Method and installation for the production of containers
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B29C-049/68
B29C-035/08
출원번호
US-0432824
(2009-04-30)
등록번호
US-8303290
(2012-11-06)
우선권정보
FR-04 12372 (2004-11-22)
발명자
/ 주소
Feuilloley, Guy
Desoutter, Luc
출원인 / 주소
Sidel Participations
대리인 / 주소
Sughrue Mion, PLLC
인용정보
피인용 횟수 :
3인용 특허 :
163
초록▼
A method of producing a container from a thermoplastic blank, including a step in which the blank is heated using at least one beam of coherent electromagnetic radiation, and a step in which the container is formed from the blank thus heated. The invention also relates to an installation which is us
A method of producing a container from a thermoplastic blank, including a step in which the blank is heated using at least one beam of coherent electromagnetic radiation, and a step in which the container is formed from the blank thus heated. The invention also relates to an installation which is used to produce containers and which includes a unit for heating the blanks in order to form containers from the blanks thus heated. The inventive installation defines a path along which the blanks travel inside the heating unit. In addition, the heating unit includes at least one coherent electromagnetic radiation source which is directed toward a zone that is located on the aforementioned path.
대표청구항▼
1. An installation for producing containers from thermoplastic parisons, each having at least a neck and a body, the installation comprising: a heating unit for heating the parisons in a neck-up orientation by radiating a perimeter of the body of the parison to form the containers from the parisons
1. An installation for producing containers from thermoplastic parisons, each having at least a neck and a body, the installation comprising: a heating unit for heating the parisons in a neck-up orientation by radiating a perimeter of the body of the parison to form the containers from the parisons thus heated;a transport path in the installation which the parisons are intended to follow within the heating unit;at least one source of coherent electromagnetic radiation as part of said heating unit directed toward a region situated on the path of the parisons; andan opaque screen positioned facing the source of coherent electromagnetic radiation,wherein the path of the parisons is substantially linear,said plurality of sources of radiation is directed transversely with respect to said path,the heating unit comprises: several superposed rows of adjacent sources arranged parallel to the path,a chamber comprising a first wall and a second wall facing one another and substantially parallel to the path of the parisons, these walls being positioned one on each side of this path and together delimiting an internal volume, the first wall being equipped with a plurality of superposed parallel slits facing each of which there is positioned, on the opposite side to the internal volume, a row of radiation sources, anda ventilation system able to generate an air flow passing through a region situated vertically in line with said chamber. 2. The installation as claimed in claim 1, wherein the second wall at least, on the same side as the internal volume, has a reflective internal surface. 3. The installation as claimed in claim 1, wherein the heating unit comprises at least two successive heating units. 4. An installation for producing containers from thermoplastic parisons, each having at least a neck and a body, the installation comprising: a heating unit for heating the parisons in a neck-up orientation by radiating a perimeter of the body of the parison to form the containers from the parisons thus heated;a transport path in the installation which the parisons are intended to follow within the heating unit;at least one source of coherent electromagnetic radiation as part of said heating unit directed toward a region situated on the path of the parisons,wherein the path of the parisons is substantially circular,the heating unit comprises a plurality of successive chambers positioned along the path, each chamber having two cylindrical walls facing each other and positioned one on each side of the path and together defined an internal cavity, each wall having several adjacent reflective facets facing toward the cavity, the source of electromagnetic radiation being directed toward one of the facets and the facets are not exactly parallel with their pair but together define an angle of a few degrees, andan opaque screen is disposed adjacent to one of the facets. 5. The installation as claimed in claim 1, wherein the parisons have an axis of revolution, and the heating unit comprises means for rotating the parisons about their axis. 6. An installation for producing containers from thermoplastic parisons, each having at least a neck and a body, the installation comprising: a heating unit for heating the parisons in a neck-up orientation by radiating a perimeter of the body of the parison to form the containers from the parisons thus heated;a transport path in the installation which the parisons are intended to follow within the heating unit; andat least one source of coherent electromagnetic radiation as part of said heating unit which is directed toward a region situated on the path of the parisons and comprises a laser diode which is designed to emit a planar laser beam. 7. The installation as claimed in claim 6, in which the heating unit comprises at least one block or one array of juxtaposed laser diodes. 8. An installation for producing containers from thermoplastic parisons, each having at least a neck and a body, the installation comprising: a heating unit for heating the parisons to form the containers from the parisons thus heated;a transport path in the installation which the parisons are intended to follow within the heating unit; andat least one source of coherent electromagnetic radiation as part of said heating unit directed toward a region situated on the path of the parisons,wherein the path of the parisons is substantially linear, andthe source of coherent electromagnetic radiation is directed parallel to the path. 9. An installation for producing containers from thermoplastic parisons, each having at least a neck and a body, the installation comprising: a heating unit for heating the parisons to form the containers from the parisons thus heated;a transport path in the installation which the parisons are intended to follow within the heating unit;at least one source of coherent electromagnetic radiation as part of said heating unit directed toward a region situated on the path of the parisons; andan opaque screen which faces the source of coherent electromagnetic radiation,wherein the path of the parisons is substantially linear, and the heating unit comprises: superposed rows of radiation sources arranged parallel to the path with the radiation directed transversely with respect to the path,a chamber comprising a first wall and a second wall facing one another and substantially parallel to the path of the parisons, the first and second walls being positioned one on each side of the path and together delimiting an internal volume, the first wall being equipped with a plurality of superposed parallel slits facing the rows of radiation sources positioned on a side of the first wall opposite to the internal volume, the second wall at least on the same side as the internal volume having a reflective internal surface, anda ventilation system which generates an air flow passing through a region situated vertically in line with the chamber. 10. An installation for producing containers from thermoplastic parisons, each having at least a neck and a body, the installation comprising: a heating unit for heating the parisons to form the containers from the parisons thus heated;a transport path in the installation which the parisons are intended to follow within the heating unit; andat least one source of coherent electromagnetic radiation as part of said heating unit directed toward a region situated on the path of the parisons,wherein the path of the parisons is substantially circular,the heating unit comprises a plurality of successive chambers positioned along the path, each chamber having two cylindrical walls facing each other and positioned one on each side of the path and together defining an internal cavity, each wall having several adjacent reflective facets facing toward the cavity, the source of electromagnetic radiation being directed toward one of the facets, each two adjacent facets define an angle of a few degrees with one another, andan opaque screen is adjacent to one of the facets. 11. The installation as claimed in claim 1, wherein the first wall and the second wall define the transport path which the parisons follow within the heating unit so that the bodies of the parisons are disposed substantially within the first and second walls and the necks of the parisons protrude above the first and second walls during heating of the parisons. 12. The installation as claimed in claim 11, wherein the second wall comprises coherent electromagnetic radiation sources, and the coherent electromagnetic radiation sources cooperate to direct the coherent electromagnetic radiation across the transport path and across the body of each parison which follows the transport path, while excluding the neck. 13. The installation as claimed in claim 11, wherein the coherent electromagnetic radiation sources face the parallel slits of the first wall, andthe slits and the coherent electromagnetic radiation sources cooperate to direct the coherent electromagnetic radiation across the transport path and across substantially an entire length of the body of each parison which follows the transport path. 14. The installation as claimed in claim 1, wherein the at least one source of coherent electromagnetic radiation emits radiant energy within a wavelength range between 1000 and 1600 nm. 15. The installation as claimed in claim 1, wherein the at least one source of coherent electromagnetic radiation comprises at least one block or one array of juxtaposed laser diodes that emit radiant energy within a wavelength range between 1000 and 1600 nm.
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