WO2006133044A1 - Systeme et procede d’ajustage / de rainurage laser d’un recipient en plastique utilisant un guide de faisceau axial susceptible de rotation et de translation - Google Patents

Systeme et procede d’ajustage / de rainurage laser d’un recipient en plastique utilisant un guide de faisceau axial susceptible de rotation et de translation Download PDF

Info

Publication number
WO2006133044A1
WO2006133044A1 PCT/US2006/021654 US2006021654W WO2006133044A1 WO 2006133044 A1 WO2006133044 A1 WO 2006133044A1 US 2006021654 W US2006021654 W US 2006021654W WO 2006133044 A1 WO2006133044 A1 WO 2006133044A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
mirror
guide
electromagnetic radiation
axial
Prior art date
Application number
PCT/US2006/021654
Other languages
English (en)
Inventor
Russell Varone
Original Assignee
Graham Packaging Company, L.P.
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 Graham Packaging Company, L.P. filed Critical Graham Packaging Company, L.P.
Publication of WO2006133044A1 publication Critical patent/WO2006133044A1/fr

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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/72—Deflashing outside the mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/073—Shaping the laser spot
    • B23K26/0734—Shaping the laser spot into an annular shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • B23K26/10—Devices involving relative movement between laser beam and workpiece using a fixed support, i.e. involving moving the laser beam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/351—Working by laser beam, e.g. welding, cutting or boring for trimming or tuning of electrical components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/36—Removing material
    • B23K26/361—Removing material for deburring or mechanical trimming
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/04—Tubular or hollow articles
    • B23K2101/12—Vessels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/30—Organic material
    • B23K2103/42—Plastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/50—Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/0715—Preforms or parisons characterised by their configuration the preform having one end closed
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/04—Extrusion blow-moulding
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/06—Injection blow-moulding

