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WO2009068227A1 - Dispositif pour fermer des récipients en matière plastique - Google Patents

Dispositif pour fermer des récipients en matière plastique Download PDF

Info

Publication number
WO2009068227A1
WO2009068227A1 PCT/EP2008/009893 EP2008009893W WO2009068227A1 WO 2009068227 A1 WO2009068227 A1 WO 2009068227A1 EP 2008009893 W EP2008009893 W EP 2008009893W WO 2009068227 A1 WO2009068227 A1 WO 2009068227A1
Authority
WO
WIPO (PCT)
Prior art keywords
anvil
ultrasonic
holding device
closed position
ultrasonic vibrator
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.)
Ceased
Application number
PCT/EP2008/009893
Other languages
German (de)
English (en)
Inventor
Hubert Stanglmayr
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.)
Minitueb Abfuell und Labortechnik GmbH and Co KG
Original Assignee
Minitueb Abfuell und Labortechnik GmbH and Co 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 Minitueb Abfuell und Labortechnik GmbH and Co KG filed Critical Minitueb Abfuell und Labortechnik GmbH and Co KG
Publication of WO2009068227A1 publication Critical patent/WO2009068227A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61D—VETERINARY INSTRUMENTS, IMPLEMENTS, TOOLS, OR METHODS
    • A61D19/00—Instruments or methods for reproduction or fertilisation
    • A61D19/02—Instruments or methods for reproduction or fertilisation for artificial insemination
    • A61D19/022—Containers for animal semen, e.g. pouches or vials ; Methods or apparatus for treating or handling animal semen containers, e.g. filling or closing
    • A61D19/024—Tube-like containers, e.g. straws
    • 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
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7841—Holding or clamping means for handling purposes
    • 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
    • B29C66/326—Shaping the burr, e.g. by the joining 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
    • B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
    • B29C66/328—Leaving the burrs unchanged for providing particular properties to the joint, e.g. as decorative effect
    • B29C66/3282—Leaving the burrs unchanged for providing particular properties to the joint, e.g. as decorative effect for reinforcing the joint
    • 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
    • B29C66/43121—Closing the ends of tubular or hollow single articles, e.g. closing the ends of bags
    • 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
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/841—Machines or tools adaptable for making articles of different dimensions or shapes or for making joints of different dimensions
    • B29C66/8414—Machines or tools adaptable for making articles of different dimensions or shapes or for making joints of different dimensions of different diameter
    • 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
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/843—Machines for making separate joints at the same time in different planes; Machines for making separate joints at the same time mounted in parallel or in series
    • 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
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/849—Packaging machines
    • B29C66/8491—Packaging machines welding through a filled container, e.g. tube or bag
    • 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
    • B65B51/22—Applying or generating heat or pressure or combinations thereof by friction or ultrasonic or high-frequency electrical means, i.e. by friction or ultrasonic or induction welding
    • B65B51/225—Applying or generating heat or pressure or combinations thereof by friction or ultrasonic or high-frequency electrical means, i.e. by friction or ultrasonic or induction welding by ultrasonic welding
    • 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
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/005—Hoses, i.e. flexible
    • B29L2023/007—Medical tubes other than catheters
    • 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

