WO2000010874A1

WO2000010874A1 - Bundling machine

Info

Publication number: WO2000010874A1
Application number: PCT/JP1998/003729
Authority: WO
Inventors: Yoshiaki Tange; Humiko Tange; Atsuko Tange
Original assignee: Yoshiaki Tange; Humiko Tange; Atsuko Tange
Priority date: 1997-02-19
Filing date: 1998-08-24
Publication date: 2000-03-02
Also published as: JPH10230908A

Abstract

A conventional bundling machine of this kind encounters in some cases the displacement of a wire rod, which is ascribed to a backlash occurring in the meshed portions of gears between a rocker arm and a bent member, and thus fails in feeding the rod wire to a proper position to cause a bundling error. A bundling machine, wherein, when an inflection point of a bow-shaped bent member (60) is moved arcuately by turning a slide base plate (70) around a shaft pin (74) as a fulcrum, a guide pin (62) formed at a rear end portion of the bent member (60) is moved along a guide hole (12), so that a front end portion of the bent member (60) is turned in a direction crossing a recess (11a) as the bent member (60) is moved forward, to have a wire rod (H) make a U-turn and pass around object members (M) to be bundled, which are inserted in the recess (11a), and pressed against a twist head (80), the twist head (80) and a cutter (90) being thereafter turned, so that a portion just fed out of the wire rod (H) is cut off with both end portions of the cut wire rod (H) twisted to enable the object members to be bundled.

Description

Specification

TO machine

Technical field

The present invention relates to a binding machine, and in particular, binds a rod-shaped body or the like with a wire or a cord-like body that can be twisted and bound like a wire (hereinafter referred to as a wire body). Related to a binding machine.

Background art

Conventionally, as a binding machine, a binding machine disclosed in Japanese Patent Application Laid-Open No. Hei 7-23069 has been known.

The board 1 has a notch 1a in front of which a member to be tied can be inserted and a drive guide groove 1b formed on the side upper surface, and a gear 2a at the base. Both a bent member 2 bent in a hook shape and a toothed wheel 3a that engages with the gear 2a are formed at the end, and can be inserted into the drive guide groove 1b at the rear end. A rocker arm 3 on which a flexible guide sliding pin 3 b is erected, and a slide board 4 for rotatably holding the base of the bending member 2, and move back and forth. A rack 5 for holding the vicinity of the center of the rocker arm 3 at the front end and the slide board 4 rotatably with a slide pin 5a, Cut out the wire and feed it from the back of 1a. Feed roller 6 and twist the tip of the wire and the feed-side end to bind the wire.A and power, that have been al configuration.

In the above-described conventional binding machine having such a configuration, the rocker arm 3 and the slide plate 4 are both forwardly moved by the rack 5 moving forward. Pushed out You. Here, when the rocker arm 3 is pushed out, the guide sliding pin 3b moves forward in accordance with the shape of the drive guide groove 1b. The car arm 3 rotates on the slide bin 5a as a fulcrum, and the bending member 2 having the gear 2a engaging with the gear 3a is cut in a counterclockwise direction toward the 1a. It turns. The wire sent from the back of the cut la by the rotation of the bending member 2 is U-turned around the member to be bound, and the door is closed. The binding members are bound. Also, after the above binding, the rack 5 moves backward, so that the rocker arm 3 and the slide board 4 are both pulled back backward. The guide sliding pin 3b moves backward in accordance with the shape of the drive guide groove 1b when the arm 3 is pulled back. The arm 3 rotates about the slide bin 5a as a fulcrum, and the bending member 2 having the gear 2a engaging with the gear 3a cuts clockwise to move in a direction away from 1a. It turns.

At this time, the bending member 2 is configured such that the gears 2a and 3a rotate in response to the rotation of the rocker arm 3 accompanying the movement of the guide sliding pin 3b. Thus, it is configured to be able to rotate in the direction crossing the cut 1a.

The above-mentioned conventional binding machine had the following problems.