Definitions

  • the present invention relates to a non-contact, object modification system and method, which can be used for the modification of containers. More particularly the present invention relates to using an axial beam guide, a beam directing mirror, and a beam aiming mirror in conjunction with a directed electromagnetic beam to modify the surface of a container, for example, to smooth, shape, or sculpt a selected feature.
  • a variety of different approaches are used to make containers, for example, from polymeric materials. Many of these approaches, for example, extrusion blow molding, injection blow molding, stretch blow molding and roto-molding produce containers which have openings that are rough or only partially finished. Other approaches, such as blown finish, do not produce a container with a suitable opening.
  • these approaches require a separate, second step of trimming or cutting parts of a container to form a finished opening or surface; this second step can be referred to as trimming, de-moiling, or de-flashing.
  • this second trimming step cannot repeatably provide a regular surface that meets the sealing requirements of many applications. For example, smooth surfaces with little or no deformities are required for food containers, personal care product containers, and containers for automotive and industrial chemicals. Furthermore, rough surfaces and sharp edges on containers are undesirable because they present a risk to a user of cuts and abrasions. Food containers designed for direct consumption are required to have trimmed surfaces that pose no risk of injury to the end consumer.
  • a third step can be used to render the surface or edge of a container opening uniform and smooth.
  • a third step can be a burnishing or reaming treatment.
  • burnishing a tool is brought into contact with a surface or edge of a container, and acts to soften or displace material of the surface or edge by the external application of heat or contact friction.
  • the tool can act to smooth an irregular, uneven, or rough surface resulting from the cutting in the second step.
  • reaming a profiled rotary cutter or knife edge tool is used to remove the imperfect surface or edge, and leaves a smooth and well-defined machined edge.
  • burnishing can cause surface defects if too much material is removed; and the cutting approach of reaming can leave chips or strings of material. Therefore, the resultant container may still not meet the requirements of the intended application or applications. Furthermore, the tool used in a burnishing or reaming treatment must be periodically cleaned, realigned, and replaced.
  • Figure 1 is a cut-away perspective view of a non-contact, object modification system.
  • Figure 2 is a side sectional view of a non-contact, object modification system.
  • Non-contact, object modification system can include the following, as shown in the cutaway perspective view of Fig. 1.
  • the non-contact, object modification system can, for example, be used to modify container 2.
  • the system can be used to finish a surface on a container 2, for example, to render a surface smooth; and can be used to trim material from a container 2, for example, to trim excess material remaining from a molding or cutting operation.
  • An external generating source not shown in Fig. 1, can generate an initial directed electromagnetic radiation beam 22.
  • a directed electromagnetic radiation beam energy propagates in substantially the same direction, for example, as in the case of a collimated beam.
  • Directed electromagnetic radiation can be non-coherent, non-monochromatic, and nonpolarized such as radiation obtained from a conventional light source, such as an incandescent source.
  • a directed electromagnetic radiation beam can also have one or more of the qualities of coherence, monochromaticity, or polarization.
  • a directed electromagnetic radiation beam can be coherent, monochromatic, and polarized, such as the light obtained from a laser.
  • a directed electromagnetic radiation beam can include, for example, radiation having a wavelength corresponding to visible light, infrared light, or microwaves.
  • the directed electromagnetic radiation beam can be a laser beam or a maser beam.
  • the initial directed electromagnetic radiation beam 22 can travel into a rotatable and translatable axial beam guide 10, having a beam guide longitudinal axis.
  • the axial beam guide 10 can have the form of a pipe, as shown in Fig. 1 , that is, the axial beam guide 10 can have the form of a hollow object having open ends such that it includes a channel through which a substance or energy, such as light, can pass. In a cross-section taken normal to the beam guide longitudinal axis, the axial beam guide cross-section can be circular, square, triangular, have any polygonal shape, or have any shape.
  • the pipe can have the form of a hollow cylinder as shown in Fig. 1.
  • the axial beam guide 10 can have a form different than a pipe; for example, the axial beam guide 10 can have the form of a truss, that is, an assembly of members forming a framework.
  • the initial directed electromagnetic radiation beam can further travel to impinge on a beam directing mirror 12.
  • the beam directing mirror 12 can be connected to the axial beam guide 10. .
  • the beam directing mirror 12 can be located within the axial beam guide 10, as shown in Fig. 1, or the beam directing mirror 12 can be located substantially outside of the axial beam guide 10.
  • the beam directing mirror 12 can be a part of substantial thickness and bulk having a polished reflecting surface, as shown in Fig. 1.
  • a beam directing mirror 12 can be a thin part, which can be mounted on a part of substantial thickness.
  • the beam directing mirror 12 can reflect the initial directed electromagnetic radiation beam 22 in a direction that is at least partially radial to the beam guide longitudinal axis.
  • the beam directing mirror 12 can reflect the initial directed electromagnetic radiation beam 22 in a direction that is perpendicular to the beam guide longitudinal axis, as shown in Fig. 1.
