JPH0328967Y2 - - Google Patents

Description

[Detailed description of the invention] "Industrial application field" This invention is used in a coil line that supplies coil material to a press to guide the tip of the coil mounted on the uncoiler so that it can be easily inserted between the pinch rolls of the leveler feeder. This invention relates to a coil tip guiding device in a leveler feeder.

``Conventional technology'' Conventionally, the tip of the coil mounted on an uncoiler was bent with an opener, and an operator adjusted the degree of bending before sending it to the leveler feeder.

``Problems to be solved by the invention'' The conventional method described above requires a skilled worker, and if the worker is inexperienced, it takes a lot of time to re-bend and guide the bend. An object of the present invention is to eliminate this drawback and provide a coil tip guiding device that does not require a skilled worker and can reliably guide the coil tip between the pinch rolls if the procedure is followed.

"Means and effects for solving the problem" The structure of the present invention is to provide a lower pinch roll supported on a bracket pivotally connected to the machine body near the coil feeding part, and an air cylinder between the bracket and the machine body. The lower pinch roll is attached between two arms that are pivoted to the fuselage above the lower pinch roll and swing between the upper part of the lower pinch roll coil using a hydraulic cylinder. An upper pinch roll is provided, which is pivoted to the body above the coil payout part at the center of the width of the coil, and is oscillated by a hydraulic cylinder between the top of the upper pinch roll, which is in contact with the lower pinch roll, and the coil payout part. A coil presser was provided, which had a roller at its tip that pressed the outer periphery of the coil with a rotation that was better than the coil feeding part, and a coil presser whose base was pivoted to the body and pressed the roller against the coil with an air cylinder. Swing the upper pinch roll upwards on the coil, hold down the outer circumference of the coil with the coil presser, press the opener against the tip of the coil, rotate the coil, bend the tip of the coil and let it out to the required length, then press the opener and upper pinch roll. When the roll is swung above the lower pinch roll,
The coil tip is unique in that it is naturally guided and pinched between the upper and lower pinch rolls.

Embodiment FIG. 1 shows the structure of a coil tip guiding device 1 according to the present invention. The coil 2 is mounted on an uncoil (described later), and a lower pinch roll 3 is provided near the unwinding part on the left side. The lower pinch roll 3 is rotatably mounted on a bracket 5 whose upper portion is pivotally connected to the body 4, and is connected by a chain 7 to the output shaft of a motor 6 fixedly mounted on the bracket 5.
It is rotated counterclockwise in the figure. An air cylinder 8 is provided between the lower part of the bracket 5 and the machine body 4, and applies an upward biasing force to the lower pinch roll 3 via the bracket 5.

The upper pinch roll 9, which faces the lower pinch roll 3 from above, is rotatably supported between the tips of two arms 10 whose upper ends are pivotally connected to the body 4 above the lower pinch roll 3. The piston rods of two hydraulic cylinders 11 pivotally mounted on the body 4 above the coil 2 are connected to the arms 10, and the upper pinch roll 9 is oscillated between the position where it contacts the lower pinch roll 3 and the upper side of the coil 2. I try to keep it moving. The base of the opener 12 is pivotally attached to the body 4 above the feeding portion of the coil 2 at a position corresponding to the center of the width of the coil 2, and a hydraulic cylinder (not shown) moves the roller 13 at the tip of the opener 12 to the upper pinch roll 9. above and coil 2
It is designed to swing between the feeding part and the feeding part. The opener 12 is L-shaped to avoid interference with the upper pinch roll 9 when swinging.

The coil 2 rotates clockwise in the drawing, but the upper part of the rotation of the feeding section is held down by a roller 15 provided at the tip of a coil presser 14. The base of the coil presser 14 is pivotally attached to the body 4 on the left side of the coil 2 feeding part, and the roller 15 is urged toward the coil 2 by an air cylinder 16 provided between the middle part of the coil presser 14 and the body 4. I'm starting to do that.

When a new coil 2 is mounted on the uncoiler, the air cylinder 16 first presses the roller 15 of the coil presser 14 against the outer periphery of the coil 2. The band of the coil 2 is cut, and the arm 10 of the upper pinch roll 9 and the opener 12 are swung by the hydraulic cylinder 11 and a hydraulic cylinder (not shown), and the roller 13 of the opener 12 is rotated.
is brought into contact with the outer periphery of the coil 2. The uncoiler is rotated, and the tip of the coil 2 is bent up as shown in A with the opener 12, and fed out to a required length. When the uncoiler is stopped and the arm 10 and opener 12 are swung to the position shown by the solid line, the tip A of the coil 2 is guided between the upper and lower pinch rolls 3 and 9 as shown by B, and the air cylinder 8 is activated. The tip B of the coil 2 is held between upper and lower pinch rolls 3 and 9. When the motor 6 is started, the coil 2 is drawn out between guides to be described later. When the coil 2 is unwound by the upper and lower pinch rolls 3 and 9, it is guided by side guides 17 on both sides of its width.

In FIG. 2, an uncoiler 18 on which the coil 2 is mounted is provided on the right side of the coil tip guiding device 1,
An outer guide 19 and an inner guide 20 are provided at the upper part of the body 4 to guide the coil 2 being paid out from between the lower pinch roll 3 and the upper pinch roll 9. The coil 2 that has exited the inner and outer guides 19 and 20 is moved to a guide roller 22 provided on the leveler feeder 21 body.
and the guide roller 24 of the swinging arm 23, the work roll 25 corrects the bend, and the feed roll 26 supplies the workpiece to a press (not shown).

``Effects of the invention'' As is clear from the above explanation, according to the invention, the arm having the upper pinch roll and the opener can be freely swung, so the tip of the coil can be simply bent a certain length and fed out. It can be automatically guided between the upper and lower pinch rolls and has great practical effects and advantages, such as easier operation.

[Brief explanation of the drawing]

FIG. 1 is a partially sectional front view of the present device, and FIG. 2 is a front view of the leveler feeder according to the embodiment. 1 is a coil tip guidance device, 2 is a coil, 3 is a lower pinch roll, 4 is a fuselage, 5 is a bracket, 6 is a motor, 7 is a chain, 8 is an air cylinder, 9 is an upper pinch roll, 10 is an arm, 11 is Hydraulic cylinder, 12 opener, 13 roller, 14 coil holder, 15 roller, 16 air cylinder, 1
7 is a side guide, 18 is an uncoiler, 19 is an outside guide, 20 is an inside guide, 21 is a leveler feeder, 22 is a guide roller, 23 is a swing arm, 24
25 is a guide roller, 25 is a work roll, and 26 is a feed roll.

Claims (1)

[Scope of utility model registration request] In a device for guiding the tip of a coil 2 mounted on an uncoiler, a lower pinch roll 3 is rotatably provided on a body part 4 near the coil feeding part, and its base is pivotally mounted on the body above the lower pinch roll 3. , has an upper pinch roll 9 corresponding to the lower pinch roll 3 at its tip, and is driven by a hydraulic cylinder 11 to swing the upper pinch roll 9 to a position where it contacts the lower pinch roll 3 and a position above the coil. The arm 10 is pivoted at its base to the body above the coil feeding section, and is driven by a hydraulic cylinder to move the roller 13 at its tip above the upper pinch roll 9 that is in contact with the lower pinch roll 3 and the coil 2. A coil tip guiding device in a leveler feeder, comprising an opener 12 that swings between the opener 12 and a position where the coil 2 is brought into contact with the outer periphery of the feeding part, and a roller 15 that presses the outer periphery of the coil 2 just before the coil 2 is fed out. .