JPS60223768A - Winding-starting edge cutting apparatus for coiled wire material - Google Patents

Abstract

PURPOSE:To easily and automatically cut a metal wire at the winding starting edge which is taken-out from a coiled wire material by a disc member, by a clipping member set at a cutting position. CONSTITUTION:The coil winding starting edge 2a is taken outside from the side edge surface of a coiled wire material 1 by a disc member 12 which advances and retreats so as to penetrate through the shaft-core hollow part of the coiled wire material 1. In this state a driving motor 17 for turning a cutting tool is driven, and a cutting tool 9 is turned with a cutting-tool supporting plate 19 through gears 17a, 15a, and a shaft 15, and positioned for the root part 2b at the winding starting edge 2a, and brought into stop. Then, the cutting tool 9 is operated by a driving cylinder 18, and a pair of cutters 9a of the cutting tool 9 are closed, and the root part 2b at the winding starting edge 2a is cutting- worked by the cutters 9a.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention I 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 (2) as shown in FIG. 1 at the final stage of the wire manufacturing process. And when winding,
After winding the wire 2 fed through the winding machine along the outer circumferential line of the temporary winding drum (Fig. 2) attached to the rewinding machine, the two groups of wire rods are bundled with the binding hand 3, and then , the coil-wound wire material l is removed from the temporary winding drum.

By the way, the temporary winding cylinder has a plurality of claw pieces 4 as shown in FIG.
a is provided in a circular shape protruding toward one side of the turntable 5, and when winding the wire rod 2, the winding start end 2 of the wire rod 2 is
Bend a toward the center of the temporary roll $4, and also attach an arbitrary claw piece 4a.
By engaging with and rotating the turntable 5 in the direction of the arrow, the wire 2 is wound around the outer periphery of the temporary winding drum 4 in a coil shape.

Therefore, a bent winding start end 2a is formed on the inner peripheral surface side of the coil-wound wire material l after winding, as shown in FIG. 1, which projects toward the core. If such winding start end 2a remains as it is, it is extremely dangerous for workers who handle the wire rod 2, so after the above-mentioned bundling, the position shown by the solid line arrow in FIG. 3, that is, the root of the bent winding start end 2a. By cutting the vicinity of the portion 2b, the protruding state of the winding start end 2a is eliminated. However, even if the above-mentioned cutting operation is attempted, since the root portion 2b is in close contact with the two bundled wire groups, it is not possible to accurately and cleanly cut only the root portion 2b. Therefore, the work procedure for cutting the root portion 2b is to first grasp the winding start end 2a with a gripping tool such as pliers, pull it apart in the direction of the white arrow A as shown by the imaginary line, and then rotate the root portion 2b at high speed. It was cut with a saw. As described above, the cutting operation of the winding start end 2a often relies on manual labor, and is an extremely complicated operation, which causes a decrease in productivity.

The upper winding start end 2a is fixedly set at the lower position of the temporary winding drum 4 as shown in FIG. The winding start end 2a is located on the lower surface side of the coil-wound wire material 1. Therefore, when cutting, it is necessary to reverse the coil-wound wire material l so that the winding start end 2a is on the upper surface 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 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.

In other words, the configuration of the present invention that achieves the above object includes a disk member that advances and retreats so as to penetrate the axial hollow portion of the coil-wound wire material, and a disk member that is bent outward from the side end surface of the coil-wound wire material by the disk member. The invention comprises a scissoring member for cutting the metal wire at the end of the winding start, and a driving means for moving the scissoring member to a cutting position and operating it.