  • the beam directing mirror 12 can have an angle with respect to the beam guide longitudinal axis such that the reflected beam is at an angle of less than 90 degrees with respect to the initial directed electromagnetic radiation beam 22.
  • the axial beam guide 10 can be inserted through a neck of a container 2, so that the reflected beam travels in a direction that is partially opposite to the direction of travel of the initial directed electromagnetic radiation beam 22. That is, if the initial directed electromagnetic radiation beam 22 travels downward through the axial beam guide 10 to impinge on the beam directing mirror 12, the reflected beam can travel upwards and at least partially radial to the beam guide longitudinal axis.
  • the reflected beam can impinge on a surface of the container 2, for example, on an inner surface of the container 2.
  • the axial beam guide 10 can be rotated in a clockwise or a counterclockwise direction, so that the beam reflected by the beam directing mirror traces a container predetermined path on the surface of the container 2.
  • the non-contact, object modification system can therefore be used, for example, to trim a narrow neck region from a container to yield a container having the form of a cylinder with an open top, such as the container 2 shown in Fig. 1.
  • the beam directing mirror 12 can have an angle with respect to the beam guide longitudinal axis such that the reflected beam is at an angle of greater than 90 degrees with respect to the initial directed electromagnetic radiation beam 22.
  • the axial beam guide 10 can be outside of a container 2, so that the reflected beam travels in a direction that is towards the container 2. That is, if the initial directed electromagnetic radiation beam 22 travels downward through the axial beam guide 10 to impinge on the beam directing mirror 12, the reflected beam can travel downwards and at least partially radial to the beam guide longitudinal axis.
  • the reflected beam can impinge on a surface of the container 2, for example, on an outer surface of the container 2.
  • the axial beam guide 10 can be rotated in a clockwise or a counterclockwise direction, so that the beam reflected by the beam directing mirror traces a container predetermined path on the surface of the container 2.
  • the non-contact, object modification system can therefore be used, for example, to trim a narrow neck region from a container to yield a container having the form of a cylinder with an open top, such as the container 2 shown in Fig. 1.
  • the axial beam guide 10 can include a beam aperture 16 proximate to the beam directing mirror 12, for example, when the beam directing mirror 12 is located within the axial beam guide 10.
  • a beam aperture 16 is shown in the axial beam guide 10 in Fig. 1. Proximate can mean that the beam aperture 16 is located such that the reflected beam traveling from the beam directing mirror 12 can pass through the beam aperture 16.
  • the reflected beam traveling from the beam directing mirror is reflected from the beam directing mirror
  • the beam aiming mirror 14 can have an orientation to aim the beam at a surface of a container 2; for example, the directed electromagnetic radiation beam 22 reflected from the beam aiming mirror 14 can have a different direction than the beam reflected from the beam directing mirror 12.
  • the beam aiming mirror 14 can be rotationally symmetric, for example, be rotationally symmetric about the beam guide longitudinal axis.
  • the beam aiming mirror 14 can be conical in form, as shown in Fig. 1.
  • the beam aiming mirror can include a plurality of conical surfaces.
  • the beam aiming mirror 14 can be parabolic in form, for example, be a portion of a paraboloid, or have any other form.
  • the beam aiming mirror 14 can be faceted.
  • the beam aiming mirror 14 can be a part of substantial thickness and bulk having a polished reflecting surface, as shown in Fig. 1.
  • a beam aiming mirror 14 can be a thin part, which can be mounted on a part of substantial thickness.
  • the beam directing mirror 12 can have a planar form in order to, for example, reflect the initial directed electromagnetic radiation beam 22 while maintaining the collimated nature of the beam.
  • the beam directing mirror 12 can have a convex cylindrical form and be oriented so that, for example, the reflected beam traveling at least partially radially to the beam guide longitudinal axis is spread out into the form of a sector of a circle that lies in a plane substantially normal to the beam guide longitudinal axis, as shown in Fig. 1.
  • the beam directing mirror 12 can have a convex cylindrical form oriented such that the reflected beam is spread out into the form of a sector of a circle that lies in a plane substantially parallel to the beam guide longitudinal axis, or that lies in a plane with a different orientation.
  • the beam directing mirror 12 can have a concave form, for example, for focusing the reflected beam, or the beam directing mirror 12 can have any other form.
  • the surface can be an interior surface 4, exterior surface 6, or edge surface 8 of a container 2.
  • the container 2 can have any form, for example, the container 2 can have the form of a bottle with a neck, or can have the form of a hollow cylinder, as shown in Fig. 1.
  • the container 2 can include a polymeric material, or can be formed of a material other than a polymeric material.
  • the system can include a holding fixture (not shown in Fig. 1), which can hold the container 2 in a predetermined spatial relation with respect to, for example, the beam aiming ' mirror 14.
  • the holding fixture can include, for example, a pocket and/or fingers for holding the container 2.
  • the system can include a rotating unit (not shown in Fig. 1) coupled to the axial beam guide 10, for rotating the axial beam guide 10 about the beam guide longitudinal axis, as illustrated by the curved arrow 32 in Fig. 1.
  • the axial beam guide 10 can be rotated in a clockwise or a counterclockwise direction.
  • the rotating unit can have the form of a motor, which is coupled to the axial beam guide 10 by a belt or gear; alternatively, the rotating unit can have the form of a motor magnetically coupled to the axial beam guide 10, or can have any other form.
