JPS6130828Y2 - - Google Patents

Info

Publication number
JPS6130828Y2
JPS6130828Y2 JP1978137313U JP13731378U JPS6130828Y2 JP S6130828 Y2 JPS6130828 Y2 JP S6130828Y2 JP 1978137313 U JP1978137313 U JP 1978137313U JP 13731378 U JP13731378 U JP 13731378U JP S6130828 Y2 JPS6130828 Y2 JP S6130828Y2
Authority
JP
Japan
Prior art keywords
balloon
sheet
air
foam sheet
mold
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
Application number
JP1978137313U
Other languages
Japanese (ja)
Other versions
JPS5552321U (en
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 filed Critical
Priority to JP1978137313U priority Critical patent/JPS6130828Y2/ja
Publication of JPS5552321U publication Critical patent/JPS5552321U/ja
Application granted granted Critical
Publication of JPS6130828Y2 publication Critical patent/JPS6130828Y2/ja
Expired legal-status Critical Current

Links

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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92009—Measured parameter
    • B29C2948/92114—Dimensions
    • B29C2948/92133—Width or height
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92323—Location or phase of measurement
    • B29C2948/92438—Conveying, transporting or storage of articles
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92514—Pressure
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/9258—Velocity
    • B29C2948/926—Flow or feed rate
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92904—Die; Nozzle zone

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Description

【考案の詳細な説明】 この考案は押出成形された発泡シートのバルー
ンによるシート幅自動調整装置に関し、発泡シー
トのバルーンの規定の大きさまでエアー供給によ
つて膨らませてバルーンの安定化をはかり、シー
ト幅のバラツキを極く少なくできるようにしたも
のである。[Detailed description of the invention] This invention relates to an automatic sheet width adjustment device using an extrusion-molded foam sheet balloon. This makes it possible to minimize variations in width.

従来より押出機から金型を通して押出成形され
た発泡シートに対しては、バルーン内に留まつた
余分なガスを真空ポンプ等にて抜脱させるように
していた。しかしながら真空ポンプの使用による
と、バルーンを大きく膨らませることは難しくガ
ス抜き作動を開始しても真空度合が高くなる迄に
時間がかかり、バラツキの範囲も大きく、適切で
なく、また真空ポンプからバルーン迄の配管等の
継なぎ目がゆるむと真空度合が低くなり、その保
持、点検を度々必要とするものであつた。 Conventionally, when a foam sheet is extruded from an extruder through a mold, excess gas remaining in a balloon is removed using a vacuum pump or the like. However, when using a vacuum pump, it is difficult to inflate the balloon to a large extent, and even after the degassing operation starts, it takes time for the degree of vacuum to reach a high level, and the range of variation is large, making it unsuitable. When the joints of the piping etc. become loose, the degree of vacuum decreases, requiring frequent maintenance and inspection.

そこで、この考案においては上記従来の欠点お
よび不便を解消できるようにしたバルーンによる
自動調整装置であつてその構成は、押出機の金型
より押出される発泡シートのバルーン内のエアー
の出入が強制的に行なえるようにエアー経路を金
型と連結してなり、該エアー経路にはそれぞれの
端部がコンプレツサーあるいは排気路と連結され
てなる一対の電磁弁をエジエクター部分となる分
岐部を挾んで設け、さらに該エアー経路には製品
シートに対する幅を予め設定して検出できる検出
部を制御部を介して連結し、バルーン内のエアー
制御をシート幅に応じて自動調整できるようにし
たことを特徴とするものである。 Therefore, in this invention, we have developed an automatic adjustment device using a balloon that can eliminate the above-mentioned drawbacks and inconveniences of the conventional technology. An air passage is connected to the mold so that the air passage can be carried out, and a pair of solenoid valves, each end of which is connected to a compressor or an exhaust passage, is inserted between the branch part that becomes the ejector part. Further, a detection unit capable of detecting a preset width for the product sheet is connected to the air path via a control unit, so that air control within the balloon can be automatically adjusted according to the sheet width. That is.

次いで、この考案の実施態様について図を参照
しながら以下に例示する。 Next, embodiments of this invention will be illustrated below with reference to the drawings.

