DE1812629A1 - Method and device for producing the cross-connection seams in bags formed from a film tube - Google Patents

Method and device for producing the cross-connection seams in bags formed from a film tube

Info

Publication number
DE1812629A1
DE1812629A1 DE19681812629 DE1812629A DE1812629A1 DE 1812629 A1 DE1812629 A1 DE 1812629A1 DE 19681812629 DE19681812629 DE 19681812629 DE 1812629 A DE1812629 A DE 1812629A DE 1812629 A1 DE1812629 A1 DE 1812629A1
Authority
DE
Germany
Prior art keywords
welding
counter
stamp
weld seam
seam
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.)
Pending
Application number
DE19681812629
Other languages
German (de)
Inventor
Gerhard Naegele
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.)
Hoefliger und Karg KG
Original Assignee
Hoefliger und Karg KG
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 Hoefliger und Karg KG filed Critical Hoefliger und Karg KG
Priority to DE19681812629 priority Critical patent/DE1812629A1/en
Priority to CH1771869A priority patent/CH497267A/en
Priority to FR6941275A priority patent/FR2025177A1/en
Publication of DE1812629A1 publication Critical patent/DE1812629A1/en
Pending legal-status Critical Current

Links

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
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/32—Cooling, or cooling and pressing, package closures after heat-sealing
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/24—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool
    • B29C65/30—Electrical means
    • B29C65/305—Electrical means involving the use of cartridge heaters
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/745—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using a single unit having both a severing tool and a welding tool
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/03—After-treatments in the joint area
    • B29C66/032—Mechanical after-treatments
    • B29C66/0324—Reforming or reshaping the joint, e.g. folding over
    • B29C66/03241—Flattening
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/03—After-treatments in the joint area
    • B29C66/034—Thermal after-treatments
    • B29C66/0342—Cooling, e.g. transporting through welding and cooling zone
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/348—Avoiding melting or weakening of the zone directly next to the joint area, e.g. by cooling
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/431—Joining the articles to themselves
    • B29C66/4312—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/818—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
    • B29C66/8181—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects
    • B29C66/81815—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects of the clamps
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/818—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
    • B29C66/8182—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the thermal insulating constructional aspects
    • B29C66/81821—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the thermal insulating constructional aspects of the welding jaws
    • 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
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7128—Bags, sacks, sachets

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Making Paper Articles (AREA)
  • Package Closures (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)

Description

"""if "" "if

HÖFIIGER + KARGHÖFIIGER + KARG

Waiblingen bei Stuttgart Heerstraße, Postfach 118Waiblingen near Stuttgart Heerstraße, P.O. Box 118

PB-Kr. '156 Waiblingen, den 27.11.1968PB-Kr. 156 Waiblingen, November 27, 1968

Pf /Vo.Pf / Vo.

Verfahren und Vorrichtung zur Erzeugung der Querverschlußnähte bei aus einem Folienschlauch gebildeten BeutelnMethod and Vorrichtun g z for generating de r Qu erverschlußn ähte at from e i nem Fo lien hose Gebild eten bags

Die Erfindung bezieht sich auf ein Verfahren zur Erzeugung der Querverschlußnähte bei aus einem Folienschlauch aus schweißbarem Material, beispielsweise Polyäthylen, gebildeten Beuteln und weiterhin bezieht sich die Erfindung auf eine Vorrichtung zur Durchführung dieses Verfahrens.The invention relates to a method for producing the transverse sealing seams from a film tube weldable material, e.g. polyethylene, formed bags and further the invention relates to an apparatus for performing this method.

