JPH0824968B2 - Method and apparatus for manufacturing reinforced corrugated sheet - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION << Industrial Application Field >> A reinforced corrugated sheet is obtained in which each top and bottom of a corrugated ridge is formed in a meandering shape in the width direction of the seat surface, and the obtained corrugated sheet is manufactured with high yield and at high speed. In addition, Japanese Patent Application No. 60-201839, entitled “Bent or Composite Corrugated Body and Manufacturing Method Thereof”, and Japanese Patent Application No. 60-293214, “Reinforced Composite Corrugated Body and Manufacturing Method Therefor”, Japanese Patent Application Sho 61
-027512 "Reinforced composite corrugated body and its manufacturing method", Japanese Patent Application No. 61-051686 "Reinforced composite corrugated body and its manufacturing method", Japanese Patent Application No. 61-128233 "Reinforced composite corrugated body and its manufacturing method" The present invention relates to a method for manufacturing a reinforced corrugated sheet according to "Method".

<< Prior Art >> The corrugated sheet 02 of FIGS. 15 (a) and 15 (b) formed in advance is directly supplied to the corrugating roller 10 shown in FIG. 2 in that state. Regarding the conventional manufacturing method for obtaining the reinforced corrugated sheet 01 shown in FIG. 1, as shown in FIG. 3, the corrugated sheet 02 is supplied to the roller 10 to become the reinforced corrugated sheet 01 'in the corrugation forming process. , The sheet 01 'is forward-deformed in the flow direction in the meandering crest 5 and its peripheral portion in the corrugated ridge line 1 in the course of bending, while the sheet 01' flows backward in the meandering trough 4 and its peripheral portion. It is pulled back and deformed in the direction. That is, the sheet 01 'has the meandering inflection portion 6
Since the meandering crests 5 for forward feed deformation and the meandering troughs 4 for pullback deformation are alternately arranged in the width direction of the sheet 01 'through the bending process, the in-plane flow of the sheet 01' Each internal tension vector in the direction is made to have a significantly large difference in the distribution in the width direction of the sheet 01 ', and as a result, the meandering inflection portion 6 of the corrugated ridge 1 of the sheet 01' and its vicinity in the course of corrugation formation. The shear stress generated in the sheet causes the sheet to tear and break, and further, the sheet play wrinkles are likely to occur in the in-plane flow direction in the valley center axis 30 of the sheet 01 'and its peripheral portion.

More specifically, as shown in FIG. 1, the reinforced corrugated sheet 01 has a corrugated corrugated shape condition.
When the corrugated ridges are relatively deeply bent and formed so that H / L> 0.35, D / L> 0.5, and D / N> 0.2, the above-mentioned internal tension distribution heads become remarkably large. An extremely large shear stress is concentrated on the inflection portion 6 of the corrugated ridge line 1 and its peripheral portion in the course of bending formation, and as a result, stress damage is unavoidable around the above-mentioned bending portion, and particularly, a material having a low tensile strength or a thin material. It has been impossible to process the corrugated sheet 02 made of the above material or a material such as paper which is previously humidified into the reinforced corrugated sheet 01.

Due to the above-mentioned drawbacks, it has been pointed out that high-speed operation of the corrugating roller is practically difficult and high productivity cannot be obtained in manufacturing the reinforced corrugated sheet 01.

<Problems to be Solved by the Invention> The present invention has been made in view of the above problems, and an object thereof is to provide a corrugated sheet orthogonal to the flow direction in advance in the sheet in-plane flow. The corrugate is manufactured by the manufacturing method according to the present invention, which makes it possible to obtain a reinforced corrugated sheet by making the sheet width direction distribution of each tension in the sheet width direction flattened as much as possible and then supplying it to the corrugating roller. The strong corrugated sheet that is being supplied to the processing roller and is in the process of being formed is to suppress the occurrence of severe stress such as shearing and pulling in each part of the corrugated ridge array, and to prevent various tear damages in the sheet surface in advance. Is.

Therefore, the corrugated shape is H / L> 0.35, D / L> 0.5, D / N
Reinforced corrugated sheets satisfying a relatively deep bending condition of> 0.2 can be completely prevented from the above-mentioned damages in the process of processing, and relatively thin or thin sheets or humidified pulp sheets, etc. Corrugation can be achieved reliably and stably without causing any damage or damage.

As a result, high-yield products are manufactured at high speed, resulting in high productivity and significant reduction in manufacturing cost, and a method for manufacturing a reinforced corrugated sheet that can solve many of the above problems. To do.

<< Means for Solving the Problems >> According to the method for producing a reinforced corrugated sheet of the present invention for achieving the above object, the corrugated sheet orthogonal to the flow direction is preliminarily formed in the in-plane flow direction. After each tension distribution is flattened in the sheet width direction as much as possible, it is supplied to a corrugating roller to obtain a reinforced corrugated sheet.

Preferably, the corrugated sheet is in a direction orthogonal to the width direction of the corrugated sheet in the vicinity of each portion corresponding to the central axis of each corrugated meander of the reinforced corrugated sheet in the sheet surface in advance. Is applied to the corrugating roller after being applied with the external tensile force in advance.

Further, preferably, the corrugated sheet is applied with a compressive external force in the direction orthogonal to the width direction of the corrugated sheet in advance in the vicinity of each portion corresponding to the meandering crest central axis in the sheet surface. After that, it is supplied to the corrugating roller.

Further, preferably, the corrugated sheet is subjected to pullback deformation in a flow reverse direction in a linear portion corresponding to the meandering valley central axis and its peripheral strip-shaped portion, or corresponds to the meandering mountain central axis. The linear portion and the peripheral strip portion are subjected to forward feed deformation in the flow direction, or both of the pullback and forward feed deformations are made at the same time and then supplied to the corrugating roller.

Further, preferably, the corrugated sheet is a roller or a stationary member which is arranged in advance in close contact with the meandering peak or trough central axis or a portion corresponding to both central axes in the plane of the sheet and its vicinity. Thus, the external force is applied and supplied to the corrugating roller.

Incidentally, the corrugated sheet according to the present invention is a generic term for a sheet characterized in that it is formed by forming a plurality of wavy bent ridges that are orthogonal in principle in the flow direction in the width direction in multiple stages, and The cross-sectional shape in the width direction of the wavy bent ridges is a continuous curved waveform, a discontinuous curved waveform, a zigzag linear waveform, other curved linear waveforms, a combined waveform of various curved lines and various curved straight lines, horizontal in the seat surface There are ones such as intermittent combination waveforms of straight lines and each of the above-mentioned waveforms, and those in which the waveform period of the liquid bent line is formed as an integer ratio with the meandering period in the width direction of the corrugated line in the reinforced corrugated sheet. , And those formed as a non-integer ratio, and further, there are those in which the above-mentioned period of the wavy bent line is formed uniformly in the width direction and those in which they are formed unevenly. Effective for manufacturing method, And the various various corrugated folding jaws columns have those unions properly, also useful in method of manufacturing a variation of the above bending jaws columns readily conceived by any present invention.

The corrugated sheet formed as described above is supplied to the corrugating roller and finally the reinforced corrugated sheet is bent and formed. It is effective in reliably and stably promoting the forward feed deformation near the peak and the pullback deformation near the valley. That is, it has a role of preventing and preventing shear damage that tends to occur near the meandering curved portion of the corrugated ridge and tensile damage that tends to occur at the meandering top and bottom portions.

The flattening of each tension distribution of the present invention means that when the corrugated sheet is supplied and a reinforced corrugated sheet is formed by a corrugating roller,
On the inner surface of the reinforced corrugated sheet in the corrugation forming process and the corrugated sheet before formation, each meandering shape of corrugated ridges, each central axis of each trough, each part corresponding to each central axis and its vicinity It was inevitable in the conventional manufacturing method that each internal tension vector generated in the above has a large difference between the maximum value and the minimum value and has a non-uniform distribution with a severe wavy drop in the sheet width direction. By the manufacturing method of the above, the non-uniform distribution of the above tensions reduces the deviation between the respective tensions, and it is possible to achieve a quasi-uniform distribution with a gentle wavy drop in the sheet width direction or a uniform distribution with no wavy drop at all. Is a general term for the principle of action and its method for approaching.

First, in order to increase each tension in the vicinity of each portion corresponding to each of the valley central axes, the corrugated sheet is formed in the plane in the vicinity of each portion corresponding to each of the meandering valley central axes. There is a method characterized in that a tensile external force can be applied in a direction orthogonal to the seat width direction, and then, in order to reduce the tension in the vicinity of each portion corresponding to the mountain center axis, the corrugated plate shape is used. A sheet is made to exert a compressive external force in the plane in the vicinity of each portion corresponding to each of the meandering crest central axes in a direction orthogonal to the sheet width direction, or each linear portion corresponding to the meandering crest central axis. There is a method characterized in that the external tensile force in the flow opposite direction can be removed in the peripheral strip-shaped region, and the tension is increased in the vicinity of the region corresponding to the valley central axis and the mountain central axis. In order to reduce, there is a method characterized in that the corrugated sheet is made to act on the predetermined each part of the tensile external force and the compression external force at the same time, and the tensile external force is applied to each of the predetermined parts. There is a method characterized in that the tensile external force in each of the above-mentioned predetermined portions is removed at the same time as it is made to act, and any of them is effective for the present invention.

