JPH0436360Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a feeding device for reinforcing bar binding material used during reinforcing bar binding work.

(Prior Art) Reinforcing bar binding material work in reinforcing bar assembly work is generally done manually, and the method is to wrap binding wires one by one around the intersections of the reinforcing bars and tie them with a hooker.

(Problem that the invention aims to solve) However, it takes time and effort to hold the binding wires in hand and manually wrap them one by one, and the more the number of binding points increases, the more the above disadvantages become more serious. It was expected.

An object of the present invention is to eliminate the above-mentioned disadvantages by automatically supplying binding material with a simple configuration.

(Means for Solving the Problems) This device is more effective when used in combination with a reinforcing bar binding device, and its features are as follows.

This device includes a binding material holder, a pressing body support frame,
It consists of a guide and a stopper plate.

The above-mentioned binding material holder has a space inside which can store the binding material in the shape of a reverse groove, and has a discharge port for discharging the binding material on one horizontal side, and directs the binding material toward the discharge port on the other side. It is equipped with a sending body that sends out the
A pressure spring is provided to bias the delivery body toward the discharge port. The pressing body support frame is constituted by a rodless cylinder, and a pressing body that moves up and down by air is provided on one side of the cylinder. The stopper plate is composed of a band-shaped spring plate. The binding material holder is attached to the one side surface of the pressing body support frame that faces the discharge port. The pressing body presses the upper end of the binding material discharged from the discharge port downward. The guide is provided in the pressing body support frame in communication with the discharge port, and is capable of guiding the binding material and discharging it from the lower end. The stopper plate opens and closes the discharge port, has a leading end connected to the pressing body, a rear end connected to the unwinding body, and applies a spring force in a direction to raise the pressing body. ing.

(Function) When the binding material is fed into the guide by the sending body and the upper end of the binding material is pressed downward by the pressing body, this binding material slides inside the guide and is discharged from the lower end, and the binding material is discharged from the lower end side. It is hung around the reinforcing bars for binding arranged in the area. When the binding material W is sliding within the guide, the stopper plate closes the discharge port of the binding material holder to prevent the next binding material from being sent out into the guide.

(Example) Examples of the present invention will be described below.

In the supply device Ma shown in FIGS. 1 and 2, the binding material holder 1 is attached to one side of the pressing member support frame 2. As shown in FIG. The binding material holder 1 has large and small inverted U-shaped holder frames 3 and 3a stacked together in an internal space, and houses therebetween a plurality of inverted U-shaped binding wires W which are separably arranged in series. An opening on one side (left side in FIG. 1) of the binding material holder 1 serves as a discharge port 1a for the binding wire W.
The opening on the other side serves as an insertion port. An inverted U-shaped sending body 4 is inserted from this insertion opening, and this sending body is always connected to the binding wire W by the spring force of the spring 5.
is biased toward the discharge port 1a by a spring.

Further, the pressing body support frame 2 is composed of a rodless cylinder, and the tip of the pressing body 6, which moves up and down by air supplied into the pressing body support frame, protrudes from one side of the pressing body support frame. . This pressing body is
This is to press the upper end of the binding wire W downward. The upper end of the pressing body 6 is connected to the tip of a stopper plate 7 made of a band-shaped spring plate. Figure 1: Spring force is applied in a clockwise direction. The stopper plate 7 is a shutter plate that opens and closes the discharge port 1a of the holder 1.

Further, a guide 9 formed in an inverted U shape and communicating with the discharge port 1a is provided on one side of the pressing member support frame 2, and the binding wire W can pass through sliding portions on both sides of the guide. The lower end of the guide 9 has reinforcing bars R for binding,
A storage section 10 is formed to store Ra inside.

This device Ma is an automatic binding device Mb shown in Fig. 3.
If the reinforcing bar tying machine M is configured in pairs with the reinforcing bar tying machine M, the supply and tying of the tying wire can be completely automated, so please refer to Figures 3 and 4 for the specific configuration of this automatic tying device. and explain.

The rotating shaft 11 passes through a substrate 12 disposed at the bottom, and a drive motor 1 attached to the substrate is attached to the lower end.
It is coaxially connected to the motor shaft of No. 3. Rotating axis 1
1 is supported by a bearing 15 attached to a mounting portion 14 on a substrate 12. Rotating shaft 11
A bladed rotor 16 is fixed to the upper end of the rotor.
Eight blades 16a are provided radially around the outer periphery of this rotor, and the spacing between each blade is such that the binding wire W can pass through. Further, below the rotor 16, an upper chuck 17, which is a chuck for gripping the upper binding wire, is attached to the rotating shaft 11 and has a T-shaped cross section. Below the upper chuck 17, a lower chuck 18, which is a cylindrical chuck for gripping the lower binding wire and has the rotating shaft 11 located at its axis, is provided on a movable plate 19 so as to be rotatable about the rotating shaft. . The lower part of the lower chuck 18 forms a fixed part 18a via a bearing 20, and this fixed part is integrated with the plate 19. A gap 21 is provided between the upper end opening of the lower chuck 18 and the lower outer periphery of the upper chuck 17 through which the binding wire W can pass. Lower chuck 18
The inner circumferential portion thereof is an inclined surface 18b which is inclined downward from the upper end opening toward the axis. A guide cylinder 22 is disposed on the outside of the lower chuck 18, and its lower part is fixed to the upper and lower mounting parts 14. The guide cylinder 22 is in contact with the outer circumferential surface of the lower chuck 18, and its upper part expands outward toward the upper end opening to guide the binding wire W to easily pass through the gap 21. The moving plate 19 extends outward through the hole 22a of the guide tube 22, and both ends are fixed to the ram 24 of the cylinder 23 fixed on the base plate 12 with bolts 25. Therefore, when the ram 24 is expanded or contracted, the movable plate 19 moves up and down, and the lower chuck 1 is moved up and down accordingly.
8 goes up and down.