Bei den bekannten Vorrichtungen zum Herstellen, Füllen und Verschließen von Beuteln oder dgl. wird das Folieninaterial, beispielsweise Polyäthylen,über Füllrohre bzw. Formschultern von der Rolle abgezogen. Die Schweißung der längsnaht der zu einem Schlauch geformten Folienbahn wird dabei entweder kontinuierlich oder im Takt des Arbeitsgangs durchgeführt je nach Art des Schlauchvorzugs, Der Vorzug des Schlauches kann dabei durch Vorzugsorgane erfolgen, die als Schweißwerkzeuge ausgebildet sind und während des Vorzugs des Schlaucha um eine Beutelgröße gleichzeitig die Quernaht erzeugen. Eine andere Möglichkeit des Schlauchvorzugs ist durch von den Schweißwerkzeugen unabhängige Vorzugsorgane wie Saugbänder oder dgl, gegeben. In the known devices for producing, filling and closing bags or the like, the film material, for example polyethylene, is drawn off the roll via filling tubes or forming shoulders. The welding of the longitudinal seam of the film web formed into a tube is carried out either continuously or at the rate of the operation, depending on the type of tube preference.The preference of the tube can be achieved by means of preferential elements, which are designed as welding tools and while the tube is being drawn by one bag size create the transverse seam at the same time. Another possibility of hose preference is given by preference organs that are independent of the welding tools, such as suction belts or the like.

~ 2 - 009844/0852 ~ 2 - 009844/0852

Es hat sich nun gezeigt, daß bei Erzeugung der Schweißnähte nur durch Anwendung von Druck und Wärme die geforderte Leistung nicht erreichbar ist, da die Schweißnaht im warmen Zustand keine ausreichende Festigkeit aufweist, um dem Gewicht des eingefüllten Guts standzuhalten. Es wurde festgestellt, daß sich wesentlich bessere Ergebnisse erzielen lassen, wenn die Schweißnaht unmittelbar nach ihrer Erzeugung gekühlt wird. Bei einer entsprechenden Vorrichtung ist W die Anordnung so getroffen, daß der Schweißstempel gleichzeitig als Kühlorgan ausgebildet ist. Mit dieser Vorrichtung lassen sich jedoch infolge des erforderlichen ständigen Wechselspiels zwischen Erwärmung und Kühlung des Stempels keine hohen Leistungen erzielen.It has now been shown that the required performance cannot be achieved when the weld seams are produced only by applying pressure and heat, since the weld seam does not have sufficient strength in the warm state to withstand the weight of the material being filled. It has been found that significantly better results can be achieved if the weld seam is cooled immediately after it has been created. In a corresponding device W is taken by the arrangement so that the welding dies is formed simultaneously as cooling element. With this device, however, due to the required constant interplay between heating and cooling of the stamp, no high performance can be achieved.

Die Aufgabe vorliegender Erfindung liegt daher in der Schaffung eines Verfahrens und einer Vorrichtung zur Erzeugung dichter Quernähte bei einer wesentlichen Leistungssteigerung der Maschine.The object of the present invention is therefore to create a method and a device for production dense transverse seams with a significant increase in machine performance.

Zur Lösung dieser Aufgabe wird nun erfindungsgemäß vorgeschlagen, derart zu verfahren, daß nach dem Festklemmen der Folienbereiche neben der zu bildenden Schweißnaht der Schweißvorgang in an sich bekannter Weise durchgeführt wird und nach dem gleichzeitigen Trennen der Schweißnaht die so erzeugte untere Quernaht des einen und obere Quernaht des anderen Beutels mit Kühlflächen in Kontakt gebracht werden.To solve this problem it is proposed according to the invention to proceed in such a way that after clamping the film areas next to the weld seam to be formed, the welding process is carried out in a manner known per se and after the welding seam has been separated at the same time, the lower transverse seam of one and the upper transverse seam of the other bags are brought into contact with cooling surfaces.

009844/0852009844/0852

Dabei wird so verfahren, daß nach dem Trennen der Schweißnaht jeder Schweißnahtteil«zur Kühlung aus seiner Bewegungsrichtung abgelenkt wird. Durch diese Maßnahme wird erreicht, daß die beim Schweißvorgang entstehende Wärme schlagartig abgeleitet wird, so daß eine dichte Quernahtschweißung entsteht.The procedure here is such that after the weld seam has been separated, each weld seam part moves out of its direction of movement for cooling is distracted. This measure ensures that the heat generated during the welding process is suddenly dissipated so that a tight cross-seam weld is created.