Separately from this, in order to increase the tension near each meandering valley of the reinforced corrugated sheet in the corrugation forming process, the corrugated sheet and the reinforced corrugated sheet in the forming process are In each linear part corresponding to each valley center axis and each peripheral band part,
There is a method characterized in that pullback deformation in the reverse direction of the in-plane flow can be made, and then in order to reduce the tension in the vicinity of the meandering peaks of the reinforced corrugated sheet in the corrugation forming process, The corrugated sheet and the reinforced corrugated sheet in the process of forming, at each linear portion corresponding to the mountain center axis and each peripheral strip portion thereof, are allowed to undergo forward feed deformation in the flow direction in the plane thereof. In order to increase the tension in the vicinity of the valley of the reinforced corrugated sheet in the corrugation forming process and at the same time decrease the tension in the vicinity of the crest, there is a corrugated sheet and The reinforced corrugated sheet in the forming process is formed in the linear portions corresponding to the central axes of the valleys and the central axes of the peaks and the peripheral strip-shaped portions thereof. There is a method characterized in that each in-plane flow reverse direction, each pull-back deformation in the flow direction, and the forward feed deformation can be caused, and all are effective for the manufacturing method of the present invention, and further, an appropriate combination of the above-mentioned respective methods. Is also effective in the present invention. In addition to the above, various modifications of the above methods can be easily conceived, and all are effective for the manufacturing method of the present invention.

The forceps of the manufacturing apparatus according to the present invention means that the corrugated sheet is closely contacted only in the vicinity of the meandering peaks and troughs of the corrugated sheet on the surface of the flow of the corrugated sheet. By arranging them so that their axes are aligned with each other in the seat width direction, a tensile external force, a compressive external force, or both external forces act on the vicinity of the above-mentioned portion in the direction orthogonal to the seat width direction. It is a general term for manufacturing equipment that can be squeezed. There are roughly two types of force-applying elements, a rotating body-like one and a stationary body-like one.

As the rotator, the cross-sectional contour in the axial direction of the peripheral surface corresponding to the vicinity of the contact portion with the corrugated sheet is a smooth curved shape, a discontinuous curved shape, a bent linear shape, or a composite shape of the various curved lines and various straight lines. And the like, and a corrugated roller having an intermittent constriction with a waveform having a predetermined cycle and amplitude, and a corrugated roller having a large number of discs connected at predetermined intervals. Further, each of the corrugated rollers is classified into one in which the tangent of each apex in the circumferential surface axial direction is parallel to the central axis and one in which the corrugated rollers are formed in a curved shape. There are a single type in which the sheet is placed in close contact with only one side of the plate sheet, and a pair type in which the sheet is placed in close contact with both sides of the sheet, and further, the pair of corrugated rollers are There are those in which the large diameter portion or the small diameter portion is provided in the same phase in the axial direction with respect to each other, and in the one in which the above single wave roller is provided as a pair with a cylindrical roller having no wave. Both are effective for the present invention. In addition to these, there are the above-mentioned corrugated rollers whose rotation is not braked at all and whose rotation is braked. Further, there are one provided so that the rotating shaft can be translated in the out-of-plane direction or the in-plane direction of the corrugated sheet, and one in which the rotating shaft is completely fixed. Furthermore, the corrugated roller provided so that the corrugated sheet to be supplied is made to flow orthogonally in the flow direction at the contact portion with the corrugated roller, and the corrugated sheet to be supplied is bent in the flow direction. There is the above-mentioned corrugated roller provided so as to flow down, and any of them is effective for the manufacturing method of the present invention.

As the stationary body, a cross-sectional contour in the side surface axial direction corresponding to the vicinity of the contact portion with the corrugated sheet, a smooth curved shape, a discontinuous curved shape, a bending curved shape, or each of the above curved lines and each bent line. There are plate-shaped stationary bodies, rod-shaped stationary bodies, etc. that have a corrugated shape such as a composite shape. Also, the corrugated stationary body is formed so that the tangent line of each convex portion in the axial direction of the corrugated stationary body is parallel to the axial direction. Each of these corrugated stationary bodies is a stand-alone type in which the corrugated sheet is arranged in close contact with only one side of the corrugated sheet, and a body type in which the corrugated stationary bodies are arranged in close contact with both sides of the corrugated sheet through the sheet. There is. Still further, the paired corrugated stationary body is provided with the convex portions or the concave portions thereof having the same phase in the axial direction with respect to each other, the one provided with a phase shift from each other by a half period, and the single waveform stationary body. Some of them are provided as a pair with the orthogonal stationary body having no corrugation, both of which are effective for the present invention. Besides this,
There are a corrugated sheet whose axis can be moved parallel to the out-of-plane direction and a shaft whose axis is completely fixed. Both are effective for the manufacturing method of the present invention. Furthermore, there are many pressers of the present invention that can be obtained by appropriately combining the corrugated rollers and the corrugated stationary bodies, and there are a large number of deformations of the rollers and the stationary bodies that can be easily conceived. It is effective for the invention.

<< Example >> The preferred example of the present invention will be described with reference to the accompanying drawings.

FIG. 1 shows a first embodiment, and is a perspective view of a reinforced corrugated sheet 01 obtained by being bent by the manufacturing method according to the present invention.
In the top portion 2 and the bottom portion 3 of the corrugated ridge, a bent portion which is meandering in a continuous curved line is formed horizontally in the axial direction, and more preferably, the ratio of the amplitude H to the waveform period L of the orthogonal cross section of the corrugated ridge row 1 is Amplitude ratio H / L.0.35, ratio of the meandering amplitude D of the corrugated ridge 1 to the period L, that is, meandering overlapping ratio D / L> 0.5, ratio of the meandering amplitude D to the period N, that is, meandering ratio D / It is to be formed so as to satisfy all the shape conditions such that N> 0.2, or to satisfy any two of the above conditions, or to satisfy any one of the above conditions.

Although not shown in the figure, a reinforced corrugated sheet in which the meandering shape of the corrugated ridge is a bent linear shape such as a discontinuous curved shape or a zigzag linear shape or a composite linear shape of each of the curved lines and each of the linear shapes is also included in the present invention. Bending can be performed by the drawing method.

The material of the corrugated sheet is paper, a composite sheet using paper as a base material, a synthetic resin sheet, a metal sheet,
Ceramic sheet Carbon sheet, Woven cloth, Non-woven cloth,
In addition, it is effective to apply all material sheets that can be bent and deformed cold or hot, such as a composite sheet of each of the above materials.

FIG. 2 shows a second embodiment of the present invention, showing a corrugating roller 10 used in the manufacturing method of the present invention. 1A is a cutaway perspective view of the roller 10, FIG. 1B is a partially developed side view of the roller 10, and FIG. 1C is a sectional view taken along line SS of the roller 10.

The pair of corrugating rollers 10 is characterized in that the corrugated groove array 7 has a meandering shape of a continuous curved line in the roller peripheral surface and the roller axial direction, and is provided in multiple stages in the same peripheral direction, and is also desirable. Shows that the meandering shape of the top 8 and bottom 9 of the corrugated groove array 7 has an amplitude rate H / L> 0.35, a meandering overlap rate.
All three shape conditions with D / L> 0.5 and meandering ratio D / N> 0.2 are satisfied, or any two of the above shape conditions are satisfied, or any one of the above shape conditions is satisfied. It will be done. Although not shown, the meandering linear portion of the corrugated groove array 7 is formed as a discontinuous curved line, a bent linear line such as a zigzag linear line, or a combined linear line of the above curves and the above straight lines. The corrugating roller is also effective for the manufacturing method and manufacturing apparatus of the present invention.

In FIG. 3 which is a conventional example, a corrugated sheet 02 which is not flattened in the sheet width direction distribution of each internal tension in the sheet flow direction is supplied to the corrugating roller 10 and formed. All the steps of the conventional manufacturing method for obtaining the reinforced corrugated sheet finally formed through the reinforced corrugated sheet 01 'in the process are schematically shown. (A), (b), (c), and (d) are plan views, S ₁ -S ₁ sectional views, S ₂ -S ₂ sectional views, and S ₃ -S sectional views of each of the above-mentioned steps. FIG. _{3 is a} sectional view. The corrugating roller is omitted in the plan view and is shown by a dotted line in the cross-sectional view in the flow direction.

The corrugated sheet is supplied to the corrugating roller 10 without causing any local external force to act in the direction orthogonal to the sheet in-plane width direction, or without causing any local movement deformation in the same direction. The reinforced corrugated sheet 01 'obtained in the forming process is forward-deformed in the corrugated ridge 1 by the meandering crests 5 in the flow direction of the sheet 01', while the meandering troughs 4 are reversed from the same flow. While being pulled back and deformed in the direction, the formation of the bent corrugated ridges is advanced, and at the end, the reinforced corrugated sheet 01 is completed.

