JPH03120145A - Turret type rewinding machine and winding shaft driving method thereof - Google Patents

Abstract

PURPOSE:To perform rewinding in each winding shaft by using all the winding shafts, arranged on a turret, while in only two shafts by using these opposed two shafts, by easy clutch operation. CONSTITUTION:When rewinding is performed in small size, a clutch 7 is actuated, with adjacent winding shafts rotated respectively by individual motors M1, M2, to position the adjacent winding shafts 1A, 1C one after another in a rewinding position by turning a turret by a predetermined angle, and by rewinding successively in each winding shaft, the rewinding is performed as a small size roll. Here at the time of turning the turret, a length of a web, extended in both the winding shafts, is shortened because of small distance between the winding shafts, further fluctuation of tension is prevented from being easily generated with a less loss part because each winding shaft can be individually controlled. On the other hand, in the case of rewinding in large size, the two predetermined shafts are used respectively with 180 deg. turning of the turret, but here because the distance between the shafts is distant, no interference is generated between the rolls.

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention is a multi-axis turret type winding machine that allows a single winder to wind everything from a large diameter roll to a small diameter roll with minimal loss. The present invention relates to a method for driving a winding shaft of a take-up machine and its device.

(Prior art) Generally, a turret type winder winds the web to a predetermined diameter on a core at the winding position, then rotates the turret at a predetermined angle to switch the positions of the full roll and the new core. The web extending between the two is cut using an appropriate means, one of the cut ends is wound onto a new core, and the other is wound onto a full roll to perform a series of winding processes. There are large-diameter winding and small-diameter winding depending on the winding diameter, but regardless of the diameter, the winding position changes during the turret rotation and the bus length changes during the above series of processes. As a result, the tension of the web tends to fluctuate, which inevitably causes wrinkles in the web and uneven areas in the width direction.

The above-mentioned portion becomes web loss, and the yield of a turret type winder is expressed as the ratio of this portion to the winding length. However, even when winding to each diameter mentioned above, especially when winding a small diameter, the above-mentioned loss occurs. The length ratio tends to increase and the yield decreases significantly, so conventionally the number of winding core shafts in the winder is increased to shorten the turret rotation time and the distance between the full roll and new winding core. It was thought to do.

However, if the number of winding cores is increased in this way, although it may be possible to wind small diameters, the distance between the shafts becomes too short when winding large diameters, causing interference between the rolls and making winding impossible. However, in the case of large-diameter winding, a two-shaft turret type winding machine is usually used.

(Problems to be Solved by the Invention) As mentioned above, when winding with a turret type winder, it is preferable to increase the number of winding cores and shorten the center distance for small diameter winding, but on the other hand, for large diameter winding, There is a paradox in that the longer the distance between the shafts, the more advantageous it is, and if the small-diameter roll is wound with a winder with a turret rotation angle of 180 degrees and a long rotation time, this will avoid significant economic disadvantages. There wasn't.

The present invention has focused on such a fact, and has as its object to enable a single turret type winder to be adapted to both large-diameter winding and small-diameter winding, and to wind it effectively. In a turret-type winding machine equipped with at least two pairs of winding shafts, one pair being two facing each other, small-diameter rolls can be easily The purpose is to enable wide winding from small diameter rolls to large diameter rolls, and to shorten the loss length that occurs when winding small diameter rolls.

