JPS5832556B2 - Method for manufacturing fibrous diaphragm - Google Patents
Method for manufacturing fibrous diaphragmInfo
- Publication number
- JPS5832556B2 JPS5832556B2 JP604677A JP604677A JPS5832556B2 JP S5832556 B2 JPS5832556 B2 JP S5832556B2 JP 604677 A JP604677 A JP 604677A JP 604677 A JP604677 A JP 604677A JP S5832556 B2 JPS5832556 B2 JP S5832556B2
- Authority
- JP
- Japan
- Prior art keywords
- papermaking
- water
- mold
- diaphragm
- suction
- 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
- Diaphragms For Electromechanical Transducers (AREA)
- Paper (AREA)
Description
【発明の詳細な説明】
この発明は、紙繊維組織体の内在的性質を巧みに利用し
て、密度を異にする層を明瞭に形成した繊維質振動板を
得る全く新しい抄造方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a completely new method for producing a fibrous diaphragm in which layers with different densities are clearly formed by skillfully utilizing the inherent properties of paper fiber tissue.
抄造装置を第２図に示す。The papermaking equipment is shown in Figure 2.
水流を通す透孔９を全面に穿った截頭円錐形抄き型５を
、漏斗状吸引器４に載置し、吸引器４はバイブロをもっ
て吸引源７に連結すると共に、繊維を混入浮遊せしめた
抄き水２を満したタンク１内に沈下および、引上げし得
るごとく上下動なし得る。A truncated conical mold 5 with holes 9 for passing water flow therethrough is placed on a funnel-shaped suction device 4, and the suction device 4 is connected to a suction source 7 with a vibro, and the fibers are mixed and suspended. It can move up and down so that it can sink into the tank 1 filled with water 2 and be pulled up.
まず、抄き型５を載置した吸引器４を下方へ沈下せしめ
て抄き型５を抄き水２中に沈没せしめると共に、吸引源
７より吸引器４を通じて吸引圧力を第３図のａ−＋ｂ（
約Ｏ→２０ＣｒｆＬＨｇ ）に増加しつつ抄き型５に約
２ＯＣＴＬＨｇの吸引力を印加するにの引加圧力によっ
て、抄き水２は抄き型５の穴９を通って、吸引器４内に
吸引され、吸引源Ｉ内を通って排出口１０より抄きタン
ク１へ環元するゎ斯して、抄き水中に浮遊していた繊維
は、抄き型５の穴９を通って流れる水の量に比例した量
の堆積■を生ずる。First, the suction device 4 on which the papermaking mold 5 is mounted is lowered to submerge the papermaking mold 5 into the water for making paper 2, and at the same time, the suction pressure is applied from the suction source 7 through the suction device 4 as shown in a of FIG. −+b(
By applying a suction force of about 2OCTLHg to the papermaking die 5 while increasing the pressure from about 0 to 20CrfLHg), the papermaking water 2 passes through the holes 9 of the papermaking die 5 and enters the suction device 4. The fibers are sucked, pass through the suction source I, and return to the papermaking tank 1 through the discharge port 10.Thus, the fibers suspended in the papermaking water are removed from the water flowing through the holes 9 of the papermaking mold 5. It produces an amount of deposition (■) proportional to the amount of .
すなわち繊維の堆積量は抄き型５０抄き水２の保持時間
と、吸引力によって制御できる。In other words, the amount of fiber deposited can be controlled by the retention time of the papermaking mold 50 and the water 2 and the suction force.
一定厚さの堆積■を生じたとき、抄き型５を抄き水中か
ら引上げると、吸引圧力は、第３図のｂ−）ｃ（約２０
ｃｒｒＬＨｇ→７ｃｒＩＬＨｇ）へ減圧しつつ堆積■と
抄き型５０間に約７ＣＩＩＬＨｇの吸引圧力が印加する
。When a certain thickness of deposit ① is formed, when the papermaking mold 5 is lifted out of the water, the suction pressure will be approximately 20
A suction pressure of approximately 7 CIILHg is applied between the depositor 50 and the paper mold 50 while reducing the pressure from crrLHg to 7crILHg).
