, and the wire drawing mechanism 22 draws out one wire W, so that the first wire guiding portion 23 and the second wire guiding portion 23 and the second wire are drawn out. The wire guiding portion 24 is configured to guide one wire W.

<Modification example of wire feeding mechanism>
The wire feeding mechanism 2A has a guide portion that regulates the position of each wire W along the direction in which the two wires W are parallel to each other, in the vicinity of the first wire guiding portion 23, the first wire guiding portion 23, and the second. It may be provided at any one place, a plurality of places, or all places near the wire guide portion 24, the second wire guide portion 24, and the vicinity of the reinforcing bar binding machine 1A.

24A is a side view of the binding equipment showing a modified example of the wire feeding mechanism of the present embodiment, FIG. 24B is a top view of the binding equipment showing a modified example of the wire feeding mechanism of the present embodiment, and FIG. 24C is a top view of the binding equipment. It is a top view of the main part of the bundling equipment which shows the modification of the wire feed mechanism of this embodiment. FIG. 24C shows the first wire guiding portion 23.

The wire feeding mechanism 2G of the modified example is provided with the above-mentioned guide portion 27 that regulates the position of each wire W along the direction in which the two wires W are parallel to each other in the wire drawing mechanism 22, and the two wires W are arranged in parallel. The first wire guiding portion 23 is provided with another guide portion 28 that regulates the position of each wire W along the direction.

The guide portion 28 is provided in the first wire guiding portion 23 on the wire pulling mechanism 22 side and the roller 23b side of the roller 23a, and on the reel accommodating portion 21 side and the roller 23a side of the roller 23b, respectively. That is, the guide portion 28 is provided before and after the roller 23a of the first wire guiding portion 23 and before and after the roller 23b along the feeding direction of the wire W.

The guide portion 28 is provided between the first guide portion 28a provided on the outside of each wire W and the two wires W in the parallel direction of the two wires W (W1, W2). The guide portion 28b of 2 is provided.

The first guide portion 28a extends from the base portion 112A along the moving direction of the pull-out roller 22a, and the second guide portion 28b extends from the base portion 112A along the moving direction of the pull-out roller 22a.

The guide portion 28 extends along the moving direction of the pull-out roller 22a to one side of the second guide portion 28b along the direction in which the two wires W are parallel, and at least one wire W passes through the guide portion 28. One of the first guide portions 28a is provided so as to face each other with a possible gap. In the guide portion 28, the guide portion 28c is formed in the gap between the first guide portion 28a and the second guide portion 28b.

Further, the guide portion 28 extends to the other side of the second guide portion 28b along the direction in which the two wires W are parallel to each other along the moving direction of the pull-out roller 22a, and at least one wire W is formed. The other first guide portion 28a is provided so as to face each other with a gap through which the guide can pass. In the guide portion 28, the guide portion 28c is formed in the gap between the other first guide portion 28a and the second guide portion 28b.

As a result, in the guide portion 28, each wire W has two wires W in the range in which the pull-out roller 22a moves from the upper limit position to the lower limit position between the wire pull-out mechanism 22 and the first wire guide portion 23. Suppresses the movement of wires in parallel. Further, the guide portion 28 has a direction in which the two wires W are arranged in parallel between the rollers 23a and the rollers 23b of the first wire guiding portion 23 and between the rollers 23b and the reel accommodating portion 21. Suppress moving to.

Therefore, even in the first wire guiding portion 23, the movement of the two wires W in the parallel direction is suppressed. Therefore, it is possible to prevent one wire W from being entangled due to twisting or the like. Further, it is possible to prevent the two wires W from being entangled by moving in a direction approaching each other and being twisted. Further, it is suppressed that the two wires W move in a direction away from each other and the two wires W are entangled between the adjacent binding equipment 100A.

The guide portion 28 may be composed of, for example, a member that supports the rollers 23a and the like in the first wire guiding portion 23. The first wire guiding portion 23 has a form in which two members supporting the rollers 23a and the like extend outward along the direction in which the two wires W are parallel to each other along the moving direction of the drawing roller 22a. The guide portion 28 may be configured by the two members.

