JP7123393B2 - slitter device - Google Patents

Description

The present invention relates to a slitter device for longitudinally cutting (into multiple strips) a band-shaped member to be cut using upper and lower round blades. The present invention relates to a slitter device having a structure in which a pressure contact dimension can be set safely and easily.

The slitter device will be described below with reference to FIGS. 13 to 16. FIG. 13 is a diagram showing an outline of the slitter, FIG. 14 is a detailed diagram of part A in FIG. 13, FIG. 15 is a diagram for explaining a conventional holder unit used in the slitter, and FIG. FIG. 10 is a diagram for explaining an example of a problem of a conventional holder unit that is used. In the slitter device 100, as shown in FIG. 13, a holder unit 1 is provided with a blade holder 3, an upper blade (round blade) 2, and a disc spring (biasing means) 5. The upper blade (round blade) 2 attached to the rotating shaft (rotating shaft) 101 and the lower blade 103 attached to the second rotating shaft 102 are overlapped by a predetermined overlap amount Y as shown in FIG. There is one in which the blade (round blade) 2 is moved in the axial direction of the first rotating shaft (rotating shaft) 101 so that the blade edge of the upper blade (round blade) 2 and the blade edge of the lower blade 103 are brought into pressure contact. Then, the band-like member to be cut that has been sent between the first rotating shaft 101 and the second rotating shaft 102 is cut into multiple strips along the length direction. In this case, a holder unit 1 in which an upper blade (round blade) 2 and a disc spring (biasing means) 5 are incorporated in a blade holder 3 is assembled in advance by itself, and the holder unit 1 is attached to the first rotating shaft (rotating shaft). ) 101, and the holder unit 1 is moved according to the cutting width.

In such a slitter device, after the holder unit 1 is moved according to the cutting width, the material, thickness, etc. of the member to be cut are adjusted so that the member to be cut is optimally cut while maintaining the quality of the cut surface. Appropriate pressure contact positions (pressure contact dimensions) of the upper and lower cutting edges must be set according to the

The applicant of the present invention has previously proposed a new technique for adjusting the pressure contact position (pressure contact dimension) of the cutting edge in Patent Document 1. As shown in FIG. 15, the cutter holder 3 is rotatable in the circumferential direction of the rotary shaft and has a rotating portion (end face cam) 60 having a concave portion 18 or a convex portion 19 in the axial direction. ) 2 in the axial direction, and the recess 18 or the projection 19 is in contact with the pressing portion (press pin) 130 . By rotating the rotating portion 60, the thickness of the concave portion 18 or the convex portion 19 changes in the axial direction at the position in contact with the pressing portion (pressing pin) 130, and the upper blade ( The circular blade) 2 is moved in the axial direction.

As a result, in the holder unit 1 alone, it becomes possible to preset the appropriate pressure contact positions (pressure contact dimensions) of the upper and lower cutting edges, and the holder unit 1 can be moved to the first rotating shaft (rotating shaft) 101 of the slitter device 100 . 15(b), the blade edge of the upper blade (round blade) 2 is lightly brought into contact with the blade edge of the lower blade 103 in a pressed state, and the holder unit 1 is moved to the first rotation shaft (rotation shaft) 101. , the rotating part (end face cam) 60 is rotated to bring the concave part 18 into a non-pressing state in which the pressing part 130 is in contact with the pressing part 130 as shown in FIG. can be obtained.

Japanese Patent No. 5978103

However, the blade holder 3 requires space in the axial direction for mounting the pressing portion (pressing pin) 130 and the rotating portion (end face cam) 60, and this may not be possible when the cutting width is narrow. Further, when there is one pressing portion (pressing pin) 130 , the entire upper blade (round blade) 2 is not moved in the axial direction by the pressing portion (pressing pin) 130 , and the pressing portion (pressing pin) 130 does not move as a whole. Since the holder unit 1 is attached to the first rotating shaft (rotating shaft) 101 of the slitter device 100, the pressing portion (pressing pin) 130 is moved to the maximum height in the axial direction. If the upper blade (round blade) 2 is shifted from the position where it is pressed against the lower blade 103 directly below, the pressure contact position (pressure contact dimension) will be different. Therefore, it is necessary to reliably move the pressing portion (pressing pin) 130 directly below the upper blade (round blade) 2, and this work is troublesome. This is even more so when the gap between adjacent holder units 1 is narrow. In addition, since the cutting edge 2a of the upper blade (circular blade) 2 of the adjacent holder unit 1 is near the holder unit in which the work is performed, there is danger.

If a plurality of (approximately three) pressing portions (pressing pins) 130 are provided evenly in the circumferential direction, the entire upper blade (round blade) 2 can be moved in the axial direction by the pressing portions (pressing pins) 130. Even if the pressing portion (pressing pin) 130 is positioned at any position other than directly below the upper blade (round blade) 2, the pressing position (pressing dimension) is the same. There is no need to move the blade (round blade) 2 directly below. However, the number of parts of the pressing portion (pressing pin) 130 increases, and the number of holes into which the pressing portion (pressing pin) 130 of the blade holder 3 is inserted and the number of concave portions 18 or convex portions 19 of the rotating portion (end cam) 60 also need to be increased in accordance with the number of pressing pins 130, which complicates the shapes of the blade holder 3 and the rotating portion (end face cam) 60, increases the number of processing steps, and takes time.

In the case described above, in order to move the upper blade (round blade) 2 in the axial direction and set an appropriate pressure contact position (pressure contact dimension) of the upper and lower cutting edges, a pressing portion (pressing pressure The pin 130 is arranged on the side of the upper blade (round blade) 2 on the cutting edge 2a side to press, and the upper blade (round blade) 2 is sandwiched on the opposite side of the pressing portion (pressing pin) 130. It is premised that the upper blade (round blade) 2 is biased toward the pressing portion (pressing pin) 130 side by the disk spring (biasing means) 5 by disposing the biasing means) 5. In some cases, it is desired to set an appropriate pressure contact position (pressure contact dimension) of the upper and lower cutting edges without moving the upper blade (round blade) 2 in the axial direction. For this purpose, as shown in FIG. 16(a), a pressing portion (pressing pin) 130 is arranged on the opposite side of the cutting edge 2a of the upper blade (round blade) 2, and the disc spring (biasing means) 5 is placed on the upper blade. It is arranged between the (round blade) 2 and the pressing portion (pressing pin) 130 . That is, the pressing portion (pressing pin) 130 presses the upper blade (round blade) 2 via the disc spring (biasing means) 5, and the upper blade (round blade) 2 does not move in the axial direction. A disc spring (biasing means) 5 is elastically deformed to bias the upper blade (round blade) 2 . However, in this case, when the disc spring (biasing means) 5 is directly pressed by the pressing portion (pressing pin) 130, only the portion of the disc spring (biasing means) 5 hit by the pressing pin 130 and the vicinity thereof are dented. Therefore, as shown in FIG. 16B, for example, a rigid cylindrical push plate 20 or the like is placed between the disk spring (biasing means) 5 and the push pin 130. need to be added, resulting in an increase in unnecessary parts. Moreover, when the gap between the adjacent holder units 1 is narrow, there may be a case where the space for mounting the push plate 20 cannot be obtained.
As described above, the slitter device disclosed in Patent Document 1 still has room for improvement.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems. An object of the present invention is to provide a slitter device capable of safely and easily adjusting the press contact position (press contact dimension) of the upper and lower cutting edges.

