JPH0240450B2 - FURAINGUSHAASOCHI - Google Patents

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a flying shear device for cutting the leading and trailing ends of rolled steel bars, rolled wire rods, etc. (hereinafter referred to as wire rods). .

(Prior Art) Generally, a continuously rolled wire material is truncated as a crop because its leading and trailing end portions suffer from poor shape and temperature drop. From now on
The rear end crop cutting process is performed on the wire material running at high speed on the rolling line, and the cut crop must be taken out of the line quickly and reliably, and the following wire material must be removed. In order to run the rolling line normally, the line must be returned quickly and reliably.

There are flying shear devices that carry out such crop cut processing, such as those disclosed in Japanese Patent Publication No. 53-20272, Japanese Patent Publication No. 56-49686, Japanese Patent Publication No. 56-49685, and Japanese Patent Application Laid-open No. 156611/1982. The method disclosed in et al. is publicly known.

What is described in the above-mentioned Japanese Patent Publication No. 53-20272 is
In cutting the leading edge and cutting the trailing edge, the combination of upper and lower blades is changed, and a movable deflector is provided on the separator on the rear surface of the shear to remove and return the shear. The one described in Japanese Patent Publication No. 56-49686 is a device in which an eccentric rotating flap is provided on the dummy cut shear to take out and return the cutter.
The one described in Japanese Patent No. 49685 has a rotary shear provided with a rotating flap. Furthermore, Tokukai Akira
The one described in Japanese Patent No. 59-156611 is provided with a movable flap on the rear surface of the shear, and the tip of the shear is struck to take in the crop material.

The above conventional ones are relatively high speed (linear speed 10m/
sec or more to approximately 30 m/sec) and was devised to shorten the length of the crop material (approximately 600 to 800 mm).

(Problems to be solved by the invention) What is described in the above-mentioned Japanese Patent Publication No. 53-20272 is as follows:
Since the two blades are arranged in parallel, the GD ² of the rotating body (from the motor to the blade holder) becomes large, resulting in a problem that the overload of the motor becomes large. In addition, because the exit chute guide is complex with a movable separator and a movable deflector on the rear surface of the shear, there is a risk of the rolled material colliding with the movable part due to misrolling, resulting in a sticking accident due to damage or deformation. . Furthermore, there were problems such as the fact that three air cylinders were being driven, requiring many maintenance parts.

In the above-mentioned Japanese Patent Publications No. 56-49685 and No. 56-49686, the shear body and the flap are linked by gears, which requires an extra casing and shaft, which is expensive and takes up a lot of space. It was something that took a lot of. In addition, since the rotating flap and shear blade are rotatably arranged in series, the free section where the rolled material is not guided is twice that of a normal shear, making it easy for thin products to buckle. Furthermore, since the rotating flap, shaft, and gears are added, the overall GD ² is also large.
High acceleration performance could not be expected.

What is described in the above-mentioned Japanese Patent Application Laid-Open No. 59-156611 is
The flap, which is linked to the blade axis using a cam and link, reliably hits and captures the cut material at the tip.
Due to the excessively accelerated motion in a short period of time, there are problems such as damage to the bearing and the tip of the flap, reset due to wear of the cam follower, and displacement of the starting point.

Therefore, the present invention aims to minimize the number of moving parts on the rear surface of the shear, reduce the number of auxiliary parts as much as possible, create a robust and simple structure, reduce GD ² , and improve maintainability.
Further, it is an object of the present invention to provide a flying shear device which can reduce the length of the leading and trailing cropped materials to approximately 600 to 800 mm, and can reliably take in and return the leading and trailing materials.

(Means for solving the problems) In order to achieve the above object, the present invention takes the following measures. That is, the feature of the present invention is that a line selector 2 is disposed on the front surface of the shear body 3, and a line separator 4 is disposed on the rear surface thereof, and the line separator 4 is provided with an exit guide for guiding the running wire material 5. 7 and tip/back crop 5
Crop shoots 8 for guiding the wires 5a and 5b are fixedly installed above and below, and the line selector 2 has an entrance guide 10 for guiding the running wire material 5 and regulating its running direction.
The entrance guide 10 is provided so that its position can be changed so that the running wire material 5 is directed toward either the exit guide 7 or the crop chute 8, and the shear body 3 has a pair of upper and lower rotary blade shafts that are parallel to each other. 13, the rotary blade shaft 13 has a rotary blade 14 consisting of a single blade protruding in the radial direction, and the traveling wire material 5 is cut at the position where the tips of the pair of upper and lower rotary blades 14 mesh with each other. position 15, and the rotary blade shaft 13 is moved so that the cutting position 15 moves in the vertical direction.
is provided so that it can be moved up and down.

