JPS59386B2 - Manufacturing method for deep drawing molded products - Google Patents
Manufacturing method for deep drawing molded productsInfo
- Publication number
- JPS59386B2 JPS59386B2 JP51088556A JP8855676A JPS59386B2 JP S59386 B2 JPS59386 B2 JP S59386B2 JP 51088556 A JP51088556 A JP 51088556A JP 8855676 A JP8855676 A JP 8855676A JP S59386 B2 JPS59386 B2 JP S59386B2
- Authority
- JP
- Japan
- Prior art keywords
- notch
- mat
- molded
- hard fiberboard
- fiberboard
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Dry Formation Of Fiberboard And The Like (AREA)
Description
【発明の詳細な説明】
本発明は硬質繊維板製の深絞り成型品の製造方法に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a deep-drawn product made of hard fiberboard.
従来、繊維板を加熱加圧して成型加工することは行なわ
れていたが、僅かな変形の成型に限られ、深絞り成型は
できなかった。Conventionally, fiberboards have been molded by heating and pressurizing, but this is limited to molding with slight deformation, and deep drawing molding is not possible.
又熱圧により繊維板化する繊維のマットを加熱加圧成型
する方法も行なわれているが、一枚のマットからフラン
ジ付きの絞り成型品を製作する場合、成型品のつけ根部
と先端部にかかる圧力と繊維の流動性との関係から絞り
加工に限度があり、成型時にクラック、皺れ等が生じ、
満足のゆく深絞り製品を得ることが困難であった。There is also a method of heating and press-molding a fiber mat that is made into a fiberboard by heat-pressing, but when producing a drawn-molded product with flanges from a single mat, the base and tip of the molded product are Due to the relationship between the pressure applied and the fluidity of the fibers, there is a limit to the drawing process, which may cause cracks, wrinkles, etc. during molding.
It has been difficult to obtain satisfactory deep-drawn products.
本発明は、上記のように、それぞれ単独では深絞り成型
困難な硬質繊維板と繊維のマットを併用するもので、硬
質繊維板の成型する個所に、切欠き部を設けて切欠き部
の内周面を凹凸面に形成し、切欠き部の周縁部を含水軟
化させて、熱硬化性樹脂を含んだ繊維のマットを重合し
、硬質繊維板と共にマットを熱圧成型加工して、平板の
フランジ部と成型部のつけ根部を硬質繊維板で、絞り成
型部をマットで形成すると共に、両者を接合一体化して
形成する深絞り成型品の製造方法に係り、深絞り成型が
極めて簡単容易にでき、不良品の発生が少く効率よく深
絞り成型品を生産することを目的とする。As described above, the present invention uses a hard fiberboard and a fiber mat together, which are difficult to deep draw when used alone.The hard fiberboard is provided with a notch at the part where it is to be molded, and the interior of the notch is The peripheral surface is formed into an uneven surface, the peripheral edge of the notch is softened with water, a fiber mat containing a thermosetting resin is polymerized, and the mat is heat-press molded together with a hard fiberboard to form a flat plate. The flange part and the base of the molded part are made of hard fiberboard, the drawn part is made of matte, and the two are joined and integrated to form a deep drawn product.Deep drawing is extremely simple and easy. The purpose is to efficiently produce deep drawing molded products with fewer defective products.
本発明の方法を詳述すると、通常の方法で製造された硬
質繊維板を所定の形状寸法に切断すると共に、深絞り成
型する個所の中央部に切欠き部を設けて切欠き部の内周
面を凹凸面に形成する。To explain the method of the present invention in detail, a hard fiberboard manufactured by a conventional method is cut into predetermined shapes and dimensions, and a notch is provided in the center of the area to be deep drawn. Form the surface into an uneven surface.
この工程は打抜き方法によるのがよい。This step is preferably performed by a punching method.
なお、切欠き部の形状は絞り口の形状と相似した形状に
するのが好ましい。Note that it is preferable that the shape of the notch is similar to the shape of the aperture.