The slitter device of the present invention includes a round blade, a blade holder attached to a rotary shaft and fitted with the round blade, a retaining ring holding the round blade to the blade holder, and the round blade fitted to the blade holder. elastically deformable biasing means for circumferentially contacting the side surface of the round blade from the opposite side of the retaining ring with the blade therebetween and biasing the round blade in the axial direction of the rotating shaft. a device,
A convex portion is formed on one of the outer peripheral surface of the cutter holder to which the inner peripheral surface of the retaining ring is fitted and the inner peripheral surface of the retaining ring, and the convex portion is formed on the other surface. projects and the projection is relatively movable, and the one surface on which the projection is formed is the inner peripheral surface of the retaining ring, the projection extends from the outer periphery of the retaining ring. A set screw or a ball plunger that is screwed into a female threaded hole that penetrates from the surface to the inner peripheral surface, and the one surface on which the protrusion is formed is the outer peripheral surface of the blade holder The convex portion is a male screw having a head or a bolt having a head which is screwed through the receiving portion of the retaining ring into a female threaded hole formed in the outer peripheral surface of the blade holder, and rotates the retaining ring. By changing the position of the projection and the receiving portion in the circumferential direction and the axial direction, the urging means is elastically deformed according to the change to change the urging force, and the retaining ring and The slitter device is configured such that the circular blade is moved or locked in the axial direction.

According to this configuration, when the convex portion is formed on the inner peripheral surface of the retaining ring and the receiving portion is formed on the outer peripheral surface of the cutter holder, the retaining ring is rotated so that the convex portion of the retaining ring is moved to the receiving portion of the cutter holder. , the retaining ring moves according to the position to which the projection is moved, elastically deforms the biasing means to change the biasing force, and presses the round blade with the side surface of the retaining ring in the axial direction. can be moved or locked to In addition, when a protrusion is formed on the outer peripheral surface of the blade holder and a receiving portion is formed on the inner peripheral surface of the retaining ring, by rotating the retaining ring, the receiving portion of the retaining ring is aligned with the protrusion of the blade holder. and the retaining ring moves according to the position to which the receiving part is moved, elastically deforming the biasing means to change the biasing force, and pushing the round blade with the side surface of the retaining ring to move in the axial direction or can be locked. In the case of a push screw or ball plunger having a convex portion screwed into a female threaded hole formed in a retaining ring, the push screw or ball plunger is moved along the receiving portion by rotating the retaining ring. By tightening the set screw or ball plunger at any position on the receiving part, the retaining ring can be engaged with the blade holder to hold it in the blade holder. In the case of a screwed-in headed male screw or headed bolt, the receptacle is moved along the headed male screw or headed bolt by rotating the retaining ring, By tightening a male screw having a head or a bolt having a head at an arbitrary position of the receiving portion, the holding ring can be engaged with the blade holder and held by the blade holder. As a result, even when the cutting width is narrow, when assembling the slitter device or when changing the cutting width of the member to be cut, the pressure contact position (pressure contact dimension) of the upper and lower cutting edges can be safely and easily achieved with a simple structure. can be adjusted. In addition, the cylindrical retaining ring is in circumferential contact with the round blade, and the urging means is fitted in the blade holder and circumferentially abuts on the side surface of the round blade from the opposite side of the retaining ring across the round blade. Since the round blade is urged in the axial direction of the rotating shaft, the urging means does not become partially depressed, and an appropriate spring pressure can be obtained. ), the press contact position (press contact dimension) can be stably adjusted regardless of the position of the retaining ring in the circumferential direction.

The slitter device of the present invention includes a round blade, a blade holder attached to a rotary shaft and fitted with the round blade, a retaining ring holding the round blade to the blade holder, and the round blade fitted to the blade holder. elastically deformable biasing means for circumferentially contacting the side surface of the round blade from the holding ring side across the blade and biasing the round blade in the axial direction of the rotary shaft; A convex portion is formed on one of the outer peripheral surface of the cutter holder to which the inner peripheral surface of the retaining ring is fitted and the inner peripheral surface of the retaining ring, and the convex portion is formed on the other surface. When a receiving portion is formed in which a portion protrudes and the convex portion is relatively movable, and the one surface on which the convex portion is formed is the inner peripheral surface of the retaining ring, the convex portion is the retaining ring. a set screw or a ball plunger screwed into a female threaded hole formed penetrating from the outer peripheral surface to the inner peripheral surface of the blade holder, and the one surface on which the convex portion is formed is the outer peripheral surface of the blade holder In this case, the convex portion is a male screw having a head screwed into a female threaded hole formed in the outer peripheral surface of the blade holder through the receiving portion of the retaining ring or a bolt having a head; to change the positions of the convex portion and the receiving portion in the circumferential direction and the axial direction, and according to the change, without moving the round blade in the axial direction, the biasing means is operated The slitter device is adapted to be elastically deformed to change the urging force.

According to this configuration, the retaining ring can be brought into direct contact with the biasing means to obtain an appropriate biasing force, the convex portion is formed on the inner peripheral surface of the retaining ring, and the receiving portion is formed on the outer peripheral surface of the blade holder. In this case, by rotating the retaining ring, the convex portion of the retaining ring is moved along the receiving portion of the blade holder, and the retaining ring moves according to the position to which the convex portion is moved, thereby moving the round blade. The biasing force can be changed by elastically deforming the biasing means. In addition, when a convex portion is formed on the outer peripheral surface of the blade holder and a receiving portion is formed on the inner peripheral surface of the retaining ring, the receiving portion of the retaining ring is moved along the convex portion of the blade holder by rotating the retaining ring. By moving, the holding ring moves according to the position to which the receiving part is moved, and the urging means can be elastically deformed without moving the round blade to change the urging force. In the case of a push screw or ball plunger having a convex portion screwed into a female threaded hole formed in a retaining ring, the push screw or ball plunger is moved along the receiving portion by rotating the retaining ring. By tightening the set screw or ball plunger at any position on the receiving part, the retaining ring can be engaged with the blade holder to hold it in the blade holder. In the case of a screwed-in headed male screw or headed bolt, the receptacle is moved along the headed male screw or headed bolt by rotating the retaining ring, By tightening a male screw having a head or a bolt having a head at an arbitrary position of the receiving portion, the holding ring can be engaged with the blade holder and held by the blade holder. As a result, even when the cutting width is narrow, when assembling the slitter device or when changing the cutting width of the member to be cut, the pressure contact position (pressure contact dimension) of the upper and lower cutting edges can be safely and easily achieved with a simple structure. can be adjusted. In addition, the cylindrical retaining ring is circumferentially abutted against the urging means, and the urging means is fitted in the blade holder and circumferentially abuts the side surface of the round blade from the retaining ring side while sandwiching the round blade. Since the round blade is urged in the axial direction of the rotating shaft, the urging means does not become partially depressed, and an appropriate spring pressure can be obtained. , the press contact position (press contact dimension) can be stably adjusted regardless of the position of the retaining ring in the circumferential direction.

In the slitter device of the present invention, when the one surface on which the convex portion is formed is the inner peripheral surface of the retaining ring, the receiving portion formed on the outer peripheral surface of the blade holder is inclined with respect to the circumferential direction. In the case where the one surface on which the convex portion is formed is the outer peripheral surface of the cutter holder, the holding ring The receiving portion formed on the inner peripheral surface of the retaining ring is formed by an oblique elongated through-hole that is inclined with respect to the circumferential direction and penetrates the outer peripheral surface of the retaining ring.

