JPH07102565B2 - Thin and lightweight hollow PC board continuous molding equipment - Google Patents

Thin and lightweight hollow PC board continuous molding equipment

Info

Publication number
JPH07102565B2
JPH07102565B2 JP2413869A JP41386990A JPH07102565B2 JP H07102565 B2 JPH07102565 B2 JP H07102565B2 JP 2413869 A JP2413869 A JP 2413869A JP 41386990 A JP41386990 A JP 41386990A JP H07102565 B2 JPH07102565 B2 JP H07102565B2
Authority
JP
Japan
Prior art keywords
extrusion
base frame
cement mortar
frame
thin
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 - Lifetime
Application number
JP2413869A
Other languages
Japanese (ja)
Other versions
JPH04219209A (en
Inventor
光比古 橋本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kubota Corp
Original Assignee
Kubota Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kubota Corp filed Critical Kubota Corp
Priority to JP2413869A priority Critical patent/JPH07102565B2/en
Publication of JPH04219209A publication Critical patent/JPH04219209A/en
Publication of JPH07102565B2 publication Critical patent/JPH07102565B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/20Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
    • B28B3/22Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded by screw or worm
    • B28B3/228Slipform casting extruder, e.g. self-propelled extruder

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】この発明は薄型軽量中空PC板の
連続成形装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for continuously forming thin and lightweight hollow PC boards.

【0002】[0002]

【従来の技術】従来、軽量中空PC板の連続成形方法と
して、鋼製ベッド上にセメントモルタルの押出成形機を
セットし、セメントモルタルを鋼製ベッド上に押さえ付
けつつ後方へ押出し、この反力によって押出成形機を前
進させながらパネルを成形していく手段が知られてい
る。この成形手段は注型成形に比し連続成形が可能であ
り、また需要に応じ任意長さのPC板が大量に成形でき
るといった利点を有する。
2. Description of the Related Art Conventionally, as a method for continuously molding a lightweight hollow PC plate, an extruder for cement mortar is set on a steel bed, and the cement mortar is pressed backward on the steel bed to be extruded rearward. There is known a means for forming a panel while advancing an extruder. This molding means has an advantage that continuous molding is possible as compared with cast molding and that a large number of PC plates of arbitrary length can be molded according to demand.

【0003】[0003]

【従来技術の問題点】しかしながら、上記手段はセメン
トモルタルの押出反力のみによって押出成形機を前進さ
せていくため、成形可能なパネルは通常厚さ大略 100 m
m 以上の厚手の製品に限られ、これ以下の厚さのパネル
は前記反力が不足し成形不能である問題があった。
However, since the above means advances the extruder by only the extrusion reaction force of the cement mortar, the moldable panel usually has a thickness of about 100 m.
This is limited to thick products of m or more, and a panel having a thickness of less than m has a problem that the reaction force is insufficient and molding is impossible.

【0004】即ち、軽量中空PC板の場合成形圧を高く
できないので吐出材料の締め固めが弱く、従って薄い成
形板の場合反力で前進させようとすると成形パネルにク
ラックが発生し、あえて反力で成形機を前進させ続ける
と成形板の抗力不足により成形品表面に凹凸ができ平滑
な表面とならない問題があった。
That is, in the case of a light weight hollow PC plate, the molding pressure cannot be increased, so that the discharge material is less compacted. Therefore, in the case of a thin molded plate, when an attempt is made to advance with a reaction force, a crack is generated in the molding panel, and the reaction force is dared However, if the molding machine is continuously advanced, there is a problem that the surface of the molded product becomes uneven due to insufficient resistance of the molded plate, and the surface does not become smooth.

【0005】[0005]

【発明が解決しようとする課題】この発明は上記問題点
に鑑み、薄い成形板であっても連続成形可能な薄型軽量
中空PC板の連続成形装置を提供することを目的として
なされたものである。
SUMMARY OF THE INVENTION In view of the above problems, the present invention has been made for the purpose of providing a thin and lightweight hollow PC plate continuous molding apparatus capable of continuously molding even a thin molded plate. .

