JPS6327093B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a coil unwinding device, and more specifically, before winding a strip and installing the coil on an unwinding machine drum, the unwinding end of the coil is unwound and rolled. The present invention relates to a device that reduces waiting time for work.

Generally, in strip rolling equipment, when continuously rolling a strip wound into a coil, it is necessary to unwind the tip of the coil from an unwinding machine each time the coil is replaced. will be implemented. The length of time required to carry out this lead-out work is directly related to the waiting time of the rolling operation, so in order to improve productivity, it is necessary to shorten the lead-out work time as much as possible.

The first measure to shorten the conventional meddling time is to
On the cradle roller of the coil car,
A method of carrying out a lead-out operation to unwind the lead end onto a specific guide, and after completing unwinding of a preceding coil in an unwinder, running a coil car to mount the coil on a drum of the unwinder. 2
Various countermeasures have been taken to address this issue, such as preparing two unwinding machines and alternately unwinding the coils.

However, such conventional countermeasure techniques have the drawbacks of poor workability and a complicated structure that is expensive. In addition, when an opener is installed in such an unwinding machine, the opening time depends on the skill level of the worker, but it takes approximately
40 to 60 seconds is the norm, and this has become an issue for improving productivity.

An object of the present invention is to enable the unwinding operation of the trailing coil to proceed simultaneously with the unwinding operation of the preceding coil by the unwinding machine drum, thereby significantly shortening the unwinding time of the coil, and to make it possible to
To provide a coil lead-out device capable of reliably and easily lead-out a coil without being restricted by plate thickness or the like.

In order to achieve the above-mentioned object, the present invention provides a coil unwinding device for unwinding the tip of a coil before mounting it on an unwinding machine drum. A coil car is installed that runs on rails arranged in the direction of
A take-out reel drum for mounting the coil to be taken out is disposed at a relevant position of the coil car that carries the coil into the unwinding machine drum, and a second rail is disposed above the drum in parallel with the rail. , a bogie that can run freely in synchronization with the coil car is provided along this second rail, and a first bogie is provided on this bogie.
A frame is suspended such that it can be raised and lowered, and a snubber roller that contacts the outer peripheral surface of the target coil is provided at the lower end of the first frame, and a second frame is mounted on the trolley on a lower side of the rotation of the coil than the first frame so that it can be raised and lowered. a transverse movement frame movable in a direction parallel to the axis of the target coil is provided on the second frame; an extraction guide and a cylinder for rotating the extraction guide are provided on the lateral movement frame; The present invention is characterized in that an opener that slides into contact with the target coil is provided at the end of the guide on the snubber roller side via a touch roller.

Embodiments of the present invention will be described below with reference to the drawings.

1 to 3 show an embodiment of the present invention, and in FIG. 1, a rolling mill (not shown) is shown.
On the side opposite to the deflector roller 7 of the unwinding drum 5 installed on the input side of the coil car 2, a coil car 2 for transporting the coil 1 is placed on a rail 3 with its wheels 4 so as to be able to roll freely. It is arranged so that A feed reel drum (hereinafter referred to as a drum) 34 is disposed at an appropriate position within the traveling range of the coil car 2, and a coil to be drawn (hereinafter referred to as a coil) 1 can be removably mounted on the drum 34. It's becoming like that. drum 34
A beam rail 10 is constructed by supports 11 and the like in the space above the unwinding machine drum 5.
A bogie 8 is provided on the rail 10 so as to be freely movable via wheels 9, and the bogie 8 is driven to run by a cylinder 12. At a position on the drum 34 side of the bottom surface of the bogie 8, there are shown in FIG. As shown in FIG. 3, the first frame 15 is attached to the guide rod 1.
4, the frame 15 is suspended so as to be able to rise and fall freely, and this frame 15 is driven up and down by a cylinder 17 installed on a truck 8. A snubber roller 13 is rotatably supported on the lower surface of the frame 15 by a bearing 16, and the roller 13 is disposed so as to be able to roll in contact with the outer peripheral surface of the coil 1. The bearing 16 also rotatably supports a presser arm 19, and a coil presser 18 is provided at the free end of this arm 19 to project downward. The arm 19 is rotatably driven by a cylinder 20 installed on the frame 15.
The coil presser 18 is adapted to press against and press the outer peripheral surface of the coil 1 by downward rotation of the arm 19.