According to this configuration, when the receiving portion is formed on the outer peripheral surface of the blade holder, the receiving portion is formed in the circumferential direction of the outer peripheral surface of the blade holder (the cross section of the blade holder represented by a cross section perpendicular to the axial direction of the rotating shaft). It is an oblique long groove that is inclined with respect to the outer circumferential direction) and extends to a depth that is concentric or approximately concentric with the outer circumferential surface of the tool holder, and is formed on the inner circumferential surface of the retaining ring by rotating the retaining ring. By moving the projection along the oblique groove, the retaining ring can be moved axially according to the inclination angle of the oblique groove. In addition, when the receiving portion is formed on the inner peripheral surface of the retaining ring, the receiving portion is formed in the circumferential direction of the inner peripheral surface of the retaining ring (circumference of the inner periphery of the retaining ring represented by a cross section perpendicular to the axial direction). direction) and passes through the outer peripheral surface of the retaining ring. The retaining ring can be moved in the axial direction of the rotating shaft according to the inclination angle of the oblique through slot.

In the slitter device of the present invention, when the one surface on which the convex portion is formed is the inner peripheral surface of the retaining ring, the receiving portion formed on the outer peripheral surface of the blade holder is inclined with respect to the circumferential direction. and a long oblique groove that extends to a depth that is concentric or substantially concentric with the outer peripheral surface of the cutter holder, and a long oblique groove that is parallel to the circumferential direction and extends to a depth that is concentric or substantially concentric with the outer peripheral surface of the cutter holder. When the one surface on which the convex portion is formed is the outer peripheral surface of the blade holder, the receiving portion formed on the inner peripheral surface of the retaining ring is formed on the outer peripheral surface of the retaining ring. A slant elongated through hole that is inclined with respect to a direction and penetrates the outer peripheral surface of the retaining ring and a parallel elongated through hole that is parallel to the circumferential direction and penetrates the outer peripheral surface of the retaining ring are formed in communication. ing.

According to this configuration, when the receiving portion is formed on the outer peripheral surface of the blade holder, the receiving portion is inclined with respect to the circumferential direction of the outer peripheral surface of the blade holder and is concentric or substantially concentric with the outer peripheral surface of the blade holder. and a parallel long groove parallel to the circumferential direction of the outer peripheral surface of the blade holder and extending to a depth that is concentric or substantially concentric with the outer peripheral surface of the blade holder. By rotating the retaining ring, the protrusions formed on the inner peripheral surface of the retaining ring are moved along the oblique long groove of the blade holder, and the retaining ring is moved to the rotation axis according to the inclination angle of the oblique long groove. After moving in the axial direction, the retaining ring can be engaged with and retained by the cutter holder by moving the protrusions into the parallel long grooves. Further, when the receiving portion is formed on the inner peripheral surface of the retaining ring, the receiving portion is inclined with respect to the circumferential direction of the inner peripheral surface of the retaining ring and passes through the outer peripheral surface of the retaining ring. Parallel elongated through-holes are formed in parallel with the circumferential direction of the inner peripheral surface of the ring and penetrate through the outer peripheral surface of the retaining ring. is moved along the projection of the blade holder, and after moving the retaining ring in the axial direction of the rotation shaft according to the inclination angle of the oblique through-hole, the projection is held by moving the parallel through-hole The ring can be held by locking onto the blade holder.

In the slitter device of the present invention, when the one surface on which the convex portion is formed is the inner peripheral surface of the retaining ring, the receiving portion formed on the outer peripheral surface of the blade holder is inclined with respect to the circumferential direction. and a long oblique groove that extends to a depth that is concentric or substantially concentric with the outer peripheral surface of the cutter holder, and a long oblique groove that is parallel to the circumferential direction and extends to a depth that is concentric or substantially concentric with the outer peripheral surface of the cutter holder. A plurality of parallel long grooves are alternately formed in communication with each other, and when the one surface on which the convex portion is formed is the outer peripheral surface of the blade holder, the receiving portion formed on the inner peripheral surface of the retaining ring is inclined with respect to the circumferential direction and penetrates through the outer peripheral surface of the retaining ring, and parallel elongated through holes that are parallel to the circumferential direction and penetrate through the outer peripheral surface of the retaining ring communicate with each other. are formed alternately.

According to this configuration, when the receiving portion is formed on the outer peripheral surface of the blade holder, the receiving portion is inclined with respect to the circumferential direction of the outer peripheral surface of the blade holder and is concentric or substantially concentric with the outer peripheral surface of the blade holder. The oblique long groove extending at the upper depth communicates with the parallel long groove extending parallel to the circumferential direction of the outer peripheral surface of the cutter holder and extending at a depth concentric or substantially concentric with the outer peripheral surface of the cutter holder. A plurality of retaining rings are formed alternately, and by rotating the retaining ring, the projections formed on the inner peripheral surface of the retaining ring are moved along the plurality of oblique long grooves of the blade holder, and the retaining rings are moved along the oblique grooves of the oblique long grooves. After moving the retaining ring in the axial direction of the rotating shaft according to the angle, the retaining ring can be retained and retained by the cutter holder at different positions by moving the convex portion to one of the plurality of parallel long grooves. Different bias states can be set. Further, when the receiving portion is formed on the inner peripheral surface of the retaining ring, the receiving portion is inclined with respect to the circumferential direction of the inner peripheral surface of the retaining ring and penetrates the outer peripheral surface of the retaining ring. parallel to the circumferential direction of the inner peripheral surface of the retaining ring and penetrating the outer peripheral surface of the retaining ring are alternately formed so as to communicate with each other. After moving the oblique elongated hole along the protrusion of the blade holder and moving the retaining ring in the axial direction of the rotating shaft according to the inclination angle of the oblique elongated through hole, different parallel through elongated holes are formed in the protrusion. By moving the holding ring, the holding ring can be engaged with and held by the blade holder at different positions, so that different biasing states can be set.

The slitter device of the present invention comprises a handle for rotating the retaining ring in the circumferential direction of the rotating shaft.

According to this configuration, the operator can easily rotate the retaining ring in the circumferential direction of the rotation shaft by applying a rotational force to the retaining ring using the handle.

In the slitter device of the present invention, the biasing means is a disc spring.

According to this configuration, the disc spring (biasing means) is elastically deformed in the axial direction and circumferentially contacts the side surface of the round blade to bias the round blade in the axial direction of the rotating shaft. The spring (biasing means) does not partially collapse and can obtain an appropriate spring pressure. The press contact position (press contact dimension) can be stably adjusted at any position.

According to the present invention, by rotating the retaining ring, the position of the projection formed on either one of the outer peripheral surface of the cutting tool holder and the inner peripheral surface of the retaining ring and the receiving portion formed on the other surface can be changed. Since the retaining ring and the round blade are moved or locked in the axial direction according to the change in the position of the convex portion and the receiving portion, the blade holder can reduce the space in the axial direction and the cutting width is narrower. Even if the cutting width is narrower, when assembling the slitter device or when changing the cutting width of the material to be cut, the upper and lower cutting edges can be safely and easily with a simpler structure. can be adjusted.

