JPS5942634B2 - Honeycomb core manufacturing method - Google Patents

Description

【発明の詳細な説明】 この発明は透孔と平行な方向の長さの制約を大幅に軽減
し、製品の品質を一定にすることを目的としたハニカム
コアの製造法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a honeycomb core, which aims to significantly reduce the restriction on the length in the direction parallel to the through holes and to make the quality of the product constant.

従来帯状材料の進行方向と平行に接着剤を線状に塗布し
、これを円形ドラムに巻いて積層し、所。定厚さになつ
たならば取外して、切断後加圧接着してから引伸すよう
にしたハニカムコアの製造法が知られているが、このよ
うな製造法においては、ハニカムコアの幅は帯状材料の
幅に限定され、幅の選定に制約を受ける実情であつた。
また接着剤の塗布を帯状材料の進行方向と直角に塗布し
、これを所定長さに切断して積層した後加圧接着する方
法も知られているが（特公昭３９−２９２１８号）この
場合には切断された材料を一枚宛正確に積み重ねるのが
むつかしく、特に腰の弱い材料（例えば薄いプラスチッ
クフィルム又は薄い紙など）では積み重ね作業がきわめ
て困難であつた。然るにこの発明によれば、接着剤の塗
布を帯状材料の進行方向と直角にしかつ巻取方式とした
ので、ハニカムコアの幅に対する制約を大幅に軽減する
と共に、積み重ねの困難性がなく品質のバラツキを減少
させるなどの利点を期待することができるようになつた
のである。即ちこの発明を第１図および第２図の実施例
について説明すれば、比較的薄い帯状加工紙１を水平移
動させ乍ら帯状加工紙１を塗布ロール２と受ロール３に
よつて挟着し、接着剤４を加圧紙１の進行方向と直角に
所定間隔で塗布し、乾燥装置９で接着剤を予備乾燥した
後、そのまゝ円形ドラム５へ巻き取る。Conventionally, adhesive is applied in a line parallel to the direction of travel of the strip material, which is then rolled around a circular drum and laminated. There is a known manufacturing method for honeycomb cores in which the core is removed once it reaches a certain thickness, cut, bonded under pressure, and then stretched.In this manufacturing method, the width of the honeycomb core is The actual situation was that the width of the material was limited and the selection of the width was restricted.
There is also a known method of applying adhesive perpendicular to the traveling direction of a strip of material, cutting it to a predetermined length, laminating it, and then bonding it under pressure (Japanese Patent Publication No. 39-29218). It is difficult to accurately stack the cut materials one by one, and the stacking operation is particularly difficult for weak materials (such as thin plastic film or thin paper). However, according to the present invention, the adhesive is applied perpendicularly to the traveling direction of the strip material and is wound up, which greatly reduces restrictions on the width of the honeycomb core, and also eliminates the difficulty of stacking and eliminates variations in quality. It is now possible to expect benefits such as a reduction in That is, to explain the present invention with reference to the embodiments shown in FIGS. 1 and 2, a relatively thin strip-shaped processed paper 1 is moved horizontally, and the strip-shaped processed paper 1 is sandwiched between an applicator roll 2 and a receiving roll 3. The adhesive 4 is applied at predetermined intervals perpendicular to the traveling direction of the pressurized paper 1, the adhesive is pre-dried in a drying device 9, and then wound onto a circular drum 5 as it is.

