JP3040994B1 - Processing mold for metal fittings - Google Patents

Abstract

An object of the present invention is to provide a processing die in which a flat metal fitting body after forming a buffer layer can be bent. SOLUTION: In a first mold 27, a storage recess in which a fitting body fits is formed, and a first filling groove 27d is formed. The second mold 29 overlaps with the first filling groove 27d.
Is formed. The first and second molds 27 and 29 are horizontally inserted into the insertion portion 31e provided in the base mold 31. The frame mold 33 overlaps the base mold 31 and surrounds the first and second filling grooves 27d and 29b. The pressing portion 35a of the pressing die 35 is fitted to the space 33a of the frame die 33, and is overlapped. While the pressing mold 35 and the first and second molds 27 and 29 are heated, the hard rubber mass 39 is placed on the first and second filling grooves 27d and 29b, and the pressing mold 35 is pressed. 1st, 2nd
Are filled in the filling grooves 27d and 29b, and a buffer layer is formed on the outer periphery of the metal fitting body 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a processing die for a metal fitting, and more particularly to an improvement in a processing die used for processing a support metal (clip) for supporting pipes for piping and wiring.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 18, this type of metal fitting is formed by punching a rectangular metal fitting body 7 having screw holes 1 and 3 at both ends and a through hole 5 extending in the middle in the longitudinal direction from a steel plate. A curved portion 9 is formed by bending the middle part of the metal fitting body 7 so that both ends of the screw holes 1 and 3 face each other, and as shown in FIG. Has a configuration in which the buffer layer 11 made of is fixed.

As shown in FIG. 20, such a support fitting is inserted through the outer periphery of a pipe 13 so that screw holes 1 and 3 are aligned.
A screw 15 is inserted into this and screwed into, for example, a wall 17 for use.

In order to manufacture such a fitting,
As shown in FIGS. 21 and 22, a plurality of bottomed storage grooves 21 having the same shape as the outer diameter shape of the curved metal fitting body 7 are formed in the thick plate-shaped molding die 19 and fixed. An arc-shaped wide portion 21a in which a portion corresponding to the buffer layer 11 is widened to some extent is provided in the storage groove 21, and the metal fitting body 7 shown in FIG. 18 is stored in the storage groove 21, heated and fluidized. Hard rubber (not shown) was poured from the upper surface of the molding die 19 to fill the wide portion 21a, and after cooling and solidification, the metal fitting body 7 was taken out of the molding die 19 to produce the support metal fitting shown in FIG. .

[0005]

However, this type of fitting must be curved or formed in an arc shape in accordance with the cross-sectional shape of the pipe to be supported, and is punched from a steel plate. If the buffer layer 11 is formed and fixed from the hard rubber or the like to the outer periphery of the metal fitting body 7 before the bending process, the support metal cannot be formed in a curved shape, or cracks are formed due to the stress generated in the buffer layer 11 and are easily damaged. The arc-shaped buffer layer 11 is formed by housing the metal fitting body 7 previously curved as described above in the molding die 19.

For this reason, it is extremely troublesome to form the storage groove 21 with the wide portion 21a for storing the metal body 7 which has been previously bent, and the work for taking out the metal body 7 which has been previously bent into the storage groove 21 and taking it out. The work was also very complicated.

[0007] Therefore, after the buffer layer 11 is formed and fixed to the flat metal body 7 before the bending process, a metal mold is provided which can form a curved support metal and does not cause cracks in the buffer layer 11. Was desired.

The present invention has been made under such circumstances, and an object of the present invention is to provide a processing die capable of forming a curved portion of a metal fitting even after a buffer layer is formed and fixed on a flat metal fitting main body. .

[0009]

SUMMARY OF THE INVENTION In order to solve such a problem, the present invention provides a support for supporting a flat plate-like metal fitting, and a support for supporting the flat metal fitting so as to be positioned outside the metal support. A plurality of first filling grooves in which a cushioning material that is formed and solidified after being fluidized are formed in parallel with one main surface at a predetermined interval, and a first mold and a first mold that contacts the one main surface. A second mold having a main contact surface, the plurality of second molds being filled with the cushioning material;
And a second mold formed in parallel with the main contact surface of the first mold so that the filling groove is aligned with the first filling groove, and the first and / or second mold has an external mold. From the first and second
And a plurality of inflow holes for communicating the fluidized buffer material into the first and second filling grooves.

