JP5781473B2 - Decorative parts manufacturing apparatus and manufacturing method - Google Patents

Description

  The present invention relates to a decorative device manufacturing apparatus and a manufacturing method for adding decoration to a surface of a decorative component having a three-dimensional shape by dropping a droplet from a droplet supply nozzle.

  In automotive interior parts, many decorative parts (for example, console boxes, instrument panels, armrests, etc.) in which decoration is added to the surface of the resin molded body in order to improve design and quality have been put into practical use. . As a conventional decoration method for adding decoration to such a decorative part, hydraulic transfer is generally used. The hydraulic transfer is a technique in which a special film is floated on the surface of the water, and a predetermined pattern (pattern such as a wood grain pattern or a geometric pattern) printed on the film is transferred to the surface of the resin molded body by water pressure. According to this technique, printing on a three-dimensional curved surface can be performed.

  However, when performing hydraulic transfer, the pattern is often stretched or distorted when the pattern is transferred to the resin molding. As a result, the pattern cannot be accurately added and the pattern varies, resulting in a deterioration in product yield and an increase in manufacturing cost. Therefore, it is desired to develop a new technique for adding a pattern on the surface of a resin molded body and decorating it by a method different from hydraulic transfer.

  Patent Document 1 proposes a three-dimensional surface printing apparatus that prints by ejecting ink as an apparatus for decorating the surface of a part having a three-dimensional shape. In this three-dimensional surface printing apparatus, as shown in FIG. 13, the height of the print head 52 is displaced according to the shape of the curved component surface 51, and the head tip (tip of the ballpoint pen) contacts the curved component surface 51. Printing is performed in the

  Further, as a device for decorating the surface of a part having a three-dimensional shape, a coating apparatus for spraying a paint mist from a spray gun or the like to coat the surface of the part is generally known. When a part surface is partially decorated using such a coating apparatus, a metal mask made of metal or the like is disposed on the part surface, and coating is performed so that paint mist does not adhere to a non-painting region.

JP 2001-10032 A

  By the way, since the solid surface printing apparatus of patent document 1 employ | adopts the method printed by adjusting the gap of a height direction, the surface (component side surface etc.) orthogonal to a printing surface cannot be printed.

  In addition, when painting on the surface of a part having a three-dimensional shape using a painting device, part of the paint mist sprayed from a spray gun or the like is applied to the part surface, while other paint mist is in the air. Splashes or adheres to a metal mask or the like. Moreover, in order to maintain a favorable working environment, an exhaust facility for exhausting the paint mist scattered in the air from a painting booth or the like is required. From the above, there arises a problem that the manufacturing cost of the decorative part increases.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a method and apparatus for manufacturing a decorative part that can reliably add decoration to the surface of a part having a three-dimensional shape at low cost. It is to provide.

In order to solve the above-mentioned problem, the invention described in means 1 (Claim 8) adds decoration by dropping droplets from a droplet supply nozzle onto the surface of a decorative part having a three-dimensional shape. A method of manufacturing a decorative component, wherein the droplet supply nozzle and the component surface are in a non-contact state, and a drop direction of the droplet and a normal direction on the component surface to which the droplet is applied A posture changing step for changing the posture of the decorative part so as to match, and a drop for dropping droplets downward from the droplet supply nozzle while changing the posture of the decorative component or after changing the posture The gist is a method for manufacturing a decorative part, which includes a step.

  According to the invention described in the means 1, in the posture changing step, the posture of the decorative part is changed so that the drop direction of the droplet coincides with the normal direction on the part surface. In the dropping step, a droplet is dropped downward from the droplet supply nozzle, and the droplet is applied to the surface of the component, thereby decorating the component surface. As described above, in the present invention, the paint mist is not scattered in the air unlike the conventional coating apparatus, and the liquid droplets are reliably applied to the surface of the component, so that the cost of materials such as paint and ink is suppressed. Can do. Furthermore, since the work environment can be satisfactorily maintained without providing exhaust equipment or the like as in the prior art, equipment costs can be reduced. In addition, since the droplets are dropped from the droplet supply nozzle while changing the posture of the decorative part or after the posture is changed, it is possible to reliably add decoration to the upper surface and the side surface of the component including the curved surface. As a result, a decorative part having a three-dimensional shape can be reliably manufactured at low cost.

The invention described in means 2 (Claim 9) is that, in the means 1, in the posture changing step, the posture of the decorative component is maintained while maintaining a gap between the tip of the droplet supply nozzle and the surface of the component at a constant interval. The gist of this is to change.

  According to the invention described in the means 2, since the gap between the tip of the droplet supply nozzle and the component surface is maintained at a constant interval, the droplets dropped from the droplet supply nozzle are uniformly applied to the component surface. Can do. Therefore, it is possible to add decoration with high design without uneven coating on the surface of the component.

The invention described in means 3 (Claim 10) is the means 1, wherein a plurality of the droplet supply nozzles are arranged, and in the dropping step, the droplet supply nozzle among the plurality of droplet supply nozzles. Droplets are dropped from the droplet supply nozzle whose gap between the tip of the component and the component surface is within a predetermined range, while droplets are dropped from the droplet supply nozzle whose gap is outside the predetermined range The gist of this is to stop.

  When a plurality of droplet supply nozzles are arranged as in an inkjet head or the like, if the surface of the component is a curved surface, it is difficult to maintain a constant gap at the tip of each droplet supply nozzle with respect to the surface. . In such a case, as in the invention described in the means 3, a droplet is dropped from a droplet supply nozzle whose gap is within a predetermined range, and from a droplet supply nozzle whose gap is outside the predetermined range. Dropping of the droplet is stopped. If it does in this way, a droplet can be efficiently and reliably applied to the part surface. Further, the liquid droplets can be uniformly applied on the surface of the component, so that there is no coating unevenness and decoration with high design can be added.

The invention described in means 4 (Claim 1) is an apparatus for manufacturing a decorative part by adding decoration to the surface of a decorative part having a three-dimensional shape, and drops a droplet in a vertical drop direction. An inkjet head provided with a plurality of first droplet supply nozzles, and a second droplet supply nozzle that drops the droplets in the vertical drop direction, and the diameter of the second droplet supply nozzle is The dispenser set larger than the diameter of the first droplet supply nozzle, the droplet supply nozzle and the component surface are in non-contact state, and the vertical drop direction of the droplet and the droplet are applied. Attitude changing means for changing the attitude of the decorative part so that the normal direction on the surface of the part matches, and controlling the output of the droplets in the droplet supply nozzle, and the attitude changing means Control means for controlling the drive of The decorative component of a manufacturing apparatus characterized by comprising as its gist.

