JPS62899Y2 - - Google Patents
Info
- Publication number
- JPS62899Y2 JPS62899Y2 JP12501981U JP12501981U JPS62899Y2 JP S62899 Y2 JPS62899 Y2 JP S62899Y2 JP 12501981 U JP12501981 U JP 12501981U JP 12501981 U JP12501981 U JP 12501981U JP S62899 Y2 JPS62899 Y2 JP S62899Y2
- Authority
- JP
- Japan
- Prior art keywords
- synthetic resin
- sheet
- foamed synthetic
- resin sheet
- base material
- 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
- 229920003002 synthetic resin Polymers 0.000 claims description 34
- 239000000057 synthetic resin Substances 0.000 claims description 34
- 239000000463 material Substances 0.000 claims description 25
- 239000012779 reinforcing material Substances 0.000 claims description 19
- 238000000465 moulding Methods 0.000 claims description 14
- 210000000078 claw Anatomy 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920006248 expandable polystyrene Polymers 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- 238000007666 vacuum forming Methods 0.000 description 1
Landscapes
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Advancing Webs (AREA)
- Laminated Bodies (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Description
【考案の詳細な説明】
本考案は食品容器等の製造に用いられる連続成
型用発泡合成樹脂シートに関する。[Detailed Description of the Invention] The present invention relates to a foamed synthetic resin sheet for continuous molding used in the manufacture of food containers and the like.
従来から、合成樹脂シートを用いて食品容器等
の成型品を製造する方法として連続成型法が知ら
れている。該方法を第１図に基いて説明すると、
図中１はロール状に巻回した合成樹脂シート、２
は表面に多数の爪３を備えたシート送りチエー
ン、４は加熱炉、５は成型用金型である。ここに
おいて、合成樹脂シート１の長手方向両端縁付近
はシート送りチエーン２の爪３によつて引掛けら
れ、シート送りチエーン２の回転によりシート１
は図中矢印ａ方向に移送される。このように移送
されたシート１は、まず加熱炉４を通過する際に
加熱軟化され、次に成型用金型５に供給された際
に、圧空成型（もしくは真空成型）によつて成型
され、最後にトリミングされて所望の形状、構造
を有する成型品８が連続的に製造される。上記方
法は非発泡合成樹脂シートおよび発泡倍率の低い
低発泡合成樹脂シートには採用することが可能で
あつたが、発泡倍率の高い高発泡合成樹脂シート
には採用することができなかつた。それは高発泡
合成樹脂シートは強度が小さく、所謂腰が弱く、
且つ剛性が小さいので、シート送りチエーン２の
爪３がシートに引掛かる際に、爪３によつてシー
トが破断され、その結果爪３がシートに噛み合わ
なくなり、シートを図中矢印ａ方向に移送できな
くなるからであつた。そこで従来は高発泡合成樹
脂シートから成型品を製造するに当つては、単一
成型法、即ち所望の寸法に栽断された高発泡合成
樹脂シートを人間が一枚一枚手で成型用金型に送
り込む方法を採用せざるをえなかつたため、極め
て生産効率が悪かつた。 BACKGROUND ART A continuous molding method has conventionally been known as a method for manufacturing molded products such as food containers using synthetic resin sheets. The method will be explained based on FIG.
In the figure, 1 is a synthetic resin sheet wound into a roll, 2
1 is a sheet feeding chain with a large number of claws 3 on its surface, 4 is a heating furnace, and 5 is a mold. Here, the vicinity of both ends in the longitudinal direction of the synthetic resin sheet 1 is hooked by the claws 3 of the sheet feed chain 2, and as the sheet feed chain 2 rotates, the sheet 1
is transported in the direction of arrow a in the figure. The sheet 1 transferred in this way is first heated and softened when passing through the heating furnace 4, and then is formed by pressure forming (or vacuum forming) when supplied to the forming mold 5. Finally, the molded product 8 having the desired shape and structure is continuously manufactured by trimming. Although the above method could be applied to non-foamed synthetic resin sheets and low-foamed synthetic resin sheets with a low expansion ratio, it could not be applied to highly expanded synthetic resin sheets with a high expansion ratio. Highly foamed synthetic resin sheets have low strength and are so-called weak.
