CH525755A - Ultrasonic welding plastic tubes - with vee shaped closure nesting within tube periphery - Google Patents

Ultrasonic welding plastic tubes - with vee shaped closure nesting within tube periphery

Info

Publication number
CH525755A
CH525755A CH346471A CH346471A CH525755A CH 525755 A CH525755 A CH 525755A CH 346471 A CH346471 A CH 346471A CH 346471 A CH346471 A CH 346471A CH 525755 A CH525755 A CH 525755A
Authority
CH
Switzerland
Prior art keywords
tubes
anvil
grooves
guide
welding
Prior art date
Application number
CH346471A
Other languages
French (fr)
Original Assignee
Geneco
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 Geneco filed Critical Geneco
Priority to CH346471A priority Critical patent/CH525755A/en
Priority to CH1248071A priority patent/CH530856A/en
Priority to GB829372A priority patent/GB1357472A/en
Priority to FR7206673A priority patent/FR2128374B1/fr
Priority to US00232801A priority patent/US3756900A/en
Priority to SU721756580A priority patent/SU639426A3/en
Priority to DE19722211479 priority patent/DE2211479C3/en
Publication of CH525755A publication Critical patent/CH525755A/en

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
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C31/00—Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
    • B29C31/002—Handling tubes, e.g. transferring between shaping stations, loading on mandrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C57/00—Shaping of tube ends, e.g. flanging, belling or closing; Apparatus therefor, e.g. collapsible mandrels
    • B29C57/10—Closing
    • 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
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • 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
    • 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
    • B29C66/814—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 design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81433—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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined being toothed, i.e. comprising several teeth or pins, or being patterned
    • 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
    • B29C66/814—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 design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8145—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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81457—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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a block or layer of deformable material, e.g. sponge, foam, rubber

Abstract

An ultrasonic welding device for sealing plastic tube-ends comprises a serrated ultrasonic generator-die cooperating with a serrated anvil. The serrations are so shaped that a plastic tube lying in one of the grooves is closed and sealed into a V-shape by the opposite serration entering that groove; this V-shape lies within the tube periphery. A guide at a short distance from the anvil has grooves aligned with the grooves of the anvil. A flexible bearer holds the plastic tubes in the grooves of the guide during welding, while the guide also acts as a buffer to absorb the ultrasonic vibrations and prevent them passing along the tubes. The method is esp. applicable to sealing the ends of plastic tubes contg. semen for artificial insemination, and for other veterinary and medicinal purposes.

Description

       

  
 



  Appareil pour la fermeture au moyen d'un soudage par ultra-sons
 d'une extrémité de tubes en matière plastique
 La présente invention a pour objet un appareil pour la fermeture, au moyen d'un soudage par ultra-sons, d'une extrémité de tubes en matière plastique.



   Dans plusieurs domaines, notamment dans les centres vétérinaires d'insémination artificielle, on utilise des tubes en matière plastique contenant un produit biologique vivant, par exemple une semence animale. Ces tubes, une fois remplis, sont fermés à l'extrémité restée libre par un bouchon d'alcool polyvinylique. Les tubes appelés paillettes sont destinés à être congelés et décongelés et doivent pouvoir supporter des tensions internes et superficielles considérables tout en restant étanches.



   La fermeture au moyen d'un bouchon d'alcool polyvinylique présente plusieurs inconvénients dus au fait que l'alcool polyvinylique est initialement sous forme de poudre: manipulations et nettoyage délicats, source de pollution. On a proposé alors le soudage à chaud ou par une radiation haute fréquence, ou encore la   ferme-    ture au moyen de billes pour éviter ces inconvénients.



  Mais tous ces moyens augmentent les dimensions hors tout des tubes, modifient leur encombrement et ne constituent pas des barrières à la pollution.



   L'assemblage des tubes thermoplastiques rigides par ultra-sons doit permettre d'assurer le soudage en éliminant tout risque de souillure ou de pollution. Il   s'ap    parente à un soudage par frottement au niveau des surfaces de contact des pièces à assembler. Pour le réaliser, on applique un outil vibrant à une fréquence ultrasonique perpendiculairement à la surface d'une des pièces a souder.



