Extrusion die for forming patterned product

Abstract

Provided is an extrusion die for forming a patterned product, which is capable of continuously forming arbitrary uneven patterns on different surfaces of a product member having a hollow portion. The extrusion die for forming a patterned product comprises: an upper die (10) having a mandrel (13) provided with an inner bearing section (15) for forming a thermoplastic member into a hollow shape; an intermediate mold (20) having an outer bearing section (25) that forms the outer shape of the thermoplastic member; and a lower mold (30) that supports the upper mold via the intermediate mold. The lower mold includes a first lower mold (31) having a first pattern forming tool (40A) and a second pattern forming tool (40B), and a second lower mold (37), the first pattern forming tool (40A) and the second pattern forming tool (40B) each rotating in accordance with the movement of the product member (3) formed by the bearing portion, and the first pattern forming tool (40A) and the second pattern forming tool (40B) rotating in accordance with the movement of the product member (3). The first pattern forming tool (40A) forms a pattern on at least one of the facing surfaces of the article member, and the second pattern forming tool (40B) forms a pattern on at least one of the facing surfaces different from the surface on which the pattern is formed in the article member. The second lower die 37 is coupled to the first lower die to fix the second pattern forming tool.

Description

Technical Field

[0001] The present invention relates to an extrusion die for forming a patterned product, which forms a predetermined pattern on different surfaces of a product component having a hollow portion formed of a thermoplastic material such as an aluminum alloy to produce a patterned product. Background Art

[0002] Generally speaking, aluminum alloys and the like are excellent in processability and can be expected to have a high degree of freedom in cross-sectional shape, and various shapes can be obtained, so they are suitable for extrusion processing and are currently widely used.

[0003] For example, a concave-convex pattern such as a rack shape or a corrugated shape may be formed on the surface by extrusion of an aluminum alloy, or a concave-convex pattern may be formed continuously in the longitudinal direction and in the width direction perpendicular to the longitudinal direction of the surface.

[0004] Conventionally, as a technology for extrusion molding products with concave and convex patterns, there is known an extrusion die for molding patterned products, which molds patterns on both side surfaces of a product component having a hollow portion formed by a thermoplastic component continuously extruded from a raw material supply side (for example, refer to Japanese Patent Gazette No. 2022-45464).

[0005] According to the extrusion die for forming a patterned product described in Japanese Patent Laid-Open No. 2022-45464, a thermoplastic component, i.e., a metal including an aluminum alloy, which is continuously extruded with a softness roughly like clay is formed into a product component using a bearing portion, and a concave-convex pattern is simultaneously formed on the facing surfaces of the product component using two pattern forming tools having concave-convex pattern forming portions on the surface which rotate as the metal is extruded.

[0006] The patterned product having a hollow portion formed in this way is used, for example, for blinds or fence pillars, etc. By applying a concave-convex pattern to the surface of the patterned product, the design can be improved, and the functionality of the pattern such as display and identification can be improved. Summary of the invention

[0007] Problems to be solved by the invention

[0008] However, in the technology disclosed in Japanese Patent Application Laid-Open No. 2022-45464, although patterns can be formed on two opposing surfaces of a product having a hollow portion, patterns cannot be formed continuously on the remaining two surfaces.

[0009] In order to further improve the design of such a hollow product and enhance the display and identification functionality of the pattern, it is ideal to form the pattern on a different surface other than the two facing surfaces of the product.

[0010] The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an extrusion die for molding a patterned product, which can continuously mold any concave and convex patterns on different surfaces of a product member having a hollow portion.

[0011] Technical means of solving problems

[0012] In order to achieve the above-mentioned problem, the present invention is an extrusion die for forming a patterned product, which forms patterns on different surfaces of a product member having a hollow portion formed by a thermoplastic member continuously extruded from a raw material supply side, and is characterized in that the extrusion die for forming a patterned product comprises: an upper die having a mandrel, the mandrel being provided with a bearing portion for introducing the thermoplastic member and forming the hollow portion shape of the thermoplastic member; an intermediate die having a bearing portion for forming the outer shape of the thermoplastic member; and a lower die supporting the upper die via the intermediate die, the lower die comprising a first lower die having a first pattern forming tool and a second pattern forming tool, and a second lower die, the first pattern forming tool rotating as the product member is formed by the bearing portion and forming a pattern on at least one of the opposing surfaces of the product member, the second pattern forming tool rotating as the product member is moved and forming a pattern on at least one of the opposing surfaces of the product member different from the surface on which the pattern is formed, and the second lower die being connected to the first lower die to fix the second pattern forming tool.

[0013] With such a configuration, the thermoplastic member is extruded and passed through the bearing portion of the mandrel of the upper die and the bearing portion of the intermediate die, thereby forming the thermoplastic member into the shape of a member for a product having a hollow portion. In addition, when the thermoplastic member passes through the upper die and the lower die disposed on the downstream side of the intermediate die, the pressing force generated by the first pattern forming tool acts on the facing surfaces of the thermoplastic member to form a concave-convex pattern on the facing surfaces or at least one of the facing surfaces of the member for a product, and then the pressing force generated by the second pattern forming tool acts on the facing surface of the member for a product different from the surface on which the pattern is formed or at least one of the facing surfaces to form a concave-convex pattern on the facing surface of the member for a product.

[0014] In the present invention, it is preferred that a lower guide portion for guiding the movement of the component for the product formed by the bearing portion is provided on the first lower die constituting the lower die mold, and a retreat portion for absorbing the pressing force when the first pattern forming tool and the second pattern forming tool are performing pattern forming is formed on the core shaft.

[0015] With such a configuration, when the first pattern forming tool and the second pattern forming tool are used to form the pattern, the pressing force is absorbed by the escape portion.

[0016] In addition, in the present invention, preferably, the mandrel is formed to the downstream side in the moving direction of the product component than the position where the product component is pressed by the first pattern forming tool and the second pattern forming tool, and the retreat portion is formed to the front end of the mandrel.

[0017] With such a configuration, the material flowing toward the hollow portion among the material flowing toward the downstream side of the thermoplastic member due to the pressing of the pattern forming portions of the first pattern forming tool and the second pattern forming tool is restricted by the escape portion.

[0018] In addition, in the present invention, it is preferred that the first pattern forming tool and the second pattern forming tool use the following tools: a tool formed by the same pattern forming tool that forms the same pattern on different surfaces of the component for the product, a tool including a non-pattern forming tool in which a pattern is not formed on one of the opposing surfaces of the component for the product, or a tool including a special-shaped pattern forming tool that respectively forms different patterns on different surfaces of the component for the product, etc.