次に、この硬質繊維板の切欠き部の周縁部に水分を40
%以下含浸させて切欠き部の周縁部を充分柔かくする。Next, add 40% moisture to the periphery of the notch in this hard fiberboard.
% or less to make the peripheral edge of the notch sufficiently soft.
含水させる切欠き周縁部の巾は絞り深さの1/3乃至1
/2程度が最適である。The width of the periphery of the notch to absorb water is 1/3 to 1 of the drawing depth.
/2 is optimal.
次に、この水分で軟化した硬質繊維板の成型する個所に
、次工程のプレス成型加工により硬質繊維板とほぼ同厚
の繊維板化する熱硬化性樹脂を含んだ繊維の絞る形状、
深さに必要な形状、寸法のマットを硬質繊維板の切欠き
部を覆って載置重合する。Next, the shape of fibers containing a thermosetting resin that is made into a fiberboard with approximately the same thickness as the hard fiberboard by the press molding process in the next step is squeezed into the molded part of the hard fiberboard that has been softened by moisture.
A mat having the shape and size required for the depth is placed over the notch of the hard fiberboard and polymerized.
このマットは、例えば、木質パルプ繊維70%と木質パ
ルプ繊維より単繊維ひっばり強度の強い繊維10%及び
熱硬化性樹脂20%からなる木質パルプ繊維を主体とし
たマット、又は木質パルプ繊維より単繊維ひっばり強度
の強い繊維と熱硬化性樹脂或いはこれ等と木質パルプ繊
維からなる木質パルプ繊維より単繊維ひっばり強度の強
い繊維を主体としたマットを使用する。This mat is, for example, a mat mainly composed of wood pulp fibers consisting of 70% wood pulp fibers, 10% fibers with higher tensile strength than wood pulp fibers, and 20% thermosetting resin, or A mat mainly composed of fibers with high tensile strength and thermosetting resin, or single fibers with high tensile strength rather than wood pulp fibers made of these and wood pulp fibers is used.
なお、各繊維及び熱硬化性樹脂の配合比率は、絞りの形
状、深さ等によって適宜に選択する。The blending ratio of each fiber and thermosetting resin is appropriately selected depending on the shape, depth, etc. of the aperture.
熱硬化性樹脂は最低2%を要する。Thermosetting resin requires a minimum of 2%.
次に、上記のマットを載置した硬質繊維板をプレスの雌
型と雄型間に挿入し、温度130〜150°C1圧力1
0〜30kg/cIft、時間1〜3分加熱加圧成型加
工して、硬質繊維板の切欠き部の周縁部で形成された絞
り成型のつけ根部に、繊維板化したマットで形成された
絞り成型の底付き筒形状の先端部が接合一体化した深絞
り成型品を製造する。Next, the hard fiberboard on which the above mat was placed was inserted between the female mold and the male mold of the press, and the temperature was 130 to 150°C and the pressure was 1.
0 to 30 kg/cIft, heat and pressure molding for 1 to 3 minutes, and a diaphragm formed from a fiberboard mat is placed at the base of the diaphragm formed at the periphery of the notch of the hard fiberboard. A deep-drawn molded product is manufactured in which the tip of the bottomed cylindrical shape is integrally joined.
本発明の方法は、上記のように、絞り成型しにくい硬質
繊維板の成型しようとする個所に切欠き部を設けて含水
により軟化させ、その上に絞り成型し易い熱硬化性樹脂
を含んだ繊維のマットを重合して熱圧プレス加工をし、
硬質繊維板の軟化した成型容易な切欠き周縁部で成型部
のつけ根部を形成し、その先に繊維板化したマットで形
成された成型部の先端部を接合一体化した絞り成型をす
るから、可成り深い深絞り成型品も容易にできる。As described above, the method of the present invention is to provide a notch in the part of the hard fiberboard that is difficult to draw and mold, soften it with water, and then add a thermosetting resin that is easy to draw and mold. The fiber mat is polymerized and heat-pressed,
The base of the molded part is formed using the softened notch edge of the hard fiberboard, which is easy to mold, and then the tip of the molded part, which is made of fiberboard mat, is joined and integrated by drawing molding. , fairly deep deep drawing molded products can be easily produced.
