JPH0431493B2 - - Google Patents
Info
- Publication number
- JPH0431493B2 JPH0431493B2 JP21749786A JP21749786A JPH0431493B2 JP H0431493 B2 JPH0431493 B2 JP H0431493B2 JP 21749786 A JP21749786 A JP 21749786A JP 21749786 A JP21749786 A JP 21749786A JP H0431493 B2 JPH0431493 B2 JP H0431493B2
- Authority
- JP
- Japan
- Prior art keywords
- heat
- shrinkable
- sheet material
- layer sheet
- roll
- 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
- 239000000463 material Substances 0.000 claims description 56
- 239000010410 layer Substances 0.000 claims description 36
- 238000001816 cooling Methods 0.000 claims description 21
- 238000010438 heat treatment Methods 0.000 claims description 19
- 239000012790 adhesive layer Substances 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 239000012793 heat-sealing layer Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- -1 for example Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 229920003020 cross-linked polyethylene Polymers 0.000 description 1
- 239000004703 cross-linked polyethylene Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
Landscapes
- Laminated Bodies (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Cable Accessories (AREA)
Description
【発明の詳細な説明】
「産業上の利用分野」
本発明は、熱収縮層に連続的に熱融着層をラミ
ネートする熱収縮層シートの製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION "Industrial Application Field" The present invention relates to a method for producing a heat-shrinkable layer sheet, in which a heat-sealable layer is continuously laminated onto a heat-shrinkable layer.
「従来の技術」
一般に、電気、通信ケーブル等の接続部を密封
して外気から保護するために、第４図に示すよう
な熱収縮性シートが使用されている。この熱収縮
性シート１は、幅方向〔図中イ−ロの方向〕に熱
収縮可能な熱収縮層２と、この熱収縮層２の内面
に設けられた熱融着層３とから構成されており、
第５図に示すように、ケーブル４，４の接続部５
に巻き付けて熱融着層３の両側縁部を互いに突き
あわせ、かつこの両側縁部を押圧用ロツド６，６
等を介してクリツプ７，７…等で挟んで固定し、
加熱収縮させることによつて上記接続部５を密封
するものである。``Prior Art'' In general, a heat-shrinkable sheet as shown in FIG. 4 is used to seal the connections of electrical and communication cables and protect them from the outside air. This heat-shrinkable sheet 1 is composed of a heat-shrinkable layer 2 that can be heat-shrinkable in the width direction (in the direction indicated by E-B in the figure), and a heat-sealable layer 3 provided on the inner surface of this heat-shrinkable layer 2. and
As shown in FIG.
The both edges of the heat-sealing layer 3 are abutted against each other, and the both edges are pressed with pressing rods 6, 6.
etc., and clamp and fix it with clips 7, 7, etc.
The connection portion 5 is sealed by heating and shrinking.
「発明が解決しようとする問題点」
ところで、このような熱収縮性シート１を製造
する方法としては、例えば、金型内で架橋層を成
型し、さらにこの架橋層に熱融着層を重ね合わせ
て成型したモールドを延伸して熱収縮性シート１
を得る方法、あるいは延伸された熱収縮層２に熱
融着層３を、接続剤を塗布することによつて貼合
わせて熱収縮層シート１を得る方法等がある。し
かしながら、上記従来の各方法にあつては、短尺
の熱収縮性シート１を１枚１枚製造するバツチ方
式であるため、連続生産ができないという問題点
がある。"Problems to be Solved by the Invention" By the way, as a method for manufacturing such a heat-shrinkable sheet 1, for example, a cross-linked layer is molded in a mold, and a heat-sealing layer is further layered on this cross-linked layer. Heat-shrinkable sheet 1 is made by stretching the molds formed together.
Alternatively, the heat-shrinkable layer sheet 1 can be obtained by bonding the heat-sealable layer 3 to the stretched heat-shrinkable layer 2 by applying a connecting agent. However, each of the above-mentioned conventional methods has the problem that continuous production is not possible because the short heat-shrinkable sheets 1 are manufactured one by one in batches.
