JPS6016337B2 - How to expand honeycomb core - Google Patents

Description

【発明の詳細な説明】 「産業上の利用分野」 本発明は、末展張ハニカムコアの展張方法に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a method for expanding a stretched honeycomb core.

「従来の技術」 従来の末展張ハニカムコァの辰張方法は、素材シートを
所定枚数積層することによって形成された禾展張ハニカ
ムコアの両端部にピンを差し込み、このピソを展張機で
引張って隈張する方法か、またはピンを使用せず、人力
により端部を掴持して展張する方法などであった。``Prior art'' The conventional method for tensioning end-stretched honeycomb cores is to insert pins into both ends of the end-stretched honeycomb core, which is formed by laminating a predetermined number of material sheets, and to stretch the ends with a stretching machine. In other methods, the ends were held and stretched manually without using pins.

「発明が解決しようとする問題点」 上述した従来の辰張方法では、 ‘ａ｝ １個ずつ展張するために、展張方向の両端部に
おけるセル形状の均一なものが得られず、且つ歩蟹りも
悪い。``Problems to be Solved by the Invention'' In the conventional stretching method described above, 'a} Because cells are stretched one by one, uniform cell shapes cannot be obtained at both ends in the stretching direction. It's also bad.

｛ｂ’ハニカムコア素材の材質によっては、辰張ぐせが
付き難く、最張されても時間の経過と共に収縮する。{b' Depending on the material of the honeycomb core material, it is difficult to form tension curls, and even if it is stretched to the maximum, it will shrink over time.

などの問題点を有している。It has problems such as:

「問題点を解決するための手段」 本発明は、上記の問題点に鑑み、従来技術の上記欠点を
解消すべくなされたものであって、エンドレス状に成形
された末展張ハニカムコアを、その一端から順次展張方
向に直交する両側より絞り込むよう構成した絞り機によ
って、この絞り機を通過した屍張過程のハニカムコアが
スプリングバックにより略所定展張成形幅となるよう一
旦展張成形幅より幅狭に絞り込み、次に、前記絞り機を
経て略所定展張成形幅にスプリングバックした展張過程
のハニカムコアの端部を、簾張成形されるハニカムコア
の厚さより短く、かつ、先鋭形状をした突起を適宜ピッ
チで多数楯設した回転ベルトを有する展張機上に載直し
、該展張機を回転せしめることによって、さらにやや展
張しつつ連続的にハニカムコアを展張成形するようにし
たものである。"Means for Solving the Problems" In view of the above-mentioned problems, the present invention has been made to solve the above-mentioned drawbacks of the prior art. Using a drawing machine configured to squeeze from one end sequentially from both sides orthogonal to the stretching direction, the honeycomb core in the process of being stretched after passing through this drawing machine is once narrowed to a width narrower than the stretching width so that it becomes approximately the predetermined stretching width due to springback. Next, the ends of the honeycomb core in the stretching process, which have been spring-backed to a substantially predetermined stretching width through the squeezing machine, are appropriately formed with sharp-pointed protrusions that are shorter than the thickness of the honeycomb core to be stretched. The honeycomb core is placed on a stretching machine having a rotating belt arranged at multiple pitches, and by rotating the stretching machine, the honeycomb core is continuously stretched and formed while being further slightly stretched.

「作用」 エンドレス状に成形された未展張ハニカムコアは、その
一端部から順次絞り機を経た展張過程のハニカムコアが
スプリングバックによって略展張成形幅となるよう絞り
機によって絞り込まれ、次に絞り機を経てスプリングバ
ックした展張過程のハニカムコァは、辰張成形されるハ
ニカムコアの厚さより短く、かつ、先鋭形状をした突起
を多数権設した回転ベルトを有する展張機により、さら
に、やや展張ごれつつ連続して展張成形される。"Operation" An unexpanded honeycomb core formed into an endless shape is sequentially passed through a drawing machine from one end, and the honeycomb core in the expanding process is squeezed by a drawing machine so that it has approximately the expanded width due to springback. The honeycomb core, which is in the process of being expanded after springing back, is further expanded slightly by a stretching machine that has a rotating belt that is shorter than the thickness of the honeycomb core to be formed and is equipped with many sharp-pointed protrusions. Continuously stretch-molded.

