JP2011057336A - Slitter device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a slitter device accurately correcting the position of a sheet material. <P>SOLUTION: The slitter device 100 includes: a travelling control device 4 conveying a sheet material unwound from a roll 2 having a roll core 1 and a sheet material wound around the roll core 1 in an unwinding direction; a first position detection part 21 detecting the position of the sheet material in a direction intersecting with the unwinding direction between upper and lower cutting parts 6, 7 which are provided on the downstream side of the travelling control device 4 in the sheet material unwinding direction and cut the sheet material in the unwinding direction. A control device 5 causes a first movement part to move the roll 2 and the travelling control device 4 so as to adjust the position in a direction intersecting with the unwinding direction of the sheet material based on the detection result of the first position detection part 21. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a slitter device that cuts a sheet material unwound from a sheet roll provided with a roll core and a sheet material wound around the roll core in the unwinding direction.

  The sheet material wound in a roll shape is pulled out, cut in the running direction of the drawn sheet material and cut into a predetermined width (hereinafter referred to as “slit”) to form a sheet material with a predetermined width. In a slitter apparatus, a sheet material wound in a roll shape is pulled out and is laid on a conveyance roller to run the sheet material. In this case, the sheet material travels while changing the position in the width direction (hereinafter referred to as “meandering”). As the cause of the meandering of the sheet material in this way, the roll winding shape is uneven, the thickness distribution of the sheet material is not uniform, and the like.

  Therefore, the slitter device is conventionally provided with a control mechanism that suppresses meandering of the sheet material, and the relative position between the slit portion and the sheet material is controlled by the mechanism. Such a meandering control mechanism detects, for example, a slit positioning reference pattern formed in advance in a sheet material with a sensor such as a photoelectric tube or a CCD camera in the vicinity of the unwinding position of the sheet material, and generates a detected position information signal. Based on this, the position of the unwinding portion of the sheet material is moved so that the position in the width direction of the sheet material becomes an appropriate position. In addition, a method of controlling the position of the sheet material in the width direction by detecting the edge position of the drawn sheet material is also performed.

  As such a sheet material position correction technique, Patent Document 1 detects a position variation in the width direction of the sheet material in the vicinity of the slit part, and based on the detection result, the position detection part, the slit part, and the slit A slitter device for moving a small winding portion that winds up a sheet material that has been wound is described. Further, in Patent Document 2, the position of the sheet material is corrected by moving the position of the sheet roll around which the sheet material is wound based on the position information in the width direction of the sheet material detected in the vicinity of the slit portion. A slitting device is described. In the slitter device described in Patent Document 1, the position correction processing is controlled intermittently by stopping the next position correction processing of the sheet material until the sheet material unwound from the sheet roll reaches the slit portion. Thus, the position correction can be controlled without being affected by the unwinding speed of the sheet material.

JP 2002-226102 A (published on August 14, 2002) Japanese Patent Laid-Open No. 4-16452 (published on January 21, 1992)

  In the conventional slitter device that detects the position in the width direction of the sheet material in the vicinity of the unwinding position of the sheet material, the transport roller provided downstream from the unwinding unit and the travel control for controlling the travel of the sheet material It is difficult to correct the positional deviation of the sheet material that occurs until it passes through the part or the like and reaches the slit part. In particular, since the travel control unit controls the travel of the sheet material by sandwiching the sheet material up and down, when the position in the width direction of the sheet material is corrected upstream of the travel control unit, the travel control unit The downstream sheet material receives a tensile force in the direction opposite to the correction direction. Thereby, there exists a problem that the relative position of a slit part and a sheet | seat material varies.

  Further, in the slitter device described in Patent Document 1, the position of the sheet material is corrected by moving the slit portion in the width direction of the sheet material. It is easy to get out of. If the cutting portion is zigzag like a saw blade, the sheet material is likely to be torn due to the tension necessary for conveying the sheet material. Furthermore, it is difficult to completely remove burrs generated in the cut portion by a cleaning means such as suction or adhesion, and the burrs are removed from the sheet material during the process and become foreign matters.

