JPS60212323A - Extrusion molding nozzle - Google Patents
Extrusion molding nozzleInfo
- Publication number
- JPS60212323A JPS60212323A JP59068523A JP6852384A JPS60212323A JP S60212323 A JPS60212323 A JP S60212323A JP 59068523 A JP59068523 A JP 59068523A JP 6852384 A JP6852384 A JP 6852384A JP S60212323 A JPS60212323 A JP S60212323A
- Authority
- JP
- Japan
- Prior art keywords
- lattice
- extrusion molding
- shaped grooves
- grooves
- molding nozzle
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/20—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
- B28B3/26—Extrusion dies
- B28B3/269—For multi-channeled structures, e.g. honeycomb structures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/11—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels comprising two or more partially or fully enclosed cavities, e.g. honeycomb-shaped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/13—Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、流動性材料を押出成形して種々の多孔部材を
作る為の押出成形ノズルの改良に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in extrusion nozzles for extruding flowable materials to produce various porous members.
従来、各種の多孔部材９例えばセラミックス多孔板を作
るには、焼成前のペースト状のセラミックス原材料を押
出成形ノズルにて押出成形し、これを所要の長さに切断
して焼成していた。Conventionally, in order to make various porous members 9, such as ceramic porous plates, a paste-like ceramic raw material before firing was extruded using an extrusion molding nozzle, cut into required lengths, and fired.
押出成形ノズルは、第１図ａ、ｂに示す如く下面側に流
動性材料を押出す均一幅の方形の格子状溝１が所定の深
さで削設され、上面側に前記格子状溝１の交叉部１ａに
連通ずるように交叉部工。As shown in FIGS. 1a and 1b, the extrusion molding nozzle has rectangular lattice grooves 1 of uniform width cut at a predetermined depth on the lower surface side for extruding the fluid material, and the lattice grooves 1 on the upper surface side. The intersection part 1a is connected to the intersection part 1a.
の中心と同芯に流動性材料を格子状溝１に流入する円形
の導入孔２が等間隔配列に穿設されて成るものである。Circular introduction holes 2 are arranged at equal intervals and are arranged concentrically with the center of the lattice-like grooves 1 to allow the flowable material to flow into the lattice-like grooves 1.
ところで、斯かる押出成形ノズル３は、格子状溝１の交
叉部１ａに連通ずるように導入孔２が設けられているが
、その導入孔２の底に逆円錐状のテーパが付され、その
中心の格子状溝１の交叉部１ａへの連通口４は格子状溝
１の幅と同寸法の直径となっていて極めて狭い。従って
、流動性材料の格子状溝ｌへの流入がスムースにいかず
、しかも連通口４から等角四方の格子状溝１への流動性
材料の流れに偏りが生じ、流動性材料が少なく流入する
部分と多く流入する部分が生じる。By the way, such an extrusion molding nozzle 3 is provided with an introduction hole 2 so as to communicate with the intersection portion 1a of the lattice-shaped groove 1, and the bottom of the introduction hole 2 is tapered in the shape of an inverted cone. The communication opening 4 of the central lattice-shaped groove 1 to the intersection portion 1a has a diameter that is the same as the width of the lattice-shaped groove 1, and is extremely narrow. Therefore, the fluid material does not flow smoothly into the lattice grooves 1, and the flow of the fluid material from the communication ports 4 to the equiangular lattice grooves 1 is uneven, resulting in less fluid material flowing into the lattice grooves 1. There will be parts where there is a lot of inflow and parts where there is a lot of inflow.
この為、第２図に示す如く格子状溝１の交叉部まで大径
の導入孔２をストレートに穿設して格子状溝１の交叉部
近傍の十字状部分に連通している。For this purpose, as shown in FIG. 2, large-diameter introduction holes 2 are bored straight up to the intersections of the lattice grooves 1 and communicate with the cross-shaped portions of the lattice grooves 1 near the intersections.
この場合、格子状溝１への流動性材料の流入が比較的ス
ムースに行われるが、格子状溝１の四方向への流動性材
料の流れには依然として偏りが生じるものである。従っ
て寸法、精度の悪い多孔筒が押出成形されるという問題
があった。In this case, although the fluid material flows into the lattice grooves 1 relatively smoothly, the flow of the fluid material in the four directions of the lattice grooves 1 is still uneven. Therefore, there was a problem in that a porous tube with poor dimensions and precision was extruded.
本発明は斯かる問題を解消すべくなされたもので、導入
孔からの格子状溝への流動性材料の流入をスムースにで
きることは勿論のこと、格子状溝への流動性材料の流れ
に偏りが生じないようにしな押出成形ノズルを提供せん
とするものである。The present invention was made to solve this problem, and it is possible not only to smoothly flow the fluid material from the introduction hole into the lattice grooves, but also to prevent the fluid material from flowing unbalancedly into the lattice grooves. It is an object of the present invention to provide a flexible extrusion molding nozzle that prevents the occurrence of.