この連続展張の過程において、末展張ハニカムコアは回
転ベルトの移動により日頃次絞り機に引き込まれ絞り込
まれながら絞り機から送り出される。したがって、展張
成形されたハニカムコアは時間が経過しても殆んど収縮
することはなく、また、均一な幅を有すると共に、各セ
ルの形状も略均一な形状を呈する。「実施例」 以下、本発明を図面に示す実施例に基づいて説明する。In the process of continuous expansion, the end-expanded honeycomb core is drawn into the drawing machine by the movement of the rotating belt and sent out from the drawing machine while being squeezed. Therefore, the stretch-molded honeycomb core hardly shrinks over time, has a uniform width, and each cell has a substantially uniform shape. "Embodiments" The present invention will be described below based on embodiments shown in the drawings.

先ず、本発明の実施に使用するハニカムコアの辰張装置
について説明する。第１図乃至第５図において、１は辰
張装置であり、この辰張装置１は以下の如く構成されて
いる。First, a honeycomb core tensioning device used in carrying out the present invention will be explained. In FIGS. 1 to 5, reference numeral 1 denotes a tension device, and this tension device 1 is constructed as follows.

すなわち、後述のエンドレス状に成形された末展張ハニ
カムコア１０を載暦するためのテーフル２の先端部に間
隔調整可能に設けられた一対の未展張ハニカムコア１０
の厚さより厚い厚さを有する回動自在な絞りローラ３，
３を備えた絞り機４と、展張成形されるハニカムコアの
厚さより短く、かつ、先鋭ピン状の突起５，５，・・・
・・・・・・・・・を適宜ピッチで多数楠設し適宜駆動
源（図示せず）によって回転可能に構成された平板状の
回転ベルト６を有する展張機７とからなり、絞り機４と
辰張機７はテーブル２面と回転ベルト６面とが略同一平
面上に位置すると共に、絞り機４に続き辰張機７が所定
間隔を存して配設されている。次に、上述の展張装置を
用いて禾展張ハニカムコアを展張成形するハニカムコア
の展張方法について説明する。That is, a pair of unexpanded honeycomb cores 10 are provided at the tip of a tapered part 2 for mounting end-expanded expanded honeycomb cores 10 formed into an endless shape, which will be described later, so that the interval can be adjusted.
a rotatable squeezing roller 3 having a thickness greater than the thickness of the
3 and a sharp pin-shaped protrusion 5 shorter than the thickness of the honeycomb core to be stretch-molded.
A stretching machine 7 has a rotating belt 6 in the form of a flat plate, which is configured to be rotatable by an appropriate driving source (not shown), and a stretching machine 7, which is configured to have a large number of lintels installed at an appropriate pitch, and to be rotatable by an appropriate driving source (not shown). The 2 sides of the table and the 6 sides of the rotating belt are located on substantially the same plane, and the 2 sides of the table 2 and the 6 sides of the rotating belt are located on the same plane, and the 2 sides of the table 2 and the 6 sides of the rotating belt 6 are located next to the wringer 4 at a predetermined interval. Next, a description will be given of a honeycomb core stretching method in which a honeycomb core is stretch-molded using the above-mentioned stretching device.

