JPH047047Y2 - - Google Patents

Description

[Detailed description of the invention] (Technical field of the invention) The present invention is a binding consisting of a long binding band, an opening through which the band is inserted, and a stopper formed with a locking claw on the opposite wall surface of the opening. The present invention relates to a binding machine for binding electric wires and the like using a tool, and particularly relates to a band cutting device that cuts a binding band at the rear end side of a fastener after tightening an object to be bound.

(Technical background of the invention and its problems) In this type of tying machine, when tying is performed using a tying tool in which the tying band and the stopper are configured separately, the tying band is first The tip of the band is inserted through the opening of the tool, and the protruding tip of the band is run around the object to be bound in a loop shape, and the tip is inserted into the opening of the stopper and locked with the locking claw, and the proximal end of the band is inserted into the opening of the stopper. By pulling back the band, the tip of the band is tightened to the object to be bound, and then the pulled back band is cut with a cutter at a position near the stopper, and the object to be bound after binding is removed from the binding machine. .

In such a binding operation, a structure is required in which the stopper is placed at a position apart from the object to be bound during the process of circulating the band around the object to be bound, and moved to a position close to the object when the band is tightened. This is because if the stopper is in the above-mentioned close position when the band is guided around the stopper, the band will suddenly move when it is sent out toward the object to be bound through the opening of the stopper and when it is rotated and reinserted into the stopper. Because the band travels in a curved manner, the band that should be fed out through the center of the opening of the stopper may become deflected and get caught in the locking pawl of the stopper, causing trouble in running, or the tip of the band may break. This is because the bending causes running problems such as the stopper not being able to be inserted smoothly into the opening.

By the way, in the case of the above-mentioned movable structure of the fastener, the position where the fastener approaches the object to be bound is not necessarily constant due to the influence of the diameter and shape of the object to be bound or errors due to variations in parts.

On the other hand, the position of the cutter for cutting the band is set as close as possible to the stopper on the rear end of the stopper, that is, on the opposite side of the object to be bound, so that the band cutting portion protruding toward the rear end of the stopper is It is desirable to be able to cut with almost no residue left. However, as mentioned above, the moving position of the stopper is not constant, so if the cutter is fixedly placed, the length of the cut end surface of the band will vary, and in some cases, the cutter will not move during the cutting operation. There is also a problem in that it interferes with the stopper or the member holding the stopper and is damaged due to contact with these, and there is a desire to improve this problem.

(Purpose of the invention) The present invention was developed in consideration of the above circumstances, and its purpose is to always cut the band at a fixed position close to the rear end of the stopper, even if the stopper is configured to move. To provide a band cutting device for a binding machine for electric wires, etc., which can perform reliable and stable band cutting work without interference of a cutter with a stopper or its holding member.

(Means for Solving the Problems) In order to achieve the above object, the present invention includes a stopper provided with an opening and a locking claw formed on an opposing wall surface in the opening, and a stopper provided with a locking claw formed on one side of the opening. A binding machine that binds objects to be bound, such as electric wires, using a binding device consisting of a long band formed with teeth that engage with a locking claw, the binding device passing the binding band through an opening in the stopper to the object to be bound. and band guide means for guiding the band around the outer periphery of the object and guiding the tip of the band that has gone around toward the opening of the stopper. a first part having a concave portion for holding the fastener and spaced apart from the object to be bound while holding the fastener;
a stop holding member that moves between the position of the stopper holding member and a second position adjacent to the stopper holding member; , a cutter member capable of cutting the band on the rear end side opposite to the object to be bound; and a cutter member that is moved together with the stopper holding member and always at a fixed position close to the rear end side with respect to the stopper. An electric wire, etc., characterized by a structure consisting of a cutter support means corresponding to the above-mentioned stopper holding member, and a cutter actuation means disposed so as to be able to engage with the cutter member over at least a part of the movement range of the cutter member that moves together with the stopper holding member. This paper proposes a band cutting device for a tying machine.