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 cutting device for coil-wound wire material according to the present invention, in which below the roller conveyor 13 that conveys and supports the coil-wound wire material l, there are
A winding start end take-out mechanism 6 is provided with a disk member 12 that passes upward through the core hollow part 14 of the coil-wound wire material 1, and above the roller conveyor 13, the winding start end taken out is disposed. A mobile cutting mechanism 7 having a cutting machine 9 for cutting is provided. That is, the winding start end take-out mechanism 6 has a disk member 12 attached to the tip of a rod lla of a disk member drive cylinder 11, and the disk member 12 is inserted concentrically with the through hole 13a of the roller conveyor 13 (see FIG. 7). When the coil-wound wire l is carried into a predetermined position of the roller conveyor (the position where the shaft core hollow part 14 of the coil-wound wire l and the through-hole 13a concentrically overlap), the disk member 12 is moved by the drive of the cylinder 11. 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 l, 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 hanging rail 10 arranged above the roller conveyor 13, and is directed toward the standby position of the coil-wound wire material 1 while being suspended from the hanging rail 10. It is configured so that it can be moved. A cutting tool 9 provided in the movable cutting mechanism 7 is driven by a cutting tool actuating device 8, and in this embodiment, an iron-shaped cutting device is mounted. The movable cutting mechanism 7 configured in this manner moves along the hanging rail 1O, and stops the cutting tool 9 at the optimum position that can correspond 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 proximity switch.

When cutting the wire 1 using the cutting device constructed in this way, the cutting operation is carried out according to the procedure shown in FIGS. 5 to 7. First, using a suitable reversing device, turn the roller conveyor 13 so that the winding start end 2a of the coil-wound wire material l is on the top side.
After placing the coil-wound wire l on top, the roller conveyor 13
The coil-wound wire material l is conveyed to a predetermined position by moving the top. When the shaft core hollow part 14 and the through hole 13a are aligned on the same shaft, the coil winding wire material l 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 lifted in such a manner that the winding start end 2a rests on the upper surface of the disk member 12. Furthermore, disk member 1
The reason why 2 is tapered upward (trapezoidal cross section) is to allow the disc member 12 to pass through smoothly even if it hits the inner surface of the coil winding wire l. If it is too small, slippage 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. As the winding start end 2a is lifted as if being dragged by the disk member 12 by the lifting described above, a part of the wire rod 2 following the winding start end 2a separates from the wire bundle (Fig. 5). When it separates from the wire bundle, the drive cylinder ll is temporarily stopped and the cutting tool 9 is cut while the winding start end 2a is still lifted from below.
Waiting for the 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. A scissor-shaped cutting blade 9a.

Since the cutting tool 9a is for cutting at the stop position, the cutting tool 9 is run with the legs spread apart in advance, so the cutting tool 9 is moved to the desired cutting point of the wire rod 2 following the chain winding start end 2a. In order to correctly move and place the
- VI line arrow cross-sectional equivalent view) and Figure 7 (■-■ in Figure 4)
It is recommended to do it as shown in the diagram (corresponding to the line arrow view). That is, the cutting blades 9a, 9a in the open leg state straddle the wire rod 2 lifted by the disk member 12, and are cut at the root portion 2b of the winding start end 2a so as to pass through the wire rod 2 without contacting the wire rod 2.
Move up to. As shown in FIG. 7, one of the cutting blades 9a, 9a passes above the wire 2, but the non-lifted end 2C of the lifted wire 2 is shown in FIGS. 5 and 6.
As is clear from the figure, since the bundled wire rods are held on the east side by the connecting tip 3, one of the cutting blades 9a does not come into contact with the wire rods 2 when passing above the non-lifting end 2c. , and the cutting tool 9 at the desired position of the root portion 2b.
When the cutting blade 9a is stopped, the drive device 8 is activated to cut the cutting blade 9a.
, 9a are sandwiched together to cut the wire 2 sandwiched between the cutting blades 9a and 9a. When the wire root portion 2b is cut in this way, a cutting blade 9a is formed.

