TWI670126B - End face cutting device and end face cutting method - Google Patents

Abstract

An end face cutting apparatus comprising: a rotating body portion; and a cutting portion having a fixing portion fixed to the rotating body portion and a cutting edge portion protruding from the fixing portion toward the end surface, wherein the cutting edge portion is on the rotating body An end portion on the downstream side in the rotation direction of the portion has a blade edge that cuts an end surface of the laminated body of the sheet material, and the blade edge is configured to be inclined with respect to a direction orthogonal to a side surface portion of the cutting edge portion, and is opposite to the rotation The imaginary straight line passing through the end portion of the cutting edge on the side of the rotating shaft is orthogonal to the downstream side in the rotational direction.

Description

Face cutting processing device and end face cutting processing method

The present invention relates to an end face cutting apparatus and an end face cutting method.

Conventionally, a sheet such as a polarizing plate is cut into a specific shape and size piece by piece by a rotating blade having a blade portion on the outer peripheral edge, and is used for various purposes.

Since the burr is generated on the end surface of the sheet formed by the cutting, or the adhesive overflows and becomes a rough state, a face cutting device for cutting the end surface of the sheet is proposed in order to remove the burr.

For example, an end face cutting device includes a rotating body portion having a rotating shaft and rotating about the rotating shaft, and a cutting portion fixed to one surface of the rotating body portion and facing the sheet The end surface of the laminated layer is subjected to cutting processing, and the cutting portion has a fixing portion fixed to the rotating body portion, and a cutting edge portion protruding from the fixing portion toward the end surface of the laminated body, and the cutting edge portion is located at the rotating body portion The end portion on the downstream side in the rotation direction has a cutting edge that cuts the end surface (see Patent Document 1). In the end surface cutting apparatus, the cutting edge is formed in a direction orthogonal to the side surface portion of the cutting edge portion, and the downstream side of the cutting portion (ie, the cutting edge portion) in the rotation direction is located on the rotating shaft side. The entire cutting portion is inclined, and the blade tip is inclined toward the downstream side in the rotation direction with respect to an imaginary straight line passing through the end portion of the rotating shaft and the rotating shaft side of the cutting edge. oblique.

According to the cutting apparatus, the blade edge is inclined toward the downstream side in the rotation direction with respect to the virtual straight line, and the laminated body (the laminated sheet can be suppressed while suppressing cracking or delamination of the sheet) The end face is subjected to end face machining.

[Previous Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2011-93086

However, in the end face cutting apparatus described in Patent Document 1, when the cutting edge portion rotates in accordance with the rotation of the rotating body portion, the upstream side (rear end side) of the cutting blade portion in the rotation direction and the laminated body (sheet) The uncut region of the end face is in contact with each other, and as a result, the end face cutting process cannot be sufficiently performed.

Here, in order to prevent the cutting edge portion from coming into contact with the uncut region, it is conceivable that the cutting edge portion is provided with an inclined portion that is inclined from the blade edge toward the end opposite to the blade edge and that is inclined away from the end surface.

However, if the angle (the rake angle and the radial rake angle) of the inclined portion is made large, the strength of the cutting edge portion may be lowered accordingly.

In view of the above, an object of the present invention is to provide an end face cutting apparatus and an end face cutting method capable of suppressing cracking and peeling, and having a relatively high strength of a cutting portion and capable of sufficiently performing end face cutting.

The face cutting processing device of the present invention is for the end face of the laminated body formed by laminating the sheets. The row cutter includes: a rotating body portion having a rotating shaft and rotating around the rotating shaft; and a cutting portion fixed to one surface of the rotating body portion to cut the end surface; and the cutting portion a fixing portion fixed to the rotating body portion and a cutting edge portion protruding from the fixing portion toward the end surface; and the cutting edge portion has a cutting edge for cutting the end surface at an end portion on a downstream side in a rotation direction of the rotating body portion The cutting edge is configured to be inclined with respect to a direction orthogonal to a side surface portion of the cutting edge portion, and to an imaginary straight line perpendicular to the rotating shaft and passing through an end portion of the cutting edge on the rotating shaft side The downstream side of the rotation direction is inclined.