  Also in the slitter device described in Patent Document 2, in order to correct the position of the sheet material by the movement of the sheet roll upstream from the travel control unit, the tensile force in the direction opposite to the correction direction by the sheet material downstream from the travel control unit. Receive power. Furthermore, since position correction is controlled intermittently, it is difficult to correct with high accuracy. Further, since the amount of positional deviation of the sheet material is not necessarily the same between the vicinity of the sheet roll and the vicinity of the slitter, it is difficult to accurately correct the positional deviation.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a slitter apparatus capable of correcting the position of a sheet material with higher accuracy.

  In order to solve the above-mentioned problem, the slitter device according to the present invention is configured so that the sheet material unwound from a sheet roll provided with a roll core and a sheet material wound around the roll core in the unwinding direction. A slitter device for cutting, wherein the sheet material unwound from the sheet roll is provided downstream of the travel control means in the unwinding direction of the sheet material and travel control means for conveying the sheet material in the unwinding direction. Cutting means for cutting the sheet material in the unwinding direction, and first position detection means for detecting the position of the sheet material in the direction intersecting the unwinding direction between the travel control means and the cutting means. And first position adjusting means for moving positions of the sheet roll and the traveling control means in a direction intersecting the unwinding direction, Control means for moving the sheet roll and the traveling control means to the first position adjusting means so as to adjust the position in the direction intersecting the unwinding direction based on the detection result of the one position detecting means. It is characterized by having.

  According to the above configuration, the first position detection unit is disposed between the travel control unit and the cutting unit, and the sheet roll and the travel are performed based on the position in the width direction of the sheet material detected by the first position detection unit. Since the control means is moved, the position of the sheet material in the width direction relative to the cutting means can be controlled with high accuracy. In addition, since the position of the sheet material in the width direction is corrected by fixing the cutting means and moving the sheet material in the width direction, the sheet material advances with respect to the cutting edge of the cutting means, and the cutting part is sawtooth-shaped. It is possible to suppress the occurrence of burrs.

  The slitter device according to the present invention further includes first support means for supporting the sheet roll and the travel control means, and the first position adjusting means is a direction intersecting the unwinding direction with the first support means. It is preferable to move the sheet roll and the traveling control means by moving the sheet roll.

  Thereby, since the sheet roll and the travel control means can be moved together by moving the first support means, a meandering factor is generated in the sheet material with a relatively simple apparatus configuration. The position in the width direction of the sheet material can be corrected without any problem.

  The slitter device according to the present invention further includes second position detecting means for detecting a position of the sheet material in a direction intersecting the unwinding direction between the sheet roll and the traveling control means, The position adjustment means includes a first movement unit that moves the position of the travel control means in a direction that intersects the unwinding direction, and a second movement that moves the position of the sheet roll in a direction that intersects the unwinding direction. And the control means adjusts the position of the sheet material in a direction intersecting the unwinding direction based on the detection result of the first position detection means. The travel control unit is moved by the first moving unit, and based on the detection result of the second position detection unit, the upper direction in the direction intersecting the unwinding direction is To adjust the position of the sheet material, to move the sheet roll is preferably by the second moving portion of the first position adjustment means.

  According to the above configuration, the width direction position of the sheet material upstream of the travel control unit is detected by the second position detection unit, and based on the detection result, the second moving unit of the first position adjustment unit detects the position of the sheet roll. Therefore, the position of the sheet material that enters the travel control means can be kept constant. Further, the width direction position of the sheet material between the travel control means and the cutting means is detected by the first position detection means, and based on the detection result, the first moving part of the first position adjustment means detects the position of the travel control means. Move.

  Thus, the position of the sheet material that enters the travel control means and the position in the width direction of the sheet material with respect to the cutting means after passing through the travel control means can be individually controlled. Therefore, after reducing the meandering of the sheet material due to uneven winding of the roll sheet or uneven thickness distribution of the sheet material, the width direction position of the sheet material relative to the cutting means is reduced. Since it can correct | amend, it can slit in a wider range and with high precision rather than the conventional slitter apparatus.

  The slitter device according to the present invention further includes second support means for supporting the sheet roll, and the second moving portion of the first position adjusting means crosses the second support means in the unwinding direction. It is preferable to move the sheet roll by moving in the direction.

