JP2014004816A - Method for manufacturing sheet and apparatus for manufacturing sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for manufacturing a sheet and an apparatus for manufacturing the same, which can manufacture a sheet having particles dispersed in a resin component in a high compounding ratio and having suppressed variations in the thickness with high manufacturing efficiency.SOLUTION: The method for manufacturing a sheet includes: a deformation conveyance step of conveying a composition containing particles and a resin component by use of a gear structure 4 including a pair of gears 32 while deforming the composition in a direction of the rotation axis of the gears; a first gap passing step, after the deformation conveyance step, of allowing the composition to pass through a first gap 50 between a support roll 51 and a projection 63 disposed to face the support roll 51 so as to provide the first gap 50, while supporting and conveying the composition by the support roll 51; and a second gap passing step, after the first gap passing step, of allowing the composition to pass through a second gap 60 between the support roll 51 and a rolling roll 54 disposed to face the support roll 51 so as to provide the second gap 60.

Description

  The present invention relates to a sheet manufacturing method and a sheet manufacturing apparatus, and more particularly, to a sheet manufacturing method containing particles and a resin component, and a sheet manufacturing apparatus used therefor.

  Conventionally, various methods for producing a sheet containing particles from a composition containing particles and a resin component have been studied.

  For example, boron nitride particles and a resin component in which the boron nitride particles are dispersed are mixed to prepare a mixture. The mixture is hot-pressed to form a press sheet, and then laminated to form a thermally conductive sheet. An obtaining method has been proposed (see, for example, Patent Document 1 below).

JP 2012-039060 A

  However, the method described in Patent Document 1 is a batch production method in which the mixture is pressed each time, and thus has a disadvantage that the production efficiency of the heat conductive sheet is low.

  Moreover, in order to mix | blend boron nitride particles uniformly in a resin component, there exists a limit in raising the compounding quantity of a boron nitride particle, Therefore, there exists a malfunction that the uniformity of a boron nitride particle also has a limit.

  On the other hand, in the continuous production method, the efficiency of producing the sheet is improved, but the sheet produced by the continuous production method tends to vary in thickness.

  An object of the present invention is to provide a sheet manufacturing method and a sheet manufacturing apparatus capable of manufacturing a sheet in which particles are dispersed in a resin component at a high blending ratio and thickness variation is suppressed with high manufacturing efficiency. It is in.

  In order to achieve the above object, the sheet manufacturing method of the present invention is a method of deforming a composition containing particles and a resin component in the direction of the rotation axis of the gear using a gear structure including a pair of gears. A first gap is provided between the moving support and the moving support while the composition is supported and transferred by the moving support after the deforming and transferring step and the deforming and transferring step. After the first gap passage step for passing through the first gap with the doctor disposed in the manner as described above, and the first gap passage step, the composition is applied to the moving support and the moving support. And a second gap passing step of passing through the second gap with the sheet adjusting member arranged so as to face the second gap.

  According to such a manufacturing method, the composition is conveyed while being deformed in the axial direction using the gear structure, and then the composition deformed in the axial direction is supported by the moving support and conveyed. Since the sheet is passed through the first gap with the doctor, the sheet can be manufactured continuously. Therefore, the manufacturing efficiency of the sheet can be improved.

  Further, since the composition is deformed using the gear structure, the sheet can be produced by dispersing the particles in the resin component at a high blending ratio.

  In addition, since the composition that has been deformed into a sheet shape through the first gap is quickly passed through the second gap between the sheet forming member and the movable support, the variation in the thickness of the sheets is reduced. Can be reduced.

  As a result, it is possible to efficiently produce a sheet in which the particles are uniformly dispersed in the resin component at a high blending ratio and variation in thickness is suppressed.

  In the sheet manufacturing method of the present invention, it is preferable that in the second gap passing step, a protective member is brought into contact with the composition, and the composition is passed through the second gap together with the protective member.

  According to such a manufacturing method, a sheet whose surface is protected by the protective member can be efficiently manufactured.

  Moreover, in the manufacturing method of the sheet | seat of this invention, it is suitable to pass the said composition through the said 2nd clearance gap in the said 2nd clearance passage process, heating.

  According to such a manufacturing method, variation in sheets can be further suppressed.

  In the sheet manufacturing method of the present invention, it is preferable that the surface of the sheet is smoothed after the second gap passing step.

  According to such a manufacturing method, variation in sheets can be further suppressed.

  In the sheet manufacturing method of the present invention, it is preferable that the blending ratio of the particles in the sheet exceeds 30% by volume.

  According to such a manufacturing method, even if the composition ratio of the particles exceeds 30% by volume, the composition in which the particles are dispersed as a sheet by a high shearing force based on the meshing of a pair of gears. Can be transported.

  In the sheet manufacturing method of the present invention, each of the pair of gears includes oblique teeth that mesh with each other, and the tooth traces of the oblique teeth are downstream in the rotational direction from the downstream side in the rotational direction of the pair of gears. It is preferable that it inclines to the outer side of the said rotation axis direction as it goes to.

  According to such a production method, the composition is surely spread so as to spread on both outer sides in the rotational axis direction in the gear structure. Therefore, it is possible to produce a wide sheet while efficiently dispersing the particles in the resin component.

  In the sheet manufacturing method of the present invention, it is preferable to further include a kneading and extruding step of kneading and extruding the particles and the resin component before the deformation conveying step.

  According to such a production method, a composition in which particles and a resin component are sufficiently kneaded can be produced into a sheet by kneading extrusion.

  In the sheet manufacturing method of the present invention, it is preferable to further include a winding step of winding the sheet into a roll after the second gap passing step.

  According to such a manufacturing method, a roll-shaped sheet can be manufactured efficiently.

  The production apparatus of the present invention is a sheet production apparatus configured to produce a sheet from a composition containing particles and a resin component, and is a gear structure including a pair of gears, the composition The gear structure is configured to be conveyed while being deformed in the direction of the rotation axis of the gear, and is provided on the downstream side in the conveyance direction of the gear structure so as to support and convey the composition. A movable support configured, a doctor arranged to face the moving support so as to provide a first gap, and a sheet arranged to face the moving support so as to provide a second gap. It is a sheet | seat formation part provided with a formation member, Comprising: The said sheet | seat formation part comprised so that the said composition may be passed through the said 1st clearance gap and 2nd clearance gap, It is characterized by the above-mentioned.

  According to such a configuration, the composition is conveyed while being deformed in the axial direction using the gear structure, and then the composition deformed in the axial direction is supported by the moving support and conveyed. However, since the sheet is passed through the first gap with the doctor, the sheet can be continuously manufactured as a laminated sheet. Therefore, the manufacturing efficiency of the sheet can be improved.

  Further, since the composition is deformed using the gear structure, the sheet can be produced by dispersing the particles in the resin component at a high blending ratio.

  In addition, since the composition that has been deformed into a sheet shape through the first gap is quickly passed through the second gap between the sheet forming member and the movable support, the variation in the thickness of the sheets is reduced. Can be reduced.

  As a result, it is possible to efficiently produce a sheet in which the particles are uniformly dispersed in the resin component at a high blending ratio and variation in thickness is suppressed.

  Moreover, it is suitable for the manufacturing apparatus of this invention to provide the protection member sending body comprised so that a protection member may be passed through the said 2nd clearance gap.

  According to such a configuration, a sheet whose surface is protected by the protective member can be efficiently manufactured.

  Moreover, it is suitable for the manufacturing apparatus of this invention that the said moving support body and the said sheet | seat adjustment member are equipped with a heating means.

  According to such a configuration, variation in sheet thickness can be further suppressed.

  In the manufacturing apparatus of the present invention, it is preferable that the sheet forming unit further includes a smooth member.

  According to such a configuration, variation in sheet thickness can be further suppressed.

  In the manufacturing apparatus of the present invention, it is preferable that the sheet is manufactured so that the volume ratio of the particles exceeds 30% by volume.

  According to such a configuration, even in a composition in which the mixing ratio of particles exceeds 30% by volume, the composition in which particles are dispersed is conveyed as a sheet by a high shearing force based on meshing of a pair of gears. can do.

  In the manufacturing apparatus of the present invention, each of the pair of gears includes oblique teeth that mesh with each other, and the tooth traces of the oblique teeth are directed from the downstream side in the rotational direction to the upstream side in the rotational direction of the pair of gears. Accordingly, it is preferable to incline outward in the rotational axis direction.

  According to such a configuration, the composition is surely spread so as to spread on both outer sides in the rotational axis direction in the gear structure. Therefore, it is possible to produce a wide sheet while efficiently dispersing the particles in the resin component.

  Moreover, it is preferable that the manufacturing apparatus of the present invention further includes a kneading extruder provided on the upstream side in the transport direction of the gear structure and configured to knead the particles and the resin component.

  According to such a structure, the composition which particle | grains and the resin component fully kneaded can be manufactured to a sheet | seat with a kneading extruder.

  In addition, it is preferable that the sheet manufacturing apparatus of the present invention further includes a winding unit that winds the sheet into a roll after the second gap passing step.

  According to such a structure, a roll-shaped sheet | seat can be manufactured efficiently.

  According to the sheet manufacturing method and the sheet manufacturing apparatus of the present invention, it is possible to efficiently manufacture a sheet in which particles are uniformly dispersed in a resin component at a high blending ratio and thickness variation is suppressed. .

