DE2104100A1 - Foil tube blow moulder - with width adjustment - Google Patents

Foil tube blow moulder - with width adjustment

Info

Publication number
DE2104100A1
DE2104100A1 DE19712104100 DE2104100A DE2104100A1 DE 2104100 A1 DE2104100 A1 DE 2104100A1 DE 19712104100 DE19712104100 DE 19712104100 DE 2104100 A DE2104100 A DE 2104100A DE 2104100 A1 DE2104100 A1 DE 2104100A1
Authority
DE
Germany
Prior art keywords
pair
width
web
button
squeeze rollers
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.)
Pending
Application number
DE19712104100
Other languages
German (de)
Inventor
Bernd 4801 Künsebeck Sander
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CITO KUNSTSTOFFE U VERPACKUNGS
Original Assignee
CITO KUNSTSTOFFE U VERPACKUNGS
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 by CITO KUNSTSTOFFE U VERPACKUNGS filed Critical CITO KUNSTSTOFFE U VERPACKUNGS
Priority to DE19712104100 priority Critical patent/DE2104100A1/en
Publication of DE2104100A1 publication Critical patent/DE2104100A1/en
Pending 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
    • B29C48/25—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
    • B29C2948/92504—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
    • B29C2948/92504—Controlled parameter
    • B29C2948/92609—Dimensions
    • B29C2948/92628—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
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92904—Die; Nozzle zone
    • 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
    • B29C2948/92923—Calibration, after-treatment or cooling zone
    • 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
    • B29C2948/92933—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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0019—Combinations of extrusion moulding with other shaping operations combined with shaping by flattening, folding or bending
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)

Abstract

At a certain spacing from the blow head the machine has a pair of squeezing rollers and a width control with a foil edge scanner, actuating a vertical adjuster of the roller pair to move it upwards to attain a foil web width reduction, or downwards for its width increase. Additional horizontal adjustment, controlled by one edge scanner, may be provided.

Description

Mit einem Breitenregler ausgerüstete Blasfolienmaschine Die Erfindung bezieht sich auf eine Blasfolienmaschine mit einem in einem bestimmten Abstand vom Blaskopf angeordneten Abquetschwalzenpaar und einem Breitenregler, der einen Taster für die Bolienbahnbreite aufweist.Blown film machine equipped with a width regulator. The invention refers to a blown film machine with a at a certain distance from the Blow head arranged pair of squeeze rollers and a width regulator that has a button for the width of the Bolienbahn.

Bei den bekannten Blasfolienmaschinen dieser Art tritt der Folienschlauch aus einem ortsfest angeordneten Blaskopf aus, wird mit EühlluSt umspült, durchläuft ein Abquetschwalzenpaar und wird dann aufgewickelt. In den Bolienschlauch wird in dem Bereich zwischen dem Blaskopf und dem Abquetschwalzenpaar Druckluft eingeführt. Durch dieses Luftpolster kann die Breite der Schlauchfolie variiert werden. Das Einblasen einer iiuftmenge, die die Normalluftmenge übersteigt, führt zu einer größeren Bahnbreite der Schlauchfolie. Da bei der Fertigung einer Schlauchfolie vorgegebene Fertigungstoleranzen eingehalten werden müssen, hat man einen Breitenregler entwickelt, der einen Banntaster aufweist, über den ein Magnetventil für die Zuführung von Druckluft in den Innenraum der Schlauchfolie bzw.In the known blown film machines of this type, the film tube occurs from a stationary blow head, is flushed with EühlluSt, runs through a pair of squeeze rollers and is then wound up. The bolus tube is inserted in compressed air is introduced into the area between the blow head and the pair of squeeze rollers. This air cushion allows the width of the tubular film to be varied. That Blowing in an amount of air that exceeds the normal amount of air leads to a larger amount Width of the tubular film. As given in the manufacture of a tubular film Manufacturing tolerances have to be adhered to, a width regulator has been developed, which has a ban button via which a solenoid valve for the supply of compressed air into the interior of the tubular film or

ein Abluftmagnetventil gesteuert wird. Sofern die £?olienbahnbreite zu gering ist, wird das ruckluftventil kurzzeitig geöffnet und zusätzliche Druckluft in den Innenraum der Schlauchfolie eingefilirt. Wird die Bairnbreite zu groß, so wird über ein Signal des Bahntasters das Abluftventil kurzzeitig geöffnet.an exhaust solenoid valve is controlled. Provided that the width of the sheet is too low, the return air valve is opened briefly and additional compressed air Filed into the interior of the tubular film. If the hair width is too large, so is about a Signal of the rail button briefly the exhaust air valve opened.

