DE861153C - Continuously working pulling device for plastic film tubes - Google Patents

Continuously working pulling device for plastic film tubes

Info

Publication number
DE861153C
DE861153C DES6340D DES0006340D DE861153C DE 861153 C DE861153 C DE 861153C DE S6340 D DES6340 D DE S6340D DE S0006340 D DES0006340 D DE S0006340D DE 861153 C DE861153 C DE 861153C
Authority
DE
Germany
Prior art keywords
gripper
pulling device
pulling
plastic film
controlled
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
DES6340D
Other languages
German (de)
Inventor
Josef Koehler
Alfred Zink
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Priority to DES6340D priority Critical patent/DE861153C/en
Application granted granted Critical
Publication of DE861153C publication Critical patent/DE861153C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/56—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which travels with the work otherwise than in the direction of the cut, i.e. flying cutter
    • B26D1/60—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which travels with the work otherwise than in the direction of the cut, i.e. flying cutter and is mounted on a movable carriage
    • 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
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/0027—Cutting off
    • 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
    • B29C48/03—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
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)

Description

Kontinuierlich arbeitende Ziehvorrichtung für Kunststoff-Filmscliläuche Die Erfindung bezieht sich auf eine kontinuierlich arbeitende Ziehvorrichtung, insbesondere für Kunststoff-Filmschläuche. Solche Schläuche werden nach einem älteren Vorschlag dadurch hergestellt, daß man Filmstreifen aus Kunststoffen, wie Triacetat, Polyvinylchlorid usw., durch Über- oder Unterlappen der Ränder in einer beheizten Düse allmählich in die Schlauchform überführt. Dabei ist es möglich, den Streifen so oft in sich zu rollen, daß der Schlauch an allen Stellen drei oder mehr Filmschichten zeigt. Die Schläuche werden von Hand oder durch Seilzug gezogen, da sie sich nicht ohne Knick aufwickeln lassen, und werden jeweils nach dem Ziehen auf die gewünschte Länge zugeschnitten. Diese Art des Ziehvorgangs ist umständlich und zeitraubend. Gegenstand der Erfindung ist eine Ziehvorrichtung, die diesen Mangel vermeidet. Erfindungsgemäß werden an einem endlosen Zugorgan, z.B. Kette, angeordnete Greifer für den zu ziehenden Körper durch längs des Zugorgans feststehend angeordnete Kurventeile od. dgl. derart gesteuert, daß der Greifer wenigstens während eines Teils des in der Ziehrichtung liegenden Hingangs denKörper faßt und mitnimmt, während des übrigen Teils des Hingangs und während des Rücklaufs aber ohne Greifschluß ist.Continuously working pulling device for plastic film clips the The invention relates to a continuously operating pulling device, in particular for plastic film tubes. Such hoses are made according to an older proposal produced by film strips made of plastics such as triacetate, polyvinyl chloride etc., by lapping the edges over or under in a heated nozzle gradually converted into the tubular shape. It is possible to use the strip as often in itself roll so that the tube shows three or more layers of film in all places. The hoses are pulled by hand or by means of a cable, as they can not move without Let the kink roll up, and each after pulling it to the desired length tailored. This type of pulling process is cumbersome and time consuming. object of the invention is a pulling device that avoids this deficiency. According to the invention grippers are arranged on an endless pulling element, e.g. a chain, for the pulling device Body by cam parts arranged in a stationary manner along the tension member or the like controlled that the gripper during at least part of the in the pulling direction the body and takes it with it during the rest of the slope and is without a grip fit during the return movement.

Um die gezogenen Körper jeweils auf die gewünscht Länge zuzuschneiden, können an dem Zugorgan auch Abschneidevorrichtungen angeordnet werden, die ebenfalls durch feststehende Kurven- teiIe, Anschläge od. dgl. gesteuert werden. Am besten verwendet man für die Greifer und Abschneidevorrichtungen gemeinsame Steuerkurventeile.In order to cut the drawn bodies to the required length, Cutting devices can also be arranged on the pulling element, which also through fixed curve parts, attacks or the like. Controlled. It is best to use common control cam parts for the grippers and cutting devices.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt. An embodiment of the invention is shown in the drawing.

