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WO2002042052A1 - Procede de production en continu de pieces a fermeture semi-alternee - Google Patents

Procede de production en continu de pieces a fermeture semi-alternee Download PDF

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Publication number
WO2002042052A1
WO2002042052A1 PCT/EP2001/012744 EP0112744W WO0242052A1 WO 2002042052 A1 WO2002042052 A1 WO 2002042052A1 EP 0112744 W EP0112744 W EP 0112744W WO 0242052 A1 WO0242052 A1 WO 0242052A1
Authority
WO
WIPO (PCT)
Prior art keywords
shaping
parts
strands
adhesive fastener
adhesive
Prior art date
Application number
PCT/EP2001/012744
Other languages
German (de)
English (en)
Inventor
Axel Schulte
Original Assignee
Gottlieb Binder Gmbh & Co
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 Gottlieb Binder Gmbh & Co filed Critical Gottlieb Binder Gmbh & Co
Publication of WO2002042052A1 publication Critical patent/WO2002042052A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B18/00—Fasteners of the touch-and-close type; Making such fasteners
    • A44B18/0046—Fasteners made integrally of plastics
    • A44B18/0049—Fasteners made integrally of plastics obtained by moulding processes
    • 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
    • B29C48/06—Rod-shaped
    • 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
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/303—Extrusion nozzles or dies using dies or die parts movable in a closed circuit, e.g. mounted on movable endless support
    • 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
    • B29L2031/727—Fastening elements
    • B29L2031/729—Hook and loop-type fasteners

