JP2015027781A - Manufacturing apparatus and manufacturing method of sheet material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable an efficient production, by using the least expensive facility possible, of a sheet material having partially different processed states and used for manufacturing wire harness protective materials for automotive wire harnesses.SOLUTION: The provided manufacturing apparatus 30 of a sheet material manufactures, by using a sheet material 19 which can be processed to bear high rigidity as a result of the compression thereof in a high-temperature state, a sheet material having been processed to bear partially different processed states. This manufacturing apparatus 30 includes: a pair of rollers 40 provided by forming the outer circumferential surface of at least either to bear an uneven shape and arranged to be able to continuously nip the sheet material 19 amidst a transport passage P for continuously transporting the sheet material 19; and a heating mechanism 60 for heating the sheet material 19 leastwise at one position selected from between at the position where the sheet material 19 is nipped by the pair of rollers 40 and a position on the upstream side of the first position along the transport passage P of the sheet material 19.

Description

  The present invention relates to a technique for manufacturing sheet materials partially different in processing state.

  As a wire harness protective material for a wire harness for automobiles, there is one in which a nonwoven fabric containing a basic fiber and a binder having a melting point lower than that of the basic fiber is heated and compressed to give rigidity.

  As a method for producing the wire harness protective material, as disclosed in Patent Document 1, a non-woven fabric wound around a wire bundle is set in a mold, and the nonwoven fabric is heated and compressed in the mold. There is a method of cooling the mold and taking out the product.

  Patent Document 2 discloses a technique in which a laminate in which reinforcing sheets are arranged on both surfaces of a base material is fed into a heating furnace, then pressed between a pair of rolls, and then fed into a cooling device. Is disclosed.

JP 2013-73896 A JP 2003-71958 A

  According to the method disclosed in Patent Document 1, since the non-woven member and the mold can be cooled and the non-woven member can be set in the mold, the operator can securely set the non-woven member and the wire bundle in the mold. There is an advantage that the set operation can be performed while confirming whether or not it has been completed.

  Also, if the mold surface is recessed and a partial gap is provided between the mold and the non-woven member so that heat is not easily transmitted to the non-woven member, There is also an advantage that a portion that is more flexible than the cured portion can be easily made.

  However, according to the method disclosed in Patent Document 1, it is necessary to heat and cool a mold having a relatively large heat capacity every time one wire harness protective material is manufactured. For this reason, processing time will become long and productivity per processing facility will worsen.

  On the other hand, after the non-woven member is wound around the wire bundle, the non-woven member is preheated to a temperature equal to or higher than the melting point of the binder by hot air or the like, and this is set in a low temperature mold so that the non-woven member is cooled. A method of taking out the non-woven member formed into a predetermined shape after curing is also conceivable.

  In this method, since the non-woven member heated in advance is only cooled by a mold having a relatively large heat capacity, the processing time can be shortened and the productivity per processing facility is excellent.

  However, in this method, it is necessary to set the non-woven member that has become hot due to heating in the mold, so whether or not the operator can reliably set the non-woven member and the electric wire bundle in the mold manually. It is difficult to perform the setting work on the mold while confirming the above. Also, if a dedicated transport facility for setting the non-woven members that have become high temperature one by one in the mold is prepared, the equipment cost increases.

  Then, this invention makes it possible to manufacture efficiently the sheet | seat material used in order to manufacture the wire harness protective material of the wire harness for motor vehicles, etc. with a partially different processing state as much as possible with cheap facilities. Objective.

  In order to solve the above-described problem, the first aspect uses a sheet material that can be processed with high rigidity by being compressed in a high-temperature state, and manufactures a sheet material that is partially processed to have a different processing state. An apparatus for manufacturing a sheet material, wherein at least one outer peripheral surface is formed in an uneven shape, and the sheet material is continuously sandwiched in the middle of a conveyance path in which the sheet material is continuously conveyed A pair of rollers arranged in a possible manner, a position where the sheet material is sandwiched between the pair of rollers, and at least one position on the upstream side of the transport path of the sheet material from the position. A heating mechanism for heating.

  A 2nd aspect is a manufacturing apparatus of the sheet | seat material which concerns on a 1st aspect, Comprising: The recessed part for non-compression is formed in at least one of a pair of said roller.

  3rd aspect is a manufacturing apparatus of the sheet | seat material which concerns on 2nd aspect, Comprising: The said non-compression recessed part is continuously formed along the circumferential direction in the outer peripheral surface of the at least one side of a pair of said roller. It is formed in a groove shape.

  A fourth aspect is a sheet material manufacturing apparatus according to any one of the first to third aspects, wherein a concave-convex shape forming recess is formed on one of the pair of rollers, and the pair of rollers The convex part for uneven | corrugated shape formation is formed in the other side of this, and the position facing the said concave part for uneven | corrugated shape formation.

  A fifth aspect is a sheet material manufacturing apparatus according to the fourth aspect, wherein the concave / convex shape forming recess is formed to be continuous in the circumferential direction of the one roller, and the pair of rollers A pair of protrusions for forming the concavo-convex shape are formed so as to be continuous in the circumferential direction of the other roller, and are adjacent to each other in the axial direction of the other roller. A pair of the sheet material is sandwiched between the pair of concave / convex shape forming concave portions and the pair of concave / convex shape forming convex portions, so that the semi-cylindrical portions are arranged in parallel. The sheet is processed.

  A sixth aspect is a sheet material manufacturing apparatus according to the fifth aspect, wherein a plurality of pairs of the pair of concave and convex shape forming recesses are formed on the one roller, and the pair of concave parts is formed on the other roller. A plurality of concave / convex shape forming convex portions are formed, and each of the pair of concave / convex shape forming concave portions and the pair of concave / convex shape forming convex portions are positioned between the pair of concave and convex shape forming convex portions. A partial cutting blade for partially cutting between the protective material forming sheet portions is provided.

  A seventh aspect is a sheet material manufacturing apparatus according to any one of the fourth to sixth aspects, wherein the concave / convex shape forming recesses are partially formed along one of the pair of rollers along a circumferential direction thereof. Is formed, and the convex / concave portion for forming concave / convex shape is formed at a position opposite to the concave portion for forming concave / convex shape, which is the other of the pair of rollers.

  An eighth aspect is a sheet material manufacturing apparatus according to any one of the first to seventh aspects, wherein the heating mechanism is configured such that the sheet material is located at a position more than a position where the sheet material is sandwiched between the pair of rollers. A first heating mechanism for heating the sheet material at a position upstream of the material conveyance path is included.

  A ninth aspect is a sheet material manufacturing apparatus according to the eighth aspect, wherein the pair of rollers are configured to be capable of cooling the sheet material.

  A tenth aspect is a sheet material manufacturing apparatus according to the eighth aspect, wherein the heating mechanism includes a second heating mechanism for heating the pair of rollers.

  An eleventh aspect is a sheet material manufacturing apparatus according to the tenth aspect, wherein the sheet material is located at a position downstream of the sheet material conveyance path from a position where the sheet material is sandwiched between the pair of rollers. A cooling mechanism for cooling the sheet material is further provided.

  A twelfth aspect is the sheet material manufacturing apparatus according to the eleventh aspect, wherein the cooling mechanism includes at least one of the pair of rollers and at least one of the sheet materials fed from the pair of rollers. It includes at least one plate-like member which is provided between the main surface and formed so as to become thin sequentially toward the contact portion.

  A thirteenth aspect is a sheet material manufacturing apparatus according to the eleventh aspect, wherein the cooling mechanism sandwiches the sheet material downstream of the sheet material conveyance path with respect to the pair of rollers. A roller-type cooling mechanism including a pair of subsequent rollers and cooling the sheet material by the pair of subsequent rollers is provided.

  A fourteenth aspect is a sheet material manufacturing apparatus according to the thirteenth aspect, in which a concave / convex forming subsequent concave portion is formed in one of the pair of subsequent rollers and the other of the pair of subsequent rollers. In this way, the concave / convex shape forming convex portion is formed at a position facing the concave / convex shape forming concave portion.

  A fifteenth aspect is the sheet material manufacturing apparatus according to the fourteenth aspect, wherein the concave-convex-shaped subsequent concave part is partially formed along one of the pair of subsequent rollers along the circumferential direction. The concave / convex shape forming subsequent convex portion is formed at a position opposite to the concave / convex shape forming subsequent concave portion, which is the other of the pair of subsequent rollers.

  A sixteenth aspect is a sheet material manufacturing apparatus according to any one of the thirteenth to fifteenth aspects, wherein the sheet material is heated between the pair of rollers and the pair of subsequent rollers. A heating unit is further provided.

  A seventeenth aspect is a sheet material manufacturing apparatus according to the sixteenth aspect, in which the intermediate heating unit is configured such that when the sheet material conveyed along the conveyance path is viewed in plan, Of these, a region overlapping at least one of the pair of rollers and the pair of subsequent rollers is heated.

  An eighteenth aspect is a sheet material manufacturing apparatus according to any one of the first to seventeenth aspects, wherein a part of the circumferential surface of a cylindrical outer peripheral surface that can be rotated along with conveyance of the sheet material It is provided so as to extend along the axial direction, and is pressed against the sheet material at intervals of one point as the sheet material is conveyed at a position downstream of the pair of rollers in the conveyance path of the sheet material. A cutting blade for cutting the sheet material is further provided.

  A nineteenth aspect is a sheet material manufacturing apparatus according to any one of the first to eighteenth aspects, wherein a part of the circumferential surface of a cylindrical outer peripheral surface that can be rotated along with the conveyance of the sheet material The sheet material is provided so as to extend along the axial direction, and is pressed against the sheet material as the sheet material is conveyed at a position downstream of the pair of rollers in the conveyance path of the sheet material, and is folded on the sheet material. A crease forming blade for forming an eye is further provided.

  A twentieth aspect is the sheet material manufacturing apparatus according to the nineteenth aspect, wherein the cutting blade and the crease forming blade are provided on a common cylindrical outer peripheral surface.

  A twenty-first aspect is a method for manufacturing a sheet material, which uses a sheet material that can be processed with high rigidity by being compressed in a high-temperature state, and manufacturing a sheet material that is partially different in processing state, (a) A step of heating the sheet material; and (b) a step of feeding the sheet material that has been heated to a high temperature by a pair of rollers formed so that at least one outer peripheral surface has an uneven shape. And comprising.

  According to the sheet material manufacturing apparatus according to the first aspect, when the sheet material that has been heated to a high temperature is sandwiched between a pair of rollers, the sheet material is formed by the uneven shape formed on at least one outer peripheral surface. However, it can be processed in a partially different compressed state continuously. Thereby, the sheet material processed so that the processing state may be partially different can be efficiently manufactured with as cheap an equipment as possible.

  According to the second aspect, the sheet material can be processed with high rigidity in other portions while the sheet material is kept in a flexible state in the non-compressing recess. As a result, the sheet material partially formed with high rigidity can be efficiently manufactured with equipment as inexpensive as possible.

  According to the 3rd aspect, the sheet | seat material in which a flexible part continues linearly can be manufactured easily.

  According to the 4th aspect, the sheet material which has uneven | corrugated shape can be manufactured by pinching | interposing a sheet material between the recessed part for uneven | corrugated shape formation, and the convex part for uneven | corrugated shape formation.

  According to the 5th aspect, sheet material can be processed into the protective material formation sheet part in which the semi-cylindrical part was arranged in parallel. And the wire harness protective material which can accommodate a wire harness can be comprised by uniting a semi-cylindrical part.

  According to the 6th aspect, the several sheet | seat part for protective material formation can be manufactured efficiently. In addition, since a plurality of adjacent protective material forming sheet portions can be in a state of being connected by a portion left uncut by the partial cutting blade, the plurality of protective material forming sheet portions can be efficiently stored. Can be transported. And when forming the wire harness protective material from the protective material forming sheet part, the adjacent protective material forming sheet parts are easily cut along a line partially cut by the partial cutting blade. The wire harness protective material can be efficiently manufactured.

  According to the 7th aspect, an intermittent uneven | corrugated shaped part can be formed with respect to a sheet | seat material.

  According to the eighth aspect, the sheet material can be sufficiently heated before the sheet material is sandwiched between the pair of rollers.

  According to the ninth aspect, the sheet material can be rapidly cooled.

  According to the tenth aspect, when the sheet material is heated to a certain temperature by the first heating mechanism and the sheet material is sandwiched between the pair of rollers, the portion of the sheet material that is compressed by the pair of rollers is heated to a higher temperature. For example, it can be heated to a high temperature suitable for processing with high rigidity.

  According to the eleventh aspect, since the sheet material can be cooled by the cooling mechanism after the sheet material is sandwiched between the pair of rollers and heated by the second heating mechanism, the portion of the sheet material to be processed flexibly Can be prevented from being hardened by preheating.

  According to the twelfth aspect, the sheet material can be cooled while peeling off at least one of the pair of rollers and the sheet material by the plate-like member.

  According to the thirteenth aspect, since the sheet material can be cooled while being sandwiched by a pair of subsequent rollers, the sheet material can be cooled more rapidly.

