JP2009293163A - Method and apparatus for producing corrugated material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for producing a corrugated material without applying press force onto a sheet-like base material and without excessively applying tensile force thereonto in forming the base material into a corrugated shape. <P>SOLUTION: An apparatus for producing the corrugated material includes the following scheme: A plurality of rods 21 and 22 with respective tapered front guides 41 and 42 are collocated so as to be set apart from one another. The respective tips 51 and 52 of the rods 21 and 22 are so designed that the spacings in the height direction of the adjoining tips 51 and 52 are made greater than the thickness of a base material 1 to ensure the base material 1 to be guided smoothly into between the tips 51 and 52. Thus, the base material 1 is ensured to form corrugatedly while moving in the longitudinal direction of the rods 21 and 22 and passing through the respective spacings between the rods 21 and 22. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a method for manufacturing a corrugated material from a sheet-like base material, and more particularly to a method and a manufacturing apparatus for manufacturing a corrugated material such as a nonwoven fabric sheet made of thermoplastic resin fibers or filter paper.

  Conventionally, corrugated corrugated materials have been used in various fields, and the tops of two corrugated materials are joined together to form a honeycomb and used as a structural material, or a nonwoven sheet is corrugated to provide a filter. Examples of use are given.

  In the method of manufacturing a honeycomb core made of fiber reinforced plastic of Patent Document 1, prior to manufacturing the honeycomb core by joining the bottom and top of the corrugated sheet, an example of forming a belt-like sheet of fiber substrate using a forming die Is disclosed. The molding uses a forming mold formed so that the mold surface has a corrugated shape and the size of the mold surface gradually changes. First, a belt-like sheet is supplied to the forming mold so that the mold surface conforms to the mold surface. Narrow down. And after impregnating resin to the narrowed strip | belt-shaped sheet | seat, the corrugated sheet is shape | molded by the heating-pressing process.

In the manufacturing method of the multilayer filter of Patent Document 2, two filter media are supplied to a corrugating machine composed of a pair of molding rolls, and heated and pressed at the softening temperature of one of the filter media. An example in which a sheet of filter media is thermally bonded and formed into a corrugated material is disclosed.
Japanese Patent Laid-Open No. 9-207252 (see [Summary]) JP 2005-342633 A (see [Summary])

  The method for manufacturing a honeycomb core disclosed in Patent Document 1 is a method for manufacturing a honeycomb core having a sufficient strength as a structural material. By applying a resin to a fiber base material, impregnating and mixing, and heating and pressurizing. The fiber substrate is reinforced. Therefore, since the resin is impregnated between the fibers of the base material, the corrugated plate obtained by this manufacturing method cannot be used as a filter.

  In the manufacturing method of the corrugated material disclosed in Patent Document 2, the filtering material supplied to the corrugating machine is heated and pressed between a pair of rolls in which concave and convex grooves are formed in the axial direction of the roll. The material is molded in a compressed state. In addition to being heated and pressed between the pair of rolls, the compressed state is brought about by being excessively pulled in the width direction because the filter medium is simultaneously formed over the entire width by the unevenness of the outer peripheral surface of the roll. Therefore, when a nonwoven fabric sheet is used as the filter medium, the filter medium before corrugation and the filter medium after molding have different filtration capacities because the thickness is reduced and the gap between fibers is reduced.

  Further, in a corrugating machine using a pair of rolls, the corrugated groove shape of the corrugated material is limited to a shape whose width increases from the bottom toward the opening, and the width of the opening is wider than the width of the bottom. It is difficult to form a so-called dovetail shape that is narrower.

  The present invention has been made paying attention to such problems, and the object of the present invention is not to apply a pressing force to the base material when forming the sheet-like base material into a corrugated shape, and excessively. It is providing the manufacturing method of the corrugated material which can be manufactured without pulling.

  In order to solve the above problem, the invention of the method for producing a corrugated material according to claim 1 is the corrugated material producing method for forming a sheet-like base material into a corrugated shape, wherein the front part is a tapered guide part. A plurality of rod-shaped bodies that are spaced apart from each other are arranged side by side, and the base material is formed in a corrugated shape by moving in the longitudinal direction of the rod-shaped body and passing between each of the rod-shaped bodies. It is characterized by.