FIG. 1 is a partially cutaway plan view of an embodiment of a sheet manufacturing apparatus used in the manufacturing method of the present invention. FIG. 2 shows a cross-sectional side view of FIG. FIG. 3 shows a partially enlarged view of FIG. 4 shows an exploded perspective view of a pair of gears of the gear structure shown in FIG. FIG. 5 is a side sectional view for explaining the meshing of the pair of gears shown in FIG. 1. FIG. 5 (a) shows the downstream end of the convex surface of the inclined tooth of the first gear and the inclined tooth of the second gear. The state where the downstream end of the concave surface meshes, (b) is the state where the middle part of the convex surface of the inclined teeth of the first gear and the middle part of the concave surface of the inclined teeth of the second gear, (c) The state which the upstream side edge part of the convex surface of the inclined tooth of a 1st gear and the upstream edge part of the concave surface of the inclined tooth of a 2nd gear mesh | engage is shown. FIG. 6 is a development view when the first gear of FIG. 1 is viewed from the upper surface of the casing. FIG. 7: shows the sectional side view of other embodiment (apparatus provided with a smooth member) of this invention. FIG. 8 is a developed view of the first gear according to another embodiment of the present invention as viewed from the upper side surface of the casing. FIG. 9 is a side sectional view for explaining the meshing of a pair of gears (involute curves) according to another embodiment of the present invention. FIG. 10 is a side sectional view of the sheet manufacturing apparatus used in the comparative example.

  In FIG. 1, the right side of the page is “right side”, the left side of the page is “left side”, the lower side of the page is “front side”, the upper side of the page is “rear side”, and is indicated by a directional arrow. The description will be made assuming that the back side of the page is the “lower side”. In FIG. 1, the right side is one side in the rotational axis direction of a pair of gears (described later), and the left side is the other side in the rotational axis direction. In addition, the rear side is the upstream side in the conveyance direction of the composition, and the front side is the downstream side in the conveyance direction of the composition. Further, the directions of the drawings after FIG. 2 are the same as those described in FIG.

  In FIG. 1, a sheet manufacturing apparatus 1 is configured to manufacture a sheet from a composition containing particles and a resin component, which will be described later. For example, a kneading extruder 2, a gear structure 4, a sheet forming unit 5 and a winding unit 6. The kneading extruder 2, the gear structure 4, the sheet forming unit 5, and the winding unit 6 are arranged in series in the sheet manufacturing apparatus 1. That is, the sheet manufacturing apparatus 1 is configured to convey a composition or sheet described later in a straight line.

  The kneading extruder 2 is provided on the rear side of the sheet manufacturing apparatus 1. The kneading extruder 2 is, for example, a biaxial kneader or the like, and specifically includes a cylinder 11 and a kneading screw 12 accommodated in the cylinder 11.

  The cylinder 11 has a substantially cylindrical shape whose axis extends in the front-rear direction. Further, the rear end of the cylinder 11 is closed.

  As shown in FIG. 2, a kneading extruder inlet 14 opening upward is formed on the upper wall of the rear end portion of the cylinder 11. A hopper 16 is connected to the kneading extruder inlet 14.

  The cylinder 11 is provided with a block heater (not shown) as heating means divided into a plurality of parts along the front-rear direction.

  A kneading extruder outlet 15 opening forward is formed at the front end of the cylinder 11. A connecting pipe 17 is connected to the kneading extruder outlet 15.

  The connecting pipe 17 is formed in a substantially cylindrical shape having an axis common to the axis of the cylinder 11.

  The kneading screw 12 has a rotation axis parallel to the axis of the cylinder 11. The kneading screw 12 is provided in the cylinder 11 along the front-rear direction.

  The kneading extruder 2 is provided with a motor (not shown) connected to the kneading screw 12 on the rear side of the cylinder 11.

  Thereby, the kneading extruder 2 is configured to knead and extrude the particles and the resin component.

  As shown in FIG. 1, the gear structure 4 is provided on the front side of the kneading extruder 2. The gear structure 4 includes a casing 31 and a pair of gears 32. The gear structure 4 is also a gear pump that conveys the composition supplied from the kneading extruder 2 to the sheet forming unit 5.

  The casing 31 is formed integrally with the connecting pipe 17 and is connected to the front side of the kneading extruder 2 via the connecting pipe 17. The casing 31 has a substantially rectangular shape in plan view extending in the left-right direction, and the front side is opened in the left-right direction.

  As shown in FIG. 3, the casing 31 includes a lower casing 31 a and an upper casing 31 b that is spaced upward from the lower casing 31 a, and the lower casing 31 a and the upper casing Both ends in the left-right direction with 31b are connected by a side wall 31c as shown in FIG. The lower casing 31a includes a lower portion 61 (described later) and a lower side wall 47 (described later), and the upper casing 31b includes an upper portion 62 (described later) and an upper side wall 48 (described later). .

  As shown in FIG. 3, between the lower casing 31a and the upper casing 31b, a first storage portion 27 is provided at the rear end portion, and a gear that houses a pair of gears in the center portion in the front-rear direction. A housing 40 is provided, and a discharge port 46 is provided at the front end. In addition, a second reservoir 28 and a discharge passage 44 are formed between the gear housing 40 and the discharge port 46 so as to communicate therewith. Further, a plurality (four) of heaters (not shown) as heating means are provided on the outer surface of the casing 31.

  As shown in FIGS. 1 and 2, the first reservoir 27 communicates with the front side of the connecting pipe 17 and is formed in a substantially rectangular shape in plan view. Further, in a side sectional view, it is formed in a substantially linear shape from the rear end portion to the front end portion, and is formed in a substantially tapered shape that increases toward the front at the front end portion.

  The gear housing part 40 communicates with the front side of the first storage part 27, and includes a lower part 61 and an upper part 62 that communicates with the upper side of the lower part 61.

  Further, the upper side surface (inner side surface) 71 of the lower portion 61 and the lower side surface (inner side surface) 72 of the upper portion 62 are formed in a circular arc surface shape (half-circumferential surface shape divided into two), and a pair of gears 32. A housing space 73 for housing the container is defined. The accommodation space 73 communicates with the first storage portion 27 and is formed to extend in the vertical direction when viewed in cross section. The lower portion 61 and the upper portion 62 are formed in the casing 31 over the left-right direction. A sealed space 74 described later is provided at the upper end and the lower end of the accommodation space 73.

  The discharge port 46 is partitioned by two discharge walls 45 formed at an interval in the vertical direction, and is formed to be opened forward. The discharge wall 45 is provided at the front end of the casing 31 and includes a lower side wall 47 and an upper side wall 48.

  The lower side wall 47 has a thick flat plate shape extending in the left-right direction and the up-down direction, and each of its front surface and upper surface is formed flat.

  The upper side wall 48 has a flat bottom surface. Further, the upper side wall 48 has a substantially L shape in a side sectional view, and is formed so that the front end portion of the lower portion of the upper side wall projects forward with respect to the front surface of the upper portion of the upper side wall. That is, in the upper side wall 48, the front end part of the lower part of the upper side wall is a protruding part 63 as a doctor having a substantially rectangular shape in a side sectional view. The protrusion length (that is, the length in the front-rear direction) of the protrusion 63 is, for example, 2 mm or more, and is, for example, 150 mm or less, preferably 50 mm or less. In addition, the thickness of the protrusion 63 (that is, the length in the vertical direction) is, for example, 2 mm or more, and is, for example, 100 mm or less, preferably 50 mm or less. The front surface of the protrusion 63 and the front surface of the lower side wall 47 are formed so as to be in the same position when projected in the vertical direction.

  The 2nd storage part 28 is connected to the front side of the gear accommodating part 40, and is formed in the cross-sectional view substantially U shape by which the back is open | released. Moreover, the 2nd storage part 28 is made into the downstream space of the conveyance direction downstream with respect to the sealed space 74 mentioned later.

  The discharge passage 44 communicates with the front side of the second reservoir 28 and also communicates with the rear side of the discharge port 46. The discharge passage 44 is formed in a substantially straight line extending forward when viewed from a side sectional view.

As shown in FIG. 4, the pair of gears 32 is, for example, a double helical gear, and specifically includes a first gear 33 and a second gear 34.

  A first shaft 25 that is a rotation shaft of the first gear 33 is provided in the casing 31 (see FIG. 1) so as to extend in the left-right direction and be rotatable.

  The second shaft 26, which is the rotation shaft of the second gear 34, is provided in the casing 31 so as to extend in parallel with the first shaft 25 and be rotatable. Further, the second shaft 26 is disposed so as to face the first shaft 25 upward.

  Each of the first gear 33 and the second gear 34 is accommodated in each of the lower portion 61 and the upper portion 62. In addition, the radial end portion in the lower half portion of the first gear 33 is fitted to the upper side surface 71 of the lower portion 61, and the radial end portion in the upper half portion of the second gear 34 is in the upper portion 62. The lower side surface 72 is fitted.

Each of the first gear 33 and the second gear 34 specifically includes inclined teeth 35 that mesh with each other.

  In the first gear 33, the tooth traces of the inclined teeth 35 are inclined outward in the rotational axis direction A1 from the downstream side in the rotational direction R2 of the first gear 33 toward the upstream side in the rotational direction R2. The oblique teeth 35 are integrally provided with a first right oblique tooth 36 and a first left oblique tooth 37 having different tooth traces. In the first gear 33, the first right inclined tooth 36 is formed on the right side with respect to the axial center of the first gear 33, and the first left inclined tooth 37 is relative to the axial center of the first right inclined tooth 36. It is formed on the left side.

  Specifically, the tooth traces of the first right oblique teeth 36 are inclined from the left side (center side) to the right side (right end side) from the downstream side in the rotation direction R2 toward the upstream side in the rotation direction R2. On the other hand, the tooth traces of the first left oblique teeth 37 are formed symmetrically with respect to the tooth traces of the first right oblique teeth 36 with respect to the central portion in the left-right direction of the first gear 33. Specifically, As it goes from the downstream side in the rotational direction R2 to the upstream side in the rotational direction R2, the slope is inclined from the right side (center side) to the left side (left end side).