本発明は、上記事情に鑑みてなされたもので、
その目的とするところは、熱収縮層シート材に連
続して熱融着樹脂をラミネートでき、極めて生産
性が高い熱収縮性シートの製造方法を提供するこ
とにある。 The present invention was made in view of the above circumstances, and
The purpose is to provide a method for manufacturing a heat-shrinkable sheet that can continuously laminate a heat-sealing resin onto a heat-shrinkable layer sheet material and has extremely high productivity.
「問題点を解決するための手段」
上記目的を達成するために、本発明は、互いに
対向配置された冷却ロールと加熱ロールとの間
に、延伸された熱収縮層シート材と熱融着層シー
ト材とを挟み込んで、冷却ロールで熱収縮層シー
ト材を冷却し、かつ加熱ロールで熱融着層シート
材を加熱すると共に、上記両ロール両シート材を
重ね合わせて加圧しながら連続搬送して融着する
ものである。"Means for Solving the Problems" In order to achieve the above object, the present invention provides a stretched heat shrink layer sheet material and a heat sealing layer between a cooling roll and a heating roll that are arranged opposite to each other. The heat-shrinkable layer sheet material is cooled with a cooling roll, and the heat-adhesive layer sheet material is heated with a heating roll, and the above-mentioned rolls and both sheet materials are overlapped and continuously conveyed while being pressurized. It is fused together.
「作用」
本発明の熱収縮性シートの製造方法にあつて
は、延伸された熱収縮性シート材を冷却ロールで
冷却し、かつ熱融着層シート材を加熱ロールで加
熱することによつて、熱収縮性シート材の収縮を
防止しながら両シート材を確実に融着させること
ができると共に、両シート材を重ね合わせて加圧
しながら連続搬送することによつて、熱収縮性シ
ートを連続的にかつ円滑に製造できる。"Operation" In the method for producing a heat-shrinkable sheet of the present invention, the stretched heat-shrinkable sheet material is cooled with a cooling roll, and the heat-adhesive layer sheet material is heated with a heating roll. , it is possible to reliably fuse both sheet materials while preventing shrinkage of the heat-shrinkable sheet material, and by overlapping both sheet materials and continuously conveying them while applying pressure, the heat-shrinkable sheet material can be continuously fused. It can be manufactured efficiently and smoothly.
「実施例」
以下、第１図と第２図に基づいて本発明の第１
実施例を説明する。"Example" Hereinafter, based on FIG. 1 and FIG. 2, the first embodiment of the present invention will be explained.
An example will be explained.
第１図と第２図は、本発明を実施するために適
用される熱収縮性シートの製造装置の一例を示す
ものである。この製造装置１０は、ほぼ同径の冷
却ロール１１と加熱ロール１２とが、これら両ロ
ール１１，１２の軸線を互いに平行に位置させて
上下に配設され、かつ上記両ロール１１，１２の
下流側（第１図において右側）に、エアーあるい
は水等を使用する上下一対の冷却装置１３，１３
が配置され、また上記加熱ロール１２の下方に圧
着ロール１４が、加熱ロール１２に平行な状態で
設置された基本構成とされている。 FIGS. 1 and 2 show an example of a heat-shrinkable sheet manufacturing apparatus applied to carry out the present invention. This manufacturing apparatus 10 includes a cooling roll 11 and a heating roll 12 having approximately the same diameter, which are arranged one above the other with the axes of the rolls 11 and 12 being positioned parallel to each other, and downstream of the rolls 11 and 12. On the side (right side in Figure 1), there is a pair of upper and lower cooling devices 13, 13 that use air or water, etc.
The basic configuration is such that a pressure roll 14 is placed below the heating roll 12 in parallel to the heating roll 12.