  According to the first aspect of the present invention, the plurality of rod-shaped bodies having the tapered guide portions are arranged in parallel in a state of being separated from each other. Then, when the sheet-like base material is moved in the longitudinal direction of the rod-shaped body so that the base material is guided between the tapered guide portions of the respective rod-shaped bodies, the base material slides on the rod-shaped body. Passes between the rods while moving. At that time, after getting over the base material in the direction perpendicular to the direction of movement of the base material, go over under the next bar and then get over the next bar. For example, the shape of the substrate becomes a waveform. Therefore, a base material will be shape | molded by the corrugated shape by passing between several rod-shaped bodies.

  According to a second aspect of the present invention, in the corrugated material manufacturing method according to the first aspect, each of the tapered tip portions of the rod-like body has the same height of every other tip portion. The first row is divided into a second row adjacent to the tip portion belonging to the first row and having the same height of the tip portion, and the tip portion of the first row and the tip of the second row The gap in the height direction with respect to the portion is larger than the thickness of the base material, and the base material is guided in the gap.

  According to invention of Claim 2, a base material is easily guided between the front-end | tip part of a 1st row | line | column, and the front-end | tip part of a 2nd row | line. Then, the height of the rod-shaped body is changed as it goes backward from the tip portion in each rod-shaped body, for example, the height of the rod-shaped body having the tip portion of the first row and the rod-like body having the tip portion of the second row. Are made the same, the substrate is formed into a shape in which the shape along the outer periphery of the upper half of the rod-shaped body and the shape along the outer periphery of the lower half of the rod-shaped body are alternately repeated.

  According to a third aspect of the present invention, there is provided the corrugated material manufacturing method according to the second aspect, wherein a base portion of the rod-shaped body is provided with a molding portion, and the base material passes through the molding portion, whereby the base material is provided. Is formed into a corrugated shape.

  According to invention of Claim 3, the shaping | molding part of a rod-shaped body is formed in the shape corresponding to the shape of the top part back surface of a corrugated material, or the shape of a bottom part surface. Then, the shape of the molded portion of every other rod-shaped body should correspond to the shape of the top back surface of the corrugated material, and the shape of the molded portion of the other rod-shaped body should correspond to the shape of the bottom surface of the corrugated material. For example, the base material that passes through each molding part is molded into a predetermined corrugated shape.

  According to a fourth aspect of the present invention, in the method for manufacturing a corrugated material according to the third aspect, the molded portions of the rod-shaped bodies belonging to the first row are arranged in a row having the same height and belong to the second row. The forming portions in the rod-shaped body are arranged in a row having the same height, and the height relationship between the tip portion of the first row and the tip portion of the second row is the height relationship in each forming portion. The substrate is formed into a corrugated shape by passing through the respective forming portions.

  According to the fourth aspect of the present invention, in the adjacent rod-shaped bodies, the height relationship between the tip portions and the height relationship between the molded portions are reversed. If the difference in height between adjacent molding parts is large, the back surface of the top part and the surface of the bottom part are molded by the molding part, and the surface connecting the top part and the bottom surface is in contact with the molding part. Molded with or without. Therefore, the depth of the corrugated material groove can be increased without changing the shape of the molded portion.

  According to a fifth aspect of the present invention, in the method for manufacturing a corrugated material according to the fourth aspect, when viewed from a direction orthogonal to the arrangement direction of the molded portions arranged in the row having the same height, The molding part is arranged so that a gap adjacent to each other is smaller than the thickness of the base material, and the base material is molded into a corrugated shape by passing through the molding part. is there.

  According to the fifth aspect of the present invention, the adjacent molded portions are arranged such that their heights are different from each other and the gap between them is smaller than the thickness of the base material. Therefore, the base material that connects the base material that is in contact with the molding part of a certain rod-shaped body and the base material that is in contact with the molding part of the adjacent bar-shaped body connects the molding parts obliquely. It will be. Therefore, the groove formed into a corrugated shape by the base material passing through these forming portions is a so-called dovetail groove having a narrow space between the top portions and a wide inside.

  Invention of Claim 6 is a manufacturing method of the corrugated material as described in any one of Claim 3 thru | or 5, The said base material is heated by a heating means by the time it reaches the said formation part, The said shaping | molding It is characterized by being cooled by the cooling means before passing through the section.

