JPH0735302U - Wire twisting mechanism - Google Patents

Abstract

(57) [Summary] [Structure] The support arm 41 is swingable between a posture that supports the base of the twisted eye and a posture that retracts from the twisted eye.
Was set up. The kick arm 31 is provided so as to be swingable between a posture in which the twisted eye is sandwiched between the support arm 41 and the support arm 41 and the posture is retracted, and a posture in which the kick arm 31 is retracted from the support arm 41. The support arm 41 and the kick arm 31 are tilted toward the wire guide rings 21a and 21b by a predetermined angle. [Effect] The support arm 41 prevents the binding wire from being displaced, and the twisted eye can be surely tilted. The safety of workers can be secured. It is possible to prevent the contacted object from being damaged due to the twisted eye.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention mainly relates to an automatic binding machine that binds long steel strips and the like with binding wires.

[0002]

[Prior art]

 Conventionally, a plurality of bar steel products such as round bar steel products and shaped steel products are bundled with a wire and shipped as a bundle. This binding work is usually performed by an automatic binding machine. Generally, such an automatic binding machine winds a binding wire around the above-mentioned steel bar in a loop shape and twists the root of the loop to form a twisted line and binds it together. The binding mechanism is provided with a wire feeding mechanism that feeds the binding wire, and a twisting and tilting mechanism that tilts down the formed twisted eyes.

The reason why the twisting and tilting mechanism is provided is that it is very dangerous for the worker to perform the subsequent work if the twisting and twisting is still standing, and the twisting and twisting mechanism is provided. This is because the eyes may come into contact with other objects and cause scratches. Normally, the above-mentioned twisting and tilting mechanism is designed so that the twisted and twisted lever that is rocked pushes down the above-mentioned twisted and twisted thread along the longitudinal direction of the steel bar. There is.

[0004]

[Problems to be solved by the device]

 By the way, since the bar steel does not have elasticity, the wire is likely to be displaced even when the binding wire is wound in a tightened state, and the displacement of the wire is particularly remarkable in the longitudinal direction of the bar steel. Therefore, when the twist twist lever is pressed by the twist twist lever, the twist twist stitch does not fall and the wire itself is displaced in the longitudinal direction of the bar steel, or the twist twist portion is formed. Sometimes it just shifts. On the other hand, in order to avoid the wire from slipping, it is sufficient to press near the tip of the twisted eye, but with this, the twisted eye that once fell down due to spring back of the wire will rise again, so it is practical. Not.

Therefore, an object of the present invention is to provide a wire twisting and tilting mechanism capable of surely tilting the twisted eyes in order to ensure the safety of an operator and prevent damage to a contacted object. It is to serve.

[0006]

[Means for Solving the Problems]

 The wire twisting and tilting mechanism according to claim 1 winds a binding wire wound in a loop shape around a body to be bound, and twists the root of the loop of the wire to form a twisted eye. A wire twisting and tilting mechanism for tilting the twisted eyes of the wire, which is equipped in an automatic binding machine for forming and binding, and twisting and twisting means for tilting the twisted eyes from one direction. And a holding means for holding the root of the twisted line and regulating the displacement of the wound wire when the wire is folded down.

Further, a wire twisting and tilting mechanism according to a claim is the wire twisting and tilting mechanism according to claim 1, wherein the holding means has a posture for supporting a root of the twisted eye, The support member is provided so as to be able to shift to a position where the support member retracts from the twisted eye, and the means for twisting the twisted stitch is provided between the support member and the direction opposite to the direction in which the support member supports. The kick member is provided so as to be capable of transitioning between a posture in which the twisted eye is sandwiched between the support member and the support member and a posture in which the support member and the kick member are retracted from the support member. Is characterized by having a predetermined angle with respect to the longitudinal direction of the.

[0008]

[Action]

 According to the wire twisting and tilting mechanism of the first aspect, the twisting and twisting means of the binding wire wound around the body to be bound is tilted from one direction by the twist and twisting means. . On the other hand, since the base of the twisted eye is held by the holding means when the twisted eye is folded down, it is possible to regulate the displacement of the wire that binds the bundled objects.

According to the wire twisting and tilting mechanism of the second aspect, the base of the twisted eye is supported and the displacement of the binding wire is regulated by the change of the support member. . In this state, the kick member is displaced from the direction opposite to the direction in which the support member supports, and the twisted line is sandwiched between the kick member and the support member. As a result, the twisted eye is collapsed at the root portion. Moreover, since the support member and the kick member each have a predetermined angle with respect to the longitudinal direction of the body to be bound, the twisted line is sharply tilted along the support member.

[0010]

【Example】

 Embodiments will be described in detail below with reference to the accompanying drawings. FIG. 1 is a front view showing a schematic configuration of an automatic binding machine A that employs a wire twisting and tilting mechanism according to an embodiment of the present invention. Further, FIG. 2 is a left side view in which a main part in FIG. 1 is enlarged.