  The second gear 34 is formed vertically symmetrical with respect to the first gear 33, and is configured to mesh with the first gear 33. Specifically, the second right 34 meshes with the first right inclined tooth 36. The inclined teeth 38 and the second left inclined teeth 39 that mesh with the first left inclined teeth 37 are integrally provided.

  As shown in FIG. 5, the pair of gears 32 are configured such that the meshing portions indicated by black circles are configured such that the first gear 33 and the second gear 34 come into point-like contact in a side sectional view. It is a side cross-section point contact type. In addition, the pair of gears 32 are formed in the shape of a helical winding of the first gear 33 and the second gear 34 along the tooth traces of the pair of gears 32. Also referred to as contact type.

  The inclined teeth 35 of the pair of gears 32 are provided at intervals in the rotational direction R2 and connect the concave surfaces 42 formed so as to be curved inward in the radial direction, and the concave surfaces 42. A curved surface 41 integrally provided with a convex surface 43 formed so as to curve radially outward from both circumferential ends is provided.

  Further, a tooth groove 75 including a concave surface 42 is formed between the tooth traces of the oblique teeth 35, that is, between the apexes of the convex surface 43.

  As shown in FIG. 3, the casing 31 includes a pair of gears 32 between the inclined teeth 35 of the first gear 33 and the upper surface 71 of the lower portion 61, and the inclined teeth 35 of the second gear 34. An accommodation space 73 is provided so that a sealed space 74 is formed between the upper surface 62 and the lower surface 72 of the upper portion 62.

  That is, the upper side surface 71 and the lower side surface 72 are formed in a cross-sectional arc shape having the same curvature as the diameter of the pair of gears 32, and the radial ends of the pair of gears 32 (the apex of the convex surface 43, (See FIG. 5). As a result, the sealed space 74 covers the tooth gap 75 between the tooth traces of the oblique teeth 35 with the upper side surface 71 and the lower side surface 72.

  The sealed space 74 is partitioned by the tooth gap 75, and the upper side surface 71 and the lower side surface 72.

  The pair of gears 32 are arranged so that the first storage portion 27 and the second storage portion 28 do not communicate with each other via the tooth spaces 75 between the tooth traces of the inclined teeth 35. It is configured.

  As shown in FIGS. 4 and 6, the tooth groove 75 of the first right oblique tooth 36 and the tooth groove 75 of the first left oblique tooth 37 communicate with each other. In addition, the space 75 when projected from the rotation axis A1 to the tooth groove 75 of the first right oblique tooth 36 and the tooth groove 75 of the first right oblique tooth 36 over the entire rotation axis direction A1 is a sealed space. A plurality (two) of overlapping tooth grooves 76 overlapping the inner surface of 74, that is, the upper surface 71 (see FIG. 6) are formed.

  Among the overlapping tooth grooves 76, the frontmost (most downstream) overlapping tooth groove 76A has a left end portion of the first right inclined tooth 36 and a right end portion of the first left inclined tooth 37 (that is, the left and right direction of the first gear 33). When the central portion, that is, the connecting portion thereof is disposed opposite to the front end portion (downstream end portion in the rotational direction) of the upper side surface 71 (see FIG. 6), the right end portion of the corresponding first right inclined tooth 36 and The left end portion of the first left inclined tooth 37 (that is, both left and right end portions of the first gear 33) does not face the first storage portion 27 (see FIG. 6), and the upper side surface 71 is in the front-rear direction (rotating direction). Are arranged opposite to each other.

  Of the overlapping tooth grooves 76, the rearmost (most upstream) overlapping tooth groove 76 B has a right end portion of the first right inclined tooth 36 and a left end portion of the first left inclined tooth 37 (that is, the first gear 33 of the first gear 33). When the left and right end portions are disposed opposite to the rear end portion (upstream end portion in the rotational direction) of the upper side surface 71 (see FIG. 6), the left end portion and the first left oblique portion of the corresponding first right inclined tooth 36 are arranged. The right end portion of the tooth 37 (that is, the central portion in the left-right direction of the first gear 33, that is, the connecting portion) is opposed to the middle of the upper side surface 71 in the front-rear direction (rotation direction) without facing the second storage portion 28. The

The plurality of overlapping tooth grooves 76 are shifted to the tooth grooves 75 directed upstream in the rotation direction by the rotation of the first gear 33.

  Further, the overlapping tooth groove 76 and the lower side surface 72 of the second gear 34 have the same configuration as the overlapping tooth groove 76 and the upper side surface 71 of the first gear 33, and specifically, are vertically symmetrical with respect to the meshing portion. It is supposed to be configured. That is, a plurality of overlapping tooth spaces 76 that overlap with the lower surface 72 are formed in the tooth space 75. The overlapping tooth groove 76 shifts to the tooth groove 75 toward the upstream side in the rotation direction by the rotation of the second gear 34.

  A motor (not shown) connected to the first shaft 25 and the second shaft 26 of the pair of gears 32 is provided on the right side of the gear structure 4.

  Next, the meshing of the pair of gears 32 on the curved surface 41 will be described with reference to FIGS. 5 (a) to 5 (c).

  First, as shown in FIG. 5A, the downstream end portion in the rotational direction R2 of the convex surface 43 of the first gear 33 and the downstream end portion in the rotational direction R2 of the concave surface 42 of the second gear 34 are engaged with each other. When the first gear 33 and the second gear 34 are rotated in the rotation direction R2, as shown in the arrows of FIG. 5A and FIG. 5B, the rotation direction R2 of the convex surface 43 of the first gear 33 is determined. The midway portion and the midway portion of the concave surface 42 of the second gear 34 in the rotational direction R2 mesh with each other. Subsequently, as shown in the arrow of FIG. 5B and FIG. 5C, when the first gear 33 and the second gear 34 rotate in the rotation direction R2, the convex surface 43 of the first gear 33 upstream of the rotation direction R2. The side end portion and the upstream end portion in the rotation direction R2 of the concave surface 42 of the second gear 34 mesh with each other. In other words, the meshing portion of the convex surface 43 of the first gear 33 and the concave surface 42 of the second gear 34 sequentially and sequentially moves to the downstream end portion, the middle portion, and the upstream end portion in the rotational direction R2 on each surface. .

  Subsequently, although not shown, the meshing portions of the concave surface 42 of the first gear 33 and the convex surface 43 of the second gear 34 are also sequentially arranged on the downstream end, the middle portion, and the upstream end in the rotational direction R2 on each surface. Move continuously.

  Therefore, the meshing portion of the curved surface 41 of the first gear 33 and the curved surface 41 of the second gear 34 moves continuously along the rotational direction R2. This movement of the meshing portion prevents the storage portion 65 (see FIG. 8 described later) where the composition is accumulated from being formed in the tooth gap 75 between the tooth traces during conveyance of the composition.

  As shown in FIGS. 1 and 2, the sheet forming portion 5 is provided on the front side of the gear structure 4 so as to include the protruding portion 63 of the upper side wall 48. , A support roll 51 as a movable support, a base material feed roll 56, a rolling roll 54 as a sheet adjusting member, and a separator feed roll 59 as a protective member feed body.

  As shown in FIG. 3, the protrusion 63 adjusts the role of a wall that partitions the discharge port 46 of the casing 31 in the gear structure 4 and the thickness of the composition discharged from the discharge port 46 in the sheet forming unit 5. It has both the role of a doctor (or knife).

  The support roll 51 is disposed to face the protruding portion 63 so that the first gap 50 is provided. The support roll 51 is formed of a metal whose chromium plating is applied to the peripheral surface of stainless steel (SUS304 or the like). The rotation axis of the support roll 51 is parallel to the first shaft 25 and the second shaft 26 of the pair of gears 32, and specifically extends in the left-right direction. Further, the rotation axis of the support roll 51 is arranged so as to overlap the discharge port 46 and the protrusion 63 when projected in the front-rear direction. Moreover, the support roll 51 is comprised so that a composition may be supported and conveyed. Therefore, the support roll 51 is configured to pass the composition through the first gap 50.

  As shown in FIG. 2, the base material feed roll 56 is provided below the support roll 51 with a gap. The rotation axis of the base material feed roll 56 extends in the left-right direction, and the base material 8 is wound around the peripheral surface of the base material feed roll 56 in a roll shape.

  The rolling roll 54 is located downstream in the transport direction with respect to the first gap 50, and is disposed to face the support roll 51 so that the second gap 60 is provided. The rotation axis of the rolling roll 54 is parallel to the first shaft 25, the second shaft 26, and the support roll 51 of the pair of gears 32, and specifically extends in the left-right direction. Further, the rotation axis of the rolling roll 54 is arranged so as to overlap the support roll 51 when projected in the vertical direction. The rolling roll 54 has a role of adjusting variation in sheet thickness with respect to the pre-rolling sheet 7 a (sheet-like composition) passing through the first gap 50. The rolling roll 54 is formed of a metal whose chromium plating is applied to the peripheral surface of stainless steel (SUS304 or the like). The rolling roll 54 rotates in the same direction as the support roll 51 at a portion facing the support roll 51 (nip portion).

  An air pump (not shown) is provided above the rolling roll 54. An air pump has a role which gives the pressure (namely, the pressure with respect to the sheet | seat 7a before rolling) to the rolling roll 54 by making an air pressure act on the rolling roll 54. FIG.

  The separator feed roll 59 is disposed to face the upper part of the rolling roll 54 slightly forward. The rotation axis of the separator feed roll 59 extends in the left-right direction, and the separator 9 is wound around the peripheral surface of the separator feed roll 59 in a roll shape.

