CH420585A - Device for dividing a plastic film into narrow strips - Google Patents

Device for dividing a plastic film into narrow strips

Info

Publication number
CH420585A
CH420585A CH146564A CH146564A CH420585A CH 420585 A CH420585 A CH 420585A CH 146564 A CH146564 A CH 146564A CH 146564 A CH146564 A CH 146564A CH 420585 A CH420585 A CH 420585A
Authority
CH
Switzerland
Prior art keywords
rollers
knives
pair
film
plastic film
Prior art date
Application number
CH146564A
Other languages
German (de)
Inventor
Becker Hermann
Original Assignee
Becker Hermann
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 Becker Hermann filed Critical Becker Hermann
Publication of CH420585A publication Critical patent/CH420585A/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/42—Formation of filaments, threads, or the like by cutting films into narrow ribbons or filaments or by fibrillation of films or filaments
    • D01D5/426—Formation of filaments, threads, or the like by cutting films into narrow ribbons or filaments or by fibrillation of films or filaments by cutting films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/02—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a stationary cutting member
    • B26D1/03—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a stationary cutting member with a plurality of cutting members
    • B26D1/035—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a stationary cutting member with a plurality of cutting members for thin material, e.g. for sheets, strips or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/14—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
    • B26D1/20—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter coacting with a fixed member
    • B26D1/205—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter coacting with a fixed member for thin material, e.g. for sheets, strips or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/14—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
    • B26D1/24—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter coacting with another disc cutter
    • B26D1/245—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter coacting with another disc cutter for thin material, e.g. for sheets, strips or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/16—Cutting rods or tubes transversely
    • B26D3/161—Cutting rods or tubes transversely for obtaining more than one product at a time
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/08—Means for treating work or cutting member to facilitate cutting
    • B26D7/14—Means for treating work or cutting member to facilitate cutting by tensioning the work
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/04—Extrusion blow-moulding
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/4236—Drive means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
    • B65H23/188—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D2007/0012—Details, accessories or auxiliary or special operations not otherwise provided for
    • B26D2007/0068—Trimming and removing web edges

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Manufacturing & Machinery (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Description

  

  
 



  Vorrichtung zum Aufteilen einer Kunststoffolie in schmale Streifen
Die Erfindung betrifft eine Vorrichtung zum Aufteilen einer Kunststoffolie in schmale Streifen. Derartige Vorrichtungen können beispielsweise benutzt werden zum Herstellen von Garnen aus Kunststoffolien gemäss den Patenten Nr. 357 500 und 395 521.



   Wenn man Kunststoffolien durch eine Anzahl nebeneinanderstehender Messer dadurch aufteilt, dass man die Kunststoffolie mittels eines Walzenpaares durch diese Messerreihe hindurchzieht, so geschieht es nicht selten, dass sich die Kunststoffbahn in dem Bereich vor den Messern ein wenig verzieht und leichte Wellen bildet. Dadurch kann das Aufteilen in Streifen erschwert werden.



   Die Erfindung bezweckt, diese Schwierigkeiten zu verhindern.



   Gemäss der Erfindung erfolgt das dadurch, dass sowohl vor als auch hinter den Messern (gesehen in der Bewegungsrichtung der Folie) ein Walzenpaar angeordnet ist, das die Folie transportiert, wobei das Walzenpaar, das vor den Messern liegt, und somit die Folie durch die Messer hindurchzieht, eine Umfangsgeschwindigkeit besitzt, die um einige Prozent grösser ist, als die des hinteren Walzenpaares. Diese Anordnung hat sich besonders bewährt bei Vorrichtungen, bei denen die Kunststoffolie durch eine Anzahl feststehender kreisförmiger Messer aufgeteilt wird, wobei die Folie zwischen diesen Messern und einer feststehenden Unterlage hindurchgezogen wird.



   Die Zeichnung zeigt ein Ausführungsbeispiel der Erfindung.



