JPH06155145A - Shape steel cutting device - Google Patents

Abstract

PURPOSE:To cut shape steels in large and small sizes by using a moving blade and a fixed blade. CONSTITUTION:In a shape steel cutting device for cutting shape steel inserted to a cut-in part 32 by providing a moving blade 20, provided with the cut-in part 32 of sectional shape of the shape steel to be cut, and a fixed blade to overlap the moving blade 20 with the fixed blade moved in a condition that the moving blade 20 is brought into contact with a surface of the fixed blade, the cut-in part 32 of shape, where common parts of sectional shape of the shape steel in large and small size are made in agreement, is provided respectively in the moving blade 20 and the fixed blade. An insertion blade 35 for closing the cut-in part 32 can be mounted on a part 34 where the sectional shape of the shape steel in large size and the sectional shape of the shape steel in small size are branched from the common part of the cut-in part 32.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION This invention relates to H-shaped steel, grooved steel, and C-shaped steel.
The present invention relates to a mold steel cutting device for cutting a mold steel such as a mold steel.

[0002]

2. Description of the Related Art FIG. 26 is a cross-sectional view of an H-shaped steel 1 as an example of a shaped steel. A conventional apparatus used for cutting the H-shaped steel 1 into a required length will be described. As shown by 27, the cut portion 2 of the H-shaped steel 1 is provided,
A movable blade 3 whose four corners are cut off obliquely, and a rectangular fixed blade 5 having a slightly larger outer dimension than the movable blade 3 described above are provided with cut portions 4 having the same H-shaped steel 1 cross-sectional shape as shown in FIG. Then, the movable blade 3 and the fixed blade 5 are a vertical sectional front view of FIG. 29 and a sectional view taken along line XXX-XXX of FIG. 29.
As shown in 0, the cutting device is mounted in the mounting frame 6 in a stacked state.

The inner dimension of the mounting frame 6 is sized to hold the fixed blade 5 closely, and the fixed blade 5 mounted in the mounting frame 6 is held by the mounting frame 6 in a fixed state.

On the other hand, the movable blade 3 has a smaller size than the inside of the mounting frame 6, and the diagonal portions of the upper right and lower left in FIG. The contact point is in contact with the inclined portion of the pressing piece 8, and the obliquely upper left position is in contact with the inclined portion of the pressing piece 9.
The pressing piece 8 is biased to the left by the restoring spring 10,
The push-down piece 9 can be pushed down from the outside of the mounting frame 6. Therefore, the moving blade 3 is pushed to the upper left of FIG. 29 by the pressing piece 8, and is held in a state where the upper edge and the left edge of the moving blade 3 are in contact with the inside of the mounting frame 6.

The movable blade 3 held by the mounting frame 6 in this way
Since the notch 2 and the notch 4 of the fixed blade 5 are arranged in a straight line, the H-shaped steel 1 of FIG. After arranging the portion to be cut of 1 on the boundary where the movable blade 3 and the fixed blade 5 of FIG. 30 are in contact, the pressing piece 9 of FIG. 29 is pushed down from the outside of the mounting frame 6 by a ram (not shown) of the cutting device. And the movable blade 3 is in contact with the fixed blade 5, the guide piece 7
The H-shaped steel 1 is cut by being pushed down along the inclination of and the shearing between the movable blade 3 and the fixed blade 5.

FIG. 31 is a sectional view of an H-section steel 11 different from that of FIG. 26. This H-section steel 11 is higher than the H-section steel 1 of FIG. 26 in height, position of horizontal portion with respect to vertical portion, and member thickness. The height is the same, but the width is a small size smaller than the H-section steel 1 in FIG.

When cutting the H-shaped steel 11 of FIG. 31,
A moving blade provided with a cut portion having a cross-sectional shape of H-shaped steel 11 and a fixed blade provided with a cut portion having the same H-shaped steel 11 cross-sectional shape are prepared, and these moving blades and fixed blades of a cutting device are provided. The H-shaped steel 11 is cut by mounting the mounting frame 6 in a stacked state and pushing down the pressing piece 9.