【0006】[0006]

【課題を解決するための手段】即ち、この発明の薄型軽
量中空PC板の連続成形装置は、基面に沿って移動可能
とされた基枠上に、前記基面上にセメントモルタルを供
給するホッパが設けられ、該ホッパの吐出口には製品断
面形状を規制する前記セメントモルタル用押出枠が前記
基枠の進行方向に対し後方へ向け延出配置されていると
共に、該押出用枠内部に前記セメントモルタルを後方へ
送り出すスクリュウ軸が押出方向へ向け延出して軸支さ
れ、該スクリュウ軸には高周波振動を与える加振機が設
けられ、さらに前記基枠にはスクリュウの押出速度に同
期して基枠を前進駆動する駆動装置が設けられているこ
とを特徴とするものである。
That is, in the continuous molding apparatus for thin and lightweight hollow PC boards of the present invention, cement mortar is supplied onto a base frame which is movable along the base surface. A hopper is provided, and at the discharge port of the hopper, the extrusion frame for cement mortar that regulates the cross-sectional shape of the product is arranged to extend rearward with respect to the traveling direction of the base frame, and inside the extrusion frame. A screw shaft for sending the cement mortar backward is extended and axially supported in the extrusion direction, the screw shaft is provided with a shaker for giving high frequency vibration, and the base frame is further synchronized with the screw extrusion speed. A drive device for driving the base frame forward is provided.

【0007】[0007]

【実施例】次にこの発明の実施例を説明する。第1図は
この発明の実施例の断面図、第2図は第1図の(イ)−
(イ)線要部断面図である。この発明の薄型軽量中空P
C板の連続成形装置1は、鋼製ベッド等からなる基面2
に沿って移動可能とされた基枠3上に、セメントモルタ
ルSを供給するホッパ4が設けられ、ホッパ4の吐出口
4Aには製品断面形状を規制するセメントモルタル用押
出枠5が基枠3の進行方向(矢印F)に対し後方へ向け
延出配置され、押出用枠5内部にセメントモルタルSを
後方へ送り出すスクリュウ軸6…6が押出方向(矢印
A)へ向け延出して軸支され、スクリュウ軸6…6には
高周波振動を与える加振機7が設けられ、さらに基枠3
にはスクリュウの押出速度に同期して基枠3を前進駆動
する駆動装置8が設けられて構成されている。
Embodiments of the present invention will be described below. FIG. 1 is a sectional view of an embodiment of the present invention, and FIG. 2 is (a) -of FIG.
(A) It is a sectional view of the main part of the line. Thin and lightweight hollow P according to the present invention
The C plate continuous forming apparatus 1 has a base surface 2 made of a steel bed or the like.
A hopper 4 for supplying cement mortar S is provided on a base frame 3 that is movable along the base frame 3, and an extrusion frame 5 for cement mortar that regulates the product cross-sectional shape is provided at a discharge port 4A of the hopper 4 as the base frame 3 The screw shafts 6 ... 6 that are arranged to extend rearward with respect to the traveling direction (arrow F) and send the cement mortar S rearward inside the extrusion frame 5 extend toward the extrusion direction (arrow A) and are pivotally supported. The screw shafts 6 ... 6 are provided with a vibration exciter 7 for giving high frequency vibration, and further the base frame 3
Is provided with a drive device 8 for driving the base frame 3 forward in synchronization with the screw extrusion speed.

【0008】なお、第1図中3A、3Aは基枠に設けら
れた車輪を示し駆動装置8によりベルト、またはシャフ
ト等適宜伝導装置8Aにより駆動可能とされている。ま
た、8Bはスクリュウ軸6…6に回転駆動力を伝達する
ベルト、またはシャフト等の伝導装置を示す。図中9は
必要に応じて設けられる表面仕上げ機を示し、表面に凹
凸模様等を設ける場合に設けられる。上記実施例におい
て、加振機7はスクリュウ軸6…6部分に振動を与える
ようセメントモルタル用押出枠5上に設けられる。
It is to be noted that 3A and 3A in FIG. 1 indicate wheels provided on the base frame, which can be driven by a drive device 8 by a transmission device 8A such as a belt or a shaft. Further, 8B indicates a transmission device such as a belt or a shaft for transmitting the rotational driving force to the screw shafts 6 ... In the figure, 9 indicates a surface finishing machine which is provided as necessary, and is provided when an uneven pattern or the like is provided on the surface. In the above-mentioned embodiment, the vibration exciter 7 is provided on the cement mortar extrusion frame 5 so as to apply vibration to the screw shafts 6 ...

【0009】[0009]

【作用】ホッパ4に予め混練したセメントモルタルSを
投入し、下部吐出口4AよりセメントモルタルSを吐出
させる。セメントモルタルSはスクリュウ軸6…6によ
り強制的に押出され、かつ押出枠5により断面形状が規
制されて基面1上に吐出される。このとき、スクリュウ
軸6…6はセメントモルタルSを押出す方向に回転する
と同時に加振機7により高周波振動が与えられているの
で、セメントモルタルSは、例えば零スランプモルタル
のような含水率の非常に低いものであっても材料詰まり
を生じることなくスムースに成形吐出されていく。ま
た、スクリュウ軸6…6の部分はそのまま中空部として
残る。
The cement mortar S that has been kneaded in advance is put into the hopper 4, and the cement mortar S is discharged from the lower discharge port 4A. The cement mortar S is forcibly extruded by the screw shafts 6 ... 6, and the cross-sectional shape is regulated by the extrusion frame 5, and is discharged onto the base surface 1. At this time, since the screw shafts 6 ... 6 rotate in the direction in which the cement mortar S is extruded and at the same time high-frequency vibration is applied by the vibrator 7, the cement mortar S has an extremely high water content, such as zero slump mortar. Even if it is very low, it will be smoothly molded and discharged without causing material clogging. Further, the screw shafts 6 ... 6 remain as hollow parts.

