Foil stamping mold, printing device, and vehicle interior part

Abstract

To provide a foil stamping printing technique capable of efficiently performing foil stamping even though it is small.SOLUTION: A foil stamping mold (20A) is pressed against a foil (12) placed on a top surface of a printing object (11), thereby transferring the foil (12) while forming a stitch pattern (11a) on the surface of the printing object (11). The foil stamping mold (20A) has a rotatable base (21) and a pattern shape part (22) that is provided on an outer peripheral surface of the base (21) and corresponds to the stitch pattern (11a).SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] The present invention relates to a foil stamping die used for foil stamping, a printing device, and a vehicle interior part using the foil stamping die. [Background technology]

[0002] Patent Document 1 discloses that a pattern with projections and recesses, such as a stitched pattern, is formed by pressing a mold against a surface material, such as an automobile interior material. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2020-176341 Summary of the Invention [Problem to be solved by the invention]

[0004] It is conceivable to apply a pattern continuously by raising and lowering a mold such as that disclosed in Patent Document 1 multiple times toward the printing object. In this case, the printing object and / or the mold must be moved to a precise position during the work. The work must be repeated while maintaining accurate positioning, which may reduce work efficiency. On the other hand, if one attempts to apply a pattern in fewer steps, it is conceivable to prepare a mold that can accommodate a wider range of patterns. In this case, the mold becomes larger and the shape of the printing object is limited. The same can be said for foil stamping, in which foil is placed and transferred onto the printing object. It is desirable to provide a foil stamping printing mold that is compact yet capable of efficiently performing foil stamping.

[0005] An object of the present disclosure is to provide a foil stamping printing technology that is compact yet capable of efficiently performing foil stamping. [Means for solving the problem]

[0006] According to the present disclosure, by pressing the foil placed on the upper surface of the printing object against the foil, the foil is transferred onto the surface of the printing object while forming a stitch pattern; A foil stamping die is provided, which has a rotatable base and a pattern shape portion that is provided on the outer peripheral surface of the base and corresponds to the stitch pattern. [Effects of the Invention]

[0007] According to the present disclosure, it is possible to provide a foil stamping printing technique that is compact yet capable of efficiently performing foil stamping. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 2 is a perspective view illustrating the main parts of a foil stamping die according to Reference Example 1. [Figure 2] 2 is a diagram illustrating foil stamping using the foil stamping die shown in FIG. 1. FIG. [Figure 3] FIG. 2 is a bottom view of FIG. 1. [Figure 4] 4A is a cross-sectional view taken along line 4A-4A in FIG. 3, FIG. 4B is a diagram illustrating the preparation step, and FIG. 4C is a diagram illustrating the foil stamping printing step. [Figure 5] FIG. 5A is a diagram for explaining the problems of the comparative example, and FIG. 5B is a diagram for explaining the effects of the reference example 1. In FIG. [Figure 6] FIG. 1 is a perspective view of a foil stamping mold according to an embodiment. [Figure 7] 7 is a diagram illustrating foil stamping using the foil stamping die shown in FIG. 6. FIG. [Figure 8] FIG. 10 is a cross-sectional view of a foil stamping mold according to Reference Example 2. DETAILED DESCRIPTION OF THE INVENTION

[0009] An embodiment of the present invention will be described below with reference to the accompanying drawings.

[0010] <Reference example 1> Prior to describing the embodiments, Reference Example 1, which is the basis of the embodiments, will be described with reference to the drawings.

[0011] See Figure 1. The foil stamping printing mold 20 is used in a transfer device that performs transfer by manually moving it up and down, for example. The foil stamping printing mold 20 is provided in the transfer device so that it can be raised and lowered. In addition to the foil stamping printing mold 20, the transfer device may be provided with a heater for heating the foil stamping printing mold 20, an operating lever for raising and lowering the foil stamping printing mold 20, etc.

[0012] Also see Figure 2. The foil stamping die 20 is made up of one pattern shaped portion 22 and protruding portions 23, 23 formed on both ends of the pattern shaped portion 22 so as to sandwich the pattern shaped portion 22 therebetween.

[0013] The pattern forming portion 22 is pressed against the printing object 11 and the foil, and forms a predetermined pattern on the surface of the printing object 11 and transfers the foil.

[0014] Although details will be described later, the foil is a sheet that is sandwiched between the foil stamping die 20 and the printing object 11, and the color is transferred to the printing object 11.

[0015] By pressing the foil stamping printing mold 20, the surface of the printing object 11 is shaped to conform to the pattern shape portion 22 and the protrusions 23, and the foil is transferred to color the surface of the printing object 11. For example, an uneven (three-dimensional) stitch pattern 11a (pattern 11a) is formed on the surface of the printing object 11. By repeatedly moving the printing object 11 relative to the foil stamping printing mold 20 and lowering the foil stamping printing mold 20, the stitch pattern 11a is formed in a straight line.

