JPS58149200A - Shearing press mold for board material - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a shearing press mold for plate materials that is capable of dividing and automatically cutting off scraps of a plate material.

Conventional shear press molds for sheet materials include 1, for example No. 11A,
There is something like the one shown in Figure 2. FIG. 1 is a plan view of a lower die showing a part of the plate material cut away, for example, a corrugated cardboard material used as a car ceiling material is used as a workpiece for edge cutting.
FIG. 2 is a perspective view of the main part. In the figure, 1 is a stepped pole material to be processed, and the curved surface part 1a matches the curved surface of the automatic east ceiling.
It has an annular edge portion 1b that is approximately flat like I and continues into the shape of a flat plate.

(The shape of the edge 1b is not always annular, but may be elongated.) The shear press mold for this plate penetrates the edge 1b of the corrugated board 1 placed on the lower die 2. A predetermined number of locating pins 3 for positioning the plate l, an edge cutting blade 4 for cutting off the edge 1b from the curved surface 1a (attached to an upper mold holder, not shown), and a cut-off annular (or long) ), that is, the edge portion 1b, is further provided with a cutting blade 5 for dividing the chips into shorter pieces. To be more specific, a lower mold auxiliary plate 6 is attached to the side surface 2a of the lower mold 2 with a screw 1, and a groove 8 is formed. 9 is a cutting blade holder in which a cutting blade 5 that divides the edge is fixed with a set screw 10;
The cutting blade 5 maintains a positional relationship substantially perpendicular to the edge cutting blade 4.

The cutting blades 5Fi are provided at a plurality of locations depending on the number of cutting blades 5Fi installed as described above.

11 is a set screw 1 for lower die 2 and cutting blade holder 9, respectively.
The lower mold hole 11 was installed in step 2.13 and the locate pin 3 was implanted therein, and 14 is a groove or chute for removing chips provided in the lower mold hole 11.

In this shearing press mold for plate materials, an upper mold hole (not shown) is further provided to be movable up and down in contrast to the fixed lower mold holder 11.

This upper mold hole has a number of dies 15 fixed at each position facing each of the dividing cutting blades 5 attached to the lower mold hole 11. Attach the edge cutting blade 4 to this die 15,
When the die 15 moves downward, the edge cutting blade 4 can also move downward.

Slightly after the start of edge cutting due to the downward movement of the edge cutting blade 4, the lower end surface of the die 15 cuts the edge 1 of the corrugated cardboard material 1 to be processed.
In addition, the die 15 is provided with a cutting edge 5 for cutting so that the die 15 can continue its downward movement.
It forms $16 which can be freely entered.

However, in such a conventional plate shear press type, each locating pin 3 is placed in the middle of a plurality of cutting blades 5.5 that divide the edge 1b, that is, in a position away from the dividing line by the cutting blades 5. Therefore, even if the plate material 1 is edge-cut with the edge-cutting blade 4 and then the cut-off edge 1b is separated by the cooperative action of the cutting blade 5 and the die 15, the locate pin 3 will not penetrate. The parting chips in the part where
4, the problem was that they were often left behind without falling automatically. The cumulative amount of man-hours required to remove the remaining chips by hand is extremely large when a continuous mass production system such as an automobile factory is used.

The present invention has been made to address these conventional problems, and provides a gate and a cage bin for penetrating the edge of a plate placed on a lower die and positioning the plate.

A shearing press for a plate material, in which a shearing press type is provided with an edge cutting blade that separates the edge, and a cutting blade that divides chips formed by the cut edges, and a locate pin is provided on the ifr line of the chips. By providing the mold,
The purpose is to solve the above problems.

The present invention will be described above based on the drawings.

FIGS. 3 to 5 are diagrams showing an embodiment of the present invention. It should be noted that the same components as those in the prior art are given l=1- symbols and detailed explanation thereof will be omitted.

First, the configuration will be explained. The locating pin 3 for positioning the corrugated board material 1, which is the plate material to be corrugated, is provided above the edge 1b of the first corrugated board material +liI'rs.

