JPH0815618B2 - Strip transport device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention rewinds a coiled strip and performs surface treatment on the strip, or forms the rewound strip to form an electric resistance welded tube. In this case, the present invention relates to a strip transporting device capable of easily and quickly inserting a coil provided with an opening for rewinding, threading and the like into a processing main line for performing these processing and forming.

[Prior Art] Conventionally, a preceding coil is provided at a front portion of a processing main line for rewinding a coiled strip and processing the strip, that is, a portion for supporting the coil and rewinding the strip to be caught in a pinch roll. After the processing work is completed, insert the coil to be processed next, support it, cut the band, open the mouth, bend the nose of the strip, set the width, thread, and if necessary, perform pre-treatment up to top shearing, The tip of the strip is pinched into the pinch roll to deliver the strip. While this preparatory work is being performed, the processing main line is on standby, and there is a demand for shortening the preparatory work time in order to improve the productivity of the main line.

To meet such a demand, for example, JP-A-60-238
A device as disclosed in Japanese Patent No. 034 has been proposed. In this apparatus, a coil suspended by an appropriate means is mounted on a cradle roll, and various operations such as band cutting, opening of the mouth, and strip nose bending of the strip are performed on the coil mounted on the cradle roll. An insertion trolley that supports the coil all the time and inserts the coil into the processing main line after processing, and a pinch roll that is supported on one side that holds the tip of the coiled strip on the insertion trolley when threading the tip. It is equipped with a shift trolley in which is installed.
In addition to the pinch roll, on the shift carriage, a snubber roll that fixes the coil by pressing the coil on the cradle roll from above, a motor for rotating the snubber roll, a peeler for opening the strip end opening of the coil, and a lifter for lifting the peeler. Cylinder, threading device, side guide, side guide width setting cylinder, etc. are installed.

In the above apparatus, the insertion carriage and the shift carriage stand by at the side of the processing main line during operation of the processing main line for processing strips. After the coil is mounted on the cradle roll of the insertion trolley by appropriate means, pretreatment work such as band cutting, mouth opening, strip tip nose bending, width setting, and threading is performed. The straightened strip is unwound from the coil and positioned between the pinch rolls of the shift carriage. Next, the tip of the strip is pinched by upper and lower pinch rolls and sent to a predetermined position.

The coiled strip and the strip with the tip part partially rewound are put in the above state and stand by, and when the preceding coil processing is completed in the processing main line, the insertion carriage and the shift carriage are made to run in synchronization and the processing main line is processed. The coil is supported by the rewinder reel of the processing main line by lowering the cradle roll by the cylinder, and the tip of the strip is caught between the leveler rolls of the processing main line.

Since the pinch roll is rotatably supported only on one side, the insertion carriage and the shift carriage are moved to the old position with the coils and strips left on the processing main line by retracting the insertion carriage and the shift carriage from the processing main line. Return to.

[Problems to be Solved by the Invention] However, in the above-described conventional device, the shift carriage having the pinch roll installed includes a snubber roll, a snubber roll rotating motor, a mouth opening peeler, a peeler lifting cylinder, and threading. Device, side guide,
Since the side guide width setting cylinder and the like are also installed, the shift carriage becomes large, and extra power is required to move the shift carriage, which is not preferable from the viewpoint of energy saving. .

The present invention has been made in view of the above circumstances, and has an object to reduce the size of an apparatus for holding and shifting the tip of a strip and saving energy.

[Means for Solving the Problems] The present invention includes a cradle roll that rotatably supports a coil-shaped strip, and a coil-shaped strip supported by the cradle roll is processed from the outside of the processing main line. An insertion trolley for transporting the inside of the coil and fitting and supporting the coiled strip on the rewinding machine reel installed in the processing main line and the tip of the strip rewound by the rotation of the cradle roll. Then, the gripper trolley travels in synchronization with the insertion carriage to insert the strip into the processing main line from the outside of the processing main line, and the strip installed in the processing main line is inserted between the pinch roll axial direction and between the upper and lower pinch rolls. And a pinch roll device that can be used.

[Operation] An insertion carriage equipped with a coil strip and a gripper carriage sandwiching the tip end side of the strip unwound from the coil move in synchronization to insert the coil and the strip tip into the processing main line, and the coil is wound. The strip is inserted into the return machine reel, and the tip of the strip is inserted between the upper and lower pinch rolls of the pinch roll device.

Since it is not necessary to mount an extra device on the insertion carriage and the gripper carriage, it is possible to reduce the size of the carriage and save energy.