  According to the invention described in claim 6, since the base material is heated by the heating means before reaching the molding part and cooled until it passes through the molding part, if the base material is a thermoplastic resin, The base material molded into a corrugated shape can maintain its shape.

  The invention according to claim 7 is the method for producing a corrugated material according to any one of claims 3 to 6, wherein the base material moves in the longitudinal direction of the rod-shaped body, and each of the rod-shaped bodies. When it passes between, it receives the tension | tensile_strength of the direction orthogonal to the moving direction, and is in a tension | tensile_strength while passing the said shaping | molding part.

  According to the seventh aspect of the present invention, since the base material is adapted to receive tension in a direction orthogonal to the pulled direction, it can pass through the gaps of the plurality of rod-shaped bodies without slack. it can. Moreover, since the base material is in a tensioned state by a predetermined tension while passing through the molding part, it is molded along the shape of the molding part.

  Invention of Claim 8 is a manufacturing method of the corrugated material as described in any one of Claim 1 thru | or 7, The said base material is a nonwoven fabric sheet made from a thermoplastic resin fiber, It is characterized by the above-mentioned. Is.

  The invention of the corrugated material manufacturing apparatus according to claim 9 is the corrugated material manufacturing apparatus for forming a sheet-like base material into a corrugated shape, wherein the rod-shaped bodies whose front portions are tapered guide portions are mutually connected. A plurality of parts are arranged apart from each other, and a forming part for providing a corrugated shape to the base material is provided at a base part of the rod-like body.

  According to the invention described in claim 9, the front part is a tapered guide part that guides the base material, and the base part is a plurality of rod-like bodies that are formed parts that impart a corrugated shape to the base material. The corrugated material can be manufactured by a device having a simple structure that is simply provided side by side.

  A tenth aspect of the present invention is the corrugated material manufacturing apparatus according to the ninth aspect of the present invention, comprising: heating means for heating the base material entering the molding portion; and the base material reaching the molding portion. And a cooling means for cooling.

  According to the invention described in claim 10, since the heating means and the cooling means are provided, if the nonwoven fabric sheet made of thermoplastic resin fibers is used as the base material, the base material can be easily formed into a corrugated material. Can do.

  ADVANTAGE OF THE INVENTION According to this invention, the manufacturing method of the corrugated material which shape | molds a sheet-like base material in a corrugated shape with the simple apparatus which arranged the several rod-shaped body in parallel can be provided. Further, since it can be produced without applying a pressing force to the base material during molding and without being excessively pulled, a method for producing a corrugated material that can maintain the original physical properties of the base material can be provided.

(First embodiment)
DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments embodying the present invention will be described with reference to FIGS.
As shown in FIGS. 1 and 2, the apparatus used in the present embodiment is supported by a rod-like body 21 supported by a frame body (not shown) via a support portion 31, and also by a frame body via a support portion 32. Every other rod-shaped body 22 is arranged in parallel. Adjacent rod-like body 21 and rod-like body 22 are arranged apart from each other. The rod-shaped body 21 of the present embodiment is a solid round bar having a circular cross-sectional shape, and the front portion of the rod-shaped body 21 is a tapered guide portion 41 that is inclined upward, and the tip 51 is It is spherical. The rod-like body 22 is a solid round rod having a circular cross-sectional shape, and the front portion of the rod-like body 22 is a tapered guide portion 42 inclined downward, and the tip portion 52 is spherical. ing.

  Formed portions 61 and 62 are formed at the base portions (right side in FIG. 2) of the rod-shaped body 21 and the rod-shaped body 22, and as shown in FIG. 3C, they are arranged on the same horizontal reference plane K. Yes. The forming portion 61 of the rod-shaped body 21 is configured to form the base material 1 on the outer peripheral surface 61a at the lower portion thereof. Therefore, the rod-shaped body 21 in the present embodiment is supported by the support portion 31 on the upper portion of the molding portion 61 on the side opposite to the outer peripheral surface 61a. Similarly, the forming portion 62 of the rod-like body 22 is configured to form the base material 1 on the outer peripheral surface 62a at the top thereof. Therefore, the rod-shaped body 22 in the present embodiment is supported by the support portion 32 at the lower portion of the molding portion 62 on the side opposite to the outer peripheral surface 62a.