[0008]

In the conventional cutting device,
Even if the same type of steel (for example, H-shaped steel) has a common cross-sectional shape, if there is a difference between the large size and the small size, a moving blade and a fixed blade with cuts of the respective cross-sectional shapes are provided. Had to be prepared, and there was a drawback that the number of movable blades and fixed blades increased.

The present invention solves the above drawbacks of the prior art by providing a set of movable blades, large and small, as long as the same type steel has a common sectional shape. It is an object of the present invention to provide a die steel cutting device that can cut with a fixed blade and reduce the number of preparations of a movable blade and a fixed blade.

[0010]

The die steel cutting device of the present invention comprises a movable blade and a fixed blade each provided with a cut portion having a cross-sectional shape of the die steel to be cut, and moves the movable blade and the fixed blade in an overlapping manner. In the shape steel cutting device that moves the blade in contact with the surface of the fixed blade and cuts the shape steel inserted in the cut portion, a shape in which the cross-sectional shape of the large-sized steel and the cross-sectional shape of the small-sized steel are matched. Each of the moving blade and the fixed blade are provided with a cutting portion of, and a cross-sectional shape of the large-sized steel and the sectional shape of the small-sized steel are branched from the common portion of the cutting portion, and a cutting blade that closes the cutting portion is provided. It is characterized in that it can be mounted.

[0011]

[Operation] A cutting blade of a movable blade or a fixed blade is appropriately attached to a portion where the cross-sectional shape of a large-sized steel and the cross-sectional shape of a small-sized steel branch from a common portion, and one branch of the cut portion is closed. As a result, as long as the same type of shape steel is used, it is possible to cut large and small pieces with one set of movable blade and fixed blade.

[0012]

Embodiments of the present invention will be described below.

FIG. 6 shows the large H-section steel 1 of FIG. 5 and FIG.
Is a front view of an embodiment of a movable blade 20 capable of cutting the small H-shaped steel 11 of FIG. 7, and FIG. 7 is a front view of an embodiment of a fixed blade 21 used with the movable blade 20 of FIG. Yes, large H-shaped steel 1 and small H-shaped steel 11 have a height of 2
2. Horizontal part 2 for vertical parts 23, 24, 25, 26
The positions of 7, 28 and the member thickness 29 have the same dimensions, but only the left and right widths 30, 31 are smaller than the large H-shaped steel 1 for the small H-shaped steel 11. is there.
If the members have the same thickness 29, the vertical portions 23, 24
It is possible to cut even if the heights 22 of 25 and 26 are not the same.

The movable blade 20 shown in FIG. 6 and the fixed blade 21 shown in FIG. 7 are provided with notches 32 and 33, respectively. The notches 32 and 33 have the same shape, and the large H-shaped steel 1
The left vertical part 23 and the left vertical part 25 of the small H-shaped steel 11 are overlapped. Therefore, the left side from the branch portion 34 of the cut portions 32 and 33 is the H-shaped steel 1, 11
Although the shape is common to all, the right side from the branch portion 34 of the cut portions 32 and 33 corresponds to only the large H-shaped steel 1, and the upper and lower portions from the branch portion 34 of the cut portions 32 and 33 are the small H-shaped steel. The shape corresponds to only 11.

Next, the movable blade 20 of FIG. 6 and the fixed blade 2 of FIG.
The case of cutting the large H-section steel 1 of FIG. 5 using 1 and will be described.

When cutting a large H-shaped steel 1, as shown in FIG.
As shown in FIG. 5, an insert blade 35 described below is attached to the upper side of the branch portion 34 of the cut portion 32 of the movable blade 20 from the surface side of the movable blade 20, and is fixed to the surface of the movable blade 20 with a bolt 36. Further, as shown in FIG. 2, the insert blade 35 is also attached to the lower side of the branch portion 34 of the cutout portion 33 of the fixed blade 21 from the back side of the fixed blade 21, and is fixed to the back surface of the fixed blade 21 with a bolt (not shown).

