JPS6329617B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a press apparatus used particularly for molding long objects.

Conventionally, when press forming long objects, the press molds are usually divided into longitudinal parts due to manufacturing problems.These press molds are set side by side on a holder, and the press molds are inserted between the columns into the press. will be transported to. Therefore, the total length of the press die, that is, the length of the finished product, is regulated by the column spacing, in other words, the length of the holder belonging to the press.
When press forming a longer item, even if the press has extra power, a larger press must be used, which is extremely disadvantageous in terms of space and power consumption. It was hot.

The present invention will be explained below based on the drawings.

The present invention was made in view of such conventional problems, and includes a press device for press-forming a long workpiece by placing a holder between a plurality of columns and attaching a press mold to the holder. The holder and the press die are each divided into a plurality of parts along the longitudinal direction of the workpiece, each of the divided parts is connectable, and when the holder and the press die are arranged between the columns, they face the column. By configuring the holder and press mold so that the ends of the holder and press mold protrude into the space between the columns, it is possible to use a large press even if the product has a total length longer than the spacing between the columns. This allows it to be molded without using.

1, 2, and 3 are diagrams showing an embodiment of the present invention. First, to explain the configuration, a pair of upper holder 1 and lower holder 2 are longitudinally divided into three partial upper holders 3, 4, 5, partial lower holder 6,
It is divided into 7 and 8 parts respectively. Upper dies 11 of a pair of upper and lower press dies 10 are fixedly attached to the recess 9 on the lower surface of the upper holder 1 . Upper mold 11
is attached to the three partial upper holders 3, 4,
Three partial upper molds 12, 1 in the longitudinal direction corresponding to 5
It is divided into 3 and 14 parts. A lower die 16 of the press die 10 is fixedly attached to the recess 15 on the upper surface of the lower holder 2. The lower mold 16 is divided into three partial lower molds 17, 18, 19 in the longitudinal direction corresponding to the three partial lower holders 6, 7, 8 to be attached. At the open ends of the partial upper holders 3, 5 and the partial lower holders 6, 8 at both ends which become the upper and lower holders 1 and 2, there are cutouts 21 corresponding to the columns 20 of the press.
is provided. A groove 22 is formed on one side of the notch 21.
is provided. Reference numeral 23 denotes a plurality of guide posts installed perpendicularly to the lower holder 2. The circumferential surface of the guide post 23 is tapered and engages with a guide hole (not shown) provided in the upper holder 1. Then, lower the upper holder 1 and guide it.
This is for horizontal positioning between the upper holder 1 and the lower holder 2. 26 indicates the upper partial holders 3 and 4, or the upper partial holders 4 and 5, and the lower partial holders 6 and 7, or the lower partial holder 7.
This is a bolt insertion hole provided in the end faces facing each other to connect the parts 8 and 8. Reference numeral 27 denotes a cylindrical positioning pin that is fitted into a groove 28 provided on the mutually opposing end surfaces of the upper partial holders 3 and 5 and the lower partial holder 6 and 8, and is more than half buried. The surfaces fit into grooves 29 provided on both end faces of the upper partial holder 4 and the lower partial holder 7 facing each other. In FIG. 2, 30 is a bolster of the press 31, which has a rectangular holder mounting surface 32 surrounded by four columns 20 and with its four corners restricted. The lower holder 2 to which the lower die 16 is attached is attached to the upper surface of the bolster 30. In this case, a portion of the lower partial molds 17 and 19 and the lower partial holders 6 and 8 overhang from both ends of the holder attachment surface 32 of the bolster 30 and are located in a space sandwiched between the two columns 20. Although the slider is not shown, it has a holder attachment surface similar to that of the bolster, and the upper die 11 and the upper holder 1 are attached in the same manner as the bolster 30. Reference numeral 33 indicates positioning pins provided at both ends of the bolster 30.

Next, the operation of this embodiment will be explained.

4, 5, 6, and 7 are views showing the process of attaching the lower holder 2 and lower mold 16 to the bolster 30 in this embodiment. First, as shown in FIG. 4, a partial lower holder 6 and a partial lower mold 16 fixed thereto.
was brought onto the lower bolster 30 as shown by arrow A, and then moved as shown by arrow B,
The pins 33 are brought into the groove 22 to a temporary position where they abut, and a portion of the lower partial holder 6 and the lower mold 17 are made to overhang from the end of the holder mounting surface 32, and are sandwiched between the two columns 20. Bring it to a space where you can be. Next, as shown in FIG. 5, the lower partial holder 8 and the lower partial mold 16 fixed thereto are brought onto the bolster 30 as shown by arrow C, and then moved as shown by arrow D. Pin 3 in groove 22
3 have been brought to the proper position where they come into contact, and a part of the lower partial holder 8 and the lower partial mold 19 are placed on the holder mounting surface 3.
It overhangs from the end of 2 and is brought into the space sandwiched between the two columns 20. Next, as shown in FIG. 6, the lower partial holder 2 and the lower partial mold 18 fixed thereto are brought onto the bolster 30 as shown by arrow E, and then the lower partial holder 8 is moved as shown by arrow F. and move it toward the partial lower mold 19, and position it by fitting the pin 27 into the groove 29.
A bolt 34 is inserted into the bolt insertion hole 26 of the lower partial holders 7 and 8 and fastened with a nut 35 to connect the lower partial holder 7 and the lower partial holder 8. Next, as shown in FIG. 7, the lower partial holder 6 and the lower partial mold 17 fixed thereto are moved in the direction of arrow G, and the pins 27 are inserted into the grooves 29 for positioning. Bolt insertion hole 2 of partial lower holder 6, 7
A bolt 34 is inserted through 6 and fastened with a nut 35 to connect the partial lower holders 6 and 7. As described above, the lower holder 2 and the lower die 16, which are larger than the holder attachment surface 32 whose ends are regulated by the four columns 20, are attached to the lower bolster 30. Although the explanation will be omitted in the case of upper holder 1,
It is similarly attached to a slide (not shown).