In the end face cutting apparatus of the above configuration, preferably, the cutting edge portion is disposed along a direction perpendicular to the imaginary straight line, or an end portion on the upstream side of the upstream side in the rotation direction with respect to the vertical direction. The portion is disposed obliquely closer to the side of the rotating shaft.

In the end face cutting method of the present invention, the end surface of the laminated body formed by laminating the sheet is cut, and the end surface cutting apparatus is used to rotate the rotating body portion around the rotating shaft. The cutting portion is rotated while the cutting end is cut by the tip of the cutting portion of the rotating portion.

1‧‧‧ Face cutting machine

11‧‧‧Rotating body

11a‧‧‧ side

12‧‧‧ recess

21‧‧‧cutting department

23‧‧‧ Fixed Department

23a‧‧‧Fixed components

25‧‧‧ cutting edge

25a‧‧‧ side section

25b‧‧‧ Side section

26a‧‧‧ inclined section

26b‧‧‧ inclined section

27‧‧‧Tool tip

27a‧‧‧End

27b‧‧‧End

31‧‧‧Support Department

32‧‧‧ Support shaft

33‧‧‧ Drive Department

35‧‧‧ Keeping Department

35a‧‧‧Part 1

35b‧‧‧Part 2

50‧‧‧Sheet

50a‧‧‧ end face

60‧‧ ‧ laminated body

60a‧‧‧ end face

D1‧‧‧Rotary track

D2‧‧‧Rotary track

D3‧‧‧Rotary track

L‧‧‧ imaginary straight line

L1‧‧‧ imaginary straight line

L2‧‧‧ imaginary straight line

M‧‧‧Rotation direction

N‧‧‧ direction

P‧‧ Direction

R‧‧‧Rotary axis

Θ1‧‧‧ angle

Θ2‧‧‧ angle

Θ3‧‧‧ angle

Fig. 1 is a schematic side view showing an end face cutting apparatus according to an embodiment of the present invention.

Fig. 2 is a schematic plan view showing the vicinity of a rotating body portion and a cutting edge portion of the end face cutting device of Fig. 1 as viewed from the right side of Fig. 1.

Fig. 3 is a schematic front view showing a cutting edge portion of the end face cutting apparatus of Fig. 2;

Fig. 4 is a schematic side view showing a state in which the end faces of the cutting edge portion cutting sheet (sheet) of Fig. 3 are shown on the right side of Fig. 3.

Fig. 5 is a schematic plan view showing a trajectory of a cutting edge portion of the embodiment.

Fig. 6 is a schematic plan view showing a trajectory of a cutting edge portion of the embodiment.

7 is a view showing a cutting edge portion extending along a direction orthogonal to the side surface portion of the cutting edge portion as a cutting edge portion, and the cutting edge portion is disposed on the cutting edge portion of the rotating body portion so as to be inclined toward the downstream side in the rotation direction with respect to the virtual straight line. A schematic top view of the swirling trajectory.

Hereinafter, an end face cutting apparatus according to an embodiment of the present invention will be described with reference to the drawings.

As shown in FIG. 1 and FIG. 2, the end surface cutting apparatus 1 of the present embodiment performs cutting processing on the end surface 60a of the laminated body 60 in which the sheet 50 is laminated (that is, the end surface 50a of the laminated sheet 50). The end surface cutting apparatus 1 is configured to include a rotating body portion 11 having a rotating shaft R and rotating about the rotating shaft R, and a cutting portion 21 fixed to one surface 11a of the rotating body portion 11 and The end surface 60a (end surface 50a) is cut, and the cutting portion 21 has a fixing portion 23 fixed to the rotating body portion 11, and a cutting edge portion 25 protruding from the fixing portion 23 toward the end surface 60a (end surface 50a) The cutting edge portion 25 has a cutting edge 27 that cuts the end surface 60a (end surface 50a) at an end portion on the downstream side in the rotation direction M of the rotating body portion 11; the cutting edge 27 is opposite to the cutting edge portion 25 The side portion 25a is orthogonal to the direction N The imaginary straight line L1 orthogonal to the rotation axis R and passing through the end portion 27a on the rotation axis R side of the blade edge 27 is inclined toward the downstream side in the rotation direction M.