また、硬質繊維板とマットの接合部は、成型部のつけ根
と先端間の周壁部分に設けられるので、成型部の大きく
彎曲するつけ根に設けられる場合より強固に接合され、
更に、成型部のつけ根部と先端部との接合部は1両者の
材質が共に繊維を主体としているので繊維が絡みあい、
マットに含まれた熱硬化性樹脂の接着作用と共に強固に
接合され、かつ他の部分より質が緻密で強固になる。In addition, since the joint between the hard fiberboard and the mat is provided on the peripheral wall between the base and the tip of the molded part, the joint is more secure than when it is provided at the greatly curved base of the molded part.
Furthermore, the joint between the base and tip of the molded part is made of fibers, so the fibers become entangled.
Together with the adhesive action of the thermosetting resin contained in the mat, it is firmly joined, and the quality is denser and stronger than other parts.
更に、硬質繊維板の成型する部分に含水させて軟化させ
る場合に、切欠き部を設けて切欠き部の内周面を凹凸面
に形成しているので含水させ易い。Furthermore, when the part of the hard fiberboard to be molded is soaked in water to soften it, the notch is provided and the inner circumferential surface of the cutout is formed into an uneven surface, making it easy to soak in water.
また、マットとの衝合接合端面となる硬質繊維板の切欠
き部の内周面は凹凸面に形成しであるので、熱圧成型時
に、マットの繊維の流動性により硬質繊維板の切欠き部
局面の凹部内に繊維が流動充填し、硬質繊維板とマット
の衝合接合端は噛合い状態になって接合されるので、硬
質繊維板の成型つけ根部と繊維板化したマットの底付き
筒形状の絞り成型先端部が一層強固に接合一体化した深
絞り成型品が得られる。In addition, the inner circumferential surface of the notch in the hard fiberboard, which will be the end surface for abutment and joining with the mat, is formed into an uneven surface. The fibers flow and fill into the concave part of the part surface, and the abutting joint ends of the hard fiberboard and mat are joined in an interlocking state, so that the molded base of the hard fiberboard and the bottom of the mat made of fiberboard are attached. A deep drawn product is obtained in which the cylindrical drawing tip is more firmly joined and integrated.
実施例 1 (第1図乃至第4図参照)
2.5m厚のハードボードの原板から打抜き加工により
所定の形状、寸法の成型用のハードボード1を打抜くと
同時に、打抜きによりハードボード1の成型する部分に
、巾5m、長さ3007rrInの切欠き部2を形成す
る。Example 1 (See Figures 1 to 4) At the same time, a hardboard 1 for molding with a predetermined shape and dimensions is punched out from a 2.5 m thick hardboard original plate. A notch 2 with a width of 5 m and a length of 3007 rrIn is formed in the part to be molded.
この切欠き部2を設けたハードボード1を60℃以上の
熱水に1分半漬けて水分を約25%含有させる。The hardboard 1 provided with the cutout portion 2 is immersed in hot water of 60° C. or higher for 1.5 minutes to contain about 25% water.
次に、木質パルプ繊維70%、フェノール樹脂20%、
木質パルプ繊維より単繊維ひっばり強度の強い麻繊維1
0%からなる厚さ15m、中170m、長さ570mの
マット3を、含水させたハードボード1上に切欠き部2
を覆って載置する。Next, 70% wood pulp fiber, 20% phenolic resin,
Hemp fiber 1 has stronger monofilament strength than wood pulp fiber
A mat 3 with a thickness of 15 m, a medium size of 170 m, and a length of 570 m made of 0.0% is placed on a hard board 1 soaked in water with a notch 2.