25A is a side view of the binding equipment showing another modification of the wire feeding mechanism of the present embodiment, and FIG. 25B is a top view of the binding equipment showing another modification of the wire feeding mechanism of the present embodiment. FIG. 25C is a top view of a main part of the binding equipment showing another modification of the wire feeding mechanism of the present embodiment. FIG. 25C shows the second wire guiding portion 24.

In the wire feeding mechanism 2H of another modification, the wire drawing mechanism 22 is provided with the above-mentioned guide portion 27 that regulates the position of each wire W along the direction in which the two wires W are parallel to each other, and the two wires W are provided. The other guide portion 28 described above that regulates the position of each wire W along the parallel direction is provided in the first wire guide portion 23. Further, the wire feeding mechanism 2H is provided with yet another guide portion 29 that regulates the position of each wire W along the direction in which the two wires W are parallel to each other in the second wire guiding portion 24.

The guide portion 29 is provided in the second wire guiding portion 24 on the wire pulling mechanism 22 side of the roller 24a, between the second wire guiding portion 24 and the reinforcing bar binding machine 1A, in the vicinity of the reinforcing bar binding machine 1A, respectively. .. That is, the guide portion 29 is provided before and after the roller 24a of the second wire guiding portion 24 along the feeding direction of the wire W.

The guide portion 29 is provided between the first guide portion 29a provided on the outside of each wire W and the two wires W in the parallel direction of the two wires W (W1, W2). The guide portion 29b of 2 is provided.

The first guide portion 29a extends from the base portion 112A along the moving direction of the pull-out roller 22a, and the second guide portion 29b extends from the base portion 112A along the moving direction of the pull-out roller 22a.

The guide portion 29 extends along the moving direction of the pull-out roller 22a to one side of the second guide portion 29b along the direction in which the two wires W are parallel, and at least one wire W passes through the guide portion 29. One of the first guide portions 29a is provided so as to face each other with a possible gap. In the guide portion 29, the guide portion 29c is formed in the gap between the first guide portion 29a and the second guide portion 29b.

Further, the guide portion 29 extends to the other side of the second guide portion 29b along the direction in which the two wires W are parallel to each other along the moving direction of the pull-out roller 22a, and at least one wire W is formed. The other first guide portion 29a is provided so as to face each other with a gap through which the guide can pass. In the guide portion 29, the guide portion 29c is formed in the gap between the other first guide portion 29a and the second guide portion 29b.

As a result, in the guide portion 29, each wire W has two wires W in the range in which the pull-out roller 22a moves from the upper limit position to the lower limit position between the wire pull-out mechanism 22 and the second wire guide portion 24. Suppresses the movement of wires in parallel. Further, the guide portion 29 suppresses each wire W from moving in the direction in which the two wires W are in parallel between the second wire guiding portion 24 and the reinforcing bar binding machine 1A.

Therefore, even in the second wire guiding portion 24, the movement of the two wires W in the parallel direction is suppressed. Therefore, it is possible to prevent one wire W from being entangled due to twisting or the like. Further, it is possible to prevent the two wires W from being entangled by moving in a direction approaching each other and being twisted. Further, it is suppressed that the two wires W move in a direction away from each other and the two wires W are entangled between the adjacent binding equipment 100A.

The guide portion 29 may be composed of, for example, a member that supports the rollers 24a and the like in the second wire guiding portion 24. The second wire guiding portion 24 has a form in which two members supporting the rollers 24a and the like extend outward along the direction in which the two wires W are parallel to each other along the moving direction of the drawing roller 22a. The guide portion 29 may be configured by the two members.

26A and 26B are side views of the binding equipment showing another modification of the wire feeding mechanism of the present embodiment, and FIG. 26C is a binding equipment showing another modification of the wire feeding mechanism of the present embodiment. It is a top view of a main part. FIG. 26C shows the first wire guiding portion 23.
Is.

The wire feeding mechanism 2H may have a configuration in which a guide portion 29 between the second wire guiding portion 24 and the reinforcing bar binding machine 1A is provided in the vicinity of the second wire guiding portion 24 as shown in FIG. 26A. Further, the wire feeding mechanism 2H is shown in FIG. 26B as a guide portion between the wire pulling mechanism 22 and the first wire guiding portion 23, and a guide portion between the wire pulling mechanism 22 and the second wire guiding portion 24. As shown, the guide portion 27 in the vicinity of the wire pull-out mechanism 22 is not provided, but the guide portion 28 is provided in the vicinity of the first wire guide portion 23 between the wire pull-out mechanism 22 and the first wire guide portion 23. A guide portion 29 may be provided between the wire pull-out mechanism 22 and the second wire guiding portion 24 in the vicinity of the second wire guiding portion 24. Further, the guide portion 27 in the vicinity of the wire pull-out mechanism 22 may not be provided, and the guide portion may be provided in either the vicinity of the first wire guiding portion 23 or the vicinity of the second wire guiding portion 24.

