JP6329094B2 - Decorative parts manufacturing method, laser decoration device - Google Patents

Description

  The present invention relates to a method for manufacturing a decorative part that directly decorates the surface of a resin base material that has a three-dimensional shape and has an opening, and a laser decoration device used for manufacturing the decorative part.

  Conventionally, for interior parts of automobiles, decorative parts that add decoration to the surface of resin base materials that are injection-molded products in order to improve design and quality (for example, console boxes, instrument panels, armrests, etc.) Have been put to practical use. In addition, there are various methods for decorating the surface of the resin base material. As an example, a method of applying decoration using a laser (laser decoration method) has been proposed in recent years.

  In the case of such a laser decoration method, first, injection molding is performed using a molding die to produce a resin base material having a predetermined shape. Next, a coating film is formed on the substrate surface of the resin substrate, and laser irradiation is further performed on the coating film to form fine laser processing grooves. As a result, a pattern is drawn on the surface of the resin base material and decorated (see, for example, Patent Document 1).

JP 2012-176744 A JP 2005-324516 A

  By the way, when a resin base material having an opening is produced by injection molding, a weld line is generated around the opening. Therefore, even if a laser-processed groove is directly formed on the surface of the base material for decoration, the weld line is conspicuous, and a decorative part with excellent design quality cannot be obtained. For these reasons, conventionally, laser processing grooves are not directly formed and decorated on the substrate surface, but laser processing grooves are indirectly formed after coating the weld line with a coating film. It is common to decorate. However, in order to achieve cost reduction and improved production efficiency of decorative parts, it is considered desirable to employ a laser decoration method that directly decorates the surface of the substrate.

  Therefore, if the weldless molding method using the disk gate method is adopted, the weld line can be eliminated from the resin base material, so that it is possible to decorate by forming a laser processing groove directly on the surface of the base material. . However, according to this method, the disk gate remains at the position where the opening is to be formed. Therefore, it is necessary to add a gate cut mechanism for punching and removing it for each molding die (see, for example, Patent Document 2). Therefore, there is a problem that the structure of the molding die is complicated and the manufacturing cost is increased, resulting in high cost of the decorative part.

  The present invention has been made in view of the above problems, and a first object of the present invention is to provide a decorative part with excellent design quality at low cost and efficiency when a resin base material having an opening is used. It is in providing the manufacturing method of the decorative component which can be obtained well. Moreover, the 2nd objective of this invention is providing the laser decoration apparatus suitable for using for manufacture of the decoration components by the said manufacturing method.

  In order to solve the above-mentioned problem, the invention described in means 1 is a method for manufacturing a decorative part that directly decorates a base material surface of a resin base material that has a three-dimensional shape and has an opening, and includes a disk gate method. A base material preparing step of preparing the resin base material, which is prepared by weldless molding according to the above, and having a disk gate including a disk portion and a gate portion surrounding the disk portion and connected to the base material portion; A laser decoration process for drawing and decorating a pattern on the substrate surface by laser irradiation, and cutting the gate portion by laser irradiation to remove the disk gate from the resin substrate and to form the opening. A gist of the method for manufacturing a decorative part, including a laser cutting step to be formed.

  Therefore, according to the manufacturing method of the invention described in means 1, in the case of the resin base material produced by the well-dress molding by the disk gate method, no weld line is generated in the resin base material. For this reason, a laser processing groove | channel can be directly formed and decorated in the base-material surface, and the decorative component excellent in the quality in the design surface can be obtained. In addition, since it is not necessary to form a coating film for covering the weld line, it is possible to reduce the cost of decorative parts and improve production efficiency. Moreover, since the disk gate is removed from the resin base material and the opening is formed by performing the laser cutting process, it is not necessary to add a gate cut mechanism to the molding die. Therefore, it is possible to avoid the complicated structure of the molding die and the high manufacturing cost.

  The gist of the invention described in means 2 is that, in the means 1, the gate part is formed thinner than the disk part.

  Therefore, according to the invention described in the means 2, the gate portion formed thinner than the disk portion can be cut relatively easily by the laser cutting step.

  The gist of the invention described in means 3 is that, in means 1 or 2, the laser cutting step is performed after the laser decoration step.