   Le transfert d'énergie vibratoire s'effectue par contact de l'outil vibrant sur la matière plastique. L'élément qui est le siège du transfert d'énergie entre en vibration suivant un train d'ondes stationnaires transversales, avec un maximum d'amplitude sur les surfaces en contact des pièces à assembler. Sous l'effet des ultra-sons, la pièce soumise à l'outil vibrant prend un mouvement relatif local alors que la seconde pièce de l'assemblage reste inerte. L'application d'une pression donnée, conjuguée avec l'action des ultra-sons, produit un mouvement de frottement alternatif à fréquence élevée sur les surfaces des pièces. La chaleur dégagée fond brusquement la matière plastique des deux pièces, ce qui, après refroidissement, donne un soudage homogène et solide.



   En outre, les parties touchées par la vibration sont parfaitement stérilisées, en particulier les surfaces extérieures de l'extrémité des tubes qui peuvent être souillés par des débordements du produit qu'ils contiennent.



  Ceci est particulièrement important pour éviter les contaminations ultérieures d'un tube à un autre.



   En revanche, il faut empêcher que cette stérilisation, par destructions des cellules, se transmette au-delà de la zone de soudage à une partie du tube où le produit vivant doit être conservé dans sa totalité.



   Il est nécessaire aussi lors du soudage des tubes pour la conservation de produits biologiques et en vue des manutentions ultérieures que l'obturation ne modifie pas le diamètre extérieur hors tout du tube. Autrement dit, il faut que la partie terminale du tube soudé s'inscrive parfaitement à l'intérieur de la circonférence extérieure du tube initial, et ce dernier doit rester parfaitement rectiligne.



   Le but de l'invention est donc de fournir un appareil permettant de réaliser ces exigences.



   L'appareil selon l'invention comprenant une matrice génératrice d'ultra-sons et une enclume, ces pièces venant serrer entre elles ladite extrémité des tubes pour le soudage, est caractérisé en ce que la matrice comprend des saillies et l'enclume présente des gorges en regard des saillies et de forme complémentaire à celles-ci, le profil des saillies et des gorges permettant de donner à ladite extrémité des tubes une section en V qui s'inscrit dans la  circonférence extérieure des tubes quand la matrice vient s'appuyer contre les tubes pour le soudage, et en ce qu'il comprend un guide soutenant les tubes à distance de l'enclume et présentant des gorges alignées avec celles de l'enclume pour que les tubes se présentent correctement dans celles-ci,

   et un organe de pression élastique agencé pour venir presser les tubes sur le guide au moment du soudage afin que le guide absorbe la vibration ultrasonique et l'empêche de se propager le long des tubes au-delà du guide.



   Le dessin annexé représente, à titre d'exemple, une forme d'exécution de l'appareil selon l'invention.



   La fig. 1 est une vue schématique en perspective de cette forme d'exécution, et
 la fig. 2 est une vue en perspective d'une extrémité soudée d'un tube.



   L'appareil présenté (fig. 1) comprend une matrice 1 génératrice d'ultra-sons, présentant des saillies 2. Audessous de la matrice est disposée une enclume 3 présentant des gorges 4 en regard des saillies 2. Les profils complémentaires des saillies 2 et des gorges 4   permet-    tent de donner aux tubes pressés entre la matrice et l'enclume une section 5 en V (fig. 2) qui s'inscrit entièrement dans la circonférence du tube.



   Un guide 6 est disposé à une courte distance de l'enclume 3 et présente des gorges 7 disposées en face des gorges 4 de l'enclume. Les tubes à souder non   représen-    tés à la fig. 1 sont disposés dans les gorges 7 et 4, l'extrémité à souder des tubes étant placée dans les gorges 4 à fleur de la surface extérieure de l'enclume 3 et les tubes s'étendant au-delà du guide 6 en direction   opposée    à celle de l'enclume 3. Le guide 6 permet de présenter les tubes de façon correcte dans l'enclume pour le soudage.



   Un organe de pression 8 est disposé au-dessus du guide 6 et porte à sa partie inférieure un tampon élastique 9, en caoutchouc par exemple.



   L'appareil fonctionne de la façon suivante: l'enclume 3 et le guide 6 sont fixes, et les tubes à souder sont disposés dans les rainures 4 et 7. La matrice 1 produisant la vibration ultrasonore est alors abaissée en même temps que l'organe de pression 8 de manière que lorsque la matrice 1 vient serrer les tubes dans les gorges 4 de l'enclume, le tampon élastique 9 vienne presser les tubes dans les encoches 7 du guide 6. Ainsi, pendant le   sQu-    dage de l'extrémité des tubes, le guide 6 absorbe la vibration ultrasonore transmise par les tubes depuis la matrice 1 et l'empêche de se propager le long des tubes.



