JPS6243608Y2 - - Google Patents

Description

[Detailed explanation of the idea] Industrial applications This invention relates to a coil material extraction device.

Conventional technology and its problems A coil installed in an uncoiler has its winding end opened by a coil opener placed on the coil material drawer side, and the uncoiler rotates in the unwinding direction to open the coil material. is rewound. The unwound coil material travels over the top of the coil opener and is fed into the line. However, the winding end of the coil material generally faces downward, and there is a problem in that the winding end tends to get caught when moving on the upper surface of the coil opener, making it difficult to move smoothly.

The purpose of this invention is to provide a coil material extraction device that solves the above-mentioned problems.

Means for solving the problem The coil material unwinding device according to this invention has a coil opener and a magnetic roll frame located above the coil opener on the coil material drawing side of the uncoiler and having a magnetic roll attached to the tip, which can both be raised and lowered. The undulation angle of the coil opener is controlled according to the outer diameter of the coil attached to the uncoiler, and the angle between the coil opener and the magnetic roll frame is predetermined according to the undulation angle. The undulation angle of the magnetic roll frame is controlled so that

Embodiments Hereinafter, embodiments of this invention will be described with reference to the drawings. In the following explanation, "front and back" refers to the direction in which the coil material is rewound and fed (the direction from right to left in Figure 1), and the opposite direction is called "back," and "left and right" refers to the direction in which the coil material is rewound and fed (the direction from right to left in Figure 1). That's what I mean.

As shown in FIG. 1, the blanking line consists of a double-supported uncoiler 1, a tip straightener 82, a tip stopper 83, a cleaning device 87, a leveler 80, etc., which are arranged sequentially from rear to front. It is structured as follows. The leveler 80 is equipped with a pinch roller 81. A main pit 5 with a T-shaped cross section extending in the front-rear direction is formed on the floor between the uncoilers 1 and behind them. Main rails 7 extending in the front and back direction are laid on both shoulders of the main pit 5, and the main bogie 2 is placed on the main rails 7. A sub-rail 8 extending in the left-right direction is laid on the upper surface of the main bogie 2, and the sub-truck 3 is placed on the sub-rail 8. Sub-truck 3
is equipped with a coil material holder 9 and a lifting device 4 for raising and lowering the coil material holder 9. Furthermore, the main pit 5
A sub pit 6 shallower than the main pit 5 is formed on the floor on both left and right sides of the rear part, and a rail connected to a sub rail 8 (not shown) is laid at the bottom of the pit 6.

As shown in an enlarged view in FIGS. 2 and 3, the coil material pulling device includes a coil material pressing roll 10 disposed above the coil material Co supported by the uncoiler 1, and a coil material pressing roll 10 disposed above the coil material Co supported by the uncoiler 1. A coil opener 30 is arranged on the drawer side of the coil material Co and opens the winding end of the coil material Co, and a coil opener 30 is arranged above the coil opener 30 and facilitates unwinding by sucking the unwound coil material Co. These are supported by a common device frame 84, 85, 86 which is formed in a gate shape when viewed from the front and rear directions so as to straddle the movement space of the coil material Co to be rewound. ing.

The coil material pressing roll 10 is shown in FIGS. 4 and 5.
As shown in detail in the figure, the horizontal rotating shaft 12 consists of a pair of parts, and the two parts extend in the left and right direction.
are fixed at predetermined intervals in the length direction.
The horizontal rotating shaft 12 is suspended from the elevating body 13 via a bearing. A driven sprocket 14 is fixed to the right end of the horizontal rotating shaft 12. A motor 15 with a speed reducer is supported on the rear surface of the elevating body 13 via a rearward projecting bracket 19, and a chain 15b is wound between a driving sprocket 15a fixed to the output shaft of the motor 15 and a driven sprocket 14. ing. When the motor 15 is driven, the coil material pressing roll 10 is rotationally driven in the direction of unwinding the coil material Co, that is, in the clockwise direction in FIG. 5. A pair of left and right vertical guide rods 18 are provided on the upper surface of the elevating body 13, and these guide rods 18
are fitted into a pair of vertical guide tubes 17 which are provided in a penetrating manner through the beam 86 of the device frame, respectively, so as to be able to swing freely. Between both guide tubes 17 of the same beam 86 is a hydraulic cylinder 16 for driving the coil material presser roll up and down.
is mounted vertically downward, and its piston rod 16a is connected to the elevating body 13 via a connecting rod 16b and a bracket 13a.

