JPH08199815A - Reinforcement binding device - Google Patents

Abstract

PURPOSE: To firmly bind the reinforcement by the U-shaped binding wire. CONSTITUTION: The binding wire 2 hooked to a hook 31 is wound around reinforcements 3, 4 by moving a guide arm 33 and feeding a steel belt 32, and the binding wire 2 of the hook 31 is hooked and twisted by a binding lever 40 to achieve the binding. At the same time, the binding wire is released and cut by a holding and cutting device 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforcing bar bundling device for mechanically bundling rebars after reinforcing bars in a reinforcing bar work using a binding wire.

[0002]

2. Description of the Related Art Manual binding work of reinforced bar requires a lot of labor and time, and requires a skilled and specialized worker. Further, especially for a large-diameter reinforcing bar, the binding wire also has a large diameter, and binding by manual work becomes heavy work, resulting in poor work efficiency.

On the other hand, as a mechanical binding device, for example, the devices disclosed in Japanese Utility Model Publication No. 4-48282 and Japanese Patent Publication No. 4-77103, the binding material is preliminarily processed into a predetermined length and shape. If it takes time and labor, and for the diameter difference of the reinforcing bar to be bound, use a binding material with a length and shape corresponding to the diameter of the reinforcing bar each time, or for a small diameter reinforcing bar, bind it longer than necessary. There was a problem such as using wood.

Further, the above-mentioned device and actual Kaihei 1-1770.
The device disclosed in Japanese Patent No. 33 also has a problem that the end portion of the binding wire is excessively twisted and broken, and a sufficient reinforcing bar tightening force cannot be obtained.

Further, Japanese Patent Laid-Open No. 6-115509 discloses a technique for twisting two U-shaped binding wires. However, since such a known technique feeds a binding wire to form a U-shape, the feeding is not smoothly performed when the binding wire is thick.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and frees workers from heavy work,
In addition to improving work efficiency, a U-shaped binding wire can be easily made, and the same binding wire can be used for rebars with different diameters, and there is no waste of the binding wire. It is intended to be provided.

[0007]

According to the present invention, a binding wire drum for storing a binding wire, and a binding wire from the binding wire drum is bent in a U shape to hold an end portion and cut in the middle. A gripping and cutting device, a steel belt device with a binding wire hook that hooks this U-shaped binding wire, sends it out to the reinforcing bar side, and pulls it up;
A binding lever for hooking the loop portion of the letter-shaped binding wire and twisting the binding portion is provided.

[0008]

In the reinforcing bar binding device configured as described above, the U-shaped portion of the binding wire is sent out to the reinforcing bar side by the binding wire hook of the steel belt device and pulled up, and the loop of the pulled up U-shaped binding wire. The part is hooked with a binding lever and twisted to bind the reinforcing bars, and the binding wire gripping and cutting device opens the binding wire for cutting.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1, the device of the present invention is shown in FIG.
The drum 1 containing the drum 1 and the binding wire 2 from the drum 1 are bent into a U shape to hold the end portion, and the gripping / cutting device 10 capable of cutting the middle, and the U shape binding wire 2 to the hook 31. A steel belt device 30 for hooking, sending out to the side of the reinforcing bars 3 and 4 and pulling it up, and a binding arm 40 for hooking the binding wire 2 pulled up and twisting and binding it.
These members are attached to a frame (not shown).

Referring also to FIGS. 2 and 3, the gripping and cutting device 10 includes a fixed disc cam 11 and the cam 11.
On the other hand, a yoke 13 rotated by a motor 12, and a grip portion 14 and a cutting portion 19 arranged at both ends of the yoke 13 are configured.

The grip portion 14 is provided with a locking portion 15 formed on the yoke 13 side and a movable portion 16 provided so as to face the locking portion 15, and the movable portion 16 is the shaft 1
It is pivotally attached by 7 and is urged to the cam 11 side via a spring 18. In addition, reference numerals 15a and 16a in the drawing are tooth portions for surely sandwiching and fixing the binding wire 2.

The cutting portion 19 is provided with a fixed blade 20 and a movable blade 21 like the grip portion 14. Then, the movable portion 16 and the movable blade 21 are adapted to sandwich, fix and cut the binding wire 2 when lifted by the cam portion 11a of the disc cam 11, respectively.
“A” is formed in a substantially semicircular portion of the disc cam 11.

Referring also to FIGS. 4 and 5, the steel belt device 30 includes a steel belt 32 having a hook 31 at its tip, a guide arm 33 for guiding the steel belt 32, and a steel containing the steel belt 32. It comprises a belt drum 34 and a feeding device 35 for feeding the steel belt 32, and can be moved up and down and moved horizontally by means not shown. The hook 31 has a notch 31a.