The bundling machine rotates a gear 2 a mating with a gear 3 a of a mouth arm 3, and traverses a cut 1 a about a root of the bending member 2 as a fulcrum. Rotating in the direction of the arrow. Therefore, the displacement of the gear 2a is caused by the gas generated at the position where the gear 2a is in a bad position, and the wire is turned around to the regular position. In some cases, the bond was missed without being able to perform the connection. In addition, as the binding is repeated, the gears 2a and 3a wear and the play between the gears 2a and 3a increases, and In some cases, the displacement of the gear 2a was enlarged, and the wire could not be turned around to the proper position, resulting in binding failure.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and thus has a combination of gears. An object of the present invention is to provide a binding machine that can rotate an arm without using a binding machine.

Disclosure of the invention

In order to achieve the above object, the invention according to claim 1 is characterized in that a notch into which a member to be tied is inserted is formed on the front side of the frame, and a substantially hook-shaped notch is formed. While moving the arm back and forth on one side of the incision, rotate the arm so as to pull the tip backward while traversing the incision on the front side, The distal end of the wire sent out from the back of the cut through the side of the tied member is turned around the tied member while making a U-turn. In a binding machine that twists and binds the distal end side and the delivery side end of the delivered wire body, the above-described arm uses a bent member that is bent in a substantially U shape. The concave side is oriented to the side of the notch, and it is moved back and forth while being supported at the bending point of the bending member, and is bent. An uneven guide mechanism is formed between the rear end side of the member and the frame, and when the bent member is at the rear side position, the front end side of the bent member is cut out. When the bending member is at the front side position, the tip of the bending member is rotated to the side crossing the cut. Configuration.

According to the present invention having such a configuration, as the bending member moves forward at the bending point, the rear end side of the bending member moves forward corresponding to the uneven guide mechanism. Then, the distal end side of the bending member rotates to the side crossing the cut. Conversely, when moving the bending point backward, the rear end side of the bending member moves rearward in accordance with the concavo-convex guide mechanism. Rotate the tip side away from the above cut.

Here, the above-mentioned substantially hooked arm refers to the notch on the concave side as described above. Orienting to the side of the wire means the shape that allows the tip side of the wire to be turned around the material to be bound. Then, wrap the leading end of the wire fed from the back of the above notch around the member to be bound to a position where it can be bound with the delivery side of the wire. It should just be a configuration that can be used.

As a specific form of such an arm, the invention according to claim 2 is characterized in that, in the binding machine according to claim 1, the arm is bent in an arc shape. It is composed of bent members. With this configuration, the arm can make the distal end side of the wire turn around the member to be bound along the arcuate shape having a small angle. You.

In addition, the arm shape can be formed in an L shape or a V shape.

Further, as described above, the bending member is rotated by moving the bending point in the front-back direction as described above, but the bending member moves the bending member back and forth. As an example of the method, the invention according to claim 3 is a method according to claim 1, wherein the bending member is supported at a bending point in the binding machine according to any one of claims 1 and 2. The structure is such that the circular motion is made with the opposite side of the cut as a fulcrum.

According to the present invention having such a configuration, when the bending member is circularly moved in the front-rear direction with the bending point as a fulcrum on the side opposite to the cut, the entire bending member becomes The arc moves in the direction crossing the cut and in the direction from the cut. Therefore, when the circular motion is made forward with the opposite side of the above cut as the fulcrum, the above bending point is away from the above cut at the rear position, and the same at the front direction. Approaching the entrance side. In this forward position, the tip side of the bent member pivots to the side crossing the cut, so that when the arm rotates, it is easy to turn around the member to be bound. It becomes bad. Here, in order to perform the rotation at the above-mentioned bending point within a predetermined range, the movable range of the rear end portion performing the same rotation must be set in advance. No. Thus, as an example of a method for limiting the movable range of the rear end, the invention according to claim 4 is the method according to any one of claims 1 to 3 described above. In the binding machine, the concave-convex guide mechanism has a configuration in which a groove is formed in the frame and a convex portion is formed in the bending member.

According to the present invention having such a configuration, the bent member has the convex portion formed in the bent member fitted in the groove formed in the frame, and the rear end portion thereof. Is moved within a predetermined range corresponding to the shape of the groove. Since the frame itself has a notch in the arm, it is easy to form the groove itself, and a part of the bent member also has a convex part. This combination is easy, and this combination makes it easier to manufacture as a whole.