  The tip portions 51 of the rod-like bodies 21 arranged in parallel every other are arranged at the same height as the first row. Moreover, the front-end | tip part 52 of the rod-shaped body 22 arranged in parallel every other is arrange | positioned at the same height as a 2nd row | line | column. As shown in FIG. 2, the gap S1 between the tip portion 51 and the tip portion 52 is larger than the thickness of the substrate 1, and when the substrate 1 moves in the direction of the arrow in the figure, the substrate 1 The tip 1a is easily guided between the tip 51 and the tip 52. The base material 1 is pulled by a pulling means (not shown) and moves in the longitudinal direction of the rod-like bodies 21 and 22 (arrow direction in FIG. 1).

  Next, the situation where the sheet-like base material 1 is formed into the corrugated material 13 will be described with reference to FIGS. In addition, the base material 1 in this embodiment is a nonwoven fabric sheet made of thermoplastic resin fibers, and at least some of the fibers have a low melting point for binding other fibers as a binder.

  As shown in FIG. 3 (a), the base material 1 guided between the first row of leading end portions 51 and the second row of leading end portions 52 is pulled at the width end portion from the left and right by a tension device (not shown). The tip portion 51 is supported between the tip portion 52 and the tip portion 52. At this time, the tensile force acting on the substrate 1 is controlled to a weak force that does not cause the substrate 1 to loosen.

  As shown in FIG. 3B, the base material 1 that has moved between the guide portion 41 located on the base side of the tip portion 51 and the guide portion 42 located on the base side of the tip portion 52 is formed by the guide portion. Guided downward by 41, guided upward by the guide 42, and deformed into a wave shape. At this time, hot air is blown from the heating means 71 and 72 shown in FIG. 2, and the base material 1 is heated to a temperature at which the low melting point resin fibers constituting a part thereof are melted.

  As shown in FIG.3 (c), all the shaping | molding parts 61 and 62 are arrange | positioned along the horizontal reference plane K, and the base material 1 which has slid in the clearance gap between these shaping | molding parts 61 and 62 is as follows. The corrugated shape is formed by the forming portions 61 and 62. At this time, the base material 1 is in a predetermined tension state in both the pulling direction and the width direction, and is molded along the outer peripheral shape of the outer peripheral surface 62a and the outer peripheral surface 61a. Further, at this time, since the molten resin fibers are blown by the cooling means 81 and 82 shown in FIG. 2 and the molten resin fibers are combined with other resin fibers and solidified, the base material 1 has the outer peripheral shape of the molding portions 61 and 62. It is fixed to the shape along.

  And the base material 1 shape | molded by the corrugated shape is further pulled, after passing the shaping | molding parts 61 and 62, and it is cut | disconnected by predetermined length with the cutting device which is not shown in figure, or rolls to the winding device which is not shown in figure. Or rolled up. Therefore, according to the manufacturing method and apparatus of this embodiment, it is possible to manufacture the corrugated material continuously.

  Although the cross-sectional shape of the molding parts 61 and 62 in this embodiment is circular, for example, by setting the cross-sectional shape to a triangle, a trapezoid, or a right-angled square (both not shown), a triangle and an inverted triangle, a trapezoid and an inverted trapezoid, or A corrugated material having a corrugated shape in which right-angled squares are alternately arranged can be manufactured.

Therefore, according to the manufacturing method of the corrugated material 13 of the above embodiment, the following effects can be obtained.
(1) In the said embodiment, the several rod-shaped bodies 21 and 22 which have the tapered guide parts 41 and 42 were arranged in parallel in the state mutually spaced apart. And since the base material 1 was moved to the longitudinal direction of the rod-shaped bodies 21 and 22, and it was made to guide between the front-end | tip part 51 and the front-end | tip part 52 of each rod-shaped body 21 and 22, The shape can be a waveform. Therefore, the corrugated material 13 can be easily manufactured by passing the base material 1 between the plurality of rod-like bodies 21 and 22.