In addition, since the rigidity is small, when the pawl 3 of the sheet feed chain 2 catches the sheet, the sheet is broken by the pawl 3, and as a result, the pawl 3 no longer engages with the sheet, and the sheet is transferred in the direction of arrow a in the figure. It was because I wouldn't be able to do it. Conventionally, when manufacturing molded products from highly foamed synthetic resin sheets, a single molding method was used, in which a person manually cut each highly foamed synthetic resin sheet into the desired dimensions using a molding tool. Since the method of feeding the material into the mold had to be adopted, production efficiency was extremely poor.
本考案は上記の欠点を解決するためになされた
もので、連続成型法で成型品を製造することがで
きる連続成型用発泡合成樹脂シートを提供するこ
とを目的とする。 The present invention has been made to solve the above-mentioned drawbacks, and an object of the present invention is to provide a foamed synthetic resin sheet for continuous molding, which allows molded products to be manufactured by a continuous molding method.
即ち、本考案は網体からなるシート送りチエー
ン噛合い用補強材を発泡合成樹脂シート基材に固
着してなることを特徴とする連続成型用発泡合成
樹脂シートを要旨とする。 That is, the gist of the present invention is a foamed synthetic resin sheet for continuous molding, which is characterized in that a reinforcing material for meshing a sheet feed chain made of a mesh is fixed to a foamed synthetic resin sheet base material.
以下、本考案の一実施例を図面に基き説明す
る。第２図及び第３図は本考案による連続成型用
発泡合成樹脂シート６を示したもので、発泡合成
樹脂シート基材６ａのうち少なくともシート送り
チエーン２に当接する部分、即ち該基材６ａの長
手方向の両端部分面には、長手方向に沿つて網体
からなるシート送りチエーン噛合い用補強材７が
固着されている。第２図に、上記補強材７を発泡
合成樹脂シート基材６ａのシート送りチエーン当
接部に固着した態様を示す。該補強材７の網目形
状は縦横に規則正しく組んだ網目でもよく、ある
いは無秩序に組んだ網目でもよい。要するにシー
ト送りチエーン２の爪３に確実に引掛かり、又は
噛合う網目形状であればいかなる形状も妥当す
る。網体のメツシユの大きさは５mm程度が好まし
い。 Hereinafter, one embodiment of the present invention will be described based on the drawings. 2 and 3 show a foamed synthetic resin sheet 6 for continuous molding according to the present invention, in which at least the portion of the foamed synthetic resin sheet base material 6a that contacts the sheet feeding chain 2, that is, the portion of the base material 6a. A reinforcing member 7 for meshing the sheet feeding chain made of a mesh body is fixed along the longitudinal direction to both end portions in the longitudinal direction. FIG. 2 shows an embodiment in which the reinforcing material 7 is fixed to the sheet feeding chain contact portion of the foamed synthetic resin sheet base material 6a. The mesh shape of the reinforcing material 7 may be regularly arranged in the vertical and horizontal directions, or may be arranged randomly. In short, any mesh shape is suitable as long as it reliably catches or meshes with the claws 3 of the sheet feeding chain 2. The mesh size of the net body is preferably about 5 mm.
シート送りチエーン噛合い用補強材７の材質
は、シート送りチエーン２の爪が引掛かり、水平
方向の力が加わつた時に、網目形状が崩れたり、
破断しない程度の強度を有する材質であればいか
なるものでもよい。この材質として例えば金属、
合成樹脂等を用いることができる。又、発泡合成
樹脂シート基材６ａとして例えば発泡ポリエチレ
ン、発泡ポリスチレン、発泡ポリプロピレン等が
例示される。本考案は前記基材６ａとして高発泡
体樹脂を用いる場合特に有益であり、更には高発
泡体樹脂のうちでも発泡倍率１倍以上のものの場
合に特に有益である。尚、本考案は前記基材６ａ
が高発泡体樹脂である場合に限定される訳ではな
く、それが低発泡体樹脂である場合も同様に実施
できるものである。 The material of the reinforcing material 7 for sheet feeding chain meshing is such that when the claws of the sheet feeding chain 2 are caught and a horizontal force is applied, the mesh shape may collapse.
