JPH05337915A - Extrusion molding method for molded product with pattern on its surface - Google Patents

Extrusion molding method for molded product with pattern on its surface

Info

Publication number
JPH05337915A
JPH05337915A JP14940392A JP14940392A JPH05337915A JP H05337915 A JPH05337915 A JP H05337915A JP 14940392 A JP14940392 A JP 14940392A JP 14940392 A JP14940392 A JP 14940392A JP H05337915 A JPH05337915 A JP H05337915A
Authority
JP
Japan
Prior art keywords
extrusion
pattern
rollers
core
extrusion molding
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
Application number
JP14940392A
Other languages
Japanese (ja)
Inventor
Satoru Horide
悟 堀出
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.)
Inax Corp
Original Assignee
Inax 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 Inax Corp filed Critical Inax Corp
Priority to JP14940392A priority Critical patent/JPH05337915A/en
Publication of JPH05337915A publication Critical patent/JPH05337915A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To mold a molded body with embossed pattern such as a tile with high dimension accuracy by extending the end of a core to a contact site of rollers with an extrusion molded material and making pressing force of the rollers counteract against the extrusion molded material by means of the core. CONSTITUTION:In the extrusion molding method for a molded product with pattern on its surface, a kneaded material is extruded out of an extrusion outlet 7 of an extrusion molding machine with a core 8 disposed inside the extrusion outlet 7 and a hollow is formed inside the extrusion molded material by the core 8, and a pattern is embossed by pressing the rollers 5 and 6 disposed in front of the extrusion outlet 7 onto the surface of the extrusion molded material. The end of core 8 is extended to the contact site of the rollers 5 and 6 with the extrusion molded material, and the pressing force of rollers 5 and 6 is made to counteract against the extrusion molded material by the core 8. The pressing force of rollers 5 and 6, therefore, is made to counteract against the extrusion molding material by the core 8, and the hollow section of the extrusion molded material is not contracted by the pressing force.

Description

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

【0001】[0001]

【産業上の利用分野】本発明は、表面に押付模様を有す
るタイル等の成形方法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for molding tiles having a pressing pattern on the surface.

【0002】[0002]

【従来の技術】第2図(a)、(b)に示すように、表
面に筋1a、2aなどの押付模様を有するタイル1、2
を成形する従来法としては、特願昭60−173873
号の第2図に記載の方法がある。この従来法について第
3図を参照して説明する。
2. Description of the Related Art As shown in FIGS. 2 (a) and 2 (b), tiles 1 and 2 having pressing patterns such as stripes 1a and 2a on their surfaces.
Japanese Patent Application No. 60-173873 is a conventional method for molding
There is a method described in FIG. This conventional method will be described with reference to FIG.

【0003】押出成形機の先端の成形ダイス3から坏土
混練物が長帯状に押出されている。成形ダイス3の前方
には、押出成形物4を上下から挟むように筋付けローラ
5、6が配設されている。該ローラ5、6の外周面に
は、ローラ軸心と平行方向に延在する突条5a、6aが
設けられており、この突条5a、6aを成形物4の表面
(上下両面)に食い込ませることにより、長帯状成形物
4の短手方向(幅方向)に延在する多数の溝4aがつけ
られる。
The kneaded material is extruded in the form of a long strip from a molding die 3 at the tip of the extruder. In front of the molding die 3, creasing rollers 5 and 6 are arranged so as to sandwich the extruded product 4 from above and below. On the outer peripheral surfaces of the rollers 5 and 6, there are provided ridges 5a and 6a extending in a direction parallel to the roller axis, and the ridges 5a and 6a are cut into the surface (upper and lower surfaces) of the molded product 4. By doing so, a large number of grooves 4a extending in the lateral direction (width direction) of the long-belt shaped product 4 are provided.