本発明の押出成形ノズルは、下面側に流動性材料を押出
す均一幅の格子状溝が削設され、上面側に前記格子状溝
の交叉部以外の直線部に連通して格子状溝に流動性材料
を流入する導入孔が等間隔配列に穿設され、１つの導入
孔の断面積がその導入孔の受け・もつ格子状溝の断面積
よりも大きくなされていることを特徴とするものである
。In the extrusion molding nozzle of the present invention, lattice-shaped grooves of uniform width are cut on the lower surface side for extruding a fluid material, and on the upper surface side, the lattice-shaped grooves are connected to straight parts other than the intersections of the lattice-shaped grooves. Introductory holes through which the fluid material flows are arranged at regular intervals, and the cross-sectional area of each inlet hole is larger than the cross-sectional area of the lattice-shaped groove that the inlet hole has. It is.
以下本発明の押出成形ノズルの一実施例を第３図ａ、ｂ
によって説明すると、１は下面側の流動性材料を押出す
均一幅の方形の格子状溝で、所定の深さに削設されてい
る。２は上面側に円形の導入孔で、前記格子状溝１の交
叉部１ａ以外の直線部１ｂの中間に連通されて格子状溝
１に流動性材料を流入するように等間隔配列に穿設され
ている。An embodiment of the extrusion molding nozzle of the present invention is shown below in Figures 3a and 3b.
To explain this, reference numeral 1 denotes a rectangular lattice-like groove of uniform width for extruding the fluid material on the lower surface side, which is cut to a predetermined depth. Reference numeral 2 denotes circular introduction holes on the upper surface side, which are arranged at equal intervals so as to communicate with the middle of the straight portions 1b of the lattice grooves 1 other than the intersections 1a, and to allow the flowable material to flow into the lattice grooves 1. has been done.
この導入孔２の１つの断面積は、その導入孔２が受けも
つ格子状溝１の断面積よりも大きくなされている。即ち
第４図に示す導入孔２の断面積ｍは、その導入孔２が受
けもつ格子状溝ｌの交叉部１ａから次の交叉部１ａまで
の直線部１ｂの断面積ｎよりも大きくしである。尚、導
入孔２の底は、格子状溝１の直線部１ｂの両側縁に向っ
て傾斜せしめられている。The cross-sectional area of one of the introduction holes 2 is larger than the cross-sectional area of the lattice groove 1 which the introduction hole 2 serves. That is, the cross-sectional area m of the introduction hole 2 shown in FIG. be. Note that the bottom of the introduction hole 2 is inclined toward both side edges of the straight portion 1b of the lattice groove 1.
かように構成された押出成形ノズル３′にて例エハセラ
ミソクス多孔板を作るセラミックス多孔筒を押出成形す
べく、焼成前のペースト状のセラミックス原材料を押出
成形ノズル３′の各導入孔２に導入し、所定の押出圧力
にて格子状ａ１へ流入すると、このペースト状のセラミ
ックス原材料は、導入孔２から格子状溝１への連通口４
′が広く且つ導入孔２の底部が連通口４′に向って傾斜
せしめられているので、スムースに格子状溝１へ流入す
る。また導入孔２の断面積ｍが導入孔２の受けもつ格子
状溝１の直線部１ｂの断面積ｎよりも広いので、ペース
ト状のセラミックス原材料は、格子状溝１の直線部ｉｂ
に十分流入でき、しかも連通口４′から格子状溝１の直
線部１ｂへのペースト状のセラミックス原材料の流入は
左右両側方への２方向であるからそのセラミックス材料
の流れに偏りが生じることがなく均等に流入できて格子
状溝１全体にセラミックス原材料をいきわたらせること
ができる。従って、格子状溝ｌから押出成形される第５
図のセラミックス多孔筒５は均質で寸法、精度の良いも
のとなる。そしてこのセラミックス多孔筒５を所要の長
さに切断して焼成すればセラミックス多孔板が得られる
。In order to extrude a ceramic porous tube for making an example of Ehaceramisox porous plate using the extrusion molding nozzle 3' configured as described above, a paste-like ceramic raw material before firing is introduced into each introduction hole 2 of the extrusion molding nozzle 3'. When flowing into the lattice a1 at a predetermined extrusion pressure, this paste-like ceramic raw material flows through the communication port 4 from the introduction hole 2 to the lattice groove 1.
' is wide and the bottom of the introduction hole 2 is inclined toward the communication port 4', so that it flows smoothly into the lattice groove 1. Furthermore, since the cross-sectional area m of the introduction hole 2 is wider than the cross-sectional area n of the straight portion 1b of the lattice-like groove 1 that the introduction hole 2 serves, the paste-like ceramic raw material is
Furthermore, since the paste-like ceramic raw material flows from the communication port 4' into the straight portion 1b of the lattice groove 1 in two directions, to the left and right sides, there is no possibility that the flow of the ceramic material will be uneven. This allows the ceramic raw material to flow evenly and evenly throughout the lattice grooves 1. Therefore, the fifth part extruded from the lattice groove l
The ceramic porous tube 5 shown in the figure is homogeneous and has good dimensions and precision. Then, by cutting this porous ceramic tube 5 into a required length and firing it, a porous ceramic plate can be obtained.
