JPS62111069A - Steel bar bundling apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Object of the invention 1 The present invention relates to a device for tying reinforcing bars.

Lost! Traditionally, to bind reinforcing bars, hook-shaped backers were used, two reinforcing bars were inserted into a C-shaped elastic metal plate, etc., and tied together, or a band-shaped metal There were automatic machines that wrapped the board around the binding part in a ring and fastened it at both ends, or wrapped a long binding wire, twisted the wires, and cut the ends.

λ哩! -Solution 1 □ end” (4 Oka, 7 ahead, however,
The above-mentioned backer binding is due to the increasing shortage of reinforcing bar craftsmen.
The reality is that this work is carried out using commonly used tools, and due to unfamiliarity, poor bundling is detected during reinforcing bar arrangement inspections, and there are problems in that it takes a long time to tie, resulting in poor efficiency.

In addition, special metal fittings are expensive, and conventional automatic machines have a rough structure, are prone to failure, and are impractical.6 The present invention solves the above-mentioned conventional problems. The purpose is to provide a reinforcing bar binding device that improves work efficiency and is easy to handle.

[Structure 1 of the Invention The reinforcing bar binding device of the present invention includes a main body case of a driving means such as a cylinder, a fixed claw extending below the main body case, and a fixed claw for fixing four Iγ and iL. A base member is pivoted to the base member and is pivoted to the base member, and as the base member moves downward, it is rotated inward by the cam surface of the fixing claw described in 1. A work that closes the material! This device is characterized by being composed of a JJ claw and a housing case into which the binding material is fed one by one to the operating claw.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

In Fig. 1 and Fig. fjS2, reference numeral 1 denotes a main body of a sling, in which a piston 2 is housed so as to be freely slidable downward. Compressed air is supplied into the cylinder chamber la through a hose 3 and a switching valve 4, so that the piston 2 is pressed downward against a spring 5. The switching valve 4 is operated by an operating rod 6 provided on the handle portion 7. 8 is an air bleed hole when the piston 2 descends, and 9 is an air bleed hole when the piston 2 moves down.

A piston rod 10 is attached to the lower side of the piston 2 and extends to the lower side of the sill main body 1.

A base member 1 is attached to the lower end (tip) of the piston rod 10.
1 is installed.

As is clear from FIG. 2 and FIG. 3, a stopper part 11a is cut out and formed in the lower part of one side (right side in FIG. 2) of the base member 11, and a binding material 12 is formed in this. The upper end curved portion 12a of is brought into contact with the upper end curved portion 12a.

Further, on both sides of the binary base member 11, actuating pawls 13.1 are provided.
3 is rotatably pivoted.

A torsion spring 14 is attached to the pivot portion 13a of the operating claw 13, and elastically presses the operating claw 13 against the outer cam claw 15.

The cam pawls 15 are fixedly installed on both sides of the lower part of the sill main body 1 and extend downward in parallel. A cam portion 15a is formed to be operated toward the direction.

Reference numeral 16 denotes a storage case that accommodates a large number of binding materials 12 and sends them to the actuating claw 13;
is pushed to the left (Figure 2). These binding materials 12 are bonded to each other so that they can be separated by a slight shearing force.

Next, the operation of the L-book embodiment device will be explained.

First, when the operating rod 6 is squeezed in the state shown in FIG. 1, the switching valve 4 is opened, compressed air flows into the cylinder chamber IIi from the hose 3, and the piston 2 is pushed down.

When the base member 11 is lowered with the lowering of the piston 2, the stopper portion 11a pushes down one binding material 12, and the adjacent binding material group 12 is lowered, as shown in FIG. rjS3.
′ is cut and separated.

In order to prevent the separated binding material 12 from falling, the base member [1] is magnetized and the binding material 12 is attached to it R1.

When the base member 11 is further pushed down, as shown in FIG. 4, the %li material 12 descends while sandwiching both flυ1 of the reinforcing bar 18, and at the same time, the operating claw 13 also descends.

When the lower end of the binding material 12 reaches the lower side of the reinforcing bar 18, the operating claw 13 is rotated inward by the cam frK15a of the cam claw 15, and as shown in FIG. Wrap it around the bottom of 18.

At this time, in order to make the ends of the binding material 12 intersect,
It is necessary that the tips of the operating claws 13 intersect. For this reason, as shown in FIG.
, with respect to the axis of the base member 11 in the direction of the hand force.
a) Install it obliquely so that the tip of the actuating claw 13 is in the seventh position.
As shown! Make sure to cross so that you can cross.

When the bundling is completed, the operating rod 6 is released and the switching valve 4 is activated to stop the supply of compressed air from the hose 3. At the same time, when the air bleed hole 9 is set to 1if, the piston 2 is moved upward by the spring 5. Then, the base member 11 is raised to return to its original state.

In the above embodiment, the base member 11 etc. are actuated by compressed air, but the present invention is not limited to this, and any driving means may be used as long as it moves the base member 11 etc. up and down.

In addition, the binding material 12 can be used depending on the width and length of the reinforcing bars 18, such as when bundling crossed reinforcing bars 18 as shown in FIG.
It is preferable to prepare several types of binding materials 12 or to configure the actuating claw 13￥f so that it can be adjusted to accommodate several types of binding materials 12.

[Advantageous Effects of the Invention 1 (1) Since the binding material is simple, it can be provided at low cost, and because it is supplied in a cassette type, efficiency is high.

(2) It is a simple operation (n) of simply inserting the binding material into the reinforcing bar while holding the binding material between the base member and the operating claw, and closing the lower end inward (n), so the device configuration is simple and there are fewer failures.
Easy to operate.

[Brief explanation of drawings]

FIG. 1 is a partially sectional front view showing an embodiment of the reinforcing bar binding VC device of the present invention, FIG. 2 is a side sectional view taken along the line ■-■ in FIG. 1, and FIG. Figures 4 and 5 are explanatory diagrams of the operation, Figure 6 is an explanatory diagram showing the installation state of the operating claw, and Figure 7 is an illustration of the movement of the tip of the operating claw. The explanatory diagram, FIG. 8, is an explanatory diagram of an example of binding of crossed reinforcing bars. 1... Schilling body, 1a... cylinder chamber, 2
...Piston, 3.Hose, 4.Switching valve,
5... Spring, 6... Umesaku rod, 7... Handle portion, 8, 9... Air vent hole, 10... Piston rod, 11... Base member, lla... Stopper Part, 12... Binding material, 13... Operating claw, 13a...
Pivot joint, 14... Flexible spring, 15... Cam pawl, 1
5a...Cam portion, 16...Accommodation case, 17...
Spring, 18...reinforcing bar.

Claims (1)

[Claims] A main body case of a driving means such as a cylinder, a fixed claw extending below the main body case, a base member that is moved up and down by the driving means between the fixed claws, and a base member that is pivotally connected to the base member and that It is characterized by being composed of an operating claw that rotates inwardly by the cam surface of the fixed claw to close the binding material as the fixed claw moves downward, and a housing case that feeds the binding material one by one into the operating claw. A reinforcing bar binding device.