この印加圧力によって、堆積■中に含まれていた抄き水
は、抄き型５の穴９を通って、吸引脱水され、適宜時間
保持すると、含水率が約５０％の繊維組織体系を抄き型
５０面上に押圧されて形成する。Due to this applied pressure, the papermaking water contained in the pile (1) passes through the holes 9 of the papermaking mold 5 and is dehydrated by suction, and when held for an appropriate time, a fibrous tissue system with a water content of approximately 50% is produced. It is formed by being pressed onto the mold 50 surface.
この組織体系■′は、繊維単体間の接点において若干の
水素結合が生じて半乾燥の紙質を形成するに至っており
、もはや、その後の工程で抄き水２を再び含浸したり、
また繊維のすきまから水分を吸引脱水してもその組織体
系■′がくずれることがない程度に強い保形力を有する
。In this structure system ■', some hydrogen bonds occur at the contact points between individual fibers, forming a semi-dry paper quality, and it is no longer necessary to impregnate the paper with the water 2 again in the subsequent process.
In addition, it has a strong shape-retaining ability to the extent that even if water is sucked and dehydrated from the gaps between the fibers, the tissue structure (1) will not collapse.
か（して、第１の繊維組織体Ｉ′を載置したままの抄き
型５を再び抄き水２中に沈没させて、吸引圧力は、第３
図のｃ−＋ｄ（約７ｃｍＨｇ −）３５ＣｒｒＬＨｇ
）に増加しつつ第１の繊維組織体と抄き型５の間に約３
５ＣｒＩＬＨｇの吸引力を印加する。Then, the papermaking mold 5 with the first fibrous tissue I' placed thereon is again submerged in the papermaking water 2, and the suction pressure is adjusted to the third level.
Figure c-+d (approx. 7cmHg -) 35CrrLHg
) while increasing the distance between the first fiber tissue body and the papermaking mold 5 by about 3
Apply a suction force of 5CrILHg.
この際の吸引力は、前記堆積Ｉの際より大きいｄ点（約
３５ＣｒｒＬＨｇ ）の吸引力を印加する。At this time, a suction force at point d (approximately 35 CrrLHg) is applied, which is larger than that at the time of deposition I.
この印加圧力によって、抄き水２は第１の繊維組織体１
′の繊維間を通って抄き型５の穴９から吸引され流下す
る。Due to this applied pressure, the water 2 is transferred to the first fibrous tissue 1
' is sucked through the holes 9 of the paper mold 5 and flows down.
しかる時、抄き水２中に浮遊していた繊維は、単繊維の
ままで、第１の繊維組織体■′の面上に吸引されて堆積
し、順次繊維は前記と同様に水流の量に比例した量の第
■の堆積■を生ずる。At this time, the fibers suspended in the water 2 are sucked and deposited on the surface of the first fiber organization ■' as single fibers, and the fibers are successively reduced to the same amount of water flow as described above. The amount of the second deposit (■) is produced in proportion to the amount.
一定厚さの堆積■が生じたとき、抄き型５を空中に引き
上げて、吸弓力は、第３図のｄ−＋ｅ（約３５ ｍＨｇ
−＋ ５ Ｃ：ｒｆＬＨｇ ）へ減圧しつつ堆積■と
第１の繊維組織体■更に抄き型５０間に約５ＣｒｒＬＨ
ｇの吸引力を印加する。When a certain thickness of deposit 2 has been formed, the paper mold 5 is lifted into the air, and the suction force is d-+e (approximately 35 mHg) in Figure 3.
- + 5C:rfLHg) while reducing the pressure to 5 CrrLH while depositing ■ and the first fiber tissue body ■ further between the papermaking mold 50.
Apply a suction force of g.
この際、脱水加圧力を、前記、第■の繊維組織体形成の
際より低いｅ点（約５ｃｉＨｇ）を印加する。At this time, the dehydration pressure is applied at point e (approximately 5 ciHg), which is lower than in the case of forming the fibrous tissue in the second step.