  The winding unit 6 is provided in front of the sheet forming unit 5 and includes a tension roll 52 and a winding roll 53.

  The tension roll 52 is provided in front of the support roll 51 at an interval. Specifically, the upper end portion of the tension roll 52 is located at the same position as the upper end portion of the support roll 51 when projected in the front-rear direction. So that it is arranged. The rotation axis of the tension roll 52 is formed to extend in the left-right direction.

  The take-up roll 53 is disposed to face the tension roll 52 at a diagonally lower front side with a space therebetween. The rotation axis of the take-up roll 53 extends in the left-right direction, and is configured so that the laminated sheet 10 can be taken up in a roll shape on the peripheral surface of the take-up roll 53.

  In addition, the support roll 51 and the rolling roll 54 are each comprised so that temperature can be adjusted with a heat medium.

  The dimensions of the sheet manufacturing apparatus 1 are appropriately set according to the types and blending ratios of the particles and resin components used, and the width and thickness of the target sheet.

  As shown in FIG. 4, the length W2 in the rotational axis direction of the pair of gears 32 (first gear 33, second gear 34) is, for example, 200 mm or more, preferably 300 mm or more, and, for example, 2000 mm. It is also below.

  The gear diameter of the pair of gears 32 (the diameter (outer diameter) of the gear 32, specifically, the diameter of the cutting edge circle) is set so that the pair of gears 32 is not distorted by the pressure during conveyance of the composition. It is 10 mm or more, preferably 20 mm or more, and is, for example, 200 mm or less, preferably 80 mm or less. The diameter of the root circle of the pair of gears 32 (a value obtained by subtracting the tooth depth L3 described below from the gear diameter) is, for example, 8 mm or more, preferably 10 mm or more, and, for example, 198 mm or less. Preferably, it is also 194 mm or less.

  As shown in FIG. 5, the tooth depth L3 of the pair of gears 32 is, for example, 1 mm or more, preferably 3 mm or more, and for example, 30 mm or less, preferably 20 mm or less.

  The pitch interval of the inclined teeth 35 in the rotation axis direction A1 is, for example, 5 mm or more, preferably 10 mm or more, and for example, 30 mm or less, preferably 25 mm or less. Further, the angle (inclination angle) of the tooth traces of the inclined teeth 35 with respect to the rotation axis of the pair of gears 32 exceeds, for example, 0 degrees, preferably 5 degrees or more, and more preferably 15 degrees or more. Also, for example, it is less than 75 degrees, preferably 70 degrees or less, more preferably 60 degrees or less. If the inclination angle is equal to or greater than the above lower limit, the composition can be spread on both outer sides of the rotation axis A1, and the wide sheet 7 can be reliably formed. On the other hand, if the inclination angle is less than or equal to the above upper limit, the overlapping tooth groove 76 can be reliably formed and the conveyance efficiency of the composition can be improved.

  As shown in FIG. 6, in the rotation trajectory of the pair of gears 32, the rotation direction length W1 where the first gear 33 and the upper side surface 71 face each other, and the rotation where the second gear 34 and the lower side surface 72 face each other. The direction length (not shown in FIG. 6) is, for example, 2 mm or more, preferably 3 mm or more, preferably 5 mm or more, and for example, 324 mm or less, preferably 315 mm or less. If the above-described length is equal to or greater than the above lower limit, a plurality of overlapping tooth grooves 76 can be reliably formed, and the conveyance efficiency of the composition can be improved. On the other hand, if the above-described length is not more than the above upper limit, the conveyance efficiency of the composition can be improved.

  The length of the support roll 51 in the rotation axis direction (the length in the left-right direction) is, for example, 210 mm or more, preferably 310 mm or more, and for example, 2040 mm or less.

  The diameter (outer diameter) of the support roll 51 is, for example, 300 mm or less, preferably 150 mm or less. For example, it is 30 mm or more, preferably 50 mm or more. By setting the diameter of the support roll 51 to 300 mm or less, particularly 150 mm or less, it is possible to suppress thermal expansion (thermal crown shape) when the support roll 51 is heated and to further suppress variation in the width direction of the sheet thickness. it can.

  The length of the rolling roll 54 in the rotation axis direction is, for example, 95 to 120% of the length of the support roll 51 in the rotation axis direction, and is preferably substantially the same as the length of the support roll 51 in the rotation axis direction. The diameter of the rolling roll 54 is, for example, 300 mm or less, preferably 150 mm or less. For example, it is 30 mm or more, preferably 50 mm or more.

  Further, as shown in FIG. 3, the longitudinal distance L1 of the first gap 50 is appropriately set according to the thickness of the substrate 8 and the desired thickness of the pre-rolling sheet 7a, for example, 60 μm or more, preferably For example, it is 3500 μm or less, preferably 2500 μm or less.

  The vertical distance L2 of the second gap 60 is appropriately set according to the dimension of the distance L1 of the first gap 50, the thickness of the separator 9, and the like. Specifically, the distance L2 is slightly narrower than the distance L1 of the first gap 50. Is set as follows. Thereby, the rolling roll 54 can be pushed into the sheet surface and the variation in the thickness of the sheet can be adjusted. Specifically, for example, the distance (roll push amount: L1-L2) narrower than the first gap 50 is, for example, 5 μm or more, preferably 10 μm or more, and for example, 100 μm or less, preferably 50 μm or less. More specifically, the vertical distance L2 of the second gap 60 is, for example, 65 μm or more, preferably 70 μm or more, and for example, 3600 μm or less, preferably 3550 μm or less.

  Hereinafter, a method for manufacturing the laminated sheet 10 from the composition containing particles and a resin component using the sheet manufacturing apparatus 1 will be described.

  The particles include powder, granules, powders, and powders, and examples of the material forming the particles include inorganic materials and organic materials. Preferably, an inorganic material is used.

  Examples of the inorganic material include carbide, nitride, oxide, carbonate, sulfate, metal, clay mineral, and carbon-based material.

  Examples of the carbide include silicon carbide, boron carbide, aluminum carbide, titanium carbide, and tungsten carbide.

  Examples of the nitride include silicon nitride, boron nitride (BN), aluminum nitride (AlN), gallium nitride, chromium nitride, tungsten nitride, magnesium nitride, molybdenum nitride, and lithium nitride.

Examples of the oxide include silicon oxide (silica, including spherical fused silica powder, crushed fused silica powder, etc.), aluminum oxide (alumina, Al ₂ O ₃ ), magnesium oxide (magnesia), titanium oxide, cerium oxide, Examples thereof include iron oxide and beryllium oxide. Furthermore, as the oxide, for example, indium tin oxide or antimony tin oxide doped with metal ions can be used.

  Examples of the carbonate include calcium carbonate.

  Examples of the sulfate include calcium sulfate (gypsum).

  Examples of the metal include copper (Cu), silver, gold, nickel, chromium, lead, zinc, tin, iron, palladium, or an alloy thereof (such as solder).

  Examples of clay minerals include montmorillonite, magnesia montmorillonite, tetsu montmorillonite, tetsu magnesian montmorillonite, beidellite, aluminian beidelite, nontronite, aluminian nontronite, support stone, aluminian support stone, Examples include hectorite, soconite, and stevensite.

  Examples of the carbon-based material include carbon black, graphite, diamond, fullerene, carbon nanotube, carbon nanofiber, nanohorn, carbon microcoil, and nanocoil.

In addition, examples of the material include a material having specific physical properties, and a heat conductive material (for example, a heat conductive material selected from carbide, nitride, oxide and metal, specifically, BN, AlN, Al _2). O ₃ ), an electrically conductive material (for example, an electrically conductive material selected from metals and carbon-based materials, specifically Cu), an insulating material (for example, nitride, oxide, etc.) BN, silica, etc.), magnetic materials (for example, oxides, metals, specifically, ferrites (soft magnetic ferrite, hard magnetic), iron, etc.). The material having specific physical properties may overlap with the material exemplified above.

  The thermal conductivity of the heat conductive material is, for example, 10 W / m · K or more, preferably 30 W / m · K or more, and for example, 2000 W / m · K or less.

Further, the electrical conductivity of the electrically conductive material is, for example, 10 ⁶ S / m or more, preferably 10 ⁸ S / m or more, and usually 10 ¹⁰ S / m or less.

The volume resistance of the insulating material is 1 × 10 ¹⁰ Ω · cm or more, preferably 1 × 10 ¹² Ω · cm or more, and for example, 1 × 10 ²⁰ Ω · cm or less.

  The magnetic material has a magnetic permeability (μ ″ at a wavelength of 2.45 GHz), for example, 0.1 to 10.

  Moreover, the shape of particle | grains is not specifically limited, For example, plate shape, scale shape, particle shape (indefinite shape), spherical shape etc. are mentioned.

  The average value of the maximum length of particles (in the case of a spherical shape, the average particle diameter) is, for example, 0.1 μm or more, preferably 1 μm or more, and, for example, 1000 μm or less, preferably 100 μm or less. But there is.

  The aspect ratio of the particles is, for example, 2 to 10,000, preferably 10 to 5,000.

Further, the specific gravity of the particles, for example, 0.1 to 20 g / cm ^3, preferably from 0.2 to 10 g / cm ^3.

  These particles can be used alone or in combination of two or more.

  The resin component can disperse the particles, that is, a dispersion medium (matrix) in which the particles are dispersed and contains an insulating component, and examples thereof include resin components such as a thermosetting resin component and a thermoplastic resin component. It is done.

  Examples of the thermosetting resin component include epoxy resins, thermosetting polyimides, urea resins, melamine resins, unsaturated polyester resins, diallyl phthalate resins, silicone resins, thermosetting urethane resins, and the like.