  • the system can include a beam guide translating unit (not shown in Fig.
  • the beam guide translating unit can have the form of a motor coupled to the axial beam guide 10 by gears; alternatively, a beam guide translating unit can have the form of a motor magnetically coupled to the axial beam guide 10, or have any other form.
  • the rotating unit and the beam guide translating unit can be integrated into a single device. Motors used in the rotating unit or in the beam guide translating unit can be electrically or pneumatically actuated, or can be otherwise actuated.
  • the system can include an aiming mirror translating unit (not shown in Fig. 1) coupled to the beam aiming mirror 14, for example, for translating the beam aiming mirror 14 along the beam guide longitudinal axis.
  • the beam aiming mirror 14 can be translated away from the container 2 or toward the container 2.
  • the aiming mirror translating unit can have the form of a motor coupled to the beam aiming mirror 14 by gears; alternatively, a beam guide translating unit can have the form of a motor magnetically coupled to the beam aiming mirror 14, or have any other form.
  • Motors used in the aiming mirror translating unit can be electrically or pneumatically actuated, or can be otherwise actuated.
  • the system uses a directed electromagnetic radiation beam to modify a container
  • Figure 2 shows a cross-sectional view of the embodiment of a non-contact, object modification system shown in Fig. 1.
  • the container 2 is not shown in Fig. 2.
  • a method for modifying an object includes the following: generating an initial directed electromagnetic radiation beam 22 with an external generating source; orienting the external generating source to project the initial directed electromagnetic radiation beam 22 through a hollow region of an axial beam, guide 10 onto a beam directing mirror 12; and rotating the axial beam guide 10 with respect to an environment at a predetermined angular velocity.
  • the method can further include placing a container 2 in spatial relation to the beam directing mirror 12, so that the beam reflected by the beam directing mirror 12 impinges on a surface of the container 2 and traces a container predetermined path on the surface of the container 2.
  • a method can include varying the angle of the beam directing mirror 12 with respect to the beam guide longitudinal axis of the axial beam guide 10 while the reflected directed electromagnetic radiation beam impinges on the surface of the container 2.
  • Varying the angle of the beam directing mirror 12 can vary the angle of the reflected beam with respect to the initial directed electromagnetic radiation beam 22.
  • Varying the angle of the beam directing mirror 12 can vary the angle at which the reflected directed electromagnetic radiation beam impinges on a surface of the container 2, or the position at which the reflected directed electromagnetic radiation beam impinges on a surface of the container 2.
  • the angle of the beam directing mirror 12 can be varied by a mirror angle unit; for example, the mirror angle unit can have the form of a motor coupled to the beam directing mirror 12.
  • a motor can be coupled to the beam directing mirror 12 by a belt or gear.
  • the mirror angle unit can have the form of a motor magnetically coupled to the beam directing mirror 12, or can have any other form.
  • a method can include orienting the beam directing mirror 12 to reflect the initial directed electromagnetic radiation beam 22 onto a beam aiming mirror 14.
  • the method can further include rotating the axial beam guide 10 with respect to an environment at a pre- determined angular velocity, so that the reflected directed electromagnetic radiation beam traces a mirror predetermined path on the surface of the beam aiming mirror 14.
  • the method can further include placing a container 2 in spatial relation to the beam aiming mirror 14, so that the directed electromagnetic radiation beam re-reflected by the beam aiming mirror 14 impinges on a surface of the container 2 and traces a container predetermined path on the surface of the container 2.
  • the container 2 can be placed such that the beam guide longitudinal axis passes through an opening of the container 2; the container 2 can be placed such that the beam guide longitudinal axis passes through the center of an opening of the container 2.
  • the method for example, through use of the above-described system, can be applied to modify a feature or features on a surface of a container 2 to have a fine, smooth finish and achieve a high throughput rate of containers 2 modified.
  • the directed electromagnetic radiation beam can trim material from the container, can melt, deform, or ablate the material of the surface to shape the surface, can provide the surface with a fine, smooth finish, or can otherwise modify the surface of the container 2.
  • the container 2 can be held stationary with respect to the environment.
  • the beam aiming mirror 14 can be held stationary with respect to the container 2.
  • the method can include loading the container 2 into a holding fixture which holds the container 2 in a predetermined spatial relation to the beam aiming mirror 14.
  • the predetermined spatial relation of the container 2 to the beam aiming mirror 14 can vary in a predetermined manner over time.
  • the holding fixture may rotate so as to effect rotation of the container 2 with respect to the beam aiming mirror 14 over time.
  • the axis of the initial directed electromagnetic radiation beam 22 issuing from the external generating source can be collinear with the beam guide longitudinal axis of the axial beam guide 10.
  • the axis of the initial directed electromagnetic radiation beam 22 issuing from the external generating source can be collinear with the container longitudinal axis of the container 2.
  • the directed electromagnetic radiation beam reflected from the beam directing mirror 12 can travel substantially perpendicularly to the beam guide longitudinal axis.
  • the directed electromagnetic radiation beam re-reflected from the beam aiming mirror 14 can travel substantially parallel to a container longitudinal axis of the container 2, as shown in Fig. 1.