A vertical bar-shaped actuator 22 is disposed between both coil material press rolls 10, and a limit switch 24 for detecting the lower limit stop position of the coil material press roll is disposed behind the upper end thereof. The actuator 22 is connected to the elevating body 13 via a downwardly protruding bracket 13b.
It is held so as to be able to move up and down relative to the body, and is constantly biased downward by a compression coil spring 23. A small roller 21 is attached to the lower end of the actuator 22, and a contact piece 22a is attached to the upper end thereof. In a normal state, a portion of the lower end of the small roller 21 protrudes below the outer periphery of the coil material pressing roll 10. The rear surface of the contact piece 22a is formed in a downwardly inclined shape. Limit switch 24 has a forward facing roller 24a that operates in contact with the sloping rear surface of contact piece 22a.

Hydraulic cylinder 1 for lifting and lowering the coil material presser roll
6 is activated to lower the coil material pressing roll 10, and when the coil material pressing roll 10 contacts the coil material Co, the limit switch 24 detects this and outputs a signal to stop the hydraulic cylinder 16.

A vertical rack bar 25 is attached to the left end of the upper surface of the elevating body 13.
is provided. The rack rod 25 slidably passes through the beam 86 and projects upwardly, and a large driven gear 26 is engaged with the projection. A small driven gear 26a is provided coaxially with the large driven gear 26, and a large transmission gear 27 is meshed with this. A small transmission gear 27a is provided coaxially with the large transmission gear 27, and a horizontal rack rod 28 is engaged with this. The horizontal rack rod 28 has an operating shaft 2 of a differential transformer 29 for detecting the outer diameter of the coil material, which is supported leftward on the beam 85.
9a are connected.

When the coil material pressing roll 10 descends together with the elevating body 13, the vertical rack rod 25
descends. Then, large and small driven gears 26, 2
6a and the transmission gears 27, 27a, the horizontal rack rod 28 moves to the left, so that the operating shaft 29a of the differential transformer 29 projects. The outer diameter of the coil material Co is detected by the differential transformer 29 based on the amount of descent of the coil material pressing roll 10 at this time.

As shown in detail in FIGS. 6 and 7, the coil opener 30 has an opener support shaft 33 at its front end.
a rocking body 31 fixed to the rocking body 31 and having a rectangular shape in a plan view; and a sliding body 32 that is slidably supported by the rocking body 31 in the front-rear direction and has a substantially similar shape to the rocking body 31 in a plan view.
and a tip roller 3 provided at the rear end of the sliding body 32.
7, and a downward bucket-shaped tip peeler 38 which is disposed radially outside of the tip roller 37 and is movable up and down about its axis. The opener support shaft 33 is connected to the transverse member 84 of the device frame via support brackets 47 at both ends thereof.
is rotatably supported by both support brackets 4
Between 7 and 7 are four guide rollers 34a and 34b of different sizes.
is installed. The rocking body 31 has a shallow box shape, and guide rails 31b extending in the front-rear direction are provided on the outer surfaces of both left and right walls thereof. A piston rod 46a of an opener hoisting hydraulic cylinder 46 is connected to the lower surface of the bottom wall of the swinging body 31 via a bracket 30a. As shown in FIG. 3, the hydraulic cylinder 46 is supported by a column 85 of the apparatus frame so as to be able to swing vertically. An opener expansion/contraction air cylinder 45 is supported forward in the left-right center portion of the upper surface of the bottom wall of the rocking body 31, and its piston rod 45a passes through the rear end wall 31a of the rocking body 31 and connects to the sliding body facing this. 32 is connected to the rear end wall 32a. The sliding body 32 has a shallow box shape without a bottom wall and a front end wall, and guide grooves 32b extending in the front-rear direction and fitted into the guide rails 31b of the rocking body 31 are provided on the inner surfaces of both left and right sides thereof.
The top wall 35 of the sliding body 32 has its front and rear edges tapered to serve as guide plates for the coil material Co. A pair of end bearings 32c are provided at the rear end of the sliding body 32 at a predetermined interval in the left-right direction, and an intermediate bearing 45c is provided between them, and the peeler shaft 36 is supported by these bearings 32c45c. . Two of the tip rollers 37 are located between the respective bearings 32c and 45c of the peeler shaft 36 and are attached to be relatively rotatable. The tip peeler 38 is attached to the peeler shaft 3 by a pair of arms 38a at positions outside of both end bearings 32c.
It is fixed at 6. Both ends of the peeler shaft 36 project outward from each arm 38a, and a peeler gear 39 is fixed to each of the projecting ends. An intermediate gear 42 is meshed with each peeler gear 39, and each intermediate gear 42 is connected to a rack rod 41.
It is interlocked. Each rack rod 41 is supported slidably in the front-rear direction by guide members 44 provided on the outer surfaces of both left and right walls of the sliding body 32, respectively. A sliding body 3 is attached to the front end of each rack rod 41.
A piston rod 40a of an air cylinder 40 for lifting and lowering the peeler is connected to the outer surface of the peeler 2 via a bracket 43 facing backward.