FIG. 3 is an exploded perspective view showing an example of a holder unit used in the slitter device of the first embodiment of the present invention; 3A and 3B are diagrams for explaining three shapes of a receiving portion 8 of the blade holder 3 shown in FIG. 1; FIG. It is a figure for demonstrating the operation|movement at the time of using the blade holder 3 shown to Fig.2 (a). It is a figure for demonstrating the operation|movement at the time of using the blade holder 3 shown in FIG.2(b). It is a figure for demonstrating the operation|movement at the time of using the blade holder 3 shown in FIG.2(c). FIG. 7 is an exploded perspective view showing an example of a holder unit used in a slitter device according to a second embodiment of the present invention; 7A and 7B are diagrams for explaining three shapes of a receiving portion 13 of the retaining ring 4 shown in FIG. 6; FIG. It is a figure for demonstrating the operation|movement at the time of using the retaining ring 4 shown to Fig.7 (a). It is a figure for demonstrating the operation|movement at the time of using the holding ring 4 shown in FIG.7(b). It is a figure for demonstrating the operation|movement at the time of using the holding ring 4 shown in FIG.7(c). It is the figure which showed the operation|movement of an example of the holder unit used for the slitter apparatus of the 3rd Embodiment of this invention. It is the figure which showed the operation|movement of an example of the holder unit used for the slitter apparatus of the 4th Embodiment of this invention. It is the figure which showed the outline|summary of a slitter apparatus. 14 is an enlarged cross-sectional view of a portion A of FIG. 13; FIG. It is a figure for demonstrating the prior art of the holder unit used for a slitter apparatus. It is a figure for demonstrating one example of the problem of the prior art of the holder unit used for a slitter apparatus.

(First embodiment)
1 to 5, 13 and 14, a slitter apparatus according to an embodiment of the present invention will be described below. FIG. 1 is an exploded perspective view showing an example of a holder unit 1 used in a slitter device according to an embodiment of the present invention, and FIGS. 3 is a diagram for explaining the operation when using the blade holder 3 shown in FIG. FIG. 5 is a diagram for explaining the operation when the blade holder 3 shown in FIG. 2(c) is used. The holder unit 1 is pre-assembled as a single unit and attached to the first rotating shaft (rotating shaft) 101 of the slitter device 100 shown in FIG. The upper blade (round blade) 2 and the lower blade 103 attached to the second rotary shaft 102 are overlapped by an overlap amount Y as shown in FIG. By pressing the upper and lower cutting edges and rotating the first rotating shaft (rotating shaft) 101 and the second rotating shaft 102, the band-shaped member to be cut is cut along the circumferential direction (into multiple streaks). A plurality of holder units 1 are attached to the first rotating shaft (rotating shaft) 101 .

As shown in FIG. 1, the holder unit 1 includes an upper blade (round blade) 2, a blade holder 3, a retaining ring 4, and a disc spring (biasing means) 5. As shown in FIG. The blade holder 3 is screwed into the flange portion 6, the small diameter step portion 7, the receiving portion 8 formed on the outer peripheral surface of the small diameter step portion 7, the through female screw hole 9 formed in the flange portion 6, and the through female screw hole 9. A set screw 10 for fixing the holder unit 1 to the first rotating shaft (rotating shaft) 101 is provided. The retaining ring 4 includes a through female screw hole 11 , a ball plunger (convex portion) 12 screwed into the through female screw hole 11 , and a jig (handle) 16 for rotating the holding ring. Although the convex portion 12 is a ball plunger, it may be a set screw.

The small-diameter stepped portion 7 of the blade holder 3 has an outer diameter smaller than that of the flange portion 6, and matches the inner diameters of the disk spring (biasing means) 5, the upper blade (round blade) 2, and the retaining ring 4. A spring (biasing means) 5, an upper blade (round blade) 2, and a retaining ring 4 are inserted into the small-diameter step portion 7 in this order. The cutting edge of the upper blade (round blade) 2 is on the holding ring 4 side opposite to the side on which the disc spring (biasing means) 5 is mounted. The small diameter portion (bottom) of the disc spring (biasing means) 5 abuts the side surface of the flange portion 6 of the blade holder 3, and the large diameter portion of the disc abuts the upper blade (round blade) 2 in a circumferential shape. .

As shown in FIG. 2, there are three types of receiving portions 8 formed on the outer peripheral surface of the small-diameter stepped portion 7 of the blade holder 3 as follows. (a) an oblique long groove 8a that is inclined with respect to the circumferential direction and extends to a depth that is concentric or substantially concentric with the outer peripheral surface of the blade holder 3; An oblique long groove 8a extending to a depth concentric or substantially concentric with the surface and a parallel long groove 8b extending parallel to the circumferential direction and extending to a depth concentric or substantially concentric with the outer peripheral surface of the blade holder 3. (c) is parallel to the circumferential direction with the oblique long groove 8a(n) which is inclined with respect to the circumferential direction and extends to a depth concentrically or substantially concentrically with the outer peripheral surface of the blade holder 3; A plurality of parallel long grooves 8b(n) extending to a depth concentrically or substantially concentrically with the outer peripheral surface of the blade holder 3 are alternately formed (n represents a plurality of 2 or more). Here, the circumferential direction in this case means the circumferential direction of the outer periphery of the small-diameter stepped portion 7 represented by a cross section perpendicular to the axial direction. In any of the above three cases, as shown in FIG. 2, the final end of the receiving portion 8 does not pass through the side surface of the blade holder 3 and is a blind end. A ball plunger (convex portion) 12 that is screwed into the through female screw hole 11 of the retaining ring 4 protrudes into the receiving portion 8 so as to be movable. As a result, the retaining ring 4 is held movably in the axial direction of the first rotating shaft (rotating shaft) 101 without being removed from the blade holder 3, and the upper blade (round blade) 2 and disc spring (biasing means) 5 It is held in the blade holder 3 by a holding ring 4 .

The retaining ring 4 is rotatable in the circumferential direction of the first rotating shaft (rotating shaft) 101 , and by rotating the retaining ring 4 , the ball plunger (convex portion) 12 moves in the circumferential direction and the receiving portion 8 . By changing the position in the axial direction, the disk spring (biasing means) 5 is elastically deformed according to the change to change the biasing force, and the retaining ring 4 and the round blade 2 are moved to the first rotating shaft (rotating shaft). It is made to move or lock in the axial direction of 101 .

The jig (handle) 16 for rotating the retaining ring rotates the retaining ring 6 in the circumferential direction of the first rotating shaft (rotating shaft) 101 when the operator applies a rotating force.

As described above, the holder unit 1 is assembled as a single unit. A plurality of assembled holder units 1 are attached to the first rotating shaft (rotating shaft) 101 . After the position of the holder unit 1 is determined, the set screw 10 is tightened to fix the holder unit 1 to the first rotating shaft (rotating shaft) 101 .

In FIG. 3, as shown in FIG. 2(a), the receiving portion 8 formed on the small-diameter stepped portion 7 of the blade holder 3 is inclined with respect to the circumferential direction and is concentric or approximately concentric with the outer peripheral surface of the blade holder 3. FIG. 3 is a side view with a partial cross-section of the holder unit 1 in the case of oblique long grooves 8a extending at the upper depth; In FIG. 4, as shown in FIG. 2(b), the receiving portion 8 formed on the small-diameter step portion 7 of the blade holder 3 is inclined with respect to the circumferential direction and is concentric or approximately concentric with the outer peripheral surface of the blade holder 3. An oblique long groove 8a extending to the upper depth and a parallel long groove 8b extending to a depth parallel to the circumferential direction and concentric or substantially concentric with the outer peripheral surface of the blade holder 3 are formed to communicate with each other. FIG. 10 is a side view with a partial cross section of the holder unit 1 in this case. In FIG. 5, as shown in FIG. 2(c), the receiving portion 8 formed on the small-diameter stepped portion 7 of the blade holder 3 is inclined with respect to the circumferential direction and is concentric or approximately concentric with the outer peripheral surface of the blade holder 3. The oblique long groove 8a(n) extending at the upper depth communicates with the parallel long groove 8b(n) extending at a depth parallel to the circumferential direction and concentric or substantially concentric with the outer peripheral surface of the blade holder 3. FIG. 10 is a side view showing a partial cross section of the holder unit 1 when a plurality of holder units are alternately formed.