Definitions

  • the invention relates to an apparatus and a method for closing plastic containers and in particular for welding plastic tubes, which are suitable for Aufnahe of animal seeds, such as cattle or horses.
  • sequins Animal semen of cattle or horses are usually in so-called sequins, i. Plastic tubes with a diameter of 1, 95 mm or 2.9 mm and a length of about 133 mm filled and stored the sequins after sealing in liquid nitrogen. In this way, animal semen can be stored for long periods without loss of quality.
  • the sequins are usually sealed after filling with seminal fluid in automatic welding systems at least at one end.
  • an apparatus for welding portions of material of a container, such as wall sections of a plastic tube by means of ultrasound comprising an anvil, an ultrasound transducer for delivering ultrasound and a holding device, the anvil being positioned relative to the ultrasonic viewer and the holding means between an open position and a closed position is movable so that in the closed position, two overlapping portions of material between the anvil and the ultrasonic vibrator and between the anvil and the holding means can be held and connected to each other under the action of ultrasound.
  • the material sections of a tube for holding animal semen are not only held between an anvil and an ultrasonic vibrator and welded under the action of ultrasound and pressure, but the device according to the invention comprises, in addition to the ultrasonic oscillator, an additional cooperating with the anvil Holding device, which is structurally separated from the ultrasonic vibrator and from which no ultrasonic energy emanates.
  • the sections of material to be welded are therefore held during welding not only between the anvil and the ultrasonic vibrator, but in addition between the anvil and the holding device. This has the advantage that the material sections to be welded are held at least at a point at which no direct entry of ultrasonic energy into the material sections takes place.
  • the material sections are more accurately held in position with the anvil closed and are not affected by ultrasound generated vibrations, which leads to better reproducible results in terms of weld quality.
  • the weld site can be symmetrical with the tube with high reproducibility, i. be made substantially on the axis of symmetry of the tube
  • the ultrasonic vibrator and the holding device are arranged side by side, while the anvil and the ultrasonic vibrator and the anvil and the holding device in the closed position of the device are opposite.
  • the anvil and the ultrasonic oscillator have at least one engagement surface, wherein the engagement surfaces are opposite in the closed position. Both engagement surfaces preferably have the same width and substantially the same size.
  • the holding device is arranged next to the ultrasonic oscillator and arranged so that in the closed position, the material portions of a tube between the anvil and the ultrasonic transducer and the anvil and the holding device are held while the tube adjacent to the holding device and of the ultrasonic oscillator the holding device is separated, arranged.
  • the tube and also the approximate material sections in the transition region during welding are substantially shielded from the ultrasound oscillations emanating from the ultrasonic vibrator and a negative effect of the ultrasound, such as the excitation of vibrations of the material sections, can be avoided.
  • the distance between the anvil and the holding device is greater than the distance between the anvil and the ultrasonic vibrator or the distance between their engagement surfaces. If the holding device is arranged next to the ultrasonic vibrator, that it is close to the edge of the contacting material portions, it can be achieved that melted, due to the application of pressure between the anvil and the ultrasonic oscillator in the direction of the tube material flowing approximately at the Edge accumulates between the contacting between the anvil and the holding means material portions of the tube, so that the wall portions of the tube are reinforced at the edge by additional material.
  • the holding device has an engagement surface which is arranged parallel to the engagement surface of the ultrasonic vibrator and is set back from this.
  • molten material may accumulate in this region and contribute to strengthening the weld, particularly at the inner edge of the contacting material portions.
  • the apparatus comprises means adapted and movable to move the space formed in the closed position between the opposing engagement surfaces of the anvil and the ultrasonic viewer and optionally between the opposed engagement surfaces of the anvil and the support means closes laterally at least on two opposite sides. This ensures that molten material of the wall sections at the end can not flow off to the side, but in the direction of the straight edge between the contacting wall sections at the front of the device, where it can contribute to a reinforcement of the weld.
  • the anvil and the holding device each have a bevelled front surface that is inclined relative to the plane of the engagement surface of the anvil and the ultrasonic vibrator and in the closed position of the device form a funnel formed in between the surfaces the anvil and the holding device and the ultrasonic oscillator formed space opens.