Von der Vorratsrolle I wird der Filmstreifen 2 über die Führungen3,4 durch eine beheizte Düse 50 -hindurchgezogen, die den Filmstreifen unter mehrfacher Überlappung in einen Schlauch 5 überführt. tYber die Kettenräder6, 7 laufen zwei in Fig. 1 hintereinanderliegende endlose Ketten 8, in die in gleichmäßigen Abständen Greiforgane 9 und Abschneidevorrichtungen IO eingesetzt sind. Das Rad 6 oder 7 ist mit einer Antriebsvorrichtung verbunden, die der Einfachheit halber weggelassen ist. The film strip 2 is taken from the supply roll I via the guides 3, 4 pulled through a heated nozzle 50, which the film strip under multiple Overlap transferred into a tube 5. There are two running over the sprockets 6, 7 in Fig. 1 one behind the other endless chains 8, in which at regular intervals Gripping organs 9 and cutting devices IO are used. The wheel is 6 or 7 connected to a drive device, which is omitted for the sake of simplicity is.

Zu beiden Seiten der unteren Kettenteile sind an den Böcken II der Rollen,7 befestigte Kurventeile I2 angebracht, die in Fig. 2 unten abschnittsweise in einer anderen Ansicht dargestellt sind.On both sides of the lower chain parts are on the blocks II of the Rollers, 7 attached curve parts I2 attached, which in Fig. 2 below in sections are shown in a different view.

Unterhalb der Kurventeile I2 ist ein Behälter t3 zur Aufnahme der abgeschnittenen Schlauchstücke angeordnet.Below the curve parts I2 is a container t3 for receiving the cut pieces of tubing arranged.

In Fig. 3 ist ein ein Kettenglied bildender Greifer, in Fig. 4 eine Abschneidevorrichtung in verkleinertem Maßstab dargestellt. Der Greifer besteht aus zwei längs verschiebbar in einem Bügel 14 gelagerten Greiferbacken 15, die in Hülsen I6 geführt sind. Auf den Hülsen sitzen auch die Kettenglieder I7. Die Backen I sind an längs verschiebbar in den Hülsen 16 gelagerten Rohrstücken 18 angebracht, die- zwecks Hubbegrenzung und zum Schutz gegen Drehung mit einem Schlitz 19 versehen sind, in den die Befestigungsschraube20 greift. In das Rohrstück 18 ist ein mit einer Rolle 21 versehener Bolzen 22 eingeschoben, der mit einem gewissen Leergang durch einen Stift 23 mit dem Rohrstück I8 verbunden ist. Eine Feder 24 sucht die Backen auseinanderzuziehen, 25 ist eine-Pufferfeder für die Backen. Die Abschneidevorrichtung ist ähnlich ausgeführt, nur sind statt der Backen 15 zwei gegeneinander verschiebbare Schneider 26 vorgesehen. In Fig. 3 is a chain link forming gripper, in Fig. 4 is a Cutting device shown on a reduced scale. The gripper persists from two longitudinally displaceable in a bracket 14 mounted gripper jaws 15, which in Sleeves I6 are guided. The chain links I7 also sit on the sleeves. The cheeks I are attached to pipe sections 18 that are longitudinally displaceable in the sleeves 16, provided with a slot 19 for the purpose of stroke limitation and for protection against rotation are, in which the fastening screw 20 engages. In the pipe section 18 is a with a roller 21 provided bolt 22 is inserted, which with a certain backlash is connected by a pin 23 to the pipe section I8. A spring 24 seeks the To pull the jaws apart, 25 is a cushion spring for the jaws. The cutter is carried out similar, only instead of the jaws 15 are two mutually displaceable Schneider 26 provided.

Die Vorrichtung arbeitet folgendermaßen: Sobald der Greifer 9 mit seinen Backen zu beiden Seiten des Schlauchstücks 5 gelangt ist, werden durch die Kurventeile Ii2 mittels der Rollen 21 und der übrigen dazwischenliegenden Teile unter Zusammendrückung der Feder 24 die Backen gegen den Schlauch 5 gepreßt und halten ihn fest. Der Schlauch wird nun in der Pfeilrichtung von dem Greifer g aus der Düse 5lo gezogen, bis der Greifer 9 am Ende der Führung I2, Fig. 2, rechts, angelangt ist. Hier werden die Backen 15 wieder gelüftet. The device works as follows: As soon as the gripper 9 with his jaws on both sides of the hose section 5 are through the Curve parts Ii2 by means of the rollers 21 and the other parts in between while compressing the spring 24, the jaws are pressed against the hose 5 and hold him tight. The hose is now in the direction of the arrow from the gripper g the nozzle 5lo pulled until the gripper 9 at the end of the guide I2, Fig. 2, right, has arrived. Here the jaws 15 are released again.

