JPS5841064Y2 - Cutting device for raw materials for cutlery - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a device for cutting raw materials for cutlery.

For example, in the production of paper carton punching dies, when cutting a so-called Thomson blade raw material that is a strip-shaped member to be cut, it is not only cut to a certain size, but also bent into an appropriate shape in advance. However, since there are many edges to cut, it is difficult to cut with just a press cutter, and the bracelet itself is also large, making it difficult to use.

Therefore, a cutting device called a radicle is generally used.

However, the radicle is small 5, and although it is easy to use because it is manual, unlike when cutting is done at once by reciprocating motion of the upper and lower blades as in press processing, the upper and lower blades do not cut at once. Because it is a push-cut type that gradually cuts from one end of the raw knife material to the other end in the width direction by the shearing action caused by relative rotation via the pivot point with the lower blade, when cutting the raw material for the knife, it is difficult to cut the cutting part. Particularly, the tapered blade part has the disadvantage of sag or curvature, which causes the cutting edge to lose its straightness, impairing the cutting function of the blade edge.

Therefore, in view of the above-mentioned problems, the present invention aims to prevent the occurrence of drooping or curvature of the blade at the cut part when cutting the raw material for cutlery. A rotating arm body is rotatably supported on the body, a lower blade and an upper blade are respectively attached to the infantile base body and the rotating arm body, and a base portion whose upper and lower sides are parallel surfaces, and one side of the base body. In an apparatus for cutting a band-shaped cutter raw material consisting of a double-edged or single-edged sharpened blade portion with an inclined surface, by shearing action caused by relative rotation of the upper blade and the lower blade around the pivot portion, the lower blade The blade has a lower cutting blade for cutting the blade part and a lower blade for cutting the base part, each of which has a shape that follows the shape of the lower surface of the blade and the lower surface of the base of the raw material for the blade, in the cutting direction, and the lower blade for cutting the blade The blade is provided on the pivot side, and the upper blade is provided on the pivot side corresponding to the lower blade for cutting the blade, and the upper blade is formed into the shape of the sloped surface of the upper surface of the blade at the initial stage of cutting the blade of the raw material. It consists of an upper blade for cutting the blade portion having a contoured shape, and an upper blade for cutting the base portion provided in the cutting direction continuously with the upper blade for cutting the blade portion, and the upper blade for cutting the blade portion and the lower blade. The point is that the blade part of the raw material for cutlery can be sheared at the same time.

Hereinafter, embodiments of the present invention will be described in detail based on the drawings. In FIGS. 1 to 3, 1 is a cutting machine, which includes a young root body 2 fixed to a mounting table, etc., and one end of the body 2. At fulcrum part 3
a rotating arm body 5 pivoted by a shaft 4, and a handle pivoted by a shaft 6 at the other end of the main body 2 and operating the rotating arm body 5 through a boosting configuration. It consists of Part I.

Reference numeral 8 denotes a raw material for a knife, which is a double-edged type strip-like material consisting of a base part 9 whose upper and lower sides are parallel flat surfaces, and a blade part 10 which is sharpened by a pair of inclined surfaces on one side of the base part 9. This example shows the Thomson blade.

Reference numeral 11 denotes a guide body, which is detachably attached to the main body 2 through bolt fastening.

Reference numeral 12 denotes a stopper which comes into contact with the cutter raw material 8 fed from the guide body 11 and stops the feed of the cutlery raw material 8 at a desired length. It is detachably attached to the body 5, and is configured to be movable and adjustable in the feeding direction of the cutter raw material 8.

Reference numeral 13 denotes a lower blade fixing member, which is bolted to the main body 2, and a lower blade 15 for cutting the base portion cutting material 8 and a blade portion in a recess 14 formed in the lower blade fixing member 13. A lower cutting blade 16 is removably fitted thereto.

As shown in FIGS. 2 and 3, the lower blade 15 for cutting the base portion, the lower blade 16 for cutting the blade portion, the base portion 9 of the raw material 8 for the cutlery.
It is formed in a shape that follows the shape of the lower surface and the lower surface of the blade portion 10, and the lower blade 16 for cutting the blade portion and the lower blade 15 for cutting the base portion are continuous in the cutting direction.

The lower cutting blade 16 of the folded blade portion is located on the fulcrum portion 3 side.

The blade portion 10 and the lower surface of the base portion 9 of the cutter raw material 8 are configured to be supported by surface contact over the entire cutting portion.

In addition, the lower blade 16 for cutting the blade portion is used to cut the blade portion 1 of multiple types of blade raw materials 8.
It is provided with a plurality of contact surfaces 17 having different inclination angles so as to be able to make surface contact with and support the contact surface 17, and can be changed freely by reversing the device.

Additionally, an upper blade fixing recess 18 is formed at a position corresponding to each of the lower blades 15 and 16 of the rotary arm body 5, and a base for cutting the blade raw material 8 is formed in the recess 18. The upper blade 19 for cutting the portion and the upper blade 20 for cutting the blade portion are detachably fitted to each other.

As shown in FIG. 3, at the beginning of cutting the raw material 8, the slope of the upper surface of the blade 10 is designed to enable surface contact with the upper surface of the blade 10 of the raw material 8 over the entire cutting area. An upper blade 20 for cutting the blade portion is formed in a shape that follows the shape, and an upper blade 19 for cutting the base portion continues in the cutting direction with the upper blade 20 for cutting the blade portion.
is provided.

Then, the entire blade part 10 of the cutlery raw material 8 is cut with the upper blade for cutting the blade part.
0 and the lower blade 16 at the same time.

