JPS62144904A - Core structure of centrifugal molding machine - Google Patents
Core structure of centrifugal molding machineInfo
- Publication number
- JPS62144904A JPS62144904A JP60286596A JP28659685A JPS62144904A JP S62144904 A JPS62144904 A JP S62144904A JP 60286596 A JP60286596 A JP 60286596A JP 28659685 A JP28659685 A JP 28659685A JP S62144904 A JPS62144904 A JP S62144904A
- Authority
- JP
- Japan
- Prior art keywords
- core
- formwork
- molding machine
- centrifugal molding
- wall
- 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.)
- Granted
Links
Landscapes
- Moulds, Cores, Or Mandrels (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 （イ） 産業上の利用分野 この発明は、遠心成型機の中子構造に関する。[Detailed description of the invention] (b) Industrial application field The present invention relates to a core structure for a centrifugal molding machine.
（ロ） 従来の技術
従来、遠心成型機に取付けて、遠心力を利用して混線コ
ンクリートの注型を行い、中空筒状のコンクリート成型
品を製造する型枠には、上記中空筒状部を形成するため
の中子が用いられており、同中子は、コンクリートの成
型後、同コンクリート中から扱き取るために、同中子を
テーパー状に形成して長手方向の扱き勾配を設けていた
。(b) Conventional technology Conventionally, the above-mentioned hollow cylindrical part was attached to a centrifugal molding machine to cast mixed concrete using centrifugal force to produce hollow cylindrical concrete molded products. A core was used for forming the concrete, and the core was formed into a tapered shape to provide a handling gradient in the longitudinal direction in order to handle it from within the concrete after it was formed. .
（ハ） 発明が解決しようとする問題点しかしながら、
遠心成型による成型コンクリートは、重力の数十倍の圧
力で圧密されているため、中子と成型コンクリートとが
密着し、ＩＩＩ！：４抵抗が高くなって、中子が引抜き
にくくなり、中子用法き作業中に成型コンクリートが破
壊されることがあった。(c) Problems that the invention seeks to solveHowever,
Molded concrete produced by centrifugal molding is consolidated under pressure several tens of times greater than gravity, so the core and molded concrete are in close contact with each other. :4 The resistance became high, making it difficult to pull out the core, and the molded concrete was sometimes destroyed during core usage work.
（ニ） 問題点を解決するための手段
この発明では、型枠中に挿通した中子を、複数の外側壁
を連結して、同中子の外形を拡大及び縮小自在に構成し
、各外側壁の内側面に位置決め筒体を連設すると共に、
型枠及び中子の両端を支持するための内外枠の内側面に
それぞれ係合突起を突設して、同係合突起を位置決め筒
体の両端に挿入せしめて、各外側壁を拡大状態に保持す
べく構成すると共に、中子中に中枠を挿通して、各外側
壁を中枠に所定員の遊動を許容しながら連結してなる遠
心成型機の中子構造を提供するものである。(d) Means for Solving Problems In this invention, a core inserted into a formwork is constructed so that the outer shape of the core can be enlarged and reduced by connecting a plurality of outer walls. Along with installing a positioning cylinder on the inner surface of the wall,
Engaging protrusions are provided on the inner surfaces of the inner and outer frames for supporting both ends of the formwork and the core, and the engaging protrusions are inserted into both ends of the positioning cylinder to expand each outer wall. To provide a core structure for a centrifugal molding machine which is configured to hold the core, and has an inner frame inserted into the core, and each outer wall is connected to the inner frame while allowing movement of a predetermined number of members. .
（ホ） 作用・効果
この発明によれば、型枠及び中子を内外枠ｈＸら取外せ
ば、各外側壁は係合突起の拘束から解除されて中子の外
形が縮小し、成型品と中子外側面との密着が剥離して、
中子の抜取りが容易になり、中子汲取り作業時の成型品
破損が防止される。(E) Function/Effect According to this invention, when the formwork and core are removed from the inner and outer frames hX, each outer wall is released from the restraint of the engagement protrusions, the outer shape of the core is reduced, and the molded product is The adhesion with the outer surface of the core peels off,
It becomes easier to remove the core, and damage to the molded product during core removal work is prevented.