   Eine Folie 1 aus Kunststoff, beispielsweise eine   0,04 mm    starke Folie aus Polyäthylen, wird von einem Wickel 2 durch ein Paar von Walzen 3, 4 mit einer Geschwindigkeit von   4 mimik.    abgezogen, wobei die Umfangsgeschwindigkeit dieser beiden Walzen ebenfalls 4 m/Min. beträgt. Hinter dem Walzenpaar 3, 4 liegt eine Anzahl von kreisförmigen Messern 5, die auf einer nicht drehbaren Achse 6 derart befestigt sind, dass sie sich nicht drehen können. Unterhalb der Reihe der Messer 5 liegt eine feste Unterlage 7. Die Unterlage 7 besteht beispielsweise aus einer Metallplatte 7a, auf deren ebener Oberseite eine dünne, beispielsweise 1 mm dicke Schicht 7b eines sehr elastischen Stoffes, wie Gummi, befestigt, beispielsweise aufgeklebt ist, wobei auf die Schicht 7b eine dünne Metallfolie 7c aufgeklebt ist.



  Die Unterlage 7 wird durch Federn gegen die Messer 5 gedrückt.



   Die Kunststoffolie 1 wird zwischen den Messern 5 und der von unten gegen sie gedrückten Unterlage 7 in Streifen la,   1b    usw. aufgeteilt. Ein Paar Walzen 8, 9 transportiert die Streifen mit einer Geschwindigkeit von 4,12   m/Min.    weiter. Die Umfangsgeschwindigkeit der Walzen 8, 9 ist also um 3   o/o    grösser als die der Walzen 3, 4. Der Durchmesser der Walzen 3, 4, 8, 9 kann beispielsweise 50-200 mm betragen.



   Es hat sich überraschenderweise gezeigt, dass mit dieser einfachen Anordnung zuverlässig erreicht werden kann, dass die Folie 1 im Bereich unmittelbar vor den Messern 5 völlig   gleichmässig    und glatt läuft, und dass auf diese Weise auch sehr dünne Kunststofffolien von grosser Breite, z. B. von einer Breite von mehr als   1 m    in schmale Streifen von nur wenigen Millimetern Breite störungsfrei aufgeteilt werden   könr    nen.  



   PATENTANSPRUCH
Vorrichtung zum Aufteilen einer Kunststoffolie durch eine Anzahl nebeneinander stehender Messer, dadurch gekennzeichnet, dass sowohl vor als auch hinter den Messern (5) ein mit Antrieb versehenes Walzenpaar (3, 4 bzw. 8, 9) vorgesehen ist, und die Vorrichtungen zum Antrieb dieser Walzenpaare der 

**WARNUNG** Ende DESC Feld konnte Anfang CLMS uberlappen**.



   



  
 



  Device for dividing a plastic film into narrow strips
The invention relates to a device for dividing a plastic film into narrow strips. Such devices can be used, for example, for the production of yarns from plastic films according to patent nos. 357 500 and 395 521.



   If you divide the plastic film by a number of knives standing next to each other by pulling the plastic film through this row of knives with a pair of rollers, it is not uncommon for the plastic sheet to warp a little in the area in front of the knives and to form slight waves. This can make it difficult to divide into strips.



   The invention aims to obviate these difficulties.



   According to the invention, this takes place in that a pair of rollers is arranged both in front of and behind the knives (seen in the direction of movement of the film) which transports the film, the pair of rollers in front of the knives and thus the film through the knife pulls through it, has a peripheral speed that is a few percent greater than that of the rear pair of rollers. This arrangement has proven particularly useful in devices in which the plastic film is divided by a number of fixed circular knives, the film being pulled through between these knives and a fixed base.



   The drawing shows an embodiment of the invention.