Zur Durchführung dieses Verfahrens findet eine Vorrichtung Verwendung, bei der beiderseits der die Quernaht bzw. Quernähte bildenden aus Schweißstempel und Gegenstempel bestehenden Schweißwerkzeuge Klemmorgane zur Lagesicherung des Folienschlauches während des Schweiß-, Trenn- und Kühlvorgangs vorgesehen sind. Sowohl der Sehweißstempel als auch der Gegenstempel sind dabei zwischen den Klemmorganen geführt. Weiterhin ist die Anordnung so getroffen, daß sowohl der Gegenstempel als auch die den Schweißstempel zwischen sich aufnehmenden Klemmorgane als Kühlmittel führende Hohlkörper ausgebildet sind. Der Gegenstempel und die den Schweißstempel zwischen sich aufnehmenden Klemmorgane weisen im vorderen Bereich schräg verlaufende Flächen auf. Diese schrägen Flächen dienen dazu, die Schweißnaht bzw. Schweißnähte nach dem Trenn Vorgang aus ihrer Bewegungsrichtung abzulenken, wobei diese abgekühlt" werden. Um zu vermeiden, daß die Flächen des Gegenstempels, die bei der Schweißnahtbildung mit dem Schweißstempel zusammenarbeiten, durch die Kühlung des Gegenstempels ebenfalls gekühlt werden, sind diese Flächen mit einem wärmeisolieren-• · To carry out this method, a device is used in which clamping members are provided on both sides of the welding tools that form the transverse seam or transverse seams and consist of the welding stamp and counter stamp to secure the position of the film tube during the welding, separating and cooling process. Both the welding stamp and the counter stamp are guided between the clamping members. Furthermore, the arrangement is made such that both the counter punch and the clamping elements which receive the welding punch between them are designed as hollow bodies carrying coolant. The counter-punch and the clamping elements that accommodate the welding punch between them have surfaces that run at an angle in the front area. These inclined surfaces serve to deflect the weld seam or weld seams out of their direction of movement after the separation process, whereby these are cooled down are also cooled, these surfaces are covered with a heat-insulating • ·

009844/0 β52009844/0 β52

PB-Nr. 156 - 4 -PB no. 156 - 4 -

den Material versehen. Ferner wird zweckmäßigerweise nicht der ganze Gegenstempel, sondern nur der Bereich der beiden schrägen Flächen kühlbar ausgeführt. Um gleichzeitig mit der Bildung der Schweißnaht diese zu trennen und somit den oberen Verschluß des unteren Beutels und den unteren Verschluß des oberen Beutels zu erhalten, ist der Schweißstempel mit einem Trennmesser ausgerüstet.provide the material. Furthermore, it is advisable not to use the entire counter punch, but only the area of the two inclined surfaces designed to be coolable. In order to separate them simultaneously with the formation of the weld seam and thus the To get the top seal of the lower bag and the bottom seal of the top bag is the welding punch equipped with a cutting knife.

^ Im folgenden wird die Erfindung anhand eines zur Durchführung des Verfahrens geeigneten Vorrichtungsbeispiels erläutert.^ In the following the invention is based on one for implementation of the method suitable device example explained.

Es zeigen:Show it:

Fig. 1" - 4 in schematischer Darstellung die Bewegungs-Fig. 1 "- 4 in a schematic representation the movement

steuerung der zur"Schweißnahtbildung erforderlichen Organe;control of the organs required for "welding seam formation;

Fig. 5 in vergrößertem Maßstab die durch die schrägen Flächen aus ihrer Bewegungsrichtung abgelenkte Schweißnaht.5 shows, on an enlarged scale, the direction of movement deflected by the inclined surfaces Weld.

