JPS5866620A - Angle shear unit - Google Patents

Abstract

PURPOSE:To prevent a work from being scratched by angle parts, by cutting off the angles projected toward the upstream side of a flow of strips over a contact part between the tail end and start end of the metal strips. CONSTITUTION:When a No.1 coil 4 comes near to a close, the starting end of a metal strip 20 of a No.2 coil 18 to be fed subsequently is inserted into an angle shear unit 2. Then, a hydraulic cylinder operates and thereby both the upper and lower cutters of the shear unit 2 start operation, so that both angle parts of the starting end of the metal strip 20 are cut off. The cut scraps are all sent to a dump via a belt conveyor. When each coil strip runs out, strips 6 stored in an inlet side accumulator 12 are fed to a furnace 16 for the time being.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a corner cutting shear device, which efficiently cuts at a predetermined angle the corner of the starting end connected to the terminal end of a strip processed in a processing line for connecting strips to pith. This invention relates to a corner cutting shear device that is designed to be dropped.

Generally, in a continuous coil processing line, predetermined gold-copper strips are sequentially connected in series and led to a processing furnace via an inlet accumulator, where they are subjected to a predetermined treatment such as annealing, and then passed through an outlet accumulator. The strip is then wound into a product, but at this time it is necessary to join the end of the strip fed by the coil and the start of the strip of the next coil using a joiner.

However, at the starting end of this combined strip, the angle 7θ5 of both corners or the flow of the strip; 11111
Since it is suitable for The disadvantage was that the scratches resulted in an adverse effect on the products passing through.

Therefore, in order to solve this problem, the starting corner of the strip was cut off with hand scissors each time, and the strip was fed to a joiner and joined to the end of the strip. It's fine if it's thin, but if it gets thicker, it's difficult to cut it with hand scissors, and it's impossible to get a good cut, so there are cases where it can cause unforeseen roller scratches. It was.

Here, the present invention has been made in view of the above circumstances, and it is possible to mechanically remove the corner of the starting end of the IJ tube in a short time, regardless of the plate thickness and width of the coil. By making it easy to cut off at a predetermined angle,
It is an object of the present invention to provide a corner cutting shear device that does not cause damage to the surface of a guide roller.

In order to achieve this purpose, the "misfire" cut off the corner of the starting end of the next strip in order to make the starting end of the next strip continuous with the end of the continuous strip. As a corner cutting shear device, (1), s)
It was conceived in both fil 1 parts of the IJ whelk, and the
(2) two movable frames that can be moved toward or apart from each other in the width direction of the IJ knob;
, a cutter means provided on each of the two movable frames and comprising an upper blade and a lower blade inclined with respect to the traveling direction of the strip so as to cut off the corner of the strip at a predetermined angle; 3) A drive means for moving one of the upper and lower blades of the cutter means to the other side to cut the corner of the strip between the cracks.

Thus, according to the present invention, in order to connect the end of a continuous strip to the start end of the next strip, the corner of the start end can be mechanically bent to a predetermined angle in a short time and easily. By making it possible to remove the linori, it is possible to eliminate damage caused by corners to the surface of the roller that guides the strip, and to completely eliminate the adverse effects on subsequent products caused by scratches on the roller surface. I was able to play it.

Hereinafter, an embodiment of the corner cutting shear device according to the present invention will be described in further detail based on the drawings.

First, 1lllil indicates the arrangement of the corner cutting shear device 2 in the continuous strip processing line. In the figure, the metal strip 6 spilled out from the N1 coil 4 passes through the lower pass line of the corner shearing device 2, passes through the joiner 8, the priddle roll 10, etc. supplied to Then, the metal strip 6 is passed from the inlet accumulator 12 to a predetermined roll 14 in a predetermined furnace 16, where it is continuously subjected to a predetermined treatment such as annealing, and then transferred to a take-up roll. Roll T
4'y is made into a product. Note that the No. 2 coil 18 that is to be connected next is placed near the No. 1 coil 4 that is being fed out, and this No.
, two coils 18 are prepared so that the starting ends of the metal strips 2o can be placed on the upper pass line of the corner cutting shear device 2.

By the way, as shown in FIG. 2, the corner cutting shear device 2
A frame 22 forming a skeleton is supported by a number of supports 26 in a bit 24 provided in an underground portion, so as to form a clog structure. Rails 32 are fixed to the upper surfaces of two parallel beams 28 and 30 at the top of this frame 22, respectively.