That is, in the reversing embodiment, a locating pin 3 having a slit formed therein so as to straddle and hold the cutting blade 5 that divides the edge 1b is attached to the cutting blade 5 and fixed with bolts 20.

As the fixing means, means such as pins, welding, or adhesives can also be used.

On the other hand, die 15 attached to the upper mold hole (not shown)
In this case, an escape groove 21 for the locating pin is formed by cutting out a portion facing the locating pin 3 provided on the dividing line.

In this embodiment, the cutting blade 5 is attached to the knife-shaped hole 11 via the cutting blade hole 9, and the die 15 is attached to the upper die hole, but it is possible to reverse the positional relationship between the two. Alternatively, the die 15 may be attached to the lower die hole 11 side, and the cutting blade 5 may be attached to the upper die hole side.

In that case, it is preferable to fix the locate pin 3 to the die 15 and to form an escape groove for the locate pin 3 toward the cutting edge 5.

Next, the action will be explained.

The corrugated cardboard material 1 is positioned with the locate pin 3 and placed on the lower mold 2, and the upper mold hole (not shown) is moved down. Then, the die 15 and the edge cutting blade 4 attached thereto also move downward, and the tip of the edge cutting blade 4 eventually reaches the upper surface of the corrugated pole material l. At this time, the lower surface of the die 15 does not reach the upper surface of the corrugated cardboard material, leaving some gap.

With the subsequent downward movement, the edge 1b of the corrugated cardboard material 1 begins to be cut off by the edge cutting blade 4. At this time, the lower surface of the die 15 comes into contact with the upper surface of the edge 1b, so the cut edge 1b is pressed directly toward the cutting blade 5, and is sequentially cut 9 and separated from the part that contacted the cutting blade 5. It is being done. Edge 1
The upper die holder 15 continues to move downward until the part b is completely separated, but during this time the edge cutting blade 4 enters into #18, the cutting blade 5 enters into the groove 16, and the locate pin 3 moves into the escapement 2.
It takes the form of entering into 1. Among the pieces of the divided edge 1b, the pieces of the part where the locating pin 3 is not installed naturally fall into the groove 14 of the knife-shaped hole goo 11 as in the conventional case. At the same time, the strip at the edge #Ib of the portion through which the locate pin 3 penetrates is also divided by the dividing line that wraps around the locate pin through hole, so unlike conventional ones, it is not held by the locate pin and the top pin, but is naturally separated. Then, it falls into the groove 14. When the cutting is completed, the upper die hole gou automatically rises, so that the gate for taking out the corrugated pole material 1 whose edges have been cut, and at this time, all of the edges 1b have fallen into #414. Incidentally, the chips in the cage 14 are removed at any time or automatically eliminated.

As explained above, according to the present invention, the locating pin for penetrating the edge of the plate placed on the lower mold and positioning the plate is placed on the cutaway at the edge. When the edge is further divided into small pieces, the effect is that the chips are not disturbed by the locating pin and left behind, and all the chips fall naturally at the same time as they are divided and can be easily removed.

Also, the installation of the location kite itself is easy because it is not installed in the lower mold hole as in the conventional case.

[Brief explanation of the drawing]

Fig. 1 is a plan view of the lower mold part of a conventional plate shearing press, Fig. 2 is a perspective view of the main part of Fig. Perspective view, Figure 4 (a)
is an explanatory diagram of the operation of the main part of this invention shown in Fig. 3 (divided @
), (b) - (b) M cross-sectional view of the same (b) bald) figure, 5th
The figure is also an explanatory diagram (after division) of the main parts of this invention. 1...Plate material 1b...Edge (of the plate material) 2...Lower die 3...Locate pin 4... ...... Edge cutting blade 5 ...... Cutting blade

Claims (1)

[Claims] Penetrate the edge of the plate placed on the F-type to 1Y1.
The locating pin is equipped with a locating pin that sets the flame, an edge cutting blade that separates the edge portion described in 11J, and a cutting blade that separates the chips formed by the separated edge portion, and the locating pin
1JIJ Akira press mold for plate material, which is characterized by being provided on #M.