  According to the invention described in the means 4, the posture of the decorative part is changed so that the drop direction of the droplet coincides with the normal direction of the part surface by controlling the posture changing means by the control means. Then, by controlling the droplet supply nozzle by the control means, the droplet is dropped from the droplet supply nozzle and applied to the surface of the component, thereby decorating the component surface. As described above, in the manufacturing apparatus of the present invention, the paint mist is not scattered in the air unlike the conventional coating apparatus, and the liquid droplets are reliably applied to the surface of the component. Can be suppressed. Furthermore, since the work environment can be satisfactorily maintained without providing exhaust equipment or the like as in the prior art, equipment costs can be reduced. In addition, because the posture changing means can drop droplets from the droplet supply nozzle while changing the posture of the decorative part or after changing the posture, it can be reliably applied to the top and side surfaces of parts including curved surfaces. You can add decoration to the. Thus, if the manufacturing apparatus of this invention is used, the decorative component which has a three-dimensional shape can be reliably manufactured at low cost.

The invention described in means 4A (Claim 2) is that, in means 4, high-viscosity paint or metallic paint droplets having a relatively high viscosity are dropped from the second droplet supply nozzle of the dispenser and applied. A decorative part characterized in that droplets of a low-viscosity paint having a viscosity relatively lower than that of the high-viscosity paint or the metallic paint are dropped from the first droplet supply nozzle of the inkjet head and applied. The gist of this manufacturing apparatus is as follows.
The invention described in means 4B (Claim 3) is that, in means 4, the liquid droplets are dropped from the first liquid droplet supply nozzle of the ink jet head onto the flat surface of the surface of the component, and the surface of the component is applied. The gist of the apparatus for manufacturing a decorative part is that a droplet is dropped from the second droplet supply nozzle of the dispenser and applied onto the curved surface of the dispenser.
The invention described in means 4C (Claim 4) is that, in any one of means 4, 4A and 4B, the droplets are made of ultraviolet curable paint or ink and are provided in the vicinity of the droplet supply nozzle. The gist of the apparatus for producing a decorative part is provided with UV irradiation means for irradiating the paint or ink applied to the surface of the part with ultraviolet rays.
The invention described in means 5 (Claim 5) is characterized in that, in the means 4, the posture changing means has an adjustment function for keeping a gap between the tip of the droplet supply nozzle and the surface of the component at a constant interval. The gist of this is

  According to the invention described in the means 5, the gap between the tip of the droplet supply nozzle and the part surface is maintained at a constant interval by controlling the posture changing means by the control means. If it does in this way, the droplet dripped from the droplet supply nozzle can be uniformly apply | coated to the component surface. Therefore, it is possible to add decoration with high design without uneven coating on the surface of the component.

In the invention described in means 6 (Claim 6) , in the means 4 or 5, in order to keep the gap between the tip of the liquid drop supply nozzle and the surface of the component at a constant interval, the liquid drop supply nozzle is moved vertically. The gist of the present invention is to provide a height adjusting means to be moved to the position.

  According to the invention described in Means 6, the gap between the tip of the droplet supply nozzle and the component surface is constant by moving the droplet supply nozzle in the vertical direction (the height direction of the component) by the height adjusting unit. Kept at intervals. Even in this case, it is possible to uniformly apply the droplets dropped from the droplet supply nozzle to the surface of the component. Therefore, it is possible to add decoration with high design without uneven coating on the surface of the component.

In the invention described in means 7 (Claim 7) , in any one of means 4 to 6, in addition to the function of changing the attitude of the decorative part, the attitude changing means horizontally positions the decorative part. Its gist is that it has a function of moving in the direction.

  According to the invention described in the means 7, the position of the decorative part is moved in the horizontal direction by the posture changing means, and the liquid droplets are applied to a predetermined position on the surface of the part, so that decoration is added to the surface of the part. If it does in this way, since it is not necessary to prepare the means for moving a decoration component in a horizontal direction separately, and a decoration component can be moved by an attitude | position change means, apparatus cost can be restrained low.

As described above in detail, according to the inventions described in claims 1 to 10 , decoration can be reliably added to the surface of a decorative part having a three-dimensional shape at a low cost.

The schematic block diagram which shows the decorating apparatus of 1st Embodiment. The perspective view which shows the interior component for vehicles. Explanatory drawing which shows the manufacturing method of the vehicle interior components of 1st Embodiment. Explanatory drawing which shows the manufacturing method of the vehicle interior components of 1st Embodiment. Explanatory drawing which shows the manufacturing method of the vehicle interior components of 1st Embodiment. The schematic block diagram which shows the decorating apparatus of 2nd Embodiment. Explanatory drawing which shows the manufacturing method of the vehicle interior component of 2nd Embodiment. Explanatory drawing which shows the manufacturing method of the vehicle interior component of 2nd Embodiment. Explanatory drawing which shows the manufacturing method of the interior component for vehicles of 2nd Embodiment. Explanatory drawing which shows the manufacturing method of the interior component for vehicles of 2nd Embodiment. The schematic block diagram which shows the decorating apparatus of 3rd Embodiment. The schematic block diagram which shows the decorating apparatus of another embodiment. The schematic block diagram which shows the solid surface printing apparatus of a prior art.

[First Embodiment]
Hereinafter, an embodiment in which the present invention is embodied in an interior decoration device for a vehicle will be described in detail with reference to the drawings.

  As shown in FIG. 1, the decoration device 1 according to the present embodiment adds a decoration by dropping a droplet L1 on the surface of a vehicle interior part 2 (decoration part) having a three-dimensional shape. It is a production device for decorative parts. As shown in FIGS. 1 and 2, the vehicle interior component 2 of the present embodiment is a resin molded product that is molded into a square lid shape having side wall portions 3 on four sides using, for example, ABS resin. The vehicle interior part 2 is used as a lid member such as a console box. The upper surface 4 of the vehicle interior part 2 is formed in a flat shape and has a size of about 15 cm long × 15 cm wide. The height of the side wall 3 of the vehicle interior part 2 has a size of about 5 cm. In the vehicle interior part 2, the side surface 5 (outer surface of the side wall portion 3) is provided so as to be substantially orthogonal to the upper surface 4, and the intersection of the upper surface 4 and the side surface 5 is curved so as to be gradually inclined. The inclined surface 6 is formed.

