JPH08310728A - Tape accumulating device - Google Patents

Abstract

PURPOSE: To suppress the undulation, twist, and wrinkle of a tape caused by an increase of the tape accumulated quantity and feed the tape to the primary process at constant tension while the tape tension is not fluctuated or increased by the tape accumulated quantity. CONSTITUTION: A fixed roller group 1 and a moving roller group 2 are arranged face to face so that the moving roller group 2 can be moved apart from or near to the fixed roller group 1, and roller shafts of rollers 8 of the fixed roller group 1 and the moving roller group 2 are fitted to a support plate 23 via angle adjusting means 22. A delivery roll mechanism section 26 is provided on an accumulate main body section 25, the delivery roll mechanism section 26 contains a delivery roll main body 17, a dancer roll 11, and the final roll 8, and the drive system of the delivery roll main body 17 has a reverse preventing cam clutch 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape accumulation rate device. More specifically, the present invention relates to the provision of a tape accumulating apparatus that is optimal for a tape supply system of a pipe forming apparatus that forms a tape and welds seams to reduce the outer diameter.

[0002]

2. Description of the Related Art FIG. 2 shows a conventional example of a tape accumulating apparatus used in a tape supply system of a pipe making apparatus, which includes a fixed roller group 1 in which a plurality of rollers 27 are arranged in a line in a vertical direction, and a roller. Mainly is a moving roller group 2 formed by arranging a plurality of 27 in a vertical line, and the moving roller group 2 is structured to be movable in the perspective direction with respect to the fixed roller group 1 as indicated by an arrow. The mechanism is such that the wheel 6 is wound around the endless wire 7 linked to the support base of the roller group, and the wheel 6 is rotated by the drive motor 5, so that the rotational force of the drive motor 5 causes the wheel 6 to rotate. The wheel 6 is rotated and the endless wire 7 is moved as shown by the arrow. Reference numeral 10 is a corner guide pulley for moving the endless wire 7 in a rectangular shape. Further, reference numeral 4 is a slip clutch 4 built on the drive shaft of the drive motor 5. Furthermore, 24 is a tape clamp.

Although not shown in the drawings, there is provided a guide mechanism for facilitating the movement of the moving roller group 2, for example, a mechanism capable of rolling the support base of the roller group on two guide rails by a roller with a bearing. It's good to be busy.

In the tape accumulating apparatus having the above structure, the supply of the tape 3 is first zigzaged between the fixed roller group 1 and the movable roller group 2 and then, next. It will be supplied to the process. Here, if the moving roller group 2 is operated to move away from the fixed roller group 1, the tension on the tape 3 increases,
On the contrary, if the moving roller group 2 is moved to approach the fixed roller group 1, the tension of the tape 3 is lowered. The slip clutch 4 is used to stabilize the rotational force of the wheel 6 and thus stabilize the tension on the tape 3.

According to the tape accumulation apparatus as described above, the tape 3 (for example, a metal tape made of copper or aluminum) can be continuously supplied, without stopping the pipe forming apparatus in this step. It can operate continuously. The tape clamp 24 is used to sandwich and fix the leading end of the preceding tape 3, where the starting end of the brand new tape is welded (joined).

[0006]

According to the above-mentioned conventional tape accumulation device, while the tape is supplied while being stretched over a large number of rollers in a bent state, the speed of the pipe forming device in recent years and the pipe forming process are increased. Due to the demand for improved pipe forming accuracy, the tape joint time such as rolling and reworking after tape welding is extended, and the accumulation rate is increased by speeding up; the tape waviness and twisting due to the increase of the tape pass line and the number of bends. And wrinkles on the edges, especially on wrinkles on the tape that is easily plastically deformed such as soft copper and soft aluminum; due to the tape tension fluctuation and the increase in the number of times of tape bending due to the increase in the difference in the amount of accumulated tape Due to factors such as increased tape tension, the operating rate decreases (speed decreases) in this process (pipe making) when connecting tapes Multiple pinholes due to welding defects, molding accuracy of the present process (the accuracy of the pipe-making by pipe)
There was a problem such as variation of.

In view of the above-mentioned problems of the prior art, the present invention has as its first object the tape accumulator capable of suppressing waviness, twisting, and wrinkling of the tape which occurs with an increase in the amount of tape accumulation rate. To provide a rate device. The second purpose is to allow the tape to be supplied to this process at a constant tension without being affected by fluctuations in the tape tension or increase in the tape tension due to the difference in increase or decrease of the tape that has been accumulated. To provide a rate device.

