JP2009255210A - Cutter and web conveyor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cutter and a web conveyor capable of making each shock-absorbing medium hardly exfoliated from an outer peripheral surface of each cylinder (each roller) by a simple constitution. <P>SOLUTION: The cutter comprises a cutting cylinder 10, a receiving cylinder 11 facing the cutting cylinder 10 across a web conveyance path, a plurality of cutting cylinder shock-absorbing members 23 extending in a circumferential direction on an outer peripheral surface of the cutting cylinder 10 and provided at predetermined intervals in an axial direction of the cutting cylinder 10, and a plurality of receiving cylinder shock-absorbing members 32 extending in a circumferential direction on an outer peripheral surface of the receiving cylinder 11 and provided at predetermined intervals in an axial direction of the receiving cylinder 11. The plurality of cutting cylinder shock-absorbing members 23 and the plurality of receiving cylinder shock-absorbing members 32 are arranged in a zigzag where the respective members 32 are put between the respective members 23. Each of the respective members 23 and 32 has a first shock-absorbing material layer 40 stuck to the outer peripheral surface via an adhesive part and a second shock-absorbing material layer 42 stuck to the first shock-absorbing material layer 40 via an adhesive part. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a cutting apparatus having a cutting blade having a cutting blade and a receiving cylinder having a cutting blade receiver, and a web conveying apparatus.

  2. Description of the Related Art Conventionally, a folding device having a pair of folding rollers for conveying a web is known (for example, see Patent Document 1). The pair of folding rollers is composed of a one-side roller and another roller facing the one-side roller, and crests and valleys alternately extend in the circumferential direction on the outer peripheral surfaces of the one-side roller and the other-side roller. Is formed. And the peak part of one side roller is arrange | positioned so as to oppose the trough part of another side roller, and the trough part of one side roller is arrange | positioned so as to oppose the peak part of another side roller. Accordingly, the web discharged from the pair of folding rollers is formed in a wave shape in the axial direction of the folding rollers, so that the bending rigidity in the web discharging direction can be improved.

JP 2005-126246 A

  By the way, when a pair of folding rollers of a conventional folding device is applied to, for example, a saw cylinder and a receiving cylinder of a cutting device, a peak portion formed on the saw cylinder and the receiving cylinder is between the saw cylinder and the receiving cylinder. It is necessary to configure with a cushioning material such as sponge so that it can pass through. That is, a plurality of cushioning materials extending in the circumferential direction are provided on the outer peripheral surfaces of the saw cylinder and the receiving cylinder, and the plurality of cushioning materials are provided at predetermined intervals in the axial direction of each cylinder. Yes. And it arrange | positions in zigzag form so that each buffer material provided in the receiving cylinder side may face between each buffer material provided in the saw cylinder side. At this time, since the cushioning material deteriorates with time, the cushioning material is attached to the outer peripheral surface of each cylinder via an adhesive portion provided on the back surface thereof so that the cushioning material can be replaced.

  However, in the configuration of the cutting apparatus described above, there is a possibility that each cushioning material is easily peeled off from the outer peripheral surface of each cylinder during operation of the cutting apparatus. In other words, if each cushioning material is disposed directly on the outer circumferential surface of each cylinder, the outer circumferential surface of each cylinder and each cushioning material are, for example, due to deformation (collapse) of each cushioning material when passing between the cylinders. Further, positional displacement occurs due to interlayer slip or the like, which may cause the adhesive portions of each buffer material to be easily peeled off from the outer peripheral surface of each cylinder.

  Then, this invention makes it a subject to provide the cutting device and web conveyance apparatus which can make it difficult to peel off each buffer material with respect to the outer peripheral surface of each cylinder (each roller) by simple structure.

