JP5158984B2 - Winding device - Google Patents

Description

  The present invention relates to a winding device for winding a web material on a winding roll.

  For example, in the winding apparatus of Patent Document 1, in a slitter that slits a web material such as paper or plastic film into a plurality of strips, the web material is wound around a winding roll after slitting.

  Furthermore, in the apparatus of Patent Document 1, when the web material is wound, the touch roller comes into contact with the winding roll. After the winding of the web material is completed, the press plate is engaged with the web material at a position upstream from the contact point between the touch roller and the take-up roll, the web material is pressed against the touch roller, and the web is pressed by the press plate and the touch roller. The material is nipped. Thereafter, the web material is cross-cut by the cutting blade at a position downstream of the contact point between the touch roller and the winding roll. Thereafter, the winding core moves toward the web material and the touch roller, engages with the web material and the touch roller, and the web material is wound around the winding core.

  By the way, the slitter is generally provided with winding devices on both front and rear sides thereof, and after the slitting, the web material is distributed to each winding device. The same applies to the apparatus disclosed in Patent Document 1. In each winding device, the web material passes through the touch roller and is guided to the winding roller. In one winding device, when the web material passes through the touch roller, the position is on the upper side of the touch roller. Therefore, if the web material is nipped upstream of the contact point between the touch roller and the winding roll, the winding core can be engaged with the web material and the touch roller after the web material is cross-cut. Is a winding device.

  In the other winding device, when the web material passes through the touch roller, its position is below the touch roller. Below the touch roller, the web material passes through the touch roller and is guided to the take-up roller. Therefore, especially in the case of soft web material, even if the web material is nipped at a position upstream from the contact point between the touch roller and the take-up roll, the web material is cross-cut at a position downstream from the contact point between the touch roller and the take-up roll. Sometimes, the end may hang down under its own weight. For this reason, when the winding core is subsequently engaged with the web material and the touch roller, it is not always possible to accurately engage the winding core. And unless it can be made to engage correctly, web material cannot be wound around a winding core.

  Therefore, the present invention has been made for the purpose of preventing the end of the web material from hanging down by its own weight after the web material is cross-cut in the winding device for winding the web material on the winding roll in contact with the touch roller. Is.

Japanese Patent No. 3767488

  According to this invention, after the winding of the web material is completed, the cross cutter moves toward the web material and moves forward by the drive mechanism between the touch roller and the winding roll. The cross cutter has a body. Furthermore, an engaging part is formed in the front edge part of a body, and when a cross cutter moves toward web material, an engaging part engages with web material. Furthermore, when the nip part is formed in the middle part of the body and the cross cutter moves toward the web material, the nip part is engaged with the web material at a position upstream from the contact point between the touch roller and the take-up roll, and touch. The web material is pressed against the roller, and the web material is nipped by the nip portion and the touch roller. Further, a cutting blade is provided on the cross cutter, is disposed between the front edge portion and the middle portion, protrudes from the body, and after the nip of the web material, the web is cut by the cutting blade at a position downstream of the contact point between the touch roller and the take-up roll. The material is cross-cut and its ends are formed. After that, the presser plate moves toward the end, the presser plate engages with the end at a position downstream of the contact point between the touch roller and the take-up roll, the end is pressed against the touch roller, and the end is pressed by the presser plate and the touch roller. Is nipped.

  In the preferred embodiment, after the end nip, the drive mechanism retracts the cross cutter and the winding core engages the web material and the touch roller.

  Furthermore, a transition part is formed between the front edge part and the middle abdomen. The transition portion engages with the web material, and the web material is cut in this state.

  The engaging portion is composed of an outwardly curved portion of the body. The nip part consists of an outwardly bent part of the body. The transition part consists of a flat inclined part of the body.

  Further, after the web material is cross-cut, the cross cutter further advances, thereby shortening the length between the nip position and the end of the web material due to the outward bending portion. Thereafter, the end is nipped by the presser plate and the touch roller.

It is explanatory drawing which shows the Example of this invention. (A) is explanatory drawing which shows the state which moved the winding roll of one winding apparatus of FIG. 1, (B) is explanatory drawing which shows the next process of FIG. 2 (A). (A) is explanatory drawing which shows the next process of FIG. 2 (B), (B) is explanatory drawing which shows the next process of FIG. 3 (A). (A) is explanatory drawing which shows the next process of FIG. 3 (B), (B) is explanatory drawing which shows the next process of FIG. 4 (A). (A) is explanatory drawing which shows the state which moved the winding roll of the other winding apparatus of FIG. 1, (B) is explanatory drawing which shows the next process of FIG. 5 (A). (A) is explanatory drawing which shows the next process of FIG. 5 (B), (B) is explanatory drawing which shows the next process of FIG. 6 (A). (A) is explanatory drawing which shows the next process of FIG. 6 (B), (B) is explanatory drawing which shows the next process of FIG. 7 (A). FIG. 7 is an enlarged view of the cross cutter and the presser plate of FIG. It is explanatory drawing which shows a notch and a part of pressing plate seen from the arrow line A of FIG.