The end surface cutting apparatus 1 further includes a support portion 31 that can rotate the rotating body portion 11, and the supported cutting portion 21 can move integrally with the cutting end surface 60a (end surface 50a); and the driving portion 33 that rotates the rotating body The portion 11 is rotationally driven; and the holding portion 35 sandwiches and holds the laminated body 60 (the laminated sheet 50) from the lowermost side and the uppermost side.

Further, the downstream side of the rotational direction M means the front side (the traveling side) of the rotational direction M, and the upstream side of the rotational direction M means the rear side of the rotational direction M (the side opposite to the traveling direction).

The sheet 50 is not particularly limited, and examples thereof include a polarizing plate. As the polarizing plate, a polarizer is laminated with a protective film via an adhesive.

The shape of the sheet 50 is, for example, a rectangular shape.

The number of the laminated sheets 50 is not particularly limited.

The rotating body portion 11 is rotated to apply a cutting force to the cutting edge 27 of the cutting edge portion 25 of the cutting portion 21.

The shape, material, size, and the like of the rotating body portion 11 are not particularly limited.

For example, the shape of the rotating body portion 11 is a disk shape, and the rotating body portion 11 is formed of a metal material such as stainless steel.

The size of the rotating body portion 11 can be appropriately set depending on the number of laminated sheets 50 and the like.

The rotating body portion 11 is configured to be movable in the direction of the rotation axis R and perpendicular to the rotation axis R in accordance with the movement of the support portion 31.

The rotating body portion 11 is rotatably supported by a support shaft 32 disposed on the support portion 31.

In the aspect shown in FIG. 1 and FIG. 2, the rotating body portion 11 has a concave portion 12 which is formed to be recessed inward from the outer periphery of the rotating body portion 11 so that the cutting portion 21 is just fitted.

The number of the rotating body portions 11 is not particularly limited. One rotating body portion 11 may be provided to one end surface 60a of the laminated body 60 (one end surface 50a of the laminated sheet 50), and two end faces facing each other may be provided at one time. There are two methods for cutting 60a (two end faces 50a).

The rotation speed of the rotating body portion 11 is not particularly limited, and may be, for example, 1000 to 6000 rpm.

The cutting portion 21 is fixed to one surface 11a of the rotating body portion 11, and cuts the end surface 60a (end surface 50a).

In FIGS. 1 and 2 , the number of the cutting portions 21 disposed in the rotating body portion 11 is not particularly limited.

The cutting portion 21 has a fixing portion 23 fixed to the rotating body portion 11 and a cutting edge portion 25 that protrudes from the fixing portion 23 toward the end surface 60a (end surface 50a) from the rotating body portion 11.

The fixing portion 23 is orthogonal to the rotation axis R and extends in a direction P perpendicular to the imaginary straight line L1 passing through the end portion 27a on the rotation axis R side of the blade edge 27. Further, the imaginary straight line L1 is an imaginary straight line which is formed on the one surface 11a of the rotating body portion 11 (parallel to the one surface 11a of the rotating body portion 11) and the end portion 27a on the side of the rotating shaft R of the cutting edge 27 by the rotating shaft R.

The fixing portion 23 is formed in a rectangular shape when viewed in the extending direction of the rotation axis R.

The fixing portion 23 is fixed, for example, by being fitted into the concave portion 12 formed in the rotating body portion 11. In the aspect of FIGS. 1 and 2, the concave portion 12 is fitted in the rotating body portion 11, and is fixed by a fixing member 23a such as a screw.

The arrangement of the fixing portion 23 on the rotating body portion 11 determines the arrangement of the cutting edge portion 25.

The cutting edge portion 25 cuts the end surface 60a of the laminated body 60 (the end surface 50a of the laminated sheet 50).

The cutting edge portion 25 protrudes from the fixing portion 23 toward the side opposite to the rotating body portion 11, and the rotation The end portion on the downstream side in the rotational direction M of the body portion 11 has a blade edge 27.

The cutting edge portion 25 is formed in a rectangular shape when viewed in the extending direction of the rotation axis R, and has a side surface portion 25a on the side of the rotation axis R and a side surface portion 25b on the side away from the rotation axis R.

The blade edge 27 is formed to cut the end surface 60a of the laminated body 60 (the end surface 50a of the laminated sheet 50).

