JP2010168128A - Follow-up system of two-shaft contact roller in multi-shaft turret winder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To take up a sophisticated web that cannot be taken up with a contact roller being press-contacted against a take-up shaft in a multi-shaft turret winder while providing a fine gap between the web and the take-up shaft, so that defect is not caused at winding and quality is not deteriorated. <P>SOLUTION: In the multi-shaft turret winder including a first contact roller 2 that is close to a new winding shaft (a) at winding and a second contact roller 3 that is close to a full winding shaft (b) at winding, the fist and second contact rollers 2, 3 are slightly spaced from their respective winding radii, and at winding, are followed while the slight spaces from the winding radii are maintained. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention is a multi-axis turret winder equipped with two contact rollers, a contact roller close to the new winding shaft and a contact roller close to the full winding shaft. This is a biaxial contact roller follower that allows high-quality winding without creating defective products during rewinding by providing a small gap between the contact roller and the outer diameter of the winding roll. is there.

  In a multi-axis turret winder that winds the web sent from the previous process, it is necessary to provide a contact roller at a position near the winder shaft so that the web can be wound into an appropriate winding hardness and winding shape without winding the web. Widely known and practiced in the past.

This contact roller has a so-called near-winding method in which a contact roller is wound by contact with the winding shaft due to the physical properties of the winding web, and a so-called near-winding method is used in which a slight gap (gap) is wound when wrinkling occurs. Conventionally, a winder that is wound by pressure contact is often used, and when a contact roller that is pressed against the new winding shaft is wound, a pneumatic cylinder is used along with the change of the winding position by turning the contact roller when rewinding. Many methods are used to follow. In addition, two contact rollers, a contact roller close to the new winding shaft and a contact roller close to the full winding shaft at the time of rewinding, are provided, and these contact rollers are always in contact with the winding shaft during turret rotation, It is also known to enable pressure welding. (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 a web that can be in pressure contact with the take-up shaft. It was difficult to follow a change in position due to turning with a small gap, and the web wound during turning of the turret was lost as a defective product, which was difficult to implement.

  Conventionally, general packaging films are low-cost, and the occurrence of a slight loss is less noticeable as waste for one winding roll, but recent high-performance films are expensive and eliminate waste. There is a growing interest in reducing loss.

JP 2006-8346 A

  The present invention addresses the above-described circumstances, and in particular, presses the two contact rollers necessary for rewinding by providing a small gap on each winding shaft, and finding a means for following the gap while maintaining the gap. The purpose of this invention is to enable high-quality winding of a highly functional web that is inappropriate for winding, and to prevent defective products from being produced during rewinding.

  That is, the present invention suitable for the above object is a multi-axis turret winder having a first contact roller close to the new winding shaft and a second contact roller close to the full winding shaft during rewinding. The first and second contact rollers have a small gap with respect to their respective winding diameters, and are configured to follow each winding diameter while maintaining the small gaps during rewinding. And

  A second aspect of the present invention describes the above feature in more detail. In the multi-shaft turret winder, the first contact roller that is close to the new winding shaft and the second that is close to the full winding shaft during rewinding. The turret is pivoted by a servo motor and each contact roller has a fulcrum at the shaft end that is raised and lowered by a fulcrum raising / lowering servo motor to maintain a small gap with respect to each winding diameter. When the turret is swung at the take-up diameter wound at the take-up position, the displacement due to turning of the take-up shaft and the take-up diameter can be adjusted. On the other hand, changes are detected and calculated as the fulcrum of the first and second contact rollers is moved up and down and rotated, and the position of the contact roller is controlled by the servo motor so that the contact roller always matches the winding diameter. Characterized in that allowed construction to follow while maintaining a minute gap. Of course, a cutting device that cuts the web between the new winding shaft and the full winding shaft adjacent to the winding position in the above-described device is provided so as to be able to move up and down and the cutting edge.

  According to the apparatus of the present invention, the turning of the turret and the position control of the contact roller are always reliably performed with a slight gap with respect to the outer diameter of the winding shaft diameter when turning the turret. The contact roller can follow the position change caused by turning the turret with a small gap, and this makes it possible to wind up a high-functionality web that has not been solved with high quality without causing defects during rewinding. It is possible to achieve this, and it has a remarkable effect in winding up a highly functional web that will be required in the future.

