JPS5848455B2 - Tension adjustment device for coil rewinding - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tension adjustment device when rewinding an aluminum sheet coil, and in particular, the present invention relates to a tension adjustment device for rewinding an aluminum sheet coil, and in particular, the invention relates to a tension adjusting device for rewinding an aluminum sheet coil.
When winding, the tight coil is re-wound into a loose coil, and when the loose coil is re-wound into a tight coil after processing, the tension during unwinding and winding can be easily adjusted. It is related to the device.

Aluminum products require stricter surface quality than other metal materials.

In addition, aluminum material is formed into a coil by winding an aluminum plate strip during its manufacturing process, but the coil is generally made into a tightly wound coil (hereinafter referred to as a tight coil) with a high winding tension from the viewpoint of handling and securing the amount of winding. It is formed into a coil (called a coil).

Furthermore, like other metal materials, aluminum plates are also subjected to hardening, surface treatment, etc., but these treatments are sometimes performed while the aluminum plate is still formed into a coil.

However, in the case of such a tight coil, there are no gaps between the wound aluminum layers, so the heat and treatment liquid do not act evenly, resulting in uneven surface properties of the aluminum plate.

Therefore, when processing the aluminum strip in a coiled form, in order to form a gap in the center of the aluminum strip to be wound, a thin strip-shaped spacer is placed at both edges of the aluminum strip (the aluminum strip is wound between the edges). At this time, it is necessary to maintain the waveforms and protrusions formed in these spacers, so they are wound with low tension to form a loose coil.

That is, a means is employed to rewind the tight coil into a loose coil prior to processing.

Furthermore, the loose coil that has been processed is re-wound into a tight coil again for processing in the next process and for the reasons described above.

By the way, it would be economical if these rewinding devices could be used to wind the tight coil into a loose coil and then rewind the loose coil into a tight coil using a single rewinding device.

In addition, tight coils generally have a unit tension of 1.0.
Tension of kg/1 or more (aluminum material thickness 0.5 to 2.5 m
771), but 1 inch of Norezuni is 0.4k.
If the coil is not wound at y/1 or less, there is a risk that the spacer may be deformed or scratches may be generated in the direction of the plate due to tight winding of the coil.

Therefore, the above-mentioned rewinding device requires an adjustment device to apply the tension as described above when winding loose coils and tight coils, and these mechanisms are simply constructed and easily installed. It is required that it be switchable.

The present invention has been made with attention to these points, and it is an object of the present invention to provide a tension adjustment device that can easily switch the winding tension of an aluminum plate material in the outward and return directions with a simple structure.

However, the present invention is such that a free roller with a braking device installed stationarily and a feeding device formed by a pair of rollers, at least one of which is actively driven, are opposed to each other in a substantially horizontal position, A lift roller that is actively driven and can be raised and lowered is provided between the free roller and the feeding device, and the slope direction is set so as to form an upward slope in the direction of passage of the aluminum plate below the lift roller. The main feature is that a switchable guide plate is provided, and when winding a loose coil, the elevator roller can be raised and retracted from the upper surface line of other rollers, and can be lowered when forming a tight coil. .

The present invention will be described in detail below based on the drawings, but the drawings show an example of a specific implementation of the present invention, and the present invention is not limited to the use of these illustrated example devices, In view of this purpose, the present invention can be similarly implemented with other configurations or with the addition of other devices and parts.

FIG. 1 is a directional view of a tension adjusting device according to the present invention, FIG. 2 is a partial plan view of FIG. 1, and FIGS.

In these figures, reference numerals 1 and 1' denote side frames, which are fixed to the upper surface of the base 20, respectively.

A guide roller 2, a free roller 4, and a feed roller 6 are each fixedly arranged from one side (left side) on the side frames 1 and 1', each having a bearing mounting portion, and these bearings 2 ', 4' and 6' are fixed to the bearing mounting portions of the frames 1 and 1', respectively.

A pinch roller 3 is arranged directly above the guide roller 2, and both ends of the roller 3 are connected to swing arms I, respectively.
It is freely supported on the tip side of L11'.

The other end of the swinging arm 11.11' is pivotally supported by a part of the frame 1, 1', and the intermediate part thereof is connected to a piston of an operating cylinder 12, 12' provided in the frame 1, 1'. The operating cylinder 12.12 is pivoted at the tip of the
By the operation of ', the vinyl roller 3 is configured to press against the guide roller 2 or to separate and retreat.

Further, a presser roller 7 is disposed directly in front of the feed reroller 6, and the presser roller γ has bearings 7' and 7', respectively, at both ends thereof.
7' (one of which is freely supported by 9 (not shown), and these bearings 7', 7' are provided so as to be movable up and down along slide grooves formed in the frames 1, 1', respectively.