In the present invention, it is preferable that the supporting portion for supporting the metal fitting is a storage recess in which the metal fitting is fitted.

Further, the present invention provides a frame mold having a through-hole surrounding the inflow hole so as to expose the periphery thereof, and a buffer material inserted into the space and placed in the inflow hole, by using the first and the second cushioning members. A configuration including a pressing die for press-fitting into the second filling groove is also possible.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. Note that the same reference numerals are given to portions common to the conventional example. First, a support fitting processed by the processing die of the present invention will be described with reference to FIGS.

In FIG. 1, a rectangular metal fitting body 7 has screw holes 1 and 3 at both ends and a through hole 5 extending in the middle in the longitudinal direction, and is formed, for example, by punching from a steel plate. Reference numeral 23 denotes a cutout portion of the metal fitting body 7, which functions as a positioning member when mounted on a metal mold, as described later.

As shown in FIGS. 2 to 4, the metal fitting body 7 includes, for example, hard rubber, soft rubber, thermosetting synthetic resin,
A buffer layer 25 made of a thermoplastic synthetic resin or other well-known elastic material is formed so as to be fixed to the outer periphery of the central portion in the longitudinal direction.

The buffer layer 25 has a plurality of buffer ridges 25a extending annularly around the outer periphery of the metal fitting body 7 in a direction perpendicular to the longitudinal direction of the metal fitting body 7, and the through hole 5 is also the same. The plurality of cushioning ridges 25a are connected by the same material layer which is filled with the material and thinly adhered to the outer peripheral surface of the metal fitting body 7.

The processing die according to the present invention relates to a die for processing the metal fittings shown in FIGS. 2 to 4 from the metal fitting body 7 shown in FIG.

FIG. 5 is a perspective view showing a state in which the support fitting of FIG. 5 is formed into a curved shape after processing and used for actual pipe support.

FIGS. 6 to 11 are views showing an embodiment of a processing die according to the present invention.

The processing die according to the present invention comprises first and second dies 27, 29, a base die 31, a frame die 33, and a pressing die 35, for example. It is formed of steel or a conventionally known material.

The first mold 27 is formed in a rectangular parallelepiped shape as shown in FIG. 6, and has one side surface extending in the longitudinal direction in a horizontal state as a main surface 27a. A storage recess 27b in which the metal fitting body 7 fits is formed so as to extend in the longitudinal direction at a depth corresponding to the thickness (not shown).

A protrusion 27c, into which the screw holes 1 and 3 of the metal fitting body 7 fit, protrudes from a portion close to both ends in the longitudinal direction of the storage recess 27b with a length corresponding to the thickness of the metal fitting body 7. Storage recess 27
A plurality of first filling grooves 27d are formed in a central portion at both ends in the longitudinal direction of b in a direction parallel to the longitudinal direction and deeper than and parallel to the storage recess 27b so as to reach an opposing side surface adjacent to the main surface 27a. Is formed.

The first filling groove 27d is
When the metal fitting main body 7 is stored in the metal fitting body b, a part of the buffer ridge 25a is formed outside the metal fitting main body 7. In the first mold 27 in the horizontal state, locking holes 27e for locking positioning locking pins 31a protruding from the base mold 31 are formed at both ends of the lower surface hidden in FIG. (See FIG. 9). Reference numeral 27f indicates the metal fitting body
Notch formed so as to be aligned with the notch 23 of FIG.

The second mold 29 is formed in a rectangular parallelepiped shape like the first mold 27, extends in the longitudinal direction in a state of being placed horizontally, and comes into contact with the main surface 27a of the first mold 27. It has a flat contact main surface 29a. Main surface 2 of second mold 29
As shown in FIG. 7, a second filling groove 29b having the same shape as the first filling groove 27d traverses the longitudinal direction at the center in the longitudinal direction at 9a, and is parallel to the first filling groove 27d. And is formed so as to reach both opposing side surfaces adjacent to the main surface 29a.

The second filling groove 29b is
When the metal fitting main body 7 is stored in the metal fitting main body 7b, it is a portion forming a part of the above-mentioned buffer ridge 25a on the outside of the metal fitting main body 7, and the first and second filling grooves 27d, 2
Buffer layer 25 including buffer ridge 25a described above by 9b
Is formed.