【0004】このように筋模様がつけられた成形物4
は、次いで1枚のタイルの長さに切断され、乾燥、焼成
されてタイル製品となるなお、第4図及び第5図は成形
ダイスの一例を示す断面図及び分解斜視図である。この
成形ダイス3は、鋳物よりなる枠板部3aと、該枠板部
3aにボルト等によって取り付けられた口金3bとを備
えている。口金3bはSKDなどの材料にて構成され
る。このような成形ダイスであると、枠板部3aを押出
成形機本体に固定したままにしておき、口金3bのみを
交換して別の形状の押出成形物を成形できる。
Molded product 4 having a streak pattern in this way
Is then cut into the length of one tile, dried and fired to form a tile product. FIGS. 4 and 5 are a sectional view and an exploded perspective view showing an example of a molding die. The molding die 3 includes a frame plate portion 3a made of cast metal, and a die 3b attached to the frame plate portion 3a with bolts or the like. The base 3b is made of a material such as SKD. With such a molding die, the frame plate portion 3a can be left fixed to the main body of the extrusion molding machine, and only the mouthpiece 3b can be replaced to form an extrusion molding product having a different shape.

【0005】種々の稼動運転の結果、第6図(押出成形
機の先端部の断面図)に示す如く、この枠板部3aと口
金3bとの合計の肉厚を40〜90mmとりわけ50〜
80mmとすると好適であることが分った。
As a result of various operating operations, as shown in FIG. 6 (cross-sectional view of the tip of the extruder), the total thickness of the frame plate portion 3a and the die 3b is 40 to 90 mm, especially 50 to 50 mm.
It has been found that a thickness of 80 mm is suitable.

【0006】なお、押出口から押出された成形物は、ロ
ーラや板面の上に載って次工程へ送られる。この板面
は、平滑である場合と、浅い溝を適宜の条数だけ設ける
場合とがある。浅い溝をつけるのは、成形物が板面にピ
タっと密着して動かなくなることを防止するためであ
る。この浅い溝は、複数本を平行に設けられるが、格子
状に設けられることが多い。溝を平行に設ける場合、溝
を押出方向に平行にする場合と、押出方向に直交又は斜
交させる場合とがある。
The molded product extruded from the extrusion port is placed on a roller or a plate surface and sent to the next step. This plate surface may be smooth or may be provided with shallow grooves by an appropriate number of threads. The shallow groove is provided to prevent the molded product from sticking tightly to the plate surface and becoming immobile. The plurality of shallow grooves are provided in parallel, but are often provided in a grid pattern. When the grooves are provided in parallel, the grooves may be parallel to the extrusion direction, or may be orthogonal or oblique to the extrusion direction.

【0007】ところで、この押出成形物4は、内部に空
洞部4Aが複数個形成されている。焼成後に、この空洞
部4Aに沿って2分割することにより第2図(a)に示
した形状のタイルとなる。
By the way, the extruded product 4 has a plurality of hollow portions 4A formed therein. After firing, the tile is divided into two along the cavity 4A to obtain a tile having the shape shown in FIG. 2 (a).

【0008】この空洞部4Aを形成するために、第4図
及び第5図に示す如く、押出口7内に中玉8が配置され
ている。この中玉8は、基端側の支持部9から前方(押
出方向)に延在するロッド状のものであり、中玉8の先
端は口金3bの先端と面一か若干それよりも突出してい
る。
In order to form the hollow portion 4A, as shown in FIGS. 4 and 5, a middle ball 8 is arranged in the extrusion port 7. The center ball 8 is a rod-shaped member that extends forward (in the pushing direction) from the support portion 9 on the base end side, and the tip of the center ball 8 is flush with the tip of the base 3b or slightly protrudes therefrom. There is.

【0009】[0009]

【発明が解決しようとする課題】第3図に示すように、
中空押出成形物4をローラ5、6で挟み付けて模様付け
する場合、ローラ5、6の押圧力のために押出成形物4
はその空洞部4Aが押し縮められるように変形してしま
う。
DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention As shown in FIG.
When the hollow extruded product 4 is sandwiched between the rollers 5 and 6 and patterned, the extruded product 4 is pressed due to the pressing force of the rollers 5 and 6.
Deforms so that its hollow portion 4A is compressed.