(Means for Solving the Problems) That is, the features of the present invention to meet the above object are as follows: First, at least two pairs of winding shafts, two of which are arranged opposite to each other, are used. In a turret-type winding machine installed on the left and right turret side plates, separate motors are arranged on the outside of the left and right turret side plates, respectively, so that one motor drives the pair of winding shafts, and the other motor drives the other winding shafts. A pair of winding shafts can be driven respectively, and a first clutch is interposed for each winding shaft in the middle of the drive system between the motor and the winding shaft, and furthermore, one of the winding shafts can be driven. The first clutch of the winding shaft is a turret type winding machine in which a second clutch is provided between the other motor and the winding shaft on the other side to enable the other motor to drive the winding shaft. The other method is to use the above-mentioned multi-shaft turret type winder, and in the case of small-diameter winding, the above-mentioned multi-shafts are sequentially positioned at the winding position by rotating the turret, and the winding shaft at the winding shaft position is It is used as a multi-spindle turret type winder by operating the first clutch on the winding shaft adjacent to the winding shaft in the direction of rotation of the turret, and in the case of large diameter winding, the winding shaft equipped with the second clutch and the winding shaft adjacent to the winding shaft in the turret rotation direction are used. The winding shaft and the winding shaft located opposite to each other are sequentially positioned at the winding position by turning the turret, and the former winding shaft operates the second clutch, and the latter winding shaft operates the first clutch. The drive method is used as a shaft talent type winder.

Here, the multi-spindle turret type winding machine has two winders facing each other.
Two or more pairs of winding shafts are required, with each book being one pair, and in practice, four is most common, but the same driving method can be applied to six.

In other words, when there are three pairs of winding shafts, one pair being two facing each other, that is, six winding shafts, the rotation of the turret sequentially
Each winding shaft is located at the winding position, and the winding shaft at the winding position,
A clutch is actuated on each of the winding shafts adjacent to each other in the direction of rotation of the turret, and the winding machine is used as a six-shaft turret type winding machine.On the other hand, among the two winding shafts facing each other, each set of winding shafts is sequentially wound by the rotation of the turret. position and actuate a respective clutch for each winding shaft to drive it so that it functions as a two-shaft talent-type winder.

Note that, strictly speaking, the winding shaft in the above refers to a shaft that holds a winding core around which a web, sheet, etc. is wound, but for convenience, the winding shaft is used herein to include the winding core.

(Function) The turret type winder configured as described above can be used as a multi-shaft turret type winder by switching the winding shafts and using all the installed winding shafts, and only using two opposing shafts. It is used as a two-shaft turret type winder.

When winding small diameters, use all the above axes,
On the other hand, when performing large diameter winding, by using two opposing shafts, winding with a small loss length ratio can be performed with one machine in either case.

That is, when winding a small diameter, the clutch is activated, the adjacent winding shafts are rotated by the motors on each side, and the turret is rotated at a predetermined angle to position the adjacent winding shafts one after another at the winding position. It is wound up as a small diameter roll by winding it around a shaft.

At this time, the length of the web extending on both winding shafts when the turret rotates is shortened because the distance between the winding shafts is small, and since each winding shaft can be controlled individually, tension fluctuations are less likely to occur, and the above-mentioned loss portion is reduced. Become.

On the other hand, when winding to a large diameter, two predetermined axes are used with the turret rotating 180 degrees, but in this case, the distance between the axes is large, so the interference between the rolls as described above is less likely to occur.

Then, by operating a predetermined clutch, the rotation of the two opposing winding shafts is controlled by different motors,
As in the case of small-diameter winding, the loss portion can be shortened by reducing tension fluctuations due to turret rotation.

(Embodiment) Hereinafter, embodiments of the turret type winding machine according to the present invention will be further explained based on the drawings. Figs. 1 and 2 show a turret type winding machine having four winding shafts facing each other. A plan view drawn for each two-volume shaft, Figure 3 (a) is its left side view, Figure 3
Figure (0) is a right side view.

In these figures, (2L) and (2R) represent a pair of turret side plates, (IA), (1B), and (IC
) and (ID) indicate each of the four winding shafts.

Further, (4) is each drive shaft of each of the winding shafts (IA to 10), which is rotated by a means to be described later, and which is rotated by means to be described later.
) is meshed with a gear provided around the rotary chuck (3) via a gear (5) that is rotatably attached to the rotary chuck (3), thereby appropriately rotating each winding shaft (IA-10).

