US3654037A - Method and apparatus for making plastic tubes - Google Patents

Method and apparatus for making plastic tubes Download PDF

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Publication number
US3654037A
US3654037A US853584A US3654037DA US3654037A US 3654037 A US3654037 A US 3654037A US 853584 A US853584 A US 853584A US 3654037D A US3654037D A US 3654037DA US 3654037 A US3654037 A US 3654037A
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foil
forming cylinder
cylinder
carriers
piston
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US853584A
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English (en)
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Fritz Lieblang
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Individual
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Individual
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Priority claimed from DE19671704251 external-priority patent/DE1704251A1/de
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31C—MAKING WOUND ARTICLES, e.g. WOUND TUBES, OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31C1/00—Making tubes or pipes by feeding at right angles to the winding mandrel centre line
    • 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
    • B29C31/00—Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
    • B29C31/002—Handling tubes, e.g. transferring between shaping stations, loading on mandrels
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/36—Bending and joining, e.g. for making hollow articles
    • B29C53/38—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges
    • B29C53/40—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges for articles of definite length, i.e. discrete 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
    • B29C57/00—Shaping of tube ends, e.g. flanging, belling or closing; Apparatus therefor, e.g. collapsible mandrels
    • B29C57/12—Rim rolling
    • 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
    • B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00—Producing tubular articles
    • B29D23/20—Flexible squeeze tubes, e.g. for cosmetics
    • 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
    • B29C2793/0081—Shaping techniques involving a cutting or machining operation before 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
    • B29C2795/00—Printing on articles made from plastics or substances in a plastic state
    • B29C2795/007—Printing on articles made from plastics or substances in a plastic state after 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
    • 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
    • B29C48/001—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
    • B29C48/07—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
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • 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
    • B29L2023/00—Tubular articles
    • B29L2023/20—Flexible squeeze tubes, e.g. for cosmetics
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1036—Bending of one piece blank and joining edges to form article
    • Y10T156/1038—Hollow cylinder article
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/12—Surface bonding means and/or assembly means with cutting, punching, piercing, severing or tearing
    • Y10T156/13—Severing followed by associating with part from same source

Definitions

  • the present invention relates to a method for manufacturing tubes, in particular tubes, which are bent from a foil of plastic material, which is to be flanged on one or both ends and which may be closed by a lid on one or both ends, the ready tube is mainly used for packing purposes.
  • the invention is also concerned with suitable apparatus which may be em ployed in carrying out such method.
  • such tubes have been made hitherto by cutting a piece of foil from a roll of plastic foil, the width of said piece of foil being equivalent to the circumference of the tube to be formed, the piece of foil being conveyed to a forming cylinder over which said piece of foil was folded and the overlapping edges of the foil were glued together by applying a solvent or an adhesive.
  • the tube of foil, produced by this method was cut to the desired length of the tube by a cutting device.
  • These tubes were conveyed to a flanging machine, arranged separately from the aforementioned forming cylinder and the tube was inserted by hand into said machine.
  • the flanging of the edges of the tube was effected by heated flanging disks of known design, equipped with annular flanging grooves, which disks were moved under pressure against the ends of the tube, and a rotating motion was carried out simultaneously.
  • the transporting of the preformed tubes from the tube folding device to the flanging machine necessitated on one hand an additional operating time and on the other hand, additional labor was required to run both machines.
  • the arrangement of separate machinery used hitherto has the disadvantage of an uneconomical production.
  • a further disadvantage of the known flanging machine is the fact, that the flanging disks could not be heated to a temperature higher than the yield point of the material of the plastic foil, otherwise the flowing material would follow the rotating flanging disks, thus preventing the formation of a perfect flange.
  • An object of the present invention is a method by which the formation of the tube from the foil and also the flanging operation is accomplished in a single working operation carried out on one end the same machine, thus reducing the operating time and labor which was required for the production of such tubes as it was hitherto and producing more economical.
  • a further advantage of the method according to the invention is the fact, that the flanging operation is effected by means of flanging disks which carry out an oscillating movement.
  • the present invention is a process for manufacturing tubes bent from a foil of plastic material, which are flanged on one or both ends and which may be closed by a lid on one or both ends characterized in that a piece of foil which is cut to the required length is introduced into a longitudinal slot of a forming cylinder, the diameter of which is equivalent to the diameter of the tube to be formed and that the foil is ejected out of said forming cylinder by axially shifting said foil whilst applying a stream of adhesive to the jointing ends of the tube which is formed from said foil and that the ejected tube is received by conveyor means which transfer said tube to a flanging apparatus by intermittently shifting or rotating said tube, in which flanging apparatus one or both'ends of said tube are provided with flanges and that the flanging operation is carried out by flanging disks, exerting an axial pressure on said end or ends of said tube and that said flanging tubes carry out an oscillating movement simultaneously.
  • a further object of the invention is an apparatus for carrying out the method, characterized in that a forming cylinder is provided with a longitudinal slot extending over the total length of said cylinder and' that said longitudinal slot is adapted to receive a foil and that inside of said cylinder a reciprocating piston is provided, and that on one end of said cylinder conveyor means are provided, which consist of two magnets, adapted to exert an axial movement and oscillating movements on said flanging disks.
  • the apparatus is characterized in that the piston inside the forming cylinder comprises a bottom plate, having a diameter smaller than the inner diameter of said forming cylinder and a head piece of the same diameter which is shiftable in axial direction relative to said bottom plate against the resistance of a spring and that the bottom plate is equipped with a set of laminated springs arranged around the periphery of said bottom plate, and that the laminatedsprings spanthe annual gap existing between the piston and the inner wall of the forming cylinder and that said springs extend as far as to the head piece of the piston.
  • the apparatus is characterized in that the forming cylinder is provided with a stop piece on one of its free ends, having the diameter of the piston which is equipped with an annular spiral spring, which is in contact with the inner wall of the forming cylinder, and that an adjusting device is provided at the free end of the forming cylinder, adapted to change the diameter of the delivery opening of the forming cylinder and that a nozzle is arranged at the carrier end of the longitudinal slot of the forming cylinder through which nozzle a stream of a solvent or of an adhesive is pumped by means of an intermittently driven pump and that said stream of solvent or adhesive is applied on to the foil.
  • the apparatus is also characterized in that pawls are arranged on working tables which receive the carriers, which are adapted to open the collet chucks and that said pawls are preferably actuated by electromagnetic means, and that, a rotating separating knife is provided, which is arranged vertically to the axis of the tube and which is adapted to be moved into the path of conveyance of the carriers for the urpose of cutting through a flanged tube received in said carriers, and that an electrical control device of known design is provided, controlling the sequence of actuation of the piston, the pump, the carriers, the pawls and the flanging disks and that a working table is provided, leading to the longitudinal slot of the forming cylinder, which is equipped with conveyor rollers and a deflection roll which facilitate the guiding of the foil into the said slot and that the working table is preceded by a cutting device and a printing apparatus for applying an imprint on the foil and that the pieces of foils are cut off from a roll of
  • FIG. 1 is a plan view of the apparatus in diagrammatical representation
  • FIG. 2 is a side view ofFIG. l, I
  • FIG. 3 is a plan view of the driving device of the flanging disks
  • FIG. 4 is a sectional view along the lines A-B in FIG. 1,
  • FIG. 5 is a sectional view along the line C-D in FIG. 1, with the caller chucks in locked position
  • FIG. 6 is a view according to FIG. 5, but with the collet chucks in open position
  • FIG. 7 is a view of the flanging disk
  • FIG. 8 is a sectional side view of FIG. 7,
  • FIG. 9 is an enlarged partial view of FIG. 8,
  • FIG. 10 is a cross-sectional view of the forming cylinder with the piston
  • FIG. 11 is a longitudinal section view of the forming cylinder
  • FIG. 12 is an enlarged partial view of FIG. 11,
  • FIG. 13 is a schematical representation of the working table
  • FIG. 14 is a schematical representation of an automatic foil conveyor.
  • a device comprises two-work tables l and 2, which are arranged shiftable against each other and connected by connecting pieces 3.
  • Work table 1 supports a folding cylinder 4, with a longitudinal slot 5, into which a piece of foil 11, shown in FIG. 14 can be inserted.
  • a piston 6, Inside the cylinder 4 is a piston 6, which is adapted to carry out a reciprocating movement inside said cylinder 4; said piston 6 is driven by a conventional driving device by means of gear wheels 9 which engage in a piston rod 8.
  • the length of stroke of the piston 6 inside the casing 4 is adjustable to the desired length of stroke by means of adjustable limit switches. As shown in FIG.
  • the piston 6 comprises a bottom plate 12 and a head piece 13; said head piece 13 is shiftably mounted on a pin 14 on which it can be moved against the resistance of a compression spring 15.
  • a set of laminated spring 16 are fastened around the circumference of the bottom plate 12 and are arranged in axial direction of the cylinder 4. The lateral edges of the laminated springs 16 are supported on the inner wall of the cylinder 4, thus bridging the annular gap between the piston 6 and the inner wall of the cylinder 4. The ends of the laminated springs 16 extend as far as to the head piece 13 of the piston 6.
  • a piece of foil 11 is inserted through the longitudinal slot 5 into the cylinder 4, where it assumes the form ofa tube, said tube will be ejected through the ejection opening of the cylinder 4 by the movement of the piston 6, aided by the laminated springs 16.
  • the head piece 13 which is slidably mounted on a guide rod 17, extending along the center of the cylinder 4, comes in contact with an end piece 18, which is fastened to the end of the guide rod 17.
  • the head piece 13 is pressed back against the end piece 18, whereby the resistance of a spring is overcome, so that the foil, which is formed into a tube is entirely ejected from the cylinder 4 by aid of the laminated springs 16.
  • annular coil spring 19 is received, which is supported on the inner wall of the cylinder 4.
  • the annual coil spring 19 serves to fit the foil to be ejected to the exact diameter of the cylinder 4.
  • the cylinder 4 is also equipped with an adjusting device, which is not shown in the drawings, which enables to decrease of the width of the longitudinal slot 5, thereby also decreasing the LB. of the cylinder 4.
  • the alteration of the diameter permits the production of tubes made of foil and also of the lids for closing the ends of said tube, the diameter of the lids must be slightly larger.
  • a nozzle 20 is arranged in the vicinity of the ends of the longitudinal slot 5 of the cylinder 4, through which a stream of adhesive is fed by means of an intermittently actuated pump 21 in such a manner, that a stream of adhesive emerges from said nozzle and is applied to the overlapping lateral edges of the foil, which stream of adhesive is equally distributed along said edges and by which stream the foil is glued together in the form ofa tube.
  • a motor 26 is mounted, which serves as a servo motor, driving a shaft via a gear unit.
  • a carrier 22 is firmly secured and a carrier 23 is slidably attached to it.
  • the foil, which was formed into a tube 24 is inserted between the carriers 22 and 23.
  • the carriers 22 and 23, as shown in FIG. 5 and 6, are equipped with two collet chucks 28 and 29. While the carriers 22 and 23 are in their receiving position, one of the collet chucks 28 and 29 is situated close to the end of the cylinder 4, while the other chuck of the collet chucks 28 and 29 is situated between the flanging disks 34.
  • the component 29 of the collet chuck is provided with a cam 30, which engages on the pawl 31 when the receiving position is attained and the collet chucks 28 and 29 are opened by action of the spring 33.
  • a cam 30 engages on the pawl 31 when the receiving position is attained and the collet chucks 28 and 29 are opened by action of the spring 33.
  • an electromagnet 32 is exited and the pawl 31 opens, so that the collet chucks 28 and 29 are locked.
  • the carriers 22 and 23 are turned around by means of the servo motor 26 and the tube 24, which is glued together enters the space between the flanging disks 34.
  • the flanging disks are connected to driving means 35, comprising a magnet 36, as shown in FIG.
  • the axle 25 of the carriers 22 and 23 of the conveying device rotates in a clockwise direction.
  • a cutting knife 38 is provided, which is driven by the motor 39.
  • the cutting knife 38 is adapted to penetrate into the passage of conveyance of the tube already flanged, cutting it in two halves, which are normally used as lids for the tubes.
  • a glow wire may be used.
  • the various members of the device may be controlled by an electronically operated control device 40 of known design.
  • the longitudinal slot 5 of the cylinder 4 is associated with a table 41 placed against said slot, onto which table the pieces of foil may be laid on by hand.
  • a deflection roll 42 At the end of the table is a deflection roll 42, by aid of which the pieces of foil are guided into the slot 5 of the cylinder 4, assisted by a deflection plate 43.
  • the foils may be guided into the slot by means of conveyor rollers, not shown in the drawings.
  • FIG. 14 illustrates a feeding device in connection with a foil roll, the foil strips are pulled off the roll 48 by means of the conveyor rolls 47 and are guided to a table 45 arranged horizontally, above which table a printing device may be provided.
  • a cutting knife 44 which is cutting the conveyed foil to the desired length of foil, which are hereafter conveyed via conveyor rolls 47 to the feeding table 41, from which table the foil cuttings 11 are fed into the longitudinal slot 5 of the cylinder 4.
  • What I claim is 1.
  • forming cylinder is provided with a free ends, having the diameter of the with an annular spiral spring, wall of the forming cylinder.
  • Apparatus according to claim 2 characterized in that an adjusting device is provided at the free end of the forming cylinder, adapted to change the diameter of the delivery opening ofthe forming cylinder.
  • Apparatus according to claim 2 characterized in that a nozzle is arranged at the carrier end of the longitudinal slot of the forming cylinder through which nozzle a stream of a solcharacterized in that the stop piece on one of its piston which is equipped which is in contact with the inner vent or of an adhesive is pumped by means of an intermittently driven pump and that said stream of solvent or adhesive is applied onto the foil.
  • pawls are arranged on the working tables, which receive the carriers, which are adapted to open the collet chucks and that said pawls are preferably cutting through a flanged tube, received in said carriers.
  • Apparatus according to claim 2 characterized in that an electrical control device of known design is provided, controlling the sequence of actuation of the piston, the pump, the carriers, the pawls and the flanging disks.
  • Apparatus according to claim 2 characterized in that a working table is provided, leading to the longitudinal slot of the forming cylinder, which is equipped with conveyor rollers and a deflection roll, which facilitate the guiding of the foil into the said slot.
  • Apparatus according to claim 2 characterized in that the working table is preceded by a cutting device'and a printing apparatus for applying an imprint on the foil and that the pieces of foils are cut off from a roll of material.

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  • Mechanical Engineering (AREA)
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US853584A 1967-06-16 1969-07-24 Method and apparatus for making plastic tubes Expired - Lifetime US3654037A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19671704251 DE1704251A1 (de) 1967-06-16 1967-06-16 Verfahren zur Herstellung von ein- oder doppelseitig geboerdelten,aus einer Folie aus plastischem Material gebogenen,rohrfoermigen,vorzugsweise der Verpackung dienenden,ein- oder beiderseitig durch einen Deckel verschliessbaren Huelsen und Vorrichtung zu seiner Durchfuehrung

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BE (1) BE716475A (fr)
FR (1) FR1604927A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5597433A (en) * 1994-05-27 1997-01-28 Panoramic, Inc. Method and apparatus for manufacturing plastic canisters

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3959066A (en) * 1974-09-13 1976-05-25 Polytube, Inc. Apparatus for manufacturing the body portion of a collapsible squeeze tube

Citations (4)

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Publication number Priority date Publication date Assignee Title
US2058182A (en) * 1935-04-11 1936-10-20 Seymour & Peck Company Machine for forming cylindrical containers
US2616463A (en) * 1945-07-14 1952-11-04 Haskelite Mfg Corp Apparatus for fabrication of plywood tubing
US3396567A (en) * 1964-12-04 1968-08-13 Hasenclever A G Maschf Apparatus for the heading of conductive workpieces
US3466845A (en) * 1966-02-18 1969-09-16 Kaiser Aluminium Chem Corp Multistation packaging apparatus and system for forming a multicomponent package

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2058182A (en) * 1935-04-11 1936-10-20 Seymour & Peck Company Machine for forming cylindrical containers
US2616463A (en) * 1945-07-14 1952-11-04 Haskelite Mfg Corp Apparatus for fabrication of plywood tubing
US3396567A (en) * 1964-12-04 1968-08-13 Hasenclever A G Maschf Apparatus for the heading of conductive workpieces
US3466845A (en) * 1966-02-18 1969-09-16 Kaiser Aluminium Chem Corp Multistation packaging apparatus and system for forming a multicomponent package

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5597433A (en) * 1994-05-27 1997-01-28 Panoramic, Inc. Method and apparatus for manufacturing plastic canisters

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BE716475A (fr) 1968-11-04
FR1604927A (fr) 1971-05-15

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