JPS63188497A - Progressive forming die - Google Patents

Abstract

PURPOSE:To adapt to plural forms and to improve the versatility by selectively fitting a cutting block and separating block by arranging them to the downstream of the pilot hole forming block forming the pilot hole corresponding to plural forms. CONSTITUTION:The pilot hole forming block 34 capable of forming plural pilot holes of different pitch on a hoop material 33 along the transfer direction of the hoop material 33, the cutting block 35 cutting the hoop material 33 in a basic external shape by providing in series thereto, 1st and 2nd hoop material transfer blocks 37, 38 and a bend separation block 39 are arranged in order between an upper die master and lower die master 31. Plural parts of different forms can be manufactured by selecting the pitch of the pilot hole on the pilot hold forming block and the pilot holes gap corresponding to the width dimension of the hoop material 33. The manufacturing work of the parts of multiform can be realized with less man hour by preparing the cutting block 35 by its adapting to different form an advance as well.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a progressive molding die capable of obtaining a plurality of parts by cutting a metal hoop material while sequentially transporting the same.

<Prior Art> This type of progressive molding mold is utilized in the production of housings constituting electrical part numbers, etc.

FIG. 7 is an explanatory view illustrating a conventional progressive molding die, and this figure shows the lower mold portion. In this FIG. 7, 1 is a hoop material made of metal, 2 is a lower die 3.4 is a stamp for making a predetermined mark, etc. on the hoop material 1. Reference numerals 5, 6, 7, and 8 denote a first Goui insert, a second Goui insert, a third Goui insert, and a fourth Goui insert, which are arranged downstream of the stamp 4 in this order.

Among these, the first lay insert 5 has a hole 69 for forming the basic component external shape on the hoop material 1, and a hole for positioning during work following this first lay insert 5. It has a hole 10 for forming a pilot hole. Although not shown, a punch plate insert is arranged above the first die insert 5, and this punch plate insert includes a cutting punch corresponding to the shape of the hole 9 and a hole 1.
A punch corresponding to the shape of 0 is attached.

Further, the second die insert 6 has a hole 11 for dividing the hoop material 1 into individual parts, and a hole 12 for forming a square hole in the center of the part. and,
Although not shown, there is also a hole 11 above this second die insert 6.
．． A cutting punch and a punching punch having a shape corresponding to the number 12 are arranged, and these cutting punches and punching punches are attached to the punch plate insert described above. Further, the third die insert 7 has a bending die 13 for bending both sides of the parts divided into individual parts at the second die insert 6 portion in an upward direction perpendicular to the plane of the paper. There is.

Although not shown, a bending punch corresponding to the shape of the bending die 13 is arranged above the third die insert 7, and this bending punch is attached to the punch plate insert described above. Further, the fourth die insert 8 is for separating into individual parts, and has a hole 14 in the center.

A cutting punch corresponding to the shape of the hole 14 is arranged above the fourth die insert 8, and this cutting punch is attached to the punch plate insert described above.

Further, the above-described stamp 3.4, the first die insert 5, the second die insert 6, the third die insert 7, and the fourth die insert 8 are formed on the lower mold 2. Predetermined holes 15.16.17.
18, 19, 20 and is kept embedded so that it does not easily come off. Although not shown, an upper mold is disposed to face the lower mold 2, and the punch plate 1 and the insert, to which the punching punch, cutting punch, and bending punch described above are mounted, are held on this upper mold.

Note that 21, 22, 23, and 24 are lids for slightly lifting the hoop material 1 from the surface of the lower mold 2 when transferring the hoop material 1, and are located between the stamp 4 and the first die insert 5, respectively. A third die insert 7 is provided between the first die insert 5 and the second die insert 6, and between the second die insert 6 and the third die insert 7. It is arranged between the fourth die insert 8 and the fourth die insert 8.

In such a progressive mold, while the hoop material 1 is lifted up via the lifters 21, 22, 23, 24 and fed in the direction of the arrow 25 in FIG. By inserting the pilot bottles attached to the hoop material 1 into each of the pilot holes 26,
is positioned at a predetermined position, a predetermined mark etc. is applied using the engraving 3.4, the basic external shape of the part is formed using the 5 parts of the first die insert, and the basic shape is formed using the 6 parts of the second die insert. The parts are separated into individual parts (but each part is still connected), the third die insert part 7 bends both sides of each part, and the fourth die insert part 8 parts are completely bent. The plan view of FIG. 8(a) and FIG.
A finished part 27 in the form of a casing is obtained as illustrated in the side view of FIG. 8(b) and the front view of FIG. 8(c).

<Problems to be Solved by the Invention> Nowadays, there are demands for high-mix, low-volume production, and in order to meet such demands with the conventional progressive mold described above, After molding two varieties of parts,
For example, it is necessary to replace the first die insert 5 with a die insert suitable for a different type of die insert, and to also replace it with a cutting punch, bending punch, etc. adapted to this different die insert. in this case,
Punch plate insert etc. are all die inserts 5.6.7, 8
Since the parts are shared, it is not enough to just replace the relevant cutting punch, but requires extensive replacement of the punch plate insert, etc., and complicated assembly work, which increases the number of man-hours and manufacturing costs for parts production. In the end, there was a problem in terms of versatility.

The present invention has been made in view of the above-mentioned actual situation in the prior art, and its purpose is to provide a progressive molding die that can be applied to a plurality of products and has excellent versatility.