1 is an overall schematic diagram of an apparatus according to the present invention. It is a principal part detail drawing of this invention apparatus. It is a position control block diagram of the 1st and 2nd contact roller. It is operation | movement explanatory drawing which shows the web cutting winding to a new winding axis | shaft. FIG. 5 is an operation explanatory view showing a state of near-winding and full-winding shaft stop with a new winding shaft following the stage shown in FIG. 4. FIG. 6 is an operation explanatory diagram showing a state of continuing the near winding of the new winding shaft following the state of FIG. 5. FIG. 7 is an operation explanatory diagram illustrating a state at the time of turning the turret following the stage illustrated in FIG. 6. It is effect | action explanatory drawing which shows the state of the next stage of the stage shown in FIG. FIG. 9 is an operation explanatory diagram illustrating a state of a next stage following the stage of FIG. 8. FIG. 10 is an operation explanatory diagram illustrating a state of a next stage following the stage of FIG. 9. FIG. 11 is an operation explanatory diagram illustrating a state of a next stage following the stage of FIG. 10. FIG. 12 is an operation explanatory diagram illustrating a state of a next stage following the stage of FIG. 11. FIG. 13 is an operation explanatory diagram illustrating a state of a next stage following the stage of FIG. 12. It is action | operation explanatory drawing which shows the state which a cutting device descend | falls to a new winding axis | shaft at the stage following the stage of FIG. 13, and enters into web cutting rewinding.

  Hereinafter, specific embodiments of the apparatus of the present invention will be described with reference to the accompanying drawings. FIG. 1 schematically shows a basic form of the apparatus of the present invention. In the figure, reference numeral 1 denotes a turret board (hereinafter simply referred to as a turret) of a multi-axis turret winder, which is arranged at a winding position. The web W fed from the previous process through the guide roll 7 to the new winding shaft a is charged by the charging device 8 via the first contact roller 2 to be easily wound and wound up to be fully wound. When the turret 1 turns, the web between the new winding shaft newly arranged at the winding position and the full winding roller R turned through the auxiliary guide roller 6 is lifted and cut with a traveling device. Cutting with the cutting blade 4 of the device 5 is the same as in a conventional turret winder.

  Here, the device of the present invention is provided not only with the first contact roller 2 close to the new winding shaft a as a contact roller but also with the second contact roller 3 close to the full winding shaft b, In addition, the contact rollers 2 and 3 are not pressed against the outer diameter (hereinafter referred to as the winding diameter) of the winding roll wound around the winding shafts a and b, and are wound with a small gap therebetween. Is configured to take.

FIG. 2 shows the details of the first and second contact rollers 2 and 3 forming the main part of the present invention in the above-mentioned apparatus. Both of these contact rollers 2 and 3 are the same as the servo motor provided for the turret turning drive. In addition to the lift servo motors M ₁ and M ₃ , the lift servo motors M ₂ and M ₄ are provided, and the shaft ends of the lift servo motors M ₁ and M ₃ have fulcrums P and P ′, respectively. The fulcrum P, P ′ can be used as a fulcrum to rotate within a required range while maintaining the minute gap between the outer diameter of the winding diameter.

  Note that the first contact roller 2 adjacent to the new winding shaft a is also provided with a pneumatic cylinder 9 for winding shaft contact pressure that maintains a gap during winding and makes contact pressure on the winding shaft. . When each of the first and second contact rollers 2 and 3 has a required winding diameter wound at the winding position and the turret 1 is turned by the servo motor drive, the winding shaft Arithmetic processing is performed according to the change of the position of the device part that changes due to the turning of a and b and the fulcrum of the contact roller 2, and the winding is always performed with a small gap with respect to the outer diameter of the winding diameter. The turret is swiveled and the position of the contact roller is controlled to operate.

  This will be further explained based on the block diagram shown in FIG. 3. When the turret is in a fixed position during the winding operation, the first contact roller is moved to the position calculated from the winding product diameter and the proximity gap (small gap) setting. It is moved by a rotating servo motor. When the rewind signal is input, the turret rotation starts and the winding shaft moves. At this time, the first contact roller ascending / descending position calculated according to the moving distance, the winding diameter, and the proximity gap setting, It is moved to the moving position by the first contact roller raising / lowering motor and rotating motor.

  Next, since the winding shaft also moves by turning the turret in the second contact roller, the second contact roller is moved up and down, calculated according to the moving position, winding diameter, and proximity gap setting. The second contact roller lifting / lowering motor and the rotation motor are moved to the moving position, and a small gap (gap) is provided with respect to the outer diameter of the winding diameter to perform the follow-up winding.

  FIGS. 4 to 14 show an explanation of the state of winding of the contact roller and the winding roll with a small clearance between the contact roller and the winding roll, and the operation of the contact rollers 2 and 3 during winding. FIG. 4 shows a web cutting and winding state in which the full winding roller R is turned by the turret 1 and the new winding shaft a is mounted and the web is cut and wound. FIG. 5 is a stage subsequent to cutting and winding to the new winding shaft shown in FIG. 4 above, and the near winding is performed on the new winding shaft a and the full winding is swung by the turret. A state where the axis b is stopped is shown.

