JP2013144368A - Mold, and mold manufacturing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To inexpensively provide a high-precision mold for structure formation, the mold requiring a shorter manufacturing time thereof, and to provide a method for manufacturing the mold.SOLUTION: A mold M includes: a first member 1 having a plate-like body 11, a through-hole 12 penetrating the body 11 from its first surface 11a through its second surface 11b opposite to the first surface, and a first groove 13 formed on the first surface 11a so that the through-hole 12 is penetrated; a second member 2 having a connection part 2a connected to the through-hole 12 of the first member 1 and a groove formation part 2b forming a second groove 14 via a clearance provided between the through-hole 12 at the side closer to the first surface 11a than the connection part 2a; and a supply hole 4 communicated with a predetermined intersection part 15 between the first and second grooves 13, 14 from the side of the second surface 11b with respect to the first and second members 1, 2.

Description

  The present invention relates to a mold for molding a structure for extruding a structure made of a ceramic material used for, for example, a catalyst carrier for purifying exhaust gas of an internal combustion engine for automobiles, a particulate purification filter, a heat storage body, etc. And a method of manufacturing a mold.

  A ceramic structure such as a catalyst is generally manufactured by mixing ceramic material powder with a binding material to form a clay and continuously extruding it through an extrusion die. Conventionally, in order to manufacture this extrusion mold, a supply hole for material supply is provided from one surface by a drill or the like, a slit groove is provided from the other surface by a processing means such as electric discharge machining, and the slit groove and the supply hole are provided. A technique for communicating is disclosed (Patent Document 1).

  In particular, when the structure has a complicated shape, slit grooves are often provided by electric discharge machining or the like. As a method of providing slit grooves by electric discharge machining, a method of producing and discharging an elongated electrode 101 by grinding or the like as shown in FIG. 16, or an electrode 102 in the machining range as shown in FIG. 17 by wire cut electric discharge machining or the like. There was a method of manufacturing and discharging.

Japanese Patent Publication No.57-61592

  However, in the method of manufacturing the elongated electrode 101 as shown in FIG. 18, when the required slit groove width is narrow, it is difficult to manufacture the electrode, and it is difficult to manufacture the mold. In the case of the electrode 102 as shown in FIG. 19, it can be used repeatedly because the thickness of the electrode can be ensured. However, the electrical discharge processability is poor and it takes time to manufacture the electrode. Further, when a complex-shaped structure is formed, it takes a long time to manufacture and the cost is high.

  The present invention has been invented in view of such a situation, and an electrode and a tool are unnecessary for forming the slit groove, and it is possible to manufacture a fine slit groove, and the manufacturing time is short. An object of the present invention is to provide a mold for forming a structure and a manufacturing method of the mold with high accuracy at a low cost.

  A mold according to the present invention is formed on the first surface so as to connect a plate-shaped main body, a through-hole penetrating from a predetermined first surface of the main body to a second surface on the opposite side, and the through-hole. A first member having a first groove, a joint portion that joins the through hole of the first member, and a second groove formed by a gap between the first surface and the through hole. A second member having a groove forming portion, a supply hole communicating from the second surface side to the first member and the second member at a predetermined intersection of the first groove and the second groove, It is characterized by providing.

  Moreover, the plate-shaped 3rd member joined to the said 2nd surface side of a said 1st member and a said 2nd member is provided.

  The second member and the third member are integrally formed by processing an integral material.

  Further, the through hole has a bonded portion having a larger cross-sectional area on the second surface side than the first surface side, and the second member has a gap with the through hole on the first surface side. A groove forming portion to be formed; and a joint portion having a larger cross-sectional area on the second surface side than the groove forming portion.

  Moreover, the said junction part and the said to-be-joined part have a drop-off prevention part with a larger cross-sectional area than the said 1st surface side in the said 2nd surface side.