更に、上記のように中子外形を収縮させて恢き取りを行
うのであるから、中子外形に抜き勾配をつける必要がな
く、肉厚一定の中空筒状コンクリート成型品を作ること
ができる。Furthermore, since the core outer shape is shrunk and scraped as described above, there is no need to provide a draft angle to the core outer shape, and a hollow cylindrical concrete molded product with a constant wall thickness can be produced.
（へ） 実施例
この発明の実施例を図面にもとづき詳説すれば、（Ａ＞
は遠心成型機を示し、モーターに連結した油圧ポンプ（
１）からの油圧により星型の油圧モーター（２）を回転
せしめ、同モーター（２）の回転作動を連動機構（３）
を介して回転主軸（４）の一端に伝達し、同主軸（４）
の他端には回転円板（５）を連設し、同円板（５）の外
側面に複数のアーム（６）の基端（７）を放射状等間隔
に連設し、同アーム（６）の中途部（８）にて略り字形
状に前方向に屈折してアーム（６）の先端部（９）を形
成している。同先端部（９）の内側面（１０）は平面状
で回転主軸（４）の軸芯と平行に設定されており、複数
のアーム（６）先端部の内側面（１０）にて回転枠体（
１１）の外周面（１２）に当接している。(F) Embodiment The embodiment of this invention will be described in detail based on the drawings.
shows a centrifugal molding machine, with a hydraulic pump connected to a motor (
The hydraulic pressure from 1) rotates the star-shaped hydraulic motor (2), and the rotational operation of the motor (2) is linked to the interlocking mechanism (3).
to one end of the rotating main shaft (4) through the main shaft (4).
A rotary disk (5) is connected to the other end, and base ends (7) of a plurality of arms (6) are connected to the outer surface of the disk (5) at equal radial intervals. 6) is bent forward in an abbreviated shape at a midway portion (8) to form a tip portion (9) of the arm (6). The inner surface (10) of the tip (9) is planar and parallel to the axis of the main rotation shaft (4), and the inner surface (10) of the tip of the plurality of arms (6) forms a rotating frame. body(
11) is in contact with the outer circumferential surface (12).
回転枠体（１１）は、中央部に円孔を穿設した略円板状
の内枠（１３）と外枠（１４）との間に、断面略方形中
空筒状のコンクリート成型品（Ｂ）を形成するための型
枠（１５）多数を架設状に配設して、全体として略円筒
状の回転体形状に構成しており、型枠（１５）の上記成
型品（Ｂ）の一端に当る部分を回転枠体（１１）の内部
方向に開放して、四枠体（１１）の内部に注入した混練
コンクリートがこの開放部を介して型枠（１５）内部に
流入し、回転主軸（４）から伝達された回転枠体（１１
）の回転により発生する遠心力により混線コンリートを
型枠（１５）内部に圧入して、緻密かつ強固なコンクリ
ート製品を成型するものである。The rotating frame body (11) has a hollow cylindrical concrete molded product (B ) A large number of formworks (15) are arranged in an erected manner to form a generally cylindrical rotating body shape as a whole, and one end of the molded product (B) of the formwork (15) The part corresponding to the four frames (11) is opened toward the inside of the rotating frame (11), and the mixed concrete poured into the four frames (11) flows into the form (15) through this opening, and the rotating main shaft (4) The rotating frame body (11
) is pressed into the formwork (15) by the centrifugal force generated by the rotation of the concrete, forming a dense and strong concrete product.
型枠（１５）は、断面略方形筒状に形成されており、同
型枠（１５）の方形状の一辺を開放して、回転枠体（１
１）の内部に開口（１５ａ）せしめており、同型枠（１
５）の内部には、外形が略方形状の中子（１６）を収容
している。The formwork (15) is formed into a substantially rectangular cylindrical cross section, and one side of the rectangular shape of the formwork (15) is opened and the rotating frame body (1
An opening (15a) is formed inside the formwork (1).
5) houses a core (16) having a substantially rectangular outer shape.