  Examples of the thermoplastic resin component include acrylic resin, polyolefin (for example, polyethylene, polypropylene, ethylene-propylene copolymer, etc.), polyvinyl acetate, ethylene-vinyl acetate copolymer, polyvinyl chloride, polystyrene, polyacrylonitrile, Polyamide, polycarbonate, polyacetal, polyethylene terephthalate, polyphenylene oxide, polyphenylene sulfide, polysulfone, polyethersulfone, polyetheretherketone, polyallylsulfone, thermoplastic polyimide, thermoplastic urethane resin, polyaminobismaleimide, polyamideimide, polyetherimide, Bismaleimide triazine resin, polymethylpentene, fluororesin, liquid crystal polymer, olefin-vinyl alcohol copolymer, polymer Ionomer, polyarylate, acrylonitrile - ethylene - styrene copolymers, acrylonitrile - butadiene - styrene copolymer, acrylonitrile - styrene copolymer.

  These resin components can be used alone or in combination of two or more.

  Among the resin components, the thermosetting resin component is preferably an epoxy resin, and the thermoplastic resin component is preferably an acrylic resin.

  The epoxy resin is in a liquid, semi-solid, or solid form at normal temperature.

  Specifically, as the epoxy resin, for example, bisphenol type epoxy resin (for example, bisphenol A type epoxy resin, bisphenol F type epoxy resin, bisphenol S type epoxy resin, hydrogenated bisphenol A type epoxy resin, dimer acid modified bisphenol type) Epoxy resin, etc.), novolac type epoxy resin, naphthalene type epoxy resin, fluorene type epoxy resin (eg, bisarylfluorene type epoxy resin), triphenylmethane type epoxy resin (eg, trishydroxyphenylmethane type epoxy resin), etc. Aromatic epoxy resins such as nitrogen-containing ring epoxy resins such as triepoxypropyl isocyanurate and hydantoin epoxy resins such as aliphatic epoxy resins, alicyclic epoxy resins, Glycidyl ether type epoxy resins, and glycidyl amine type epoxy resin.

  These epoxy resins can be used alone or in combination of two or more.

  The epoxy equivalent of the epoxy resin is, for example, 100 to 1000 g / eq. , Preferably 180 to 700 g / eq. It is. Moreover, when an epoxy resin is a normal temperature solid state, a softening point is 20-90 degreeC, for example.

  Moreover, an epoxy resin can be prepared as an epoxy resin composition by containing a hardening | curing agent and a hardening accelerator, for example.

  The curing agent is a latent curing agent (epoxy resin curing agent) that can cure the epoxy resin by heating. For example, a phenol compound, an amine compound, an acid anhydride compound, an amide compound, a hydrazide compound, an imidazoline compound, and the like. Is mentioned. In addition to the above, urea compounds, polysulfide compounds, and the like are also included.

  The phenol compound contains a phenol resin, for example, a novolac type phenol resin obtained by condensing phenol and formaldehyde in the presence of an acidic catalyst, for example, phenol synthesized from phenol and dimethoxyparaxylene or bis (methoxymethyl) biphenyl. Examples include aralkyl resins such as biphenyl aralkyl resins, such as dicyclopentadiene type phenol resins, such as cresol novolac resins, such as resole resins.

  Examples of the amine compound include polyamines such as ethylenediamine, propylenediamine, diethylenetriamine, and triethylenetetramine, or amine adducts thereof such as metaphenylenediamine, diaminodiphenylmethane, and diaminodiphenylsulfone.

  Examples of the acid anhydride compound include phthalic anhydride, maleic anhydride, tetrahydrophthalic anhydride, hexahydrophthalic anhydride, 4-methyl-hexahydrophthalic anhydride, methyl nadic acid anhydride, and pyromellitic acid. Anhydride, dodecenyl succinic anhydride, dichlorosuccinic anhydride, benzophenone tetracarboxylic acid anhydride, chlorendic acid anhydride and the like can be mentioned.

  Examples of the amide compound include dicyandiamide and polyamide.

  Examples of the hydrazide compound include adipic acid dihydrazide.

  Examples of the imidazoline compound include methyl imidazoline, 2-ethyl-4-methyl imidazoline, ethyl imidazoline, isopropyl imidazoline, 2,4-dimethyl imidazoline, phenyl imidazoline, undecyl imidazoline, heptadecyl imidazoline, 2-phenyl-4-methyl. Examples include imidazoline.

  These curing agents can be used alone or in combination of two or more.

  The curing accelerator is a curing catalyst, for example, an imidazole compound such as 2-phenylimidazole, 2-methylimidazole, 2-ethyl-4-methylimidazole, 2-phenyl-4-methyl-5-hydroxymethylimidazole, For example, tertiary amine compounds such as triethylenediamine and tri-2,4,6-dimethylaminomethylphenol, such as triphenylphosphine, tetraphenylphosphonium tetraphenylborate, tetra-n-butylphosphonium-o, o-diethylphospho Phosphorus compounds such as rosioate, for example, quaternary ammonium salt compounds, for example, organometallic salt compounds, for example, derivatives thereof and the like. These curing accelerators can be used alone or in combination of two or more.

  The compounding ratio of the curing agent in the epoxy resin composition is, for example, 0.5 to 200 parts by mass, preferably 1 to 150 parts by mass with respect to 100 parts by mass of the epoxy resin. For example, 0.1 to 10 parts by mass, preferably 0.2 to 5 parts by mass. Moreover, when a hardening | curing agent contains a phenol resin, the hydroxyl group of a phenol resin is 0.5-2.0 mol with respect to 1 mol of epoxy groups of an epoxy resin in an epoxy resin composition, Preferably , 0.8 to 1.2 mol.

  The above-mentioned curing agent and / or curing accelerator can be prepared and used as a solvent solution and / or a solvent dispersion dissolved and / or dispersed with a solvent, if necessary.

  Examples of the solvent include organic solvents such as ketones such as acetone and methyl ethyl ketone (MEK), esters such as ethyl acetate, and amides such as N, N-dimethylformamide. Examples of the solvent also include aqueous solvents such as water, for example, alcohols such as methanol, ethanol, propanol, and isopropanol.

  The acrylic resin contains acrylic rubber, and is specifically obtained by polymerization of a monomer containing (meth) acrylic acid alkyl ester.

  The (meth) acrylic acid alkyl ester is a methacrylic acid alkyl ester and / or an acrylic acid alkyl ester. For example, methyl (meth) acrylate, ethyl (meth) acrylate, butyl (meth) acrylate, (meth) Hexyl acrylate, 2-ethylhexyl (meth) acrylate, nonyl (meth) acrylate, isononyl (meth) acrylate, decyl (meth) acrylate, isodecyl (meth) acrylate, undecyl (meth) acrylate, (meth Linear or branched alkyl groups having 30 or less carbon atoms such as lauryl acrylate, tridecyl (meth) acrylate, tetradecyl (meth) acrylate, octadecyl (meth) acrylate and octadodecyl (meth) acrylate (Meth) acrylic acid alkyl ester Preferably, the alkyl moieties are linear (meth) acrylic acid alkyl esters having 1 to 18 carbon atoms.

  These alkyl (meth) acrylates can be used alone or in combination of two or more.

  The blending ratio of the (meth) acrylic acid alkyl ester is, for example, 50% by mass or more, preferably 75% by mass or more, for example, 99% by mass or less with respect to the monomer.

  The monomer may also include a copolymerizable monomer that can be polymerized with (meth) acrylic acid alkyl ester.

  The copolymerizable monomer contains a vinyl group, for example, a cyano group-containing vinyl monomer such as (meth) acrylonitrile, for example, a glycidyl group-containing vinyl monomer such as glycidyl (meth) acrylate (epoxy group-containing vinyl monomer), for example, Examples thereof include aromatic vinyl monomers such as styrene.

  The blending ratio of the copolymerizable monomer is, for example, 50% by mass or less, preferably 25% by mass or less, for example, 1% by mass or more with respect to the monomer.

  These copolymerizable monomers can be used alone or in combination of two or more.

  When the copolymerizable monomer is a cyano group-containing vinyl monomer and / or an epoxy group-containing vinyl monomer, the resulting acrylic resin has a functional group such as an epoxy group and / or a cyano group bonded to the terminal or midway of the main chain. Are introduced into the functional group-modified acrylic resin (specifically, cyano-modified acrylic resin, epoxy-modified acrylic resin, cyano-epoxy-modified acrylic resin).

The melt viscosity at 80 ° C. of the resin component (when the thermosetting resin component is contained, the thermosetting resin component is in the A-stage state) at 80 ° C. is, for example, 10 to 10,000 mPa · s,
Preferably, it is also 50 to 10,000 mPa · s.

  The softening temperature (ring and ball method) of the resin component is, for example, 80 ° C. or less, preferably 70 ° C. or less, and for example, 20 ° C. or more, preferably 35 ° C. or more.

  Specifically, the mixing ratio of the particles and the resin component is such that the volume ratio of the particles in the sheet form exceeds, for example, 30% by volume, preferably 35% by volume or more, preferably 40% by volume or more. Is set to be 60% by volume or more, more preferably 70% by volume or more, for example, 98% by volume or less, preferably 95% by volume or less.

  The mixing ratio of the particles and the resin component based on mass is set so as to be the volume ratio of the particles in the above-described sheet.

  The resin component includes, for example, a polymer precursor (for example, a low molecular weight polymer including an oligomer) and / or a monomer in addition to the above-described components (polymerized products).

  These resin components can be used alone or in combination.

  Then, as shown in FIG. 2, a hopper 16 is charged with a composition containing particles and a resin component.