[0016] The printing object 11 is, for example, a vehicle interior part. Hereinafter, the printing object 11 may be referred to as the vehicle interior part 11. More specifically, an example of the vehicle interior part 11 is the surface of an instrument panel. By adding a stitching pattern 11a to the surface of the instrument panel, the vehicle interior part 11 can be made to have a more luxurious feel.

[0017] 2 and 3, the tip of the patterned portion 22 is formed in a concave shape that follows the stitch pattern 11a. The bottom of the concave portion has diagonal lines that resemble the pattern of the sewing thread.

[0018] Refer to Figure 4A. The direction corresponding to the extension direction of the stitch pattern is the longitudinal direction, and the direction perpendicular to the longitudinal direction is the width direction. Figure 4A shows a cross section in the width direction. The tip of patterned portion 22 is formed in a generally U-shaped concave shape.

[0019] See Fig. 3. The edge 22a of the pattern portion 22 is formed in a cloud shape, and the thickness T1 is uniform over the entire area. The pattern portion 22 corresponds to one stitch pattern 11a (see Fig. 2).

[0020] The protruding portion 23 is formed at the longitudinal end of the pattern-shaped portion 22, and protrudes higher than the pattern-shaped portion 22. Furthermore, the widthwise length L1 of the protruding portion 23 is shorter than the widthwise length L2 of the pattern-shaped portion 22. The protruding portion 23 is formed so as to fit within the region between adjacent pattern-shaped portions 22 without protruding therefrom.

[0021] Also see Figure 2. When stitch patterns 11a are formed continuously, the areas of the printing object 11 corresponding to the spaces between the stitch patterns 11a are formed by protrusions 23. By creating a deeper depression with the protrusions 23, the color of the areas between the stitch patterns 11a becomes less visible from the surface. This represents the areas between the stitches.

[0022] Next, a method for manufacturing the vehicle interior part 11 will be described.

[0023] 4B, first, the vehicle interior part 11 before printing, the foil 12, and the foil stamping die 20 are prepared (preparation step), and the foil 12 is placed on the upper surface of the vehicle interior part 11 (placement step).

[0024] 5C. Next, the heated foil stamping mold 20 is pressed against the vehicle interior part 11 (foil stamping step), thereby forming the shape of the surface of the vehicle interior part 11 into a shape that conforms to the patterned portion 22 and transferring the foil 12. This completes the vehicle interior part 11.

[0025] Please refer to FIG. 5A. FIG. 5A shows a foil stamping die 120 according to a comparative example. In the foil stamping die 120 according to the comparative example, the inside of the pattern-shaped portion 122 is shaped to follow the uneven pattern, while the outside is formed in a substantially rectangular shape. As a result, the thickness of the edge 122a varies. For example, the thickness of the pattern-shaped portion 122 at the portion where the pattern narrows is T2. This is thicker than the thickness T1 at the portion where the edge 122a is thinnest.

[0026] When the foil 112 is transferred to the printing object 111, the foil 112 is pushed out by the foil stamping mold 120, and a portion of the foil 112 adheres to an area beyond the edge 122a of the uneven pattern portion 122 (see symbol 112a).

[0027] Please refer to Figure 5B. Figure 5B shows a foil stamping die 20 according to the embodiment. In the foil stamping die 20 according to the embodiment, the pattern-shaped portion 22 has an edge 22a formed to the same thickness T1 over the entire range. When the foil stamping die 20 is used, the foil 12 is attached at a position T1 away from the end of the pattern-shaped portion 22 (see reference symbol 12a).

[0028] <Example> Next, an embodiment will be described with reference to the drawings.

[0029] 6 shows a foil printing die 20A according to the embodiment. The foil printing die 20A according to the embodiment is rotatably mounted in a printing device for foil printing (hot stamping), for example. The same reference numerals are used for parts common to Reference Example 1, and detailed descriptions thereof will be omitted.

[0030] Also see Figure 7. The foil stamping die 20A has a substantially O-shaped base 21 on the outer peripheral surface of which pattern-shaped portions 22 to be pressed against the printing object 11 and protruding portions 23 are alternately provided.

[0031] In addition to the foil stamping printing mold 20A, the printing device on which the foil stamping printing mold 20A is mounted may be provided with a transport roller for transporting the printing object 11, a transport roller for transporting foil between the foil stamping printing mold 20 and the printing object 11, a heater for heating the foil stamping printing mold 20, etc.

[0032] <Reference example 2> Next, a second reference example will be described with reference to the drawings.

[0033] 8 shows a cross-sectional configuration of a foil stamping die 20B according to Reference Example 2. In the foil stamping die 20B, an edge 22Ba of a pattern-shaped portion 22B widens toward the tip.

[0034] The foil stamping die 20B in which the edge 22Ba of the pattern shape portion 22B widens toward the tip may be rotatably provided in a printing device, or may be used in a transfer device that is manually moved up and down.

[0035] The above-described method for manufacturing the foil stamping die and the vehicle interior part will be summarized below.

