JPH0524669Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention places and holds a winding core in the valley between two winding rollers arranged in parallel, and rotates the winding core with the winding roller. However, it is related to a two-roll valley winding type winding device that winds a thin film strip (hereinafter referred to as a sheet) on its outer periphery. The present invention relates to the two-roll valley-winding type winding device that reliably performs the steps of winding the sheet-like material around the core and winding the sheet at the beginning and end.

(Prior Art) As a two-roll valley winding type winding device for winding up the surface of a sheet-like material, a structure shown in FIG. 6 has conventionally been widely used.

That is, the winding device has two winding rollers 1 and 2 which are supported adjacently and parallel to each other, and a winding roller 1 and 2 on the full roll discharge side of the winding rollers 1 and 2. One auxiliary roller 3 is supported in parallel at the same height, and the winding rollers 1 and 2 are rotated in the same direction (arrow A direction) to be placed and held in the valley between both rollers 1 and 2. The rolled core T is rotated in a certain direction, and the sheet-like material S is wound around its outer periphery in a roll shape, and the fully wound roll 4 passes over the one winding roller 2 When transferred onto the auxiliary roller 3, the arm 6 of the winding mechanism 5, which is provided coaxially with the winding roller 2, rotates from the position indicated by the two-dot chain line to the position indicated by the solid line, and extends from the fully wound roll 4. After winding the sheet-like material S around an empty core T supplied to the valley between the take-up reels 1 and 2 and cutting it with the cutter 7 under the required tension, the cut end is passed through the air at the tip of the arm 6. The nozzle 8 blows toward the winding core T side, and the winding start end is inserted into the contact area between the winding core T and the winding roller 1 at the tip of the insertion plate 9 to start the winding process. Arm 6 of the winding mechanism 5
Then, the insertion plate 9 is returned to its original position, the auxiliary roller 3 is rotated in the direction of arrow B, the full roll 4 is driven, and the tail end of the sheet material S is wound around the outer periphery of the full roll 4. I'm starting to do that.

(Problem to be Solved by the Invention) However, in such a conventional two-roll valley winding type winding device, the sheet-like material S is transported at a substantially constant speed from a storage device such as an accumulator (not shown) provided in the previous step. When the full roll 4 is moved onto the auxiliary roller 3, a large tension is applied to the sheet S extending from the full roll 4, so the arm 6 of the winding mechanism 5 is When the sheet material S is turned in the winding direction, the length of the sheet material S is insufficient at the beginning of winding, and the tension of the sheet material S is further increased, leading to the risk of accidental cutting and the empty winding core T. There is a problem that the winding operation after cutting becomes inaccurate, and there remains room for further improvement in this respect.

The present invention was developed by focusing on the problem of the insufficient length at the start of winding, which existed in the conventional two-roll valley winding device. When cutting a sheet-like material, the auxiliary roller is temporarily rotated in the direction corresponding to the required length to loosen the winding, thereby creating a length margin near the cutting point of the sheet-like material. The purpose is to ensure the winding operation by ensuring a sufficient length at the start end of the winding, thereby solving the above-mentioned problems.

(Means for Solving the Problems) The structure of the present invention for achieving the above object will be explained with reference to the accompanying drawings FIGS. 1 to 5.

The two-roll valley winding device of the present invention has two rolls that are supported adjacent to each other and rotated in the same direction.
Book take-up rollers 12 and 13 and the take-up roller 1
One auxiliary roller 1 is supported in parallel with the take-up roller 13 on the full roll release side near 2 and 13.
9, and when the winding rollers 12 and 13 are rotationally driven in a constant winding direction, both winding rollers 1
The winding core T placed and held in the trough between 2 and 13 rotates in the winding direction, and the sheet material S is wound around its outer periphery in the form of a roll.