  The cutting device of the present invention includes a cutting cylinder having a cutting blade and a cutting blade receiver for receiving the cutting blade, and a receiving member disposed so as to face the cutting cylinder across a web conveyance path through which the web is conveyed. A plurality of cutting cylinder side cushioning materials provided at predetermined intervals in the axial direction of the cutting cylinder, and the outer peripheral surface of the receiving cylinder; A plurality of cylinder-side cushioning materials provided at predetermined intervals in the axial direction of the cylinder, and a plurality of cutting cylinder-side cushioning materials and The cylinder-side cushioning material is arranged in a staggered manner so that each cylinder-side cushioning material faces between each trimming cylinder-side cushioning material, and each cushioning material is joined to the outer peripheral surface via a joint portion. A first buffer material layer, and a second buffer material layer bonded on the first buffer material layer via a bonding portion. And features.

  In this case, it is preferable that the hardness of the first buffer material layer is higher than the hardness of the second buffer material layer.

  In these cases, it is preferable that the first buffer material layer has a first divided layer provided on the outer peripheral surface side and a second divided layer that can be attached to and detached from the first divided layer.

  In this case, the first cushioning material layer is preferably a hook-and-loop fastener.

  Moreover, in these cases, it further has an intervening sheet provided between the first buffer material layer and the second buffer material layer, and the joining portion is an adhesive portion configured to be able to be stuck using an adhesive. Yes, the second cushioning material layer is attached to the front surface of the interposition sheet via an adhesive portion provided on the back surface, and the first cushioning material is provided to the back surface of the interposition sheet via the adhesive portion provided on the front surface. It is preferable that the layer is stuck and the interposition sheet is comprised so that the adhesion part of the back surface of the 2nd buffer material layer stuck on the surface can be peeled.

  The web transport device of the present invention includes a first roller, a second roller disposed so as to face the first roller across a web transport path through which the web is transported, and a circumference of an outer peripheral surface of the first roller. A plurality of first cushioning materials provided at predetermined intervals in the axial direction of the first roller, and so as to extend in the circumferential direction of the outer peripheral surface of the second roller. A plurality of second cushioning materials provided at predetermined intervals in the axial direction of the second roller, and the plurality of first cushioning materials and the plurality of second cushioning materials are respectively provided with the first cushioning materials. Each buffer material is arranged in a staggered manner so that each second buffer material faces between the materials, and each buffer material includes a first buffer material layer and a first buffer material layer bonded to each other on the outer peripheral surface via a joint portion. And a second cushioning material layer bonded to each other via a bonding portion.

  According to the cutting device of the first aspect, the first buffer material layer can be provided between the second buffer material layer and the outer peripheral surface of each cylinder. Therefore, for example, when a sponge material is used as the second buffer material layer, even if the second buffer material layer is crushed and deformed when passing between the cutting cylinder and the cylinder of the receiving cylinder, the outer peripheral surface of the cylinder and the second The positional deviation (interlayer slip) with the buffer material layer can be absorbed by the first buffer material layer. Thereby, each buffer material can be made hard to peel off with respect to each outer peripheral surface by simple structure.

  According to the cutting device of the second aspect, since the hardness of the first buffer material layer is higher than the hardness of the second buffer material layer, misalignment between each outer peripheral surface and the first buffer material layer is less likely to occur. In addition, it is possible to make it difficult for positional deviation between the first buffer material layer and the second buffer material layer to occur.

  According to the cutting device of the third aspect, since the second divided layer of the first buffer material layer can be attached to and detached from the first divided layer of the first buffer material layer, the first buffer material layer is divided. This makes it possible to easily replace the second buffer material layer. For this reason, the exchange time of a 2nd buffer material layer can be shortened. Further, even if a part of the second divided layer is detached from the first divided layer during the rotation of the cutting cylinder and the receiving cylinder, the second divided layer is separated by passing between the cutting cylinder and the receiving cylinder. A part of can be attached to the first divided layer again.

  According to the cutting device of the fourth aspect, by using a hook-and-loop fastener as the first buffer material layer, the first buffer material layer can be configured with an inexpensive hook-and-loop fastener, and thus the device cost can be suppressed. . In addition, as a hook_and_loop | surface fastener, it is preferable to use a magic tape (trademark), for example.

  According to the cutting device of claim 5, for example, when the second buffer material layer is deteriorated, the deteriorated second buffer material layer is peeled off from the interposed sheet, and a new second buffer material layer is attached to the interposed sheet. By doing so, the first buffer material layer can be reused. Thereby, since the replacement frequency of a 1st buffer material layer can be suppressed, cost reduction can be aimed at.