In the second mold 29 which is placed horizontally, the base molds 31 are provided at both ends of the lower surface which are hidden in FIGS.
It is formed in a locking hole 29c in which a positioning locking pin 31b protruding from the locking hole 29c is locked (see FIG. 8).

The base mold 31 is provided with a pair of guide walls 31 facing each other.
An insertion portion 31e is provided between c and 31d, and the insertion portion 31e corresponds to a cross section in a state where the main surfaces 27a and 29a of the first and second dies 27 and 29 placed horizontally are in contact with each other. It has a cross-sectional shape, and the first and second dies 27 and 29 are inserted into the insertion portion 31e.

As shown in FIG. 9, the above-mentioned locking pins 31a and 31b project from both ends at the bottom of the insertion portion 31e, and the metal fitting main body 7 extends from the notch 27f of the first mold 27. A positioning pin 31f reaching the notch 23 is protruded.

The base mold 31 includes first and second molds 2.
7 and 29 are formed in such a size that they protrude from both ends thereof, so that attachment / detachment to / from the base mold 31 is facilitated. It is connected to a power supply (see FIG. 12).

As shown in FIG. 11, the frame mold 33 comes into contact with the guide walls 31c and 31d of the base mold 31 and the first and second molds 27 and 29, as well as the first and second fillings. It has a space 33a surrounding the grooves 27d, 29b, and also has a locking hole (not shown) in which a locking pin protruding from the top of the guide walls 31c, 31d fits.

The pressing mold 35 is provided in the space 33a of the frame mold 33.
The pressing portion 35a having the same shape as that of FIG.
It protrudes with a projection size slightly larger than the thickness dimension of 3,
By pressing the pressing portion 35a into the cavity 33a, the pressing portion 35a comes into contact with the first and second molds 27 and 29 and
And the second filling grooves 27d and 29c are closed.
It overlaps with the frame mold 33. This pressing mold 3
5, a heater 37b is also buried and connected to an external commercial power supply (see FIG. 12).

Next, an example of use of the processing die according to the present invention will be briefly described. While preparing the metal fitting body 7 as shown in FIG. 1 in advance, commercial power is supplied to the heaters 37a and 37b embedded in the base mold 31 and the pressing mold 35 to heat them.

The metal fitting body 7 is fitted into the housing recess 27b of the first mold 27 so that the screw holes 1 and 3 are fitted into the projections 27c, and as shown in FIG. The first and second molds 27 and 29 are aligned so that the main surface 29a of the mold 29 abuts.

The first and second dies 27, 29
As shown in FIGS. 9 to 11, these locking holes 27
The pins 31a and 31b of the base metal fitting 31 are inserted into the insertion portion 31e such that the pins 31a and 31b of the base metal fitting 31 are inserted into e and 29c.

Thereafter, the frame molds 33 are stacked as shown in FIGS. 11 and 12, and first and second
After the hard rubber block 39 is placed on the filling grooves 27d and 29c, the pressing die 35 is overlapped with the pressing portion 35a in the space 33a of the frame die 33, and the hard rubber block 39 is heated and pressed.

Then, while the hard rubber mass 39 is fluidized by heating, the first and second filling grooves 27d and 29c themselves become the inflow holes by pressurization, and the hard rubber mass 39 is divided into the first and second hard grooves. The filling grooves 27d and 29c are filled.
The heating temperature and the pressing force are determined by the material of the hard rubber mass 39, but are 80 to 160 ° C. and 50 to 500 ton /
m ² is preferable.

After a predetermined time has elapsed, the pressing mold 3
5 and the frame mold 33 are removed, and the first and second molds 2 are removed.
After appropriately removing the hard rubber remaining on the upper and lower parts 7 and 29, the first and second molds 27 and 29 are removed from the base metal part 31, and the metal body 7 is removed from the first metal part 27. ,
The metal fitting as shown in FIG. 2 is completed. After that, it may be appropriately curved and commercialized as shown in FIG.