１０はエンドレス状に成形された未辰張ハニカムコアで
あり、この禾展張ハニカムコアー川ま、例えば、展張後
各セル１１，１１・・・・・・・・・・・・の形状が略
正六角形となるよう所定枚数の素材シートを接着剤を介
し積層することによって形成された単位末展張ハニカム
コア９を多数接続することによって成形されている。こ
のエンドレス状に成形された末展張ハニカムコア１０を
展張成形する際には、先ず、一対の回転ローラの間隔を
、この間隔が、この絞りローラ３，３により一旦強制的
に絞り込まれると共に、折り癖をつけられた辰張過程の
ハニカムコア１０ａが絞りｏーラ３，３を経た後、スプ
リングバックによってその幅が所定展張成形幅より僅か
幅広となるよう設定し、次に、絞りローラ３，３間の中
心と末展張ハニカムコア１０の幅方向中心が略−致する
よう夫展張ハニカムコア１０を絞りローラ３，３に当接
せしめた後、未展張ハニカムコア１０の中央端部を欄持
して未辰張ハニカムコア１０の端部をその展張方向が絞
りローラ３，３を結ぶ中心線と直交する方向に強制的に
絞りローラ３，３間を通過せしめて所望長さに引き出す
。絞りローラ３，３間を経た辰張経過のハニカムコア１
０ａは絞りローラ３，３によって一旦強制的に所定展張
成形幅より幅狭に絞り込まれると共に、折り癖をつけら
れた後、所定展張成形幅より僅か幅広にスプリングバッ
クする。この所定展張成形幅より僅か幅広にスプリング
バックしたハニカムコア１０ａの端部を静止状態にある
回転ベルト６の端部上に各セル１１，１１・・・・・…
・・・・内に突起５，５が臨むよう敷遣し、次に回転ベ
ルト６を駆動せしめれば、末展張状態のハニカムコア１
０は順次絞りローラ３，３間に引き込まれ、絞り込まれ
つつ折り癖をつけられながら絞りローラ３，３から送り
出され辰張機７上に移動する。辰張機７上に移動した展
張成形過程のハニカムコア１０ａの各セル１１，１１…
………はスプリングバックにより既に略所定形状（略正
六角形状）に成形されており、略展張成形されたハニカ
ムコア１０ａは空隙率が大きく（空間が９０〜９９％）
、またハニカムコアを形成するセル壁１２の厚さ（素材
の厚さ）が極めて薄い上、回転ベルト６上に楯設された
突起の長さがハニカムコア１０ａの厚さよりかなり短く
設定されているので、辰張機７の端部に移動してきた展
張成形過程のハニカムコア１０ａの各セル１１，１１…
………内には順次突起５，５・・…・・・・…がそれら
のセル壁１２，１２…………に刺さることなく、またそ
れらを損傷させることなく挿入されセル壁１２に当接し
た突起５，５・・・・・・・・・・・・によって展張成
形過程のハニカムコア１０ａは、さらにやや展張されつ
つ展張機７上を移動することによってエンドレス状に成
形された未屍張ハニカムコア１０は連続して展張成形さ
れる。したがって、連続して展張成形されたハニカムコ
ァ１０ｂは略均一な幅を有すると共に、その各セル１１
，１１・・・・・・・・・・・・は略均一な六角形状を
呈している。なお、本実施例においては、展張機７の構
成について、平板状の回転ベルト６上に独立したピン状
の突起５，５を多数桶設した構成について説明したが、
回転ベルト、突起の構成は実施例に限定されるものでは
なく、例えば、第６図ａ，ｂに示す如く、所定間隔を存
して複数のＶベルト１６，１６・・・・・・・・・・・
・を設けてもよく、また、突起についても支持片１５ａ
の両端に対向して先鋭突起１５ｂ，１５ｂを立設して構
成された突起１５を適宜ピッチで多数楯設する構成であ
ってもよい。Reference numeral 10 denotes an unstretched honeycomb core formed into an endless shape. For example, after stretching, the shape of each cell 11, 11... is approximately a regular hexagonal shape. It is formed by connecting a large number of unit expanded honeycomb cores 9 formed by laminating a predetermined number of material sheets via an adhesive so as to form a rectangular shape. When stretch-molding the end-stretched honeycomb core 10 formed into an endless shape, first, the distance between the pair of rotating rollers is once forcibly narrowed down by the squeezing rollers 3, and then folded. After the honeycomb core 10a which is in the process of being tightened has passed through the squeezing rollers 3, 3, its width is set to be slightly wider than the predetermined stretching forming width due to springback, and then the squeezing rollers 3, After the expanded stretched honeycomb core 10 is brought into contact with the squeezing rollers 3, 3 so that the center of the unexpanded honeycomb core 10 in the width direction is approximately aligned with the center of the end expanded honeycomb core 10, the central end of the unexpanded honeycomb core 10 is held on a rail. Then, the end of the unstretched honeycomb core 10 is forcibly passed between the squeezing rollers 3 in a direction perpendicular to the center line connecting the squeezing rollers 3, 3, and pulled out to a desired length. Honeycomb core 1 with a tatami finish after passing between squeezing rollers 3 and 3
0a is once forcibly narrowed down to a width narrower than the predetermined stretch-forming width by the squeezing rollers 3, 3, and after being creased, it springs back to a width slightly wider than the predetermined stretch-forming width. The end of the honeycomb core 10a, which has been springbacked to a width slightly wider than the predetermined stretching width, is placed on the end of the rotating belt 6, which is in a stationary state, for each cell 11, 11...
If the honeycomb core 1 is placed so that the protrusions 5, 5 face inside, and then the rotating belt 6 is driven, the honeycomb core 1 in the end-expanded state is
The paper 0 is sequentially drawn between the squeezing rollers 3, 3, and is sent out from the squeezing rollers 3, 3 while being squeezed and creased, and moved onto the tensioner 7. Each cell 11, 11 of the honeycomb core 10a in the stretch forming process moved onto the tassel stretching machine 7...
...... has already been formed into a substantially predetermined shape (substantially regular hexagonal shape) by springback, and the honeycomb core 10a that has been substantially stretched has a large porosity (90 to 99% space).
Furthermore, the thickness of the cell walls 12 forming the honeycomb core (thickness of the material) is extremely thin, and the length of the projections provided on the rotating belt 6 is set to be considerably shorter than the thickness of the honeycomb core 10a. Therefore, each cell 11, 11, .
The protrusions 5, 5, . The honeycomb core 10a in the stretch-forming process is further expanded slightly by the contacting protrusions 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5... The stretched honeycomb core 10 is continuously stretched and formed. Therefore, the honeycomb core 10b that is continuously stretch-molded has a substantially uniform width, and each cell 11 of the honeycomb core 10b has a substantially uniform width.
, 11...... have a substantially uniform hexagonal shape. In this embodiment, the configuration of the spreading machine 7 was explained in which a large number of independent pin-shaped protrusions 5, 5 were provided on the flat rotary belt 6.
The configuration of the rotating belt and the protrusions is not limited to the embodiment. For example, as shown in FIGS. ...
* may be provided, and the support piece 15a may also be provided for the protrusion.
The configuration may be such that a large number of protrusions 15, which are configured by erecting sharp protrusions 15b and 15b facing both ends of the protrusions 15, are provided at an appropriate pitch.