  The decoration device 1 of the present embodiment includes an inkjet head 11 fixed above the device, a droplet supply device 12 for supplying ink to the inkjet head 11, and a fixing jig 13 on which the vehicle interior component 2 can be installed. , A robot 14 for moving the fixing jig 13, a control device 15, and the like.

  A plurality of droplet supply nozzles 17 are arranged along the longitudinal direction of the inkjet head 11. The inkjet head 11 according to the present embodiment has a dedicated nozzle for each of the four colors of black, yellow, cyan, and magenta. In addition, the droplet supply device 12 includes a plurality of cartridges 18 in which black, yellow, cyan, and magenta inks are stored, and each cartridge 18 has a liquid in the inkjet head 11 via an ink supply tube 19 and the like. It is connected to the droplet supply nozzle 17. The inkjet head 11 is a head that employs, for example, a piezo method, and drops a predetermined amount of ink droplet L1 downward from each droplet supply nozzle 17 in accordance with a drive signal supplied from the control device 15. In the inkjet head 11 of the present embodiment, the coating width (the length of the arrangement of the nozzles 17) that can drop the droplets L1 is wider than the lateral width of the upper surface 4 of the vehicle interior part 2. .

  The fixing jig 13 is disposed at a position facing the inkjet head 11, and the vehicle interior part 2 is installed on the upper surface 4 thereof. An arm 14 a of the robot 14 is connected to the fixing jig 13. The robot 14 drives the arm 14 a to move the fixing jig 13 in the up and down direction, the left and right direction, and the rotation direction, and changes the posture of the vehicle interior part 2. Specifically, as shown in FIG. 2, the robot 14 according to the present embodiment moves the vehicle interior part 2 in the X direction and the Y direction that are horizontal directions, and the Z direction that is the height direction. It has. The robot 14 also includes a mechanism for rotating the vehicle interior part 2 about the X, Y, and Z directions.

  As shown in FIG. 1, the control device 15 is configured by a known computer including a CPU 21, an HDD 22 (hard disk drive), a RAM 23, and the like. The control device 15 is electrically connected to the inkjet head 11 and the robot 14 and controls them by various drive signals.

  In the HDD 22, shape data indicating the three-dimensional shape of the vehicle interior part 2, data such as pattern data corresponding to a pattern drawn on the vehicle interior part 2, a control program for controlling the inkjet head 11 and the robot 14, etc. Is remembered. The RAM 23 is a memory used as a work area for the CPU 21. The CPU 21 executes a control program using the RAM 23 and controls the entire apparatus in an integrated manner.

  Next, the manufacturing method of the interior component 2 for vehicles using the decorating apparatus 1 of this Embodiment is demonstrated.

  First, after the vehicle interior part 2 after resin molding is installed on the fixing jig 13 by an operator, a processing start button (not shown) provided in the control device 15 is operated, whereby the decoration device 1 is started.

  The CPU 21 (control means) of the control device 15 reads the shape data and pattern data of the vehicle interior part 2 stored in the HDD 22 into the RAM 23. Then, the CPU 21 drives the robot 14 based on the shape data, thereby moving the fixing jig 13 to place the upper surface 4 of the vehicle interior part 2 below the inkjet head 11 (see FIG. 3). Here, the gap between the tip of each nozzle 17 in the inkjet head 11 and the upper surface 4 of the vehicle interior part 2 is held at a constant interval (for example, 3 mm to 5 mm).

  Thereafter, the CPU 21 drives the inkjet head 11 based on the pattern data, thereby dropping the ink droplet L1 from the nozzle 17 of each color corresponding to the pattern. At this time, the CPU 21 drives the robot 14 so that the gap between the tip of the droplet supply nozzle 17 and the upper surface 4 of the vehicle interior component 2 is kept constant while the vehicle interior component 2 is moved in the horizontal direction (for example, (Y direction). In the decorating device 1 of the present embodiment, the droplet L1 is dropped from each droplet supply nozzle 17 in the inkjet head 11 at a constant drop amount, and the vehicle interior part is at an optimum speed according to the drop amount. 2 is moved. As a result, each color droplet L1 is applied to the upper surface 4 of the vehicle interior part 2, and a pattern is drawn on the upper surface 4. In the present embodiment, since the application width of the droplet L1 is wider than the upper surface 4 of the vehicle interior component 2 in the inkjet head 11, the upper surface of the vehicle interior component 2 by the horizontal movement of the vehicle 14 by the robot 14 once. 4 is drawn. When the size of the vehicle interior part 2 is large and the width of the upper surface 4 is wider than the application width of the droplet L1, a pattern is drawn on the upper surface 4 of the vehicle interior part 2 by a plurality of movements. After completing the drawing of the pattern on the upper surface 4, the CPU 21 temporarily stops the dropping of the droplet L <b> 1 from the droplet supply nozzle 17.

  Next, the CPU 21 drives the robot 14 to change the posture of the vehicle interior component 2 so that the side surface 5 of the vehicle interior component 2 faces the inkjet head 11 as shown in FIG. Posture change step). Here, in a state in which the tip of the droplet supply nozzle 17 and the component surface are not in contact with each other, the drop direction (vertical direction) of the droplet L1 and the normal direction of the side surface 5 on which the droplet L1 is applied match. In addition, the attitude of the vehicle interior part 2 is changed. Further, the robot 14 adjusts the gap so that the gap between the tip of each droplet supply nozzle 17 and the side surface 5 is maintained at a constant interval simultaneously with the change in the attitude of the vehicle interior part 2. Then, after the posture of the vehicle interior part 2 is changed, the CPU 21 drives the inkjet head 11 based on the shape data and the pattern data. At this time, the CPU 21 among the plurality of droplet supply nozzles 17 provided in the inkjet head 11 is a nozzle 17 (side surface 5) in which the gap between the nozzle tip and the side surface 5 is within a predetermined range (for example, within 5 mm). And the ink droplet L1 is dropped from the selected nozzle 17 (dropping step). On the other hand, it is assumed that the drop of the liquid droplet L1 from the nozzle 17 that does not face the side surface 5, that is, the nozzle 17 in which the gap between the nozzle tip and the side surface 5 is outside the predetermined range is stopped. In this state, the CPU 21 drives the robot 14 to move the vehicle interior part 2 in the horizontal direction (longitudinal direction of the side surface 5, Y direction in FIG. 4). As a result, the droplets L1 of the respective colors are applied to the side surface 5 of the vehicle interior part 2, and a pattern is drawn on the side surface 5 of the vehicle interior part 2. Similarly, a pattern is drawn on the remaining three side surfaces 5 by repeating the posture changing step and the dropping step described above.