As shown in FIG. 6, the guide arm 33 is formed in a T-shape so as to hold the reinforcing bars 3 and 4 at the lowered and horizontally moved position. A pair of groove portions 33a for guiding the steel belt 32 are formed on the inner side surface.

The bundling arm 40 comprises a horizontal arm portion 4
1 and a drive unit 42 that is bent in a U-shape from the upper end of the arm unit 41. The drive unit 42 is fixed to the output shaft of a turning motor 43, and the turning motor 43 is slidably supported by a horizontal slide table 45 via a slider 44.

Next, the mode of binding will be described.

The end of the binding wire 2 from the drum 1 is held by the gripping portion 14 of the gripping / cutting device 10 in advance. Therefore, while holding the end portion, the yoke 13 is rotated about 180 degrees in the arrow direction, and the binding wire 2 is hung around the hook portion 31 of the steel belt device 30 in a U shape and stopped. Then, the middle of the binding wire 2 is inserted into the cutting portion 19 (FIG. 1).

Next, the steel belt device 30 is lowered, horizontally moved to the binding arm 40 side and then raised, and stopped at a position where the guide arm 33 holds the reinforcing bars 3 and 4. Then, the feed roller 35 is operated to feed out the steel belt 32, the hook 31 is moved along the guide arm 33, and the binding wire 2 is wound around the lower surfaces of the reinforcing bars 3 and 4 and pulled up (FIG. 6). In this state, the binding arm 4
As shown in FIG. 4, the tip of the arm portion 41 of No. 0 has the hook 3
It is directed toward the inside of the notch 31a.

Next, the binding arm 40 is moved to the right and raised, the binding wire 2 is hooked and lifted by the arm portion 41, and the tip is inserted into the midway portion 2a of the binding wire 2 (FIG. 7).

Next, the binding arm 40 is swung to bind the binding wire 2 and the yoke 13 of the gripping / cutting device 10 is joined.
Is slightly turned about 180 degrees in the direction of the arrow (see FIG. 3) to release the holding of the binding wire 2 by the holding portion 14 and the cutting portion 19
Then, the drum 1 side of the binding wire 2 is cut. Then, the turning of the binding lever 40 is stopped with a predetermined torque to end the binding (FIG. 8).

[0022]

Since the present invention is configured as described above, it has the following effects. (1) It is possible to free workers from heavy work and improve work efficiency. (2) The U-shaped binding wire can be surely bound. (3) Therefore, it is possible to reduce the cross-sectional area of the binding wire, use a binding wire with low rigidity, and prevent breakage of the binding wire. (4) Therefore, even if one binding wire is broken, the other one can hold the binding. (5) It is not necessary to process the binding wire in advance and the waste of the binding wire can be eliminated by feeding out and using a continuous binding wire as much as necessary.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing a main part of FIG.

FIG. 3 is a side view of the grip portion shown in FIG.

FIG. 4 is a view on arrow A in FIG.

FIG. 5 is a view on arrow B of FIG.

FIG. 6 is a front view showing a state in which a binding wire is wound around a reinforcing bar by a hook.

FIG. 7 is a front view showing a state in which a binding wire is hooked and lifted by a binding arm.

FIG. 8 is a front view showing an end state of binding.

[Explanation of symbols]

 1 ... Drum 2 ... Bundling wire 3, 4 ... Reinforcing bar 10 ... Gripping / cutting device 11 ... Disk cam 12 ... Motor 13 ... Yoke 14 ... Gripping part 15 ... ..Locking portions 15a, 16a ... Tooth portions 16 ... Movable portion 17 ... Shaft 18 ... Spring 19 ... Cutting portion 20 ... Fixed blade 21 ... Movable blade 30 ...・ Steel belt device 31 ・ ・ ・ Hook 31a ・ ・ ・ Notch portion 32 ・ ・ ・ Steel belt 33 ・ ・ ・ Guide arm 34 ・ ・ ・ Steel belt drum 35 ・ ・ ・ Feed device 40 ・ ・ ・ Bundling arm 41 ・ ・ ・Arm 42 ... Drive 43 ... Swing motor 44 ... Slider 45 ... Slide table

Claims (1)

[Claims] 1. A binding wire drum for storing a binding wire, and a gripping / cutting device capable of bending the binding wire from the binding wire drum in a U shape to hold an end portion and cutting the middle. A steel belt device equipped with a binding wire hook that hooks this U-shaped binding wire and sends it out to the reinforcing bar side to pull it up, and a binding part that hooks and twists the loop portion of the sent U-shaped binding wire A reinforcing bar binding device characterized by having a lever.