JP6574672B2 - Slitter device - Google Patents

Description

The present invention relates to a slitter device for cutting a strip-shaped member to be cut into a plurality of narrow strips along the length direction, and in particular, a high-precision magnetic tape for computers, a base material for secondary batteries, or an electronic circuit. The present invention relates to a slitter device having a blade holder unit that can freely change the cutting width of a member to be cut while maintaining the cutting width dimension and the quality of the cut edge of a band-like member to be cut such as a substrate material for use.

A schematic of a slitter having a cutter holder unit will be described with reference to FIGS. 7 through 12. FIG. 7 is a front view excluding the drive transmission unit of the slitter device in which the blade holder unit capable of freely changing the cutting width of the member to be cut is arranged with the same direction of the blade edge, and FIG. It is a front view except the drive transmission part of the slitter apparatus by which the blade holder unit which can change the cutting width of this is arrange | positioned by changing the direction of a blade edge | tip alternately. Figure 9 is a cross-sectional view of the cutting member cut by the slitter of Figures 7 and 8. FIG. 10 is a partial cross-sectional view of the blade holder unit. FIG. 11 is a view for explaining a conventional blade holder. FIG. 12 is a view for explaining a state of the blade holder unit having the blade holder of FIG.

The slitter device 1 having the blade holder unit 2 that can freely change the cutting width of the member to be cut includes, for example, a slitter device 1 in which a plurality of blade holder units 2 are arranged with the same blade edge direction as shown in FIG. Alternatively, as shown in FIG. 8 , there is a slitter device 1 in which a plurality of blade holder units 2 are arranged by alternately changing the direction of the blade edge. As shown in FIG. 10 , the blade holder unit 2 includes a blade holder 4 on which a ring-shaped first round blade (hereinafter referred to as an upper blade) 3 having a relatively thin thickness is mounted, and the upper blade 3 is used as the blade holder 4. And a cylindrical presser lid 5 held on the blade holder 4 by a plurality of holding bolts 7 sandwiched concentrically and mounted on the first rotating shaft 10. A rigid second round blade (hereinafter referred to as a lower blade) 12 is attached to the second rotating shaft 11. The first rotating shaft 10 and the second rotating shaft 11 are assembled in parallel. Further, the edge side surface of the upper blade 3 and the edge side surface of the lower blade 12 are adjusted to maintain a predetermined clearance in the case of a relatively thick member to be cut, for example, and in the case of a relatively thin member in FIG. As shown, an urging means (disc spring) 13 is mounted on the holder unit 2 and the amount of deflection is adjusted so as to maintain a predetermined contact pressure. Then, the band-shaped member to be cut sent between the first rotating shaft 10 and the second rotating shaft 11 is cut into a plurality of narrow bands along the length direction.

By the way, in the slitter apparatus 1 as described above, when changing the cutting width of the strip-shaped member to be cut, the blade holder unit 2 can be moved even if the cutting width is repeatedly changed by moving the blade holder unit 2 in the axial direction. It must be ensured that it can be securely fixed, and the thrust runout of the cutting edge of the upper blade 3 can be easily within an appropriate range. This technique is disclosed in Patent Document 1 previously proposed by the present applicant. As shown in FIG. 11 , the deep grooves 40a and 40b penetrate in the axial direction on the inner peripheral surface 4b side and the outer peripheral surface 4c side of the blade holder 4 and do not reach the other surface side substantially in the radial direction. Are formed adjacent to each other in an alternating manner, and the deep groove is formed as a connecting portion 40e connecting the inner peripheral surface 4b side and the outer peripheral surface 4c side, and the connecting portion 40e is elastic in a plane perpendicular to the axial direction. The bottom portion 40c and the bottom portion 40d are formed so as to leave a slight thickness so as to be deformable. Then, by tightening the shaft fixing bolt 90 and elastically deforming the connecting portion 40e, the inner diameter of the blade holder 4 is reduced, and the blade holder unit 2 is fixed to the first rotating shaft 10. A similar groove is formed in the presser lid 5.

According to this method, since the work of tightening or loosening the shaft fixing bolt 90 can be performed from the front of the slitter device 1 as shown in FIG . 7 or FIG. 8 , the blade holder unit 2 is moved in the axial direction. The tool holder unit can be securely fixed with the fixing bolt 90 even when the cutting width is repeatedly changed, and the thrust runout of the blade edge can be suppressed to a small level.