(Function) In the present invention, the cutter member moves together with the stopper and the holding member in the direction of movement thereof, and also operates in the lateral direction relative to these members when cutting the band. Therefore, even if the movement position of the stopper changes due to the diameter of the object to be bound, etc., the cutting position of the band can remain at a constant position close to the stopper on the rear end side of the stopper. In addition, the cutter actuating means corresponds to the movement range of the cutter member, and even if the cutter member moves to a different cutting position, it can cover this movement range and perform the cutting operation. Therefore, the above-mentioned object of the present invention is fully achieved. Embodiments of the present invention will be described below with reference to the drawings.

(Example) In the tying machine of this embodiment, FIGS. 1 and 2 show the main parts of the tying machine in its original position before the tying operation.

In FIG. 1, 1 is the main body of the binding machine, and 2 and 3 are fixed jaws and movable jaws provided at the ends thereof. Both jaws 2 and 3 have arc-shaped guide grooves 2a and 3a on opposing inner surfaces, respectively, which constitute annular outer guide members and guide the binding band 4 around. The lower stationary jaw 2 is integrally fixed to the main body 1 by bolting, and the upper movable jaw 3 is rotatably supported on a support shaft 5 and constitutes a rotating portion of the annular outer guide member.

The movable jaw 3 is connected to an actuating air cylinder 7 serving as an actuating means through an operating link 6 linked thereto, and in its original state is held at the open position shown in the figure and surrounded by both jaws 2 and 3. The object to be bound can be inserted into the binding part 8.

The operating cylinder 7 includes a piston rod 9 linked to the operating link 6, a cylindrical piston 10 to which the rod 9 is attached, a compression spring 11 housed in the piston 10, a slider 12 that receives one end of the spring 11, and the slider. 1
The cylinder 14 is provided with an abutting rod 13 extending into the piston 10 so as to be in separable contact with the piston 2. And in the original state,
The air chamber 14a on the left side is in an inoperative position where pressurized air is applied.

Reference numeral 15 denotes a stopper holding member for positioning and supporting a block-shaped stopper 16, which is slidably mounted on a horizontal guide frame 17 fixed to the main body 1 constituting the band feeding guide member, and has one end thereof, that is, the front end. A stopper support recess 1 is provided in the portion 15a.
8, a cutter guide hole 19 and a guide passage 20 are formed, and the guide passage 20 is connected to the guide frame 17.
It communicates with the guide passage 17a.

In the original position of the binding machine, the fastener holding member 15 is placed at the reference position (first position) shown in the figure. In this state, the front end of the guide frame 17 is located near the front end 15 a of the stopper holding member 15 and extends to the vicinity of the stopper 16 .

The binding band 4 includes a drive pulley 21 constituting a band drive means and a pinch roller 22 that rolls into contact with the drive pulley 21.
is supplied from outside the binding machine via the drive pulley 2.
A reversible drive motor 24 connected to the drive shaft 23 of 1
(FIG. 2), the band is selectively driven in the band feeding direction shown by the solid line arrow or the band tightening direction shown by the broken line arrow. That is, the drive pulley 21 and the like that constitute the band feeding means are as follows:
It also constitutes a band tightening means that performs a tightening operation to tighten the band 4 against the object to be bound.

In the original position, the band 4 is placed in a standby position A in which its tip 4a remains within the guide passage 17a of the guide frame 17.

A tension roller 25 and a swinging plate 26 having a guide passage 26a for guiding the band 4 are arranged between the guide frame 17 and the drive pulley 21. It is pivotably supported by a tension spring (not shown) and is normally held at the original position shown in the drawing. The bridging space between the guide passage 26a and the guide passage 17a of the guide frame 17 is narrow, and the entrance side of the guide passage 17a is chamfered, so that the band 4 can be bridged smoothly between the guide passage 26a and the guide passage 17a of the guide frame 17. It will be done. A tension sensor 29 detects the degree of tightening of the band 4. Reference numeral 30 denotes a driving slider for driving the stopper holding member 15, which is connected to an air cylinder 31 at one end and guided by a guide roller 32 supported by the main body 1 and a guide groove 30a of a predetermined length engaged with the guide roller 32. There is. In the figure, the drive slider 30 is just at the beginning of its stroke. The slider 30 is in operative connection with the stopper holding member 15, as will be described later, and serves as actuating means for the member 15.

The front end 15a of the stopper holding member 15 that supports the stopper 16 is normally located at a reference position (a reference position) spaced a predetermined distance, e.g. 1), leaving an intermediate region M between them. As will be described later, a movement path is formed in this intermediate region M, through which the stopper holding member 15 can slide when the band is tightened.