  • the directed electromagnetic radiation beam re-reflected from the beam aiming mirror 14 can travel at an angle with respect to a container longitudinal axis of the container 2.
  • the directed electromagnetic radiation beam can trim material from the container, can melt, deform, or ablate the material of the surface to shape the surface, can provide the surface with a fine, smooth finish, or can otherwise modify the surface of the container 2.
  • the container predetermined path on the surface of the container 2 can be closed and circular.
  • the container predetermined path on the surface of the container 2 can be closed, but be other than circular; for example, the container predetermined path can be elliptical or substantially polygonal in form, or have any other form.
  • the container predetermined path on the surface of the container 2 can be non-closed, in the sense that the directed electromagnetic radiation beam impinging on the surface of the container 2 does not retrace its path; that is, the path of the directed electromagnetic radiation beam impinging on the surface of the container 2 can be non-periodic in nature.
  • the container predetermined path on the container 2 can be such that the directed electromagnetic radiation beam does not pass over a given portion of the surface of the container more than once, or can be such that the directed electromagnetic radiation beam passes over a given portion of the surface of the container 2 multiple times.
  • the method can include varying the angular velocity of the axial beam guide 10 while the directed electromagnetic radiation beam, for example, the re-reflected beam, impinges on the surface of the container 2.
  • Such variation in the angular velocity could be useful, for example, if one section of the path traced out by the directed electromagnetic radiation beam on the surface of the container 2 is rougher or more jagged than other sections of the path, and therefore requires a greater input of energy to smooth the surface of the rougher or more jagged section.
  • the method can include translating the axial beam guide 10 while the directed electromagnetic radiation beam, for example, the re-reflected beam, impinges on the surface of the container 2.
  • the axial beam guide 10 can be translated while the axial beam guide 10 rotates.
  • translating the axial beam guide 10 away from the container 2 will result in the beam reflected from the beam directing mirror 12 impacting the beam aiming mirror 14 at a higher position.
  • the directed electromagnetic radiation beam re-reflected from this higher position on the beam aiming mirror 14 will then travel toward the container 2 at a lesser radius relative to the beam guide longitudinal axis and thus, for example, trace out a container predetermined path on the surface of the container 2 having smaller radius.
  • a first circular container predetermined path can be traced on the edge surface 8 with the axial beam guide 10 at a first position.
  • the axial beam guide 10 can then be translated to a second position such that a second circular container predetermined path of a different radius can be traced on the edge surface 8 of the container 2, so that with the first and second circular container predetermined paths, the entire edge surface 8 of the container 2 is exposed to the directed electromagnetic radiation beam.
  • the procedure of translating the axial beam guide 10 and tracing a container predetermined path with the directed electromagnetic radiation beam can be repeated as often as necessary to modify an entire region selected for modification of a surface of the container 2.
  • Translating the axial beam guide 10 can include moving the axial beam guide 10 in a single direction at a constant velocity, moving the axial beam guide 10 in a single direction with a varying velocity, and/or moving the axial beam guide 10 successively in more than one direction, for example, moving the axial beam guide 10 first away from and then toward the container 2.
  • the method can include translating the axial beam guide 10 while the axial beam guide 10 rotates so that the directed electromagnetic radiation beam traces a container predetermined path which has a form other than circular.
  • the method can include translating the axial beam guide 10 while varying the angular velocity of the axial beam guide 10.
  • the method can include translating the beam aiming mirror 14 while the re- reflected directed electromagnetic radiation beam impinges on the surface of the container 2.
  • the beam aiming minor 14 can be translated while the axial beam guide 10 rotates. For example, in the embodiment shown in Fig. 1, translating the beam aiming mirror 14 away from the container 2 will result in the beam reflected from the beam directing mirror 12 impacting the beam aiming mirror 14 at a lower position. The directed electromagnetic radiation beam re- reflected from this lower position on the beam aiming mirror 14 will then travel toward the container 2 at a greater radius relative to the beam guide longitudinal axis, and thus, for example, trace out a container predetermined path on the surface of the container 2 having greater radius.
  • Translating the beam aiming mirror 14 can include moving the beam aiming mirror 14 in a single direction at a constant velocity, moving the beam aiming mirror 14 in a single direction with a varying velocity, and/or moving the beam aiming mirror 14 successively in more than one direction, for example, moving the beam aiming mirror 14 first away from and then toward the container 2.
  • the method can include translating the beam aiming mirror 14 while the axial beam guide 10 rotates so that the re-reflected directed electromagnetic radiation beam traces a container predetermined path which has a form other than circular.
  • the method can include translating the beam aiming mirror 14 while varying the angular velocity of the axial beam guide 10.
  • the method for example, through use of a non-contact, object modification system, can be applied to modify features on a surface of a container 2 having a complex form, for example, the edge of an opening having a complex shape.