Cover and place.
次に、このマットを載置したハードボード1を絞り成型
用プレスに掛け2000C,20ky/ctlのプレス
条件で1分30秒プレスして、ハードボードで形成され
た成型つけ根部5と硬質化したマットで形成された成型
先端部6が接合一体化した、第3図、第4図に示す、巾
100m、長さ4.0(h/vfl、深さ100叫の長
方形絞り成型部4を有する深絞り成型品を製造した。Next, the hardboard 1 on which this mat was placed was placed in a drawing press and pressed for 1 minute and 30 seconds under press conditions of 2000C and 20ky/ctl to harden the molded base 5 formed of the hardboard. It has a rectangular drawing molded part 4 with a width of 100 m, a length of 4.0 m (h/vfl), and a depth of 100 m, as shown in Figs. A deep drawing molded product was manufactured.
この絞り成型部4においては、ハードボードとマットは
成型部の周壁部分で重合接触して接合しており、その重
合接触部7の巾は約407MLであった。In this draw molding section 4, the hardboard and the mat were joined by overlapping contact at the peripheral wall portion of the molding section, and the width of the overlapping contact section 7 was about 407 ML.
実施例 2(第5図乃至第7図参照)
前例と同様に打抜き加工により、所定の形状、寸法に形
成された厚さ2mmのハードボード11の成型する部分
に、凹凸量10〜15rrrIrLの鋸歯状の周辺を有
する直径140mの切欠き部12を形成する。Embodiment 2 (See FIGS. 5 to 7) As in the previous example, a sawtooth with an uneven amount of 10 to 15 rrrIrL was formed on the molded part of a 2 mm thick hardboard 11 formed into a predetermined shape and size by punching. A notch 12 with a diameter of 140 m and a circumference of 140 m is formed.
このハードボード11を80℃の熱水に1分間漬けて水
分を約20%含有させる。This hardboard 11 is soaked in hot water at 80° C. for 1 minute to make it contain about 20% water.
次に、この含水ハードボード11に、合成繊維75%、
尿素樹脂25%からなる厚さ13m、直径320mのマ
ット13を切欠き部12を覆って載置する。Next, on this water-containing hardboard 11, 75% synthetic fiber,
A mat 13 made of 25% urea resin and having a thickness of 13 m and a diameter of 320 m is placed to cover the notch 12.
このマットを載置したハードボード11を絞り成型用プ
レスに掛け、170°C215kg/C1ftのプレス
条件で1分間プレスして、ハードボードで形成された成
型つけ根部15と硬質化したマットで形成された成型先
端部16が接合一体化した、第7図に示す直径2001
Mt、深さ70wILの円形絞り成型部14を有する深
絞り成型品を製造した。The hardboard 11 on which this mat is placed is placed in a drawing press and pressed for 1 minute at 170°C and 215kg/C1ft to form a molded base 15 made of hardboard and a hardened mat. The diameter 2001 shown in FIG.
A deep drawn product having a circular drawn part 14 with Mt and depth of 70 wIL was manufactured.
この絞り成型部14においては、ハードボードとマット
は成型部の周壁部分で重合接触して接合しており、その
重合接触部17の巾は約2.5mであった。In this draw molding section 14, the hardboard and the mat were joined by overlapping contact at the peripheral wall portion of the molding section, and the width of the overlapping contact section 17 was about 2.5 m.
なお、上記両実施例における図示成型品は、成型プレス
する際にバードボード側から雄型でプレスした場合のも
のを示しているが、マット側から雄型でプレスしてもよ
い。The molded products shown in the figures in both of the above embodiments are those in which the molded products were pressed from the birdboard side with a male mold when molding and pressing, but they may also be pressed with a male mold from the mat side.
