JPS6145944Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an apparatus for forming wires for bundling rods and the like.

Normally, when manually binding square timbers, round bars, etc., for convenience of work and to increase the strength of the binding wire, the binding wire is bent to form a circular head shape or a U-shape, and the wire is tied multiple times. ) A rope-shaped material is used. (See Figure 4 A).

Conventionally, when supplying wire to a binding wire forming device, it was fed in a straight line at right angles to the direction of the wire (see Utility Model Publication No. 40-29797, "Manufacturing device for tying wire for construction scaffolding"). ) When formed, it has the disadvantage that it is within the stress limit of the wire and is not sufficiently twisted, so that when the final first rope is removed from the forming device, it will return to its original position.

Therefore, as a bundle wire forming device, our company's patent application No. 1987-28700 ``Bundling wire forming device'' was developed. However, in this device, the forming process is separated into the folding process and the folding process, taking into account the deformation resistance of the grid wire more than necessary. This is inevitably determined by the correlation between
Furthermore, since the movable parts are wide, there are drawbacks such as the need to provide a wide safety shield around this large device.

In addition, this device does not have a mechanism for pressurized correction that exceeds the stress limit, so both ends of the wire that corresponds to the guide spacing part are not twisted and are in a figure-eight shape with the pin, so these parts must not be handled. On top of that, it has the drawback of being dangerous and being discarded as a waste.

This invention was provided in order to eliminate the above-mentioned drawbacks, and the straight number wire can be immediately
This was done by overcoming the idea that the wire would break and bend before penetrating the inside of the wire guide device, and this was done by making the wire guide device itself U-shaped. Therefore, a mechanical bending device is not used, that is, this bending step is omitted, and the space formed by this U-shaped wire guide device is used to provide a wire tensioning device and a device for wrapping the wire. This reduces the space occupied by the machine and makes it compact enough to be used in a corner of the factory, and the movable parts are housed within a U-shaped space, making it easy to ensure safety around the equipment. It can be done.

Next, 1 of the bundling wire forming device according to this invention.
Examples will be described based on the drawings.

FIG. 1 is a plan view of the embodiment device, and FIG. 2 is a front view thereof.

2 is a guide device that guides the straight line W in a U-shape in a horizontal plane, and is provided on the pedestal 1;
A grooved guide roller 21 freely rotates on the pedestal 1 toward one end of the guide device 2, and a known pinch roller 2 provided on the movable base 11 that can slide on the pedestal 1 and driven by a motor 23.
2 and 22, a guide pipe 24 is arranged on the pedestal 1, and the guide pipe 24 is made of overlapping pipes with tapered ends and is made elastic.
A guide pipe 241 is arranged in a straight line from the other end of the guide pipe 241 in which tapered pipes are stacked on top of each other on the pedestal 1 to be freely extendable and retractable, and a stopper 27 is arranged on the movable table 11 at the end of this guide pipe 241. ing.

A movable guide 26 is inserted into the intermediate portion of the fixed plates 25 and 251 having hollow grooves curved in a U-shape of the guide device 2 so as to be slidable to both the inside and outside of the U-shape by the expansion and contraction of a spring 261. has been done.

3 is the pinch rollers 22, 22 and the guide pipe 2
4, an upper blade 31 provided on the movable table 11 between the
The cutter has a lower blade, and also has a device (not shown) for raising and lowering the upper blade 31 and the pinch rollers 22 and 22 in a counterbalance manner.

4 is a wire tensioning device provided on the U-shaped inner pedestal 1 formed by the guide device 2; Guide rail 46,4
A sprocket 44, which is rotated via a chain by the drive of a drive motor 43 provided on a base below the gantry 1;
44, and a screw shaft 45 installed on the frame 1 in parallel with the guide rail 46 so that the sprockets 44, 44 mesh with each other.

Reference numeral 5 denotes a device for guiding a wire provided on the carriage 41, etc., and this is a rod that protrudes from the front surface of the carriage 41 facing the movement guide 26 in the direction of the movement guide 26. The tip of the rod is bent into a key shape. , a rotating claw 51 that can be rotated by a motor 52, and a push plate fixed to the front surface of the cart 41 above the rotating claw 51 so as to protrude toward the moving guide 26 in the same manner as the rotating claw 51. 53 and further the guide plate 25
A pinching device 5 is provided on the frame 1 on both sides of the U-shaped inner side so that the wire W can be pinched using a solenoid.
It consists of 4.

6 is a dimension that allows the stand 11 on which the pinch roller 22, the pinch roller motor 23, the stopper 27, and the cutter 3 are mounted to slide toward or away from the guide plate 25 on the stand 1 according to the product dimensions. This is an adjustment handle, and by rotating it, a pinion engages with a rack 61 extending in the direction of the guide plate 25, causing the table 11 to slide.

Next, the operation and effect of the above embodiment device will be explained.

FIG. 3 is a flowchart for explaining the operation.
The pinch roller 22 is brought into a compressed state by application of a push button switch (not shown), and the upper blade 3 of the cutter 3 is pressed down.
1 has increased. A coiled wire W is pulled out from a drum (not shown), its tip is inserted under the guide roller 21, and then the motor 23
Pinch rollers 22, 22 driven by
In FIG. 1, the guide pipe 24, the forward guide plate 25, the moving guide 26, and the backward guide plate 25
1. It is sequentially guided by the guide pipe 241 and the like, and finally its tip abuts against the stopper 27.