中子（１６）は、それぞれ断面略方形状の外側壁（１７
）と中枠（１８）との二重構造になっており、外側壁（
１７）は一方の対角線上の隅角を略円弧状に丸めており
、他方の対角線上の隅角にて外側壁（１７）を左右外側
壁（１７ａ）（１７ｂ）に２分割しており、左右外側壁
（１７ａ）＜１７ｂ）の同隅角部（１７ｃ）（１７ｄ）
をそれぞれ略４５°に屈折せしめて左外側板の隅角部（
１７０）を外側から右外側壁（１７ｄ）にｍ畳せしめ、
しかも、各隅角部＜１７０ ）（１７ｄ ）を摺動自在
として外側壁（１７）の外形を縮小及び拡大可能として
いる。Each of the cores (16) has an outer wall (17) having a substantially rectangular cross section.
) and the middle frame (18), and the outer wall (
17) has one diagonal corner rounded into a substantially arc shape, and the other diagonal corner divides the outer wall (17) into left and right outer walls (17a) and (17b), Same corner portions (17c) (17d) of left and right outer walls (17a)<17b)
The corners of the left outer plate are bent at approximately 45 degrees (
170) from the outside to the right outer wall (17d),
In addition, each corner portion <170 2 ) (17d 2 ) is slidable so that the outer shape of the outer wall (17) can be reduced or expanded.
なお、左側壁（１７ａ＞の隅角部（１７０）は、基端か
ら先端にかけて次第に厚さを減じたナイフェツジ状に形
成されている。Note that the corner portion (170) of the left side wall (17a>) is formed in a knife shape with the thickness gradually decreasing from the base end to the tip end.
中枠（１８）は、断面略方形筒状で、外側壁（１７）の
内部を挿通しており、中枠（１８）の側壁に内方からボ
ルト（１９）を挿通し、同ボルト（１９）を介して左右
外側壁（１７ａ）（１７ｂ）をそれぞれ連結している。The middle frame (18) has a substantially rectangular cylindrical cross-section and is inserted through the outside wall (17).A bolt (19) is inserted into the side wall of the middle frame (18) from inside, and the bolt (19) is inserted into the side wall of the middle frame (18) from inside. ) are connected to the left and right outer walls (17a) and (17b), respectively.
すなわち、左右外側壁（１７ａ）（１７ｂ）内側面のボ
ルト（１９）の先端に当る位置に、断面略方形筒状の位
置決め筒体（２０）を連設し、同筒体（２０）の内部に
ボルト（１９）の先端を挿通して、同先端にナツト（２
１）を螺着することによって、中枠（１８）に左右外側
壁（１７ａ）（１７ｂ）をそれぞれ所定量の遊動を許容
しながら連結している。That is, a positioning cylinder (20) having a substantially rectangular cross-section is provided in succession at a position corresponding to the tip of the bolt (19) on the inner surface of the left and right outer walls (17a, 17b), and the inside of the cylinder (20) is Insert the tip of the bolt (19) into the hole and insert the nut (2) into the same tip.
1), the left and right outer walls (17a) and (17b) are connected to the middle frame (18) while allowing a predetermined amount of movement.
また、中枠（１８）内部の中央部には補強板（２２）を
介して位置決めパイプ（２３）を連設しており、同パイ
プ（２３）の両端には、それぞれ外側端をラッパ状に拡
開したガイドパイプ（２４）が出し入れ自在に挿入され
ている。In addition, a positioning pipe (23) is connected to the central part of the inner frame (18) via a reinforcing plate (22), and each of the outer ends of the pipe (23) has a trumpet shape at both ends. The expanded guide pipe (24) is inserted in such a way that it can be freely taken out and taken out.
一方、略円板状の内外枠（１３）（１４）の内側面には
、上記位置決めパイプ（２３）の当接位置にガイドビン
（２５）を突設しており、型枠（１５）及び中子（１６
）を内外枠（１３）（１４）に組付けて回転枠体（１１
）を組立てる際、位置決めパイプ（２３）からガイドパ
イプ（２４）を引き出し、ガイドパイプ（２４）のラッ
パ状拡開部にガイドビン（２５）の先端を挿入すること
で、中子（１６）の位置決めを正確かつ容易に行うこと
ができる。On the other hand, guide bins (25) are provided protruding from the inner surfaces of the substantially disc-shaped inner and outer frames (13) and (14) at the abutment position of the positioning pipe (23), and the formwork (15) and Middle child (16
) to the inner and outer frames (13) and (14) and rotate the rotating frame (11).