このようにして円形ドラム５の外周壁へ所定厚さ巻き取
つたならばこれを円形ドラムから取外し、この取外した
筒状積層物を軸方向に三等分に分割した後、平盤状にし
てから、加圧して接着剤部分で夫々接着し然る後各分割
部分を夫々引き伸すと、ハニカムコア２７ができる。前
記においては、積層時に円筒ドラム５を用いるので、積
層物の最内部と最外部とでは接着剤の塗布位置にずれを
生じるが隣接紙間では厚さに基づく周長差だけのずれで
あつて、実用上支障はない。図中６は転写ロール、Ｔは
接着剤供給ロール、８は接着剤槽、９はロール状の帯状
加工紙である。この発明の実施に際し、円形ドラム又は
外形巻枠の周長は第４図および第５図のように、接着剤
線のピッチＰに対し、ｎｐ＋星Ｐ（但しｎは整数）とす
る必要がある。このような長さにすれば、隣接接着剤線
が常時？Ｐの所にあるようになつて所期のハニカムコア
ができる。次に第６図および第７図の実施例について説
明する。Once a predetermined thickness has been wound around the outer circumferential wall of the circular drum 5, it is removed from the circular drum, the removed cylindrical laminate is divided into thirds in the axial direction, and then flattened. Then, the honeycomb core 27 is formed by applying pressure and adhering each divided portion with the adhesive portion, and then stretching each divided portion. In the above method, since the cylindrical drum 5 is used during lamination, there is a deviation in the adhesive application position between the innermost and outermost parts of the laminate, but between adjacent sheets, the deviation is only due to the difference in circumferential length based on the thickness. , there is no practical problem. In the figure, 6 is a transfer roll, T is an adhesive supply roll, 8 is an adhesive tank, and 9 is a rolled strip of processed paper. When carrying out this invention, the circumference of the circular drum or external winding frame must be np + star P (where n is an integer) with respect to the pitch P of the adhesive line, as shown in Figures 4 and 5. . If you make it to such a length, will the adjacent adhesive line always be there? The desired honeycomb core will be formed as shown at P. Next, the embodiments shown in FIGS. 6 and 7 will be described.

この実施例は前記実施例の円形ドラムに代えて巻枠１０
を用いたものである。この巻枠１０は、回転軸１１へ所
定間隔で嵌着した二つのボス１２に四本のアーム１３，
１３ａ，１３ｂ，１３ｃを夫々等間隔かつ放射状に設け
、各対向アームの先端へ支持杆１４の両端を、半径方向
へ摺動自在に取付ける。前記支持杆１４の両端に脚杆１
５の先端を固着し、脚杆１５の基端側は前記アーム１３
の先端に固着したクツシヨン筒１６内へ挿入し、クツシ
ヨン筒１６内に収容したスプリング１７を脚杆１５の鍔
１８と、クツシヨン筒１６の端板１６ａとの間に介装し
て脚杆１５へ常時矢示１９方向へ働く弾力を付与したも
のである。また支持杆１４の移動軌跡に接するように押
えロール２０が１個又は複数個架設してあり、押えロー
ル２０の軸受２１は受枠２２内へ摺動自在に嵌挿され、
スプリング２３によつて常時矢示２４の方向へ加圧され
ると共に、ストツパ一２５によつて脱抜を阻止され、ス
トツパーボルト２６によつて後退位置を規制されている
。従つてストツパーボルト２６を調節することによつて
押えロール２０の軸２７と、回転軸１１との距離を正確
に設定することができる。前記に｝いて、回転軸１１を
第６図中矢示２８の方向へ回転し、支持杆１４の外周へ
帯状加工紙１を巻きつけると、押えロール帯状加工紙１
の外面に当接しつつ転動し、その軸受はストツパ一２５
とストツパーボルト２６との間を摺動する。This embodiment has a winding frame 10 instead of the circular drum of the previous embodiment.
It uses This winding frame 10 consists of two bosses 12 fitted onto a rotating shaft 11 at predetermined intervals, four arms 13,
13a, 13b, and 13c are provided radially at equal intervals, and both ends of the support rod 14 are attached to the tip of each opposing arm so as to be slidable in the radial direction. Leg rods 1 are provided at both ends of the support rod 14.
5 is fixed, and the base end side of the leg rod 15 is attached to the arm 13.
The spring 17 housed in the cushion tube 16 is inserted between the collar 18 of the leg rod 15 and the end plate 16a of the cushion tube 16, and the spring 17 is inserted into the cushion tube 16 fixed to the tip of the cushion tube 16. It has elasticity that always acts in the direction of arrow 19. Further, one or more presser rolls 20 are installed so as to be in contact with the movement locus of the support rod 14, and the bearings 21 of the presser rolls 20 are slidably inserted into the receiving frame 22.
It is constantly pressurized in the direction of arrow 24 by the spring 23, is prevented from coming off by the stopper 25, and is regulated from the retreating position by the stopper bolt 26. Therefore, by adjusting the stopper bolt 26, the distance between the shaft 27 of the presser roll 20 and the rotating shaft 11 can be set accurately. As described above, when the rotary shaft 11 is rotated in the direction of arrow 28 in FIG.
The bearing rotates while contacting the outer surface of the stopper 25.
and the stopper bolt 26.