  Therefore, according to the invention described in the means 3, when the laser cutting process is performed after the laser decoration process, there is an advantage that it is possible to avoid a situation in which the disk gate that has been cut and removed falls and becomes a foreign object. .

  The gist of the invention described in the means 4 is that, in the means 1 or 2, the laser decoration process is performed after the laser cutting process.

  Therefore, according to the invention described in the means 4, when the laser decoration process is performed after the laser cutting process, the laser irradiation can be performed without the disk gate during the laser decoration process. For this reason, there is no need to perform laser irradiation avoiding the disk gate, and there is an advantage that laser irradiation can be performed relatively easily.

  The gist of the invention described in the means 5 is that, in the means 1 or 2, the laser cutting process is performed together with the laser decoration process.

  Therefore, according to the invention described in the means 5, there is an advantage that the production efficiency is improved as compared with the case where the laser decoration process and the laser cutting process are performed separately.

  The invention described in the means 6 is the laser decoration process according to any one of the means 1 to 5, wherein in the laser decoration process and the laser cutting process, the resin base material is supported by a robot apparatus while changing its posture. The gist is to perform irradiation.

  Therefore, according to the invention described in the means 6, when performing the laser decoration process and the laser cutting process on the resin base material having a three-dimensional shape, the laser irradiation is performed by adjusting to an optimum angle in each process. Can do.

  The invention described in means 7 is the laser irradiation in the laser decoration process in the means 6, wherein the laser irradiation angle in the laser cutting process with respect to the perpendicular direction of the surface of the base material is used as the reference. The gist is to change the posture of the resin base material by the robot apparatus so as to be larger than the angle.

  Therefore, according to the invention described in the means 7, by setting the laser irradiation angle at the time of the laser cutting step in this way, it is possible to reduce the problem of burrs generated in the opening.

  The gist of the invention described in the means 8 is that in any one of the means 1 to 8, the invention further includes a laser deburring step of removing burrs generated in the opening through the laser cutting step by laser irradiation.

  Therefore, according to the invention described in the means 8, burrs generated in the opening by the laser deburring step can be surely removed.

  The invention described in means 9 is a laser decorating device for directly decorating a substrate surface of a resin base material having a three-dimensional shape and having an opening, which is produced by well-dress molding by a disk gate method, A robot device that supports the resin base material in which a disk gate having a disk portion and a gate portion that surrounds the disk portion and is connected to the base material portion is arranged at a position where the opening is to be formed, and a pattern is drawn on the surface of the base material In order to carry out the laser decoration process of decorating and the laser cutting process of removing the disk gate from the resin base material and forming the opening by cutting the gate portion, the resin base material A laser irradiation apparatus for irradiating a laser with respect to the laser, and a laser irradiation condition changing means for changing the laser irradiation condition in the laser decoration process and the laser cutting process The laser decorating device characterized by comprising a as its gist.

  Therefore, according to the laser decoration device of the invention described in the means 9, in addition to the laser decoration process in which a pattern is drawn on the surface of the base material and decorated by laser irradiation from the laser irradiation device, the disk gate is removed and opened. A laser cutting process for forming the film can be performed. Further, by appropriately changing the laser irradiation conditions by the laser irradiation condition changing means, the laser irradiation conditions in the laser decoration process and the laser cutting process can be individually optimized. Furthermore, since the posture at the time of laser irradiation can be appropriately changed by the robot apparatus that supports the resin base material, the laser irradiation angle in the laser decoration process and the laser cutting process can be optimized.

  As described in detail above, according to the inventions described in the means 1 to 8, when a resin base material having an opening is used, it is possible to efficiently obtain a decorative part having excellent design quality at low cost. it can. According to the invention described in means 9, it is possible to provide a laser decoration device suitable for use in the production of a decorative part by the above production method.