  • the anvil and the ultrasonic oscillator and the holding device each have a plurality of juxtaposed surfaces for the simultaneous welding of a plurality of containers or tubes.
  • the areas may differ have sizes so that containers or tubes of different sizes can be welded with one and the same device.
  • a method for welding sections with a device having the features described above comprises the steps of disposing two overlapping portions of material on the ultrasonic transducer and the support, moving the anvil to the ultrasonic transducer, and the support so that the portions engage and engage the engagement surfaces of the anvil, the ultrasonic vibrator, and the support and introducing ultrasound energy from the ultrasonic transducer into the material sections so that they weld together.
  • a movement, in particular a parallel movement of the ultrasonic oscillator and the holding device to the anvil can take place.
  • only the relative movement between the anvil and the ultrasonic vibrator and the holding device is crucial for the welding process.
  • the method according to the invention has the advantage that the material sections to be welded are merely held at at least one point between the anvil and the holding device, without any direct entry of ultrasonic energy into the material sections at this location.
  • the wall sections can be better held in position and better reproducible welding can be achieved.
  • the material sections are shaped by the bevelled front sides of the anvil and the holding device.
  • the wall sections originally forming a cylindrical shape are approximated by the front sides, so that they finally touch along an edge at the front of the closed anvil.
  • the welding of the sections takes place by simultaneously exerting pressure through the surfaces of the anvil and the ultrasonic vibrator and by introducing ultrasonic energy into the sections.
  • the pressure on the one hand, the contact between the sections and the ultrasonic transducer is amplified, so that the ultrasonic energy can be registered more efficiently in the material sections.
  • the molten material portions are bonded and welded together by the applied pressure.
  • the introduction of ultrasonic energy from the ultrasonic transducer into the sections begins before the anvil reaches the final position and maximum pressure is applied to the sections.
  • the method may, according to yet another embodiment, comprise the lateral closure of the space formed by the surfaces of the anvil and the ultrasonic vibrator.
  • Fig. 1 shows schematically an arrangement of a seed tube in the inventive
  • Fig. 2 is a perspective view of the device according to the invention according to a
  • 6a and 6b show a chamber limiting device of the device according to the invention of the embodiment shown in FIG. 2;
  • Fig. 7 shows the device according to the invention according to the embodiment shown in Fig. 2 in a sectional view
  • the device according to the invention will now be described in accordance with an exemplary embodiment with reference to the figures.
  • an apparatus for welding portions of material, in particular wall portions of a container, such as a tube 1 for receiving seminal fluid comprises an anvil 2 which is movable between an open and a closed position.
  • the anvil 2 is pivotally mounted to the device.
  • the device further comprises an ultrasonic transducer 3, such as a so-called sonotrode, which can be excited to oscillate at a frequency of, for example, 40 kHz.
  • the device comprises a holding device 4, such as a counter-holder.
  • the ultrasonic oscillator 3 and the holding device 4 are arranged directly next to one another.
  • the anvil 2 is mounted on the device so that in a closed position of the device, as shown in Figures 1, 2 and 7, engaging surfaces 5 and 6 of the anvil and the ultrasonic vibrator 3 are opposite each other and substantially parallel to each other are oriented.
  • the lateral distance between the holding device 4 and the ultrasound oscillator 3 is very small, for example, 10 .mu.m, 20 .mu.m or 50 .mu.m include.
  • Between the engagement surfaces 5 and 6 of the anvil 2 and the ultrasonic vibrator 3 opposite wall portions 7 and 8 of the tube 1 can be maintained.
  • the anvil 2 and the ultrasonic vibrator 3 are arranged in relation to each other so that the engagement surfaces 5 and 6 of the anvil 2 and the ultrasonic vibrator 3 in the closed position have a small distance from each other, such as 100 microns, 200 microns, 500 microns or 1 mm ,
  • the engagement surface 5 of the anvil 2 further comprises a portion with a recessed relative to the engagement surface 5 surface 9. By this recessed surface 9 of the engagement surface 5 additional space between the engagement surfaces 5 and 6 of the anvil 2 and the ultrasonic vibrator 3 is obtained, which can serve to receive molten material of the material sections 7, 8 of the tube 1. As can be seen in FIGS.
  • the holding device 4 is mounted between the ultrasonic vibrator 3 and a tube 1 arranged in the device on the device.