  According to the web conveyance device of the sixth aspect, the first buffer material layer can be provided between the second buffer material layer and the outer peripheral surface of each roller. Therefore, for example, when a sponge material is used as the second buffer material layer, even if the second buffer material layer is crushed and deformed when passing between the rollers, the outer peripheral surface of each roller and the second buffer material layer Misalignment (interlayer slip) can be absorbed by the first buffer material layer. Thereby, each buffer material can be made hard to peel off with respect to each outer peripheral surface by simple structure.

  Hereinafter, a cutting device and a web transport device according to the present invention will be described with reference to the accompanying drawings, taking the cutting device as an example. Note that the present invention is not limited to the embodiments.

  Here, FIG. 1 is a schematic configuration diagram schematically showing the periphery of the cutting apparatus of the present embodiment, and FIG. 2 is an outer peripheral surface of a saw cylinder and a receiving cylinder provided in the cutting apparatus according to the present embodiment. FIG. FIG. 3 is a partial sectional view in the axial direction of the saw cylinder and the receiving cylinder.

  First, with reference to FIG. 1 and FIG. 2, the cutting device 1 concerning a present Example is demonstrated. The cutting apparatus 1 is provided in a web transport path K through which a web W that is continuous paper is transported, and cuts the web W into a predetermined dimension in the web W transport direction. At this time, the web conveyance path K is in the horizontal direction from the upstream side (right side in the figure) to the downstream side (left side in the figure).

  A pair of nipping rollers 3 that convey the web W toward the downstream side while sandwiching the web W are disposed on the upstream side of the cutting apparatus 1 that faces the web conveyance path K. Further, on the downstream side of the cutting apparatus 1, A pair of transport conveyors 4 for transporting the cut web W is provided.

  The pair of nipping rollers 3 are each formed in a columnar shape, and the axial direction thereof is the same as the width direction of the web conveyance path K. The pair of nipping rollers 3 are disposed in contact with the upper and lower sides in the vertical direction across the web conveyance path K, and are connected to a driving device (not shown) to be rotatable. Accordingly, the pair of nipping rollers 3 sandwich the web W vertically folded in the transport direction by a triangular plate (not shown) disposed on the upstream side, and introduce the web W folded vertically into the cutting device 1. .

  The pair of transport conveyors 4 are disposed so as to face the upper side and the lower side in the vertical direction with the web transport path K interposed therebetween. Each conveyance conveyor 4 has a plurality of pulleys 7, and an endless conveyance belt 8 is stretched around the plurality of pulleys 7. And since two pulleys 7 located in the vicinity of the cutting device 1 are spaced apart from each other in the pair of transport conveyors 4, the web W that has been transported from the pair of nipping rollers 3 through the cutting device 1. Can be smoothly introduced.

  Here, the cutting device 1 will be described in detail with reference to FIG. The cutting apparatus 1 includes a saw cylinder 10 (cutting cylinder) having two saw blades 22 and a receiving cylinder 11 disposed to face the saw cylinder 10. The saw cylinder 10 and the receiving cylinder 11 are provided with the saw cylinder 10 on the upper side in the vertical direction and the receiving cylinder 11 on the lower side, with the web conveyance path K interposed therebetween. Further, the rotation axis 15 of the saw cylinder 10 and the rotation axis 16 of the receiving cylinder 11 have the same axial direction as the width direction of the web conveyance path K, and the rotation axes 15 and 16 are parallel to each other. It is arranged. At this time, the saw cylinder 10 and the receiving cylinder 11 are slightly separated from each other.

  The saw body 10 includes a saw body 20 formed in a cylindrical shape, two saw blades 22 (cutting blades) disposed on the outer peripheral surface of the saw body 20 via two saw bases 21, a saw body. A plurality of saw-cylinder-side cushioning members 23 disposed on the outer peripheral surface of the main body 20 are provided, and are connected to a driving device (not shown) so as to be rotatable. The two saw blades 21 are respectively arranged at positions opposed to each other by 180 degrees with the rotary shaft 15 of the saw body 10 interposed therebetween, and the two saw blades 22 are respectively held by the two saw blades 21.