FIG. 8 is a plan view of the insert blade 35, FIG. 9 is a front view, and FIG. 10 is a rear view. As shown in these drawings, the insert blade 35 has a square head 37, Head 37
On the back surface of the fixed blade 21 on the branch portion 34 of the movable blade 20.
A protrusion 38 that closely fits is provided below the branch portion 34, and bolt insertion holes 39 are formed on both sides thereof. The attachment of the insert blade 35 to the movable blade 20 and the fixed blade 21 described above is performed by setting the protrusion 38 on the branch portion 34 of the movable blade 20 and the fixed blade 2.
One is tightly fitted under the branch portion 34, and the notches 32 and 33 at the portion connected to the branch portion 34 are closed.

The movable blade 2 thus equipped with the insert blade 35
When cutting the large H-shaped steel 1 by the 0 and the fixed blade 21, it is mounted in the mounting frame 6 of the cutting device in a stacked state and used as in the conventional case. FIG. 3 is a vertical sectional side view at that time, and FIG. 4 is a sectional view taken along the line IV-IV of FIG.
The same reference numerals are given to the same portions as.

The notch 32 of the movable blade 20 and the notch 33 of the fixed blade 21 held by the mounting frame 6 are aligned on a straight line, and the notches 32, 33 are formed in the large H-shaped steel 1 shape. Since the insert blade 35 is not attached, the H-shaped steel 1 can be inserted into the cut portions 32 and 33. When the H-shaped steel 1 is inserted into the notches 32 and 33 and the push-down piece 9 is pushed down, the movable blade 20 is pushed down along the inclination of the guide piece 7 while being in contact with the fixed blade 21, and the H-shaped steel 1 is Be disconnected.

A case of cutting the small H-shaped steel 11 of FIG. 11 using the above-mentioned movable blade 20 of FIG. 6 and fixed blade 21 of FIG. 7 will be described below. The movable blade 20 is shown in FIG. The fixed blade 21
As shown in FIG. 13, the insert blade 35 is attached from the back side of the fixed blade 21 to the right side of the branch portion 34 of the cut portion 33 for use.

When the movable blade 20 and the fixed blade 21 in the states shown in FIGS. 12 and 13 are mounted in the mounting frame 6 in the state of being overlapped as shown in FIG. 3, the cut portion 32 of the movable blade 20 and the fixed blade 21 are mounted. Is aligned with the notch 33 of the notch, and the notch 3
2 and 33 small H-shaped steel 11 shaped parts have a blade 3
Since the 5 is not attached, the H-shaped steel 11 can be inserted into the notches 32 and 33. And the notches 32, 3
When the H-shaped steel 11 is inserted into 3 and the push-down piece 9 is pushed down, the movable blade 20 is pushed down along the inclination of the guide piece 7 while being in contact with the fixed blade 21, and the H-shaped steel 11 is cut.

Next, the large grooved steel 40 of FIG. 14 and FIG.
A case of cutting the small channel steel 41 of No. 7 will be described. The large groove steel 40 and the small groove steel 41 have a height of 4
2 and the member thickness 43 have the same size, but the left and right widths 44,
Only 45 is a large channel steel 40, whereas a small channel steel 41 is
Has a smaller size. Note that cutting is possible even when the heights of the two are different.

In this case, the movable blade 46 shown in FIG. 15 and the fixed blade 47 shown in FIG. 16 are used. Moving blade 46 and fixed blade 4
7 are provided with notches 48 and 49, respectively, and the notches 48 and 49 have the same shape, and the left vertical portion 50 of the large grooved steel 40 and the left side of the small grooved steel 41 are provided. It has a shape in which the vertical portion 51 is overlapped.
Therefore, the left side from the branch portion 52 of the cut portions 48, 49 has a shape common to the grooved steels 40, 41, but the cut portion 4
The right side of the branch portions 52 of 8 and 49 has a shape corresponding to only the large grooved steel 40, and the upper portion of the branch portion 52 has a shape corresponding to only the small grooved steel 41.