More specifically, the linear mark line L ₁ provided in the width direction of the corrugated sheet 02 is transformed into the meandering curve mark line L _{2 in} the strengthening corrugated sheet 01 ′ in the forming process. As can be seen from the above, at the time of forming the folds of the corrugated ridge, the peaks 5 and the valleys 4 are forced to undergo relatively deep movement deformation in mutually opposite directions through the inflection parts 6, and as a result, In each corrugated ridge row 1 in the process of forming, a sudden shear stress is generated in the inflection portion 6 and its peripheral portion, and eventually the sheet surface 01 'is torn and broken.

Also in the corrugated sheet 02 immediately before being supplied to the corrugating roller 10, the trough center axis 30 of the meandering trough 4, the crest center axis 31 of the crest 5, and the inflection 6 are the same. The internal tension vectors T ₄ , T ₅ , and T ₆ are generated at the respective parts corresponding to the vertical axis 32, which results in a non-uniform tension distribution having a sharp wavy drop in the width direction of the sheet 02. .

The reinforced corrugated sheet 01 'in the forming process was invented so as not to cause the shear failure, ie, the tear failure in its plane, as shown in FIGS. 4 and 5, respectively. This is an example, and the corrugated sheet 02 ', in which the distribution in the sheet width direction of each internal tension in the sheet flow direction is flattened as much as possible, is supplied to the corrugating roller 10 and strengthened in the forming process. All the steps of the manufacturing method according to the present invention for obtaining the reinforced corrugated sheet 01 which has been completed through the corrugated sheet 01 'are schematically shown. 4 (a), (b), (c), and (d) are plan views, S ₁ -S ₁ sectional views, S ₂ -S ₂ sectional views, and
FIG. 5 is a sectional view taken along the line S ₃ -S _{3 of} FIGS. 5 (a), (b), (c),
(D) is a plan view of each of the above steps, a sectional view taken along line S ₁ -S _{1 of} FIG.
S ₂ -S ₂ cross-sectional view, a similar S ₃ -S ₃ cross-sectional view. The corrugating roller 10 is omitted in the plan view and is shown by a dotted line in the cross-sectional view in the flow direction.

Although not shown, the corrugated sheet 02 of the conventional example shown in FIG. 3 can be attached to the corrugating roller 10 in the vicinity of a portion on the sheet 02 corresponding to each of the meandering valley central axes 30. By exerting a tensile external force in the direction opposite to the flow of the sheet at the shortest possible distance, the corrugated sheet 02 'and the reinforced corrugated sheet 01' in the forming process shown in FIG. Internal tension vector in the flow direction near the portion corresponding to the central axis 30 of the valley in
Since T ₄ ′ can be made larger than the internal tension vector T _{4 in} the flow direction of the corrugated sheet 02 which cannot exert the tensile force shown in FIG. 3 and the reinforced corrugated sheet 01 ′ in the forming process, As shown in FIG. 4, it is characterized in that the widthwise distribution of the internal tension in the flow direction in the sheet surface can be more flattened. As a result, in the reinforced corrugated sheet 01 ', when the troughs 4 and the peaks 5 of the corrugated ridge array 1 in the process of forming are relatively deeply deformed in opposite directions via the inflection part 6, Since the shear stress can be reduced, the shear fracture near the inflection portion 6, that is, the tear damage of the sheet 01 'can be suppressed and prevented, and at the same time, the play wrinkles in the flow direction near the valley portion 4 of the corrugated ridge array 1 can be suppressed. The effect of suppressing and preventing the occurrence of Further, as described above, the internal tension is flattened as much as possible, and the corrugated plate is supplied in a state in which the above meander shape cannot be locally deformed and moved in the sheet surface and width direction. On the reinforced corrugated sheet 01, it is clear from the fact that the straight marking line L ₁ on the sheet 02 ′ smoothly and quickly transforms into the meandering curved marking line L ₂ on the final reinforced corrugated sheet 01. This enabled reliable and stable folding of the corrugated ridge line 1.

The corrugated sheet 02 shown in FIGS. 5 (a) and 5 (b) is
Although not shown in the drawing, the sheet is formed at a position as close as possible to the corrugating roller 10 with respect to the vicinity of each portion on the sheet 02 corresponding to each of the meandering valley central axes 30.
A relatively large external tensile force in the direction opposite to the flow of 02 can be applied, and at the same time, the corrugating roller 10 can be applied to the vicinity of each portion on the sheet 02 corresponding to each of the meandering mountain central axes 31. By applying a relatively large compressive external force in the flow direction of the sheet 02 at a very close distance, a corrugated sheet 02 ″ having a flat inner tension distribution shown in FIG. 5 is obtained, The sheet 02 ″ has a flow direction internal tension vector T ₄ ″ in the vicinity of the upper portion thereof greatly increased at the sheet 02 ″ corresponding to the central axis 30 of the valley, compared with the flow direction internal tension vector T ₄ of FIG. At the same time, the internal tension vector T ₅ ″ in the flow direction near each part on the sheet 02 ″ corresponding to the mountain center axis 31 can be significantly reduced from the internal tension vector T ₅ ″ in the flow direction in FIG. . Again, the central axis of the valley 30 In the linear part on the sheet 02 ″ and the peripheral band part on the sheet 02 ″, a relatively small pullback deformation in the flow reverse direction is brought about, and at the same time, the linear part on the sheet 02 ″ corresponding to the mountain central axis 31 is formed. The corrugated sheet 02 ″ is formed in the region and its peripheral band-shaped region by causing the forward feed deformation to be relatively small in the flow direction.
After being formed by flattening the widthwise distribution of the internal tension in the flow direction, it is supplied to the corrugating roller 10. As a result, reinforced corrugated sheet in the process of forming
At 01 ', the valley portion 4 of the corrugated ridge line 1 under formation
When the mountain portion 5 and the mountain portion 5 are relatively deeply deformed and moved in opposite directions through the inflection portion 6, the shear stress thereof can be reduced, so that the shear fracture near the inflection portion 6, that is, the tear damage is suppressed. , And at the same time, it is possible to suppress and prevent the occurrence of play wrinkles in the flow direction in the vicinity of the valley portion 4 of the corrugated ridge line 1. Also, corrugated sheet
Since the internal tension of 02 is flattened, the corrugated sheet 02 is supplied after being subjected to the forward feed deformation and the pullback deformation in the in-plane flow direction and the reverse flow direction of the sheet 02. Further, a reinforced corrugated sheet 01 is obtained by being bent by the corrugating roller 10, and in all the steps,
Smoothly from the linear marking line L ₁ on the sheet 02 to the meandering curve marking line L ₁ ′ having a relatively shallow amplitude on the sheet 02 ″ and further to the meandering curve marking line L ₂ having a relatively deep amplitude on the sheet 01. As is clear from the fact that the corrugated ridges 1 are bent quickly, it is possible to surely and quickly form the bends in the corrugated ridge array 1, which is effective in the present invention.

The fifth to twelfth embodiments shown in FIGS. 6 to 13 are various devices each including a corrugating roller and various forceps arranged as close to the upstream position as possible, Various main manufacturing apparatuses according to the present invention are characterized in that a corrugated sheet is bent by an apparatus to obtain a reinforced corrugated sheet. Each drawing (a) of the fifth to twelfth embodiments is a perspective view of the main manufacturing process, and each drawing (b) is a plan view of the main manufacturing process. Each of the figures (c), (d),
(E) is a cross-sectional view of the width direction portion, and each of (f) is a cross-sectional view in the flow direction. In each of the embodiments shown in FIGS. 6 to 13, the corrugating roller 10 is not shown as a pair of cylindrical rollers, but its shape is almost the same as that of the corrugating roller of the second embodiment. It is a thing.

A fifth embodiment shown in FIG. 6 is a corrugated roller 20 for a body disposed at a predetermined position upstream of the corrugating roller 10.
By the action of, the corrugated sheet 02 is supplied to obtain the reinforced corrugated sheet 01. More specifically, the corrugated sheet 02 is supplied to the corrugated roller 20 and is applied to the portion of the sheet 02 corresponding to the meandering valley center axis 30 of the reinforced corrugated sheet 01 and its vicinity, and the pair of corrugated rollers is provided. Due to the braking effect of 20, a tensile external force is applied in the flow direction of the seat 02, and as a result, the above-mentioned seat 02 is applied.
Corrugated sheet 0 with a gentle corrugation in the cross section in the width direction and a more even distribution of internal tension distribution in the flow direction
2 ″ is supplied to the corrugating roller 10 to strengthen the corrugated sheet in the corrugating process.
01 'can be prevented from tearing damage at the time of forming the fold, and at the same time, play wrinkles in the flow direction at the time of forming the fold can be prevented, and the final reinforced corrugated sheet can be bent surely and at high speed. To be

The pair of corrugated rollers 20 arranged in a pair are preferably in the form of a biaxial disc coupling body arranged and fixed at a constant interval, and each pair of discs in the circumferential direction. It is a force applying device characterized in that the peripheral surfaces of (1) and (2) are brought into close contact with the corrugated sheet (02) without being displaced from each other, the shaft is fixed, and the rotation of the shaft is braked.
Although not shown in the drawing, there is a force applying member according to the present invention in which a single corrugated roller 20 'in the form of a disc coupling body and a single cylindrical roller 18 are arranged as a pair, which is equivalent to the fifth embodiment. The effect of is obtained.