As shown in FIG. 3(a), in the non-biased state where the retaining ring 4 does not bias the upper blade (round blade) 2, the retaining ring 4 is lightly pushed by the disc spring (biasing means) 5, thereby Since the jar (protrusion) 12 is locked at the left end of the oblique long groove 8a, the retaining ring 4 is retained without coming off the cutter holder 3, and the upper blade (round blade) 2 and disc spring (biasing means) 5 are separated from each other. They are in contact with each other in a slightly energized state or in a non-energized state.

As shown in FIG. 3(b), in the urging state in which the retaining ring 4 urges the upper blade (round blade) 2, the ball plunger (convex portion) 12 is moved into an inclined long groove by rotating the retaining ring 4. 8a to change the retaining ring 4 in the axial direction of the first rotating shaft (rotating shaft) 101, and according to the change, the upper blade (round blade) 2 is moved in the axial direction, and the disc spring ( The biasing means 5 is elastically deformed to change the biasing force from the non-biased state to the biased state, and the ball plunger (convex portion) 12 is moved to an arbitrary pressure contact position (pressure contact dimension) of the inclined long groove 8a. It is in a state where it is stopped and tightened with

As described above, by rotating the retaining ring 4, the upper blade (round blade) 2 is switched from the non-biased state to the biased state, so that the material to be cut can be cut optimally while maintaining the quality of the cut surface. , if the position is determined in advance by marking the dimension S, which is an arbitrary pressure contact position (pressure contact dimension) of the oblique long groove 8a, the appropriate pressure contact position (pressure contact dimension) of the upper and lower cutting edges can be easily set. it becomes possible to Further, since the disc spring (biasing means) 5 is in circumferential contact with the side surface of the upper blade (round blade) 2 from the opposite side of the holding ring 4 with the upper blade (round blade) 2 interposed therebetween, the holding ring The pressure contact position (pressure contact dimension) can be easily and stably adjusted regardless of the position of 4 in the circumferential direction.

Further, as shown in FIG. 4, the receiving portion 8 formed on the small-diameter stepped portion 7 of the blade holder 3 is inclined with respect to the circumferential direction and has a depth that is concentric or substantially concentric with the outer peripheral surface of the blade holder 3. and a parallel long groove 8b extending parallel to the circumferential direction and extending at a depth concentric or substantially concentric with the outer peripheral surface of the blade holder 3. In this case, the retaining ring 4 is rotated to move the ball plunger (convex portion) 12 from the left end position of the oblique long groove 8a shown in FIG. By moving the retaining ring 4 up to the dimension S, the disc spring (biasing means) 5 is elastically deformed to change the biasing force, and the ball plunger (convex portion) 12 is brought into the non-biased state without tightening. can be locked by switching from the biased state to the biased state. For this reason, the oblique long groove 8a and the parallel long groove 8b are processed in advance so as to have the dimension S so that the material to be cut can be cut optimally while maintaining the quality of the cut surface. It is possible to set the pressure contact position (pressure contact dimension) of the upper and lower cutting edges.

4, the receiving portion 8 is formed with one oblique long groove 8a and one parallel long groove 8b, but as shown in FIG. It is also possible to form a plurality of them alternately. In this case, the retaining ring 4 is rotated to move the ball plunger (projection) 12 from the left end position of the oblique long groove 8a (2) shown in FIG. 5(a) to the parallel long groove 8b as shown in FIG. 5(b). (2) In the first urging state in which the pressure contact position (pressure contact dimension) is moved to the dimension S1, and as shown in FIG. A plurality of different urging states can be set, such as the second urging state in which the pressure contact position (pressure contact dimension) is moved to the dimension S2. It is possible to set appropriate pressure contact positions (pressure contact dimensions) of the upper and lower cutting edges so as to cope with differences in conditions such as material and thickness.

As described above, according to the first embodiment, when the retaining ring 4 is rotated, the convex portion formed on the inner peripheral surface of the retaining ring 4 and the receiving portion 8 formed on the outer peripheral surface of the blade holder 3 are formed. By changing the position of and according to the change, the disc spring (biasing means) 5 is elastically deformed to change the biasing force, and the retaining ring 4 and the upper blade (round blade) 2 move in the axial direction or Therefore, if the positions of the receiving portion and the convex portion are processed in advance so as to have the optimum pressure contact dimensions for cutting the member to be cut, the upper blade (round In the state of a single holder unit 1 in which a blade 2, a retaining ring 4, and a disc spring (biasing means) 5 are attached to a blade holder 3, the retaining ring 4 is rotated to move the upper blade (round blade) 2 in the axial direction. The upper blade (round blade) 2 can be set to the pressure contact position (pressure contact dimension) of the upper and lower cutting edges in advance by moving the upper blade (round blade) 2 to the biased state. In this biased state, the holder unit 1 is attached to the first rotating shaft (rotating shaft) 101 of the slitter device 100, and the cutting edge of the upper blade (round blade) 2 is lightly brought into contact with the cutting edge of the lower blade 103. The blade holder 3 is fixed to the first rotary shaft (rotary shaft) 101 by the set screw 10, and then the holding ring 4 is rotated to be in a non-biased state, so that the upper blade (round blade) 2 is brought into a predetermined pressure contact position ( pressure contact dimensions).

The position of the receiving part and the convex part can be switched with one touch. As a result, even when the cutting width is narrow, when assembling the slitter device or when changing the cutting width of the material to be cut, the pressure contact position (pressure contact dimension) of the upper and lower cutting edges can be safely and easily achieved with a simpler structure. ) can be adjusted.

(Second embodiment)
A slitter apparatus according to a second embodiment of the present invention will be described below with reference to FIGS. 6 to 10 and 13. FIG. Other configurations are the same as those of the slitter device of the first embodiment unless otherwise specified. FIG. 6 is an exploded perspective view showing an example of the holder unit 1 used in the slitter device of the embodiment of the present invention, and FIG. 7 explains three shapes of the receiving portions 13 of the retaining ring 4 shown in FIG. FIG. 8 is a diagram for explaining the operation when using the retaining ring 4 shown in FIG. 7(a); and FIG. FIG. 10 is a diagram for explaining the operation when using the retaining ring 4 shown in FIG. 7(c). As shown in FIG. 6, the holder unit 1 includes an upper blade (round blade) 2, a blade holder 3, a retaining ring 4, and a disc spring (biasing means) 5. As shown in FIG. The blade holder 3 is screwed into the flange portion 6, the small diameter step portion 7, the female screw hole 14 formed in the small diameter step portion 7, the through female screw hole 9 formed in the flange portion 6, and the through female screw hole 9. A set screw 10 is provided for fixing the holder unit 1 to one rotating shaft (rotating shaft) 101 . The retaining ring 4 comprises a receiving portion 13 and a jig (handle) 16 for rotating the retaining ring. In this case, the receiving portion 13 is formed by an elongated through hole penetrating from the inner peripheral surface of the retaining ring 4 to the outer peripheral surface thereof. A fixing bolt (convex portion) 15 having a head is screwed into the female screw hole 14 of the blade holder 3 through the receiving portion (long through hole) 13 of the retaining ring 4 . Incidentally, the convex portion 15 may be a male screw having a head.

The second embodiment differs from the first embodiment in that there is a receiving portion on the side of the retaining ring 4 and a convex portion on the side of the blade holder 3. The arrangement of the blade (round blade) 2 and retaining ring 4 is the same. The cutting edge of the upper blade (round blade) 2 is also the same on the retaining ring 4 side.