  According to the fourteenth aspect, by processing the sheet material into a concavo-convex shape by the concavo-convex-forming subsequent convex portion and the concave-convex-forming subsequent concave portion of the pair of subsequent rollers, the concavo-convex shape portion is cooled to ensure a certain shape. Can be maintained.

  According to the 15th aspect, an intermittent uneven | corrugated shaped part can be formed with respect to a sheet | seat material.

  According to the sixteenth aspect, since the sheet material is drawn from between the pair of rollers and then heated and then fed to the pair of subsequent rollers, the temperature of the sheet material at the pair of rollers does not have to be so high. In addition, the sheet material can be processed with high rigidity by being sandwiched between a pair of subsequent rollers.

  In particular, when a non-compression recess is formed in at least one of the pair of rollers and a non-compression roller is formed in at least one of the pair of subsequent rollers, the sheet material is divided into a hard part and a soft part. In some cases, it is effective in that they can be clearly created.

  According to the seventeenth aspect, the sheet material can be effectively heated between the pair of rollers and the pair of subsequent rollers.

  According to the eighteenth aspect, the processed sheet material can be easily cut at regular intervals by the cutting blade.

  According to the nineteenth aspect, a fold can be easily formed on the processed sheet material by the fold forming blade.

  According to the twentieth aspect, cutting and crease formation can be realized with a simple configuration.

  According to the method for manufacturing a sheet material according to the twenty-first aspect, when the sheet material that has been heated to a high temperature is sandwiched between a pair of rollers, the sheet material is formed by the concavo-convex shape formed on at least one outer peripheral surface. However, it can be processed in a partially different compressed state continuously. Thereby, the sheet | seat processed so that the processing state may differ partially can be efficiently manufactured with an inexpensive equipment as much as possible.

It is a perspective view which shows an example of the sheet material used as manufacture object. It is a perspective view which shows a wire harness protective material. It is a perspective view which shows the other example of a sheet | seat material. It is a perspective view which shows the other example of a sheet | seat material. It is a schematic perspective view which shows the manufacturing apparatus of the sheet material which concerns on 1st Embodiment. It is explanatory drawing which shows the state which pinched | interposed the sheet material with a pair of roller. It is a schematic perspective view which shows the manufacturing apparatus of the sheet material which concerns on a modification. It is explanatory drawing which shows the state which pinched | interposed the sheet material with a pair of roller. It is a schematic perspective view which shows the manufacturing apparatus of the sheet material which concerns on 2nd Embodiment. It is explanatory drawing which shows the state which pinched | interposed the sheet material with a pair of roller. It is a schematic perspective view which shows the manufacturing apparatus of the sheet material which concerns on 3rd Embodiment. It is a schematic perspective view which shows the manufacturing apparatus of the sheet material which concerns on 4th Embodiment. It is explanatory drawing which shows the state which pinched | interposed the sheet material with a pair of subsequent roller. It is a schematic perspective view which shows the manufacturing apparatus of the sheet material which concerns on 5th Embodiment. It is a schematic perspective view which shows the manufacturing apparatus of the sheet material which concerns on 6th Embodiment. It is a schematic perspective view which shows the manufacturing apparatus of the sheet material which concerns on 7th Embodiment. It is a partial schematic plan view of a manufacturing apparatus same as the above. It is a partial schematic side view of a manufacturing apparatus same as the above. It is a figure which shows the temperature change of the sheet material in each position of a conveyance path. It is explanatory drawing which shows the state with which the wire harness protective material which concerns on 8th Embodiment was mounted | worn with the wire harness. It is a perspective view which shows the sheet material which concerns on embodiment same as the above. It is a schematic perspective view which shows the manufacturing apparatus of the sheet material which concerns on embodiment same as the above. It is a perspective view which shows a partial cutting blade. It is a schematic sectional drawing in the XXIV-XXIV line | wire of FIG.

  The sheet material manufacturing apparatus and method according to the embodiment will be described below.

{About sheet materials}
For convenience of explanation, the sheet material 10 to be manufactured and the wire harness protection material 20 manufactured from the sheet material 10 will be described. FIG. 1 is a perspective view showing a sheet material 10, and FIG. 2 is a perspective view showing a wire harness protection material 20.

  The sheet material 10 is a sheet that is processed so that the processing state is partially different by processing a sheet material that can be processed with high rigidity by being compressed in a high temperature state. A mode in which the processing state is partially different includes a mode in which a portion processed with high rigidity and a portion kept in a more flexible state than this portion, a certain portion (between a flat portion or an uneven portion, etc.) On the other hand, there may be mentioned an embodiment in which an uneven portion protruding toward one main surface (depressed when viewed from the other main surface) is formed.

  As such a sheet material, it is preferable to use a non-woven sheet material which is a sheet material in which a plurality of fibers are entangled without being woven and which can be processed so that at least a part thereof is melted by heating to exhibit high rigidity.

  Specifically, as the nonwoven sheet material, a material containing intertwined basic fibers and an adhesive resin (also called a binder) can be used. The adhesive resin is a resin having a melting point lower than the melting point of the basic fiber. Then, by heating the nonwoven sheet material to a temperature lower than the melting point of the basic fiber and higher than the melting point of the adhesive resin, the adhesive resin melts and soaks between the basic fibers. Thereafter, when the nonwoven sheet material is at a temperature lower than the melting point of the adhesive resin, the adhesive resin is solidified in a state where the basic fibers are bonded to each other. Thereby, the nonwoven material becomes harder than the state before heating. Further, when the nonwoven sheet material is compressed in a state where the adhesive resin is melted, the nonwoven sheet material is maintained in a predetermined molded shape at the time of compression.

  The adhesive resin may be granular or fibrous. An adhesive resin layer may be formed on the outer periphery of the core fiber to form a binder fiber, which may be entangled with the basic fiber. As the core fiber in this case, the same material as the basic fiber can be used.

  As said basic fiber, what is necessary is just to be able to maintain a fiber state with melting | fusing point of adhesive resin, and various fibers other than a resin fiber can be used. As the adhesive resin, thermoplastic resin fibers having a melting point lower than that of the basic fiber can be used. Examples of the combination of the basic fiber and the adhesive resin include an example in which the basic fiber is a resin fiber of PET (polyethylene terephthalate) and the adhesive resin is a copolymer resin of PET and PEI (polyethylene isophthalate). In this case, the melting point of the basic fiber is larger than the melting point of the adhesive resin. Therefore, when the non-woven material is heated to a temperature between the melting points, the adhesive resin melts and remains between the basic fibers that keep the fiber shape without melting. Soak. When the nonwoven material is at a temperature lower than the melting point of the adhesive resin, the adhesive resin is solidified in a state where the basic fibers are bonded to each other, and the nonwoven material becomes hard and maintains the molded shape during heating. That is, when the nonwoven sheet material is molded into a predetermined shape corresponding to the predetermined surface and cooled by sandwiching and compressing the nonwoven sheet material at a high temperature between the predetermined surfaces, the molding Maintained in the shape.

  The sheet material 10 is formed by compressing the non-woven sheet material in a high temperature state, and is processed so that the processing state is partially different in the following manner.

  That is, the sheet material 10 is formed in a rectangular shape, here, a rectangular plate shape that is long in one direction.

  A plurality of (here, five) flexible portions 12 are formed at intervals in the longitudinal direction of the sheet material 10, and the other portions have higher rigidity (harder here) than the flexible portions 12. 14 is formed. The high-rigidity portion 14 is formed by sandwiching and compressing a non-woven sheet material under a temperature condition higher than the melting point of the binder. The high-rigidity portion 14 is a portion that can maintain a predetermined shape after processing, here, a flat plate shape. The flexible portion 12 is a portion formed by compressing the non-woven sheet material with a lower degree of compression or not compressing the high-rigidity portion 14 when the high-rigidity portion 14 is processed, and is relatively flexible. It is the part that is maintained while maintaining the state. The binder contained in the flexible portion 12 was partially melted when the high-rigidity portion 14 was heated by reducing the degree of compression with respect to the flexible portion 12 of the non-woven sheet material or not compressing it. Even so, the flexible portion 12 remains more flexible than the highly rigid portion 14.

  Each flexible portion 12 is formed in an elongated region portion formed over the entire width direction of the sheet material 10.

  Further, linear rib portions 16 are formed in the highly rigid portion 14 of the sheet material 10 along the longitudinal direction of the sheet material 10. Here, in a state where the sheet material 10 is assembled to the wire harness protection material 20, the rib portions 16 are formed along both side portions of the portion forming the bottom portion 22 of the high-rigidity portion 14. The rib portion 16 is a concave-convex shape portion that is linearly recessed on one main surface side of the sheet material 10 and protrudes linearly on the other main surface of the sheet material 10. Here, the rib part 16 is formed in a shape in which a cross section perpendicular to the longitudinal direction forms a V shape. The rib portion 16 serves to reinforce the bottom portion 22 so that the bottom portion 22 of the high-rigidity portion 14 is difficult to bend.

  Further, the sheet material 10 is formed with a linear fold 18 along the longitudinal direction thereof. The fold line 18 is formed by, for example, partially cutting from the one main surface side of the sheet material 10 to a position before reaching the other main surface. Here, the fold 18 is formed in the high-rigidity portion 14 and the flexible portion 12, but may be formed only in the high-rigidity portion 14. In addition to the above configuration, the fold may be formed by a perforation in which cuts are intermittently formed along the extending direction.

  A plurality (four in this case) of the folds 18 are formed at intervals in the width direction of the sheet material 10. Specifically, in a state where the wire harness protection material 20 is assembled from the sheet material 10, between each of the bottom portion 22 and both side wall portions 24, 25, between one side wall portion 24 and its outer mating piece 26. A fold 18 is formed between the other side wall 25 and the outer lid 28.

  By folding the sheet material 10 at the fold line 18, the wire harness protective material 20 that can be protected in a state of covering the wire harness WH is formed (see FIG. 2).

  That is, when the sheet material 10 is folded at a right angle at a crease 18 between the bottom portion 22 and both side wall portions 24 and 25, the half-square cylindrical protection in which the side wall portions 24 and 25 are erected on both sides of the bottom portion 22. A main body 21 is formed.

  Further, the fold 18 extending outwardly to the edge of the one side wall 24 is formed by folding the fold 18 between the one side wall 24 and the outer mating piece 26 at a right angle outwardly. Is formed. The fold line 18 is a portion where the outer edge portion of the lid portion 28 is overlapped, and may be folded inside the protective main body portion 21.

  Moreover, the cover part 28 which can be arrange | positioned so that the upper opening of the protection main body part 21 may be closed is formed by folding the crease | fold 18 between the other side wall part 25 and the cover part 28 of the outer side.

  Then, in a state where the wire harness WH is accommodated in the protective main body 21, the upper opening of the protective main body 21 is closed by the lid 28, and the outer edge of the lid 28 is overlapped with the mating piece 26. In this state, when the outer edge portion of the lid portion 28 and the mating piece 26 are joined by heat welding, ultrasonic welding, double-sided tape, or the like, the wire harness protection material 20 accommodates the wire harness WH in the wire harness WH. It is assembled.

  The mating piece 26 may be omitted, and the lid portion 28 may be omitted. In this case, the state in which the wire harness protective material covers the wire harness may be maintained by spirally winding the adhesive tape with the wire harness protective material covering the wire harness.

  The wire harness protection material 20 plays a role of protecting the wire harness WH by covering the wire harness WH.

  Moreover, this wire harness protective material 20 is set as the structure by which the highly rigid part 14 and the flexible part 12 were alternately provided along the extension direction. For this reason, the highly rigid part 14 plays the role which maintains the wire harness WH in a linear path | route state while fully protecting the wire harness WH. Moreover, the flexible part 12 plays the role which enables it to bend along the path | route used as arrangement | positioning object, protecting the wire harness WH.

  Moreover, since the said wire harness protective material 20 is formed in the shape which can protect the wire harness WH by folding the sheet material 10, on the assembly drawing board of the wire harness WH, the sheet material 10 folded in advance is used. By assembling to the wire harness WH, or while folding the sheet material 10, it can be assembled to the wire harness WH. For this reason, the structure of the assembly drawing board equipment of the wire harness WH can be simplified. Moreover, since the sheet | seat material 10 is exhibiting the flat shape, there exists an advantage that it is excellent in storage efficiency, transport efficiency, etc.

  In addition, it is not essential for the sheet material 10 that both the flexible portion 12 and the high-rigidity portion 14 are provided, the rib portion 16 is provided, and the fold 18 is provided. .

  For example, as shown in FIG. 3, although both the flexible part 12 and the highly rigid part 14 are provided, the sheet | seat material 10B from which the rib part 16 and the crease | fold 18 were abbreviate | omitted may be sufficient.

  For example, as shown in FIG. 4, both the flexible portion 12 and the high-rigidity portion 14 are provided with the rib portion 16, but the sheet material 10 </ b> C in which the fold 18 is omitted may be used.