In the intermediate region M, the first band guide member 34 is directed from one side (upper side) of the band running path S shown by the chain line, in other words, the movement path of the stopper holding member 15, and from the other side (lower side). ) to the second
Band guide members 35 are arranged to face each other.
Both band guide members 34 and 35 constitute an intermediate guide means, which functions to guide the band 4 in the intermediate region M.

The first band guide member 34 is rotatably supported on the main body 1 by a support shaft 34a at its base end, and is constantly biased in one direction (band guide direction) by a coil spring 34b. It is held in the first position shown by a stopper 34c.

On the other hand, the second band guide member 35 also functions as a band sensor lever for detecting the tip of the band, as will be described later, and is normally held at the first position shown.

When these band guide members 34, 35 are in the first position shown in the figure, the band 4 is guided to travel therebetween.

The band guide member 35 is connected to a support shaft 37 on the main body 1.
, an intermediate lever 38 corresponding to the band sensor 36
Both levers 35 and 38 are elastically held in the illustrated first position by a coil spring 39 and a stopper 40 that holds the levers. The band member 35 supports a cam roller 42 via a link 41 and is connected to a two-arm lever 43 that is rotatably supported on the main body 1, and the roller 42 follows the slide trajectory of the drive slider 30 as schematically indicated by the chain line. It is coming within. Band guide member 35
is constantly biased in one direction (band guide direction) by a tension spring 41a suspended on the link 41, and the spring is activated with one end of the link 41 in contact with the contact portion 2b on the fixed jaw 2. It is held in the first position against bias.

Note that 44 is a cutter for separating the stopper 16 from the following stopper, and is provided integrally with the band guide member 35.

Reference numeral 45 denotes an inner guide member having a triangular cross section, which together with the annular outer guide member constitutes band guide means.
The triangular apex portion of the inner guide member 45 is located in such a manner that it enters the band delivery port 33, and a pair of guide surfaces 45a and 45b are formed upwardly and downwardly inclined at a predetermined angle. The triangular apex portion is slightly deviated downward with respect to the band running path S shown by the chain line, and reliably guides the tip 4a of the band that has entered the delivery port 33 toward the upper guide surface 45a. do. Both guide surfaces 45a and 45b of the inner guide member 45 cooperate with the fixed jaw 2 forming the corresponding annular outer guide member to form a delivery passage and a return passage regulated to a predetermined width as shown in the figure. Band tip 4a
By passing the band through the tip 4a of the running band.
actively insert the guide grooves 3a, 2a of both jaws 3, 2.
In particular, the tip 4a of the band that has entered the delivery port 33 is forcibly bent in its traveling direction so that it does not go straight and come into contact with the object to be tied, and is then returned in a loop. This serves to positively direct the tip end portion 4a of the band that has been removed toward the stopper 16.

The inner guide member 45 moves from the guide position where it acts as described above to the band running path S as described later.
It is configured to be able to be retracted laterally from the guide position at least before the band tightening operation is completed.

In FIG. 2, one end 30b of the drive slider 30 has entered the cam groove 46 of the stopper holding member 15 so as to be able to engage with it, and when the binding machine is in its original position, one end of the cam groove 46 is shown as shown in the figure. is engaged with the part. This drive slider 30 corresponds via a cam roller 47 attached thereto to a stop feed lever 48, which lever 48 is connected to a cam roller 47.
It has cam edges 49a, 49b that cooperate with the cam edges 49a, 49b. The lever 48 is pivotally supported by the main body 1, and is biased in the stopper feeding direction in the figure by a stopper feeding spring 50 whose spring pressure is adjustable. A free end of the lever 48 is provided with a support shaft 51, a cam roller 52 mounted thereon, and a spring hook 53.

Reference numeral 54 designates an interlocking plate that is rotatably supported on a support shaft 55 on the main body 1 and is integral with the inner guide member 45, and has a U-shaped cam groove 56 that engages with the cam roller 52. A stopper feed pawl 57 is pivotally supported on the support shaft 51 and is constantly biased by a coil spring 58 in the direction of engaging the stopper.