  Examples of the present invention will be described below.

  FIG. 1 shows a winding device according to the present invention. This device is a slitter winding device, and the winding devices 1A and 1B are provided on both front and rear sides of the slitter as in the case of Patent Document 1. Then, the web material 2 such as paper or plastic film passes through the slit blade 3 and is slit into a plurality of strips. After the slitting, the web material 2 is distributed to the respective winding devices 1A and 1B. Further, in each of the winding devices 1 </ b> A and 1 </ b> B, the web material 2 passes through the guide roller 4 and the touch roller 5, is guided to the winding roll 6, and the web material 2 is wound on the winding roll 6. In this embodiment, the web material 2 is wound around the winding core 7, thereby forming the winding roll 6, and the web material 2 is wound around the winding roll 6.

  Further, when the touch roller 5 is supported by the lever 8 and a drive mechanism 9 such as a cylinder acts on the lever 8 and the web material 2 is taken up, the touch roller 5 comes into contact with the take-up roll 6 and is in contact therewith. Pressure is generated. Further, the take-up core 7 and the take-up roll 6 are supported by the take-up arm 10, and the drive mechanism 11 is connected to the take-up arm 10. As the winding diameter of the take-up roll 6 increases, the drive mechanism 11 The winding arm 10 is driven, the winding arm 10 moves in the horizontal direction, and retracts from the touch roller 5. This allows an increase in winding diameter.

  Furthermore, in one winding device 1 </ b> A, when the web material 2 passes through the touch roller 5, the position is on the upper side of the touch roller 5. On the upper side of the touch roller 5, the web material 2 passes through the touch roller 5 and is guided to the winding roll 6. On the other hand, when the web material 2 passes through the touch roller 5 in the other winding device 1B, the position is the lower side of the touch roller 5. Under the touch roller 5, the web material 2 passes through the touch roller 5 and is guided to the winding roll 6. This is the same as that of Patent Document 1.

  Further, in each of the winding devices 1A and 1B, a cross cutter 12 and a pressing plate 13 are provided.

  Further, a driving mechanism 14 such as a cylinder is connected to the cross cutter 12, and in one winding device 1A, the cross cutter 12 is disposed above the winding roll 6 and the touch roller 5, and will be described later. After the winding of the material 2 is completed, the cross cutter 12 is driven by the driving mechanism 14, and the cross cutter 12 moves toward the web material 2 between the touch roller 5 and the winding roll 6, descends, and advances. On the other hand, in the other winding device 1B, the cross cutter 12 is disposed below the winding roll 6 and the touch roller 5, and after the winding of the web material 2 is completed, the crossing is performed by the drive mechanism 14 as described later. The cutter 12 is driven, and the cross cutter 12 moves toward the web material 2 between the touch roller 5 and the take-up roll 6, rises, and advances.

  Further, the presser plate 13 is supported by the carriage 15, and a drive mechanism 16 such as a cylinder is connected to the carriage 15, and the presser plate 13 is disposed below the take-up roll 6 and the touch roller 5 in one winding device 1 </ b> A. The holding plate 13 can be moved, raised and advanced by the drive mechanism 16. On the other hand, in the other winding device 1B, the pressing plate 13 is disposed above the winding roll 6 and the touch roller 5, and the pressing plate 13 can be moved, lowered, and advanced by the drive mechanism 16. .

  Further, as shown in FIG. 2A, in one winding device 1 </ b> A, the cross cutter 12 is facing downward and has a body 17. On the other hand, as shown in FIG. 5A, in the other winding device 1B, the cross cutter 12 is upward and has a body 17.

  Further, the engaging portion 18 is formed at the front edge portion of the body 17 and the nip portion 19 is formed at the middle portion of the body 17, and when the cross cutter 12 moves toward the web material 2 as will be described later. The engaging portion 18 and the nip portion 19 can be engaged with the web material 2.

  Further, a cutting blade 20 is provided on the cross cutter 12, is disposed between the front edge portion and the middle abdomen, and protrudes from the body 17. As will be described later, the web material 2 is cross-cut by the cutting blade 20, Can be formed. For example, the driving mechanism is provided in the cross cutter 12 and connected to the cutting blade 20, and the cutting blade 20 travels by the driving mechanism in the width direction of the web material 2, and the web material 2 is cross-cut.

  Furthermore, in this embodiment, the transition part 21 is formed between the front edge part and the middle abdomen. Then, the transition portion 21 is engaged with the web material 2. Details thereof will also be described later. The engaging portion 18 is composed of an outwardly curved portion of the body 17 and extends in the width direction of the web material 2. The nip portion 19 is formed of an outwardly bent portion of the body 17 and extends in the width direction of the web material 2. The transition part 21 includes a flat inclined part of the body 17.

  Furthermore, as described above, the web material 2 is cross-cut by the cutting blade 20 and the end thereof is formed. However, the press plate 13 is for engaging the end, and in the width direction of the web material 2. Extend. Further, in this embodiment, as shown in FIG. 8 and FIG. 9, the presser plate 13 having a comb-shaped tip is used, and an opening 22 a is formed in the transition portion 21 of the body 17. A large number of cutouts 22b are formed along the edge, and the end of the presser plate 13 can be passed through the opening 22a and can be passed through the cutout 22b as will be described later. Further, on the carriage 15, the presser plate 13 is attached to the pin 23, and a drive mechanism such as a cylinder is connected to the presser plate 13. The drive mechanism is applied to the presser plate 13, and the presser plate 13 is moved around the pin 23. And can be moved toward the end and engaged with the end. Details thereof will also be described later.

  Then, in each of the winding devices 1A and 1B, after the winding of the web material 2 is completed, first, the winding arm 10 is driven by the drive mechanism 11, the winding arm 10 is moved in the horizontal direction, and the winding roll 6 is touched. Retreat from roller 5 and leave. Accordingly, the drive mechanism 9 acts on the lever 8, the lever 8 slightly swings, and the touch roller 5 moves toward the take-up roll 6. FIG. 2 (A) and FIG. 5 (A) show the state.

  Thereafter, as shown in FIGS. 2B and 5B, the cross cutter 12 is driven by the drive mechanism 14, and the cross cutter 12 moves toward the web material 2 between the touch roller 5 and the take-up roll 6. Move and move forward. Therefore, the engaging portion 18 engages with the web material 2. Further, the nip portion 19 is engaged with the web material 2 at a position upstream of the contact point between the touch roller 5 and the take-up roll 6, and the web material 2 is pressed against the touch roller 5. Accordingly, the touch roller 5 is pushed back to the opposite side of the take-up roll 6 by the nip portion 19, the lever 8 swings and is absorbed by the drive mechanism 9, and the web material 2 is absorbed by the nip portion 19 and the touch roller 5. Nipped. Thereafter, the web material 2 is cross-cut by the cutting blade 20 at a position downstream of the contact point between the touch roller 5 and the take-up roll 6 to form its end. Further, when the cross cut is performed, the transition portion 21 is engaged with the web material 2, and the web material 2 is cross cut in this state.

  Thereafter, the take-up roll 6 is removed from the take-up arm 10 and taken out, for example, on a cart or a belt conveyor. Thereafter, the winding core 7 is supported by the winding arm 10.

  Further, after the web material 2 is cross-cut, as shown in FIGS. 3 (A) and 6 (A), the pressing plate 13 is moved and moved forward by the drive mechanism 16, and the pressing plate 13 is opened in the opening 22a of the transition portion 21. And is inserted into the body 17.

  Further, in particular, in the winding device 1B of FIG. 6A, after the web material 2 is cross-cut, the drive mechanism 14 acts on the cross cutter 12, the cross cutter 12 further advances, and the nip portion 19 becomes the web material 2. And it moves along the touch roller 5, thereby shortening the length between the nip position and the end of the web material 2 by the nip portion 19. Therefore, the end does not hang down by its own weight. Thereafter, as shown in FIGS. 3 (B) and 6 (B), the drive mechanism acts on the presser plate 13 on the carriage 15, and the presser plate 13 swings around the pin 23 so that the notch 22b is moved. The press plate 13 is engaged with the end at a position downstream of the contact point between the touch roller 5 and the take-up roll 6, the end is pressed against the touch roller 5, and the press plate 13 and the touch roller 5 nips the end.

  Thereafter, as shown in FIGS. 4A and 7A, the drive mechanism 14 drives the cross cutter 12 to move backward. Further, for example, a double-sided adhesive tape is affixed to the winding core 7, and after the cross cutter 12 is retracted, the winding arm 10 is moved by the drive mechanism 11, and the winding core 7 moves forward toward the touch roller 5, The winding core 7 is engaged with and pressed against the web material 2 and the touch roller 5. Therefore, the winding core 7 and the web material 2 adhere to each other by the double-sided adhesive tape. Alternatively, instead of the double-sided adhesive tape, the winding core 7 may be glued, and the winding core 7 and the web material 2 may be attached by glue. Alternatively, the winding core 7 and the web material 2 may be attached by other attaching means. Thereafter, as shown in FIGS. 4B and 7B, the presser plate 13 is moved by the drive mechanism 16 and moved backward. At this time, the retracting direction of the presser plate 13 is a direction in which the web material 2 is not slackened. Thereafter, the web material 2 is wound around the winding core 7, thereby forming the winding roll 6, and the web material 2 is wound around the winding roll 6.

  Therefore, in the case of this apparatus, after the web material 2 is cross-cut, the end is nipped by the pressing plate 13 and the touch roller 5 at a position downstream of the contact point between the touch roller 5 and the take-up roll 6. Then, after the terminal nip, the cross cutter 12 is retracted by the drive mechanism 14, and the winding core 7 is engaged with the web material 2 and the touch roller 5. Therefore, in the winding device 1B of FIG. 7 as well as the winding device 1A of FIG. 4, the end does not hang down by its own weight after the cross cutter 12 is retracted. The winding core 7 can be engaged with the web material 2 and the touch roller 5 by accurately holding the end, and the winding core 7 and the web material 2 can be accurately attached. Thereafter, the web material 2 can be wound around the winding core 7, and the web material 2 can be wound around the winding roll 6.

  Further, as described above, the transition portion 21 is engaged with the web material 2 and the web material 2 is cross-cut in this state. Therefore, after the cross cut, the web material 2 is supported by the transition portion 21, and the presser plate 13 can be swung and moved in this state, so that the end can be securely nipped.

  In particular, in the winding device 1B of FIG. 6A, the cross cutter 12 further advances slightly, and the nip portion 19 moves along the web material 2 and the touch roller 5, whereby the web material 2 by the nip portion 19 is moved. As described above, the length between the nip position and the end of the sheet becomes shorter. Therefore, the end does not hang down under its own weight until the end is nipped by the pressing plate 13.

1A, 1B Winding device 2 Web material 3 Slit blade 4 Guide roller 5 Touch roller 6 Winding roll 7 Winding core 8 Lever 9 Drive mechanism 10 Winding arm 11 Drive mechanism 12 Cross cutter 13 Presser plate 14 Drive mechanism 15 Carriage 16 Drive mechanism 17 Body 18 Engagement part 19 Nip part 20 Cut blade 21 Transition part 22a Opening 22b Notch 23 Pin

Claims (5)

A winding device for winding a web material on a winding roll in contact with a touch roller,
A cross cutter having a body;
A drive mechanism for moving the cross cutter toward the web material and moving forward between the touch roller and the take-up roller after winding of the web material is completed;
An engaging portion that is formed at a front edge of the body and engages the web material when the cross cutter moves toward the web material;
When the cross cutter is moved toward the web material, the touch roller is engaged with the web material at a position upstream of a contact point between the touch roller and the winding roll. A nip portion that presses the web material to nip the web material;
Provided in the cross cutter, disposed between the front edge portion and the middle abdomen, protruding from the body, and after the nip of the web material, at a position downstream of the contact point between the touch roller and the winding roll, A cutting blade that cross-cuts the material and forms its ends;
After cross-cutting the web material, it moves toward the end, engages with the end at a position downstream of the contact point between the touch roller and the winding roll, presses the end against the touch roller, Winding device consisting of a presser plate that nips.   2. The apparatus according to claim 1, wherein after the end nip, the cross cutter is retracted by the driving mechanism so that the winding core is engaged with the web material and the touch roller. 3.   The transition portion is formed between the front edge portion and the middle abdomen, and the transition portion engages with the web material, and the web material is cross-cut in this state. The device described in 1.   The said engaging part consists of the outward curved part of the said body, the said nip part consists of the outward bending part of the said body, and the said transition part consists of the flat inclination part of the said body. The device described.   After cross-cutting the web material, the cross-cutter is further advanced, thereby shortening the nip position of the web material by the outward bent portion and the length between the ends, and then the press plate and the touch roller The apparatus according to claim 4, wherein the end is nipped by.

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