Schematic which shows the laser decorating apparatus used at the time of manufacture of the interior component for motor vehicles of embodiment which actualized this invention. The schematic perspective view which shows the whole interior component for motor vehicles of embodiment. The partial schematic sectional drawing of the interior component for motor vehicles of embodiment. The schematic perspective view which shows the whole resin base material used in the manufacturing method of the interior component for motor vehicles of embodiment. The partial schematic sectional drawing which shows the state which set the resin base material in the robot apparatus after the base material preparation process in the manufacturing method. The partial schematic sectional drawing which shows the mode at the time of a laser decoration process in the manufacturing method. The partial schematic sectional drawing which shows the mode at the time of a laser cutting process in the manufacturing method. In the manufacturing method, the partial schematic sectional drawing which shows a mode when transferring a resin base material after a laser cutting process. The schematic expanded sectional view which shows the interior component for motor vehicles of another embodiment. The schematic perspective view which shows the whole resin base material used in the manufacturing method of the interior component for motor vehicles of another embodiment. The partial schematic sectional drawing which shows the mode at the time of a laser decoration process in the manufacturing method.

  Hereinafter, an automobile interior part according to an embodiment of the present invention and a manufacturing method thereof will be described in detail with reference to FIGS.

  FIG. 1 is a schematic view showing a laser decoration device 30 used when manufacturing the interior part 11, FIG. 2 is a schematic perspective view showing the whole interior part 11, and FIG. 3 is a partial schematic sectional view thereof. As shown in FIGS. 2 and 3, the automobile interior part 11 is constituted by a resin base material 12 having a three-dimensional shape. The resin base material 12 of the present embodiment includes a flat main part 14 and a pair of side parts 15 arranged continuously therewith. Since the angle formed by the main portion 14 and the pair of side portions 15 is about 90 °, the resin base material 12 has a substantially U-shaped cross section. The automotive interior part 11 of the present embodiment is a part that constitutes, for example, an armrest of an automobile door. The resin substrate 12 is a resin molded body molded using an ABS resin, and is colored black as a whole.

  A rectangular opening 13 is formed at the center of the main portion 14 of the automobile interior part 11. The base material surface 16 of the resin base material 12 is directly decorated by forming a pattern (hairline pattern) composed of a number of laser processing grooves 18 by laser irradiation. A metallic coating layer 17 is formed on the substrate surface 16.

  The laser decorating apparatus 30 shown in FIG. 1 basically performs a laser decorating process in which a pattern is directly drawn and decorated on the substrate surface 16 by irradiating the resin substrate 12 with the laser L1. It is a device used to carry out. In the present embodiment, the laser decorating device 30 is also used to perform a laser cutting step of removing the disk gate 21 from the resin base material 12 and forming the opening 13.

  The laser decoration device 30 includes a laser irradiation device 31, a robot device 32, and a control device 33. The laser irradiation device 31 includes a laser generation unit 41 that generates a laser L1 (YAG laser in the present embodiment), a laser deflection unit 42 that deflects the laser L1, and a laser that controls the laser generation unit 41 and the laser deflection unit 42. And a control unit 43. The laser deflection unit 42 is an optical system in which a lens 44 and a reflection mirror 45 are combined. By changing the positions of the lens 44 and the reflection mirror 45, the irradiation position and focal length of the laser L1 are adjusted. It has become. The laser control unit 43 controls the irradiation time modulation, irradiation intensity modulation, irradiation area modulation, and the like of the laser L1.

  The robot device 32 includes a robot arm 46 and a work support unit 47 provided at the tip of the robot arm 46. The work support part 47 supports the resin base material 12 on the upper surface thereof. The robot device 32 drives the robot arm 46 to move the work support portion 47 in the vertical direction, the horizontal direction, and the rotation direction, and changes the position and angle of the resin base material 12. As a result, the irradiation position of the laser L1 with respect to the resin base material 12 is changed.

  As shown in FIGS. 1 and 5, a disk gate holding mechanism 61 is installed on the upper surface of the work support portion 47 so as to correspond to a certain position of the disk gate 21. At the upper end of the disk gate holding mechanism 61, a suction pad 62 communicating with the first evacuation channel 63 is provided. The suction pad 62 is configured to hold the disk portion 22 of the disk gate 21 by vacuum suction. In the disc gate holding mechanism 61, a plurality of second evacuation channels 64 are formed separately from the first evacuation channel 63. By evacuating from the second evacuation channel 64, smoke or dust generated by laser irradiation is sucked and discharged.