  Further, the CPU 21 drives the robot 14 so that the inclined surface 6 at the intersection of the upper surface 4 and the side surface 5 in the vehicular interior part 2 faces the inkjet head 11 as shown in FIG. The attitude of the vehicle interior part 2 is changed (attitude change step). Further, the robot 14 adjusts the gap so that the gap between the tip of the droplet supply nozzle 17 and the inclined surface 6 is maintained at a constant interval simultaneously with the change in the attitude of the vehicle interior part 2. Then, after the posture of the vehicle interior part 2 is changed, the CPU 21 drives the inkjet head 11 based on the shape data and the pattern data. At this time, the CPU 21 selects a nozzle 17 in which the gap between the nozzle tip and the inclined surface 6 is within a predetermined range among the plurality of droplet supply nozzles 17 provided in the inkjet head 11, and selects the nozzle 17 from the selected nozzle 17. The ink droplet L1 is dropped (dropping step). On the other hand, the droplet L1 from the nozzle 17 whose gap between the nozzle tip and the inclined surface 6 is outside the predetermined range is stopped. In this state, the CPU 21 drives the robot 14 to move the vehicle interior part 2 in the horizontal direction (longitudinal direction of the inclined surface 6, Y direction in FIG. 5). As a result, the droplets L1 of the respective colors are applied to the inclined surface 6 of the vehicle interior part 2, and a pattern is drawn on the inclined surface 6 of the vehicle interior part 2. Similarly, the pattern is drawn on each inclined surface 6 by repeating the posture changing step and the dropping step described above on the other inclined surfaces 6.

  Through the above steps, a pattern is drawn by applying ink to the entire surface (upper surface 4, side surface 5, and inclined surface 6) of vehicle interior part 2. Thereafter, a clear coat layer for protecting the pattern is formed on the surfaces 4 to 6 of the vehicle interior part 2. The clear coat layer in the present embodiment is formed using a decoration device having the same configuration as that of the decoration device 1. This decoration device is the same as the decoration device 1 except that a cartridge 18 filled with a clear coat paint (clear paint) instead of ink is attached to the droplet supply device 12. . In order to prevent clogging of the droplet supply nozzle 17 in the inkjet head 11, a low-viscosity clear paint is used as the paint. Then, by repeatedly performing the posture changing step and the dropping step described above, the clear paint is applied to the surfaces 4 to 6 of the vehicle interior part 2, and then a clear coating layer is formed through a predetermined drying process. Through the above steps, the vehicle interior part 2 of the present embodiment is manufactured.

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

  (1) In the decoration device 1 according to the present embodiment, after the posture of the vehicle interior component 2 is changed so that the drop direction of the droplet L1 coincides with the normal direction on the component surface, each droplet is supplied. A droplet is dropped from the nozzle 17 downward. As described above, when the decoration device 1 of the present embodiment is used, the paint mist is not scattered in the air unlike the conventional coating device, and the droplet L1 is reliably applied to the component surfaces 4 to 6. Therefore, the material cost of the ink can be suppressed. Furthermore, since the work environment can be satisfactorily maintained without providing exhaust equipment or the like as in the prior art, equipment costs can be reduced. In addition, since the droplet L1 is dropped from the droplet supply nozzle 17 after the attitude of the vehicle interior part 2 is changed, the decoration can be surely applied to the side surface 5 and the inclined surface 6 in addition to the upper surface 4. As a result, the vehicle interior part 2 having a three-dimensional shape can be reliably manufactured at low cost.

  (2) In the decoration device 1 of the present embodiment, the gap between the tip of the droplet supply nozzle 17 and the surfaces 4 to 6 of the vehicle interior part 2 is maintained at a constant interval. It is possible to uniformly apply the droplets L1 dropped from the liquid to the surfaces 4 to 6 of the vehicle interior part 2. Therefore, it is possible to add decoration with high designability without application unevenness on the surfaces 4 to 6 of the vehicle interior part 2.

  (3) In the decoration device 1 of the present embodiment, a plurality of droplet supply nozzles 17 are arranged in the inkjet head 11. Then, in the dropping step of the droplet L1, the droplet L1 is dropped from the droplet supply nozzle 17 whose gap is within a predetermined range, and the droplet L1 from the droplet supply nozzle 17 whose gap is outside the predetermined range. The dripping is stopped. If it does in this way, the droplet L1 can be efficiently and reliably apply | coated to the surfaces 4-6 of the interior component 2 for vehicles. In addition, the liquid droplets L1 can be uniformly applied on the surfaces 4 to 6 of the vehicle interior part 2, so that there is no coating unevenness and decoration with high design can be added.

(4) In the decoration device 1 of the present embodiment, the robot 14 is used as posture changing means. In addition to being able to freely change the attitude of the vehicle interior part 2, the robot 14 can move the position of the vehicle interior part 2 in the horizontal direction while maintaining the attitude of the vehicle interior part 2. Therefore, compared with the case where the attitude | position change and movement of the vehicle interior component 2 are implement | achieved by a separate apparatus, apparatus cost can be restrained low.
[Second Embodiment]

  Next, a second embodiment of the present invention will be described with reference to the drawings.

  As shown in FIG. 6, the decoration device 1 </ b> A according to the present embodiment is different from the first embodiment in that a dispenser 31 is provided instead of the inkjet head 11. Hereinafter, the description will focus on the differences in the present embodiment.