The sixth embodiment shown in the seventh embodiment is a corrugating roller 10 and a corrugating roller for body disposed at a predetermined position upstream thereof.
By the function of 21, the corrugated sheet 02 is supplied to obtain the reinforced corrugated sheet 01. More specifically, the corrugated sheet 02 is supplied to the corrugated roller 21, and the parts on both sides of the corrugated sheet 02 corresponding to the meandering valley central axis 30 of the reinforced corrugated sheet 01 and the vicinity thereof are described above. After the corrugated roller 21 is once brought into close contact with the corrugated roller 21, the rotation of the corrugated roller 21 is performed in parallel on both sides of the sheet 02 in the reverse direction without slipping up, and then the rotation stop is released so that the corrugated sheet is supplied. Since a tensile external force in the flow reverse direction is applied to the vicinity of the above-mentioned portion on the corrugated sheet 02, the corrugated shape of the cross section in the width direction of the corrugated sheet 02 can be remarkably loosened and the internal tension in the width direction of the corrugated sheet 02 can be reduced. By supplying the corrugated sheet 02 ′ having a more flat distribution to the corrugating roller 10, the reinforced corrugated sheet 01 ′ in the corrugation forming process is pulled at the time of forming the fold. At the same time Manugareru from tearing damage, brought prevent the flow direction of the play wrinkles, and the final reinforced corrugated sheet 01 is obtained by forced formed bent reliably and fast.

Further, the corrugated rollers 21 arranged in a pair are in the form of a concatenated disc of two axes arranged and fixed at a predetermined interval, and the pair of discs are arranged in the circumferential direction. The peripheral surfaces of the corrugated sheet are alternately provided in the same phase without being displaced in the axial direction, and firmly adhered to each other via the corrugated sheet 02, and then the paired corrugated roller 21 shown by a dotted line in the figure While the shaft rotation is stopped, after the surface of the sheet 02 is not slid to the predetermined position of the roller 21 indicated by the solid line in the figure, the in-plane flow is axially translated in the opposite direction, and then the shaft rotation is released. It is an adder characterized by starting its predetermined function when it is pressed. Further, it is desirable that various protrusions, depressions or various grooves be provided on the disc peripheral surface portion 60, or that the disc peripheral surface portion 60 be provided.
Is formed by various elastic materials or composites, mixtures, and compound materials of these various elastic materials and other materials. Although not shown in the drawing, a pair of the single disc-shaped corrugated roller and the single cylindrical roller is provided in the sixth embodiment.
The same effect as that of the embodiment is obtained, and the present invention is effective.

A seventh embodiment shown in FIG. 8 is a corrugating roller 10 and a pair of rollers which are arranged upstream of the corrugating roller 10.
The corrugated sheet 02 is supplied by the action of 21 'and 18 to obtain the reinforced corrugated sheet 01. More specifically, the corrugated sheet 02 is the roller 21 ', 1
8 is supplied to the reinforced corrugated sheet 01, and the pair of rollers 21 'and 18 are once brought into close contact with the parts on both sides of the corrugated sheet 02 corresponding to the meandering crest central axis 31 of the reinforced corrugated sheet 01 and their vicinity, In the rotation stopped state, the sheet is parallel-moved in the flow direction without slipping on the surface of the sheet 02, and then the rotation stop is released, so that the flow direction near the portion on the corrugated sheet 02 to be supplied is increased. Since the external compressive force is applied to the corrugated sheet 02, the corrugation of the cross section in the width direction of the corrugated sheet 02 is remarkably gentle, and the widthwise distribution of the internal tension in the flow direction is flattened. Sheet 02 ″
Is supplied to the corrugating roller 10 to strengthen the corrugated sheet during the corrugation process.
01 'can be prevented from tearing and breaking at the time of forming the fold, and at the same time, the occurrence of play wrinkles in the flow direction can be prevented, and the final reinforced corrugated sheet 01 can be surely formed at a high speed. To be

Further, the pair of paired rollers 21 'and 18 are a single corrugated roller 21' and a single cylindrical roller which are in the form of a single-axis disc coupling body.
18 and 18 are paired and firmly adhered to each other via the corrugated sheet 02, and then the paired rollers 21 ', 18 at the positions indicated by the dotted lines in the figure once stop their axial rotation, While being fixed, the paired roller 21 'shown by the solid line in the figure
After being moved axially parallel to the in-plane flow direction of the sheet 02 without sliding on the surface of the sheet 02,
The force applying device is characterized in that its original function is started by releasing the shaft rotation stop. Desirably, various protrusions, depressions, or grooves are provided on the disc peripheral surface portion 60, or the disc peripheral surface portion 60 is formed of various elastic materials or a mixture, a mixture of these elastic materials and other materials,
It is to be formed by a compound material. Although not shown, a pair of corrugated rollers 21 in the form of a biaxial disk coupling body is provided in place of the pair of paired rollers 21 'and 18 to achieve the same effect as that of the seventh embodiment. Obtained and effective for the present invention.

In the eighth embodiment shown in FIG. 9, the corrugated sheet 10 is supplied by the functions of the corrugating roller 10 and the corrugating roller 20 and the corrugating roller 21 which are arranged at a predetermined position upstream thereof. 02 is bent and reinforced corrugated sheet
The feature is that 01 is obtained. More specifically, the corrugated sheet 02 is supplied to the pair of rollers 20, and the rollers 20 are temporarily stopped to rotate on the corrugated sheet 02 corresponding to the meandering valley central axes 30 of the reinforced corrugated sheet 01. At the same time, the respective disc peripheral surface portions 60 are brought into close contact with the respective parts and their vicinity without sliding up, and at the same time, the roller 21 shown by the dotted line is temporarily stopped at a predetermined position downstream thereof to form the meandering shape. After each disk peripheral surface portion 60 is firmly adhered to each portion and its vicinity on the corrugated sheet 02 corresponding to each mountain center axis 31, the sheet is held while the roller 21 is stopped rotating. 02 by sliding in the axial direction to a predetermined position shown by a solid line without sliding up, the flow in the reverse direction near each portion on the corrugated sheet 02 corresponding to each of the meandering valley central axes 30 External tensile force is applied, that is, the above-mentioned parts At the same time be deformed pullback in the opposite flow direction near, corrugated sheet corresponding to the respective mountain center axis 31
02 A compressive external force in the flow direction is applied to the vicinity of each part on the above, that is, the vicinity of the above part is forward-deformed in the flow direction so that each internal tension in the flow direction is flattened in the width direction as much as possible. The corrugated sheet 02 ″ thus obtained is obtained, but further, the above-mentioned rollers 20 and 21 are both released from the axial rotation stop, and are rotated on the sheet 02 ′ at the same speed without slipping up. , Corrugated sheet 02 ″ is the same sheet 02
The cross-sectional shape in the width direction is made to have a remarkably gentle waveform, that is, the internal stress is flattened as much as possible, and as a result, the corrugating roller 10 is strengthened in the bending process. At the inflection portion 6 of the corrugated ridge row 1 of the corrugated sheet 01 'and its surroundings, shear stress is reduced and tear damage is prevented, so that each corrugated ridge row 1 can be bent surely and quickly. The final reinforced corrugated sheet 01 is obtained and is effective in the present invention.

Incidentally, the roller 20 is a shaft-fixing type isotope corrugated roller, and a pair of rollers in the form of a disc connected body arranged and fixed at a fixed interval is provided, and the upper and lower discs are arranged in the arrangement period. There is no deviation, that is, they are arranged in the same phase, and both rollers are fixed in principle with their rotating shafts in principle, and the roller 21 is an axial translation type isotope relative position. It is a corrugated roller, and its shape and arrangement position are substantially the same as those of the roller 20, but the rotary shaft can be moved in parallel.

Further, it is effective in the manufacturing method of the present invention even if the disc coupling roller is replaced with an intermittently constricted roller having a cross-sectional shape of the circumferential surface in the axial direction of a waveform of a predetermined cycle, and further, the roller 2
Nos. 0 and 21 are also effective in the present invention even if the paired one roller is replaced with a cylindrical roller.

In the ninth embodiment shown in FIG. 10, the corrugated sheet 10 supplied is bent by the function of the corrugating roller 10 and the single corrugating roller 20 'disposed at a predetermined position upstream thereof. It is characterized in that a reinforced corrugated sheet is obtained, and more specifically, the corrugated sheet 02 is curved in a predetermined curvature along the circumferential direction of the peripheral surface of the one roller to form a meandering shape of the reinforced corrugated sheet 01. Valley center axis 30
When the disc peripheral surface portion 60 of the one roller 20 is brought into close contact with the respective portions on the corrugated sheet 02 corresponding to the above and the vicinity thereof, a tensile external force in the flow reverse direction is exerted near the above portions. At the same time, at the linear portions on the corrugated sheet 02 corresponding to the meandering crest center axes 31 and the strip-shaped portions around the corrugated sheet 02, starting from the vicinity of the disc connecting portions 61 of the roller 20 ', a predetermined distance is set in the flow direction. The play length of the corrugated sheet is refined, and therefore, the corrugated sheet section 02 has a significantly smoother cross-sectional corrugation in the width direction, and the widthwise distribution of internal tension in the flow direction is flattened. The sheet 02 ″ is supplied by the roller 20 ′, and as a result, in the corrugating roller 10, shear stress in and around the inflection portion 6 of the corrugated ridge 1 of the reinforced corrugated sheet 01 ′ that is in the process of bending is reduced. Killing Because it is crimped by preventing tearing damage, each corrugated jaw column 1 is made to form folded reliably and fast, the final reinforced corrugated sheet
01 was obtained and is effective in the present invention.

