JP2013067505A - Web winder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a web winder that efficiently replaces a winding-core of a web.SOLUTION: The web winder includes: motors 5, 6 that rotate inside and outside rotary shafts 2, 3 disposed coaxially; two pairs of winding-core support arms 11, 21 fixed to the inside and outside rotary shafts 2, 3 at a base end, holding winding-cores 13, 23 at a distal end, and having winding-core set sections 12, 22 for rotating the winding-cores 13, 23; and two pairs of support roll support arms 31, 41 that form predetermined angles with each of winding-core support arms 11, 21, are fixed to the inside and outside rotary shafts 2, 3 at the base end, and rotatably holding support rolls 32, 42 at the distal end. Two pairs of arms 21, 31 fixed to the inside rotary shaft 2 penetrate through the outer rotary shaft 3. A cut-out 15 that allows rotation of the arms 21, 31 is provided.

Description

  The present invention relates to a web winding device.

  A conventional web winding device will be described with reference to FIGS. 14 to 19. FIG. 14 is a schematic diagram illustrating an example of a configuration of a conventional web winding device. 15 to 19 are schematic diagrams for explaining a winding core replacement operation of a web (printing object or winding object such as paper, resin film, metal foil, etc.) by the web winding apparatus of FIG. .

  A web winding device 100 shown in FIG. 14 includes a support column 103 that pivotally supports a rotation shaft 102 and a rotation motor 104 that rotationally drives the rotation shaft 102. A pair of first winding core support arms 111 are fixed to the rotating shaft 102 at their proximal ends, and have a first winding core installation portion 112 at their distal ends. Similarly, a pair of second winding core support arms 121 are fixed to the rotating shaft 102 at their proximal ends, and have a second winding core installation portion 122 at their distal ends. The first winding core support arm 111 and the second winding core support arm 121 are disposed so as to face each other with the rotation shaft 102 as a center.

  A pair of first support roll support arms 131 are fixed to the rotating shaft 102 at their proximal ends, and hold the first support roll 132 rotatably at their distal ends. Further, the pair of first support roll support arms 131 forms an angle of 90 ° on the opposite side with respect to the rotation direction of the rotary shaft 102 with respect to the first winding core support arm 111. Similarly, a pair of second support roll support arms 141 are fixed to the rotating shaft 102 at their proximal ends, and hold the second support roll 142 rotatably at their distal ends. Further, the pair of second support roll support arms 141 forms an angle of 90 ° with the second winding core support arm 121 on the opposite side to the rotation direction of the rotation shaft 102.

  The first winding core installation section 112 holds the first winding core 113 and rotates the first winding core 113 for winding (the motor for rotation is built-in). ). Similarly, the second winding core installation unit 122 holds the second winding core 123 and rotates the second winding core 123 for winding (a motor for rotation is incorporated). doing).

  Further, when the winding core around which the web 101 is wound is at a predetermined cutting position, the web winding device 100 causes the cutting blade 152 to move the web 101 in the width direction between the winding core and the predetermined nip roll 151. A cutting unit 150 is provided for cutting.

  Further, the web winding device 100 is moved up and down to transfer (replace) the winding core when the winding core around which the web 101 is wound is at a removal position facing the winding position in the same horizontal plane. A lift 160 is provided.

  As shown in FIG. 15, when the first winding core 113 winds a predetermined amount of the web 101, the first winding core support arm 111 and the second winding core support arm 121 are driven by the rotation motor 104. The first support roll support arm 131 and the second support roll support arm 141 are rotated together.

  Accordingly, as shown in FIG. 16, when the first winding core 113 is moved to a predetermined cutting position, the cutting portion 150 is slid toward the rotating shaft 102, and the second winding core 123 and the nip roll 151 are moved. The web 101 is sandwiched between the web 101, the web 101 is also fixed to the second winding core 123, and the web 101 is stretched by the nip roll 151 and the first support roll 132. Then, the web 101 is cut in the width direction by the cutting blade 152.