The blade edge 27 is inclined with respect to a direction N orthogonal to the side surface portion 25a of the cutting edge portion 25.

The blade edge 27 is inclined to the downstream side in the rotation direction M with respect to the virtual straight line L1 in a state where the fixing portion 23 is fixed to the rotating body portion 11 (the end portion 27b on the side opposite to the rotation axis R is located on the side of the rotation axis R) The end portion 27a is disposed so as to be inclined further to the downstream side in the rotational direction M.

In the present embodiment, the cutting edge portion 25 and the fixing portion 23 are integrally formed, but may be formed separately from the fixing portion 23.

The angle θ1 formed by the blade edge 27 with respect to the imaginary straight line L1 is not particularly limited, but is preferably more than 0° and not more than 20° (0° < θ1 ≦ 20°).

Further, the angle formed by the cutting edge 27 with respect to the orthogonal direction N (the angle on the virtual plane including the rotational direction M) θ2 is not particularly limited, but is preferably more than 0° and less than 15° (0°< Θ2≦15°).

The material of the cutting edge portion 25 is not particularly limited. Examples of the material include carbon steel (S45C) and the like.

The material of the blade edge 27 is not particularly limited as long as it can cut the end surface 60a (end surface 50a). For example, the blade tip 27 may also have a layer of diamond crystallized on the surface of the carbon steel (S45C) on the outermost surface. The particle diameter of the diamond particles is, for example, 5 to 50 μm.

The shape of the blade edge 27 is not particularly limited. For example, when viewed in the extending direction of the rotation axis R, the blade edge 27 may be linear, and may be curved so as to protrude toward the downstream side in the rotation direction M.

In the case of bending, the radius of curvature is preferably 1% to 50% with respect to the shortest distance between the connecting rotating shaft R and the end portion 27a on the rotating shaft R side of the cutting edge 27.

In the present embodiment, the cutting edge portion 25 has inclined portions 26a and 26b that are inclined from the blade edge 27 toward the end opposite to the blade edge 27 and that are inclined away from the end surface 60a (end surface 50a).

By having the inclined portions 26a and 26b of the cutting edge portion 25, it is possible to further prevent the cutting edge portion 25 from coming into contact with the uncut region of the end surface 60a (end surface 50a).

Among the inclined portions 26a and 26b, the inclination angle of the inclined portion 26a closest to the blade edge 27 (the angle formed by the first forward retracting angle and the imaginary plane including the rotation direction M) θ3 is set, for example, to exceed 0° and 15° or less (0°<θ3≦15°).

The inclination angle of the inclined portion 26b (which is the second forward angle and the angle formed by the virtual plane including the rotation direction M) can be appropriately set.

Further, the inclination angle (knife angle) of the blade edge 27 with respect to the virtual plane including the rotation direction M can be set to exceed 0° and 20° or less (0°<knife angle ≦20°).

Further, in the present invention, the cutting edge portion 25 may not have the inclined portions 26a, 26b.

The arrangement of the cutting portion 21 of the rotating body portion 11 is such that the cutting edge 27 is inclined in the rotation direction downstream side with respect to the virtual straight line L1 in a state where the fixing portion 23 is fixed to the rotating body portion 11, and is not particularly limited.

For example, in the aspect shown in FIG. 2, the cutting edge portion 25 (that is, the cutting portion 21) is disposed on the one surface 11a of the rotating body portion 11 in the direction P perpendicular to the imaginary straight line L1.

In this case, when the rotating body portion 11 is rotated, as shown in FIG. 5, the cutting edge portion 27 of the cutting edge portion 25 passes through the region where the cutting edge 27 passes, that is, on the side of the most rotating shaft R (on the side close to the rotating shaft R). The swirling locus D1 of the end portion 27a is rotated with the end portion 27b of the opposite side of the rotating shaft R (the side away from the rotating shaft R) The end face 60a (end face 50a) is cut in the region between the turns D2.

At this time, the rotational path of the cutting edge portion 25 corresponding to the end portion 27a corresponding to the diagonal portion (that is, the portion on the upstream side in the rotational direction M of the cutting edge portion 25, the portion from the end portion 27a most distant) The swirling locus D2 of the end portion 27b on the side opposite to the rotation axis R of the cutting edge 27 of the D3 is substantially coincident. That is, the swirling locus D3 does not exceed the outer side of the swirling locus D2 of the end portion 27b.