   A sheet 1 made of plastic, for example a 0.04 mm thick sheet made of polyethylene, is mimicked by a roll 2 through a pair of rollers 3, 4 at a speed of 4. deducted, the peripheral speed of these two rollers also 4 m / min. amounts. Behind the pair of rollers 3, 4 are a number of circular knives 5 which are fastened on a non-rotatable shaft 6 in such a way that they cannot rotate. Below the row of knives 5 is a solid base 7. The base 7 consists, for example, of a metal plate 7a, on the flat top of which a thin, for example 1 mm thick, layer 7b of a very elastic material such as rubber is attached, for example glued, with a thin metal foil 7c is glued to the layer 7b.



  The base 7 is pressed against the knife 5 by springs.



   The plastic film 1 is divided into strips 1 a, 1 b etc. between the knives 5 and the substrate 7 pressed against it from below. A pair of rollers 8, 9 transport the strips at a speed of 4.12 m / min. continue. The peripheral speed of the rollers 8, 9 is therefore 3 o / o greater than that of the rollers 3, 4. The diameter of the rollers 3, 4, 8, 9 can be 50-200 mm, for example.



   It has surprisingly been shown that with this simple arrangement it can be reliably achieved that the film 1 runs completely evenly and smoothly in the area immediately in front of the knives 5, and that in this way even very thin plastic films of great width, e.g. B. from a width of more than 1 m into narrow strips of only a few millimeters wide can be divided without interference.



   PATENT CLAIM
Device for dividing a plastic film by a number of juxtaposed knives, characterized in that a pair of rollers (3, 4 or 8, 9) provided with a drive is provided both in front of and behind the knives (5), and the devices for driving them Roller pairs of the

** WARNING ** End of DESC field could overlap beginning of CLMS **.

Claims (1)