  Next, as shown in FIG. 17, after the second winding core 123 is moved to the winding position, the second winding core installation unit 122 rotates the second winding core 123, so that the second winding core 123 is rotated. The core 123 starts winding the web 101.

  On the other hand, as shown in FIG. 18, at the take-off position of the take-up core, the lift lift 160 is raised until it comes into contact with or close to the outer periphery of the taken-up web 101, and the first take-up web 101 The winding core 113 is ready to be transferred to the lift lift 160. Then, the first winding core 113 is removed. Thereafter, as shown in FIG. 19, the lifting lift 160 is lowered and the first winding core 113 is appropriately transported. Thereafter, the new winding core is installed in the first winding core installation unit 112.

JP-A-2-282148 JP-A-7-257788

  However, in the conventional web winding device 100, the first winding core support arm 111 and the second winding core support arm 121 rotate together, so the first winding core 113 winds the web 101. After the take-up, the first take-up core 113 is rotated to the standby position (removal position) opposite to the take-up position in the same horizontal plane, and then the elevating lift 160 is moved up and down to replace the first take-up core 113. Must. That is, it takes time for the winding core replacement operation. For this reason, in a high-speed printing device such as a rotary printing device, it may take more time for the take-up core replacement operation than for web printing. Time limits the printing speed.

  Actually, when a conventional web winding apparatus is operated with paper as a web and a web winding amount of 3000 m and a web winding speed of 200 m / min, the winding itself is completed in 3000/200 = 15 minutes. However, since it took 20 minutes for one winding core replacement operation, the web winding device had to be stopped for 5 minutes for each replacement operation.

  On the other hand, in order to avoid such a stop of the web winding device, there is also known a device capable of storing a printed web in front of the web winding device (Patent Document 2). However, since there is a limit to the space for storing the printed web, it is difficult to cope with the operation of the web winding device for a long time.

  The present invention has been devised to pay attention to the above problems and to effectively solve them. An object of the present invention is to provide a web winding device that can efficiently perform a web winding core replacement operation.

  The present invention includes an inner rotation shaft and an outer rotation shaft that are arranged coaxially with each other, a support that rotatably supports the inner rotation shaft and the outer rotation shaft, and a rotation of the inner rotation shaft. A first rotation motor to be driven, a second rotation motor to rotationally drive the outer rotation shaft, a base end side fixed to the inner rotation shaft, a distal end side holding the first winding core and the A pair of first winding core support arms having a first winding core installation portion for rotating the first winding core for winding, and fixed to the outer rotation shaft on the proximal end side, and on the distal end side A pair of second winding core support arms that hold a second winding core and have a second winding core installation section that rotates the second winding core for winding, and the first winding core support Make a predetermined angle with the arm, A pair of first support roll support arms fixed to the inner rotation shaft and rotatably holding the first support roll on the tip side, and the second winding core support arm form the predetermined angle, and a base A pair of second support roll support arms fixed to the outer rotation shaft on the end side and rotatably holding the second support roll on the tip side, and the outer rotation shaft includes an inner rotation shaft A notch for the first winding core support arm is provided, through which the fixed first winding core support arm penetrates and allowing the first winding core support arm to rotate within a predetermined range; and A first support roll support arm fixed to the inner rotation shaft passes through the outer rotation shaft and allows the first support roll support arm to rotate within a predetermined range. It is a web winding apparatus according to claim the notch for the first support roll support arms are provided.

  According to the present invention, the first winding core support arm and the second winding core support arm can be individually rotated. Therefore, by rotating each winding core support arm independently of each other, the web The wound winding core can be removed at an arbitrary position. For this reason, since there is no restriction on the rotational operation of the winding core support arm, it is not necessary to use a lifting lift, and the web winding core replacement operation can be performed efficiently.