  In addition, both the flexible part and the high-rigidity part are provided with the fold line 18, but the sheet material from which the rib part 16 is omitted or all parts are processed with high rigidity, and the rib part or It is good also as a sheet material in which one side of the fold was formed.

  In any case, when a wire harness protective material is configured using a sheet material that can be processed with high rigidity by being compressed in a high temperature state, the sheet material is selected depending on the protection path, protective performance, workability, etc. In some cases, it is required to obtain a sheet material by partially processing such that the processing state is different. In the following embodiments, a manufacturing apparatus and a manufacturing method for enabling such a sheet material to be efficiently manufactured with as low cost equipment as possible will be described.

{First embodiment}
FIG. 5 is a schematic perspective view showing the sheet material manufacturing apparatus 30 according to the first embodiment, and FIG. 6 is an explanatory view showing a state in which the sheet material 19 is sandwiched between a pair of rollers 40. FIG. 6 is an explanatory diagram in a cross section passing through the rotation shaft of the pair of rollers 40.

  The sheet material manufacturing apparatus 30 uses a sheet material 19 that can be processed with high rigidity by being compressed in a high temperature state as described above, and is a sheet that is partially processed in a different processing state, here. 3 is for manufacturing the sheet material 10B shown in FIG.

  The sheet material manufacturing apparatus 30 is provided in the middle of a conveyance path P in which the sheet material 19 is continuously conveyed.

  Here, a sheet supply and conveyance mechanism 90 for continuously conveying the sheet material 19 will be described.

  The sheet supply and conveyance mechanism 90 is provided along the conveyance direction in the conveyance path P that conveys the sheet material 19, and the sheet supply unit 92 provided on the upstream side in the conveyance direction and the sheet material 19 from the sheet supply unit 92. And a transport driving unit 94 that pulls out and transports along the transport path P.

  The sheet supply unit 92 includes a sheet winding unit in which a long belt-shaped sheet material 19 is wound and accommodated, and the sheet winding unit is configured to be rotatably supported around its central axis. . The sheet material 19 can be continuously drawn out from the sheet winding portion. Here, the sheet material 19 is cut by the width dimension of the sheet material 10B (see FIG. 3, the length dimension of the flexible portion 12), thereby producing a plurality of sheet materials 10B from the sheet material 19. Assumed. For this reason, the sheet material 19 is the same as the length dimension of the sheet material 10B (the length dimension in the direction orthogonal to the extending direction of the flexible portion 12) or a width larger than the length dimension, And it is set to the length dimension (dimension sufficiently longer than the width dimension of the sheet | seat material 10B) which can form several sheet | seat material 10B. In addition, the both sides of the sheet material 19 are cut out as needed.

  The transport drive unit 94 includes a pair of first transport rotators 95, a pair of second transport rotators 96, and a rotation drive mechanism 97.

  The pair of first conveyance rotators 95 supplies the sheet material 19 drawn from the sheet supply unit 92 to the downstream side of the conveyance path P with respect to the sheet supply unit 92 (here, near the sheet supply unit 92). It is provided so that it can be inserted.

  The first transfer rotator 95 includes a shaft 95a, a pair of transfer rollers 95b, and a gear 95c.

  The shaft 95 a is formed to have a length dimension that is larger than the width dimension of the sheet material 19, and is disposed so that both ends thereof protrude outward on both sides of the sheet material 19. The pair of conveying rollers 95b is attached to the shaft 95a so as not to rotate with a space that can contact both sides of the sheet material 19. The gear 95c is a spur gear and is non-rotatably attached to one end of the shaft 95a.

  The shafts 95a of the pair of first conveying rotators 95 are provided on one main surface side (upper side in FIG. 5) and the other main surface side (FIG. 5) of the sheet material 19 drawn out from the sheet supply unit 92 along the conveying path P. The lower side of the sheet material 19 is rotatably supported in a posture along the width direction of the sheet material 19 by a support mechanism (not shown).

  In this state, on both end sides of the pair of first conveying rotators 95, the conveying rollers 95b facing each other via the sheet material 19 pass the side portions of the sheet material 19 drawn along the conveying path P. It is pinched. For this reason, the pair of first conveying rotators 95 rotate in directions different from each other and in a direction in which the sheet material 19 is sent out along the conveying direction, so that the sheet material 19 moves downstream in the conveying direction of the conveying path P. Be transported.

  In the above state, the gears 95c of the pair of first transfer rotators 95 are engaged with each other. For this reason, the pair of first transfer rotators 95 are rotated in opposite directions in synchronization with each other.

  The pair of second transport rotators 96 is a sheet material transported along the transport path P at a position downstream of the transport path P with respect to the pair of first transport rotators 95. 19 is provided so that it can be inserted. Between the pair of first conveying rotators 95 and the pair of second conveying rotators 96, there is an interval in which the pair of rollers 40 and the heating mechanism 60 of the sheet material manufacturing apparatus 30 can be disposed. Yes.

  The second transport rotator 96 has the same configuration as the first transport rotator 95, that is, a shaft 96a corresponding to the shaft 95a and a pair of transport rollers 96b corresponding to the pair of transport rollers 95b. And a gear 96c corresponding to the gear 95c.

  The shafts 96a of the pair of second transport rotators 96 are on one main surface side (upper side in FIG. 5) and the other main surface side (lower side in FIG. 5) of the sheet material 19 transported along the transport path P. The sheet material 19 is rotatably supported along the width direction of the sheet material 19 by a support mechanism (not shown).

  In this state, on both end sides of the pair of second conveying rotators 96, the conveying rollers 96b facing each other with the sheet material 19 are disposed on the side portions of the sheet material 19 drawn along the conveying path P. It is pinched. For this reason, the pair of second transport rotators 96 rotate in the same manner as the pair of first transport rotators 95, so that the sheet material 19 is transported downstream in the transport direction of the transport path P.

  Further, in the above state, the gears 96c of the pair of second transfer rotators 96 are engaged with each other, and the pair of second transfer rotators 96 rotate in opposite directions in synchronization with each other.

  The rotation drive mechanism 97 is configured to synchronously drive the pair of first transfer rotators 95 and the pair of second transfer rotators 96 in synchronization.

  Specifically, the rotation drive mechanism 97 includes a rotation drive unit 97a such as a motor, and interlocking belts 97c and 97d as transmission annular members.

  The interlocking belt 97c is wound around the rotation shaft 97b of the rotation driving unit 97a and the other end portion of the shaft 95a of one (here, the lower side) first transfer rotator 95. As a result, the rotational movement of the rotation shaft 97b of the rotation drive unit 97a is transmitted to one of the first transfer rotators 95 via the interlocking belt 97c.

  Further, the interlock belt 97d is wound around one end portion of the shaft 95a of one (here, the lower side) first transport rotator 95 and one end portion of the shaft 96a of the one second transport rotator 96. ing. Thereby, the rotational motion of one of the first transport rotators 95 is transmitted to one of the second transport rotators 96 via the interlocking belt 97d.

  According to the conveyance driving unit 94, the sheet material 19 drawn by the sheet supply unit 92 is rotationally driven in a state where the sheet material 19 is sandwiched between the pair of first conveyance rotating bodies 95 and the pair of second conveyance rotating bodies 96. When the portion 97a is driven to rotate, the pair of first transport rotators 95 and the pair of second transport rotators 96 are synchronized so that the sheet material 19 is transported along the transport path P downstream in the transport direction. Then rotate. Thereby, the sheet material 19 wound and accommodated in the sheet supply unit 92 can be continuously drawn out along the conveyance path P and conveyed. Between the pair of first conveying rotators 95 and the pair of second conveying rotators 96, the sheet material 19 is continuously conveyed in a state of extending on the same plane.

  Note that the transmission of the rotational motion from the rotation driving unit to the pair of first transport rotators and the pair of second transport rotators may be performed by another transmission mechanism using a gear or the like. Rotational motion may not be transmitted to the pair of first conveying rotators, and they may be driven to rotate as the sheet material is conveyed, or the pair of first conveying rotators may be omitted. Good.

  The sheet material manufacturing apparatus 30 is in the middle of the conveyance path P in which the sheet material 19 is continuously conveyed, here, between the pair of first conveyance rotators 95 and the pair of second conveyance rotators 96. It is provided and includes a pair of rollers 40 and a heating mechanism 60.

  The pair of rollers 40 are arranged so that the sheet material 19 can be continuously sandwiched in the middle of the conveyance path P in which the sheet material 19 is conveyed from the first conveyance rotator 95 toward the second conveyance rotator 96. It is installed. Moreover, the outer peripheral surface of at least one side of the pair of rollers 40 is formed in a shape having an uneven shape. With this uneven shape, the sheet material 19 can be processed so that the processing state is partially different.

  More specifically, the pair of rollers 40 is rotatable at a position sandwiching the sheet material 19 conveyed from the first conveying rotary body 95 toward the second conveying rotary body 96 from both sides. The shaft 48 is rotatably supported.

  The shaft 48 is formed to have a length dimension that is larger than the width dimension of the sheet material 19, and is disposed so that both ends thereof protrude outward on both sides of the sheet material 19. The pair of shafts 48 is rotatably supported by a support portion (not shown) on each of one main surface side and the other main surface side of the sheet material by a support portion (not shown). The shaft 48 is formed in a hollow tube shape, and the refrigerant flows through the shaft 48.

  The pair of rollers 40 is attached to each of the pair of shafts 48 so as not to rotate. The roller 40 is formed in a columnar shape, and its length dimension is a width for processing the sheet material 10B (here, a length direction dimension of the sheet material 10B (a direction perpendicular to the flexible portion 12). The same as (dimension)).

  On the outer peripheral surface of the roller 40, a non-compression concave portion 42 is formed as an uneven shape. More specifically, a plurality of non-compression concave portions 42 are formed on the outer peripheral surface of the roller 40 at intervals along the longitudinal direction. The non-compression recess 42 is formed in a groove shape that is continuously recessed along the circumferential direction of the outer peripheral surface of the roller 40. The width of the non-compression recess 42 is set to be the same as the width of the flexible portion 12 in the sheet material 10B. The depth of the non-compressing recess 42 is preferably set such that the surface of the sheet material 19 does not contact the bottom of the non-compressing recess 42 in a state where the sheet material 19 is sandwiched between the pair of rollers 40. But this is not essential.

  The dimension between each of the non-compression recesses 42 and the dimension between the non-compression recesses 42 at both ends and the ends of the rollers 40 are set to be the same as the width of the high-rigidity portion 14 of the sheet material 10B. . Each of the pair of rollers 40 is formed with the above-described non-compression concave portion 42, and the pair of rollers 40 is disposed so as to sandwich the sheet material 19 with the respective non-compression concave portions 42 facing each other. The

  A gear 49 is non-rotatably attached to one end of the shaft 48. The gear 49 is a spur gear, and the gear 49 at one end of the pair of shafts 48 is engaged. Thereby, a pair of roller 40 rotates in a mutually opposite direction synchronously.

  In a state where the pair of rollers 40 sandwich the sheet material 19, the portions other than the portion where the non-compression concave portion 42 is formed on the outer peripheral surface of the roller 40 sandwich the sheet material 19 with a relatively high degree of compression. In the portion where the non-compression concave portion 42 is formed, the sheet material 19 is not compressed or is sandwiched at a relatively low degree of compression (see FIG. 6).

  Further, the other end of the shaft 48 to which one roller 40 (here, the upper roller 40) is attached, and the other end of the shaft 95a (here, the upper shaft 95a) of the first transfer rotating body 95. An interlocking belt 97e is wound around the part. As a result, the rotational movement by the rotation drive unit 97a is transmitted to the one shaft 48 via the pair of first conveying rotators 95 and the interlocking belt 97e, and the pair of rollers 40 is also a pair of first conveying rotations. It rotates in conjunction with the body 95 and the like. The pair of rollers 40 may be configured to be driven and rotated as the sheet material 19 is conveyed.

  The pair of rollers 40 is configured to be able to cool the sheet material 19.

  Here, the manufacturing apparatus 30 includes a roller cooling unit 50 that cools the pair of rollers 40. The roller cooling unit 50 includes a cooling device (chiller) 52 that cools the refrigerant, and a refrigerant pipe 54 that circulates the refrigerant so as to pass through the cooling device 52 and each roller 40 (here, the shaft 48).

  The cooling device 52 includes a compressor that cools the refrigerant. The refrigerant pipe 54 is between the cooling device 52 and one end portion of the shaft 48 on the one roller 40 side, between the other end portions of the shaft 48 of the pair of rollers 40, and one end portion of the shaft 48 on the other roller 40 side. And the cooling device 52 are connected to each other. Thereby, the refrigerant cooled by the cooling device 52 is circulated while cooling the pair of rollers 40 through the pair of shafts 48.

  The heating mechanism 60 is configured to be able to heat the sheet material 19 at at least one position of the position where the sheet material 19 is sandwiched between the pair of rollers 40 and the position on the upstream side of the conveyance path P from the position.