  • the method for example, through use of a non-contact, object modification system, can be applied to perform a complex modification of a feature or features, for example, by modifying a region on a surface of a container with a complex shape.
  • the system can be rapidly adjusted to perform different modifications of the surface of a container 2.
  • the method can include varying the power of the directed electromagnetic radiation beam while the directed electromagnetic radiation beam, for example, the re-reflected beam, impinges on the surface of the container 2.
  • the surface may be more ragged or rough along one section of the container predetermined path than on another section of the container predetermined path.
  • the power of the directed electromagnetic radiation beam can be temporarily increased so as to achieve smoothing of the ragged or rough section.
  • the power of the directed electromagnetic radiation beam could be decreased so as not to unduly distort this less ragged segment of the container surface, to conserve energy, and/or to prolong the life of elements in the external generating source.
  • the power of the directed electromagnetic radiation beam impinging on a surface of the container 2 can be varied by, for example, an electronic or mechanical device.
  • the power supplied to the external generating source can be varied.
  • an electro-optical element or at least one polarizing element can be imposed in the path of the directed electromagnetic radiation beam between the external generating source and the surface of the container 2, and an electro-optical device can be modulated, or a polarizing element can be rotated.
  • the method can include repeatedly turning the directed electromagnetic radiation beam, for example, a re-reflected beam, on to impinge on the surface of the container 2 for a predetermined on-interval and off to not impinge on the surface of the container 2 for a predetermined off-interval.
  • the directed electromagnetic radiation beam can be repeatedly turned on and off while the axial beam guide 10 rotates. This approach can also be useful, for example, to make perforations in a container 2, e.g., so that a region of the container 2 can be easily separated from another region of the container 2.
  • Such an approach can be useful, for example, when only a portion of the surface of the container 2 along a container predetermined path is rough so as to require smoothing, and the remainder of the surface along the container predetermined path is smooth.
  • This approach can also be useful, for example, if it is desired to only smooth a portion of the surface of the container 2 and leave the remainder of the surface rough. For example, it may be desired to leave a portion of the surface rough to facilitate welding of this rough portion to another part.
  • the directed electromagnetic radiation beam can be turned on for a predetermined on-interval and off for a predetermined off-interval by, for example, turning the external generating source on for the predetermined on-interval and off for the predetermined off-interval.
  • the directed electromagnetic radiation beam can be turned on for a predetermined on-interval and off for a predetermined off-interval by alternately allowing the beam to pass to impinge on the surface of the container 2 and blocking the beam before it impinges on the surface of the container 2 by, for example, an electronic or mechanical device.
  • an electro-optical element or a Kerr cell can be imposed in the path of the directed electromagnetic radiation beam between the external generating source and the surface of the container 2, and the electro-optical element or Kerr cell can be modulated to alternately allow the beam to pass and to block the beam.
  • a mechanical shutter such as a chopper wheel with a selected blade configuration and angular velocity, can be imposed in the path of the directed electromagnetic radiation beam between the external generating source and the surface of the container 2, and can be controlled to alternately allow the beam to pass and to block the beam.
  • the method can include varying the area of the directed electromagnetic radiation beam at the point where the directed electromagnetic radiation beam, for example, a re-reflected beam, impinges on the surface of the container 2, while the directed electromagnetic radiation beam, for example, a re-reflected beam, impinges on the surface of the container 2.
  • the area of the directed electromagnetic radiation beam can be varied while the axial beam guide 10 rotates. Varying the area of the directed electromagnetic radiation beam can be useful, for example, if a portion of the surface of the container 2 along one section of the container predetermined path is more sensitive to the effect of the directed electromagnetic radiation beam than portions of the surface along other sections of the container predetermined path.
  • the area of the directed electromagnetic radiation beam can be expanded, in order to reduce the power density, as the beam passes over the sensitive portion of the surface.
  • This approach of varying the area of the beam can be useful if, for example, the width of the surface of the container 2 designated for modification varies along the container predetermined path.
  • the width can so vary if, for example, an edge surface 8 of a container is to be modified, and the thickness of a wall of the container 2, which the edge surface 8 bounds, varies.
  • the area of the directed electromagnetic radiation beam can be increased in the sections of the container predetermined path where a wider region of the surface is designated to be modified, and decreased in the sections of the container predetermined path where a narrower region of the surface is designated to be modified.
  • the area of the directed electromagnetic radiation beam 22 can be varied, for example, by adjusting the position or positions of one or more lenses placed within the path of the directed electromagnetic radiation beam between the external generating source and the surface of the container 2 (a lens or lenses is not shown in Fig. 1 or 2).