As shown in detail in FIG. 8, the magnetic roll 50 includes a rotating shaft 50a, cores 50b installed at predetermined intervals in the length direction thereof, and excitation coils 50c wound around each core 50b. core 50
b and a magnetic plate 50d interposed between the excitation coil 50c and the excitation coil 50c and the magnetic plate 50.
and a cover 50e covering the outer circumferential surface of d. The rotating shaft 50 has bearings 5 near both ends thereof.
It is supported on the lower surface of the magnetic roll frame 51 via 0f. The magnetic roll frame 51
Referring to the drawings and FIG. 3, it has a dogleg shape as a whole when viewed from the side, and has a pair of support legs 51a at both left and right ends. A boss 51b is integrally provided at the lower end of each leg 51a.
Each boss 51b has both left and right frame support shafts 52, 52.
Each is fixed at a. Both frame support shafts 52, 52a are rotatably supported by a horizontal member 84 via a bracket 53 so as to be coaxial with the opener support shaft 33 at positions on both sides of the opener support shaft 33. A motor 54 with a reduction gear is attached to the upper surface of the movable frame 51, and a piston rod 55a of a hydraulic cylinder 55 for raising and lowering the frame is connected to the upper surface via a bracket 51d. Although the output shaft of the motor 54 with a speed reducer is not shown in detail, it is connected to a rotating shaft 50a, and the motor 54 rotates the magnetic roll 50 at the same circumferential speed as that of the coil material pressing roll 10 and in the same direction. Driven. The frame raising/lowering hydraulic cylinder 55 is swingably supported by a column 85.

As shown in FIGS. 9 and 10, of the left and right frame support shafts 52, 52a, the left frame support shaft 52 is a hollow shaft, and extends leftward from the bracket 53 supporting the left frame support shaft 52, and supports the support column 85. It penetrates and protrudes to the left. A camshaft 60 is inserted into the left frame support shaft 52. The camshaft 60 is longer than the left frame support shaft 52, and with almost the left half of the camshaft 60 protruding from the left frame support shaft 52, the right end of the camshaft 60 is at the center of the left end of the opener support shaft 33. It is fitted into the shaft and fixed with a bolt 56, and its left end is fitted with a bearing 7
Supported by 3. The bearing 73 is the support column 85
It is received by an arm 72 provided in a leftward protruding shape. An opener upper limit positioning cam 61, an opener lower limit positioning cam 62, and a magnetic roll positioning cam 63 are fixed to the cam shaft 60 in order from left to right. A main drive gear 69 is fixed between them. A horizontal short shaft 78 is arranged above and parallel to the camshaft 60, and is fixed to the lower end of a rectangular parallelepiped mounting base 77 provided perpendicularly to the left side of the support column 85 in a leftward protruding manner. There is. A rotary cylinder 70 is fitted over the horizontal short shaft 78, and an opener storage positioning cam 64, a small driven gear 70b, and a large driven gear 70a are integrally provided in this order from left to right. The small driven gear 70b is meshed with the main driving gear 69. A vertical rack rod 74 is engaged with the large driven gear 70a. The vertical rack rod 74 is slidably fitted into a guide member 75 provided on the mounting base 77.
An operating shaft 76a of an opener angle detection differential transformer 76 supported vertically downward on a mounting base 77 is connected to the upper end of the vertical rack rod 74. Behind the opener upper limit positioning cam 61 and the opener lower limit positioning cam 62, an arm 7 is provided, respectively.
Two limit switches 65 and 66 are mounted directly on the arm 72 facing forward, and in front of the opener storage positioning cam 64, there is another limit switch mounted rearward on the arm 72 via a bracket 72a. A limit switch 68 is arranged. On the other hand, a rotating piece 71 is fixed to the left end of the left frame support shaft 52, and another limit switch 67 is attached to this so as to face the center of the magnetic roll positioning cam 63.