上記冷却ロール１１は、水平状態で（第１図に
おいて左から右に）搬送されてくる熱収縮属シー
ト材１５の上面に密着してこの熱収縮属シート材
１５を冷却するために、冷却空気あるいは冷却水
循環等によつてロール表面１１ａを冷却している
ものである。また、この熱収縮層シート材１５
は、あらかじめ搬送方向に直交する方向（幅方
向）に延伸されて熱収縮性を付与されたものであ
り、例えば、架橋ポリエチレン等からなるもので
ある。さらに、上記加熱ロール１２は、上記圧着
ロール１４との間に、ロール状の熱収縮着を有す
るプラスチツク材、例えばポリエチレンよりなる
熱融着層シート材１６を挟み込んでロール表面１
２ａに巻き掛けるように構成され、このロール表
面１２ａは、上記熱融着層シート材１６を溶融す
ると共に、上記熱収縮層シート材１５を収縮させ
ない温度、例えば80℃〜130℃に維持されている。
そして、上記冷却ロール１１と加熱ロール１２の
両ロール表面１１ａ，１２ａは、ともに滑らかな
円筒面に形成されていると共に、加熱ロール１２
のロール表面１２ａには、溶解した熱融着層シー
ト材１６が付着するのを防止するための表面コー
テイング処理（四フツ化エチレン樹脂コーテイン
グ処理）が施されている。 The cooling roll 11 is in close contact with the upper surface of the heat-shrinkable metal sheet material 15 that is being conveyed in a horizontal state (from left to right in FIG. Alternatively, the roll surface 11a is cooled by circulating cooling water or the like. In addition, this heat shrink layer sheet material 15
is a material that has been previously stretched in the direction (width direction) orthogonal to the conveyance direction to impart heat shrinkability, and is made of, for example, crosslinked polyethylene. Further, the heating roll 12 and the pressure roll 14 sandwich a heat-sealing layer sheet material 16 made of a roll-shaped heat-shrinkable plastic material, for example, polyethylene, so that the surface of the roll is
The roll surface 12a is maintained at a temperature that melts the heat-adhesive layer sheet material 16 and does not cause the heat-shrinkable layer sheet material 15 to shrink, for example, 80°C to 130°C. There is.
The surfaces 11a and 12a of the cooling roll 11 and the heating roll 12 are both formed into smooth cylindrical surfaces, and the heating roll 12
The roll surface 12a is subjected to a surface coating treatment (tetrafluoroethylene resin coating treatment) to prevent the melted heat-sealing layer sheet material 16 from adhering.
上記のように構成された製造装置１０を用いて
本発明の熱収縮性シートの製造方法の第１実施例
を説明すれば、第１図に示すように、左から右方
に搬送されてくる熱収縮層シート材１５と、圧着
ロール１４と加熱ロール１２との間に挟み込ま
れ、加熱ロール１２に巻き掛けられて移送されて
くる熱融着層シート材１６とが、冷却ロール１１
と加熱ロール１２との間で重ね合わされ加圧され
る。この時、上記熱収縮層シート材１５は、その
上面側を冷却ロール１１のロール表面１１ａに密
着することにより冷却され、かつ熱融着層シート
材１６は加熱ロール１２のロール表面１２ａに密
着することにより加熱溶融されるから、両シート
材１５，１６は円滑に融着されると共に、熱収縮
層シート材１５が熱によつて収縮することがな
い。 To explain the first embodiment of the method for manufacturing a heat-shrinkable sheet of the present invention using the manufacturing apparatus 10 configured as described above, as shown in FIG. The heat-shrinkable layer sheet material 15 and the heat-adhesive layer sheet material 16, which is sandwiched between the pressure roll 14 and the heating roll 12 and is wrapped around the heating roll 12 and transported, are transferred to the cooling roll 11.
and the heating roll 12 and are overlapped and pressurized. At this time, the heat-shrinkable layer sheet material 15 is cooled by bringing its upper surface into close contact with the roll surface 11a of the cooling roll 11, and the heat-sealing layer sheet material 16 is brought into close contact with the roll surface 12a of the heating roll 12. As a result, the sheet materials 15 and 16 are smoothly fused together, and the heat-shrinkable layer sheet material 15 does not shrink due to heat.