  As a result, the travel means can be moved by moving the first support means, and the sheet roll can be moved by moving the second support means, so that the sheet material does not cause meandering. The position in the width direction of the sheet material can be corrected with higher accuracy.

  The slitter device according to the present invention is a slitter device that cuts the sheet material unwound from a sheet roll provided with a roll core and a sheet material wound around the roll core in the unwinding direction, A traveling control means for conveying the sheet material unwound from the sheet roll in the unwinding direction, and provided downstream of the traveling control means in the unwinding direction of the sheet material, unwinds the sheet material. Cutting means for cutting in the direction, first position detecting means for detecting the position of the sheet material in the direction intersecting the unwinding direction between the travel control means and the cutting means, the sheet roll, and the travel A first position adjusting means for moving a position of the control means in a direction crossing the unwinding direction, and a detection result of the first position detecting means; Based on the above, the first position adjusting means includes a control means for moving the sheet roll and the travel control means so as to adjust the position in the direction crossing the unwinding direction. Position correction in the direction intersecting the material unwinding direction can be performed with high accuracy.

(A) And (b) is the top view and sectional drawing of the slitter apparatus which concern on one Embodiment of this invention. (A) And (b) is the top view and sectional drawing of the slitter apparatus which concerns on other embodiment of this invention. (A)-(c) is a top view explaining the cutting process of the sheet material by the slitter apparatus which concerns on one Embodiment of this invention. (A)-(c) is a top view explaining the cutting process of the sheet material by the conventional slitter apparatus.

(First embodiment)
A slitter device 100 according to a first embodiment of the present invention will be described below with reference to FIGS. 1 (a) and 1 (b). 1A is a top view of the slitter apparatus 100, and FIG. 1B is a cross-sectional view thereof. As shown to (a) and (b) in FIG. 1, the slitter apparatus 100 is an apparatus which slits the sheet material unwound from the roll (sheet roll) 2 by which a sheet material is wound around the roll core 1. The travel control unit (travel control unit) 4, the control device (control unit) 5, the upper cutting unit (cutting unit) 6, the lower cutting unit (cutting unit) 7, the first position detection unit (first position detection) Means) 21 and a first moving part (first position adjusting means) 31. The slitter device 100 may include a first transport roller 11, a second transport roller 12, and a first support member (first support means) 101. In the slitter apparatus 100, the roll 2 and the first transport roller 11 constitute the unwinding part 3, and the upper cutting part 6 and the lower cutting part 7 constitute a slit part for cutting the sheet material. Further, the roll 2, the first transport roller 11, the second transport roller 12, and the travel control unit 4 are supported by the first support member 101.

  The slitter device 100 conveys the sheet material unwound by rotating the roll 2 to the travel control unit 4 via the first conveyance roller 11 and the second conveyance roller 12. Then, the conveyed sheet material is conveyed in the sheet material conveyance direction by an upper cutting unit 6 and a lower cutting unit 7 (hereinafter also referred to as “slit unit” in combination) positioned downstream of the travel control unit. Then, it is cut with a predetermined width. The first position detection unit 21 is located between the travel control unit 4 and the slit unit, and detects the position of the sheet material in the width direction (direction intersecting the unwinding direction) at the position.

  The first position detection unit 21 transmits a position information signal representing the detected position information in the width direction of the sheet material to the control device 5, and the control device 5 determines the width direction of the sheet material based on the received position information signal. The first moving unit 31 is instructed to correct the position. The first moving unit 31 moves the first support member 101 based on an instruction from the control device 5, thereby correcting the positional deviation of the sheet material in the width direction.

  The roll 2 is attached to a support shaft fixed to the first support member 101, and rolls the sheet material by rotating the support shaft. A predetermined tension is applied to the unwound sheet material, and a braking force is applied to the rotation of the support shaft of the roll 2 in the direction opposite to the sheet material conveyance direction. As a result, the sheet material can contact the first conveyance roller 11 and the second conveyance roller 12 and apply an appropriate frictional force to the sheet material. Therefore, the first conveyance roller is used to correct the position of the sheet material in the width direction. When 11 and the second transport roller 12 are moved, the sheet material is moved by the first transport roller 11 and the second transport roller 12. As a result, the meandering control of the sheet material can be stably performed.