  In the sheet manufacturing apparatus 1, the kneading extruder 2, the gear structure 4, and the sheet forming unit 5 (particularly, the support roll 51 and the rolling roll 54) are adjusted to a predetermined temperature and / or rotational speed. The temperatures of the kneading extruder 2, the gear structure 4 and the sheet forming portion 5 are, for example, higher than the softening temperature when the resin component contains a thermoplastic resin component, and the resin component is thermoset. When it contains a functional resin component, it is lower than its curing temperature. Specifically, the temperatures of the kneading extruder 2, the gear structure 4, and the sheet forming portion 5 are, for example, 50 ° C or higher, preferably 70 ° C or higher, and for example, 200 ° C or lower, preferably It is also 150 degrees C or less.

  In particular, the temperature of the support roll 51 and the rolling roll 54 is set to be higher than the temperature of the gear structure 4, and the temperature difference is, for example, 5 ° C. or more, preferably 10 ° C. or more. C. or lower, preferably 30 C or lower. The temperature difference between the support roll 51 and the rolling roll 54 is 5 to 50 ° C., and preferably is approximately isothermal.

  The rotation speed (conveyance speed) of the support roll 51 is, for example, 0.05 m / min or more, preferably 0.10 m / min or more, for example, 10.00 m / min or less, preferably 5.00 m / min. But there is. The rotation speed of the rolling roll 54 is substantially constant with respect to the rotation speed of the support roll 51.

  Moreover, the air pressure with respect to the rolling roll 54 of an air pump is 0.1 MPa or more, for example, Preferably, it is 0.3 MPa or more, for example, is 5.0 MPa or less, Preferably, it is also 2.0 MPa or less.

  Further, the base material 8 is wound around the base material feed roll 56 in advance.

Examples of the substrate 8 include polypropylene film, ethylene-propylene copolymer film, polyester film (PET, etc.), plastic films such as polyvinyl chloride, paper such as kraft paper, cotton cloth, soft cloth, etc. And non-woven fabrics such as polyester non-woven fabric and vinylon non-woven fabric, for example, metal foil.
The thickness of the base material 8 is appropriately selected according to the purpose and use thereof, and is, for example, 10 to 500 μm. In addition, the surface of the base material 8 can also be mold-released.

  Further, the separator 9 is wound around the separator feed roll 59 in advance.

  Examples of the separator 9 are the same as those of the substrate 8, and the surface of the separator 9 can also be surface-treated. The thickness of the separator 9 is appropriately selected according to its purpose and application, and is, for example, 10 to 500 μm.

  Next, the composition is charged into the cylinder 11 from the hopper 16 through the kneading extruder inlet 14 of the cylinder 11.

  In the kneading extruder 2, the particles and the resin component contained in the composition are kneaded and extruded by the rotation of the kneading screw 12 while being heated by the block heater, and the composition in which the particles are dispersed in the resin component is kneaded and extruded. As shown in FIG. 2, the first outlet 27 is reached from the machine outlet 15 via the connecting pipe 17 (kneading extrusion process).

Thereafter, the composition is conveyed forward in the gear structure 4 while being deformed in the rotation axis direction A1 of the pair of gears 32 (deformation conveyance step).

  Specifically, the composition is conveyed while being spread from the center portion in the rotation axis direction A1 to both ends by the meshing of the pair of gears 32.

  Specifically, as shown in FIG. 3, the composition reaches from the upper end portion and the lower end portion of the front side portion of the first storage portion 27 to the rear side portion from the meshing portion of the pair of gears 32 in the accommodation space 73. While being sheared by the oblique teeth 35 of the pair of gears 32, the tooth is entrained in the tooth gap 75 and then reaches the sealed space 74. Then, in the sealed space 74, the composition moves along the tooth traces of the oblique teeth 35, that is, the communication between the first storage portion 27 and the second storage portion 28 by the tooth spaces 75 that become the overlapping tooth spaces 76. While being prevented, the pair of gears 32 are transported downstream of the pair of gears 32 in the rotational direction R2, that is, forward. As a result, the composition is pushed out to the front side of the pair of gears 32 and reaches the front side part from the meshing part of the pair of gears 32 in the accommodation space 73.

  Subsequently, the composition is prevented from flowing backward (returning back) to the first storage portion 27 via the meshing portion of the oblique teeth 35 (see FIG. 5) while being prevented by the meshing portion of the oblique teeth 35. It is pushed out.

  Specifically, as shown in FIG. 4, in the right side portion of the gear structure 4, the rotation axis direction A <b> 1 of the pair of gears 32 is engaged by the engagement of the first right inclined teeth 36 and the second right inclined teeth 38. It is spread from the center of the head toward the right edge. On the other hand, in the left portion of the gear structure 4, the first left inclined teeth 37 and the second left inclined teeth 39 are engaged to push the pair of gears 32 from the central portion in the rotation axis direction A 1 toward the left end portion. Can be spread.

  Subsequently, as shown in FIG. 3, the composition reaches the discharge port 46 via the second reservoir 28 and the discharge passage 44, and then is discharged (conveyed) from the discharge port 46 toward the support roll 51. .

  Specifically, the base material 8 fed from the base material feed roll 56 (see FIG. 2) is laminated on the peripheral surface of the support roll 51, and the composition is supported via the base material 8. While being supported by 51, it is conveyed in the rotation direction of the support roll 51 (clockwise on the left side indicated by the arrow in FIG. 2).

  The composition discharged from the discharge port 46 is once discharged to the rear of the support roll 51 via the base material 8 and immediately, between the first gap 50 (that is, the protrusion 63 and the peripheral surface of the support roll 51). The thickness is adjusted by the distance L1). Specifically, the excess composition is scraped off by the protrusion 63 and formed as a sheet-like composition having a desired thickness and a desired width (hereinafter referred to as a pre-rolling sheet 7a). And the sheet | seat 7a before rolling is conveyed by the 2nd clearance gap 60 as the sheet | seat 13 with a base material on which the rolling sheet 7a was laminated | stacked on the base material 8 (1st clearance passage process).

  More specifically, by adjusting the distance L1 of the first gap 50 and the thickness of the base sheet 13, the distance L1 of the first gap 50 is obtained by the thickness of the sheet 7a before rolling or the second gap passing step. The thickness of the rolled sheet 7 (described later) is determined.

  The thickness of the sheet with substrate 13 is, for example, 60 μm or more, preferably 110 μm or more, and for example, 2500 μm or less, preferably 1500 μm or less.

  The thickness of the pre-rolled sheet 7a is, for example, 50 μm or more, preferably 100 μm or more, and for example, 2000 μm or less, preferably 1000 μm or less.

  Subsequently, as shown in FIG. 2, the pre-rolling sheet 7 a is conveyed from the rear end of the support roll 51 to the upper end of the support roll 51 along the outer periphery of the support roll 51, and then the second gap 60 (that is, In the nip portion between the rolling roll 54 and the support roll 51, the separator 9 is laminated on the upper surface of the pre-rolling sheet 7a and simultaneously rolled. Specifically, in the second gap 60, the pre-rolling sheet 7a formed into a sheet shape by the first gap 50 is immediately applied with pressure from above through the separator 9 by the rolling roll 54. Is done. Therefore, the sheet 7a before rolling is a sheet whose surface is deformed flat and variation in the thickness of the sheet surface is suppressed (hereinafter referred to as a rolled sheet 7). As a result, a laminated sheet 10 in which the base material 8 and the separator 9 are laminated on both surfaces of the rolled sheet 7 is obtained (second gap passing step).

  As shown in FIG. 2, the center angle α when the peripheral surface of the support roll 51 extending from the first gap to the second gap is projected in the axial direction of the support roll 51 is, for example, 15 degrees or more, preferably 30 degrees or more, more preferably 45 degrees or more, for example, 150 degrees or less, preferably 120 degrees or less, 100 degrees or less.

  The thickness of the laminated sheet 10 is, for example, 50 μm or more, preferably 80 μm or more, and for example, 2900 μm or less, preferably 1950 μm or less.

  The thickness of the rolled sheet 7 in the laminated sheet 10 is, for example, 60% or more and, for example, 95% or less with respect to the thickness of the unrolled sheet 7a when passing through the first gap 50. Specifically, for example, it is 30 μm or more, preferably 60 μm or more, and for example, 1900 μm or less, preferably 950 μm or less.

  Subsequently, the laminated sheet 10 is conveyed downstream in the conveying direction, passes through the tension roll 52, and is subsequently wound into a roll by the winding roll 53 (winding step).

  In addition, in this sheet manufacturing apparatus 1, when the resin component contains a thermosetting resin component, after being heated by the kneading extruder 2, the thermosetting property in the composition is taken up until being wound on the take-up roll 53. The resin component is in the B stage state, and the thermosetting resin component in the laminated sheet 10 wound around the winding roll 53 is also in the B stage state.

  Then, according to the sheet manufacturing method and the sheet manufacturing apparatus 1, the composition is transported while being deformed in the axial direction A 1 using the gear structure 4, and then the composition is supported by the support roll 51. While being supported and conveyed, the composition is passed through the first gap 50 between the support roll 51 and the protrusion 63, and then the composition is passed through the second gap 60 between the support roll 51 and the rolling roll 54. An object can be continuously produced in a sheet form. Therefore, the manufacturing efficiency of a rolled sheet can be improved.

  Moreover, since the composition is deformed using the gear structure 4, a rolled sheet 7 in which particles are dispersed in the resin component at a high blending ratio can be manufactured.

  Furthermore, since the composition is passed through the first gap 50 while being supported by the support roll 51 and conveyed, the composition has a wide range of viscosity (for example, a melt viscosity at 80 ° C. of 1 to 10,000 Pa · s). The rolled sheet 7 can be manufactured reliably.