The stopper 16 is guided by a stopper loading frame 59 attached to the main body 1, and is fed into the band traveling path S in a lateral direction along the loading path 59a in a connected state. Stopper holding member 1 in the reference position
At this time, the stopper support recess 18 of No. 5 is connected to the loading path 59a.
It is consistent with Note that 60 is a spring-biased locking pawl that restricts the return of the stopper 16.

Reference numeral 61 denotes a lever for detecting passage of the tip of the band, which is pivotally supported by the main body 1 and is supported by a spring 62.
The free end enters the band running path S via the stopper holding member 15 and the guide frame 17, and is interposed between the tip end 4a of the band at the standby position A and the stopper 16. are doing. In this state, the lever 61 is in contact with the sensor 63, thereby detecting that the band 4 is not passing through.

Next, the configuration of the band cutting device will be explained with reference to FIG. A cutter 65 for cutting the band is slidably supported in a cutter guide hole 19 (FIG. 1) formed at the front end of the stopper holding member 15. The guide hole 19 is connected to the stopper holding member 15.
is formed in a lateral direction at an angle with respect to the direction of movement along the band travel path S, and one end or inner end thereof opens into a guide passage 20 through which the band 4 passes.

66 is a cutter lever that constitutes a cutter member together with the cutter 65, and one end or the free end is connected to the cutter 6.
5, the other end or the proximal end is rotatably supported by the stopper holding member, and is constantly urged in one direction (counterclockwise in the figure) by a coil spring 67. Against this bias, the cutter 65 is normally held in the inoperative position shown in the figure, where the lever end is in contact with the stopper 68.

The cutter 65 and the cutter lever 66 constitute a cutter portion and a lever portion of the cutter member, respectively.

A cutter operating lever 70 rotatably supported on the main body 1 corresponds to a cam roller 69 attached to the cutter lever 66.
is connected to a cutter actuating air cylinder 71 which cooperates with the cutter actuating means to constitute a cutter actuating means.

As is clear from the above configuration, the cutter members, that is, the cutter 65 and the cutter lever 66, are supported by the stopper holding member 15 and move together with the member 15. That is, the stopper holding member 15 has the structure of a cutter support means.

On the other hand, the cutter 65 is rotated by the rotation of the lever 66.
In conjunction therewith, the stop retaining member 15 can be moved from its inactive position transversely to the direction of movement, thereby moving the band 4 in the guide passage 20 behind the stop 16, as will be described below. It can be cut at a fixed position close to the stopper 16 on the end side, that is, on the side opposite to the binding section 8 where the objects to be bound are placed.

Further, the cutter lever 66 is attached to the stopper holding member 15.
It corresponds to the cutter actuating lever 70 via the cam roller 69 in the movement range in which it moves integrally with the cutter actuating lever 70 . That is, the cutter actuating lever 70 sufficiently covers the range where the cutter lever 66 moves to cut the band, even if the moving position changes slightly due to the diameter of the object to be bound, etc.
It is operational.

Note that details of the band cutting operation will be described later.

In FIGS. 3 and 4, the binding tool used here is partially enlarged, but as shown in FIG. 3, the band 4 has locking teeth along the longitudinal direction on one surface. 4b is formed into a loose shape, and ribs 4c having the same height as the teeth 4b are formed along both side edges.

As shown in FIG. 4, the stopper 16 is connected by a web 16a that is easily broken, and has an opening 72 formed in the center thereof, which serves as a band insertion hole, passing through the band in the running direction of the band. Locking pawls 16b are integrally formed to protrude from the upper and lower opposing wall surfaces that partition the . The band 4 and the stopper 16 are manufactured, for example, by integral molding of a synthetic resin using a molding method such as extrusion or injection molding.

Next, a series of binding operations by the binding machine will be explained with reference to FIGS. 5 to 11.

In FIG. 5, when objects W to be bound such as electric wires are placed in the binding position 8, first, for example, by actuating a trigger lever (not shown), the actuating cylinder 7 is moved to the left to release pressurized air from the air chamber 14a. The outflow moves it from the inactive position to the first active position.
That is, the piston 10 moves to the left under the force of the spring 11, but the slider 12
It stays in the position where it touches 3. As a result, the movable jaw 3 is rotated from the open position to the illustrated circumferential guide position via the operating link 6, and both the jaws 2 and 3 position the guide grooves 2a and 3a in an annular shape around the object W to be bound.