Die Öffnungszeiten ergeben sich aus den Zeitkonstanten der Blasanlage.The opening times result from the time constants of the blow molding system.

Dieser Breitenregler ist nur bei einer blasenlage mit ortsfestem Blaskopf verwendbar.This width regulator is only available for a bubble position with a stationary blow head usable.

ber größte eil der blasanlagen benutzt jedoch einen Blaskopf, der während des Betriebs rotiert.Most of the blow molding systems, however, use a blow head that rotates during operation.

Der Erfindung liegt die rufgabe zugrunde, einen Breitenregler für eine Blasenlage mit rotierenden Blaskopf zu entwickeln, die in der Konstruktion einfach ist und eine exakte Breitenregelung ermöglichst.The invention is based on the task of a width regulator for Develop a bubble layer with rotating blow head included in the design is simple and enables an exact width regulation.

Diese Aufgabe wird nach der erfindung dadurch gelöst, daß dem Abquetschwalzenpaar eine vom Bahntaster betätigte Vorrichtung zum gemeinsamen vertikalen Verstellen zugeordnet ist und das Abquetschwalzenpaar aus der Normallage nach oben zur Erzielung eines Bahnbreitenschwunds und nach unten zur Erzielung einer Bahnbreitensteigerung bewegbar ist.This object is achieved according to the invention in that the pair of squeezing rollers a device actuated by the rail button for joint vertical adjustment is assigned and the pair of squeeze rollers from the normal position upwards to achieve a web width shrinkage and downwards to achieve a web width increase is movable.

Die Auslöseimpulse für die Verstellbewegungen sind genau begrenzt und werden den Zeitkonstanten der Blasfolienanlage angeaßt.The trigger pulses for the adjustment movements are precisely limited and are adapted to the time constants of the blown film line.

Der erfindungsgemäß gestaltete Breitenregler ist somit von der honstruktion des Bleskopfes völlig unabhängig.The width regulator designed in accordance with the invention is therefore of the construction of the bleskopf completely independent.

Es ist zweckbäßig, eine Bahnkante als Bezugskante für die Breitenregelung zu wählen und dieser Bahnkante Tasten zuzuordnen, die eine eng tolerierte Lage dieser bahnkante gewährleisten. zu diesem zweck ist die Verstellvorrichtung für das Abquetschwalzenpaar so ausgebildet, daß auch eine axiale gemeinsame Verstellbewegung des Abquetschwalzenpaares möglich ist und diese Verstellbewegung über die genannten Bahnkantentaster gesteuert wird.It is advisable to use a web edge as a reference edge for the width control to select and to assign keys to this web edge that have a tightly tolerated position of this ensure the web edge. for this purpose the adjusting device for the pair of squeezing rollers is used designed so that an axial common adjustment movement of the pair of squeeze rollers is possible and this adjustment movement is controlled via the mentioned web edge sensors will.

Diese axiale ~Verstellbarkeit des Abquetschwalzenpaars gewährleistet darüber hinaus zugleich eine Seitenkantensteuerung der aufzuwikkelnden Folie. Dadurch werden kantengerade Sollen erzielt und es entfallen zusätzliche Seitenkantensteuermittel an der sufarickelmaschine.This axial adjustability of the pair of squeeze rollers is guaranteed in addition, at the same time a side edge control of the film to be wound up. Through this straight edges are achieved and there are no additional side edge control means at the sufarickel machine.

die taster, die der anderen Bahnkante zugeordnet sind, nehmen die Steuerung für die vertikale Verstellbewegung des isbquetschwalzenpaares vor.the buttons assigned to the other edge of the web take the Control for the vertical adjustment movement of the pair of squeezing rollers.

sie erfindungsgemäße Blasfolienmaschine ist schematisch in der zeichnung dargestellt. ns zeigen: ?ig. 1 die Blasfolienmaschine im Aufriß, ig. 2 einen Schnitt nach der Linie II - II in i?ig. 1.The blown film machine according to the invention is shown schematically in the drawing shown. ns show:? ig. 1 the blown film machine in elevation, ig. 2 a section after the line II - II in i? ig. 1.

Die Blasfolienmaschine 1 weist einen Blaskopf 2 auf, aus den die Schlauchfolie 7 in Richtung des pfeiles 4 heraustritt. Im Innern der Schlauchfolie ist ein bestimmtes Luftpolster, das sich bis zu dem Abquetschwalzenpaar 5, 6 erstreckt, durch das die ochlauchfolie hindurchgeführt und dann zu einer Rolle 7 aufgewickelt wird.The blown film machine 1 has a blow head 2 from which the tubular film 7 emerges in the direction of arrow 4. Inside the tubular film there is a certain one Air cushion that extends up to the pair of squeeze rollers 5, 6 through which the Tubular film is passed through and then wound up into a roll 7.