  Here, an example will be described in which the heating mechanism 60 heats the sheet material 19 at a position upstream of the conveyance path P from the position where the sheet material 19 is sandwiched between the pair of rollers 40 as the first heating mechanism. . An example in which the heating mechanism heats the sheet material at a position where the sheet material is sandwiched between the pair of rollers will be described in another embodiment.

  The heating mechanism 60 includes a hot air blowing part 62, a hot air generating part 64, and a hot air pipe 66 that connects them.

  The hot air blowing section 62 is disposed between the pair of first conveying rotators 95 and the pair of rollers 40 in the conveying path P, here, one main surface side of the sheet material 19 conveyed along the gap (see FIG. 5 is provided at an upper position). The hot air blowing portion 62 is formed in a flat box shape having a width approximately equal to the width of the sheet material 19. A hot air outlet is provided in a portion of the hot air outlet 62 facing the sheet material 19.

  The hot air generating unit 64 includes a heater that heats a gas (for example, air) by converting electrical energy into thermal energy, and a blower mechanism that sends the gas toward the hot air blowing unit 62. The hot air generating part 64 and the hot air blowing part 62 are connected by a hot air pipe 66.

  And the gas heated by the hot air generation part 64 is sent toward the hot air blowing part 62 through the said hot air pipe 66, and is blown off from a hot air blower outlet. Then, when the sheet material 19 passes through the hot air blowing portion 62 in the hot air blowing portion 62, the hot air blown from the hot air blowing port is blown over the entire width direction of the sheet material 19, thereby The sheet material 19 is heated. The temperature of the hot air blown from the hot air outlet is a temperature at which the sheet material 19 can be heated to a temperature higher than the melting point of the adhesive resin, preferably the sheet material 19 is at a temperature higher than the melting point of the adhesive resin, and It is a temperature that can be heated to a temperature lower than the melting point of the basic fiber.

  In addition to the above, an infrared heater or the like that directly heats the sheet material 19 may be used as the heating mechanism.

  The operation of the sheet material manufacturing apparatus 30 configured as described above will be described.

  First, in an initial state, the sheet material 19 drawn from the sheet supply unit 92 is transferred between the pair of first conveying rotators 95, below the hot air discharge unit 62, between the pair of rollers 40, and a pair of second conveyances. It is arranged along the transport path P through between the rotary bodies 96 for use.

  In this state, the pair of first transfer rotators 95, the pair of rollers 40, and the pair of second transfer rotators 96 are rotated by driving the rotation drive unit 97a while blowing hot air from the hot air discharge unit 62. Let

  Then, the sheet material 19 continuously drawn from the sheet supply unit 92 is heated to a temperature higher than the melting point of the adhesive resin and lower than the melting point of the basic fiber by the hot air from the hot air discharge unit 62 on the upstream side in the conveyance direction. Heated continuously.

  Thereafter, the sheet material 19 is conveyed to the downstream side of the hot air discharge unit 62 and fed between the pair of rollers 40 while maintaining a high temperature state higher than the melting point of the adhesive resin and lower than the melting point of the basic fiber. It is.

  The sheet material 19 sandwiched between the pair of rollers 40 is sandwiched at a relatively high degree of compression in a portion of the outer peripheral surface of the roller 40 other than the portion where the non-compression concave portion 42 is formed. Further, the sheet material 19 sandwiched between the pair of cooled rollers 40 is cooled so as to be equal to or lower than the melting point of the adhesive resin. As a result, a portion of the sheet material 19 that is sandwiched by a portion other than the portion where the non-compression concave portion 42 is formed on the outer peripheral surface of the roller 40 is relatively thin and highly rigid. 14 is processed.

  In addition, the sheet material 19 sandwiched between the pair of rollers 40 is not compressed in the portion of the non-compression concave portion 42 in the outer peripheral surface of the roller 40 or is sandwiched at a relatively low degree of compression. Moreover, since this part also approaches the outer peripheral surface of a pair of roller 40, it is cooled by a pair of cooled roller 40. As a result, the portion of the sheet material 19 sandwiched between the non-compression concave portions 42 in the outer peripheral surface of the roller 40 is processed into the flexible portion 12 that is relatively thick and maintains flexibility.

  The sheet material 19 in which the high-rigidity portion 14 and the flexible portion 12 are formed along the longitudinal direction of the sheet material 19 by performing the above-described processing continuously on the sheet material 19 supplied from the sheet supply unit 92. The sheet material 10B can be manufactured by cutting the sheet material 19 so as to be divided in the longitudinal direction.

  According to the sheet material manufacturing apparatus 30 configured as described above, when the sheet material 19 that has been heated to a high temperature is sandwiched between the pair of rollers 40, an uneven shape formed on at least one outer peripheral surface, Here, the sheet material 19 can be processed in a partially different compressed state by the non-compressing recess 42. That is, by heating the sheet material 19 and feeding the sheet material 19 that has become a high temperature state by heating with a pair of rollers 40 that are formed in a shape having an uneven shape on at least one side, The sheet material 19 is processed. And the sheet | seat material 10B can be manufactured by cut | disconnecting the sheet material 19 processed continuously. Thereby, it is possible to efficiently manufacture the sheet material 10 </ b> B processed so as to be partially different in a processing state with as low an equipment as possible.

  As a result, the sheet material 10B can be manufactured at low cost, and the wire harness protective material can be provided at low cost.

  Moreover, if the uneven | corrugated shape formed in the roller is changed suitably, the process which has various periodic pattern shapes can be performed with respect to the sheet | seat material 19, and the sheet | seat material and wire harness protective material of various structures with a high shape freedom degree will be continuous. Can also be manufactured. Another example of the uneven shape formed on the roller will be described later.

  In addition, since the non-compression recesses 42 are formed in the pair of rollers 40, the sheet material 19 of the pair of rollers 40 is kept flexible in the non-compression recesses 42 of the pair of rollers 40. Of these, the portion other than the non-compression recess 42 can be processed with high rigidity. As a result, the sheet material 10B partially processed with high rigidity can be efficiently manufactured with as cheap an equipment as possible.

  Also, if it is necessary to process a relatively large sheet material, if the sheet material is sandwiched by a fixed mold, the fixed mold needs to be as large as the sheet material. In addition, the fixed mold itself is increased in size, and it is necessary to use a rigid and highly rigid structure for supporting such a fixed mold, which increases the equipment cost. In contrast, in the present embodiment, the sheet material 19 is continuously conveyed and sandwiched between the pair of rollers 40 and partially processed into different processing states. Therefore, the sheet material 19 is compared with the size of the sheet material to be processed. For example, it can be processed with relatively compact equipment and inexpensive equipment.

  Note that a non-compression concave portion may be formed in only one of the pair of rollers, and the outer peripheral surface of the other roller may be a continuous peripheral surface without any unevenness. Even in this case, the sheet material can be processed into a partially flexible state by the non-compression recess formed in one of the rollers.

  In addition, since the non-compression concave portion 42 is formed in a groove shape that is continuous with the outer peripheral surface of the roller 40, the sheet material 19 and the sheet material 10B in which the flexible portion 12 continues linearly can be easily manufactured. .

  However, a non-compression recess that is partially recessed in the circumferential direction may be formed on the outer peripheral surfaces of the pair of rollers 40. Thereby, the sheet material in which the flexible portion is partially formed in the direction along the conveyance path of the sheet material can be manufactured.

  The heating mechanism 60 preheats the sheet material 19 at a position upstream of the conveyance path P from the position where the sheet material 19 is sandwiched between the pair of rollers 40. The sheet material 19 can be sufficiently heated before being sandwiched.

  Further, since the pair of rollers 40 is cooled, the sheet material 19 is cooled by being sandwiched by the pair of rollers 40 and compressed to be processed with high rigidity. For this reason, the compressed portion of the sheet material 19 is quickly cooled and hardened, and the high-rigidity portion 14 can be more reliably processed into a portion compressed with high rigidity. Further, since the flexible portion 12 is also expected to be rapidly cooled in the same manner, it is difficult for the adhesive resin of the flexible portion 12 to melt, and the flexible portion 12 can be finished to be kept more flexible.

  However, forcibly cooling the pair of rollers 40 is not essential. In particular, as a heating mechanism, at least one main surface of the sheet material 19 conveyed along the conveyance path is a heater that generates heat by supplying power (a plate heater is used to heat the sheet material over a wide range). Is preferably arranged), the sheet material 19 is heated by the heater, and the sheet material 19 is naturally cooled while being sandwiched by a pair of rollers. In addition, it is not necessary to incorporate a heating configuration, and the configuration of the sheet material manufacturing apparatus can be simplified, and further, the manufacturing cost of the sheet material can be reduced.

  Alternatively, the pair of rollers may be heated without preheating the sheet material, and the sheet material may be sandwiched and heated by the pair of heated rollers.

  In the present embodiment, since the sheet supply / conveyance mechanism 90 and the pair of rollers 40 are driven by the single rotation driving unit 97a, the configuration of the apparatus 30 can be simplified. In each of the subsequent embodiments, the other pair of subsequent rollers 272 and 372 are driven to rotate by a single rotation driving unit 97a, and there are similar advantages.

<Modification>
A modification according to the first embodiment will be described. FIG. 7 is a schematic perspective view showing a sheet material manufacturing apparatus 30B according to this modification, and FIG. 8 is an explanatory view showing a state in which the sheet material 19 is sandwiched between a pair of rollers 40B. FIG. 8 is an explanatory diagram in a cross section orthogonal to the rotation axis of the pair of rollers 40B. In the description of this modification, the same components as those described in the above embodiment will be denoted by the same reference numerals, and the description thereof will be omitted. The description will focus on differences from those described in the above embodiment. .

  The sheet material manufacturing apparatus 30B according to this modification is different from the manufacturing apparatus 30 in that a concave / convex shape forming recess 44B is formed on one of the pair of rollers 40B corresponding to the pair of rollers 40, and the concave / convex shape is formed on the other. This is a point where the forming convex portion 45B is formed.

  That is, a non-compression concave portion 42 similar to the above is formed in one of the pair of rollers 40B (the lower side in FIGS. 7 and 8). Further, a concave / convex shape forming concave portion 44B is formed in a portion other than the portion where the non-compressed concave portion 42 is formed (that is, a portion where the high-rigidity portion 14 is processed) on the outer peripheral surface of one roller 40B. Here, the concave and convex portions 44B for forming the concave and convex shapes are formed partially along the circumferential direction of the outer peripheral surface of the roller 40B, more specifically, at two locations spaced apart along the circumferential direction. Each concave / convex shape forming recess 44 </ b> B is formed in a groove shape extending along the rotation axis direction of the roller 40 </ b> B, here, a V-shaped groove shape gradually narrowing toward the back side.

  That is, a non-compression concave portion 42 similar to the above is formed on the other (upper side in FIGS. 7 and 8) of the pair of rollers 40B. In addition, a concavo-convex shape forming convex portion 45B is formed in a portion other than the portion where the non-compressing concave portion 42 is formed in the outer peripheral surface of the other roller 40B (that is, a portion where the high-rigidity portion 14 is processed). Here, the convex portions 45B for forming the concavo-convex shape are formed partially along the circumferential direction of the outer peripheral surface of the roller 40B, more specifically, at two locations spaced along the circumferential direction. Each concavo-convex shape forming convex portion 45B is formed in an elongated convex shape extending along the rotation axis direction of the roller 40B, in this case, a V-shaped convex shape gradually narrowing toward the tip side.

  The concave / convex shape forming concave portion 44B and the concave / convex shape forming convex portion 45B are formed at positions facing each other when the pair of rollers 40B rotate in opposite directions in synchronization with each other. That is, when the pair of rollers 40B rotate in the opposite directions in synchronization with each other, the concave / convex shape forming concave portion 44B and the concave / convex shape forming convex portion 45B are periodically fitted.

  In this modification, the circumferential dimension of the pair of rollers 40B is a natural width dimension of the sheet material 10C to be manufactured (see FIG. 4, a dimension in a direction perpendicular to the extending direction of the rib portion 16). It is preferable that the length is several times as long. Thereby, every time the pair of rollers 40B are rotated once, the natural number of sheets 10C can be processed.

  According to this modification, when the pair of rollers 40B sandwich the sheet material 19, the portions other than the non-compression concave portion 42 of the pair of rollers 40B compress the sheet material 19 at a relatively high compression rate as described above. Compress and process into a highly rigid portion 14. At this time, in the portion where the concave / convex shape forming concave portion 44B and the concave / convex shape forming convex portion 45B are formed, the sheet material 19 is compressed while the portion of the sheet material 19 is recessed on the concave / convex shape forming convex portion 45B side, It is processed into an uneven shape protruding toward the uneven shape forming recess 44 </ b> B, that is, the shape of the rib portion 16. For this reason, the sheet material 19 can be processed so that the sheet material 10C shown in FIG. 4 can be manufactured. That is, processing can be performed in a different manner along the conveyance path P by the pair of rollers 40 </ b> B having portions having different uneven shapes along the circumferential direction.

  Further, the concave / convex shape forming concave portion 44B and the concave / convex shape forming convex portion 45B are partially formed along the circumferential direction of the pair of rollers 40B, and therefore, along the conveyance path P with respect to the sheet material 10C. Intermittent uneven portions can be formed.

