JP5881004B2 - Mold, Embossing Machine, Embossed Product Manufacturing Method - Google Patents

Description

  The present invention relates to a die for embossing processing having a first plate having a first uneven surface and a second plate having a second uneven surface, an embossing machine having this die, and an embossing The present invention relates to a method for manufacturing an embossed article using a machine.

  Conventionally, the embossing which pressurizes a workpiece (workpiece) between a pair of plates has been used in various fields. Examples of typical stamping processes include molding processes called embossing and debossing processes, foil pressing processes for transferring foil, and processes that simultaneously perform foil pressing and molding. Examples of typical processing objects include sheet-like processing objects such as paper, fiber paper, and resin.

  For example, as disclosed in Patent Document 1, in many cases, an embossing process is performed on a sheet-like object to be processed, and a pattern is applied to the object to be processed by printing or the like. Therefore, it is necessary to position the mold used for the stamping process and the pattern of the workpiece. In Patent Document 1, by providing transparency to at least one of the first plate and the second plate constituting the mold, the workpiece and the plate can be visually positioned.

Registered Utility Model No. 3414782

  By the way, in Patent Document 1, reference is made to the positioning of the mold and the workpiece. However, in the actual stamping process, it is necessary to position the first and second plates forming the mold. For example, when the object to be processed has a certain thickness, such as fiber paper often used in packaging applications, the uneven surface of the first plate and the uneven surface of the second plate are completely It is not configured in a symmetrical shape, and a clearance is formed between the uneven surface of the first plate and the uneven surface of the second plate. In this case, the first plate is positioned with respect to the workpiece, and separately, the second plate is positioned with respect to the workpiece. As a result, the first plate and the second plate are positioned with respect to each other. can do.

  However, such a positioning operation between the first and second plates is based on visual observation, and high accuracy cannot be expected. For this reason, many test objects are damaged by the test processing in the test adjustment before actual production. In addition, the work time for positioning is prolonged. That is, the production yield of the stamped product is lowered and the production efficiency of the stamped product is also deteriorated.

  The present invention has been made in consideration of the above points, and provides a mold capable of easily and accurately positioning between a first plate and a second plate, and a press machine. With the goal. Another object of the present invention is to provide a method for manufacturing an embossed product that can improve yield and production efficiency by easily and accurately positioning between the first plate and the second plate. And

The mold according to the invention is
A mold used for embossing,
A first metal plate having a first irregular surface;
A second plate having a second irregular surface,
The first plate is provided with at least two positioning recesses,
The second plate is provided with at least two positioning projections engageable with the positioning recess of the first plate,
When the positioning convex portion and the positioning concave portion are engaged, the first uneven surface and the second uneven surface are positioned relative to each other at least in the surface direction.

  In the mold according to the present invention, the positioning convex portion may be formed of a resin.

  In the mold according to the present invention, the positioning convex portion may be removable from the second plate.

  In the mold according to the present invention, the positioning convex portion may have a tapered shape that tapers toward the tip.

  In the mold according to the present invention, the positioning recess may be a hole or a hole having a tapered shape that tapers as the distance from the side facing the second surface increases.

The embossing machine according to the present invention is
One or more molds according to the invention as described above;
A first holding member to which the first plate of the mold is attached;
A second holding member to which the second plate of the mold is attached;
A drive mechanism capable of driving the first holding member and the second holding member so as to approach each other and away from each other.

The method of manufacturing the stamped article according to the present invention is as follows:
A method of manufacturing a stamped article using any of the stamping machines according to the present invention described above,
Temporarily fixing the first plate and the second plate in a state in which the positioning convex portion and the positioning concave portion are engaged;
With the first and second plates temporarily fixed, one of the first and second plates is replaced with one of the first holding member and the second holding member corresponding to the one. And the process of attaching,
The drive mechanism causes the first holding member and the second holding member until the other of the first plate and the second plate contacts the other of the first holding member and the second holding member. Moving the other of the first plate and the second plate onto the other of the first holding member and the second holding member;
Attaching the other of the first plate and the second plate to a transferred position on the other of the first holding member and the second holding member;
A workpiece is supplied between the first plate attached to the first holding member and the second plate attached to the second holding member, and the workpiece is embossed and embossed. Manufacturing a product.