Definitions

  • the invention relates to a method for the continuous production of adhesive fastener parts.
  • DE 198 28 856 C1 discloses a method for producing an adhesive fastener part with a plurality of adhesive fastener elements in one piece with a support part in the form of stems having end-side thickenings, in which a thermoplastic in the plastic or liquid state the gap between a printing tool and a molding tool is supplied in the form of rollers, the rollers being driven in such a way that the carrier part is formed in the gap and is conveyed in a transport direction, in which a sieve having continuous cavities is used as the shaping element on the molding tool and in which the adhesive fastener elements thereby are formed that the thermoplastic material in the cavities of the sieve at least partially hardens.
  • the object of the invention is to create a method for the continuous production of adhesive fastener parts with which high production speeds can be achieved and which allows fastener elements with almost any geometries to be provided with carrier parts in a cost-effective manner connect.
  • a related problem is solved by a method having the features of claim 1 in its entirety.
  • at least two shaping strands are provided, each consisting of individual shaping parts which are assigned to one another in groups and held together via a predeterminable shaping path and provided with a molding material in such a way that the separating fastener part is obtained after the groups of shaping parts have been separated becomes.
  • a molding material preferably in the form of thermoplastic material, is introduced between the molding strands, the individual jaw-like molding parts causing the molding process for the adhesive fastener part over a predefinable molding path and as soon as the groups of molding parts are separated from one another are, the finished Haftverschfuß part at the end of the shaping section can be continuously removed for later use.
  • the length of the shaping section is dimensioned such that a secure shaping is to be obtained and that a certain remaining running section is available, which is used to cool the adhesive closure part until its defined shaping.
  • two mutually associated shaping strands are provided and the individual shaping parts are formed from shaping jaws in such a way that the shaping jaws of one shaping strand at least partially form the carrier part for the adhesive fastener part and the shaping jaws of the other shaping strand at least form the fastener elements of the fastener part. That way among other things, a safe demolding process is ensured at the end of the shaping section.
  • the shaping jaws which at least partially form the carrier part of the adhesive fastener, are also used to produce adhesive fastener elements which are the same or different from the fastener elements which are produced with the shaping jaws of the other shaping strand.
  • so-called back-to-back adhesive fastener parts can be produced which have adhesive fastener elements on one side as well as on the opposite other side of the carrier part, which can also be different in the present manufacturing method.
  • hooks can then be present on one side of the carrier part as adhesive closure elements and mushroom-like hooking heads or the like on the opposite side.
  • three or more shaping strands are arranged opposite one another, which exclusively produce the adhesive fastener elements, a hollow or solid profile being produced between the shaping strands, with which the touch fastener elements are integrally connected.
  • the adhesive fastener elements can then be arranged directly on tubular cable clamps, cable sleeves or the like, for example.
  • fastening professionals of this type can be provided on the upper side with adhesive fastener elements, such as are required, for example, in the automotive or other vehicle industry in order to detachably attach headliners, upholstery parts, upholstery cover materials, etc. to complementary parts.
  • the adhesive closure elements are preferably formed from stems, hooks, double hooks or other closure heads, and, as already stated, the carrier part can be designed as a pure carrier tape or as a carrier profile. If the adhesive fastener elements initially consist only of stems, there is the possibility of connecting a post-forming process by means of calender rolls or the like, in which the stem ends and part of the respective stem itself are transformed into a closure head.
  • the molding material is preferably formed from a thermoplastic material and introduced via an extruder and feed device at the beginning of the molding section between the adjacent molding strands with their molding parts. Since the respective shaping strands continuously and continuously enable the production of adhesive fastener parts, it is advantageous if the starting material can be delivered continuously in the form of a thermoplastic material via the extruder and feed device.
  • each shaping strand are preferably guided in a closed orbit and driven by a central drive in such a way that the shaping parts Jose pass the applied drive power to the shaping part which is arranged downstream in the circumferential direction.
  • safe driving of the shaping strands is ensured with low driving forces and therefore with low driving energies. Since the shaping parts only come together loosely, worn shaping parts can be exchanged easily and very quickly.
  • the most diverse types of shaping parts that is to say with the most varied of cavities, in any order which can be predetermined in order to obtain adhesive fastener parts which are equipped with the most varied types of adhesive fastener elements.
  • the direction of penetration of the plastic material between the shaping strands is preferably selected parallel to their direction of rotation; there is basically, but also the possibility of introducing the plastic material transversely to this direction of rotation between the free gaps of the groups of assignable shaping parts.
  • the feature configurations described above allow a very fast-running manufacturing operation.
  • the shaping parts with their cavities for producing the touch-and-close fastener parts are connected to a device that generates pressure medium and / or a vacuum, a heating and / or cooling device being additionally or alternatively provided for the shaping parts. If a vacuum generating device is used, this improves the flow behavior of the plastic material into the cavities of the molding parts. If a pressure medium is introduced into the cavities, this may improve the removal behavior for the adhesive fastener elements from the shaping parts.
  • the shaping process can be controlled further by means of a heating or cooling device, the plastic material being able to be kept plastifiable for longer during the heating, and the cooling distance can be shortened by cooling and the finished adhesive fastener part can be demolded more quickly from the device with the shaping strands.
  • the shaping parts are modular, the type of cavities producing the fastener parts is changed by the change of shaping inserts, so that basically with just one corrugator device, a multitude of different fastener parts with different fastener elements can be produced.
  • FIG. 1 shows a perspective view of a device for
  • FIG. 2 shows a perspective view of two shaping parts of the shaping strands according to FIG. 1 forming a group
  • 3a and 3b show a section through two adjoining shaping parts for producing a first embodiment of a touch-and-close fastener part or, in an enlarged view, a section of the circle labeled "X";
  • 4a and 4b show a section through two abutting shaping parts for producing a second embodiment of a touch-and-close fastener part or, in an enlarged view, a section of the circle labeled "X";
  • 5a and 5b show two forming parts with cavities in the form of double hooks forming a group as a third embodiment for an adhesive fastener part to be produced;
  • the device according to FIG. 1 is used to carry out a method for the continuous production of adhesive fastener parts 10.
  • the device has two shaping strands 12, 14, the right shaping strand 14 being longer than the left shaping strand 1.2 when viewed in the direction of FIG. 1 ,
  • the arrangement in question makes it possible to arrange a tapping roller 16 below the shaping strand 12, which is able to demold the adhesive fastener part 10 from the right shaping strand 14 in the manner of a positive guide.
  • the two shaping strands 12, 14 essentially each consist of individual shaping parts 18, which are assigned to one another in groups and are operatively connected to one another via a predeterminable shaping section 20.
  • the shaping section 20 is essentially through. twelve groups of shaping parts 18 are formed, which are arranged in rows one behind the other, each abutting along their edges.
  • the relevant shaping section 20 can be significantly lengthened or shortened compared to the embodiment shown in FIG.
  • the actual molding material for producing the adhesive closure part 10 can preferably consist of a thermoplastic material, for example of a polyamide material; but plastic materials such as PVC and the like are also conceivable.
  • the molding material is passed on via an extruder device 22 to a feed device 24, which is provided on its underside facing the two shaping strands 12 and 14 with an insertion nozzle 26 in order to feed the plastic material to the shaping process continuously and in a metered manner.
  • each shaping strand 12, 14 are guided in a closed orbit, the circulating routing in this regard being only partially visible with regard to the two covers 28.
  • Each shaping strand 12, 14 is seen by itself or jointly driven by a central drive, not shown in detail, in such a way that the shaping parts 18 pass the applied drive power loosely butting against the shaping part 18, which is arranged downstream in the direction of rotation.
  • a central drive not shown in detail
  • the manufacturing device according to FIG. 1 is constructed in a comparable manner from the basic concept, it will only be dealt with here at this point insofar as it is essential for explaining the Manufacturing method according to the invention.
  • the selected drive direction is clockwise for the molding strand 12 and counterclockwise for the molding strand 14.
  • the two shaping parts 18 forming a group, which are closest to the insertion nozzle 26, are filled with the molding material and then moved from top to bottom, continuously via the shaping strands 12, 14 in each case a new pair of shaping parts 18 in the region of the insertion nozzle 26, from which the plastic material flows continuously, is closed.
  • the two shaping parts 18, which form a shape then move away from one another and release the adhesive closure part 10 for diversion around the tap roller 16.
  • the direction of introduction of the plastic material between the shaping strands 12, 14 is therefore selected such that it runs parallel to the direction of rotation thereof.
  • the insertion nozzle 26 extending transversely to the drive direction and to inject the plastic material into the shaping parts 18 from the side.
  • a prerequisite for a transverse arrangement in this respect is then to arrange the cavities of the shaping parts 18, which are responsible for the production of the later fastener elements, likewise in the transverse direction and therefore in the fluid direction for the plastic material within the shaping device.
  • the device according to FIG. be aligned zontally, so that the shaping section is then perpendicular to the plane of the drawing.
  • the device according to FIG. 1 can also have a pressure medium generating and / or a vacuum generating device in the usual and therefore not described in more detail and additionally or alternatively for the shaping parts 18 with a heating and / or cooling device (not shown in detail).
  • the shaping parts 18 with their cavities can be connected to a vacuum generating device, the molding of the plastic material into the cavities can be facilitated by generating a negative pressure in the shaping parts 18.
  • a device producing pressure medium in particular a device producing compressed air
  • the demolding process can be facilitated under the action of the pressure medium at the end of the shaping.
  • a heating device is used, the plastic material can be kept in the plastic state for a longer time, which also facilitates the inflow of the plastic material into the assigned cavities.
  • a cooling device leads to the faster hardening of the plasticized plastic material in the shaping parts 18 and consequently to a shortening of the shaping section 20, which would otherwise have to be larger in size without cooling device for a longer cooling time.
  • FIG. 2 two shaping parts 18 assigned to one another are designed as shaping jaws 30.
  • the shaping jaws 30 are designed in the manner of rectangular blocks and are encompassed by the bow-shaped shaping parts 18 on their longitudinal edges.
  • the usual screws 32 are used to fix the shaping jaws 30 in the shaping parts 18.
  • the shaping jaws 30 take Then, within the shaping parts 18, an installation position, as shown in section in FIG. 3a, in which the two shaping parts 18 according to FIG. 1 lie against one another with their mutually facing end faces. Looking towards FIG.
  • the cavities are arranged in the form of conical stem recesses 34 in the left-hand shaping jaw 30 and the opposing right-hand shaping jaw 30 has a plate-like depression 36 which, when filled with plastic material, forms the carrier tape for the adhesive closure part 10.
  • the cavities 34 for the later stem parts are therefore conical in order to facilitate the demolding process for the plastic material at the lower end of the molding device according to FIG. 1.
  • these can also be used be provided with fluid-conducting longitudinal channels 38 at their mutually facing edges. If an adhesive fastener part 10 with egg n.er configuration on shaping parts 18 according to FIGS. 2, 3a and 3b is produced, this results in an adhesive fastener part 10 with a band-like carrier part, on which tapered stem parts are arranged. If the relevant adhesive closure part 10 is subjected to a post-forming process with calender rollers, the stem ends are shaped by the shaping roller into hooking heads in the manner of hooking mushrooms. Such calendering processes are common in the manufacture of touch-and-close fastener parts, so that no further details will be given here.
  • Guide surfaces 40 formed on the shaping parts 18 serve as a guiding device so that the individual shaping parts 18 can be guided in a defined manner along the circumferential tracks of the shaping device.
  • the shaping jaws 30 are guided away from one another in a spreading manner and a continuously increasing receiving gap is formed in this way, which leads to low removal forces, but at the same time ensures a gentle removal process, so that the device can also be operated with high strip and rotational speeds can be operated.
  • FIGS. 4a and 4b largely corresponds to the described embodiment according to FIGS. 2, 3a and 3b; Instead of a band-like carrier part according to FIG. 3a, the depression 36 according to FIGS. 4a, 4b is widened in such a way that, seen in cross section, a kind of bone-like profile structure is formed or a longitudinal band results with circularly shaped edge beads.
  • the fastening stems are connected to a profile part, which can be inserted, for example, into a correspondingly shaped recess in a cushion part or the like, in order for example to use a cushion cover with loop elements on the adhesive fastener elements from the mounting brackets.
  • the adhesive fastener part 10 its adhesive fastener elements can therefore be connected in one piece to a profile body.
  • a further type of adhesive fastener parts 10 can be produced, which is provided on both sides along a carrier tape with double hook elements for the production of which the cavities 42 are used.
  • the cavities 42 in question are formed from shaping plates 44, wherein, in an alternating sequence, there are plates having cavities 42 and closed boundary plates in order to separate the later double hook elements, which are arranged in series one behind the other. If the shaping plates 44 mentioned are lined up along T-profiles 46, they can be exchanged for other plates, not shown in more detail, with other cavities, in order to be able to implement a variety of different hooking elements with the shaping device.
  • the shaping plates 44 mentioned thus form a type of shaping insert which can be exchanged within the shaping jaws 30. It would be possible, for example, to completely replace the rear row of cavities 42 with self-contained boundary plates in the illustration according to FIGS. 5 a, b, looking in the direction of the figures, in order to obtain an adhesive closure part 10 that only opens one side is provided with the double hook elements as they result from the front row of cavities 42.
  • the shaping strand 12 with its shaping parts 18 would then produce the double hook elements, whereas the shaping strand 14 with its shaping parts 18 would in turn produce the carrier part or a carrier profile.
  • it would accordingly also be possible in the embodiment according to FIGS. 3a and. 4a likewise provide conical recesses for the stem parts on the opposite side.
  • the Shaped jaws 30 with their cavities can also be designed such that, for example, hooking stems result on one side and double hooks on the other side of the carrier part, formed in the recess 36, as shown in FIGS. 5a, 5b. 5
  • cavities 42 for the manufacture of the adhesive fastener elements there are rod-shaped, cylindrical recesses which are formed at their free end with an essentially circular head part 54.
  • Various metal mold plates can in turn be used to produce the cavities 42 according to the enlarged illustration according to FIG. 6b
  • the plastic material used in each case is mixed with a blowing agent, for example in the form of CO 2 -containing granules, which then releases a blowing gas in the form of CO 2 within the plastic material under the influence of temperature and shaping. That then foamed plastic material can be removed from the device without damage and, moreover, essentially silent closures are obtained, since the air pockets have a damping effect during the opening and closing process of the adhesive closure.
  • the aforementioned fastener elements can be detachably connected to the usual loop material of another fastener part in order to produce a conventional fastener.
  • thermosets any thermoplastics, biodegradable plastics, thermally and / or radiation-crosslinkable thermosets can be used as the plastic material. If thermosets are used, the extruder device 22 is replaced by a liquid supply system and the curing process takes place directly via the heatable shaping elements 18. The shaping parts 18 arranged adjacent to one another are loose, but nevertheless held together in a sealing manner, so that it is ensured that this Plastic material due to be shaped cannot leave the molding device unintentionally.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Slide Fasteners, Snap Fasteners, And Hook Fasteners (AREA)

Abstract

L'invention concerne un procédé de production en continu de pièces à fermeture semi-alternée (10) avec au moins deux barres de façonnage (12, 14) comprenant chacune des parties individuelles de façonnage (18), qui sont associées mutuellement par groupes et sont maintenues les unes aux autres sur une section de façonnage (20) prédéfinissable, tout en étant munies d'un matériau de façonnage, de sorte à obtenir la pièce à fermeture semi-alternée (10), après séparation des groupes sur des parties de façonnage (18). Ledit procédé permet d'obtenir des vitesses de production très élevées pour des pièces à fermeture semi-alternée et d'assembler de manière économique des pièces à fermeture semi-alternée d'approximativement n'importe quelle géométrie en soi avec des parties support.
PCT/EP2001/012744 2000-11-24 2001-11-03 Procede de production en continu de pieces a fermeture semi-alternee WO2002042052A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10058890.5 2000-11-24
DE10058890A DE10058890C1 (de) 2000-11-24 2000-11-24 Verfahren zum fortlaufenden Herstellen von Haftverschlußteilen

Publications (1)

Publication Number Publication Date
WO2002042052A1 true WO2002042052A1 (fr) 2002-05-30

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ID=7664868

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2001/012744 WO2002042052A1 (fr) 2000-11-24 2001-11-03 Procede de production en continu de pieces a fermeture semi-alternee

Country Status (2)

Country Link
DE (1) DE10058890C1 (fr)
WO (1) WO2002042052A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021000393A1 (de) 2021-01-27 2022-07-28 Gottlieb Binder Gmbh & Co. Kg Befestigungseinrichtung nebst Verfahren zum Herstellen einer solchen Befestigungseinrichtung und ein mit einer solchen Befestigungseinrichtung hergestelltes Befestigungssystem

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3557404A (en) * 1967-08-26 1971-01-26 Zippel & Co Kg R Arrangements for the continuous manufacture of moulded articles
US3881851A (en) * 1972-12-13 1975-05-06 Telecommunications Sa Machines for forming insulation for high frequency transmitting coaxial lines
US4050873A (en) * 1975-03-17 1977-09-27 Brumlik George C Train molding apparatus
FR2360405A1 (fr) * 1976-05-10 1978-03-03 Verges Paul Dispositif de moules flexibles utilises dans la fabrication d'objets creux a partir d'une paraison tubulaire en matiere thermo-plastique
US4162757A (en) * 1976-11-24 1979-07-31 Lemelson Jerome H Manufacturing apparatus
US5840089A (en) * 1994-01-13 1998-11-24 Minnesota Mining And Manufacturing Company Method of making an abrasive article

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4210482A1 (de) * 1992-03-31 1993-10-07 Wilhelm Hegler Verfahren und Vorrichtung zur fortlaufenden Herstellung eines Verbundrohres mit Rohr-Muffe
DE19828856C1 (de) * 1998-06-29 1999-10-07 Binder Gottlieb Gmbh & Co Verfahren zur Herstellung eines Haftverschlußteiles

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3557404A (en) * 1967-08-26 1971-01-26 Zippel & Co Kg R Arrangements for the continuous manufacture of moulded articles
US3881851A (en) * 1972-12-13 1975-05-06 Telecommunications Sa Machines for forming insulation for high frequency transmitting coaxial lines
US4050873A (en) * 1975-03-17 1977-09-27 Brumlik George C Train molding apparatus
FR2360405A1 (fr) * 1976-05-10 1978-03-03 Verges Paul Dispositif de moules flexibles utilises dans la fabrication d'objets creux a partir d'une paraison tubulaire en matiere thermo-plastique
US4162757A (en) * 1976-11-24 1979-07-31 Lemelson Jerome H Manufacturing apparatus
US5840089A (en) * 1994-01-13 1998-11-24 Minnesota Mining And Manufacturing Company Method of making an abrasive article

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