<Means for Solving the Problems> In order to achieve this object, the present invention provides a method for cutting a hoop material made of metal while feeding it in a fixed direction and molding it into a plurality of parts. The lower die master is placed opposite the upper die master. A pilot hole forming block is placed between the upper mold master and the lower mold master and is capable of forming pilot holes of multiple different pitches in the hoop material, and a pilot hole forming block is removably placed between the upper mold master and the lower mold master. At the same time, a cutting block is placed downstream of the pilot hole forming block and cuts the hoop material into the basic part external shape using the pilot hole formed by the pilot hole forming block as a reference, and this cutting block is used as an upper die master. and a fastening means for fastening to the lower die master, and a block disposed downstream of the cutting block for at least one of cutting and bending the hoop material.

<Function> Since the present invention is configured as described above, pilot holes having a plurality of predetermined pitches corresponding to a plurality of types, that is, corresponding to external dimensions of a plurality of types, are formed in advance in the pilot hole forming block. In addition, a plurality of cutting blocks corresponding to a plurality of types of products and a block that performs at least one of cutting and bending placed downstream of the cutting blocks can be provided in advance. Select the pitch of the four pie holes in this pilot hole molding block according to the above, and selectively attach a cutting block according to the product to be manufactured between the upper mold master and the lower mold master via a fastening means. , and can be adapted to multiple product types by selectively attaching blocks located downstream of the cutting block.

<Example> Hereinafter, one example of the progressive molding die of the present invention will be described based on the drawings.

FIG. 1 is a plan view showing the overall configuration of the lower die portion of this embodiment, FIG. 2 is a side sectional view showing the pilot hole forming block and lifter portion provided in this embodiment, and FIG. 3 is (
a) and (b) are plan and side views showing the punch plate constituting the pilot hole forming block, respectively, and Fig. 3 (c), (d), and (e) respectively show the lower part of the pilot hole forming block. FIG. 2 is a plan view, a side view, and a front view. Furthermore, FIGS. 4(a) and 4(b) are half-sectional views of the cutting block provided in this embodiment, viewed from the direction of arrow A in FIG. 1, of which FIG. FIG. 4(b) is a left half sectional view showing the time when the hoop material is cut, and FIG. 4(b) is a right half sectional view showing the time when the hoop material is cut. Also, Fig. 5(a), (
b) is a half-sectional view of the first hoop material transfer block provided in this embodiment as viewed from the direction of arrow B in FIG. 1, of which FIG. In the sectional views, FIG. 5(b) is a right half sectional view showing the hoop material at the time of cutting or bending.

Moreover, FIG. 6(a) is a plan view showing the second hoop material transfer block and bending and separating block provided in this embodiment, and FIG. 6(b) is a plan view as seen from the direction of arrow C in FIG. FIG. 3 is a cross-sectional view of a bent and separated block.

In this embodiment, as shown in FIG. 1.2, etc., there is an upper die master 30 attached to a ram (not shown) on the movable side of the press machine via a fastening means, and an upper die master 30.
A lower die master 31 is attached to a bed (not shown) on the fixed side of the press machine via a fastening means so as to face the press machine.

A hoop material 33 is placed between the upper mold master 30 and the lower mold master 31 as shown by the arrow 32 in FIG. 1.2.
1, 2 and 3 (a) of the same
, (b), (c), (d), and (e), a pilot hole forming block 34 capable of forming a plurality of pilot holes with different pitches in the hoop material 33, and a first
As shown in FIGS. 4(a) and 4(b), there is a cutting block 35 which is connected to the pilot hole forming block 34 and which cuts the hoop material 33 into the basic part shape. The dummy blocks 36 that are arranged in series and do not perform any special operation, and the dummy blocks 36 shown in FIGS.
As shown in b), a first hoop material transfer block 37 which is connected to the dummy block 36 and contributes to the transfer of the hoop material 33, and a first hoop material transfer block 37 as shown in FIGS. 1 and 6(a), A second hoop material transfer block 38 is connected to the hoop material transfer block 37 and contributes to the transfer of the hoop material 33, and as shown in FIGS. Three bending and separating blocks are arranged in sequence, which are connected to the block 38 and which bend and separate the hoop material 33 to form completed parts.

In addition, the pilot hole forming block 34 and the cutting block 3
A lifter 40 is provided between the dummy block 36 and the first hoop material transfer block 37 to float the hoop material 33 when the hoop material 33 is transferred. This is provided. Further, 42 is a guide member whose lower end is fixed to the lower mold master 31 and guides the upper mold master 30 as it moves up and down. A pole retainer 42a is attached to this guide member 42 to enable accurate and movable coupling.

Hereinafter, the configuration of each block described above will be explained in order.

First, the pilot hole forming block 34, which is the block disposed at the most upstream position, is connected to the hoop material 33 as shown in FIG.
It includes a punch plate 44 disposed on the upper side and a die plate 45 disposed on the lower side. The punch plate 44 is removably attached to the upper die master 30 via fastening means such as a clamp member, and the gouging plate 45 is fixed to the lower die master 31 via, for example, bolts. "A series of punch plates 44 are shown in FIG. 3(a).
, (b), a reference groove 46 is provided at one side edge of the hoop material 33, that is, at a position corresponding to the upper edge of the hoop material 33 shown in FIG. Holes 47, 48, which communicate with each other and extend in the direction of the hoop material 33.
49.50. Among these holes, a pin 52 that can protrude into the reference groove 46 via a spring 51 is housed in the hole 47, as shown in FIG. Also, hole 48.
49.50 are provided to form pilot holes of different pitches in the hoop material 33, that is, pilot holes of 60 mm pitch, 45 mm pitch, and 30 mm pitch, and these holes 48.119.50 are provided with pilot holes. Punches 53, 54, and 55 for drilling are housed so that their upper ends can project into the reference groove 46, respectively.

