JPS6135049B2 - - Google Patents

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention is directed to a wide coil wound around the outer periphery of a strip coil made of a thin metal plate.
~ Concerning the cutting device for coil bands tightened into 3 and multiple strips, it is possible to press the upper or lower surface of the coil according to various coil diameters, or to the coil surface using a swing motion by turning, so that it can be cut without damaging the coil surface. This is a packaging band cutting device that cuts by making the wedge blade reliably enter the underside of the band in a wedge-like manner.

(Prior art) Strip coils manufactured by continuous hot rolling or continuous cold rolling usually have a band made of metal hoop material to prevent the tip of the coil from unraveling during transportation or shipping during the manufacturing process. The outer periphery of the coil is tightened or the tip of the coil is welded.

Tightening by tip welding makes unpacking difficult,
Recently, most of the belts have been used as a tightening method because the welded parts become defects in the product during processing, which deteriorates the product yield.

Band tightening is becoming fully automatic and mechanized, and automatic band tightening machines are being installed at newly established factories, but band cutting still requires manual input with scissors, and in rare cases semi-automatic cutters are used. That's about it.

Further, as an automated example, the method using the apparatus shown in FIG. 1 will be explained. In the figure, 1 is a wedge blade, 2 is a band, 3 is a coil, 4 is a tatsuchi roll, 5 is a cutting frame body, and the wedge blade 1 is a It is fixedly attached to the retainer 1', and by pressing the lower surface of the wedge blade 1 onto the surface of the coil 3 and sliding on the surface, the tip of the wedge blade 1 is positioned below the side surface of the band 2. The band 2 comes into contact with the band 2, and further enters its lower surface to cut the band 2. still,
FIG. 1 is for explaining the operation of the wedge blade, and other parts such as the upper blade are not shown.

(Problems to be Solved by the Invention) However, the above system has the following problems.

(1) The surface of the coil 3 fastened with the band 2 is often corrugated, and in this state, it is difficult to securely grasp the approximately 1 mm thick band 2 and insert the tip of the wedge blade 1 into its underside. Become.

(2) Also, as shown in Figure 2, when one cutting device is applied to other coils with different outer diameters, when the device is attached to the surface of the coil 3, the tatsuchi roll installed on the cutting device In position 4,
Since the difference in outer diameter of the coil causes a difference as shown in the figure a, it becomes difficult for the tip of the wedge blade 1 to reliably touch the surface of the coil 3.

(3) Since the installation interval of the Tatsuchi Roll 4 is fixed, it is difficult to apply it to various coils with different numbers of band threads and coil widths.

(Means for Solving the Problems) The present invention provides a device that solves the above problems, and according to this, within the same axis,
A frame body having a plurality of eccentric tatsuchi rolls, each of which is selectively used by a gear, is provided so as to be able to face the fastening surface of the packaging band, and a movable frame that reciprocates in the band cutting direction is provided within the frame body, and a movable frame is provided within the frame body, and the movable frame A bracket is provided, a wedge blade holder is attached to the bracket which receives pressure from a spring and rotates around an eccentric pin, a wedge blade is fixed to the wedge blade holder, and a link action is provided along the wedge blade. A multi-strip packaging band cutting device is obtained, which is characterized by being provided with a cutting blade that moves up and down.

(Example) Examples of the present invention will be described below based on the drawings.
Fig. 3 is a front view of the device of the present invention, Fig. 4 is a side view of Fig. 3, Fig. 5 is a sectional view taken along the line C--C of Fig. 4, and Fig. 6 is an enlarged view of the tip of the cutting wedge blade. Figure 7 is the third
8 is a detailed view of the tatsuchi roll portion in the figure, FIG. 8 is a sectional view taken along the line AA in FIG. 3, and FIG. 9 is a sectional view taken along the line BB in FIG. 7.