  The saw body 20 has an outer peripheral surface in which two saw base accommodating portions 26 for accommodating the two saw bases 21 are formed so as to be immersed at positions opposed to each other by 180 degrees across the rotary shaft 15 of the saw cylinder 10. Each saw blade accommodating portion 26 is formed so as to extend in the axial direction of the saw barrel 10 and has a concave cross section.

  Each saw stand 21 accommodated in each saw stand accommodating portion 26 includes a saw stand base end portion 27 disposed on the bottom side of the saw stand accommodating portion 26, and a saw stand tip end portion 28 connected to the saw stand base end portion 27. The saw blade base end portion 27 and the saw blade tip end portion 28 are connected by a dovetail groove.

  The saw blade base end portion 27 is disposed along the axial direction of the saw barrel 10 and holds the proximal end side of the saw blade 22 at the central portion in the rotational direction of the saw barrel 10. It is fixed to the bottom of the screw. Similarly to the saw blade base end portion 27, the saw blade tip portion 28 is disposed along the axial direction of the saw body 10, and is connected to the saw blade base end portion 27 and accommodated in the saw blade accommodating portion 26. The tip end side of the saw blade 22 is held at the center of the saw barrel 10 in the rotational direction. The saw blade tip 28 is made of an elastic material such as rubber and is formed in a substantially trapezoidal cross section. The tip of the saw blade slightly protrudes from the outer peripheral surface of the saw body 20. As a result, the saw blade tip 28 is configured to be able to sandwich the web W conveyed in cooperation with a saw blade receiver 31 described later.

  Each saw blade 22 is disposed over the axial direction of the saw barrel 10 with its tip projecting from the outer peripheral surface of the saw barrel body 20, and as described above, the base of each saw blade 22 is provided. The end is supported by each saw blade 21.

  The plurality of saw-cylinder-side buffer members 23 have a rectangular cross section in the circumferential direction of the saw cylinder 10, and are disposed so as to extend in the circumferential direction of the outer peripheral surface of the saw cylinder 10. At this time, the plurality of saw-cylinder-side cushioning materials 23 are divided into two groups at positions opposed to each other by 180 degrees with the rotary shaft 15 of the saw cylinder 10 interposed therebetween. In addition, the plurality of saw cylinder side buffer members 23 of each group are provided in parallel with a predetermined interval in the axial direction of the saw cylinder 10 (see FIG. 2). The details of the plurality of saw cylinder side buffer members 23 will be described later.

  The receiving cylinder 11 includes a receiving cylinder body 30 formed in a columnar shape, two saw blade receivers 31 provided on the outer peripheral surface of the receiving cylinder body 30, and a plurality provided on the outer peripheral surface of the receiving cylinder body 30. And a receiving side cushioning member 32, which is connected to a driving device (not shown) and is rotatable. Further, the two saw blade receivers 31 are respectively disposed at positions facing each other by 180 degrees across the rotation shaft of the receiving body 30.

  The receiving body 30 has an outer peripheral surface in which the two saw blade receiving and receiving portions 36 for receiving the two saw blade receiving 31 are immersed at a position 180 degrees across the rotating shaft 16 of the receiving cylinder 11. Each saw blade receiving and receiving portion 36 is formed along the axial direction of the receiving cylinder 11 and has a concave cross section.

  Each saw blade receiver 31 accommodated in each saw blade receiver housing portion 36 is made of an elastic material such as rubber, and is received in a state where its tip is slightly projected from the outer peripheral surface of the saw body 20. It is arranged over the axial direction of the body 11.