  In the decoration device 1A of the present embodiment, a dispenser 31 is fixed above the device, and the dispenser 31 is provided with one droplet supply nozzle 32. The cartridge 34 mounted on the droplet supply device 33 is filled with paint, and the paint is supplied to the droplet supply nozzle 32 of the dispenser 31. The dispenser 31 of the present embodiment is a dispenser that employs, for example, a solenoid valve type, and drops a coating liquid droplet L2 downward from the droplet supply nozzle 32 in accordance with a drive signal supplied from the control device 15. The droplet supply nozzle 32 provided in the dispenser 31 has a larger diameter than the droplet supply nozzle 17 of the inkjet head 11 in the first embodiment, and a droplet L2 of a paint or metallic paint having a higher viscosity than the ink. Can be dripped without clogging. Other configurations in the decoration device 1A (configurations of the vehicle interior part 2, the fixing jig 13, the robot 14, and the control device 15) are the same as those in the first embodiment, and thus the description thereof is omitted here.

  Next, the manufacturing method of the interior component 2 for vehicles using the decorating apparatus 1A of this Embodiment is demonstrated.

  First, the CPU 21 of the control device 15 drives the robot 14 based on the shape data of the vehicle interior part 2 to move the fixing jig 13 so that the upper surface 4 of the vehicle interior part 2 is placed below the dispenser 31. Arrange (see FIG. 7). Here, the gap between the tip of the droplet supply nozzle 32 in the dispenser 31 and the upper surface 4 of the vehicle interior part 2 is held at a constant interval (for example, 3 mm to 20 mm).

  Thereafter, the CPU 21 drives the dispenser 31 based on the pattern data to cause the droplet L2 of the paint to drop from the droplet supply nozzle 32. At this time, the CPU 21 drives the robot 14 to move the vehicle interior component 2 in the horizontal direction (FIG. 7) while keeping the gap between the tip of the droplet supply nozzle 32 and the upper surface 4 of the vehicle interior component 2 constant. In two directions. FIG. 8 shows an example of the application route P1 of the droplet L2 applied to the upper surface 4 of the vehicle interior part 2 by the two-dimensional movement of the robot 14. As shown in FIG. 8, with the movement of the vehicle interior part 2 by the robot 14, the droplet L <b> 2 is dropped on the entire upper surface 4 of the vehicle interior part 2 and the upper surface 4 is painted. Then, after the coating of the entire upper surface 4 is completed, the CPU 21 temporarily stops the dropping of the droplet L2 from the droplet supply nozzle 32.

  Next, the CPU 21 changes the posture of the vehicle interior component 2 by driving the robot 14 so that the side surface 5 of the vehicle interior component 2 faces the dispenser 31, as shown in FIG. Change step). In addition, the robot 14 adjusts the gap so that the gap between the tip of the droplet supply nozzle 32 and the side surface 5 is maintained at a constant interval simultaneously with the change in the attitude of the vehicle interior part 2. Then, after the posture of the vehicle interior part 2 is changed, the CPU 21 drives the dispenser 31 based on the shape data and the pattern data to drop the coating liquid droplet L2 from the liquid supply nozzle 32 (dropping step). At this time, the CPU 21 drives the robot 14 to move the vehicle interior part 2 two-dimensionally in the horizontal direction. Here, as shown in FIG. 9, the vehicle interior component 2 is two-dimensionally arranged in the width and length directions (X direction and Y direction in FIG. 9) according to the width and length of the side surface 5. Moved. As a result, the coating liquid droplet L2 is applied to the side surface 5 of the vehicle interior part 2, and the side surface 5 is painted. Then, when the entire side surface 5 is painted, the CPU 21 temporarily stops the dropping of the droplet L2 from the droplet supply nozzle 32. Similarly, the side faces 5 are painted on the remaining three side faces 5 by repeating the posture changing step and the dropping step described above.

  Further, the CPU 21 drives the robot 14 so that the inclined surface 6 at the intersection of the upper surface 4 and the side surface 5 in the vehicle interior part 2 faces the dispenser 31 as shown in FIG. The posture of the interior part 2 is changed (posture changing step). In addition, the robot 14 adjusts the gap so that the gap between the tip of the droplet supply nozzle 32 and the inclined surface 6 is maintained at a constant interval simultaneously with the change in the attitude of the vehicle interior part 2. Then, after the posture of the vehicle interior part 2 is changed, the CPU 21 drives the dispenser 31 to drop the paint droplet L2 from the droplet supply nozzle 32 (dropping step). At this time, the CPU 21 drives the robot 14 to move the vehicle interior component 2 two-dimensionally along the inclined surface 6. Here, the vehicle interior component 2 is moved two-dimensionally in the direction of the width and length (X direction and Y direction in FIG. 10) according to the width and length of the inclined surface 6. Thereby, the coating liquid droplet L2 is applied to the inclined surface 6 of the vehicle interior part 2, and the inclined surface 6 is painted. Then, when the entire inclined surface 6 is painted, the CPU 21 temporarily stops the dropping of the droplet L2 from the droplet supply nozzle 32. Similarly, the inclined surfaces 6 are painted on the remaining three inclined surfaces 6 by repeating the above-described posture changing step and dropping step.

  Through the above steps, a coating film of a predetermined color is formed on the entire surface (the upper surface 4, the side surface 5, and the inclined surface 6) of the vehicle interior part 2.

Therefore, even if the decoration device 1A of the present embodiment is used, the same effect as that of the first embodiment can be obtained. Further, in the decoration device 1A of the present embodiment, the dispenser 31 is provided with a droplet supply nozzle 32 having a large diameter. Accordingly, the droplet L2 of the highly viscous paint or metallic paint can be reliably dropped from the droplet supply nozzle 32 without clogging.
[Third Embodiment]

  Next, a third embodiment of the present invention will be described with reference to the drawings.

  As shown in FIG. 11, the decoration device 1 </ b> B of the present embodiment is different from the above-described embodiments in that the inkjet head 11 and the dispenser 31 are provided and an ultraviolet lamp 37 (UV irradiation means) is provided. ing.

  Specifically, in the decoration device 1B of the present embodiment, the inkjet head 11 is fixed on the right side and the dispenser 31 is fixed on the left side above the device. An ultraviolet lamp 37 is provided in the vicinity of the droplet supply nozzle 17 in the inkjet head 11 (both sides of the inkjet head 11).