Incidentally, the roller 20 'is a single shaft-fixing type corrugating roller, and is a single-axis corrugating roller which is arranged and fixed at a predetermined interval to form a concentric disk coupling body. Is fixed without any parallel movement of the above, and in addition to this, it is effective in the present invention to replace the disc-shaped corrugated roller with an intermittent constricted corrugated roller. Further, although not shown, the corrugated sheet 02 supplied to the corrugating roller 10 through a plurality of curved portions or bent portions is provided with a plurality of corrugated portions or bent portions. It is characterized in that a corrugated sheet 02 'is provided which is supplied by being adhered to the vicinity of each portion on the sheet 02 corresponding to each of the valley center axes 30 by the single unit corrugated roller 20' and the internal tension is flattened. The manufacturing method is effective for the present invention.

In the tenth embodiment shown in FIG. 11, the corrugated roller 02 and the corrugated roller 22 provided at a predetermined position upstream of the corrugated roller cause the corrugated sheet 02 supplied to be bent. The reinforced corrugated sheet 01 is obtained by being pressed, and more specifically, the corrugated sheet 02
Is supplied to the roller 22 and one of the paired rollers is
One of the rollers 22 is formed in the corrugated sheet 02 corresponding to each of the meandering valley central axes 30 of the reinforced corrugated sheet 01 by being curved to a predetermined curvature in the circumferential direction of the circumferential surface of the corrugated sheet 02. At the same time as the respective disc peripheral surface portions 60 are closely contacted with each other, the respective disc peripheral surface portions of the one roller 22 in the respective portions on the corrugated sheet 02 corresponding to the meandering mountain central axes 31 and in the vicinity thereof. By closely contacting each other, a tensile external force in the direction opposite to the flow is applied to the vicinity of each part corresponding to each central axis 30 of the valley of the corrugated sheet 02, and at the same time, each part corresponding to each central axis 31 of the respective peaks. A play length in the flow direction is generated in the vicinity, so that the cross-sectional corrugation in the width direction is made to be significantly gentler than that of the corrugated sheet, that is, the widthwise distribution of each internal tension in the flow direction is flattened. The corrugated sheet 02 ″ is supplied. As a result, the reinforced corrugated sheet 01 'in the process of forming the folds in the corrugating roller 10 reduces the shear stress in the inflection portion 6 of the corrugated row 1 and its surroundings and prevents tear damage, so that each corrugation is prevented. The row 1 is bent securely and at high speed, and the final reinforced corrugated sheet 01
It is possible to provide a manufacturing apparatus according to the present invention, which is effective for obtaining the above.

The ninth embodiment is a modification of the eighth embodiment, that is, by replacing the single corrugated roller 20 ′ with the paired corrugated roller 22, the vicinity of each portion on the corrugated sheet 02 corresponding to each mountain center axis. In, the play length in the flow direction can be more stably generated and increased,
The feature of the present invention is that the folding of the corrugated ridge line 1 is achieved more reliably and at high speed.

The paired roller 22 is a shaft-fixed and parallel-movement type shift phase paired corrugated roller, which is formed into a disc coupling body.
Each disc of the shaft has a displacement phase having an array displacement of a half cycle between the upper and lower sides, and it is desirable that one roller of the pair of rollers 22 is movable in the axial direction. Although not shown, a corrugated roller in the form of a disc coupling body may be replaced with a corrugated roller having an intermittent constriction, which is also effective in the present invention.

In the eleventh embodiment shown in FIG. 12, the corrugated roller 10 and the bar-shaped corrugated stationary body 24 arranged at a predetermined position upstream thereof function to bend the supplied corrugated sheet 02. Characterized in that a reinforced corrugated sheet 01 is obtained, and more specifically, the corrugated sheet 02 is supplied to the rod-shaped corrugated stationary member 24, curved along a side surface of the stationary member 24 at a predetermined angle or The stationary body 24 or each convex portion 60 is closely attached to each portion and its vicinity on the corrugated sheet 02 corresponding to each meandering valley central axis 30 of the reinforced corrugated sheet 01 by being bent. Due to
Corrugated sheet corresponding to each meandering crest central axis 31 at the same time as tensile external force in the flow reverse direction is applied near each portion corresponding to each trough central axis 30 of the above corrugated sheet 02.
Each linear portion of 02 and its peripheral strip-shaped portion is made to generate a predetermined play length in the flow direction with the vicinity of each concave portion 61 of the stationary body 24 as a starting point, and further in the width direction thereof than the corrugated sheet 02. A corrugated sheet 02 ″ having a smooth cross-sectional waveform, that is, a flat distribution of the internal tension in the flow direction in the width direction is supplied, and as a result, the corrugating roller 10 is bent. Since the shear stress in the inflection portion 6 of the corrugated ridges 1 of the reinforced corrugated sheet 01 ′ in the forming process and its peripheral portion is reduced to prevent tear damage, each corrugated ridge row 1 can be bent surely and at high speed. Formed to obtain a final reinforced corrugated sheet 01, which is effective for the present invention.

The stationary body 25 is a rod-shaped single corrugated stationary material, and the axial cross section of the side surface near the contact surface with the corrugated sheet 02 is
A force applying member characterized in that it is a single rod-shaped stationary member formed as a waveform having a predetermined period and amplitude. There is a pair of rod-shaped stationary members arranged in a pair at a predetermined interval with a side corrugation in the shape of, and having its axis in the width direction of the corrugated sheet 02, and having a width orthogonal to the flow direction. There is a curved plate-shaped single-piece corrugated stationary member obtained by bending a flat plate having a wavy groove formed in multiple directions in the direction, and is curved in a direction orthogonal to the wavy groove, and has the same function as the rod-shaped single-piece corrugated stationary member in the present invention. In addition, the corrugated stationary members that are curved in the same direction to form a pair have corrugated grooves on each stationary body through the corrugated sheet 02 and have a half-cycle deviation from each other and have a predetermined interval. There is a curved plate-like body corrugated stationary material that is arranged keeping Any of these are effective as the force adder according to the present invention, and in addition to these, deformations thereof can be easily conceived, and all are effective as the force adder of the present invention.

In the twelfth embodiment shown in FIG. 13, the corrugated roller 10 and the corrugated pair roller 23 arranged at a predetermined position upstream of the corrugated roller cause the supplied flat sheet 03 to be corrugated. After that, the reinforcing corrugated sheet 01 is obtained by being bent and formed into a corrugated shape, and more specifically, the flat sheet 03 is supplied to the roller 23, and one of the rollers is fed. A corrugated sheet 03 in the process of forming a corrugated shape that is curved or bent so as to form a predetermined angle along the peripheral surface of the corrugated sheet and faces the meander-shaped valley center axes 30 and the mountain center axes 31 of the reinforced corrugated sheet 01.
The large-diameter portion of the corrugated roller 23 is brought into close contact with the vicinity of each part of the corrugated sheet, so that the flat sheet 03 is bent and formed into a corrugated sheet to obtain a corrugated sheet 02. The corrugated rollers 23 mutually make the axial tangential lines of the circumferential surfaces of the large diameter portions of both rollers substantially parallel to each other or the axial tangential lines of the circumferential surfaces of the large diameter portion of the rollers and the small diameter portions of the other rollers. The corrugated sheet 23 is curved so that both tangents thereof are curved out of the widthwise surface of the corrugated sheet 02. The corrugated sheet 02 ″ in the forming process and the corrugated sheet 02 ′ after being formed are characterized in that the inclination distribution in the width direction of the internal tension in the flow direction and the opposite direction is flattened in the width direction. At the same time, the corrugated sheet 03 'in the forming process supplied to the pair roller 23 is Is caused to bend or flex in a circumferential direction of the peripheral surface of serial roller 23, corrugated sheets 0 corresponding to each trough center axis 30 of the serpentine-shaped reinforced corrugated sheet 01
For each part of 3'and its vicinity, one roller 23 having a convex curve outward in the width direction of the sheet 03 'has a large diameter part.
By closely contacting the peripheral surface of 60, a tensile external force in the opposite flow direction is applied to the vicinity of each of the above parts, and at the same time, a corrugated sheet 03 'corresponding to each meandering mountain central axis 31 is formed.
With respect to each part and its vicinity, one roller 23 having a concave curve out of the plane in the width direction of the sheet 03 'is brought into close contact with the peripheral surface of each large diameter part 60, so that the vicinity of each part is started. As a play length in the flow direction is generated as a result, the corrugated sheet 02 ″ obtained by flattening the widthwise distribution of the internal tension in the flow direction is supplied to the corrugating roller 10, and as a result, , The shear stress in the inflection portion 6 of the corrugated ridge row 1 of the reinforced corrugated sheet 01 ′ in the forming process and its surroundings is reduced, the damage is prevented continuously, and each corrugated ridge row 1 is reliably and quickly folded. The bent corrugated sheet is finally obtained, which is effective for the present invention.