  The plurality of receiver-side buffer members 32 have a rectangular cross section in the circumferential direction of the receiver 11, and are disposed so as to extend in the circumferential direction of the outer peripheral surface of the receiver 11. At this time, the plurality of receiver-side cushioning materials 32 are divided into two groups at positions opposed to each other by 180 degrees with the rotation shaft 16 of the receiver 11 interposed therebetween. In addition, the plurality of receiving side buffer members 32 of each group are provided in parallel with a predetermined interval in the axial direction of the receiving case 11 (see FIG. 2). At this time, the plurality of cylinder-side cushioning members 32 of each group are arranged so as to face each of the saw-cylinder-side cushioning materials 23 of each group. The side buffer materials 32 are arranged in a staggered manner so as to be staggered. In other words, a plurality of cylinder-side cushioning materials 32 are disposed so as to face a plurality of saw-cylinder-side gaps 24 formed between the respective saw-cylinder-side cushioning materials 23, and each cylinder-side cushioning material 32 is also arranged. A plurality of saw-cylinder-side cushioning materials 23 are arranged to face a plurality of receiver-side gaps 33 formed therebetween. The details of the plurality of receiver-side cushioning materials 32 will be described later.

  The receiving cylinder 11 is configured to be able to rotate in synchronization with the saw cylinder 10, and the saw cylinder 10 and the receiving cylinder 11 are rotated so that the saw blade 22 and the saw blade receiver 31 face each other. The phases are matched. For this reason, the saw cylinder 10 and the receiving cylinder 11 can cut the web W at a constant period.

  Here, the cutting operation of the web W by the saw cylinder 10 and the receiving cylinder 11 will be described. When the saw cylinder 10 and the receiving cylinder 11 are rotated synchronously in a state where the one saw blade 22 and the one saw blade receiver 31 coincide with each other, the one saw blade 22 and the one saw blade receiver 31 are connected to each cylinder 10,. The pair of nipping rollers 3 rotate in synchronism with the rotation of the saw cylinder 10 and the receiving cylinder 11. When the pair of nipping rollers 3 rotate, the leading end portion of the subsequent web W cut by the cutting device 1 is conveyed toward the pair of conveying conveyors 4. At this time, the front end portion of the web W is formed into a corrugated plate shape (tonned shape) that becomes a wave in the width direction (the axial direction of each cylinder) by the plurality of saw cylinder side buffer members 23 and the plurality of cylinder side buffer members 32. It is formed. Thereby, the stiffness (rigidity) of the web W is improved in the conveyance direction of the web W, and the conveyance posture of the web W can be appropriately maintained along the web conveyance path K. Thereafter, the leading end of the web W is clamped by the pair of conveyors 4. Then, the synchronously rotating saw cylinder 10 and the receiving cylinder 11 are aligned so that the other saw blade 22 and the other saw blade receiver 31 circulate around each of the cylinders 10 and 11 to face each other. Cutting in the width direction of the web conveyance path K with a predetermined dimension.

  By the way, during the operation of the cutting apparatus 1, the cushioning materials 23 and 32 provided on the outer peripheral surfaces of the cylinders 10 and 11 are crushed and deformed each time they pass between the cylinders of the saw cylinder 10 and the receiving cylinder 11. . At this time, if each buffer material 23, 32 is deformed, there may be a displacement between the outer peripheral surface of each cylinder 10, 11 and each buffer material 23, 32 due to interlayer slip or the like. The buffer materials 23 and 32 are easily peeled off from the outer peripheral surfaces 10 and 11. Therefore, in the present embodiment, each buffer material 23, 32 is provided with a first buffer material layer 40 and a second buffer material layer 42, which will be described later, so that each buffer material 23, 32 is configured to be difficult to peel off. Hereinafter, with reference to FIG. 3, the plurality of saw-cylinder-side cushioning materials 23 and the plurality of receiver-side cushioning materials 32 will be described in detail.

  As shown in FIG. 3, each saw-cylinder-side cushioning material 23 and each receiving-cylinder-side cushioning material 32 have a three-layer structure, and the first cushioning material layer 40 is sequentially formed from the outer peripheral surface side of each of the barrels 10 and 11. And an intervening sheet 41 and a second cushioning material layer 42.