Der von dem Abquetschwalzenpaar ablaufenden Folienbahn ist ein Breitenregler b zugeordnet, der mehrere Bahntaster 9, 10 aufweist.The film web running off the pair of squeeze rollers is a width regulator b, which has a plurality of rail buttons 9, 10.

Dem Abquetschwalzenpaar 5, 6 ist eine nicht dargestellte Verstellvorrichtung zugeordnet, die sowohl eine vertikale als auch eine horizontale Verstellung des Abquetschwalzenpaares erlaubt. Die steuerung dieser \Terstellbewegungen wird durch den Regler 8 vorgenommen. Der taster 9 ist der taster für die Kantensteuerung (dorizontalverstellung). Der Taster 10 ist für die Bahnbreitensteuerung (Vertikalverstellung).The pair of squeeze rollers 5, 6 is an adjusting device, not shown associated with both vertical and horizontal adjustment of the Pair of squeeze rollers allowed. These adjusting movements are controlled by made the controller 8. The button 9 is the button for the edge control (horizontal adjustment). The button 10 is for web width control (vertical adjustment).

Claims (2)

E a t e n t a n 5 p r ü c h e E a t e n t a n 5 p r ü c h e 1, Blasfolienmaschine mit einen in einem bestimmten Abstand vom Blaskopf angeordneten Abquetschwalzenparr und einem Breitenregler, der einen laster für die Folienbahnkanten aufweist, dadurch gekennzeichnet, daß dem Abquetschwalzenpaar (5, 6) eine von dem Bahntaster (10) betätigte Vorrichtung zum gemeinsamen vertikalen Verstellen zugeordnet ist und das Abquetschwalzenpaar aus der Normallage nach oben zur Erzilung eines bahnbreitenschwunds und nach unten zur Erzielung einer Bahnbreitensteigerung bewegbar ist.1, blown film machine with one at a certain distance from the blow head arranged Abquetschwalzenparr and a width regulator, which is a truck for the Having foil web edges, characterized in that the pair of squeezing rollers (5, 6) a device operated by the rail button (10) for the common vertical Adjustment is assigned and the pair of squeeze rollers from the normal position upwards to achieve a web width shrinkage and downwards to achieve a web width increase is movable. 2. Blasfolienmaschine nach Anspruch 1, dadurch gekennzeichnet, daß die Verstellvorrichtung des Abquetschwalzenpaars zusätzlich eine gemeinsame horizontale, über signale von einem einer Bahnkante zugeordneten Taster (9) gesteuerte Bewegung erlaubt.2. Blown film machine according to claim 1, characterized in that the adjusting device of the pair of squeeze rollers also has a common horizontal, Movement controlled by signals from a button (9) assigned to a web edge permitted.
DE19712104100 1971-01-29 1971-01-29 Foil tube blow moulder - with width adjustment Pending DE2104100A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19712104100 DE2104100A1 (en) 1971-01-29 1971-01-29 Foil tube blow moulder - with width adjustment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712104100 DE2104100A1 (en) 1971-01-29 1971-01-29 Foil tube blow moulder - with width adjustment

Publications (1)

Publication Number Publication Date
DE2104100A1 true DE2104100A1 (en) 1972-08-10

Family

ID=5797222

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19712104100 Pending DE2104100A1 (en) 1971-01-29 1971-01-29 Foil tube blow moulder - with width adjustment

Country Status (1)

Country Link
DE (1) DE2104100A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2363117A1 (en) * 1973-12-19 1975-06-26 Hoechst Ag METHOD AND DEVICE FOR THE PRODUCTION OF FILMS
EP0335411A2 (en) * 1988-03-31 1989-10-04 Idemitsu Petrochemical Co. Ltd. Method of and apparatus for manufacturing biaxially oriented film

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2363117A1 (en) * 1973-12-19 1975-06-26 Hoechst Ag METHOD AND DEVICE FOR THE PRODUCTION OF FILMS
EP0335411A2 (en) * 1988-03-31 1989-10-04 Idemitsu Petrochemical Co. Ltd. Method of and apparatus for manufacturing biaxially oriented film
EP0335411A3 (en) * 1988-03-31 1991-05-15 Idemitsu Petrochemical Co. Ltd. Method of and apparatus for manufacturing biaxially oriented film

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