Wie die Figuren erkennen lassen, besteht die Vorrichtung im wesentlichen 'aus einem Schweißstempel 1, der mit einer Heizpatrone 2 und einem Trennmesser 3 versehen ist, einem Gegenstempel 4 und aus sowohl den Schweißstempel 1 als auch den Gegenstempel 4 zwischen sich aufnehmenden Klemmorganen 5» und 7, 8. Sowohl der Gegenstempel 4 als auoh die Klemmorgane 5, 6 weisen in ihrem vorderen Bereich schräg ver- As the figures show, the device consists essentially of a welding die 1, which is provided with a heating cartridge 2 and a cutting knife 3, a counter-stamp 4 and from both the welding stamp 1 and the counter-stamp 4 between them receiving clamping elements 5 "and 7, 8. Both the counter punch 4 and also the clamping elements 5, 6 point obliquely in their front area.

' 009844/0 852'009844/0 852

PB-Ur. 156 - 5 -PB-Ur. 156 - 5 -

laufende Flächen-9, 10 bzw. 11, 12 auf. Diese Flächen 9, "bzw. 11, 12 dienen daz^u, die Schweißnähte nach dem Trennvorgang aus ihrer Bewegungsrichtung abzulenken.running surfaces-9, 10 or 11, 12 on. These surfaces 9, "or 11, 12 are used for this purpose, the weld seams after the separation process divert from their direction of movement.

Wie insbesondere Fig. 5 zeigt, sind der Gegenstempel 4 und die Klemmorgane 5, 6 als Kühlmittel führende Hohlkörper ausgebildet. Dabei ist der Gegenstempel 4 derart ausgeführt, daß hierbei nur die schrägen Flächen 9, 10 gekühlt werden. Um zu vermeiden, daß die Flächen 13» 14 des Gegenstempels 4, die mit dem Schweißstempel 1 zusammenarbeiten, gekühlt werden, sind diese Flächen mit einem wärmeisolierenden Material versehen. As FIG. 5 shows in particular, the counter punch 4 and the clamping elements 5, 6 are designed as hollow bodies that carry coolant. The counter punch 4 is designed in such a way that that here only the inclined surfaces 9, 10 are cooled. In order to avoid that the surfaces 13 »14 of the counter punch 4, which work together with the welding punch 1 are cooled, these surfaces are provided with a heat-insulating material.

Die V/irkungsvyeise der Vorrichtung ist folgende:The device works as follows:

Ausgehend von der mit Fig. 1 veranschaulichten Lage werden zunächst der Gegenstempel 4 und die Klemmorgane 5, 6 und 7, 8 vorbewegt. Wie in Fig. 2 dargestellt ist, wird der Folienschlauch a dabei durch die Klemmorgane 5» 7 und 6, festgehalten, während der Gegenstempel 4 so weit vorbewegt wird, daß die mit dem Isoliermaterial versehenen Flächen den Folienschlauch a berühren. Anschließend wird, wie Fig. zeigt, der Schweißstempel 1 vorbewegt, wobei die Schweißnaht erzeugt und durch das Trennmesser 3 gleichzeitig getrennt wird, so daß die obere Quernaht 15 des einen Beutels und die untere Quernaht 16 des anderen Beutels entsteht. Nach diesem Vorgang wird der Schweißstempel 1 zurückbewegt und gleichzeitig erfährt der Gegenstempel 4 eine Vorbewegung, Starting from the position illustrated with FIG. 1, the counter-punch 4 and the clamping elements 5, 6 and 7, 8 are first moved forward. As shown in Fig. 2, the film tube a is held by the clamping elements 5, 7 and 6, while the counter punch 4 is advanced so far that the surfaces provided with the insulating material touch the film tube a. Then, as shown in FIG. 1, the welding die 1 is moved forward, the weld seam being produced and simultaneously separated by the cutting knife 3 , so that the upper transverse seam 15 of one bag and the lower transverse seam 16 of the other bag are produced . After this process, the welding punch 1 is moved back and at the same time the counter punch 4 experiences a forward movement,