[0019] With such a configuration, any pattern including no pattern can be selected and formed on different surfaces of the product member having a hollow portion.

[0020] In addition, in the present invention, it is preferred that the first pattern forming tool and the second pattern forming tool are respectively rotatably arranged on the first lower mold so as to be press-adjustable toward the product component side. In the above case, it is preferred that both ends of the rotating shafts of the first pattern forming tool and the second pattern forming tool are respectively rotatably supported on the first mounting member and the second mounting member via bearings, the first mounting member is arranged in a first mounting member setting recess formed on the side of the upper mold in the first lower mold, and the second mounting member is arranged in a second mounting member setting recess formed on the side of the second lower mold in the first lower mold, and a press-adjusting mechanism is arranged in the first lower mold, and the press-adjusting mechanism makes the first mounting member and the second mounting member slide in a direction orthogonal to the moving direction of the product component to adjust the pressing of the first pattern forming tool and the second pattern forming tool on the product component.

[0021] By such a configuration, the first pattern forming tool and the second pattern forming tool are pressed and adjusted toward the product member side, thereby adjusting the pressing force of the first pattern forming tool and the second pattern forming tool on the product member, that is, the amount of the first pattern forming tool and the second pattern forming tool biting into the product member. In the above case, the first pattern forming tool is supported by the first mounting member of the first mounting member setting recess formed on the side of the upper mold mold arranged in the first lower mold. The first mounting member slides in a direction orthogonal to the moving direction of the product member by a pressing adjustment mechanism to adjust the pressing force, that is, the amount of biting. On the other hand, the second pattern forming tool is supported by the second mounting member of the second mounting member setting recess formed on the side of the second lower mold arranged in the first lower mold. The second mounting member slides in a direction orthogonal to the moving direction of the product member by a pressing adjustment mechanism to adjust the pressing force, that is, the amount of biting. As a result, the first pattern forming tool and the second pattern forming tool that form different patterns can be easily assembled into the first lower mold. In addition, the amount of the first pattern forming tool and the second pattern forming tool biting into different surfaces of the product member can be adjusted.

[0022] Effects of the Invention

[0023] According to the invention described in claim 1, the pressing force generated by the first pattern forming tool acts on the facing surfaces of the thermoplastic member formed into the shape of the product member having a hollow portion, thereby forming a concavo-convex pattern on the facing surfaces of the product member or at least one of the facing surfaces, and then the pressing force generated by the second pattern forming tool acts on the facing surface of the product member that is different from the surface on which the pattern is formed or at least one of the facing surfaces, thereby forming a concavo-convex pattern on the facing surface of the product member. Therefore, any concavo-convex pattern can be continuously formed on different surfaces of the product member having a hollow portion.

[0024] According to the invention described in Technical Solution 2, when the pattern is formed using the first pattern forming tool and the second pattern forming tool, the pressing force is absorbed by the retreat portion, so that the inner surface of the component for the product can be in close contact with the retreat portion, thereby preventing the generation of concave and convex shapes on the inner surface of the component for the product or deformation of the side forming the concave and convex shapes.

[0025] According to the invention described in claim 3, the material flowing toward the hollow portion of the material flowing toward the downstream side of the thermoplastic member due to the pressing of the pattern forming parts of the first pattern forming tool and the second pattern forming tool is restricted by the escape portion. As a result, the inner surface of the product member and the escape portion are kept in close contact with each other, thereby suppressing the generation of uneven shapes on the inner surface of the product member.

[0026] According to the inventions described in Technical Scheme 4, Technical Scheme 5 and Technical Scheme 6, the first pattern forming tool and the second pattern forming tool can be arbitrarily combined as follows: formed by the same pattern forming tool, or including a non-pattern forming tool in which a pattern is not formed on one of the opposing surfaces of a component for a product, or including a special-shaped pattern forming tool in which different patterns are formed on different surfaces of a component for a product, so that any pattern including no pattern can be selected for forming on different surfaces of a component for a product having a hollow portion.

[0027] According to the inventions described in technical solutions 7 and 8, the first pattern forming tool and the second pattern forming tool are pressed and adjusted toward the product component side, thereby adjusting the pressing force of the first pattern forming tool and the second pattern forming tool on the product component, in other words, the amount of the first pattern forming tool and the second pattern forming tool biting into the product component. Therefore, the depth of the pattern added to the product component can be appropriately adjusted. In addition, according to the invention described in technical solution 8, the first pattern forming tool and the second pattern forming tool that form different patterns can be easily assembled into the first lower mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] [ Figure 1 ] is a three-dimensional diagram showing the overall structure of the extrusion die for forming patterned products according to the present invention.

[0029] [ Figure 2 ] (a) is a stereoscopic view of the upper mold in the present invention, and (b) is an enlarged cross-sectional view of the upper mold.

[0030] [ Figure 3 ] (a) is a stereoscopic view of the intermediate mold in the present invention, and (b) is an enlarged cross-sectional view of the intermediate mold.

[0031] [ Figure 4 ] (a) is an upper stereoscopic view of the first lower mold constituting the lower mold mold in the present invention, (b) is a lower stereoscopic view of the first lower mold, and (c) is a stereoscopic view of the state in which the second lower mold is installed.

[0032] [ Figure 4A ] is an exploded cross-sectional view showing the first lower die, the second lower die and the connecting bolts in the present invention.

[0033] [ Figure 5 ] is a plan view of the lower mold that accommodates the pattern forming tool in the present invention.

[0034] [ Figure 6 ] is a bottom view of the lower mold that accommodates the pattern forming tool.

[0035] [ Figure 7 ] is a sectional stereoscopic view showing the installation state of the first pattern forming tool in the present invention.

[0036] [ Figure 8 ] is along Figure 5 Cross-sectional view of line II.

[0037] [ Fig. 8A ] is along Figure 8 Cross-sectional view along line II-II.

[0038] [ Fig. 9 ] is to indicate Figure 8 An enlarged cross-sectional view of the main parts.

[0039] [ Fig. 9A ] is to indicate Fig. 8A An enlarged cross-sectional view of the main parts.

[0040] [ Fig.10 ] (a) is a sectional stereoscopic view showing a state where a first pattern forming tool is installed on the first lower mold, and (b) is a sectional stereoscopic view showing a state where a second pattern forming tool is installed on the first lower mold.