Of course, it suffices if irregularities are formed between the bending member and the frame so that the bending member can be guided to a regular position, and as described above, the bending member is always required. It is not necessary to form a convex part on the same frame and a concave part on the same frame. For example, a convex portion may be formed on the frame side without forming a groove, and a concave portion such as a groove may be formed on the bending member side. Instead of forming a groove from the upper surface of the frame, a member having a groove formed on the lower surface of the frame may be provided.

As an example of the relationship between the inflection point and the rear end when the inflection point moves as described above, the invention according to claim 5 is described in any one of claims 1 to 4 above. In the binding machine according to the above, the bending member is configured so that a movement line at a bending point and a movement line at a rear end cross each other.

According to the present invention having such a configuration, the bending member moves while crossing the movement line at the bending point and the movement line at the rear end. At this time, the movement line at the rear end is on the cut side above the movement line due to the forward and backward movement of the bending point at the rear position, but before and after the bending point at the front position Above the cutting line than the movement line The bending member extends to a side away from the cut, and the distal end side of the bending member rotates forward to the side crossing the cut with the bending point as a fulcrum.

As described above, according to the present invention, the bending member is rotated without rotating the gear to make the wire turn around the member to be bound, so that the rotation of the bending member is stable. In addition, it is possible to provide a binding machine with less binding error.

According to the second aspect of the invention, the bending member can have an arm shape with a small angle.

According to the third aspect of the present invention, the bending member can be easily turned around the member to be bound even by the circular motion of the bending member itself.

According to the fourth aspect of the present invention, the groove is formed in the frame and the convex portion is formed in the bending member, so that the manufacturing is easy.

According to the invention as set forth in claim 5, the amount of turning of the bending member on the distal end side becomes large, and the distal end side of the wire is easily moved to the vicinity of the feeding side. Get sick

BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a diagram showing a main part configuration of a binding machine according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of a main part of the binding machine.

FIG. 3 is a schematic plan view showing the lying state when the bending member is at the rear position.

FIG. 4 is a schematic plan view showing the folded state when the bending member is at the intermediate position.

FIG. 5 is a schematic plan view showing a state when the bending member is at the front position. FIG. 6 is a partially cutaway view showing the bent member and the twist head immediately after the binding of the members to be bound is completed.

FIG. 7 is a perspective view of a main part of the conventional binding machine in a state in which the upper substrate is removed.

BEST MODE FOR CARRYING OUT THE INVENTION

The present invention will be described in more detail with reference to the accompanying drawings.

FIG. 1 shows main components of the binding machine according to an embodiment of the present invention, and FIG. 2 shows an essential part of the binding machine in an exploded perspective view. For convenience of explanation, in Fig. 1 the lower part of the paper is called the front and the nearer side of the paper is called the upper part.However, it is possible to change the direction appropriately at the place of use. is there.

As shown in FIG. 2, the frames are composed of upper substrate 10, upper spacer 20, lower substrate 30, lower spacer 40, and protective plate 5, each having the same outer shape. And the lower substrate 30 in order to move the bending member 60 along a predetermined trajectory. A twist head 80 provided on the side enables binding.

The upper substrate 10 has a notch 11a into which a member to be tied M can be inserted in the front, and a cutout behind the notch 11a. A substantially rectangular notch 1 1b is formed to secure the rotation range of the groove 80 and the cutter 90, and a guide groove 1 is provided on the right side of the notch. 2 is formed. Here, the guide groove 12 is formed parallel to the notch 11a at a position rearward from the far end of the notch 11a, and is positioned forward of the notch 11a. Is formed in an arc shape away from the notch 11a. The guide groove 12 constitutes an uneven guide mechanism for guiding the guide bin 62 formed on the rear end side of the bending member 60. With such a shape, when the bending member 60 is at the rear position, it is possible to turn the distal end side away from the above-mentioned cut 11a. When the bending member 60 is at the front position, the tip of the bending member 60 is turned to the side crossing the cut 11a. In this case, such an uneven guide mechanism is required to be able to rotate at least the side where the distal end of the bending member 60 crosses the cut and the side that is separated from the cut. Good, it is not always necessary to form the guide groove 12 in the upper substrate 10 and the guide bin 62 in the bending member 60 as described above. Absent. For example, instead of forming the guide groove 12 on the upper substrate 10, a guide member having a groove of the same shape may be arranged on the lower surface of the upper substrate 10, or may be provided on the upper substrate 10 side. It is also possible to dispose the guide bin 62 and provide the guide groove 12 on the bending member 60 side.