The auxiliary roller 19 is similar to the winding rollers 12 and 13.
The fully wound roll R is placed and received from above, and the fully wound roll R is transferred from above the winding rollers 12 and 13, and a new layer is placed in the valley between the winding rollers 12 and 13. A winding core T is supplied, and prior to winding the sheet-like material S around the winding core T, the winding core T and a fully wound roll R are
When cutting the sheet material S, the direction corresponding to the loosening of the winding of the fully wound roll R, and after the sheet material S is cut, the direction corresponding to the winding of the tail end of the fully wound roll R. That is, it is designed to be rotationally driven in forward and reverse directions.

The means for driving the auxiliary roller 19 in the forward and reverse directions include an air cylinder 24 that can rotate the auxiliary roller 19 only in the direction corresponding to slack winding, and a drive motor 35 that can drive the auxiliary roller 19 rotationally only in the direction corresponding to winding of the tail end.
It is possible to use a drive means in which the rollers are connected to the auxiliary roller 19 via clutches 26 and 36, respectively, and one-way clutches are normally used as the clutches 26 and 36.

(Function) The two-roll valley winding type winding device of the present invention having the above configuration winds up the surface of the sheet material S around the empty winding core T on the side of the winding rollers 12 and 13, and winds up the sheet-like material S on the surface of the empty winding core T. When the full roll R is moved onto the auxiliary roller 19 and received thereon, the auxiliary roller 19 is rotated by the actuator 24 in the direction of arrow C in FIG. 2 via the clutch 26 to unwind the fully wound roll R. Take-up roller 1 by rotating it in the direction (arrow C' direction).
After cutting the sheet-like material S in the width direction by an appropriate cutting mechanism while leaving a margin for the length of the sheet-like material S passing over 2 and 13, the starting end of the sheet-like material is cut by a winding mechanism as shown in Fig. 3. At the same time as winding the new empty core T supplied onto the winding rollers 12 and 13 and starting surface winding, the auxiliary roller 19 on which the full roll R is placed is moved by the drive motor 35 to close the clutch 36. By rotating the full roll R in the direction of arrow B in FIG. It can be wrapped around the outside. Therefore, during the cutting process and the process of winding the winding start end onto the empty winding core T, there is a length margin in the sheet-like material S on the winding rollers 12, 13, so that the winding start end length is sufficiently long. Therefore, it is possible to reliably perform the winding operation on a new empty winding core T.

(Example) Hereinafter, an example of the present invention will be described in detail based on the accompanying drawings.

1 to 4 are schematic diagrams of a two-roll valley winding type winding device according to the present invention, and FIG. 5 is a plan cross-sectional view of the same winding device.

In these figures, 11 is a frame of the winding device, and 12 and 13 are two winding rollers supported parallel to each other by the frame 11 at a required interval. sprocket 16 fixed to the ends of shafts 14, 15;
A chain 18 wound around the winding rollers 17 interlocks with each other and drives them in the same rotational direction (direction of arrow A). The core T is rotated, and the sheet material S sequentially supplied in the longitudinal direction from the previous process is wound around the outer circumference of the core T.

Reference numeral 19 denotes an auxiliary roller which is supported by the frame 11 in parallel with the take-up roller 13 on the full roll discharge side near the take-up rollers 12 and 13. A drive gear 21 is fixedly attached.

Reference numeral 22 denotes an idle shaft located between the winding roller 13 and the auxiliary roller 19 and supported by the frame 11 in parallel with both rollers 13 and 19. The proximal end of the arm 23 is fixed, and a piston rod 25 of an air cylinder 24 is connected to the distal end of the actuating arm 23. A one-way clutch 26 is attached to the outer periphery of the proximal boss portion 23a of the actuating arm 23.
The first ring gear 27 is rotatably supported in one direction only.