  Preferably, first and second rotation motors that respectively rotate and drive the inner and outer rotation shafts, and first and second winding core installation portions that rotate the first and second winding cores, respectively. A control unit that controls the web, and after the winding core on which the web is wound by the control of the control unit is moved to a predetermined cutting position, the web is moved in the width direction between the winding core and the predetermined nip roll. And a cutting section for cutting the sheet. According to this, the control for exchanging the winding core can be automatically performed more efficiently.

  Alternatively, preferably, the first winding core support arm has first moving means capable of moving the first winding core installation portion in a longitudinal direction of the first winding core support arm, The second winding core support arm has second moving means capable of moving the second winding core installation portion in the longitudinal direction of the second winding core support arm. If such a configuration is adopted, the take-up core removal position can be moved further in the longitudinal direction at an arbitrary rotation position of the take-up core support arm, thereby making the take-up core removal position more flexible. (In particular, the flexibility in the vertical direction is increased), so that the web winding core replacement operation can be performed more efficiently.

  Further preferably, the first and second rotating motors that respectively rotate and drive the inner and outer rotating shafts, and the first and second winding core setting portions that rotate the first and second winding cores, respectively. And a control unit for controlling the first and second moving means capable of moving the first and second winding core installation units, respectively, and a winding core for winding the web by the control of the control unit is predetermined. And a cutting portion for cutting the web in the width direction between the winding core and a predetermined nip roll after being moved to the cutting position. According to this, the control for exchanging the winding core can be performed automatically with extremely high efficiency.

  The predetermined angle is generally preferably 90 °. In this case, when the web is cut, an appropriate tension is applied to the web, and the web can be cut stably.

   According to the present invention, the first winding core support arm and the second winding core support arm can be individually rotated. Therefore, by rotating each winding core support arm independently of each other, the web The wound winding core can be removed at an arbitrary position. For this reason, since there is no restriction on the rotational operation of the winding core support arm, it is not necessary to use a lifting lift, and the web winding core replacement operation can be performed efficiently.

It is a schematic side view which shows the state before the web winding core replacement | exchange operation | movement of the web winding apparatus in the 1st Embodiment of this invention. It is a schematic front view which shows the principal part of the web winding apparatus of FIG. It is a schematic side view for demonstrating the winding core replacement | exchange operation | movement of the web by the web winding apparatus of FIG. It is a schematic side view for demonstrating the winding core replacement | exchange operation | movement of the web by the web winding apparatus of FIG. It is a schematic side view for demonstrating the winding core replacement | exchange operation | movement of the web by the web winding apparatus of FIG. It is a schematic side view for demonstrating the winding core replacement | exchange operation | movement of the web by the web winding apparatus of FIG. It is a schematic side view for demonstrating the winding core replacement | exchange operation | movement of the web by the web winding apparatus of FIG. It is a schematic side view which shows the state before the web winding core replacement | exchange operation | movement of the web winding apparatus in the 2nd Embodiment of this invention. It is a schematic side view for demonstrating the winding core replacement | exchange operation | movement of the web by the web winding apparatus of FIG. It is a schematic side view for demonstrating the winding core replacement | exchange operation | movement of the web by the web winding apparatus of FIG. It is a schematic side view for demonstrating the winding core replacement | exchange operation | movement of the web by the web winding apparatus of FIG. It is a schematic side view for demonstrating the winding core replacement | exchange operation | movement of the web by the web winding apparatus of FIG. It is a schematic side view for demonstrating the winding core replacement | exchange operation | movement of the web by the web winding apparatus of FIG. It is a schematic side view which shows an example of a structure of the conventional web winding apparatus. It is a schematic side view for demonstrating the winding core replacement | exchange operation | movement of the web by the web winding apparatus of FIG. It is a schematic side view for demonstrating the winding core replacement | exchange operation | movement of the web by the web winding apparatus of FIG. It is a schematic side view for demonstrating the winding core replacement | exchange operation | movement of the web by the web winding apparatus of FIG. It is a schematic side view for demonstrating the winding core replacement | exchange operation | movement of the web by the web winding apparatus of FIG. It is a schematic side view for demonstrating the winding core replacement | exchange operation | movement of the web by the web winding apparatus of FIG.

