JPH0436929B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application: The present invention relates to a guide structure for a binding wire of an automatic binding device for wire binding mainly steel materials such as various shaped steels.

Conventional technology: Generally, when shipping long materials such as shaped steel from a factory to a customer, multiple materials are bundled according to the weight suitable for transportation. Iron wire is used as the binding material, and conventionally, the binding material is wrapped in a single layer around the object to be bound. Naturally, such a binding operation is performed by an automatic machine. However, with conventional single-wrap binding, depending on the external shape of the object to be bound,
Occasionally, the wires may become loose during transportation and collapse, and wires may break when the bundle is heavy or the wires are large and heavy. In order to prevent such defects, it is possible to increase the number of binding points or to strengthen the binding force. but,
According to the former method, the time required for binding becomes longer and the cost increases. According to the latter, there is a risk that the iron wire may stretch and break during transportation.

In order to solve these problems, a method is needed that can firmly bind the iron wire used as the binding material without reducing its strength. As a countermeasure, it is easy to think that it would be possible to wrap the iron wire twice around the object to be tied at the binding section of the binding machine, instead of wrapping it in two layers instead of wrapping it in one layer in the past. It was difficult to perform the operation automatically.

Problem to be solved: When attempting to bind items using iron wire in this way, conventional binding devices tie the iron wire around the object by wrapping it only once, and then
Heavy winding was not possible due to the difficulty of winding the iron wire.

The present invention solves these problems and removes the winding guide ring (referred to as guide ring) from the wire supply section, which is the most operational problem, when the wire is wound twice. To provide a tying unit in which a wire end is transferred past a twisting head part and a lashing operation is performed reliably after the wire end is wound around a required amount.

Means for Solving the Problems: The present invention provides a device for binding iron wire (wire), in which a guide ring for wire feeding has two guide grooves, and the wire is connected to the wire twisting head of the guide ring. A wire guide element is provided on the end receiving side, having a guide from the first guide groove to the second guide groove and a groove for introducing the wire from the second guide groove to the wire end insertion hole of the torsion head. The structure is as follows.

This wire guide element is a feature of the invention and is adapted to be used not only for double windings of the wire, but also for single windings if preferred.
That is, a guide groove is provided for allowing the wire to enter the insertion hole of the torsion head immediately after being wound once, and a guide groove for allowing the wire to enter the insertion hole of the torsion head after being wound twice. The structure is such that blocks of wire guide elements are switched and moved laterally.

That is, the present invention provides: An automatic binding machine in which a wire is passed through a guide ring that goes around objects to be bound, the wire is cut to a required length, and a knot is tied by rotating a twisting head. The wire guide element has two guide grooves consisting of a first guide groove and a second guide groove; a wire guide element is installed on the receiving side of the wire end with respect to the torsion head of the guide ring; A first guide groove with one side sloped for guiding the wire from the first guide groove of the ring to the second guide groove, and a wire end insertion hole of the torsion head from the second guide groove of the guide ring. a wire double-winding guide section with a second guide groove having a deep end to guide the wire; the wire that has gone around the first guide groove of the guide ring enters the wire end insertion hole of the twisting head It has two types of guide parts: a single winding guide part that immediately guides the wire; and a wire guide part that can be selectively switched to single winding and double winding by sliding the wire guide element in the lateral direction; automatic tying. It is a device.

Embodiment: Hereinafter, one embodiment of the apparatus of the present invention will be described in detail with reference to the drawings.

Note that the present invention will be described in detail with respect to a structure in which the guide ring can be opened and closed by dividing it in the vertical direction.

1 to 4 show the improved essential parts of the bundling unit of the present invention, which are attached to a bundling device that uses known iron wire as a bundling material, and which is attached to a wire feeder. A wire guide ring 10 for binding is attached to the front surface of the main body 1 in which a drive device 50 that combines a wire twisting drive device 3 and a wire twisting drive device 3 is provided with two guide grooves 12 and 13. .