JP 2010-188464 A

However, even in this case, when the shaft fixing bolt 90 is tightened, the thrust runout of the cutting edge exceeding the allowable range occurs due to the force acting in the direction indicated by the arrow as shown in FIG. There is. 12A , the upper blade 3 is on the left side of the shaft fixing bolt 90, and the upper blade 3 is on the right side of the shaft fixing bolt 90, as shown in FIG. The clearance or contact pressure between the side surface of the upper blade 3 and the side surface of the lower blade 12 may differ. This will be described below.

In the slitter device 1 having the blade holder unit 2 that can freely change the cutting width of the member to be cut, the blade holder unit 2 can be easily moved in the axial direction of the first rotating shaft 10 when the shaft fixing bolt 90 is loosened. The outer diameter of the first rotary shaft 10 and the inner diameter of the blade holder 4 are processed with a tolerance that provides a clearance fit. For example, in the case of a rotating shaft of φ80 mm, the outer diameter tolerance of the first rotating shaft 10 is g5 (maximum −0.010 mm, minimum −0.023 mm), and the inner diameter tolerance of the blade holder 4 is H6 (maximum +0.019 mm, minimum 0 mm). ) As clearance tolerance. In this case, the clearance between the outer diameter of the first rotating shaft 10 and the inner diameter of the blade holder 4 is from 0.01 mm to 0.042 mm. Due to this clearance, when the shaft fixing bolt 90 is tightened, the upper blade 3 is moved to the left side of the shaft fixing bolt 90 by the action of the tightening torque of the shaft fixing bolt 90 as shown in FIG. Even in some cases, or even when the upper blade 3 is on the right side of the shaft fixing bolt 90 as shown in FIG. 12B, the blade holder unit 2 is tightened while tilting in the direction of the arrow. The blade holder unit 2 is fixed to the first rotating shaft 10 without the inclination being eliminated. This is because the blade holder unit 2 can be reliably fixed to the first rotating shaft 10 by the fixing bolt 90, but there is a slight gap between the first rotating shaft 10 and the blade holder 4, so the fixing bolt This is because it is affected by the moment of force caused by screwing 90 and tightening.

As a result, a thrust runout exceeding the allowable range is generated at the cutting edge of the upper blade 3, and the circumference between the side surface of the upper blade 3 and the side surface of the lower blade 12 during one rotation of the upper blade 3. This causes unevenness in the direction or unevenness in contact pressure. 12A , the upper blade 3 is on the left side of the shaft fixing bolt 90, and the upper blade 3 is on the right side of the shaft fixing bolt 90, as shown in FIG. The clearance or contact pressure between the side surface of the upper blade 3 and the side surface of the lower blade 12 is different.

The following problems arise when the unevenness of the clearance or the unevenness of the contact pressure occurs due to the thrust vibration. First, since a sufficient cutting force cannot be obtained in a range where the clearance between the cutting edge side surface of the upper blade 3 and the cutting edge side surface of the lower blade 12 is large or in a range where the contact pressure is low, the member to be cut is cut so as to be broken and cut powder. Will occur. This is a factor that affects the cutting quality of the workpiece. In the range where the clearance is small or the contact pressure is high, partial wear (uneven wear) occurs on the cutting edge. This causes the life of the blade not to be obtained. Further, a mottled pattern or a contact pressure unevenness during one rotation of the upper blade 3 repeatedly causes a mottled pattern on the cut surface along the cutting direction.