  Furthermore, the manufacturing method of the metal mold | die which concerns on this invention forms the through-hole penetrated from the 1st surface of a 1st member to the 2nd surface on the opposite side of the said 1st surface, The said 1st member of the said 1st member A step of processing the first groove on the one surface side, a step of processing the second member, the second member inserted into the through hole of the first member, and the through hole and the Forming a second groove by a gap with the second member, and supplying the first member and the second member from the second surface side to a predetermined intersection of the first groove and the second groove. And a step of communicating the holes.

  Moreover, it has the process of joining a plate-shaped 3rd member to the said 2nd surface side of a said 1st member and a said 2nd member.

  As described above, according to the mold and the mold manufacturing method of the present invention, the manufacturing time is short, the cost is low, and the mold for molding a structure is highly accurate. It becomes possible to provide.

It is the schematic of the metal mold for structure forming of this embodiment. It is a figure which shows the 1st process of 1st Embodiment of the manufacturing method of the metal mold | die for structure shaping | molding. FIG. 3 is a plan view and a cross-sectional view of FIG. 2. It is a figure which shows the 2nd process of 1st Embodiment of the manufacturing method of the metal mold | die for structure shaping | molding. It is the top view and sectional drawing of FIG. It is a figure which shows the 3rd process of 1st Embodiment of the manufacturing method of the metal mold | die for structure shaping | molding. It is the top view and front view of FIG. It is a figure which shows the 4th process of 1st Embodiment of the manufacturing method of the metal mold | die for structure shaping | molding. It is the top view and sectional drawing of FIG. It is a figure which shows the 5th process of 1st Embodiment of the manufacturing method of the metal mold | die for structure shaping | molding. It is a figure which shows the other example of the 2nd member. It is a figure which shows the other example of the 2nd member. It is a figure which shows the 3rd process of 2nd Embodiment of the manufacturing method of the metal mold | die for structure shaping | molding. It is the top view and sectional drawing of FIG. It is a figure which shows the 4th process of 2nd Embodiment of the manufacturing method of the metal mold | die for structure shaping | molding. It is the top view and sectional drawing of FIG. It is a figure which shows the 5th process of 2nd Embodiment of the manufacturing method of the metal mold | die for structure shaping | molding. It is a figure which shows the prior art. It is a figure which shows the prior art.

  First, the structure molding die of this embodiment will be described. FIG. 1 is a schematic view of a mold for forming a structure according to this embodiment. FIG. 1A is a plan view of a structure molding die. FIG.1 (b) is AA sectional drawing of Fig.1 (a).

  As shown in FIG. 1, the structure molding die M of this embodiment includes a plate-shaped main body 11, a through hole 12 that penetrates from a predetermined first surface 11 a of the main body 11 to a second surface 11 b on the opposite side, and The first member 1 having the first groove 13 formed in the first surface 11a so as to connect the through hole 12, the joint portion 2a that joins the through hole 12 of the first member 1, and the first portion than the joint portion. The second member 2 having the groove forming portion 2b that forms the second groove 13 by the gap with the through hole 12 on the surface 11a side, and the first intersecting portion 15 of the first groove 13 and the second groove 14 are first. And a supply hole 4 communicating with the member 1 and the second member 2 from the second surface 11b side.

  Moreover, it is preferable to provide the plate-shaped third member 3 joined to the second surface 11b side of the first member 1 and the second member 2.

  Next, a method for manufacturing the structure forming mold M will be described.

  First, a first embodiment of a method for manufacturing a structure forming mold M will be described.

  Drawing 2 is a figure showing the 1st process of a 1st embodiment of a manufacturing method of a metallic mold for structure fabrication. 3 is a plan view and a cross-sectional view of FIG. FIG. 3A is a plan view of FIG. FIG.3 (b) is BB sectional drawing of Fig.3 (a).

  In 1st Embodiment, as shown in FIG.2 and FIG.3, the 1st process which processes the through-hole 12 which penetrates a 2nd surface from the 1st surface of the main body 11 of the 1st member 1 first is performed. In the first embodiment, the through holes 12 are formed into regular hexagons by cutting, electric discharge machining, or the like, and are arranged equally.