The twelfth embodiment is a modification of the tenth embodiment, that is, the corrugated roller 22 of the present invention is modified so that the force applying roller, the corrugated plate-shaped bending roller, and the internal tension gradient distribution are flat. The corrugated roller 23 of the present invention, which can also function as a carrying roller at the same time, is also characterized by being obtained as a function of the corrugated sheet roller 23 of the present invention. In addition, the related costs could be significantly reduced. Although not shown otherwise,
The paired corrugated roller 23 in which the tangent to the circumferential surface of the large-diameter portion 60 in the axial direction is parallel to the sheet 02 ″ surface functions only as a force applying roller and a corrugated plate bending roller. At the same time, it is effective for the present invention.

Incidentally, the paired corrugated roller 23 is preferably a curved shaft fixed type and a shaft parallel displacement type shift phase paired corrugated roller,
The large diameter part of both shafts, which has a constricted circumferential surface that is intermittent and gentle in the axial direction, has a misaligned phase with a half-cycle misalignment, and in principle one roller can move in parallel with the shaft. It is a forceps characterized by that.

Further, the body rod-shaped or body plate-shaped stationary member shown in the eleventh embodiment of FIG. 12 has a tangent line common to all the contact portions with the flat sheet 03 in each rod or each flat plate in the width direction of the sheet 03. Is formed as a curved line outside the plane of the above-mentioned plate, and at the same time has the function of the above forceps, at the same time as the function of bending the supplied flat sheet 03 into the corrugated sheet 02, The corrugated sheet 02, 02 ′, 02 ″, which is obtained by flattening the inclination distribution in the sheet width direction of the internal tension generated in the sheet flow direction, is also effective for the present invention.

Although not shown, the respective forceps arranged in the respective embodiments of the manufacturing apparatus according to the present invention are appropriately arranged so as to have a plurality of stages in the flow direction on the corrugated sheet 02, 02 'on the downstream side. In a manufacturing process in which a plurality of sheets are provided, a predetermined total amount of various external forces to be applied to the sheets 02 and 02 'are dispersed in the places where the plurality of multi-stage forceps are arranged, so that they are generated in the seat surface. Since the stress in the width portion is not sharply increased, as a result, various corrugated sheet 03,02,02 ′, 02 ″ can be prevented from various stress fractures and damages in and out of the surface of the corrugated sheet. It is valid.

Although not shown in the drawings, a new manufacturing process in which the respective forceps to be arranged are appropriately combined in the respective embodiments of the manufacturing process according to the present invention is also effective in the present invention. Single roller 20 'in the ninth embodiment of FIG.
In the intermediate position between the corrugating roller 10 and the corrugating roller 10, a pair of rollers 21 'and 18 in the seventh embodiment shown in FIG. 8 are arranged axially parallel to the roller 20'. The external forces exerted by the rollers 20 ', 21', 18 are dispersed more than those in the ninth and seventh embodiments, and the mountain center shaft 31 on the seats 02 ', 02 with respect to the external forces is dispersed. Therefore, each predetermined forward deformation and pullback deformation can be easily achieved in the vicinity of the portion corresponding to the valley center axis 30, so that various stress fractures and damages on the sheet 02 'can be prevented, which is effective in the present invention. is there. In addition to this, variations of the above-described embodiments can be easily conceived, and are effective for the manufacturing method according to the present invention.

In the thirteenth, fourteenth and fifteenth embodiments shown in FIG. 14, the shape of the disk peripheral surface portion 60 of the corrugated roller 20 of the forceps according to the present invention is shown. Is a perspective view of the roller 20, and (b), (b '), (c), (c'), and (d) are elevation views of the disk, and (e), (f), and (g) is the _{S 1 -S 1, S 2 -S} 2, S 3, S 3 radial partial cross-sectional view of the disc. Roller 20 shown in FIGS. 3A, 3B and 3B '
Is a thirteenth embodiment, in which the grooves 50a, 50a 'having a top portion or a bottom portion curved in the circumferential direction of the circumferential surface of the disk are formed in multiple steps in the circumferential direction, and the above-mentioned upper and lower disks forming a pair are described above. Groove
50a, 50a 'are mutually provided with a phase shift in a gear shape, that is, formed as a male-female shape, and preferably, a pair of upper and lower discs each have a convex curved cross-section in the circumferential surface axial direction, The roller 20 shown in FIGS. 9 (c) and 9 (c ') is a concave curve, which is a fourteenth embodiment, and has a groove 50b having a top or bottom bent in the circumferential direction of the disk. , 50b 'are formed in multiple stages in the circumferential direction, and the above-mentioned groove lines 50b, 50b' of each pair of upper and lower discs are formed by mutually providing a phase shift in a gear shape, and preferably, The cross section of the upper and lower discs in the axial direction of the circumferential surface is bent into convex and concave curves, and the roller 20 shown in FIG. Grooves 50c that are orthogonal to the axial direction are formed in multiple steps in the circumferential direction, and the above-mentioned groove 50c of each upper and lower disc that forms a pair is a peep to each other. It is characterized by being provided forced formed given a phase shift to be meshed with the gear shape.

The grooves 50a, 50a 'or 50b, 50b' are formed on the peripheral surface portion 60.
Alternatively, the paired corrugated roller 20 formed as 50c
However, since the widthwise meandering bend 43 having a relatively small amplitude is formed as a meandering or bending shape in the sheet width direction by being brought into close contact with the corrugated sheet 02, 02 'and rotating about the axis, the above-mentioned sheet is formed. The upper slip of the roller 20 on 02 ', 02 is completely prevented and effective, and at the same time, the corrugated sheet 02, 02' exerts a compressive external force in the flow direction and a tensile external force in the reverse direction by the roller 20. The above-mentioned seat 02 corresponding to the center axis 31 of each peak and the center axis 30 of each valley,
It is effective that the predetermined forward feed deformation 41. pullback deformation 42 is formed near each portion of 02 'and is sufficiently and stably formed by a relatively small external force without unnecessary residual stress. The plate-like sheet 20 'has its internal tension in the flow direction sufficiently flattened in the width direction, and it is possible to completely avoid the shear stress damage of the reinforced corrugated sheet 01' in the forming process.

The groove provided on the roller peripheral surface portion 60 is a general term for various concave and convex shapes, and in addition to the groove shapes 50a, 50b, 50c, various ridges, depressions, and independent types having ridge lines in directions other than the above. There are many things such as embossing and various undulating undulations, and it is easy to think of an appropriate combination and deformation of various grooves, which are all effective for the present invention.

Although the roller 20 is shown as a disk-connecting body, it is also effective to form the groove on the roller 20 which is intermittently constricted in the axial direction.

Although any material can be effectively used as the peripheral surface material of the roller 20, it is preferable to use an elastic material such as rubber or soft plastic, or a hard material such as metal or ceramics.

The sixteenth to twenty-first embodiments shown in FIG. 15 are parts of a corrugated sheet 02,02 ', 02 "according to the present invention, which are formed by forming a corrugated bent row 40 that is orthogonal to the flow direction. Is a perspective view,
In each of the sixteenth and seventeenth embodiments shown in FIGS. 14A and 14B, each wavy bent ridge array 40 has a substantially even step-prolonging ratio in the direction orthogonal to the flow direction thereof, that is, in the width direction. Specifically, the step-up rate of the wavy bent ridges 40 in each linear portion of the sheet 02 corresponding to each meandering valley central axis 30 of the reinforced corrugated sheet 01 or its peripheral strip-shaped portion and each meandering mountain center. axis
31 is characterized in that each linear portion of the sheet 02 corresponding to 31 and its peripheral strip-shaped portion are formed so as to have substantially the same step multiplication rate of the wavy bent ridge array 40, and preferably, the width. The above step repetition rate per unit width in the width direction is forced when the flat sheet 03 supplied to the corrugating roller 10 is bent and formed into the reinforced corrugated sheet 01 according to the present invention. The deformation amount per unit width, that is, the deformation ratio in the width direction is set to be substantially commensurate. In addition, the book 16,
In the seventeenth embodiment, each wavy bent ridge array 40 is formed by synchronizing its width-direction cycle with the width-direction cycles of the valleys and crest center axes 30 and 31 described above. However, in addition to this, the corrugated sheet is characterized in that it is formed out of synchronization with the period in the width direction of the row of rows 40 and the period in the width direction of the valleys and crest center axes 30 and 31. Is also effective for the manufacturing method and manufacturing apparatus of the present invention.

In the eighteenth embodiment shown in FIG. 14C, the corrugated sheet 02 has the wavy bending line 40 at the linear portions corresponding to the valley center axes 30 and the peripheral strip-shaped portions at the mountain center. The linear portion corresponding to the shaft 31 and its peripheral strip-shaped portion are characterized in that they are formed so as to be smaller than the step repetition rate of the wavy bent ridge array 40. In the nineteenth embodiment of FIG. The corrugated sheet 02 'is formed into a flat plate shape in each linear portion corresponding to each valley central axis 30 and its peripheral strip-shaped portion, and each mountain central axis
In each linear part corresponding to 31 and its peripheral band part,
The wavy bent line 40 is characterized by being formed, and each linear portion corresponding to each valley central axis 30 or each mountain central axis 31 in the eighteenth and nineteenth embodiments and each of its peripheral strip-shaped portions. An average value of the stepwise ratio in the width direction of the wavy bent ridge array 40 is obtained by bending and forming the flat sheet 03 supplied to the corrugating roller 10 to obtain a reinforced corrugated sheet 01.
That is, the reduction ratio in the width direction is substantially equivalent to the reduction ratio.

