Manufacturing method for molded objects, molding apparatus, and molding system

Abstract

The present invention provides a method for manufacturing a molded object capable of forming curved shapes, a molding apparatus, and a molding system. [Solution] The present method for manufacturing a molded object is a method for manufacturing a molded object by deforming a substrate, and includes the steps of: discharging a liquid from a forming unit to form a pattern on the substrate; and stretching the substrate on which the pattern has been formed from a stretching unit, wherein the stretching rate of part or the whole of the substrate is controlled by controlling the pattern formed on the substrate by the forming unit.

Claims

1. A method for manufacturing a molded object by deforming a substrate, The forming unit dispenses a liquid to form a pattern on the substrate, The process includes a step of stretching or contracting the substrate on which the pattern is formed using an expandable / contractible part, A method for manufacturing a molded object, comprising controlling the expansion and contraction rate of a part or the whole of the substrate by controlling the pattern formed on the substrate by the forming unit.

2. The expansion / contraction unit heats the substrate on which the pattern is formed, The method for manufacturing a molded object according to claim 1, wherein the thermal shrinkage rate of a portion or the entire substrate is controlled by controlling the pattern formed on the substrate by the forming unit.

3. The aforementioned liquid is UV-curable, The step of forming the aforementioned pattern is: The process involves discharging the liquid using a head to apply the liquid to the substrate, A method for manufacturing a molded object according to claim 1 or claim 2, comprising the step of irradiating the liquid applied to the substrate by the head with ultraviolet light by an irradiation unit.

4. The aforementioned pattern is formed by including a plurality of dots, The method for manufacturing a molded object according to claim 1 or claim 2, wherein the forming part controls at least one of the spacing between adjacent dots and the shape of the dots.

5. The forming portion is, in the pattern formed on the substrate, The length in a predetermined direction of the arrangement region in which the liquid is placed, A method for manufacturing a molded object according to claim 4, wherein the ratio of the length in the predetermined direction of the non-placement region where the liquid is not formed is controlled.

6. The method for manufacturing a molded object according to claim 5, wherein the forming part controls the ratio according to one of two linear functions, logarithmic functions, or polynomials of degree two or higher, each having a different slope.

7. The formed portion is The pattern is formed based on the image data. A method for manufacturing a molded object according to claim 1 or claim 2, wherein the pattern is controlled according to the pixel values ​​in the image data.

8. The method for manufacturing a molded object according to claim 1 or claim 2, wherein the substrate is a sheet or film having thermoplastic properties and a higher thermal shrinkage rate than the cured liquid.

9. The substrate includes an upper surface and a lower surface. The formed portion is The pattern is formed on either the upper surface or the lower surface of the substrate, or The method for manufacturing a molded object according to claim 8, wherein the pattern is formed on either the upper surface or the lower surface of the substrate, and the liquid is applied to the entire other surface.

10. The substrate includes an upper surface and a lower surface. The forming section forms the pattern on the upper surface and the lower surface of the substrate, respectively. The method for manufacturing a molded object according to claim 8, wherein the pattern formed on the upper surface of the substrate overlaps, in a top view, with the pattern formed on the lower surface of the substrate.

11. The method for manufacturing a molded object according to claim 8, wherein the forming part laminates two or more layers of the liquid onto the substrate.

12. A molding apparatus that deforms a substrate to create a shape, A forming unit that discharges liquid to form a pattern on the substrate, It has a stretch-and-swell portion that stretches and contracts the substrate on which the pattern has been formed by the forming portion, A molding apparatus that controls the expansion and contraction rate of a part or the whole of a substrate by controlling the pattern formed on the substrate by the forming unit.

13. The aforementioned liquid is UV-curable, The formed portion is A head that dispenses the aforementioned liquid and applies the liquid to the substrate, The molding apparatus according to claim 12, further comprising an irradiation unit for irradiating ultraviolet light onto the liquid applied to the substrate by the head.

14. A molding system that creates shapes by deforming a substrate, A liquid dispensing device that dispenses liquid to form a pattern on the substrate, The device comprises a liquid dispensing device that expands and contracts the substrate on which the pattern has been formed, A molding system that controls the expansion or contraction rate of a part or the whole of a substrate by controlling the pattern formed on the substrate by the liquid dispensing device.

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