JP2502317Y2 - Abrasive cleaning material for extrusion mold - Google Patents
Abrasive cleaning material for extrusion moldInfo
- Publication number
- JP2502317Y2 JP2502317Y2 JP5908491U JP5908491U JP2502317Y2 JP 2502317 Y2 JP2502317 Y2 JP 2502317Y2 JP 5908491 U JP5908491 U JP 5908491U JP 5908491 U JP5908491 U JP 5908491U JP 2502317 Y2 JP2502317 Y2 JP 2502317Y2
- Authority
- JP
- Japan
- Prior art keywords
- molding die
- cleaning material
- polishing
- extrusion molding
- cleaning
- 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
Links
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この考案は、成形金型に付着した
汚濁物、酸化物等を除去研掃し成形機能を回復させるた
め使用する押出し成形金型用研掃材に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polishing / cleaning material for an extrusion molding die, which is used for removing and cleaning contaminants, oxides, etc. adhering to the molding die to restore the molding function.
【０００２】[0002]
【従来の技術】図３は、合成樹脂を材料として各種成形
品を製造する押出し成形機の主要部を示す断面図であ
る。固形の熱可塑性合成樹脂の成形材料をホッパ２１か
らヒータ２２により加熱されているシリンダ（バレル）
２３内に供給し、シリンダ２３内に装備したスクリュー
２４の回転によって樹脂を加熱・混練・可塑化し、シリ
ンダ２３の先端に装着した成形金型（ダイ）２５に圧送
して成形する装置である。２６はブレーカプレートであ
り、多数の貫通孔を有し溶融樹脂を整流して成形金型２
５の各部分に均一に供給するためのものであり、成形品
の寸法精度、外観、表面の円滑性つや等を向上させる効
果を有するものである。2. Description of the Related Art FIG. 3 is a sectional view showing a main part of an extrusion molding machine for manufacturing various molded products using synthetic resin as a material. A cylinder (barrel) in which a molding material of solid thermoplastic synthetic resin is heated by a heater 22 from a hopper 21.
23 is a device for supplying resin into a cylinder 23, heating, kneading and plasticizing the resin by rotation of a screw 24 provided in the cylinder 23, and sending the resin under pressure to a molding die (die) 25 mounted at the tip of the cylinder 23 for molding. A breaker plate 26 has a large number of through holes and straightens the molten resin to form the molding die 2.
5 is to be uniformly supplied to each part and has an effect of improving dimensional accuracy, appearance, smoothness of the surface and gloss of the molded product.
【０００３】図４は、上記シリンダ２４にパイプ製造用
の成形金型２５を装着した例の断面図である。パイプ等
のように中空部を有する押出し成形品用の成形金型２５
は、外周部を成形する金型本体２５ａの内部に芯金（コ
ア）２５ｂを固定した構造となっており、金型本体２５
ａと芯金（コア）２５ｂとの間の環状空隙から溶融樹脂
を押出し成形する構成となっている。なお、金型本体２
５ａの外周部にもヒータ２２ａが装着され成形金型２５
を加熱保温してある。FIG. 4 is a sectional view of an example in which a molding die 25 for manufacturing a pipe is mounted on the cylinder 24. Molding die 25 for an extrusion molded article having a hollow portion such as a pipe
Has a structure in which a core metal 25b is fixed inside a mold body 25a for molding the outer peripheral portion.
The molten resin is extruded from an annular gap between a and the core metal 25b. The mold body 2
The heater 22a is mounted also on the outer peripheral portion of 5a and the molding die 25
Is heated and kept warm.
【０００４】そして、例えばパイプの成形製造の場合
は、成形金型２５から連続して押し出される成形品は付
設した水槽で冷却し、引取り機で引出しカッターで所定
の長さに切断する構成となっている。Then, for example, in the case of molding and manufacturing a pipe, a molded product continuously extruded from the molding die 25 is cooled in an attached water tank, and is cut into a predetermined length by a drawing cutter by a take-out machine. Has become.
【０００５】上記説明から明らかなように、溶融樹脂と
直接に接触し圧力を保持して樹脂流を誘導し成形する成
形金型２５の成形表面の平滑さが成形作業性、製品の寸
法精度、表面の平滑性・美観等を決定づけるものであ
る。しかし、成形金型の表面は、圧送される高温の溶融
樹脂による物理的、化学的な影響にさらされ、特に塩化
ビニール成形等で溶融樹脂の流動状態が変化したときに
は樹脂の熱分解とそれに伴う炭化物の流出そして酸性ガ
スが発生し成形金型が急速に汚濁・汚染・酸化腐食され
ることがある。そして一旦、表面に汚濁・汚染・酸化物
が付着すると、加速度的に成形金型表面の汚濁・汚染・
酸化物の付着・汚染が進行することになり製品の品質低
下、作業性の悪化となる。As is apparent from the above description, the smoothness of the molding surface of the molding die 25 that directly contacts the molten resin and holds the pressure to induce the resin flow to mold the molding workability, the dimensional accuracy of the product, It determines the surface smoothness and aesthetics. However, the surface of the molding die is exposed to the physical and chemical effects of the high temperature molten resin that is pumped, and especially when the flow state of the molten resin changes due to vinyl chloride molding etc., the thermal decomposition of the resin and the accompanying Carbide outflow and generation of acid gas may rapidly pollute, contaminate and oxidize the molding die. Once contamination, contamination, or oxide adheres to the surface, the molding die surface's contamination, contamination, or acceleration is accelerated.