In the wire feeding mechanism 2H or the like, the first wire guiding portion 23 has a configuration in which the wire W is guided by a columnar roller. Instead of this, as provided in FIG. 26C, the wire W may be guided by a pulley 23h having flange portions 23g protruding in the circumferential direction on both sides in the axial direction. The pulley 23h can prevent the two wires W from moving in the parallel direction by the flange portion 23g.

27A is a top view of the binding equipment showing still another modification of the wire feeding mechanism of the present embodiment, and FIGS. 27B to 27D show binding of still another modification of the wire feeding mechanism of the present embodiment. It is a top view of the main part of the equipment. 27B shows the first wire guiding portion 23, FIG. 27C shows the wire pulling mechanism 22 and the second wire guiding portion 24, and FIG. 27D shows the vicinity of the reinforcing bar binding machine 1A.

In the wire feeding mechanism 2I of another modification, the feeding paths of the two wires W drawn from the two reels 20 housed in the reel accommodating portion 21 are aggregated in the same path by the first wire guiding portion 23. , The second wire guide portion 24 and the reinforcing bar binding machine 1A are divided into different routes.

The wire feeding mechanism 2I is provided with a guide portion 27 for regulating the position of each wire W along the direction in which the two wires W are parallel to the wire drawing mechanism 22, and the other guide portion 28 is provided with the first wire guiding portion 23. Further, other guide portions 29D and 29E are provided in the second wire guiding portion 24.

The guide portion 28 is provided in the first wire guiding portion 23 on the wire pulling mechanism 22 side and the roller 23b side of the roller 23a, and on the reel accommodating portion 21 side and the roller 23a side of the roller 23b, respectively. That is, the guide portion 28 is provided before and after the roller 23a of the first wire guiding portion 23 and before and after the roller 23b along the feeding direction of the wire W.

The guide portion 28 includes a first guide portion 28a provided on the outside of each wire W with respect to the parallel direction of the two wires W (W1, W2). The first guide portion 28a extends from the base portion 112A along the moving direction of the pull-out roller 22a.

The guide portions 28 are provided so that the pair of first guide portions 28a extend along the moving direction of the pull-out roller 22a and face each other with a gap through which at least two wires W can pass. In the guide portion 28, the guide portion 28c is formed in the gap between the pair of first guide portions 28a. The guide portion 28 may be integrally composed of a first guide portion 28a between the roller 23a and the roller 23 and a first guide portion 28a on the reel accommodating portion 21 side with respect to the roller 23b.

As a result, in the guide portion 28, each wire W has two wires W in the range in which the pull-out roller 22a moves from the upper limit position to the lower limit position between the wire pull-out mechanism 22 and the first wire guide portion 23. Suppresses the movement of wires in parallel. Further, the guide portion 28 has a direction in which the two wires W are arranged in parallel between the rollers 23a and the rollers 23b of the first wire guiding portion 23 and between the rollers 23b and the reel accommodating portion 21. Suppress moving to.

The guide portion 27 is provided on the first wire guiding portion 23 side and the second wire guiding portion 24 side of the pulling roller 22a in the wire pulling mechanism 22, respectively. That is, the guide portion 27 is provided before and after the pull-out roller 22a of the wire feeding mechanism 22 along the feeding direction of the wire W.

The guide portion 27 includes a first guide portion 27a provided on the outside of each wire W with respect to the parallel direction of the two wires W (W1, W2). The first guide portion 27a extends from the base portion 112A along the moving direction of the pull-out roller 22a.

The guide portions 27 are provided so as to face each other with a pair of first guide portions 27a extending along the moving direction of the pull-out roller 22a and having a gap through which at least two wires W can pass. In the guide portion 27, the guide portion 27c is formed in the gap between the pair of first guide portions 27a.