  As shown in FIG. 1, the control device 33 is configured by a known computer including a CPU 50, a memory 51, an input / output port 52, and the like. The CPU 50 is electrically connected to the laser irradiation device 31 and the robot device 32, and controls them by various drive signals.

  The memory 51 stores laser irradiation data for performing laser irradiation. Laser irradiation data is data obtained by converting CAD data. The CAD data is data obtained by converting shape data of the substrate surface 16 of the resin substrate 12, image data indicating a pattern, and the like. The laser irradiation data stored in the memory 51 is data indicating the irradiation position, focal length, irradiation angle, irradiation area, irradiation time, irradiation intensity, irradiation cycle, irradiation pitch, and the like of the laser L1. The CPU 50 reads out laser irradiation data from the memory 51 during the laser decoration process, and drives and controls the laser irradiation device 31 based on the irradiation data.

  Here, the CPU 50 reads the laser irradiation data from the memory 51 even during the laser cutting step, and drives and controls the laser irradiation device 31 based on the irradiation data. However, the CPU 50, which is a laser irradiation condition changing means, appropriately changes the irradiation conditions of the laser L1 between the laser decoration process and the laser cutting process. That is, in the laser cutting process, it is necessary to irradiate the laser L1 under conditions that penetrate the front and back surfaces of the resin base material 12, whereas in the laser decoration process, the laser L1 is applied under conditions that do not penetrate the front and back faces of the resin base material 12. Irradiation is necessary. Therefore, relatively strong laser irradiation conditions are set in the laser cutting process, and relatively weak laser irradiation conditions are set in the laser decoration process.

  Next, a method for manufacturing the automobile interior part 11 will be described with reference to FIGS.

  First, an ABS resin is used, and a resin base material 12 prepared by well-dress molding by a disk gate method is prepared (base material preparation step; see FIG. 4). Here, substantially the entire resin base material 12 (main part 14 and side part 15) having a three-dimensional shape on the base material surface 16 side is a decorative surface. As shown in FIGS. 4 and 5, a disk gate 21, which is a location where a resin material is supplied from a molding die at the time of injection molding, is disposed at the opening formation scheduled position P <b> 1 in the resin base material 12. The disk gate 21 has a disk portion 22 having a shape similar to the opening 13 to be formed, and a gate portion 23 that surrounds the disk portion 22 over the entire circumference and is connected to the base material portion. In the present embodiment, the gate portion 23 is formed to be somewhat thinner (for example, about 1.1 mm to 3.5 mm) than the disk portion 22 and the base material portion. Note that the shape of the disk portion 22 in the disk gate 21 is not necessarily similar to the shape of the opening 13, and may be, for example, a circular shape.

  In the subsequent laser decorating process, first, the resin base 12 is set on the work support 47 of the robot apparatus 32 (see FIG. 5). At this time, the disk portion 22 is held in advance on the suction pad 62 of the disk gate holding mechanism 61 by vacuum suction. Next, the CPU 50 reads out laser irradiation data for performing laser irradiation under the setting conditions for laser decoration from the memory 51. Then, the CPU 50 generates a drive signal based on the laser irradiation data, and outputs the generated drive signal to the laser irradiation device 31. The laser irradiation device 31 irradiates the laser L1 based on the drive signal output from the CPU 50. The laser control unit 43 of the laser irradiation device 31 irradiates the laser L1 from the laser generation unit 41 and controls the laser deflection unit 42 according to a predetermined image data pattern. By this control, the irradiation position and focal position of the laser L1 are determined. As a result of the above control, predetermined laser irradiation is performed, a pattern made of the laser processing grooves 18 is formed, and a hairline pattern is applied (see FIG. 6).

  Specifically, in the present embodiment, many laser processed grooves 18 having a depth of about 3 μm to 35 μm and a width of about 10 μm to 200 μm are formed in a region other than the opening formation scheduled position P1 on the substrate surface 16. Further, as shown in FIG. 6, the laser irradiation angle θ1 at the time of the laser cutting process with reference to the perpendicular direction of the substrate surface 16 is set in the range of 0 ° to 10 °, and the laser L1 is irradiated. did.