When the hydraulic cylinder 46 for raising and lowering the opener is actuated to raise and lower the coil opener 30, the camshaft 60 rotates via its support shaft 33, and each cam 61 fixed to the camshaft 60 rotates accordingly. 6
2,63 rotates. Further, the rotation of the camshaft 60 is transmitted to the rotating barrel 70 by the main drive gear 69 and the small driven gear 70b, and the cam 64 provided in the rotating barrel 70 rotates. Then, each cam 61, 62, 6 except the magnetic roll positioning cam 63
4 sequentially actuate the limit switches 65, 66, 68 provided for each, and each of these limit switches 65, 66, 68 outputs a stop signal for the opener hoisting hydraulic cylinder 46. As a result, with reference to FIG. 3, the coil opener 30 is placed in the storage position shown by the solid line in the same figure, the upper limit position of the effective operating range shown by the arrow (H) in the same figure, and the upper limit position shown by the arrow (M) in the same figure. Positioned at the lower limit of the effective operating range.

Assume now that the coil opener 30 is positioned at the lower limit position (M) mentioned above. When the coil opener 30 is raised in this state, the camshaft 60 rotates counterclockwise in FIG.
also rotate in the same direction. Then, the main drive gear 69
As a result, both the large and small driven gears 70a and 70b are rotated clockwise, the vertical rack rod 74 is lowered, and as a result, the operating shaft 76a of the differential transformer 76 is projected. The detection signal of the differential transformer 76 and the detection signal of the coil material outer diameter detection differential transformer 29 are input to a comparator, and the opener hoisting hydraulic cylinder 46 is controlled by feed 9 back so that the deviation becomes zero. By doing so, the angle of the coil opener 30 becomes the optimum angle for opening the winding end of the coil material Co between the upper limit position (H) and lower limit position (M) of the above-mentioned effective operating range. Set.

When the angle of the coil opener 30 is set to a predetermined angle according to the outer diameter of the coil material (Co) as described above, the frame undulation hydraulic cylinder 55 is operated to undulate the magnetic roll frame 51. let Then, according to the ups and downs of the magnetic roll frame 51, the frame support shaft 52
rotates, and a limit switch 67 attached to it via a rotating piece 71 comes into contact with the magnetic roll positioning cam 63 and operates, outputting a stop signal for the frame raising/lowering hydraulic cylinder 55. Thereby, the angle between the coil opener 30 and the magnetic roll frame 51 is set to be constant.

Next, the operation of the entire device will be explained.

First, when the coil material Co is attached to the uncoiler 1, the coil material presser roll 10 descends and stops descending when it comes into contact with the coil material Co and presses against it with a predetermined pressure.

Next, the uncoler 1 is reversed (rotated clockwise in FIG. 1) so that the end of the coil material Co is almost directly above it. This is because when the coil material Co is placed on the coil holder 9, the load of the coil material Co is usually applied to the winding end of the coil material Co.
This is because the end of the winding is placed at the bottom to prevent it from unraveling, and the reversal angle is approximately 150 degrees.