As a result, in the guide portion 27, the pull-out roller 22a is positioned from the upper limit position to the lower limit position between the wire pull-out mechanism 22 and the first wire guide portion 23, and between the wire pull-out mechanism 22 and the second wire guide portion 24. In the range of movement to, each wire W suppresses the movement of the two wires W in the parallel direction.

The guide portion 29D is provided on the wire pull-out mechanism 22 side of the roller 24a in the second wire guiding portion 24.

The guide portion 29D includes a first guide portion 29a provided on the outside of each wire W with respect to the parallel direction of the two wires W (W1, W2). The first guide portion 29a extends from the base portion 112A along the moving direction of the pull-out roller 22a.

The guide portions 29D are provided so as to face each other with a pair of first guide portions 29a extending along the moving direction of the pull-out roller 22a and having a gap through which at least two wires W can pass. In the guide portion 29D, the guide portion 29c is formed in the gap between the pair of first guide portions 29a.

As a result, in the guide portion 29D, each wire W has two wires W in the range in which the pull-out roller 22a moves from the upper limit position to the lower limit position between the wire pull-out mechanism 22 and the second wire guide portion 24. Suppresses the movement of wires in parallel.

The guide portion 29E is provided between the second wire guiding portion 24 and the reinforcing bar binding machine 1A in the vicinity of the reinforcing bar binding machine 1A.

The guide portion 29E is provided between the first guide portion 29a provided on the outside of each wire W and the two wires W in the parallel direction of the two wires W (W1, W2). The guide portion 29b of 2 is provided.

The first guide portion 29a extends from the base portion 112A along the moving direction of the pull-out roller 22a, and the second guide portion 29b extends from the base portion 112A along the moving direction of the pull-out roller 22a.

The guide portion 29E extends along the moving direction of the pull-out roller 22a to one side of the second guide portion 29b along the direction in which the two wires W are parallel, and at least one wire W passes through the guide portion 29E. One of the first guide portions 29a is provided so as to face each other with a possible gap. In the guide portion 29, the guide portion 29c is formed in the gap between the first guide portion 29a and the second guide portion 29b.

Further, the guide portion 29 extends to the other side of the second guide portion 29b along the direction in which the two wires W are parallel to each other along the moving direction of the pull-out roller 22a, and at least one wire W is formed. The other first guide portion 29a is provided so as to face each other with a gap through which the guide can pass. In the guide portion 29, the guide portion 29c is formed in the gap between the other first guide portion 29a and the second guide portion 29b.

As a result, the guide portion 29E separates the feed paths of the two wires W between the second wire guiding portion 24 and the reinforcing bar binding machine 1A, and each wire W has two wires W in parallel. Suppresses moving in the direction of the wire. The guide portion 29E may be provided between the second wire guiding portion 24 and the reinforcing bar binding machine 1A in the vicinity of the second wire guiding portion 24.

1A, 1B ... Reinforcing bar binding machine, 2A. 2B, 2C, 2D, 2E, 2F, 2G, 2H, 2I ... Wire feeding mechanism, 20 ... Reel, 21 ... Reel accommodating part, 22 ... Wire pulling mechanism, 22a ... Pulling roller , 22b ... Drive unit, 22c ... Motor, 22d ... Wire slack absorption mechanism, 22f ... Spring, 23 ... First wire guide unit, 23a, 23b, 23c ... Roller, 23d ... Wire slack absorbing mechanism, 23e ... Slack absorbing roller, 23f ... Spring, 23g ... Flange part, 23h ... Pulley, 24 ... Second wire guiding part, 24a, 24b ... Roller, 24d ... Wire slack absorption mechanism, 24e ... Slack absorption roller, 24f ... Spring, 24g ... Wire feed regulation roller, 25a ... Upper limit detection sensor, 25b ... Lower limit Detection sensor, 27 ... guide unit, 27a ... first guide unit, 27b ... second guide unit, 27c ... guide unit, 28 ... guide unit, 28a ... first Guide section, 28b ... second guide section, 28c ... guide section, 29, 29D, 29E ... guide section, 29a ... first guide section, 29b ... second guide Part, 29c ... Induction part, 3A ... Wire feeding part, 30 ... Feed gear, 31 ... Feed motor, 5A ... Curl forming part, 6A ... Cutting part, 7A ... Bundling unit, 70 ... Wire locking body, 8A ... Drive unit, 80 ... Motor, 100A, 100B ... Control unit, 120 ... Feed amount detection sensor (feed amount detection means), W・ ・ ・ Wire