Next, when the clearance or contact pressure between the side surface of the upper blade 3 and the side surface of the lower blade 12 is different as shown in FIGS. 12 (a) and 12 (b), there are the following problems. Arise. First , in the case of the slitter device 1 shown in FIG. 7 , the cutter holder unit 2 is the slitter device 1 arranged with the same direction of the blade edge. In this case, the cross-sectional view of the cut member W <b> 1 is as follows : As shown in FIG. 9 (a), a sag surface 101 and a vertical surface 201 are formed on one surface (left side in the figure) by a marginal surface (inclined surface) of the upper blade 3, and the other surface is a sag surface. A vertical surface 202 where no occurrence occurs is formed. Further, in the case of the slitter device shown in FIG. 8 , the blade holder unit 2 is the slitter device 1 in which the direction of the blade edge is alternately changed. In this case, the sectional view of the cut member W2 is shown in FIG . As shown in (b), the sagging surface (inclined surface) of the upper blade 3 causes the sagging surface 102 and the subsequent vertical surface 203 on one surface, and the sagging surface 103 and the subsequent vertical surface on the other surface. As shown in FIG . 9C , the sectional view of the cut member W3 is formed with a vertical surface 205 and a vertical surface 206 in which no sagging surface is generated on both sides. I try to do it. That is , the slitter apparatus shown in FIG. 8 is used when a higher cutting quality is required for the slitter apparatus shown in FIG. 7 , such as when only the member to be cut W3 is used as a product . Device.

In these slitter devices 1, the shaft fixing bolt 90 is positioned away from the lower blade so that the tightening tool does not hit the lower blade as shown in FIGS . 7 and 8 , and viewed from the front of the slitter device 1. It is arranged at a position where it can be easily tightened. However, in the case of FIG. 12 (a), the pressure contact force with the lower blade is increased, and in the case of FIG. 12 (b), the pressure contact force with the lower blade is decreased. become.

That is, in the case of the slitter device shown in FIG. 7 , the clearance or contact pressure between the upper blade and the lower blade differs depending on whether the blade edge is leftward as shown in the drawing or rightward (not shown). . For this reason, when both a member to be cut having a sag surface on the left side and a symmetrical member having a sag surface on the right side are required, the size of the sag surface 101 is different or the vertical surfaces 201 and 202 The surface roughness is different and the two types of members to be cut are not symmetrical.

In the case of the slitter device shown in FIG. 8 , even if the structure for finishing the left and right cut surfaces of the bent member to be cut evenly and accurately is obtained, the cutting edge side surface of the upper blade 3 and the cutting edge side surface of the lower blade 12 Since the gap or the contact pressure is different between the left and right, the size of the left sag surface 102 and the right sag surface 103 is different in the member to be cut W2 shown in FIG. The surface roughness of the vertical surface 204 is different, and in the member to be cut W3 shown in FIG. 9C , the surface roughness of the cut surface is different between the left vertical surface 205 and the right vertical surface 206. The surface roughness will not be equal left and right.

When the above problems occur, the life of the blade and the quality of the cut member to be cut may be affected. For this reason, every time the cutting width is changed, the shaft fixing bolt 90 of each blade holder 4 must be tightened or adjusted to adjust the thrust runout to be within an appropriate range. Or, in the worst case, it could not be adjusted and had to be replaced with another blade holder unit.

The present invention was made in view of the disadvantages of the slitter device having the conventional blade holder unit as described above, and the blade holder unit can be securely fixed even when the cutting width is repeatedly changed. In addition, a slitter device that can easily keep the blade blade thrust runout within the minimum appropriate range, thereby improving the life of the blade and maintaining and improving the quality of the cut member. The task is to do.

In order to solve the above-described problems, the present invention first includes a blade holder that is fitted to a rotating shaft and includes a fixing means that is fixed to the rotating shaft, and an annular shape that is held coaxially with the rotating shaft by the blade holder. In the slitter apparatus having a blade holder unit provided with a round blade, the fixing means temporarily fixes the blade holder unit to the rotating shaft, and permanently fixes the blade holder unit to the rotating shaft. The temporary fixing means comprises a swing cam that swings in a plane perpendicular to the axial center line of the rotating shaft and press-contacts the rotating shaft. An inner peripheral surface groove that is formed of a male screw member that rotates and press- contacts the rotating shaft, extends to the blade holder in an approximately circumferential direction, communicates with the inner peripheral surface of the blade holder, and penetrates in the axial direction of the blade holder Is formed and said The separated portion by said inner peripheral surface grooves and the inner circumferential surface of the object holder elastically deformable portion capable scaling the inner peripheral surface of the blade holder is elastically deformed in cantilever beam shape is formed, the pivot After temporarily fixing the blade holder unit to the rotating shaft by causing the cam to swing and bringing the temporary fixing means into contact with the elastically deforming portion to indirectly press the temporary fixing means to the rotating shaft, A slitter device in which the blade holder unit is permanently fixed to the rotating shaft by the male screw member.