In the figure, 5 is a frame constituting the cutting device of the present invention,
6 is a pin for pin jointing the frame 5 with the main body, 7
A cutting movement frame, which will be described later, is held by guide rails provided at several locations within the frame body 5. Reference numeral 8 denotes a cutting moving frame, and the frame is provided with moving rollers 9 for holding the guide rail 7 from left and right or top and bottom. Furthermore, the cutting movement frame 8 has a fourth
A bracket 8' shown in the figure is provided, a drive motor 10 is fixed to the bracket 8', and a pinion 11 fixed to the shaft of the drive motor is attached to a frame 5 provided opposite to the pinion 11. It meshes with a fixed rack 12. Further, a wedge blade bracket 8'' shown in FIG. 5 is suspended from the cutting movement frame 8, and side plates 13 for supporting eccentric pins and wedge blade holders, which will be described later, are fixed to both sides of the bracket 8''.
4 is a wedge blade receiver, which is supported by the side plate 13 with an eccentric pin 15. Reference numeral 16 denotes a spring receiver supported by the side plate 13, which houses a spring 17 for pressing down the wedge blade receiver 14 as shown in the figure, and has a link device, which will be described later, passing through it. Tip of wedge blade bracket 8″ and spring receiver 1
6 has a clearance c and a key portion d in mounting the wedge blade receiver 14, and the wedge blade receiver 14 is slightly rotatable around the eccentric pin 15 by the clearance c. This rotatable amount is provided to accommodate the difference a caused by the difference in the diameter of the various coils suitable for fingers, which is a problem with the conventional device shown in FIG.
18 is a blade that cuts the band 2 on the side surface of the wedge blade 1;
9 is a return spring, 20, 21, 22 are links, and 23 is a cutting cylinder. When the cutting cylinder 23 operates, the cutting blade 18 is pressed through the link.

Reference _numeral 24 denotes a Tatsuchiroll shaft, _and as shown in FIG. As shown, they are provided in an eccentric shape that is orthogonal to each other, and furthermore, a fan-shaped gear 26 is fixedly provided on one end side of the touch roll shaft. Two tatsuchi roll shafts 24 are disposed in parallel, and a sector gear 26 fixed to each shaft meshes with a gear 27, as shown in FIG.
It is connected to a cylinder 28 fixedly attached to the cylinder 28, and is rotated by the expansion and contraction of the shaft of the cylinder, thereby rotating the Tatsuchiroll shaft at an angle of 90 degrees.

(Function) Next, the working mode of the apparatus having the above configuration will be explained. First, the cylinders 28 are operated to move the tatsuchi rolls 4 ₁ and 4 ₂ of _the frame body 5 according to the number of strips _.
Select one of them, move the main body, and press the Tatsuchi roll onto the surface of the coil 3. At this time, the error caused by the difference in the diameter of the coil 3 is due to the force of the spring 17 provided in the spring holder 16, and the cutting wedge blade 1 is slightly rotated around the eccentric pin 15 to bring the tip of the blade 1 onto the surface of the coil 3. Absorbed by contact.
The tip of the cutting wedge 1 is pushed forward by the eccentric pin 15 located at a distance e from the surface of the coil 3, so the tip of the cutting wedge does not lift up due to this moment and the pushing force pushes the tip of the cutting wedge forward. Enter the bottom of 2. In addition, in order to avoid damaging the surface of the carp 3, as shown in FIG. 6, which shows an enlarged view of the tip of the cutting wedge 1, the coil surface contacting part of the cutting wedge is shaped to make surface contact with the coil. Prevents the surface of the coil 3 from being bitten and scratched. The eccentric pin 15 adjusts and brings the surface contact part of this cutting wedge blade with the coil into contact with the coil surface.
Rotate and fix.

By making the above adjustments and driving the drive motor 10, the pinion 11 rolls on the rack 12, the cutting moving frame 8 is guided by the guide rail 7 and moves forward, and the cutting wedge 1 touches the coil surface. The cutting cylinder 23 is operated to press the cutting blade 18 through the links 20, 21, 22 to cut the band 2.

(Effects) As described above, according to the present invention, since the eccentric tatsuchi rolls 4 ₁ and 4 ₂ can be used alternately, it is possible to use the coils 3 of various widths such as wide and narrow widths. Since the wedge blade 1 is always pushed downward by the compressing force of the spring 17 on the coil 14, the surface of the carp 3 is not damaged, and the wedge blade 1 can be touched smoothly even when the diameter of the coil 3 changes. have an effect.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of a conventional device, Fig. 2 is an explanatory diagram of the problems of the conventional device shown in Fig. 1, Fig. 3 is a front view of the inventive device, and Fig. 4 is a diagram similar to that of Fig. 3. Side view, Figure 5 is a sectional view taken along the line CC in Figure 4, Figure 6
The figure is an enlarged view of the tip of the cutting wedge blade, Figure 7 is a detailed view of the tatsuchi roll part in Figure 3, and Figure 8 is A in Figure 3.
9 is a sectional view taken along line B--B in FIG. 7.

Claims (1)

[Claims] 1. A frame body having a plurality of eccentric tatsuchi rolls disposed on the same axis and selectively used by gears is provided so as to be able to face the fastening surface of the packaging band,
A movable frame that reciprocates in the band cutting direction is provided within the frame, a bracket is provided on the movable frame, and a wedge blade receiver that receives pressure from a spring and rotates around an eccentric pin is attached to the bracket;
A multi-strip packaging band cutting device characterized in that a wedge blade is fixed to the wedge blade receiver, and a cutting blade that moves up and down along the wedge blade by a link action is provided.