  (2) In the above-described embodiment, the tip portions 51 arranged side by side are arranged at the same height to form the first row, and the tip portions 52 arranged side by side in the same manner are arranged at the same height. And the second row, and the gap between the first row and the second row is larger than the thickness of the substrate 1. Therefore, the front end 1a of the base material 1 can be easily guided to the gap between the first row and the second row without being deformed in advance into a waveform.

  (3) In the above embodiment, the guide portions 41 and 42 are inclined in the rod-like bodies 21 and 22. Then, the height of the molded portion 61 of the rod-shaped body 21 having the first row tip portion 51 and the molded portion 62 of the rod-shaped body 22 having the second row tip portion 52 were made the same. Therefore, a corrugated material having a shape in which the shape along the outer peripheral shape of the upper half of the rod-shaped body 22 and the shape along the outer peripheral shape of the lower half of the rod-shaped body 21 are alternately repeated from the sheet-like base material 1. A manufacturing method for manufacturing can be provided.

  (4) In the above embodiment, the shape of the outer peripheral surface 62 a of the molding part 62 corresponds to the shape of the back surface 15 of the top 14 of the corrugated material 13, and the shape of the outer peripheral surface 61 a of the molding part 61 is the bottom 16 of the corrugated material 13. The outer peripheral surface 62a and the outer peripheral surface 61a were formed so as to correspond to the surface shape. And the manufacturing method which manufactures the corrugated material 13 which has predetermined | prescribed cross-sectional shape by allowing the base material 1 to pass between those shaping | molding parts 61 and 62 can be provided.

  (5) In the above embodiment, the base material 1 is heated by blowing hot air from the heating means 71 and 72 until the base material 1 moves and reaches the forming parts 61 and 62. And until the base material 1 passed the shaping | molding parts 61 and 62, the cold air was sprayed from the cooling means 81 and 82, and the base material 1 was cooled. Therefore, since the low melting point resin fibers constituting the substrate 1 are melted and solidified in a state where other fibers are bonded, the corrugated material that can maintain the shape of the corrugated material formed from the sheet-like substrate 1 Can be provided.

  (6) In the above embodiment, the base material 1 is pulled and moved in the longitudinal direction of the rod-like bodies 21 and 22 and receives tension in a direction orthogonal to the moving direction. Therefore, the base material 1 can pass through the gaps between the plurality of rod-like bodies 21 and 22 without slackening. Moreover, since the base material 1 is in a tensioned state with a predetermined tension while passing through the forming portions 61 and 62, the base material 1 is formed along the shape of the outer peripheral surface 62a and the outer peripheral surface 61a. Therefore, since the base material 1 is not compressed by receiving a pressing force and is not stretched by receiving an excessive tensile force, the physical properties of the base material 1 before molding, for example, physical properties such as thickness and apparent density. Can be provided.

  (7) In the above-described embodiment, the corrugated material that is further pulled through the forming portions 61 and 62 is cut into a predetermined length or wound into a roll. Therefore, the manufacturing method which can manufacture a corrugated material continuously can be provided.

(Second Embodiment)
Next, a second embodiment of the method for manufacturing the corrugated material 13 embodying the present invention will be described with reference to FIGS. 5 and 6 focusing on portions different from the first embodiment.

  As shown in FIGS. 5 and 6, the molding portion 61 of the rod-shaped body 21 having the first row of tip portions 51 and the molding portion 62 of the rod-shaped body 22 having the second row of tip portions 52 have their heights. The center of the molding part 61 is located below the reference plane K, and the center of the molding part 62 is located above the reference plane K. In other words, the positional relationship in the height direction between the leading end portion 51 in the first row and the leading end portion 52 in the second row is reversed in the positional relationship between the molding portions 61 and 62. The reference surface K in the present embodiment is a surface corresponding to an intermediate position between the molding part 61 and the molding part 62.

  In this way, the rod-like body 21 and the rod-like body are so arranged that the positional relationship in the height direction between the leading end portion 51 in the first row and the leading end portion 52 in the second row is reversed in the positional relationship between the molding portions 61 and 62. 22, the base material 1 excluding the outer peripheral surface 62a and the portion along the outer peripheral surface 61a is molded by being placed under a predetermined tension between the outer peripheral surface 62a and the outer peripheral surface 61a. Therefore, a corrugated shape with a wide interval between the top portion 14 and the bottom portion 16 can be formed without placing the substrate 1 in an excessively compressed state.