A key 56 shown in FIG. 2 can be inserted into the reference groove 46, and a punch 53 is attached to the tip of the key 56.
．． The key 56 has a protrusion 57 that can come into contact with the head of any one of the keys 54 and 55, and the above-mentioned pin 5 is attached to the distal end of the key 56.
2 has a hole 58, 59, 60 into which the upper end can be inserted. If the pin 52 were to fit into the hole 58 of the key 56, the protruding part 57 of the key 56 would come into contact with the upper end of the punch 55, preventing the punch 55 from moving upward, and preventing the other punches 53, 54 from moving upward. are each held movable upwards. Furthermore, if the pin 52 is connected to the key 5 as shown in FIG.
When the key 56 is inserted into the hole 59 of 6, the protrusion 57 of the key 56
The pin 52 contacts the upper end of the punch 54 and is held so that the punch 54 cannot move upwardly and the other punches 53 and 54 can move upwardly. 60, the protrusion of the key 56 abuts the upper end of the punch 53, and the punch 53 is held immovably upward and movable upwards of the other punches 54 and 55, respectively. .

In addition to the reference groove 46, the punch plate 44 has three key grooves 61, 62, . . . that extend parallel to the reference groove 46.
63 is provided. These keyways 61, 62, 63 have holes 64, 65, .
66 is provided at a position corresponding to the hole 47, and a hole 67.68.6 equivalent to the hole 48.49.50 of the reference groove 46 is provided.
9, and holes 70.71.72, and 73.74.7
5 are provided at corresponding positions. A key equivalent to the key 56 described above can be selectively inserted into the key grooves 61, 62, and 63 described above, and the holes 64 to 63 can be selectively inserted.
66 houses a pin equivalent to the pin 52 described above, and holes 64 to 69, holes 70 to 72, and holes 73 to 75,
Punches equivalent to the punches 53 to 55 described above can be selectively stored. In this embodiment, the holes 65 and 70 to 72 are arranged so as to face the lower edge of the hoop material 33 shown in FIG.
A key is inserted into the keyway 62, and the protrusion at the tip of this key, like the key 56 shown in FIG. They are formed on both side edges of the hoop material 33.

Further, the reference groove 46 and the key groove 61 of the punch plate 44 in the approximately central part of the die plate 45, ie, the punch plate 44 in FIG.
Immediately below the portion 76 located between
, as also shown in (d), a stamping die 8 on which a stamp 77 such as a mark is formed is removably arranged on the die plate 45. Although not shown, a stamp receiver corresponding to the stamp diamond 8 is attached to the portion 76 of the punch plate 1/44, and the hoop material 33 is squeezed between the stamp receiver and the stamp diamond 8 to form the stamp 77. The image is transferred onto the hoop material 33.

In addition, 78 shown in FIGS. 3(c), (d), and (e)
A is a pin that restricts the insertion of the stamping diamond 8, and is implanted in the lower mold master 31. 78b is a stopper that restricts the movement of the stamping diamond 8 in the counter-insertion direction, and 78c is a bolt that fastens this stopper 78b to the gouging plate 45.

Note that 78d and 78e shown in FIG. The above-mentioned pin 78a, stopper 78b, and pole I.78c
A fastening means is provided by which the stamped diamond 8 can be attached and detached from the die plate 1-45.

Furthermore, as shown in FIG. 1, the upper parts of the blocks 78d and 78e have semicircular notches for escaping pilot holes formed by punches 53, 54, 55, etc., and each has a basic overall shape. Guide plate almost rectangular in shape 9.8
0, thereby restricting the movement of the upper surface and side end surfaces of both side edges of the hoop material 33, as shown in FIG. 3(d).

On the insertion side of the hoop material 33 of this guide plate 79.80,
As shown in FIG. 1, tapers 81 and 82 are respectively formed to facilitate insertion of the hoop material 33.

Next, the lifter 40 connected to the pilot hole forming block 34 described above will be explained.

As shown in FIG. 1.2, this lifter 40 is provided with a rod-shaped body 83 extending along the width direction of the hoop material 33 at the upper part, and is provided integrally with this rod-shaped body 83 near both ends of the rod-shaped body 83. It consists of a pair of pins 84 that support the pins 84, and springs 85 that bias each of the pins 84 upward. At a position above the hoop material 33 so as to face the lifter 40, as illustrated in FIG.
A pair of push-down pins 86 of the hoop material 33 that can press down the rod-shaped body 83 of the lifter 40 are provided corresponding to both ends of the rod-shaped body 83. These pins 86 are movably held by the upper mold master 30 and are supported by springs 87.
is urged downward by.

Next, regarding the cutting block 35 and the dummy block 36 that are connected to the lid 40, pin 86, etc., as described above,
This will be explained with reference to FIG. 1 and FIGS. 4(a) and 4(b).