As shown in FIGS. 1 and 2, a second frame 21 is suspended at a position on the lower surface of the truck 8 on the side of the unwinding machine drum 5 via a guide rod 22 so as to be able to rise and fall freely. is adapted to be driven up and down by a cylinder 23 installed on the truck 8. A horizontal guide rod 25 is mounted horizontally on the lower surface of the frame 21 in a direction perpendicular to the running direction of the truck 8 (in a direction parallel to the axis of the drum 34), and a lateral movement frame 26 is mounted on the rod 25 with a bearing. The transverse movement frame 26 is slidably suspended via the second frame 27, and is slidably driven by a cylinder 24 installed on the second frame 21. In FIG. 2, each fulcrum bearing 28 is protruded from the upper surface of the lower side of the U-shaped lateral motion frame 26.
has one end of the feed guide 30 and the feed guide 32.
One end of each is rotatably supported. Both guides 30 and 32 are rotatably driven by cylinders 31 and 33 attached to the transverse frame 26, respectively. A wedge-shaped opener 35 and a touch roller 29 are attached to the free end of one of the lead-out guides 30, and the opener 35 scoops up the tip of the coil 1 when it comes into contact with the tip. 29 is rotatable on the outer circumferential surface of the coil 1 to maintain the opener 35 in an appropriate position.

Next, the action will be explained.

First, when the coil 1 is transported by the coil car 2 to the position of the lead reel (not shown), the lead reel drum 34, which was waiting outside the line, moves into the line and is inserted into the center of the coil 1. Ru. After this insertion, the coil car 2 descends and waits. When the coil 1 is inserted into the drum 34, the first frame 15 is lowered by the cylinder 17, and the snubber roller 13 comes into circumscribed contact with the coil 1.
On the other hand, the second frame 21 is lowered by the cylinder 23, and the feed guide 30 and the feed guide 3
2 goes down. Subsequently, the output guide 30 is rotated downward by the cylinder 31, and the touch roller 29 is rotated downward.
Then, the opener 35 is pressed onto the outer periphery of the coil 1 at the proper position.

In a state where the snubber roller 13, the touch roller 29 and the opener 35 are in circumscribed contact with the coil 1,
When the coil 1 is rotated counterclockwise in FIG. 1 by the feed reel drum 34, the opener 35 scoops up the tip of the coil 1 due to the cooperative action of the three members 13, 29, and 35. As the coil 1 rotates, the outlet end 6 is led out onto the outlet guide 30. The output end 6 led out onto the output guide 30 is further led out onto the delivery guide 32 to a required length. The outlet end 6 led out onto the delivery guide 32 is defined at an appropriate height position by moving the guide 32 up and down by the cylinder 33.

After the opening work is completed, the coil presser 18
is lowered by the cylinder 20 via the arm 19 and comes into pressure contact with the outer periphery of the coil 1, and the outlet end 6
Press down on the proximal end. Next, the coil car 2 rises, receives the coil 1, and transfers it to the lead reel drum 3.
4 is carried out to the outside of the line and waits.

Thereafter, when the unwinding of the preceding coil is completed, the traveling of the bogie 8 by the coil car 2 and the traveling cylinder 12 is synchronized, and the coil 1 is unwound while the outlet end 6 is held by the coil presser 18. transport it into a machine (not shown). At this time, the unwinder drum 5 moves outside the line and waits for the coil 1 to be carried in. When the coil 1 is carried into a predetermined position, the unwinder drum 5 is inserted into the center of the coil 1.