Describing with reference to these drawings, the automatic binding machine A is for binding a plurality of round bar steel materials such as a round bar steel material as a bound object, and more specifically, A binding wire W is wound around a rolled steel material in a loop shape, and the root of the loop is twisted to form a twisted line to bind the wire. The schematic configuration of the automatic binding machine A includes a binding machine main body 10, a binding mechanism 20 provided on the front surface of the binding machine main body 10, and binding the above-mentioned steel bar material, and the binding machine main body 10 (not shown). A wire feeding mechanism that is installed inside and that feeds the wire W to the binding mechanism 20 and a wire screw that is provided on the front surface of the binding machine body 10 and that twists the twist formed by the binding mechanism 20. It has a twisting mechanism C.

The bundling mechanism 20 has an annular wire guide ring, which is divided into two and is composed of an upper wire guide ring 21a and a lower wire guide ring 21b, and a wire twisting head 22. The wire guide ring is configured to introduce the above-mentioned steel bar material into the inside thereof and guide the above-mentioned wire W along the guide groove 21c formed on the inner peripheral surface to arrange the wire W in a loop. Further, the upper wire guide ring 21a is rotatable about the pin 23 so that the wire guide ring can be opened and closed. This facilitates the work of introducing the above-mentioned steel bar into the wire guide ring. In addition, in FIG. 1 and FIG. 2, the wire guide ring is in an open state.

Further, paying attention to FIG. 2, the wire twisting head 22 has a columnar end portion, and has two holes punched in a state of crossing each other. The wire twisting head 22 is arranged substantially on the circumference of the wire guide ring. Then, the tying wire W is fed from the wire feeding mechanism to the wire guide ring through one side of the hole, is circulated around the wire guide ring, and is inserted into the other side of the hole, As a result, the root of the loop of the wire W arranged in the loop is carried by the wire twisting head 22. The wire twisting head 22 can be rotated around the axial direction by a motor (not shown) mounted inside the binding machine body 10. Then, the wire twisting head 22 is adapted to twist the root of the loop to form a twisted line by rotating the wire twisting head 22 while carrying the wire W.

The wire twisting and tilting mechanism C tilts the twisted eyes formed by the twisting head 22 from one direction, and twisting and tilting means 30 for tilting the twisted eyes. At this time, it has a holding means 40 for holding the root of the twisted eye and restricting the displacement of the wire W. The holding means 40 includes a support arm 41 as a support member that supports the root of the twisted eye when the twisted eye is tilted down, and a telescopic cylinder 42 that swings the support arm 41. I'm out. The support arm 41 is rotatably supported by a pin 43 on the front surface of the binding machine body 10. The base end 41a of the support arm 41 is connected to the rod 42a of the telescopic cylinder 42. There is. As a result, when the expandable cylinder 42 expands and contracts, the support arm 41 swings around the pin 43. The tube side 42b of the telescopic cylinder 42 is rotatably supported by the cylinder fixing portion 11 provided in the binding machine body 10. Further, the support arm 41 is attached in a state of being slightly inclined with respect to the swinging direction toward the wearer guide ring side. In this embodiment, it is set to 3 degrees. In addition, in this embodiment, a support plate 41b is detachably attached to the tip of the support arm 41 by a bolt 41c. The support plate 41b is formed in a thin flat plate shape so that it can easily support the twisted line. The support plate 41b may be formed integrally with the support arm 41.

Further, the twisting and tilting means 30 twists the twisted stitch supported by the support arm 41 between the support arm and the opposite direction from the direction in which the support arm supports the twisted stitch. It includes a kick arm 31 as a kick member for sandwiching the eye, and a telescopic cylinder 32 for swinging the kick arm 31. The kick arm 31 is rotatably supported by a pin 33 on the front surface of the binding machine body 10. A base end 31a of the kick arm 31 is connected to a rod 32a of the telescopic cylinder 32. As a result, when the expandable cylinder 32 expands and contracts, the kick arm 31 swings around the pin 33. Further, the tube side 32b of the expandable cylinder 32 is rotatably supported by the cylinder fixing portion 12 provided in the binding machine body 10. Further, the kick arm 31 is attached to the wire guide ring side with a predetermined angle inclined with respect to the swing direction thereof. In this embodiment, it is set to about 10 degrees. Further, the tip end portion 31b of the kick arm 31 has a thin wall thickness so that the twisted eye can be sharply tilted.

According to this embodiment, when the bar steel is introduced into the wire guide ring and the twisting head 22 is rotated, the root of the loop of the binding wire W is twisted and twisted. Grains are formed and the above-mentioned steel bars are bound together. Then, the twisted eyes can be tilted as follows. FIG. 3 is a diagram schematically showing how to twist the twisted line, and FIG. 3A shows a state in which the twisted line D is formed. Referring to FIG. 3, first, by shortening the telescopic cylinder 42, the support arm 41 is swung about the pin 43. As a result, the support plate 41b of the support arm 41 supports the root of the twisted line D from one direction, and the deviation of the binding wire W is restricted. In this case, the support arm 41 is inclined toward the wire guide ring side, and the support plate 41b is inclined at 3 degrees with respect to the longitudinal direction of the steel strip. Accordingly, the support plate 41b is arranged so as to bite into the root of the projecting twisted line D at an acute angle (see FIG. 3B).