１は熱可塑性樹脂発泡シートＳの押出機、２は
押出機１の先端に装備した金型、３は金型２内へ
導入して連結したエアー経路であり、エジエクタ
ー部分になる分岐部Ｃ（特に第３図参照）を挾ん
で電磁弁Ａと電磁弁Ｂとを備えている。そして電
磁弁Ａはコンプレツサー側Ｄと連結しており、電
磁弁Ｂは排気路側Ｅと連結しており、何れの電磁
弁Ａ，Ｂも遠隔位置にある制御ボツクス４側と電
気的に連結している。５，５は発泡シートＳに対
する繰出用ロール、６，６は検出部であり、該検
出部６，６は上記ロール５，５を経た発泡シート
Ｓがロール５，５の通過前におけるバルーンS′の
大きさ調整で所定幅の広さになると光電管（図示
せず）等で検出できるようにしており、その検出
作用を制御ボツクス４へと連絡できるようにして
いる。 1 is an extruder for the thermoplastic resin foam sheet S, 2 is a mold installed at the tip of the extruder 1, 3 is an air path introduced into the mold 2 and connected, and a branch part C (which becomes the ejector part) In particular, it is provided with a solenoid valve A and a solenoid valve B sandwiching a solenoid valve (see FIG. 3). Solenoid valve A is connected to the compressor side D, solenoid valve B is connected to the exhaust path side E, and both solenoid valves A and B are electrically connected to the remote control box 4 side. There is. Reference numerals 5 and 5 indicate rolls for feeding out the foam sheet S, and 6 and 6 indicate detection units, which detect the foam sheet S that has passed through the rolls 5 and 5 and the balloon S' before passing through the rolls 5 and 5. When the width is adjusted to a predetermined width, it can be detected by a phototube (not shown), and the detection effect can be communicated to the control box 4.

上記のごとき装置の作動について述べると、ス
タート時にあつては制御ボツクス４側からのスイ
ツチング操作等にて電磁弁Ｂを閉じると共に電磁
弁Ａを開いて、金型２側へのエアー経路３にエア
ーを入れて発泡シート用のバルーンS′内にエアー
を導入してバルーンを膨張させる。順次バルーン
が大きくなり、ロール５，５間から出てくる発泡
シートの製品幅が広くなり、予め検出部６，６で
設定した所定の幅まで達すると、検出部６，６が
この状態を検出して制御ボツクス４へと連絡し、
電磁弁Ａを閉じてコンプレツサー側Ｄからのエア
ーの導入を停止し、発泡シートＳの製品幅が決め
られることになる。さらに発泡シート用バルーン
S′を縮小して製品幅を縮小したい場合には、検出
部６，６の移動にて間隔調整した後、電磁弁Ｂを
開いた状態で制御ボツクス４からの指令で電磁弁
Ａを開き排気路側Ｅへコンプレツサーエアーを吹
出すことにより、バルーンS′内のエアーが排気路
側Ｅへと強制的に抜き出されるもので、エアー抜
き出しによりバルーンが小さくなつて発泡シート
Ｓの製品幅が所定に縮小されることが検出部６，
６にて検出されると、制御ボツクス４からの指令
にて電磁弁Ａ，Ｂを閉じることになる。また逆に
発泡シート用バルーンS′を拡大して製品幅を拡大
したい場合には、検出部６，６の移動にて間隔調
整した後、電磁弁Ｂを閉じた状態で制御ボツクス
４からの指令で電磁弁Ａを開くことによりバルー
ンS′内へエアーが送給されるもので、バルーン
S′が大きくなつて発泡シートＳの製品幅が所定に
拡大されたことが検出部６，６にて検出される
と、制御ボツクス４からの指令にて電磁弁Ａを閉
じることになる。 To describe the operation of the above device, at the time of starting, the solenoid valve B is closed by switching operation from the control box 4 side, and the solenoid valve A is opened to supply air to the air path 3 to the mold 2 side. , and introduce air into the foam sheet balloon S′ to inflate the balloon. As the balloon gradually becomes larger, the product width of the foam sheet that comes out from between the rolls 5 and 5 becomes wider, and when it reaches a predetermined width set in advance by the detection units 6 and 6, the detection units 6 and 6 detect this state. and contact control box 4.
The solenoid valve A is closed to stop the introduction of air from the compressor side D, and the product width of the foam sheet S is determined. In addition, balloons for foam sheets
If you want to reduce the product width by reducing S', adjust the interval by moving the detection parts 6, 6, and then open the solenoid valve A with a command from the control box 4 with the solenoid valve B open to exhaust air. By blowing out compressor air to the roadside E, the air in the balloon S' is forcibly drawn out to the exhaust roadside E. As the air is drawn out, the balloon becomes smaller and the product width of the foam sheet S is determined. The detection unit 6,
When detected at 6, the solenoid valves A and B are closed by a command from the control box 4. Conversely, if you want to enlarge the foam sheet balloon S' to increase the product width, adjust the spacing by moving the detection parts 6, 6, and then issue a command from the control box 4 with the solenoid valve B closed. By opening the solenoid valve A, air is supplied into the balloon S'.
When the detection units 6, 6 detect that S' has increased and the product width of the foam sheet S has been expanded to a predetermined value, the solenoid valve A is closed in response to a command from the control box 4.