【0010】一方、基枠1は駆動装置8により前進され
るので成形体には無理な抗力は全く発生せず、従って厚
さが薄くても表面状態の非常に良い製品が連続成形され
る。
On the other hand, since the base frame 1 is moved forward by the drive unit 8, no unreasonable drag force is generated in the molded body, and therefore even if the thickness is thin, a product having a very good surface condition can be continuously molded.

【0011】[0011]

【発明の効果】以上説明したように、この発明の装置に
よれば厚さの薄い軽量中空PC板であっても連続的に押
出成形が可能となるのである。
As described above, according to the apparatus of the present invention, it is possible to continuously extrude a lightweight hollow PC plate having a small thickness.

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

【図1】この発明の実施例の側面図である。FIG. 1 is a side view of an embodiment of the present invention.

【図2】〔図1〕の(イ)−(イ)線要部断面図であ
る。
FIG. 2 is a sectional view taken along the line (a)-(a) of FIG.

【符号の説明】[Explanation of symbols]

1…薄型軽量中空PC板の連続成形装置 2…基面 3…基枠 4…ホッパ 4A…吐出口 5…セメントモルタル用押出枠 6…スクリュウ軸 7…加振機 8…駆動装置 1 ... Continuous molding device for thin and lightweight hollow PC plate 2 ... Base surface 3 ... Base frame 4 ... Hopper 4A ... Discharge port 5 ... Cement mortar extrusion frame 6 ... Screw shaft 7 ... Vibrator 8 ... Drive device

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 基面に沿って移動可能とされた基枠上
に、前記基面上にセメントモルタルを供給するホッパが
設けられ、該ホッパの吐出口には製品断面形状を規制す
る前記セメントモルタル用押出枠が前記基枠の進行方向
に対し後方へ向け延出配置されていると共に、該押出用
枠内部に前記セメントモルタルを後方へ送り出すスクリ
ュウ軸が押出方向へ向け延出して軸支され、該スクリュ
ウ軸には高周波振動を与える加振機が設けられ、さらに
前記基枠にはスクリュウの押出速度に同期して基枠を前
進駆動する駆動装置が設けられていることを特徴とする
薄型軽量中空PC板の連続成形装置。
1. A hopper that supplies cement mortar onto the base surface is provided on a base frame that is movable along the base surface, and the cement that regulates the cross-sectional shape of the product is provided at the discharge port of the hopper. The extrusion frame for mortar is arranged so as to extend rearward with respect to the traveling direction of the base frame, and a screw shaft for feeding the cement mortar backward is extended and axially supported inside the extrusion frame in the extrusion direction. A thin type characterized in that the screw shaft is provided with a shaker for giving high-frequency vibration, and the base frame is provided with a drive device for driving the base frame forward in synchronization with the screw extrusion speed. Continuous molding machine for lightweight hollow PC boards.
JP2413869A 1990-12-19 1990-12-19 Thin and lightweight hollow PC board continuous molding equipment Expired - Lifetime JPH07102565B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2413869A JPH07102565B2 (en) 1990-12-19 1990-12-19 Thin and lightweight hollow PC board continuous molding equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2413869A JPH07102565B2 (en) 1990-12-19 1990-12-19 Thin and lightweight hollow PC board continuous molding equipment

Publications (2)

Publication Number Publication Date
JPH04219209A JPH04219209A (en) 1992-08-10
JPH07102565B2 true JPH07102565B2 (en) 1995-11-08

Family

ID=18522424

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2413869A Expired - Lifetime JPH07102565B2 (en) 1990-12-19 1990-12-19 Thin and lightweight hollow PC board continuous molding equipment

Country Status (1)

Country Link
JP (1) JPH07102565B2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59212202A (en) * 1983-05-09 1984-12-01 オ−ワイ・パ−テク・エ−ビ− Method and device for molding hollow slab made of concrete

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59212202A (en) * 1983-05-09 1984-12-01 オ−ワイ・パ−テク・エ−ビ− Method and device for molding hollow slab made of concrete

Also Published As

Publication number Publication date
JPH04219209A (en) 1992-08-10

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