  In the present modification, the concave / convex shape forming convex portion and the concave / convex shape forming concave portion may be formed continuously along the circumferential direction of the pair of rollers. Thereby, the uneven | corrugated shaped part extended along the conveyance path with respect to the sheet | seat material 19 can be formed.

  In the present modification, the non-compression concave portion 42 may be omitted. Even in this case, it is possible to manufacture a sheet material that is partially processed so that the processed state is partially different in that it has a partially uneven shape.

{Second Embodiment}
A sheet material manufacturing apparatus 130 according to the second embodiment will be described. FIG. 9 is a schematic perspective view showing a sheet material manufacturing apparatus 130 according to the present embodiment, and FIG. 10 is an explanatory view showing a state in which the sheet material 19 is sandwiched between a pair of rollers 40. FIG. 10 is an explanatory diagram in a cross section passing through the rotation shaft of the pair of rollers 40. In the description of the present embodiment, the same components as those described in the first embodiment will be denoted by the same reference numerals, and the description thereof will be omitted. The description will focus on differences from the first embodiment. .

  The main points of the sheet material manufacturing apparatus 130 according to this embodiment differing from the manufacturing apparatus 30 are that the pair of rollers 40 are heated and the conveyance path P is conveyed to the pair of rollers 40. The sheet material 19 is cooled on the downstream side in the direction.

  That is, in the present manufacturing apparatus 130, the pair of rollers 40 are attached to the pair of shafts 148 corresponding to the pair of shafts 48 so as not to rotate.

  The shaft 148 is not connected to a cooling device, and is instead provided with a heater 149 as a second heating mechanism. The heater 149 heats the roller 40, and here, a rod-shaped heater 149 is inserted into the shaft 148. Then, the heat of the heater 149 is transmitted to the roller 40 via the shaft 148, whereby the roller 40 is heated.

  In the present embodiment, the heating mechanism 60 described in the first embodiment is, as the first heating mechanism, a position on the upstream side of the conveyance path P of the sheet material 19 from the position where the sheet material 19 is sandwiched between the pair of rollers 40. Then, the sheet material 19 is heated, and the heater 149 heats the pair of rollers 40 as a second heating mechanism.

  The temperature of the hot air blown from the hot air outlet of the hot air outlet 62 of the heating mechanism 60 is a temperature at which the sheet material 19 can be heated to a temperature lower than the melting point of the adhesive resin, and preferably the sheet material 19 is made of the adhesive resin. It is a temperature that can be heated to a temperature slightly lower than the melting point.

  The heating temperature by the heater 149 is a temperature at which the sheet material 19 sandwiched between the pair of rollers 40 can be heated to a temperature higher than the melting point of the adhesive resin, and preferably the sheet material 19 sandwiched between the pair of rollers 40 is bonded. The temperature is higher than the melting point of the resin and can be heated to a temperature lower than the melting point of the basic fiber. As a result, the portion of the sheet material 19 that is sandwiched between the pair of rollers 40 and that directly contacts the outer peripheral surface of the roller 40, that is, the portion other than the portion where the non-compression recess 42 is formed. The sheet material 19 can be made higher than the melting point of the adhesive resin. Further, in the portion of the sheet material 19 that is sandwiched between the pair of rollers 40 and in which the non-compression concave portion 42 is formed, the heating of the sheet material 19 can be suppressed. Melting can be suppressed, and a more flexible state can be maintained.

  Further, the sheet material manufacturing apparatus 130 according to the present embodiment includes a cooling mechanism 170 that cools the sheet material 19 at a position downstream of the conveyance path P from a position where the sheet material 19 is sandwiched between the pair of rollers 40. Prepare.

  Here, the cooling mechanism 170 includes a pair of plate-like members 172, a cooling device (chiller) 174 that cools the refrigerant, and a refrigerant pipe 176 that circulates the refrigerant so as to pass through the cooling device 174 and each plate-like member 172. Is provided.

  The plate-like member 172 is formed in an elongated plate shape that is the same as or longer than the length of the roller 40. The side portion on the one long side of the plate-like member 172 is formed at a tip portion 172a formed so as to become thinner gradually toward the tip side. Here, the tip 172a is inclined with respect to the other one main surface side portion of the plate-like member 172 on one main surface side of the plate-like member 172, and the other other main surface of the plate-like member 172 on the other main surface side. A shape extending on the same plane with respect to the surface side portion, that is, a single-edged shape is formed.

  The pair of plate-like members 172 are fixedly supported by a support portion (not shown) between the pair of rollers 40 and one and other main surfaces of the sheet material 19 fed from the pair of rollers 40. In this supported state, the tip 172 a of each plate-like member 172 faces the contact portion between the pair of rollers 40 and one main surface or the other main surface of the sheet material 19. That is, the plate-like member 172 is formed so as to become thin sequentially toward the contact portion between the pair of rollers 40 and one main surface or the other main surface of the sheet material 19. The foremost edge portion of the tip portion 172a can be disposed as close as possible to the contact portion between the pair of rollers 40 and one main surface or the other main surface of the sheet material 19. The surface of the plate-like member 172 facing the one main surface or the other main surface of the sheet material 19 is disposed as close as possible to the sheet material 19, and is preferably disposed so as to contact the sheet material 19. A hole through which the refrigerant can pass is formed from one end of the plate-like member 172 toward the other end.

  The cooling device 174 includes a compressor that cools the refrigerant. The refrigerant pipe 176 is provided between the cooling device 174 and one end portion of one plate-like member 172, between the other end portions of the pair of plate-like members 172, and one end portion of the other plate-like member 172 and the cooling device 174. Are connected to each other. Thus, the refrigerant cooled by the cooling device 174 circulates while cooling the pair of plate members 172 through the pair of plate members 172.

  Note that it is not essential that the pair of plate-like members 172 be provided, and only one may be provided.

  In the sheet material manufacturing apparatus 130, the sheet material 19 is heated to a certain temperature by the heating mechanism 60, and then sandwiched by the pair of rollers 40 and further heated. For this reason, when the sheet material 19 is sandwiched by the pair of rollers 40, the sheet material 19 can be easily and reliably heated to a temperature suitable for processing the sheet material 19, for example, a temperature equal to or higher than the melting point of the adhesive resin.

  Further, by setting the heating temperature of the sheet material 19 by the heating mechanism 60 to be lower than the melting point of the adhesive resin, the adhesive resin of the sheet material 19 melts when heated by the heating mechanism 60. Is suppressed. When the preheated sheet material 19 is sandwiched between the pair of rollers 40, the portion of the sheet material 19 that is compressed by touching the outer peripheral surfaces of the pair of rollers 40 (that is, the non-compression concave portion 42). Can be processed with high rigidity by heating the melting point of the adhesive resin to a temperature higher than the melting point of the adhesive resin. Further, when the preheated sheet material 19 is sandwiched between the pair of rollers 40, a portion of the sheet material 19 where the non-compression concave portion 42 of the pair of rollers 40 is formed is not in contact with the sheet material 19. Heating of the sheet material 19 can be suppressed by not contacting the compression concave portion 42 or by not pressing the sheet material 19 strongly against the non-compression concave portion 42, thereby suppressing melting of the adhesive resin. . Thereby, the flexible part 12 of the sheet material 19 can be processed more reliably and flexibly.

  As described above, according to the present embodiment, the portion of the sheet material 19 to be processed into the high-rigidity portion 14 can be selectively heated to be processed with higher rigidity, and the flexible portion 12 can be more securely processed. It can surely be processed flexibly. Thereby, the boundary of the highly rigid part 14 and the flexible part 12 can be made clear, and both can be processed and divided.

  Further, the sheet material 19 delivered from the pair of rollers 40 is cooled by the cooling device 174. For this reason, after the sheet material 19 is sandwiched between the pair of rollers 40 and heated to the melting point or more of the adhesive resin, the sheet material 19 is quickly cooled. Thereby, after heating the highly rigid part 14 more than melting | fusing point of adhesive resin, it is suppressed that preheating is transmitted to the flexible part 12, and it hardens | cures, and can keep the flexible part 12 in a flexible state more reliably. . In addition, since the portion compressed to have high rigidity is quickly cured immediately after that, the original state is restored by the original shape restoring force of the sheet material 19 itself after the compression and before the adhesive resin is cured. Therefore, it is possible to process the high-rigidity portion 14 with higher rigidity.

  The configuration for cooling the sheet material 19 delivered from the pair of rollers 40 is not limited to the above example. A configuration in which the sheet material is cooled by being sandwiched by another pair of rollers, a configuration in which cooling air is blown on the sheet material, and the like may be employed. The former configuration example will be described in another embodiment.

  In addition, since the cooling device 174 includes the plate-like member 172 having the tip portion 172a formed so as to become thin sequentially, even if a situation where the sheet material 19 sticks to the surface of the roller 40 occurs. The sheet material 19 can be cooled while peeling off the sheet material 19 from the surface of the roller 40 by the tip 172a of the plate-like portion 172. For this reason, the sheet material 19 can be processed continuously and smoothly.

  The plate-like member 172 may be cooled by natural cooling or the like.

  In the present embodiment, the cooling device 174 is not necessarily essential.

  In the present embodiment, the same functions and effects as those of the first embodiment can be achieved except for the effects of cooling the roller 40.

{Third embodiment}
A sheet material manufacturing apparatus 230 according to a third embodiment will be described. FIG. 11 is a schematic perspective view showing a sheet material manufacturing apparatus 230 according to the present embodiment. In the description of the present embodiment, the same components as those described in the first or second embodiment are denoted by the same reference numerals, and the description thereof is omitted. The differences from the second embodiment are mainly described. Explained.

  The sheet material manufacturing apparatus 230 according to this embodiment is different from the manufacturing apparatus 130 according to the second embodiment in that a roller type cooling mechanism 270 including a pair of subsequent rollers 272 instead of the pair of plate-like members 172. It is a point provided with.

  That is, the roller cooling mechanism 270 includes a pair of subsequent rollers 272, a cooling device (chiller) 276 that cools the refrigerant, and a refrigerant pipe 278.

  The pair of succeeding rollers 272 is configured to be able to sandwich the sheet material 19 with respect to the pair of rollers 40 on the downstream side of the conveyance path P of the sheet material 19.

  Here, the pair of subsequent rollers 272 are formed in the same shape as the roller 40, and the non-compression recess 273 similar to the non-compression recess 42 is formed on the outer peripheral surface. The pair of subsequent rollers 272 are preferably provided as close to the roller 40 as possible. The outer diameter of the pair of subsequent rollers 272 and the outer diameter of the pair of rollers 40 may be different.

  The pair of succeeding rollers 272 can be rotated by a pair of shafts 274 so that they can be rotated downstream of the pair of rollers 40 at positions sandwiching the sheet material 19 fed from the pair of rollers 40 from both sides. It is supported by. The shaft 274 has the same configuration as the shaft 48 and is rotatably supported by a support portion (not shown).

  A gear 274a is attached to one end of the pair of shafts 274 so as not to rotate. The gear 274a has the same configuration as the gear 49, and the gear 274a at one end of the pair of shafts 274 is engaged. Accordingly, the pair of subsequent rollers 272 are synchronously rotated in opposite directions.

  An interlock belt 97f is wound around one end (here, the lower end) of the pair of shafts 274 and the other end portion of one (the lower side here) of the pair of shafts 48. As a result, the rotational movement of the rotation shaft 97b of the rotation drive unit 97a is also transmitted to the one shaft 274 via the interlocking belt 97f, whereby the pair of first transport rotators 95 and the pair of second transports. The pair of shafts 274 and the pair of subsequent rollers 272 rotate in synchronization with the rotating body 96 and the pair of rollers 40.

  The cooling device 276 has the same configuration as the cooling device 174, and the refrigerant pipe 278 includes the cooling device 276 and one end of one shaft 274, the other end of the pair of shafts 274, and the other shaft. One end of the 274 and the cooling device 276 are connected. As a result, the refrigerant cooled by the cooling device 276 circulates while cooling the pair of subsequent rollers 272 through the pair of shafts 274.

  According to this embodiment, the sheet material 19 heated by the pair of rollers 40 can be more directly cooled by being sandwiched by the subsequent rollers 272. Therefore, the flexible portion 12 can be processed more flexibly by preventing the preheating from being transmitted, and the high-rigidity portion 14 can be prevented from returning to its original shape by its own restoring force before the adhesive resin is cured. It can be processed with higher rigidity.

  Further, in the portion where the non-compression concave portion 273 is formed in the succeeding roller 272, the sheet material 19 immediately after heating can be kept in a state where it is not compressed as much as possible, so that the flexible portion 12 is compressed by the succeeding roller 272. This can be suppressed. Further, in the portion of the subsequent roller 272 other than the portion where the non-compression concave portion 273 is formed, the sheet material 19 is cooled while being compressed, so that it is processed with higher rigidity.

  In addition, according to the present embodiment, the same functions and effects as those of the second embodiment can be obtained except for the functions and effects that can be obtained by the shape of the plate-like member 172.