Therefore, contact with the uncut region (the region on the right side of the rotational locus D2 in Fig. 5) is suppressed.

For example, as shown in FIG. 6, the cutting portion 21 may be opposite to the direction P perpendicular to the imaginary straight line L1, and the end portion on the upstream side in the rotational direction M of the cutting edge portion 25 (that is, the cutting portion 21) is lower than the downstream side. The end portion is disposed obliquely closer to the rotation axis R.

In this case, when the rotating body portion 11 rotates, as shown in FIG. 6, the end of the cutting edge portion 25 where the cutting edge 27 passes, that is, the end of the most rotating shaft R side (the side close to the rotating shaft R) The end surface 60a (end surface 50a) is cut in a region between the swirling locus D1 of the portion 27a and the rotational locus D2 of the end portion 27b of the opposite side of the rotation axis R (the side away from the rotation axis R).

At this time, the rotational locus D3 of the cutting edge portion 25 which is a portion corresponding to the diagonal portion with respect to the end portion 27a is smaller than the rotational locus D2 of the end portion 27b of the blade edge 27 opposite to the rotation axis R. . Specifically, the rotational locus D3 of the cutting edge portion 25 which is equivalent to the diagonal portion with respect to the end portion 27a is smaller than the rotational locus D2 of the end portion 27b of the blade edge 27 opposite to the rotation axis R. Further, the swirling locus D1 of the end portion 27a on the side of the rotation axis R of the blade edge 27 is larger. That is, the swirling locus D3 does not exceed the outer side of the swirling locus D2 of the end portion 27b.

Therefore, the contact with the uncut region (the region on the right side of the swirling trajectory D2 in Fig. 6) is suppressed.

On the other hand, as shown in FIG. 7, the blade edge 27 is orthogonal to the side surface portion 25a of the cutting edge portion 25. When the direction N is formed, in order to incline the blade edge 27 toward the downstream side of the rotational direction M with respect to the virtual straight line L1, the entire cutting edge portion 25 (that is, the cutting portion 21) must have the rotational direction M of the cutting edge portion 25. The end portion on the downstream side is inclined so as to be located closer to the rotation axis R than the end portion on the upstream side.

In this case, the rotational locus D3 of the cutting edge portion 25 which is equivalent to the diagonal portion with respect to the end portion 27a is larger than the rotational locus D2 of the end portion 27b of the blade edge 27 opposite to the rotation axis R. . That is, the rotational locus D3 is beyond the outer side of the rotational locus D2 of the end portion 27b.

Therefore, a portion of the cutting edge portion 25 that causes the rotational trajectory D2 beyond the end portion 27b of the blade edge 27 on the side opposite to the rotation axis R is in contact with the uncut region (the right side of the relatively trajectory D2 in Fig. 7). As a result, it is easy to cause defects on the end surface 60a (end surface 50a) due to the end face cutting process.

However, as described above, in the aspects of FIGS. 5 and 6, the radius of the swirling locus D3 is the same as or smaller than the radius of the swirling locus D2. Therefore, the state of FIGS. 5 and 6 can suppress the contact of the cutting edge portion 25 with the uncut region of the end surface 60a (end surface 50a) more than the state of FIG.

The support portion 31 is configured to be movable in a direction parallel to a plane including the rotation direction M of the rotating body portion 11 and a direction perpendicular to the plane. The support unit 31 is moved by, for example, a previously known mobile device.

By configuring the support portion 31 to move in the parallel direction, the entire end can be cut from one end to the other end of the end surface 60a (end surface 50a), and the cutting edge 27 is adjusted to the end surface 60a (end surface 50a) by the vertical movement. ) The depth of cut.

The drive unit 33 rotates the rotator 11 . As the drive unit 33, for example, a motor can be cited.