Next, the motor 24 is driven to rotate forward in the feeding direction,
The band 4 is advanced along the band travel path S from the standby position A via the drive pulley 21 and the like. The band 4 is inserted from the guide frame 17 into the opening 72 of the stopper 16 supported in the support recess 18 of the stopper holding member 15, and is guided in travel by the upper and lower band guide members 34, 35 in the intermediate region M. It moves further forward and enters the delivery port 33.

Further, an inner guide member 45 is interposed in front of the delivery port 33 so as to be located just between the object W to be bound and the band. Therefore, the tip end 4a of the band is guided in the regulated band feeding path by the upper guide surface 45a of the inner guide member 45 in the guide position, and is guided around the object W to be bound along both the jaws 2 and 3. When the distal end 4a returns to the delivery port 33 again, it is guided in the band return path by the lower guide surface 45b of the inner guide member 45, and further exits the delivery port 33 and the stopper 1
It reaches a nearby position just before entering 6. Here, the return of the band tip member 4a is detected again by the band guide member 35, which is guided by the upper and lower band guide members 34 and 35 and also serves as a sensor lever, and at that timing, the drive of the motor 24 is stopped and the next The actuating cylinder 7 is moved further into the second actuating position shown in FIG.

That is, the pressurized air is transferred to the right air chamber 14b.
is attached to the slider 1 along with the piston 10.
2 also leaves Rod 13 and moves to the left. As a result, the movable jaw 3 further rotates to the push-in position, pushes the tip end 4a of the band into the opening 72 of the stopper 16, and locks and fixes it there with the locking claw 16b of the stopper 16.

In the above operation, as shown in FIG. 7, when the band 4 moves forward along the arrow F, it passes through the center position XX which is equidistant from the upper and lower locking claws 16b of the stopper 16. , guide frame 1
7 to the vicinity of the stopper 16, both locking claws 16 protrude in the opposite direction to the forward direction F.
Interference with b can be avoided. In addition, in the intermediate region M that protrudes from the stopper 16 toward the inner guide member 45, the pair of band guide members 34 and 35 forming the guide means guide the band 4 as described above, so that the locking pawl 16b is closed during forward travel. Teeth 4 of the band against
b. Interference is actively prevented, and smooth band running is achieved.

Also, when the distal end portion 4a of the band returns along the arrow R to the vicinity of the stopper 16, in order to enter the opening 72 of the stopper 16 from this position, the proximal end portion must be attached to the already inserted band 4. A forcing force is required to push the band upward, and this force is applied by rotating the movable jaw 3 to the pushing position, and as shown in FIG. 8, the base end of the band 4 is pushed in positively. Center position
-X, and is deviated upward from the tip 4a to securely engage with the corresponding locking pawl 16b. Then, the tip portion 4a no longer comes out of its locked position.

In addition, the stopper support recess 1 of the stopper holding member 15
8 and the upper and lower walls 15 between the cutter guide hole 19
b, 15c, the upper wall part 15b, that is, the wall part on the side where the base end of the band is pushed up, has a notch 15d so that the base end can easily move upward.
It forms and becomes shorter.

From the state shown in Figure 8 above, point the proximal end of the band to arrow P.
By pulling back along the band 4, the tip 4
A remains in the stopper 16 and slides in the locked state, and the band is tightened.

That is, when moving to the operation of tightening the band 4 and tightening it against the object W to be bound, that is, before the band tightening operation is completed, the inner guide member 45 moves from the guide position in the band traveling path S to the position shown in FIG. Evacuate in the direction of the arrow as shown. This evacuation action is
This is done by moving the drive slider 30 in the direction of the arrow from the starting end position of the stroke until it engages with the other end of the cam groove 46 of the stopper holding member 15.
During this time, the cam roller 47 engages with the flat cam edge 49b of the lever 48 to hold the lever 48 in the rotating position against the spring, and the lever 54 rotates due to the cooperation of the cam roller 52 and the cam groove 56. An avoidance operation of the inner guide member 45 is performed.