(effect) The operation of the present invention will be explained below.

(i) When cutting is not performed (when simply rolling the rolled material) The inlet guide 10 of the line selector 2 is oriented toward the outlet guide 7. The rotary blade 14 of the shear body 3 is on standby at a position (HP) away from the cutting position 15. Therefore, the rolled material passes through the inlet guide 10 of the line selector 2,
Pass through the shear body 3 and line separator 4
Flows downstream through the outlet guide 7 of.

(ii) When performing division In the state of (i) above, the rotary blade 14 of the shear body 3 is activated, and the upper and lower rotary blades 14 are engaged to cut the rolled material 5 passing through the shear body 3. The vertical position of the rotary blade shaft 13 is adjusted so that the cutting position 15 in this case is on the rolling line 6. The divided leading and trailing materials 5a and 5b both flow downstream through the exit guide 7.

(iii) In the case of tip crop cutting (see FIGS. 4 to 8), the entrance guide 10 is repositioned to point toward the crop chute 8. The vertical height of the rotary blade shaft 13 is adjusted so that the cutting position 15 is on the rolling line 6. Thus, the leading end of the rolled material that has passed through the inlet guide 10 passes through the shear body 3 and is guided to the crop chute 8. after that,
The rotary blade shaft 13 is activated, and the lower rotary blade 14 kicks up the rolled material onto the rolling line, meshes with the upper rotary blade 14, and cuts off the tip. The cut end crop 5a falls inside the crop chute 8 and is taken out of the line. When the rotary blade 14 is kicked up, the position of the entrance guide 10 is changed so as to point toward the exit guide 7. The subsequent rolled material 5 then flows downstream through the outlet guide 7.

(iv) In the case of rear end cropping (see Figures 9 to 11) The inlet guide 10 is oriented toward the outlet guide 7, and the rolled material 5 is routed from the inlet guide 10 to the shear body 3 to
It passes through the exit guide 7 and travels downstream. When the rear end of the rolled material 5 approaches, the entrance guide 1
0 is repositioned to point towards crop shoot 8. Then, the cutting position 15 of the rotary blade 14
Rotate the rotary blade axis 1 so that it is below the rolling line.
3 is adjusted in the vertical direction. However,
The rotary blade 14 is activated, and the rear end of the rolled material 5 is cut at a cutting position 15 below the rolling line 6. The rolled material before cutting flows downstream through the outlet guide 7 and reaches the rear end crop 5b after cutting.
is guided to the crop chute 8 and taken out of the line.

(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings.

1 to 22 show a first embodiment of the invention.
In FIG. 1, the flying shear device 1 is mainly composed of a line selector 2, a shear body 3, a line separator 4, etc. The line selector 2 is arranged on the front side of the shear body 3, and the line separator 4 is arranged on the rear side. ing.

The line separator 4 has an exit guide 7 for guiding the running wire material 5 on the rolling line 6.
and a crop chute 8 located below the exit guide 7 to guide the front and rear ends of the crop. A chopper 9 is connected to the lower part of the crop chute 8.

The line selector 2 is provided with an entrance guide 10 that guides the running wire material 5 and regulates its running direction. The entrance guide 10 is made of a cylindrical body through which the wire material 5 passes, and its rear end is located on the rolling line 6 and is pivotably supported in the vertical direction. An air cylinder 11 is connected to the lower surface of the entrance guide 10 midway in the longitudinal direction. The air cylinder 11 expands and contracts via the solenoid valve 12, and due to this expansion and contraction, the inlet guide 1
0 can be freely changed between an upper position where the running wire material 5 is guided to the exit guide 7 and a lower position where it is guided to the crop chute 8.

As shown in FIG. 2, the shear body 3 has a pair of upper and lower rotating blade shafts 13, 13 that are parallel to each other. A rotary blade 14 consisting of a single blade protruding in the radial direction is fixed to the tip of the rotary blade shaft 13. The position where the tips of the pair of upper and lower rotary blades 14, 14 engage with each other is defined as the cutting position 15 of the traveling wire material 5. The rotary blade shafts 13, 13 are arranged so that the cutting position 15 is on or below the rolling line 6.
The vertical position of is adjustable.