), by pulling out the guide pipe (24) from the positioning pipe (23) and inserting the tip of the guide bottle (25) into the trumpet-shaped enlarged part of the guide pipe (24), the core (16) can be assembled. Positioning can be performed accurately and easily.
また、内外枠（１３）（１４）の内側面には、位置決め
筒体（２０）の当接位置に、それぞれ断面が略方形状で
略クサビ形状の係合突起（２６）を突設しており、中子
（１６）を内外枠（１３）（１４）に組付ける際、クナ
ビ状の係合突起（２６）が左右外側壁（１７ａ）（１７
ｂ）内側面の位置決め筒体く２０）の両端に挿入されて
、左右外側壁（１７ａ）（１７ｂ）を拡大せしめて、コ
ンクリート成型時の中子（１６）外形を形成せしめ、か
つ、成型作業中、同中子（１６）の位置を保持するもの
である。Further, on the inner surfaces of the inner and outer frames (13) and (14), engagement protrusions (26) each having a substantially square cross section and a substantially wedge shape are provided protrudingly at the contact positions of the positioning cylinder (20). When assembling the core (16) to the inner and outer frames (13) (14), the hook-shaped engagement protrusions (26) engage the left and right outer walls (17a) (17).
b) It is inserted into both ends of the positioning cylinder 20) on the inner surface to expand the left and right outer walls (17a) (17b) to form the outer shape of the core (16) during concrete molding, and to perform molding work. This is to hold the position of the inner core (16).
上記のように構成された回転枠体（１１）は遠心成型機
（Ａ）の回転円板（５）に取付けられてコンクリートの
遠心成型が行われる。The rotating frame (11) configured as described above is attached to the rotating disk (5) of the centrifugal molding machine (A), and centrifugal molding of concrete is performed.
遠心成型を終了した回転枠体（１１）は回転円板（５）
から取外されて、コンクリート成型品（Ｂ）を型枠（１
５）及び中子（１６）から取外すのであるが、型枠（１
５）は外方に分離し、中子（１６）は位置決め筒体（２
０）から係合突起（２６）が扱去されるので、中子（１
６）の外形が縮小し、同成型品（Ｂ）の内面から中子（
１６）の左右外側壁（１７ａ ）（１７ｂ ）が剥離す
るので、容易に中子（１６）を長手方向に抜き去ること
ができる。The rotating frame body (11) that has completed centrifugal molding is a rotating disk (5)
The concrete molded product (B) is removed from the formwork (1
5) and the core (16), but the formwork (1
5) is separated outward, and the core (16) is separated from the positioning cylinder (2).
Since the engaging protrusion (26) is removed from the core (1)
The outer shape of 6) is reduced, and the core (
Since the left and right outer walls (17a) and (17b) of the core (16) are peeled off, the core (16) can be easily removed in the longitudinal direction.
第５図は、断面円形筒状のコンクリート成型品を作るた
めの型枠（２７）及び中子（２８）を示し、３個の外側
壁（２９）にて略円筒形状の中子（２８）を構成し、同
外側壁（２９）の内側面中央に、前記実施例と同様の位
置決め筒体（３０）を配設して中枠（３１）と遊動可能
に連結し、３個の外側壁（２９）の連結位置には、上記
同様で、かつ、上記連結位置の中子（２８）外形を補完
するための筒体（３２）を上記位置決め筒体（３０）と
同様にして中枠（３１）に連結しており前記実施例と同
様にして回転枠体に組立てられるものである。Figure 5 shows a formwork (27) and a core (28) for making a concrete molded product with a circular cylindrical cross section, and three outer walls (29) form a substantially cylindrical core (28). A positioning cylinder (30) similar to that of the above embodiment is disposed at the center of the inner surface of the outer wall (29) and movably connected to the middle frame (31), and the three outer walls At the connection position of (29), a cylinder (32) which is similar to the above and complements the outer shape of the core (28) at the connection position is placed in the same manner as the positioning cylinder (30). 31), and is assembled into the rotating frame in the same manner as in the previous embodiment.