この印加圧力によって、堆積■中に含まれていた水は、
第１繊維組織体中に含まれている水と共に抄き型５の穴
９を通って吸引脱水されて、適宜時間保つと、第■の繊
維組織体の密度より小さい密度の第■の繊維組織体■′
を形成する。Due to this applied pressure, the water contained in the sediment is
When the water contained in the first fibrous tissue is suctioned and dehydrated through the holes 9 of the paper mold 5 and kept for an appropriate time, the second fibrous tissue has a density lower than that of the second fibrous tissue. body■′
form.
第１と第■の繊維組織体の境界面は、叙上するごとく、
構成繊維が同一であり、境界面附近の繊維が、水中にお
いてなじみやすくからまりが十分に完成するので繊維間
距離が小さくなり、脱水加圧するとき水素結合を形成し
強力な接着力を有する境界面を完成する。As described above, the interface between the first and the second fiber tissue bodies is,
The constituent fibers are the same, and the fibers near the interface easily become tangled in water, so the distance between the fibers becomes small, and when dehydrating and pressurizing, hydrogen bonds are formed and a strong adhesive force is created at the interface. complete.
この際、第■と第■の繊維組織体系は完全に保形され、
密度が変化することがない。At this time, the fibrous tissue systems of #1 and #2 are completely preserved in shape,
Density never changes.
かくの如くして密度の異なる強い保形力を有する二層の
繊維組織体Ｉ／ 、 ｎ／を形威し得る。In this way, two layers of fiber tissue I/ and n/ having different densities and strong shape-retaining properties can be formed.
同様の方法により第■層の上面に更に任意の密度を有す
る保形力の強い第■層を、強力な境界面を保って＊ト抄
造成形できる。By a similar method, a second layer having a desired density and a strong shape-retaining ability can be further formed on the upper surface of the second layer by paper forming while maintaining a strong boundary surface.
この多層繊維組織体Ｉ／ 、 ■ｔ 、 ｍ／、・・・
・・・を抄き型５の上面に載置したままで吸引器４かも
取り外し、完全に乾燥して後に抄き型５から剥離し、整
形して振動板が完成する。This multilayer fiber tissue I/, ■t, m/,...
... is placed on the upper surface of the papermaking mold 5, the suction device 4 is also removed, and after it is completely dried, it is peeled off from the papermaking mold 5 and shaped to complete the diaphragm.
このように、本願発明は、抄き水２中、および空中にお
ける吸引圧力とその保持時間を適宜に選択することによ
って、所定の密度の層を有し、接合強度の強い明瞭な境
界面を有する振動板を抄造し得る方法である。As described above, the present invention has a layer with a predetermined density and a clear boundary surface with strong bonding strength by appropriately selecting the suction pressure in the draft water 2 and in the air and its holding time. This is a method by which a diaphragm can be made from paper.
実施例として順次密・疎・密と密度の異なる７ミ層の繊
維質振動板の場合、中層が疎であるため振動板全体とし
ての質量が大きくならずスピーカの能率を劣化させるよ
うなことがない。As an example, in the case of a 7-layer fiber diaphragm with different densities: dense, sparse, and dense, the middle layer is sparse, so the mass of the diaphragm as a whole does not increase and the efficiency of the speaker will not deteriorate. do not have.
また、表裏の層が密であるためヤング率を大きく出来て
音圧周波数特性を高域まで伸ばし得る。Furthermore, since the front and back layers are dense, the Young's modulus can be increased and the sound pressure frequency characteristics can be extended to high frequencies.
第６図は実施例の三層繊維質振動板であり、第１、第■
、更に第■層の密度がそれぞれ０．６．０．２．０．６
？／ｃｔｄでその厚さの比が３：５：２になるごとく抄
造しである。FIG. 6 shows a three-layer fibrous diaphragm according to an embodiment, with the first,
, furthermore, the density of the ■th layer is 0.6.0.2.0.6, respectively.