【0010】[0010]

【課題を解決するための手段】本発明の表面に模様を有
する成形品の押出成形方法は、押出口の内部に中玉が配
置されてなる押出成形機の該押出口から混練物を押出
し、該中玉によって押出成形物の内部に空洞を形成する
と共に、該押出口の前方に配置されたローラを該押出成
形物の表面に押し当てて模様付けを行なうようにした表
面に模様を有する成形品の押出成形方法において、前記
中玉の先端を、該ローラと押出成形物との接触部位にま
で延在させ、ローラが押出成形物に与える押圧力を該中
玉で対抗させるようにしたことを特徴とする表面に模様
を有するものである。
The extrusion molding method of a molded article having a pattern on the surface of the present invention is to extrude a kneaded product from the extrusion port of an extruder in which a middle ball is arranged inside the extrusion port, Forming a cavity inside the extruded product by means of the middle ball and forming a pattern by pressing a roller arranged in front of the extrusion port against the surface of the extruded product to form a pattern. In the extrusion molding method of a product, the tip of the inner ball is extended to the contact portion between the roller and the extruded product, and the pressing force applied to the extruded product by the roller is opposed by the inner ball. And has a pattern on the surface.

【0011】[0011]

【作用】かかる本発明の表面に模様を有する成形品の押
出成形方法にあっては、ローラが押出成形物に加えられ
る押圧力は中玉によって対抗され、押出成形物の空洞部
は押し縮められない。
In the extrusion molding method of a molded article having a pattern on the surface of the present invention, the pressing force applied by the roller to the extruded product is opposed by the inner ball and the hollow portion of the extruded product is compressed. Absent.

【0012】[0012]

【実施例】第1図は実施例に係る表面に模様を有する成
形品の押出成形方法に用いられる押出成形機の押出口部
分の断面図である。この押出口7内に配置された中玉8
は、ローラ5、6の間の部位にまで前方(押出方向)へ
延出されている。
EXAMPLE FIG. 1 is a sectional view of an extrusion port of an extrusion molding machine used in an extrusion molding method of a molded article having a pattern on the surface according to an example. Medium balls 8 placed in this extrusion port 7
Is extended forward (in the pushing direction) to a portion between the rollers 5 and 6.

【0013】この押出成形機を用いて押出成形を行なう
場合、成形される中空押出成形物は、押出口7から押し
出されてローラ5、6間に到っても未だに中玉8が挿し
込まれた状態となっており、ローラ5、6から挟圧力が
加えられても空洞部を押し縮める変形は全く生じない。
When extrusion molding is carried out using this extrusion molding machine, the hollow extruded product to be molded is extruded from the extrusion port 7 and the middle ball 8 is still inserted even if it reaches between the rollers 5 and 6. In this state, even if a pressing force is applied from the rollers 5 and 6, the cavity is not deformed by being compressed.

【0014】このため、寸法精度の良好な押出成形物が
製造される。
Therefore, an extruded product having good dimensional accuracy can be manufactured.

【0015】上記実施例では中玉を中実ロッド状として
いるが、中空ロッド状としても良い。中玉の本数は、当
然ながら、図示のものに限られない。中玉の形状は成形
される成形物に応じて図示以外のものに変えらても良い
ことは明らかである。
In the above-mentioned embodiment, the solid balls have a solid rod shape, but they may have a hollow rod shape. Naturally, the number of middle balls is not limited to that shown in the figure. It is obvious that the shape of the inner ball may be changed to a shape other than that shown in the drawing depending on the molded product to be molded.

【0016】上記実施例では、ローラ5、6間の位置ま
で中玉8を延在させているが、それよりもさらに前方に
まで中玉を延長しても良い。
In the above embodiment, the middle ball 8 is extended to the position between the rollers 5 and 6, but the middle ball may be extended further forward than that.