尚、上記実施例の押出成形ノズル３′は、セラミックス
多孔筒を押出成形する場合であるが、これに限るもので
はなく、各種流動性材料にて多孔筒を押出成形する場合
もある。Although the extrusion molding nozzle 3' in the above embodiment is used to extrude a porous ceramic cylinder, the extrusion molding nozzle 3' is not limited to this, and the extrusion molding nozzle 3' may be used to extrude a porous cylinder from various fluid materials.
また上記実施例の押出成形ノズル３′に於ける格子状溝
１は、方形格子の場合であるが、三角形格子、五角形格
子、六角形格子、菱形格子等であっても良いものである
。Further, the lattice-shaped grooves 1 in the extrusion molding nozzle 3' in the above embodiment are square lattice, but may be triangular lattice, pentagonal lattice, hexagonal lattice, rhombus lattice, etc.
以上の説明で判るように本発明の押出成形ノズルによれ
ば、導入孔から格子状溝への流動性材料の流入をスムー
スにでき、しかも格子状溝への流動性材料の流れに偏り
を生じさせることなく十分流入できるので、格子状溝全
体に流動性材料をいきわたらせることができて、均質で
寸法、精度の良好な各種の多孔部材を押出成形すること
ができるという効果がある。As can be seen from the above explanation, according to the extrusion molding nozzle of the present invention, it is possible to smoothly flow the fluid material from the introduction hole into the lattice-shaped grooves, and the flow of the fluid material into the lattice-shaped grooves is not biased. Since the flowable material can be sufficiently inflowed without being caused to flow, it is possible to spread the fluid material throughout the lattice-like grooves, which has the effect of making it possible to extrude various porous members that are homogeneous and have good dimensions and precision.
【図面の簡単な説明】
第１図ａ、ｂは従来の押出成形ノズルの一例を示す縦断
面及び平面図、第２図は従来の押出成形ノズルの他の例
を示す縦断面図、第３図ａ、ｂは本発明の押出成形ノズ
ルの一実施例を示す縦断面図及び平面図、第４図と導入
孔とその導入孔の受けもつ格子状溝の関係を示す図、第
５図は第３図ａ、ｂに示す押出成形ノズルによって得ら
れるセラミックス多孔筒の一部を示す断面図である。
１−−−−−一格子状溝、１ａ−−−−−一交叉部、ｌ
ｂ−・・−直線部、２−−−−−・導入孔、３’−−−
−−一押出成形型。
第１図
第３図[BRIEF DESCRIPTION OF THE DRAWINGS] FIGS. 1a and 1b are vertical cross-sectional views and plan views showing an example of a conventional extrusion nozzle, FIG. 2 is a vertical cross-sectional view showing another example of a conventional extrusion nozzle, and FIG. Figures a and b are a longitudinal sectional view and a plan view showing one embodiment of the extrusion nozzle of the present invention, Figure 4 is a diagram showing the relationship between the introduction hole and the lattice-shaped groove that the introduction hole has, and Figure 5 is FIG. 3 is a sectional view showing a part of a ceramic porous tube obtained by the extrusion molding nozzle shown in FIGS. 3a and 3b. 1-----One lattice groove, 1a---One intersection, l
b--straight section, 2-----introduction hole, 3'----
--One extrusion mold. Figure 1 Figure 3
Claims (1)
れ、上面側に前記格子状溝の交叉部以外の直線部に連通
して格子状溝へ流動性材料を流入する導入孔が等間隔配
列に穿設され、１つの導入孔の断面積がその導入孔の受
けもつ格子状溝の断面積よりも大きくなされていること
を特徴とする押出成形ノズル。A lattice-shaped groove of uniform width is cut on the lower surface side to extrude the fluid material, and an introduction hole on the upper surface side communicates with the linear portion other than the intersection of the lattice-shaped grooves and allows the fluid material to flow into the lattice-shaped groove. 1. An extrusion molding nozzle, characterized in that the introduction holes are formed at equal intervals, and the cross-sectional area of one introduction hole is larger than the cross-sectional area of a lattice-shaped groove that the introduction hole covers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59068523A JPS60212323A (en) | 1984-04-06 | 1984-04-06 | Extrusion molding nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59068523A JPS60212323A (en) | 1984-04-06 | 1984-04-06 | Extrusion molding nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60212323A true JPS60212323A (en) | 1985-10-24 |
Family
ID=13376165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59068523A Pending JPS60212323A (en) | 1984-04-06 | 1984-04-06 | Extrusion molding nozzle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60212323A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3192630A4 (en) * | 2014-09-08 | 2018-05-16 | Ibiden Co., Ltd | Extrusion molding mold |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56154021A (en) * | 1980-04-30 | 1981-11-28 | Asahi Glass Co Ltd | Die for honeycomb extrusion molding and its manufacture |
-
1984
- 1984-04-06 JP JP59068523A patent/JPS60212323A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56154021A (en) * | 1980-04-30 | 1981-11-28 | Asahi Glass Co Ltd | Die for honeycomb extrusion molding and its manufacture |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3192630A4 (en) * | 2014-09-08 | 2018-05-16 | Ibiden Co., Ltd | Extrusion molding mold |
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