JPH0295649A - Multispindle turret type take-up device - Google Patents

Abstract

PURPOSE:To prevent the entrainment of air and the generation of wrinkles in a marking device for plastic film and the like by providing a touch roll and a touch roll following mechanism for making the touch roll follow a take-up product roll at the swing time of the product roll. CONSTITUTION:Plastic film 37 is fed into a touch roll 20a and taken up while being pressed to the surface of a take-up product roll 31'. When the take-up quantity reaches the fixed quantity and a turret table 1 is swung in the direction of an arrow (a), an idle gear 24a and a planetary gear 18a is revolved in the direction of an arrow (c) while being rotated in the direction of arrows b, c. As a result, the planetary gear 18a is rotated by the same measure as the turret table 1 and turreted by means of an arm 19a integral with the planetary gear 18a so that the relation between a touch roll 20a and the product roll 31' is kept constant. With this structure, the entrainment of air and the generation of wrinkles can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to an improvement of a multi-axis turret type winding device for winding up a thin strip material such as a plastic film.

<Prior Art> Various types of winding devices have been provided for winding thin strip materials such as plastic films. There is a multi-spindle turret type winding device that enables winding.

As an example of this multi-axis turret type winding device, the 6th one is one that is applied to continuous winding of plastic film.
Figure (a) (bl (shown in cl).

As shown in FIG. 6(a), this consists of a rotatable turret main body 101 and a plurality of (in this case two) JJ take-offs 11kl O2a, 102 that are rotatably supported by the turret main body 101. b, and a touch roll 104 that holds the plastic film 103 at an appropriate holding angle at the winding position and presses it against the plastic film wound into a roll (hereinafter referred to as a rolled product roll) 103'. It is structured as follows.

The plastic film 103 fed through the guide roll 105 is held at an appropriate holding angle by the touch roll 104, and the plastic film 103 is held by the touch roll 104 at an appropriate holding angle, and
3' is wound around the winding shaft 102a while being pressed against the surface. Therefore, the plastic film 103 does not entrain air, and the occurrence of creases or defective rolled portions in the wound product roll 103' due to the entrainment of air is prevented. When the winding amount of the plastic film 103 by the drive shaft 102a at the steady winding position C reaches a predetermined amount, as shown in FIG. and 102b, and cut the plastic film 103 and rewind it onto the winding shaft 102b, which has newly arrived at the winding position C, and thereafter continues winding the plastic film 103 with the winding shaft 102b.

<Problems to be Solved by the Invention> By the way, in the multi-shaft turret type winding device as described above, when replacing the winding shafts 102a and 102b, the sixth
As shown in the figure (C1), the winding is done from the position of the touch roll 1.
Since 04 is separated, plastic fill 1103
This causes air to be drawn in, causing wrinkles and poor winding portions in the wound product roll 103'. Since wrinkles and the like on the wound product roll 103' are defective parts, they must be removed by unwinding after the rewinding is completed, which requires extra work and reduces the yield.

Therefore, as shown in Figure 7 tal (bl (C)),
A plurality of touch rolls j and 04 are provided, and the winding shaft 102a
.

Even when replacing the roll 102b, the rolled product roll 103'
It has been considered that the touch roll 104 follows in sequence.

However, even in such a winding device, when the touch roll 104 is replaced, the
As shown in FIG. 2, the plastic film 103 could not be properly held, and since the plastic film 103 entered from the tangential direction of the wound product roll 103', there was a risk that air would be drawn in and wrinkles would occur.

Means for Solving the Problems> In order to solve the above problems, the present invention provides a rotatable turret body with a plurality of winding shafts so as to be rotatable for winding. When winding of a predetermined amount of the thin strip material is completed, the turret body is rotated to move the one winding shaft to the wound product roll take-out position, and
In a turret-type winding device in which other winding shafts are moved to the winding position, each winding shaft is designed to press the thin strip material to be wound onto the winding shaft at the winding position against the rolled product roll. In addition, one or more touch rolls are supported and provided on the turret main body side, and when the wound product roll rotates together with the winding shaft due to the rotation of the turret main body, the touch rolls also roll up the thin strip material. A touch roll following mechanism is provided near the side so as to follow the rolled product roll while being in contact with or close to the rolled product roll.