The corrugated sheet 02 'of the eighteenth and nineteenth examples is provided with corrugated central axis of each of the internal tensions in the flow direction generated when the corrugated roller 10 is supplied and corrugated.
In order to reduce the tension in the vicinity of each linear portion corresponding to 31 and its peripheral strip-shaped portion, and to increase the tension in each linear portion near each valley central axis 30 and its peripheral strip-shaped portion, This is effective in preventing shear damage at the time of forming a bend in each of the meandering inflection portions 6 and the vicinity thereof, and at the same time suppressing play wrinkles in the flow direction near the respective valley portions 5.

In the twentieth and twenty-first embodiments shown in FIGS. 8E and 8F, the corrugated sheet 02 ″ has a corrugated bent line 40 at each linear portion corresponding to each valley center axis 30 and its peripheral strip portion. At the same time, the pull-back deformation forming portion 41 in the reverse direction of the flow is provided, and at the same time, the wavy bending line 40 is formed at each linear portion corresponding to each mountain central axis 31 and its peripheral band portion. , A sheet-width-direction meandering fold 43 formed in a meandering shape or a zigzag shape in advance so as to traverse both of the pulling-back and forward-feeding deformation forming portions 41, 42. Preferably, the meandering fold 43 in the width direction is made as small as possible in its cross section in the sheet flow direction along with its amplitude and cycle, and the wavy fold line is described. 40 is the amplitude in the cross section of the sheet In the small and the pullback as possible, before feeding deformation formation 41 and 42, their respective flow direction, it is as much as possible to be moved deeply To deformed in reverse flow direction.

Although not shown, the corrugated sheet 02 ″ is also provided in addition to the above.
Is the pullback deformation forming part 41 or the forward deformation forming part
There is one characterized in that either one of 42 is formed in the above-mentioned predetermined portion and the above-mentioned corrugated bent line 40 is formed, which is effective in the present invention.

The widthwise meandering bend 43 is not limited to one having a ridge line of a continuous curvilinear meandering shape or a zigzag bending linear meandering shape, but also a discontinuous curvilinear shape, various bending linear shapes, and the discontinuity curve and the bending line. It is also effective for the present invention that it is formed as a meandering shape such as a complex linear shape, an intermittent curved shape and the same bent linear shape. Various corrugated sheet sheets 02, 02 ', 02 "shown in the above examples are obtained by appropriately combining the shapes thereof, and those obtained by easily inventing the deformation of the shapes are also included in the present invention. It is valid.

There are two types of corrugated sheet 02, 02 ', 02 "of the above-mentioned embodiments, which are formed by corrugation in the corrugating process, and those obtained by corrugating in advance in the papermaking process. Both are effective for the present invention.

<Effects of the Invention> As described above, in the method for manufacturing a reinforced corrugated sheet according to the present invention, the corrugated sheet having the corrugated ridges formed in advance in the direction perpendicular to the flow direction is supplied to the corrugating roller. The reinforced corrugated sheet is in the process of being bent and formed at the tops and bottoms of the corrugated row in the widthwise direction of the sheet to form a meandering shape. By flattening as much as possible, in the corrugated ridges of the reinforced corrugated sheet in the above-mentioned forming process, the shear stress that is unavoidably generated in the vicinity of the inflection part of the corrugated ridges is reduced, so that tear damage is prevented. As a result, it has become possible to manufacture reinforced corrugated sheets with a high yield and high speed, which could not have been expected with conventional manufacturing methods.

More specifically, a roller and a stationary body, which have a shape in the vicinity of the contact portion that is intermittently constricted or convex in the axial direction, are provided near each portion on the corrugated sheet corresponding to each peak center axis and each valley center axis. By applying compression external force and tensile external force in close contact with each other, and more desirably by forming forward feed deformation and pullback deformation in advance, it is possible to form near the respective parts on the reinforced corrugated sheet in the forming process corresponding to each neutral axis. In order to reduce the above-mentioned shear stress that must be generated in
It is possible to suppress and prevent the shear damage of the reinforced corrugated sheet near that part, and as a result, the shape conditions are amplitude ratio H / L> 0.35, meandering polymerization rate D / L> 0.5, meandering rate D.
Although /N>0.2, the folding process of the reinforced corrugated sheet with a relatively deep degree of folding has been regarded as difficult by the conventional manufacturing method. However, according to the manufacturing method and the manufacturing apparatus of the present invention, Since the bending process can be achieved reliably, stably, and at high speed, the productivity of the reinforced corrugated sheet is significantly improved, and the manufacturing cost is reduced.

The first embodiment shown in FIG. 1 is a reinforced corrugated sheet 01 in which a corrugated ridge 1 is formed by forming each top portion 2 and bottom portion 3 in a meandering shape in the width direction within the sealing surface. However, the reinforced corrugated sheet 01 is used as a corrugated sheet such as a building material formed by a synthetic resin sheet or paper alone as an interference sheet such as a packaging material, and has a higher mechanical strength than a conventional similar sheet. I was able to demonstrate the performance. In addition, the above-mentioned reinforced corrugated sheet 01
A reinforced corrugated sheet composite in which a flat sheet or corrugated sheet is formed on one side or both sides by a method such as pasting, welding, and binding, and a plurality of the above-mentioned reinforced corrugated sheets 01 are flat sheet or corrugated sheet. There are many applied products such as composite reinforced corrugated composites formed by methods such as laminating, fusing, and fastening each other through sheets, and all of them use various materials such as paper, synthetic resin sheet, and metal sheet. It was revealed that the various reinforced corrugated composites according to the present invention as the obtained packaging sheets, building material sheets, etc. have higher mechanical performance than conventional similar sheets.

Separately from this, a molding method in which a material such as synthetic resin or aluminum is used, which can repeat predetermined reciprocating motion in a direction orthogonal to the extrusion direction, and a molding method in which extrusion is performed in the corrugated shaft direction through a molding die. By the above, a sheet having the same shape as the reinforced corrugated sheet 01 according to the present invention can be manufactured, and the sheet having the above shape can be integrally formed on one side or both sides thereof with a single or a plurality of flat sheet-shaped portions in advance by using the above method. There is a reinforced corrugated one-piece molded sheet obtained by this, and it has exhibited extremely high mechanical properties as compared with the conventional similar corrugated one-piece molded sheet.

[Brief description of drawings]

FIG. 1 is a perspective view of a first embodiment of a reinforced corrugated sheet obtained by the manufacturing method according to the present invention, and FIG. 2 is a second embodiment of a corrugating roller constituting the manufacturing method according to the present invention. The figure (a) is the fracture | rupture perspective view, the figure (b) is the peripheral surface partial development view, the figure (c).
Is a sectional view taken along line S-S, and FIG. 3 is a schematic view showing a conventional example relating to all steps of a conventional manufacturing method. FIG. 3A is a plan view thereof, and FIGS. , (D) are each S ₁ −
S ₁ sectional view, S ₂ -S ₂ sectional view, S ₃ -S ₃ sectional view, and FIG. 4 schematically show a third embodiment relating to all steps of the manufacturing method of the present invention. a) is a plan view thereof, FIG.
(C), (d) its S ₁ -S ₁ cross-sectional view, S ₂ -S ₂ sectional view, S ₃
-S ₃ cross-sectional view, FIG. 5 is a fourth embodiment for all steps of the manufacturing method of the present invention is shown in schematic style, FIG (a) is its plan view and FIG. (B), (c ), (D), and (e) are S ₁ -S ₁ sectional views, S ₂ -S ₂ sectional views, S ₃ -S ₃ sectional views, and S ₄ -S _{4 respectively.}
It is sectional drawing. FIGS. 6 to 13 show respective fifth to twelfth embodiments relating to the manufacturing method of the present invention and the main apparatus constituting the same, and each drawing (a) is its perspective view and each drawing ( b) is its plan view, and each of the figures (c), (d), (e) and (f) is its S ₁ −.
S ₁ cross-sectional view, S ₂ -S ₂ sectional view, S ₃ -S ₃ cross section, a S ₄ -S ₄ cross-sectional view. FIG. 14 shows a roller which is a force applying member according to the present invention.
Embodiments to 15th embodiment are shown in FIG.
(B), (b ') , (e) each perspective partial view of the thirteenth embodiment, partial side view, S ₁ -S ₁ cross-sectional view, FIG. (C), (c')
Each partial side view of the fourteenth embodiment, S ₂ -S ₂ sectional view, FIG. (D), (g) Each partial side view of the fifteenth embodiment, a S ₃ -S ₃ cross-sectional view. FIG. 15 is a partial perspective view of 16th to 12th embodiments relating to a corrugated sheet according to the present invention. 01 …… Reinforced corrugated sheet 01 ′ …… Reinforced corrugated sheet in the process of forming 02 …… Corrugated sheet 02 ′, 02 ″ …… Corrugated sheet with flattened tension distribution 03 …… Flat sheet 03 ′ …… Corrugated sheet in the process of formation 1 …… Corrugated ridge line 2 …… Corrugated ridge top 3 …… Corrugated ridge bottom 4 …… Corrugated ridge meandering valley Part 5 ...... meandering mountain part of corrugated ridge line 6 ...... inflection part of corrugated ridge line 7 ...... corrugated groove line 8 ...... top of corrugated groove line 9 ...... bottom of corrugated groove line 10 ...... corrugated processing Roller 18 …… Axis fixed type / single / cylindrical roller 19 …… Axis parallel movement type / single / cylindrical roller 20 …… Axis fixed type / in-phase / pair corrugated roller 20 ′ …… Axis fixed type / single type / waveform Roller 21 …… Axis parallel movement type, in-phase, corrugated roller 21 ′ …… Axis parallel Dynamic type, single unit, corrugated roller 22 …… Axis parallel movement type, offset phase, paired roller 23 …… Axis fixed type, curved type, offset phase, paired corrugated roller 24 …… Corrugated stationary member 30 …… Serpentine type Center axis of the valley 31 …… Serpentine peak center axis 32 …… Meandering neutral axis 40 …… Wavy fold line 41 …… Forward feed deformation forming part 42 …… Pullback deformation forming part 43 …… Axial meandering fold songs 50a, 50a ', 50b, 50b ', 50c ...... groove line 60 ...... disc peripheral surface, a large diameter circumferential surface portion, the convex portion 61 ...... disc connecting portion, the small diameter peripheral surface portion, the concave portion T _4, T ₄ ′, T ₄ ″ …… Valley center axis tension vector T ₅ , T ₅ ′, T ₅ ″ …… Mountain center axis tension vector T ₆ , T ₆ ′, T ₆ ″ …… Neutral axis tension vector L ₁ , L ₁ ′ ... Marking line on corrugated sheet L ₂ …… Marking line on reinforced corrugated sheet L …… Corrugated cross-section in orthogonal cross section of corrugated row H …… Corrugated Corrugated cross-section in cross section of corrugated row Amplitude length N: meandering period length of corrugated ridge D: meandering amplitude length of corrugated ridge