**WARNUNG** Anfang CLMS Feld konnte Ende DESC uberlappen **. ** WARNING ** Beginning of CLMS field could overlap end of DESC **. Vorrichtung zum Aufteilen einer Kunststoffolie in schmale Streifen Die Erfindung betrifft eine Vorrichtung zum Aufteilen einer Kunststoffolie in schmale Streifen. Derartige Vorrichtungen können beispielsweise benutzt werden zum Herstellen von Garnen aus Kunststoffolien gemäss den Patenten Nr. 357 500 und 395 521. Device for dividing a plastic film into narrow strips The invention relates to a device for dividing a plastic film into narrow strips. Such devices can be used, for example, for the production of yarns from plastic films according to patent nos. 357 500 and 395 521. Wenn man Kunststoffolien durch eine Anzahl nebeneinanderstehender Messer dadurch aufteilt, dass man die Kunststoffolie mittels eines Walzenpaares durch diese Messerreihe hindurchzieht, so geschieht es nicht selten, dass sich die Kunststoffbahn in dem Bereich vor den Messern ein wenig verzieht und leichte Wellen bildet. Dadurch kann das Aufteilen in Streifen erschwert werden. If you divide the plastic film by a number of knives standing next to each other by pulling the plastic film through this row of knives with a pair of rollers, it is not uncommon for the plastic sheet to warp a little in the area in front of the knives and to form slight waves. This can make it difficult to divide into strips. Die Erfindung bezweckt, diese Schwierigkeiten zu verhindern. The invention aims to obviate these difficulties. Gemäss der Erfindung erfolgt das dadurch, dass sowohl vor als auch hinter den Messern (gesehen in der Bewegungsrichtung der Folie) ein Walzenpaar angeordnet ist, das die Folie transportiert, wobei das Walzenpaar, das vor den Messern liegt, und somit die Folie durch die Messer hindurchzieht, eine Umfangsgeschwindigkeit besitzt, die um einige Prozent grösser ist, als die des hinteren Walzenpaares. Diese Anordnung hat sich besonders bewährt bei Vorrichtungen, bei denen die Kunststoffolie durch eine Anzahl feststehender kreisförmiger Messer aufgeteilt wird, wobei die Folie zwischen diesen Messern und einer feststehenden Unterlage hindurchgezogen wird. According to the invention, this takes place in that a pair of rollers is arranged both in front of and behind the knives (seen in the direction of movement of the film) which transports the film, the pair of rollers in front of the knives and thus the film through the knife pulls through it, has a peripheral speed that is a few percent greater than that of the rear pair of rollers. This arrangement has proven particularly useful in devices in which the plastic film is divided by a number of fixed circular knives, the film being pulled through between these knives and a fixed base. Die Zeichnung zeigt ein Ausführungsbeispiel der Erfindung. The drawing shows an embodiment of the invention. Eine Folie 1 aus Kunststoff, beispielsweise eine 0,04 mm starke Folie aus Polyäthylen, wird von einem Wickel 2 durch ein Paar von Walzen 3, 4 mit einer Geschwindigkeit von 4 mimik. abgezogen, wobei die Umfangsgeschwindigkeit dieser beiden Walzen ebenfalls 4 m/Min. beträgt. Hinter dem Walzenpaar 3, 4 liegt eine Anzahl von kreisförmigen Messern 5, die auf einer nicht drehbaren Achse 6 derart befestigt sind, dass sie sich nicht drehen können. Unterhalb der Reihe der Messer 5 liegt eine feste Unterlage 7. Die Unterlage 7 besteht beispielsweise aus einer Metallplatte 7a, auf deren ebener Oberseite eine dünne, beispielsweise 1 mm dicke Schicht 7b eines sehr elastischen Stoffes, wie Gummi, befestigt, beispielsweise aufgeklebt ist, wobei auf die Schicht 7b eine dünne Metallfolie 7c aufgeklebt ist. A sheet 1 made of plastic, for example a 0.04 mm thick sheet made of polyethylene, is mimicked by a roll 2 through a pair of rollers 3, 4 at a speed of 4. deducted, the peripheral speed of these two rollers also 4 m / min. amounts. Behind the pair of rollers 3, 4 are a number of circular knives 5 which are fastened on a non-rotatable shaft 6 in such a way that they cannot rotate. Below the row of knives 5 is a solid base 7. The base 7 consists, for example, of a metal plate 7a, on the flat top of which a thin, for example 1 mm thick, layer 7b of a very elastic material such as rubber is attached, for example glued, with a thin metal foil 7c is glued to the layer 7b. Die Unterlage 7 wird durch Federn gegen die Messer 5 gedrückt. The base 7 is pressed against the knife 5 by springs. Die Kunststoffolie 1 wird zwischen den Messern 5 und der von unten gegen sie gedrückten Unterlage 7 in Streifen la, 1b usw. aufgeteilt. Ein Paar Walzen 8, 9 transportiert die Streifen mit einer Geschwindigkeit von 4,12 m/Min. weiter. Die Umfangsgeschwindigkeit der Walzen 8, 9 ist also um 3 o/o grösser als die der Walzen 3, 4. Der Durchmesser der Walzen 3, 4, 8, 9 kann beispielsweise 50-200 mm betragen. The plastic film 1 is divided into strips 1 a, 1 b etc. between the knives 5 and the substrate 7 pressed against it from below. A pair of rollers 8, 9 transport the strips at a speed of 4.12 m / min. continue. The peripheral speed of the rollers 8, 9 is therefore 3 o / o greater than that of the rollers 3, 4. The diameter of the rollers 3, 4, 8, 9 can be 50-200 mm, for example. Es hat sich überraschenderweise gezeigt, dass mit dieser einfachen Anordnung zuverlässig erreicht werden kann, dass die Folie 1 im Bereich unmittelbar vor den Messern 5 völlig gleichmässig und glatt läuft, und dass auf diese Weise auch sehr dünne Kunststofffolien von grosser Breite, z. B. von einer Breite von mehr als 1 m in schmale Streifen von nur wenigen Millimetern Breite störungsfrei aufgeteilt werden könr nen. It has surprisingly been shown that with this simple arrangement it can be reliably achieved that the film 1 runs completely evenly and smoothly in the area immediately in front of the knives 5, and that in this way even very thin plastic films of great width, e.g. B. from a width of more than 1 m into narrow strips of only a few millimeters wide can be divided without interference. PATENTANSPRUCH Vorrichtung zum Aufteilen einer Kunststoffolie durch eine Anzahl nebeneinander stehender Messer, dadurch gekennzeichnet, dass sowohl vor als auch hinter den Messern (5) ein mit Antrieb versehenes Walzenpaar (3, 4 bzw. 8, 9) vorgesehen ist, und die Vorrichtungen zum Antrieb dieser Walzenpaare der art sind, dass die Umfangsgeschwindigkeit des in Bewegungsrichtung der Folie (1) vorderen Walzenpaares (3, 4) um einige Prozent grösser ist als die des hinteren Walzenpaares (8, 9). PATENT CLAIM Device for dividing a plastic film by a number of juxtaposed knives, characterized in that a pair of rollers (3, 4 or 8, 9) provided with a drive is provided both in front of and behind the knives (5), and the devices for driving them Pairs of rollers are such that the peripheral speed of the front pair of rollers (3, 4) in the direction of movement of the film (1) is a few percent greater than that of the rear roller pair (8, 9).
CH146564A 1963-02-28 1964-02-07 Device for dividing a plastic film into narrow strips CH420585A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB0070907 1963-02-28

Publications (1)

Publication Number Publication Date
CH420585A true CH420585A (en) 1966-09-15

Family

ID=6976828

Family Applications (1)

Application Number Title Priority Date Filing Date
CH146564A CH420585A (en) 1963-02-28 1964-02-07 Device for dividing a plastic film into narrow strips

Country Status (5)

Country Link
BE (1) BE643816A (en)
CH (1) CH420585A (en)
FR (1) FR1383399A (en)
GB (1) GB985083A (en)
NL (1) NL6402020A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7123640U (en) * 1971-06-19 1971-11-11 General Corrugated Machinery DEVICE FOR LONGITUDINAL SLITTING AND CUTTING OF CORRUGATED CARDBOARD SHEETS
CH657304A5 (en) * 1980-09-16 1986-08-29 Gottlieb Looser DEVICE FOR DIVIDING OF TRACKS OR DISEASES suppression of plastic.
EP0710531B1 (en) * 1994-11-07 2000-04-12 Eastman Kodak Company Apparatus and method for slitting thin webs
DE19802310C2 (en) 1998-01-22 2002-06-20 Voith Paper Patent Gmbh Roll cutter for a material web
ES2208025B1 (en) * 2001-10-30 2005-04-01 Polyret Textil, S.A. MACHINE FOR KNITTING PLASTIC TAPE NETWORKS.
EP1647378B1 (en) * 2004-10-12 2010-04-14 Fosber S.P.A. Device for longitudinal cutting of a continuous web material, such as corrugated cardboard
DE102004061117A1 (en) * 2004-12-16 2006-07-06 Henkel Kgaa Cutting tool for film webs
FR2979334B1 (en) * 2011-08-31 2013-08-16 Spoolex METHOD AND DEVICE FOR ADJUSTING THE WIDTH OF A BAND OF DEFORMABLE MATERIAL TO BE CUT INTO MULTIPLE BANDLES OF THE SAME WIDTH OR NOT
ES2607637B1 (en) 2015-10-02 2018-01-15 Girnet Internacional, S.L. A procedure for obtaining one or several strips of a web material and a cutting die for the implementation of the procedure

Also Published As

Publication number Publication date
GB985083A (en) 1965-03-03
BE643816A (en) 1964-05-29
NL6402020A (en) 1964-08-31
FR1383399A (en) 1964-12-24

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