  The method for manufacturing a stamped article according to the present invention is a step that is performed before the step of manufacturing the stamped article, and after the first plate and the second plate are separated from the temporarily fixed state. The step of removing the positioning convex portion of the second plate may be further provided.

  According to the present invention, positioning between the first plate and the second plate can be easily and accurately performed. Thereby, the production yield of a stamped article and the production efficiency of a stamped article can be improved.

FIG. 1 is a diagram for explaining an embodiment according to the present invention, and is a schematic diagram showing an overall configuration of a stamping machine. FIG. 2 is a diagram for explaining a method of manufacturing a stamped article using the stamping machine of FIG. FIG. 3 is a cross-sectional view showing an embossed product manufactured by the manufacturing method of FIG. FIG. 4 is a perspective view showing a first version of a mold incorporated in the embossing machine of FIG. FIG. 5 is a perspective view corresponding to FIG. 4 and showing a second version of a mold incorporated in the embossing machine of FIG. FIG. 6 is a cross-sectional view showing a state in which the first plate shown in FIG. 4 and the second plate shown in FIG. 5 are combined. FIG. 7 is a view for explaining a method of attaching the first plate and the second plate to the embossing machine in a state where the first plate and the second plate are positioned. FIG. 8 is a view for explaining a method of attaching the first plate and the second plate to the embossing machine in a state where the first plate and the second plate are positioned. FIG. 9 is a view for explaining a method of attaching the first plate and the second plate to the embossing machine in a state where the first plate and the second plate are positioned. FIG. 10 is a view for explaining a method of attaching the first plate and the second plate to the embossing machine in a state where the first plate and the second plate are positioned. FIG. 11 is a view for explaining a method of attaching the first plate and the second plate to the embossing machine in a state where the first plate and the second plate are positioned.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the drawings attached to the present specification, for the sake of illustration and ease of understanding, the scale, the vertical / horizontal dimension ratio, and the like are appropriately changed and exaggerated from those of the actual product.

  FIGS. 1-11 is a figure for demonstrating one Embodiment by this invention. Among these, FIG. 1 is a figure which shows an embossing machine, FIG. 2 is a figure which shows the manufacturing method of the stamping goods by stamping, and FIG. 3 is a figure which shows an example of the stamping goods manufactured. . 4-6 is a figure for demonstrating an example of the type | mold used for a die pressing process, and FIGS. 7-11 is a 1st version and 2nd version of a type | mold before performing a die pressing process. It is a figure for demonstrating the method of positioning and attaching to an embossing machine.

  As shown in FIG. 1, the stamping machine 10 includes a mold 30 including a first plate 40 and a second plate 45, a first holding member 20 that holds the first plate 40, and a second plate 45 that holds the second plate 45. 2 holding member 25, and drive mechanism 12 which moves the 1st holding member 20 and the 2nd holding member 25 relatively. In the embossing machine shown in FIG. 1, the drive mechanism 12 is configured as a cylinder mechanism connected to the first holding member 20, and can move the first holding member 20 in the vertical direction. On the other hand, the second holding member 25 is placed on a base 14 provided below the drive mechanism 12.

  The drive mechanism 12 drives the first holding member 20 in the vertical direction to bring the first holding member 20 and the second holding member 25 closer to each other, and the first holding member 20 and the second holding member 25 from each other. Can be separated. The first holding member 20 is fixed at a predetermined position of the drive mechanism 12, and the second holding member 25 is fixed at a predetermined position on the base 14. As a result, the first holding member 20 and the second holding member 25 are relatively moved in the vertical direction by the drive mechanism, but are maintained in a predetermined relative positional relationship in the direction perpendicular to the vertical direction.

  As shown in FIG. 1, in this Embodiment, the 1st holding member (1st set board) 20 and the 2nd holding member (2nd set board) 25 are comprised as a plate-shaped member, The first holding member 20 can hold a plurality of first plates 40, and the second holding member 25 can hold a plurality of second plates 45. In the example shown in FIG. 1, five first plates 40 are held by the first holding member 20 and five second plates 45 are held by the second holding member 25. Five molds 30 are attached.