  In the decorating device 1B of the present embodiment, each cartridge 18 of the droplet supply device 12 connected to the inkjet head 11 is filled with a plurality of colors of ultraviolet curable ink corresponding to the pattern to be drawn. It is filled with UV curable clear paint. The ink and clear paint are supplied to each droplet supply nozzle 17 of the inkjet head 11. The cartridge 34 of the droplet supply device 33 connected to the dispenser 31 is filled with metallic paint, and the paint is supplied to the droplet supply nozzle 32 of the dispenser 31.

  The diameter of the droplet supply nozzle 32 of the dispenser 31 is larger than the diameter of each droplet supply nozzle 17 of the inkjet head 11. That is, each droplet supply nozzle 17 of the inkjet head 11 has a small diameter. For this reason, the ultraviolet curable clear paint supplied to each droplet supply nozzle 17 of the inkjet head 11 is a paint having a low viscosity. Further, since the droplet supply nozzle 32 of the dispenser 31 has a large diameter, the droplet L2 can be dropped without clogging the metallic paint.

  Next, the manufacturing method of the vehicle interior component 2 using the decoration device 1B of the present embodiment will be described.

  In the decoration device 1 </ b> B of the present embodiment, the fixing jig 13 is moved by driving the robot 14, and the vehicle interior part 2 is disposed below the inkjet head 11. Thereafter, similarly to the first embodiment, by performing the dropping step and the posture changing step, the droplets L1 of the ultraviolet curable ink are dropped from each droplet supply nozzle 17 of the inkjet head 11, and the vehicle A pattern of a predetermined pattern is drawn on the upper surface 4 of the interior part 2 for use. Further, in the present embodiment, ultraviolet rays are irradiated from the ultraviolet lamp 37 to the ultraviolet curable ink of each color applied to the upper surface 4 of the vehicle interior part 2. As a result, the ink applied to the upper surface 4 of the vehicle interior part 2 is quickly cured. Thereafter, a dropping step is performed, and a clear paint is applied to the upper surface 4 of the vehicle interior part 2 by dropping a clear paint droplet from a predetermined droplet supply nozzle 17 of the inkjet head 11. Further, the clear paint is cured by irradiating the clear paint applied to the upper surface 4 of the vehicle interior part 2 with ultraviolet rays from the ultraviolet lamp 37. As a result, a clear coat layer is formed on the upper surface 4 of the vehicle interior part 2.

  After the clear coat layer is formed, the fixing jig 13 is moved by driving the robot 14, and the vehicle interior part 2 is disposed below the dispenser 31. Thereafter, similarly to the second embodiment, a metallic paint is applied to the side surface 5 and the inclined surface 6 of the vehicle interior part 2 by performing a dropping step and a posture changing step. Then, the metallic paint of the side surface 5 and the inclined surface 6 is dried through a predetermined drying process. Thus, the manufacturing process of the vehicle interior part 2 is completed.

  Therefore, even if it uses the decorating apparatus 1B of this Embodiment, the effect similar to said each embodiment can be acquired. In addition, in the decoration device 1B of the present embodiment, the ultraviolet lamp 37 is provided, and the ultraviolet curable ink applied from the inkjet head 11 to the upper surface 4 of the vehicle interior part 2 can be quickly cured. it can. Then, after the ink is cured, the clear paint droplets are dropped from the droplet supply nozzle 17 of the inkjet head 11 so that the clear paint for protecting the pattern can be quickly applied to the component surface 4. In this way, the clear coat layer can be reliably formed without bleeding of the pattern ink. Furthermore, if the decoration apparatus 1B of this Embodiment is used, in addition to being able to rapidly form a pattern and a clear coat layer on the upper surface 4 of the vehicle interior part 2, a metallic coating film is quickly applied to the side surface 5 and the inclined surface 5. Can be formed. Further, in this case, since the metallic coating film is formed on the side surface 5 and the inclined surface 5, it is possible to manufacture the vehicle interior part 2 having a texture different from that in the case where the pattern is drawn on the entire part surfaces 4 to 6. .

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

  In the decoration devices 1, 1 </ b> A, 1 </ b> B of the above embodiments, the gap between the nozzle tip and the surface of the vehicle interior part 2 (the upper surface 4, the side surface 5, and the inclined surface 6) is predetermined by the arm 14 a of the robot 14. Although the gap adjustment is performed so as to be the interval, it is not limited to this. You may provide the height adjustment apparatus which moves the inkjet head 11 and the dispenser 31 to a perpendicular direction. FIG. 12 shows a specific example thereof. In the decoration device 1 </ b> C of FIG. 12, the dispenser 31 is provided with a height adjustment device 40. Although not shown in FIG. 12, the decoration device 1 </ b> C includes the robot 14 in the same manner as the decoration device 1 </ b> A of the second embodiment. In the posture changing step, the posture of the vehicle interior part 2 is changed by the robot 14 and, at the same time, the dispenser 31 is moved in the vertical direction (Z direction in FIG. 12) by the height adjusting device 40. As a result, the gap adjustment between the nozzle tip and the surfaces 4 to 6 of the vehicle interior part 2 is performed. Note that the decoration device 1 </ b> C may be configured such that the gap between the nozzle tip and the component surface is adjusted by both the height adjustment device 40 and the robot 14. Even in this case, the droplet L2 dropped from the droplet supply nozzle 32 can be uniformly applied to the surfaces 4 to 6 of the vehicle interior part 2. Therefore, even if it uses 1C of decorating apparatuses, the surface 4-6 of the vehicle interior component 2 can add the decoration with high designability without application unevenness.

  In the decoration devices 1, 1 </ b> A, 1 </ b> B of the above embodiments, the droplets L <b> 1, L <b> 2 are dropped from the droplet supply nozzles 17, 32 in the dropping step, and the vehicle interior part 2 is horizontally moved by the robot 14. Although it moved two-dimensionally and added decoration to the surfaces 4-6 of the interior component 2 for vehicles, it is not limited to this. For example, the inkjet head 11 and the dispenser 31 may be mounted on a moving device such as an XY stage, and the inkjet head 11 and the dispenser 31 may be moved in the horizontal direction by the moving device. In this case, the robot 14 performs posture change and gap adjustment of the vehicle interior part 2. Then, after the posture change of the vehicle interior part 2 and the gap adjustment by the robot 14, a dropping step is performed to drop ink and paint droplets L1 and L2 from the droplet supply nozzles 17 and 32 and drive the moving device. Then, the droplet supply nozzles 17 and 32 are moved in the horizontal direction. When the nozzle is moved in the dropping step, the droplet supply nozzles 17 and 32 are moved with the nozzle tip always directed downward without changing the posture of the droplet supply nozzles 17 and 32. Even in this way, the liquid droplets L1 and L2 can be applied to the surfaces 4 to 6 of the vehicle interior part 2 to add decoration.