また、絞り機についても実施例に限定されるものではな
く、第７図に示す如く、調節可能に構成された一対の絞
り板１３を設ける構成であってもよい。「発明の効果」 以上、詳述した如く本発明によれば、エンドレス状に成
形された末展張ハニカムコアを連続して展張成形するた
め、セル形状および幅が略均一なハニカムコアを成形す
ることができると共に、展張成形されたハニカムコァが
時間経過と共に収縮することがなく寸法の安定したハニ
カムコァを容易に成形できる等、実用上極めて優れた効
果を発揮する。Further, the diaphragm is not limited to the embodiment, and may be configured to include a pair of adjustable diaphragm plates 13 as shown in FIG. 7. "Effects of the Invention" As detailed above, according to the present invention, the end-expanded stretched honeycomb core formed into an endless shape is continuously stretch-molded, so that a honeycomb core having a substantially uniform cell shape and width can be formed. In addition, the honeycomb core that has been stretch-molded does not shrink over time, and it is possible to easily form a honeycomb core with stable dimensions, which provides extremely excellent practical effects.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図および第２図は、本発明方法に係るハニカムコア
の辰張方法を具体的に実施した例としての展張装置を示
し、第１図はその平面図、第２図は第１図のローロ線に
沿う断面図、第３図は第１図のＡ部の詳細図、第４図は
第２図のＢ部の詳細図、第５図はハニカムコアの説明図
、第６図ａ，ｂはそれぞれ回転ベルトおよび突起の他の
実施例を示す要部の平面図および断面図、第７図は絞り
機の他の実施例の平面図である。 １・・・・・・展張装置、２・・・・・・テーフル、３
・・・・・・絞りローラ、４・・・・・・絞り機、５，
１５・・・・・・突起、６，１６・・・・・・回転ベル
ト、７・・・・・・展張機、９…・・・単位未辰張ハニ
カムコア、１０・・・・・・未展張ハニカムコア、１０
ａ・・・・・・展張成形過程のハニカムコア、１ｏｂ・
・・・・・展張成形されたハニカムコア、１１…・・・
セル、１２……セル壁、１３……絞り板。 ／汐ソ物 ／ギ２劇 ／がｊ劇 ／汐々刻 ′メタ物 カメの ／汐〆燐 ガノ幼1 and 2 show a stretching device as an example of concretely carrying out the method of stretching a honeycomb core according to the method of the present invention, FIG. 1 is a plan view thereof, and FIG. 3 is a detailed view of part A in Fig. 1, Fig. 4 is a detailed view of part B in Fig. 2, Fig. 5 is an explanatory diagram of the honeycomb core, Fig. 6 a, b is a plan view and a cross-sectional view of essential parts showing another embodiment of the rotating belt and the protrusion, respectively, and FIG. 7 is a plan view of another embodiment of the wringer. 1... Expansion device, 2... Tefle, 3
... Squeezing roller, 4... Squeezing machine, 5,
15... Protrusion, 6, 16... Rotating belt, 7... Expanding machine, 9... Unit unstretched honeycomb core, 10... Unexpanded honeycomb core, 10
a...Honeycomb core in the stretch forming process, 1ob.
...Expansion-molded honeycomb core, 11...
Cell, 12...Cell wall, 13...Aperture plate. / Shio Somono / Gi 2 Drama / Gaj Drama / Shio Shikoku'Metamono Turtle / Shio〆Ring Gano Young