Next, the drive slider 30 further moves to the left, and the stopper holding member 15 is moved from the reference position in the direction of the object W through the intermediate region M to the forward movement position (second position) shown in FIG. During this time, the motor 24 is driven in reverse to drive the drive pulley 21 and the like in the direction shown by the arrow, thereby operating to pull back the base end of the band 4. As a result, the band 4 is tightly tightened on the object W to be bound.

Note that, as a pre-movement before the stopper holding member 15 moves forward, the movable jaw 3 moves to the open position,
To avoid interference with a loop-shaped band when the slider member 15 moves forward.

Further, as the drive slider 30 moves and engages with the cam roller 42, the lower band guide member 35 rotates via the link 41, and the stopper holding member 1 is rotated.
The robot is forcibly moved to the second position shown in FIG. 10, which is outside the movement trajectory of No. 5. Therefore, the member 35 does not hinder the forward movement of the stopper holding member 15 and the stopper 16.

On the other hand, when the upper band guide member 34 moves forward, the front end 15a of the stopper holding member 15 moves forward.
The inclined cam edge 3 formed on the band guide member 34
4d, and its cam action causes the member 34 to be held in place by the spring 34 in accordance with the movement of the stopper holding member 15.
Smoothly rotate it out of the movement trajectory against the bias of b. The position shown in FIG. 10 is the second position of the upper band guide member 34.

Upper and lower band guide members 34, 35
is also moved out of its trajectory in relation to the forward movement of the stopper holding member 15, as described above.
There is no problem in the movement of the stopper holding member 15.

Furthermore, when the stopper holding member 15 retreats and returns to the reference position, the upper band guide member 34 is moved by the urging force of the spring 34b, and the lower band guide member 35 is moved by the drive slider 30.
are each returned to the first position by a linkage mechanism interlocked with.

Prior to the forward movement of the stopper holding member 15, the cutter 44 is actuated to remove the web 1 of the stopper 16.
6a (FIG. 4), and the stopper 16 supported by the stopper holding member 15 is separated from the following stopper. The operating direction of the cutter 44 is indicated by arrow Q in FIG.
It is shown.

In addition, instead of this cutter 44, it is also possible to construct the web so that the web is torn off at the sliding edge portion with respect to the main body when the fastener holding member 15 moves forward, and the cutter 44 can be made unnecessary.

When the tension of the pulled back band 4 increases and the tightening of the bound object W becomes sufficiently strong, the swing plate 26 is moved via the tension roller 25 against the bias of a tension spring (not shown). When the plate 26 rotates from its original position to a state where a predetermined tightening force is obtained, the leaf spring 2
The sensor 29 is activated via the sensor 8, thereby starting the band cutting operation by the band cutting device.

That is, as shown in FIG. 11, the air cylinder 71 is actuated to rotate the cutter operating lever 70 clockwise, and the cutter support lever 66 is cam operated to operate the cutter 65 from the inoperative position, thereby releasing the stopper. The band 4 is cut from the proximal end at a position immediately on the rear end side of the band 16. The air cylinder 71 then returns to its original position (FIG. 2), and the cutter 65 is accordingly returned to its inoperative position.

The above cutting loosens the base end of the band, and the tension roller 25 returns to its original position due to the bias of a tension spring (not shown). With this force, the remaining base end of the hand 4 is moved as shown by the chain line in FIG. Retreat to position B shown by .

However, at this position B, the tip end 4a of the band
Since it is in a state of interfering with the entry of the next stopper 16, the motor 24 is further driven in the reverse direction to pull the tip end 4a of the band back to the initial standby position A.
Then, the return to position A is detected by the lever 61, and the motor 24 is stopped by the operation of the sensor 63.

Then, by releasing the trigger lever, the stopper holding member 15 also moves back from the forward position (second position) to the reference position (first position), separating it from the binding tool bound to the object W. , everything returns to its original position and one binding operation is completed.

As a result, the stopper feed lever 48 is also returned to its original position by the action of the spring 50, and during this time, the feed claw 57
One fastener 16 is fed into the support recess 18 of the fastener holding member 15 in preparation for the next binding operation.

