JPH045535B2 - - Google Patents
Info
- Publication number
- JPH045535B2 JPH045535B2 JP20368185A JP20368185A JPH045535B2 JP H045535 B2 JPH045535 B2 JP H045535B2 JP 20368185 A JP20368185 A JP 20368185A JP 20368185 A JP20368185 A JP 20368185A JP H045535 B2 JPH045535 B2 JP H045535B2
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- synthetic resin
- heater
- thermoplastic synthetic
- resin
- 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
Links
- 229920005989 resin Polymers 0.000 claims description 14
- 239000011347 resin Substances 0.000 claims description 14
- 229920003002 synthetic resin Polymers 0.000 claims description 14
- 239000000057 synthetic resin Substances 0.000 claims description 14
- 229920001169 thermoplastic Polymers 0.000 claims description 11
- 239000004416 thermosoftening plastic Substances 0.000 claims description 11
- 238000005266 casting Methods 0.000 claims description 10
- 239000006260 foam Substances 0.000 claims description 9
- 238000002844 melting Methods 0.000 claims description 9
- 230000008018 melting Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- 239000004793 Polystyrene Substances 0.000 claims description 6
- -1 polyethylene Polymers 0.000 claims description 6
- 229920002223 polystyrene Polymers 0.000 claims description 6
- 238000010097 foam moulding Methods 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 238000003672 processing method Methods 0.000 claims 2
- 239000000123 paper Substances 0.000 claims 1
- 239000002985 plastic film Substances 0.000 claims 1
- 238000000465 moulding Methods 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000004806 packaging method and process Methods 0.000 description 3
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920005672 polyolefin resin Polymers 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 229920006328 Styrofoam Polymers 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920006327 polystyrene foam Polymers 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 239000008261 styrofoam Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Description
【発明の詳細な説明】
「産業上の利用分野」
本発明は熱可塑性樹脂発泡成形体の加工方法に
関し、更に詳しくは鋳込みヒーターを用いた新規
な熱可塑性合成樹脂発泡性成体の加工方法に関す
るものである。[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a method for processing a thermoplastic resin foam molded product, and more particularly to a method for processing a novel thermoplastic synthetic resin foam molding using a casting heater. It is.
「従来技術と問題点」
従来、弱電、精密機器やこれらの部品等の通
函、包装容器等はキヤビテイ金型とコア金型との
間の型窩内にポリスチレン等の発泡性合成樹脂粒
子を充填し、スチーム等により加熱発泡させる
か、発泡成形体ボードに所定の形状を繰り抜き加
工し、次いで別の発泡成形体ボードに粘着する方
法が採用されている。"Prior Art and Problems" Conventionally, for shipping boxes and packaging containers for light electrical appliances, precision equipment, and their parts, particles of foamable synthetic resin such as polystyrene were placed in the mold cavity between the cavity mold and the core mold. The method of filling the foam and heating and foaming it with steam or the like, or cutting out a predetermined shape from a foam molded board, and then adhering it to another foam board is adopted.
しかるに、前者の金型成形方法による場合は設
備が大規模となり、従つて設備費も高価となり、
多品種少量の需要を満たすには不適当である。ま
た後者の方法は作業が煩雑で大量生産に適さず、
従つて比較的コストアツプとならざるを得ない。
また有機溶剤系の接着剤を使用するため、人体に
有害である多火災や爆発の危険がある。 However, if the former molding method is used, the equipment will be large-scale and the equipment cost will be expensive.
It is unsuitable to meet the demand for a wide variety of products in small quantities. In addition, the latter method is complicated and not suitable for mass production.
Therefore, the cost has to be relatively high.
Furthermore, since organic solvent-based adhesives are used, there is a risk of fire and explosion, which are harmful to the human body.
一方、比較的薄物の場合にあつては、近年、鋳
込みヒーターを用いて製造する方法が提案されて
いる。 On the other hand, in the case of relatively thin products, a manufacturing method using a casting heater has been proposed in recent years.
しかし乍ら、ポリスチレンやポリエチレン等の
熱可塑性発泡成形体から鋳込みヒーターにより通
函や包装容器等を製造する場合、先づ第１に、鋳
込みヒーターに樹脂が付着するという問題があ
る。通常、鋳込みヒーターの表面は「テフロン」
（登録商標）等フツソ系樹脂等の離型剤加工処理
が施されているが、繰り返し成形している中に
段々樹脂が付着し、定期的に清掃が不可欠であ
り、生産効率を著しく低下させる結果となつてい
る。第２に、成形表面に硬い溶融樹脂層が形成さ
れ、このため折角暖衝作用に優れた発泡合成樹脂
を素材として用いても、肝心の精密機器やパーツ
（部品）を収容した容器内表面が硬化した状態で
は十分な衝撃からの保護作用は期待できず、輸送
中に被収容物を損傷させる憾みがある。 However, when manufacturing boxes, packaging containers, etc. from thermoplastic foam molded products such as polystyrene and polyethylene using cast heaters, the first problem is that resin adheres to the cast heaters. The surface of cast-in heaters is usually Teflon.