  Thus, from this state, the full winding roller of the full winding shaft is released from the turret 1 by known means, while the near winding on the new winding shaft a is continued, and in the state shown in FIG. The basic action of winding starts. Accordingly, during this period, the first contact roller 2 is disposed with a slight gap with respect to the new winding shaft a, while the second contact roller 3 is held at a position before the operation is started. It is kept in the state shown in. Then, in this state, the first contact roller 2 is disposed close to the web, and the near winding on the new winding shaft a is continued, and the web is wound as is known.

  When the winding progresses and the web wound around the new winding shaft a reaches the full winding roller R state, the turret 1 turns as shown in FIG. 7, and at the same time, the fulcrum P of the first contact roller 2 rises and rotates. It moves to follow the winding on the full-roller roller R.

  Then, when the state shown in FIG. 7 is reached, as shown in FIG. 8, the fulcrum P of the first contact roller 2 is lowered by one step and the near winding is continued, while the fulcrum of the second contact roller 3 is continued. As P ′ starts to descend, as shown in FIG. 9, the first contact roller 2 returns to the original position and rotates, and the second contact roller 3 rotates to approach the full roll roller R web. Thus, the near winding can be continued with a slight gap between the roll winding diameter.

  While the near winding is continued, the fulcrum P ′ of the second contact roller 3 comes close to the full winding roller R by the lowering of the second stage, and the state shown in FIG. 10 is reached. In this state, the turret 1 is further rotated as shown in FIG. 11 and the turret is stopped at a fixed position. During this time, the second contact roller 3 is additionally rotated following the full-roller roller R, and the near Continue winding. Then, the fulcrum of the first contact roller 2 that has returned earlier moves down and stops at the fixed winding position, and the second contact roller 3 continues to be positioned close to the full winding roller, Continue to take.

  Thus, when the above series of operations is finished, the first contact roller 2 approaches the new winding shaft c that has been newly turned as shown in FIG. The second contact roller 3 continues the near-winding of the full-rolling roller R, the cutting device to the new winding shaft c is lowered as shown in FIG. 14, and the web is cut and rewinded. Return to state 4.

  As described above, the apparatus according to the present invention completes a series of operation steps by cutting and rewinding the web by turning the turret 1 and raising and lowering and turning the first and second contact rollers 2 and 3. In the above series of operations, when the turret 1 turns at the winding diameter wound at the winding position, the displacement of the winding shaft and the fulcrum of the first contact roller 2 with respect to the winding diameter are calculated. By doing so, the turning of the turret and the position of the first contact roller are controlled so that the winding is always performed with a small gap with respect to the winding diameter. For this reason, a servo motor is used for turning the turret and raising / lowering and turning the contact roller, thereby detecting the position of the apparatus that changes by this, and calculating and operating in accordance with the change. The position control by the same calculation is the same for the contact roller 3, whereby the position is also controlled for the second contact roller 3, and the follow-up by the winding of the near is performed.

  Thus, the apparatus of the present invention causes the first and second contact rollers 2 and 3 to follow the respective winding diameters while maintaining a minute gap while performing a series of rewinding and inconvenience of winding in pressure contact. Even a highly functional web can be wound with high quality without causing a defective product at the time of rewinding with a small gap in the near winding.

1: Turret board 2: First contact roller 3: Second contact roller 4: Cutting blade 5: Cutting device with lifting and cutting blade traveling device 6: Winding auxiliary guide roller 7: Guide roller 8: Charging device 9: take-up shaft contact-pressure pneumatic cylinder W: web a, b, c: winding shaft P, P ': supporting point M _1, M _3: lifting servo motor M _2, M _4: servo motor rotates

Claims (3)

  In rewinding, in the multi-axis turret winder provided with a first contact roller close to the new winding shaft and a second contact roller close to the full winding shaft, the first and second contact rollers are 2 in a multi-shaft turret winder characterized by having a small gap with respect to each winding diameter, and allowing the winding diameter to follow each winding diameter while maintaining the minute gap during rewinding. A follower for shaft contact rollers.   The multi-shaft turret winder includes a first contact roller that is close to the new winding shaft and a second contact roller that is close to the full winding shaft during rewinding, and the turret is driven to rotate by a servo motor. At the same time, each contact roller has a fulcrum at the shaft end that is raised and lowered by the fulcrum raising / lowering servo motor, and can be rotated within a required range by the turning servo motor while maintaining a small gap with respect to each winding diameter. And when the turret turns at the winding diameter wound at the winding position, the displacement of the winding shaft due to the turning, the fulcrum raising and lowering of the first and second contact rollers with respect to the winding diameter, and Detecting and calculating changes due to rotation, and controlling the position of the contact roller by the servo motor based on the calculation result, so that the contact roller always maintains a minute gap with respect to the winding diameter. Follow-up device of the two-axis contact roller in the multi-axis turret winder which is characterized by being configured to follow.   3. A multi-shaft turret winder according to claim 2, wherein a cutting blade for cutting the web between the new winding shaft and the full winding shaft adjacent to the winding position is capable of moving up and down and cutting blade tip. Contact roller follower.

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