  As shown in FIG. 2, such an embossing machine 10 uses a driving mechanism 12 to press a workpiece (workpiece) 80 between a first plate 40 and a second plate 45. , An apparatus for performing a die pressing process on the workpiece 80. As the stamping process, there is a molding process such as an embossing process that forms a convex pattern on the workpiece 80, a debossing process that forms a concave pattern on the workpiece 80, a foil stamping process that transfers metal foil, and both foil stamping and molding. The foil stamping process etc. which perform are illustrated.

  In the example described here, a forming process for forming a concavo-convex pattern on a workpiece, particularly embossing for forming a convex pattern 90a on a workpiece 80 as shown in FIG. An example in which the embossed product 90 is produced from the workpiece 80 will be described. The sheet-like workpiece 80 to be processed can be composed of, for example, a resin film, paper, fiber paper, or the like. The produced stamped product 90 can be used, for example, as a packaging sheet or packaging box for packaging a product.

  Hereinafter, the mold 30 will be described in more detail. As shown in FIGS. 1 and 2, the mold 30 includes a pair of plates 40 and 45. One of the pair of plates 40 and 45 is made of metal, for example, brass (brass). In the present specification, the first plate 40 is made of metal, that is, the first plate 40 is made of metal. On the other hand, the second plate 45 is not particularly limited to being made of metal, and can be made of, for example, a resin (for example, an epoxy resin). In addition, a material that makes it possible to remove positioning protrusions 48a and 48b of the second plate 45, which will be described later, using a portable small tool without using a machine tool or the like, for example, magnesium Any metal made of aluminum, an alloy thereof, or the like can be suitably used as the material of the second plate 45.

  As shown in FIGS. 2 and 4 to 6, the first plate 40 has a first uneven surface 41 as a surface facing the second plate 45, and the second plate 45 is formed on the first plate 40. It has the 2nd uneven surface 46 as a surface which faces. Since the embossing process is performed by pressurizing the workpiece object 80 between the first irregular surface 41 and the second irregular surface 46, the first embossing process is performed on the workpiece object 80 according to the first embossing process. The uneven surface 41 and the second uneven surface 46 have a corresponding configuration.

  As shown well in FIGS. 4 to 6, in the illustrated example, the mold 30 is configured so that a convex pattern 90 a bordered by the alphabet “D” can be formed on the workpiece 80. Has been. As shown in FIG. 4, the first uneven surface 41 of the first plate 40 is provided with a recess 41 a shaped like an alphabet “D”. On the other hand, as shown in FIG. 5, the second concavo-convex surface 46 of the second plate 45 is provided with a convex portion 46 a shaped like an alphabet “D”. 6 shows a state in which the first plate 40 and the second surface 45 are combined in a section corresponding to the section taken along the line IV-IV in FIG. 4 and the section taken along the line VV in FIG. It is sectional drawing shown.

  In the present embodiment, assuming the case where the object to be processed has a certain thickness, such as fiber paper, for example, as shown in FIG. 6, the inner dimensions of the recess 41a of the first uneven surface 41 Is formed to be slightly larger than the outer dimension of the convex portion 46 a of the second irregular surface 46. That is, when the first plate 40 and the second plate 45 are combined, the gap 31 is formed between the concave portion 41a of the first uneven surface 41 and the convex portion 46a of the second uneven surface 46. become.

  4 and 5, the first uneven surface 41 of the first plate 40 is provided with two positioning concave portions 43 a and 43 b, and the second uneven surface of the second plate 45. 46 is provided with two positioning convex portions 48a and 48b. As shown in FIG. 6, the first positioning convex portion 48a can be engaged with the first positioning concave portion 43a. In particular, in the illustrated example, the first positioning convex portion 48a can be inserted into and fitted into the first positioning concave portion 43a. Yes. Similarly, the second positioning convex portion 48b can be engaged with the second positioning concave portion 43b. In particular, in the illustrated example, the second positioning convex portion 48b can be inserted into and fitted into the second positioning concave portion 43b.