Also, the mounting base 3 at both ends of the beam 28 is raised one step higher.
A motor 36 is mounted on the beam 28 from the outside to the inside.
A coupling 38, a gear box 40, and a coupling 42 are connected and installed in series, and a long screw shaft 44 is also connected to the coupling 42.
The screw shaft 44 is horizontally supported at both ends by support stands 46, 46 each provided with a bearing for rotation.

Meanwhile, beam 30 is connected to beam 28 as shown in FIG.
are connected by crossbeams 48 at each end to form a framework, and the gearbox 50 at the end ig'B of the beam 30 and the l'l'l i! The gear box 40 is two couplings 52.5 with several holes on the crossbeam 48.
2 and the two are connected by ifl+ 54. In addition, the gear box 5 (), the nonopano ring 56, and the screw +1η1158 are connected to the beam 30 inwardly from both ends of the screw shaft 58. It turns 11i7. by means of a support stand 59.59 with bearings. Supported horizontally as possible. The screw shafts 44, 58, and 451 motors 36 are used to accelerate and decelerate to a predetermined value so as to obtain a rotation angle 1 synchronously.

And frame 22. Two square cutting shears 60 and 60, which can be close to each other and separated from each other in the longitudinal direction, are symmetrically arranged in J-. This corner cutting shear 60 includes a movable frame 62 and two sets of upper and lower cutter hands 196, each forming a small assembly.
4.66 and oil cylinders 68.70 (driving means) for driving the cutter means 64.66, respectively.

Each of the movable frames 62 is supported by four (2 silk) wheels @ 72 that freely rotate on two parallel rails 32, and each is provided to protrude toward the screw shafts 44 and 58 on both sides. It has an arm 74.74 (Fig. 3). The bellows-shaped units 76 fixed to the tips of the arms 74 are respectively screwed to the screw shafts 44.58 by screws that are screwed to the male screws of the screw shafts 44.58. The entire square cutting shear 60 can be moved forward and backward along the rail 32 as the square cutting shear 60 rotates by .58.

In addition, a pair of upper blades (movable blades) 80 and a lower blade (fixed blade) 82 sandwich the cutter means 64 and pass line 78, and a pair of upper blades (I side) sandwich the lower pass line 84. Fixed blade) 8
6 and a lower blade (movable blade) 88. The two silk blades 80.82i and 86.88 are both inclined at a predetermined angle with respect to the traveling direction of the IJ knob.

A hydraulic cylinder 68, which is connected to the end surface of the movable frame 62σ, advances and retreats the lower blade 80 toward the lower blade 82, and a hydraulic cylinder 70, which is fixed to the lower end surface of the movable frame 62, moves the lower blade 80 toward the lower blade 82.
The lower blade 88 is moved forward and backward toward the upper blade 86, respectively, so that the corners of the strip passing through the pass line 78 and the Gj lower pass line 84 can be cut off at a predetermined angle.

Furthermore, as shown in Fig. 4, the upper blade 80 and the lower blade 82 are protected by the strip guide 90 and the lower blade 82. The blade 86 and the lower blade 81 are each protected by lower bus guides 96 and 98, and are 11 movable blades.On the other hand, both the lower blade 80 and the lower blade 88 are slidable by screwing with a set screw 100. It is removably fixed to 2 and can be adjusted to an appropriate spacing between the cutting edges. Further, as shown in FIG. 5, the upper blades 80.86 have a slight inclination angle in the vertical plane with respect to the lower blades 82.88, respectively. The distribution of force at 1 o'clock is measured.

Furthermore, below the frame 22 in the bit 24, a belt conveyor 106 driven by a motor 104 (FIG. 3) is provided in the longitudinal direction of the frame 22.
The cutting shear 60 serves as a means for transporting cutting waste.

In the square cutting shear mounting section 2 having the above-described configuration, the square cutting shears 60, 60 located on both sides are moved in advance to a free position on the frame 22 by the operation of the motor 36 that drives each of the square cutting shears 60, 60.

At that position, depending on the width of the metal strip 20, both corners of the starting end can be cut off at a desired angle as shown in FIG.

Then, when the first coil 4 approaches the end, the starting end of the IJ tube 20 of the second coil 18 to be supplied next is inserted into the cutter means 64 above the corner cutting shear 60.