  • the holding device 4 comprises an engagement surface 10, which is aligned parallel to the engagement surface 6 of the ultrasonic vibrator 3, but compared to the engagement surface 6 of the ultrasonic vibrator 3, for example, by 100 microns, 200 microns, 500 microns or 1 mm set back.
  • the recessed engagement surface 10 is achieved that molten material of the wall portions 7, 8 of the tube 1 to the edge between the contacting wall sections 7, 8 flow into the interior of the tube and can accumulate there, so that a bead 11 is formed, which Welding between the wall sections 7, 8 reinforced.
  • the engagement surface 10 as compared to a sharp edge, a lesser selective pressure on the wall portion 8 of the tube 1 is generated, so that the risk of tearing of the wall portion 8 and thus a leakage of the tube 1 is reduced.
  • the anvil 2 and the holding device 4 each have beveled front surfaces 12, 13 which have an angle of 45 ° relative to the planes of the engagement surfaces 5 and 6 of the anvil 2 and the ultrasonic vibrator 3.
  • the inclination angle shown here is only an example and other angles of inclination may be suitable.
  • Other than the planar front surfaces shown here differently shaped ones such as e.g. curved front surfaces are used.
  • the beveled front surfaces 12 and 13 serve as abutment surfaces for the wall sections 7, 8 of the tube 1 and for forming the transition from the cylindrical shape formed by the wall sections 7 and 8 of the tube 1 to the edge between the contacting wall sections 7, 8 at the end of the bevelled Front surfaces 12, 13.
  • the wall sections 7 and 8 of the tube are held between the anvil 2 and the holding device 4 and the anvil and the ultrasonic oscillator 3. Since the holding device 4 is not excited to vibrate and is positioned between the tube and the ultrasonic vibrator, ultrasonic vibrations of the wall sections 7 and 8, in particular in the transition region between the cylindrical wall portions of the tube and touching the edge material portions are kept away, so that no Uncontrolled shifts or deformations of the material sections due to vibrations occur and more reproducible welding results can be achieved. Furthermore, will be Exposing the ultrasonic energy to a recorded in the tube 1 seminal fluid avoided.
  • the anvil 2, the ultrasonic vibrator 3 and the holding device 4 comprise a plurality of identical engagement surfaces 5, 6 and 10 (for example 8) side by side.
  • the engagement surfaces 5, 6 and 10 have a different width.
  • several tubes 1 and also tubes 1 of different diameters can be welded simultaneously.
  • the areas of the engagement surfaces of the anvil 3 and the ultrasonic vibrator 3 have a size of about 2 x 2 mm.
  • the engagement surfaces of the holding device 4 may, for example, have an area of 2 ⁇ 0.5 mm.
  • each recesses 15, 16 and 17 are provided, can engage in the teeth 18 of a chamber boundary 19.
  • the teeth 18 of the chamber boundary 19 serve to laterally define the space defined between the engagement surfaces 5, 6 and 10 of the anvil 2, the ultrasonic vibrator 3 and the holding device 4, so that molten material of the wall sections 7, 8 only in the direction of the tube 1 or opposite thereto, but can not flow laterally out of the space defined by the engagement surfaces.
  • the anvil 2, the ultrasonic vibrator 3, the retainer 4 and the chamber boundary 19 are mounted in the device on a frame 20, as shown in Fig. 2, wherein the anvil 2 and the chamber boundary 19 by means of (not shown in Figs ) Mechanism 'be kept pivotable.
  • a tube 1 is arranged next to the engagement surfaces 10 and 6 of the holding device 4 or of the ultrasonic vibrator 3.
  • the anvil is 2 pivoted in the open position and is thus removed from the holding device 4 and the ultrasonic transducer 3.
  • the anvil 2 is pivoted in the direction of the holding device 4 and the ultrasonic vibrator 3, so that the engagement surfaces 5 of the anvil 2, the engagement surface 6 of the ultrasonic vibrator 3 and the engagement surface 10 of the holding device 4 brought into contact with the wall sections 7 and 8 of the tube 1 become.
  • the wall sections 7 and 8 are approximated in the end region of the tube 1.
  • the ultrasonic vibrator 3 is preferably ultrasonically vibrated by an ultrasonic generator (not shown) before the anvil 2 has reached its final closed position so as to introduce ultrasonic energy into the wall sections 7, 8 as soon as possible.
  • the precise timing at which the ultrasonic vibrator is vibrated relative to the closing movement of the anvil 2 is variable and adjustable.
  • the ultrasonic vibrator 3 is operated at a frequency of 40 kHz. However, this value is variable.
  • the additional liquid material results in the formation of a bead 11 which results in an increase in the welding between the wall portions 7 and 8 at the front contact edge.
  • the formation of the bead 11 is facilitated by the engagement surface 10 of the Holder device 4 is set back relative to the engagement surface 6 of the ultrasonic vibrator 3.
  • the ultrasonic generator is switched off, so that the fused material of the wall sections 7, 8 can cool. Thereafter, the chamber boundary 19 is removed from the spaces in the engagement surfaces and the anvil 2 is pivoted away.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Reproductive Health (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