(registered trademark) etc., but the resin gradually adheres during repeated molding, and regular cleaning is essential, which significantly reduces production efficiency. This is the result. Secondly, a hard molten resin layer is formed on the molding surface, so even if foamed synthetic resin with excellent warming effect is used as a material, the inner surface of the container housing the important precision instruments and parts will be damaged. In the hardened state, sufficient protection against impact cannot be expected, and there is a risk of damaging the stored items during transportation.
「問題点を解決するための手段」
本発明はかかる実情に鑑み上記問題点を解決す
べく鋭意研究の結果、本発明に到達したものであ
る。"Means for Solving the Problems" In view of the above circumstances, the present invention was achieved as a result of intensive research to solve the above problems.
即ち、本発明は熱可塑性合成樹脂発泡成形体の
表面に該樹脂の溶融温度よりも高い融点を有する
シートを接設し、次いで、所定の形状の鋳込みヒ
ーターを該樹脂の溶融温度以上に加熱して該シー
ト上から押圧することにより、前記鋳込みヒータ
ーの形状の凹部を成形させ、しかる後に該シート
を剥離除去することを特徴とする熱可塑性合成樹
脂発泡成形体の加工方法を内容とするものであ
る。 That is, in the present invention, a sheet having a melting point higher than the melting temperature of the resin is attached to the surface of a thermoplastic synthetic resin foam molded article, and then a casting heater having a predetermined shape is heated to a temperature higher than the melting temperature of the resin. A method for processing a thermoplastic synthetic resin foam molded article, characterized in that a concave portion in the shape of the cast heater is formed by pressing from above the sheet, and then the sheet is peeled off and removed. be.
本発明に用いられる熱可塑性合成樹脂発泡成形
体としては、ポリスチレン、ポリエチレンやポリ
プロピレン等のオレフイン樹脂等が好適である。
オレフイン樹脂は、架橋無架橋のいずれでも良
い。 As the thermoplastic synthetic resin foam molding used in the present invention, olefin resins such as polystyrene, polyethylene, and polypropylene are suitable.
The olefin resin may be crosslinked or non-crosslinked.
本発明に用いられる鋳込みヒーターはアルミ、
鋳鉄、真鍮等を鋳込んだヒータが用いられ、その
形状は所望の形状のもので良い。 The cast-in heater used in the present invention is aluminum,
A heater made of cast iron, brass, or the like is used, and its shape may be any desired shape.
本発明に用いられるシートは熱可塑性合成樹脂
の溶融温度よりも高い融点を有するものであれば
特に制限はないが、薄用紙、京花紙、テイツシユ
ペーパー等の紙、綿、絹、合繊、ガーゼ等の布、
塩ビ、ポリエステル等の合成樹脂フイルム、ポリ
スチレンやポリウレタン等のプラスチツクペーパ
ー等が例示される。 The sheet used in the present invention is not particularly limited as long as it has a melting point higher than the melting temperature of the thermoplastic synthetic resin; Cloth such as gauze,
Examples include synthetic resin films such as vinyl chloride and polyester, and plastic papers such as polystyrene and polyurethane.
本発明において、熱可塑性合成樹脂発泡成形体
のボードやブロツクに先づ上記シートを配置し、
所望の形状の鋳込みヒーターを樹脂の溶融温度以
上に加熱して該シートの上から、押圧する。鋳込
みヒーターの自重により沈降させても良いが、適
度のスピードで押圧しても良い。押圧スピードは
樹脂の種類、発泡倍率、鋳込みヒーターの温度等
に左右され、これらを勘案して適宜決定される。 In the present invention, the sheet is placed before the board or block of the thermoplastic synthetic resin foam molding,
A casting heater of a desired shape is heated to a temperature higher than the melting temperature of the resin and pressed onto the sheet. It may be settled by the weight of the casting heater, or it may be pressed at an appropriate speed. The pressing speed depends on the type of resin, the expansion ratio, the temperature of the casting heater, etc., and is appropriately determined in consideration of these factors.