  Further, as shown in FIG. 6C, when viewed from a direction orthogonal to the arrangement direction of the molding parts 61 and 62 arranged at the same height, a gap S2 between the adjacent molding parts 61 and the molding parts 62 is formed. The molding parts 61 and the molding parts 62 are alternately arranged so as to be smaller than the thickness of the substrate 1. And the base material 1 except the part along the outer peripheral surface 62a and the outer peripheral surface 61a is arrange | positioned diagonally, and the cross-sectional shape of the waveform of the base material 1 is narrow and has a wide inside, and is formed in groove shape.

  In addition, after moving from the state of FIG.6 (b) to the state of FIG.6 (c), after reversing the positional relationship of the rod-shaped body 21 and the rod-shaped body 22 in the height direction, the adjacent rod-shaped body 21 and a rod-shaped body are reversed. The cross-sectional shapes of the rod-shaped body 21 and the rod-shaped body 22 are expanded outwardly so that the gap S2 with respect to 22 is smaller than the thickness of the substrate 1. Accordingly, since the gap between the rod-shaped body 21 and the rod-shaped body 22 is always kept larger than the thickness of the base material 1, the base material 1 that passes through the gap is the outer peripheral surface of the rod-shaped body 21 and the rod-shaped body 22. Is not brought into a pressed state.

And in this 2nd Embodiment, in addition to the effect in 1st Embodiment, the following effects can be acquired.
(8) In the above embodiment, the rod-shaped body is so arranged that the positional relationship in the height direction between the first row of leading end portions 51 and the second row of leading end portions 52 is reversed in the positional relationship of the respective molding portions 61 and 62. 21 and a rod-shaped body 22 were arranged. And it enabled it to shape | mold only by putting the base material 1 except the part along the outer peripheral surface 62a and the outer peripheral surface 61a under a predetermined tension | tensile_strength state. Therefore, it is possible to manufacture the corrugated material 13 having a wide corrugated shape between the top portion 14 and the bottom portion 16 while substantially maintaining the properties before molding such as the thickness of the base material 1 and the gaps between the fibers.

  (9) In the above embodiment, when viewed from the direction orthogonal to the arrangement direction of the molding parts 61 and 62 arranged at the same height, the gap S2 between the adjacent molding parts 61 and the molding part 62 is the base material 1. The forming parts 61 and the forming parts 62 were alternately arranged so as to be smaller than the thickness. Further, the gap between the adjacent molding portions 61 and 62 was made larger than the thickness of the base material 1. Therefore, the base material 1 excluding the outer peripheral surface 62a and the portion along the outer peripheral surface 61a can be disposed obliquely, and the corrugated material 13 having a narrow opening and a wide inside and a groove-like cross-sectional shape can be manufactured.

(Example of change)
In addition, you may change the said both embodiment as follows.
-Although the front-end | tip parts 51 and 52 were made into spherical shape, it is not restricted to spherical shape, What kind of shape may be sufficient if it is a shape which does not become an obstacle of the movement of the base material 1 like a sharp shape.
Although the support portions 31 and 32 are provided in the molding portions 61 and 62 of the rod-shaped bodies 21 and 22, the support portions 31 and 32 are not limited to the molding portions 61 and 62 and may be provided in any portion of the rod-shaped bodies 21 and 22. , 22 may be provided over the entire length.
The rod-shaped bodies 21 and 22 are formed into an integral round bar shape. For example, as the rod-shaped bodies 21 and 22 having two heat insulating materials provided between the guide portions 41 and 42 and the molded portions 61 and 62, the molded portion 61 is used. , 62 may be used to cool the molding parts 61 and 62 by circulating cooling water. By doing so, the base material 1 is efficiently cooled.
-Although the rod-shaped bodies 21 and 22 were made into the shape of a solid round bar, you may make it blow a hot air or cold air with respect to the base material 1 from the inside as a hollow body which consists of a porous plate-shaped body.
-Although the nonwoven fabric sheet made from a thermoplastic resin fiber was used as the base material 1, the material of the base material 1 is not limited to this, and a base using filter paper containing cellulose, filter paper containing glass fiber, filter paper containing a fluororesin, or the like. Material 1 can also be used.