When cutting the large channel steel 40 of FIG. 14, as shown in FIG. 15, the insert blade 35 is attached to the upper side of the branch portion 52 of the movable blade 46 from the surface side of the movable blade 46. When the fixed blade 47 is used in a state where the insert blade 35 is not mounted as shown in FIG. 16, the large groove steel 40 can be cut. In this case, the shape of the projection 38 of the insert blade 35 mounted from the surface side of the movable blade 46 is adapted to the outer radius R of the corner of the channel steel 41.

When cutting the small grooved steel 41 of FIG. 17, the movable blade 46 is used without the insert blade 35 as shown in FIG. 18, and the fixed blade 47 is cut as shown in FIG. The insert blade 35 is attached to the right side of the branch portion 52 of the portion 49 from the back side of the fixed blade 47 for use. In this case, the shape of the protrusion 38 of the insert blade 35 attached is such that the lower end of the tip projects like a blade, and the outer radius R of the corner of the grooved steel 41 is rounded.
It will be adapted to.

Next, the large C-shaped steel 53 shown in FIG.
The case of cutting the small C-shaped steel 54 of No. 3 will be described. The height of the large C-shaped steel 53 and the small C-shaped steel 54 is 5
5, the member thickness 56 and the size of the refraction portion 57 are the same, but the left and right widths 58 and 59 are smaller in the small C-shaped steel 54 than in the large C-shaped steel 53. There is something.

In this case, the movable blade 60 shown in FIG. 21 and the fixed blade 61 shown in FIG. 22 are used. Moving blade 60 and fixed blade 6
1 are provided with notches 62 and 63, respectively, and the notches 62 and 63 have the same shape, and the left vertical portion of the large C-shaped steel 53 and the vertical portion of the small C-shaped steel 54. It is in the shape of overlapping. Therefore, the left side from the branch portion 64 of the cutout portions 62, 63 is the C-shaped steel 53, 54.
Although the shape is common to all, the right side of the branch portion 64 of the notches 62 and 63 is a shape corresponding to only the large C-shaped steel 53, and the upper portion of the branch portion 64 is a shape corresponding to only the small C-shaped steel 54. Become.

When cutting the large C-shaped steel 53 of FIG. 20, the insert blade 35 is attached from the front side of the movable blade 60 to the upper side of the branch portion 64 of the movable blade 60 as shown in FIG. When the fixed blade 61 is used without the insert blade 35 attached as shown in FIG. 22, the large C-shaped steel 53 can be cut.

When cutting the small C-shaped steel 54 of FIG. 23, the movable blade 60 is used without the insert blade 35 as shown in FIG. 24, and the fixed blade 61 is cut as shown in FIG. The insert blade 35 is attached to the right side of the branch portion 64 of the portion 63 from the back side of the fixed blade 61 for use.

The present invention can be applied not only to H-section steel, groove-section steel and C-section steel, but also to section steels having other cross-sectional shapes, and not only two types, large and small, but also a part of the cross-sectional shape It can also be applied to a plurality of common type steels, for example, H type steel and groove type steel.

[0031]

According to the present invention, it is not necessary to prepare moving blades and fixed blades having respective cross-sectional shapes as long as they are shaped steels having a common cross-sectional shape. By changing the mounting of the insert blade, it is possible to cut the shaped steels of different sizes, which has the effect of reducing the number of moving blades and fixed blades.

[Brief description of drawings]

FIG. 1 is a front view of a use state of an embodiment of a movable blade used in the present invention.

FIG. 2 is a front view of an embodiment of a fixed blade used in the present invention in one usage state.

FIG. 3 is a vertical cross-sectional side view when H-shaped steel is cut by the moving blade of FIG. 1 and the fixed blade of FIG.

4 is a sectional view taken along the line IV-IV in FIG.