  When the positioning convex portions 48a and 48b engage with the positioning concave portions 43a and 43b, the first uneven surface 41 and the second uneven surface 46 are positioned relative to each other at least in the surface direction. ing. Here, the surface direction is a surface that coincides with the planar direction of the first uneven surface 41 and the second uneven surface 46 when the first uneven surface 41 and the second uneven surface 46 are observed as a whole and globally. Refers to that. Accordingly, in many cases, the first concavo-convex surface 41 and the second concavo-convex surface 46 are pressed toward each other in the surface direction with respect to the first concavo-convex surface 41 and the second concavo-convex surface 46 so that the present embodiment also applies. The direction of the surface perpendicular to the direction in which the first uneven surface 41 and the second uneven surface 46 approach due to driving from the drive mechanism 12 coincides with the direction of the surface orthogonal to the direction in which the first uneven surface 46 approaches. From the above, when the positioning convex portions 48a and 48b and the positioning concave portions 43a and 43b are engaged, the amount of the convex portion 46a of the second concave and convex surface 46 entering the concave portion 41a of the first concave and convex surface 41 In any case, the positional relationship in the surface direction between the concave portion 41a and the convex portion 46a is controlled to the positional relationship planned at the time of the stamping process.

  The positions of the positioning recesses 43a and 43b on the first uneven surface 41 can be determined based on the position of the recess 41a on the first uneven surface 41 when the first plate 40 is manufactured. Similarly, the positions of the positioning protrusions 48a and 48b on the second uneven surface 46 can be determined based on the position of the protrusion 46a on the second uneven surface 46 when the second plate 45 is manufactured. According to the positioning concave portions 43a and 43b formed on the first concave and convex surface 41 and the positioning convex portions 48a and 48b formed on the second concave and convex surface 46 in this way, as described above, the positioning convex portion 48a. 48b and positioning recesses 43a and 43b can be engaged with each other so that the first uneven surface 41 and the second uneven surface 46 are positioned at predetermined positions relative to each other at least in the surface direction. Further, the positioning recesses 43a and 43b that can be formed as described above do not substantially increase the manufacturing cost of the first plate 40, and similarly, the positioning protrusions that can be formed as described above. The parts 48a and 48b also do not substantially increase the manufacturing cost of the second version 45.

  As will be described later, the positioning concave portions 43a and 43b and the positioning convex portions 48a and 48b are not used during processing of the actual workpiece 80. For this reason, it is preferable to remove the positioning convex portions 48a and 48b prior to the actual processing when the processing target 80 can be affected in some way depending on the arrangement position. In this case, as described later, it is preferable that the positioning protrusions 48a and 48b can be removed in a state where the second plate 45 is attached to the second holding member 25. For this reason, as described above, the positioning protrusion The parts 48a and 48b are formed of a material that can be removed using a portable small tool without using a machine tool, for example, magnesium, aluminum, an alloy metal thereof, or a resin. It is preferable that

  By the way, in the illustrated example, as shown in FIG. 5, the positioning convex portions 48 a and 48 b taper toward the tip, in other words, toward the first uneven surface 41 of the first plate 40. It is formed in a tapered shape that tapers off. This facilitates the insertion of the positioning convex portions 48a and 48b into the positioning concave portions 43a and 43b, and stabilizes the first concave and convex surface 41 of the first plate 40 and the second concave and convex surface 46 of the second plate 45. Thus, it can be arranged in a predetermined positional relationship.

  Furthermore, in the illustrated example, as well shown in FIG. 4, the positioning recesses 43 a and 43 b have a tapered shape that tapers as they move away from the opening, in other words, the first uneven surface 41. In other words, the hole is formed in a tapered shape that tapers as it gets away from the surface of the second plate 45, or in other words, a taper shape that tapers as it gets away from the second uneven surface 46 of the second plate 45. As a result, the first uneven surface 41 of the first plate 40 and the second uneven surface 46 of the second plate 45 can be stably arranged in a predetermined positional relationship.

  Next, a method for producing a stamped product 90 from the workpiece object 80 by performing a stamping process on the workpiece 80 using the stamping machine 10 having the above configuration will be described.