This wire guide ring 10 for binding is divided into upper and lower halves, and the upper guide ring piece 11 is connected to the main body 1.
It is connected via a bracket 7 to the piston rod 8' end of a trunnion-mounted fluid pressure operating cylinder 8 (hereinafter simply referred to as a guide ring opening/closing cylinder) attached to the front upper part, and is vertically movable around a pivot pin 9. When opened, objects to be bound can be received in the binding guide ring 10 and taken out. 11' is a lower guide ring piece.

At the upper position of the wire twisting head 5 of the guide ring 10, a binding iron wire (hereinafter referred to as the wire) that has passed through the first guide groove 12 of the guide ring 10 and made one round is inserted into the second guide groove 13. A wire guide element 20 is provided for introduction. This wire guide element 20 includes a first guide groove 21 for switching the wire from the first guide groove 12 to the second guide groove 13, and a wire end insertion hole from the second guide groove 22 to the torsion head 5. 2nd leading to 5″
The guide grooves 22 are arranged side by side, and a guide groove 23 is carved which can be used even when switching to single winding operation. The first guide groove 21 has a slope formed on one side so that the wire end entering from the guide groove of the guide ring 10 is guided to the second guide groove 13 side. The second guide ring 22 has its lower side deeper than the first guide groove 21 so that the wire end can be guided smoothly into the wire end insertion hole 5'' of the torsion head 5. Another guide groove 23 connects one guide groove 12 of the guide ring 10 to one
The tip of the looped wire is carved diagonally so that it is guided into the wire end insertion hole 5'' of the torsion head 5.Such a wire guide element 20 is inserted into a horizontal sliding groove 26 provided on the side of the main body 1. The cylinder 25 is arranged so that the bottom surface portions are slid together and the operating cylinder 25 is used to switch between double winding and single winding.
The piston rod 25' is connected to the piston rod 25'.

The guide ring 10 has a wire guide groove 12, a wire guide groove 12, and a wire auxiliary receiving roller 15 at an appropriate interval at least on the side near the fixed side torsion head 5.
13. This receiving roller 1
A bracket 14 supporting the wire is supported by a pin 16 at its base so that when the wire is tightened for lashing, the wire is tilted outward by the tension and the wire can be removed from the guide groove. This bracket 14 is provided with a return spring (for example, a torsion spring fitted over the pin portion) so that it can return to its original state after the wire is removed.

The wire twisting head 5 has oblique wire insertion holes 5' and 5'' in different directions, similar to those in conventional binding machines, and is rotated by a drive unit 3 via a differential gear mechanism. Also, around this twisting head 5, a receiving piece 6 for bending the end of the binding wire, a drive control unit, a binding wire cutting mechanism, etc. are made using known means. 2' is a feed drum of the wire feeder 2. .2'' is a presser roller, and 4 is a wire conduction hole.

According to the apparatus of the present invention configured in this manner, the upper half of the guide ring 10 is raised and lowered to receive the object to be bound inside the ring 10. Next, the wire feeder 2 is activated to feed the binding wire 40. During this start-up, the guide element 2 for wire guidance
0, as shown in FIG. 1, the piston rod 25' of the operation cylinder 25 protrudes, and the first guide groove 21 and the second guide groove 22 correspond to the guide grooves 12 and 13, respectively. There is.

The wire 40 fed by the feed drum 2' and presser roller 2'' of the feeder 2 passes through the wire passage hole 4, passes through one insertion hole 5' of the wire twisting head 5, and first passes through the guide ring 10.
enters the first guide groove 12 of. When the wire 40 travels along the first guide groove 12 and reaches the wire guide element 20, it is guided by the slope of the first guide groove 21 facing the first guide groove 12. The second guide groove 1 of the guide ring 10
Can be switched to 3. When the wire 40 continues to be fed, the end of the wire 40 passes in front of the torsion head 5, is guided to the lower second guide groove 13, and makes one round again.