If a workpiece (not shown) is placed between the lower mold 16 and the upper mold 11 and the upper mold 11 is lowered by a slide (not shown) and fitted with the lower mold 16, the gap between the lower mold 16 and the upper mold 11 is A workpiece (not shown) located at is pressed. In this case, since both ends of the upper die 11 and the lower die 16 overhang the space between the columns 20, it is possible to press a correspondingly larger workpiece.

Note that the partial upper holders 3, 4, 5 and the partial lower holders 6, 7, 8 shown in the above-mentioned embodiments
Grooves 28 and 29 provided on mutually opposing end surfaces of
Instead, a groove 3 having a triangular cross section as shown in FIG.
6 may be provided. In this case, a prismatic pin 37 is used instead of the cylindrical pin 27 of the previous embodiment.

Further, instead of the groove 28 in the above-described embodiment, a groove 38 having a rectangular cross section as shown in FIG. 9 may be provided.
In this case, the groove 29 of the above embodiment is replaced with a groove 39 having a trapezoidal cross section as shown in FIG. Further, in place of the cylindrical pin 27 of the previous embodiment, a pin 40 having a hexagonal cross section that fits into the hole formed by the groove 38 and the groove 39 is used.

Moreover, instead of the bolt insertion hole 26 of the above-described embodiment, a tapered surface 4 is provided on the mutually opposing end surfaces of the partial upper holders 3, 4, 5 and the partial lower holders 6, 7, 8.
1, and a bolt hole 43 is provided on the side surface near the end face, and a connecting member 44 having a U-shaped cross section connects the upper partial holders 3, 4, 5 and the lower partial holders 6, 7, 8 to each other. The partial upper holders 3, 4, 5 and the lower holders 6, 7, 8 may be connected to each other by two bolts 45, 46 attached to the connecting member 44, sandwiching the facing protrusions 42.

As explained above, according to this invention, the configuration is a press device that press-forms a long workpiece by placing a holder between a plurality of columns and attaching a press mold to the holder. In this method, the holder and the press mold are each divided into a plurality of parts along the longitudinal direction of the workpiece, and each of the divided parts can be connected, so that when the holder and the press mold are arranged between the columns, the holder and the press mold are arranged between columns. The holder and press mold are configured so that the opposite ends of the holder and press mold protrude into the space sandwiched between multiple columns, so the holder and press mold are larger than the holder mounting surface whose both ends are regulated by the columns. can be attached to the press, that is, the press mold can be overhanged in the space between the two columns at both ends, so that the existing small press can be used to create a large one, i.e.
This has the effect of being able to press workpieces that are longer than the column spacing.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective explanatory view of one embodiment of the present invention, Fig. 2 is a plan view of the lower mold, lower holder, lower bolster, and column (cross-sectional view) of a press explaining this embodiment, and Fig. 3 is a A partially enlarged view showing the positioning part of the connection part of the divided holder of the press device of this embodiment, Figures 4, 5, 6, and 7 are explanatory diagrams for attaching the lower holder of this embodiment, and Figures 8 and 9 are An enlarged view showing another example of the positioning portion of the connecting portion of the divided holder in this embodiment, and FIG. 10 is a partially enlarged view showing another example of the connecting portion of the connecting portion of the divided holder in this example. It is. 1... Upper holder, 2... Lower holder, 3, 4, 5
...Partial upper holder, 6,7,8...Partial lower holder, 10...Press mold, 11...Upper mold, 16...
Lower mold, 20... Column, 30... Bolster, 32
...Holder mounting surface.

Claims (1)

[Claims] 1. In a press device that press-forms a long workpiece by arranging a holder between a plurality of columns and attaching a press die to the holder, the holder and the press die are pressed along the longitudinal direction of the workpiece. Each part is divided into multiple parts, and each divided part can be connected, so that when the holder and press die are placed between columns, the ends of the holder and press die facing the column are sandwiched between the multiple columns. A press device characterized in that a holder and a press die are configured so as to protrude into a space.