Abstract

Système de modification d’objet sans contact et procédé de modification d’un récipient (2). Le système comporte un guide de faisceau axial susceptible de rotation et de translation (10) présentant un axe longitudinal et auquel est couplé un miroir d’orientation de faisceau (12). Le miroir d’orientation de faisceau sert à réfléchir un faisceau de rayonnement électromagnétique dans une direction au moins partiellement radiale à l’axe longitudinal du guide de faisceau.
PCT/US2006/021654 2005-06-06 2006-06-05 Systeme et procede d’ajustage / de rainurage laser d’un recipient en plastique utilisant un guide de faisceau axial susceptible de rotation et de translation WO2006133044A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US68731905P 2005-06-06 2005-06-06
US60/687,319 2005-06-06

Publications (1)

Publication Number Publication Date
WO2006133044A1 true WO2006133044A1 (fr) 2006-12-14

Family

ID=36956158

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/021654 WO2006133044A1 (fr) 2005-06-06 2006-06-05 Systeme et procede d’ajustage / de rainurage laser d’un recipient en plastique utilisant un guide de faisceau axial susceptible de rotation et de translation

Country Status (1)

Country Link
WO (1) WO2006133044A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112789143A (zh) * 2018-10-04 2021-05-11 三菱瓦斯化学株式会社 多层注射器筒的制造方法
WO2023118058A1 (fr) * 2021-12-21 2023-06-29 Alpla Werke Alwin Lehner Gmbh & Co. Kg Dispositif de découpe et procédé de fabrication d'un récipient

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3960624A (en) * 1974-11-13 1976-06-01 Continental Can Company, Inc. Method of fabricating tubular bodies
US4465919A (en) * 1980-03-24 1984-08-14 Roeder Walter Cutting apparatus for three-dimensional mouldings
EP0472850A2 (fr) * 1990-08-24 1992-03-04 Fmc Corporation Appareil de soudage au laser avec fenêtre regardant vers l'espace
EP0876870A1 (fr) * 1997-04-21 1998-11-11 Automobiles Peugeot Appareil et procédé de traitement par laser de la paroi de cylindre d'un moteur à combustion interne
NL1022877C2 (nl) * 2003-03-10 2004-09-13 Orbid Ltd Houder voorzien van een identificatiecode.
EP1477264A1 (fr) * 2003-05-16 2004-11-17 Lasag Ag Dispositif pour générer un faisceau laser tournant