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

FIGS. 1 and 2 show an embodiment of the present invention, in which 1 is a rewinder reel installed in the main processing line of the strip, 2 is a width changeable by a screw 3, and a fluid pressure cylinder 4 is in the direction of the main processing line. The side guide main body 5 which moves back and forth so as to be able to move toward and away from the rewinder reel 1 is a side guide roller 5 arranged in the side guide main body 2 so as to be radial with respect to the rotation center of the rewinder reel 1. , 6 is an insertion carriage for placing a coiled strip 7 (hereinafter simply referred to as a coil 7) on a cradle roll 8 and inserting the strip 7 from the outside of the main processing line into the main processing line. A hydraulic pressure cylinder for moving the coil 7 up and down via the cradle roll 8, and a fluid pressure cylinder 13 installed outside the main processing line. Operation to a Sunabaroru to press the outer circumferential portion of the coil 7.

Further, 14 and 15 are installed on the downstream side of the rewinding machine reel 1 and outside the main processing line, and are peelers for opening the coil opening. 16, 17 are fluid pressure cylinders for operating the peelers 14, 15. Is equipped with grippers 19 and 20 for holding the strip tip rewound from the coil 7, and runs in synchronization with the insertion carriage 6 in a direction perpendicular to the processing main line to feed the strip tip to the processing main line. 22 is a fluid pressure cylinder that raises and lowers the grippers 19 and 20, 23 is a rail that allows the gripper carriage 18 to travel via wheels 24, and 25 is an upper pinch roll 26 whose both shaft ends are rotatably supported. A pinch roll device having a lower pinch roll 27 so that the upper pinch roll 26 can be moved up and down by a fluid pressure cylinder 28.The pinch roll device is installed on the main processing line, and 29 is installed on the downstream side of the pinch roll device 25. And a lower leveling roll 31, and the upper leveling roll 30 can be moved up and down by a fluid pressure cylinder 32.

The gripper carriage 18 is opened on the side facing the processing main line as shown in FIG. 2 so as not to interfere with the backward movement of the gripper carriage 18 from the processing main line, and the pinch roll device 25
The side frame 33 has an opening on the side where the gripper carriage 18 is installed so that it does not interfere with the insertion of the strip, and the peeler
The frame 34 supporting 14, 15 is also open on the side facing the main processing line so as not to interfere with the insertion of the coil.

When the preceding coil is unwound from the rewinder reel 1 on the processing main line, the side guide body 2 is in the position shown by the solid line in FIG. 1, and the strip is held by the upper and lower pinch rolls 26 and 27 of the pinch roll device 25. Then, the plate shape is corrected by the leveler 29 and the sheet is fed to the downstream side. In this case, the insertion carriage 6
The gripper cart 18 is waiting outside the main processing line.

Thus, while the insertion carriage 6 and the gripper carriage 18 are on standby outside the processing main line, the coil 7 which is divided into a plurality of pieces by the slitter and wound and formed in the previous step is separated from other coils. It is hung and conveyed by an appropriate means such as a crane, and placed on the cradle roll 8 of the insertion cart 6.

Next, the band holding the coil 7 is cut by a band cutting machine (not shown) and the fluid pressure cylinder 13
The snubber roll 12 is operated to press the outer circumference of the coil 7, and the fluid pressure cylinders 16 and 17 position the peelers 14 and 15 at predetermined positions according to the opening positions of the coil 7, and the fluid pressure cylinders 21 and 22 are used. , Gripper cart 18
Open the space between the grippers 19 and 20 and cradle roll 8
The coil 7 is rotated by rotating. That is, when the mouth opening position of the coil 7 is below, the peelers 14 and 15
Is stopped at the position shown in FIG. 1, and the coil 7 rotates counterclockwise in FIG.

When the coil 7 rotates counterclockwise in FIG. 1, the coil 7 is opened by the peeler 14, and the opened strip front end is sent to the downstream side through the peelers 14 and 15, and the strip front end is grippered. Trolley 18 gripper 1
Supplied between 9 and 20. Then, when the tip of the strip projects a predetermined length downstream from between the grippers 19 and 20, the cradle roll 8 is stopped and the fluid pressure cylinders 21 and 2 are
2 is operated and the tip of the strip is held by the grippers 19 and 20. After opening the strip mouth, the nose of the strip tip is bent and threading is also performed. If the strip tip is pinched by the grippers 19 and 20, snubber roll 12
Is released.

When all the preceding coils are rewound from the rewinder reel 1, the coil 7 prepared in advance on the side of the processing main line
Is inserted into the main processing line. At this time, first, the side guide body 2 is retracted to the position of the chain double-dashed line in FIG. 1 by the fluid pressure cylinder 4, and the insertion carriage 6 and the gripper carriage 18
Are tuned to the main processing line side along the rails 9 and 23 to insert the coil 7 and the tip of the strip into the main processing line. As a result, the coil 7 is fitted into the rewinder reel 1 and the strip tip is inserted between the upper and lower pinch rolls 26, 27 of the pinch roll device 25 having a gap. When the insertion carriage 6 and the gripper carriage 18 travel to the processing main line side, the snubber rolls 12, peelers 14 and 15, band cutting machines, threading devices, etc. remain on the side of the processing main line. Further, since the processing main line side of the frame 34 and the gripper carriage 18 standby side of the side frame 33 of the pinch roll device 25 side are open, there is no problem in inserting the coil 7 and the strip tip into the processing main line.