   La matière vivante disposée dans les tubes est stérilisée à l'extrémité soudée des tubes mais reste vivante dans les tubes au-delà du guide 6, ne subissant aucune vibration.



   Un ressort réglable peut assurer la pression voulue de la matrice sur les tubes disposés dans l'enclume. On peut utiliser un interrupteur à came placé sur le châssis de l'appareil pour régler le temps d'émission des ondes ultrasonores pendant que la matrice est en position basse. 



  
 



  Apparatus for closing by means of ultrasonic welding
 one end of plastic tubes
 The present invention relates to an apparatus for closing, by means of ultrasonic welding, one end of plastic tubes.



   In several fields, in particular in veterinary artificial insemination centers, plastic tubes containing a living biological product, for example animal semen, are used. These tubes, once filled, are closed at the free end with a stopper of polyvinyl alcohol. Tubes called flakes are intended to be frozen and thawed and must be able to withstand considerable internal and surface tensions while remaining tight.



   Closure with a stopper of polyvinyl alcohol has several drawbacks due to the fact that the polyvinyl alcohol is initially in powder form: delicate handling and cleaning, a source of pollution. Hot welding or welding by high frequency radiation, or else sealing by means of balls, has therefore been proposed to avoid these drawbacks.



  But all these means increase the overall dimensions of the tubes, modify their size and do not constitute barriers to pollution.



   The assembly of rigid thermoplastic tubes by ultrasound must make it possible to ensure welding while eliminating any risk of soiling or pollution. It is similar to friction welding at the contact surfaces of the parts to be assembled. To achieve this, a tool vibrating at an ultrasonic frequency is applied perpendicular to the surface of one of the parts to be welded.



   The transfer of vibratory energy takes place by contact of the vibrating tool on the plastic material. The element which is the seat of the energy transfer begins to vibrate in a train of transverse standing waves, with a maximum amplitude on the surfaces in contact with the parts to be assembled. Under the effect of ultrasound, the part subjected to the vibrating tool takes on a local relative movement while the second part of the assembly remains inert. The application of a given pressure, combined with the action of ultrasound, produces a high-frequency alternating friction movement on the surfaces of the parts. The heat released suddenly melts the plastic of the two parts, which, after cooling, gives a homogeneous and solid weld.



   In addition, the parts affected by the vibration are perfectly sterilized, in particular the outer surfaces of the end of the tubes which can be soiled by overflows of the product they contain.



  This is particularly important to avoid subsequent contamination from one tube to another.



   On the other hand, it is necessary to prevent this sterilization, by destruction of the cells, from being transmitted beyond the welding zone to a part of the tube where the living product must be stored in its entirety.



   It is also necessary when welding tubes for the conservation of biological products and for subsequent handling that the sealing does not modify the overall outside diameter of the tube. In other words, it is necessary that the end part of the welded tube fits perfectly inside the outer circumference of the initial tube, and the latter must remain perfectly rectilinear.



   The aim of the invention is therefore to provide an apparatus making it possible to meet these requirements.



   The apparatus according to the invention comprising an ultrasound generator matrix and an anvil, these parts clamping together said end of the tubes for welding, is characterized in that the matrix comprises projections and the anvil has grooves facing the protrusions and of complementary shape thereto, the profile of the protrusions and grooves making it possible to give said end of the tubes a V-shaped section which fits into the outer circumference of the tubes when the die comes to rest against the tubes for welding, and in that it comprises a guide supporting the tubes at a distance from the anvil and having grooves aligned with those of the anvil so that the tubes are placed correctly therein,

   and an elastic pressure member arranged to come to press the tubes on the guide at the time of welding so that the guide absorbs the ultrasonic vibration and prevents it from propagating along the tubes beyond the guide.



   The appended drawing represents, by way of example, an embodiment of the apparatus according to the invention.



   Fig. 1 is a schematic perspective view of this embodiment, and
 fig. 2 is a perspective view of a welded end of a tube.



   The apparatus presented (fig. 1) comprises a matrix 1 generating ultrasound, having projections 2. Below the matrix is an anvil 3 having grooves 4 facing the projections 2. The complementary profiles of the projections 2 and grooves 4 make it possible to give the tubes pressed between the die and the anvil a V-section 5 (fig. 2) which fits entirely within the circumference of the tube.