  First, a mold 30 comprising a combination of the first version 40 and the second version 45 is prepared. Next, as shown in FIG. 6, the first positioning protrusion 48 a of the second plate 45 is engaged with the first positioning recess 43 a of the first plate 40, and the second positioning protrusion of the second plate 45 is engaged. By engaging the portion 48 a with the second positioning recess 43 a of the first plate 40, that is, the first positioning projection 48 a of the second plate 45 is fitted into the first positioning recess 43 a of the first plate 40. At the same time, the first plate 40 and the second plate 45 are combined by fitting the second positioning projection 48 a of the second plate 45 into the second positioning recess 43 a of the first plate 40. Then, for example, using a joining means (not shown) such as an adhesive tape, the first plate 40 and the second plate 45 are temporarily fixed (temporarily fixed) in a combined state. As described above, in the state where the positioning convex portions 48a and 48b and the positioning concave portions 43a and 43b are engaged, the first uneven surface 41 and the second uneven surface 46 are processed at least in the surface direction. The object 80 is positioned in the positional relationship when the planned embossing process is performed.

  Next, as shown in FIG. 7, the first plate 40 is attached to the first holding member 20 in a state where the first plate 40 and the second plate 45 are temporarily fixed. The mounting position of the first plate 40 on the first holding member 20 is determined in consideration of the processing position on the processing object 80. In the illustrated example, a plurality of first plates 40 are attached to the first holding member 20. Further, the first plate 40 is fixed to the first holding member 20 by using the fixing tool 21. In consideration of workability, the first plate 40 is preferably attached in a state where the first holding member 20 is removed from the embossing machine 10. After the first plate 40 is attached, the first holding is performed. The member 20 is attached to a predetermined position of the embossing machine 10.

  Next, as shown in FIG. 8, the first holding member 20, the second holding member 25, and the like until the second plate 45 temporarily fixed to the first plate 40 contacts the second holding member 25 by the drive mechanism 12. The second plate 45 temporarily fixed to the first plate 40 is transferred to the second holding member 25. As an example, as shown in FIG. 7, the surface of the second plate 45 facing the second holding member 25 has a stronger bonding force than the bonding means for temporarily fixing the first plate 40 and the second plate 45. The joining means, for example, an adhesive or a pressure-sensitive adhesive is applied in advance. For this reason, as shown in FIG. 8, when the second plate 45 comes into contact with the second holding member 20 via the joining means 27, the second plate 45 is moved by the joining means 27 as shown in FIG. 2 Temporarily joined to the holding member 20, and peeled off from the first plate 40 that is driven by the drive mechanism 12 and moves backward.

  Thereafter, as shown in FIG. 10, the second plate 45 transferred to the second holding member 25 is fixed to the position as transferred on the second holding member 25 by the fixture 26. Next, by using a tool or tool such as a cutter knife, the first positioning convex portion 48a and the second positioning convex portion 48b from the second uneven surface 46 of the second plate 45 fixed on the second holding member 25. Remove. As described above, the attachment of the mold 30 including the first plate 40 and the second plate 45 to the stamping machine 10 is completed.

  Thereafter, as shown in FIG. 2, the workpiece 80 is supplied between the first plate 40 attached to the first holding member 20 and the second plate 45 attached to the second holding member 25. When the workpiece 80 is disposed at a predetermined position between the first holding member 20 and the second holding member 25, the drive mechanism 12 drives the first holding member 20, and the first plate 40 and the second plate 45. The workpiece 80 is pressurized between the two. As a result, as shown in FIG. 3, the convex pattern 90 a corresponding to the concave portion 41 a of the first concave and convex surface 41 of the first plate 40 and the convex portion 46 a of the second concave and convex surface 46 of the second plate 45 is formed on the workpiece 80. The embossed product 90 is obtained from the workpiece 80.