  -In the decorating device 1B of the third embodiment, for example, the arm 14a of the robot 14 may be short, and the moving distance of the vehicle interior part 2 between the inkjet head 11 and the dispenser 31 may not be sufficiently secured. It is done. In such a case, the robot 14 is mounted on a moving device (not shown), and after the droplet L1 is applied by the inkjet head 11, the robot 14 is moved in the horizontal direction by the moving device, and the vehicle is placed below the dispenser 31. You may comprise so that the interior component 2 for vehicles may be arrange | positioned. Further, a moving device for moving the inkjet head 11 in the horizontal direction and a moving device for moving the dispenser 31 in the horizontal direction are provided, and the inkjet head 11 and the dispenser 31 are arranged above the vehicle interior part 2 by these moving devices. It is good also as a structure.

  In the decorating device 1B of the third embodiment, UV curable ink or clear paint is applied from each droplet supply nozzle 17 of the inkjet head 11 and metallic paint is applied from the droplet supply nozzle 32 of the dispenser 31. Although it was comprised so that it might apply | coat, it is not limited to this. For example, in the decoration device 1B, a UV curable ink is applied from each droplet supply nozzle 17 of the inkjet head 11, and a dedicated inkjet head 11 and dispenser 31 for applying a clear paint are separately prepared. Also good. Further, in the decoration device 1B, the same paint or ink may be applied by the droplet supply nozzle 17 of the inkjet head 11 and the droplet supply nozzle 32 of the dispenser 31. In this case, for example, droplets are applied from the respective droplet supply nozzles 17 of the inkjet head 11 to the flat surface (the upper surface 4 and the side surface 5) of the vehicle interior component 2, and the curved surface (the inclined surface 6) of the vehicle interior component 2 is applied. ) May be applied from the droplet supply nozzle 32 of the dispenser 31.

  In the decoration devices 1A and 1B of the second embodiment and the third embodiment, one droplet supply nozzle 32 is provided in the dispenser 31, but a plurality of droplet supply nozzles 32 are provided. Also good. In this case, a different color paint or ink may be applied from each droplet supply nozzle 32.

  The decoration devices 1, 1 </ b> A, 1 </ b> B of the above embodiments are not limited to those that draw a pattern on the entire surface of the component surfaces 4 to 6, and the pattern is partially drawn on the component surfaces 4 to 6. You may make it do. Specifically, for example, metallic paint may be applied only to the outer edge portion of the upper surface 4, or a pattern may be drawn only in the central portion.

  The decoration devices 1, 1 </ b> A, 1 </ b> B of the above embodiments may further include a laser irradiation device for scanning the laser irradiation point and drawing a pattern on the component surfaces 4 to 6. A laser irradiation apparatus is arrange | positioned in the position which adjoins the inkjet head 11 or the dispenser 31, for example in the apparatus upper part. In this decorating device, after the coating film is formed on the component surfaces 4 to 6 by the inkjet head 11 or the dispenser 31, the vehicle interior component 2 is disposed below the laser irradiation device by the robot 14. Simultaneously with the arrangement, the posture of the vehicle interior component 2 is changed so that the surface (for example, the upper surface 4) on which laser drawing is performed in the vehicle interior component 2 is opposed to the laser irradiation device. Thereafter, a laser is irradiated from the laser irradiation device to draw a pattern on the component surface 4. If it does in this way, in addition to the pattern by a paint, the pattern by laser drawing can be added to the upper surface 4 grade | etc., Of the vehicle interior component 2, and the design property of the vehicle interior component 2 can be improved. Furthermore, the posture change of the vehicle interior component 2 during painting and the posture change of the vehicle interior component 2 during laser drawing can be performed using the same robot 14. For this reason, compared with the case where an attitude | position change apparatus is provided separately, apparatus cost can be restrained low.

  In the decoration devices 1, 1 </ b> A, 1 </ b> B of the above embodiments, the posture change and gap adjustment of the vehicle interior part 2 are performed by the robot 14, but are not limited to this. You may comprise a decorating apparatus so that the attitude | position change and gap adjustment of the vehicle interior component 2 may be performed using the movable stage which can move to the X direction of a horizontal direction, a Y direction, and the Z direction of a perpendicular direction.

  In the decoration devices 1, 1 </ b> A, 1 </ b> B of the above embodiments, a certain amount of droplets L <b> 1, L <b> 2 is dropped from the droplet supply nozzles 17, 32. The drop amount of the droplets L1 and L2 may be adjusted according to the above. In this case, the moving speed of the vehicle interior part 2 by the robot 14 may be adjusted according to the amount of droplets L1 and L2. In this way, even when the surface of the vehicle interior part 2 has a complicated shape or the pattern pattern is complicated, it is possible to accurately draw the pattern on the part surface.

  In the decoration devices 1, 1 </ b> A, 1 </ b> B of the above embodiments, the decoration is added to the surface of the vehicle interior part 2 as a decoration part, but the present invention is not limited to this, and home appliances Or you may make it add decoration to the surface of components, such as furniture.

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

  (1) An apparatus for producing a decorative part, characterized in that in any one of means 4 to 7, an inkjet head provided with a plurality of the droplet supply nozzles is provided.

  (2) An apparatus for manufacturing a decorative part, characterized in that in any one of the means 4 to 7, a dispenser provided with a plurality or one of the droplet supply nozzles is provided.

  (3) In the technical idea (1) or (2), the control unit drops the droplets among the plurality of droplet supply nozzles according to the shape of the part surface or the pattern pattern of the decoration. An apparatus for manufacturing a decorative part, wherein a nozzle is selected, and droplets are applied to the surface of the part from each selected nozzle.

  (4) In any one of the means 4 to 7, the control means is based on the drop amount of the droplets by the droplet supply nozzle and the posture changing means in accordance with the shape of the part surface or the decorative pattern. An apparatus for producing a decorative part, wherein at least one of the moving speed of the decorative part is controlled.