As shown in FIGS. 4(a) and 4(b), the cutting block 35 disposed downstream of the lifter 40 has a guide plate 8 attached to the lower mold master 31 on the lower mold master 31 side.
8 and disposed on both ends of this Gui plate 88,
Guide plates 89.90 that guide both side edges of the hoop material 33, and a fixed stripper 9 arranged above these guide plates 89.90 to restrict upward movement of the hoop material 33.
1. Note that FIG. 1 shows the fixed stripper 91.
The figure shows the state excluding. These Gui plates 88
A reference pin 92 fixed to the lower mold master 31 is inserted into holes formed at corresponding positions on the side ends of the guide plates 89, 90, and the fixed stripper 91.
2, the guide plate 88, guide plates 89, 90, and fixed strip/ripper 91 are positioned with respect to the lower mold master 31.

And 93 is die play 1.88, guide plate 89.9
0. A plurality of clamp members that grip the fixed stripper 91, the tip portions 93a of which are engaged with the upper surface of the fixed stripper 91. Reference numerals 94 denote bolts for fixing these clamp members 93 to the lower mold master 31, respectively.

Further, a punch plate 96 is attached to the upper mold master 30 side via a backing member 95 etc., and this punch plate 96 is equipped with a cutting punch 97 for forming a predetermined basic component external shape in the hoop material 33. , a round punch 98 for forming a U-shaped hole in the hoop material 33, a hole punch (not shown) for making another hole in the hoop material 33 close to the U-shaped hole, and the pilot hole forming block 34 described above. A pilot pin 99 that can be inserted into a pilot hole of the hoop material 33 is provided.

The heads of the cutting punch 97, the round punch 98, the pilot pin 99, and the head of a hole punch (not shown) are restricted from upward movement by a backing member 95.

Reference numeral 100 indicates a reference bin for positioning the backing member 95, punch plate 96, etc. relative to the upper die master 30; 101 indicates a plurality of clamp members for gripping the backing member 95, punch plate 96, etc.; It engages with the lower surface of plate 96. Numerals 103 are bolts for fixing the clamp members 101 to the upper mold master 30, respectively.

As shown in FIG. 1 and FIGS. 4(a) and 4(b), the die plate 88 has a hole 104 corresponding to the outer shape of the cutting punch 97, and a hole 104 corresponding to the outer shape of the lower end of the round punch 98. A hole 105 corresponding to the shape, a hole 105a corresponding to the outer shape of a hole punch (not shown), and a pilot pin 9.
A hole 106 is formed into which 9 can be inserted.

Gui plate 8 placed on the lower die master 31 side mentioned above
8, guide plates 89 and 90, a fixed stripper 91, a backing member 95 disposed on the upper die master 30 side, and a punch plate 1 and 96 including a cutting punch 97, etc., constitute the cutting block 35.

In addition, the above-mentioned clamp members 93 and 101 and bolts 94
．． 103 constitutes a fastening means for fastening the above-mentioned cutting block 35 to the upper die master 30 and the lower die master 31G.

A key groove 107 is formed in the cutting block 35 and the lower die master 31 near the lifter 40 shown in FIG. 1, and a key 108 is removably inserted into the key groove 107. 109 is a plate that covers the end of the key 108, and 110 is a bolt that fixes this plate 109 to the lower mold master 31. Although not shown, pilot pins are attached to the aforementioned goo plates 88 at positions corresponding to both side edges of the hoop material 33 below the key 108 so as to be able to protrude upward. This pilot pin is used to determine the feeding pitch of the hoop material 33, as will be described later.

The dummy block 36 connected to the cutting block 35 shown in FIG. 1 has, for example, a die plate that is flush with the guide plate 88 of the cutting block 35. It is provided so as to extend to both side ends of the die plate No. 36. Further, although not shown, the fixed stripper 91 provided on the cutting block 35 may also be attached to the hoop material 33 of this dummy block 36, for example.
It was extended to cover the area. This dummy block 36
is positioned by a reference pin 92.

The lower die master 3 is attached by the clamp member 93 and bolt 94 via the guide plate 89, 90 and the fixed stripper 91.
1 is removably fastened.

In addition, the above-mentioned cutting block 35 and dummy block 36
Directly below the approximately central part of the hole 104.105.1
The part of the lower mold master 31 located below the area including 05a can store the member removed by cutting and drilling from the hoop material 33, as shown in FIGS. 1 and 4 (a>, (b)). A hole 111 is provided.

Next, the lifter 41 connected to the above-mentioned dummy block 36 will be explained with reference to FIG. 1 and FIG. 2.

This lifter 41 also includes a rod-shaped body 112 extending along the width direction of the hoop material 33, and a rod-shaped body 112 that is provided integrally with the rod-shaped body 112 and supports the vicinity of both ends of the rod-shaped body 112, as described above and similar to the lid 40. A pair of pins 113 and these pins 11
3 and a spring 114 that urges each upwardly. Then, so as to face this lifter 41,
At a position above the hoop material 33, as illustrated in FIG.
One pair is provided corresponding to both end portions of 2. These pins 115 are movably held by the upper mold master 30 and are biased downward by a spring 116.

Next, regarding the first hoop material transfer block 37 installed downstream of this lifter 41, FIG. 1 and FIG.
), (b).