成形が終了すると、鋳込みヒーターを取り去
り、次いでシートを剥離除去する。成形表面の溶
融樹脂層はシートに付着して、シートと共に剥離
除去され、熱可塑性合成樹脂発泡成形体の層が現
れる。シートの除去は成形表面の熱いうちに、又
は冷却後のいずれでも良いが、成形表面が熱いう
ちに剥離除去するのが望ましい。もつとも、シー
トは必要に応じ成形表面に残すことも可能であ
る。例えばシートが合成樹脂フイルムの場合は、
該シートを残すことにより防水性やガスバリヤー
性を付与することができるし、またシートがポリ
スチレンペーパーやポリウレタンフオームのペー
パーの場合は適度のクツシヨン性を付与すること
ができる。 When the molding is completed, the cast heater is removed and the sheet is then peeled off. The molten resin layer on the molding surface adheres to the sheet and is peeled off together with the sheet to reveal a layer of thermoplastic synthetic resin foam molding. The sheet may be removed while the molding surface is still hot or after it has cooled, but it is preferable to peel and remove the sheet while the molding surface is still hot. However, the sheet can be left on the molding surface if desired. For example, if the sheet is a synthetic resin film,
By leaving the sheet, waterproof and gas barrier properties can be imparted, and when the sheet is polystyrene paper or polyurethane foam paper, appropriate cushioning properties can be imparted.
鋳込みヒーターは通常所望の加工サイズ（長さ
×巾×深さ）よりも２〜３mm程小さくすることに
より、所望の加工サイズの目的物を得ることがで
きる。 By making the casting heater generally 2 to 3 mm smaller than the desired processing size (length x width x depth), it is possible to obtain an object of the desired processing size.
本発明は成形深さが約100mm程度までの比較的
薄型成形品に好適で、通函や包装容器等の他に、
風呂すのこや台所用マツト等の表面エンボス加工
やキヤラクター等の貼着等にも応用可能である。 The present invention is suitable for relatively thin molded products with a molding depth of up to about 100 mm, and is suitable for use in mailing boxes, packaging containers, etc.
It can also be applied to embossing the surfaces of bath grates, kitchen mats, etc., and attaching characters, etc.
「実施例」
以下、本発明を実施例を挙げて説明するが本発
明はこれらにより何ら制限されることはない。"Examples" The present invention will be described below with reference to Examples, but the present invention is not limited by these in any way.
実施例 １
ポリスチレンフオーム「スタイロフオーム」
（発泡倍率50倍、旭化成製）のボードに薄用紙
（丸林製紙製）を当接し、長さ197mm×巾98mm×厚
さ48mmの鋳込みヒーターを約80℃に加熱して、前
記薄用紙の上から約25秒かけて押圧した。Example 1 Polystyrene foam “Styrofoam”
A thin paper (manufactured by Marubayashi Paper Industries) is placed in contact with a board made of (foaming magnification 50 times, manufactured by Asahi Kasei), and a cast-in heater measuring 197 mm in length x 98 mm in width x 48 mm in thickness is heated to approximately 80°C. It took about 25 seconds to press the button.
次いで、鋳込みヒーターを取り除いた後、直ち
に薄用紙を剥離剤除去した。溶融樹脂は薄用紙に
付着して薄用紙と共に剥離除去され、略長さ200
mm×巾100mm×深さ50mmの容器が得られた。 Next, after removing the cast-in heater, the release agent was immediately removed from the thin paper. The molten resin adheres to the thin paper and is peeled off together with the thin paper, leaving approximately 200 mm in length.
A container measuring mm x width 100 mm x depth 50 mm was obtained.
実施例 ２
ポリプロピレンフオーム「ピーブロツク」（発
泡倍率45倍、日本スチレンペーパー製）のボード
に実施例で用いた薄用紙を当接し、実施例１と同
じ鋳込ヒーターを約88℃に加熱し、約30秒かけて
押圧した。Example 2 The thin paper used in the example was brought into contact with a board of polypropylene foam "Pee Block" (expansion ratio 45 times, made by Nippon Styrene Paper), heated to approximately 88°C using the same casting heater as in Example 1, and heated to approximately 88°C. It was pressed for 30 seconds.
ついで鋳込みヒーターを取り除き成形表面を冷
却した後、薄用紙を剥離除去した。成形表面の溶
融樹脂層は薄用紙と共に剥離除去され、略長さ
200mm×巾100mm×深さ50mmの容器が得られた。 Next, the casting heater was removed to cool the molding surface, and then the thin paper was peeled off. The molten resin layer on the molding surface is peeled off together with the thin paper, and the approximately length
A container measuring 200 mm x width 100 mm x depth 50 mm was obtained.
「作用・効果」
叔上の通り、本発明は設備が簡単で低コスト
である、多品種少量生産に好適である、あら
ゆる発泡プラスチツクに適用できる、成形表面
は溶融硬化樹脂層ではなく、発泡樹脂層であるか
ら緩衝能力の低下はなく、収容物は十分に保護さ
れる、等数多くの利点を有し、その有用性は極め
て大である。"Operations and Effects" As mentioned above, the present invention has simple equipment and low cost, is suitable for high-mix, low-volume production, and can be applied to all foamed plastics.The molding surface is not a molten hardened resin layer but a foamed resin layer. Since it is a layer, there is no reduction in buffering capacity, and the stored contents are sufficiently protected, etc., and it has many advantages, and its usefulness is extremely large.