[0041] [ Fig.11A ] means from Fig.10 (a) is an exploded perspective view of a state where the first pattern forming tool and the first mounting member are removed.

[0042] [ Fig. 11B ] means from Fig.10 The state (b) is an exploded perspective view of the state in which the second pattern forming tool and the second mounting member are removed.

[0043] [ Fig.12 ] represents the pressing adjustment mechanism of the pattern forming tool in the present invention, (a) is the state where the pattern forming tool bites into the component for the product to the utmost, and (b) is a plan view showing a part of the state where the pattern forming tool slightly bites into the component for the product in section.

[0044] [ Fig.13 ] is along Fig.12 (b) Cross-sectional view along line III-III.

[0045] [ Fig.14A ] (a) is an upper stereoscopic view showing a patterned product having the same pattern on different surfaces formed by an extrusion die for forming a patterned product of the present invention, and (b) is a lower stereoscopic view.

[0046] [ Fig. 14B ] (a) is an upper stereoscopic view showing a patterned product formed by an extrusion die for forming a patterned product of the present invention, with three sides having the same pattern and one side having no pattern, and (b) is a lower stereoscopic view.

[0047] [ Fig. 14C ] (a) is an upper stereoscopic view showing a patterned product having two adjacent surfaces with the same pattern and without a pattern formed by an extrusion die for forming a patterned product of the present invention, and (b) is a lower stereoscopic view.

[0048] [ Fig.15 ] (a) is an upper stereoscopic view showing a patterned product formed by an extrusion die for forming a patterned product of the present invention, in which two opposing surfaces have the same wavy pattern and the other two opposing surfaces have diamond patterns, and (b) is a lower stereoscopic view.

[0049] [ Fig.16 ] (a) is an upper stereoscopic view showing a patterned product formed by an extrusion die for forming a patterned product of the present invention, wherein one of the two facing surfaces has the same wavy pattern and the other two facing surfaces have a diamond pattern and a quadrilateral pattern, and (b) is a lower stereoscopic view. DETAILED DESCRIPTION

[0050] Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

[0051] The extrusion die 1 for forming a patterned product of the present invention (hereinafter referred to as the extrusion die 1) includes: an upper die 10 having a mandrel 13, wherein the mandrel 13 is provided with an inner bearing portion 15 for introducing a thermoplastic component (metal M) pressed from a container 2 and forming a hollow shape of the thermoplastic component; an intermediate die 20 having an outer bearing portion 25 for forming an outer shape of the thermoplastic component; and a lower die 30, which supports the upper die 10 via the intermediate die 20.

[0052] The lower mold mold 30 includes a first lower mold 31 having a first pattern forming tool 40A and a second pattern forming tool 40B, and a second lower mold 37. The first pattern forming tool 40A rotates with the movement of the product component 3 formed by the inner bearing portion 15 in the core shaft 13 and the outer bearing portion 25 in the intermediate mold 20, and forms a pattern Da on the opposite surfaces of the product component 3. The second pattern forming tool 40B rotates with the movement of the product component 3, and forms a pattern Da on the opposite surfaces of the product component 3 that are different from the surface on which the pattern Da is formed. The second lower mold 37 is connected to the first lower mold 31 to fix the second pattern forming tool 40B.

[0053] In the above case, the upper mold 10 and the intermediate mold 20 are connected by fitting the annular protrusion 20b provided on the outer periphery of the upper surface of the intermediate mold 20 into the annular recess 10a provided on the outer periphery of the lower surface of the upper mold 10, and the intermediate mold 2 and the first lower mold 31 constituting the lower mold 30 are connected by fitting the annular protrusion 31b provided on the outer periphery of the upper surface of the first lower mold 31 into the annular recess 20a provided on the outer periphery of the lower surface of the intermediate mold 20. The upper mold 10, the intermediate mold 20 and the first lower mold 31 are connected by a connecting bolt (not shown) inserted from the back side of the first lower mold 31. In the above state, the intermediate mold 20 is connected in a state of being clamped by the upper mold 10 and the first lower mold 31, so that deflection or deformation is suppressed.

[0054] The first lower mold 31 and the second lower mold 37 constituting the lower mold die 30 are connected by screwing connecting bolts 38 penetrating through holes 37a provided at four locations of the second lower mold 37 into threaded holes 36 provided at four locations on the lower surface of the first lower mold 31 (see Figure 4A , Figure 8 , Fig. 8A ).

[0055] like Figure 8 and Fig. 8A As shown, the container 2 is placed on the upper surface of the upper die 10 and is configured to accommodate the metal M and maintain the temperature of the metal M at 400°C to 500°C.

[0056] The upper surface of the upper die 10 is slightly concave in the center for placing the container 2, and four fan-shaped introduction holes 11 are formed in the concave portion, each offset at a predetermined angle from the center axis of the upper die 10. The introduction holes 11 are used to pass the metal M, and two bridges 12 are cross-arranged to divide the introduction holes 11. In other words, the portion dividing the introduction hole 11 functions as the bridge 12.

[0057] These bridges 12 are used to support the core shaft 13. On the back side of the central part (the part where the bridges 12 intersect each other), a support shaft 14 is hung down on the lower side of the axial direction of the upper mold 10 and connected. The core shaft 13 is connected to the front end of the support shaft 14.

[0058] The lower end surface of the mandrel 13 is formed to be lower than the position horizontal to the rotation center of the second pattern forming tool 40B provided in the first lower mold 31 constituting the lower mold die 30 and the outer bearing portion 25 in the intermediate mold 20. That is, the mandrel 13 is formed to be downstream of the position where the second pattern forming tool 40B presses the product member 3 as described later in the moving direction of the product member 3 (see Figure 8 , Fig. 8A ).

[0059] On the upper side of the mandrel 13, there is formed Figure 2 (b) shows an inner bearing portion 15 having a substantially same shape as the inner side of the product 4, that is, a cross-sectional shape formed into a quadrilateral shape (rectangular shape). In addition, a retreat portion 16 is formed at a position corresponding to the side surface of the product member 3 in a portion below the outer bearing portion 25, and the retreat portion 16 is used to suppress the formation of a concave-convex shape on the inner surface when the outer surface of the product member 3 is pressed by the first pattern forming tool 40A and the second pattern forming tool 40B (refer to Fig. 9 ). In addition, the retreat portion 16 is formed to the front end of the spindle 13.