  By the way, as described above, in the state in which the positioning convex portions 48a and 48b and the positioning concave portions 43a and 43b are engaged and combined, the first uneven surface 41 and the second uneven surface 46 are at least in the surface direction. Are positioned in the positional relationship when performing the planned stamping process on the workpiece 80. Thus, the second plate 45 positioned in the surface direction with respect to the first plate 40 is moved relative to the first holding member 20 by the driving mechanism 12 that can drive the first holding member 20 in a direction orthogonal to the surface direction. Then, it is transferred onto the second holding member 25 arranged at a predetermined position, and is fixed to the second holding member 25 at the transferred position. Further, when the workpiece 10 is actually processed, the first holding member 20 that holds the first plate 40 uses the drive mechanism 12 to reach the second position until the first plate 40 meshes with the second plate 45. It is moved toward the holding member 25 side. Therefore, when the embossing process is performed using the embossing machine 10, the first uneven surface 41 and the second uneven surface 46 are scheduled to cooperate even if the positioning convex portions 48a and 48b are not present. The embossing process is arranged in a positional relationship that can be applied to the workpiece. This makes it possible to perform a desired stamping process on the workpiece 80 with high accuracy, and the obtained stamped product 90 is finished to a desired quality.

  In addition, according to the method mentioned above, the 1st plate 40 and the 2nd plate 45 can be positioned with high precision in each type | mold 30 with respect to each other. On the other hand, when a pattern or the like is printed on the processing object 80 in advance, the position of the embossing process may be shifted with respect to the processing object 80. In this case, it is necessary to readjust the attachment positions of the target mold 30 to the first holding member 20 and the second holding member 25. Specifically, first, the first plate 40 and the second plate 45 constituting the target mold 30 are removed from the first holding member 20 and the second holding member 25, respectively, and the first plate 40 and the second plate 45 are removed. Reattaching to the first holding member 20 and the second holding member 25 by the method described above. Even in such readjustment, the positioning of the first plate 40 and the second plate 45 with respect to each other can be performed with high accuracy using the positioning convex portions 48a and 48b and the positioning concave portions 43a and 43b. It is sufficient to focus on positioning the first plate 40 with respect to the workpiece 80, and readjustment can be performed relatively easily.

  According to the present embodiment as described above, at least two positioning concave portions 43a and 43b are provided in the first plate 40, and positioning convex portions 48a and 48b that can be engaged with the positioning concave portions 43a and 43b are provided. At least two of the second plate 45 are provided. When the positioning convex portions 48a and 48b engage with the positioning concave portions 43a and 43b, the first uneven surface 41 and the second uneven surface 46 are positioned relative to each other at least in the surface direction. By using the positioning concave portions 43a and 43b and the positioning convex portions 48a and 48b, the first press 40 and the second plate 45 are positioned with respect to each other without relying on visual judgment. It can be attached very easily. As a result, the stamping process can be performed on the workpiece 80 with high accuracy, and a high-quality stamped product can be manufactured easily and stably. Furthermore, it is possible to reduce the processing object that is damaged in the test processing for confirming the mounting positions of the first plate 40 and the second plate 45 that form the mold 30, and thereby, the production yield of the stamped product 90. Can be improved, and the production efficiency of the embossed product 90 can be improved.

  Note that various modifications can be made to the above-described embodiment. Hereinafter, an example of modification will be described.

  In the above-described embodiment, the example in which the two positioning convex portions 48a and 48b are provided on the second uneven surface 46 of the second plate 45 is shown, but the present invention is not limited to this, and three or more positioning convex portions are provided. However, the second uneven surface 46 of the second plate 45 may be provided. Similarly, although the example in which the two positioning recesses 43a and 43b are provided on the first uneven surface 41 of the first plate 40 has been shown, the present invention is not limited thereto, and may be increased according to the number of positioning protrusions. .

  Furthermore, the term “concave part” used in the present specification includes not only a hole with a bottom but also a through hole. Therefore, in the drawings referred to in the above-described embodiment, an example in which the positioning recesses 43a and 43b are configured as bottomed holes is shown. However, the present invention is not limited to this, and penetrates through the first plate 40. It may be configured as a hole.

  Furthermore, in the above-described embodiment, the example in which the first uneven surface 41 of the first plate 40 is formed by the concave portion 41a is shown, but the present invention is not limited to this, and the first uneven surface 41 of the first plate 40 is convex. It may be formed by a part, or may be formed by a combination of a convex part and a concave part. Similarly, an example in which the second uneven surface 46 of the second plate 45 is formed by the convex portion 46a is shown, but the present invention is not limited to this, and the second uneven surface 46 of the second plate 45 is formed by the concave portion. Alternatively, it may be formed by a combination of a convex portion and a concave portion. In addition, when the 1st uneven surface 41 of the 1st plate 40 is comprised by a convex part, and the 2nd uneven surface 46 of the 2nd plate 45 is comprised by a recessed part, with the example shown by FIG. A debossing process for forming a reverse concave pattern on the workpiece 80 is performed on the workpiece 80 by the embossing machine 10.