This first hoop material transfer block 37 is connected to the lower mold master 3
A die plate 117 fixed to the lower mold master 31 is provided on the first side. At a position below the hoop material 33 in the center of the die plate h 117, there is a bending punch 118, which is not used in this embodiment, and a knockout 11 arranged vertically movably inside the bending punch 118.
9 and a knockout pin 120 that supports the knockout 119 is provided to match the shape of the part.

At positions corresponding to both side edges of the hoop material 33 on the outside of the bending punch 118, there are provided a lifting device for the hoop material 33, a guide for the hoop material 33, and a stripper (for removing the hoop material 33). Elevating means 121 and 122 are provided which also serve as a device for dropping the material.

These elevating means 121 and 122 each have a hoop material 33
Guide plates 123 and 124 each have a U-shaped hole into which both side edges of the guide plates 123 and 124 are movably inserted.
A pin 1 is provided integrally with 124 and is movable up and down in a hole provided in the gou plate 117 and the lower die master 31.
25,126, a spring 127,128 that biases these pins 125,126 upwards, and a guide plate 123.1.
24 to pins 125 and 126, respectively, are provided with bolts 123a and 124a. In addition, pin 125.
Each of the lower end portions 126 is provided with large diameter portions 129 and 130, and when these large diameter portions 129 and 130 are engaged with the upper ends of holes 131 and 132 provided in the lower die master 31, the pins are fixed. 125, 126 and guide plate 123.
124, that is, upward movement of the hoop material 33 is restricted.

Further, the guide plates 123 and 124 each restrict movement of the hoop material 33 in the width direction by the side wall of the U-shaped hole, restrict the fall of the hoop material 33 by the lower wall thereof, and restrict the movement of the hoop material 33 by the upper wall thereof. When an upward force is applied, upward movement is restricted.

In addition, at the end of the guide plates 123 and 124 on the lifter 41 side, as shown in FIG. Tapers 123b, 12 arranged in a substantially horizontal plane
4b, and a taper 124c arranged in a substantially vertical plane as illustrated in FIG. 2 (the taper on the guide plate 123 side is omitted).
and is formed.

In addition, a stripper of the upper mold stripper plate 136a is attached to each edge of the guide plate 123, 124 opposite to both side edges of the hoop material 33 along the flow direction of the hoop material 33 shown by the arrow 32 in FIG. 136 is provided with semicircular notches 123d and 124d, respectively, which constitute escape holes when the hoop material 33 is inserted into the pilot hole of a pilot pin (not shown) that is attached as necessary. A plurality of holes 123d and 124d are provided in advance in accordance with the pitches of the holes 48, 49, and 50 in FIG. 3 set in the pilot hole forming block 34, respectively. However, in this embodiment, since the first hoop material transfer block 37 does not perform cutting, bending, etc., in other words, only transfers the hoop material 33, the above-mentioned pilot pin is not transferred to the stripper 136. It is not necessary to attach it to the

Note that reference pin 133 shown in FIG. 5(a) is a reference pin fixed to the lower mold master 31 and used to position the gouly plate 117. This reference pin 133 is inserted into a hole 134 formed in the gouly plate 117. It looks like this.

Further, the first hoop material transfer block 37 includes a punch plate 135 and a stripper plate 136a on the upper mold master 30 side. Punch plate 13
5 is hardly used in this embodiment, but for example, a cutting punch or the like is attached when necessary.

Further, the stripper plate 136a is held so as to be movable up and down, and the above-mentioned elevating means 121, 12
The heads of the bolts 123a and 124a forming part 2 can be inserted. In addition, 139 is a sub guide post fixed to the upper mold master 3.0, and the above-mentioned stripper 13
6 is also movable relative to this sub-guide post 139 as described above. A hole 140 into which the lower end of the sub-guide post 139 can be inserted is provided at a corresponding position of the die plate 117 directly below the sub-guide post 139.

Next, the second hoop material transfer block 38 and bending/separation block 39 connected to the first hoop material transfer block 37 are shown in FIG. 1 and FIGS. 6(a) and (b).
This is explained by

In this embodiment, the second hoop material transfer block 38 is not used for special operations such as cutting, but is used only to transfer the hoop material 33. A guide plate 123.12tl provided in the first hoop material transfer block 37 is provided on both sides of the above-mentioned goui plate. It has been extended to accommodate the location. Note that the guide plate 123
．． 124 is bent at its end and extended until it partially covers the three separation blocks.

A bending and separating block 39 disposed downstream of the second hoop material transfer block 38 has a bending die 141 on the lower die master 31 side. This bending and separation block 39 is
It is positioned so as to be sandwiched between two blocks 142a that are removably attached to the lower die master 31 via fastening means such as bolts.

The bending die 141 has a knockout 143 in the center thereof that can protrude upward to the upper surface of the bending die 141.
This knockout 143 has multiple knockout pins 14
4 is integrally provided. Further, the knockout pin 144 is integrally provided on a connecting pin 145 that is movable in the vertical direction. This connecting pin 145 is moved by a connecting pin moving means (not shown) provided on the bed side of the press machine to which this embodiment is installed. Also,
A backing member 146 having a hole through which a knockout pin 144 can be inserted is arranged below the bending die 141. It should be noted that this backing member 146 is made to correspond to different types of parts that can be manufactured from the hoop material 33.
A large number of holes are provided in advance, and in this embodiment, the knockout 143 is selectively inserted into an appropriate hole corresponding to the arrangement of the knockouts 144 that can be smoothly moved up and down. . In addition, 147 shown in FIG. 6(b) is a stripper that removes the parts made from the hoop material 33, and for example, 147 removes the parts made from the hoop material 33.
42. In FIG. 1, the state in which this stripper 147 is removed is shown.