   A guide 6 is disposed a short distance from the anvil 3 and has grooves 7 disposed opposite the grooves 4 of the anvil. The tubes to be welded not shown in fig. 1 are arranged in the grooves 7 and 4, the weld end of the tubes being placed in the grooves 4 flush with the outer surface of the anvil 3 and the tubes extending beyond the guide 6 in the opposite direction to that of the anvil 3. The guide 6 makes it possible to present the tubes correctly in the anvil for welding.



   A pressure member 8 is arranged above the guide 6 and carries at its lower part an elastic buffer 9, made of rubber for example.



   The apparatus works as follows: the anvil 3 and the guide 6 are fixed, and the tubes to be welded are arranged in the grooves 4 and 7. The die 1 producing the ultrasonic vibration is then lowered at the same time as the pressure member 8 so that when the die 1 clamps the tubes in the grooves 4 of the anvil, the elastic buffer 9 presses the tubes in the notches 7 of the guide 6. Thus, during the sQu- dage of the end of the tubes, the guide 6 absorbs the ultrasonic vibration transmitted by the tubes from the die 1 and prevents it from propagating along the tubes.



   The living material placed in the tubes is sterilized at the welded end of the tubes but remains alive in the tubes beyond the guide 6, not undergoing any vibration.



   An adjustable spring can ensure the desired pressure of the die on the tubes arranged in the anvil. A cam switch placed on the frame of the apparatus can be used to adjust the emission time of the ultrasonic waves while the matrix is in the down position.

Claims (1)

REVENDICATION CLAIM Appareil pour la fermeture, au moyen d'un soudage par ultra-sons, d'une extrémité de tubes en matière plastique, comprenant une matrice génératrice d'ultra-sons et une enclume, ces pièces venant serrer entre elles ladite extrémité des tubes pour le soudage, caractérisé en ce que la matrice comprend des saillies et l'enclume présente des gorges en regard des saillies et de forme complémentaire à celles-ci, le profil des saillies et des gorges permettant de donner à ladite extrémité des tubes une section en V qui s'inscrit dans la circonférence extérieure des tubes quand la matrice vient s'appuyer contre les tubes pour le soudage, Apparatus for closing, by means of ultrasonic welding, one end of plastic tubes, comprising an ultrasonic generating matrix and an anvil, these parts clamping said end of the tubes together to welding, characterized in that the die comprises protrusions and the anvil has grooves facing the protrusions and of complementary shape thereto, the profile of the protrusions and grooves making it possible to give said end of the tubes a cross section V which fits into the outer circumference of the tubes when the die comes to rest against the tubes for welding, et en ce qu'il comprend un guide soutenant les tubes à distance de l'enclume et présentant des gorges alignées avec celles de l'enclume pour que les tubes se présentent correctement dans cellesci et un organe de pression élastique agencé pour venir presser les tubes sur le guide au moment du soudage afin que le guide absorbe la vibration ultrasonique et l'empêche de se propager le long des tubes au-delà du guide. and in that it comprises a guide supporting the tubes at a distance from the anvil and having grooves aligned with those of the anvil so that the tubes are presented correctly therein and an elastic pressure member arranged to press the tubes on the guide when welding so that the guide absorbs ultrasonic vibration and prevents it from propagating along the tubes beyond the guide.
CH346471A 1971-03-09 1971-03-09 Ultrasonic welding plastic tubes - with vee shaped closure nesting within tube periphery CH525755A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CH346471A CH525755A (en) 1971-03-09 1971-03-09 Ultrasonic welding plastic tubes - with vee shaped closure nesting within tube periphery
CH1248071A CH530856A (en) 1971-03-09 1971-08-25 Apparatus for closing, by means of ultrasonic welding, one end of plastic tubes
GB829372A GB1357472A (en) 1971-03-09 1972-02-23 Ultrasonic welding
FR7206673A FR2128374B1 (en) 1971-03-09 1972-02-28
US00232801A US3756900A (en) 1971-03-09 1972-03-08 Lastic materials apparatus for ultrasonically welding the ends of tubes in synthetic p
SU721756580A SU639426A3 (en) 1971-03-09 1972-03-09 Device for ultrasonic welding
DE19722211479 DE2211479C3 (en) 1971-03-09 1972-03-09 Ultrasonic welding device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH346471A CH525755A (en) 1971-03-09 1971-03-09 Ultrasonic welding plastic tubes - with vee shaped closure nesting within tube periphery

Publications (1)

Publication Number Publication Date
CH525755A true CH525755A (en) 1972-07-31

Family

ID=4256505

Family Applications (1)