  In the subsequent laser cutting step, the CPU 50 reads from the memory 51 laser irradiation data for performing laser irradiation under the setting conditions for laser cutting. Then, the CPU 50 generates a drive signal based on the laser irradiation data, and outputs the generated drive signal to the laser irradiation device 31. The laser irradiation device 31 irradiates the laser L1 based on the drive signal output from the CPU 50. The laser control unit 43 of the laser irradiation device 31 irradiates the laser L1 from the laser generation unit 41 and controls the laser deflection unit 42 according to a predetermined image data pattern. By this control, the irradiation position and focal position of the laser L1 are determined. As a result of the above control, predetermined laser irradiation is performed along the outline of the opening formation scheduled position P1, and the gate portion 23 in the disk gate 21 is cut (see FIG. 7). Thereby, the disk gate 21 is removed from the resin base material 12 and the opening 13 penetrating the front and back surfaces of the resin base material 12 is formed.

  Specifically, in this embodiment, the laser irradiation was performed by setting the output of the laser L1 in the laser cutting process higher than the output of the laser L1 in the laser decoration process. Further, as shown in FIG. 7, the laser irradiation angle θ2 at the time of the laser cutting process with reference to the perpendicular direction of the substrate surface 16 is set in the range of 10 ° to 30 °, and the laser L1 is inclined to some extent. I tried to irradiate. That is, the laser irradiation angle θ2 at the time of the laser cutting process is set to be larger than the laser irradiation angle θ1 at the time of the laser decoration process, and the opening 13 having a shape that expands from the substrate surface 16 toward the substrate back surface is formed. . Thereafter, the resin base 12 is removed from the work support 47 (see FIG. 8) and transferred to a coating apparatus (not shown). Further, the evacuation is temporarily stopped, the disc gate 21 held by the disc gate holding mechanism 61 is released, and the disc gate 21 is removed from the work support portion 47 by a discharge means (not shown).

  In the subsequent metallic coating layer forming step, the metallic coating layer 17 is formed on the substrate surface 16 on which the handle is formed (see FIG. 3). Specifically, in the present embodiment, the metallic paint layer 17 having a thickness of about 10 μm to 100 μm is formed by spraying a metallic paint using an atomizing coating machine (not shown) and drying and curing. As a result, the interior part 11 of the present embodiment is completed.

  Therefore, according to the present embodiment, the following effects can be obtained.

  (1) As described above, in the manufacturing method of the present embodiment, decoration is performed using the resin base material 12 produced by well-dress molding by a disk gate method. Since a weld line does not occur in the resin base material 12 obtained by this method, a laser-processed groove 18 can be directly formed on the base material surface 16 for decoration, and an automobile having excellent design quality. The interior part 11 for a vehicle can be obtained. Moreover, since it is not necessary to form a coating film for covering the weld line, it is possible to reduce the cost and improve the production efficiency of the automobile interior part 11. Further, by performing the laser cutting process, the disk gate 21 is removed from the resin base material 12 and the opening 13 is formed. For this reason, it is not necessary to add a gate cut mechanism to the molding die. Therefore, it is possible to avoid the complicated structure of the molding die and the high manufacturing cost. As described above, according to this manufacturing method, when the resin base material 12 having the opening 13 is used, the automotive interior part 11 having excellent design quality can be obtained efficiently at low cost.

  (2) In the manufacturing method of this embodiment, since the gate part 23 is formed thinner than the disk part 22 and the base material part, the gate part 23 can be cut | disconnected comparatively easily by a laser cutting process.

  (3) In the manufacturing method of this embodiment, the laser cutting process is performed after the laser decoration process. For this reason, for example, there is an advantage that it is possible to avoid a situation in which the disc gate 21 that has been cut and removed falls and becomes a foreign substance.

  (4) In the manufacturing method of this embodiment, the laser irradiation is performed while the resin base material 12 is supported by the robot device 32 and the posture thereof is changed in the laser decoration process and the laser cutting process. Therefore, when performing the laser decoration process and the laser cutting process on the resin base material 12 having a three-dimensional shape, the laser irradiation can be performed by adjusting the laser irradiation angles θ1 and θ2 to be optimum in each process.