With 9a closed or reopened, the cutting tool 9 is retreated to the original standby position, and the drive cylinder 11 is actuated to lower the disk member 12 to the original standby position (solid line). 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 to the east side of the wire rod again. Then, the disc 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 l that has been transported, and the cutting tool is transported to a desired cutting location to cut the winding start end 2a. However, any mechanism for transporting the cutting tool may be used. For example, cutting blades 9a, 9a
In the case where the wire rod is moved downward from the upper standby position to pinch the wire rod root 2b and then cut, a different execution device may be designed. Fig. 8 is a schematic side view showing another embodiment of the present invention. , FIG. 9 is a plan view corresponding to FIG. 7 (IX-
FIG. The movable cutting mechanism 7 disposed above the roller conveyor 13 (7) 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 support bracket) 16
A cutting tool support plate 19 is attached to the lower end of the shaft 15 which is disposed through the support bracket 16, and a drive motor 17 for rotating the cutting tool is attached to the upper surface of the support bracket 16. Bevel gear 17a
, 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 l that is on standby. On the other hand, the cutting tool 9 is driven to cut by operating the cutting tool drive cylinder 18. For example, in order to drive the cutting blades 9a, 9a which are in an open state so as to sandwich them together, the drive cylinder 18 is actuated to drive the rod 18a. Move in the direction of arrow C. The cutting operation of the wire rod 2 by the cutting device configured in this way is performed as follows. First, similar to the above embodiment, the roller conveyor 13
The winding start end 2a of the coil-wound wire material l placed on top is lifted up by the disk member 12. When the winding start end 2a protrudes from the side of the coil-wound wire material l as shown in FIG. 5, the cutting tool 9, which is waiting in the state shown in FIG. 2a to the vicinity of the root portion 2b. That is, since the cutting tool 9 is on standby with the cutting blades 9a and 9a kept open, the coil turns during the above-mentioned turning movement. Therefore, as shown in Fig. 9, the wire rod 2 is lifted up.
It is possible to turn the cutting blades 9a, 9a without contacting the cutting blades 9a, 9a. In order to stop the cutting tool 9 at the optimum position on the base portion 2b, a limit switch (indicated by a phantom 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 rotation direction. The drive motor 17 may be stopped by the detection signal from the drive motor 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, thereby cutting the root portion 2b of the wire 2°. When the winding start end 2a is cut off from the base portion 2b in this manner, the lifting support of the wire rod 2o by the disk member 12 is released and the wire rod 2o returns to the original wire rod bundle. Thereafter, the disk member 12 is lowered and retracted below the roller conveyor 13, and the coil-wound wire material l is carried out to the next process. As mentioned above, when the coil-wound wire material l is carried into the cutting device position, it must be placed so that the winding start end 2a is on the upper surface side. FIG. 10 shows an example of a top surface reversing device for a coil-wound wire material l applied to the present invention, and the top and bottom surface reversing device is disposed on the front side of the cutting device. That is, the reversing device holds the wire l fed along the conveyor 24 in the reversing box 23 having a U-shaped cross section, and then inverts the first reversing box 23 by 180'' to remove the wire l.
The reversed wire rod l is carried out from the reversing box 23 in the direction penetrating the plane of the paper. 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 a rack 29 is engaged with the pinion gear 28. Reference numeral 30 denotes a reversing cylinder, and by driving the cylinder 30, the rack 29 is raised and lowered, and a pinion key 728 is rotated, thereby rotating the reversing box 23 by 180'. Note that 23a1* indicates a roller conveyor which is directed in the same direction as the conveyor 24, and 23b indicates a roller conveyor which carries out conveyance in the direction penetrating the page.

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

(mata) Since the winding start end of the coil-wound 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 Qj 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 situation of the coil-wound wire material, Fig. 3rA 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 diagrams showing the cutting process. FIG. 8 is an explanatory diagram showing another embodiment of the present invention. FIG. 9 is a plan view corresponding to FIG. 7, and a 1θ diagram. 1A and 1B respectively show schematic explanatory views of a reversing device applicable to the present invention. l...Coil winding wire material 2a... Winding start end l2...
・Disc member 9... Cutting tool applicant Kobe Steel, Ltd. Figure 1

Claims (1)

[Claims] A device for cutting a chain winding start end of a coil-wound wire material in which the winding start end of the metal wire material is bent toward the core, the disc member moving forward and backward so as to pass through the axial center hollow part of the coil-wound wire material. , a scissor 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 a drive means for moving the scissor member to a cutting position and operating it. A winding start end cutting device for a coil-wound wire material, characterized by comprising: