JP3178319U - Sheet winding device - Google Patents

Abstract

A sheet winding apparatus capable of suppressing a load on a supplied sheet when a winding roller moves from a standby position to a winding position when the winding shaft is switched.
A sheet winding apparatus includes a winding roller for winding a cut sheet on a new winding shaft when the winding shaft is switched. The winding roller 5 is configured to be movable between the standby position P3 and the winding position. When the winding roller 5 is located at the standby position P3, the winding roller 5 is in contact with the sheet 150. It is comprised so that it may move to the winding position from the standby position P3, maintaining the state which contacts.
[Selection] Figure 1

Description

  The present invention relates to a sheet winding device that winds a sheet.

  2. Description of the Related Art Conventionally, there is known a sheet winding apparatus configured to be able to switch a winding shaft that winds a supplied sheet (for example, see Patent Document 1).

  As shown in FIG. 5, such a conventional sheet winding apparatus 500 includes a guide roller 501, two winding shafts 502, a touch roller 503, a turret board 504, and a winding roller 505. Yes.

  The guide roller 501 is provided to convey the sheet 550 supplied from the previous process (upstream side) to the take-up shaft 502. The take-up shaft 502 is provided to take up the sheet 550. The take-up shaft 502 is exchanged between the take-up position P11 for taking up the sheet 550 and the downstream side of the take-up position P11. For the replacement position P12. The touch roller 503 is provided to press (pressure contact) the sheet 550 against the winding shaft 502 located at the winding position P11.

  The turret board 504 is configured to rotatably support the winding shaft 502 and to rotate (turn) in the R11 direction. Therefore, when the turret board 504 is turned in the R11 direction, the winding shaft 502 located at the winding position P11 is moved to the replacement position P12, and the winding shaft 502 located at the replacement position P12 is moved to the winding position. Moved to P11.

  The winding roller 505 is provided to wind the cut sheet 550 around the new winding shaft 502 when the winding shaft 502 is switched. The winding roller 505 is rotatably supported by the winding arm 505a. In addition, the winding roller 505 moves between a standby position P13 that is separated from the sheet 550 and a winding position P14 that contacts the sheet 550 (see FIG. 7) by rotating the winding arm 505a. It is configured as follows.

  In the sheet winding device 500, when the sheet 550 is wound, the sheet 550 is wound by the winding shaft 502 positioned at the winding position P11. At this time, the touch roller 503 presses the upper surface of the sheet 550, and the lower surface of the sheet 550 is disposed inside when being wound. That is, the sheet winding device 500 is configured to perform upper winding. At this time, the winding roller 505 is located at the standby position P13.

  In the sheet winding device 500, when the winding shaft 502 is switched, the turret board 504 turns in the R11 direction as shown in FIG. As a result, the take-up shaft 502 located at the take-up position P11 moves to the exchange position P12, and the take-up shaft 502 located at the exchange position P12 moves to the take-up position P11. That is, the winding shaft 502 that is winding is disposed at the exchange position P12 on the downstream side, and the new winding shaft 502 is disposed at the winding position P11.

  Thereafter, the winding arm 505a is rotated to move the winding arm 505 from the standby position P13 to the winding position P14 (see FIG. 7). As a result, as shown in FIG. 7, the sheet 550 supplied to the take-up shaft 502 located at the exchange position P12 is pushed downward via the take-up shaft 502 located at the take-up position P11. Then, the sheet 550 is cut by a cutting device (not shown) at a cutting position C11 (see FIG. 8) between the winding shaft 502 and the winding roller 505 positioned at the winding position P11. Then, the leading end of the cut sheet 550 is wound around the winding shaft 502 located at the winding position P11, whereby the switching of the winding shaft 502 is completed. It should be noted that the winding of the leading end of the cut sheet 550 around the winding shaft 502 may be performed by, for example, a charging device (not shown).

Utility Model Registration No. 3171031

  However, in the conventional sheet winding apparatus 500 described above, when the winding roller 505 comes into contact with the supplied sheet 550, the winding roller 505 starts to rotate due to the conveying force of the sheet 550. There is a problem that a load is applied. When a load is applied to the sheet 550, the sheet 550 is damaged and the quality of the sheet 550 is deteriorated.

  The present invention has been made to solve the above-described problems, and an object of the present invention is supplied when the winding roller moves from the standby position to the winding position when the winding shaft is switched. It is an object of the present invention to provide a sheet winding device capable of suppressing the load on the sheet.

  In order to achieve the above object, a sheet winding apparatus according to the present invention is a sheet winding apparatus configured to be able to switch a winding shaft for winding a supplied sheet, and at the time of switching the winding shaft, A winding roller for winding the cut sheet around a new winding shaft is provided. The winding roller is configured to be movable between the standby position and the winding position, and maintains a state of contacting the sheet when positioned at the standby position and contacting the sheet when switching the winding shaft. However, it is configured to move from the standby position to the winding position.

  With this configuration, the winding roller and the sheet are not in contact with each other when the winding roller moves from the standby position to the winding position, like a conventional winding roller that is separated from the sheet at the standby position. Unlike the case of changing from the contact state to the contact state, the winding roller is always in contact with the sheet, and the change from the non-contact state to the contact state does not occur.

  In the sheet winding apparatus, when the winding roller is located at the winding position, the angle range in which the new winding shaft and the sheet come into contact is larger than when the winding roller is located at the standby position. It may be configured as follows.

  According to the sheet winding device of the present invention, when the winding shaft is switched, it is possible to suppress a load from being applied to the supplied sheet when the winding roller moves from the standby position to the winding position.

1 is a schematic configuration diagram illustrating a sheet winding device according to an embodiment of the present invention. It is the figure which showed the state which the turret board of the sheet winding apparatus of FIG. 1 rotated. It is the figure which showed the state which the winding roller of the sheet | seat winding apparatus of FIG. 2 moved to the winding position. It is the figure which showed the state by which the sheet | seat was cut | disconnected in the sheet winding apparatus of FIG. It is the schematic block diagram which showed the sheet winding apparatus by an example of the past. It is the figure which showed the state which the turret board of the sheet | seat winding apparatus of FIG. 5 rotated. It is the figure which showed the state which the winding roller of the sheet winding apparatus of FIG. 6 moved to the winding position. It is the figure which showed the state by which the sheet | seat was cut | disconnected in the sheet winding apparatus of FIG.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

−Configuration−
FIG. 1 is a schematic configuration diagram illustrating a sheet winding apparatus according to an embodiment of the present invention. First, the configuration of the sheet winding apparatus 100 according to the present embodiment will be described with reference to FIG. In FIG. 1, the Y2 direction side is the upstream side, and the Y1 direction side is the downstream side.

  As shown in FIG. 1, the sheet winding device 100 has a function of winding a belt-shaped sheet (web) 150 supplied from the previous process (upstream side). The sheet 150 is made of a resin such as PET (polyethylene terephthalate), for example, and may be subjected to processing such as corona treatment or coding on the lower surface in the previous step.

  The sheet winding device 100 includes a plurality of guide rollers 1, two winding shafts 2, a touch roller 3, a turret board 4, and a winding roller 5. The sheet winding apparatus 100 is configured to perform an upper winding that winds the sheet 150 so that the lower surface is disposed inside.

  The guide roller 1 is provided to convey the sheet 150 supplied from the previous process to the winding shaft 2. The take-up shaft 2 is provided to take up the sheet 150, and includes, for example, an air shaft and a core that is detachably attached to the air shaft. The two winding shafts 2 are arranged so as to face each other with the rotation center of the turret board 4 interposed therebetween. Specifically, the take-up shaft 2 is arranged at a take-up position P1 for taking up the sheet 150 and an exchange position P2 at a downstream side of the take-up position P1 for exchanging the take-up shaft 2. Has been placed. The touch roller 3 is provided to press (press) the sheet 150 against the winding shaft 2 located at the winding position P1.

  The turret board 4 is configured to rotatably support the winding shaft 2 and to rotate (turn) in the R1 direction. The turret board 4 rotates 180 degrees in the R1 direction to move the winding shaft 2 located at the winding position P1 to the replacement position P2 and to wind the winding shaft 2 located at the replacement position P2. It is configured to move to the position P1.

  The winding roller 5 is provided to wind the cut sheet 150 around the new winding shaft 2 when the winding shaft 2 is switched. The winding roller 5 is rotatably supported by the winding arm 5a. Further, the winding roller 5 is positioned at the time of switching the winding shaft 2 from the standby position P3 which is normally positioned (when switching the winding shaft 2) by rotating the winding arm 5a. It is configured to be movable between the winding position P4 (see FIG. 3).

  The winding roller 5 is in contact with the sheet 150 when positioned at the standby position P3, and is in contact with the sheet 150 when positioned at the winding position P4. That is, the winding roller 5 is always in contact with the sheet 150 when the sheet 150 is wound and when the winding shaft 2 is switched.

-Operation-
1-4 is a figure for demonstrating operation | movement of the sheet | seat winding apparatus by one Embodiment of this invention. Next, with reference to FIGS. 1-4, operation | movement of the sheet winding apparatus 100 by this embodiment is demonstrated.

[When winding the sheet]
First, as shown in FIG. 1, the sheet 150 supplied from the previous process (upstream side) touches the winding shaft 2 positioned at the winding position P <b> 1 via the plurality of guide rollers 1 and the winding roller 5. It is conveyed between the rollers 3. Then, with the upper surface of the sheet 150 being pressed by the touch roller 3, the winding shaft 2 is rotated clockwise in FIG. 1, so that the sheet 150 is wound around the winding shaft 2 located at the winding position P1. Taken. For this reason, when the lower surface of the sheet 150 is wound, the upper winding disposed inside is performed. The touch roller 3 moves to the upstream side (Y2 direction) as the winding diameter increases due to the winding of the sheet 150.

  Here, since the winding roller 5 is located at the standby position P3 and is in contact with the upper surface of the sheet 150, the winding roller 5 is rotated by the conveying force of the sheet 150. Note that the standby position P3 is upstream of the winding shaft 2 located at the winding position P1 and is between the guide roller 1 and the winding shaft 2.

[When switching the winding axis]
When the switching of the winding shaft 2 is started, first, as shown in FIG. 2, the turret board 4 is rotated 180 degrees in the R1 direction. Thereby, the winding shaft 2 located at the winding position P1 is moved to the replacement position P2, and the winding shaft 2 located at the replacement position P2 is moved to the winding position P1. That is, the winding shaft 2 that is winding is disposed at the exchange position P2 on the downstream side, and the new winding shaft 2 is disposed at the winding position P1.

  Next, when the winding arm 5a is rotated, the winding roller 5 moves from the standby position P3 (see FIG. 2) to the winding position P4 (see FIG. 3). Note that the winding position P4 is downstream of the new winding shaft 2 located at the winding position P1 and below the new winding shaft 2 located at the winding position P1. Further, when the winding roller 5 moves from the standby position P3 to the winding position P4, the winding roller 5 is kept in contact with the sheet 150, and the sheet 150 is conveyed and the winding arm 5a is rotated. Move while rotating according to the movement.

  When the winding roller 5 moves to the winding position P4, the sheet 150 is conveyed downstream from the new winding shaft 2 and then returned to the upstream side and supplied to the new winding shaft 2. For this reason, when the winding roller 5 is positioned at the winding position P4, an angle range in which the new winding shaft 2 and the sheet 150 are in contact with each other compared to when the winding roller 5 is positioned at the standby position P3 ( The length of the portion in contact with the sheet 150 in the circumferential direction of the new winding shaft 2 is increased, and the sheet 150 is in contact with the lower end portion of the new winding shaft 2.

  Thereafter, the sheet 150 is cut at the cutting position C1 (see FIG. 4) by a cutting device (not shown). The cutting position C1 is a position in the vicinity of the upper end portion of the new winding shaft 2, and the tip of the cut sheet 150 is disposed on the surface of the new winding shaft 2 by its own weight. Accordingly, the leading end of the cut sheet 150 is guided between the new winding shaft 2 that rotates clockwise and the sheet 150 that is supplied from the winding roller 5 to the new winding shaft 2. The sheet 150 thus wound is wound around the new winding shaft 2. Thereafter, the winding arm 5a is rotated, so that the winding roller 5 moves from the winding position P4 to the standby position P3 while maintaining the state in contact with the sheet 150. In this way, the winding shaft 2 is switched. Thereafter, the winding shaft 2 located at the replacement position P2 is replaced.

  By repeating the above operation, the sheet 150 is continuously wound while switching the winding shaft 2.

-Effect-
In the present embodiment, as described above, even when the winding roller 5 is in the standby position P3, the winding roller 5 is in contact with the sheet 150, so that the winding roller is separated from the sheet at the standby position. Unlike the case where the winding roller and the sheet change from the non-contact state to the contact state when moving from the standby position to the winding position, the winding roller 5 is always in contact with the sheet 150. Since the change to the contact state does not occur, it is possible to suppress the load on the sheet 150. Thereby, since it can suppress that the sheet | seat 150 generate | occur | produces a damage | wound etc., it can suppress that the quality of the sheet | seat 150 falls.

  Further, in this embodiment, by moving the winding roller 5 to the winding position P <b> 4, the angle range in which the new winding shaft 2 and the sheet 150 come into contact with each other is increased, so that the sheet 150 has a lower end of the new winding shaft 2. The leading end of the cut sheet 150 is guided between the new winding shaft 2 that rotates clockwise and the sheet 150 that is supplied from the winding roller 5 to the new winding shaft 2 by contacting the section. Therefore, the cut sheet 150 can be wound around the new winding shaft 2 without providing a charging device or the like.

-Other embodiments-
In addition, embodiment disclosed this time is an illustration in all the points, Comprising: It does not become a basis of limited interpretation. Therefore, the technical scope of the present invention is not interpreted only by the above-described embodiments, but is defined based on the description of the scope of claims for utility model registration. In addition, the technical scope of the present invention includes all modifications within the meaning and scope equivalent to the scope of claims for utility model registration.

  For example, in the present embodiment, an example in which two winding shafts 2 are provided on the turret board 4 is shown, but the present invention is not limited thereto, and three or more winding shafts may be provided on the turret board.

  In the present embodiment, an example in which the winding shaft 2 is switched by turning the turret board 4 is shown. However, the present invention is not limited to this, and the winding shaft can be moved directly by moving a plurality of winding shafts. May be switched.

  In the present embodiment, the cutting device for cutting the sheet 150 may be a flying cutter in which a blade is formed over the entire length in the width direction of the sheet 150, or a slide cutter in which the blade travels in the width direction of the sheet. Also good.

2 Winding shaft 5 Winding roller 100 Sheet winding device 150 Sheet P3 Standby position P4 Winding position

In order to achieve the above object, a sheet winding apparatus according to the present invention is a sheet winding apparatus configured to be able to switch a winding shaft for winding a supplied sheet, and at the time of switching the winding shaft, A winding roller for winding the cut sheet around a new winding shaft is provided. The winding roller is configured to be movable between the standby position and the winding position, and maintains a state of contacting the sheet when positioned at the standby position and contacting the sheet when switching the winding shaft. However, it is configured to move from the standby position to the winding position . The winding position is downstream of the new winding shaft. When the winding roller is located at the winding position, the sheet winding device returns the sheet to the upstream side after the sheet is conveyed by the winding roller to the downstream side of the new winding shaft, so that a new winding is performed. By being fed to the shaft, when the sheet is cut, the leading edge of the sheet is guided between the new winding shaft and the sheet fed from the winding roller to the new winding shaft, thereby cutting the sheet. The formed sheet is configured to be wound around a new winding shaft .

In the above-described sheet winding device, when the winding roller is positioned at the winding position, the new winding shaft and the sheet come into contact with each other as compared with the case where the winding roller is positioned at the standby position . You may be comprised so that an angle range may become large.

When the winding roller 5 moves to the winding position P4, the sheet 150 is conveyed downstream from the new winding shaft 2 and then returned to the upstream side and supplied to the new winding shaft 2. Therefore, when the winding roller 5 is located at the winding position P4 is a new winding the winding roller 5 than when located at the standby position P3, the new winding shaft 2 and the seat 150 are in contact The angle range of the shaft 2 (the length of the portion in contact with the sheet 150 in the circumferential direction of the new winding shaft 2) is increased, and the sheet 150 is in contact with the lower end portion of the new winding shaft 2.

Claims (2)

A sheet winding device configured to be able to switch a winding shaft for winding a supplied sheet,
A winding roller for winding the cut sheet around a new winding shaft when the winding shaft is switched,
The winding roller is configured to be movable between a standby position and a winding position, and is in contact with the sheet when positioned at the standby position and maintains a state of contacting with the sheet when the winding shaft is switched. The sheet winding device is configured to move from the standby position to the winding position. In the sheet winding apparatus according to claim 1,
When the winding roller is located at the winding position, the angle range where the new winding shaft and the sheet come into contact is larger than when the winding roller is located at the standby position. A sheet take-up device.

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