Claims (15)

A binding mechanism that binds objects to be bound with multiple wires,
A reel accommodating part that accommodates multiple reels wound with one wire,
A bundling facility including a wire feeding mechanism for sending wires from a plurality of reels housed in the reel accommodating portion to the bundling mechanism. The bundling equipment according to claim 1, wherein the reel accommodating portion accommodates a plurality of the reels side by side with their axes oriented sideways with respect to the vertical direction. The bundling equipment according to claim 1, wherein the reel accommodating portion accommodates a plurality of the reels side by side with the axes oriented vertically along the vertical direction. A binding mechanism that binds objects to be bound with wires,
A wire pull-back mechanism that sends the wire sent in the first direction and wound around the binding object by the binding mechanism in the second direction opposite to the first direction and winds it around the binding object.
A reel housing that houses a reel around which a wire is wound,
A wire feeding mechanism for sending wires from the reel housed in the reel accommodating portion to the binding mechanism is provided.
The wire feeding mechanism includes a wire pulling mechanism for pulling out a wire from the reel.
A bundling facility provided with the wire pulling mechanism between the pulling back mechanism and the reel. The wire feeding mechanism includes load applying means for applying a load in the wire feeding direction to at least one of the upstream side and the downstream side of the drawing mechanism with respect to the first direction in which the wire is fed.
The binding device according to claim 4, wherein the load applying means increases the load applied to the wire on the upstream side of the pull-out mechanism to be larger than the load applied to the wire on the downstream side of the pull-out mechanism. In the wire feeding mechanism, the wire is fed in the second direction on the downstream side of the pull-out mechanism, and the load applied to the wire on the downstream side of the pull-out mechanism becomes larger than the load applied to the wire on the upstream side of the pull-out mechanism. The bundling facility according to claim 5, wherein the wire is sent in the first direction on the upstream side of the drawer mechanism. The binding device according to any one of claims 1 to 6, wherein the wire feeding mechanism includes a guide portion for regulating the position of each wire along a direction in which a plurality of wires are arranged in parallel. The binding equipment according to claim 7, wherein the guide portion is provided between a plurality of wires in parallel. The binding equipment according to claim 7 or 8, wherein the guide portion is provided on the outer side of a plurality of wires located on the outermost side of the plurality of wires in parallel along the direction in which the plurality of wires are parallel to each other. The one according to any one of claims 4 to 6, wherein the wire feeding mechanism is provided with a guide portion for restricting the position of each wire along a direction in which a plurality of wires are parallel to each other in the wire drawing mechanism. Bundling equipment. In the wire feeding mechanism, a guide portion for restricting the position of each wire along a direction in which a plurality of wires are arranged in parallel is provided between the wire pulling mechanism and the reel, and the wire pulling mechanism and the pulling mechanism. The bundling equipment according to any one of claims 4 to 6, which is provided for either or both of them. The guide portion includes at least a first guide portion that regulates the movement of a plurality of wires in a direction away from each other along a parallel direction and a second guide portion that regulates the movement of a plurality of wires in an approaching direction. The binding equipment according to claim 11, which is provided between the wire pulling mechanism and the pulling back mechanism. Equipped with a wire pull-out mechanism that pulls the wire out of the reel on which the wire is wound.
The wire drawing mechanism is a wire feeding mechanism that pulls out a wire from the reel according to a surplus amount of the wire in the feeding path of the wire drawn from the reel. When the load applied to the wire on the downstream side of the drawing mechanism becomes larger than the load applied to the wire on the upstream side of the drawing mechanism with respect to the feeding direction of the wire drawn from the reel, the reel is subjected to a surplus amount of the wire. 13. The wire feeding mechanism according to claim 13, wherein the wire is drawn from the reel. A feed amount detecting means for detecting the feed amount of the wire in the feed path of the wire drawn from the reel is provided.
The wire feeding mechanism according to claim 13, wherein the drawing mechanism pulls out a wire corresponding to a surplus amount of the wire from the reel according to the feeding amount of the wire detected by the feeding amount detecting means.

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