Next, the coil opener 30 in the storage position
rises to the lower limit position (M) of the effective operating range, and at the same time the opener expansion/contraction air cylinder 45 operates, the coil opener 30 extends, and the tip roller 37 contacts and presses the coil material Co. Then,
The peeler raising/lowering air cylinder 40 is activated, and the tip of the tip peeler 38, which normally stands up vertically (indicated by a solid line in FIG. 3), is pressed against the coil material Co. When the peeler raising and lowering air cylinder 40 is actuated, the coil opener 30 is set at a predetermined angle according to the outer diameter of the coil material Co, and is expanded again. During this time, the tip of the tip peeler 38 continues to be pressed against the coil material Co at all times. Once the coil opener 30 is set at a predetermined angle, the magnetic roll frame 5
1 and the coil opener 30 are set to be constant, and the magnetic roll 50 is excited.

Next, a stopper 83 provided immediately after the tip straightener 82 is raised, and the uncoiler 1 rotates normally (counterclockwise) to rewind the coil material Co. The end of the rewound coil material Co is peeled off from the coil material Co by the tip peeler 38, and is attracted by the magnetic roll 50 and pulled upward to smoothly move on the upper surface of the coil opener 30. , the winding end passes through the tip straightener 82 and reaches the tip stopper 83.

When the winding end of the coil material comes into contact with the tip stopper 83, the rotation of the uncoiler 1 is stopped and the unwinding is interrupted. Then, the tip straightening machine 82 is activated to straighten the winding end of the coil material, which generally faces downward, upward. When the operation of the tip straightener 82 is completed, the tip stopper 83 is lowered, and the uncoiler 1 rotates normally again to rewind the coil material, and the tip of the coil material Co is guided to the pinch roll 81 in the leveler 80.

If the coil material is thin (for example, about 1.2 mm or less), the coil material itself is weak and the coil material
The end of the Co coil is easily removed by the peeler 38.
The end of the winding separated from Co is the coil opener 3.
The magnetic roll 50 does not necessarily have to be used because it never gets stuck at zero.

Effects of the invention According to this invention, the coil material whose winding ends are separated by the coil opener is attracted upward by the magnetic roll, so that the winding ends are rewound without being caught by the coil opener.

Furthermore, since the undulation angle of the coil opener is controlled according to the outer diameter of the coil, it is possible to reliably separate the winding ends of the coil material regardless of the size of the outer diameter. The undulation angle of the magnetic roll is controlled so that the angle between the coil opener and the magnetic roll becomes a predetermined angle according to the undulation of the coil, regardless of the size of the outer diameter of the coil. It is possible to rewind the coil material reliably.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention, and FIG. 1 is a side sectional view showing the overall configuration of the blanking line, and FIG.
The figure is a front view showing the configuration of a coil outlet device for coil material, FIG. 3 is a side sectional view of FIG. 2, FIG. 4 is a front view including a partial cross section showing details of the coil material pressing roll, and FIG. Figure 4 is a side view, Figure 6 is a coil
FIG. 7 is a side view of FIG. 6, FIG. 8 is a vertical cross-sectional view showing the detailed structure of the magnetic roll, and FIG. 9 is a partial cross-sectional view showing the detailed structure of the opener.
FIG. 10 is a front view including a partial cross section showing an enlarged side portion of the opener, and FIG. 10 is a left side view of FIG. 9. 1... Uncoiler, 30... Coil opener, 31, 32... Opener body (oscillating body, sliding body), 37... Roller, 38... Peeler, 50
...Magnetic roll, 51...Magnetic roll frame,
Co...Coil material.

Claims (1)

[Scope of utility model registration request] On the coil material drawer side of uncoiler 1,
An opener 30 and a magnetic roll frame 51 located above the opener and having a magnetic roll 50 attached to its tip are both arranged in a freely undulating manner, and the uncoiler 1
Depending on the outer diameter of the coil Co installed on the
The undulation angle of the opener 30 is controlled, and the undulation angle of the magnetic roll frame 51 is controlled so that the angle formed between the coil opener 30 and the magnetic roll frame 51 becomes a predetermined angle according to the undulation angle. This is a coil material extraction device.