Function> In the multi-axis turret type winding device having the above configuration, as the rolled product roll moves, the touch roll follows the rolled product roll while moving along the outer periphery of the rolled product roll, and the touch roll follows the movement of the rolled product roll. Since the thin strip material is always in contact with the thin strip material at the winding position of the product roll at a suitable contact angle (the center angle of the arc where the arc is the part where the 4m material and the touch roll are in contact), the air This prevents the roll from being rolled up, thereby preventing wrinkles and poor roll shape.

Embodiments FIG. 1 shows a side view of a multi-spindle turret type winding device according to an embodiment of the present invention, and FIGS. 2 to 4 show its operating state. Further, FIG. 5 shows the gear train of each mechanism of the multi-shaft turret type winding device. Note that this example is applied to continuous winding of a plastic film.

In this embodiment, the turret main body is constituted by a pair of disc-shaped turret tables 1, which are supported by a fixed base 2 so as to be rotatable about a horizontal axis. The turret table 1 is supported on the fixed base 2 by connecting the inner circumferential surface of a ring gear 4 integrally provided on the peripheral edge of the turret table l to the outer circumference of a ring-shaped guide portion 3 provided on the fixed base 2 using ball bearings. It has a structure in which it is fitted through 12. A turret drive gear 6 provided on a turret drive shaft 5 meshes with the ring gear 4. The turret drive shaft 5 is connected to a turret electric motor (not shown) via a reduction gear or the like.

Therefore, when the turret drive shaft 5 is driven and rotated, the turret table 1 is rotated, that is, the turret table 1 is rotated through the engagement between the turret drive gear 6 and the ring gear 4.

Two winding shafts 7a and 7b are supported on the turret table 1 so as to be rotatable for winding. Two winding shafts 7a and 7
b is arranged symmetrically with respect to the center of the turret table 1.

Cores 8a and 8b, which form the core of the wound product roll, are attached to and removed from these winding shafts 7a and 7b.

The support structure of the winding shafts 7a and 7b is the same, and as for the winding shaft 7a, as shown in FIG. The structure is such that a sleeve portion 11a of a driven gear 10a is rotatably supported, and a winding shaft 7a is supported within this sleeve portion 1a via a sliding key 13a. On the other hand, a fixed shaft 14 that is concentric with the turret table 1 and fixedly supported by a fixed part (not shown) passes through the center of the turret table 1. , a driving force transmitting gear 15 is rotatably supported, and an intermediate gear 16a meshes with both the driving force transmitting gear 15 and the winding shaft driven gear 10a.
is rotatably supported by a shaft 17a protruding from the turret table 1. Note that the driving force transmission gear 1
5 is connected to an electric motor for winding rotation (not shown).

Therefore, the winding shaft 7a is rotated for winding via the gears 15, 16a, 10a by the operation of the electric motor for winding rotation.

Note that the reason why the winding shaft 7a can be slid in the axial direction via the sliding key 13a is to allow the core 8a to be attached to and removed from the winding shaft 7a.

A planetary gear 18a is rotatably supported on the outer peripheral surface of the cylindrical body 9a that supports the sleeve portion 11a of the winding shaft driven gear 10a.

One end of a main arm 19a is integrally connected to this planetary gear 18a. The other end of the main arm 19a has a touch roll arm 21a equipped with a touch roll 20 at its tip.
The rear ends of the two are rotatably connected. Furthermore, an air cylinder 22a is provided between the main arm 19a and the touch roll arm 21a, and its operation causes the touch roll to
Is 0a the winding shaft? It is designed to be elastically pressed against the a side.

On the other hand, a fixed gear (sun gear) 23 is fixed to the end of the fixed shaft 14 passing through the center of the turret table 1, and an idle gear 24a meshes with both the fixed gear 23 and the planetary gear 18a. Turret table 1
It is rotatably supported by a shaft 25m protruding from the shaft. The fixed gear 23 and the planetary gear 18a have the same number of teeth.