ORIGINAL INSPECTEDORIGINAL INSPECTED

-6- 000044/0862-6- 000044/0862

PB-Nr. 156 - 6 -PB no. 156 - 6 -

wobei die beiden'Quernähte 15, 16 aus ihrer Bewegungsrichtung abgelenkt und zwischen die Kühlflächen 9» 11 und 10, 12 gepreßt werden, Durch dieses Ablenken der Quernähte 15, 16 mit Hilfe des Gegenstempels 4 wird eine verhältnismäßig einfache Vorrichtung zum Kühlen der Quernähte 15, 16 geschaffen, mit der vollkommen dichte Schweißnähte erzielbar sind. Im Anschluß daran werden die einzelnen Organe in die mit Fig. 1 dargestellte Lage zurückbewegt.the two 'transverse seams 15, 16 out of their direction of movement deflected and between the cooling surfaces 9 »11 and 10, 12 are pressed, By this deflection of the transverse seams 15, 16 with the help of the counter punch 4, a relatively simple device for cooling the transverse seams 15, 16 is created, with which completely tight weld seams can be achieved. Subsequently, the individual organs are shown in FIG. 1 position shown moved back.

Ansprüche;Expectations;

009844/0852009844/0852

Claims (8)

PB-Nr. 156 - 7 - P a t e η t_ a η s ρ_ r ü c h ePB no. 156 - 7 - P a t e η t_ a η s ρ_ r ü c h e 1.) Verfahren zur Erzeugung der Querverschlußnähte bei aus einem Folienschlauch aus schweißbarem Material gebildeten Beuteln oder dgl., dadurch gekennzeichnet, daß nach dem Festklemmen der Folienbereiche neben der zu bildenden Schweißnaht der Schweißvorgang in an sich bekannter V/eise durchgeführt wird und nach dem gleichzeitigen Trennen der Schweißnaht die so erzeugte untere Quernaht des einen und obere Quernaht des anderen Beutels mit Kühlflächen'in Kontakt gebracht werden.1.) Method for producing the cross-locking seams at from Bags or the like formed from a film tube made of weldable material, characterized in that after clamping the film areas next to the weld seam to be formed, the welding process in itself known V / eise is carried out and after the simultaneous separation of the weld seam the lower one produced in this way The transverse seam of one bag and the upper transverse seam of the other bag are brought into contact with cooling surfaces. 2.) Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß nach dem Trennen der Schweißnaht jeder Schweißnahtteil zur Kühlung aus seiner Bewegungsrichtung abgelenkt wird,2.) The method according to claim 1, characterized in that after the separation of the weld seam each weld seam part is deflected from its direction of movement for cooling, 3.) Vorrichtung zur Durchführung des Verfahrens nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß beiderseits der die Quernaht bzw. Quernähte bildenden aus Schweißstempel (1) und Gegenstempel (4) bestehenden Schweißwerkzeuge Klemmorgane (5, 6 und 7, 8) zur Lagesicherung des Folienschlauches (a) während des Schweiß-, Trenn- und Kühlvorgangs vorgesehen sind. 3.) Device for carrying out the method according to claims 1 and 2, characterized in that on both sides of the transverse seam or transverse seams forming from welding stamp (1) and counter stamp (4) existing welding tools clamping members (5, 6 and 7, 8) for Securing the position of the film tube (a) during the welding, cutting and cooling process are provided . 0098U/Q8520098U / Q852 PB-Kr, 156 - 8 -PB-Kr, 156 - 8 - 4.) Vorrichtung .nach Anspruch 3» dadurch gekennzeichnet,1 daß Schweißstempel (1) und Gegenstempel (4) jeweils zwischen den Klemmorganen (5, 7 und St 8) geführt sind.4.) Device .nach claim 3 »characterized in that 1 that the welding stamp (1) and counter stamp (4) are each guided between the clamping members (5, 7 and S t 8). 5.) Vorrichtung nach den Ansprüchen 3 und 4? dadurch gekennzeichnet, daß sowohl der Gegenstempel (4) als auch die den Schweißstempel (1) zwischen sich aufnehmenden Klemmorgane (5, 6) als Kühlmittel führende Hohlkörper ausge- * bildet sind.5.) Device according to claims 3 and 4? are characterized in that both the counter-punch (4) designed as also the welding dies (1) receiving between them clamp members (5, 6) leading to a coolant hollow body forms *. 6.) Vorrichtung nach einem oder mehreren der Ansprüche 3 bis 5» dadurch gekennzeichnet, daß der Gegenstempel (4) und die den Schweißstempel (1) zwischen sich aufnehmenden Klemmorgane (5, 6) im vorderen Bereich schräg verlaufende Flächen (9, 10 bzw. 11, 12) aufweisen.6.) Device according to one or more of claims 3 to 5 »characterized in that the counter punch (4) and the clamping elements (5, 6) which receive the welding die (1) between them and which extend obliquely in the front area Have surfaces (9, 10 or 11, 12). 7.) Vorrichtung nach einem oder mehreren der Ansprüche |l 3-6, dadurch gekennzeichnet, daß die bei der Schweißnahtbildung mit dem Schv/eißstempel (1) zusammenarbeitenden Flächen (13» 14) de.s Gegenstempels (4) mit einem wärmeisolierenden Material versehen.sind.7.) Device according to one or more of the claims | l 3-6, characterized in that the weld seam formation with the welding stamp (1) cooperating surfaces (13 »14) of the counter stamp (4) with a heat-insulating material. 8.) Vorrichtung nach einem oder mehreren der Ansprüche 3-7, dadurch gekennzeichnet, daß beim Gegenstempel (4) nur die schräg verlaufenden Flächen (9, 10) kühlbar ausgeführt sind. ,8.) Device according to one or more of the claims 3-7, characterized in that the counter punch (4) only the inclined surfaces (9, 10) are designed to be coolable. , . 0098 U/0852. 0098 U / 0852
DE19681812629 1968-12-04 1968-12-04 Method and device for producing the cross-connection seams in bags formed from a film tube Pending DE1812629A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19681812629 DE1812629A1 (en) 1968-12-04 1968-12-04 Method and device for producing the cross-connection seams in bags formed from a film tube
CH1771869A CH497267A (en) 1968-12-04 1969-11-27 Method and device for producing the cross-sealing seams in bags formed from a film tube
FR6941275A FR2025177A1 (en) 1968-12-04 1969-11-28 Film pack weld and parter for sealing seams - reliably