As described above, a series of binding operations including guiding and driving the binding tool are automatically performed without any manual operation. The band cutting operation is performed using the cutter 65 which forms the cutter member, as described above.
Since the cutter lever 66 is configured to move together with the stopper holding member 15, the cutter lever 66 is cut at a fixed position close to the rear end side of the stopper 16, and the length of the band cutting end left behind the stopper 16 is shortened. There are no irregularities in size. Furthermore, as shown in the embodiment, the cutter 65 operates in such a manner that it slides into contact with the rear end surface of the stopper 16, so that it can cut cleanly with almost no cut ends of the band remaining, and moreover, during the cutting operation, There is no fear of interference with the stopper 16 or the like.

In the embodiment, the cutter 65 and the cutter lever 66 are directly supported on the stopper holding member 15, but it is also possible to provide a separate member that is movable in conjunction with the holding member and support the cutter lever 66 thereon. be. Further, the cutter 65 and the cutter lever 66 may be constructed as an integral member.

As described above, the present invention is not limited to the configuration of the embodiment.

(Effects of the invention) As described above, in the present invention, in a binding machine configured to move the stopper during the binding work process, the cutter member is moved integrally following this movement, and when cutting the band, the cutting member is moved in the direction of movement. Since the cutter actuating means is arranged so as to be able to operate laterally relative to the cutter member and to be able to engage with the cutter member over at least a part of the movement range of the cutter member, the effect of the diameter etc. of the object to be bound is reduced. Even if the moving position of the stopper changes, the band can be cut at a fixed position close to the rear end of the stopper, eliminating variations in the length of the cut end, and cutting the band at a fixed position close to the stopper. There is no fear that the holding member and the cutter member will interfere with each other, and a stable and accurate band cutting operation can be achieved at all times, and various effects are achieved, such as facilitating the automation of binding work.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal cross-sectional view of the main parts of the binding machine of the embodiment in its original position before the binding operation, Fig. 2 is a planar cross-sectional view of the main parts taken along the line 2-2 in Fig. 1, and Fig. 3 4 are partially enlarged perspective views of the binding band and the stopper, FIGS. 5 and 6 are longitudinal cross-sectional views of essential parts showing the movable jaw in the first and second operating steps, respectively. 7 and 8 are enlarged sectional views of essential parts for explaining how the band is inserted into the stopper, FIG. 9 is a plan sectional view of essential parts showing how the inner guide member is retracted, and FIG. FIG. 11 is a vertical cross-sectional view of the main part showing the mode of the binding operation, and FIG. 11 is a plane cross-sectional view of the main part showing the mode of the band cutting operation. 1... Binding machine body, 4... Binding band, 15...
...Stopper holding member, 16...Stopper, 65...Cut, 66...Cut lever, 70...Cut operating lever, 71...Cut operating air cylinder,
W...Object to be bound.

Claims (1)

[Claims for Utility Model Registration] (1) An opening, a stopper provided with a locking pawl formed on an opposing wall surface within the opening, and a length having teeth formed on one side to engage with the locking pawl of the stopper. A binding machine for binding objects to be bound, such as electric wires, using a binding tool consisting of a long band, comprising: a band feeding means for feeding the binding band toward the objects to be bound through an opening in a stopper; A band guide means that guides the band around the outer periphery of the bundle and guides the tip of the band that has circulated toward the opening of the stopper, the band having a recess for holding the stopper and holding the stopper. a stopper holding member that moves between a first position spaced apart from the object to be bound and a second position close to the object; A cutter member capable of cutting the band at the rear end side of the stopper held in the concave portion of the holding member opposite to the object to be bound; and a cutter member capable of cutting the band at the rear end side opposite to the object to be bound; a cutter support means that always corresponds to a fixed position close to the rear end side of the cutter, and a cutter actuator that is arranged so as to be able to engage with the cutter member over at least a part of the movement range of the cutter member that moves together with the stopper holding member. 1. A band cutting device for a binding machine for electric wires, etc., comprising: a means for cutting a band. (2) The band cutting device for a binding machine for electric wires, etc., according to claim 1, wherein the cutter supporting means is provided on a stopper holding member. (3) The cutter member includes a cutter portion slidably guided in a guide groove formed in the stopper holding member in a direction perpendicular to the moving direction of the holding member, and one end of which engages with the cutter portion. a lever rotatably supported on the stopper holding member, and the cutter actuating means includes a cutter actuating lever that cam engages with the lever portion to perform a band cutting operation. A band cutting device in a binding machine for electric wires, etc., according to claim 2.