[0008]

The first means provided to achieve the first object of the present invention is to provide a fixed roller group formed by arranging a plurality of rollers in a row and a plurality of rollers in a row. The movable roller group is arranged so as to face each other, and the movable roller group is structured to be movable in the perspective direction with respect to the fixed roller group. There is a tape accumulation device in which a shaft is attached to a support plate through angle adjusting means.

In the above apparatus, various kinds of angle adjusting means can be considered, but it is preferable to use a set bolt that projects from the support plate and is screwed to the roller shaft. This apparatus is suitable for a tape supply system of a pipe forming apparatus that forms a tape and welds seams to reduce the outer diameter.

A second means provided to achieve the second object of the present invention comprises a tape accumulating body having a feeding roll mechanism attached thereto, and the feeding roll mechanism has a drive system. It is equipped with a pay-out roll main body, a dancer roll, and a tail roll.
It is on a tape accumulation rate device.

In the above apparatus, a cam clutch for preventing reverse rotation may be provided in the drive system of the feeding roll main body.
It is preferable that the roller shaft of the rearmost roll is attached to the support plate via angle adjusting means. Also, it is advisable to add a margin band to the dancer roll control band. Further, a push roll may be attached to the delivery roll main body. This apparatus is suitable for a tape supply system of a pipe forming apparatus that forms a tape and welds seams to reduce the outer diameter. In particular, when the above-mentioned first means is adopted for the accumulation rate main body portion in the above-mentioned second means, the one most suitable for the tape supply system of the pipe forming apparatus for forming the tape and welding the seam to reduce the outer diameter. Can be

[0012]

According to the first means of the present invention, the following actions can be performed. That is, when the tape is laid around each roller and drawn around, undulations, twists, wrinkles and the like are surely generated on the tape. This is because there is a fixed roller group roller, a movable roller group roller, and the like on the tape path line, and the squareness and parallelism of the rollers at each part cannot be obtained. However, in the first means of the present invention, since the roller shafts of the fixed and movable roller groups are attached so that the angle can be adjusted, the parallelism between the rolls and the right angle can be set to the tape pass line by adjusting the shaft angle of each roll. It can be optimized to the extent that the tape is stretched to one side; the lateral movement force is reduced, and waviness, twisting, and wrinkling are suppressed.

If a set bolt is used as the angle adjusting means, fine adjustment can be easily performed.

According to the second means of the present invention, a large amount of tape tension or fluctuation generated in the main body of the tape accumulation rate is taken out, and a proper amount of weight is attached to the dancer roll to obtain an appropriate tape. Tension can be applied to supply the tape to, for example, the pipe forming apparatus in this step.

When the tape is no longer pulled out by stopping the operation of this process in the reverse rotation preventing cam clutch, it is necessary to keep the tape tension on the tape while the tape accumulation rate body is in operation. Used to prevent being reversed.

When the roller shaft of the last roll is attached to the support plate via the angle adjusting means, the swelling and twisting of the tape which is bent and wound around each roller (roll) in the feeding roll mechanism part of this means It can suppress wrinkles. In addition to the control band of the dancer roll, it is possible to have a margin band because the process will move by inertia due to inertia even if the pay-out roll mechanism section stops immediately in the event of a sudden stop or power failure of the entire device. This is effective in preventing the accident of stretching and cutting the tape in this case. Further, when the push roll is attached, the tape feeding force is increased, and the edge between the tension on the main body of the tape accumulation rate and the tension on the dancer roll can be cut off.

By adopting the first means in the tape accumulation rate main body portion in the above-mentioned second means, it is adopted as a tape supply system of a pipe forming apparatus for forming a tape and welding a seam to reduce the outer diameter. Enables accurate pipe molding and speedup of pipe making equipment.

[0018]

FIG. 1 shows a preferred embodiment of the present invention.
(A) shows a tape accumulation rate device, and (b) shows a roller of the device and its supporting portion. The same structure as FIG. 2; since the functional parts use the same reference numerals as those in FIG. 2, refer also to the above description regarding FIG.

The tape accumulation rate device of this embodiment has a structure in which the first means and the second means of the present invention are combined and embodied, that is, the tape accumulation rate body portion 25.
The feeding roll mechanism unit 26 is additionally provided.