The perspective view which shows typically the apparatus used for the manufacturing method of 1st Embodiment of this invention. The right view which shows typically the apparatus used for the manufacturing method of 1st Embodiment of this invention. 2 shows the positional relationship when the base material moves in the direction of the arrow with respect to the rod-like body shown in FIG. 2, (a) is a cross-sectional view taken along arrow AA in FIG. (C) is CC sectional view taken on the line of FIG. The partial perspective view which shows the corrugated material manufactured by the manufacturing method of this invention. The right view which shows typically the apparatus used for the manufacturing method of 2nd Embodiment of this invention. FIG. 5 shows the positional relationship when the base material moves in the direction of the arrow with respect to the rod-shaped body shown in FIG. 5, (a) is a cross-sectional view taken along arrow AA in FIG. 5, (b) is a cross-sectional view taken along arrow BB in FIG. (C) is CC sectional view taken on the line of FIG.

Explanation of symbols

  S1 ... Gap, S2 ... Gap, 1 ... Substrate, 13 ... Corrugated material, 14 ... Top, 16 ... Bottom, 21,22 ... Bar, 41,42 ... Guide part, 51,52 ... Tip, 61,62 ... molding part, 71, 72 ... heating means, 81, 82 ... cooling means.

Claims (10)

  In the method for manufacturing a corrugated material, in which a sheet-like base material is formed into a corrugated shape, a plurality of rod-like bodies whose front portions are tapered guide portions are spaced apart from each other, and the base material is the rod-like shape. A method for producing a corrugated material, wherein the corrugated material is molded into a corrugated shape by moving in the longitudinal direction of the body and passing between the rod-shaped bodies.   Each tapered tip of the rod-shaped body has a first row in which every other tip is arranged at the same height, and is adjacent to the tip belonging to the first row and the height of the tip. Are divided into second rows arranged in the same manner, the gap in the height direction between the leading end of the first row and the leading end of the second row is larger than the thickness of the substrate, The corrugated material manufacturing method according to claim 1, wherein the base material is guided in the gap.   The base part of the rod-shaped body is provided with a molding part, and the base material is molded into a corrugated shape by passing the base material through the molding part. Method.   The forming portions in the rod-shaped bodies belonging to the first row are arranged in the same height row, the forming portions in the rod-like bodies belonging to the second row are arranged in the same height row, and the first row The height relationship between the tip portion and the tip portion of the second row is reversed in the height relationship in each molding part, and the base material passes through each molding part to form a corrugated shape. The method for producing a corrugated material according to claim 3, wherein the corrugated material is molded.   The molding parts are arranged so that the gap between the molding parts adjacent to each other is smaller than the thickness of the base material when viewed from a direction orthogonal to the arrangement direction of the molding parts arranged in the same height row. And the manufacturing method of the corrugated material according to claim 4, wherein the base material is formed into a corrugated shape by passing through each forming part.   The said base material is heated by a heating means by the time it reaches the said shaping | molding part, and is cooled by the cooling means before passing the said shaping | molding part, The Claim 1 characterized by the above-mentioned. Corrugated material manufacturing method.   When the base material moves in the longitudinal direction of the rod-shaped body and passes between the rod-shaped bodies, the substrate receives tension in a direction perpendicular to the moving direction, and is tensioned while passing through the molding portion. It is in a state, The manufacturing method of the corrugated material as described in any one of Claim 3 thru | or 6 characterized by the above-mentioned.   The said base material is a nonwoven fabric sheet made from a thermoplastic resin fiber, The manufacturing method of the corrugated material as described in any one of Claim 1 thru | or 7 characterized by the above-mentioned.   In the corrugated material manufacturing apparatus for forming a sheet-like base material into a corrugated shape, a plurality of rod-shaped bodies whose front portions are tapered guide portions are spaced apart from each other, and at the base of the rod-shaped body An apparatus for producing a corrugated material, wherein a molding part for imparting a corrugated shape to the base material is provided.   The corrugate according to claim 9, further comprising a heating means for heating the base material entering the molding portion and a cooling means for cooling the base material reaching the molding portion. Material manufacturing equipment.

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