  (5) In the manufacturing method of the present embodiment, the posture of the resin base material 12 is changed by the robot device 32 so that the laser irradiation angle θ2 at the laser cutting step is larger than the laser irradiation angle θ1 at the laser decoration step. Like to do. With such a setting, it is possible to reduce the problem of burrs generated in the opening 13.

  (6) According to the laser decorating device 30 of the present embodiment, in addition to the laser decorating process of drawing a pattern on the substrate surface 16 and decorating, the laser cutting process of removing the disk gate 21 and forming the opening 13 It can be performed. Further, the irradiation condition of the laser L1 is appropriately changed by the laser irradiation condition changing means. Therefore, it is possible to individually optimize the irradiation conditions of the laser L1 in the laser decoration process and the laser cutting process. Furthermore, since the posture at the time of laser irradiation can be appropriately changed by the robot device 32 that supports the resin base material 12, the laser irradiation angles θ1 and θ2 in the laser decoration process and the laser cutting process can be optimized. Therefore, it is possible to provide a laser decoration device 30 suitable for use in manufacturing the interior part 11 by the above manufacturing method.

  In addition, you may change embodiment of this invention as follows.

  In the above-described embodiment, the method for manufacturing the interior part 11 having only one opening 13 is illustrated. However, for example, when manufacturing the interior part 11A having a plurality of openings 13, the following may be performed. An automotive interior part 11A of another embodiment shown in FIG. 9 has four rectangular openings 13. FIG. 10 shows a resin substrate 12A used in the method for manufacturing the interior part 11A. There are four opening formation scheduled positions P1 in the resin base 12A. In the base material preparation step, a resin base material 12A on which the disk gate 21 is arranged is prepared for one of them. For the remaining three parts, not the disk gate 21 but the closed part 24 having the same thickness as the gate part 23 is formed (see FIG. 11). The blocking portion 24 is connected to the base material portion via the gate portion 23. And in the laser cutting process performed after a laser decoration process, the disk gate 21 and the obstruction | occlusion part 24 are removed by laser irradiation with respect to each gate part 23, and the opening 13 is formed in four places. According to this method, even when a resin base 12A having a plurality of openings 13 is used, it is possible to efficiently obtain an interior part 11A having excellent design quality at a low cost.

  -In the said embodiment, although the laser cutting process was implemented after the laser decoration process, you may change the order of a process. For example, a laser decoration process may be performed after the laser cutting process, and in this case, it is possible to perform laser irradiation without the disk gate 21 during the laser decoration process. For this reason, there is no need to perform the laser irradiation avoiding the disk gate 21, and there is an advantage that the laser irradiation can be performed relatively easily. Alternatively, the laser cutting process may be performed together with the laser decoration process, and in this case, the production efficiency is improved as compared with the case where the laser decoration process and the laser cutting process are performed separately. There are benefits.

  In the embodiment described above, the output of the laser L1 in the laser cutting process is set higher than the output of the laser L1 in the laser decoration process in order to provide strength and weakness in the laser irradiation conditions in the laser cutting process and the laser decoration process. In addition, for example, the moving speed of the laser L1 in the laser cutting process may be set slower than the moving speed of the laser L1 in the laser decoration process. Alternatively, the wavelength of the laser L1 in the laser cutting process may be set longer than the wavelength of the laser L1 in the laser decoration process.

  In the above embodiment, the deburring of the opening 13 is not particularly performed. However, in the case where burrs are likely to occur, a laser deburring step may be added after the laser cutting step.

  In the above embodiment, the resin base material 12 made of ABS resin is used. However, for example, the resin base material 12 made of acrylic resin, polypropylene resin, vinyl chloride resin, or the like may be used.

  -In the said embodiment, although the manufacturing method of the decorative component of this invention was materialized in the manufacturing method of the structural component of the armrest of the door which is a kind of interior component for motor vehicles, interior components other than this, for example, a console box, You may embody in the manufacturing method of components, such as an instrument panel, a center cluster, a cup holder, a glove box, an upper box, and an assist grip. Of course, in addition to automobile interior parts, the present invention may be embodied in a method of manufacturing decorative parts such as exterior parts for automobiles (radiator grills, emblems, mudguards, etc.) and decorative panels such as furniture and home appliances. .