  Further, in FIG. 6 referred to in the above-described embodiment, an example in which the positioning convex portions 48a and 48b are integrally formed from the same material as the other portions (base portions) of the second plate 45 is shown. However, it is not limited to this. For example, by using a material suitable for removing the positioning convex portions 48 a and 48 b from the second plate 45, the positioning convex portions 48 a and 48 b are different from other portions (base portions) of the second plate 45. It may be made of a material. In the first place, when the second plate 45 is formed of a resin material, only the surface portion of the second concavo-convex surface 46 of the second plate 45 or only the convex portion 46a is different from the other portions, As an example, it may be made of a material having higher hardness.

  Furthermore, in the above-described embodiment, the example in which the molding process is performed by the embossing machine 10 is shown, but the present invention is not limited to this as already described. For example, the stamping machine 10 may perform a foil pressing process for transferring a metal foil, and a foil pressing process for performing foil pressing and molding at the same time. When the foil pressing process is performed, the metal foil is also supplied between the first plate 40 and the second plate 45 together with the workpiece 80 so as to be positioned on the first plate side of the workpiece 80. And the 1st edition 40 is heated. The metal foil is transferred to the workpiece 80 at the portion of the first plate 40 that contacts the first uneven surface 41.

  Further, in the above-described embodiment, first, the first plate 40 temporarily fixed to the second plate 45 is attached to the first holding member 20, and then the second plate 45 is transferred to the second holding member 25. However, it is not limited to this. The mold 40 composed of the first plate 40 and the second plate 45 may be attached to the stamping machine 10 as follows. Even in such a modified example, the same function and effect as those described above are ensured. obtain. Specifically, first, the first plate 40 and the second plate 45 are temporarily fixed in a state where the positioning convex portions 48a and 48b and the positioning concave portions 43a and 43b are engaged. Next, the second plate 45 is attached to the second holding member 25 in a state where the first plate 40 and the second plate 45 are temporarily fixed. Thereafter, the drive mechanism 12 brings the first holding member 20 and the second holding member 25 closer until the first plate 40 contacts the first holding member 20, and the first plate 40 is transferred to the first holding member 20. Included. Next, the first plate 40 is attached to the position where the first holding member 20 is transferred and fixed to the first holding member 20.

  In addition, although the some modification with respect to embodiment mentioned above was demonstrated above, naturally, it is also possible to apply combining several modifications suitably.

  EXAMPLES Hereinafter, although this invention is demonstrated in detail using an Example, this invention is not limited to this Example.

As Example 1, a mold for producing a packaging box for luxury goods actually sold was produced with the configuration of the above-described embodiment. Two positioning recesses with holes of φ2mm x 0.4mm are formed on the first plate made of brass C3713, and two positioning protrusions with projections of φ2mm x 0.4mm are made on the second plate made of epoxy resin. Part was formed. The 1st edition was constituted as a female type and gave the 1st uneven surface which consists of a crevice. The second version was configured as a male mold and provided with a second irregular surface consisting of convex portions. The produced mold was attached to an embossing machine that is manufacturing a packaging box for luxury goods that is actually sold by the method described in the above embodiment. And the processed object was processed with the stamping machine, and the stamped article was produced. The processing object was cellulosic fiber paper (M-REAL, TAKO-CX, 215 g / m ² ) as in the case of manufacturing packaging boxes for luxury goods that are actually sold. An embossed product on which a convex pattern having a height of 0.25 mm was formed could be produced with high reproducibility.