Incidentally, the upper blade 20 for cutting the blade portion is used to cut the blade portion 1 of multiple types of blade raw materials 8.
Cutting portions 2 with different inclination angles to enable surface contact with 0.
1, and can be changed freely by reversing the device.

In addition, when cutting the base part 9 of the cutter raw material 8, if the angle at which the upper blade 19 and the lower blade 15 intersect, that is, the shear angle, is small, the area of the base part 9 to be simultaneously sheared is large. Therefore, a large operating force is required. Conversely, if the shear angle is a dog, the operating force is light, but there is a drawback that the base portion 9 of the cutlery raw material 8 is curved in the width direction.
When gradually shearing the base part 9 in the width direction from one side to the other by the upper blade 19 and the lower blade 15 for cutting the base part, the angular force at which each upper blade 19 and the lower blade 15 intersect ^ With appropriate operating force, Also, the angle is set appropriately so that no curvature occurs.

Since the embodiment of the present invention is configured as described above, when cutting the Thomson blade, which is the knife raw material 8, for example,
The guide body 11 is adjusted to an appropriate position and fixed, and the position of the stopper 12 is adjusted to cut to a desired length. As shown in FIG. bring it into contact with.

Then, by operating the handle part 7 up and down, the rotating arm body 5
rotates, and the raw material 8 of the cutlery is moved between the upper blade 19.20 and the lower blade 15,
The knife raw material 8 is cut into a desired length by the punch action of 16.

During this cutting, the entire blade part 10 of the raw material 8 is simultaneously sheared by the upper cutting blade 20 and the lower blade 16, so that both the raw material 8 side and the side to be cut off are shown in FIG. As shown, the blade portion 10 does not sag or curve at the cutting portion.

Therefore, damage to the cutting edge of the cutting portion can be prevented, so that the cutting function of the cutting edge is not impaired.

In addition, in the cutting stage of the base portion 9 of the knife raw material 8, the upper blade 19 and lower blade 15 for cutting the base portion are configured to be able to gradually □ shear, so a strong force is not required to operate the handle portion γ. It is easy to use and efficient.

Further, even when cutting the raw material 8 for cutting tools after bending it into an appropriate shape in advance, the cutting can be easily performed in the same manner as described above.

When cutting the blade portion 10 of the housing raw material 8 for cutting, the desired contact surface 17 and cutting portion 21 can be obtained by appropriately reversing the upper blade 20 and lower blade 16 for cutting the blade portion. Just select and install it.

Alternatively, the upper blade 20 and lower blade 16 may be replaced with the upper blade 20 and lower blade 16 of a backup, as appropriate.

FIG. 6 shows an embodiment in which a single-edged knife raw material 8 is cut.

In addition, since the blade part 10 of the knife raw material 8 and the lower surface of the base part 9 are on the same plane, the lower blade 15 for cutting the base part is the same as the lower blade 1 for cutting the blade part.
6 is integrated.

FIG. 7 shows a state in which the blade part 10 of the cutlery raw material 8 is sagging. This phenomenon occurs when cutting gradually from one end to the other.

The present invention is a device for cutting raw materials for cutlery using a perforation action, and is configured so that the blade of the raw material for cutlery can be simultaneously parsed by the upper and lower blades for cutting the cutter. This method has the advantage that drooping and curvature of the blade parts at both the raw material side and the cut-off side are prevented from occurring, and the cutting function of the cutting edge of the cutting part is not impaired.

[Brief explanation of the drawing]

Figure 1 is a perspective view showing an embodiment of the present invention, Figure 2 and Figure 3 are perspective views showing an embodiment of the present invention.
The figure is a sectional side view of the main part of the embodiment of the present invention, Fig. 4 is an explanatory diagram showing the cutting process in the embodiment of the present invention, Fig. 5 is a partial sectional view of the raw material for a knife, and Fig. 6 is a cross-sectional view of other parts. FIG. 7 is a side sectional view of the main part showing the embodiment, and is a partial sectional view of the raw material for a cutlery showing a state in which a sag has occurred in the blade part. 1...Radicle, 8...Knife raw material, 9...
...Base part, 10...Blade part, 15, 16.
...Lower blade, 19,20...Upper blade.

Claims (1)

[Scope of utility model registration request] A rotary arm body is rotatably supported on the cutting machine body, a lower blade and an upper blade are respectively attached to the young root body and the rotary arm body, and a base portion whose upper and lower surfaces are parallel to each other is connected to the base portion. In a device for cutting a band-shaped cutter raw material consisting of a double-edged or single-edged sharpened blade part with an inclined surface on one side, by shearing action due to relative rotation of the upper blade and the lower blade around the pivot part, The lower blade includes, in the cutting direction, a lower blade for cutting the blade part and a lower blade for cutting the base part each having a shape that follows the shape of the lower surface of the blade and the lower surface of the base of the raw material for the blade, and The lower blade is provided on the pivot side, and the upper blade is provided on the pivot side in correspondence with the lower blade cutting blade, and the upper blade is provided on the pivot side in correspondence with the lower blade for cutting the blade, and the upper blade is provided on the inclined surface of the upper surface of the blade at the initial stage of cutting the blade raw material. It consists of an upper blade for cutting the blade portion shaped to follow the shape, and an upper blade for cutting the base portion provided in the cutting direction continuously with the upper blade for cutting the blade portion, and the upper blade for cutting the blade portion and the lower blade for cutting the blade portion. A cutting device for cutter raw material, characterized in that the blade part of the cutter raw material can be simultaneously sheared with and.