{Fourth embodiment}
A sheet material manufacturing apparatus 330 according to a fourth embodiment will be described. FIG. 12 is a schematic perspective view showing a sheet material manufacturing apparatus 330 according to this embodiment, and FIG. 13 is an explanatory view showing a state in which the sheet material is sandwiched between a pair of subsequent rollers 372. FIG. 13 is an explanatory diagram in a cross section orthogonal to the rotation axis of the subsequent roller 372. In the description of the present embodiment, the same components as those described in the first to third embodiments are denoted by the same reference numerals, and the description thereof is omitted. The description will focus on differences from the third embodiment. To do.

  In this embodiment, an uneven shape forming subsequent convex portion 374 is formed on one of a pair of subsequent rollers 372 corresponding to the pair of subsequent rollers 272, and an uneven shape forming subsequent concave portion 375 is formed on the other.

  The concave / convex shape forming subsequent convex portion 374 has the same shape as the concave / convex shape forming convex portion 45B described in the modification of the first embodiment, and the concave / convex shape forming subsequent concave portion 375 is a modification of the first embodiment. This is the same shape as the concave / convex forming recess 44 </ b> B described in the above. For this reason, the pair of subsequent rollers 372 has the same configuration as the pair of rollers 40B described in the modification of the first embodiment.

  According to the present embodiment, when the pair of subsequent rollers 372 sandwich the sheet material 19, the portion (high rigidity portion 14) of the sheet material 19 that is sandwiched and compressed by the pair of rollers 40 is a pair. The subsequent roller 372 is cooled while being compressed again at a portion other than the portion where the non-compression concave portion 273 is formed. At this time, the sheet material 19 is sandwiched between the concave / convex shape forming subsequent convex portion 374 and the concave / convex shape forming subsequent concave portion 375, so that the sheet material 19 is processed into the concave / convex shape, that is, the shape of the rib portion 16. The uneven portion can be cooled and maintained in a certain shape more reliably.

  Further, the concave / convex shape forming subsequent convex portion 374 and the concave / convex shape forming subsequent concave portion 375 are partially formed along the circumferential direction of the pair of subsequent rollers 372, and therefore intermittent along the transport path P. A sheet material 10 </ b> C (see FIG. 4) on which the uneven portions (rib portions 16) are formed can be formed.

  In the present modification, the concave / convex shape forming subsequent convex portion and the concave / convex shape forming subsequent concave portion may be formed continuously along the circumferential direction of the pair of subsequent rollers. Thereby, the uneven | corrugated shaped part extended along the conveyance path with respect to the sheet | seat material 19 can be formed.

  In the present modification, the non-compression concave portion 42 may be omitted. Even in this case, it is possible to manufacture a sheet material that is partially processed so that the processed state is partially different in that it has a partially uneven shape.

  In this modification, the circumferential dimension of the pair of subsequent rollers 372 is a natural number times the width dimension of the sheet material 10C to be manufactured (the dimension in the direction orthogonal to the extending direction of the rib portion 16). It is preferable to use a length dimension. Thereby, every time the pair of subsequent rollers 372 are rotated once, the natural number of sheets 10C can be processed.

{Fifth embodiment}
A sheet material manufacturing apparatus 430 according to a fifth embodiment will be described. FIG. 14 is a schematic perspective view showing a sheet material manufacturing apparatus 430 according to the present embodiment. In the description of the present embodiment, the same components as those described in the first to fourth embodiments are denoted by the same reference numerals and the description thereof is omitted, and the differences from the fourth embodiment are mainly described. Explained.

  The sheet material manufacturing apparatus 430 includes a cutting blade 481 for cutting the sheet material 19.

  More specifically, a pair of additional processing rollers 480 is provided on the downstream side of the pair of rollers 40, here, on the downstream side of the pair of subsequent rollers 372. The circumferential length of the additional processing roller 480 is a natural number times the width of the sheet material to be manufactured (in each example of FIGS. 1 to 4, the length in the extending direction of the flexible portion 12). The dimensions are set. When the length of the circumference of the additional processing roller 480 is N times the width of the sheet material to be manufactured (N is a natural number), N cutting blades 481 are provided around the outer circumference of the subsequent roller 372. It is done.

  A cylindrical outer peripheral surface is formed on the outer peripheral surface of the additional processing roller 480, and a cutting blade 481 extending along the axial direction is formed in a part of the peripheral direction. The length dimension of the cutting blade 481 is set to be equal to or larger than the width of the sheet material 19.

  The pair of additional processing rollers 480 are rotatably supported by a shaft 488 so that the sheet material 19 fed from the pair of subsequent rollers 372 can be rotated at a position sandwiching from both sides.

  The shaft 488 is formed to have a length dimension that is larger than the width dimension of the sheet material 19, and both ends thereof are disposed so as to protrude outward on both sides of the sheet material 19. The pair of shafts 488 are rotatably supported by a support portion (not shown) on the one main surface side and the other main surface side of the sheet material by a support portion (not shown). A pair of additional processing rollers 480 is attached to the shaft 488 so as not to rotate.

  A gear 489 is non-rotatably attached to one end of the shaft 488. The gear 489 is a spur gear, and the gear 489 at one end of the pair of shafts 488 is engaged. As a result, the pair of additional processing rollers 480 rotate in opposite directions in synchronization with each other.

  The interlock belt 97g is wound around the other end portion of the shaft 488 to which one additional processing roller 480 (here, the upper additional processing roller 480) is attached and the other end portion of the one shaft 274. It has been. Thereby, the rotational motion by the rotation drive unit 97a is also transmitted to the one shaft 488, and the pair of additional processing rollers 480 is also paired with the pair of first transport rotators 95, the pair of second transport rotators 96, The pair of rollers 40 and the pair of subsequent rollers 372 rotate in conjunction with each other.

  Then, after the sheet material 19 is conveyed along the conveyance path P and processed by each of the pair of rollers 40 and the pair of subsequent rollers 372, the sheet material 19 is more in the conveyance path P than the pair of rollers 40. It is sandwiched by a pair of additional processing rollers 480 at a downstream position. As the sheet material 19 is conveyed, the pair of additional processing rollers 480 rotate in synchronization with each other, so that the cutting blade 481 is disposed on both sides of the sheet material 19 at regular intervals in the extending direction of the sheet material 19. The sheet material 19 is pressed against the sheet material 19, whereby the sheet material 19 is cut along a line along its width direction and divided into individual sheet materials.

  For this reason, since it can also divide | segment into a sheet material in the manufacturing apparatus 430 of this sheet material, the said sheet material can be manufactured more efficiently.

  In this embodiment, the cutting blade 481 is formed on both of the pair of additional processing rollers 480. However, the cutting blade may not be formed on the outer peripheral surface of the one additional processing roller. . Even in this case, the sheet material can be cut by pressing the cutting blade formed on one additional processing roller against the outer peripheral surface of the other additional processing roller. Further, only one additional processing roller may be provided, and a smooth surface that receives the cutting blade may be fixedly installed on the opposite side of the additional processing roller across the sheet material.

{Sixth embodiment}
A sheet material manufacturing apparatus 530 according to a sixth embodiment will be described. FIG. 15 is a schematic perspective view showing a sheet material manufacturing apparatus 530 according to this embodiment. In the description of the present embodiment, the same components as those described in the first to fifth embodiments are denoted by the same reference numerals and the description thereof is omitted, and the differences from the fifth embodiment are mainly described. Explained.

  The sheet material manufacturing apparatus 530 includes a crease forming blade 532 that forms the crease 18 in the sheet material 19.

  More specifically, the crease forming blade 532 is formed in a portion other than the portion where the cutting blade 481 is formed in the outer peripheral surface of the additional processing roller 480. Here, the crease forming blade 532 is formed so as to extend along a part of the outer peripheral surface of the additional processing roller 480 in the circumferential direction. The front edge of the fold forming blade 532 extends linearly, and when the fold forming blade 532 is pressed against the sheet material 19, the sheet material 19 is cut halfway in the thickness direction. Thereby, the sheet | seat material 10 (refer FIG. 1) in which the crease | fold 18 was formed can be manufactured.

  In addition to the above configuration, the crease forming blade may be formed in a blade shape (for example, a saw blade shape) that forms a perforation that is an intermittent cut. Moreover, the shape extended along the circumferential direction of the outer peripheral surface of the roller for additional processing may be sufficient as a fold formation blade, and the shape extended in the diagonal direction with respect to the circumferential direction may be sufficient as it.

  The protruding dimension of the crease forming blade 532 is set to a size that does not cut the sheet material 19.

  The crease forming blade 532 may be formed on both of the pair of additional processing rollers 480 or may be formed only on one additional processing roller 480. In order not to cut the sheet material 19, when the fold forming blade 532 is formed on both of the pair of additional processing rollers 480, the sum of the protruding dimensions of both the fold forming blades 532 is the sheet. It may be set so as not to exceed the thickness dimension of the high-rigidity portion 14 of the material 19. When the fold forming blade 532 is formed only on the one additional processing roller 480, it is preferable to set the protruding dimension of the fold forming blade 532 so as not to exceed the thickness dimension of the high-rigidity portion 14 of the sheet material 19.

  Note that only one additional processing roller may be provided, and a smooth surface that receives the crease forming blade 532 may be fixedly installed on the opposite side of the additional processing roller with the sheet material interposed therebetween.

  Then, after the sheet material 19 is conveyed along the conveyance path P and processed by each of the pair of rollers 40 and the pair of subsequent rollers 372, the sheet material 19 is more in the conveyance path P than the pair of rollers 40. It is sandwiched by a pair of additional processing rollers 480 at a downstream position. Then, as the sheet material 19 is conveyed, the pair of additional processing rollers 480 rotate synchronously, so that the crease forming blades 532 are formed on the sheet material 19 at regular intervals in the extending direction of the sheet material 19. The sheet material 19 is pressed from both sides, whereby folds 18 are formed on both sides of the sheet material 19.

  For this reason, the sheet material manufacturing apparatus 530 can more efficiently manufacture the sheet material 10 on which the folds 18 are formed.

  Moreover, since the cutting blade 481 and the crease forming blade 532 are provided on the cylindrical outer peripheral surface of the common additional processing roller 480, the cutting of the sheet material 19 and the formation of the crease 18 can be easily performed. .

  Of course, the cutting blade and the crease forming blade may be provided on the cylindrical outer peripheral surface of separate additional processing rollers. Further, the cutting blade may be omitted from the additional processing roller, and only the crease forming blade may be formed.

{Seventh embodiment}
A sheet material manufacturing apparatus 630 according to a seventh embodiment will be described. 16 is a schematic perspective view showing a sheet material manufacturing apparatus 630 according to the present embodiment, FIG. 17 is a partial schematic plan view of the manufacturing apparatus 630, and FIG. 18 is a partial schematic side view of the manufacturing apparatus 630. is there. In the description of the present embodiment, the same components as those described in the above embodiments will be denoted by the same reference numerals, and the description thereof will be omitted. The description will focus on differences from the third embodiment.

  The sheet material manufacturing apparatus 630 includes an intermediate heating unit 610 that heats the sheet material 19 between the pair of rollers 40 and the pair of subsequent rollers 272. In addition, as a pair of subsequent roller 272, the thing of a structure similar to a pair of subsequent roller 372 demonstrated in 4th Embodiment may be used.

  The intermediate heating unit 610 is configured to be able to heat a long region along the width direction of the sheet material 19 between the pair of rollers 40 and the pair of subsequent rollers 272. As such a heating mechanism 610, an apparatus such as an infrared heater for heating by irradiating electromagnetic waves, an apparatus for heating by sending warm air like the heating mechanism 60, or the like can be used.

  When the sheet material 19 conveyed along the conveyance path P is viewed in plan, the intermediate heating unit 610 heats a region of the sheet material 19 that overlaps at least one of the pair of rollers 40 and the pair of subsequent rollers 272. It is preferable that they are arranged as possible.

  Here, the intermediate heating unit 610 is an elongated plate-like heater formed in a length dimension along the width direction of the sheet material 19 and irradiates electromagnetic waves or the like from one rectangular main surface thereof. And what can heat a elongate area | region is used.

  Then, on each of both surfaces of the sheet material 19, the intermediate heating unit 610 is fixed via a bracket or the like in a region surrounded by the roller 40, the succeeding roller 272, and the sheet material 19. Within this region, the intermediate heating unit 610 is fixed in a posture along the width direction of the sheet material 19 and in a posture capable of irradiating electromagnetic waves or the like toward the sheet material 19. Further, the width of the intermediate heating unit 610 is larger than the gap between the roller 40 and the subsequent roller 272 (see FIGS. 17 and 18). And the electromagnetic wave etc. irradiated from the one rectangular main surface is irradiated to the sheet material 19 with a width larger than the gap between the roller 40 and the succeeding roller 272. Thus, when the sheet material 19 is conveyed from between the pair of rollers 40 toward the pair of subsequent rollers 272, the pair of rollers 40 and the pair of the sheet material 19 in a state in which the sheet material 19 is viewed in plan view. A region overlapping with each of the subsequent rollers 272 and a region therebetween are heated.