The receiving portion 13 of the retaining ring 4 is formed of elongated through holes penetrating from the inner peripheral surface to the outer peripheral surface, and as shown in FIG. (a) oblique long through-hole 13a inclined with respect to the circumferential direction, (b) oblique long through-hole 13a inclined with respect to the circumferential direction and parallel long through-hole 13b parallel to the circumferential direction communicate with each other. (c) A plurality of oblique elongated through-holes 13a(n) inclined with respect to the circumferential direction and parallel elongated through-holes 13b(n) parallel to the circumferential direction are communicated and alternately formed (n represents a plurality of two or more). Here, the circumferential direction in this case means the circumferential direction of the outer periphery of the retaining ring 4 represented by a cross section perpendicular to the axial direction. In any of the above three cases, as shown in FIG. 7, the final end of the receiving portion 13 does not pass through the side surface of the retaining ring 4 and is a dead end. A fixing bolt (protruding portion) 15 is screwed into the female screw hole 14 of the blade holder 3 through the receiving portion 13 of the retaining ring 4 , so that the retaining ring 4 can be rotated without being removed from the blade holder 3 . (Rotating shaft) 101 is held movably in the axial direction, and the upper blade (round blade) 2 and disc spring (biasing means) 5 are held in the blade holder 3 by a holding ring 4 .

The retaining ring 4 is rotatable in the circumferential direction of the first rotating shaft (rotating shaft) 101 , and by rotating the retaining ring 4 , the receiving portion 13 is rotated in the circumferential direction and the axial line with the fixing bolt (convex portion) 15 . The position of the direction is changed, and according to the change, the disc spring (biasing means) 5 is elastically deformed to change the biasing force, and the retaining ring 4 and the round blade 2 are moved to the first rotating shaft (rotating shaft) 101. move or lock in the axial direction of

As described above, the holder unit 1 is assembled as a single unit. A plurality of assembled holder units 1 are attached to the first rotating shaft (rotating shaft) 101 . After the position of the holder unit 1 is determined, the set screw 10 is tightened to fix the holder unit 1 to the first rotating shaft (rotating shaft) 101 .

As shown in FIG. 7( a ), the receiving portion 13 formed on the inner peripheral surface of the retaining ring 4 is inclined with respect to the circumferential direction and penetrates the outer peripheral surface of the retaining ring 4 . 13a is a side view of the holder unit 1. FIG. As shown in FIG. 7(b), the receiving portion 13 formed on the inner peripheral surface of the retaining ring 4 is inclined with respect to the circumferential direction and penetrates the outer peripheral surface of the retaining ring 4. As shown in FIG. 13 is a side view of the holder unit 1 in which the long parallel through-holes 13b that are parallel to the circumferential direction and penetrate through the outer peripheral surface of the retaining ring 4 are formed to communicate with each other. FIG. 10, as shown in FIG. 7(c), the receiving portion 13 formed on the inner peripheral surface of the retaining ring 4 is inclined with respect to the circumferential direction and penetrates the outer peripheral surface of the retaining ring 4. As shown in FIG. 13a(n) and a plurality of parallel elongated through-holes 13b(n) passing through the outer peripheral surface of the retaining ring 4 in parallel with the circumferential direction and communicating with each other alternately. is. Although the fixing bolt (protrusion) 15 shown in FIGS. 8 to 10 has a head portion, the illustration is omitted.

As shown in FIG. 8(a), in the non-biased state where the retaining ring 4 does not bias the upper blade (round blade) 2, the retaining ring 4 is lightly pushed by the coned disc spring (biasing means) 5, and the inclined through-hole is formed. Since the right end of the long hole 13a is locked by the fixing bolt (protrusion) 15, the retaining ring 4 is retained without being removed from the cutter holder 3, and the upper blade (round blade) 2 and disc spring (biasing means) 5 are held together. contact in a slightly energized state or in a non-energized state.

As shown in FIG. 8(b), in the biasing state in which the retaining ring 4 biases the upper blade (round blade) 2, by rotating the retaining ring 4, the oblique through elongated hole 13a is fixed by a fixing screw (projection). ) 15 to change the holding ring 4 in the axial direction of the first rotating shaft (rotating shaft) 101, and according to the change, the upper blade (round blade) 2 is moved in the axial direction, and the disc spring (Using means) 5 is elastically deformed to change the urging force from the non-urging state to the urging state, and the position of the inclined elongated through-hole 8a is moved to an arbitrary pressure contact position (pressure contact position) with respect to the fixing bolt (convex portion) 15. , and the fixing bolt (projection) 15 is tightened.

As described above, by rotating the retaining ring 4, the upper blade (round blade) 2 is switched from the non-biased state to the biased state, so that the material to be cut can be cut optimally while maintaining the quality of the cut surface. , if the position is determined in advance by marking the dimension S, which is an arbitrary pressure contact position (pressure contact dimension) of the oblique through elongated hole 13a, the appropriate pressure contact position (pressure contact dimension) of the upper and lower cutting edges can be easily obtained. can be set to Further, since the disc spring (biasing means) 5 is in circumferential contact with the side surface of the upper blade (round blade) 2 from the opposite side of the holding ring 4 with the upper blade (round blade) 2 interposed therebetween, the holding ring The pressure contact position (pressure contact dimension) can be easily and stably adjusted regardless of the position of 4 in the circumferential direction.

Further, as shown in FIG. 9, the receiving portion 13 formed on the inner peripheral surface of the retaining ring 4 is inclined with respect to the circumferential direction and extends through the outer peripheral surface of the retaining ring 4 and the oblique long through-hole 13a. It may be formed so as to be in communication with a parallel elongated through-hole 13b penetrating the outer peripheral surface of the retaining ring 4 parallel to the direction. In this case, the retaining ring 4 is rotated to move from the right end position of the oblique elongated hole 13a shown in FIG. is elastically deformed to change the urging force, and the dimension S , the non-biased state can be switched to the biased state without tightening the fixing bolt (convex portion) 15 for locking. For this reason, in order to optimally cut the member to be cut while maintaining the quality of the cut surface, by processing the oblique elongated through hole 13a and the parallel elongated through hole 13b so as to have dimension S in advance, It is possible to easily set appropriate pressure contact positions (pressure contact dimensions) of the upper and lower cutting edges.

Further, in FIG. 9, the receiving portion 13 is formed with one oblique long through-hole 13a and one parallel long through-hole 13b, but as shown in FIG. A plurality of holes 13(n) may be alternately formed in communication with each other. In this case, the retaining ring 4 is rotated to move the elongated through-hole (receiving portion) 13 along the fixing bolt (projection) 15, so that the oblique elongated through-hole 13a (2) shown in FIG. 10(b) from the right end position to the pressure contact position (pressure contact dimension) of the parallel elongated hole 13b(2) as shown in FIG. 10(c); As in the case of the second biasing state in which the pressure contact position (pressure contact dimension) of the parallel elongated hole 13b(1) is moved to the dimension S2 through the oblique through elongated hole 13a(1), a plurality of different To set appropriate pressure contact positions (pressure contact dimensions) of the upper and lower cutting edges so as to easily cope with differences in conditions such as the material and thickness of the member to be cut by enabling setting of the biasing state. becomes possible.

