JP3320332B2 - Rotary cutting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary cutting apparatus, and more particularly to a rotary cutting apparatus capable of cutting a material to be rolled such as a noodle band while being inclined with respect to the thickness direction of the material to be rolled. The present invention relates to a rotary cutting device.

[0002]

2. Description of the Related Art Conventionally, when noodles such as buckwheat noodles and udon are hand-made by a craftsman, a stretched and folded noodle band is cut with a knives and knives. Therefore, the cut edge was not perpendicular to the noodle band, but was cut slightly inclining so as not to cut the batten with a kitchen knife, and the cross-sectional shape of the noodle was rhombic or parallelogram. In the case of noodles made by hand, as a result of the noodle being manufactured in such a shape, the way of boil-up is different between the acute angle portion and the obtuse angle portion of the cross section, and the shape, tongue, taste and the like are varied.

On the other hand, when noodles such as udon and buckwheat are manufactured by a noodle-making machine, a band-shaped noodle band having a predetermined thickness is manufactured, and this is cut in a longitudinal direction by a rotary cutting device to cut the noodles. Had been manufactured. The rotary cutting machine cuts a noodle band by, for example, engaging two cutting blade rollers each having a shape in which two types of cylindrical cutting blades having the same thickness and a large radius and a small radius are alternately overlapped with each other. In the rotary cutting machine having such a configuration, the noodle band is cut perpendicularly to the surface, and the cross-sectional shape of the noodle is rectangular.

[0004] Japanese Patent Application Laid-Open No. 8-38027 discloses a rotary cutting device capable of producing noodles having a cross section of a hand-made wind, that is, a rhombus or a parallelogram. FIG. 3 is an enlarged sectional view showing the engagement of the cutting blade portions of the two conventional cutting blade rolls. Each blade 21
The cutting edge 22 has an annular inclined surface 23 inclined with respect to the rotation axis of the roller.

[0005]

In the above-mentioned conventional rotary cutting device capable of cutting obliquely, the cutting edge 22 of each blade portion 21 has an annular inclined surface 23 inclined with respect to the rotation axis of the roller. Since the inclined surfaces 23 are all formed in the same direction, an axial force is generated on the roller when the noodle band is cut. When the roller is displaced in the direction of the arrow in FIG. 3 by this force, the blade edges 22 do not mesh with each other, and cutting cannot be performed properly. Therefore, in the conventional cutting apparatus, in order to prevent the upper and lower rollers from shifting in the axial direction, for example, the above-mentioned conventional example shown in FIG.
There is a problem that a positioning mechanism such as that provided at both ends of the rollers 21 and 22 in (a) is required.

The present invention solves the above-mentioned problems of the prior art, and provides a rotary cutting device which can cut a noodle band obliquely and does not require a roller axial positioning means. With the goal.

[0007]

According to the present invention, there is provided a rotary cutting device for winding and cutting a noodle band, comprising: a first rotating roller having a shape in which a plurality of types of truncated cones having different radii are stacked in the axial direction; The radius of the rotating roller is such that it has a predetermined spacing between the corresponding frusto-conical shape and the protruding corner of the frusto-conical shape at least contacts the side or corner of the frusto-conical shape adjacent to the opposing frusto-conical shape. And a second rotating roller having a shape in which a plurality of different types of truncated cones are stacked in the axial direction.

The present invention has the above-described configuration, and the protruding corners of the frusto-conical shape of the upper and lower rollers are meshed with the frusto-conical side surfaces adjacent to the opposing frusto-conical shapes, so that the positions of the upper and lower rolls are different. It is fixed naturally and there is no need to provide any other positioning means. Further, since the noodle band is cut on both sides of the truncated cone-shaped cutting blade, the force generated in the axial direction of the roller is much smaller than in the conventional example.

[0009]

FIG. 1 is a front view (right) and a cross-sectional view (left) taken along the line AA 'showing the structure of a rotary cutting device 1 according to the present invention. An upper roll 2 and a lower roll 3 having the same shape are mounted on two shafts 4 and 5 rotatably supported by a frame of the rotary cutting device 1. An upper roll demon gear (not shown) is fixed to a shaft 4 of the upper roll 2, and a lower roll devil gear and a chain gear (not shown) meshing with the upper roll devil gear are fixed to a shaft 5 of the lower roll 3. Have been. A chain gear (not shown) is connected by a chain to a chain drive gear mounted on a shaft of a motor with a reduction gear (not shown).

In such a configuration, when the motor rotates, power is transmitted to the upper and lower rolls 2 and 3 via the chain and each gear, and the upper and lower rolls rotate in opposite directions. When the noodle belt is inserted there, the upper and lower rolls 2 and 3
The noodle band is cut at the cutting blade portions on both sides of the large frustoconical shape. The shaft 4 of the upper roll 2 is supported by a frame via an interval adjustment member (not shown) slidable with respect to the frame 1 in the horizontal direction. The gap between the rolls 2 and 3 is configured to be adjustable.

The roll 2 is a roller having a shape in which two types of truncated cones having different radii are alternately stacked in the axial direction in opposite directions, and the roller 3 is also formed of two types of truncated cones having different radii alternately in the axial direction. And the gap between the adjacent large truncated cones is arranged so as to fit with a gap with the large truncated cone of the first rotating roller. Each roller is manufactured, for example, by cutting a cylindrical material. Note that a truncated cone refers to a shape in which a cone is sliced perpendicularly to an axis, or a solid formed when a symmetric trapezoid is rotated about a vertical center as an axis.