然し乍ら、支持杆１４の先端部が対向する位置に来た場
合には、ストツパーボルトによつて最大退避位置にある
如くなつている為に、加工紙１の巻き込みが進み、その
厚さが増大するにつれて、支持杆１４の脚杆１５は回転
軸側へ加圧される。理論上、回転軸の一回転に対し脚杆
１５は加工紙の厚さ分だけ回転軸側へ移動することにな
る。そこで加工紙の巻込み厚さが所望の積層厚さになつ
たならば、これを巻枠から取外し、各脚杆当接部で切断
すれば、４個の平板状積層物ができる。従つてこの平板
状積層物を加圧し、接着剤部分を接着した後引伸せばハ
ニカムコアができる。前記実施例に卦いて、巻枠の支持
杆間隔を所望のものとすれば、所望の・・ニカム幅のハ
ニカムコアを製造することができる。従つて巻枠を大き
くすれば、理論土必要とする幅のハニカムコアを製造す
ることが可能である。前記実施例においては、スプリン
グ１７によつて脚杆が自動的、かつ正確に摺動できるよ
うにしたが、要は回転軸の一回転毎に支持杆を加圧紙の
厚さ宛摺動させればよいので、スプリングに限定される
ことなく、ウオームとウオームホイール又はラツクとピ
ニオンその他の伝導手段によつて支持杆を強制移動させ
ることもできる。However, when the tips of the support rods 14 come to the opposing positions, the stopper bolts make it appear as if they are at the maximum retracted position, so the processed paper 1 is further rolled in and its thickness increases. As this occurs, the leg rod 15 of the support rod 14 is pressurized toward the rotating shaft side. Theoretically, the leg rod 15 will move toward the rotating shaft by the thickness of the processed paper per rotation of the rotating shaft. When the rolled-up thickness of processed paper reaches the desired lamination thickness, it is removed from the winding frame and cut at the contact portions of the respective leg rods, resulting in four flat plate-like laminated products. Therefore, a honeycomb core can be obtained by applying pressure to this flat laminate, bonding the adhesive portion, and then stretching it. In addition to the above embodiments, if the spacing between the support rods of the winding frame is set to a desired value, a honeycomb core having a desired width can be manufactured. Therefore, by increasing the size of the winding frame, it is possible to manufacture a honeycomb core with the width required for the theoretical soil. In the embodiment described above, the spring 17 allows the leg rod to slide automatically and accurately, but the point is that the support rod is slid by the thickness of the pressurized paper for each rotation of the rotating shaft. Therefore, the support rod is not limited to the spring, and the support rod may be forcibly moved by a worm and a worm wheel, a rack and pinion, or other transmission means.

また前記実施例に訃いては押えロールを加工紙側へ移動
可能としたが、その具体的構造に限定を受けるものでは
ない。尚円形ドラムに巻き取る場合には、接着剤は予備
乾燥し、巻き取時に接着しないように配慮する必要があ
るが、巻枠の場合には、接着剤を予備乾燥しても、しな
くてもよいことになる。即ちこの発明によれば、連続し
て供給される帯状材料にその進行方向と直角に接着剤を
一定長さの線状で、かつ一定間隔に塗布し、前記接着剤
を未乾燥又は予備乾燥した後円形又は角形の巻取部材に
巻取り、所定の厚さになつたならば、これを巻取部材か
ら取外し、軸方向と平行に切断した後、要すれば接着し
、引伸して・・ニカムコアを形成したので、ハニカムコ
アの幅に対する制約が大幅に緩和され、品質均等な制品
を多量生産し得る効果がある。然して巻取部材として角
形の巻枠を用いれば、積層巻取物は平面を有する多角筒
となり、これを角隅部毎に軸方向に切断すれば、切屑を
生じることなく、平板状の積層物を得る効果がある。よ
つて比較的腰の弱い材料でも容易に・・ニカムコアとす
ることができる。Further, in the above embodiment, the presser roll is movable toward the processed paper, but there is no limitation to its specific structure. When winding onto a circular drum, it is necessary to pre-dry the adhesive and take care to prevent it from adhering during winding, but in the case of a winding frame, even if the adhesive is pre-dried, it is not necessary. It will also be a good thing. That is, according to the present invention, adhesive is applied in a line of a certain length and at regular intervals to a continuously supplied strip material at right angles to the direction of movement of the material, and the adhesive is undried or pre-dried. It is then wound onto a circular or square winding member, and when it reaches the desired thickness, it is removed from the winding member, cut parallel to the axial direction, glued if necessary, and stretched. , the restrictions on the width of the honeycomb core are significantly relaxed, and products of uniform quality can be mass-produced. However, if a rectangular winding frame is used as the winding member, the laminated roll will become a polygonal cylinder with a flat surface, and if this is cut in the axial direction at each corner, a flat laminate will be produced without producing chips. It has the effect of obtaining Therefore, even relatively stiff materials can be easily made into nicum core.