  The first transport roller 11 and the second transport roller 12 are rotatably provided by a support shaft fixed to the first support member 101. The first transport roller 11 and the second transport roller 12 are for restricting the travel line of the sheet material upstream of the travel control unit 4 from varying even if the winding diameter of the roll 2 varies.

  The traveling control unit 4 is fixed to the first support member 101 and is a drive source for conveying the sheet material. The traveling control unit 4 can be configured to convey the sheet material, for example, by sandwiching the sheet material between the conveyance roller and the pinch roller and the pinch roller rotationally driving.

  The first support member 101 that supports the roll 2, the first transport roller 11, the second transport roller 12, and the travel control unit 4 can be moved in the width direction of the sheet material by the first moving unit 31. For example, the first moving unit 31 enables the movement of the first support member 101 by installing the first support member 101 on a linear guide and moving and stopping the first support member 101 in the width direction of the sheet material by an actuator. . As such an actuator, a linear motion motor that can be controlled by a servo motor, a stepping motor, or the like is preferable, but the actuator is not limited to this, and a moving amount necessary for controlling the meandering of the sheet material can be given. Anything is acceptable.

  The first position detection unit 21 detects the position in the width direction until the sheet material that has passed through the travel control unit 4 reaches the slit portion. As the first position detection unit 21, for example, a sensor such as a photoelectric tube or a CCD camera can be used. As a sheet material position detection method by the first position detector 21, for example, a method of recognizing the position of the sheet material in the width direction by detecting the edge position of the slit positioning reference pattern 8 formed in advance on the sheet material is raised. It is done. The slit positioning reference pattern 8 is preferably formed by printing simultaneously with the same printing mask as the product pattern to be formed on the sheet material, or is preferably shared with the product pattern. By forming the slit positioning reference pattern 8 in this way, the relative position between the slit positioning reference pattern 8 and the product pattern can be accurately maintained. Thereby, the position in the width direction of the sheet material can be detected with high accuracy using the slit positioning reference pattern 8 as a reference. The first position detection unit 21 transmits a position information signal indicating the detected position in the width direction of the sheet material to the control device 5.

  Based on the received position information signal, the control device 5 calculates the movement amount of the first support member for appropriately correcting the position in the width direction of the sheet material, and the movement amount signal representing the movement amount is first moved. It transmits to the part 31. The first moving unit 31 moves the first support member 101 based on the received movement amount signal. As described above, the position in the width direction of the sheet material is corrected based on the position in the width direction of the sheet material detected immediately after the sheet material passes downstream of the travel control unit 4.

  The upper cutting part 6 and the lower cutting part 7 (slit part) cut | disconnect (slit) the sheet material which passed the traveling control part 4 by the predetermined dimension width along the conveyance direction. As the upper cutting part 6 and the lower cutting part 7, for example, a combination of a rotating round blade having a dish-like cross section (as the upper cutting part 6) and a rotating round blade having a rectangular cross section (as the lower cutting part 7) is suitably used. Can be used. In addition, the upper cutting part 6 and the lower cutting part 7 can be configured to slit the sheet material by aerial cutting using a cutter blade, push-cutting with a rotating body whose blade edge shape is processed, or the like.

  As described above, there is no factor causing the sheet material to meander between the travel control unit 4 and the slit portion. Therefore, based on the position in the width direction of the sheet material between the travel control unit 4 and the slit portion, the travel control unit 4 and a member that can affect the position in the width direction of the sheet material located upstream thereof. By moving and correcting the positional deviation of the sheet material, the position in the width direction of the sheet material with respect to the slit portion can be controlled with high accuracy. That is, all the members that affect the meandering of the sheet material upstream from the detection position of the first position detection unit 21 in the vicinity of the slit portion are moved to correct the position in the width direction of the sheet material. No positional deviation occurs up to the part, and the position in the width direction of the sheet material can be controlled with high accuracy.