第１図は、本発明による中子構造を有する遠心成型機の
全体側面図
第２図は、同正面図
第３図は、型枠の断面正面図
第４図は、第３図Ｉ−Ｉ断面図
第５図は、他実施例
（１３）：内枠
（１４）：外枠
（１５）：型枠
（１６）：中子
（１７ａ ） （１７ｂ ）・：外側壁（１８）：中
枠
（２０）：位置決め筒体
（２６）：係合突起
特許出願人 神 前 −部
代 理 人 松 尾 憲 −部第２図
Ａ
第３図
第４図
手続ネｒｌ）ＴＥ書 （自発）
昭和６１年１月１６日FIG. 1 is an overall side view of a centrifugal molding machine having a core structure according to the present invention. FIG. 2 is a front view thereof. FIG. 3 is a sectional front view of a formwork. The cross-sectional view in Fig. 5 shows another example (13): Inner frame (14): Outer frame (15): Formwork (16): Core (17a) (17b): Outer wall (18): Inner frame (20): Positioning cylinder (26): Engaging protrusion Patent applicant: Mr. Kamimae - Mr. Ken Matsuo - Mr. Ken Matsuo - Department Fig. 2A Fig. 3 Fig. 4 Procedure Nerl) TE letter (self-motivated) 1988 January 16th
Claims (1)
の外側壁（１７ａ）（１７ｂ）・・・を連結して、同中
子（１６）の外形を拡大及び縮小自在に構成し、各外側
壁（１７ａ）（１７ｂ）・・・の内側面に位置決め筒体
（２０）を連設すると共に、型枠（１５）及び中子（１
６）の両端を支持するための内外枠（１３）（１４）の
内側面にそれぞれ係合突起（２６）を突設して、同係合
突起（２６）を位置決め筒体（２０）の両端に挿入せし
めて、各外側壁（１７ａ）（１７ｂ）・・・を拡大状態
に保持すべく構成すると共に、中子（１６）中に中枠（
１８）を挿通して、各外側壁（１７ａ）（１７ｂ）・・
・を中枠（１８）に所定量の遊動を許容しながら連結し
てなる遠心成型機の中子構造。(1) The outer shape of the core (16) can be enlarged or reduced by connecting the core (16) inserted into the formwork (15) with a plurality of outer walls (17a), (17b)... A positioning cylinder (20) is provided in series on the inner surface of each outer wall (17a), (17b), etc., and a formwork (15) and a core (1
Engagement protrusions (26) are provided protrudingly on the inner surfaces of the inner and outer frames (13) and (14) for supporting both ends of the cylinder body (20). The inner frame (
18), and each outer wall (17a) (17b)...
A core structure for a centrifugal molding machine, in which the core structure of a centrifugal molding machine is formed by connecting the inner frame (18) with a predetermined amount of movement.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60286596A JPH0716930B2 (en) | 1985-12-18 | 1985-12-18 | Core structure of centrifugal molding machine |
| DE8686117517T DE3671857D1 (en) | 1985-12-18 | 1986-12-16 | MOLDING DEVICE FOR SPINCASTING. |
| EP86117517A EP0229347B1 (en) | 1985-12-18 | 1986-12-16 | Casting frame structure of centrifugal casting machine |
| US06/943,119 US4762485A (en) | 1985-12-18 | 1986-12-17 | Casting frame structure of centrifugal casting machine |
| KR1019860010915A KR920001984B1 (en) | 1985-12-18 | 1986-12-17 | Casting frame structur of centrifugal casting machine |
| CA000525605A CA1284019C (en) | 1985-12-18 | 1986-12-17 | Casting frame structure of centrifugal casting machine |
| AU66699/86A AU590650B2 (en) | 1985-12-18 | 1986-12-18 | Casting frame structure of centrifugal casting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60286596A JPH0716930B2 (en) | 1985-12-18 | 1985-12-18 | Core structure of centrifugal molding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62144904A true JPS62144904A (en) | 1987-06-29 |
| JPH0716930B2 JPH0716930B2 (en) | 1995-03-01 |
Family
ID=17706460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60286596A Expired - Lifetime JPH0716930B2 (en) | 1985-12-18 | 1985-12-18 | Core structure of centrifugal molding machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0716930B2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5255488U (en) * | 1975-10-16 | 1977-04-21 |
-
1985
- 1985-12-18 JP JP60286596A patent/JPH0716930B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5255488U (en) * | 1975-10-16 | 1977-04-21 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0716930B2 (en) | 1995-03-01 |
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