JP2012121697A - Two-shaft turret type winding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow proper winding without causing creases or a winding failure in rewinding, in web winding, in particular, by a two-shaft turret type winding device having a relatively long turning distance.SOLUTION: In this two-shaft turret type winding device where a continuously running web W is wound around a turret type winder through a contact roller 2 without being stopped, a full winding shaft (a) is replaced with a new winding shaft (b) by turning of a turret when reaching full winding, and the web W is cut by a cutting blade 3 between the full winding shaft and the new winding shaft. In the two-shaft turret type winding device, a full winding following roller 4 adjacent to the full winding shaft is arranged above the turret T, and the following roller 4 is linearly operated to follow the full winding in response to the turning of the turret T when the full winding shaft (a) is replaced with the new winding shaft (b) by the turning of the turret.

Description

  The present invention relates to a twin-screw turret type winding device, and more specifically, when replacing a full winding shaft and a new winding shaft, the full winding shaft is separated from a contact roller adjacent to the full winding shaft by turning the turret, and the winding product roll is wrinkled. The present invention relates to a biaxial turret type winding device provided with a rewinding follower roller for preventing the occurrence.

  A turret winder usually winds a web sent through a guide roller through a contact roller that is close to or in contact with the winding shaft of the turret, and becomes full when it reaches a certain winding length. The take-up shaft and the new take-up shaft are switched by turning the turret, and the winding end is cut and re-wound to the new take-up shaft. Since the contact roller that is being moved away from the winding position of the wound product roll, wrinkles and poor winding portions are generated on the wound product roll.

Therefore, two contact rollers, a contact roller close to the new winding shaft and a contact roller close to the full winding shaft, are provided during rewinding, and these contact rollers are always in contact with the winding shaft during rotation and are crimped. Is known to make it possible. (For example, see Patent Document 1)
However, as described above, the method in which the contact roller is pressed against the take-up shaft can be used for webs that can be pressed into contact with the take-up shaft. It has been difficult to implement a film or the like because the take-up shaft is difficult to follow the position change caused by turning the turret with a slight gap, and the web taken up during turning the turret is lost as a failure.

However, recently, it has been demanded that high-quality webs can be wound with high quality, and the present applicant has first applied the first contact roller close to the new winding shaft and the fully wound shaft. A device has been proposed in which adjacent second contact rollers are provided so that each roller has a small gap with respect to each winding diameter, and when rewinding, the respective winding diameters are tracked while maintaining a small gap. (See Patent Document 2)
However, the follow-up device proposed above is sufficiently effective when the pivoting distance between the winding shafts is relatively short, but the positional relationship is sufficient when the pivoting distance between the winding shafts is long. It was unreasonable, unable to follow up properly, and found that there was room for improvement due to problems in eliminating defective products.

JP 2006-8346 A JP 2010-168128 A

  In view of the actual situation as described above, the present invention is particularly intended for a biaxial turret winding device, and in this device, a guide roller is provided as a follower roller on the upper part of the turret, and a follower mechanism that moves the follower roller up and down and moves straight is combined. The purpose of the present invention is to make it possible to properly wind a wound product roll that maintains high quality, and in particular, a highly functional web product roll.

  That is, the feature of the present invention that meets the above-described purpose is that the web that is continuously flowing is wound on the turret winder through the contact roller without stopping, and when the full winding is reached, the turret is swung. In a 2-axis turret winder that replaces the winding shaft and the new winding shaft and cuts the web with a cutting blade between the full winding shaft and the new winding shaft, the full winding follower roller close to the full winding shaft on the turret When the fully wound shaft is replaced with a new winding shaft by turning the turret, the following roller is lowered following the turning of the turret, and then linearly moved straight to reach the full winding shaft. It is characterized by providing a follow-up mechanism for following up.

  According to a second aspect of the present invention, the follower mechanism holds both ends of the roller shaft of the follower roller on a slide bearing that is moved up and down by a lift cylinder, and is aligned with a fully wound shaft by rotation of a ball screw that is inclined in a winding frame and provided in a straight line. It is characterized by comprising the structure which carries out the following operation | movement.

  As described above, according to the present invention, the follower roller (guide roller) is provided in the upper part of the turret so as to be close to the full winding shaft. When the turret is turned, the follower roller is operated in a straight line so that the turret is turned. In this case, even with a biaxial turret with a relatively long turning distance between the full winding shaft and the new winding shaft, the winding will not follow up the full winding shaft during the turret rotation, and the winding will continue with proper approach. In particular, it is possible to wind a high-functionality web with high quality without causing any defects during rewinding.

1 is an overall schematic diagram of an apparatus according to the present invention. It is a structure schematic diagram which shows the example of a follow-up mechanism which makes the principal part of this invention. It is a linear operation mechanism explanatory drawing of the following mechanism. It is explanatory drawing at the time of the state fully wound by the winding shaft. It is explanatory drawing at the time of the follow-up roller descending in the turret rotation following FIG. It is explanatory drawing which shows the tracking state of a tracking roller during turret rotation. It is state explanatory drawing when a turret rotation is complete | finished and the tracking of a tracking roller is complete | finished. It is a web cutting state explanatory drawing. It is explanatory drawing which shows the state at the time of the winding start of a new winding shaft.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is an outline of the overall configuration of the apparatus of the present invention. A web W that is continuously flowing passes through a contact roller 2 through a guide roller 1 and is wound on a winding shaft a arranged on one side of the turret T. When full winding is reached, the full winding shaft a and the new winding shaft b on the other side are switched by turning the turret T, and the web W is moved between the full winding shaft a and the new winding shaft b by the cutting blade 3. Cutting is the same as in the conventional biaxial turret type winding device.