The first ring gear 27 is connected to the auxiliary roller 1.
9 and the drive gear 21 integrated with the winding roller 13 .
The arm 30 of the winding mechanism 29 is supported on the support shaft 15 of the winding mechanism 29 via bearings 28, 28', and is engaged with a gear portion 31 formed integrally with the boss of the arm 30 of the winding mechanism 29. Also,
The first ring gear 2 is attached to the idle shaft 22.
The boss portion 32a of the sprocket 32 is fitted adjacent to the sprocket 7 so as to be relatively rotatable, and the sprocket 32 receives the output of the drive motor 35 for winding the tail end through the chain 33 and the sprocket 34, which are wound around the gear portion 32b. A second ring gear 37, which is connected to the shaft and supported by the boss portion 32a of the sprocket 32 so as to transmit power only in one rotational direction via the one-way clutch 36, is fixed to the shaft of the auxiliary roller 19. It meshes with the drive gear 21.

The arm 30 of the winding mechanism 29 has a guide roller 38 for guiding the sheet S at its swing end side, and a winding start end of the sheet S cut by a disc-shaped cutter 39 of a known cutting mechanism. It is equipped with an air nozzle 40 that blows the winding core T around the outer periphery of a new empty winding core T placed in the valley between the winding rollers 12 and 13.

Reference numeral 41 denotes an insertion plate for inserting the winding start end of the sheet S blown off by the air nozzle 40 into the contact area between the winding core T and the winding roller 12, and an arm supporting the insertion plate 41. 42
is adapted to be oscillated between a retracted position shown in FIG. 1 and an inserted position shown in FIG. 3 using a support shaft 43 as a fulcrum by a drive mechanism (not shown).

The two-roll valley winding type winding device of the present invention has the above-mentioned configuration. Next, its operation will be explained. First, the winding core T is placed in the valley between the winding rollers 12 and 13. By rotating the winding rollers 12 and 13 in the same rotational direction, the winding core T is driven and rotated in a fixed direction, and the sheet-like material S is wound around the outer circumference of the winding core T. The rotation of the take-up rollers 12 and 13 is stopped, and the full roll R is moved over the take-up roller 13 onto the auxiliary roller 19 as shown in FIG. 1, and a new empty core T is moved.
The sheet material S is placed in the valley between the take-up rollers 12 and 13.
Place it from the top.

In this state, the air cylinder 24 is operated, the piston rod 25 is contracted, and the arm 2
3 in the direction of arrow D in FIG. The drive gear 21 that meshes with the ring gear 27 rotates in the direction of arrow C in FIG. Rotate to.

At this time, the fully wound roll R placed on the auxiliary roller 19 rotates in the loosening direction (direction of arrow C' in FIG. Since the sheet-like material S from the trough to the contact portion of the auxiliary roller 19 has a length margin, the winding start and end winding operation by the winding mechanism 29 is facilitated.

In addition, in the state shown in FIG. 2, the winding mechanism 2
9 moves to the top of the winding core T and the sheet-like material S is cut in the width direction by a disc-shaped cutter 39 of a known cutting mechanism, when the winding start end of the sheet-like material S on the winding core T is connected to the air nozzle. The compressed air blown out from the winding core T is blown away and covered over the top of the winding core T, and the arm 42 rotates as shown in FIG. In order to insert the winding rollers 12 and 13 into the contact portion with the winding roller 12, when the winding rollers 12 and 13 are rotated in the winding direction (direction of arrow A in FIG. 3), the winding core T rotates accordingly, and its outer periphery is rotated. The sheet-like material S is sequentially wound around.

Next, when the drive motor 35 is started at approximately the same time as the winding of the sheet material S around the winding core T starts as shown in FIG.
In order to rotate the sprocket 32 in the direction of arrow F in FIG. Since the auxiliary roller 19, which is interlocked with the drive gear 21, rotates in the direction of arrow B in FIG. 3, the full roll R placed on the auxiliary roller 19 rotates in the direction of arrow B'. It rotates, and the tail end cut by the disc-shaped cutter 39 is wound around its outer periphery. Further, when the drive gear 21 is rotating in the direction of arrow B in FIG.
The gear portion 31 of the arm 30 interlocked with the first ring gear 27 rotates in the direction of arrow G, and the arm 30 integrated therewith moves to the retracted position shown by the two-dot chain line in FIG.

On the side of the auxiliary roller 19, when the end of the roll is wound around the outer periphery of the fully wound roll R and the winding is completed, the fully wound roll R is unloaded from the auxiliary roller 19 by a transfer means (not shown), and then the next Transported to the process.