5 is a cross-sectional view of H-section steel cut by the moving blade of FIG. 1 and the fixed blade of FIG.

FIG. 6 is a front view of an embodiment of a movable blade used in the present invention.

FIG. 7 is a front view of an embodiment of a fixed blade used in the present invention.

FIG. 8 is a plan view of an embodiment of an insert blade used in the present invention.

9 is a front view of FIG. 8. FIG.

FIG. 10 is a rear view of FIG.

11 is a sectional view of an H-section steel different from that in FIG.

FIG. 12 is a front view of a movable blade when cutting the H-section steel of FIG. 11.

FIG. 13 is a front view of a fixed blade when cutting the H-section steel of FIG. 11.

FIG. 14 is a cross-sectional view of channel steel.

15 is a front view of a moving blade when cutting the channel steel of FIG. 14. FIG.

16 is a front view of a fixed blade when cutting the channel steel of FIG. 14. FIG.

FIG. 17 is a sectional view of a channel steel different from that in FIG.

FIG. 18 is a front view of a moving blade when cutting the channel steel of FIG. 17.

FIG. 19 is a front view of the fixed blade when the channel steel of FIG. 17 is cut.

FIG. 20 is a cross-sectional view of C-type steel.

21 is a front view of the movable blade when the C-shaped steel of FIG. 20 is cut. FIG.

22 is a front view of the fixed blade when cutting the C-shaped steel of FIG. 20. FIG.

FIG. 23 is a cross-sectional view of a C-section steel different from that in FIG. 20.

FIG. 24 is a front view of the movable blade when the C-shaped steel of FIG. 23 is cut.

FIG. 25 is a front view of the fixed blade when the C-shaped steel of FIG. 23 is cut.

FIG. 26 is a cross-sectional view of H-section steel.

27 is a front view of a conventional moving blade for cutting the H-section steel of FIG. 26. FIG.

28 is a front view of a conventional fixed blade for cutting the H-section steel of FIG. 26. FIG.

29 is a vertical cross-sectional front view of a conventional device when cutting the H-section steel of FIG. 26. FIG.

FIG. 30 is a sectional view taken along the line XXX-XXX in FIG. 29.

FIG. 31 is a sectional view of an H-section steel different from that in FIG. 26.

[Explanation of symbols]

 1 H-shaped steel 2 Cutting part 3 Moving blade 4 Cutting part 5 Fixed blade 6 Mounting frame 7 Guide piece 8 Pressing piece 9 Pushing piece 10 Restoring spring 11 H-shaped steel 20 Moving blade 21 Fixed blade 22 Height 23 Vertical part 24 Vertical part 25 Vertical Part 26 Vertical part 27 Vertical part 28 Vertical part 29 Member thickness 30 Width 31 Width 32 Cut part 33 Cut part 34 Branch part 35 Insert blade 36 Bolt 37 Head part 38 Protrusion 39 Bolt insertion hole 40 Groove type steel 41 Groove type steel 42 Height 43 member thickness 44 width 45 width 46 moving blade 47 fixed blade 48 notch portion 49 notch portion 50 vertical portion 51 vertical portion 52 branch portion 53 C type steel 54 C type steel 55 height 56 member thickness 57 bending portion 58 width 59 width 60 Moving blade 61 Fixed blade 62 Notch 63 Notch 64 Branch

Claims (1)

[Claims] 1. A movable blade and a fixed blade, each of which is provided with a cut portion having a cross-sectional shape of a die steel to be cut, and the movable blade and the fixed blade are overlapped with each other to move the movable blade in contact with the surface of the fixed blade. Then, in the mold cutting device for cutting the mold steel inserted into the notch, the movable blade and the fixed blade have a notch having a shape in which the cross-sectional shape of the large-sized steel and the cross-sectional shape of the small-sized steel are matched. Provided, at the location where the cross-sectional shape of the large-sized steel and the cross-sectional shape of the small-sized steel diverge from the common portion of the cut portion, it is possible to attach a blade for closing the cut portion. Cutting device.