When the coil 7 and the tip of the strip are inserted into the main processing line, the fluid pressure cylinder 11 lowers the cradle roll 8 of the insertion carriage 6 to fit and support the coil 7 on the rewinder reel 1, and the fluid pressure cylinder 28 moves the coil 7 upward. The pinch roll 26 is lowered and the upper and lower pinch rolls 26 and 27 hold the strip tip, and the fluid pressure cylinders 21 and 22 open the grippers 19 and 20 to grip the strip.
Release from 20.

When the coil 7 is supported by the rewinder reel 1 and the strip tip is held by the upper and lower pinch rolls 26 and 27, the insertion carriage 6 and the gripper carriage 18 move to the outside of the main processing line and return to the original standby position, and again the above-mentioned. The next coil is prepared by the procedure. Since the processing main line side of the gripper carriage 18 is open, there is no hindrance to the movement of the gripper carriage 18 outside the processing main line. In the main processing line, the fluid pressure cylinder 4 advances the side guide body 2 to the position shown by the solid line in FIG. 1, the rewinder reel 1, the pinch roll device 25, and the leveler 29 are driven, and the coil 7 is rotated and stripped. Is rewound. The coil 7 is guided by the side guide roller 5 during rotation. When the strip tip is fed between the upper and lower leveling rolls 30 and 31 of the leveler 29, the fluid pressure cylinder 32 lowers the upper leveling roll 30 and sandwiches it between the upper and lower leveling rolls 30 and 31. Then, the shape is corrected and sent to the next process, and the required processing is performed.

FIG. 3 shows another example of the pinch roll device used in the present invention, in which the side frame 33 on the waiting side of the gripper carriage 18 can be removed at the portion a. With such a configuration, the upper pinch roll 26 can be easily replaced.

The present invention is not limited to the above-described embodiments, and the insertion carriage and the gripper device can be connected by a connecting member to be implemented as an integrated carriage, and other various modifications are possible without departing from the scope of the invention. Of course, changes can be made.

[Effect of the Invention] According to the strip transporting device of the present invention, the coil carrier is provided in the insertion carriage on which the slip coil is placed and inserted into the processing main line and the gripper carriage in which the strip tip is held and inserted into the processing main line. No extra equipment such as peeler for opening, snubber roll, nose bending device, etc. is installed, so the trolley can be downsized and the running power can be small, so energy can be saved. Completed all preparatory work for strip rewinding, such as opening the tip mouth and threading, and waiting in that state to process the strip coil and strip that were prepared immediately after the rewinding of the preceding coil in the main line Since it can be inserted into the main line, the down time of the line is shortened compared with the case where preparatory work is performed in the processing main line. Various excellent effects such as improvement in productivity of the main processing line can be achieved.

[Brief description of drawings]

FIG. 1 is an explanatory view of an embodiment of the strip transporting device of the present invention, FIG. 2 is a detailed view of a part of a gripper carriage and a pinch roll device used in the strip transporting device of the present invention, and FIG. 3 is FIG. FIG. 6 is a detailed view of another example of the gripper carriage and the portion of the pinch roll device used in the transport device of FIG. In the figure, 1 is a rewinding machine reel, 5 is a side guide roller, and 6
Is an insertion carriage, 7 is a strip coil, 12 is a snubber roll, 14 and 15 are pillars, 18 is a gripper carriage, and 25 is a pinch roll.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Junhisa Nakao 3-2-16 Toyosu, Koto-ku, Tokyo Ishikawajima Harima Heavy Industries Co., Ltd. Toyosu General Office (56) Bibliography 57-92416

Claims (1)

[Claims] 1. A cradle roll for rotatably supporting a coil-shaped strip, wherein the coil-shaped strip supported by the cradle roll is conveyed from outside the main processing line into the main processing line and the coil-shaped strip is provided. The insertion carriage for fitting and supporting the rewinding machine reel installed in the processing main line and the strip leading end rewound by the rotation of the cradle roll are sandwiched and run in synchronization with the insertion carriage. A gripper carriage for inserting the strip into the processing main line from outside the processing main line, and a pinch roll device installed in the processing main line and capable of inserting the strip from the pinch roll axial direction between the upper and lower pinch rolls are provided. A strip transport device characterized by the above.