  Next, the slit process of the sheet material by the slitter device 100 will be described with reference to FIGS. 3 (a) to 3 (c) and FIGS. 4 (a) to 4 (c). 3A to 3C are top views illustrating sheet material cutting processing by the slitter device according to the embodiment of the present invention, and FIGS. 4A to 4C are conventional slitter devices. It is a top view explaining the cutting process of the sheet material by. In the slitter device 100, the sheet material unwound from the roll 2 is conveyed to the slit portion via the first conveyance roller 11 and the second conveyance roller 12 by the driving rotation of the pinch roller of the travel control unit 4. To do. The sheet material conveyed to the slit part is slit by the upper cutting part 6 and the lower cutting part 7. At this time, if the rolled shape of the rolls 2 is uneven, variations occur in the position in the width direction of the sheet material entering the travel control unit 4. If the thickness of the sheet material is not uniform, the sheet material meanders in the process of passing through the first conveyance roller 11 and the second conveyance roller 12.

  Further, as shown in FIGS. 3A to 3C, the slit positioning reference pattern 8 may be displaced due to the displacement of the print mask between the product patterning regions. Even in such a case, the slitter apparatus 100 detects the edge of the slit positioning reference pattern 8 of the sheet material that has passed the travel control unit 4 in the first position detection unit 21 that is in the immediate vicinity of the slit unit, and this The position of the sheet material in the width direction is corrected by moving the member upstream of the first position detection unit 21 based on the position of the sheet material so that the position of the sheet material in the width direction matches the slit portion. Can be transported. Thereby, it is possible to slit the predetermined position of the sheet material with high accuracy on the basis of the product pattern.

  On the other hand, as shown in FIGS. 4A to 4C, in the conventional slitter apparatus 400, the slit positioning reference formed on the sheet material drawn from the roll 402 formed by winding the sheet material on the roll core 401. When the pattern 408 is displaced, the position of the sheet material in the width direction with respect to the upper cut portion 406 and the lower cut portion 407 cannot be corrected with high accuracy. That is, in the conventional slitter device 400, the position detection unit 421 is provided on the transport roller 411 located further upstream away from the upper cutting unit 406 and the lower cutting unit 407, and the position of the sheet material at this position Based on the above, the position deviation of the sheet material is corrected by moving the position of the member upstream of the travel control unit 404.

  Accordingly, the positional deviation occurs due to the influence of the transport roller 412 or the travel control unit 404 until the sheet material after the position correction reaches the upper cutting unit 406 and the lower cutting unit 407. Further, as shown in FIG. 4, when the position in the width direction of the sheet material is corrected upstream of the traveling control unit 404, it is affected by the correction downstream of the traveling control unit 404 and deviates from the appropriate width direction position of the sheet material. Therefore, the predetermined position of the sheet material cannot be slit with high accuracy based on the product pattern.

  Thus, according to the slitter device 100, the position correction of the sheet material can be performed with higher accuracy than the conventional slitter device 400.

(Second Embodiment)
A slitter device 200 according to a second embodiment of the present invention will be described below with reference to FIGS. 2 (a) and 2 (b). 2A is a top view of the slitter device 200, and FIG. 2B is a cross-sectional view thereof. In the slitter device 200, a second position detection unit (second position detection unit) 22 is provided between the first conveyance roller 11 and the second conveyance roller 12, and a second support member (supporting the unwinding unit 3) ( Second support means) 102 and a second moving part 32 for moving the first support member 102, and the first support member 101 supports only the second transport roller 12 and the travel control part 4 in the first embodiment. This is different from the slitter apparatus 100 of FIG. Therefore, in the present embodiment, only points different from the first embodiment will be described, and other descriptions will be omitted.

  As shown in FIGS. 2A and 2B, the slitter device 200 includes a second position detection unit 22 between the first transport roller 11 and the second transport roller 12. Further, a second moving unit 32 that can move in the width direction of the sheet material with respect to the first moving unit 31 is provided on the first moving unit 31. The first moving unit 31 moves the first support member 101 that supports the second conveying roller 12 and the travel control unit 4 in the width direction of the sheet material, and the second moving unit 32 includes the roll 2 and the first conveying roller. The 2nd support member 102 which supports the unwinding part 3 which consists of 11 is moved to the width direction of a sheet | seat material.