  Next, the second step will be described. FIG. 4 is a diagram showing a second step of the first embodiment of the method for manufacturing a structure-forming mold. FIG. 5 is a plan view and a cross-sectional view of FIG. FIG. 5A is a plan view of FIG. FIG.5 (b) is CC sectional drawing of Fig.5 (a).

  In the second step, as shown in FIG. 4, the first groove 13 is formed in the first surface 11 a of the main body 11 in which the through hole 12 is processed. The first groove 13 is preferably formed in a direction connecting the opposing vertices of the through hole 12. In the first embodiment, since a regular hexagon is formed as the through hole 12, the first groove 13 is formed in a direction connecting the opposite vertices of the regular hexagon. As shown in FIG. 5, when the fourth vertex 12d facing the first vertex 12a, the fifth vertex 12e facing the second vertex 12b, and the sixth vertex 12f facing the third vertex 12c are formed in the connecting direction, respectively. preferable. The first groove 13 is formed by cutting or electric discharge machining.

  Next, the third step will be described. FIG. 6 is a diagram showing a third step of the first embodiment of the method for manufacturing the structure-forming mold. 7 is a plan view and a cross-sectional view of FIG. FIG. 7A is a plan view of FIG. FIG. 7B is a front view of FIG.

  In the third step, the pin 2 as the second member to be inserted into the through hole 12 of the main body 11 is formed. As shown in FIGS. 6 and 7, the pin 2 has substantially the same shape and size as the through-hole 12 and is joined to the through-hole 12 than the through-hole 12 and the joint 2 a. A groove forming portion 2b having a small cross-sectional area and substantially the same shape, and preferably having the same height as the depth of the first groove 13; The pin 2 is formed by cutting, grinding or pressing. Since the pin 2 can be processed separately from the main body 11, even a complicated shape can be processed in a short time. The pin 2 may be formed in advance before the first step and the second step.

  Next, the fourth step will be described. FIG. 8 is a diagram showing a fourth step of the first embodiment of the method for manufacturing the structure-forming mold. 9 is a plan view and a cross-sectional view of FIG. FIG. 9A is a plan view of FIG. FIG.9 (b) is DD sectional drawing of Fig.9 (a).

  In the fourth step, as shown in FIG. 8, the pin 2 is inserted into the through hole 12 of the main body 11 to join the main body 11 and the pin 2. Further, a plate-like base plate 3 as a third member is joined to the joined body 2 and the joining portion 2 a side of the pin 2. By joining the main body 11, the pin 2 and the base plate 3, a new regular hexagonal second groove 14 is formed by the inner wall of the through hole 12 and the outer wall of the groove forming portion 2 b of the pin 2. Therefore, a large number of regular hexagonal first grooves 13 and second grooves 14 regularly arranged are formed by the first grooves 13 and the second grooves 14.

  Note that. The main body 11, the pin 2 and the base plate 3 are preferably bonded by diffusion bonding, pulse current bonding, ultrasonic bonding, or the like. The base plate 3 may not be used, but by joining the base plate 3, the pins 2 can be joined more firmly. Moreover, it becomes possible to reduce the extrusion pressure concerning the pin 2 by joining the base plate 3. FIG.

  Next, the fifth step will be described. FIG. 10 is a diagram showing a fifth step of the first embodiment of the method for manufacturing the structure-forming mold. FIG. 10A is a plan view in the fifth step. FIG.10 (b) is EE sectional drawing of Fig.10 (a).

  In the fifth step, as shown in FIG. 10, the supply hole 4 for material supply is drilled from the surface opposite to the pin 2 from the base plate 3 to the predetermined intersection 15 of the first groove 13 and the second groove 14. Etc. are provided. In the first embodiment, the supply hole 4 is a position corresponding to the first vertex 12a, the third vertex 12c, and the fifth vertex 12e of the through hole 12, passes through the joint portion 2a of the pin 2, and intersects the portion 15. Provide to reach.

  With the manufacturing method according to the first embodiment, it is possible to easily and accurately manufacture the structure molding die M as shown in FIG.

  In the first embodiment, the shape of the pin 2 is a stepped shape. However, the shape is not limited to this, and may be another shape. 11 and 12 are diagrams showing another example of the pin 2 as the second member.