As described above, the processing die according to the present invention is provided on the main surface 27a of the first die 27 in the storage recess 2 in which the metal fitting body 7 fits.
7b, and a plurality of first filling grooves 27d are formed in a central portion in the longitudinal direction thereof so as to cross the recesses.
b, the main surface 27a of the second mold 29
A second filling groove 29b having the same shape as the first filling groove 27d.
The base mold 31 is provided with an insertion portion 31e for inserting the first and second molds 27 and 29 abutting horizontally, and the frame mold 33 is provided with the insertion portion 31e. Base mold 3
1, a cavity 33a surrounding the first and second filling grooves 27d and 29b is provided, and the pressing mold 35 has the cavity 33a.
Since the pressing portion 35a that fits is provided, the hard rubber mass 39 is placed on the first and second filling grooves 27d and 29b while the first and second dies 27 and 29 are heated, and the pressing dies 35 Is pressed, dispersed bumps 25a serving as buffer layers 25 are formed on the outer periphery of the fitting body 7.

Therefore, even if the buffer layer 25 is formed on the flat metal body 7 before the bending process, the buffer layer 25 composed of the buffer ridges 25a dispersed and formed at predetermined intervals is easily deformed, and the metal body 7 is formed. The bending process itself is extremely easy, and the buffer layer 25 is hardly damaged.

Moreover, since the flat metal body 7 before the bending process can be stored, the manufacturing process of the metal mold becomes extremely simple, and the storage and removal of the metal body 7 from the metal mold are also easy. In the processing die of the present invention, the base die 31, the frame die 33, and the pressing die 35 are not necessarily required, and the processing die can be implemented only with the first and second dies 27 and 29.

Further, first and second molds 27,
The heaters 37a and 37b are not necessarily required if the hard rubber 29 is heated and the fluidized hard rubber is poured. In the processing die described above, the buffer ridge 25a having a small width is formed on the outer periphery of the metal fitting body 7;
The width of 5a is arbitrary.

For example, as shown in FIG. 13, it is also possible to form buffer ridges 25b wider than those in FIG. 2 at predetermined wide intervals on the metal fitting body 7, and as shown in FIG. May be formed by dispersing the through-holes 5a at positions corresponding thereto. In the processing die of the present invention, the first and second
And second filling grooves 2 formed in the molds 27 and 29 of FIG.
What is necessary is just to form the width and position of 7d and 29b wide according to it.

In addition, the first and second molds 27, 29
The first and second filling grooves 27d, 29b formed in
The bottom width in the longitudinal direction of the metal fitting body 7 can be tapered, and the first and second filling grooves 27d, 2d can be formed.
It is also possible to vary the depth of 9b.

By the way, in the processing die of the present invention described above, an example was described in which the metal fitting body 7 was placed vertically and processed.
In the present invention, as shown in FIGS. 15 to 17, a configuration in which the metal fitting main body 7 is placed horizontally and processed is also possible.

That is, the first and second molds 41, 4
3. It has a pressing mold 45, which is made of, for example, steel or a conventionally known material. The first mold 41 is formed in a plate shape, and as shown in FIG. 15, the main body 41 (not shown) has a depth corresponding to the thickness of the main body 7 (not shown) on the main surface 41a in a horizontal state. A receiving recess 41b is formed in the recess 41b.

A protrusion 41c, into which the screw holes 1 and 3 of the metal fitting body 7 fit, protrudes at a portion corresponding to the thickness of the metal fitting body 7 at a portion near both ends in the longitudinal direction of the housing concave part 41b.
A plurality of first filling grooves 41d which are wide so as to cross the longitudinal direction are provided in the central portions at both ends in the longitudinal direction of the storage recess 41b.
It is recessed deeper, parallel, and longer than the width of the storage recess 41b.

The second mold 43 has a shape similar to, for example, the base mold 31 described above, which overlaps the first mold 41.
As shown in FIG. 16 and FIG.
As shown in FIG. 7, a second filling groove 43a having the same shape as the first filling groove 41d is recessed in parallel so as to overlap with the first filling groove 41d.

The characteristic part of the second mold 43 has a wide concave portion 43b and the concave portion 4b.
The point is that it has a plurality of inflow holes 43c extending from the bottom of 3b to each second filling groove 43a.

In the pressing die 45, a pressing portion 45a that fits into the concave portion 43b projects in a substantially same shape as the concave portion 43b and with a protruding dimension slightly larger than its depth.
Is fitted into the concave portion 43b so that the pressing portion 45a closes the inflow hole 43c, and the pressing portion 45a overlaps the second mold 43.