Moreover, this separation and cutting block 39 is shown in FIG. 6(b).
As shown in FIG.
48 is attached, and a bending punch 149 and a cutting punch 150 are attached to this punch plate 148.

Note that 151 shown in FIG. 6(b) is a backing member that restricts the upward movement of the bending punch 149, and 1'52 is inserted into a hole formed in the backing member 151 and is provided integrally with the bending punch 149. Knockout pin, 153
is a spring that applies force to the bending punch 149 via the knockout pin 152. Further, 154 is a spacer key for preventing the cutting punch 150 from being removed, and 155 is a bolt for fixing these spacer keys 154 to the punch plate 148.

Next, in the embodiment configured as described above, the procedure for obtaining a completed part from the hoop material 33 and the operation of each block will be explained.

First, the upper die master 30 is attached to the ram, which is the movable side of a press machine (not shown), by means of fastening means, and the lower die master 31 is attached to the bed, which is the fixed side, by means of fastening means. Then, for example, as shown in FIG. 2, the key 56 is inserted into the reference groove 46 so that its protrusion 57 engages with the head of the punch 54. In this state, the force of the spring 51 causes the pin 52 to fit into the hole 59 of the key 56, thereby restricting the key 56 from moving easily.

In addition, a key (not shown) equivalent to the key 56 is attached to the hoop material 33.
For example, it is inserted into the keyway 62 shown in FIG. 3 so that its tip reaches the hole 71 position according to the width dimension. Further, the key 108 is pulled out from the key groove 107.

From this state, the hoop material 33 is inserted using the taper 81.82 of the guide plate 79.80 of the pilot hole forming block 34 shown in FIG. The punch plate 4 is arranged so as to extend over the cutting block 35, the dummy block 36, and the lifter 41, and when the ram of a press machine (not shown) is driven and the upper die master 30 is lowered, the punch plate 4
4 is lowered to the punch 54 and the hole 71 in FIG. 3(a).
A first pair of pilot holes are formed on both side edges of the hoop material 33 by a punch (not shown) inserted into the hoop material 33 . Further, at the same time, the back side of the hoop material 33 is pressed against the stamp 77 of the stamping diamond 8, and the mark etc. formed by the stamp 77 is transferred onto the hoop material 33.

Next, when the hoop material 33 is withdrawn in the direction of the arrow 32,
A pilot pin (not shown) located in the keyway 107 projects upward to be inserted into the pair of pilot holes formed as described above, thereby positioning the hoop member 33.

In this state, when the upper die master 30 is lowered again as described above, a second punch is formed on both side edges of the hoop material 33 by the punch 54 and a corresponding punch (not shown).
A second pilot hole is formed. From this point on, the dimension between the pilot hole formed in the first time and the pilot hole formed in the second time, that is, the length of 45 mm, is taken as one feed pitch, and the hoop material 33 is successively added at each 45 mm pitch. is sent to carry out the pilot hole forming operation in the pilot hole forming block 34, as well as the cutting and bending operations described below.

Note that when the second pilot hole is formed as described above, the feed pitch is determined, so the keyway 10
The protrusion of the pilot pin (not shown) located at position 7 becomes a hindrance to the transfer of the hoop material 33. Therefore, the keyway 10
The key 108 is inserted into the key 7, and the pilot pin (not shown) is thereby pushed down onto the lower surface of the key 108.

The key 108 is fixed to the lower mold master 31 by the keyway 107 and the pin 108a.

The hoop material 33 in which the pilot hole was formed as described above was slightly raised from the surface of the stamped die 8 of the pilot hole forming block 34 and the die plate 88 of the cutting block 35 by the rod-shaped body 83.112 of the lifter 40.41. transported in condition.

Then, the hoop material 33 with the pilot hole formed therein is inserted into the hole 104, 105, 105a of the cutting block 35.
When the pilot hole forming block 34 reaches the fourth position, the upper die master 30 moves downward when forming the pilot hole.
The backing member 95 and the punch plates 1 and 96 shown in FIG. 2 are lowered, and the pin 86 shown in FIG.
, 115, the rod-shaped bodies 83 of the lifters 40, 41 are lowered.
．． 112 is pushed down against the force of springs 85 and 114 so that the surface of the hoop material 33 does not protrude beyond the surface of the Goui plate 88. Subsequently, a pilot pin 99 or the like shown in FIG. 4(b) is inserted into the hole 106 through the already formed pilot hole, thereby positioning the hoop material 33 in this cutting block 35. moreover,
The cutting punch 9 is removed by the subsequent lowering of the punch plate 96.
7 cuts the hoop material 33 and inserts it into the hole 104, and a round punch 98 and a hole punch (not shown) cut the hoop material 33 and insert it into the hole 104.
3 and inserted into the holes 105 and 105a respectively,
The state shown in FIG. 4(b) is reached. Cutting punch 9 mentioned above
7 forms the basic external shape of the part, a round punch 98 forms a mouth-shaped hole, and a hole punch (not shown) makes a hole near the mouth-shaped hole.

Hoop material 3 removed by such cutting and drilling
The unnecessary portion 3 falls under its own weight inside the hole 111 of the lower mold master 31 and is discharged to the outside of this mold.