Any material may be used as long as it has enough strength to not break. Examples of this material include metal,
Synthetic resin etc. can be used. Examples of the foamed synthetic resin sheet base material 6a include foamed polyethylene, foamed polystyrene, and foamed polypropylene. The present invention is particularly useful when a highly foamed resin is used as the base material 6a, and more particularly when the foaming ratio is 1 times or more among the highly foamed resins. Note that the present invention is based on the base material 6a.
The present invention is not limited to the case where the resin is a highly foamed resin, but can be implemented in the same manner even when it is a low foamed resin.
補強材７と発泡合成樹脂シート基材６ａとは、
熱融着あるいは接着剤による接着等で固着され
る。 The reinforcing material 7 and the foamed synthetic resin sheet base material 6a are
It is fixed by heat fusion or adhesive bonding.
本考案の他の実施例として第４図に示すよう
に、発泡合成樹脂シート基材６ａの裏面全面にシ
ート送りチエーン噛合い用補強材７を固着するこ
とも可能である。この場合、該補強材７として
は、シート送りチエーン２の爪３によつて補強材
７の網目形状が崩れたり、破断しない程度の強度
を有すると共に、成型品を型取る時に、シート基
材６ａと共に変形することが可能なように、適度
の柔軟性を有する必要がある。上記の如き構成か
らなるシート６を用いた場合は、補強材７を有す
る成型品が得られることになるので、この補強材
７による補強効果を有する成型品が得られる。
尚、第２図、第４図に示す各実施例において、補
強材７側にシート送りチエーンの爪３を当接して
も、或いは基材６ａ側に爪３を当接してもいずれ
でもよい。 As another embodiment of the present invention, as shown in FIG. 4, it is also possible to fix a reinforcing material 7 for sheet feed chain engagement to the entire back surface of a foamed synthetic resin sheet base material 6a. In this case, the reinforcing material 7 has enough strength to prevent the mesh shape of the reinforcing material 7 from collapsing or breaking due to the pawls 3 of the sheet feeding chain 2, and the sheet base 6a when molding the molded product. It needs to have appropriate flexibility so that it can be deformed. When the sheet 6 having the above-mentioned structure is used, a molded product having the reinforcing material 7 can be obtained, so that a molded product having the reinforcing effect of the reinforcing material 7 can be obtained.
In each of the embodiments shown in FIGS. 2 and 4, the claws 3 of the sheet feeding chain may be brought into contact with the reinforcing member 7 side, or the claws 3 may be brought into contact with the base material 6a side.
第５図は本考案の他の実施例を示すもので、二
枚の発泡合成樹脂シート基材６ａの間にシート送
りチエーン噛合い用補強材７を固着したものであ
る。これは第４図と同様シート基材６ａの全面に
固着してもよく、或いは第２図と同様、長手方向
両端部分面に固着してもよい。この場合、シート
６の表面上に補強材７が露出しないので外観上好
都合である。 FIG. 5 shows another embodiment of the present invention, in which a reinforcing material 7 for sheet feed chain engagement is fixed between two foamed synthetic resin sheet base materials 6a. This may be fixed to the entire surface of the sheet base material 6a as in FIG. 4, or it may be fixed to both end portions in the longitudinal direction as in FIG. In this case, the reinforcing material 7 is not exposed on the surface of the sheet 6, which is convenient in terms of appearance.
上記の如く構成される本考案発泡合成樹脂シー
ト６を用いて第１図に示すように連続成型を行な
つた場合、シート送りチエーン２の爪３が直接補
強材７に引掛かる（補強材７と爪３を当接させた
場合）か、或いは爪３が基材６ａ中に入り込んで
補強材７に引掛かる（基材６ａと爪３を当接させ
た場合）。この時爪３が補強材７の網目に噛み合
うか、もしくは網目を引掛けるために、シート６
を破断することなく、確実に矢印ａ方向に移送す
ることができる。 When the foamed synthetic resin sheet 6 of the present invention constructed as described above is continuously molded as shown in FIG. (when the claws 3 are brought into contact with each other), or the claws 3 penetrate into the base material 6a and are caught on the reinforcing material 7 (when the base material 6a and the claws 3 are brought into contact with each other). At this time, in order for the claws 3 to engage with the mesh of the reinforcing material 7 or to hook the mesh, the sheet 6
It is possible to reliably transfer the material in the direction of arrow a without breaking the material.