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.
FIG. 1 is a schematic side view showing a state of the web winding device according to the first embodiment of the present invention before a web winding core replacement operation. FIG. 2 is a schematic front view showing a main part of the web winding device of FIG. 3 to 7 are schematic side views for explaining the web winding core replacement operation by the web winding device of FIG.

  As shown in FIGS. 1 and 2, the web winding device 1 according to the present embodiment includes an inner rotation shaft 2 and an outer rotation shaft 3 that are arranged coaxially with each other, and an inner rotation shaft 2 and an outer rotation shaft. A column 4 that rotatably supports the shaft 3, a first rotation motor 5 that rotationally drives the inner rotation shaft 2, and a second rotation motor 6 that rotationally drives the outer rotation shaft 3. I have.

  A pair of first winding core support arms 11 are fixed to the inner rotating shaft 2 at their proximal ends, and have a first winding core installation portion 12 at their distal ends. On the other hand, a pair of second winding core support arms 21 are fixed to the outer rotating shaft 3 at their proximal ends, and have a second winding core installation portion 22 at their distal ends.

  As shown in FIG. 2, the outer rotation shaft 3 is provided with a first winding core support arm cutout portion 15 through which the first winding core support arm 11 fixed to the inner rotation shaft 2 passes. Yes. The first winding core support arm cutout portion 15 allows the first winding core support arm 11 to rotate with respect to the outer rotation shaft 3 within a predetermined range.

  The first winding core installation unit 12 holds the first winding core 13 and rotates the first winding core 13 for web winding. Specifically, the first winding core installation unit 12 has a first built-in motor 16. Similarly, the second winding core setting part 22 holds the second winding core 23 and rotates the second winding core 23 for web winding. Specifically, the second winding core installation unit 22 has a second built-in motor 26.

  A pair of first support roll support arms 31 are fixed to the inner rotation shaft 2 on the proximal end side, and hold the first support roll 32 rotatably on the distal end side. Further, the pair of first support roll support arms 31 form an angle of 90 ° on the opposite side with respect to the rotation direction of the first winding core support arm 11 and the inner rotation shaft 2 (outer rotation shaft 3). ing. On the other hand, a pair of second support roll support arms 41 are fixed to the outer rotation shaft 3 on the proximal end side, and hold the second support roll 42 rotatably on the distal end side. Further, the pair of second support roll support arms 41 forms an angle of 90 ° on the opposite side with respect to the rotation direction of the second winding core support arm 21 and the outer rotation shaft 3 (inner rotation shaft 2). ing.

  The outer rotation shaft 3 is provided with a first support roll support arm cutout (not shown) through which the first support roll support arm 31 fixed to the inner rotation shaft 2 passes. The first support roll support arm cutout portion allows the first support roll support arm 31 to rotate within a predetermined range with respect to the outer rotation shaft 3.

  Returning to FIG. 1, the web winding device 1 includes first and second rotating motors 5 and 6 that respectively rotate and drive the inner and outer rotating shafts 2 and 3, and first and second winding cores 13, And a control unit 70 for controlling the first and second winding core setting units 12 and 22 (specifically, the first and second built-in motors 16 and 26) that respectively rotate the rotation unit 23.

  Further, the web winding device 1 is configured such that the winding core that has wound the web 10 is moved to a predetermined cutting position under the control of the control unit 70, and then between the winding core and the predetermined nip roll 51, A cutting portion 50 for cutting the web in the width direction by the cutting blade 52 is further provided.

  Specifically, when the first winding core 13 winds a predetermined amount of the web 10, the control unit 70 of the present embodiment starts from the state before the winding core replacement operation shown in FIG. 3, the first winding core support arm 11 and the first support roll support arm 31 are rotated together as shown in FIG. 3, and at the same time, the second rotation motor 6 is rotated. , The second winding core support arm 21 and the second support roll support arm 41 are rotated together.