Application Number Title Priority Date Filing Date
CH346471A CH525755A (en) 1971-03-09 1971-03-09 Ultrasonic welding plastic tubes - with vee shaped closure nesting within tube periphery

Country Status (1)

Country Link
CH (1) CH525755A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2732264A1 (en) * 1995-03-31 1996-10-04 Plg Packaging Ultrasonic welding appts.
EP0820842A1 (en) * 1996-07-22 1998-01-28 Eastman Kodak Company Ultrasonic cutting apparatus and method
WO2006082037A1 (en) * 2005-02-02 2006-08-10 Schunk Ultraschalltechnik Gmbh Ultrasound welding device with opposite welding and lateral surfaces that delimit a compression space, and a compression space

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2732264A1 (en) * 1995-03-31 1996-10-04 Plg Packaging Ultrasonic welding appts.
EP0820842A1 (en) * 1996-07-22 1998-01-28 Eastman Kodak Company Ultrasonic cutting apparatus and method
WO2006082037A1 (en) * 2005-02-02 2006-08-10 Schunk Ultraschalltechnik Gmbh Ultrasound welding device with opposite welding and lateral surfaces that delimit a compression space, and a compression space
US7878384B2 (en) 2005-02-02 2011-02-01 Schunk Ultaschalltechnik Gmbh Ultrasonic welding device with opposite welding and lateral surfaces that delimit a compression space, and compression space
CN101146640B (en) * 2005-02-02 2012-06-20 申克超声波技术有限责任公司 Compression space and tool for constraining the compression space

Similar Documents

Publication Publication Date Title
CH630024A5 (en) CLOSING, PARTICULARLY FOR A CONTAINER.
FR2560516A1 (en) DEVICE FOR INSERTION IN A BODY CAVITY OF AN ANIMAL, AND ITS APPLICATOR
FR2445121A1 (en) OBJECT FOR HANDHELD, PARTICULARLY SUITCASE HANDLE, AND METHOD FOR MANUFACTURING THE OBJECT
CH642248A5 (en) SCARIFIER DEVICE.
FR2488582A1 (en) METHOD AND APPARATUS FOR FILLING AND CLOSING PLASTIC BAGS CONTAINING FLUID CONTAINERS AND PRODUCTS OBTAINED THEREFROM
US3756900A (en) Lastic materials apparatus for ultrasonically welding the ends of tubes in synthetic p
CH525755A (en) Ultrasonic welding plastic tubes - with vee shaped closure nesting within tube periphery
FR2366996A1 (en) APPARATUS AND METHOD FOR FORMING A JOINT BETWEEN LAYERS OF A THERMOPLASTIC COATED CARDBOARD BOX
EP0527676A1 (en) Single-use injection nozzle for straw filling machine, especially for artificial insemination of animals and conservation of biological products
JP3926166B2 (en) Packaging bag sealing method and filled and sealed packaging bag
AR040794A1 (en) SEALED PACKAGING FOR LIQUID AND SEMILIQUID FOOD PRODUCTS
CH533542A (en) Apparatus for filling tubes with liquid
FR2732264A1 (en) Ultrasonic welding appts.
CH627963A5 (en) METHOD FOR CLOSING A HANDLE IN THERMO-PLASTIC MATERIAL BY WELDING AND DEVICE FOR CARRYING OUT SAID METHOD.
FR2477469A1 (en) DEVICE FOR COATING STEEL TUBES USING A THERMOPLASTIC SHEET
EP2925255A1 (en) Sanitary sheath for an insemination syringe for insemination by means of a straw, and the production method thereof
FR2787719A1 (en) Disposable plastic or glass one-time syringe has fixed and retractable vanes on plunger engaging with stop ring in barrel when syringe is used
FR2833483A1 (en) Supple perfusion pouch connecting nozzle comprises tube with inner membrane, annular projection for fastening to pouch and removable cap
CH314407A (en) Air vacuum hanger press
CH351533A (en) Packing process
FR3049467A1 (en) PORT, DISTRIBUTION SYSTEM COMPRISING SUCH PORT, AND METHOD OF MANUFACTURE
CH372590A (en) Device for transporting bottles
BE776172Q (en) Joining thermoplastics casings
FR2529076A1 (en) DEVICE FOR THE THERAPEUTIC TREATMENT AND STIMULATOR, COMBINED, GENCIVES
FR2769477A1 (en) Process to fix bristles into brush head

Legal Events

Date Code Title Description
PL Patent ceased