That is, the vertical adjustment of the rotary blade shafts 13, 13 is performed by a pair of upper and lower eccentric shafts 16, 16. The eccentric shafts 16, 16 are rotatably supported by the frame 17 of the shear body 3 via bearings 18. The eccentric shaft 16 has a distance ε from its rotation axis 19.
An eccentric hole 20 is provided through the eccentric hole 20 at a position deviated by the same amount, and the rotary blade shaft 13 is rotatably supported in the eccentric hole 20 via a bearing 21.

Gears Z ₁ , Z ₁ are fixed to the outer periphery of each eccentric shaft 16 , 16, and both gears Z ₁ , Z ₁ are interlocked and connected via idle gears Z ₂ , Z ₂ . A gear Z ₁ of the eccentric shaft 16 on one side is operatively connected to a motor 23 via transmission gears Z ₃ , Z ₄ , Z ₅ , Z ₆ and a Thomas coupling 22 . This eccentric shaft drive motor 23 has a brake 24 and a pulse generator 27 via a TG 25 and a worm reducer 26 .

Internal gears Z ₇ , Z ₇ are provided at the ends of the rotary blade shafts 13 , 13 .
are fixed, and pinions Z ₈ and Z ₈ mesh with each internal gear Z ₇ and Z ₇ . These pinions Z ₈ , Z ₈ are fixed to pinion shafts 28 , 28 , and each pinion shaft 28 , 28
are connected to independent motors 29, 29, respectively. Both pinion shafts 28, 28 are connected to idler gears _Z9 ,
The motors ₂₉ , 29 are interlocked and connected via Z9, _Z10 , and _Z10 , and both motors 29, 29 are driven synchronously. This motor 2
By the rotation of 9 and 29, the pair of upper and lower rotary blade shafts 1
3 and 13 rotate by the same amount in opposite directions. Each motor 29, 29 has a pulse generator 30, 3.
Further, a pulse generator 31 for detecting the position of the rotary blade 14 is connected to one motor 29.

By rotating the eccentric shaft drive motor 23, the pair of upper and lower eccentric shafts 16, 16 rotate by the same amount in the same direction. This rotation of the eccentric shaft 16 causes the position of the eccentric hole 20 to move in the vertical direction. By changing the position of the eccentric hole 20, the rotary blade shaft 1 supported by the eccentric hole 20
3 moves up and down, and the cutting position 15 of the rotary blade 14 is adjusted up and down.

As shown in FIG. 3, due to the rotation of the eccentric shaft 16, the center of the rotary blade shaft 13 moves along a trajectory indicated by the symbol a in the figure, but the internal gear Z ₇ at the end of the rotary blade shaft 13 moves. , moves in constant mesh with pinion _Z8 .
Therefore, even if the positions of the rotary blade shafts 13, 13 move, the rotary blade shafts 13, 13 and the motors 29, 29 always maintain a connected state.

Note that the rotation speed of the rotary blade shaft 13 is N ₁ , and the eccentric shaft 16 is
The number of rotations of the pinion shaft 28 is N ₂ , the number of rotations of the pinion shaft 28 is N ₃ , the number of teeth of the internal gear Z ₇ is Z ₇ , and the number of teeth of the pinion Z ₈ is Z ₈
Then, the relationship is N ₁ =N ₃ Z ₈ /Z ₇ +N ₂ (1-Z ₈ /Z ₇ ). Therefore, if only the eccentric shaft 16 is rotated while the pinion shaft 28 is stopped, the rotary blade shaft 13 will rotate by N ₁ =N ₂ (1-Z ₈ /Z ₇ ) −.

Therefore, as shown in FIG. 3, from the state where the rotary blade 14 is in the upper standby position (HP),
Rotate 6 by 180° to lower standby position (HP)
When changing the position, since the rotary blade shaft 13 rotates according to the above formula, it is necessary to correct the rotation amount _N1 .

Assuming that Z ₇ =35 and Z ₈ =27, the correction amount is N ₁ =180° (1-27/35) = 41.143°.

As shown in FIG. 4, the rotary blade 14 is a cut-off bit that is detachably attached via a bolt 33 to the tip of a cutter holder 32 that is fixed to the rotary blade shaft 13 so as to protrude radially outward. It is configured. The rotary blade 14 rotates in the direction of arrow b in the figure,
A guide ring 34 is fixed to the back surface of the cutter holder on the opposite side in the rotational direction. The circumferential surface 35 of the guide ring 34 is formed into an arcuate surface centered on the axis of the rotary blade shaft 13. The running wire material 5 is connected between the circumferential surfaces 35 of this pair of upper and lower guide rings 34
to hold. The length of this peripheral surface 35 is the length of the rotary blade 14
The length is such that it does not interfere with the running wire material 5 when it is in the standby position (HP).