  Next, in addition to the technical ideas described in the claims, the technical ideas grasped by the embodiments described above are listed below.

  (1) In any one of the means 1 to 7, the laser output in the laser cutting step is set higher than the laser output in the laser decoration step.

  (2) In any one of the means 1 to 7, the moving speed of the laser in the laser cutting process is set slower than the moving speed of the laser in the laser decoration process.

  (3) In any one of means 1 thru | or 7, setting the wavelength of the laser in the said laser cutting process longer than the wavelength of the laser in the said laser decoration process.

  (4) In any one of the means 1 to 6, in the base material preparation step, the disk gate is arranged for one of the plurality of opening formation scheduled positions, and the disk is used for the remaining ones. Preparing the resin base material in which a closed portion having the same thickness as the gate portion is formed instead of the gate, and removing the closed portion by laser irradiation of the closed portion in the laser cutting step; To form the opening.

  (5) The means 7 is provided with a disk gate holding mechanism for holding the disk gate in the resin base material at least during the laser cutting step.

  (6) In the means 7, a disk gate holding mechanism for holding the disk gate in the resin base material by vacuum suction at least during the laser cutting step is installed.

DESCRIPTION OF SYMBOLS 11, 11A ... Automotive interior parts as decoration parts 12, 12A ... Resin base material 13 ... Opening 16 ... Base material surface 21 ... Disc gate 22 ... Disc part 23 ... Gate part 30 ... Laser decorating device 31 ... Laser irradiation Device 32 ... Robot device 33 ... CPU as laser irradiation condition changing means
P1 ... opening formation scheduled position θ1 ... laser irradiation angle during laser decoration process θ2 ... laser irradiation angle during laser cutting process

Claims (9)

A method of manufacturing a decorative part that directly decorates a base material surface of a resin base material that has a three-dimensional shape and has an opening,
A base material for preparing the resin base material, which is produced by well-dress molding by a disk gate method, and has a disk portion and a gate portion surrounding the disk portion and connected to the base material portion, and arranged at a position where an opening is to be formed A preparation process;
A laser decoration process for drawing and decorating a pattern on the substrate surface by laser irradiation;
A method for manufacturing a decorative part, comprising: cutting the gate portion by laser irradiation to remove the disk gate from the resin base material and forming the opening.   The method of manufacturing a decorative part according to claim 1, wherein the gate part is formed thinner than the disk part.   The method for manufacturing a decorative part according to claim 1, wherein the laser cutting step is performed after the laser decoration step.   The method for producing a decorative part according to claim 1, wherein the laser decoration step is performed after the laser cutting step.   The said laser cutting process is implemented in the case of the said laser decoration process, The manufacturing method of the decorating part of Claim 1 or 2 characterized by the above-mentioned.   6. The laser irradiation according to claim 1, wherein, in the laser decorating step and the laser cutting step, laser irradiation is performed while changing the posture of the resin base material supported by a robot apparatus. The manufacturing method of the decorative component of description.   According to the robot apparatus, the laser irradiation angle at the time of the laser cutting process with respect to the perpendicular direction of the substrate surface is larger than the laser irradiation angle at the time of the laser decoration process with reference to the perpendicular direction. The method of manufacturing a decorative part according to claim 6, wherein the posture of the resin base material is changed.   The method for manufacturing a decorative part according to any one of claims 1 to 7, further comprising a laser deburring step of removing a burr generated in the opening through the laser cutting step by laser irradiation. A laser decoration device for directly decorating a substrate surface of a resin substrate having a three-dimensional shape and having an opening,
A robot apparatus which supports the resin base material, which is manufactured by well-dress molding by a disk gate method, and which has a disk portion and a gate portion surrounding the disk portion and connected to the base material portion, is arranged at a position where an opening is to be formed. When,
A laser decorating step of drawing and decorating a pattern on the surface of the base material, and a laser cutting step of removing the disk gate from the resin base material and forming the opening by cutting the gate portion. In order to carry out, a laser irradiation device for irradiating the resin substrate with a laser;
A laser decoration device comprising: laser irradiation condition changing means for changing the laser irradiation condition in the laser decoration step and the laser cutting step.

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