Then, the upper hydraulic cylinder 68 is operated to lower the upper blade 80 toward the lower blade 82 to cut off both corners of the starting end of the metal strip 20. At this time, a good cut can be formed regardless of the plate thickness, and the angle θ of the cut j can be set to a desired angle. - As an example, θ-30 degrees as shown in FIG. 6 is suitably adopted. Note that the cut-off scrap 108 is transferred to the movable frame 6 shown in the 71st to 10th frames 1.
10, and as shown in FIG. They are gathered at Ysu.

In this way, after the preparation of the No. 2 coil 18 is completed, the metal strip 6 of the interval 1 coil 4, which is supplied through the lower pass line 84, is The application of the strip 6 is stopped]-8.Then, the metal strip 6 not stored in the inlet accumulator I2 is instead supplied to the temporary processing furnace 16.

Here, the starting end of the metal IJ knob 20 with the corners cut off is 1) delivered to the IS joiner 8 and then connected to the end of the IJ knob 6 by 1g. Ru. Then, following the No. 1 coil 4, the interval 2 coil 18 is supplied to the processing furnace 16.

In addition, once the supply of No. 2 coil 18 is finished, he
<No, 3 coils or 11 above! The starting end of the l'+1 coil 4 is cut into a corner by the lower pass line 84 of the shear 60.
The corner portion 5 is cut by the lower cutter means 66 and connected to the terminal end of the No. 2 coil 18. The third coil is then supplied to the second coil.

By doing this, any corner protruding toward the upper basin 1 side of the flow of the strip is removed from the connection part between the end of the metal strip and the start end of the next metal strip I-IJ tube.
[Part I] Therefore, there is no longer any risk of damaging the front surface of many guide rollers by the corners.

In addition, it can be used not only when the metal strip is thin, but also when it is thick, which was previously difficult to cut with hand scissors.
The corners can be cut off very easily, mechanically, in a short time, and at just the right angle, and the cut edges are good and do not cause new roll scratches.

Furthermore, even if there is a change in the width of the metal strip to be processed, the position of the squaring shear can be moved accordingly, so there is no problem with the squaring operation, and the cut scraps can also be transported by the conveying means. This produced excellent effects such as being able to automatically collect them in a storage location.

In addition, in the above description, the hydraulic cylinder 6 is used as the driving means.
8.70 and an electric motor 36.104, however, the present invention is not limited to this, and air pressure, hydraulic pressure, water pressure, air pressure, etc. can be used as appropriate. be able to. Also, as a means of cutter, the blade 80 and the lower blade 88 are movable blades, and the lower blade 82 and the lower blade 86 are fixed blades, but the reverse may be used, either the sword or the lower blade. All you have to do is shift it so that one side can be moved to the other side.

In addition, it goes without saying that various modifications and improvements can be made to the present invention based on the knowledge of those skilled in the art without departing from the spirit of the present invention.

13-

[Brief explanation of the drawing]

Fig. 1 is a schematic diagram showing the arrangement of an embodiment of the corner cutting shear device according to the present invention, Fig. 2 is a front view thereof, Fig. 3 is a plan view thereof, and Fig. 4 is an enlarged view of the cutter means. Figure 5 is an enlarged square view of the upper and lower blades, Figure 6 is an enlarged plan view showing the cutting state of the starting end of the metal strip, and Figures 7 to 10 are Each in Figure 4 -
Vll, vn+-v river, ■-■, XX sectional views. 2: Corner 9,1 shear f & 6.20: Metal strip 62: Moving frame 64.66: Cutter means 68.70: Hydraulic cylinder (driving means) 80.86: Upper blade 82.88: Lower blade Applicant Sumitomo Light Metal Industries, Ltd. 14-

Claims (2)

[Claims] (1) In order to connect the starting end of the next strip to the end of a continuous strip, a corner cutting shear device is used to cut off the corner of the starting end of the next strip, and the device is installed vertically on both sides of the strip. two movable frames that can be moved toward or away from each other in the width direction of the strip; a cutter means comprising: a cutter means for moving one of the upper blade and the lower blade of the cutter means to the other side;
A corner cutting shear device comprising: a drive means for cutting the corner of the strip between them. (2) Each of the two movable frames has a hollow communicating hole that opens at the strip corner cut-off Ila of the cutter means and has an open bottom, and the bottom through hole of the two movable frames is A scope of mutual consent that is collected by the conveying means after being dropped.
(, li. The square cutting shear device described in Section 1.