  The first buffer material layer 40 is a hook-and-loop fastener composed of a female side fastener 45 (first divided layer) and a male side fastener 46 (second divided layer), and is, for example, a well-known magic tape (registered trademark). is there. That is, the first buffer material layer 40 can be divided in the circumferential direction, and the female side fastener 45 is disposed on the outer peripheral surface side, and the male side fastener 46 that is detachable from the female side fastener 45 is provided. It is arranged. At this time, the first cushioning material layer 40 is configured to be able to absorb the displacement of the male side fastener 46 with respect to the female side fastener 45 within the mounting surface of the female side fastener 45 and the male side fastener 46. In addition, since the first cushioning material layer 40 is formed of a hook-and-loop fastener, even if the male side fastener 46 is peeled off from the female side fastener 45, the female side fastener 45 and the male side fastener 46 are overlapped. The male side fastener 46 can be easily attached to the female side fastener 45 by pressing the male side fastener 46 to the female side fastener 45 in the state. In this embodiment, the first divided layer is the female side fastener 45 and the second divided layer is the male side fastener 46. Instead, the first divided layer is the male side fastener 46 and the second divided layer is the second divided layer. The female side fastener 45 may be used. At this time, the hardness of the first buffer material layer 40 is higher than the hardness of the second buffer material layer 42.

  In addition, a first back surface adhesive portion 50 made of double-sided tape is provided on the back surface of the first buffer material layer 40, that is, the surface of the female side surface fastener 45 that contacts the outer peripheral surface. The first surface adhesive portion 51 made of double-sided tape is provided on the surface of the male side fastener 46, that is, the surface of the male side fastener 46 that contacts the intervening sheet 41. The first cushioning material layer 40 is adhered to the outer peripheral surface via the first back surface adhesive portion 50 of the female side surface fastener 45 and the interposed sheet 41 via the first surface adhesive portion 51 of the male side surface fastener 46. Affixed to the back side.

  The second buffer material layer 42 is made of, for example, a sponge material and is crushed and deformed when passing between the cylinders of the saw cylinder 10 and the receiving cylinder 11 and restored to its original shape after passing between the cylinders. It is possible. The second buffer material layer 42 is provided with a plurality of cuts 53 at predetermined intervals in the circumferential direction so that the second buffer material layer 42 can be disposed along the outer peripheral surface of each of the cylinders 10 and 11. A second back surface adhesive portion 52 is provided on the back surface of the second buffer material layer 42, that is, the surface of the second buffer material layer 42 that contacts the interposition sheet 41. It is stuck to the surface of the intervening sheet 41 via the second back surface adhesive portion 52.

  The intervening sheet 41 is made of, for example, an OHP film, and is interposed between the first buffer material layer 40 and the second buffer material layer 42. Further, as described above, the male side surface fastener 46 is attached to the back surface of the interposition sheet 41 via the first front surface adhesive portion 51, and the surface of the interposition sheet 41 is interposed via the second back surface adhesive portion 52. The 2nd buffer material layer 42 is stuck. At this time, the intervening sheet 41 is configured to be able to peel the second back surface adhesive portion 52 of the second buffer material layer 42 attached to the surface thereof, and the first surface of the male side surface fastener 46 attached to the back surface thereof. The adhesive portion 51 is configured to be peelable.

  Here, the state change of each buffer material 23, 32 at the time of passage between the cylinders of the plurality of saw-cylinder-side buffer members 23 and the plurality of receiver-side buffer members 32 configured as described above will be described. When the saw cylinder 10 and the receiving cylinder 11 are rotated so that the respective saw cylinder side cushioning materials 23 and the respective receiving cylinder side cushioning materials 32 face each other between the saw cylinder 10 and the receiving cylinder 11, the respective saw cylinder side cushioning materials 23 and Each cylinder-side cushioning material 32 is crushed and deformed when passing between the cylinders. Specifically, the second cushioning material layer 42 of each cushioning material 23, 32 is crushed and deformed, and due to this deformation, a positional deviation is caused between the second cushioning material layer 42 and the outer peripheral surface of each barrel 10, 11. May occur. At this time, the first buffer material layer 40 can absorb this positional shift. That is, it is possible to absorb the positional deviation by allowing the interlayer slip due to the crushing deformation of the second buffer material layer 42 between the female side fastener 45 and the male side fastener 46. For this reason, each buffer material 23 and 32 becomes difficult to peel from an outer peripheral surface. Further, during the rotation of the saw cylinder 10 and the receiving cylinder 11, even if a part of the male side fastener 46 is peeled off from the female side fastener 45, it passes between the saw cylinder 10 and the receiving cylinder 11. A part of the detached male side fastener 46 can be attached to the female side fastener 45 again.