In addition, 36 shown in FIG. 1 is a wire material detection device, and this detection device 36
5 on the upstream side by a distance L (m).

Next, the operation of the first embodiment of the present invention having the above configuration will be explained.

First, in the case of tip crop cutting, the inlet guide 10 of the line selector 2 is maintained in a downwardly inclined state so as to point toward the crop chute 8.
The eccentric shaft 16 is adjusted so that the rotary blade shaft 13 is positioned directly above its axis. A cutting position 15 where the rotary blade 14 meshes with the rotary blade shaft 13 coincides with the rolling line 6 . The rotary blade 14 is held at a horizontal standby position (HP).

In the above state, the wire material 5 from the rolling mill runs on the rolling line 6, passes the detector 36, passes through the entrance guide 10, and passes between the rotary blades 14, 14 in the standby position (HP). The user is then guided to a crop shoot 8 (see FIGS. 1 and 4).

After t _T seconds after the detector 36 detects the passage of the tip of the wire material 5, the rotary blade drive motors 29, 29 are activated.
is started. This start timing is determined by setting the crop length as l _C (m), the speed of the wire material 5 as V _f (m/sec), and the time from the start of the motor 29 until the rotary blade 14 reaches the cutting position 15 as t ₁ ( (see FIG. 15), then t _T =L+l _C /V _f −t ₁ (sec) − is set.

As shown in FIG. 5, the rotary blade 14 is driven to rotate in the direction of arrow b by starting the motor 29, and when rotated by an angle θ _T , the lower rotary blade 14 comes into contact with the running wire material 5. and start kicking up. At the start of this kick-up, the tip of the filament 5 is guided by the upper wall 8a of the cropshoot 8.

As shown in FIG. 6, the entrance guide 10 rises substantially at the same time as the above-mentioned kick-up, and the guide 10 maintains a horizontal attitude. In this horizontal position, the entrance guide 10
The axis of the rolling line 6 coincides with the rolling line 6. This rise of the inlet guide 10 causes the solenoid valve 12 to
This is done by turning off and extending the air cylinder 11. After the detector 36 detects the passing of the tip of the wire material 5, the solenoid valve 12 is activated.
The time t _C until turning OFF is given by t _C =L+l _C /V _f −t _S − . Here, t _S is the time from when the solenoid valve 12 is actuated until the cylinder 11 finishes expanding (see FIG. 16).

The best timing to turn off this solenoid valve 12 is just before the lower rotary blade 14 kicks up the wire material 5, and the blade axis angle _θT at that time is set by adjusting the actual machine.

Next, as shown in Fig. 7, the upper and lower rotary blades 1
4 and 14 engage, the tip crop 5a
is cut over a length l _C.

Next, as shown in FIG. 8, the cut tip crop material 5a is guided to a crop chute 8 and taken out of the line. On the other hand, the subsequent wire material 5 is held between the guide rings 34, 34, and the rolling line 6
The vehicle travels above the vehicle and is guided to the exit guide 7.

Thus, the tip crop material 5a flows reliably to the crop chute 8, and the following filament material 5 flows downstream through the outlet guide 7.

After cutting off the end crop, the rotary blade 14 rotates an additional 180 degrees from the standby position (HP) and then stops, as shown in FIG. After this stop, the rotary blade 14
rotates in the opposite direction θ ₃ = 180° and returns to the original standby position (HP)
will be reset to

Next, let's look at the case of the rear cropped cut.
This will be explained using figures.

Flying shear device 1 after tip crop cutting
The status of is as follows. That is, the entrance guide 10 of the line selector 2 is in an upper position in a horizontal position and is directed toward the exit guide 7. The eccentric shaft 16 of the flying shear body 3 is held stationary with its eccentric hole 20 located on the upper side. The rotary blade 14 is stopped and held at a horizontal standby position (HP).

Therefore, the filament material 5 after the end cropping is flowing downstream on the rolling line 6 through the inlet guide 10, the shear body 3, and the outlet guide 7.

To perform a rear end crop cut from the above state, first, as shown in FIG. 9, the entrance guide 10 and the rotary blade 14 are moved to the rear end crop cut position.