Although not shown, the supply device Ma and the binding device Mb are each held by a holding frame.

Next, the usage method and binding work will be explained.

As shown in FIG. 4, a binding device Mb is placed below the intersection of the previously assembled reinforcing bars R and Ra, and the rotor 16 is opposed to the bottom of the reinforcing bars Ra at a constant interval.
Then, as shown in Fig. 3, the guide 9 of this device Ma
When the reinforcing bars R and Ra are positioned in the storage section 10 of the guide, the pressing body support frame 2 is activated, and the pressing body 6 is moved downward, the binding wire W sent out from the binding material holder 1 into the guide is stored in the guide. The lower part of the binding wire that has been pushed out to the lower part and further pushed out downward from the storage part is passed from between the blades 16a of the rotor, through the open end of the guide tube 22, through the gap 21, and into the lower chuck 18, as shown by the chain line in FIG. Get into it. As a result, the binding wire W is wrapped around the reinforcing bar R. Thereafter, as shown by the chain line in FIG. 4, the cylinder 23 is driven to extend the ram 24, and the moving plate 19 is raised.
is held between the binding wires W. Then, when the motor 13 is started, the rotor 16 rotates as shown in FIG. 3, the blades 16 twist the binding wire W, and bind it below the lower reinforcing bar Ra. At this time, both the upper and lower chucks 17 and 18 also rotate synchronously. Rotor 16
Since the blades 16a hook the binding wire W, the twisting position Wa of the binding wire can be placed directly below the reinforcing bar Ra, which takes up the deflection of the binding wire and strengthens the binding force.

The pressing body 6 is used to prevent the bundle from escaping during binding.
The binding wire W is held down without being raised until the binding is completed.

After the bundling is completed, air is supplied from below the presser support frame 2, and the spring force of the stopper plate is used to raise the presser body 6 and return it to its original position, and the stopper plate 7 opens the discharge port 1a. The binding material W is sent out to the guide 9 again by the spring force of the delivery body 4, and the intersection points of adjacent reinforcing bars are bound together in the same manner as described above.

Although the binding material is made of wire in the above example, it may be made of a plate having a constant width. Further, the reinforcing bars may be inserted into the storage portion 10 from the side, and are not limited to the lower part as in the above example. Note that the storage section does not necessarily need to be provided.

If the position of the rotor of the bundling device Mb can be adjusted up and down, even if reinforcing bars Ra with different reinforcing bar diameters are located above the rotor, the rotor can rotate smoothly without coming into contact with the reinforcing bars. As a method of vertical adjustment,
A method of attaching the rotor 16 to the rotating shaft 11 so that its position can be adjusted, the rotating shaft 11 is integrated with the motor 13, and the rotor 16 is attached to the substrate 12 by, for example, a cylinder.
There are ways to install it so that it can move up and down.

In addition, when pre-assembled reinforcing bars become large, multiple feeding devices Ma can be suspended from the gate-shaped support frame, rails can be laid down below, and a single binding device Mb can be moved on these rails. It may be configured.

(Effects of the invention) According to the invention, a configuration is adopted in which a pressing body support frame composed of a rodless cylinder is provided, and the binding material is pressed down by a pressing body provided on one side of the pressing body support frame, The overall structure can be simplified and made compact, and the binding material can be automatically and reliably supplied to the intersections of reinforcing bars, and the work of supplying the binding material can be performed simply and quickly. The stopper plate has the function of opening and closing the discharge port of the binding material holder and the function of the return spring for the above-mentioned pressing body.In other words, since one member has two functions, the configuration is even simpler. It can be purified.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view, Fig. 2 is a left side view of Fig. 1, Fig. 3 is a partially sectional side view of the binding machine, and Fig. 4 is a partially cutaway front view.
The figure is a partially sectional front view of the binding device. 1... Binding material holder, 1a... Discharge port, 2...
Pressing body support frame, 4... Delivery body, 5... Pressing spring, 6... Pressing body, 7... Stopper plate, 8... Rewinding body, 9... Guide, Ma... Feeding device, R,
Ra...Reinforcing bar, W...Binding material.

Claims (1)

[Scope of claim for utility model registration] A binding material holder, a pressing body support frame, a guide,
The binding material holder has a space inside which can store the binding material in the shape of an inverted groove, and has an outlet for discharging the binding material on one side in the horizontal direction, and an outlet for discharging the binding material on the other side. Equipped with a delivery body that sends the material toward the discharge port,
A pressure spring is provided that biases this delivery body toward the discharge port side. The above-mentioned pressure body support frame is composed of a rodless cylinder, and a pressure body that moves up and down by air is provided on one side of the frame. Yes, the stopper plate is composed of a band-shaped spring plate, the binding material holder is attached to the one side of the pressing body support frame opposite to the discharge port, and the pressing body The guide presses the binding material discharged from the outlet with the upper end facing downward, and the guide is provided in the pressing body support frame in communication with the discharge port, and guides the binding material and presses the binding material from the lower end. The stopper plate opens and closes the discharge port, and its tip is connected to the pressing body, its rear end is connected to the unwinding body, and the stopper plate has a spring in the direction of raising the pressing body. A reinforcing bar binding material supply device characterized by applying force.