Adhesion and contamination of oxides will progress, resulting in poor product quality and poor workability.
【０００６】このため、成形金型に付着する汚濁物、酸
化物等を除去研掃する保守作業は極めて重要であり、従
来は電動バフ機に真ちゆう製のバフを装着して実施し、
隅の部分等、電動バフ機では作業困難な個所はサンドペ
ーパにより実施していた。For this reason, maintenance work for removing and cleaning contaminants, oxides, etc. adhering to the molding die is extremely important. Conventionally, the electric buffing machine was carried out by mounting a buff made by Shinyu,
Sandpaper was used for parts that were difficult to work with an electric buffing machine such as corners.
【０００７】[0007]
【考案が解決しようとする課題】しかしながら、上記従
来の押出し成形金型の研掃方法では、研掃にムラが生じ
やすく、また真ちゅうバフでは成形金型表面のメッキを
損傷するおそれがあり、工数を多く必要とする。またコ
ーナ部分等ではサンドペーパによる手作業となり面倒、
そしてメッキ損傷の危険も増え工数が増加するといった
問題があった。However, in the conventional method for polishing the extrusion molding die described above, unevenness is likely to occur in the polishing, and a brass buff may damage the plating on the surface of the molding die. Need a lot. Also, at the corners, etc., it is troublesome to do it manually with sandpaper.
There is also a problem that the risk of plating damage increases and the number of man-hours increases.
【０００８】金属表面の錆落とし、ペイント落とし等に
広く使用されている砂を研掃材としたブラスト装置によ
る表面処理方法（サンドブラスト）では、金型表面を傷
付ける問題があり、押出し成形金型の研掃に使用された
実績はない。The surface treatment method (sand blasting) using a blasting device using sand as a cleaning agent, which is widely used for removing rust on a metal surface and removing paint, has a problem of damaging the surface of the die, and thus the extrusion molding die It has not been used for blasting.
【０００９】この考案は、上記従来技術の問題点を解消
するためになされたもので、成形金型表面のメッキを損
傷することなく、成形金型に付着した汚濁物、酸化物等
を容易に効率よく除去研掃できる押出し成形金型用研掃
材を提供することを目的とするものである。This invention was made in order to solve the above-mentioned problems of the prior art, and it is easy to remove contaminants, oxides, etc. adhering to the molding die without damaging the plating on the surface of the molding die. It is an object of the present invention to provide a polishing / cleaning material for an extrusion molding die capable of efficiently removing and cleaning.
【００１０】[0010]
【課題を解決するための手段】このため、この考案は、
成形金型に付着した汚濁物、酸化物等をブラスト装置に
より除去研掃し成形機能を回復させる際に使用する押出
し成形金型用研掃材であって、くるみの実を殻皮と共に
潰砕・乾燥させた粒度２５．４ｍｍ当り３０メッシュ程
度の潰砕破砕片状物であることを特徴とし、前記の目的
を達成しようとするものである。SUMMARY OF THE INVENTION For this reason, the present invention provides:
It is a blasting material for extrusion molding dies used to remove the contaminants, oxides, etc. adhering to the dies with a blasting device and restore the molding function. The present invention is characterized in that it is a crushed and crushed piece having a size of about 30 mesh per dried particle size of 25.4 mm, and is intended to achieve the above object.
【００１１】[0011]
【作用】上記考案の押出し成形金型用研掃材は、適度の
凹凸と鋭どさの潰砕破砕断面と、硬い繊維束を表面や内
部に有し、しかも金属や、岩石粒のような高い硬度でも
ないので、ブラスト装置で圧縮空気流に混入して押出し
成形金型に噴射することにより、成形金型表面のメッキ
を損傷することなく、成形金型に付着した汚濁物、酸化
物等を容易に効率よく除去研掃できる。The extruding mold cleaning material of the above invention has moderate irregularities, a crushed and crushed cross section with sharpness, and a hard fiber bundle on the surface and inside, and moreover, such as metal and rock grains. Since it is not of high hardness, it is mixed with compressed air flow by a blast device and injected into the extrusion molding die, so that the contaminants, oxides, etc. adhering to the molding die do not damage the plating on the molding die surface. Can be removed and cleaned easily and efficiently.