次いで、上記冷却ロール１１と加熱ロール１２
とで加圧融着された両シート材１５，１６は、上
下一対の冷却装置１３，１３の間を通ることによ
つて速やかに冷却されるから、シートにうねりが
生じることがなく、良質の熱収縮性シートが連続
的に得られる。 Next, the cooling roll 11 and heating roll 12
The sheet materials 15 and 16 that are pressure-fused together are rapidly cooled by passing between the pair of upper and lower cooling devices 13 and 13, so that the sheets do not have any waviness and are of good quality. A heat-shrinkable sheet is obtained continuously.
また、第３図は、本発明の第２実施例を実施す
るためのもので、本実施例においては、上記第１
実施例の冷却ロール１１の代わりに、ロール表面
（円筒面）２０ａの両側部に溝２０ｂ，２０ｂを
形成した冷却ロール２０を用いるものである。そ
して、この冷却ロール２０の両溝２０ｂ，２０ｂ
に、両側縁部に突条２１，２１を有する熱収縮層
シート材２２の両突条２１，２１を嵌合した状態
で、この熱収縮層シート材２２に熱融着層シート
材１６を融着する。これにより、上記第１実施例
の効果の上に、熱収縮層シート材２２の熱による
収縮をより一層抑制できるという効果を奏する。 Further, FIG. 3 is for implementing the second embodiment of the present invention, and in this embodiment, the above-mentioned first embodiment is shown.
In place of the cooling roll 11 of the embodiment, a cooling roll 20 having grooves 20b, 20b formed on both sides of the roll surface (cylindrical surface) 20a is used. Both grooves 20b, 20b of this cooling roll 20
Then, with both protrusions 21, 21 of the heat-shrinkable layer sheet material 22 having protrusions 21, 21 on both side edges fitted, the heat-adhesive layer sheet material 16 is fused to the heat-shrinkable layer sheet material 22. wear. Thereby, in addition to the effect of the first embodiment, it is possible to further suppress the shrinkage of the heat-shrinkable layer sheet material 22 due to heat.
なお、上記各実施例において使用される熱収縮
層シート材１５，２２は連続していればよく、例
えばバツチ方式で製造された短尺の延伸シートを
つなぎ合わせたものでもよい。また、熱融着層シ
ート材１６はロールシートをつなぎ合わせたもの
を使用すればよい。さらに、上記各熱収縮層シー
ト材１５，２２は、熱融着層シート材１６との融
着前に、その下面（熱融着層シート材１６との融
着面）側を収縮しない範囲の温度まで予熱してお
いてもよい。 The heat-shrinkable layer sheet materials 15 and 22 used in each of the above embodiments only need to be continuous, and may be, for example, short stretched sheets produced by a batch method and joined together. Furthermore, the heat-adhesive layer sheet material 16 may be a combination of rolled sheets. Further, each of the heat-shrinkable layer sheet materials 15 and 22 has its lower surface (the surface fused to the heat-sealable layer sheet material 16) within a range that does not shrink before being fused to the heat-sealing layer sheet material 16. It may be preheated to the desired temperature.
「発明の効果」
以上説明したように、本発明によれば、延伸さ
れた熱収縮層シート材を冷却ロールで冷却し、か
つ熱融着層シート材を加熱ロールで加熱すると共
に、両ロールで熱収縮層シート材と熱融着層シー
ト材とを重ね合わせて加圧しながら連続搬送する
ようにしたから、熱による熱収縮層シート材の収
縮を防止することができる上に、熱収縮層シート
材に連続して熱融着層シート材を融着させること
ができ、極めて生産性が高いという効果を奏す
る。"Effects of the Invention" As explained above, according to the present invention, the stretched heat-shrinkable layer sheet material is cooled by the cooling roll, and the heat-adhesive layer sheet material is heated by the heating roll, and both rolls are heated. Since the heat-shrinkable layer sheet material and the heat-adhesive layer sheet material are overlapped and continuously conveyed while being pressurized, it is possible to prevent the heat-shrinkable layer sheet material from shrinking due to heat, and the heat-shrinkable layer sheet material The thermal adhesive layer sheet material can be continuously fused to the material, resulting in extremely high productivity.