In addition, a cover plate is attached to the top of each slide groove,
Operating cylinders 9, 9' are fixedly installed at the top of the cover plate, and the tips of the operating pistons are mounted on bearings 7/, 7/, respectively.
Connect to.

Therefore, the presser roller 7 is configured to press against the feed roller 6 or to separate and retract by the operation of the operating cylinders 9 and 9'.

The outer circumferential L surface lines of these guide rollers 2, free rollers 4, and feed rollers 6 are formed into substantially horizontal straight lines.

In addition, the support shaft of the free roller 4 is on one side (protruding from the other side),
A drive shaft 15 is connected to a braking device (hereinafter referred to as a brake device) 16, and a support shaft of the feed roller 6 is connected directly or via a coupling.

Further, a drive shaft 14 is connected to the shaft end of the presser roller 7 via a universal joint, and these drive shafts 15, 1
4 are each driven by a drive device (not shown).

Further, there are six drives, each of which can be adjusted via a transmission.

On the other hand, reference numeral 5 indicates a lift roller, and the lift roller 5 is disposed between the free roller 4 and the feed roller 6 with a corresponding gap (20 to 30 mTt) between them. Both ends are loosely supported in bearings 5', 5' (one not shown), respectively.

Further, these bearings 5', 5' are configured to move up and down along slide grooves 18 formed in the frames 1, 1', respectively, and these bearings 5', 5' are provided in the base 20, respectively. It is attached to the tip of the piston of the working cylinders 10, 10' (one not shown).

In addition, one side of the support shaft of the elevator door roller 5 is connected to the drive shaft 1 through a universal joint and a spline joint.
3 are connected to each other, and the drive shaft 13, like the drive shafts 14 and 15, is also transmitted from a drive device equipped with a speed regulating mechanism.

Therefore, the elevator shaft 5 is connected to the operating cylinder 10. 1
It is raised and lowered by the operation of 0' and is actively driven in either the raised or lowered position.

The lowering position is maintained at a position that substantially coincides with the upper surface line of the mouth-ra, and when the upper surface line is raised and retracted, the outer periphery is retracted by a distance such that the outer periphery is maintained at a considerable distance from the upper surface line.

Further, when the elevator roller 5 is in a lowered state, a tight coil is wound up, and when it is raised and retracted, a loose coil is formed.

Therefore, FIG. 1 shows a case where the aluminum plate material 19 drawn out from the loose coil 17 is formed into a tight coil 16 while maintaining a high tension by the tension adjusting means, and the loose coil 17 (with a spacer 18 inserted therein) is formed into a tight coil 16. are sequentially wound up by other suitable winding devices and rotated in the directions of arrows B and A, respectively.

That is, as shown in FIG. 3, the treated aluminum material 19 is gripped by the feed roller 6 and the presser roller 7, and is also held by the tight coil winding shaft and the elevating roller that maintains the lowered position while maintaining a predetermined surface speed. The sheet is wound around the lower side of the roller 5 while being in contact with the free roller 4, and is wound up while maintaining a predetermined tension by frictional contact and grip between the elevator roller 5, the feed roller 6, and the presser roller 7.

The outer diameters of the lifting roller 5 and the feeding roller 6 can be made almost the same, and they can be driven at a constant speed by the same driving means.
In particular, by increasing the contact surface with the elevator roller 5, a predetermined feed amount can be ensured.

In order to adjust these tensions, a tachometer attached to the free roller 4 or the guide roller 2 and a tachometer attached to the feed roller 6 are connected to a control device to detect the difference in speed to obtain a predetermined tension. It is preferable that the rotational speed of the feed roller 6 or the elevator roller 5 be controlled at the same time.

On the other hand, in such a tension adjustment means, when rewinding the coil into a loose coil, the operating cylinder 1 of the elevator door roller 5
Activate 0.10' to raise and retreat.

Then, as shown in FIG. 4, the aluminum plate 19 on the tight coil side is guided by the guide roller 2 and the pinch roller 3, and is fed so as to come into contact with the upper surface of the free roller 4 and pass through the lower part of the elevator roller 5. It is actively rotated in the opposite direction (direction C) to that described above while being gripped by the roller 6 and the presser roller 7.

At this time, the rotation of the elevator door roller 5 is stopped. The rotation of the loose coil winding shaft is driven by friction welding.
A loose coil is formed while maintaining and adjusting the above-mentioned low tension by adjusting the feed amount of the feed roller 6.

At this time, the tight coil support shaft becomes free and the tension is maintained by a suitable brake device.