Claims (1)
の溶融温度よりも高い融点を有するシートを接続
し、次いで、所定の形状の鋳込みヒーターを該樹
脂の溶融温度以上に加熱して該シート上から押圧
することにより、前記鋳込みヒーターの形状の凹
部を成形させ、しかる後に該シートを剥離除去す
ることを特徴とする熱可塑性合成樹脂発泡成形体
の加工方法。 ２ シートが紙、布およびプラスチツクシートか
ら選ばれる特許請求の範囲第１項記載の加工方
法。 ３ 熱可塑性合成樹脂がポリスチレン、ポリエチ
レン、ポリプロピレンおよびポリウレタンから選
ばれる特許請求の範囲第１項記載の加工方法。[Claims] 1. A sheet having a melting point higher than the melting temperature of the resin is connected to the surface of the thermoplastic synthetic resin foam molding, and then a casting heater of a predetermined shape is heated to a temperature higher than the melting temperature of the resin. 1. A method for processing a thermoplastic synthetic resin foam molded article, comprising: forming a concave portion in the shape of the cast heater by pressing from above the sheet, and then peeling and removing the sheet. 2. The processing method according to claim 1, wherein the sheet is selected from paper, cloth and plastic sheets. 3. The processing method according to claim 1, wherein the thermoplastic synthetic resin is selected from polystyrene, polyethylene, polypropylene, and polyurethane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20368185A JPS6262725A (en) | 1985-09-13 | 1985-09-13 | Processing of thermoplastic synthetic resin expansion-molded body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20368185A JPS6262725A (en) | 1985-09-13 | 1985-09-13 | Processing of thermoplastic synthetic resin expansion-molded body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6262725A JPS6262725A (en) | 1987-03-19 |
| JPH045535B2 true JPH045535B2 (en) | 1992-01-31 |
Family
ID=16478078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20368185A Granted JPS6262725A (en) | 1985-09-13 | 1985-09-13 | Processing of thermoplastic synthetic resin expansion-molded body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6262725A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62151324A (en) * | 1985-12-26 | 1987-07-06 | Ishizuka Kk | Manufacture of packing |
| US5116881A (en) * | 1990-03-14 | 1992-05-26 | James River Corporation Of Virginia | Polypropylene foam sheets |
| JP4709045B2 (en) * | 2006-03-27 | 2011-06-22 | 三菱電機株式会社 | Armature manufacturing method |
-
1985
- 1985-09-13 JP JP20368185A patent/JPS6262725A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6262725A (en) | 1987-03-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2437221A1 (en) | Processes for forming plastic, apparatuses for forming plastic, and articles made therefrom | |
| CA2084030A1 (en) | Process for Preparing Composite Foamed Molded Article | |
| JPS5597917A (en) | Device for molding plastic | |
| EP1160274A4 (en) | Pre-expanded particles of crystalline aromatic polyester-based resin, and in-mold expanded product and expanded laminate using the same | |
| JPH045535B2 (en) | ||
| US3950462A (en) | Method for making a resilient storage insert | |
| US4342716A (en) | Method and apparatus for molding indicia in roto-molded plastic containers | |
| JPS6144049B2 (en) | ||
| JP2007098607A (en) | Foamed resin molding with skin sheet and its production method | |
| ES473852A1 (en) | Apparatus and Process for Moulding Thin-Walled Objects in Expanded Plastics Material | |
| JPS55109632A (en) | Foam-shaping mold | |
| JPH0741663B2 (en) | Method of molding thermoplastic material | |
| JPS5630809A (en) | Biaxially oriented platelike molding and molding method thereof | |
| US20230303302A1 (en) | Polylactic acid-based custom product packaging and associated methods | |
| JPS6092814A (en) | Manufacture of molded item with expanding layer | |
| JP2005022374A (en) | In-mold-labeled foam molding with rugged pattern | |
| WO1999001270A1 (en) | Method of casting and producing ath filled acrylic or polymethacrylate based molded articles by using protecting polyethylene foil in the mold | |
| JPH04316834A (en) | Foamed molded product having improved surface appearance | |
| JPS5658824A (en) | Insertion of decorative member | |
| JPH06293099A (en) | Heat insulating pad material and production thereof | |
| JPS55133922A (en) | Adhering method of outmost layer for polypropylene composite resin | |
| JPS55117542A (en) | Shaping method of mold | |
| JPH0929850A (en) | Surface hardening method for foamed plastic molding | |
| JPH0753412B2 (en) | Method for press-forming synthetic resin sheet and apparatus therefor | |
| JPH072265U (en) | Skin pack packaging |