As Example 2, a mold for producing a packaging box for foodstuffs that is actually sold was produced with the above-described configuration. Two positioning recesses with holes of φ2mm x 0.4mm are formed on the first plate made of brass C3713, and two positioning protrusions with projections of φ2mm x 0.9mm are made on the second plate made of epoxy resin. Part was formed. The 1st edition was constituted as a male type, and gave the 1st uneven surface which consists of a convex part. The second version was configured as a female mold and provided with a second uneven surface consisting of recesses. The produced mold was attached to an embossing machine producing a packaging box for foodstuffs that is actually sold by the method described in the above embodiment. And the processed object was processed with the stamping machine, and the stamped article was produced. The processing object was cellulosic fiber paper (Oji Paper, UF coat, 270 g / m ² ) as in the case of the production of food packaging boxes that are actually sold. An embossed product in which a concave pattern with a depth of 0.5 mm was formed could be produced with high reproducibility.

DESCRIPTION OF SYMBOLS 10 Embossing machine 12 Drive mechanism 14 Base 20 First holding member 21 Fixing tool 25 Second holding member 26 Fixing tool 27 Joining means 30 Mold 40 First plate 41 First uneven surface 41a Recess 43a Positioning recess 43b Positioning recess 45 Second plate 46 Second uneven surface 46a Concave portion 48a Positioning convex portion 48b Positioning convex portion 80 Object to be processed, workpiece 90 Embossed article

Claims (7)

A mold used for embossing,
A first metal plate having a first irregular surface;
A second plate having a second irregular surface,
The first plate is provided with at least two positioning recesses,
The second plate is provided with at least two positioning projections engageable with the positioning recess of the first plate,
When the positioning convex portion and the positioning concave portion are engaged, the first uneven surface and the second uneven surface are positioned relative to each other at least in the surface direction ,
The positioning projection is formed of a resin .   The mold according to claim 1, wherein the positioning convex portion is removable from the second plate.   A mold used for embossing,
  A first metal plate having a first irregular surface;
  A second plate having a second irregular surface,
  The first plate is provided with at least two positioning recesses,
  The second plate is provided with at least two positioning projections engageable with the positioning recess of the first plate,
  When the positioning convex portion and the positioning concave portion are engaged, the first uneven surface and the second uneven surface are positioned relative to each other at least in the surface direction,
  The mold in which the positioning convex portion is removable from the second plate.   The said positioning convex part is a type | mold as described in any one of Claims 1-3 which becomes the taper shape which tapers toward the front-end | tip.   The mold according to any one of claims 1 to 4, wherein the positioning recess is a hole or a hole having a tapered shape that tapers as the distance from the side facing the second surface increases. At least one mold according to any one of claims 1 to 5;
A first holding member to which the first plate of the mold is attached;
A second holding member to which the second plate of the mold is attached;
A stamping machine comprising: a drive mechanism capable of driving the first holding member and the second holding member so as to approach each other and away from each other. A mold having a first metal plate having a first uneven surface and a second plate having a second uneven surface;
A first holding member to which the first plate of the mold is attached;
A second holding member to which the second plate of the mold is attached;
A drive mechanism capable of driving the first holding member and the second holding member so as to approach and separate from each other;
The first plate is provided with at least two positioning recesses,
The second plate is provided with at least two positioning projections engageable with the positioning recess of the first plate,
When the positioning convex portion and the positioning concave portion are engaged, the first uneven surface and the second uneven surface are positioned relative to each other at least in the surface direction. A method of manufacturing
Temporarily fixing the first plate and the second plate in a state in which the positioning convex portion and the positioning concave portion are engaged;
With the first and second plates temporarily fixed, one of the first and second plates is replaced with one of the first holding member and the second holding member corresponding to the one. And the process of attaching,
The drive mechanism causes the first holding member and the second holding member until the other of the first plate and the second plate contacts the other of the first holding member and the second holding member. Moving the other of the first plate and the second plate onto the other of the first holding member and the second holding member;
Attaching the other of the first plate and the second plate to a transferred position on the other of the first holding member and the second holding member;
A workpiece is supplied between the first plate attached to the first holding member and the second plate attached to the second holding member, and the workpiece is embossed and embossed. A process of manufacturing a product ,
The positioning convex part of the second plate after the first plate and the second plate are separated from the temporarily fixed state, the step being performed before the step of manufacturing the embossed article. The manufacturing method of an embossed article further provided with the process of removing .

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