As described above, according to the second embodiment, when the retaining ring 4 is rotated, the protrusion formed on the outer peripheral surface of the blade holder 4 and the receiving portion 13 formed on the inner peripheral surface of the retaining ring 4 are formed. By changing the position of and according to the change, the disc spring (biasing means) 5 is elastically deformed to change the biasing force, and the retaining ring 4 and the upper blade (round blade) 2 move in the axial direction or Therefore, if the positions of the receiving portion and the convex portion are processed in advance so as to have the optimum pressure contact dimensions for cutting the member to be cut, the upper blade (round In the state of a single holder unit 1 in which a blade 2, a retaining ring 4, and a disc spring (biasing means) 5 are attached to a blade holder 3, the retaining ring 4 is rotated to move the upper blade (round blade) 2 in the axial direction. By moving and urging the upper blade (round blade) 2, the upper blade (round blade) 2 can be brought to the pressure contact position (pressure contact dimension) of the upper and lower cutting edges in advance. In this biased state, the holder unit 1 is attached to the first rotating shaft (rotating shaft) 101 of the slitter device 100, and the cutting edge of the upper blade (round blade) 2 is lightly brought into contact with the cutting edge of the lower blade 103. The blade holder 3 is fixed to the first rotary shaft (rotary shaft) 101 by the set screw 10, and then the holding ring 4 is rotated to be in a non-biased state, so that the upper blade (round blade) 2 is brought into a predetermined pressure contact position ( pressure contact dimensions).

The position of the receiving part and the convex part can be switched with one touch. As a result, even when the cutting width is narrow, when assembling the slitter device or when changing the cutting width of the material to be cut, the pressure contact position (pressure contact dimension) of the upper and lower cutting edges can be safely and easily achieved with a simpler structure. ) can be adjusted.

(Third Embodiment)
A holder unit of a slitter device according to a third embodiment of the present invention will be described below with reference to FIG. Constituent parts are the same as in the first embodiment. The difference from the first embodiment is that the upper blade (round blade) 2, the disc spring (biasing means) 5, and the retaining ring 4 are inserted into the small-diameter step portion 7 of the blade holder 3 in this order. It should be noted that the cutting edge of the upper blade (round blade) 2 is arranged on the side opposite to the disc spring (biasing means) 5, which is the same. That is, the retaining ring 4 pushes the upper blade (round blade) 2 via the disc spring (biasing means) 5, and the upper blade (round blade) 2 contacts the side surface 6a of the flange portion 6 of the blade holder 3. Since they are in contact with each other and do not move in the axial direction, the disc spring (biasing means) 5 is elastically deformed to bias the upper blade (round blade) 2 . In this embodiment, for example, it is desired to set appropriate pressure contact positions (pressure contact dimensions) of the upper and lower cutting edges without moving the upper blade (round blade) 2 in the axial direction.

In the case of this embodiment as well, there are three types of receiving portions 8 formed on the small-diameter stepped portion 7 of the blade holder 3, as shown in FIG. FIG. 11 shows an oblique long groove 8a which is inclined with respect to the circumferential direction of FIG. A typical example is a parallel long groove 8b extending at a depth concentrically or substantially concentrically with the outer peripheral surface of the blade holder 3 and formed in communication therewith.

As shown in FIG. 11( a ), the receiving portion 8 formed on the small-diameter stepped portion 7 of the blade holder 3 is inclined with respect to the circumferential direction and is concentric or approximately concentric with the outer peripheral surface of the blade holder 3 . An oblique long groove 8a extending at a height and a parallel long groove 8b extending at a depth parallel to the circumferential direction and concentrically or substantially concentrically with the outer peripheral surface of the blade holder 3 are formed to communicate with each other. In this case, the retaining ring 4 is rotated to move the ball plunger (convex portion) 12 from the left end position of the oblique long groove 8a shown in FIG. ), the disc spring (biasing means) 5 is elastically deformed to change the biasing force, and the ball plunger (convex portion) 12 is moved from the non-biased state without tightening. The retaining ring 4 can be locked by switching to the biased state. For this reason, the oblique long groove 8a and the parallel long groove 8b are processed in advance so as to have the dimension S so that the material to be cut can be cut optimally while maintaining the quality of the cut surface. It is possible to set the pressure contact position (pressure contact dimension) of the upper and lower cutting edges.

In this case, the operation is opposite to that in the first embodiment, and after the holder unit 1 is placed in the non-biased state and attached to the first rotating shaft (rotating shaft) 101, the upper blade (round blade) is used. 2 is brought into light contact with the lower blade 103, and the blade holder 3 is fixed to the first rotating shaft (rotating shaft) 101 with the set screw 10, and then the retaining ring 4 is rotated to be in a biased state, whereby the upper blade The (round blade) 2 and the lower blade 103 are brought into pressure contact with a predetermined pressure contact force.

(Fourth embodiment)
A holder unit of a slitter device according to a fourth embodiment of the present invention will be described below with reference to FIG. Constituent parts are the same as those of the second embodiment. The difference from the second embodiment is that the upper blade (round blade) 2, the disc spring (biasing means) 5, and the retaining ring 4 are inserted in this order into the small-diameter stepped portion 7 of the blade holder 3. The cutting edge of the (round blade) 2 is arranged on the side opposite to the disc spring (biasing means) 5 . That is, the retaining ring 4 pushes the upper blade (round blade) 2 via the disc spring (biasing means) 5, and the upper blade (round blade) 2 contacts the side surface 6a of the flange portion 6 of the blade holder 3. Since they are in contact with each other and do not move in the axial direction, the disc spring (biasing means) 5 is elastically deformed to bias the upper blade (round blade) 2 . In this embodiment, for example, it is desired to set appropriate pressure contact positions (pressure contact dimensions) of the upper and lower cutting edges without moving the upper blade (round blade) 2 in the axial direction.

Also in this embodiment, there are three types of receiving portions 13 formed on the blade retaining ring 4, as shown in FIG. FIG. 12 shows, as a representative example, one formed by connecting oblique elongated through holes 13a inclined with respect to the circumferential direction of FIG. 7(b) and parallel elongated through holes 13b parallel to the circumferential direction. I gave it.

As shown in FIG. 12(a), the receiving portion 13 formed in the retaining ring 4 includes an oblique long through-hole 13a inclined with respect to the circumferential direction and a parallel long through-hole 13b parallel to the circumferential direction. are formed in communication with each other. In this case, as shown in FIG. 12(a), the retaining ring 4 is rotated from the position where the receiving portion is locked by the fixing screw (convex portion) 15 at the right end of the oblique through elongated hole 13a, and the position shown in FIG. 12(b) is obtained. As shown, by moving along the fixing screw (convex portion) 15 to the dimension S of the pressure contact position (pressure contact dimension) of the parallel elongated hole 13b, the disc spring (biasing means) 5 is elastically deformed to release the biasing force. It is possible to switch from the non-biased state to the biased state without tightening the fixing screw (convex portion) 15 . For this reason, in order to optimally cut the member to be cut while maintaining the quality of the cut surface, by processing the oblique elongated through hole 13a and the parallel elongated through hole 13b so as to have dimension S in advance, It is possible to easily set appropriate pressure contact positions (pressure contact dimensions) of the upper and lower cutting edges. Although the fixing bolt (convex portion) 15 shown in FIG. 12 has a head portion, the illustration is omitted.

In this case as well, the operation is reversed to that in the second embodiment, and the holder unit 1 is placed in the non-biased state and mounted on the first rotary shaft (rotary shaft) 101, and the upper blade (round blade) 2 is is lightly brought into contact with the lower blade 103 and the blade holder 3 is fixed to the first rotating shaft (rotating shaft) 101 with the set screw 10, and then the holding ring 4 is rotated to be in a biased state, whereby the upper blade (round The blade 2 and the lower blade 103 are brought into pressure contact with a predetermined pressure contact force.