The hoop material 33 that has been sent over the lifter 41 is moved to the lifting means 1 of the first hoop material transfer block 37.
The first hoop material transfer block 37 and the second hoop material transfer block are guided by the tapers 123b, 124b, 124c, etc. of the guide plates 123. block 38
It is sent to the bending 1 separation block position through 3 positions.

During this time, the pilot hole forming block 34 performs an operation of forming pilot holes on both side edges of the hoop material 33 at a pitch of 45 mm, and the cutting block 35 repeatedly drills holes corresponding to the 45 mm pitch holes 104, 105, and 105a. In addition, the first hoop material transfer block 3
7, when the hoop material 33 is transferred, the pin 125, the guide plate 123, and the bolt 123a are kept in the upper position and not lifted up by the force of the spring 127, as shown in FIG. 5(a). In addition, when forming pilot holes in the pilot hole forming block and cutting in the cutting block 35, as shown in FIG.
The ripper 136 causes the guide plates 123 and 124 to release the spring 1
27. The surface of the stamped diamond 8 of the pilot hole forming block 34 and the cutting block 3 are pressed down against the force of 128.
5 is held at approximately the same height as the surface of die plate 1/88. At this time, the heads of the bolts 123a and 124a constituting the elevating means 121 and 122 are attached to the stripper 1.
The hoop material 33 is housed in a large area formed in the hoop material 36, and is maintained in a state that does not affect the hoop material 33 in any way.

Further, during this period, that is, until the hoop material 33 is bent and reaches the separation block 39, the hoop material 33 constitutes a single piece of wood.

Then, when the hole corresponding to the hole 105.105a formed in the cutting block 35 among the holes formed in the hoop material 33 bends and reaches approximately the center position of the separation block 39, a pilot hole is formed in the pilot hole forming block 34. As a result of the operation and the lowering of the upper mold master 31 accompanying the cutting operation in the cutting block 35, the punch plate 148 shown in FIG. The hoop material 33 is positioned by inserting it into the pilot hole, and as the punch plate 148 descends, the bending punch 149 and cutting punch 150 are lowered together.
By the bending punch 149 and the bending die 141, both sides of the corresponding portion of the hoop material 33 are bent downward and the hoop material 33 is separated.
The finished part shown at 6 is obtained, and the cutting punch 15
The hoop material 3 produced by removing the finished part 156 by
3 unnecessary bar-shaped edges are cut off.

Note that the unnecessary portion of the hoop material 33 formed by cutting with the cutting punch 150 is discharged to the outside by a discharge means (not shown). Completed parts 15 obtained in this way
6 is driven by a connecting pin moving means (not shown).
It can be removed from the bending die 141 by raising the connecting pin 145 shown in FIG.
If the completed part 156 is caught by the bending punch 149 or the like and lifted upward, the sixth
The completed part 156 is stripped off by a stripper 147 shown in Figure (b) and removed from a bending punch 149 or the like.

In this way, a plurality of finished parts 156 of the same type can be obtained from the hoop material 33 every 45 mm pitch.

In the above, the key 56 in the pilot hole forming block 34 is moved appropriately so that the protrusion 57 is aligned with the punch 5.
3.55, and move the key inserted into the keyway 62 shown in FIG. 3(a) in the same manner as the key 56 to perform the above-mentioned operations. , the finished part 156 can be obtained with a pitch of 30 mm.

In addition, the key inserted in the keyway 62 is shown in FIG. 3(a).
The width dimension of the guide plate 89 of the cutting block 35, the cutting block 3
dimensions of the cutting punch 97 etc. of No. 5, guide dimensions of the guide plate 123 of the first hoop material transfer block 37, dimensions of the bending punch 149 of the bending and separation block 39, cutting punch 15
0 can be attached with a width larger or smaller than the finished part 156 described above by changing the position and the like.

Alternatively, for example, by removing the cutting block 35 and the dummy block 36 to form one cutting block, replacing it with a punch plate having a corresponding cutting block, etc., bending it at the same time, and replacing the separation block 39 etc. individually. ,
A plurality of parts different from the finished part 156 described above can be obtained.

Also, for example, by replacing the die plate 88 of the cutting block 35, the punch plate 96 including the cutting punch 97, etc. with another one, and utilizing the bending punch 11'8 of the first hoop material transfer block 37, Alternatively, by utilizing the second hoop material transfer block 38 as a bending block, a plurality of parts different from the finished part 156 can be obtained.

In the embodiment configured as described above, by selecting the pitch of the pilot holes of the hoop material 33 in the pilot hole forming block 34 and selecting the pilot hole interval corresponding to the width dimension of the hoop material 33, a plurality of different types can be formed. parts can be manufactured.

In addition, the stamped diamond 8 on which the stamp 77 is formed is shown in FIG.
c), (d), and (e), and by loosening the bolts 78c and rotating the stopper 78 by 180 degrees from the position shown in FIG. 3(d), it can be easily converted to another type.

The cutting block 35 also includes a clamping member 93.101.
Loosen bolts 94 and 103 and install either 9 as shown in Figure 1.
It can be removed by rotating it by 0 degrees, and can be easily changed to another cutting block without changing the shape of the upper die master 30, lower die master 31, etc., thus making it easy to manufacture parts of different types. be able to. In this case, by preparing in advance cutting blocks that correspond to different types of parts, it is possible to manufacture parts of many different types with fewer man-hours.