[0060] like Figure 3 As shown, in order to place the upper mold 10, the middle mold 20 is slightly concave in the center, and a first storage portion 21 for storing the metal M having a shape substantially the same as the outer edge of the introduction hole 11 is formed in the concave portion. The first storage portion 21 is used to gradually shape the metal M introduced from the introduction hole 11 into the outer shape of the product 4, that is, a quadrilateral shape (rectangular shape). In the first storage portion 21, four protrusions 24 protruding from the outer peripheral side of the middle mold 20 toward the inside are formed at intervals of a predetermined angle with the central axis of the middle mold 20 as the center, so as to contact the back side of the outer peripheral side of the bridge 12. The protrusions 24 are provided to suppress the bridge 12 from bending due to the friction (or flow resistance) between the metal M and the mandrel 13, that is, to increase the bending rigidity of the bridge 12.

[0061] In the central portion of the first storage portion 21, a second storage portion 22 is formed which is continuous with the first storage portion 21. The opening of the upper side of the second storage portion 22 is formed to be larger than the outer dimensions of the product 4. In addition, the lower side of the second storage portion 22 is formed in such a manner that the inner diameter gradually decreases. Moreover, in the lower side of the second storage portion 22, a third storage portion 23 which is continuous with the second storage portion 22 and has an opening smaller than that of the second storage portion 22 is further formed. That is, the first storage portion 21, the second storage portion 22, and the third storage portion 23 are formed in such a manner that the outer dimensions of the metal M gradually decrease as the metal M moves.

[0062] In addition, at a position downstream of the third reservoir 23 and facing the inner bearing portion 15 in the mandrel 13, an outer bearing portion 25 is formed which is continuous with the third reservoir 23 and has an opening smaller than that of the third reservoir 23. The outer bearing portion 25 is a portion for finishing the outer shape of the metal M into the outer shape of the product 4, and the inner size of the outer bearing portion 25 is formed to be substantially the same as the outer size of the product 4. In addition, as described above, the inner bearing portion 15 is formed to be substantially the same as the inner shape of the product 4, so that the metal M passes between the inner bearing portion 15 and the outer bearing portion 25, and thus the shapes of the product 4 other than the pattern Da are formed to be the same as the shape of the metal M.

[0063] Furthermore, an upper guide portion 26 is formed below the outer bearing portion 25 and is continuous with the outer bearing portion 25. The upper guide portion 26 is a portion that guides the metal M (hereinafter, the formed metal M is referred to as the product member 3) formed and extruded by the inner bearing portion 15 and the outer bearing portion 25 to the lower die mold 30 side.

[0064] More specifically, a protrusion 27 protruding toward the downstream side is provided on the side surface on the lower side of the outer bearing portion 25, which corresponds to the portion where the first pattern forming tool 40A described later is provided, or on the side surface located above the first pattern forming tool 40A. The protrusion 27 is formed along a portion of the outer periphery of the upper side of the first pattern forming tool 40A and covers a portion of the outer periphery. The surface of the protrusion 27 facing the product member 3 is formed to have a predetermined gap with the product member 3. In addition, the side surface where the protrusion 27 is not formed is formed to be inclined so that the gap with the product member 3 becomes larger as the product member 3 moves, and the inclined surface is configured to function as the upper guide portion 26.

[0065] like Figure 4 , Figure 4A , Figure 5 As shown in the figure, the first lower mold 31 constituting the lower mold die 30 is formed in a cylindrical shape, and an annular convex portion 31b is formed on the outer periphery of the upper surface thereof to engage with the annular concave portion 20a formed on the back of the intermediate mold 20. The first lower mold 31 is formed with a pattern forming tool arrangement space 32 (hereinafter referred to as the arrangement space 32) having a substantially rectangular cross-section for arranging the first pattern forming tool 40A and the second pattern forming tool 40B near the substantially central portion of the plane thereof.

[0066] A lower guide portion 39 for guiding the product member 3 is formed on the first lower mold 31. The lower guide portion 39 is formed from the upper end surface to the lower end surface of the first lower mold 31. Figure 8 and Fig. 8AAs shown, the lower guide portion 39 is formed to have an opening area larger than the opening area of ​​the lower end side of the upper guide portion 26, and is formed along the axial direction of the first lower mold 31. In addition, in the second lower mold 37 connected to the first lower mold 31, an opening 37b having the same opening area as the lower guide portion 39 formed in the first lower mold 31 is formed.

[0067] In the configuration space 32 on the upper side of the first lower mold 31, that is, on the side of the intermediate mold 20, a first pattern forming tool 40A is arranged for forming a pattern Da on the opposite surface of the product component 3. In addition, in the configuration space 32 on the lower side (back side) of the first lower mold 31, a second pattern forming tool 40B is arranged for forming a pattern Da on the opposite surface of the product component 3 which is different from the surface on which the pattern Da is formed by the first pattern forming tool 40A.

[0068] On both sides of the upper side (the middle mold 20 side) of the first lower mold 31 along the length direction of the configuration space 32, first mounting member installation recesses 33 (hereinafter referred to as first installation recesses 33) for installing the mounting member 41 (hereinafter referred to as the first mounting member 41) of the first pattern forming tool 40A are formed. Figure 7 , Fig.10 (a) shows one of the first installation recesses 33. The first installation recess 33 is provided along the longitudinal direction of the configuration space 32, has a rectangular shape of a predetermined width, and is formed to a predetermined depth. The first mounting member 41 is inserted into the first installation recess 33 thus formed.

[0069] In addition, if Fig.10 (a) Fig.11A As shown in the figure, a through hole 34 connected to the first setting recess 33 is formed at a position on the extension line of each first setting recess 33 in the outer peripheral surface of the first lower mold 31. The inner diameter of the through hole 34 on the first setting recess 33 side is formed smaller than the inner diameter of the outer peripheral side of the first lower mold 31, and an internal thread 34a is formed in the small inner diameter portion. The pressing adjustment bolt 51 constituting the pressing adjustment mechanism of the first pattern forming tool 40A described later is screwed with the internal thread 34a. Two through holes 34 having the internal thread 34a are formed in such a manner as to press the upper and lower sides of the side surface of the first mounting member 41.

[0070] On the other hand, Fig.10As shown in (b), a second mounting member installation recess 35 (hereinafter referred to as the second installation recess 35) for installing the installation member 42 of the second pattern forming tool 40B (hereinafter referred to as the second installation member 42) is formed on both sides of the configuration space 32 on the lower side (back side) of the first lower mold 31 along the longitudinal direction orthogonal to the direction in which the first pattern forming tool 40A is arranged. The second installation recess 35 is formed in a rectangular shape with a predetermined width and a predetermined depth, similarly to the first installation recess 33. The second installation member 42 is inserted into the second installation recess 35 formed in this way.