As shown in Fig. 1, two opposing winding shafts (IA), (
Each drive shaft (4) of the IC) is connected to the same turret side plate (2L
), but here, one of the winding shafts (IC)
Only the drive shaft (4) is also attached to the other turret side plate (2R).
Insert. On the other hand, another opposing two-volume shaft (IB),
As shown in FIG. 2, (10) has its drive shaft (4) inserted through a turret side plate (2L) different from the above.

And each drive shaft (4) has a turret side plate (2L),
(2R) Extends outward to rotatably support the small rotating member (6), and further has a latch (7) pivotally attached to the shaft end so as to be able to come into contact with and separate from the small rotating member (6).

On the other hand, motors (Ml) and (Mz) are installed on the outside of each of the left side plates (2L) and (2R), respectively.

(6) causes the small rotating member (6) on the same side to rotate. That is, each turret side plate (2L)
, (2R), the rotary body (9) rotatably provided on the central axis (8) is connected to each motor (L) through a belt αΦ, etc.
(L), and the small rotating member (6) is meshed with this rotating body (9), so that the motor (Ml
), (M, ), the small rotating member (6) is configured to rotate.

The rotation of the small rotating member (6) can be transmitted to each drive shaft (4) by connecting the corresponding clutch (7), thereby allowing each winding shaft (IA to
10) is rotated as appropriate.

If this is further seen in the side view of Fig. 2, as shown in Fig. 2 (A), the opposing two-wound shafts (IA) and (IC) are motorized by actuating the clutches (7A) and (7C), respectively. (?ll), and on the other hand, as shown in (II) of the same figure, two opposing two-winding shafts (1B), (
10) and yet another winding shaft (IC) can be driven by a motor (Mt) by respectively operating clutches (7B), (7D), and (7C)'.

In other words, which motor (Ml), (
Mt) can also be driven. In addition, the following two-volume shafts (IA), (IC) (or two-volume shafts (IB), (
10) ) can be rotated by the same motor (Ml) (or motor (Mt)), and the latch (7A)
, (7C) (or clutch (7B), (7
D) ) are all referred to as the first clutch (71), and the other clutches (7C)' are referred to as the second clutch (72). Next, the operation of the turret type winder will be explained below.

As mentioned above, the turret type winder according to the present invention has a winding shaft (
It is possible to use all of the winding shafts (IA to IA to
All rotations from A to ERO) are performed by operating the first clutch (71).

That is, in FIG. 4(a), the first clutch, that is,
The winding shaft (IA), which is rotated by the motor (Ml) by the operation of the clutch (7A), winds up the web (control) to a predetermined diameter at the winding position (I), and then rotates the turret by 90 degrees, causing the winding shaft (IA) to rotate as shown in the figure. position (position), and winding position (1
) is located the winding shaft (ID). And this winding shaft (ID
) by actuating the first clutch, that is, clutch (7D), the winding shaft (ID) starts rotating by the motor (M). (ID), and then the web (10) extending between both winding shafts (IA), (10)
-) is cut by known means, and one of the cut ends is wound around the winding shaft (ID) to start a new winding.

The other end of the cut end is wound onto a roll of a winding shaft (IA) to form a predetermined full roll.

When used as a 4-shaft in this way, by switching the first clutch one after another, the adjacent winding shafts (IA
), (10) are mutually different motors (Ml).

(Rotate one after another with 111 rotations until all the winding shafts (IA~10
) The web (-) can be wound up on the web (-), but of course the appropriate winding diameter at this time is a small diameter winding, a short distance between the shafts, and a drive means that can be controlled for each winding shaft (IA to 10). As a result, tension fluctuations during turret rotation are extremely small.

Next, when using it as a two-shaft turret type winder, the second
A winding shaft (Ic) provided with a clutch and a winding shaft (IA) located 180 degrees opposite to the winding shaft (IC) are used. At this time, the rotation of the former winding shaft (IC) is controlled by the motor (Mz) by engaging and releasing the second clutch, that is, clutch (7C)', while the latter winding shaft (l^
) is of course controlled by the motor (Ml) through the intervention of the clutch (7A).