  By this rotation control, as shown in FIG. 4, when the first winding core 13 is rotated to a predetermined cutting position, the cutting portion 50 is moved toward the inner rotation shaft 2 (outer rotation shaft 3). The web 10 is sandwiched between the second winding core 23, which is slid and wound in advance with the adhesive tape, and the nip roll 51 which is a constituent member of the cutting unit 50. As a result, the web 10 is fixed to the second winding core 23, and the web 10 can be stretched in a suitable state by the nip roll 51 and the first support roll 32. In this state, the cutting blade 52 cuts the web 10 in the width direction.

  Next, as shown in FIG. 5, the slide movement of the cutting unit 50 is returned, and the control unit 70 rotates the second winding core 23 to the winding position by driving the second rotation motor 6. After that, the second winding core 23 is rotated by the second winding core installation unit 22 (second built-in motor 26), thereby starting the winding of the web 10 by the second winding core 23. Yes.

  On the other hand, in order to remove the first winding core 13, the mounting table 60 is installed at the removal position of the first winding core 13. The mounting table 60 is a table having a constant height. Then, as shown in FIG. 6, the control unit 70 drives the first rotating motor 5 in the reverse direction to move the first winding core 13 in the reverse direction to the predetermined removal position (clockwise direction in the figure). To turn). That is, since the rotation of the second winding core 23 and the rotation of the first winding core 13 can be controlled independently of each other, the removal position can be arbitrarily set. In particular, if the first rotation motor 5 is configured as a torque motor, the outer periphery of the wound web 10 and the installation base 60 come into contact with each other and a predetermined load is applied to the torque motor. Stops rotating. Thereby, the first winding core 13 can be automatically stopped at a predetermined removal position. Or the sensor which detects that the outer periphery of the wound web 10 and the mounting base 60 contact | abutted or adjoined is provided in the mounting base 60, and rotation of the 1st rotation motor 5 is stopped based on the said detection information. You may let them.

  Next, the operation of the present embodiment configured as described above will be described with reference to FIGS.

  As shown in FIG. 3, when the first winding core 13 winds up a predetermined amount of the web 10, the control unit 70 drives the first rotation motor 5, whereby the first winding core support arm 11, The first support roll support arm 31 rotates as a unit. At the same time, when the control unit 70 drives the second rotation motor 6, the second winding core support arm 21 and the second support roll support arm 41 rotate integrally.

  By this rotation control, as shown in FIG. 4, the first winding core 13 is rotated to a predetermined cutting position. In this state, the cutting portion 50 is slid toward the inner rotation shaft 2 (outer rotation shaft 3), and the second winding core 23 and the nip roll 51 before winding the web on which the adhesive tape is wound in advance. Thus, the web 10 is held. Thereby, the web 10 is also fixed to the second winding core 23. At this time, the web 10 is stretched in a suitable state by the nip roll 51 and the first support roll 32, and the web 10 is easily cut in the width direction by the cutting blade 52. At this time, it is preferable that the edge part of the cut | disconnected web 10 by the side of the 2nd winding core 23 is wound around the 2nd winding core 23 by the air blowing means etc. which are not shown in figure.

  Next, as shown in FIG. 5, the slide movement of the cutting unit 50 is returned, and the control unit 70 drives the second rotation motor 6 to rotate the second winding core 23 to the winding position. Thereafter, the second winding core 23 is rotated by the second winding core installation unit 22, whereby the winding of the web 10 by the second winding core 23 is started. On the other hand, a mounting table 60 for removing the first winding core 13 is installed at a position where the first winding core 13 is removed.

  Next, as shown in FIG. 6, the control unit 70 rotates the first winding core 13 to a predetermined removal position by driving the first rotation motor 5 in the reverse direction. Then, the first winding core 13 is removed. Thereafter, the mounting table 60 is moved together with the first winding core 13, and a new winding core is installed in the first winding core installation unit 12.