Note that the brake device 1 provided at one end of the free roller 4
Reference numeral 6 serves as a brake device during winding of a loose coil.

In this tension adjustment method, it is only necessary to raise and lower the single-Otor elevating roller 5 and change the drive device, and the reciprocating paths for loose coil winding and tight coil winding can be adjusted to an appropriate tension by one adjustment device. Can be adjusted.

Naoru loose coil type or G At this time, when the lifting roller 5 is raised and retracted, a space is formed between the free roller 4 and the feed roller 6, and the tip of the aluminum plate material to be introduced falls into this space, and the feed roller 6 may not be reached.

In order to prevent these, it is recommended to provide a guide plate 23 on the lower side of the lifting roller 5 used in the present invention.

Such a guide plate 23 is provided so as to be tiltable.

FIG. 5 is a partial explanatory diagram of the installation, in which brackets 21 are installed inside each bearing 5' of the elevator door roller 5,
A pivot 22 (guiding plate 23) provided on the bracket 21
be installed so that it can be tilted freely.

Then, the bracket 21//pin holes 21a and 2lb are formed, and the mounting portions on both sides of the guide plate 23 (the pin holes 21a, 2lb) are formed.
a, 23b, or a positioning tool 2 such as a connecting pin, etc.
The pin holes 21a and 23a are arranged opposite to each other through the fifth hole.
As shown in FIG. 6, the leading end of the aluminum plate on the feeding side is supported by the guide plate 23 from below while tilting to the left front side.

Reference numeral 24 indicates mounting holes formed on both sides of the guide plate 23.

For example, FIG. 6 shows a state in which the elevator roller 5 is raised and retracted, and as explained in FIG. 5, the guide plate 23 is held in position with the feed roller 6 side tilted upward.

Therefore, the tip of the aluminum plate on the tight coil side introduced is
The material tries to fall into the empty space through the free roller 4, but is turned upward by the guide plate 23, and is automatically guided between the feed roller 6 and the presser roller 7 by feeding the plate material.

In addition, when winding a tight coil, when introducing the tip of the aluminum plate on the loose coil side with the elevator roller 5 in the raised and retracted state, tilt the guide plate 23 in the opposite direction (align the pin holes 2lb and 23b). (and fix it with the positioning tool 25), it can be automatically guided onto the free roller 4.

The bracket 21 is used as a moving means for the guide plate.
At the same time, an operating cylinder or the like may be attached to a pedestal that moves up and down, so that the guide plate can be tilted.

Since the tension adjustment device of the present invention is constructed in this way, (1) the tension adjustment of the reciprocating path can be achieved by a simple means, and it is possible to efficiently convert the aluminum plate into a 1-laze coil and rewind the tight coil into a 5-coil. can.

■ Tension can be easily adjusted and maintained reliably.
Loose coils as well as tight coils with a predetermined tension can be obtained.

■ Toda can be used for a long period of time.

You can enjoy benefits such as:

[Brief explanation of drawings]

FIG. 1 is a side view of a device using the present invention, and FIG.
The partial plan view, FIGS. 3 and 4 are diagrams for explaining the structure and operation, and FIG. 3 shows tight coil winding, and FIG. 4 shows loose coil winding. FIG. 5 is a partially sketched explanatory view showing another example of the configuration, and FIG. 6 is an explanatory side sectional view of the means illustrated in FIG. 1...Side frame, 2...Guide roller, 3...Pinch roller, 4...
Free roller, 5... Elevator roller, 6...
...Feed roller, 7...Press roller, 8...
...Slide groove, 9...Pressure action syringe 10...Elevating action syringe, 11...
・・Swinging arm, 12 ・・・・Operating cylinder, 1
3.14, 15... Drive shaft, 16...
Tight coil, 11... Loose coil, 18.
...Spacer, 19...Aluminum plate material,
20...Base, 21...Bracket,
23... Information board.

Claims (1)

[Claims] 1. A reciprocating tension adjustment device used as a means for rewinding an aluminum plate pulled out from a tight coil into a loose coil, and rewinding the processed loose coil into a tight coil, and equipped with a stationary braking device. free roller and
A feeding device formed by a pair of rollers, at least one of which is actively driven, is placed facing each other in a substantially horizontal position, and an elevator roller that is actively driven and can be raised and lowered is provided between the free roller and the feeding device. , and a guide plate that can change the inclination direction so as to form a climbing surface in the passing direction of the aluminum plate is provided below the entrance roller, and when winding a loose coil, the entrance roller is connected to the upper surface line of the other rollers. A tension adjustment device for rewinding a coil, characterized by being formed in a tight coil shape, or in a way that it is lowered at times.