  (5) In any one of the means 4 to 7, the droplet is made of an ultraviolet curable paint or ink, and is provided in the vicinity of the droplet supply nozzle and applied to the paint or ink applied to the surface of the component. An apparatus for producing a decorative part, characterized in that it comprises UV irradiation means for irradiating the surface.

  (6) Any one of the means 4 to 7 includes an inkjet head provided with a plurality of the droplet supply nozzles and a dispenser provided with a plurality or one of the droplet supply nozzles. An apparatus for manufacturing a decorative part, wherein the droplet supply nozzle of the dispenser has a larger aperture than the droplet supply nozzle.

  (7) In the technical idea (6), a high-viscosity paint or metallic paint having a relatively high viscosity is applied from the droplet supply nozzle of the dispenser, and the viscosity is lower than that of the high-viscosity paint or metallic paint. Is applied from the droplet supply nozzle of the inkjet head.

  (8) In the technical idea (6), the droplets are applied from the droplet supply nozzle of the inkjet head to the flat surface of the component surface, and the droplet supply of the dispenser is applied to the curved surface of the component surface. An apparatus for producing a decorative part, wherein the droplet is applied from a nozzle.

  (9) In any one of means 4 to 7, the apparatus further comprises laser irradiation means for scanning a laser irradiation point to draw a pattern on the surface of the part, and the attitude changing means changes the attitude of the decorative part. Then, the laser irradiation means irradiates the laser so as to draw a pattern on the surface of the component.

  (10) The decorative part manufacturing apparatus according to any one of the means 4 to 7, further comprising a moving means for moving the position of the droplet supply nozzle two-dimensionally in the horizontal direction.

  (11) In any one of the means 4 to 7, the decoration is a pattern drawn in color, and the droplet supply nozzle has a dedicated nozzle for each of a plurality of colors. manufacturing device.

  (12) In any one of the means 4 to 7, the posture changing means is a robot that can move the decorative part in the vertical direction, the horizontal direction, and the rotation direction.

  (13) In any one of the means 4 to 7, the decorative part manufacturing apparatus is characterized in that the decorative part is a vehicle interior part.

DESCRIPTION OF SYMBOLS 1,1A, 1B, 1C ... Decorating apparatus as a manufacturing apparatus for decorative parts 2 ... Interior parts for vehicles as decorative parts 4 ... Top face as part surface 5 ... Side face as part surface 6 ... As part surface Inclined surface 14 ... Robot 17 as posture changing means 17, 32 ... Droplet supply nozzle 21 ... CPU as control means
40 ... Height adjusting device as height adjusting means L1, L2 ... Droplet

Claims (10)

An apparatus for producing the decorative part by adding decoration to the surface of the decorative part having a three-dimensional shape,
An inkjet head provided with a plurality of first droplet supply nozzles for dropping droplets in the vertical drop direction;
A dispenser in which a second droplet supply nozzle for dropping the droplet in the vertical drop direction is provided, and the diameter of the second droplet supply nozzle is set larger than the diameter of the first droplet supply nozzle When,
In a state where the droplet supply nozzle and the component surface are not in contact with each other, the vertical drop direction of the droplet and the normal direction on the component surface to which the droplet is applied coincide with each other. Posture changing means for changing the posture;
An apparatus for manufacturing a decorative part, comprising: a control unit that controls the output of the droplet from the droplet supply nozzle and controls the driving of the posture changing unit.   A droplet of a highly viscous paint or metallic paint having a relatively high viscosity is dropped from the second droplet supply nozzle of the dispenser and applied, and the viscosity is relatively lower than that of the highly viscous paint or the metallic paint. The apparatus for producing a decorative part according to claim 1, wherein a droplet of a low-viscosity coating material is dropped and applied from the first droplet supply nozzle of the inkjet head.   Liquid droplets are dropped from the first droplet supply nozzle of the inkjet head onto the flat surface of the component surface, and liquid is applied to the curved surface of the component surface from the second droplet supply nozzle of the dispenser. The apparatus for producing a decorative part according to claim 1, wherein a drop is dropped and applied.   The droplets are made of UV curable paint or ink,
  Provided in the vicinity of the droplet supply nozzle, provided with UV irradiation means for irradiating the paint or ink applied to the component surface with ultraviolet rays
The apparatus for manufacturing a decorative part according to any one of claims 1 to 3, characterized in that: It said attitude changing means, any one of claims 1 to 4, characterized in that it has a control function to keep the gap between the tip and the component surface of the droplet supply nozzles at predetermined intervals Equipment for producing decorative parts as described in 1. In order to keep the gap between the tip and the component surface of the droplet supply nozzles at predetermined intervals, according to claim 1 to 5, further comprising a height adjusting means for moving the droplet supply nozzles vertically The apparatus for manufacturing a decorative part according to any one of the above. The attitude changing means, the decorative addition to components ability to change the attitude, more of claims 1 to 6, characterized in that it has a function of moving the position of the decorative component in the horizontal direction The manufacturing apparatus of the decorative part of Claim 1.   A method for manufacturing a decorative part, in which a decoration is applied by dropping droplets from a droplet supply nozzle onto the surface of a decorative part having a three-dimensional shape using the apparatus according to any one of claims 1 to 7. Because
  In a state where the droplet supply nozzle and the component surface are not in contact with each other, the vertical drop direction of the droplet and the normal direction on the component surface to which the droplet is applied coincide with each other. A posture changing step for changing the posture;
  A dropping step of dropping droplets downward from the droplet supply nozzle while changing the posture of the decorative part or after changing the posture;
The manufacturing method of the decorative component characterized by including.   9. The decorative component according to claim 8, wherein in the posture changing step, the posture of the decorative component is changed while maintaining a gap between the tip of the droplet supply nozzle and the surface of the component at a constant interval. Manufacturing method.   A plurality of the droplet supply nozzles are arranged,
  In the dropping step, of the plurality of droplet supply nozzles, a droplet is dropped from the droplet supply nozzle in which a gap between the tip of the droplet supply nozzle and the component surface is within a predetermined range, 9. The method for manufacturing a decorative part according to claim 8, wherein the dropping of droplets from the droplet supply nozzle whose gap is outside the predetermined range is stopped.

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