Next, when the telescopic cylinder 32 is extended in this state, the kick arm 31 is rocked, and the tip of the kick arm 31 is opposite to the direction in which the support plate 41b supports the wire W. It moves to the outside of the support arm 41 from the direction (see FIG. 3C). As a result, the twisted eye D is tilted down between the kick arm 31 and the support plate 41b. Moreover, since the kick arm 31 is inclined toward the wire guide ring side, that is, is inclined at 10 degrees with respect to the longitudinal direction of the bar steel, the twisted line D is formed on the support plate 41b. It is sharply fallen along (see Fig. 3 (d)). Then, the extension cylinder 32 is shortened to retract the kick arm 31 from the support plate 41b, and then the extension cylinder 42 is extended to retract the support plate 41b from the tilted twisted line D. Let

As described above, since the base of the twisted stitch D is held by the support plate 41b when the twisted stitch D is tilted from one direction by the kick arm 31, It is possible to prevent the wound wire W from being displaced. Therefore, as a result of being able to surely tilt the twisted eye D, it is possible to ensure the safety of the operator and prevent damage to the contacted object due to the standing up of the twisted eye D. I can hear it. Moreover, the twisted eye D is sharply tilted by the support arm 41 and the kick arm 31 that have a predetermined angle with respect to the swinging direction. As a result, the springback of the twisted eye D can be prevented, and the twisted eye D can be more surely tilted. As a result, the safety of the operator can be further improved.

The present invention is not limited to the above-mentioned embodiment, and the tip of the kick arm 31 may be replaced with another member like the support plate 41b of the support arm 41. . By doing so, even if the tip of the kick arm 31 is worn, it can be easily replaced, and maintenance is easy. Further, the support arm 41 and the kick arm 31 can be set at other angles as long as the twisted eye D can be sharply tilted.

Further, as a means for swinging the support arm 41 and the kick arm 31, a motor or other known means can be used. Further, the support member and the kick member may be made expandable and contractable so that the twisted eye D can be directly tilted. Besides, various design changes can be made without changing the gist of the present invention.

[0021]

[Effect of device]

 According to the invention of claim 1, when the twisted stitches of the bundling wire are pushed down by the twisting leaning means, the holding means prevents the wire from being displaced. You can surely beat your eyes. As a result, it is possible to ensure the safety of the operator and prevent damage to the contacted object due to the twisted eye contacting another object.

According to the second aspect of the invention, the twist of the binding wire is held by the support member having a predetermined angle with respect to the longitudinal direction of the binding target, Since the kick member having a predetermined angle with respect to the longitudinal direction of the body is sharply tilted, it is possible to prevent the springback of the twisted eye and to more surely tilt the twisted eye. As a result, the safety of the worker can be further improved.

[Brief description of drawings]

FIG. 1 is a schematic front view of an automatic binding machine employing a wire twisting and tilting mechanism according to an embodiment of the present invention.

FIG. 2 is a left side view of a main part in FIG.

FIG. 3 is a schematic diagram showing a procedure for tilting a twisted eye. (A) It is a schematic diagram which shows the state in which the twist line was formed. (B) It is a schematic diagram which shows the state in which the root of the twist eye was supported by the support arm. (C) It is a schematic diagram which shows the state where the twisted eye was fallen down by the kick arm. (D) It is a schematic diagram which shows the state in which the twisted eyes were fallen down.

[Explanation of symbols]

 A automatic binding machine C wire twisting and tilting mechanism D twisting eye 10 binding machine body 20 binding mechanism 30 twisting and tilting means 31 kick arm (kick member) 40 holding means 41 support arm (support member)

Claims (2)

[Scope of utility model registration request] 1. An automatic binding machine for winding a binding wire wound in a loop shape around a bound object, and twisting the root of the loop of the wire to form a twisted line for binding. A wire twisting and tilting mechanism for tilting the twisted eye of the wire, which comprises twisting and tilting means for tilting the twisted eye from one direction, and And a holding means for holding the root of the twisted eye and restricting the deviation of the wound wire. 2. The holding means has a support member which is provided so as to be shiftable between a posture that supports the root of the twisted eye and a posture that retracts from the twisted eye. The tilting means is provided so as to be capable of transitioning between a posture in which the twisted eye is sandwiched between the support member and a direction opposite to the direction in which the support member supports, and the posture is retracted from the support member. The wire twist according to claim 1, further comprising a kick member, wherein the support member and the kick member have a predetermined angle with respect to a longitudinal direction of the bundled objects. Eye-catching mechanism.