Thereby, first, the gap between the first rotating shaft and the blade holder can be eliminated without causing a thrust swing by causing a force in the plane perpendicular to the axial center line of the rotating shaft to act by the temporary fixing means. The blade holder unit can be securely fixed by this fixing means, and the thrust runout can be further suppressed.
In addition, this allows the inner peripheral surface of the blade holder to come into pressure contact with the rotary shaft by line contact or surface contact, so that the thrust runout of the upper blade edge can be more effectively minimized, and Thus, the rotating shaft can be prevented from being damaged by the temporary fixing means.

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Also, a slitter device in which the blade holder unit is permanently fixed to the rotating shaft by bringing the permanent fixing means into contact with the rotating shaft indirectly by bringing the main fixing means into contact with the elastic deformation portion. And

As a result, the rotating shaft can be prevented from being damaged by the screw of the fixing means.

Further, an axial hole parallel to the axial center line of the rotary shaft is formed on a side surface of the cutter holder, and the axial hole communicates with the elastic deformation portion of the cutter holder toward the substantially axial center line of the rotary shaft. And at least two inner peripheral surface side through-holes and outer peripheral surface side through-holes facing the inner peripheral surface side through-holes and communicating with the outer peripheral surface of the blade holder are formed in the shaft hole. A rocking shaft capable of rocking the shaft hole is fitted, and the rocking shaft is perpendicular to the rocking shaft at one or more but not all of the inner peripheral surface side through hole and the outer peripheral surface side through. A first screw hole communicating with the hole and a second screw hole communicating with the remaining inner peripheral surface side through hole and the outer peripheral surface side through hole at right angles to the swing shaft are formed. The cam is screwed into the first screw hole and protrudes in a swingable manner into one or more inner peripheral surface side through holes that are not all of the blade holder. The projecting amount includes a temporary fixing set screw that can be adjusted from one or more outer peripheral side through holes whose projecting amounts are not all, and the male screw member is screwed into the second screw hole and the remaining inner periphery It consists of a main fixing push screw that is pressed against the rotary shaft through a surface-side through hole, and swings the swing shaft to indirectly press the temporary fix push screw against the rotary shaft , thereby moving the blade holder unit to the rotary shaft. A slitter that temporarily fixes the blade holder unit to the rotating shaft by temporarily rotating the main fixing push screw and causing the main fixing push screw to be in pressure contact with the rotating shaft after being temporarily fixed to the rotating shaft. A device.

Thus, by providing a rocking cam on the rocking shaft to make a temporary fixing push screw whose projection amount can be adjusted, and this fixing means is also a permanent fixing push screw, the pressure contact amount of the temporary fixing means to the rotating shaft Can be easily adjusted, and can be reliably fixed by this fixing means.

Further, among the temporary fixing push screw and the main fixing push screw, at least the temporary fixing push screw is a slitter device that is a plunger having a built-in elastic body capable of adjusting a pressing force.

As a result, the amount of press contact of the temporary fixing means to the rotating shaft can be adjusted more easily.

Further, an axial hole parallel to the axial center line of the rotary shaft is formed on a side surface of the cutter holder, and the axial hole communicates with the elastic deformation portion of the cutter holder toward the substantially axial center line of the rotary shaft. And at least one inner peripheral surface side through hole and an outer peripheral surface side through hole facing the inner peripheral surface side through hole and communicating with the outer peripheral surface of the blade holder are formed in the shaft hole. A swing shaft capable of swinging the shaft hole is fitted, and the swing shaft has a first screw hole communicating with the through hole on the inner peripheral surface side, and a screw diameter is larger than a screw diameter of the first screw hole. A second screw hole having one end communicating with the first screw hole and the other end communicating with the outer peripheral surface side is formed concentrically, and the swing cam is screwed into the first screw hole. and set screw for indirectly pressed against the rotary shaft swingably projecting into the inner peripheral surface side through hole to either the outer peripheral surface side through hole A tool has a through hole that can be inserted and is screwed into the second screw hole and rotates the push screw. The push screw is brought into contact with the push screw so that the push screw cannot be retracted from a predetermined protruding position. The male screw member also serves as the push screw. The push screw disposed at the projecting position is indirectly pressed against the rotary shaft by swinging the swing shaft. Then, after temporarily fixing the blade holder unit to the rotary shaft, the slitter device is configured to rotate the push screw to permanently fix the blade holder unit to the rotary shaft.