The first die 41 and the pressing die 45
Also, a heater (not shown) is embedded and connected to an external commercial power supply, and the first and second molds 41,
A locking pin and a locking hole for positioning the locking die 43 and the pressing mold 45 are formed, but are not shown for convenience.

In such a processing die, the first die 41
The fitting body 7 is housed in the storage recess 41b formed in the main surface 41a of the
The second mold 43 is overlapped from above, and the inflow hole 4 is formed at the bottom of the concave portion 43b of the second mold 43.
A hard rubber mass (not shown) is placed so as to cover 3c, the pressing portion 45a is fitted into the concave portion 43b, and the pressing portion 45a is stacked on the second die 43, and the first die 41 and the pressing die When the mold 45 is heated to press the pressing mold 45, the hard rubber mass is fluidized and flows from the inflow hole 43c into the first and second filling grooves 41d and 43c to be filled therein, as shown in FIG. Metal fittings can be manufactured.

In addition, the mold having this configuration can be constituted by the first and second molds 41 and 43 and the pressing mold 45, and the above-described base mold 31 and frame mold 33 are not required. The structure is simplified and the first and second molds 4
The processing can be performed by overlapping the pressing molds 1, 43 and the pressing mold 45 in order. On the other hand, by removing the pressing die 45 in the reverse order, the metal fitting body 7 can be removed, and the processing is simple.

Further, in the processing die of the present invention, it is not necessary to provide the storage recesses 27 b and 41 b for supporting the metal fitting body 7 in the first die 27 and 41,
It is also possible to use c and 41c as the support. In short, the object of the present invention can be achieved if a support portion for supporting the metal fitting body 7 is provided.

In the processing die of the present invention, the buffer layer 2
5 is not limited to an example in which the cushioning ridges 25a and 25b are formed in a direction perpendicular to the longitudinal direction of the metal fitting main body 7, but may be formed in an oblique direction in the longitudinal direction.
May be formed so as to protrude from the outer periphery of the fitting body 7.
Is not limited to a rectangular plate shape. Furthermore, the processing die of the present invention is not limited to the configuration in which one metal fitting body 7 is processed, but may be configured to simultaneously process a plurality of pieces.

For example, the first and second molds 2 shown in FIG.
The base mold 31 is formed so that a plurality of sets 7 and 29 can be inserted into the insertion portion 31 e of the base mold 31, and the second filling groove 29 b is formed on the opposing main surface of the first mold 27. The first filling groove 27d is formed in a positional relationship with the back surface, and this mold is used as the first mold, and the other mold of the same kind may be used as the second mold. Become.

It is also possible to form a plurality of first and second filling grooves in the first and second molds 41 and 43 shown in FIGS.

In the above-described embodiment, the processing of the support fitting for supporting pipes has been described as an example. However, the processing mold according to the present invention may be used as a wire, a rod, a cord, and other fasteners. It is applicable to the processing of metal fittings to be used.

[0057]

As described above, the working mold of the present invention embeds a support portion for supporting a metal fitting and a cushioning material which is formed deeper than the metal fitting supported by the support portion and solidified after being fluidized. A first mold in which a plurality of first filling grooves are formed in parallel on one main surface at a predetermined interval, and a second mold having a contact main surface in contact with the one main surface; And a second mold formed in parallel with the contact main surface so that a plurality of second filling grooves embedded in the first and second filling grooves are aligned with the first filling groove. The mold is connected to the first and second filling grooves from the outside, and the fluidized cushioning material is supplied to the first and second filling grooves.
Since a plurality of inflow holes for inflow into the filling groove are formed, the buffer layer can be formed and fixed on the flat metal body with a simple mold configuration, and the curved shape can be formed even after the buffer layer is formed. Metal fittings can be obtained. In addition, the configuration in which the storage recess in which the fitting fits is provided as the supporting portion for supporting the fitting has an advantage that the holding or supporting of the fitting is simple and reliable. Further, a frame mold having a through-hole surrounding the inflow hole so as to expose the periphery of the inflow hole from the outside, and the cushioning material inserted into the through-hole of the mold and placed in the inflow hole are provided with the first and second frames. And a pressing die for press-fitting into the filling groove, the cushioning material can be reliably filled with a simple structure.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a fitting main body used for a processing die according to the present invention.