Although the tape accumulating body 25 is almost the same as the accumulating apparatus shown in FIG. 2, the portions improved by the present invention are the respective rollers of the fixed roller group 1 and the moving roller group 2. The roller 8 with a collar is used, and the roller 8 with a collar is attached as shown in FIG.
That is, when the base end base of the roller shaft 9 of the collar roller 8 is attached to the support plate 23, it is attached via a set bolt 22 as an angle adjusting means.

The set bolt 22 projects from the support plate 23 and is screwed into the base end base of the roller shaft 9.
By rotating the set bolt 22, the angle of the roller shaft 9, that is, the degree of inclination is adjusted. If several such set bolts 22 are arranged around the roller shaft 9, the angle can be finely adjusted in all directions.

According to the angle adjusting means using the set bolt 22 as described above, the perpendicularity of each roller 8 of the fixed roller group 1 and the moving roller group 2 and the parallelism between the rollers can be easily obtained, and the length can be extended. Can prevent undulations, twists, and wrinkles on the tape wound around the rollers in a zigzag manner.

On the other hand, the pay-out roll mechanism section 26 has a pay-out roll main body 17 having a drive system such as a drive motor 15.
The dancer roll 11 and the last roll are the main constituent elements. For the rearmost roll, the above-mentioned roller 8 with a collar is used, and this roller 8 is attached to the support plate via an angle adjusting means as shown in FIG.

The drive system of the delivery roll main body 17 is provided with a cam clutch 12 for preventing reverse rotation, and the push roll 16 is attached to the delivery roll main body 17. The push roll 16 is equipped with a pushing mechanism such as an air cylinder. Further, the motion area of the dancer roll 11 has a margin band 19 in addition to the original control band 18. In addition, 21 is an endless chain for moving the dancer roll 11 up and down, and has a rectangular shape with a guide 20 for corners. 13 is a position detector that is rotated in association with the chain 20,
The position signal thus obtained is input to the control unit 14 to control the rotation of the drive motor 15.

Now, the operation of the tape accumulating device of this embodiment having the above-described respective parts will be described. First, the tape 3 is sandwiched and fixed by the tape clamps 24, and the tape is fed from the tape feeding device. After joining the tape, the tape clamp 24 is opened, and the tape 3 is wound around the rollers 8 of the fixed roller group 1 and the moving roller group 2 in a zigzag shape, and then the pay-out roll main body 17 Through the dancer roll 11 to the last roller 8 and then supplied to the pipe forming apparatus for the next process. Swell on tape 3 at this stage;
If twisting or wrinkling occurs, the angle adjustment of the roller shaft 9 may be performed.

Therefore, when the drive motors 5 and 15 of the respective parts are activated, first, in the accumulation rate main body 25, the moving roller group 2 moves in the direction away from the fixed roller group 1, and the tape 3 is stretched accordingly. To be The presence of the slip clutch 4 suppresses the rotational force of the wheel 6 to a certain level or less, so that the tension on the tape 3 is also made constant.
Then, the tape 3 in which the tension increases due to the tape weight of the tape pass line and the repeated bending, is taken up by the feeding roll mechanism unit 26.

In the feeding mechanism section 26, the tape 17 is pulled by the driving rotation of the feeding roll main body 17, and the position detector which is linked with the dancer roll 11 which is moved by the tape 3 drawn to the pipe forming apparatus in the next process by the chain 21 and operates. The rotation of the drive motor 15 is controlled by the position signal of 13 via the control unit 14 to keep the feeding speed of the tape 3 constant.

The push roll 16 increases the feeding force of the tape 3 and also the tape accumulation rate main body 2
In order to cut the edge of the tension between 5 and the dancer roll 11, it is pressed against the delivery roll main body 17, and the pressing force is adjusted and actuated;

The reverse rotation preventing cam clutch 12 is a pay-out roll mechanism when the tape accumulating body 25 is tensioned while the tape accumulating body 25 is in operation, even if the tape making device is stopped and the tape 3 is not pulled out. It is provided to prevent the portion 26 from being reversed.

In the movement area of the dancer roll 11,
The margin band 19 is provided in addition to the control band 18 because when the whole suddenly stops or a power failure occurs, the payout roll mechanism unit 26 immediately stops, but the pipe forming apparatus moves by inertia due to inertia. It is provided to prevent the tape 3 from being stretched or cut.

It is needless to say that the present embodiment described above has been illustrated as a preferred embodiment even if it gets tired, and has no limited intention. In short, various modifications and applications are possible within the scope of claim 1 or 4 of the claims. For example, the motor of the drive motor of the accumulation rate main body; the clutch drive may be a torque motor drive that can generate a rotational torque during rotation or stop. Further, in the pay-out roll mechanism section, instead of the reverse rotation preventing cam clutch, a speed reducer such as a worm gear in which the output shaft side is difficult to reversely rotate may be used. In addition, the feeding roll mechanism can also be pulled out by another method such as a caterpillar.

