AT304061B - Welding device for producing a band-shaped welded connection between at least two foils made of thermoplastic material - Google Patents
Welding device for producing a band-shaped welded connection between at least two foils made of thermoplastic materialInfo
- Publication number
- AT304061B AT304061B AT988666A AT988666A AT304061B AT 304061 B AT304061 B AT 304061B AT 988666 A AT988666 A AT 988666A AT 988666 A AT988666 A AT 988666A AT 304061 B AT304061 B AT 304061B
- Authority
- AT
- Austria
- Prior art keywords
- band
- producing
- thermoplastic material
- welding device
- welded connection
- Prior art date
Links
Classifications
-
- 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
- B29C65/22—Heated wire resistive ribbon, resistive band or resistive strip
- B29C65/221—Heated wire resistive ribbon, resistive band or resistive strip characterised by the type of heated wire, resistive ribbon, band or strip
- B29C65/224—Heated wire resistive ribbon, resistive band or resistive strip characterised by the type of heated wire, resistive ribbon, band or strip being a resistive ribbon, a resistive band or a resistive strip
-
- 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
-
- 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
- B65B51/10—Applying or generating heat or pressure or combinations thereof
- B65B51/14—Applying or generating heat or pressure or combinations thereof by reciprocating or oscillating members
-
- 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
- B29C65/38—Impulse heating
Description
<Desc/Clms Page number 1>
EMI1.1
<Desc/Clms Page number 2>
verhindern, sind bekannte die Bänder mechanisch spannende Einrichtungen (nicht gezeigt) vorgesehen. Die Heizbänder können auch Profilierungen aufweisen. Bei der Ausführungsform gemäss Fig. 2 ist eine extrem dünne Ausführung der Flachheizkörper--12 und 13--wichtig, da ja hier eine Stufe im Ausmass der Summe beider Heizkörperstärken entstehen kann.
Ein weiteres Ausführungsbeispiel ist in Fig. 3 gezeigt, hier sind, wie bei der Ausführungsform gemäss Fig. 2 zwei aufeinanderliegende Flachheizkörper an einem Balken vorgesehen, wogegen die Gegenelektrode als winkelig profilierte Trennelektrode--16--ausgeführt ist, welche stärker geheizt ist, als die beiden Flachheizkörper - -12, 13--.
PATENTANSPRÜCHE :
1. Schweissvorrichtung zur Herstellung einer bandförmigen Schweissverbindung zwischen wenigstens zwei Folien aus thermoplastischem Kunststoff, deren Schweissbalken vorzugsweise impulsartig mittels Bandheizkörper erhitzbar sind, wobei die Bandheizkörper innerhalb der Schweisszone verschieden hoch erhitzbar sind,
EMI2.1
und einer Dicke von höchstens 0, 3 mm über-oder unmittelbar nebeneinander angeordnet sind, wobei der schmälere Bandheizkörper auf eine höhere Temperatur erhitzbar ist, so dass eine Verschweissungsnaht mit über ihre Breite steigendem Verschweissungsgrad erzielbar ist.
EMI2.2
<Desc / Clms Page number 1>
EMI1.1
<Desc / Clms Page number 2>
prevent, known devices (not shown) that mechanically tension the belts are provided. The heating strips can also have profiles. In the embodiment according to FIG. 2, an extremely thin design of the flat radiators - 12 and 13 - is important, since here a step in the amount of the sum of the two radiator thicknesses can arise.
A further embodiment is shown in FIG. 3, here, as in the embodiment according to FIG. 2, two flat heating elements lying one on top of the other are provided on a bar, whereas the counter electrode is designed as an angularly profiled separating electrode - 16 - which is more heated than the two flat radiators - -12, 13--.
PATENT CLAIMS:
1. Welding device for producing a band-shaped weld connection between at least two foils made of thermoplastic material, the welding bars of which can preferably be heated in a pulse-like manner by means of band heating elements, the band heating elements being able to be heated to different levels within the welding zone,
EMI2.1
and a thickness of at most 0.3 mm are arranged above or directly next to one another, the narrower band heater being heatable to a higher temperature, so that a weld seam with a welding degree that increases over its width can be achieved.
EMI2.2
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT988666A AT304061B (en) | 1966-10-24 | 1966-10-24 | Welding device for producing a band-shaped welded connection between at least two foils made of thermoplastic material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT988666A AT304061B (en) | 1966-10-24 | 1966-10-24 | Welding device for producing a band-shaped welded connection between at least two foils made of thermoplastic material |
Publications (1)
Publication Number | Publication Date |
---|---|
AT304061B true AT304061B (en) | 1972-12-27 |
Family
ID=3618180
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT988666A AT304061B (en) | 1966-10-24 | 1966-10-24 | Welding device for producing a band-shaped welded connection between at least two foils made of thermoplastic material |
Country Status (1)
Country | Link |
---|---|
AT (1) | AT304061B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2672566A1 (en) * | 1991-02-11 | 1992-08-14 | Raffault Gerard | Bag support device equipped with a device for closing the bags by means of self-regulated heat sealing (welding) |
WO2004041643A2 (en) * | 2002-11-06 | 2004-05-21 | Cfs Germany Gmbh | Resistance heating |
-
1966
- 1966-10-24 AT AT988666A patent/AT304061B/en not_active IP Right Cessation
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2672566A1 (en) * | 1991-02-11 | 1992-08-14 | Raffault Gerard | Bag support device equipped with a device for closing the bags by means of self-regulated heat sealing (welding) |
WO2004041643A2 (en) * | 2002-11-06 | 2004-05-21 | Cfs Germany Gmbh | Resistance heating |
WO2004041643A3 (en) * | 2002-11-06 | 2004-07-08 | Cfs Germany Gmbh | Resistance heating |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ELJ | Ceased due to non-payment of the annual fee |