FIG. 3 is an enlarged sectional view of a cutting blade portion of the roller according to the first embodiment. The first embodiment is shown in FIGS.
As shown in the figure, the direction and radius of the truncated cone are set so that the corners of the truncated cone are in contact with each other (specifically, the sides of each truncated cone are slightly in contact with each other). Having a structure. Between the truncated cone with a large radius of one roll and the corresponding truncated cone with a small radius of the other roll, there is a diamond-shaped or parallelogram gap about the thickness of the noodle belt. The cut noodle belt 10 is shaped into a rhombus or a parallelogram when passing through this gap.

FIG. 5 is a sectional view of the cut noodle belt 10. By making the cross section into such a shape, for example, the way in which the acute angle portion 11 and the obtuse angle portion 12 are boiled up is different, and the shape,
It is rich in tongue and taste.

FIG. 2 is an enlarged sectional view of a second embodiment of the cutting blade portion. Between the cutting edge of the large truncated cone and the corresponding truncated cone of the small radius, there is a diamond-shaped or parallelogram gap about the thickness of the noodle band,
The noodle belt 10 cut obliquely is shaped into a rhombus or a parallelogram when passing through this gap. In the second embodiment, since the directions of the cutting blades for cutting the noodle band are aligned, the cross section of the cut noodle band is more likely to be more accurately rhombic. However, in the cutting blade shown in FIG. 6, 7
Are configured to slide with each other. Therefore, there is a problem that frictional heat is generated in this portion.

FIG. 4 is an enlarged sectional view of a cutting blade portion of the third embodiment. As shown in FIG. 4, the third embodiment has a structure in which a shape P in which three truncated cones having different radii are combined in a direction opposite to that of FIG. 2 is repeatedly arranged. Therefore, in the third embodiment, since the direction in which the noodle band 10 is cut is constant, the noodle band 10 can be cut into a diamond shape, and the rollers have almost no sliding or frictional structure. In addition,
The number of truncated cones in the repetitive pattern P can be any natural number of 3 or more, and the angle of the acute angle of the rhombus can be set arbitrarily. However, since the circumference varies depending on the cutting blade, there is a problem that when a long noodle band is cut, distortion occurs.

Although the embodiments have been described above, the present invention may have the following modifications. In the embodiment, the example in which the thicknesses of the truncated cone-shaped cutting blades are all uniform is disclosed, but the thickness of actual hand-made noodles slightly changes. Therefore, also in the present invention, the thickness of the cutting blade is made different, for example, in the case of udon, half is 2.5 mm and the other half is 3 mm.
Millimeters can change the width of the noodles. The types of width may be three or more, and it is arbitrary whether to produce what width and in what proportion, or what width is assigned to which position of the roll.

In the embodiment shown in FIG. 1, the inclination directions of the truncated cones are all the same. However, if the roller is made symmetrical in the axial direction by, for example, reversing the inclination direction at the center, the axial direction during cutting can be reduced. And the force on the

[0018]

As described above, the rotary cutting device according to the present invention can cut the noodle belt obliquely and the upper and lower rollers are flanked by the truncated cone-shaped cutting blades. Is naturally fixed, and there is an effect that it is not necessary to provide any other positioning means. In addition, since the noodle band is cut on both sides of the truncated cone-shaped cutting blade, the force generated in the axial direction of the roller is much smaller than in the conventional example,
This also has the effect of reducing blade wear and the like.

[Brief description of the drawings]

FIG. 1 is a front view (right) showing a structure of a rotary cutting device 1 of the present invention, and a cross-sectional view (left) taken along a line AA ′.

FIG. 2 is an enlarged sectional view of a cutting blade portion of a second embodiment.

FIG. 3 is an enlarged sectional view of a cutting blade portion.

FIG. 4 is an enlarged sectional view of a cutting blade portion of a third embodiment.

FIG. 5 is a sectional view of the cut noodle belt 10.

FIG. 6 is an enlarged cross-sectional view showing engagement of cutting blade portions of two conventional cutting blade rolls.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Rotary cutting apparatus, 2, 3 ... Roller, 4, 5 ... Roller shaft, 6, 7, 8, 9 ... Contact part, 10 ... Cut noodle band (noodle), 11 ... Sharp corner part, 12 ... Obtuse angle Part, 21 ... blade part, 2
2 ... cutting edge, 23 ... inclined part

Claims (2)

(57) [Claims] 1. A rotary cutting device for winding and cutting a noodle band, comprising: a first truncated cone; and a second truncated cone having the same thickness as the first truncated cone and smaller in diameter than the first truncated cone. A first and a second rotating roller having a shape in which a plurality of frusto-conical shapes are stacked coaxially so that their larger circular planes are in contact with each other, and are arranged in the axial direction; The second circular roller so that the circumference of the first circular truncated conical wide circular plane is in contact with the circumference of the narrow circular first frustoconical circular plane of the second rotating roller. A rotating roller is provided with respect to the first rotating roller;
A rotary cutting device characterized by being arranged in the same direction at predetermined intervals so that axes are parallel. 2. The rotary cutting device according to claim 1, wherein the thickness of the truncated cone varies depending on the position in the axial direction.