The position of the rotary blade 14 is changed by rotating the eccentric shaft 16 by 180 degrees by the eccentric shaft drive motor 23, and positioning the eccentric hole 20 downward. Due to the rotation of this eccentric shaft 16, the rotary blade shaft 13
Since the blade rotates in accordance with the above formula, it is necessary to correct the rotary blade axis 13 accordingly. Thus, the rotary blade 14 is set in the standby position (HP) while maintaining the horizontal posture in the downward position.

Next, the wire material detection device 36 detects the tail end of the wire material 5, and after _tB seconds, the rotary blade shaft drive motors 29, 2
9 is activated. This activation timing is set to t _B =L-l _C /V _f -t ₁ -.

Simultaneously with the activation of the motor, the solenoid valve 12 of the line selector 2 is turned on, the air cylinder 11 is contracted, the inlet guide 10 is rotated downward, and the crop chute 8 is directed. Timing time to turn on this solenoid valve 12
t _C ′ is set by the following equation, similar to the above equation.

t _C ′=L−l _C /V _f −t′s − Note that t′s is the rising time of the solenoid valve 12 (see FIG. 17).

Therefore, as shown in FIG. 10, the rotary blade 14,
By the rotation of 14, the rear end portion of the wire material 5 is cut. The cutting position 15 at this time is below the rolling line 6.

Next, as shown in FIG. 11, the leading wire material 5 that has been completely cut flows downstream through the exit guide 7, and the trailing trailing end crop material 5b is held between the guide rings 34, 34. You will be guided to crop shoot 8. Thus, the rear end crop material 5b is taken out of the crop chute 8 out of line.

As shown in FIG. 13, the rotary blade 14 rotates an additional 180 degrees from the standby position (HP), stops, and then rotates 180 degrees in the opposite direction and is set at the standby position (HP).

When the rear end crop cut is completed, the rotary blade 14 is repositioned in preparation for the next front end crop cut. In this case, the rotary blade shaft 13 is first corrected, and then the eccentric shaft 16 is rotated 180°.

12 and 14 are diagrams continuously explaining the position change of the rotary blade shaft 13 when cutting the tip and rear ends, and FIG. 18 shows the change in the position of the rotary blade shaft 13 and the entrance This is a flowchart including changing the position of the guide 10.

In the flow shown in FIG. 12, the main axis correction and the eccentric axis switching are carried out separately in order, but they may be carried out in a temporally temporal manner. in this case,
The condition is that the cutting edge or the guide ring is controlled so that it does not come closer than (HP) to the wire line. If you wrap them both and move them (HP)
This is preferable because the total time required for the waiting period is shortened. In other words, the time required to change from the leading end cutting mode to the trailing end cutting mode is such that even if a misroll occurs during that time, the material cannot be fed to the chopper line, so the material must be blown out at a location such as the looper at the rear or front of the shear. I don't get it (the amount increases).

The shorter the mode switching is, the faster the chopping process can be performed, and the easier it is to recover after making a mistake.

Note that the position of the entrance guide 10 is changed from 19th to 2nd.
As shown in Figure 2, the guide ring 34 is attached to the wire material 5.
It is only necessary to finish changing the position before finishing the guide. That is, even if the timing of changing the position of the entrance guide 10 deviates from the timing according to the above formulas and formulas, the material 5 is reliably guided by the guide ring 34, so that the material 5 can be reliably taken out and returned. . That is, by changing the cutting position 15, the subsequent material 5 can be reliably guided in the desired direction.

Furthermore, the explanation has been made regarding the case where the position of the entrance guide 10 is changed by reciprocating the air cylinder 11. However, when returning in the tip cut mode (rising from the lowered position), it is desirable that the operational response be constant, and moreover, the tightening force should be reduced. Since it can be adjusted, a spring 37 may also be used as shown in FIG.

What is shown in FIGS. 23-25 is a second embodiment of the present invention. The second embodiment differs from the first embodiment in the shear body 3, but the line selector 2 and line separator 4 are the same as in the first embodiment.

In the shear body 3 in the first embodiment, the eccentric runout amount ε of the rotary blade shaft 13 due to the rotation of the eccentric shaft 16 was absorbed by the internal gear Z ₇ and the pinion Z ₈ , but in the second embodiment, The flexible spindle 38 is configured to absorb the amount of eccentric vibration.

That is, the rotary blade shaft 13 and the rotary blade shaft driving motor 2
9 are interlocked and connected by a flexible spindle 38. In this way, if the motor 29 and the rotary blade shaft 13 are connected by the flexible spindle 38, even if the eccentric shaft 16 is rotated, the rotation will be caused by the rotation of the rotary blade shaft 13.
Since the rotary blade shaft 13 is not rotated, there is no need to correct the standby position (HP) of the rotary blade shaft 13 as in the first embodiment.