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681812629 DE1812629A1 (en) 1968-12-04 1968-12-04 Method and device for producing the cross-connection seams in bags formed from a film tube

Publications (1)

Publication Number Publication Date
DE1812629A1 true DE1812629A1 (en) 1970-10-29

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Application Number Title Priority Date Filing Date
DE19681812629 Pending DE1812629A1 (en) 1968-12-04 1968-12-04 Method and device for producing the cross-connection seams in bags formed from a film tube

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Country Link
CH (1) CH497267A (en)
DE (1) DE1812629A1 (en)
FR (1) FR2025177A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19715263A1 (en) * 1997-04-12 1998-10-15 Tetra Laval Holdings & Finance Device for separating plastic films

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4630429A (en) * 1985-02-01 1986-12-23 Baxter Travenol Laboratories, Inc. Apparatus and method for sealing a web of film in a form, fill, and seal packaging system
US4856260A (en) * 1988-10-17 1989-08-15 Baxter International Inc. Apparatus for sealing a web of film in a packaging
US4856259A (en) * 1988-10-17 1989-08-15 Baxter International Inc. Appratus for sealing and severing a web of film
US4999974A (en) * 1990-03-26 1991-03-19 Hayssen Manufacturing Company Method of and apparatus for forming filling and sealing packages
DE19927088A1 (en) * 1999-06-15 2000-12-21 Bosch Gmbh Robert Cross sealing jaw and device and method for sealing and cutting a film web, in particular a film tube
US6544382B2 (en) 1999-11-15 2003-04-08 Pactiv Corporation Apparatus for high-speed heating and cooling of a polymer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19715263A1 (en) * 1997-04-12 1998-10-15 Tetra Laval Holdings & Finance Device for separating plastic films

Also Published As

Publication number Publication date
CH497267A (en) 1970-10-15
FR2025177A1 (en) 1970-09-04

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SH Request for examination between 03.10.1968 and 22.04.1971