[0071] In addition, if Fig.10 (b) Fig. 11B As shown in the figure, a through hole 34 connected to the second setting recess 35 is formed at a position on the extension line of each second setting recess 35 in the outer peripheral surface of the first lower mold 31. The inner diameter of the second setting recess 35 side of the through hole 34 is formed smaller than the inner diameter of the outer peripheral side of the first lower mold 31, and an internal thread 34a is formed in the small inner diameter portion. The pressing adjustment bolt 51 constituting the pressing adjustment mechanism of the second pattern forming tool 40B described later is screwed with the internal thread 34a. Two through holes 34 having the internal thread 34a are formed in such a manner as to press the upper and lower sides of the side surface of the second mounting member 42.

[0072] The first pattern forming tool 40A and the second pattern forming tool 40B form a pattern Da of a continuous concave-convex shape along the long side direction on the surface of the hollow rectangular product member 3, and are formed by rollers with tops and valleys arranged at appropriate intervals on the outer peripheral surface. In addition, the first pattern forming tool 40A forms the pattern Da on the short side surface of the product member 3, while the second pattern forming tool 40B forms the pattern Da on the long side surface of the product member, so the length of the pattern forming part is different, but the other structures are the same. The pattern Da formed on the surface of the product member 3 by the first pattern forming tool 40A and the second pattern forming tool 40B formed in this way has a concave part Da1 and a convex part Da2 corresponding to the top and valley of the first pattern forming tool 40A and the second pattern forming tool 40B, and is formed by clamping the surface of the product member 3 between the first pattern forming tool 40A and the second pattern forming tool 40B and the retreat part 16.

[0073] Specifically, Fig. 9When the first pattern forming tool 40A shown in the figure is described, when the side surface of the product member 3 formed between the inner bearing part 15 and the outer bearing part 25 to have a predetermined plate thickness does not directly receive a load and sags, the retreat part 16 is formed so that a predetermined gap S is left between the inner surface of the side surface and the retreat part 16. The gap S is configured to release the pressing force generated by the top of the first pattern forming tool 40A when the first pattern forming tool 40A forms the continuous concavo-convex pattern Da on the surface of the side surface. Therefore, when the first pattern forming tool 40A forms the continuous concavo-convex pattern Da on the surface of the side surface with its top, if the top of the first pattern forming tool 40A presses the side surface, the pressing force generated by the first pattern forming tool 40A is sucked into the retreat part 16, and the side surface is pushed and pressed to the retreat part 16. As a result, since the inner surface of the side surface is in close contact with the retreat part 16, it is possible to suppress the generation of concavo-convex shapes on the inner surface of the side surface.

[0074] Here, the first pattern forming tool 40A is described, but in the case where the pattern Da is formed by the second pattern forming tool 40B, similarly, when the second pattern forming tool 40B forms the pattern Da with a continuous concavo-convex shape on the surface of the side surface with its top, if the top of the second pattern forming tool 40B presses the side surface, the pressing force generated by the second pattern forming tool 40B is sucked into the retreat portion 16, and the side surface is pushed and pressed to the retreat portion 16. As a result, since the inner surface of the side surface is in close contact with the retreat portion 16, it is possible to suppress the generation of concavo-convex shapes on the inner surface of the side surface.

[0075] Next, the installation structure of the first pattern forming tool 40A and the second pattern forming tool 40B will be described. Here, the same reference numerals are used for the same parts. As described above, the first pattern forming tool 40A (the second pattern forming tool 40B) is disposed at a position facing the retreat portion 16. Fig.10 , Fig.11A and Fig. 11B As shown, a bearing 43 is embedded in the first mounting member 41 (the second mounting member 42), and a shaft 44 for supporting the first pattern forming tool 40A (the second pattern forming tool 40B) is embedded in the bearing 43. Figure 10 to Figure 12 As shown in the figures, the first mounting member 41 (the second mounting member 42) is inserted into the first setting recess 33 (the second setting recess 35) and is slidably embedded in the product member 3 (the metal M) side. In addition, the first pattern forming tool 40A (the second pattern forming tool 40B) and the shaft 44 are connected by a wedge 45.

[0076] Next, refer to Fig.12The structure of the pressing adjustment mechanism is described. The pressing adjustment mechanism includes: a pressing adjustment bolt 51 that abuts against one end of the first mounting member 41 (second mounting member 42) in the longitudinal direction, and an adjustment spacer 52 that is freely inserted and removed in the first setting recess 33 (second setting recess 35).

[0077] The press-adjustment bolts 51 are constructed so that the front end portion of each press-adjustment bolt 51 abuts against the end portion on one side of the length direction of the first mounting member 41 (second mounting member 42) by being screwed into the internal threads 34a provided in the through holes 34 formed from the outer peripheral side of the first lower mold 31 toward the side of the first mounting member 41 (second mounting member 42).

[0078] For example, Fig.12 As shown in (a), if the pressing adjustment bolt 51 is screwed into the internal thread 34a, the first mounting member 41 (the second mounting member 42) slides in the first setting recess 33 (the second setting recess 35) in the direction of arrow Y, thereby adjusting the amount by which the top of the pattern forming tool 30 bites into the specified surface of the product member 3, that is, the distance between the first pattern forming tool 40A (the second pattern forming tool 40B) and the surface. Fig.12 (a) shows a state where the pressure adjustment bolt 51 is screwed in as much as possible, and at this time, the side surface of the other side of the first mounting member 41 (the second mounting member 42) is in contact with the end of the first setting recess 33 (the second setting recess 35). In addition, there is a gap L of a predetermined size between the side surface of one side of the first mounting member 41 (the second mounting member 42) and the side surface of one side of the first setting recess 33 (the second setting recess 35).

[0079] exist Fig.12 (b) shows an adjustment method in which the amount of the top of the first pattern forming tool 40A (the second pattern forming tool 40B) biting into the surface of the product member 3 is reduced. In this case, if the adjustment bolt 51 is turned in the opposite direction, the first mounting member 41 (the second mounting member 42) can slide freely in the first setting recess 33 (the second setting recess 35). Therefore, first, the adjustment bolt 51 is turned in the opposite direction until the gap L of the specified size disappears.