  Thereafter, as shown in FIG. 7, when the control unit 70 drives the first rotation motor 5 in the forward direction again, the first winding core 13 is rotated to the standby position.

  As described above, according to this embodiment, since the first winding core support arm 11 and the second winding core support arm 21 can be individually rotated, the respective winding core support arms are independent from each other. The winding core around which the web 10 is wound can be removed at an arbitrary position by rotating the web 10. For this reason, since there is no restriction on the rotational operation of the winding core support arm, it is not necessary to use a lifting lift, and the web winding core replacement operation can be performed efficiently.

  In particular, if the first rotation motor 5 is configured as a torque motor, the outer periphery of the wound web 10 and the installation base 60 come into contact with each other and a predetermined load is applied to the torque motor. Stops rotating. Thereby, the first winding core 13 can be automatically stopped at a predetermined removal position. Or the sensor which detects that the outer periphery of the wound web 10 and the mounting base 60 contact | abutted or adjoined is provided in the mounting base 60, and rotation of the 1st rotation motor 5 is stopped based on the said detection information. You may let them.

  Further, the first support roll support arm 31 forms an angle of 90 ° on the opposite side with respect to the rotation direction of the first winding core support arm 11 and the inner rotation shaft 2 (outer rotation shaft 3). Therefore, when the web 10 is cut, an appropriate tension is applied to the web 10, and the web 10 can be cut stably.

Next, a second embodiment of the present invention will be described with reference to FIGS.
FIG. 8 is a schematic side view showing a state before the web winding core replacement operation of the web winding device according to the first embodiment of the present invention. 9 to 13 are schematic side views for explaining the web winding core replacement operation by the web winding device of FIG. In the web winding device 1 ′ shown in FIG. 8, the first winding core support arm 11 can move the first winding core installation portion 12 in the longitudinal direction of the first winding core support arm 11. The second winding core support arm 21 similarly moves the second winding core support portion 22 in the longitudinal direction of the second winding core support arm 21. It has the 2nd moving means 24 which can be. Further, the control unit 70 ′ rotates the first and second rotating motors 5 and 6 that rotate and drive the inner and outer rotating shafts 2 and 3, respectively, and the first and second winding cores 13 and 23, respectively. Control the first and second winding core installation portions 12 and 22 and the first and second moving means 14 and 24 capable of moving the first and second winding core installation portions 12 and 22, respectively. It is supposed to be.

  The first moving means 14 slides and moves the first winding core installation portion 12 in the longitudinal direction of the first winding core support arm 11 by an electric ball screw provided on the first winding core support arm 11. Is possible. Similarly, the second moving means 24 slides the second winding core installation portion 22 in the longitudinal direction of the second winding core support arm 21 by means of an electric ball screw provided on the second winding core support arm 21. It can be moved. However, the first moving means 14 and the second moving means 24 may be air cylinders provided on the first winding core support arm 11 and the second winding core support arm 21, respectively.

  Control part 70 'of this Embodiment will drive the 1st rotation motor 5 from the state before the winding core replacement | exchange operation | movement shown in FIG. 8, if the 1st winding core 13 winds up the web 10 of predetermined amount. Accordingly, as shown in FIG. 9, the first winding core support arm 11 and the first support roll support arm 31 are rotated together, and at the same time, the second rotation motor 6 is driven. Thus, the second winding core support arm 21 and the second support roll support arm 41 are also rotated together.

  As shown in FIG. 10, when the first winding core 13 is rotated to a predetermined cutting position by this rotation control, the cutting portion 50 is moved toward the inner rotation shaft 2 (outer rotation shaft 3). The web 10 is sandwiched between the second winding core 23, which is slid and wound in advance with the adhesive tape, and the nip roll 51 which is a constituent member of the cutting unit 50. As a result, the web 10 is fixed to the second winding core 23, and the web 10 can be stretched in a suitable state by the nip roll 51 and the first support roll 32. In this state, the cutting blade 52 cuts the web 10 in the width direction.