第１図と第２図は本発明の第１実施例を示すも
ので、第１図は熱収縮性シートの製造装置を説明
する概略側面図、第２図は冷却ロールと加熱ロー
ルとの関係を説明する断面図、第３図は本発明の
第２実施例を示す断面図、第４図と第５図は従来
の熱収縮性シートを示すもので、第４図は斜視
図、第５図は使用方法を説明する斜視図である。
１０……製造装置、１１……冷却ロール、１２
……加熱ロール、１３……冷却装置、１５……熱
収縮層シート材、１６……熱融着層シート材、２
０……冷却ロール、２２……熱収縮層シート材。
1 and 2 show a first embodiment of the present invention, FIG. 1 is a schematic side view illustrating a heat-shrinkable sheet manufacturing apparatus, and FIG. 2 is a relationship between a cooling roll and a heating roll. FIG. 3 is a sectional view showing a second embodiment of the present invention, FIGS. 4 and 5 show conventional heat-shrinkable sheets, FIG. 4 is a perspective view, and FIG. The figure is a perspective view illustrating how to use it. 10... Manufacturing equipment, 11... Cooling roll, 12
... Heating roll, 13 ... Cooling device, 15 ... Heat shrink layer sheet material, 16 ... Heat fusion layer sheet material, 2
0...Cooling roll, 22...Heat shrink layer sheet material.
Claims (1)
と加熱ロール１２との間に、延伸された熱収縮層
シート材１５，２２と熱融着層シート材１６とを
挟み込んで、上記冷却ロールで上記熱収縮層シー
ト材を冷却し、かつ上記加熱ロールで上記熱融着
層シート材を加熱すると共に、上記両ロールで上
記熱収縮層シート材と熱融着層シート材とを重ね
合わせて加圧しながら連続搬送し、これら両シー
ト材を融着することを特徴とする熱収縮性シート
の製造方法。 ２ 熱収縮層シート材と熱融着層シート材とを融
着した後に冷却することを特徴とする特許請求の
範囲第１項記載の熱収縮性シートの製造方法。[Claims] 1. Cooling rolls 11, 20 arranged opposite to each other.
The stretched heat-shrinkable layer sheet materials 15 and 22 and the heat-adhesive layer sheet material 16 are sandwiched between the heating roll 12 and the heat-shrinkable layer sheet material 16, and the cooling roll cools the heat-shrinkable layer sheet material, and the heated The heat-adhesive layer sheet material is heated with a roll, and the heat-shrinkable layer sheet material and the heat-adhesive layer sheet material are overlapped and continuously conveyed with pressure using both rolls, thereby fusing these two sheet materials. A method for producing a heat-shrinkable sheet. 2. The method for producing a heat-shrinkable sheet according to claim 1, wherein the heat-shrinkable sheet material and the heat-adhesive layer sheet material are cooled after being fused together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61217497A JPS6372523A (en) | 1986-09-16 | 1986-09-16 | Manufacture of heat shrinkable sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61217497A JPS6372523A (en) | 1986-09-16 | 1986-09-16 | Manufacture of heat shrinkable sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6372523A JPS6372523A (en) | 1988-04-02 |
| JPH0431493B2 true JPH0431493B2 (en) | 1992-05-26 |
Family
ID=16705163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61217497A Granted JPS6372523A (en) | 1986-09-16 | 1986-09-16 | Manufacture of heat shrinkable sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6372523A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112705931B (en) * | 2021-03-15 | 2022-07-15 | 常州市创联电源科技股份有限公司 | Automatic assembling equipment for switch power supply pressing bar |
-
1986
- 1986-09-16 JP JP61217497A patent/JPS6372523A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6372523A (en) | 1988-04-02 |
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