JPH0244748B2 - KOIRUMAKISENZAINOMAKIHAJIMETANSETSUDANSOCHI - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for cutting a bent end portion formed for locking at the winding start end of a coil-wound wire material, that is, a winding-start end cutting device for a coil-wound wire material.

Wire rods such as welding wires are sometimes shipped after being re-wound into a coil-wound wire rod 1 as shown in FIG. 1, for example, at the final stage of the wire manufacturing process. When winding, the wire rod 2 sent out through the winder is wound along the outer peripheral surface line of the temporary winding drum (Fig. 2) attached to the rewinder, and then the wire rods 2 are separated into two groups. are bundled with a binding band 3, and then the coil-wound wire material 1 is extracted from the temporary winding drum.

By the way, as shown in FIG. 2, the temporary winding drum has a plurality of claw pieces 4a protruding from one side of the turntable 5 in a circular shape. By bending the winding start end 2a in the centripetal direction of the temporary winding drum 4 and engaging with an arbitrary claw piece 4a, and rotating the turntable 5 in the direction of the arrow, the wire 2 is coiled around the outer periphery of the temporary winding drum 4. Wrap it into a shape.
Therefore, a bent winding start end 2a is formed on the inner peripheral surface side of the coil-wound wire material 1 after winding, as shown in FIG. 1, which projects in the centripetal direction. If such winding start end 2a is left as it is, it is extremely dangerous for the workers who handle the wire rod 2, so
After the bundling, the projecting state of the winding start end 2a is eliminated by cutting at the position shown by the solid line arrow in FIG. 3, that is, near the root portion 2b of the bent winding start end 2a. However, even if the above-mentioned cutting operation is attempted, the root portion 2b is in close contact with the two bundled wire groups, so if the root portion 2b is not
It is not possible to accurately and cleanly cut only the Therefore, the work procedure for cutting the base portion 2b is to first grasp the winding start end 2a with a gripper such as pliers and pull it apart in the direction of the white arrow A as shown by the imaginary line, and then cut the base portion 2b at high speed. It was cut with a rotary saw. As described above, the work of cutting the winding start end 2a often relies on manual labor, and is an extremely complicated work, resulting in a decrease in productivity.
In addition, the upper winding start end 2a is connected to the temporary winding drum 4 as shown in FIG.
After being engaged and set in the lower position, the coil is manufactured by successively stacking and winding upward, so that the winding start end 2a is located on the lower surface side of the coil-wound wire material 1 at the end of winding. Become. Therefore, when cutting, it is necessary to turn the coil-wound wire material 1 upside down so that the winding start end 2a is on the top side as shown in FIG. Furthermore, since such cutting work is not only complicated as described above but also dangerous, there is a desire for a device that can cut automatically.

The present invention has been made in view of the above-mentioned circumstances, and it is an object of the present invention to provide a cutting device that can easily cut off the bent portion formed at the winding start end of a coil-wound wire material.

That is, the structure of the present invention that achieves the above object is as follows:
A disk member that advances and retreats so as to penetrate the axial hollow part of the coil-wound wire material, and scissors that cut the metal wire at the winding start end that is flexed outward from the side end surface of the coil-wound wire material by the disk member. The gist is that the scissors include a member and a driving means for moving the scissor member to a cutting position and operating the same.

EMBODIMENT OF THE INVENTION The structure and effect of this invention are demonstrated concretely below based on Example drawing. FIG. 4 is a partially cutaway explanatory view illustrating the coil-wound wire material cutting device according to the present invention. A mobile type winding start end take-out mechanism 6 is provided with a disk member 12 passing through the winding start end 14 upwardly, and a cutter 9 is provided above the roller conveyor 13 for cutting off the taken out winding start end. A cutting mechanism 7 is provided. That is, the winding start end take-out mechanism 6 has a disk member 12 attached to the tip of a rod 11a of a disk member drive cylinder 11, and the disk member 12 is inserted into the through hole 13a of the roller conveyor 13 (see FIG. 7).
It is arranged concentrically with
When the coil-wound wire material 1 is carried into the position where the coil-wound wire rods 3a are concentrically overlapped, the cylinder 11 is driven so that the disc member 12 rises so as to pass through the shaft core hollow part 14. Therefore, the outer diameter of the disk member 12 must be slightly smaller than the inner diameter of the shaft core hollow part 14 of the coil-wound wire material 1, and must be large enough to scoop up the winding start end 2a. However, their effects will be discussed later.

On the other hand, the movable cutting mechanism 7 is suspended from a suspension rail 10 arranged above the roller conveyor 13, and is moved toward the standby position for the coil-wound wire material 1 while being suspended from the suspension rail 10. It is configured so that it can be moved. and mobile cutting mechanism 7
The cutting tool 9 provided in the cutting tool 9 is driven by a cutting tool actuating device 8, and in this embodiment, a scissor-shaped cutting device is mounted. The movable cutting mechanism 7 configured in this way moves along the hanging rail 10,
The cutting tool 9 is stopped at the optimum position corresponding to the base of the winding start end 2a to be cut.
When the cutting tool 9 finishes cutting the base of the winding start end 2a, it starts moving again in the direction of returning to the original standby position and stops at the standby position. Incidentally, such a stop position is detected by a detection mechanism such as a limit switch or a nearby switch.