[0032]

According to the present invention as described above, the following effects can be obtained. According to the first means, the inclination of the roller shaft of each roller such as the fixed roller group and the movable roller group can be optimally adjusted according to the tape path line, and in turn, the tape waviness; twist; Wrinkles can be extremely reduced.

According to the second means, even if there is a tension change caused by an increase in the number of times of tape bending caused by an increase in the accumulation rate, or a tension fluctuation caused by an increase or decrease in the tape weight due to the movement of the moving roller group, the pay-out roll is used. It is possible to supply a constant tension in the mechanism section and then to the process.

When the first means and the second means are combined and used in the tape supply system of the pipe forming apparatus, stable pipe forming operations such as forming; welding and drawing can be performed.
As a result, it can greatly contribute to accurate pipe molding and speedup of the pipe making equipment.

[Brief description of drawings]

FIG. 1A is an overall explanatory view of a tape accumulation rate device according to an embodiment of the present invention, and FIG. 1B is an explanatory view of a roller and its supporting portion of the same device.

FIG. 2 is an overall explanatory view of a tape accumulation rate device as a conventional example.

[Explanation of symbols]

 1 Fixed Roller Group 2 Moving Roller Group 3 Tape 4 Slip Clutch 5 Main Unit Drive Motor 6 Wheel 7 Endless Wire 8 Collar Roller 9 Roller Shaft 10 Guide Pulley 11 Dancer Roller 12 Reverse Rotation Prevention Cam Clutch 13 Position Detector 14 Control Unit 15 Feeding side drive motor 16 Pushing roll 17 Feeding roll main body 18 Control band 19 Marginal band 20 Guide 21 Chain 22 Set bolt (angle adjusting means) 23 Support plate 24 Tape clamp 25 Tape accumulating body part 26 Feeding roll mechanism part

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shiro Kanaga 5-1-1 Hidakacho, Hitachi City, Ibaraki Prefecture Hitachi Cable Co., Ltd. Hidaka Plant (72) Inventor Yoshinobu Sato Hidakacho, Hitachi City, Ibaraki Prefecture 5-1-1, Hitachi Cable Co., Ltd. Hidaka Factory

Claims (10)

[Claims] 1. A fixed roller group formed by arranging a plurality of rollers in a row and a movable roller group formed by arranging a plurality of rollers in a row are arranged to face each other, and the movable roller group is opposed to the fixed roller group. A tape accumulating device, which is structured to be movable in the perspective direction, and in which the roller shafts of the fixed roller group and the movable roller group are attached to a support plate via angle adjusting means. 2. The tape accumulating apparatus according to claim 1, wherein the angle adjusting means is a set bolt that projects from the support plate and is threaded through the roller shaft. 3. A tape accumulating apparatus according to claim 1, wherein the tape accumulating apparatus is used in a tape supply system of a pipe forming apparatus for forming a tape and welding a seam to reduce the outer diameter. 4. A tape accumulation rate main body having a pay-out roll mechanism attached thereto, and this pay-out roll mechanism comprises a pay-out roll main body having a drive system, a dancer roll, and a rearmost roll. , Tape accumulation rate device. 5. The tape accumulation rate main body section has a fixed roller group formed by arranging a plurality of rollers in a row and a moving roller group formed by arranging a plurality of rollers in a row, and the movable roller group is arranged opposite to each other. Is configured so as to be movable in the perspective direction with respect to the fixed roller group, and the roller shafts of the respective rollers of the fixed roller group and the movable roller group are attached to the support plate via angle adjusting means. 4. The tape accumulation rate device described in 4. 6. The tape accumulating apparatus according to claim 4, wherein a drive system of the feeding roll main body is provided with a cam clutch for preventing reverse rotation. 7. The tape accumulation device according to claim 4, wherein the roller shaft of the rearmost roll is attached to the support plate via angle adjusting means. 8. The tape accumulation rate device according to claim 4, wherein a margin band is added to the control band of the dancer roll. 9. The tape accumulating apparatus according to claim 4, wherein a push roll is attached to the delivery roll main body. 10. The tape accumulating apparatus according to claim 4, wherein the tape accumulating apparatus is used in a tape supply system of a pipe forming apparatus for forming a tape and welding seams to reduce the outer diameter.