  The intermediate heating unit 610 plays a role of suppressing the natural cooling of the sheet material 19 heated by the pair of rollers 40 until the sheet material 19 is conveyed to the pair of subsequent rollers 272. For this reason, the heating temperature by the intermediate heating part 610 should just be higher than the surrounding ambient temperature. The heating temperature by the intermediate heating unit 610 may be a temperature that can be equal to or higher than a temperature suitable for heating the sheet material 19 with high rigidity when the sheet material 19 is sandwiched between the pair of subsequent rollers 272. preferable. The heating temperature by the intermediate heating unit 610 includes a heating temperature of the sheet material 19 by the pair of rollers 40, a temperature suitable for heating the sheet material 19 with high rigidity, and a distance between the pair of rollers 40 and the pair of subsequent rollers 272. It is determined experimentally and empirically according to the conveying speed of the sheet material 19 and the like.

  The intermediate heating unit 610 may be provided only on one side of the sheet material 19. Moreover, although it is preferable that the intermediate heating part 610 heats the area | region which overlaps with at least one of a pair of roller 40 and a pair of subsequent roller 272, this is not essential. The intermediate heating unit may heat only a region between the pair of rollers and the pair of subsequent rollers that do not overlap with each other.

  According to the sheet material manufacturing apparatus 630 configured as described above, the sheet material 19 is drawn from the pair of rollers 40, heated, and then fed to the pair of subsequent rollers 272. For this reason, even if the heating temperature of the sheet material 19 by the pair of rollers 40 is not so high, the sheet material 19 can be sandwiched between the pair of subsequent rollers 272 and processed with high rigidity. Thereby, it is easy to make the sheet material 19 into a hard part and a flexible part. In particular, it is effective when a non-compression recess is formed in at least one of the pair of rollers 40 and at least one of the pair of succeeding rollers 272 to separate the hard portion and the flexible portion.

  This will be described with reference to FIG. FIG. 19 is a diagram illustrating a temperature change of the sheet material at each position on the conveyance path P. The horizontal axis indicates the position of the sheet material 19 on the conveyance path P, L1 indicates the position where the pair of rollers 40 sandwich the sheet material 19, and L2 indicates the position where the pair of subsequent rollers 272 sandwich the sheet material 19. ing. The vertical axis indicates the temperature change of the sheet material 19 (temperature change at the position sandwiched between the convex portions of the pair of rollers 40 and the pair of succeeding rollers 272 for processing with high rigidity), and Tm is the sheet material. The temperature (for example, melting | fusing point of a binder) required in order to process 19 to high rigidity is shown. In addition, in the figure, a curve C1 indicates a temperature change when the intermediate heating unit 610 is not provided, and a curve C2 indicates a temperature change when the intermediate heating unit 610 is provided.

  When the sheet material 19 is sandwiched between the pair of subsequent rollers 272, the position where the sheet material 19 reaches the pair of subsequent rollers 272 in order to process the sheet material 19 with high rigidity at the convex portions of the pair of subsequent rollers 272. Thus, the sheet material 19 needs to be at the temperature Tm (for example, 90 ° C.) or higher.

  However, when the intermediate heating unit 610 is not provided, the sheet material 19 is naturally cooled after being pressed and heated by the pair of rollers 40 until reaching the next pair of subsequent rollers 272. Therefore, in consideration of this natural cooling, the pair of rollers 40 needs to heat the sheet material 19 to a sufficiently high temperature Ta. However, if the sheet material 19 is heated to a high temperature Ta, a portion of the sheet material 19 that should not be processed with high rigidity, that is, a portion corresponding to the non-compression recess 42 is also heated to a relatively high temperature. End up. For this reason, even if the said part is not pressurized, there exists a possibility that a binder will fuse | melt and harden in the said part. For this reason, in the sheet material after processing, a difference in flexibility between a hard portion and a flexible portion is difficult to occur.

  Therefore, when the intermediate heating unit 610 is provided, it is difficult to cool the sheet material 19 until it reaches the next pair of succeeding rollers 272 after being pressed and heated by the pair of rollers 40. That is, the temperature drop of the sheet material 19 between the pair of rollers 40 and the next pair of subsequent rollers 272 can be made smaller than in the above case.

  For this reason, the heating temperature Tb of the sheet material 19 by the pair of rollers 40 can be made lower than the heating temperature Ta. As a result, a portion of the sheet material 19 that should not be processed with high rigidity, that is, a portion corresponding to the non-compression concave portion 42 can be kept at a relatively low temperature and can be kept flexible. For this reason, in the sheet material after processing, it is possible to increase the difference in flexibility between the hard portion and the flexible portion, and to process them more clearly.

  In particular, when the intermediate heating unit 610 planarly views the sheet material 19 conveyed along the conveyance path P, it overlaps at least one of the pair of rollers 40 and the pair of subsequent rollers 272 in the sheet material 19. By heating the regions, the sheet material 19 can be effectively heated between them, and the sheet material 19 can be reliably divided into a hard part and a flexible part.

{Eighth embodiment}
A sheet material manufacturing apparatus 730 according to an eighth embodiment will be described.

  First, an example of a wire harness protective material to be manufactured and a sheet material for manufacturing the wire harness protective material will be described. FIG. 20 is an explanatory view showing a state in which the wire harness protective material 720 is attached to the wire harness WH, and FIG. 21 is a perspective view showing the sheet material 719.

  The wire harness protective material 720 is formed by processing a sheet material that is flexible in a normal state and can be processed with high rigidity by being compressed in a high temperature state. Prepare. The pair of semi-cylindrical portions 722 are connected via a hinge portion 723 so that they can be bent. A plate-like edge portion 724 is formed on the outer side portion of the pair of semi-cylindrical portions 722. Then, the pair of semi-cylindrical portions 722 are bent by the hinge portion 723, and the wire harness WH is accommodated in the columnar space formed between them. Thereafter, the joined plate-like edge 724 is joined by heat welding, ultrasonic welding, adhesive material or the like, and an adhesive tape or the like is wound around the wire harness protection material 720 and the wire harness WH as necessary. Thereby, the wire harness protective material 720 which makes a cylindrical shape with respect to the wire harness WH is attached. Here, the semi-cylindrical portion 722 is formed in a semi-cylindrical shape, and thus the wire harness protection material 720 is formed in a cylindrical shape. However, the semi-cylindrical portion may be formed in a semi-square cylinder or the like, and the wire harness protective material may be formed in a square cylinder.

  In FIG. 21, the sheet | seat material 719 is formed as the form which the sheet | seat part 719a for protective material formation for forming the said wire harness protective material 720 connected in multiple parallel state.

  That is, the protective material forming sheet portion 719 a is formed as a portion in which a pair of semi-cylindrical portions 722 are connected via the hinge portion 723. In the form of the sheet material 719, the protective material forming sheet portion 719a is formed larger than the length dimension of forming one wire harness protective material 720, and when forming the wire harness protective material 720, as appropriate. Cut to the required length.

  Further, a plurality (two in this case) of protective material forming sheet portions 719a are connected via an intermediate connecting portion 719b. The intermediate connecting portion 719b is configured such that the plate-like edge portions 724 of the two protective material forming sheet portions 719a are connected in a plate shape via an easy separation line 719L. The easy separation line 719L is formed by partially cutting the intermediate connecting portion 719b along the center line in the width direction. Accordingly, the two protective material forming sheet portions 719a are connected in parallel through the uncut portion of the easy separation line 719L. And when forming the said wire harness protective material 720, the two sheet | seat parts 719a for protective material formation can be easily isolate | separated along the easy separation line 719L.

  22 is a schematic perspective view showing a sheet material manufacturing apparatus 730 for manufacturing the sheet material 719, FIG. 23 is a perspective view showing a partial cutting blade 749, and FIG. 24 is a line XXIV-XXIV in FIG. FIG.

  The sheet material manufacturing apparatus 730 is provided in the middle of the conveyance path P in which the sheet material 19 is continuously conveyed. Note that the sheet material 19 is conveyed by a conveyance driving unit (see FIG. 5, omitted in FIG. 22) from the sheet supply unit 92 in which the long belt-like sheet material 19 is wound and accommodated, as in the first embodiment. It is pulled out along the path P.

  The sheet material manufacturing apparatus 730 includes a pair of rollers 740 </ b> A and 740 </ b> B and a heating mechanism unit 760.

  The pair of rollers 740 </ b> A and 740 </ b> B are arranged so that the sheet material 19 can be continuously sandwiched in the middle of the conveyance path P. Moreover, the outer peripheral surface of a pair of roller 740A, 740B is formed in the shape which has an uneven | corrugated shape. With this uneven shape, the sheet material 19 can be processed so that the processing state is partially different.

  More specifically, the pair of rollers 740 </ b> A and 740 </ b> B is rotatably supported by the shaft 748 so that the sheet material 19 conveyed along the conveying path P can be rotated between the both sides. .

  Similarly to the shaft 48 in the first embodiment, the shaft 748 is rotatably supported by a support portion (not shown) on each of the one main surface side and the other main surface side of the sheet material 19 by a support portion (not shown). ing. The shaft 748 is formed in a hollow tube shape, and the refrigerant flows through the shaft 748.

  The pair of rollers 740A and 740B are attached to the pair of shafts 748 so as not to rotate. The rollers 740 </ b> A and 740 </ b> B are formed in a columnar shape, and the length of the rollers 740 </ b> A and 740 </ b> B is the same as the width of the sheet material 719 for processing (here, the width of the two protective material forming sheet portions 719 a Is set.

  The roller 740B, which is one of the pair of rollers 740A and 740B, has a concave / convex forming recess 744B, and the other roller 740A has a concave / convex forming convex 744A.

  That is, a convex / concave shape forming portion 744A is formed on the roller 740A (the upper side in FIGS. 22 and 24). Here, on the outer circumferential surface of the roller 740A, two pairs of concave and convex shape forming convex portions 744A adjacent in the axial direction of the roller 740A are formed so as to be adjacent in the coaxial direction. Each concavo-convex shape forming convex portion 744A is formed in a convex shape that continuously protrudes along the circumferential direction of the outer peripheral surface of the roller 740A.

  In addition, a partial cutting blade 749 is provided between each pair of the concave and convex shape forming convex portions 744 </ b> A, which is an axially concave portion in the roller 740 </ b> A. The partial cutting blade 749 is a disk-shaped member made of metal or the like, and its outer peripheral edge is formed into an annular blade that gradually becomes thinner toward the outer peripheral side. Further, a notch-shaped recess 749n is formed on the outer peripheral portion of the partial cutting blade 749 (see FIG. 23).

  Then, as the sheet material 19 is conveyed, the partial cutting blade 749 is rotated while being pressed against the center portion in the width direction of the sheet material 19 (that is, the position between each pair of convex portions 744A for forming the concavo-convex shape). Then, the sheet material 19 is cut at a position excluding the concave portion 749n, and is left uncut at the position of the concave portion 749n. Thereby, the sheet material 719 cut partially between the adjacent protective material forming sheet portions 719a is obtained.

  Here, the partial cutting blade 749 is incorporated in the roller 740A, but may be separately provided on the downstream side of the roller 740A or the like.

  On the roller 740B (lower side in FIGS. 22 and 24), a concave / convex forming recess 744B is formed. Here, two pairs of concave / convex shape forming recesses 744B are formed on the outer peripheral surface of the roller 740B corresponding to the concave / convex shape forming convex portions 744A. Each concave-convex shape forming recess 744B is formed in a concave shape that is continuously recessed along the circumferential direction of the outer peripheral surface of the roller 740A. The concave / convex shape forming concave portion 744B is a concave shape corresponding to the convex / concave shape forming convex portion 744A. When the pair of rollers 740B is cut along a plane along the axis, the concave / convex shape forming concave portion 744B It is observed as a shape recessed in a semicircular arc shape toward the inside. The outer peripheral shape of the semi-cylindrical portion 722 can be formed by the concave / convex forming recess 744B.

  Then, by rotating the pair of rollers 740A and 740B while sandwiching the sheet material 19 between the pair of rollers 740A and 740B, the pair of semi-cylindrical portions 722 are connected via the hinge portion 723 to form a protective material forming sheet portion. 719a can be formed, and a sheet material 719 in which the protective material forming sheet portions 719a are connected in a pair of parallel states can be formed.

  Of the outer peripheral surfaces of the rollers 740A and 740B, the portion other than the portion where the convex / concave shape forming convex portion 744A is formed has a cylindrical surface shape. In particular, the central portion in the axial direction of the outer peripheral surface of the roller 740B has a cylindrical surface shape so as to receive the partial cutting blade 749. However, this is not essential, and for example, a location where the hinge portion 723 should be formed in the rollers 740A and 740B is recessed, and the surface thereof may not be pressed against the surface of the sheet material 719. Thereby, the hinge part 723 can be processed flexibly.