In addition, since the bending and separation block 39 is arranged downstream of the cutting block 35, the hoop material 32 can be made to perform two different operations of cutting and bending, thereby making it possible to manufacture parts of different types. can respond well to

In addition, a pilot hole forming block 34, a cutting block 3
5 is equipped with guide plates 79, 80 and 89, 90, respectively, so that the hoop material 33 can be reliably transferred along the desired transfer direction, ensuring component accuracy and efficiency of cutting and bending operations. Contributing to improvement.

In addition, since the hole 111 is provided in the lower die master 31 located directly under the center of the cutting block 35, the hoop material 33 generated by forming the hole corresponding to the hole 104, 105, 105a of the cutting block 35 This hole 111 allows all unnecessary parts to be stored together. By forming this one hole 111, it is not necessary to separately provide holes for discharging unnecessary materials for the holes 104, 105, and 105a in the lower mold master 31, and manufacturing is easy.

Further, lifters 40.41 are provided before and after the cutting block 35, and these lifters 40.41 float the hoop material 33 when the hoop material 33 is transferred, and when cutting, the bin 86.41 provided in the cutting block 35 is lifted. 115
Since these lids 40 and 41 are pushed down by the hoop material 33, the frictional force applied to the hoop material 33 when the hoop material 33 is transferred can be reduced, and the hoop material 33 can be transferred smoothly. In addition, when cutting the hoop material 33, the cutting operation can be performed reliably regardless of the floating blades of the lifters 40, 41.

Further, the elevating means 12 of the first hoop material transfer block 37
The side edges of the guide plates 123 and 124 that constitute 1.122 have a notch 123d that allows insertion of a pilot pin.
, 124d, when this first hoop material transfer block 37 is used as a cutting block or a bending block, the hoop material 33 can be positioned reliably, and the hoop material 33 can be moved in a good manner. can be guided by the guide plates 123 and 124.
The space between them can be made sufficiently wide and can be used as an area for protruding, bending, etc. the hoop material 33.

<Effects of the Invention> Since the progressive molding die of the present invention is configured as described above, it can be applied to multiple types of products and has excellent versatility, thus reducing the number of parts manufacturing steps and minimizing manufacturing costs. There is an effect that can be done.

[Brief explanation of the drawing]

Figures 1 to 6 (a) and (b) are explanatory diagrams showing one embodiment of the progressive molding die of the present invention, and Figure 1 shows the overall structure of the lower mold part of this embodiment. A plan view, FIG. 2 is a side sectional view showing the pilot hole forming block and lifter portion provided in this embodiment, and FIGS. 3(a) and (b) are plan views showing the punch plate forming the pilot hole forming block, respectively. Figure, side view, Figure 3 (c), (d),
(e) is a plan view, side view, and front view showing the lower part of the pilot hole forming block, and Fig. 4(a) and (
b) is a half-sectional view of the cutting block provided in this embodiment as viewed from the direction of the arrow in FIG.
Figure (a) is a left half sectional view showing the hoop material being transferred, and Figure 4 (
b) is a right half sectional view showing the hoop material when it is cut;
) and (b) are half-sectional views of the first hoop material transfer block provided in this embodiment, viewed from the direction of arrow B in FIG. 5(b) is a right half sectional view showing the hoop material being cut or bent, FIG. 6(a) is the second hoop material transfer block provided in this embodiment, and bending,
FIG. 6(b) is a plan view showing the separation block and lock; FIG.
The figure is an explanatory diagram illustrating the lower mold part of a conventional progressive molding die,
FIGS. 8(a), (b), and (c) are a plan view, a side view, and a front view, respectively, showing a completed part obtained by the conventional progressive molding die shown in FIG. 7. 30... Upper die master, 31... Lower die master, 33... Hoop material, 34... Pilot hole forming block, 35... - Cutting block, 39...Bending, separation block, 44...
... Punch plate, 45 ... Die plate, 46 ... Reference groove, 47.48.49.50.
... Hole, 51 ... Spring, 52 ...
・Bottle, 53.54.55... Punch, 56.
...Key, 57...Protrusion, 58.59
．． 60...hole, 61.62.63...
Keyway, 64.65.66.67.68.69.70.
71.72.73.74.75... Hole, 79.
80... Guide plate, 88... Gui plate, 89.90... Guide plate, 91...
... Fixed stripper, 93.101 ... Clamp member, 94.103 ... Bolt, 95 ...
... Backing member, 96 ... Punch plate, 97 ... Cutting punch, 98 ... Round punch, 99 ... Pilot pin, 104.1
05.105a, 106...hole. Figure 3 tσノ
(b) Figure 3 Figure 6 (a) /44ゝ145 Figure 8 (b) (C)

Claims (1)

[Claims] (1) In a progressive mold that cuts a metal hoop material while feeding it in a fixed direction and molds it into multiple parts, there is an upper mold master and a lower mold master placed opposite to this upper mold master. , a pilot hole forming block that is disposed between these upper and lower mold masters and is capable of forming pilot holes with a plurality of different pitches in the hoop material, and is removable between the upper and lower mold masters. and located downstream of the pilot hole forming block,
a cutting block that cuts the hoop material into a basic component external shape based on the pilot hole formed by the pilot hole forming block; a fastening means for fastening the cutting block to an upper mold master and a lower mold master; 1. A progressive molding die comprising: a block disposed downstream of the block for at least one of cutting and bending the hoop material.