Claims (17)

[Claims] 1. A corrugated sheet having a corrugated bent row formed in a straight line in the flow direction is fed to a corrugating roller, and each top and bottom of the corrugated row is provided with a sheet in-plane width. In a method for manufacturing a reinforced corrugated sheet obtained by bending the sheet in a zigzag shape in a direction, the corrugated sheet and the reinforced corrugated sheet in the corrugation forming process are distributed in the sheet width direction of each tension in the in-plane flow direction. A method for manufacturing a reinforced corrugated sheet, characterized in that the sheet is flattened as much as possible. 2. The corrugated sheet is pulled back and deformed in the direction opposite to the flow at each linear portion corresponding to each central axis of the troughs and its peripheral strip portion, and at the same time, each corrugated sheet is deformed. Each linear portion corresponding to the mountain center axis and its peripheral strip-shaped portion are subjected to forward feed deformation in the flow direction, or after being subjected to any one of the above deformations, they are supplied to the corrugating roller. A method of manufacturing a reinforced corrugated sheet according to claim 1. 3. The corrugated sheet, wherein the corrugated sheet is subjected to a tensile external force in a direction orthogonal to the width direction of the sheet surface at and near each portion corresponding to each central axis of the meandering valleys. The method for producing a reinforced corrugated sheet according to claim 1 or 2, wherein the reinforcing corrugated sheet is supplied to a processing roller. 4. The corrugated sheet is subjected to a compressive external force in a direction orthogonal to the in-plane width direction of the sheet at and near each portion corresponding to each meandering crest central axis. The method for producing a reinforced corrugated sheet according to any one of claims 1 to 3, characterized in that the reinforced corrugated sheet is supplied to a corrugating roller. 5. The corrugated sheet is formed in advance so as to have a corrugated bent row which is substantially uniform in the width direction and has a straight line in the flow direction. A method of manufacturing a reinforced corrugated sheet according to any one of claims 1 to 4. 6. The corrugated sheet is formed in advance in the vicinity of each portion corresponding to the central axis of the trough of the corrugated sheet, and the corrugated sheet has a step-up ratio of a corrugated folded row, and the meandering peak is formed. The invention is characterized in that it is formed in the vicinity of each portion corresponding to the shaft and is made relatively smaller than the step repetition rate of the wavy bent line.
Item 5. A method for producing a reinforced corrugated sheet according to any one of items 4 to 4. 7. The corrugated sheet is formed as a flat surface in advance at each linear portion corresponding to the center axis of the valley of the meandering shape and its peripheral strip portion without being provided with a corrugated bent line. The method for producing a reinforced corrugated sheet according to any one of claims 1 to 4, wherein: 8. The corrugated sheet is preliminarily subjected to pullback deformation in a flow reverse direction at each linear portion corresponding to the meandering valley central axis and its peripheral strip-shaped portion, and at the same time, at the same time as the meandering mountain central axis. Claims characterized in that each corresponding linear portion and its peripheral strip portion are formed so as to be subjected to forward feed deformation in the flow direction, or to be deformed by one of the above deformations. A method for manufacturing a reinforced corrugated sheet according to any one of claims 1 to 7. 9. A corrugated sheet in which corrugated bent rows orthogonal to the flow direction are formed in advance, wherein the sheet is formed in and around each portion corresponding to each meandering center axis of the valley. A tensile external force is applied in a direction orthogonal to the in-plane width direction, or a compressive external force is applied to each portion and its vicinity corresponding to each of the meandering mountain peak axes in a direction orthogonal to the in-plane width direction. The corrugated sheet fed by the corrugating roller provided at a short distance downstream from the corrugated sheet is used. In a manufacturing apparatus for a reinforced corrugated sheet, which is obtained by bending each top and bottom of a corrugated ridge in the width direction of the seat surface as a meandering shape, in the meandering shape, each center axis of each trough or each center axis of each mountain or both An apparatus for manufacturing a reinforced corrugate characterized in that the external force is applied by a single or a plurality of forceps arranged so as to be in intimate contact with each portion and its vicinity on the corrugated sheet corresponding to the shaft. . 10. The corrugated sheet comes into close contact with each of the meandering peaks or troughs of the corrugated sheet or in the vicinity of respective portions corresponding to the central axes thereof, and substantially coincides with the width direction of the corrugated sheet. 10. The apparatus for manufacturing a reinforced corrugated sheet according to claim 9, wherein a single roller or a pair of rollers arranged in the axial direction is used as the force applying member. 11. The corrugated sheet closely adheres to the meandering peaks or troughs of the corrugated sheet or to portions near the respective central axes and substantially coincides with the width direction of the corrugated sheet. The apparatus for manufacturing a reinforced corrugated sheet according to claim 9, wherein a single body or a pair of stationary members arranged in the axial direction is used as the force applying member. 12. The pair of rollers, each of which has a plurality of grooves formed on the rotating surface closely contacted with the corrugated sheet, is used as the force applying member. Item 9. An apparatus for producing a reinforced corrugated sheet according to any one of items 9 and 10. 13. The function of a roller for bending the corrugated sheet formed by forming the corrugated ridge line in the direction perpendicular to the flow direction, or generated when the corrugated sheet is processed. 10. The roller having a function of flattening the inclination distribution of each tension in the sheet flow direction in the sheet width direction, or the roller having the function of both the rollers, the claim 9, claim 10, Item 13. A manufacturing apparatus for a reinforced corrugated sheet according to any one of items 12. 14. The corrugated sheet is formed in advance so as to have a corrugated bent row which is substantially uniform in the width direction and has a straight line rectilinear in the flow direction. An apparatus for manufacturing a reinforced corrugated sheet according to any one of claims 9 to 13. 15. The corrugated sheet is formed in the vicinity of each portion corresponding to the central axis of the trough of the corrugated sheet in advance, and the corrugated plate-shaped folded rows are stepped to obtain a serpentine peak center. 14. The method according to any one of claims 9 to 13, characterized in that it is formed in the vicinity of each portion corresponding to the axis and is made relatively smaller than the step repetition rate of the wavy bent ridge array. Manufacturing equipment for reinforced corrugated sheets. 16. The corrugated sheet is formed as a flat surface in advance at each linear portion corresponding to the meandering valley central axis and its peripheral strip-shaped portion without being provided with wavy bent lines. An apparatus for manufacturing a reinforced corrugated sheet according to any one of claims 9 to 13, characterized in that 17. The corrugated sheet is preliminarily subjected to pullback deformation in a flow reverse direction at each linear portion corresponding to the meandering valley central axis and its peripheral strip portion, at the same time,
Each of the linear portions corresponding to the central axis of the meandering mountain and its peripheral strip-shaped portions can be formed so as to be subjected to forward feed deformation in the flow direction, or to be formed to be able to be deformed in any one of the above. An apparatus for manufacturing a reinforced corrugated sheet according to any one of claims 9 to 13, which is characterized.