In this embodiment, the fixed gear 23. Idle external gear 24a
, planetary gear 18a, and main arm 19a.

The touch roll arm 21a constitutes a touch roll following mechanism.

The structure on the winding shaft 7b side is also similar to that described above, and the same parts are indicated with the suffix "b" instead of the suffix raJ.

Also, below the turret table 1, there are
A cutter device 26 is provided as shown. The cutter device 26 is provided with an air cylinder 28 that operates in a direction parallel to the winding shafts 7g and 7b at the tip of a cutter arm 27 that can be driven to swing in the vertical direction. Furthermore, an air nozzle 30 is provided at the tip of the cutter arm 27 and positioned on the back side of the running cutter 29. Note that the shape, mounting state, and stroke of each part are adjusted so that when the cutter arm 27 is swung upward, the running cutter 29 comes to the side between the core 8a (or sb) and the touch roll 20a (or 20b). etc. are taken into consideration.

Further, on the supply side of the plastic film 31 in the turret table 1, a guide device 32 is provided for guiding the plastic film 31 when starting and rewinding the plastic film 31. As shown in FIGS. 3 and 4, this guide device 32 consists of a guide arm 33 that is vertically swingable and an arc-shaped film guide 34 provided at the tip of the guide arm 33. 33
When the film guide 34 swings downward, the core 8 on the empty take-up shaft 7a (or 7b) is moved at the end of the swing.
It is arranged to be close to the periphery of a (or 8b).

Next, the rewinding operation of the plastic film 31 by the multi-axis turret type winding device having the above configuration will be explained.

FIG. 1 shows the plastic film 31 being wound up by the winding shaft 7a located at the steady winding position A. The plastic film 31 passes through the guide roll 32, is wound around the touch roll 20a, and is wrapped around the air cylinder 22a.
The product is wound up while being pressed against the surface of the roll 31'. In other words, the plastic film 31 is wound up by the touch roll 20a at an appropriate holding angle.
1 does not involve air.

When the winding distance of the plastic film 31 by the winding shaft 7a reaches a predetermined amount (full winding state), the turret drive gear 6. Through the engagement of the ring gear 4, the turret table 1 is pivoted in the direction indicated by arrow a in FIG.

When the turret table 1 rotates, the idle gear 24a and the planetary gear 18a supported on the turret table 1 side move around the fixed gear 23 as shown by the arrow in FIG.
It revolves in the direction of arrow C while rotating in the direction shown by c.

Since the fixed tooth E[23 and the planetary gear 18a have the same number of teeth, the amount of rotation of the coolet table 1 and the amount of rotation of the planetary gear 18a are the same. That is, when viewed from a stationary system, the planetary gear 18a and the main arm 19a integrated therewith always maintain the same angle to the floor as a turret. Therefore, the touch roll 20a (as shown in FIG. The plastic film 31 is rolled up while being pressed against the winding product roll 31' side with the corner).Therefore, even in the turret of the winding product roll 31', the plastic film 31 does not entrain air; No associated problems will occur.

The turret table 1 is rotated 180°. Therefore, the rolled product roll 31' moves to the take-off position [B, and the empty winding shaft 7b moves to the winding position A. The take-up shaft 7a is driven and rotated until the plastic film 31 is completely re-wound onto the take-up shaft 7b, so that the plastic film 31 is continuously wound onto the take-up shaft 7a.

As shown in FIG. 3, when the positions of the winding shafts 7a and 7b have been swapped, the guide arm 33 of the guide device 32 rotates downward, and the guide portion 34 at the tip thereof
Approach the aspect of the upper core 8b. In addition, the cutter device 2
The cutter arm 27 of No. 6 also rotates upward, and the running cutter 29 comes to the side of the core 8b and the touch roll 20bllll (the side of the plastic film 31). Then, the running cutter 29 traverses the width direction of the plastic film 31 due to the operation of the air cylinder 28, thereby cutting the plastic film 31. The upstream end of the cut plastic film 31 is jetted from the air nozzle 30, and the core 8b rotates integrally with the winding shaft 7b.
b and is guided between the touch roll 20b which is rotating together with the core 8b, passes through the gap between the film guide 34 and the core 8b, and winds around the core 8b.