以上のごとく、この考案によればスタートアツ
プ時等、バルーンを規定の大きさまで膨らませる
のに遠隔作用の制御ボツクスからのスイツチング
操作等にて極く短時間でエアーを充満させること
ができ至便である。また発泡シートの製品幅を変
更する場合にも、電磁弁Ａ，Ｂを有するエアー経
路３によるエアーの強制的な抜き出しおよびエア
ー送給にて簡単且つ迅速に応じることができる。
従つてバルーンによるシート幅の調整が自動化で
きるものであり、非常に使用し易く、バルーン調
整によるバラツキについても従来のごとき真空ポ
ンプ使用によるものと比べ、その範囲を小さくで
き、確実なバルーン調整が可能となる。さらにエ
アーの出入を行なう電磁弁付のエアー経路は発泡
シートの製品幅に対する検出部側での検出に応じ
て制御可能なものであつて、作業管理が容易で故
障発生も少ない装置となり、優れた実用的効果を
発揮できる。 As described above, according to this invention, when starting up, etc., the balloon can be inflated to a specified size in a very short time by switching operations from a remote control box, which is extremely convenient. be. Furthermore, even when changing the product width of the foam sheet, the change can be easily and quickly achieved by forcibly extracting air and supplying air through the air path 3 having electromagnetic valves A and B.
Therefore, the adjustment of the sheet width using the balloon can be automated, making it extremely easy to use, and the range of variation due to balloon adjustment can be reduced compared to the conventional method using a vacuum pump, allowing for reliable balloon adjustment. becomes. Furthermore, the air path with a solenoid valve that allows air to enter and exit can be controlled according to the detection unit's detection of the product width of the foam sheet, making it an excellent device that facilitates work management and reduces the occurrence of failures. It can have practical effects.

【図面の簡単な説明】[Brief explanation of the drawing]

図はこの考案の実施態様を例示するものであつ
て、第１図は装置の概要正面図、第２図は検出部
側の側面図、第３図はエジエクト部分になる分岐
部の概要図である。 １……押出機、２……金型、３……エアー経
路、４……制御ボツクス、５，５……繰出用ロー
ル、６，６……検出部、Ａ，Ｂ……電磁弁、Ｓ…
…発泡シート、S′……バルーン。 The figures illustrate the embodiment of this invention, and Fig. 1 is a schematic front view of the device, Fig. 2 is a side view on the detection section side, and Fig. 3 is a schematic diagram of the branch part that becomes the eject part. be. 1... Extruder, 2... Mold, 3... Air path, 4... Control box, 5, 5... Roll for feeding, 6, 6... Detection section, A, B... Solenoid valve, S …
...Foam sheet, S'...Balloon.

Claims (1)

【実用新案登録請求の範囲】 １ 押出機の金型より押出される発泡シートのバ
ルーン内のエアーの出入が強制的に行なえるよ
うにエアー経路を金型と連結してなり、該エア
ー経路にはそれぞれの端部がコンプレツサーあ
るいは排気路と連結されてなる一対の電磁弁を
エジエクター部分となる分岐部を挾んで設け、
さらに該エアー経路には製品シートに対する幅
を予め設定して検出できる検出部を制御部を介
して連結し、バルーン内のエアー制御をシート
幅に応じて自動調整できるようにしたことを特
徴とする発泡シートのバルーンによるシート自
動調整装置。 ２ 検出部は予め設定された所定幅の製品シート
の両端を検知できる光電管を備えたものからな
る上記実用新案登録請求の範囲第１項記載の発
泡シートのバルーンによるシート自動調整装
置。[Claims for Utility Model Registration] 1. An air path is connected to the mold so that air can be forced into and out of the balloon of the foam sheet extruded from the mold of an extruder, and the air path is connected to the mold. A pair of solenoid valves, each end of which is connected to a compressor or an exhaust path, are installed between the branch part that becomes the ejector part, and
Furthermore, a detection unit capable of detecting a preset width for the product sheet is connected to the air path via a control unit, so that air control within the balloon can be automatically adjusted according to the sheet width. Automatic sheet adjustment device using a foam sheet balloon. 2. The automatic sheet adjustment device using a foam sheet balloon according to claim 1, wherein the detection section is equipped with a phototube capable of detecting both ends of a product sheet having a predetermined width.
JP1978137313U 1978-10-04 1978-10-04 Expired JPS6130828Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1978137313U JPS6130828Y2 (en) 1978-10-04 1978-10-04

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1978137313U JPS6130828Y2 (en) 1978-10-04 1978-10-04

Publications (2)

Publication Number Publication Date
JPS5552321U JPS5552321U (en) 1980-04-07
JPS6130828Y2 true JPS6130828Y2 (en) 1986-09-09

Family

ID=29109386

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1978137313U Expired JPS6130828Y2 (en) 1978-10-04 1978-10-04

Country Status (1)

Country Link
JP (1) JPS6130828Y2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5280361A (en) * 1975-12-27 1977-07-06 Mitsui Toatsu Chemicals Process for manufacturing foam sheet

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5280361A (en) * 1975-12-27 1977-07-06 Mitsui Toatsu Chemicals Process for manufacturing foam sheet

Also Published As

Publication number Publication date
JPS5552321U (en) 1980-04-07

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