  Next, as shown in FIG. 11, the slide movement of the cutting unit 50 is returned, and the control unit 70 rotates the second winding core 23 to the winding position by driving the second rotation motor 6. After that, the second winding core 23 is rotated by the second winding core installation unit 22 (second built-in motor 26), thereby starting the winding of the web 10 by the second winding core 23. Yes.

  On the other hand, the control unit 70 drives the first rotation motor 5 to rotate the first winding core 13 to a predetermined removal extension / contraction position. Here, since the rotation of the second winding core 23 and the rotation of the first winding core 13 can be controlled independently of each other, the expansion / contraction position for removal can be arbitrarily set. For example, the predetermined cutting position of the first winding core 13 and the predetermined removal expansion / contraction position may be the same position.

  Next, as shown in FIG. 12, the control unit 70 ′ is wound by moving the first winding core installation unit 12 in the longitudinal direction of the first winding core support arm 11 by the first moving means 14. The outer circumference of the web 10 is brought into contact with the ground.

  Next, the operation of the present embodiment configured as described above will be described with reference to FIGS.

  As shown in FIG. 9, when the first winding core 13 winds a predetermined amount of the web 10, the control unit 70 ′ drives the first rotation motor 5, whereby the first winding core support arm 11 and The first support roll support arm 31 rotates as a unit. At the same time, when the control unit 70 drives the second rotation motor 6, the second winding core support arm 21 and the second support roll support arm 41 rotate integrally.

  By this rotation control, the first winding core 13 is rotated to a predetermined cutting position as shown in FIG. In this state, the cutting portion 50 is slid toward the inner rotation shaft 2 (outer rotation shaft 3), and the second winding core 23 and the nip roll 51 before winding the web on which the adhesive tape is wound in advance. Thus, the web 10 is held. Thereby, the web 10 is also fixed to the second winding core 23. At this time, the web 10 is stretched in a suitable state by the nip roll 51 and the first support roll 32, and the web 10 is easily cut in the width direction by the cutting blade 52. At this time, it is preferable that the edge part of the cut | disconnected web 10 by the side of the 2nd winding core 23 is wound around the 2nd winding core 23 by the air blowing means etc. which are not shown in figure.

  Next, as shown in FIG. 11, the slide movement of the cutting unit 50 is returned, and the control unit 70 drives the second rotation motor 6 to rotate the second winding core 23 to the winding position. Thereafter, the second winding core 23 is rotated by the second winding core installation unit 22, whereby the winding of the web 10 by the second winding core 23 is started. On the other hand, when the control unit 70 drives the first rotation motor 5, the first winding core 13 rotates to a predetermined removal position.

  Next, as shown in FIG. 12, the control unit 70 ′ causes the first moving unit 14 to move the first winding core installation unit 12 in the longitudinal direction of the first winding core support arm 11, thereby winding the winding. The outer periphery of the web 10 is brought into contact with the ground. Then, the first winding core 13 is removed. Thereafter, a new winding core is installed in the first winding core installation unit 12.

  Thereafter, the control unit 70 ′ causes the first moving means 14 to return the extension movement of the first winding core installation unit 12 and drives the first rotation motor 5 as shown in FIG. The winding core 13 is rotated to the standby position.

  Also according to this embodiment, since the first winding core support arm 11 and the second winding core support arm 21 can be individually rotated, the respective winding core support arms are rotated independently of each other, The winding core around which the web 10 is wound can be removed at an arbitrary position. For this reason, since there is no restriction on the rotational operation of the winding core support arm, it is not necessary to use a lifting lift, and the web winding core replacement operation can be performed efficiently.