The two winding shafts (IA) and <IC) are sequentially positioned at the winding position by rotating the turret through 180 degrees, and the winding position (I ) and cut the web (-) in the same manner as above to obtain a full roll. Needless to say, both winding shafts (IA),
Since the (IC) intervals are far apart, this winder is ideal for winding large diameters.

Note that the other two winding shafts (IB), (10) do not need to be used as winding shafts, so this winding shaft (IB), (1
Of course, the clutches (7B) and (7D) attached to the winding shaft (IB) and (
It is preferable to install a guide roller in place of 10).

As explained above, the present invention has four winding shafts (IA to 10).
Although it is possible to use this as a 4-shaft turret type winder or a 2-shaft turret type winder by providing a The same thing can be done by making it . In this case, the winding machine can be used as either a 6-shaft turret type winder or a 2-shaft turret type winder, and the range of winding diameter selections can be expanded.

By the way, when six winding shafts (1) are arranged, the drive shaft (4), clutch (7), etc. are arranged so that the adjacent winding shafts can be rotated by different motors (Ml), Ob). , it becomes possible to rotate the two-wound shafts (11 with four different motors (L)) facing each other, and there is no need for a second clutch as in the case of four shafts.

And when performing small diameter winding using all 6 axes,
As described above, each clutch (7) attached to each of the two adjacent winding shafts (11) is switched as appropriate, and when the two shafts are used for large diameter winding, the appropriate one of the two opposing winding shafts is used. 1
All you have to do is select a set and operate in the same way as above.

Furthermore, in the present invention, it is theoretically possible to arrange an even number of winding shafts as described above, but from a practical standpoint, it is preferable to arrange four or six winding shafts. is advantageous.

(Effects of the Invention) By using the winding machine and drive method as described above, the present invention can easily wind the web and wind it onto each winding shaft using all the winding shafts arranged on the turret with a latch operation. You can also use two opposing axes to
It is also possible to wind only these two pieces.

Therefore, in the former case, the turret type winder is optimal for small diameter winding, and in the latter case, the turret type winder is optimal for large diameter winding, and both can be used for winding.

Therefore, in order to improve the yield of the turret type winder, there is no need to prepare separate winders for small diameter winding and large diameter winding, and one winder can be used for both. Not only is it economically advantageous, but also the installation space can be saved and the operation is simple.

[Brief explanation of drawings]

1 and 2 are plan views showing an embodiment of a turret type winder according to the present invention, FIG. 3 is a side view thereof, and FIG. 4 is an explanatory view showing a method of driving a winding shaft. (1) ... winding shaft, (IA) - (IC) ... winding shaft, (2L) - (2R) ... turret side plate, (Ml) -
(M2)...Motor (71)...First clutch, (72)...Second clutch.

Claims (1)

[Scope of Claims] 1. In a turret type winding machine in which at least two pairs of winding shafts are provided on the left and right turret side plates, two winding shafts arranged facing each other are provided on the left and right turret side plates, respectively. , separate motors are arranged so that one motor can drive the pair of winding shafts, and the other motor can drive the other pair of winding shafts, and each winding shaft has a first motor. A clutch is interposed between the drive system of the motor and the winding shaft, and the first clutch of any one of the winding shafts is a clutch between the other motor and the winding shaft on the other side. A turret type winding machine characterized in that a second clutch is provided between the winding shaft and the winding shaft so that the winding shaft can be driven by the other motor. 2. Using the turret type winding machine according to claim 1, by rotating the turret, adjacent winding shafts are successively positioned at the winding position, and the winding shaft at the winding shaft position and the winding shaft adjacent to the winding shaft in the turret rotation direction are Each motor and the first clutch are operated to use it as a multi-shaft turret type winder, and the winding shaft with the second clutch and the winding shaft located opposite to the winding shaft are connected to the turret. The winding machine is used as a two-shaft turret type winding machine by sequentially positioning it at the winding position by turning and operating the second clutch for each motor and the former winding shaft, and the first clutch for the latter winding shaft. A turret type winder and its winding shaft drive method, characterized by: