EP1177979A2 - Procédé pour faire glisser des films tubulaires sur objets allongés et dispositif de traitement pour la mise en oeuvre du procédé - Google Patents

Procédé pour faire glisser des films tubulaires sur objets allongés et dispositif de traitement pour la mise en oeuvre du procédé Download PDF

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Publication number
EP1177979A2
EP1177979A2 EP01118258A EP01118258A EP1177979A2 EP 1177979 A2 EP1177979 A2 EP 1177979A2 EP 01118258 A EP01118258 A EP 01118258A EP 01118258 A EP01118258 A EP 01118258A EP 1177979 A2 EP1177979 A2 EP 1177979A2
Authority
EP
European Patent Office
Prior art keywords
sleeve
mandrel
film tube
objects
film
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.)
Granted
Application number
EP01118258A
Other languages
German (de)
English (en)
Other versions
EP1177979B1 (fr
EP1177979A3 (fr
Inventor
Hans-Joachim C/O Logicpak Maschinenbau Service Und Vertriebs Gmbh Lortz
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.)
LORTZ HANS JOACHIM C O LOGICPA
Original Assignee
LORTZ HANS JOACHIM C O LOGICPA
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 LORTZ HANS JOACHIM C O LOGICPA filed Critical LORTZ HANS JOACHIM C O LOGICPA
Publication of EP1177979A2 publication Critical patent/EP1177979A2/fr
Publication of EP1177979A3 publication Critical patent/EP1177979A3/fr
Application granted granted Critical
Publication of EP1177979B1 publication Critical patent/EP1177979B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B19/00—Packaging rod-shaped or tubular articles susceptible to damage by abrasion or pressure, e.g. cigarettes, cigars, macaroni, spaghetti, drinking straws or welding electrodes
    • B65B19/34—Packaging other rod-shaped articles, e.g. sausages, macaroni, spaghetti, drinking straws, welding electrodes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/13—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the preformed tubular webs being supplied in a flattened state

Definitions

  • the invention relates to a method and devices for postponing from tubular films to continuously transported Items.
  • cover sleeves For writing materials, such as pens with cover sleeves, and also for cosmetic packaging, for lipsticks and eyebrow pencils, which are provided with cover sleeves, which are one can have a sudden change in cross-sectional profile be problematic, film tubes that are used for packaging, to lead over the objects.
  • Bottles with attached closures of larger cross-section is often found only after the purchase that such Item was used before purchase.
  • a form of packaging that has been used frequently to date is masking the transition points to misuse to prevent. However, this approach is not visually appealing.
  • a common approach is to use film tubing (Sleeves) that shrink as a result of heating and thus form a tight-fitting package that only opens if it gets damaged.
  • the above-mentioned laid-open specification also means a machine to carry out the process become known characterized in that the machine is a carrying device for feeding two layers of plastic film on top of each other, Guidelines for bringing the two together and promoting them superimposed foil layers, a welding device for connecting the two layers of film by cross welding at the conveying direction and one behind the other Device for opening the between two transverse welds initially has flat-lying film parts.
  • This machine is, as already stated for the process, a machine for Manufacture of bags for objects, but not for furnishings for the safe wrapping of objects to be sold.
  • the present invention has the object based on an elongated object through a film envelope regardless of the cross-sectional course over its length, without any damage to its surface when pushed open of a film tube or damage to the film tube to cause themselves which is caused by misalignment arise between the film tube and the elongated object.
  • This task is accomplished with the procedural features of the independent Process claim solved, in particular by a Method in which preferably two conveyors convey the objects transport exposed by preferably the objects held clamped at both ends by a holding device be, each holding device a sliding means with a Has sleeve on which the film tubes are arranged. During the transport of the objects, the sleeve is placed over the Item led.
  • the film tube holds so that the film tube when returning the Sleeve is pushed from the sleeve to then encircle the object to extend.
  • the sleeve either can be completely guided over the object or which led to the edge of the largest cross section of the object and forms a smooth surface with it, the Film without jamming over the rest of the item be performed.
  • the film tubes are opened an intermediate storage and brought to a predetermined length, the interim storage facility being synchronized with the elongated one Object moved on, then after the postponement Foil sleeves shrunk onto the elongated object becomes.
  • the interim storage facility is usually part of the holding and means of transport that carry the items, wherein the sleeve is also part of the intermediate storage.
  • the too offers sealing object with its larger cross section according to the invention now itself a clean management of shrink-wrap film until it reaches its predetermined Position when the sleeve is up to the shoulder of the largest cross section of the object. However, should Sleeve are completely guided over the object, so serves the sleeve completely as a guide.
  • the film tube pieces usually come from an endless Film tube.
  • an endless film tube moved by means of transport over a mandrel to then slide it onto the sleeve mentioned above, which is in extension the mandrel is arranged.
  • These steps are ongoing executed.
  • After the film tube is complete has been pushed onto the sleeve using a release agent a segment of the film tube between the mandrel and the Separated sleeve. As a rule, this is a fast rotating, round knife.
  • Another component of the present invention is a Device having means and a controller that the implement the inventive method.
  • this is a processing device for pushing open film tubes onto elongated objects, which preferably have varying cross sections, the objects being transported exposed, preferably by two conveyors, by holding the objects on their end sides.
  • the object it is also conceivable for the object to be held on one side by a special tool, the tool locking the object at one end in such a way that it can be covered by a film cover when exposed.
  • a sleeve which is arranged on the film tube, can be guided over the object with sliding means.
  • further sliding means are provided which hold the film tube when the sleeve is being returned so that the film tube is pushed off the sleeve.
  • Both the control of the sleeve and the control of the sliding means that the film tube moves from the sleeve are realized by guides that are arranged all around.
  • the object is arranged between two conveyors, which hold the object by the holding devices by clamping at their ends. Tools are also provided for the clamping holder, which represent a negative image of the object at its ends, whereby these tools can be exchanged so that the machine can be used universally.
  • the sleeve on which the film tube is arranged is mounted on a holding device.
  • each holding device which is arranged on a conveyor, has a sleeve on which a film tube can be arranged.
  • the sleeve is guided over the object by a sliding mechanism.
  • This sliding mechanism preferably also runs in an endlessly rotating path and is controlled by corresponding guides which engage in grooves. Another sliding mechanism pushes the film sleeve off the sleeve at different times.
  • the sleeve is not completely led over the object, but only up to largest cross section of the object.
  • the sleeve bumps directly to the shoulder of the thickening of the object.
  • the wall thickness of the sleeve corresponds to the one that occurs Change in cross-section of the horizontally lying, transversely transported, elongated object. Because of the flush transition the film tube can then completely over the object be performed.
  • the control of the holding devices, the slide devices for the sleeve and for pushing the film tube down takes place through groove-shaped guideways in the pins to grab.
  • the conveyors and the guides are endless.
  • controlling the sleeve is designed so that the sleeve at least temporarily immediately located in the extension of the opening mandrel.
  • Release agent is arranged so that it is the endless film tube severed between opening mandrel and sleeve.
  • the transport device for transporting a film tube, preferably onto a Auxiliary mandrel as described above.
  • the transport device has several drive rollers, with external ones Transport rollers are provided which are driven and internal transport rollers integrated in the mandrel are. The latter are arranged so that the lowest possible Cross section of the mandrel can be achieved to be as small as possible To be able to process film tubes.
  • the external drive rollers act on the outside Foil tube, which is arranged on the mandrel that a sufficient There is friction to transport the film tube.
  • the inner counter-rollers (41) are in notches or Recesses of the mandrel are arranged, being so aligned are that they are operatively connected to the drive roller. As a result, the film tube is rubbing between the two Roles arranged.
  • the friction surfaces of the drive rollers or counter rollers a V-shaped cross section, wherein the V-shape preferably the friction surface of the associated counter rollers or drive rollers is adapted. This ensures that the round tube shape is ideal for transport is taken into account.
  • the described embodiment ensures that during the continuous transportation of the elongated objects synchronous to the movement of the single elongated object one piece of tubular film was cut off and one was synchronized intermediate storage moved with the elongated object is fed.
  • Such an inventive design become clear bottlenecks with a continuous sealing such elongated objects, which are lying transported, avoided. By doing this is also the transition to a synchronous run during the transition controllable from the bearing to the elongated body.
  • the device according to the invention comprises side by side at synchronous speed with their leading Trumen horizontally rotating conveyor, the between the middle conveyor support units arranged on both outer conveyors for overdrawn, across the direction of progress the conveyor transported various elongated objects Cross-section has, with the two outer conveyors to their Wear conveying devices that run transversely, with at least one of the two outer conveyors being guided for a transverse movement of the transverse holding devices has, the holding devices simultaneously as auxiliary mandrels with these surrounding sleeves for the opened sections of the film tubes to be pushed open.
  • the Foil tube pieces to be pushed open are between a Drive rollers horizontally mounted opening mandrel synchronously with the movement of the object to be covered after opening Using the drive rollers on the sleeves in the appropriate length pushed on and separated from the film tube. Furthermore are Auxiliary mandrel and the associated sleeve with one each separate slide device connected, the Slider devices depending on themselves along the conveying direction extending, separately arranged, other tours across the direction of the sponsors' progress and move back and forth independently.
  • the elongated object of variable cross-section becomes during of sliding the piece of film tube free from the middle one Conveyor, only carried by the holding devices and where then the elongated object, including the shrinkable hose piece a shrink-on channel is fed.
  • an opening mandrel mounted horizontally between drive rollers in connection with one that can be pushed on an auxiliary mandrel Sleeve and the during the postponement after orientation of the elongated object to the auxiliary mandrel secure guidance up to the cross-sectional jump on the elongated object with a backward control of the sleeve according to the invention while continuing to advance the piece of film tube the sleeve to the predetermined position on the elongated object will be a safe and most importantly not the object damaging shrinkage possible.
  • Such a sealed one Item provides the guarantee of being damaged before purchase to reliably recognize elongated objects.
  • tubular films can be minimal Thickness are used, which guarantee that when shrinking, no irregularities along the elongated Object can occur that damage the can pretend wrapped elongated object.
  • items packed in shrink film are made of easily breakable materials secured against breakage.
  • each transverse holding device carries a guide extension, the guide extension in one, between the leading and the trailing Run of a rotating conveyor, arranged guideway runs. This ensures that the one to be overdrawn elongated object that transports continuously lying is, by the driven holding devices even during the Postponement process performed safely without additional conveyors becomes.
  • each transverse holding device an auxiliary mandrel slide guide with a guide pin and a sleeve slide guide with another guide pin.
  • the horizontal extending mandrel at a generatrix that supports a horizontally on a pair of drive rollers another pair of drive rollers the opening mandrel at around 180 Further opposite surface line, offset to the first drive rollers, leads both pairs parallel to each other are aligned that the distance between the one Pair of forming drive rollers per pair is different that everyone Drive roller assigned a pair of counter rollers in the opening mandrel is and is in operative connection with this, and that the Axes of the counter rollers transverse to the longitudinal axis of the opening mandrel run.
  • the invention thus shows a way for the first time, so far not to seal sealable elongated objects against misuse.
  • a processing device shown in Figure 1 in plan view 1 consists of several (three) in the processing area 2 juxtaposed horizontal conveyors, with a feed conveyor 3 with its leading strand according to Figure 1 of runs left to right.
  • the feed conveyor 3 In front of the processing area 2, the feed conveyor 3 elongated objects 4 transported continuously in Mounts, not shown, parallel to each other and in are aligned at the same height above the feed conveyor 3.
  • the Feed conveyor 3 is in accordance with the embodiment of Figure 1 as Double chain conveyor designed to keep the elongated objects 4 can be transported safely.
  • holding conveyors 5 and 6 are provided, which also serve as double chain conveyors are trained.
  • the holding conveyor 5 carries movable Holding devices 7 only stationary during the holding conveyor 6
  • Holding devices 8 carries, on which the elongated Objects that are continuously transverse at a fixed distance are transported to the conveying direction of the feed conveyor 3, support when the movable holding devices 7 the other Take up the end face of the elongated object 4.
  • the holding conveyors 5 and 6 run in the processing area 2 parallel and at the same height to the feed conveyor 3 with synchronous Speed, so that safe transportation of the elongated objects 4 is secured even when the feed conveyor 3 as an endless rotating chain conveyor in the processing area down over a deflection roller, not shown is transferred into its returning strand, so that the elongated Objects 4, which with tubular film sections 9 to be covered, only by those on their end faces attacking holding devices 7 and 8 are held.
  • FIG. 1 1 can also be a processing device within the scope of the invention occur, which also according to the invention the holding conveyor 6 has movable holding devices 7, the like the holding devices according to the invention, as shown in Figure 2 are explained, are equipped.
  • Such a processing device is particularly for Elongated items such as pens are suitable, they are all Can deal with types of pencils, i.e. pencils or colored pencils with a polygonal cross section or eyebrow pencils and also Measuring devices, which as elongated objects with an elongated Bracket are provided in the middle and at the end two different workpieces, such as a screwdriver blade on one side and rectangular spatula on the other Protrude from the elongated bracket, the Width smaller than the cross section of the elongated holder is.
  • pencils i.e. pencils or colored pencils with a polygonal cross section or eyebrow pencils
  • Measuring devices which as elongated objects with an elongated Bracket are provided in the middle and at the end two different workpieces, such as a screwdriver blade on one side and rectangular spatula on the other Protrude from the elongated bracket, the Width smaller than the cross section of the elongated holder is
  • the movable holding devices for example the screwdriver blade and the spatula blade recorded and then, as for the figures 2 and 4 explained in more detail, with one piece of tubular film per Covered up to the area of the elongated bracket to achieve a secure seal.
  • the elongated holder has one in the area of its longitudinal center Weakening in its cross-section or two shoulders, it is according to the invention despite the use of two film tube sections, which are pushed onto the elongated holder from the left and right be ensured that after shrinking a Peel off the shrunk-on film without destroying it the slides is not possible.
  • the section AA shown in Figure 2 through the processing area 2 shows in "a” the process of pushing on a shrinkable one Tubular film on a between movable holding device 7 and fixed holding device 8 elongated object 4, and "b" shows an opening of one Tubular film 16 by means of an opening mandrel 17, one which is in storage first pair of drive rollers 18, 19 and a second pair of drive rollers 120, 121.
  • FIG. 2a is between a leading strand 13 and a returning strand 14 of the holding conveyor 5 a guide link 15 fixedly arranged, with a groove 20 as a guideway runs along the surface of the fixed guide link.
  • the movable holding device 7 has a pin 21, which in the exemplary embodiment is rotatable about an axis 22 Ball bearing 23 is formed, with which the movable holding device 7 according to the conveying movement of the holding conveyor 5 is moved back and forth.
  • the holding conveyor 5 acts it is a double chain conveyor, the roller or Link chain conveyor can be formed.
  • the movable holding device 7 carries an auxiliary mandrel 24, which according to the guidance of the pin 21 in the groove 20 at Progress of the holding conveyor 5 in operative connection with one End face of the elongated object 4 comes.
  • a cylindrical body with a circumferential shoulder 26 shown as an elongated object 4.
  • the movable holding device 7 shown in FIG. 2a is also inserted into the holding conveyor 6. This creates then a processing area 2, in which elongated objects with several cross-sectional changes along its length according to the invention can be provided with slide-on tubular films can.
  • the further guide groove 30 in the additional fixed guide link 31 is on the configuration of the elongated object 4 adapted so that the sleeve 27 without space the shoulder 26 connects, so that now with the help of the others Slider device 32, which is in a different guide link is guided in yet another groove 34, the Tubular film section 9 without transition to a predetermined one Location of the thicker part of the elongated object 4, in particular to the end or beyond it, is postponed if the end faces are sealed should.
  • the movable holding device 7 is located in the area of the returning run of the holding conveyor 5 in Zero position and is there without longitudinal movements transverse to the conveying direction synchronously and continuously with the help of the stop conveyor 5 redirected.
  • the slide devices 28 are likewise and the further slide device 32 in the zero position, so that the auxiliary mandrel 24 with the surrounding sleeve 27 for the Recording a tubular film section 9 is ready.
  • a flat tubular film 16 is fed to an opening mandrel 17.
  • the horizontal opening mandrel 17 is in one first drive roller pair 18, 19 and in a second drive roller pair 120, 121 stored.
  • the drive roller pairs 18, 19 and 120, 121 themselves are mounted in a bearing 36, the bearing 36 itself in the conveying direction of the holding conveyor 5 or 6 can be moved back and forth so that it is always correct Alignment with the longitudinal course of the peripheral auxiliary mandrels 24 is granted.
  • the bearing 36 moves synchronously with the holding conveyors 5, 6, while the open tubular film on the sleeve 27 accordingly a requirement is postponed.
  • After reaching one predetermined section length is measured using a circular knife 37 the tubular film between the end of the opening mandrel 17 and the beginning of the auxiliary mandrel 24. Then the continuously following additional auxiliary mandrel device the corresponding tubular film sections.
  • According to the invention can also open multiple mandrels in the feed area one after the other be arranged and by increasing the postponement a larger number of sleeved Load auxiliary mandrels, which leads to a considerable increase in Ejection of sealed elongated objects 4 leads.
  • FIG. 3 shows a movable holding device on an enlarged scale 7 with pin 21, one on the movable holding device 7 arranged auxiliary mandrel 24, one in the movable Holding device 7 guided slide device 28 with a Guide pin 29, the slider 28 of the sleeve 27 is assigned, and a further slide device 32 with a still further guide pin 38, which is also in the movable holding device 7 is guided and on which the tubular film section 9 supports.
  • the latter holding device 7 serves the tubular film section 9 over the Guide item after the sleeve is withdrawn again has been.
  • the separately arranged guide links 31 and 33 for the slide device 28 and the further slide device 32 have a further guide groove 30 and another Groove 34, the leading slopes parallel to each other run. This ensures that until the Shoulder 26 without moving the tubular film section 9 Sleeve 27 through its slide device 28 and the tubular film 9 without movement by the further slide device 32 can be transported to shoulder 26.
  • the further guide groove 30 has a dome-shaped at its front turning point Design. This ensures that after reaching the shoulder through the front edge of the sleeve the sleeve is reached on the shoulder, but an increase in pressure no longer takes place while now in the other Guide slot 33 arranged guide groove over the other Slide device 32 the tubular film section on the thicker Delays part of the elongated object.
  • the history the further guide groove 30 is in its sloping part executed steeply so that the slide device as quickly as possible 28 again on the front part of the movable holding device 7 is present, so that after reaching the specified position of the Tubular film section 9 with its front edge on the thicker Part of the elongated object is a transfer of the object performed continuously on the horizontal conveyor 10 can be. Then in the shrink tunnel 11 with continuous progression of the elongated objects transversely to the conveying direction of the horizontal conveyor 10 of the respective Tubular film section 9 on the respective elongated Body 4 shrunk.
  • FIG. 5 the storage of the opening mandrel 17 between a first pair of drive rollers 18, 19, which the opening mandrel 17 supported horizontally, and a second pair of drive rollers 120, 121, which is arranged above the opening mandrel 17 and ensures that the opening mandrel is guided horizontally, shown.
  • a flat tubular film from a flat one Mandrel tip 40 (see Figure 2) opened to then in the open state with the help of the opening mandrel the interaction of a pair of counter rollers 41 with one Drive roller 18 to guide without stretching or pressing the tubular film takes place.
  • the drive rollers 18, 19, 120, 121 each have a V-shaped Guide contour and thus encompass the opening mandrel 17, so that the opening mandrel is guided securely 17 is guaranteed in the transverse direction.
  • Figure 5 shows a view of the opening mandrel 17, in which the Bores for the counter roller pairs 41 with their roller axes 42 the opening mandrel horizontally across the length of the longitudinal axis of the Pierce the opening pin.
  • the opening mandrel 17 corresponding to the V-shape, not shown the opening rollers 18, 19, 122, 121 milled so that it is ensured that the counter-roller pairs 41 on none Exceed the largest cross section of the opening mandrel. This ensures that especially with small Tubular film diameters damage from the opening rollers or the respective counter roller pairs excluded is. So when using thin elongated objects the opening mandrel diameter alone and no longer the mandrel outstanding counter roller pairs prevail.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Basic Packing Technique (AREA)
  • Labeling Devices (AREA)
EP01118258A 2000-08-03 2001-07-30 Procédé pour faire glisser des films tubulaires sur objets allongés et dispositif de traitement pour la mise en oeuvre du procédé Expired - Lifetime EP1177979B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10038572A DE10038572C2 (de) 2000-08-03 2000-08-03 Verfahren und Vorrichtung zum Aufschieben von Schlauchfolienabschnitten über längliche Gegenstände
DE10038572 2000-08-03

Publications (3)

Publication Number Publication Date
EP1177979A2 true EP1177979A2 (fr) 2002-02-06
EP1177979A3 EP1177979A3 (fr) 2002-11-06
EP1177979B1 EP1177979B1 (fr) 2007-09-12

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP01118258A Expired - Lifetime EP1177979B1 (fr) 2000-08-03 2001-07-30 Procédé pour faire glisser des films tubulaires sur objets allongés et dispositif de traitement pour la mise en oeuvre du procédé

Country Status (3)

Country Link
EP (1) EP1177979B1 (fr)
AT (1) ATE372929T1 (fr)
DE (2) DE10038572C2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6955033B2 (en) 2002-07-24 2005-10-18 Hans-Joachim Lortz Method of pushing tubular films onto elongate objects and processing apparatus for implementing the method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2321457A1 (de) 1972-06-29 1974-01-17 Bate F D C Verfahren und maschine zum herstellen von laenglichen huellen aus kunststoffolie, z.b. fuer tapetenrollen

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6752577U (de) * 1968-08-09 1970-01-22 Claus Wolfgang Hartmann Vorrichtung zum verpacken eines verpackungskoerpers.
DE3138685A1 (de) * 1981-09-29 1983-04-14 Günter 6080 Groß-Gerau Kollross Verfahren und vorrichtung zum verpacken langgestreckter zylindrischer gegenstaende, insbesondere wursthuellenraupen in schlauchfoermiges elastisch aufweitbares verpackungsmaterial
CA1224754A (fr) * 1983-07-05 1987-07-28 Robert J. Burmeister Pose d'etiquettes sur recipients en verre
FR2730210B1 (fr) * 1995-02-02 1997-06-06 Novatech Sarl Machine a poser des manchons de filets mailles sur des objets
FR2738797B1 (fr) * 1995-09-15 1997-12-12 Sabatier Eric Machine a chemiser des objets en forme au moyen de troncons de gaine thermo-retractable
DE19737689A1 (de) * 1997-08-29 1999-03-04 Hans Joachim Lortz Verfahren zum Abtrennen eines geöffneten Folienschlauchstücks und Vorrichtung zur Durchführung des Verfahrens
DE19908395C2 (de) * 1999-02-26 2001-01-04 Hans Joachim Lortz Verfahren zum Überziehen flacher Körper geringer Dicke mit aufschrumpfbaren Folienschlauchabschnitten und Verarbeitungsvorrichtung zur Durchführung des Verfahrens

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2321457A1 (de) 1972-06-29 1974-01-17 Bate F D C Verfahren und maschine zum herstellen von laenglichen huellen aus kunststoffolie, z.b. fuer tapetenrollen

Also Published As

Publication number Publication date
DE10038572C2 (de) 2003-01-30
EP1177979B1 (fr) 2007-09-12
DE10038572A1 (de) 2002-02-21
DE50112990D1 (de) 2007-10-25
ATE372929T1 (de) 2007-09-15
EP1177979A3 (fr) 2002-11-06

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