The holding portion 35 is held by sandwiching the laminated body 60 (the laminated sheet 50) from the lowermost side and the uppermost side. The holding portion 35 has contact with the uppermost surface of the laminated body 60 (the laminated sheet 50) The first portion 35a and the second portion 35b that is in contact with the lowermost surface are sandwiched between the first and second portions 35a and 35b, thereby holding the laminated body 60 (the laminated sheet 50). The holding portion 35 is rotated about the virtual straight line L2 connecting the center of the lowermost surface of the laminated body 60 (the laminated sheet 50) and the center of the uppermost surface (see FIG. 1), whereby the laminated body 60 can be changed. The end face 60a (end face 50a) of the laminated sheet 50).

Next, the operation of the face cutting apparatus 1 of the present embodiment will be described.

When the support portion 31 is moved, the rotating body portion 11 is rotated by the driving portion 33, and the laminated body 60 (the laminated sheet 50) faces the end surface 60a of the rotating body portion 11 (the laminated sheet) The end face 50a) of 50 is cut from the one end to the other end by the cutting edge 27 of the cutting edge portion 25 of the cutting portion 21.

As described above, the end surface cutting apparatus 1 of the present embodiment is an end surface cutting apparatus 1 that cuts the end surface 60a of the laminated body 60 formed by the sheet 50 (the end surface 50a of the laminated sheet 50). Further, the rotating body portion 11 includes a rotation axis R that rotates around the rotation axis R, and a cutting portion 21 that is fixed to one surface 11a of the rotating body portion 11 and that cuts the end surface 60a (end surface 50a) The cutting portion 21 includes a fixing portion 23 fixed to the rotating body portion 11 and a cutting edge portion 25 projecting from the fixing portion 23 toward the end surface 60a (end surface 50a); the cutting edge portion 25 is on the rotating body An end portion on the downstream side in the rotational direction M of the portion 11 has a blade edge 27 for cutting the end surface 60a (end surface 50a); the blade edge 27 is formed to be orthogonal to the side surface portion 25a of the cutting edge portion 25. The N is inclined, and is inclined with respect to the downstream side of the rotation direction M with respect to the virtual straight line L1 orthogonal to the rotation axis R and passing through the end portion 27a of the blade edge 27 on the rotation axis R side.

According to the end surface cutting apparatus 1 of the present embodiment, when the cutting edge 27 is inclined toward the downstream side in the rotational direction M with respect to the virtual straight line L1, the end surface is extended along the virtual straight line L1, and the end surface cutting process is further performed. It is possible to suppress cracking or peeling of the sheet 50.

Here, as described above, as shown in FIG. 7, when the cutting edge portion 25 formed by forming the cutting edge 27 in the direction N orthogonal to the side surface portion 25a of the cutting edge portion 25 is used, in order to make the cutting edge 27 is inclined with respect to the downstream side of the imaginary straight line L1 in the rotational direction M, and it is necessary to incline the entire cutting portion 21. However, in this case, when the cutting edge portion 25 is rotated with the rotation of the rotating body portion 11, the end portion 27a of the cutting edge portion 25 with respect to the rotating shaft R side is equivalent to a diagonal portion (cutting The radius of the swirling locus D3 drawn in the portion on the upstream side in the rotational direction M of the blade portion 25 and the portion farthest from the end portion 27a on the side of the rotation axis R is smaller than the end of the blade edge 27 opposite to the rotation axis R. The radius of the swirling trajectory D2 depicted by the portion 27b is larger. Therefore, the portion on the upstream side of the cutting edge portion 25 beyond the outer edge of the cutting edge portion 2 of the blade edge 27 contacts the uncut region of the end surface 60a of the laminated body 60 (the end surface 50a of the laminated sheet 50). Contact, as a result, has the drawback of causing defects in the end face cutting process.

On the other hand, in the present embodiment, the blade edge 27 is inclined with respect to the direction N orthogonal to the side surface portion 25a of the cutting edge portion 25, and is inclined with respect to the downstream side of the rotation direction M with respect to the virtual straight line L1, even if The entire cutting portion 21 is not inclined, and even when inclined at a relatively small angle, the cutting edge 27 can be largely inclined toward the downstream side in the rotational direction M. Thereby, the cutting edge portion 25 is prevented from coming into contact with the uncut region. Further, in this manner, since it is not necessary to provide the inclined portions 26a and 26b in the cutting edge portion 25 or to make the inclination angle θ3 relatively small even when the inclined portions 26a and 26b are provided, the strength of the cutting edge portion 25 is relatively relatively high. Big.