Therefore, according to this second embodiment, the leading and trailing ends can be cut in the patterns shown in FIGS. 24 and 25.

Note that the number of idlers _Z2 may be one or two. When using one idler Z ₂ , eccentric shaft switching is
It is possible to cut not only at 180° (two ways: top end or bottom end), but also at any position along the way. Therefore, there is an advantage that the head when cutting the rear end can be easily changed as required.

What is shown in FIGS. 26 and 27 is a third embodiment of the present invention, in which the entire shear frame 17 is moved up and down in order to adjust the height of the cutting position 15. The shear frame 17 is raised and lowered by a lifting screw 39, and the fixed frame 40 and the shear frame 17 are locked by a hydraulic device 41.

Note that the shear frame 17 may be moved up and down by a hydraulic cylinder or the like. Also in this third embodiment, the line selector 2 and line separator 4 are the same as in the first embodiment.

It should be noted that the shear device of the present invention is not only used for cutting the leading and trailing ends including collecting data, but also as a flying shear for dividing.

(Effects of the Invention) According to the present invention, the exit guide and the crop chute are fixedly provided on the rear surface of the shear body,
Since it does not have movable parts like the conventional one, it is possible to improve maintainability and to make these rear equipment have a robust structure.

In addition, by adjusting the cutting position up and down and changing the position of the entrance guide, line extraction and return can be performed reliably and quickly, and all that is needed is to start and stop the rotary blade shaft.
It is possible to reduce GD ² and enable high-speed cutting.

[Brief explanation of drawings]

Fig. 1 is an overall view showing the schematic configuration of the first embodiment of the present invention, Fig. 2 is a schematic view of the shear main body, and Fig. 3 is an explanatory view showing a mechanism for absorbing the amount of eccentric runout of the rotary blade shaft. , FIG. 4 is a sectional view showing the relationship between the line selector, shear body, and line separator, FIGS. 5 to 8 are explanatory views of the crop cut at the tip, and FIGS.
Figure 11 is an explanatory diagram of the rear end crop cut, Figure 12 is an illustration of the operation pattern of the shear body, Figure 13 is an illustration of the reset of the rotary blade, Figure 14 is an illustration of the operation pattern of the motor of the shear body, and Figure 15 is an illustration of the operation pattern of the shear body motor. FIGS. 16 and 17 are startup diagrams of the rotary blade shaft drive motor, FIGS. 16 and 17 are startup diagrams of the air cylinder operation, FIG. 18 is a flowchart of the operation pattern, and FIGS. An explanation diagram of the operation,
FIG. 23 is a schematic configuration diagram of a shear body according to a second embodiment of the present invention, FIGS. 24 and 25 are operation pattern diagrams of the second embodiment, and FIG. 26 is a shear body according to a third embodiment of the present invention. FIG. 27 is a sectional view of the same. DESCRIPTION OF SYMBOLS 1... Flying shear device, 2... Line selector, 3... Shear body, 4... Line separator, 5... Rolled material (wire material), 5a... Tip crop, 5b... Rear end crop, 6 ...Rolling line, 7...Exit guide, 8...Crop shoot, 10...Inlet guide, 13...Rotary blade shaft, 1
4... Rotating blade, 15... Cutting position.

Claims (1)

[Claims] 1. A line selector 2 on the front of the shear body 3.
However, line separators 4 are arranged on the rear surface, and each of the line separators 4 includes an exit guide 7 for guiding the running wire material 5, and leading and trailing end crops 5.
Crop shoots 8 for guiding the wires 5a and 5b are fixedly installed above and below, and the line selector 2 has an entrance guide 10 for guiding the running wire material 5 and regulating its running direction.
The entrance guide 10 is provided so that its position can be changed so that the running wire material 5 is directed toward either the exit guide 7 or the crop chute 8, and the shear body 3 has a pair of upper and lower rotary blade shafts that are parallel to each other. 13, the rotary blade shaft 13 has a rotary blade 14 consisting of a single blade protruding in the radial direction, and the traveling wire material 5 is cut at the position where the tips of the pair of upper and lower rotary blades 14 mesh with each other. position 15, and the rotary blade shaft 13 is moved so that the cutting position 15 moves in the vertical direction.
A flying shear device characterized in that a flying shear device is provided so as to be movable up and down.