FIG. 2 is a front view showing a bracket processed by a processing die according to the present invention.

FIG. 3 is a cross-sectional view (a cross section taken along line AA in FIG. 2) showing a bracket processed by a processing die according to the present invention.

FIG. 4 is a cross-sectional view (a cross section taken along line BB in FIG. 3) showing a metal fitting processed by a processing die according to the present invention.

FIG. 5 is a perspective view showing a final form of the metal fitting processed by the processing die according to the present invention.

FIG. 6 is an exploded perspective view of a main part showing an embodiment of a processing die according to the present invention.

FIG. 7 is a perspective view showing a second mold in FIG. 6;

FIG. 8 is a bottom view showing first and second molds in FIG. 6;

FIG. 9 is a plan view showing a base mold in FIG. 6;

FIG. 10 is a side view showing a base mold in FIG. 6;

FIG. 11 is an exploded perspective view illustrating an example of use of the processing die in FIG. 6;

12 is a cross-sectional view (a cross-section along CC in FIG. 9) for explaining an example of use of the processing die in FIG. 6;

FIG. 13 is a front view showing another embodiment of the metal fitting main body processed by the processing die according to the present invention.

FIG. 14 is a perspective view showing a fitting main body in FIG. 13;

FIG. 15 is a plan view showing another embodiment of the processing die according to the present invention.

16 is a cross-sectional view (a cross section taken along the line EE in FIG. 17) illustrating an example of use of the processing die of FIG. 15;

17 is a cross-sectional view (cross-section taken along DD in FIG. 16) illustrating an example of use of the processing die in FIG. 16;

FIG. 18 is a perspective view showing a conventional fitting main body.

FIG. 19 is a perspective view showing a conventional metal fitting.

FIG. 20 is a cross-sectional view showing an example of use of the fitting.

FIG. 21 is a plan view showing a conventional processing die.

FIG. 22 is a sectional view (F in FIG. 21) showing a conventional processing die;
-F section).

[Explanation of symbols]

 1, 3 screw hole 5, 5a through hole 7 metal fitting body 9 curved portion 11, 25 buffer layer 13 pipe 15 screw 17 wall 19 molding die 21 storage groove 21a wide portion 23, 27f cutout portion 25a, 25b buffer ridge 27, 41 First mold 27a, 29a, 41a Main surface 27b, 41b Storage recess 27c, 41c Projection 27d First filling groove (inflow hole) 27e, 29c Lock hole 29, 43 Second mold 29b Second Filling groove (inflow hole) 31 Base mold 31c, 31d Guide wall 31a, 31b, 31f Pin 31e Insertion section 33 Frame mold 33a Void 35, 45 Press mold 35a, 45a Press section 37a, 37b Heater 39 Hard Rubber mass 41d first filling groove 43a second filling groove 43b recess 43c inflow hole

Claims (3)

(57) [Claims] 1. A mold for fixing a cushioning material to a part of an outer periphery of a flat plate-shaped metal fitting, wherein a supporting part for supporting the metal fitting and a metal part which is located outside the metal fitting supported by the supporting part are provided. A first mold in which a plurality of first filling grooves in which the cushioning material is formed and solidified after being fluidized are formed at predetermined intervals in parallel with one main surface; A second mold having an abutting contact main surface, wherein the plurality of second filling grooves in which the cushioning material is buried are provided in the first mold.
A second mold formed in parallel with the contact main surface so as to be aligned with the filling groove of the above, and the buffer which is communicated from the outside to the first and second filling grooves and is fluidized. A processing die for metal fittings, wherein a plurality of inflow holes for allowing a material to flow into the first and second filling grooves are formed in the first and / or second die. 2. The processing die for a metal fitting according to claim 1, wherein said support portion for supporting said metal fitting is a storage recess in which said metal fitting fits. 3. A frame mold having a through space surrounding the inflow hole so that the periphery of the inflow hole is exposed from the outside, and the cushioning material inserted into the through hole and placed in the inflow hole is provided by the first mold. The processing die for metal fittings according to claim 1, further comprising: a pressing die for press-fitting into the second filling groove.