Thus, the temporary fixing means and the main fixing means can be reliably performed with a simpler structure by using the temporary fixing means as a push screw whose protrusion amount can be adjusted and the main fixing means as the same pressing screw.

The push screw is a slitter device that is a plunger having a built-in elastic body capable of adjusting the pressure contact force.

As a result, the amount of press contact of the temporary fixing means to the rotating shaft can be adjusted more easily.

Further, the slitter device is configured so that the blade holder unit can be permanently fixed by the permanent fixing means only when the blade holder unit is temporarily fixed by the temporary fixing means.

As a result, it is possible to prevent the permanent fixing by the main fixing means from being accidentally fixed before temporarily fixing by the temporary fixing means, and it is possible to reliably prevent the thrust runout of the blade edge of the upper blade. .

According to the present invention, the blade holder unit can be securely fixed even when the cutting width is repeatedly changed, and the thrust runout of the blade edge can be easily accommodated within the minimum appropriate range. Therefore, the life of the blade can be improved, and the quality of the cut member to be cut can be maintained and improved.

The perspective view for demonstrating the 1st Example of the slitter apparatus which concerns on this invention. The figure for demonstrating run-out of the blade edge | tip of the blade holder unit of the slitter apparatus which concerns on this invention. The figure for demonstrating operation | movement of the blade holder unit of 1st Example of the slitter apparatus which concerns on this invention. The figure for demonstrating operation | movement of the blade holder unit of 1st Example of the slitter apparatus which concerns on this invention. The perspective view for demonstrating the 2nd Example of the slitter apparatus which concerns on this invention. The figure for demonstrating operation | movement of the blade holder unit of 2nd Example of the slitter apparatus which concerns on this invention. The front view except the drive transmission part of the slitter apparatus by which the cutter holder unit which can change the cutting width of a to-be-cut member freely is made the same direction of a blade edge | tip. The front view except the drive transmission part of the slitter apparatus by which the blade holder unit which can change the cutting width of a to-be-cut member freely changes the direction of a blade edge | tip, and is arrange | positioned. Sectional drawing of the to-be-cut member cut | disconnected by the slitter apparatus of FIG . 7 and FIG. The fragmentary sectional view of a blade holder unit. The fragmentary sectional view of the blade holder for demonstrating the blade holder of a prior art. The figure for demonstrating the state of the blade holder unit which has the blade holder of FIG.

Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. 1 to 4, 7 and 8. FIG .
As shown in FIG. 1, the blade holder 4 is formed with a step portion 4 a that matches the inner peripheral surface 3 a of the upper blade 3 and the inner peripheral surface 13 a of the disc spring 13 for mounting the upper blade 3 and the disc spring 13. ing. A plurality of female screw holes 9 are formed in the side surface of the blade holder 4 for screwing the holding bolts 7 at intervals around the rotation axis.

A counterbore hole (not shown) is formed in the presser lid 5 so as to be concentrically attached to the blade holder 4 and is aligned with the step portion 4 a of the blade holder 4. Has been opened.

Next, assembly of the blade holder unit 2 and assembly of the slitter device 1 will be described until the blade tip side surface of the upper blade 3 and the blade tip side surface of the lower blade 12 are adjusted and assembled so as to maintain a predetermined contact pressure.

Assembling the blade holder unit 2 first assembles the swing shaft 6. A coil spring having a rotatable ball 65 at its tip in first screw holes 61 provided at two left and right positions in the axial direction of the oscillating shaft 6 and having an adjustable pressure contact force as shown in FIG. A temporarily fixed ball plunger 64 (manufactured by MISUMI Corporation or an equivalent) is screwed in. The length of the temporarily fixing ball plunger 64 is shorter than the diameter of the oscillating shaft 6 and is attached so that both ends do not protrude from the oscillating shaft 6.