  The pair of rollers 740 </ b> A and 740 </ b> B are rotationally driven with the conveyance of the sheet material 719 with the same configuration as described in the first embodiment. Further, the refrigerant from the cooling device 752 is circulated and supplied to the pair of shafts 748 as in the first embodiment. Thereby, a pair of roller 740A, 740B is cooled.

  The heating mechanism 760 is configured to be able to heat the sheet material 19 on the upstream side of the conveyance path P from the position where the sheet material 19 is sandwiched between the pair of rollers 740A and 740B.

  Here, two heating mechanism portions 760 are provided to heat the sheet material 19 conveyed along the conveyance path P from both sides thereof. As the heating mechanism unit 760, a heater that generates heat by supplying power (a plate-like heater is preferably used to heat the sheet material over a wide range) is used.

  As the heating mechanism unit 760, a configuration similar to that described in the first embodiment may be used. Alternatively, the sheet material 19 may be heated only from one main surface side. Further, the pair of rollers 740A and 740B may be heated. In this case, it is preferable to provide a cooling mechanism on the downstream side of the pair of rollers 740A and 740B. The cooling mechanism may be configured to be cooled by a plate-like member as described in the second embodiment, or may be configured to be cooled by a pair of subsequent rollers as described in the third embodiment. Good.

  The operation of the sheet material manufacturing apparatus 730 will be described.

  First, in an initial state, the sheet material 19 drawn from the sheet supply unit 92 is disposed along the conveyance path P through the pair of heating mechanism units 760 and the pair of rollers 740A and 740B. .

  In this state, the sheet material 19 is conveyed while operating the pair of heating mechanisms 760 and rotating the pair of rollers 740A and 740B.

  Then, the sheet material 19 continuously drawn out from the sheet supply unit 92 is continuously heated to a temperature higher than the melting point of the adhesive resin and lower than the melting point of the basic fiber by the pair of heating mechanism units 760 on the upstream side in the conveyance direction. To be heated.

  Thereafter, the sheet material 19 is fed between the pair of rollers 740A and 740B.

  The sheet material 19 sandwiched between the pair of rollers 740A and 740B is sandwiched between the concavo-convex shape forming convex portion 744A and the concavo-convex shape forming concave portion 744B of the pair of rollers 740A and 740B, and a pair of protective material forming sheets A sheet material 719 in which the portions 719a are connected in parallel is formed.

  The sheet material 719 can be continuously manufactured by continuously performing the above on the sheet material 19 to be conveyed.

  The pair of rollers may be formed with an uneven shape that partially protrudes or is recessed in the circumferential direction. In addition, a roller on which a cutting blade that cuts or partially cuts the sheet material 719 along a line along the width direction may be provided.

  According to the sheet material manufacturing apparatus 730 configured as described above, the sheet material 19 can be easily processed into the protective material forming sheet portion 719a in which the semi-cylindrical portions 722 are arranged in parallel. And the wire harness protective material 720 which can accommodate the wire harness WH can be comprised by uniting the semi-cylindrical part 722. FIG.

  Also, a plurality of pairs of concave / convex shape forming convex portions 744A are formed on the roller 740A, and a plurality of pairs of concave / convex shape forming concave portions 744B are formed on the roller 740B. Since the partial cutting blades 749 for partially cutting between the matching protective material forming sheet portions 719a are provided, a plurality of protective material forming sheet portions 719a can be efficiently manufactured.

  Since the adjacent protective material forming sheet portions 719a can be connected to each other by a portion left uncut by the partial cutting blade 749, a plurality of protective material forming sheet portions 719a can be efficiently stored. Can be transported. When manufacturing the wire harness protective material 720 from the protective material forming sheet portion 719a, the adjacent protective material forming sheet portion 719a is easily cut by the easy separation line 719L formed by the partial cutting blade 749. The wire harness protective material 720 can be manufactured efficiently.

{Modifications}
In addition, each structure demonstrated by each said embodiment and modification can be suitably combined unless it mutually contradicts.

  For example, the additional processing roller 480 may be applied to the first to fourth embodiments, the seventh embodiment, and the eighth embodiment. In addition, the roller 40B according to the modification of the first embodiment may be applied to other embodiments.

  As described above, the present invention has been described in detail. However, the above description is illustrative in all aspects, and the present invention is not limited thereto. It is understood that countless variations that are not illustrated can be envisaged without departing from the scope of the present invention.

10, 10B, 10C Sheet material 12 Flexible portion 14 High rigidity portion 16 Rib portion 18 Fold 19 Sheet material 20 Wire harness protection material 30, 30B, 130, 230, 330, 430, 530, 630, 730 Sheet material manufacturing apparatus 40, 40B Roller 42 Uncompressed concave part 44B Concave shape forming concave part 45B Convex shape forming convex part 50 Roller cooling part 60 Heating mechanism 90 Sheet supply / conveying mechanism 149 Heater 170 Cooling mechanism 172 Plate member 172a Tip part 270 Roller type cooling Mechanism 272, 372 Subsequent roller 273 Uncompressed concave portion 374 Convex shape forming subsequent convex portion 375 Convex shape forming subsequent concave portion 480 Additional processing roller 481 Cutting blade 532 Fold forming blade 610 Intermediate heating portion 719 Sheet material 719L Easy separation line 719a Protection material forming sheet 720A, 740B Roller 744A Convex part forming convex part 744B Convex part forming concave part 749 Partial cutting blade 749n Concave part 760 Heating mechanism part P Conveyance path

An eighteenth aspect is a sheet material manufacturing apparatus according to any one of the first to seventeenth aspects, wherein a part of the circumferential surface of a cylindrical outer peripheral surface that can be rotated along with conveyance of the sheet material It is provided so as to extend along the axial direction, and is pressed against the sheet material at regular intervals as the sheet material is conveyed at a position downstream of the pair of rollers in the conveyance path of the sheet material. A cutting blade for cutting the sheet material is further provided.

A twentieth aspect is a sheet material manufacturing apparatus according to the eighteenth aspect, wherein the sheet material extends along a part of a circumferential direction of a cylindrical outer peripheral surface rotatable along with the conveyance of the sheet material along an axial direction thereof. Forming a crease in the sheet material by being pressed against the sheet material as the sheet material is conveyed at a position downstream of the pair of rollers in the conveyance path of the sheet material. A blade is further provided, and the cutting blade and the crease forming blade are provided on a common cylindrical outer peripheral surface.

Claims (21)

Using a sheet material that can be processed with high rigidity by being compressed in a high temperature state, a sheet material manufacturing apparatus that manufactures a sheet material that is partially processed to have a different processing state,
A pair of rollers formed so that at least one outer peripheral surface has a concavo-convex shape and is arranged so that the sheet material can be continuously sandwiched in the middle of the conveyance path in which the sheet material is continuously conveyed When,
A heating mechanism for heating the sheet material at at least one position of the position where the sheet material is sandwiched between the pair of rollers and a position upstream of the position of the sheet material conveyance path;
An apparatus for manufacturing a sheet material. The sheet material manufacturing apparatus according to claim 1,
An apparatus for producing a sheet material, wherein a non-compression recess is formed in at least one of the pair of rollers. An apparatus for manufacturing a sheet material according to claim 2,
The said non-compression recessed part is a sheet | seat manufacturing apparatus formed in the groove | channel shape continuously formed along the circumferential direction on the outer peripheral surface of the at least one side of a pair of said roller. The sheet material manufacturing apparatus according to any one of claims 1 to 3,
The concave / convex shape forming concave portion is formed on one of the pair of rollers, and the concave / convex shape forming convex portion is formed at a position opposite to the concave / convex shape forming concave portion on the other side of the pair of rollers. Sheet material manufacturing equipment. It is a manufacturing apparatus of the sheet material according to claim 4,
The concave and convex portions for forming the concavo-convex shape are formed so as to be continuous in the circumferential direction of the one roller, and a pair is formed so as to be adjacent in the axial direction of the pair of rollers,
The concavo-convex shape forming convex portions are formed so as to be continuous in the circumferential direction of the other roller, and are formed as a pair so as to be adjacent in the axial direction of the other roller,
The sheet material is processed between the pair of concave / convex shape forming concave portions and the pair of concave / convex shape forming convex portions to form a protective material forming sheet portion in which semi-cylindrical portions are arranged in parallel. Sheet material manufacturing apparatus. The sheet material manufacturing apparatus according to claim 5,
A plurality of the pair of concave / convex shape forming concave portions are formed on the one roller, and a plurality of pairs of the concave / convex shape forming convex portions are formed on the other roller,
Located between each pair of the pair of concave / convex shape forming concave portions and each pair of the pair of concave / convex shape forming convex portions, the sheet material is partially disposed between the adjacent protective material forming sheet portions. A sheet material manufacturing apparatus provided with a partial cutting blade for cutting. It is a manufacturing apparatus of the sheet material according to any one of claims 4 to 6,
The concave / convex forming recess is partially formed along the circumferential direction of one of the pair of rollers, and the concave / convex at the position opposite to the concave / convex forming recess in the other of the pair of rollers. An apparatus for manufacturing a sheet material, on which shape forming convex portions are formed. The sheet material manufacturing apparatus according to any one of claims 1 to 7,
The heating mechanism includes a first heating mechanism that heats the sheet material at a position upstream of the sheet material conveyance path from a position where the sheet material is sandwiched between the pair of rollers. . An apparatus for producing a sheet material according to claim 8,
The pair of rollers is a sheet material manufacturing apparatus configured to be able to cool the sheet material. An apparatus for producing a sheet material according to claim 8,
The heating mechanism includes a second heating mechanism that heats the pair of rollers. It is a manufacturing apparatus of the sheet material according to claim 10,
An apparatus for manufacturing a sheet material, further comprising a cooling mechanism that cools the sheet material at a position downstream of the sheet material conveyance path from a position where the sheet material is sandwiched between the pair of rollers. It is a manufacturing apparatus of the sheet material according to claim 11,
The cooling mechanism is provided between at least one of the pair of rollers and at least one main surface of the sheet material fed from the pair of rollers, and is gradually thinned toward the contact portion. An apparatus for producing a sheet material, comprising at least one plate-like member formed on the sheet. It is a manufacturing apparatus of the sheet material according to claim 11,
The cooling mechanism includes a pair of succeeding rollers that sandwich the sheet material on the downstream side of the sheet material conveyance path with respect to the pair of rollers, and cools the sheet material by the pair of succeeding rollers. A sheet material manufacturing apparatus including a cooling mechanism. The sheet material manufacturing apparatus according to claim 13,
The concave / convex shape forming subsequent concave portion is formed on one of the pair of subsequent rollers, and the concave / convex shape forming subsequent convex portion is located at a position opposite to the concave / convex shape forming concave portion on the other side of the pair of subsequent rollers. A sheet material manufacturing apparatus is formed. It is a manufacturing apparatus of the sheet material according to claim 14,
One of the pair of subsequent rollers is partially formed with the concave / convex shape subsequent concave portion along the circumferential direction thereof, and is opposite to the concave / convex shape subsequent concave portion, which is the other of the pair of subsequent rollers. The apparatus for manufacturing a sheet material, wherein the subsequent convex portion for forming an uneven shape is formed at a position. The sheet material manufacturing apparatus according to any one of claims 13 to 15,
An apparatus for manufacturing a sheet material, further comprising an intermediate heating unit that heats the sheet material between the pair of rollers and the pair of subsequent rollers. An apparatus for manufacturing a sheet material according to claim 16,
The intermediate heating unit heats a region of the sheet material overlapping at least one of the pair of rollers and the pair of subsequent rollers when the sheet material conveyed along the conveyance path is viewed in plan. A sheet material manufacturing apparatus. It is a manufacturing apparatus of the sheet material according to any one of claims 1 to 17,
A position on the downstream side of the sheet material conveyance path with respect to the pair of rollers, provided to extend along the axial direction in a part of the circumferential surface of the cylindrical outer peripheral surface that is rotatable along with the conveyance of the sheet material. The sheet material manufacturing apparatus further comprising a cutting blade that is pressed against the sheet material at intervals of one point as the sheet material is conveyed to cut the sheet material. The sheet material manufacturing apparatus according to any one of claims 1 to 18,
A position on the downstream side of the sheet material conveyance path with respect to the pair of rollers, provided to extend along the axial direction in a part of the circumferential surface of the cylindrical outer peripheral surface that is rotatable along with the conveyance of the sheet material. The sheet material manufacturing apparatus further comprises a crease forming blade that is pressed against the sheet material as the sheet material is conveyed to form a crease in the sheet material. An apparatus for manufacturing a sheet material according to claim 19,
The cutting blade and the crease forming blade are sheet material manufacturing apparatuses provided on a common cylindrical outer peripheral surface. Using a sheet material that can be processed with high rigidity by being compressed in a high temperature state, a sheet material manufacturing method for manufacturing a sheet material partially different in processing state,
(A) heating the sheet material;
(B) a step of feeding while sandwiching the sheet material that has been brought to a high temperature state by heating with a pair of rollers formed in a shape in which at least one outer peripheral surface has an uneven shape;
A method for producing a sheet material comprising:

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