In this way, when the process of winding the sheet material S around the winding core T on the winding rollers 12 and 13 side has started, and the winding process of the tail end on the auxiliary roller 19 has been completed, the process shown in FIG. The arm 42 is rotated to retract the insertion plate 41 to a position where it does not interfere with surface winding, and the winding of the sheet material S around the winding core T is continued until the winding is fully wound.

In the above embodiment, when winding the starting end of the sheet material S onto a new empty core T, the air cylinder 24 winds the auxiliary roller 19 via the clutch 26 in the loosening direction, that is, in the second direction.
The drive motor 35 rotates the auxiliary roller 19 via the clutch 36 in the direction corresponding to winding the end of the roll, that is, after the sheet material S is cut, the drive motor 35 rotates the auxiliary roller 19 in the direction corresponding to winding the end of the roll, that is, the direction corresponding to winding the end of the roll. Although a mode in which the auxiliary roller 19 is rotated in the direction of the arrow B in FIG. It can be easily configured.

In addition, when the air cylinder 24 and the drive motor 35 are connected to the auxiliary roller 19 via the clutches 26 and 36 as in the above embodiment, and the two systems of drive mechanisms are actuated alternately, the clutches 26 and 36 are In addition to using a one-way clutch, it is also possible to use a known optionally detachable clutch.

(Effects of the invention) As described above, the two-roll valley winding type winding device of the present invention rotates two winding rollers that are journalled adjacent to each other in the same direction. In a two-roll valley winding type winding device that holds a winding core on a trough and rotates the winding core to wind up a sheet-like material on its outer periphery, a full roll near the winding roller is used. On the discharge side, an auxiliary roller capable of placing and receiving the full roll is supported in parallel with the take-up roller, and the auxiliary roller is moved from above the take-up roller to take up the roll. When a new winding core is supplied to the valley between the rollers and the sheet-like material is cut between the winding core and the full-wound roll before winding the sheet-like material around the winding core, the full-wound roll is cut. At the same time, after the sheet-like material is cut, the auxiliary roller is rotated in a direction corresponding to winding of the tail end of the fully wound roll, and the sheet-like material is automatically wound onto the fully wound roll. Therefore, when cutting the sheet-like material extending from the full roll before winding the sheet-like material onto the core, a length margin is created in the sheet-like material, Excessive tension is not applied, so there is no risk of the sheet-like material being cut unexpectedly, and the cutting is performed normally, thereby ensuring that the subsequent winding start and end winding operations on the new winding core are performed more reliably. It has an excellent effect of being able to

[Brief explanation of the drawing]

1 to 4 are side views showing an outline of a two-roll valley winding type winding device according to the present invention, FIG. 5 is a plan cross-sectional view of the winding device, and FIG. 6 is a conventional two-roll winding device. FIG. 2 is a schematic diagram showing an example of a valley winding type winding device. 12, 13... Winding roller, 19... Auxiliary roller, 24... Air cylinder, 26, 36... Clutch, 29... Winding mechanism, 35... Drive motor, T... Winding core, R... Full roll, S...sheet-like material.

Claims (1)

[Scope of utility model registration request] Two take-up rollers that are journalled adjacent to each other are driven to rotate in the same direction, a core is placed and held in the valley between the two take-up rollers, and the core is rotated to form a sheet around its outer periphery. In a two-roller valley-winding type winding device for surface-winding a material, an auxiliary roller capable of placing and receiving the full roll is provided on the full roll release side near the take-up roller and the winding roller. A full roll is transferred from above the take-up roller, a new core is supplied to the valley between the take-up rollers, and the sheet-like material is wound around the core. Prior to cutting the sheet-like material between the core and the fully wound roll, in the direction corresponding to the loosening of the fully wound roll, and after cutting the sheet-like material,
A two-roller valley winding type winding device characterized in that it can be selectively driven in a direction corresponding to winding of a tail end of a full roll.