A shaft hole 42 parallel to the shaft center line (the shaft center line of the first rotary shaft 10) is formed in the side surface of the blade holder 4 and the outer peripheral surface 4c of the blade holder 4 is passed through the outer peripheral surface side communicating with the shaft hole 42. A hole 41 is formed. Then, the swing shaft 6 is inserted into the shaft hole 42, and the main fixing ball plunger 63 (manufactured by MISUMI Corporation or equivalent) is inserted into the second screw hole 62 provided in the swing shaft 6 from the outer peripheral surface side through hole 41. Screw in. An adjustment hole 44 that communicates with the shaft hole 42 and adjusts the screwing of the temporary fixing ball plunger 64 is opposed to the first screw hole 61 of the swing shaft 6 on the outer peripheral surface 4 c of the blade holder 4. An escape groove 43 that is formed and communicates with the shaft hole 42 so that the temporarily fixing ball plunger 64 protrudes from the first screw hole 61 and can be swung is formed.

The through hole 41 on the outer peripheral surface side of the blade holder 4 extends toward the outer peripheral surface of the blade holder 4 so that the main ball plunger 63 can be swung only in a plane perpendicular to the axial center line of the blade holder 4. It is formed in a fan shape, and one surface in the swinging direction is composed of a right-angled surface 41b toward the axis center of the blade holder 4, and the other surface is composed of an inclined surface 41a. The length of the fixed ball plunger 63 is longer than the diameter of the swing shaft 6 and is attached so that the tip does not protrude from the swing shaft 6. The rear end protrudes from the swing shaft 6 so that the swing shaft 6 does not come out of the shaft hole 42.
Note that the shaft hole 42 through the inner peripheral side toward the Ryakujiku center of the cutter holder 4, which can pass only the fixing ball plunger 63 when the locking ball plunger 63 facing the axial center of the cutter holder 4 A hole 45 is formed.
Further, as shown in FIG. 3C, the inner peripheral surface communication groove 71 communicated with the inner peripheral surface 4b, and the relief groove 43 of the temporarily fixed ball plunger 64 communicated with the inner peripheral surface communication groove portion 71 and permanently fixed. Of the inner circumferential surface side through-hole 45 of the ball plunger 63 for use, the plunger abutment groove 72 communicating with at least the escape groove 43 of the ball plunger 64 for temporary fixation, and the plunger abutment groove 72 communicating with the plunger abutment groove 72 in a substantially circumferential direction. An inner peripheral surface groove 74 that extends in the axial direction of the blade holder 4 is formed by the extending circumferential groove 73, and a portion separated by the inner peripheral surface 4 b and the inner peripheral surface groove 74 is elastic in a cantilever shape. An elastic deformation portion 76 that can be deformed to expand and contract the inner peripheral surface 4 b is formed, and at least the temporary fixing ball plunger 64 and the main fixing ball plunger 63 are temporarily fixed to the plunger contact surface 75 of the elastic deformation portion 76. Bo And so as to abut the Le plunger 64. The locking portion 77 is formed in the middle of the inner peripheral surface communication groove 71 to lock the elastic deformation portion 76 so that it does not bend and plastically deform to the inner peripheral surface 4b.

Next, the disc spring 13 and the upper blade 3 are attached to the step 4 a of the blade holder 4. Thereafter, the upper blade 3 and the disc spring 13 are sandwiched between the blade holder 4 and the presser lid 5 and held by the holding bolt 7. Thereby, the blade holder unit 2 is assembled.