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

第１図はこの発明の実施例の正面図、第２図は同じく平
面図、第３図は同じく製品の一部斜視図、第４図は同じ
く巻枠を使用する場合の接着剤のピツチを表わす説明図
、第５図は同じく円形ドラムを使用する場合の接着剤の
ピツチを表わす説明図、第６図は同他の実施例の巻枠の
側面図、第７図は同じく一部を切断した正面図、第８図
は同じく押えロールの平面図、第９図は同じく正面図で
ある。 １・・・帯状加工紙、２・・・塗布ロール、４・・・接
着剤、５・・・円形ドラム、９・・・乾燥装置、１０・
・・巻枠、１１・・・回転軸、１３，１３ａ，１３ｂ，
１３ｃ・・・アーム、１４・・・支持杆、１５・・・脚
杆、１７・・・スプリング、２５・・・ストツパ一 ２６・・・ストツパーボ ルト。Fig. 1 is a front view of an embodiment of the invention, Fig. 2 is a plan view, Fig. 3 is a partial perspective view of the product, and Fig. 4 shows the pitch of adhesive when using a winding frame. FIG. 5 is an explanatory diagram showing the adhesive pitch when a circular drum is used, FIG. 6 is a side view of the winding frame of another embodiment, and FIG. 7 is a partially cut away diagram. FIG. 8 is a plan view of the presser roll, and FIG. 9 is a front view of the presser roll. DESCRIPTION OF SYMBOLS 1... Band-shaped processed paper, 2... Coating roll, 4... Adhesive, 5... Circular drum, 9... Drying device, 10...
... Winding frame, 11... Rotating shaft, 13, 13a, 13b,
13c...Arm, 14...Support rod, 15...Leg rod, 17...Spring, 25...Stopper 26...Stopper bolt.

Claims (1)

【特許請求の範囲】 １ 連続して供給される一枚の帯状材料に、その進行方
向と直角に接着剤を一定長さの線状で、かつ一定間隔に
塗布し、前記接着剤を未乾燥又は予備乾燥した後、前記
帯状材料を周長が前記接着剤の塗布ピッチの整数倍＋１
／２ピッチである円形又は角形の巻取部材に巻取り、所
定の巻取厚さになつたならば、これを巻取部材から外し
、これを所定位置で軸方向に切断して得た平らな積層材
を引伸すことを特徴としたハニカムコアの製造法。 ２ 巻取部材への巻取は円形ドラム又は角形巻枠に巻取
ることにより行う特許請求の範囲第１項記載のハニカム
コアの製造法。 ３ 巻枠への巻取は、帯状材料の周長を終始不変とする
ようにした特許請求の範囲第２項記載のハニカムコアの
製造法。[Scope of Claims] 1. An adhesive is applied in a line of a certain length and at regular intervals to a continuously supplied strip of material at right angles to the direction of movement of the material, and the adhesive is applied undried. Or, after pre-drying, the belt-shaped material has a circumferential length that is an integral multiple of the adhesive application pitch + 1.
Wind it onto a circular or square winding member with a pitch of /2, and when the desired winding thickness is reached, remove it from the winding member and cut it in the axial direction at a predetermined position to obtain a flat sheet. A manufacturing method for honeycomb cores characterized by stretching laminated materials. 2. The method for manufacturing a honeycomb core according to claim 1, wherein the winding on the winding member is performed by winding on a circular drum or a rectangular winding frame. 3. The method for manufacturing a honeycomb core according to claim 2, wherein the circumferential length of the strip material remains unchanged throughout the winding onto the winding frame.