Therefore, cracking or peeling can be suppressed, and the strength of the cutting portion 21 can be relatively high, and the end surface cutting processing can be sufficiently performed.

In the end surface cutting apparatus 1 of the present embodiment, it is preferable that the cutting edge portion 25 is formed along a direction P perpendicular to the virtual straight line L1 or an end portion on the upstream side of the rotational direction M with respect to the vertical direction P. It is disposed obliquely so that the end portion on the downstream side is closer to the side of the rotation axis R.

According to this configuration, the end portion 27a of the cutting edge portion 25 on the side of the rotation axis R can be made smaller in a portion corresponding to the diagonal portion D3, so that the cutting edge portion 25 and the laminated body 60 can be more suppressed. The uncut region of the end face 60a (the end face 50a of the laminated sheet 50) is in contact. Therefore, the end surface processing can be performed more fully.

The end face cutting method of the present embodiment is an end face cutting method for cutting the end surface 60a of the laminated body 60 laminated with the sheet 50 (the end surface 50a of the laminated sheet 50); By using the end face cutting apparatus 1 described above, the rotating body portion 11 is rotated about the rotating shaft R to rotate the cutting portion 21, and the cutting edge 27 of the cutting portion 21 is rotated. A method of cutting the end surface 60a (end surface 50a).

According to this configuration, by performing the end surface cutting processing using the end surface cutting apparatus 1, the crack or peeling can be suppressed as described above, and the strength of the cutting portion 21 can be relatively high, and the end surface cutting processing can be sufficiently performed.

As described above, according to the present embodiment, an end face cutting apparatus 1 and an end face cutting method capable of suppressing cracking or peeling, and having a relatively high strength of the cutting portion 21 and capable of sufficiently performing end surface cutting processing are provided.

Although the embodiments and examples of the present invention have been described above, the features of the respective embodiments and examples are appropriately combined and are predetermined from the beginning. It is to be understood that the embodiments and embodiments of the invention are intended to be illustrative and not restrictive. The scope of the invention is not The above-described embodiments and examples are intended to cover all modifications within the scope and scope of the patent application.

[Cross-reference to related cases]

The present application claims priority to Japanese Patent Application No. 2016-249765, filed on Dec. 22, 2011, the content of

Claims (5)

An end face cutting apparatus for cutting an end surface of a laminated body formed by laminating a sheet, comprising: a rotating body portion having a rotating shaft and rotating about the rotating shaft; and a cutting portion Fixing the end surface of the rotating body portion, the cutting portion has a fixing portion fixed to the rotating body portion, and a cutting edge portion protruding from the fixing portion toward the end surface; the cutting edge portion is An end portion on the downstream side in the rotation direction of the rotating body portion has a cutting edge that cuts the end surface; the cutting edge is inclined with respect to a direction orthogonal to a side surface portion of the cutting edge portion, and is orthogonal to the rotating shaft And an imaginary straight line of the end portion of the cutting edge on the side of the rotating shaft, wherein an end portion of the cutting edge opposite to the rotating shaft is inclined closer to a downstream side of the rotating direction than an end portion of the rotating shaft side; The side surface portion of the cutting edge portion extends in a direction perpendicular to the imaginary straight line when viewed in the axial direction of the rotating shaft. The end face cutting apparatus according to claim 1, wherein the cutting edge portion is disposed in a direction perpendicular to the imaginary straight line, or is closer to an end portion on the upstream side in the rotation direction than the end portion on the downstream side with respect to the vertical direction. The above-described rotation axis side is arranged obliquely. The end face cutting apparatus according to claim 1 or 2, wherein the tip end faces the end surface in a direction in which the rotating shaft extends. An end face cutting method for cutting an end surface of a laminated body formed by laminating a sheet, and using the end face cutting device according to claim 1 or 2, wherein the rotating body portion has the rotating shaft The end surface is rotated, and the cutting portion is rotated while the end surface of the cutting portion is rotated by the screwing. An end face cutting method for cutting an end surface of a laminated body formed by laminating a sheet, and using the end face cutting apparatus of claim 3, wherein the rotating body portion is centered on the rotating shaft The rotation of the cutting portion is performed while the cutting portion is rotated, and the end surface is cut by the cutting edge of the cutting portion.