【００１２】[0012]
【実施例】以下、この考案に係る押出し成形金型用研掃
材を実施例により説明する。図１は、この考案に係る押
出し成形金型用研掃材を使用して成形金型を研掃するブ
ラスト装置の構成概要を示すブロック図である。EXAMPLES Hereinafter, the abrasive cleaning material for an extrusion molding die according to the present invention will be described by way of examples. FIG. 1 is a block diagram showing an outline of the configuration of a blasting device for polishing and cleaning a molding die using the polishing / cleaning material for an extrusion molding die according to the present invention.
【００１３】１はブラスト装置、２は圧縮空気タンクで
あり空気圧縮機から送られてくる加圧した空気を油分、
水分を除去し一時貯溜しておく。３は研掃材４を貯溜し
ておく研掃材タンク、５は圧縮空気流に研掃材４を混入
させる混合器、６はホース、７は噴射ノズルである。Reference numeral 1 is a blasting device, and 2 is a compressed air tank. The compressed air sent from the air compressor is oil,
Remove water and store temporarily. 3 is a polishing / cleaning material tank for storing the polishing / cleaning material 4, 5 is a mixer for mixing the polishing / cleaning material 4 into a compressed air flow, 6 is a hose, and 7 is an injection nozzle.
【００１４】研掃作業を行うには、まず空気バルブ８を
開き、圧縮空気タンク２の圧縮空気を混合器５、ホース
６を通して噴射ノズル７から噴射させる。次に、混合バ
ルブ９を開き研掃材タンク３内の研掃材４を落下させ混
合器５内の圧縮空気流に吸引混合させ、噴射ノズル７か
ら噴射させる。この研掃材４を混入した空気流を成形金
型の所要個所に打ち当てて付着している汚濁物、酸化物
等を研掃する。To carry out the scouring work, first, the air valve 8 is opened, and the compressed air in the compressed air tank 2 is jetted from the jet nozzle 7 through the mixer 5 and the hose 6. Next, the mixing valve 9 is opened to drop the polishing / cleaning material 4 in the polishing / cleaning material tank 3 so that the compressed air flow in the mixer 5 is sucked and mixed, and the mixture is sprayed from the spray nozzle 7. The air flow mixed with the polishing and cleaning material 4 is struck against a required portion of the molding die to clean and remove adhered contaminants, oxides and the like.
【００１５】図２は、上記ブラスト装置による研掃作業
に使用する本考案に係る押出し成形金型用研掃材４の一
実施例の拡大外観図である。FIG. 2 is an enlarged external view of an embodiment of the polishing / cleaning material 4 for an extrusion molding die according to the present invention, which is used for the polishing / cleaning operation by the blasting device.
【００１６】実施例の研掃材４は、くるみの実を殻皮と
共に潰砕・乾燥させた粒度２５．４ｍｍ当り３０メッシ
ュ程度の潰砕破砕片状物であり、適度の凹凸と鋭どさの
潰砕破砕断面と、硬い繊維束を表面や内部に有してお
り、しかも金属や、岩石粒のような高い硬度でもない。The abrasive cleaning material 4 of the embodiment is a crushed crushed piece having a grain size of about 25.4 mm, which is obtained by crushing and drying walnut with shells, and has a suitable unevenness and sharpness. It has a crushed and crushed cross section and a hard fiber bundle on the surface and inside, and is not as hard as metal or rock grains.
【００１７】この研掃材４を使用して、ブラスト装置に
より押出し成形金型に噴射することにより、成形金型表
面のメッキを損傷することなく、成形金型に付着した汚
濁物、酸化物等を容易に効率よく除去研掃できる。また
コスト的にも有利である。By using the abrasive cleaning material 4 and injecting it into an extrusion molding die by a blasting device, contaminants, oxides, etc. adhering to the molding die can be obtained without damaging the plating on the surface of the molding die. Can be removed and cleaned easily and efficiently. It is also advantageous in terms of cost.
【００１８】なお、実施例の研掃材４、および他の研掃
材、即ち、ポリアセタールビーズ、ポリスチレンビー
ズ、ガラスビーズ、酸化アルミニウムを素材とした各研
掃材を、空気圧力を４．０〜４．５Ｋｇ／平方糎として
ブラストによる除去研掃効果の比較実験を実施した結
果、本実施例の研掃材４が最も除去研掃効果に勝り、一
番短時間に完全に、しかもメッキ面を損傷することなく
実施でき、更に、コストも安くできることが確認でき
た。The polishing / cleaning material 4 of the example and other polishing / cleaning materials, that is, each of the polishing / cleaning materials made of polyacetal beads, polystyrene beads, glass beads, and aluminum oxide were used at an air pressure of 4.0 to 4.0. As a result of carrying out a comparative experiment of the removal and cleaning effect by blasting at 4.5 Kg / square, the cleaning and cleaning material 4 of this example has the best removal and cleaning effect, and the plated surface can be completely removed in the shortest time. It was confirmed that the operation can be performed without damage and the cost can be reduced.