  Further, since the second gap 60 is passed immediately after passing through the first gap 50 and deformed into a sheet shape, the rolled sheet 7 having a more uniform sheet surface, that is, a rolled sheet with suppressed variation in thickness. 7 can be manufactured.

  As a result, the rolled sheet 7 in which particles are uniformly dispersed in the resin component at a high blending ratio and variation in sheet thickness is suppressed can be efficiently produced.

  Further, according to the sheet manufacturing method and the sheet manufacturing apparatus 1, in the second gap passing step, the separator 9 is brought into contact with the upper surface of the pre-rolling sheet 7 a formed by the first gap 50 and rolled together with the separator 9. The front sheet 7 a is passed through the second gap 60. Therefore, the laminated sheet 10 in which the separator 9 is laminated on the surface of the rolled sheet 7 can be efficiently manufactured.

  In addition, the sheet 7a before rolling can be passed through the second gap without using the separator 9. Thereby, the rolled sheet 7 in which the separator 9 is not laminated | stacked can be manufactured efficiently.

  Preferably, from the viewpoint of storage and conveyance of the product, the sheet 7a before rolling is passed through the second gap 60 together with the separator 9 to obtain the laminated sheet 10.

  Further, in the sheet manufacturing method and the sheet manufacturing apparatus 1, in the second gap passage step, the unrolled sheet 7a is passed through the second gap 60 while being heated. Specifically, the support roll 51 and the rolling roll 54 are passed through the second gap 60 while being heated.

  Therefore, since the second gap 60 can be passed while heating and softening the resin component, the variation in sheet thickness can be further suppressed.

  Moreover, in the conventional sheet manufacturing apparatus, the rolling roll 54 a is provided downstream in the conveying direction of the support roll 51 as shown in FIG. Therefore, in the conventional sheet manufacturing apparatus, when the support roll 51 and the rolling roll 54 are heated, the pre-rolling sheet 7a is heated by the support roll 51 and then conveyed, and then rolled again by the rolling roll 54a. And it will be heated and will be formed in the rolling sheet 7. FIG. If it does so, since the time and frequency | count that the resin component in a sheet | seat will be heated will increase, the malfunction which a resin component will carry out an excessive curing reaction will arise.

  On the other hand, in the sheet manufacturing apparatus 1 in FIG. 2, when the rolled sheet 7 a shown in FIG. 3 passes through the support roll 51, it is rolled by the rolling roll 54. The number of times can be reduced, and the curing reaction of the resin component can be suppressed.

  Further, in the sheet manufacturing method and the sheet manufacturing apparatus 1, if the mixing ratio of the particles in the rolled sheet 7 exceeds 30% by volume, the laminated sheet 10 has specific physical properties (for example, heat dissipation (thermal conductivity). ), Conductivity (conductivity), insulation, magnetism, etc.) can be sufficiently exhibited.

  As a result, the rolled sheet 7 is preferably used as a heat conductive sheet such as a heat radiating sheet, for example, a conductive sheet such as an electrode material or a current collector, for example, an insulating sheet such as a magnetic sheet. it can.

  Furthermore, when the particles are formed of an insulating material and the resin component contains an insulating thermosetting resin component, the laminated sheet 10 is made of, for example, a thermosetting insulating resin such as a thermosetting resin sheet. It can also be suitably used as a sheet (specifically, a sealing sheet).

  Further, according to the sheet manufacturing method and the sheet manufacturing apparatus 1, each of the pair of gears 32 includes the inclined teeth 35 that mesh with each other, and the tooth traces of the inclined teeth 35 are downstream in the rotational direction of the pair of gears 32. From the rotation direction to the downstream side in the rotation direction, and is inclined outward in the rotation axis direction.

  Therefore, the composition supplied to the gear structure 4 can be reliably spread to both outer sides in the left-right direction. As a result, the wide rolled sheet 7 can be more reliably manufactured while efficiently dispersing the particles in the resin component.

  Moreover, according to the sheet manufacturing method and the sheet manufacturing apparatus 1, the composition reaching the gear structure 4 is kneaded and extruded in advance by the kneading extruder 2, so that the dispersibility of the particles in the resin component can be further improved. it can.

  As a result, the rolled sheet 7 can be produced from a composition in which the particles and the resin component are sufficiently kneaded.

  In addition, according to the sheet manufacturing method and the sheet manufacturing apparatus 1, since the laminated sheet 10 is wound up in a roll shape, the roll-shaped rolled sheet 7 can be efficiently manufactured.

  Moreover, in the manufacturing method of the lamination sheet 10, and the sheet manufacturing apparatus 1, the diameter of the support roll 51 can be 150 mm or less.

Therefore, thermal expansion (thermal crown shape) when the support roll 51 is heated can be suppressed, and variations in the width direction of the sheet thickness can be further suppressed.
(Modification)
7, 8, and 9, members similar to those in the embodiment of FIG. 1 are given the same reference numerals, and the details thereof are omitted.

  In the embodiment of FIGS. 1 and 2, the sheet manufacturing apparatus 1 is configured such that the laminated sheet 10 passes the tension roll 52 after passing through the second gap. As shown in FIG. 3, after the laminated sheet 10 passes through the second gap, the laminated sheet 10 may pass through the gap between the smoothing roll 57 and the rolling roll 58 as the smoothing member.

  The smoothing roll 57 and the rolling roll 58 are disposed between the support roll 51 and the tension roll 52 in the transport direction.

  The smoothing roll 57 is disposed so as to be opposed to the rolling roll 58 with an interval therebetween, and is configured to be able to press against the rolling roll 58.

  The rolling roll 58 is configured to receive pressure from the smoothing roll 57 and to roll with respect to the laminated sheet 10, and its upper end portion is the upper end of the support roll 51 when projected in the front-rear direction. It arrange | positions so that it may become the same position as a part.

  One of the smoothing roll 57 and the rolling roll 58 is formed from heat-resistant NBR, and the other is formed from a metal whose peripheral surface of stainless steel (such as SUS304) is treated with chrome plating. It is provided in front of the roll 51 with a gap. The respective rotation axes of the smoothing roll 57 and the rolling roll 58 are arranged so as to extend in the left-right direction. The smoothing roll 57 and the rolling roll 58 are configured so that the temperature can be adjusted by a heating medium.

  The length in the rotation axis direction (the length in the left-right direction) of the smoothing roll 57 and the rolling roll 58 is, for example, 210 mm or more, preferably 310 mm or more, and for example, 2040 mm or less.

  From the viewpoint of smoothing the sheet surface, the diameter (outer diameter) of the smoothing roll 57 and the rolling roll 58 is, for example, 30 mm or more, preferably 50 mm or more, and for example, 300 mm or less.

  In particular, when the smoothing roll 57 or the rolling roll 58 is formed of a metal whose stainless steel (SUS304 or the like) has been subjected to chrome plating, its diameter suppresses thermal expansion (thermal crown shape). From the viewpoint, the upper limit is, for example, 300 mm or less, preferably 150 mm or less.

  The rotation speeds of the smoothing roll 57 and the rolling roll 58 are substantially equal to the rotation speed of the support roll 51, respectively.

  Although the temperature of the smoothing roll 57 and the rolling roll 58 does not need to be heated, when heated, it is set to a low temperature at which the resin component does not undergo a curing reaction. Specifically, it is, for example, 200 ° C. or lower, preferably 150 ° C. or lower, for example, 50 ° C. or higher, preferably 70 ° C. or higher.

  In the embodiment of FIG. 7, the laminated sheet 10 is passed between the smoothing roll 57 and the rolling roll 58 after the second gap passing step. For this reason, the sheet surface can be made smooth and glossy.

  In the embodiment shown in FIGS. 1 and 6, the pair of gears 32 are prevented from communicating with the first storage portion 27 and the second storage portion 28 via the tooth spaces 75 between the tooth traces of the inclined teeth 35. For example, as shown in FIG. 8, the pair of gears 32, the first storage portion 27, and the second storage portion 28 have tooth spaces 75 a between the tooth traces of the inclined teeth 35. It can also comprise so that it may communicate via.

  Preferably, as shown in FIG. 1 and FIG. 6, the pair of gears 32 communicates with the first storage portion 27 and the second storage portion 28 via a tooth gap 75 between the tooth traces of the inclined teeth 35. Configure not to.

  In the embodiment of FIG. 8, the composition can freely move between the first reservoir 27 and the second reservoir 28 via the tooth gap 75. Therefore, with the movement of the tooth gap 75 from the upstream to the downstream in the rotation direction R <b> 2 of the pair of gears 32, it may be insufficient for efficient conveyance of the composition.

  On the other hand, according to the embodiment of FIGS. 1 and 6, it is possible to restrict the composition from freely moving between the first reservoir 27 and the second reservoir 28 via the tooth gap, and the composition is highly efficient. Can be transported.

  In the embodiment of FIG. 1, the kneading extruder 2 and the gear structure 4 are heated. However, for example, the kneading extruder 2 and the gear structure 4 may not be heated.

  Preferably, the kneading extruder 2 and the gear structure 4 are heated.

  By heating the kneading extruder 2, the particles can be further dispersed in the resin component. By heating the gear structure 4, the composition can be more easily deformed in the left-right direction.

  Further, in the embodiment of FIGS. 1 and 5, the inclined teeth 35 of the pair of gears 32 are formed in a point contact type curved shape, but, for example, are formed in an involute curved shape as shown in FIG. You can also

  Preferably, as in the embodiment of FIG. 5, the inclined teeth 35 of the pair of gears 32 are formed in a point contact type curved shape.