When the installation of the coil 1 onto the unwinding machine drum 5 is completed, the transverse movement frame 26 is moved laterally as shown in the imaginary line in FIG. 2 by the operation of the cylinder 24, and the feed guide 30 and the feed guide 32 At the same time, it is pulled out from directly below the outlet end 6 of the
The coil presser 18 rises due to the operation of the cylinder 20, and releases its hold on the outlet end 6. This makes it possible to unwind the coil 1 and start rolling.

According to this embodiment, while the unwinding machine drum is unwinding the preceding coil, it is possible to proceed with the unwinding work for the subsequent coil at the same time, so the waiting time for the unwinding work can be extremely shortened. can. Furthermore, the pick-up work can be automatically performed by remote control, improving work efficiency and safety. Also, due to the rotation of coil 1,
Where on the outer circumference of the coil 1 is the outlet end 6 located?
However, the opener 35 can be moved to the set position and opened. In addition, while sequentially plastically deforming the outlet end 6 using the opener 35, snubber roller 13, and coil presser 18,
Since the lead-out work can be performed, the lead-out end portion 6 can be shaped into an ideal lead-out shape. In addition, the structure is simpler than when two or more unwinding machines are installed in parallel, and the equipment cost is low and it is economical.

In the above embodiments, the case where a cylinder mechanism is used as a driving means for the cart, frame, guide, coil holder, etc. has been explained, but the invention is not limited to this, and a means directly driven by a motor, a pinion rack mechanism, a feed screw mechanism etc. may also be used. We have explained the case where the outlet end of the coil is held by a coil holder to prevent it from shifting while the coil is being moved by the coil car, but in the case where the coil car and the trolley are accurately synchronized. In this case, the coil holder may be omitted.

According to the present invention, it is possible to proceed with the unwinding work for the trailing coil at the same time as the unwinding work for the preceding coil, so that the waiting time for the unwinding work can be significantly shortened, and the work of the unwinding work itself can be improved. In addition, it is possible to realize a coil lead-out device that can reliably and easily lead the coil without being restricted by the material, plate thickness, etc. of the coil.

[Brief explanation of the drawing]

Figure 1 is a front view showing one embodiment of the present invention, Figure 2 is a front view showing one embodiment of the present invention;
The figure is a view in the direction of the - arrow of FIG. 1, and FIG. 3 is a view in the direction of the - arrow of FIG. DESCRIPTION OF SYMBOLS 1... Coil, 2... Coil car, 5... Unwinder drum, 6... Coil outlet end, 8... Cart, 13... Snubber roller, 15... First frame, 18... Coil presser, 21... Second frame, 26... Side moving frame, 29...Tatsuchirolla, 30...output guide,
32... Delivery guide, 34... Output reel drum, 35... Opener.

Claims (1)

[Claims] 1. In a coil unwinding device that performs unwinding work on the tip of the coil before mounting on an unwinding machine drum, a first rail disposed in a direction perpendicular to the axis of the coil, and a first rail on which the coil is moved A coil car on which the coil car is placed and travels, and a pick-up reel drum that is attached to the center of the coil and rotates together with the coil during pick-up work are disposed, and a second rail is installed above the first rail. are arranged parallel to each other, and a bogie is provided that can run freely in synchronization with the coil car along the second rail, and a first frame is suspended on the bogie so as to be able to rise and fall, and the lower end of the first frame is attached to the bogie. A snubber roller is provided that presses the coil by coming into contact with the outer circumferential surface of the coil, and a second snubber roller is provided on the trolley below the first frame when the coil rotates.
A frame is suspended such that it can be raised and lowered, a lateral motion frame movable in a direction parallel to the axis of the coil is provided on the second frame, and an outlet guide and a cylinder for rotating the output guide are provided on the lateral motion frame. What is claimed is: 1. A coil extraction device, further comprising: an opener and a touch roller that slide into contact with the coil at an end of the guide on the snubber roller side.