[0080] Next, grasp the first pattern forming tool 40A (the second pattern forming tool 40B) by hand and pull it toward the side of the pressing adjustment bolt 51. After that, insert the adjustment spacer 52 into the gap L1 of the size of the side surface on the other side in such a way that the top of the first pattern forming tool 40A (the second pattern forming tool 40B) bites into the product component 3 by a predetermined amount, and screw the pressing adjustment bolt 51 in until it abuts against the side surface of the first mounting component 41 (the second mounting component 42). At this time, the total size of the gap L1 between the first mounting component 41 (the second mounting component 42) and the side surface of the first setting recess 33 (the second setting recess 35), and the gap L2 between the first mounting component 41 (the second mounting component 42) and the side surface of the other side of the first setting recess 33 (the second setting recess 35) is equal to the size described above. Fig.12 The gap L (= L1 + L2) in (a) is the same.

[0081] In addition, only one of the pressing adjustment bolts 51 may be operated, or only one pressing adjustment bolt 51 may be provided.

[0082] like Fig.13 As shown, the adjustment spacer 52 is formed of a plate finished to a predetermined thickness, and various types of plates with different thicknesses are prepared in advance for the adjustment spacer 52 so that the amount of bite of the top of the first pattern forming tool 40A (the second pattern forming tool 40B) into the product member 3 can be adjusted. The adjustment spacer 52 is formed to have a length that is substantially the same as the thickness of the first mounting member 41 (the second mounting member 42).

[0083] In addition, at the upper end of the adjustment spacer 52, as shown in FIG. Fig.13 As shown, gripping parts 53 are formed at both ends in the width direction. The gripping parts 53 are formed to hold the adjustment spacer 52 with a predetermined gripping tool (clamp) when inserting the adjustment spacer 52 into the first installation recess 33 (second installation recess 35).

[0084] Next, a method for forming the product 4 using the extrusion die 1 configured as described above is described. Prior to operation, the first pattern forming tool 40A and the second pattern forming tool 40B for forming the concavo-convex pattern Da on the surface of the product member 3 are set in the lower die 30 .

[0085] Specifically, the first pattern forming tool 40A inserts and installs the first mounting member 41 into the first setting recess 33 provided on the upper side (middle mold side) of the first lower mold 31. In addition, the second pattern forming tool 40B inserts and installs the second mounting member 42 into the second setting recess 35 provided on the lower side (back side) of the first lower mold 31. At this time, in order to make the amount by which the top of the first pattern forming tool 40A and the second pattern forming tool 40B bite into the side surface of the product member 3, that is, the height dimensions of the recess Da1 and the convex portion Da2 to be the desired dimensions, the positions of the first pattern forming tool 40A and the second pattern forming tool 40B are pre-set by pressing the adjustment bolt 51.

[0086] After the first pattern forming tool 40A is installed, the upper mold 10, the intermediate mold 20, and the first lower mold 31 are connected by connecting bolts (not shown) inserted from the back of the first lower mold 31. After the second pattern forming tool 40B is installed, the connecting bolts 38 penetrating the through holes 37a provided at four locations of the second lower mold 37 are screwed into the threaded holes 36 provided at four locations on the lower surface of the first lower mold 31, thereby fixing the second pattern forming tool 40B (see Figure 4A , Figure 8 , Fig. 8A ).

[0087] When the metal M is introduced from the container 2 into the upper die 10 in the state where the first pattern forming tool 40A and the second pattern forming tool 40B are installed as described above, and then extruded to the downstream side through the introduction hole 11, the first reservoir 21, the second reservoir 22, and the third reservoir 23, the metal M passes between the inner bearing portion 15 of the mandrel 13 of the upper die 10 and the outer bearing portion 25 of the intermediate die 20, thereby forming the outer shape of the metal M into the outer shape of the product 4 and forming the metal M into a hollow shape. The metal M formed into a hollow rectangular shape, that is, the member for product 3, is extruded to the lower die 30 side along the upper guide portion 26 of the intermediate die 20. As described above, the protrusion 27 is formed in the intermediate die 20 so as to cover the first pattern forming tool 40A provided in the lower die 30, so that the front end portion of the metal M at the start of extrusion is particularly prevented from contacting the first pattern forming tool 40A before being sandwiched between the first pattern forming tool 40A and the mandrel 13. That is, the pressing force of the first pattern forming tool 40A can be applied to a desired position of the product member 3 .

[0088] Then, the product member 3 extruded into the lower die 30 is guided in the configuration space 32 of the lower die 30 and extruded downward, and the first pattern forming tool 40A rotates along with the extrusion of the product member 3, so that the concavo-convex pattern Da is continuously formed on the facing surface of the short side of the product member 3. That is, the first pattern forming tool 40A is configured to rotate using the load that presses the metal M against the extrusion die 1.

[0089] As described above, when the top of the first pattern forming tool 40A bites into the side of the product member 3 extruded from the intermediate die 20, its pressing force is transmitted to the product member 3, so that the side is pushed to the opposite side to the first pattern forming tool 40A. Fig. 9 As shown, a gap S is provided in a wide range between the surface of the mandrel 13 facing the first pattern forming tool 40A, that is, the retreat portion 16, and the inner surface of the product member 3, so that the inner surface of the product member 3 being pushed is pressed against the retreat portion 16. That is, the pressing force of the first pattern forming tool 40A on the side of the product member 3 is absorbed by the retreat portion 16. In addition, even if a part of the product member 3 (metal M) flows to the part that has passed through the first pattern forming tool 40A due to being pressed by the first pattern forming tool 40A, the inner surface of the part that has passed through the first pattern forming tool 40A also abuts against the retreat portion 16, thereby suppressing the material from flowing to the hollow part side. As a result, the inner surface of the product member 3 can be maintained as a smooth surface. In other words, the generation of concave and convex shapes on the inner surface of the product member 3 can be suppressed.

[0090] While the product member 3 having the pattern Da formed on the facing surface on the short side by the first pattern forming tool 40A is being guided and extruded downward in the configuration space 32 of the lower die 30, the second pattern forming tool 40B that rotates along with the extrusion of the product member 3 continuously forms the concave-convex pattern Da on the surface of the product member 3 different from the surface on which the pattern Da is formed by the first pattern forming tool 40A, that is, the facing surface on the long side of the product member 3. That is, the second pattern forming tool 40B is configured to rotate using a load that presses the metal M against the extrusion die 1.