  The second position detection unit 22 detects the edge position of the slit positioning reference pattern 8 formed on the sheet material, and for example, a photoelectric tube, an ultrasonic sensor, a CCD camera, or the like can be used. The second position detection unit 22 transmits an edge position information signal representing the detected edge position to the control device 5. Based on the received edge position information signal, the control device 5 calculates a movement amount that makes the edge position of the sheet material appropriate, and transmits a movement amount signal representing the movement amount to the second moving unit 32. The second moving unit 32 moves the second support member 102 based on the received movement amount signal. As a result, the edge position of the sheet material entering the travel control unit 4 is controlled to be constant.

  Then, the first position detection unit 21 detects the position in the width direction of the sheet material that has passed through the travel control unit 4, and the control device 5 detects the first support member 101 on the first moving unit 31 based on the detection result. Move. That is, the position in the width direction of the sheet material is detected at two locations upstream and downstream of the travel control unit 4, and the unwinding unit 3, the second transport roller 12, and the travel control unit 4 are moved based on the detected position.

  With this configuration, the width of the sheet material caused by the meandering of the sheet material and the travel control unit 4 when the roll winding edge is uneven or the thickness of the sheet material is uneven Since the positional deviation can be individually corrected, the predetermined position of the sheet material and the slit portion can be matched with higher accuracy.

  The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope shown in the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. Is also included in the technical scope of the present invention.

  Since the present invention can accurately correct the position in the width direction of the sheet material with respect to the slit portion, the slitter device unwinds the roll-shaped sheet material and cuts the predetermined position in the width direction of the sheet material. Available. In particular, it can be suitably used for a slitter apparatus that is required to accurately cut a predetermined position in the width direction of a sheet material on which wiring is patterned, and to suppress generation of burrs at a cut portion.

1 roll core 2 roll (sheet roll)
3 Unwinding section 4 Travel control section (travel control means)
5 Control device (control means)
6 Upper cutting part (cutting means)
7 Lower cutting part (cutting means)
8 Slit positioning reference pattern 11 First transport roller 12 Second transport roller 21 First position detection unit (first position detection means)
22 2nd position detection part (2nd position detection means)
31 1st moving part (1st position adjustment means)
32 2nd moving part 101 1st support member (1st support means)
102 2nd support member (2nd support means)

Claims (4)

A slitter device for cutting the sheet material unwound from a sheet roll provided with a roll core and a sheet material wound around the roll core in the unwinding direction,
Travel control means for conveying the sheet material unwound from the sheet roll in the unwinding direction;
Cutting means provided downstream of the travel control means in the unwinding direction of the sheet material, and cutting the sheet material in the unwinding direction;
A first position detecting means for detecting a position of the sheet material in a direction intersecting the unwinding direction between the traveling control means and the cutting means;
First position adjusting means for moving positions of the sheet roll and the traveling control means in a direction intersecting the unwinding direction;
Control means for moving the sheet roll and the travel control means to the first position adjusting means so as to adjust the position in the direction crossing the unwinding direction based on the detection result of the first position detecting means; A slitter device comprising: A first support means for supporting the sheet roll and the travel control means;
The said 1st position adjustment means moves the said sheet | seat roll and the said travel control means by moving the said 1st support means in the direction which cross | intersects the said unwinding direction. Slitter device. A second position detecting means for detecting a position of the sheet material in a direction intersecting the unwinding direction between the sheet roll and the traveling control means;
The first position adjusting unit moves a position of the travel control unit in a direction intersecting the unwinding direction, and a first moving unit that moves the position of the sheet control unit in a direction intersecting the unwinding direction. A second moving part,
The control means is based on the detection result of the first position detection means by the first moving unit of the first position adjustment means so as to adjust the position of the sheet material in the direction intersecting the unwinding direction. The second position of the first position adjusting means is adjusted so as to move the travel control means and adjust the position of the sheet material in the direction intersecting the unwinding direction based on the detection result of the second position detecting means. The slitter device according to claim 1, wherein the sheet roll is moved by a moving unit. A second support means for supporting the sheet roll;
The said 2nd moving part of the said 1st position adjustment means moves the said sheet | seat roll by moving the said 2nd support means in the direction which cross | intersects the said unwinding direction. The slitter device described.

Images