  Further, since the first moving means 14 and the second moving means 24 are provided, the winding core installation portion is further moved in the longitudinal direction of the winding core support arm at an arbitrary rotation position of the winding core support arm. By moving, the removal position of the winding core can be set more flexibly (in particular, the flexibility in the vertical direction is increased), so that the winding core replacement operation of the web 10 can be performed very efficiently.

DESCRIPTION OF SYMBOLS 1, 1 'Web winding device 2 Inner rotation shaft 3 Outer rotation shaft 4 Strut 5 First rotation motor 6 Second rotation motor 10 Web 11 First winding core support arm 12 First winding core installation part 13 First winding core 14 First moving means 15 First winding core support arm cutout portion 16 First built-in motor 21 Second winding core support arm 22 Second winding core installation portion 23 Second winding core 24 2nd moving means 26 2nd built-in motor 31 1st support roll support arm 32 1st support roll 41 2nd support roll support arm 42 2nd support roll 50 cutting part 51 nip roll 52 cutting blade 60 mounting table 70, 70 'control part DESCRIPTION OF SYMBOLS 100 Web winding device 101 Web 102 Rotating shaft 103 Support column 104 Rotating motor 111 First winding core support arm 112 First winding core installation part 113 First winding core 121 Second Centering support arm 122 Second winding core installation section 123 Second winding core 131 First support roll support arm 132 First support roll 141 Second support roll support arm 142 Second support roll 150 Cutting section 151 Nip roll 152 Cutting blade 160 Lifting lift

Claims (5)

An inner pivot shaft and an outer pivot shaft arranged coaxially with each other;
A strut that pivotally supports the inner rotation shaft and the outer rotation shaft, respectively,
A first rotation motor that rotationally drives the inner rotation shaft;
A second rotation motor that rotationally drives the outer rotation shaft;
A pair of first winding cores fixed to the inner rotation shaft on the proximal end side and holding a first winding core on the distal end side and rotating the first winding core for winding. A first winding core support arm;
A pair of second winding core installation portions that are fixed to the outer rotation shaft on the proximal end side, hold the second winding core on the distal end side, and rotate the second winding core for winding. A second winding core support arm;
A pair of first support roll support arms that form a predetermined angle with the first winding core support arm, are fixed to the inner rotation shaft on the proximal end side, and rotatably hold the first support roll on the distal end side. When,
A pair of second support roll supports that form the predetermined angle with the second winding core support arm, are fixed to the outer rotation shaft on the proximal end side, and rotatably hold the second support roll on the distal end side. Arm,
With
The first winding core support arm fixed to the inner rotation shaft passes through the outer rotation shaft, and the first winding core support arm is allowed to rotate within a predetermined range. A notch for the core support arm is provided, and
A first support roll support arm that allows a first support roll support arm fixed to the inner rotation shaft to pass through the outer rotation shaft and allows the first support roll support arm to rotate within a predetermined range. A web winder having a notch for use. Controlling first and second rotation motors that rotate and drive the inner and outer rotation shafts, respectively, and first and second winding core installation portions that rotate the first and second winding cores, respectively. A control unit;
A cutting unit that cuts the web in the width direction between the winding core and a predetermined nip roll after the winding core that has wound the web by the control of the control unit is moved to a predetermined cutting position;
The web winding device according to claim 1, further comprising: The first winding core support arm has first moving means capable of moving the first winding core installation portion in the longitudinal direction of the first winding core support arm;
The second winding core support arm has second moving means capable of moving the second winding core installation portion in the longitudinal direction of the second winding core support arm. The web winding device according to 1. First and second rotating motors for rotating the inner and outer rotating shafts, respectively, first and second winding core installation portions for rotating the first and second winding cores, and the first And a first and second moving means that can move the second winding core installation unit, respectively,
A cutting unit that cuts the web in the width direction between the winding core and a predetermined nip roll after the winding core that has wound the web by the control of the control unit is moved to a predetermined cutting position;
The web winding device according to claim 3, further comprising: The web winding device according to any one of claims 1 to 4, wherein the predetermined angle is 90 °.

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