[0091] When the second pattern forming tool 40B is used to form the pattern Da on the surface facing the long side of the product member 3, when the top of the second pattern forming tool 40B bites into the side of the product member 3, its pressing force is transmitted to the product member 3, so that the side is pushed to the opposite side facing the second pattern forming tool 40B. Fig. 9AAs shown, a gap S is provided in a wide range between the surface of the mandrel 13 facing the second pattern forming tool 40B, that is, the retreat portion 16 and the inner surface of the product member 3, so that the inner surface of the product member 3 being pushed is pressed against the retreat portion 16. That is, the pressing force of the second pattern forming tool 40B on the side of the product member 3 is absorbed by the retreat portion 16. In addition, even if a part of the product member 3 (metal M) flows to the part that has passed through the second pattern forming tool 40B due to being pressed by the second pattern forming tool 40B, the inner surface of the part that has passed through the second pattern forming tool 40B also abuts against the retreat portion 16, thereby suppressing the material from flowing to the hollow part side. As a result, the inner surface of the product member 3 can be maintained as a smooth surface. In other words, the generation of concave and convex shapes on the inner surface of the product member 3 can be suppressed.

[0092] After the first pattern forming tool 40A forms the concavo-convex pattern Da on the facing surface of the short side of the product member 3 as described above, the second pattern forming tool 40B continuously forms the concavo-convex pattern Da on the facing surface of the long side of the product member 3. Then, the above operation is continued until the predetermined product length is reached.

[0093] The product 4 formed as described above is Fig.14A As shown, a pattern Da having a concavo-convex wave shape in which concave portions Da1 and convex portions Da2 are continuous is formed on the opposing surfaces on the short sides and the opposing surfaces on the long sides.

[0094] When the amount of bite by the top of the first pattern forming tool 40A and the second pattern forming tool 40B is to be changed, the upper die 10, the intermediate die 20, the first lower die 31 and the second lower die 37 are disconnected and the first lower die 31 is removed. Then, for example, when the amount of bite is to be reduced, the pressing adjustment bolt 51 is turned in the opposite direction so that the first mounting member 41 (the second mounting member) can slide in the first setting recess 33 (the second setting recess 35). Then, after the first pattern forming tool 40A (the second pattern forming tool 40B) is pulled toward the pressing adjustment bolt 51 side, a predetermined adjustment spacer 52 is inserted into the first setting recess 33 (the second setting recess 35) so as to obtain a predetermined amount of bite by the top of the first pattern forming tool 40A (the second pattern forming tool 40B), and the pressing adjustment bolt 51 is screwed in until it contacts the side surface of the first pattern forming tool 40A (the second pattern forming tool 40B).

[0095] In the embodiment, the case where the same concave-convex corrugated pattern Da is formed on different surfaces of the product 4 by the extrusion die 1 of the present invention is described, but the extrusion die 1 of the present invention is not limited to this and can be configured to form any pattern on different surfaces of the product as shown below.

[0096] (a) If Fig. 14B As shown, a concavo-convex wave-shaped pattern Da is formed on the facing surface of the short side of the product 4, a concavo-convex wave-shaped pattern Da is formed on one of the facing surfaces of the long side, and the other facing surface is formed as a pattern-free D0. In the above case, one of the facing second pattern forming tools 40B in the second pattern forming tools 40B is formed by a roller having no concavo-convex surface. With such a configuration, a concavo-convex wave-shaped pattern Da can be formed on the facing surface of the short side, a concavo-convex wave-shaped pattern Da can be formed on one of the facing surfaces of the long side, and the other facing surface can be formed as a pattern-free D0.

[0097] (b) If Fig. 14C As shown, a concavo-convex wave-shaped pattern Da is formed on one of the opposing surfaces on the short side of the product 4, and the other opposing surface is formed into a pattern-free D0. In addition, a concavo-convex wave-shaped pattern Da is formed on one of the opposing surfaces on the long side, and the other opposing surface is formed into a pattern-free D0. In the above case, one of the opposing first pattern forming tools 40A is formed by a roller having no concavo-convex on its surface. In addition, one of the opposing second pattern forming tools 40B is formed by a roller having no concavo-convex on its surface. With such a configuration, a concavo-convex wave-shaped pattern Da can be formed on one of the opposing surfaces on the short side, and the other opposing surface can be formed into a pattern-free D0, and a concavo-convex wave-shaped pattern Da can be formed on one of the opposing surfaces on the long side, and the other opposing surface can be formed into a pattern-free D0.

[0098] (c) If Fig.15 As shown, a continuous diamond pattern Db is formed on the facing surface of the short side of the product 4, and a concavo-convex wave-shaped pattern Da is formed on the facing surface of the long side. In the above case, the first pattern forming tool 40A is formed by a roller having a continuous diamond convex portion, and the second pattern forming tool 40B is formed by a roller having a top and a valley portion for forming continuous concave portion Da1 and convex portion Da2. With such a configuration, a continuous diamond pattern Db can be formed on the facing surface of the short side, and a concavo-convex wave-shaped pattern Da can be formed on the facing surface of the long side.

[0099] (d) If Fig.16As shown, a continuous diamond pattern Db is formed on one of the opposing surfaces on the short side of the product 4, and a continuous quadrilateral pattern Dc is formed on the other opposing surface. In addition, a concave-convex wave-shaped pattern Da is formed on the opposing surface on the long side. In the case described above, one of the first pattern forming tools 40A is formed by a roller having a continuous diamond convex portion, the other opposing first pattern forming tool 40A is formed by a roller having a continuous quadrilateral convex portion, and the second pattern forming tool 40B is formed by a roller having a top and a valley portion for forming continuous concave portion Da1 and convex portion Da2. By such a configuration, a continuous diamond pattern Db can be formed on one of the opposing surfaces on the short side, a continuous quadrilateral pattern Dc can be formed on the other opposing surface, and a concave-convex wave-shaped pattern Da can be formed on the opposing surface on the long side.

[0100] In addition, the concavo-convex pattern Da, diamond pattern Db, quadrilateral pattern Dc, etc. described in (a) to (d) are examples, and patterns of other shapes other than the above, such as circular patterns, triangular patterns, pentagonal patterns, polygonal patterns, etc., may also be formed. In addition, in the above embodiment, the cross section of the mandrel 13 is a rectangular shape and the cross section of the product 4 is a rectangular shape, but the shape of the product 4 is not limited to this. For example, the cross section of the mandrel 13 may be a square shape and the cross section of the product 4 may be a square shape.