[0036] See Figures 2 and 3. First, by pressing the foil stamping die 20 against the printing object 11 on which the foil has been placed, it is possible to transfer the foil while leaving a concave-convex pattern on the surface of the printing object 11. The foil stamping die 20 has a pattern shape portion 22 which is a portion corresponding to the concave-convex pattern. The edge 22a of the pattern shape portion 22 is formed to the same thickness T1 over the entire range. The same applies to the foil stamping die 20A (see Figure 6) and the foil stamping die 20B (see Figure 8).

[0037] See Figure 5A. As described above, when the foil 112 is transferred to the printing object 111, it is pressed by the foil stamping printing mold 120, and part of the foil 112 adheres to an area beyond the edge of the uneven pattern (see reference numeral 112a). If the foil 112 adheres far beyond the edge of the pattern, the design of the printing object 111 is reduced. When the foil stamping printing mold 120 according to the comparative example is used, the foil 112 adheres to a position T2 away from the pattern at the thickest part of the edge 122a of the foil stamping printing mold 120.

[0038] See Figure 5B. In the foil stamping printing die 20 according to the embodiment, the edge 22a of the pattern shape portion 22 is formed to the same thickness T1 over the entire range. When the foil stamping printing die 20 is used, the foil 12 is attached at a position T1 away from the pattern. Compared to when the foil stamping printing die 120 according to the comparative example is used, the area where the foil 12 is attached can be narrowed. This makes it possible to provide a printing object 11 with a highly designed appearance.

[0039] See Figures 2 and 3. Secondly, in the first foil stamping printing die 20, the pattern 11a is a stitch pattern 11a, and the pattern shape portion 22 corresponds to one stitch. When the direction corresponding to the extension direction of the stitch pattern 11a on the surface of the printing object 11 is defined as the longitudinal direction and the direction perpendicular to the longitudinal direction is defined as the width direction, the pattern shape portion 22 further has a protruding portion 23 at the longitudinal end portion thereof that protrudes higher than the pattern shape portion 22. The width direction length L1 of the protruding portion 23 is shorter than the width direction length L2 of the pattern shape portion 22. The same applies to the foil stamping printing die 20A (see Figure 6) and the foil stamping printing die 20B (see Figure 8).

[0040] The formation of the protrusions 23 allows for an appropriate distance between stitch patterns. In particular, by making this portion deeper than the adjacent portions, foil 12 attached to unintended portions is prevented from appearing on the surface, further enhancing the design.

[0041] Furthermore, by making the widthwise length L1 of the protrusion 23 shorter than the widthwise length L2 of the pattern shape portion 22, the area between the stitch patterns can be made thinner, making the stitch patterns look more like real stitches and improving the design.

[0042] See Figure 8. Thirdly, in the first or second foil stamping die 20B, the edge 22Ba of the pattern portion 22B widens toward the tip. This makes it possible to narrow the area to which the foil adheres, thereby further improving the design of the printing object 11 (see Figure 2B).

[0043] See Fig. 4C. Thirdly, the vehicle interior part 11 is manufactured by performing foil printing using any one of the first to third foil printing dies 20. In other words, the vehicle interior part 11 is manufactured through a foil printing process. Foil printing may also be performed using a foil printing die 20A (see Fig. 6) or a foil printing die 20B (see Fig. 8). This is preferable because it can provide a vehicle interior part 11 with a high-quality design and a luxurious feel.

[0044] Although the foil stamping printing die according to the present invention has been described using an example in which a stitch pattern is transferred to a vehicle interior part, the object to be printed may be something other than a vehicle interior part, and the transferred pattern may be something other than a stitch pattern. In other words, the present invention is not limited to the examples as long as the functions and effects of the present invention are achieved. [Industrial Applicability]

[0045] The foil stamping die of the present invention is suitable for decorating interior parts of a vehicle. [Explanation of symbols]

[0046] 11...printing object (vehicle interior parts), 11a...stitch pattern 12...Foil 20A...Foil stamping mold 21...Base 22...Pattern shape part 23...Protrusion

Claims

1. By pressing the foil onto the surface of the object to be printed, the foil is transferred onto the surface of the object to be printed while forming a stitch pattern; The foil stamping die has a rotatable base and a pattern shape portion that is provided on the outer peripheral surface of the base and corresponds to the stitch pattern.

2. The pattern shape portion corresponds to a stitch pattern for one stitch, When the direction corresponding to the direction in which the stitch pattern extends on the surface of the printing object is defined as the longitudinal direction and the direction perpendicular to the longitudinal direction is defined as the width direction, The patterned portion further has a protruding portion at an end portion in the longitudinal direction thereof, the protruding portion protruding higher than the patterned portion, The foil stamping die according to claim 1 , wherein the patterned portions and the protruding portions are alternately provided on the outer peripheral surface of the base portion.

3. A printing device provided with the foil stamping die according to claim 1, The printing apparatus is provided with a transport roller for transporting the foil and / or a transport roller for transporting the printing object.

4. 4. The printing device according to claim 3, A heater is provided for heating the foil stamping die.

5. Printing is performed using the foil stamping mold according to claim 2, The vehicle interior part has the stitch patterns and portions recessed deeper than the stitch patterns formed alternately.

Images