ES339747A1 - Improvements relating to the production of filament-like structures from synthetic materials - Google Patents

Improvements relating to the production of filament-like structures from synthetic materials

Info

Publication number
ES339747A1
ES339747A1 ES339747A ES339747A ES339747A1 ES 339747 A1 ES339747 A1 ES 339747A1 ES 339747 A ES339747 A ES 339747A ES 339747 A ES339747 A ES 339747A ES 339747 A1 ES339747 A1 ES 339747A1
Authority
ES
Spain
Prior art keywords
strip
strips
film
sheet
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.)
Expired
Application number
ES339747A
Other languages
Spanish (es)
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.)
Oerlikon Barmag AG
Original Assignee
Barmag Barmer Maschinenfabrik AG
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 Barmag Barmer Maschinenfabrik AG filed Critical Barmag Barmer Maschinenfabrik AG
Priority to ES352801A priority Critical patent/ES352801A1/en
Publication of ES339747A1 publication Critical patent/ES339747A1/en
Expired legal-status Critical Current

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
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D19/00—Shearing machines or shearing devices cutting by rotary discs
    • B23D19/04—Shearing machines or shearing devices cutting by rotary discs having rotary shearing discs arranged in co-operating pairs
    • B23D19/06—Shearing machines or shearing devices cutting by rotary discs having rotary shearing discs arranged in co-operating pairs with several spaced pairs of shearing discs working simultaneously, e.g. for trimming or making strips
    • B23D19/065—Shearing machines or shearing devices cutting by rotary discs having rotary shearing discs arranged in co-operating pairs with several spaced pairs of shearing discs working simultaneously, e.g. for trimming or making strips for cutting along lines not parallel to the longitudinal direction of the material, e.g. oblique or zig-zag cutting
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
    • B29C44/50—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying
    • B29C44/505—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying extruding the compound through a flat die
    • 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
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/0063—Cutting longitudinally
    • 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
    • B29C48/0012—Combinations of extrusion moulding with other shaping operations combined with shaping by internal pressure generated in the material, e.g. foaming
    • 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
    • B29C48/002—Combinations of extrusion moulding with other shaping operations combined with surface shaping
    • 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
    • B29C48/0021—Combinations of extrusion moulding with other shaping operations combined with joining, lining or laminating
    • 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
    • B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
    • 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
    • B29C48/05—Filamentary, e.g. strands
    • 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
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • 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
    • B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
    • 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
    • B29C48/13—Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes
    • 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
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0072—Roughness, e.g. anti-slip
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/731—Filamentary material, i.e. comprised of a single element, e.g. filaments, strands, threads, fibres

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Nonwoven Fabrics (AREA)
  • Supports For Plants (AREA)
  • Laminated Bodies (AREA)
  • Knitting Of Fabric (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

In a process for the production of filamentlike structures from synthetic materials in which a continuous sheet of film is cut longitudinally into strips which are then stretched and, if desired, twisted, the sheet of film is cut into strips with curved or serrated edges. The sheet of film may be partly stretched before it is cut up into individual strips, and the strips are suitably wound on winding mechanisms whose rotational speed is regulated in dependence upon the tension of the strips, into cross-wound packages or large cops of any structure, in particular in so-called parallel winding. In synthetic material strips so formed, at least one of the two longitudinal edges of the strip formed in the direction in which the sheet of film travels is curved or serrated. Preferably, both the longitudinal edges are curved or serrated, and the indentations in one of the longitudinal edges of the strip are arranged at such a distance apart from the indentations in the other longitudinal edge that a strip zone extending on a straight line in the longitudinal direction of the strip itself, is formed between the two rows of indentations. In both forms of strip, the curved or serrated edge form of the strip may be interrupted at intervals by a straight edge form. The intervals between the indentations or projections along one edge may vary in size and, in particular, increase and decrease in length. The indentations or projections along one edge may be displaced in relation to the indentations or projections along the other edge in the longitudinal direction of the strip. The indentations and projections along one edge of the strip may differ in shape from the opposite regions of the other longitudinal edge. Such a strip may consist of several interconnected plastics layers which differ in their physical properties. One or both outer layers of such a strip may consist of foamed plastic. In apparatus as shown (Fig. 1), a sheet of film 6 is extruded from the die 5 and solidified in cooling bath 7 fitted with deflector roll 8 to such an extent that it can be cut by cutting discs 13 on a cutter shaft 12 after passing a tension roller or bars 9 and a supporting roller 10 in a supporting frame 11. Cooling rollers may be used in place of the cooling bath 7. A motor 14 drives cutter shaft 12 through gear unit 15. The rotational speed of godets or rollers 16 of a stretching arrangement 17 governs the delivery rate of the sheet of film 6. In addition, the stretching arrangement 17, in conjunction with tension rollers 9 and supporting rollers 10 and 18, produces the tautness in the sheet of film required for cutting in the proximity of the cutting discs 13 between the supporting rollers 10 and 18. Cutting discs 13 are mounted on cutter shaft 12 in such a way that the wavy lines of the cutting edges extend parallel to one another. In order, however, to obtain strips in which the wavy lines of the cut edges are not parallel to one another, i.e. in which the amplitudes of the waves or serrations are staggered in relation to one another, the cutting discs 13 may alternatively be so mounted on cutter shaft 12 that they are offset at a certain angle relative to one another. Alternatively, a non- rotatable cutter beam in which knives or razor blades are clamped may be used in place of cutter shaft 12. To produce the curved wavy or serrated cut edges of the strips of film, the cutter beam is reciprocated transversely of the direction in which the sheet of film is travelling, e.g. by means of a crank drive. After leaving the last roller 16 of stretching arrangement 17 the film, cut into strips 19, travels through heating zone 20 before it is taken up by rollers 21 of a stretching arrangement 22. Rollers 21 rotate at a higher speed than the rollers 16 so that the ratio between the two rotational speeds governs the degree of stretching of the strips 19 which can vary between 1: 4 and 1:12. Strips 19 are guided from stretching arrangement 22 to machine frame 23 with as many winding heads 24 as there are strips. Before strips 19 are wound on to the packages 25 of winding heads 24, they travel over a comb-like guide bar 26 fixed to the machine frame 23, a guide roller 27, a so-called dancer arm 28 and another guide roller 29, to the thread guide of a traversing mechanism 30 which lays the individual strips 19 on their respective packages 25. Dancer arm 28 senses the tension of the particular strip 19 and regulates the rotational speed of the package 25 and the speed of reciprocation of the traversing thread guide by way of a separate control unit. Fig. 3 shows a strip cut out of a non- laminated sheet of film before stretching, and Fig. 4 shows such a strip after stretching Fig. 5 is a longitudinal section through an unstretched strip consisting of a carrier film and a plastics layer foamed on to it, and Fig. 6 is a longitudinal section through such a strip after stretching. Examples relate to the production of polypropylene filament-like structures and foamed polypropylene filament-like structures.
ES339747A 1966-05-14 1967-04-25 Improvements relating to the production of filament-like structures from synthetic materials Expired ES339747A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES352801A ES352801A1 (en) 1966-05-14 1968-04-16 A procedure for the manufacture of wiring structures from synthetic materials. (Machine-translation by Google Translate, not legally binding)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB0087142 1966-05-14

Publications (1)

Publication Number Publication Date
ES339747A1 true ES339747A1 (en) 1968-08-16

Family

ID=6983674

Family Applications (3)

Application Number Title Priority Date Filing Date
ES339747A Expired ES339747A1 (en) 1966-05-14 1967-04-25 Improvements relating to the production of filament-like structures from synthetic materials
ES352801A Expired ES352801A1 (en) 1966-05-14 1968-04-16 A procedure for the manufacture of wiring structures from synthetic materials. (Machine-translation by Google Translate, not legally binding)
ES1968137863U Expired ES137863Y (en) 1966-05-14 1968-10-31 A STRIP OF SYNTHETIC MATERIAL.

Family Applications After (2)

Application Number Title Priority Date Filing Date
ES352801A Expired ES352801A1 (en) 1966-05-14 1968-04-16 A procedure for the manufacture of wiring structures from synthetic materials. (Machine-translation by Google Translate, not legally binding)
ES1968137863U Expired ES137863Y (en) 1966-05-14 1968-10-31 A STRIP OF SYNTHETIC MATERIAL.

Country Status (6)

Country Link
BE (1) BE696679A (en)
DE (1) DE1660221C3 (en)
ES (3) ES339747A1 (en)
FR (1) FR1522903A (en)
GB (1) GB1109750A (en)
NL (1) NL6706496A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3522637A (en) * 1968-03-06 1970-08-04 George C Brumlik Self-gripping fastening filament
US20140208905A1 (en) * 2013-01-31 2014-07-31 Anthony Galea Method and apparatus for fabricating stretch film rolls
US20150284207A1 (en) * 2013-01-31 2015-10-08 Anthony Galea Method and apparatus for fabricating stretch film rolls
CN108656587A (en) * 2018-05-30 2018-10-16 平湖金都电缆材料有限公司 A kind of production unit of plastic net tearing film
CN109399314B (en) * 2018-10-08 2020-06-30 东莞市禾成环保材料科技有限公司 Slitting and winding method and device of base film for water transfer printing
CN114775072A (en) * 2022-05-12 2022-07-22 北京化工大学 Polymer melt differential in-situ spinning device
CN116197452B (en) * 2023-04-28 2023-07-07 昆明天谋科技有限公司 Lithium belt calendaring and shearing mechanism

Also Published As

Publication number Publication date
ES137863U (en) 1968-12-01
GB1109750A (en) 1968-04-10
ES137863Y (en) 1969-06-01
DE1660221A1 (en) 1971-05-06
FR1522903A (en) 1968-04-26
ES352801A1 (en) 1969-09-01
DE1660221B2 (en) 1974-03-07
DE1660221C3 (en) 1974-10-03
NL6706496A (en) 1967-11-15
BE696679A (en) 1967-09-18

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