  Next, a series of procedures for exchanging the second buffer material layer 42 in the above configuration will be described. When replacing the second buffer material layer 42 that has deteriorated over time, first, the male side fastener 46 is secondly attached from the female side fastener 45 attached to the outer peripheral surfaces of the saw cylinder 10 and the receiving cylinder 11 that have stopped rotating. The buffer material layer 42 and the intervening sheet 41 are peeled off. Subsequently, the deteriorated second buffer material layer 42 is peeled off from the interposition sheet 41, and then a new second buffer material layer 42 is attached to the interposition sheet 41. Then, the male side fastener 46 to which the new second buffer material layer 42 is attached via the interposition sheet 41 is attached to the female side fastener 45 attached to the outer peripheral surfaces of the saw cylinder 10 and the receiving cylinder 11. Thereby, replacement | exchange of the 2nd buffer material layer 42 provided in the saw cylinder 10 and the receiving cylinder 11 can be performed easily. In addition, after preparing the male side surface fastener 46 to which the new 2nd shock absorbing material layer 42 was stuck separately, and peeling off the male side surface fastener 46 to which the deteriorated 2nd shock absorbing material layer 42 was stuck, separately The prepared male side surface fastener 46 may be attached, and then the second cushioning material layer 42 of the peeled male side surface fastener 46 may be replaced.

  According to the above configuration, even when the second buffer material layer 42 is crushed and deformed when passing between the cylinders of the saw cylinder 10 and the receiving cylinder 11, the outer peripheral surface of each cylinder 10, 11 and the second buffer material layer 42. Can be absorbed by the first buffer material layer 40, so that the buffer materials 23 and 32 can be made difficult to peel off from the outer peripheral surface with a simple configuration.

  In addition, since the hardness of the first buffer material layer 40 is higher than the hardness of the second buffer material layer 42, it is possible to make it difficult for positional deviation between each outer peripheral surface and the first buffer material layer 40 to occur. It is possible to make it difficult for positional deviation between the first buffer material layer 40 and the second buffer material layer 42 to occur.

  Furthermore, since the 1st shock absorbing material layer 40 can be comprised with an inexpensive surface fastener by using a hook_and_loop | surface fastener as the 1st shock absorbing material layer 40, apparatus cost can be suppressed. Moreover, since the male side surface fastener 46 of the first buffer material layer can be attached to and detached from the female side surface fastener 45 of the first buffer material layer 40, the first buffer material layer 40 can be divided. Thus, the second buffer material layer 42 can be easily replaced. For this reason, the exchange time of the 2nd buffer material layer 42 can be shortened.

  Further, when the second buffer material layer 42 is deteriorated, the second buffer material layer 42 deteriorated from the interposition sheet 41 is peeled off, and a new second buffer material layer 42 is adhered to the interposition sheet 41 to thereby One buffer material layer 40 can be reused. Thereby, since the replacement frequency of the 1st buffer material layer 40 can be suppressed, cost reduction can be aimed at.

  In the present embodiment, a hook-and-loop fastener is used as the first buffer material layer 40, but instead of this, an elastic body such as a rubber plate may be used as long as it functions as a buffer material. In this case, it is preferable that the first buffer material layer 40 is configured to be detachable in consideration of the ease of replacement of the second buffer material layer 42. Moreover, although the 1st buffer material layer 40 was stuck and fixed to the outer peripheral surface of each trunk | drum 10 and 11 via the 1st back surface adhesion part 50, you may fix with a volt | bolt etc.

  In this embodiment, the cutting apparatus 1 has been described as an example. However, the cutting apparatus 1 may be applied to a web conveyance apparatus having a pair of rollers for conveying the web W. That is, although not shown in the drawings, a pair of rollers may be used in place of the saw cylinder 10 and the receiving cylinder 11 of the cutting apparatus 1, and the cushioning materials 23 and 32 may be disposed on the outer peripheral surface of each roller. .