For example, as shown in FIG. 11, the joining portion 2a and the joined portion 12 ₁ have a flange portion 2a ₁ as a drop-off preventing portion having a larger sectional area than the first surface 11a side on the second surface 11b side. It may be formed. The flange portion 2a ₁ is closer to the second surface 11b than the joint portion 2a and has a larger cross-sectional area than the joint portion 2a. In this case, provision of the bonding portion 12 ₁ for bonding corresponding to the flange portion 2a ₁ the through hole 12 of the body 11. As described above, by providing the flange portion 2a ₁ , it is possible to prevent dropping due to the extrusion pressure when the mold is used.

Further, as shown in FIG. 12, the joint 2a and the bonding portion 12 _1, so as to have a tapered portion 2a ₂ of the disengagement prevention part is larger cross-sectional area than the first surface 11a side to the second surface 11b side It may be formed. In this case, provision of the bonding portion 12 ₁ for joining in correspondence with the tapered portion 2a ₂ into the through hole 12 of the body 11. Thus, by providing the taper portion 2a ₂ at the joint portion 2a, it is possible to prevent the drop due to the extrusion pressure when using the mold.

  Next, a second embodiment of the method for manufacturing the structure forming mold M will be described.

  In the second embodiment, as in the case of the first embodiment shown in FIGS. 2 and 3, first, a first step of processing the through hole 12 in the main body 11 of the first member 1 is performed. In the second embodiment, the through holes 12 are formed into regular hexagons by cutting, electric discharge machining, or the like, and are arranged equally.

  Next, in the second step, as in the first embodiment, as shown in FIG. 4, the first groove 13 is formed in the first surface 11 a of the main body 11 in which the through hole 12 is processed. The first groove 13 is preferably formed in a direction connecting the opposing vertices of the through hole 12. In the first embodiment, since a regular hexagon is formed as the through hole 12, the first groove 13 is formed in a direction connecting the opposite vertices of the regular hexagon. As shown in FIG. 5, when the fourth vertex 12d facing the first vertex 12a, the fifth vertex 12e facing the second vertex 12b, and the sixth vertex 12f facing the third vertex 12c are formed in the connecting direction, respectively. preferable. The first groove 13 is formed by cutting or electric discharge machining.

  Next, the third step will be described. FIG. 13 is a diagram illustrating a third step of the second embodiment of the method for manufacturing the structure-forming mold. 14 is a plan view and a cross-sectional view of FIG. FIG. 14A is a plan view of FIG. FIG.14 (b) is FF sectional drawing of Fig.14 (a).

  In the second embodiment, the pin 2 as the second member and the base plate 3 as the third member of the first embodiment shown in FIG. 9 are integrally formed. That is, the pin 2 and the base plate 3 are integrally molded as a pin-equipped base 6 by processing an integral material.

  In the third step, the pin-equipped base 6 is formed as a second member to be inserted into the through hole 12 of the main body 11. The pin-equipped base 6 includes a plate-like base portion 61 and a plurality of pin-like portion pin portions 62 protruding from the base portion 61. As shown in FIGS. 13 and 14, the pin portion 62 of the base 6 with the pin has a smaller sectional area than the through hole 12 and can be joined to the through hole 12 with substantially the same shape as the through hole 12. The pin portion 62 is formed by cutting, grinding, pressing, or the like. Since the pin portion 62 can be processed separately from the main body 11, even a complicated shape can be processed in a short time. In addition, you may form the base 6 with a pin previously before a 1st process and a 2nd process.

  Next, the fourth step will be described. FIG. 15 is a diagram showing a fourth step of the first embodiment of the method for manufacturing the structure-forming mold. 16 is a plan view and a cross-sectional view of FIG. FIG. 16A is a plan view of FIG. FIG.16 (b) is GG sectional drawing of Fig.16 (a).