When cutting the wire 1 using the cutting device constructed in this manner, the cutting operation is carried out in the steps shown in FIGS. 5 to 7. First, using an appropriate reversing device, the coil-wound wire 1 is placed on the roller conveyor 13 so that the winding start end 2a of the coil-wound wire 1 is on the top side, and then the coil-wound wire 1 is moved on the roller conveyor 13 to wind the coil. The wire rod 1 is conveyed to a predetermined position. When the shaft core hollow part 14 and the through hole 13a are aligned on the same shaft, the coil winding wire material 1 is stopped, and then the drive cylinder 11 is driven to raise the disk member 12. At this time, the winding start end 2a is bent so as to protrude into the shaft core hollow part 14, so that the disc member 12 is bent as shown in FIG. In the process of rising, this winding start end 2a is scooped up and placed on the upper surface of the disk member 12.
It is lifted up as if it were being ridden. Furthermore, disk member 1
The reason why 2 is tapered upward (trapezoidal cross section) is to allow the disk member 12 to pass through smoothly even if it comes into contact with the inner surface of the coil-wound wire material 1. If the upper area is too small, slipping will occur when the winding start end 2a is scooped up, so it is desirable to have a trapezoidal cross section with an appropriate ratio. By lifting above, the winding start end 2a
is lifted as if being dragged by the disk member 12, so a part of the wire rod 2 following the winding start end 2a separates from the wire rod bundle (FIG. 5). In this way, wire rod 2
When it separates from the wire bundle, the driving of the drive cylinder 11 is temporarily stopped and the winding start end 2a is kept lifted from below to wait for the cutting tool 9 to move. In this state, the movable cutting mechanism 7 is moved in the direction of arrow B in FIG. 4 and stopped at the desired stop position C as described above. The scissor-shaped cutting blades 9a, 9a are
Since the cutting tool 9 is used to clip and cut at the stop position, the cutting tool 9 must be run with the legs spread apart in advance, so the cutting tool 9 can be moved correctly to the desired cutting location of the wire 2 following the winding start end 2a. 6th to arrange
Figure (corresponding cross-sectional view taken along the - line in Figure 4) and Figure 7
It is recommended to carry out the procedure as shown in the figure (a view corresponding to the - line arrow in Fig. 4). That is, the cutting blade 9 in the open state
a, 9a are the wire rods 2 lifted by the disk member 12;
It moves to the root portion 2b of the winding start end 2a while straddling the wire rod 2 and passing through it without coming into contact with the wire rod 2. In addition, as shown in FIG. 7, the cutting blades 9a, 9
One side of a will pass above the wire 2, but the non-lifted end 2 of the wire 2 that has been lifted
As is clear from FIGS. 5 and 6, since c is held on the wire bundle side bound by the binding band 3, one of the cutting blades 9a is attached to the non-lifting end 2.
It does not come into contact with the wire rod 2 when passing above c. When the cutting tool 9 is stopped at the desired position of the root portion 2b, the drive device 8 is activated to cut the cutting blade 9.
Cutting blades 9a, 9a are sandwiched between a and 9a.
The wire rod 2 sandwiched between them is cut. After cutting the wire rod base 2b in this way, the cutting tool 9 is moved back to the original standby position with the cutting blades 9a, 9a closed or reopened, and the drive cylinder 11 is operated to return the disk member 12 to its original position. Standby position (solid line)
descend to On the other hand, the wire rod 2 that has been completely cut is lifted and supported by the disk member 12 at the same time as the winding start end 2a is removed, so that the wire rod end is pulled back toward the wire bundle side again. Then, the disk member 12
is lowered and returned to its original position, and the roller conveyor 13 is started again to transport it to the next process. In the above embodiment, the cutting tool 9 is moved horizontally and linearly with respect to the coil-wound wire material 1 that has been transported, and the cutting tool is transported to a desired cutting location to cut the winding start end 2a. Although a mechanism is shown, any mechanism for transporting the cutting tool may be used. For example, if the cutting blades 9a, 9a are moved downward from the upper standby position to pinch the wire root 2b and then cut, a different execution device may be designed. 8 is a schematic side view showing another embodiment of the present invention, and FIG. 9 is a plan view corresponding to FIG.
This is a view corresponding to the line arrow view). In these figures, the same reference numerals are given to the same components as in the above embodiment. The movable cutting mechanism 7 disposed above the roller conveyor 13 is rotatably suspended via a bracket 16 attached to a casing (not shown), and the cutting tool 9 and the cutting tool drive cylinder 18 are mounted on the support bracket. The cutting tool support plate 19 is attached to the lower end of the shaft 15 which is disposed through the shaft 16 .
A drive motor 17 for rotating the cutting tool is attached to the top surface, and the output of the drive motor 17 is connected to a bevel gear 17.
a, 15a to the shaft 15 to rotate the cutting tool support plate 19. That is, the cutting tool 9 pivots together with the support plate 19 using the shaft 15 as a pivot axis. This turning locus is designed to be a circular locus that is approximately equal to the inner circumferential circle of the shaft core hollow portion 14 of the coil-wound wire material 1 that is on standby. On the other hand, the cutting tool 9 is driven to cut by the actuation of the cutting tool drive cylinder 18. For example, when driving the cutting blades 9a, 9a in the open state so as to sandwich them together, the drive cylinder 18 is operated. It is activated to move the rod 18a in the direction of misprint C. The cutting operation of the wire rod 2 by the cutting device configured in this way is performed as follows. First, similarly to the embodiment described above, the winding start end 2a of the coil-wound wire material 1 placed on the roller conveyor 13 is
lift it up. Then, as shown in FIG.
When a jumps out, the cutting tool 9, which is waiting in the state shown in FIG. 8, is rotated and moved to the vicinity of the root portion 2b of the winding start end 2a. That is, the cutting tool 9 has cutting blades 9a, 9a.
Since it is waiting with its legs spread, the inner circumference 1 of the coil-wound wire material 1 is
Turn while straddling A. Therefore, the ninth
As shown in the figure, the cutting blade 9 is attached to the lifted wire rod 20.
It is possible to turn without making contact between a and 9a. In order to stop the cutting tool 9 at the optimum position on the base portion 2b, a limit switch (indicated by an imaginary line 21) for detecting the position of the winding start end 2a is attached to the front side of the cutting blade 9a in the direction of rotation. The drive motor 17 may be stopped by a detection signal from the limit switch 21. In this case, the limit switch 21 is mounted at a suitable position on the lower surface of the support plate 19. When the cutting tool 9 is positioned in this manner, the drive cylinder 18 is driven to operate the cutting tool 9, and the root portion 2b of the wire 20 is cut. When the winding start end 2a is cut off from the base portion 2b in this manner, the lifting support of the wire rod 20 by the disk member 12 is released and the wire rod 20 returns to the original wire rod bundle. Thereafter, the disk member 12 is lowered and retreated below the roller conveyor 13, and the coil-wound wire material 1 is carried out to the next process. As mentioned above, when the coil-wound wire material 1 is carried into the cutting device position, it must be placed so that the winding start end 2a is on the upper surface side. 1st
FIG. 0 shows an example of a device for vertically reversing the coil-wound wire material 1 applied to the present invention, and the vertically reversing device is disposed on the front side of the cutting device. That is, the reversing device holds the wire 1 fed along the conveyor 24 in the reversing box 23 having a U-shaped cross section, and then reverses the reversing box 23 by 180 degrees to switch the upper and lower surfaces of the wire 1. The wire rod 1 thus obtained is carried out from the reversing box 23 in the direction penetrating the page. Incidentally, the reversing box 23 is supported on one side by a pinion shaft 25 and on the other side by a disk 27, and the disk 27 is rotatably supported by a drum shaft 31. A pinion gear 28 is attached to the pinion shaft 25, and the pinion gear 28
is engaged with a rack 29. Reference numeral 30 denotes a reversing cylinder, and by driving the cylinder 30, the rack 29 is raised and lowered, and the pinion gear 28 is rotated, thereby rotating the reversing box 23 through 180 degrees. Note that 23a indicates a roller conveyor that faces in the same direction as the conveyor 24, and 23b indicates a roller conveyor that carries the paper in the direction penetrating the page.