Next, adjustment of the pressure contact force for bringing the blade holder unit 2 into pressure contact with the first rotating shaft 10 with an appropriate pressure contact force by the temporary fixing means is performed according to the following procedure. This can be performed in advance before the blade holder unit 2 is incorporated into the first rotating shaft 10 by using the adjusting shaft 10 a having the same diameter as the first rotating shaft 10.
Procedure 1. As shown in FIG. 2, a dial gauge 300 for measuring the thrust deflection of the blade edge is brought into contact with the blade edge of the upper blade 3 of the blade holder unit 2 incorporated in the adjustment shaft 10 a at the tip of the upper blade 3.
Procedure 2. As shown in FIG. 3 (a), the fixed ball plunger 63 swings so that its tip does not protrude from the swing shaft 6 in a state where the ball plunger 63 is fixed to the right angle surface 41 b side of the outer peripheral surface side through hole 41. It passes through the second screw hole 62 of the shaft 6.
Procedure 3. As shown in FIG. 3B, the wrench 67 passed through the adjustment hole 44 is rotated in the direction of the arrow to compress the coil spring 70 of the temporarily fixed ball plunger 64, and the ball 65 is pressed against the plunger contact surface 75. Let
Procedure 4. The amount of pressure contact is recorded by the rotation angle of the wrench 67, the torque amount using a torque wrench, or the like.
Procedure 5. As shown in FIG. 3A, the wrench 66 is further rotated in the direction of the arrow so that the main fixing ball plunger 63 passes through the inner peripheral surface side through hole 45 and is brought into pressure contact with the adjusting shaft 10a to be in the main fixed state. To do.
Procedure 6. At this time, the shake of the dial gauge 300 confirms the thrust shake of the upper blade.
Step 7. If the dial gauge 300 has a large runout, temporarily retract the temporary fixing ball plunger 64 and the main fixing ball plunger 63 and then change the pressure contact amount in steps 3 and 4 to minimize the shake of the dial gauge 300. Repeat the adjustment.
Procedure 8. When the adjustment is completed, as shown in FIG. 4A, the swinging shaft 6 is swung to tilt the main fixing ball plunger 63 toward the inclined surface 41a so that the main fixing cannot be performed. As a result, as shown in FIG. 4B, the temporarily fixing ball plunger 64 swings in the escape groove 43, so that it is detached from the adjusting shaft 10a and the temporarily fixed state is released.

This completes the adjustment of the pressing force of the temporary fixing means, and then the slitter device 1 is assembled.

The second rotary shaft 11, previously spacer 22a in the case of the slitter apparatus shown cutting width and the lower blade 12 and 7 in accordance with the cut strip number, 22b, when 22c is, the slitter apparatus 1 shown in FIG. 8 The spacers 22 d, 22 e, 22 f, and 22 g are mounted, are fastened and fixed in the axial direction by the flange portion 14 of the second rotating shaft 11 and the nut 15, and are fitted to the bearings 32 of the lower frame 31 . In the case of the slitter apparatus shown in FIG. 7 , the dimension (S1 + S2), which is a combination of the dimension S1 of the lower blade 12 and the dimension S2 of the spacer 22a, becomes the reference for the cutting width of the strip-shaped member, and the slitter apparatus 1 shown in FIG. In this case, the dimension (2 × S3 + S4) combining the dimension S3 of the clearance 12b of the lower blade 12 and the dimension S4 of the spacer 22e, or the dimension combining the dimension S5 of the cutting edge portion 12a of the lower blade 12 and the dimension S6 of the spacer 22d (2 Since × S5 + S6) is the reference for the cutting width of the strip-shaped member to be cut, the lower blade 12 and the spacers 22a to 22g are precisely processed according to the required cutting width accuracy. When changing the cutting width, the spacer 22 is removed without removing the second rotating shaft 11 from the slitter device 1 by using, for example, a two-divided spacer described in Japanese Patent Application Laid-Open No. 2008-040771. It is possible to replace the spacer 22 with a width.

The blade holder unit 2 in the state shown in FIGS. 4 (a) and 4 (b) after the pressure contact adjustment of the temporary fixing means is completed on the first rotating shaft 10 according to the procedure 1 to procedure 8 according to the number of cutting strips. The first rotating shaft 10 is fitted to the bearing 34 of the upper frame 33. Next, the lower frame 31 and the upper frame 33 are combined to assemble the frame 30. In this case, the upper blade 3 does not touch the outer peripheral surface of the lower blade 12 attached to the lower frame 31 or the outer peripheral surfaces of the spacers 22a to 22g so that the upper blade 3 is not chipped. The upper blade 3 is moved so that the blade tip comes. Then, by sandwiching a shim 35 between the lower frame 31 and the upper frame 33, the amount of vertical engagement (overlap) between the upper blade 3 and the lower blade 12 is adjusted. Next, the blade holder unit 2 is moved in the axial direction to bring the side surface of the upper blade 3 into contact with the side surface of the lower blade 12. Next, the blade tip of the upper blade 3 is temporarily fixed while the blade holder 4 is temporarily fixed with the temporary fixing ball plunger 64 which has been subjected to pressure contact adjustment by inclining the main fixing ball plunger 63 inclined to the inclined surface 41a side to the right angle surface 41b side. It adjusts so that it may become a contact pressure appropriate for a side surface and the blade edge | tip side surface of the lower blade 12 to cut | disconnect. As the method, for example, by using a blade holder or the like described in Japanese Patent Application Laid-Open No. 2014-012327, the pressure contact position (pressure contact dimension) between the side surface of the upper blade 3 and the side surface of the lower blade 12 can be adjusted safely and easily. can do. When the contact pressure between the upper blade 3 and the lower blade 12 appropriate for cutting in the temporarily fixed state is obtained, the main fixing ball plunger 63 is rotated in the direction of the arrow with a wrench 66 as shown in FIG. Then, the blade holder unit 2 is permanently fixed to the first rotating shaft 10.