When the tip of the running number wire W comes into contact with the tip detector (nearby switch) L1 provided near the stopper 27, this is applied, and the upper blade 31 descends to cut the number wire W. The pinch rollers 22, 22 rise and the subsequent number line W after the cutting part
transport is stopped.

Further, the driving motor 43 is activated by the application of the tip detector L1, and the sprockets 44, 44 engage with the screw shaft 45 in FIG. 1, so that the truck 11 starts running.
During this traveling, a dog 411 provided on one side of the truck 41 comes into contact with a forward limit position limit switch L2 provided on the left end side of the guide rail 46 in FIG.

Due to the action of this limit switch L2, the trolley 4
1 is stopped. FIG. 1a is an enlarged sectional view of FIG. 1. Immediately before this truck 41 stops, the tip of the push plate 53 moves the moving guide 26 from inside against its spring 261 as shown in FIG.
Press to the left at
Provide a space between 6 and 6. The key-shaped tip of the rotating claw 51 is inserted into this space.

Next, due to the action of a timer which started operating at the same time as the limit switch L2 was activated, the truck 41, which had been stopped after a certain time, begins to move backward to the right in FIG.

Then, the line pinching device passing position limit switch L3 is applied by the dog 411 of the truck 41 that has retreated. This allows the pinching device 54
The center part of the U-shape (the center part of the W-shape) of the wire W that has started to operate and is being pulled out by the rotating claw 51
Pinch from the outside.

Next, the rotating claw 51 is operated to twist the yarn.
The trolley 41 is pulled backward to pull the wire W. In this way, the wire W is pulled out by the rotating claws 51 from the center of the U-shaped guide device 2 into the space formed by the U-shape, and is twisted into a bundling wire like a rope. The rear end of the wire W that is pulled out of the guide device 2 falls between the legs of the stand 1 due to its own weight.

This rear end has almost no gap left by the pinching device 54 and has been pressed and straightened, so even if it falls, the last rope will not return, and the rear end (both ends of the wire) will be sufficiently twisted. This will prevent the ball from bouncing in a figure-of-eight pattern. Therefore, there is no need to be careful in handling these parts, and there is no need to discard them as unnecessary parts.

When the truck 41 moves backward and the dog 411 applies the reverse limit position switch L4, the truck 41 stops, and the rotating pawl 51 stops with its key-shaped tip facing downward due to its own weight. As a result, the circular head of the bundle wire W that has been formed is naturally detached from the rotating claw 51 due to its own weight and falls between the legs of the pedestal 1. Further, by applying the limit switch L4, the pinch rollers 22, 22 are simultaneously pressed down, and the upper blade 31 is pressed down.
is raised, and the subsequent straight wire W having the cut portion as its tip is conveyed.

By repeating this process, 1
Binding wires are formed one by one for each book. The device according to this invention makes the guide device U-shaped, does not use a mechanical bending device, and omits this step, and furthermore, utilizes this U-shaped space to By installing a wire tensioning device and a wire wrapping device here, we can reduce the space occupied by the machine and make it more compact, allowing it to be used even in a corner of the factory. Since it fits within the space, the safety of the surrounding area is easily ensured.

Moreover, the binding wire formed by this device is
The first rope never returns, and the ends of the line never jump into a figure-eight shape.

This invention is not limited to the above-mentioned embodiments, but can be broadly encompassed as long as it does not violate the gist of utility model registration. For example, by making the stopper 27 movable separately from the cutter 3 and making the backward guide plate 251 shorter than the forward guide plate 25, it is possible to create an apparatus for producing a product as shown in FIG. It also includes a device that forms a single straight binding wire W1 with only a small portion being threaded and the other portions being a single straight binding wire W1.

[Brief explanation of drawings]

The drawings show one embodiment of the device according to the invention, and FIG. 1 is a plan view, FIG. 2 is a side view, FIG. 3 is a flowchart for explaining the operation, and FIG. 4 is a manufactured example. Indicates the binding wire. 2: Line guide device, 21: Guide roller, 2
2: pinch roller, 23: pinch roller motor, 24, 241: guide pipe, 25: guide plate, 26: moving guide, 261: spring, 27: stopper, 3: cutter, 4: tension device, 41: Dolly, 43: Drive motor, 44: Chain sprocket, 45: Screw shaft,
46: Guide rail, 5: Tracking device, 51:
Rotating claw, 52: Rotating claw motor, 53: Push plate, 54: Pincer device, W: Wire.

Claims (1)

[Scope of utility model registration request] In an apparatus for forming a rope-shaped binding wire having a circular head by bending and connecting the wire, the wire guide device has a U-shaped wire guide device having a wire drawer opening provided approximately in the center, and the wire guide device has a U-shaped wire guide device. A pinching device provided near the wire pull-out opening in the U-shaped space and a wire guide device pull out the wire from the wire pull-out opening in the U-shaped space, and also pull out the wire from the wire pull-out opening in the U-shaped space. and a rotating device for rotating the wire, which is movable in the direction, and after inserting the wire into the wire guide device, the wire is moved into the U-shaped space of the wire guide device from the wire pull-out opening by the rotating device. , pull out the wire while holding it with the pinching device, and draw the wire in a W-shape together with the wire stuck in the wire guide device, and then pull out the U.
A wire forming device for binding, characterized in that the central part of the character-shaped space curves toward the end of the U-shape.