When the cutting and splicing of the plastic film 31 is completed as described above, the cutter device 26
The cutter arm 27 rotates downward, and the guide device 32
The guide arms 33 rotate upward and enter a standby state.

On the other hand, the winding product roll 31' is wound around the winding shaft 7a together with the core 8a.
The new core is then removed from the winding shaft 7a, and a new core is newly attached to the winding shaft 7a. During this time, the winding of the plastic film 31 by the winding shaft 7b at the winding position A continues.

Although the embodiments described above are equipped with two winding shafts, three or more winding shafts may be provided if the space of the turret table 1 permits. In that case, the take-out position B of the wound product roll 31' will also be different from the above embodiment.

There may be a plurality of touch rolls for one winding shaft.

Furthermore, the planetary gear 1 can also be used as a touch roll following mechanism.
It is not limited to those using the main arms 8a and 18b, but various types such as those that independently rotate the main arms 19a and 19b can be adopted.

Although the above embodiment applies the present invention to winding of plastic film, the multi-axis turret type winding device according to the present invention is applicable not only to plastic films but also to other thin strips such as paper and cloth. It is similarly applicable to winding of materials.

<Effects of the Invention> According to the multi-axis turret type winding device according to the present invention, even when turreting the wound product roll for rewinding, the touch roll moves on the outer periphery of the wound product roll. Touch and follow the same position, and roll 1 to this touch roll.
Since the thin strip material is rolled up after being cut, air is not trapped in the thin strip material, and the occurrence of wrinkles and defects in the rolled shape due to the entrainment of air are prevented. Therefore, the correction work that was conventionally required when wrinkles etc. are formed becomes unnecessary, and the product yield is also improved.

[Brief explanation of the drawing]

FIG. 1 is a side view of a multi-spindle turret type winding device according to an embodiment of the present invention, FIGS. 2 to 4 are operational state diagrams of the embodiment device, and FIG. 5 is a diagram showing each mechanism in the embodiment device. A sectional view showing the gear train, FIG. 6 is an explanatory diagram of a conventional multi-shaft turret type winding device, FIG. 7 is an explanatory diagram of another conventional multi-shaft turret type winding device, and FIG. 8 is an explanatory diagram of a conventional multi-shaft turret type winding device. It is an explanatory diagram of a malfunction. In the drawing, 1 is a turret table, 6 is a turret drive gear, 7a, 7b are winding shafts, 8a, 8b are cores, 14 is a fixed shaft, 18a, 18b are planetary gears, 19a, 19b are main arms, 20a, 20b is evening tchi'c2-4. 21a, 21b are touch roll arms, 22a, 22b
23 is a fixed gear, 24a and 24b are idle gears, 26 is a cutter device, and 32 is a guide device. Patent applicant Modern Machinery Co., Ltd. Agent

Claims (1)

[Claims] A rotatable turret body is provided with a plurality of winding shafts so as to be rotatable for winding, and when one winding shaft at the winding position finishes winding a predetermined amount of the thin strip material, the turret body is rotated to rotate the winding shaft. In a turret-type winding device in which one winding shaft is moved to a rolled product roll take-out position and another winding shaft is moved to a winding position, a winding shaft is moved to a winding shaft located at a winding position. One or more touch rolls are supported on the turret body side for each winding shaft in order to press the thin strip material to be rolled onto the winding product roll, and the winding product roll is rotated together with the winding shaft by the rotation of the turret body. It is characterized by being equipped with a touch roll following mechanism so that the touch roll follows the rolled product roll while being in contact with or close to the rolled product roll near the winding side of the thin strip material even when moving. A multi-spindle turret type winding device.