The upper spacer 20 holds the upper substrate 10 and the lower substrate 30 at a predetermined interval, and the front side is substantially along the movable range of the bending member 60. The notch cuts the bent member 60 to secure a moving space, and at the rear side, the shaft member 1000 serving as the drive shaft of the above-mentioned twist head 80. The feeding path of the wire is secured while supporting the wire.

The twist head 80 is formed by forming a bar-shaped member into an S-shape. The shaft member 100 is formed with the center of the S-shaped surface as a fulcrum, with the S-shaped surface facing forward and backward. Thus, it can be driven to rotate. Further, the shaft member 100 is provided with a cutter 90 for pulling the wire H adjacent to the support position of the coaxial member 100 in the upper spacer 20. The wire H can be cut off like a pair of scissors with the outlet. When the twist head 80 starts to rotate, it begins to twist by gripping the ends of the wire H and the feed-out side at both S-shaped openings. At the same time, the cutter 90 cuts the sending side of the wire H. Obedience Thereafter, as the twist head 80 rotates, the wire H is bound by twisting both ends of the leading end side and the sending-out side.

The lower substrate 30 has a notch 31 a substantially similar to the upper substrate 10, but is provided in the bent member 60 instead of the guide groove 12. An arc-shaped groove 32 is formed along the movement line of the bent portion. On the back side of the lower substrate 30, a sliding substrate 70 that rotates is disposed, and a slide bin 72 formed at the tip of the sliding substrate 70 is provided. Penetrates the groove 32 and penetrates the bent portion of the bending member 60. Accordingly, the bending member 60 moves in an arc above the lower substrate 30 with the rotation of the slide substrate 70. Of course, at this time, the guide pin 62 formed on the rear end side of the bending member 60 enters the guide groove 12 described above, so that the bending member 60 The bending member 60 also rotates due to the back and forth movement accompanying the circular movement.

In this case, the slide board 70 is rotatably supported between the base board 30 and the protection plate 50, and in order to secure the movable space thereof. The lower spacer 40 is arranged. The slide board 70 is supported by the shaft bin 74 as a fulcrum on the side opposite to the groove 32 with respect to the notch 31a. The bending member 60 moves in an arc around the center. Accordingly, the bending member 60 moves from the rear side to the front side, moves away from the cut 31a, and finally approaches. The slide board 70 itself is formed in a V-shape so as not to interfere with the twist head 80 during such a rotational movement.

Such a bending member 60 is formed in a substantially arcuate shape, and a slide bend that can penetrate the slide bin 72 is provided at a bent portion slightly rearward from the middle. In addition to providing a hole 61, a guide pin 62 is formed at the rear end. Therefore, the circular motion caused by the slide pin 72 of the slide board 70 penetrating through the slide bin hole 61 and the above-described gas Invitation by Idobin 62 As a result, when the bending member 60 moves forward, the distal end of the bending member 60 crosses the cuts 11a and 31a at the forefront end. 'Is drawn backwards. Since the leading end of the wire body H is pressed against the twist head 80 by this attracted movement, the tip of the bending member 60 is formed in a bifurcated manner. The wire H is pressed against the twist head 80 so as not to interfere with its rotational movement. Also, when the bending member 60 moves backward, it leaves the cuts 11a and 31a and retreats to one side.

A similar cut 5 la is also formed in the protective plate 50, and the above-described rotational movement of the slide substrate 70, the rotational movement of the shaft member 100, and the illustration are also provided. The unwinding mechanism of the wire H, which is not driven, is driven at a predetermined timing while being synchronized by a rotary cam mechanism supported on the rear side of the binding machine. It is becoming.

Next, the operation of the present embodiment having the above configuration will be described.

Fig. 3 shows the binding machine in a standby state during standby. As shown in the figure, the bending member 60 is moved rearward by the slide board 70, and the tip of the bending member 60 is cut 1 1a, 31a, 51a (hereinafter simply referred to as "cut 11a") Guide bin on the rear end side of the bending member 60 so that it can rotate to the side away from it. 62 is guided by the guide groove 12 and is held on the side approaching the cut 11a.