【0017】上記実施例は二ッ割りタイルの成形に適用
されたものであるが、本発明はこれ以外の各種の中空押
出成形物の成形に適用できる。
Although the above embodiment is applied to the molding of halved tiles, the present invention can be applied to the molding of various hollow extruded products other than this.

【0018】[0018]

【発明の効果】以上の通り本発明の表面に模様を有する
成形品の押出成形方法によると、中空押出成形物の空洞
部を押し縮めることなく該成形物の表面に押付模様を形
成することができる。従って、本発明によると、押付模
様を有するタイル等の成形体を高寸法精度にて成形する
ことができる。
As described above, according to the extrusion molding method for a molded article having a pattern on the surface of the present invention, a pressing pattern can be formed on the surface of the molded article without compressing the hollow portion of the hollow extrusion molded article. it can. Therefore, according to the present invention, a molded product such as a tile having a pressing pattern can be molded with high dimensional accuracy.

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

【図1】実施例方法を説明する断面図である。FIG. 1 is a cross-sectional view illustrating an example method.

【図2】押付模様を有するタイルの斜視図である。FIG. 2 is a perspective view of a tile having a pressing pattern.

【図3】従来方法を説明する斜視図である。FIG. 3 is a perspective view illustrating a conventional method.

【図4】従来の押出口部分の断面図である。FIG. 4 is a cross-sectional view of a conventional extrusion port portion.

【図5】従来の成形ダイスの分解斜視図である。FIG. 5 is an exploded perspective view of a conventional molding die.

【図6】従来の押出成形機先端部の縦断面図である。FIG. 6 is a vertical cross-sectional view of the tip of a conventional extruder.

【符号の説明】[Explanation of symbols]

1、2 タイル 3 成形ダイス 4 押出成形物 5、6 ローラ 5a、6a 突条 7 押出口 8 中玉 1, 2 Tile 3 Molding die 4 Extruded product 5, 6 Roller 5a, 6a Projection 7 Extrusion port 8 Medium ball

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 押出口の内部に中玉が配置されてなる押
出成形機の該押出口から混練物を押出し、該中玉によっ
て押出成形物の内部に空洞を形成すると共に、該押出口
の前方に配置されたローラを該押出成形物の表面に押し
当てて模様付けを行なうようにした表面に模様を有する
成形品の押出成形方法において、 前記中玉の先端を、該ローラと押出成形物との接触部位
にまで延在させ、ローラが押出成形物に与える押圧力を
該中玉で対抗させるようにしたことを特徴とする表面に
模様を有する成形品の押出成形方法。
1. A kneaded product is extruded from the extrusion port of an extruder in which a medium ball is arranged inside the extrusion port, and a cavity is formed inside the extruded product by the medium ball, and In the extrusion molding method of a molded product having a pattern on the surface, a roller arranged in front is pressed against the surface of the extruded product, wherein the tip of the middle ball is the roller and the extrusion molded product. An extrusion molding method for a molded article having a pattern on its surface, characterized in that the pressing force applied to the extrusion molded article by the roller is made to oppose to the contact area with the middle ball.
JP14940392A 1992-06-09 1992-06-09 Extrusion molding method for molded product with pattern on its surface Pending JPH05337915A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14940392A JPH05337915A (en) 1992-06-09 1992-06-09 Extrusion molding method for molded product with pattern on its surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14940392A JPH05337915A (en) 1992-06-09 1992-06-09 Extrusion molding method for molded product with pattern on its surface

Publications (1)

Publication Number Publication Date
JPH05337915A true JPH05337915A (en) 1993-12-21

Family

ID=15474374

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14940392A Pending JPH05337915A (en) 1992-06-09 1992-06-09 Extrusion molding method for molded product with pattern on its surface

Country Status (1)

Country Link
JP (1) JPH05337915A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6475205A (en) * 1987-09-17 1989-03-20 Shigeji Moriwaki Tile pattern forming method and its device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6475205A (en) * 1987-09-17 1989-03-20 Shigeji Moriwaki Tile pattern forming method and its device

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