Since the present invention is configured as described above, the following effects can be obtained.

Since the winding start end of the coiled wire can be automatically cut, it can be omitted.

Since the winding start end can be separated from the wire bundle without relying on the operator, the working environment is greatly improved.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing the coil-wound wire material, Fig. 2 is an explanatory view showing the winding state of the coil-wound wire material, Fig. 3 is an explanatory view of the main part of Fig. 1, and Fig. 4 is the cutting device of the present invention. FIGS. 5 to 7 are explanatory views showing the cutting process. FIG. 8 is an explanatory view showing another embodiment of the present invention. FIG. 9 is a plan view corresponding to FIG. 7.
The figures each show a schematic illustration of a reversing device applicable to the present invention. 1... Coil winding wire material, 2a... Winding start end, 1
2... Disc member, 9... Cutting tool.

Claims (1)

[Claims] 1 A device for cutting the winding start end of a coil-wound wire material whose winding start end of the metal wire material is bent in the centripetal direction, and a disk member that advances and retreats so as to penetrate the axial hollow part of the coil-wound wire material. a scissor cutting member for cutting the metal wire at the winding start end that is bent outward from the side end surface of the coil-wound wire material by the disc member; and moving the scissor cutting member to a cutting position and actuating it. 1. A winding start end cutting device for a coil-wound wire material, characterized in that the device comprises a driving means for cutting a winding start end of a coil-wound wire material.