As described above, according to the third and fourth embodiments, by rotating the retaining ring 4, the convex portion formed on either the outer peripheral surface of the cutting tool holder or the inner peripheral surface of the retaining ring and a receiving portion formed on the other surface are changed, and according to the change, without moving the round blade 2, the disc spring (biasing means) 5 is elastically deformed to change the biasing force, In addition, since the retaining ring 4 is moved or locked in the axial direction, the first rotating shaft ( The holding ring 4 is rotated in the state of the holder unit 1 alone in which the disc spring (biasing means) 5, the upper blade (round blade) 2, and the holding ring 4 are mounted on the blade holder 3 before being mounted on the rotating shaft 101. The upper blade (round blade) 2 can be set to the pressure contact position (pressure contact dimension) of the upper and lower cutting edges in advance by moving the upper blade (round blade) 2 in the axial direction to the biased state. The holder unit 1 is attached to the first rotating shaft (rotating shaft) 101 in a non-biased state, and the cutting tool holder 3 is pushed at a position where the cutting edge of the upper blade (round blade) 2 is lightly brought into contact with the cutting edge of the lower blade 103. By fixing to the first rotating shaft (rotating shaft) 101 with the screw 10 and then rotating the retaining ring 4 to make it in an energized state, the upper blade (round blade) 2 is pressed at a predetermined pressing position (pressing dimension). be able to.

The position of the receiving part and the convex part can be switched with one touch. As a result, even when the cutting width is narrow, when assembling the slitter device or when changing the cutting width of the material to be cut, the pressure contact position (pressure contact dimension) of the upper and lower cutting edges can be safely and easily achieved with a simpler structure. ) can be adjusted.

Although the embodiments according to the present invention have been described above, the present invention is not limited to these, and can be changed and modified within the scope described in the claims.

According to the present invention, even when the cutting width is narrow, when assembling the slitter device or when changing the cutting width of the member to be cut, by rotating the holding ring, it is possible to safely and easily cut the material with a simple structure. It is useful as a slitter device having the effect of being able to adjust the pressure contact position (pressure contact dimension) of the upper and lower cutting edges.

1 holder unit 2 upper blade (round blade)
3 Blade holder 4 Retaining ring 5 Disc spring (biasing means)
6 Flange portion 7 Small diameter step portion 8 Receiving portion 9 Through female screw hole 10 Push screw 11 Through female screw hole 12 Ball plunger (convex portion)
13 Receiving portion 14 Female screw hole 15 Fixing bolt (convex portion)
16 handle 100 slitter device 101 first rotating shaft (rotating shaft)
102 Second rotating shaft 103 Lower blade

Claims (7)

A round blade, a blade holder attached to a rotary shaft and fitted with the round blade, a holding ring holding the round blade in the blade holder, and the holding ring fitted in the blade holder and sandwiching the round blade. elastically deformable biasing means for circumferentially contacting the side surface of the round blade from the opposite side to bias the round blade in the axial direction of the rotating shaft,
A convex portion is formed on one of the outer peripheral surface of the cutter holder to which the inner peripheral surface of the retaining ring is fitted and the inner peripheral surface of the retaining ring, and the convex portion is formed on the other surface. protrudes and a receiving portion is formed in which the convex portion is relatively movable,
When the one surface on which the protrusion is formed is the inner peripheral surface of the retaining ring, the protrusion is screwed into a female screw hole formed penetrating from the outer peripheral surface to the inner peripheral surface of the retaining ring. In the case of a set screw or a ball plunger, and the one surface on which the convex portion is formed is the outer peripheral surface of the blade holder, the convex portion is inserted into the female screw hole formed in the outer peripheral surface of the blade holder. a headed external thread or a headed bolt threaded through the receiving portion of the retaining ring;
By rotating the retaining ring, the circumferential and axial positions of the projection and the receiving portion are changed, and according to the change, the biasing means is elastically deformed to change the biasing force, and A slitter device, wherein the holding ring and the round blade are moved or locked in the axial direction. A round blade, a blade holder attached to a rotary shaft and fitted with the round blade, a holding ring holding the round blade in the blade holder, and the holding ring fitted in the blade holder and sandwiching the round blade. elastically deformable biasing means for circumferentially contacting the side surface of the round blade from the side and biasing the round blade in the axial direction of the rotating shaft,
A convex portion is formed on one of the outer peripheral surface of the cutter holder to which the inner peripheral surface of the retaining ring is fitted and the inner peripheral surface of the retaining ring, and the convex portion protrudes from the other surface. and a receiving portion is formed in which the convex portion is relatively movable,
When the one surface on which the protrusion is formed is the inner peripheral surface of the retaining ring, the protrusion is screwed into a female screw hole formed penetrating from the outer peripheral surface to the inner peripheral surface of the retaining ring. In the case of a set screw or a ball plunger, and the one surface on which the convex portion is formed is the outer peripheral surface of the blade holder, the convex portion is inserted into the female screw hole formed in the outer peripheral surface of the blade holder. a headed external thread or a headed bolt threaded through the receiving portion of the retaining ring;
By rotating the retaining ring, the circumferential and axial positions of the convex portion and the receiving portion are changed, and according to the change, the urging force is applied without moving the round blade in the axial direction. A slitter device characterized in that the biasing force is changed by elastically deforming means. When the one surface on which the convex portion is formed is the inner peripheral surface of the retaining ring, the receiving portion formed on the outer peripheral surface of the blade holder is inclined with respect to the circumferential direction and is aligned with the outer peripheral surface of the blade holder. It is formed with oblique long grooves extending to a depth that is concentric or substantially concentric, and is formed on the inner peripheral surface of the retaining ring when the one surface on which the convex portion is formed is the outer peripheral surface of the blade holder. 3. The slitter device according to claim 1, wherein the receiving portion is formed of an oblique elongated through-hole that is inclined with respect to the circumferential direction and penetrates the outer peripheral surface of the retaining ring. When the one surface on which the convex portion is formed is the inner peripheral surface of the retaining ring, the receiving portion formed on the outer peripheral surface of the blade holder is inclined with respect to the circumferential direction and is aligned with the outer peripheral surface of the blade holder. A long oblique groove extending to a depth on a concentric circle or a substantially concentric circle and a parallel long groove extending parallel to the circumferential direction and extending to a depth on a concentric circle or substantially concentric circle with the outer peripheral surface of the blade holder communicate with each other. When the one surface on which the convex portion is formed is the outer peripheral surface of the blade holder, the receiving portion formed on the inner peripheral surface of the retaining ring is inclined with respect to the circumferential direction. and a parallel elongated through-hole that is parallel to the circumferential direction and penetrates through the outer peripheral surface of the retaining ring are formed in communication with each other. The slitter device described in When the one surface on which the convex portion is formed is the inner peripheral surface of the retaining ring, the receiving portion formed on the outer peripheral surface of the blade holder is inclined with respect to the circumferential direction and is aligned with the outer peripheral surface of the blade holder. A long oblique groove extending to a depth on a concentric circle or a substantially concentric circle and a parallel long groove extending parallel to the circumferential direction and extending to a depth on a concentric circle or substantially concentric circle with the outer peripheral surface of the blade holder communicate with each other. When the one surface on which the convex portions are formed is the outer peripheral surface of the blade holder, the receiving portions formed on the inner peripheral surface of the retaining ring are inclined with respect to the circumferential direction. A plurality of oblique elongated through-holes penetrating the outer peripheral surface of the retaining ring and parallel elongated through-holes parallel to the circumferential direction and penetrating the outer peripheral surface of the retaining ring communicate with each other and are alternately formed. The slitter device according to claim 1 or claim 2 6. The slitter device according to claim 1 , further comprising a handle for rotating said retaining ring in the circumferential direction of said rotating shaft. 7. The slitter apparatus according to claim 1, wherein said biasing means is a disc spring.

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