  Thus, the present invention device is the above-described two-axis turret type winding device, and in particular, the follower roller 4 made of a guide roller is provided in the upper part of the turret T apart from the contact roller 2 in the vicinity of the fully wound side shaft a. Thus, when the fully wound shaft a is replaced with the new winding shaft b by the turning of the turret T, it operates following the turret turning.

  2 and 3 are detailed structural views showing an example of a follow-up mechanism for operating the follow-up roller. The take-up frame F is axially attached to the frame, and is attached to the frame from the turret turning motor M via the worm gear 11. A follow-up roller 4 is pivotally mounted on an upper part of the turning turret T by an elevating cylinder 6 via an elevating part slide bearing 5 so that the elevating cylinder 6 can be moved up and down. The elevating cylinder 6, the slide bearing 5 and the follower roller 4 are integrated as a winding frame. F is slidably attached to F via a slide bearing 7 and a follow ball screw 8, and the follow roller 4 moves along the ball screw 8 in a straight line corresponding to the turning of the turret as shown in FIG. Follow-up operation is performed.

  It is to be noted that the winding shafts a and b, which are held via the air shaft 10 which can be widened, are supported by the winding chuck 9 between the turret plates opposed to the turret T and are swung by the turning motor M. The same as in the previous turret.

  4 to 9 sequentially show the operation modes of the follower roller 4 in the turret. FIG. 4 shows the web W flowing continuously from the previous step, wound around the guide roller 1 and the contact roller 2. It is in a state where it has been wound on the winding shaft a at the winding position and has reached full winding, and a fully wound product roll R is formed on the winding shaft a. In this case, the follow-up roller 4 is in a standby state at an upper fixed position apart from the fully-rolled roll R. Next, the turret starts to turn. At this time, as shown in FIG. 5, the follower roller 4 is lowered from the fixed position by the operation of the lifting cylinder described above. The turret turns, and the follower roller 4 is moved by the lowering of the lifting cylinder and the rotation of the ball screw during the turret turning, and sequentially moves in a straight line in the direction of the arrow as shown in FIGS. Follow the turn.

  Then, when the turret rotation further proceeds, the full winding shaft a reaches the predetermined replacement position, and the new winding shaft b reaches the winding position, the turret rotation ends, but the follower roller 4 remains in a straight line until this end point. Follow and finish following.

  Thus, when the replacement of the take-up shafts a and b is completed and the follow-up of the follow-up roller 4 is finished, the cutting blade 3 starts operating as shown in FIG. 8, and the web is cut between the take-up shafts a and b. Then, when the cutting is finished, winding and winding of the web W flowing on the new winding shaft starts. On the other hand, at this time, the follower roller 4 is lifted away from the full roll R wound around the full roll shaft a by the lift by the lift cylinder 6 and the sliding of the ball screw 8 in the opposite direction as shown in FIG. It moves in the opposite direction toward the original fixed position and prepares for the next follow-up.

  In the above description, the follow-up roller 4 is usually provided in the vicinity of the full roll R wound around the full roll shaft a at the upper part of the turret. It can be provided. However, since it is difficult to press contact with the full roll R in a highly functional film or the like, it is preferable to provide a close proximity with a slight gap without pressing. Further, the follow-up roller 4 does not need to be a contact roller, and a guide roller is sufficient, but of course, a contact roller may be used.

  Thus, in the present invention, when the turret winder is wound up through the contact roller and the full winding is reached, when the full winding shaft and the new winding shaft are switched by the turning of the turret, the follower roller follows the turning of the turret. Unlike the three axes, the follower roller follows a straight line even when the turning range is half the circumference of the turret. Winding can be continued, and winding can be performed without generating a defective product during rewinding. Therefore, the present invention can sufficiently and effectively cope with the winding of the high-functional film.

F: Winding frame T: Turret a: Full winding shaft b: New winding shaft 1: Guide roller 2: Contact roller 3: Cutting blade 4: Follow roller 5: Lifting part slide bearing 6: Lifting cylinder 7: Tracking mechanism Slide bearing 8: Follow ball screw

Claims (2)

  Without stopping the continuously flowing web, it is wound around the turret winder through the contact roller, and when the full winding is reached, the full winding shaft and the new winding shaft are switched by turning the turret. In the biaxial turret winder that cuts the web between the new winding shaft and the new winding shaft, a full winding follower roller that is close to the full winding shaft is provided at the top of the turret and the follower roller is moved to the full winding state. A two-shaft turret type winding provided with a follow-up mechanism so that when the winding shaft is replaced with a new winding shaft by turning the turret, it is lowered following the turning of the turret and then moved straight in a straight line. Taking device.   The configuration in which the tracking roller operates in a straight line is configured so that both ends of the tracking roller shaft are held by slide bearings that are moved up and down by a lifting cylinder, and are operated in a straight line by the rotation of a ball screw that is inclined in a winding frame and provided in a straight line. The biaxial turret type winding device according to claim 1.

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