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3960624A (en) * 1974-11-13 1976-06-01 Continental Can Company, Inc. Method of fabricating tubular bodies
US4465919A (en) * 1980-03-24 1984-08-14 Roeder Walter Cutting apparatus for three-dimensional mouldings
EP0472850A2 (fr) * 1990-08-24 1992-03-04 Fmc Corporation Appareil de soudage au laser avec fenêtre regardant vers l'espace
EP0876870A1 (fr) * 1997-04-21 1998-11-11 Automobiles Peugeot Appareil et procédé de traitement par laser de la paroi de cylindre d'un moteur à combustion interne
NL1022877C2 (nl) * 2003-03-10 2004-09-13 Orbid Ltd Houder voorzien van een identificatiecode.
EP1477264A1 (fr) * 2003-05-16 2004-11-17 Lasag Ag Dispositif pour générer un faisceau laser tournant
WO2004101213A1 (fr) * 2003-05-16 2004-11-25 Lasag Ag Appareil pour la generation d'un faisceau laser tournant comportant un objectif basculant

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 200502, Derwent World Patents Index; AN 2005-019229, XP002399507 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112789143A (zh) * 2018-10-04 2021-05-11 三菱瓦斯化学株式会社 多层注射器筒的制造方法
EP3862153A4 (fr) * 2018-10-04 2021-10-27 Mitsubishi Gas Chemical Company, Inc. Procédé de fabrication d'un corps de seringue multicouche
TWI808245B (zh) * 2018-10-04 2023-07-11 日商三菱瓦斯化學股份有限公司 多層注射筒的製造方法
WO2023118058A1 (fr) * 2021-12-21 2023-06-29 Alpla Werke Alwin Lehner Gmbh & Co. Kg Dispositif de découpe et procédé de fabrication d'un récipient

Similar Documents

Publication Publication Date Title
ES2303215T3 (es) Procedimiento y dispositivo para cortar articulos por laser, en particular unos productos sanitarios y sus componentes, con un punto de laser de diametro comprendido entre 0,1 y 0,3 mm.
CA1245296A (fr) Systeme optique generateur de faisceaux laser en anneau
CA1245299A (fr) Methode et dispositif de profilage des rives de verres d'optique
US4099830A (en) Optical systems including polygonal mirrors rotatable about two axes
US4731254A (en) Method of, and apparatus for, repairing mechanical and/or chemical damage to the surface of bottles destined for re-use
US20080035616A1 (en) Laser-marking system
US7688492B2 (en) Laser processing apparatus
US5587094A (en) Laser marking apparatus
HU222139B1 (hu) Eljárás üvegáru lepattintására
Acherjee State-of-art review of laser irradiation strategies applied to laser transmission welding of polymers
WO2006133044A1 (fr) Systeme et procede d’ajustage / de rainurage laser d’un recipient en plastique utilisant un guide de faisceau axial susceptible de rotation et de translation
ES2762744T3 (es) Método para desafilar los objetos de vidrio
KR20050017105A (ko) 레이저를 이용한 물체 가공 시스템 및 방법
US20100314364A1 (en) Optical scanner and its applications
US9878400B1 (en) Device for controlling the direction of a laser beam
KR20070042293A (ko) 레이저 패턴 가공 장치
SU1798090A1 (en) Method of and device for laser treatment of dielectric materials
TWI688445B (zh) 對薄膜進行雷射加工之方法
KR101946934B1 (ko) 레이저 가공용 마스크
CN112689785A (zh) 激光扫描装置及激光加工装置
EP1648649B1 (fr) Procede et dispositif de coupe et/ou de soudage et/ou de marquage de corps avec un faisceau laser focalise par un miroir cylindrique parabolique
CN116117304B (zh) 一种整形光束的旋转跟随光学装置及激光加工系统
US3344692A (en) Method and apparatus for producing aspheric contact lenses
KR20040046421A (ko) 레이저를 이용한 취성재료 절단장치 및 방법
KR0137215B1 (ko) 레이저 가공장치 및 방법

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 06772089

Country of ref document: EP

Kind code of ref document: A1