  According to the embodiment of FIG. 5, unlike the embodiment of FIG. 9, it is possible to prevent the storage portion where the composition is accumulated from being formed on the concave surface 42 in the movement of the meshing portion of the pair of gears 32.

  However, according to the embodiment of FIG. 9, when the resin component contains a thermosetting resin component, when a cured product is generated in the storage portion 65 and mixed with the rolled sheet 7 as a product, the rolled sheet 7. The quality of the product may deteriorate.

  On the other hand, according to the embodiment of FIG. 5, generation of the above-described cured product and mixing into the rolled sheet 7 can be prevented, so that the quality of the rolled sheet 7 can be improved.

  In the present invention, the sheet includes the concept of a tape or a film.

  Hereinafter, the present invention will be described more specifically with reference to examples and comparative examples. However, the present invention is not limited to the examples and comparative examples.

Examples 1-3
In accordance with the following formulation, each component (particles and resin component) was mixed and stirred to prepare a semi-solid mixture (composition). Separately, a sheet manufacturing apparatus 1 having the dimensions shown in Table 1 and the apparatus configuration shown in FIGS. 1 and 2 was prepared. Note that, as the support roll 51 and the rolling roll 54, rolls having a diameter of 200 mm and a length of 600 mm were used. Subsequently, the laminated sheet 10 (thermosetting insulating resin sheet) was manufactured by the sheet manufacturing apparatus 1 described above.

  In the laminated sheets 10 of Examples 1 to 3, the particles were uniformly dispersed in the resin component. Moreover, in the laminated sheet 10 of Examples 1 to 3, the volume-based ratio of particles in the rolled sheet 7 (sheet-shaped composition) was 78% by volume.

(Combination prescription)
Spherical fused silica powder (trade name “FB-9454”, manufactured by Denki Kagaku Kogyo Co., Ltd., average particle size 17 μm, specific gravity 2.2 g / cm ³ ): 83.85% by mass
・ Bisphenol F type epoxy resin (thermosetting resin, trade name “YSLV-80XY”
”Manufactured by Nippon Steel Chemical Co., Ltd., epoxy equivalent 200 g / eq. , Softening point 80 ° C.): 6% by mass
Phenol aralkyl resin (curing agent, trade name “MEH7851SS”, manufactured by Meiwa Kasei Co., Ltd., hydroxyl group equivalent 203 g / eq., Softening point 67 ° C.): 6% by mass
2-phenyl-4-methyl-5-hydroxymethylimidazole (curing accelerator, trade name “2PHZ”, manufactured by Shikoku Kasei Kogyo Co., Ltd.): 0.15% by mass
・ Butyl acrylate-acrylonitrile-glycidyl methacrylate copolymer (thermoplastic resin, cyano-epoxy modified acrylic resin): 4% by mass
Comparative Examples 1-3
In the same manner as in Example 1, each component (particle and resin component) was blended and stirred to prepare a semisolid mixture (composition).

  Separately, a sheet manufacturing apparatus A having the dimensions shown in Table 1 and the apparatus configuration of FIG. 10 was prepared.

  In the sheet manufacturing apparatus A of FIG. 10, the rolling roll 54 a (diameter 200 mm, length 600 mm) is not disposed opposite to the support roll 51 but is opposed to the front side with a gap from the support roll 51. On the lower side of the rolling roll 54a, a metal roll 55 (diameter 200 mm, length 600 mm) is disposed oppositely. In addition, the separator feed roll 59 is disposed so as to face the upper side of the rolling roll 54a with an interval. 10 is configured such that the separator 9 passes between the rolling roll 54a and the metal roll 55 together with the sheet 13 with the base material.

  Subsequently, the laminated sheet (thermosetting insulating resin sheet) shown in Table 1 was manufactured by the sheet manufacturing apparatus A described above.

  In the laminated sheets of Comparative Examples 1 to 3, the particles were uniformly dispersed in the resin component. Moreover, in the laminated sheets of Comparative Examples 1 to 3, the volume-based ratio of particles was 78% by volume.

(Measurement of dispersion of laminated sheets)
The variation of the sheet before and after rolling was measured according to the following.

  In each example and each comparative example, the sheet with base material 13 (the sheet in which the sheet 7a before rolling was laminated on the base material 8) immediately after passing through the first gap 50 (200 μm) was taken out, and the sheet with base material 13 was taken out. Using a contact-type film thickness meter (PEACOCK R1-205, manufactured by Ozaki Seisakusho Co., Ltd.), the thickness of the sheet 13 with a substrate was measured at 10 points at intervals of 50 mm. A value obtained by subtracting the first gap 50 (200 μm) from the maximum value among the 10 points was defined as a variation (maximum variation) of the sheet before rolling.

  Moreover, in each Example, the lamination sheet 10 (sheet in which the base material 8 and the separator 9 were laminated | stacked on both surfaces of the rolling sheet 7) obtained by passing the 2nd clearance gap 60 and a smooth member was taken out, and the lamination sheet 10 Ten points of thickness of the laminated sheet 10 were measured at intervals of 50 mm using a contact-type film thickness meter with respect to a width of 500 mm. A value obtained by subtracting the total value of the value of the first gap 50 and the thickness of the separator 9 from the maximum value of the 10 points was defined as the variation (maximum variation) of the sheet after rolling.

  In each comparative example, the laminated sheet 10 obtained by passing through the rolling roll 54 and the metal roll 55 was taken out, and the variation of the sheet after rolling was measured in the same manner as each example.

  These results are shown in Table 1.

(Resin component curing reaction rate)
It was measured with a differential scanning calorimeter DSC Q2000 (TA Instruments).

  The results are shown in Table 1.

DESCRIPTION OF SYMBOLS 1 Sheet manufacturing apparatus 2 Kneading extruder 4 Gear structure 5 Sheet formation part 6 Winding part 7 Rolled sheet 7a Sheet 9 before rolling 9 Separator 10 Laminated sheet 32 A pair of gear 35 Inclined tooth 50 First clearance 51 Support roll 53 Winding Take-up roll 54 Rolling roll 56 Substrate delivery roll 57 Smoothing roll 58 Rolling roll 59 Separator delivery roll 60 Second gap 63 Projection 75 Tooth groove

Claims (16)

A deformation conveying step of conveying the composition containing the particles and the resin component while deforming the composition in the rotation axis direction of the gear using a gear structure including a pair of gears;
After the deforming and conveying step, while the composition is supported and conveyed by the moving support, the moving support and a doctor disposed so as to face the moving support so that a first gap is provided. A first gap passing step of passing through the first gap, and
After the first gap passing step, the composition is passed through the second gap between the moving support and a sheet adjusting member that is arranged to face the moving support so that a second gap is provided. The manufacturing method of the sheet | seat characterized by providing the 2nd clearance passage process to make.   2. The sheet manufacturing method according to claim 1, wherein, in the second gap passing step, a protective member is brought into contact with the composition, and the composition is allowed to pass through the second gap together with the protective member.   The method for producing a sheet according to claim 1 or 2, wherein, in the second gap passing step, the composition is passed through the second gap while being heated.   The sheet manufacturing method according to claim 1, wherein the surface of the sheet is smoothed after the second gap passing step.   The method for producing a sheet according to any one of claims 1 to 4, wherein a mixing ratio of the particles in the sheet exceeds 30% by volume. Each of the pair of gears includes oblique teeth that mesh with each other;
The inclined tooth trace of the inclined tooth is inclined outward in the rotational axis direction from the downstream side in the rotational direction to the downstream side in the rotational direction of the pair of gears. The manufacturing method of the sheet | seat of any one.   The method for producing a sheet according to any one of claims 1 to 6, further comprising a kneading and extruding step of kneading and extruding the particles and the resin component before the deforming and conveying step. The sheet manufacturing method according to any one of claims 1 to 7, further comprising a winding step of winding the sheet into a roll after the second gap passing step. A sheet manufacturing apparatus configured to manufacture a sheet from a composition containing particles and a resin component,
A gear structure comprising a pair of gears, the gear structure configured to convey the composition while being deformed in the direction of the rotational axis of the gear; and
A movable support provided downstream of the gear structure in the conveyance direction and configured to support and convey the composition is disposed to face the movable support so that a first gap is provided. A sheet forming unit including a doctor and a sheet adjusting member arranged to face the moving support so as to provide a second gap, and the composition passes through the first gap and the second gap in order. The sheet forming part configured to allow
A sheet manufacturing apparatus comprising:   The sheet manufacturing apparatus according to claim 9, further comprising a protection member sending body configured to pass a protection member through the second gap.   The sheet manufacturing apparatus according to claim 9 or 10, wherein the movable support body and the sheet adjusting member include a heating unit.   The sheet manufacturing apparatus according to claim 9, wherein the sheet forming unit further includes a smooth member.   It is comprised so that the said sheet | seat in which the volume ratio of the said particle | grains exceeds 30 volume% may be comprised, The sheet manufacturing apparatus of any one of Claims 9-12 characterized by the above-mentioned. Each of the pair of gears includes oblique teeth that mesh with each other;
14. The oblique tooth traces of the pair of gears are inclined outward in the rotational axis direction from the downstream side in the rotational direction to the upstream side in the rotational direction. The sheet manufacturing apparatus of any one of Claims.   The kneading extruder further provided in the conveyance direction upstream of the gear structure and configured to knead the particles and the resin component, further comprising a kneading extruder. The sheet manufacturing apparatus described in 1.   16. The apparatus according to claim 9, further comprising a winding unit that is provided on the downstream side in the conveyance direction of the sheet forming unit and configured to wind the sheet in a roll shape. The sheet manufacturing apparatus described.

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