Inzwischen hat ein neuer Greifer am Anfang der Führung den Schlauch 5 wieder gefaßt, und die in der gleichen Weise wie der Greifer durch die Führungen 12 gesteuerte Abschneidevorrichtung hat am Anfang der Führung 12 das zwischen beiden Greifern liegende Schlauchstück abgeschnitten, das nun in den Behälter 13 fällt. Der Schlauch wird also ohne Pause aus der Düse gezogen und jeweils auf abgepaßte Länge selbsttätig zugeschnitten.In the meantime, a new gripper has the hose at the beginning of the guide 5 recaptured, and in the same way as the gripper by the guides 12 controlled cutting device has at the beginning of the guide 12 that between the two Grippers cut off the hose section, which now falls into the container 13. The hose is therefore pulled out of the nozzle without a break and is then adjusted to fit Automatically cut to length.

Claims (3)

Es ist nicht erforderlich, daß die Abschneidevorrichtung 10 durch die gleichen Kurventeile 12 gesteuert wird wie der Greifer 9, ,son,dern, da das Abschneiden nur kurze Zeit in Anspruch nimmt, könnte der Abschneider bei entsprechend anderer Bauform auch durch einen Anschlag betätigt werden. Auch braucht der Abschneider nicht mit dem Greifer zu wandern, sondern kann auch ortsfest angeordnet werden. It is not necessary that the cutter 10 by the same curve parts 12 is controlled as the gripper 9,, so, because that If cutting only takes a short time, the cutter could be used accordingly other design can also be actuated by a stop. Also needs the cutter not to wander with the gripper, but can also be arranged in a stationary manner. PATENTANSPROCHE: 1. Kontinuierlich arbeitende Ziehvorrichtung für Kunststoff-Filmschläuche, dadurch gekennzeichnet, daß an einem endlosen Zugorgan (Ketten 8) angeordnete Greifer (g) für den zu ziehenden Körper (5) durch längs des Zugorgans (8) verlaufende feststehende Kurventeile (12) derart gesteuert sind, daß jeder Greifer (g) wenigstens während eines Teils des in der Ziehrichtung liegenden Hingangs den Körper (5) faßt und mitnimmt, während des übrigen Teils seines Umlaufs aber ohne Greifsehlußbleibt. PATENT CLAIMS: 1. Continuously operating pulling device for Plastic film hoses, characterized in that on an endless pulling element (Chains 8) arranged gripper (g) for the body to be pulled (5) through along the Tension member (8) extending fixed curve parts (12) are controlled in such a way that each gripper (g) during at least part of the length in the pulling direction Hingangs grabs the body (5) and takes it with it, during the remaining part of its circulation but remains without a fallacy. 2. Ziehvorrichtung nach Anspruch I, dadurch gekennzeichnet, daß an dem Zugorgan (8) durch feststehende Kurventeile (12) Anschläge od. dgl. gesteuerte Abschneidevorrichtungen (ro) für den gezogenen Körper (5) angeordnet sind. 2. Pulling device according to claim I, characterized in that on the pulling element (8) by fixed cam parts (12) stops or the like. Controlled Cutting devices (ro) for the drawn body (5) are arranged. 3. Ziehvorrichtung nach Anspruch I und 2, dadurch gekennzeichnet, daß die Greifer (9) und die Abschneidevorrichtungen (IO) gemein-. samt S+teuerkurventeile (I2) haben 3. Pulling device according to claim I and 2, characterized in that that the gripper (9) and the cutting devices (IO) in common. including S + tax curve parts (I2) have
DES6340D 1942-09-24 1942-09-24 Continuously working pulling device for plastic film tubes Expired DE861153C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES6340D DE861153C (en) 1942-09-24 1942-09-24 Continuously working pulling device for plastic film tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES6340D DE861153C (en) 1942-09-24 1942-09-24 Continuously working pulling device for plastic film tubes

Publications (1)

Publication Number Publication Date
DE861153C true DE861153C (en) 1952-12-29

Family

ID=7471935

Family Applications (1)

Application Number Title Priority Date Filing Date
DES6340D Expired DE861153C (en) 1942-09-24 1942-09-24 Continuously working pulling device for plastic film tubes

Country Status (1)

Country Link
DE (1) DE861153C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE29838E (en) * 1974-05-21 1978-11-21 Hasbro Development Corp. Apparatus for cutting a continuous element of indeterminate length into predetermined lengths

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE29838E (en) * 1974-05-21 1978-11-21 Hasbro Development Corp. Apparatus for cutting a continuous element of indeterminate length into predetermined lengths

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