以上説明したように本考案は網体からなるシー
ト送りチエーン噛合い用補強材を発泡合成樹脂シ
ート基材の少なくともシート送りチエーン当接部
に固着したので、本考案シートを連続成型装置に
適用したとき、シート送りチエーンの爪が補強材
の網目に噛み合うか、もしくは網目を引掛けるの
で、シートの移送を確実に行なうことができる。
従つて本考案シートによれば高発泡合成樹脂シー
トであつても連続成型法を採用することが可能と
なり、生産効率を著しく高めることができる効果
がある。 As explained above, in the present invention, the reinforcing material for meshing the sheet feeding chain made of a mesh is fixed to at least the contact portion of the sheet feeding chain of the foamed synthetic resin sheet base material, so the sheet of the invention can be applied to continuous molding equipment. At this time, the claws of the sheet feeding chain engage or catch the mesh of the reinforcing material, so that the sheet can be transported reliably.
Therefore, according to the sheet of the present invention, it is possible to employ a continuous molding method even for a highly foamed synthetic resin sheet, which has the effect of significantly increasing production efficiency.
図面は本考案の実施例を示すもので、第１図は
連続成型法を示す概略図、第２図は本考案の一実
施例である発泡合成樹脂シートの裏面図、第３図
は第２図の−線に沿う縦断面図、第４図は本
考案の他の実施例を示す一部切欠裏面図、第５図
は本考案の他の実施例を示す縦断面図である。
２……シート送りチエーン、６……発泡合成樹
脂シート、６ａ……発泡合成樹脂シート基材、７
……シート送りチエーン噛合い用補強材。
The drawings show an embodiment of the present invention. Fig. 1 is a schematic diagram showing a continuous molding method, Fig. 2 is a back view of a foamed synthetic resin sheet that is an embodiment of the invention, and Fig. 3 is a diagram showing a second embodiment of the invention. 4 is a partially cutaway back view showing another embodiment of the present invention, and FIG. 5 is a longitudinal sectional view showing another embodiment of the present invention. 2... Sheet feeding chain, 6... Foamed synthetic resin sheet, 6a... Foamed synthetic resin sheet base material, 7
...Reinforcing material for sheet feed chain engagement.
Claims (1)
強材を有する発泡合成樹脂シートであつて該補
強材が発泡合成樹脂シート基材の少なくともシ
ート送りチエーン当接部に固着されていること
を特徴とする連続成型用発泡合成樹脂シート。 (2) 発泡合成樹脂シート基材は発泡倍率の高い高
発泡合成樹脂シート基材である実用新案登録請
求の範囲第１項記載の連続成型用発泡合成樹脂
シート。[Scope of Claim for Utility Model Registration] (1) A foamed synthetic resin sheet having a reinforcing material for meshing with a sheet feeding chain made of a mesh, the reinforcing material being a foamed synthetic resin sheet that is attached to at least the contact portion of the sheet feeding chain of the foamed synthetic resin sheet base material. A foamed synthetic resin sheet for continuous molding, characterized by being fixed to. (2) The foamed synthetic resin sheet for continuous molding according to claim 1, wherein the foamed synthetic resin sheet base material is a highly foamed synthetic resin sheet base material with a high expansion ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12501981U JPS5831130U (en) | 1981-08-24 | 1981-08-24 | Foamed synthetic resin sheet for continuous molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12501981U JPS5831130U (en) | 1981-08-24 | 1981-08-24 | Foamed synthetic resin sheet for continuous molding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5831130U JPS5831130U (en) | 1983-03-01 |
| JPS62899Y2 true JPS62899Y2 (en) | 1987-01-10 |
Family
ID=29918862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12501981U Granted JPS5831130U (en) | 1981-08-24 | 1981-08-24 | Foamed synthetic resin sheet for continuous molding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5831130U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0338197Y2 (en) * | 1984-11-16 | 1991-08-13 |
-
1981
- 1981-08-24 JP JP12501981U patent/JPS5831130U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5831130U (en) | 1983-03-01 |
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