? /ctd and the thickness ratio is 3:5:2.
その振動板の物理定数を第１表に示すように密度はほと
んど変化していな（・が、ヤング率、ヤング率／密度に
おいて優れた振動板が得られる。As shown in Table 1, the physical constants of the diaphragm show that the density hardly changes (.) However, a diaphragm with excellent Young's modulus and Young's modulus/density can be obtained.
第１図は抄き型の裁断図、第２図は抄造装置の裁断図、
第３図は三層繊維質振動板の製造工程図、第４図ａは堆
積■の裁断図、第４図すは第４図ａのＡ部拡大断面図、
第５図ａは堆積Ｈの裁断図、第５図すは第５図ａのＢ部
拡大断面図、第６図ａは堆積■の裁断図、第６図すは第
６図ａのＣ部拡大断面図、第７図ａは三層繊維質振動板
の裁断図、第７図すは第７図ａのＤ部拡大断面図。
１・・・・・・抄きタンク、２・・・・・・抄き水、３
，３′・・・・・・支柱、４・・・・・・吸引器、５・
・・・・・抄き型、６・・・・・・パイプ、７・・・・
・・吸引源、８・・・・・・減圧弁、９・・・・・・抄
き型の穴、１０・・・・・・排出口。Figure 1 is a cutaway diagram of the papermaking mold, Figure 2 is a cutout diagram of the papermaking device,
Fig. 3 is a manufacturing process diagram of a three-layer fibrous diaphragm, Fig. 4 a is a cutaway view of the stack ■, Fig. 4 is an enlarged sectional view of part A of Fig. 4 a,
Figure 5a is a cutaway view of the stack H, Figure 5A is an enlarged cross-sectional view of section B in Figure 5a, Figure 6a is a cutout view of stack II, and Figure 6A is section C of Figure 6a. FIG. 7a is an enlarged sectional view of a three-layer fibrous diaphragm, and FIG. 7 is an enlarged sectional view of section D in FIG. 7a. 1... Sake tank, 2... Sho water, 3
, 3'... Strut, 4... Aspirator, 5.
...paper mold, 6...pipe, 7...
... Suction source, 8 ... Pressure reducing valve, 9 ... Paper-shaped hole, 10 ... Discharge port.
Claims (1)
力を印加しつつ抄き水２中に保持する時間を特定して抄
き型５上に繊維の堆積を生せしめる第一工程と、抄き型
５を空気中において所定の吸引力を特定時間印加して脱
水する第２工程を繰り返して行う多層繊維質振動板の抄
造方法。1. A step in which the papermaking mold 5 is submerged in the papermaking water 2, and the time period for which the papermaking mold 5 is kept in the papermaking water 2 while applying a predetermined absorbing force is specified, and fibers are deposited on the papermaking mold 5. A method for making a multilayer fibrous diaphragm by repeating one step and a second step of dehydrating the paper mold 5 in air by applying a predetermined suction force for a specific period of time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP604677A JPS5832556B2 (en) | 1977-01-21 | 1977-01-21 | Method for manufacturing fibrous diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP604677A JPS5832556B2 (en) | 1977-01-21 | 1977-01-21 | Method for manufacturing fibrous diaphragm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5391725A JPS5391725A (en) | 1978-08-11 |
| JPS5832556B2 true JPS5832556B2 (en) | 1983-07-13 |
Family
ID=11627673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP604677A Expired JPS5832556B2 (en) | 1977-01-21 | 1977-01-21 | Method for manufacturing fibrous diaphragm |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5832556B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63227900A (en) * | 1987-03-11 | 1988-09-22 | 下村 清雄 | Method and apparatus for producing container made of paper |
| JP3517736B2 (en) * | 2001-10-05 | 2004-04-12 | 健一 幅 | Manufacturing method of diaphragm for speaker |
-
1977
- 1977-01-21 JP JP604677A patent/JPS5832556B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5391725A (en) | 1978-08-11 |
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