When the member to be tied M is inserted into the notch 11a in this prone state, a switch (not shown) is operated to rotate the rotary cam mechanism. Then, the slide board 70 starts rotating toward the front side, and the wire body H is also extended by an unillustrated extension mechanism. Get started. As shown in FIG. 4, when the slide board 70 rotates forward by about half of the movable range, a guide formed at the rear end of the bent member 60 is formed. Bin 6 2 is located at the rear end of guide groove 12 Advance the formed parallel part. However, at this time, the bending member

Since 60 itself moves in a circular arc due to the rotational movement of the slide board 70 and approaches the cut 11 a, the tip of the bent member 60 is cut 11 1 Start crossing a. Until this state, the movement line of the slide pin 72 does not intersect with the movement line of the guide bin 62, and the guide bin 62 does not cross. It is moving inside the movement line of ride bin 72.

On the other hand, also during this time, the wire H is extended forward on the side of the member M to be bound, and the tip of the bending member 60 starts to cut across the notch 11a. As a result, the direction starts to change when the member M exceeds the member M to be bound.

Further, when the slide board 70 is rotated forward, the guide bin 62 is formed with an arc-shaped guide recessed away from the notch 11a. It moves forward while being guided by the groove 12. That is, the movement line of the guide bin 62 intersects with the movement line of the slide bin 72 and is guided in a direction away from the cut. As a result, the bending member 60 itself rotates. However, due to the bending shape, the distal end of the bending member 60 extends through the notch 11a as shown in FIG. Move so that it is pulled toward the section.

Then, the wire H is completely U-turned around the member M to be tied, and the front end of the wire H is swung by the forked end of the bent member 60. Pressed to head 80. Up to this point, the twist head 80 and the cutter 90 have been stationary, and the force that allowed the wire H to be extended <<the required amount of wire The extending mechanism is also stopped when the body H is extended, and at this time, the shaft member 100 starts to rotate. Then, the twist head 80 starts to twist the front end and the rear end of the wire H, and the power 90 cuts the rear end of the wire H. . Then, when the wire H is rotated several times, the wire H is wound around the member M to be bound and twisted at both ends to be in a bound state. This state is shown in FIG. In this way, when the slide board 70 is rotated with the shaft bin 74 as a fulcrum and the bending point of the bending member 60 bent in an arc shape is linked with an arc, the bending is the same. The guide bin 62 formed at the rear end of the member 60 moves along the guide groove 12, and the front end side cuts as the bending member 60 moves forward. 11 1a is rotated to the side crossing, and the wire H is turned in a U-turn around the binding member M inserted in the cut 1 1a. It can be pressed into the swist head 80, and then the swivel head 80 and the power cutter 90 can be rotated. When this is done, the wire H can be bound by twisting both ends while cutting the delivery side.

Claims

The scope of the claims

1. A notch is formed in the front side of the frame to allow the member to be bound to be inserted, and a substantially hook-shaped arm is inserted in one side of the notch. At the front side, while turning across the cut, rotate it so that the tip is pulled backward, and the side of the binding member from the back of the cut. The tip of the cord-like body sent out through the side is returned around the member to be bound, and the cord-like body sent out with the tip is sent out. In the binding machine that twists and binds the

The arm is formed by bending a bent member having a substantially U-shape with its concave side oriented toward the notch, and at the bending point of the bent member. When it is supported and moved back and forth, and an uneven guide mechanism is formed between the rear end of the bending member and the frame, the bending member is located at the rear position. At this time, the tip side of the bent member is rotated to the side away from the cut, and when the bent member is at the front position, the tip end of the bent member is cut away. A binding machine characterized by turning to the side that crosses the slit.

2. In the binding machine according to claim 1,

The above-mentioned arm is a binding machine characterized in that it is constituted by a bending member bent in a bow shape.

3. In the binding machine according to any one of claims 1 and 2, the bending member is supported at a bending point and an arc is formed with the opposite side of the notch as a fulcrum. A binding machine characterized by being exercised.

4. The binding machine according to any one of claims 1 to 3, wherein the concave-convex guide mechanism forms a clean on the frame, and forms a convex portion on the bending member. A binding machine characterized by forming.

5. The binding device according to any one of claims 1 to 4,

The bending member is characterized in that the movement line at the bending point and the movement line at the rear end cross each other.