  In the fourth step, as shown in FIGS. 15 and 16, the pin portion 62 is inserted into the through hole 12 of the main body 11, and the main body 11 and the pinned base 6 are joined. By joining the main body 11 and the pinned base 6, a new regular hexagonal second groove 14 is formed by the inner wall of the through hole 12 and the outer wall of the pin portion 62. Therefore, a large number of regular hexagonal first grooves 13 and second grooves 14 regularly arranged are formed by the first grooves 13 and the second grooves 14.

  Note that. The main body 11 and the pinned base 6 are preferably bonded by diffusion bonding, pulse energization bonding, ultrasonic bonding, or the like. By joining the base plate 3, the pins 2 can be joined more firmly. Moreover, it becomes possible to reduce the extrusion pressure concerning the pin 2 by joining the base plate 3. FIG.

  Next, the fifth step will be described. FIG. 16 is a diagram showing a fifth step of the first embodiment of the method for manufacturing the structure-forming mold.

  In the fifth step, as shown in FIG. 16, the supply hole 4 for material supply is drilled from the surface opposite to the pin 2 from the base plate 3 to the predetermined intersection 15 of the first groove 13 and the second groove 14. Etc. are provided. In the second embodiment, the supply hole 4 is a position corresponding to the first vertex 12a, the third vertex 12c, and the fifth vertex 12e of the through-hole 12, passes through the joint 2a of the pin 2, and intersects 15 Provide to reach.

  With such a manufacturing method of the second embodiment, it becomes possible to manufacture a structure-forming mold M as shown in FIG.

  In the present embodiment, the through hole 12 is a regular hexagon. However, the present invention is not limited to this, and a plurality of polygons may be used. In this case, the first groove 13 is preferably connected to a predetermined vertex of another through-hole 12 from the vertex of the predetermined through-hole 12 in a direction connecting the apexes that are not adjacent to each other.

  With such a mold manufacturing method, the manufacturing time can be shortened, and the mold for forming the structure can be highly accurate with low cost.

  Each of the above embodiments can be variously modified according to the configuration of the claims.

DESCRIPTION OF SYMBOLS 1 ... 1st member 11 ... Main body 11a ... 1st surface 11b ... 2nd surface 12 ... Through-hole 12 ₁ ... Joined part 13 ... 1st groove | channel 14 ... 2nd groove | channel 15 ... Intersection 2 ... Pin (2nd member)
2a ... joint 2a ₁ ... flange portion 2a ₂ ... tapered portion 2b ... groove forming portion 3 ... base plate (third member)
4 ... Supply hole 6 ... Base with pin (second member)

Claims (7)

A plate-shaped main body, a through-hole penetrating from a predetermined first surface of the main body to a second surface on the opposite side, and a first groove formed in the first surface so as to connect the through-hole. Members,
A second member having a joint part that joins the through hole of the first member and a groove forming part that forms a second groove by a gap with the through hole on the first surface side from the joint part;
A supply hole that communicates with the first member and the second member from the second surface side at a predetermined intersection of the first groove and the second groove;
A mold characterized by comprising. The mold according to claim 1, further comprising a plate-like third member joined to the second surface side of the first member and the second member. The mold according to claim 2, wherein the second member and the third member are integrally formed by processing an integral material. The through hole is
The second surface side has a bonded portion having a larger cross-sectional area than the first surface side,
The second member is
A groove forming portion that forms a gap with the through hole on the first surface side;
A joint portion having a larger cross-sectional area on the second surface side than the groove forming portion;
The mold according to any one of claims 1 to 3, characterized by comprising: The mold according to claim 4, wherein the joining portion and the joined portion include a drop-off preventing portion having a larger cross-sectional area on the second surface side than on the first surface side. Forming a through-hole penetrating from the first surface of the first member to the second surface opposite to the first surface;
Processing a first groove on the first surface side of the first member;
Processing the second member;
Inserting the second member into the through hole of the first member and forming a second groove on the first surface side by a gap between the through hole and the second member;
Communicating a supply hole from the second surface side to the first member and the second member at a predetermined intersection of the first groove and the second groove;
The manufacturing method of the metal mold | die characterized by having. The mold manufacturing method according to claim 6, further comprising a step of bonding a plate-like third member to the second surface side of the first member and the second member.

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