第1図は第1実施例における成型用バードボードの平面
図、第2図は同マットを載置した成型用バードボードの
拡大縦断側面図、第3図は同成型品の縦断正面図、第4
図は同成型品の一部破断側面図、第5図は第2実施例に
おける成型用バードボードの平面図、第6図は同マット
を載置した成型用バードボードの拡大縦断面図、第7図
は同成型品の一部破断側面図。
1.11・・・・・・成型用バードボード、2,12・
・・・・・切欠き部、3,13・・・・・・マット、4
,14・・・・・・絞り成型部、5,15・・・・・・
成型つけ根部、6,16・・・・・・成型先端部、7.
17・・・・・・重合接触部。Fig. 1 is a plan view of the molding bird board according to the first embodiment, Fig. 2 is an enlarged vertical side view of the molding bird board with the same mat placed on it, and Fig. 3 is a longitudinal sectional front view of the molded product. 4
The figure is a partially cutaway side view of the same molded product, Figure 5 is a plan view of the molding bird board in the second embodiment, Figure 6 is an enlarged vertical sectional view of the molding bird board with the same mat placed on it, Figure 7 is a partially cutaway side view of the same molded product. 1.11... Bird board for molding, 2,12.
...Notch, 3, 13...Matt, 4
, 14... Drawing forming section, 5, 15...
Molded root portion, 6, 16... Molded tip portion, 7.
17...Polymerization contact part.
Claims (1)
き部の内周面を凹凸面に形成し、切欠き部の周縁部に含
水させ、この硬質繊維板に、熱硬化性樹脂を含んだ繊維
のマットを、切欠き部を覆って載置し、マットを載置し
た硬質繊維板を加熱加圧成型し、硬質繊維板の切欠き部
の周縁部で形成したつけ根部に、繊維板化したマットで
形成した先端部を接合一体化して絞り成型部を形成する
ことを特徴とする深絞り成型品の製造方法。1 A notch is provided in the part of the hard fiberboard to be molded, the inner peripheral surface of the notch is formed into an uneven surface, the peripheral edge of the notch is impregnated with water, and a thermosetting resin is applied to the hard fiberboard. A mat containing fibers is placed to cover the notch, and the hard fiberboard on which the mat is placed is heated and press-molded, and the fibers are placed at the base formed by the periphery of the notch in the hard fiberboard. A method for manufacturing a deep-drawn molded product, characterized in that a drawing-molded part is formed by joining and integrating the tip portions formed from plated mats.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP51088556A JPS59386B2 (en) | 1976-07-24 | 1976-07-24 | Manufacturing method for deep drawing molded products |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP51088556A JPS59386B2 (en) | 1976-07-24 | 1976-07-24 | Manufacturing method for deep drawing molded products |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5313682A JPS5313682A (en) | 1978-02-07 |
JPS59386B2 true JPS59386B2 (en) | 1984-01-06 |
Family
ID=13946132
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP51088556A Expired JPS59386B2 (en) | 1976-07-24 | 1976-07-24 | Manufacturing method for deep drawing molded products |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59386B2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60172503A (en) * | 1984-02-20 | 1985-09-06 | Kasai Kogyo Co Ltd | Press molding of wood fiber board |
JPH0643163Y2 (en) * | 1990-09-29 | 1994-11-09 | 協業組合眉山コレクション | Decorative board using natural leather |
FR2695859B1 (en) * | 1992-09-22 | 1994-11-18 | Reydel J | Method for manufacturing a multilayer object by molding, object obtained and application to the manufacture of dashboards and / or trim elements of a vehicle body. |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5231267A (en) * | 1975-09-04 | 1977-03-09 | Mitsubishi Heavy Ind Ltd | Hinge fitted with automatic sel-locking mechanism |
-
1976
- 1976-07-24 JP JP51088556A patent/JPS59386B2/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5231267A (en) * | 1975-09-04 | 1977-03-09 | Mitsubishi Heavy Ind Ltd | Hinge fitted with automatic sel-locking mechanism |
Also Published As
Publication number | Publication date |
---|---|
JPS5313682A (en) | 1978-02-07 |
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