  As described above, the cutting device and the web conveyance device according to the present invention are useful for a configuration constituted by a saw cylinder and a receiving cylinder (a pair of rollers) serving as a rotating body, and in particular, each cylinder (each roller). This is suitable when a plurality of cushioning materials are provided on the outer peripheral surface.

It is the schematic which represented typically the cutting device periphery which concerns on a present Example. It is the schematic diagram showing the outer peripheral surface of the saw cylinder provided in the cutting apparatus which concerns on a present Example, and a receiving cylinder. It is a fragmentary sectional view in the axial direction of a saw cylinder and a receiving cylinder.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cutting device 10 Saw cylinder 11 Receptor 22 Saw blade (cutting blade)
23 Cushion side buffer material 24 Saw cylinder side gap 31 Saw blade receiver 32 Cylinder side buffer material 33 Cylinder side gap 40 First buffer material layer 41 Intervening sheet 42 Second buffer material layer 45 Female side surface fastener 46 Male side surface fastener 50 1st back surface adhesion part 51 1st surface adhesion part 52 2nd back surface adhesion part 53 Cut W Web K Web conveyance path

Claims (6)

A cutting cylinder having a cutting blade;
A receiving cylinder that has a cutting blade receiver that receives the cutting blade and that is disposed so as to face the cutting cylinder across a web conveyance path through which a web is conveyed,
A plurality of cutting cylinder side cushioning materials provided to extend in the circumferential direction of the outer peripheral surface of the cutting cylinder, and provided with a predetermined interval in the axial direction of the cutting cylinder;
A plurality of receiver-side cushioning materials provided so as to extend in the circumferential direction of the outer peripheral surface of the receiver, and provided at predetermined intervals in the axial direction of the receiver;
The plurality of cutting cylinder side cushioning materials and the plurality of receiving cylinder side cushioning materials are arranged in a staggered manner so that each of the receiving cylinder side cushioning materials faces between the respective cutting cylinder side cushioning materials,
Each of the buffer materials includes a first buffer material layer bonded to the outer peripheral surface via a bonding portion, and a second buffer material layer bonded to the first buffer material layer via a bonding portion. A cutting device characterized by having.   The cutting device according to claim 1, wherein the hardness of the first buffer material layer is higher than the hardness of the second buffer material layer.   The first buffer material layer includes a first divided layer provided on the outer peripheral surface side, and a second divided layer that can be attached to and detached from the first divided layer. Item 3. The cutting device according to Item 1 or 2.   The cutting device according to claim 3, wherein the first buffer material layer is a surface fastener. An intervening sheet provided between the first buffer material layer and the second buffer material layer;
The joining portion is an adhesive portion configured to be capable of being attached using an adhesive,
The second cushioning material layer is attached to the front surface of the interposition sheet via the adhesive portion provided on the back surface, and the back surface of the interposition sheet is provided with the adhesive portion provided on the surface via the adhesive portion. The first cushioning material layer is attached,
The said interposition sheet is comprised so that peeling of the said adhesion part of the back surface of the said 2nd buffer material layer stuck on the surface is possible, The any one of Claim 1 thru | or 4 characterized by the above-mentioned. Cutting device. A first roller;
A second roller disposed to face the first roller across a web conveyance path through which the web is conveyed;
A plurality of first cushioning materials provided to extend in the circumferential direction of the outer peripheral surface of the first roller, and provided at predetermined intervals in the axial direction of the first roller;
A plurality of second cushioning materials provided so as to extend in the circumferential direction of the outer peripheral surface of the second roller, and provided at predetermined intervals in the axial direction of the second roller,
The plurality of first buffer materials and the plurality of second buffer materials are arranged in a staggered manner so that the second buffer materials face each other between the first buffer materials,
Each of the buffer materials includes a first buffer material layer bonded to the outer peripheral surface via a bonding portion, and a second buffer material layer bonded to the first buffer material layer via a bonding portion. A web conveyance device comprising:

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