[0101] According to the extrusion die 1 of the embodiment configured as described above, the concavo-convex pattern Da, the concavo-convex pattern Db, and the concavo-convex pattern Dc including the non-pattern D0 are formed on the facing surface or at least one of the facing surfaces of the product member 3 having a hollow portion, and then the pressing force generated by the second pattern forming tool 40B acts on the facing surface or at least one of the facing surfaces of the product member 3 that is different from the surface on which the pattern Da, pattern Db, and pattern Dc are formed, thereby forming the concavo-convex pattern Da, concavo-convex pattern Db, and concavo-convex pattern Dc including the non-pattern D0 on the facing surface of the product member 3. Therefore, the concavo-convex pattern Da, concavo-convex pattern Db, and concavo-convex pattern Dc including any non-pattern D0 can be continuously formed on different surfaces of the product member 3 having a hollow portion.

[0102] In addition, when the first pattern forming tool 40A and the second pattern forming tool 40B are used to form patterns Da, Db, and Dc, their pressing force is absorbed by the retreat portion 16, so that the inner surface of the component 3 for the product can be in close contact with the retreat portion 16, thereby preventing the generation of concave and convex shapes on the inner surface of the component 3 for the product or deformation of the side forming the concave and convex shapes.

[0103] In addition, the material flowing toward the hollow portion of the material flowing toward the downstream side of the product member 3 due to the pressing of the pattern forming parts of the first pattern forming tool 40A and the second pattern forming tool 40B is restricted by the escape portion 16. As a result, the inner surface of the product member 3 can be kept in close contact with the escape portion 16, thereby suppressing the generation of uneven shapes on the inner surface of the product member 3.

[0104] In addition, the first pattern forming tool 40A and the second pattern forming tool 40B can be arbitrarily combined as follows: formed by the same pattern forming tool, or including a non-pattern forming tool in which a pattern is not formed on one of the opposing surfaces of the component 3 for the product, or including a special-shaped pattern forming tool in which different patterns Da, patterns Db, patterns Dc (including no pattern D0) are formed on different surfaces of the component 3 for the product, so that any pattern Da, pattern Db, pattern Dc including no pattern D0 can be selected for forming on different surfaces of the component 3 for the product having a hollow portion.

[0105] Furthermore, the first pattern forming tool 40A and the second pattern forming tool 40B are pressed and adjusted toward the product member 3 side, thereby adjusting the pressing force of the first pattern forming tool 40A and the second pattern forming tool 40B on the product member 3, in other words, the amount of the first pattern forming tool 40A and the second pattern forming tool 40B biting into the product member 3. Therefore, the depth of the pattern Da, the pattern Db, and the pattern Dc added to the product member 3 can be appropriately adjusted. In addition, the first pattern forming tool 40A and the second pattern forming tool 40B that form different patterns Da, Db, and Dc can be easily assembled into the first lower mold.

[0106] In addition, in the above-described embodiment, the case where the material of the product is aluminum alloy is described, but the material of the product is not limited to aluminum alloy, and synthetic resins such as general plastics such as polypropylene (PP) and polyethylene (PE) or engineering plastics such as polyamide (PA) may also be used.

[0107] The extrusion die 1 of the present invention is not limited to a vertical structure in which the metal M is supplied from the upper side, and may be a horizontal structure in which the extrusion die is arranged in the horizontal direction and the metal M is supplied from the lateral direction.

Claims

1. An extrusion die for forming a patterned product, which forms patterns on different surfaces of a product component having a hollow portion formed by a thermoplastic component continuously extruded from a raw material supply side, wherein the extrusion die for forming a patterned product is characterized in that: include: an upper mold having a mandrel provided with a bearing portion for introducing the thermoplastic member and forming the thermoplastic member into a hollow shape; an intermediate mold having a bearing portion for molding the outer shape of the thermoplastic member; and a lower mold supporting the upper mold via the intermediate mold, The lower mold mold includes a first lower mold having a first pattern forming tool and a second pattern forming tool, and a second lower mold, the first pattern forming tool rotates as the product component formed by the bearing portion moves, and forms a pattern on at least one of the opposing surfaces of the product component, the second pattern forming tool rotates as the product component moves, and forms a pattern on at least one of the opposing surfaces of the product component that is different from the surface on which the pattern is formed, and the second lower mold is connected to the first lower mold to fix the second pattern forming tool.

2. The extrusion die for forming a patterned product according to claim 1, characterized in that: The first lower mold constituting the lower mold die is provided with a lower guide portion for guiding movement of the product member formed by the bearing portion. The mandrel is formed with a relief portion for absorbing a pressing force when the first pattern forming tool and the second pattern forming tool are performing pattern forming.

3. The extrusion die for forming a patterned product according to claim 2, characterized in that: The mandrel is formed to be located downstream of a position where the product member is pressed by the first pattern forming tool and the second pattern forming tool in a moving direction of the product member, The retreat portion is formed to a front end of the mandrel.

4. The extrusion die for forming a patterned product according to claim 1, characterized in that: The first pattern forming tool and the second pattern forming tool are formed by the same pattern forming tool for forming the same pattern on different surfaces of the product member.

5. The extrusion die for forming a patterned product according to claim 1, characterized in that: The first pattern forming tool and the second pattern forming tool include a non-pattern forming tool in which a pattern is not formed on one of the opposing surfaces of the product member.

6. The extrusion die for forming a patterned product according to claim 1, characterized in that: The first pattern forming tool and the second pattern forming tool include special-shaped pattern forming tools for forming different patterns on different surfaces of the product component.

7. The extrusion die for forming a patterned product according to any one of claims 1, 4 to 6, characterized in that: The first pattern forming tool and the second pattern forming tool are respectively rotatably arranged on the first lower mold so as to be press-adjustable toward the product member side.

8. The extrusion die for forming a patterned product according to claim 7, characterized in that: Both ends of the rotating shafts of the first pattern forming tool and the second pattern forming tool are rotatably supported on the first mounting member and the second mounting member via bearings, respectively. The first mounting member is arranged in a first mounting member setting recess formed on the side surface of the upper mold in the first lower mold, and the second mounting member is arranged in a second mounting member setting recess formed on the side surface of the second lower mold in the first lower mold. The first lower mold is provided with a pressing adjustment mechanism, which adjusts the pressing of the first pattern forming tool and the second pattern forming tool on the product component by sliding the first mounting member and the second mounting member in a direction orthogonal to the moving direction of the product component.

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