Claims (1)

【特許請求の範囲】[Claims] １ エンドレス状に成形された未展張ハニカムコアを、
その一端から順次展張方向に直交する両側より絞り込む
よう構成した絞り機によつて、この絞り機を通過した展
張過程のハニカムコアがスプリングバツクにより略所定
展張成形幅となるよう一旦展張成形幅より幅狭に絞り込
み、次に、前記絞り機を経て略所定展張成形幅にスプリ
ングバツクした展張過程のハニカムコアの端部を、展張
成形されるハニカムコアの厚さより短く、かつ、先鋭形
状をした突起を適宜ピツチで多数植設した回転ベルトを
有する展張機上に載置し、該展張機を回転せしめること
によつて、さらにやや展張しつつ連続的にハニカムコア
を展張成形することを特徴とするハニカムコアの展張方
法。1 An unexpanded honeycomb core formed into an endless shape,
A drawing machine configured to squeeze the honeycomb core sequentially from one end and from both sides orthogonal to the stretching direction is used to make the honeycomb core, which has passed through this drawing machine and is in the process of being stretched, have a predetermined stretching width due to spring back. Next, the ends of the honeycomb core in the process of being expanded, which have been spring-backed to a substantially predetermined width through the drawing machine, are formed with protrusions that are shorter than the thickness of the honeycomb core to be expanded and have a pointed shape. A honeycomb characterized by being placed on a stretching machine having a rotating belt installed in large numbers at appropriate pitches, and by rotating the stretching machine, the honeycomb core is continuously stretched and formed while being further slightly stretched. How to expand the core.