When the tip of the wire 40 eventually reaches the wire guide element 20, it enters the insertion hole 5'' of the wire twisting head 5 through the second guide groove 22, and enters the recess provided in the receiving piece 6 located below. At this point, the feeding operation of the feeder 2 is stopped (the driving operation of each part is set in advance by a predetermined program in the control unit).Then, the driver 3 of the torsion head 5 is activated, and first the wire is The end is bent.Then, the feeder 2 is reversed and the wire 40 wound twice is pulled back along both guide grooves 12, 13 of the guide ring 10.Then, this wire 40 is wound around an object to be bound (not shown).
It is further tightened. When the wire 40 is pulled back by the required amount, the drive of the feeder 2 is stopped. The wire is cut by the rotation of the cutter (not shown) attached to the five wire twisting heads, and then the stopper 31, which had been locking the rotation of the twisting head 5, releases the locking force by the operation cylinder 32 behind it, and the drive machine The rotational force of 3 is transmitted to the twisting head 5 to twist the wire ends, and the wire 40 secures the object to be bound. The end of the wire is removed from the insertion hole by rotating the twisting head 5 several times. When the torsion head 5 rotates a required number of times, the stopper 31 fits into the locking groove of the head 5 to stop the rotation, and the wire end bending operation section returns to its original position.

A wire auxiliary receiving roller 15 is arranged to face the guide grooves 12 and 13 of the guide ring 10.
When the wire 40 is drawn, the tension force causes the wire 40 to be pushed away from the position facing the guide groove and rotated to the outside, so that it does not prevent the wire 40 from coming out of the guide groove.

The above is a case of double winding the wire, and if the object to be bound can be bound in a relatively stable state, in order to wind the wire once as in the conventional case, the piston rod 25' of the operation cylinder 25 should be moved back, and the wire guide element 2 should be
As shown in FIG. 5, the other guide groove 23 is
By switching to match the first guide groove 12 of the guide ring 11, bundling can be performed in the same manner as before.

Effects of the invention: According to the present invention, two guide grooves are provided so that the bundling wire can be wound twice in the bundling unit, and the wire that is fed out from the torsion head passes in front of the screw head on the second turn. Now you can move the wire from the first one to the guide groove of the second one and automatically double-wrap the wire without having to force it, so you can automatically tighten it and make a strong bundle without applying excessive tension to the wire. Now it can be carried out on a machine.

[Brief explanation of drawings]

FIG. 1 is a partially vertical front view of the device of the present invention, FIG. 2 is an enlarged view of FIG. 1, FIG. 3 is a vertical sectional view of the wire guiding switching block, and FIG. The perspective view, FIG. 5, is a diagram showing an embodiment in which the guide element is switched to a single winding. 1...Main body, 2...Wire feeder, 3...
...Torsion drive, 5...Torsion head, 5'...
Wire insertion hole of torsion head, 5''...Wire end insertion hole of torsion head, 10...Wire guide ring, 11...Upper guide ring piece, 11'...
...Lower guide ring piece, 12...First guide groove, 1
3...Second guide groove, 14...Bracket, 15
... Wire auxiliary receiving roller, 20 ... Wire guide element, 21 ... First guide groove, 22 ...
Second guide groove, 23... Another guide groove, 25...
...operating cylinder of the wire guide element, 25'...
...Piston rod, 26...Sideways sliding groove, 40
……wire.

Claims (1)

[Scope of Claims] 1. In an automatic binding machine that passes a wire inside a guide ring that goes around objects to be bound, cuts the wire to a required length, and rotates a twisting head to make a knot and bind the wire, the guide ring has the following features: having two guide grooves consisting of a first guide groove and a second guide groove; a wire guide element installed on the receiving side of the wire end with respect to the torsion head of the guide ring; the wire guide element: A first guide groove with one side sloped to guide the wire from the first guide groove to the second guide groove, and a wire end of the torsion head inserted through the second guide groove of the guide ring. a wire double-wound guide section with a second guide groove having a deep end so as to guide the wire into the hole; It has two types of guide parts: a single winding guide part that immediately guides the wire; and a wire guide element that can be selectively switched between single winding and double winding by sliding the wire guide element laterally; Binding device.