Dispositif pour souder des portions de matériau (7, 8) par ultrasons, comprenant une enclume (2), un générateur d'ultrasons (3) et un organe de maintien (4). L'enclume (2) peut être, par rapport au générateur d'ultrasons (3) et à l'organe de maintien (4), déplacée entre une position ouverte et une position fermée de telle sorte que, dans la position fermée, deux portions de matériau (7, 8) en recouvrement mutuel peuvent être maintenues entre l'enclume (2) et le générateur d'ultrasons (3) et entre l'enclume (2) et l'organe de maintien (4), et assemblées l'une à l'autre sous l'action des ultrasons.
PCT/EP2008/009893 2007-11-26 2008-11-21 Dispositif pour fermer des récipients en matière plastique Ceased WO2009068227A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007056737A DE102007056737A1 (de) 2007-11-26 2007-11-26 Vorrichtung zum Verschließen von Kunststoffbehältern
DE102007056737.7 2007-11-26

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WO2009068227A1 true WO2009068227A1 (fr) 2009-06-04

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PCT/EP2008/009893 Ceased WO2009068227A1 (fr) 2007-11-26 2008-11-21 Dispositif pour fermer des récipients en matière plastique

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WO (1) WO2009068227A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011004002A1 (de) 2011-02-11 2012-08-16 Herrmann Ultraschalltechnik Gmbh & Co. Kg Verfahren zur Herstellung einer Quersiegelnaht sowie Quersiegelvorrichtung

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3996724A (en) * 1975-10-16 1976-12-14 Ex-Cell-O Corporation Rotary carton closing and sealing apparatus
GB2017041A (en) * 1978-03-20 1979-10-03 Jagenberg Werke Ag Apparatus for folding and sealing the top of a carton
US4534818A (en) * 1983-12-22 1985-08-13 Frito-Lay, Inc. Method and apparatus for ultrasonic sealing
WO1995002537A1 (fr) * 1993-07-15 1995-01-26 Tetra Laval Holdings & Finance S.A. Appareil de fermeture etanche d'un conteneur d'emballage
EP1127794A2 (fr) * 2000-02-23 2001-08-29 Shikoku Kakoki Co., Ltd. Dispositif de scellage par ultrasons
EP1174096A2 (fr) * 2000-07-21 2002-01-23 Minitüb Abfüll- und Labortechnik GmbH & Co. KG Dispositif de remplissage pour sperme de verrat et méthode d'utilisation
JP2003212219A (ja) * 2002-01-22 2003-07-30 Ace Medical Inc 超音波シール装置
WO2006041380A1 (fr) * 2004-10-15 2006-04-20 Tetra Laval Holdings & Finance S.A. Agencement contre-machoire
WO2007008131A2 (fr) * 2005-07-08 2007-01-18 Tetra Laval Holdings & Finance S.A. Dispositif et procede pour scellement par joint a chaud transversal
EP1872929A2 (fr) * 2006-06-30 2008-01-02 Hoya Corporation Procédé pour la fabrication d'une lentille en plastique

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3996724A (en) * 1975-10-16 1976-12-14 Ex-Cell-O Corporation Rotary carton closing and sealing apparatus
GB2017041A (en) * 1978-03-20 1979-10-03 Jagenberg Werke Ag Apparatus for folding and sealing the top of a carton
US4534818A (en) * 1983-12-22 1985-08-13 Frito-Lay, Inc. Method and apparatus for ultrasonic sealing
WO1995002537A1 (fr) * 1993-07-15 1995-01-26 Tetra Laval Holdings & Finance S.A. Appareil de fermeture etanche d'un conteneur d'emballage
EP1127794A2 (fr) * 2000-02-23 2001-08-29 Shikoku Kakoki Co., Ltd. Dispositif de scellage par ultrasons
EP1174096A2 (fr) * 2000-07-21 2002-01-23 Minitüb Abfüll- und Labortechnik GmbH & Co. KG Dispositif de remplissage pour sperme de verrat et méthode d'utilisation
JP2003212219A (ja) * 2002-01-22 2003-07-30 Ace Medical Inc 超音波シール装置
WO2006041380A1 (fr) * 2004-10-15 2006-04-20 Tetra Laval Holdings & Finance S.A. Agencement contre-machoire
WO2007008131A2 (fr) * 2005-07-08 2007-01-18 Tetra Laval Holdings & Finance S.A. Dispositif et procede pour scellement par joint a chaud transversal
EP1872929A2 (fr) * 2006-06-30 2008-01-02 Hoya Corporation Procédé pour la fabrication d'une lentille en plastique

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