【００１９】[0019]
【考案の効果】以上説明したように、この考案によれ
ば、押出し成形金型用研掃材は、適度の凹凸と鋭どさの
潰砕破砕断面と、硬い繊維束を表面や内部に有し、しか
も金属や、岩石粒のような高い硬度でもないので、ブラ
スト装置で圧縮空気流に混入して押出し成形金型に噴射
することにより、押出し成形金型表面のメッキを損傷す
ることなく、押出し成形金型に付着した汚濁物、酸化物
等を容易に効率よく除去研掃できる。As described above, according to the present invention, the abrasive cleaning material for the extrusion molding die has moderate unevenness, sharp crushing and crushing cross section, and hard fiber bundles on the surface and inside. However, since it is not as hard as metal or rock grains, it is mixed with the compressed air flow in the blast device and injected into the extrusion molding die, without damaging the plating on the extrusion molding die surface. Contaminants, oxides, etc. adhering to the extrusion molding die can be easily and efficiently removed and cleaned.
【００２０】ブラスト装置が利用できることにより、一
度に広範囲をムラなく除去研掃できるだけでなく、従来
方法では困難であった隅の部分にまで研掃材を噴射して
除去研掃することができ、作業効率を大幅に向上でき、
また研掃作業のコストも低減できる。Since the blasting device can be used, it is possible not only to uniformly remove and polish a wide area at a time, but also to remove and polish the abrasive by spraying the abrasive to the corner portion, which was difficult by the conventional method. Can greatly improve work efficiency,
In addition, the cost of the blasting work can be reduced.
【図１】 実施例に使用するブラスト装置のブロック図
である。FIG. 1 is a block diagram of a blasting device used in an embodiment.
【図２】 一実施例の拡大外観図である。FIG. 2 is an enlarged external view of one embodiment.
【図３】 押出し成形機の主要部断面図である。FIG. 3 is a sectional view of a main part of an extrusion molding machine.
【図４】 パイプ製造用の成形金型を装着した要部断面
図である。FIG. 4 is a cross-sectional view of a main part in which a molding die for manufacturing a pipe is mounted.
１ ブラスト装置 ２ 圧縮空気タンク ３ 研掃材タンク ４ 研掃材 ５ 混合器 ７ 噴射ノズル ２１ ホッパ ２２，２２ａ ヒータ ２３ シリンダ ２４ スクリュー ２５ 押出し成形金型 ２５ａ 金型本体 ２６ａ 芯金（コア） ２８ スクリュー 1 Blast Device 2 Compressed Air Tank 3 Abrasive Cleaning Material Tank 4 Abrasive Cleaning Material 5 Mixer 7 Injection Nozzle 21 Hopper 22, 22a Heater 23 Cylinder 24 Screw 25 Extrusion Mold 25a Mold Body 26a Core Bar 28 Screw
Claims (1)
した汚濁物、酸化物等をブラスト装置により除去研掃し
成形機能を回復させる際に使用する押出し成形金型用研
掃材であって、くるみの実を殻皮と共に潰砕・乾燥させ
た粒度２５．４ｍｍ当り３０メッシュ程度の潰砕破砕片
状物であることを特徴とする押出し成形金型用研掃材。1. A polishing and cleaning material for an extrusion molding die, which is used when removing contaminants and oxides attached to a molding die mounted on an extrusion molding machine by a blasting device to restore the molding function. An extruding and polishing material for an extrusion molding die, which is a crushed crushed piece having a particle size of about 25.4 mm, which is obtained by crushing and drying walnut with shells.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5908491U JP2502317Y2 (en) | 1991-07-26 | 1991-07-26 | Abrasive cleaning material for extrusion mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5908491U JP2502317Y2 (en) | 1991-07-26 | 1991-07-26 | Abrasive cleaning material for extrusion mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0512121U JPH0512121U (en) | 1993-02-19 |
| JP2502317Y2 true JP2502317Y2 (en) | 1996-06-19 |
Family
ID=13103126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5908491U Expired - Lifetime JP2502317Y2 (en) | 1991-07-26 | 1991-07-26 | Abrasive cleaning material for extrusion mold |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2502317Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52168025U (en) * | 1976-06-11 | 1977-12-20 |
-
1991
- 1991-07-26 JP JP5908491U patent/JP2502317Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0512121U (en) | 1993-02-19 |
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