As described above, first, the tool holder unit 2 is temporarily fixed to the first rotating shaft 10 with the temporary fixing ball plunger 64 of the temporary fixing means adjusted so that the thrust runout of the upper blade 3 is minimized . the inner peripheral surface 4b of the opposite side of the rotary shaft 10 is such that line contact or surface contact with the first rotary shaft 10 and the axis direction, tool holder unit 2 axis without tilting with respect to the first rotary shaft Since it is temporarily fixed at a right angle, the influence of the moment of force due to the tightening of the main fixing ball plunger 63 can be minimized. Further, unless the blade holder unit 2 is temporarily fixed by the temporary fixing means, the blade holder unit 2 cannot be fixed by the final fixing ball plunger 63 which is the main fixing means. As a result, the blade holder unit 2 can be reliably fixed even when the cutting width is repeatedly changed, and the thrust runout of the blade edge can be easily accommodated within the minimum appropriate range. Therefore, the life of the blade can be improved, and the quality of the cut member to be cut can be maintained and improved.
In addition, the main fixing ball plunger 63 and the temporary fixing ball plunger 64 are not in direct contact with the first rotating shaft 10 by point contact, but the inner peripheral surface 4b of the blade holder 4 is in line contact with the first rotating shaft 10 or Since the contact is made by surface contact, the thrust runout of the upper blade 3 can be suppressed more effectively. Further, since the ball at the tip of the final fixing ball plunger 63 or the temporary fixing ball plunger 64 does not directly contact the first rotating shaft 10, it is possible to prevent the first rotating shaft 10 from being dented by the balls. Become .

Next, a second embodiment of the present invention will be described with reference to FIGS. 2, 5, 6, 7 and 8 .
In this case, the procedure for attaching the upper blade 3 and the disc spring 13 to the blade holder 4 is the same as that in the first embodiment, so that the description thereof will be omitted and the assembly and adjustment of the blade holder unit 2 will be described.

As shown in FIG. 5, an axial hole 42 parallel to the axial center line of the blade holder 4 (the axial center line of the first rotating shaft 10) is formed on the side surface of the cutter holder 4. An outer peripheral surface side through hole 41 communicating with the outer peripheral surface 4c and an inner peripheral surface side through hole 45 are formed so as to face the outer peripheral surface side through hole 41 as shown in FIG. Then, the swing shaft 6 is inserted into the shaft hole 42. The swing shaft 6 communicates with the inner peripheral surface side through hole 45 to be screwed into the temporarily fixed and permanently fixed ball plunger 53, and the screw diameter is larger than the screw diameter of the first screw hole 51. A large one end communicates with the first screw hole 51 and the other end communicates with the outer peripheral surface side through hole 41, and a second screw hole 52 into which the locking nut 55 is screwed is formed concentrically.

The through hole 41 on the outer peripheral surface side of the blade holder 4 is formed to a size that allows the locking nut 55 to be inserted, and the through hole 45 on the inner peripheral surface side is temporarily fixed and permanently fixed ball plunger 53 is the axial center of the blade holder 4. It is formed in a long hole extending in a direction perpendicular to the axial center line of the blade holder so as to be able to swing only in a plane perpendicular to the line. Further, a right-angled surface 45a heading toward the axis center of the blade holder 4 so that the ball plunger 53 temporarily and permanently fixed can be directed to the center of the rotation axis on one surface in the swinging direction of the inner peripheral surface side through hole 45. An R-shaped surface 45b is formed on the other surface. The ball-shaped plunger 53, which is used for both temporary and permanent fixing, swings and has a space that can be retracted from the first rotary shaft 10, and spreads toward the outer peripheral surface. .
In this case as well, an elastically deformable portion 76 is formed as in FIG. 3C, and the temporarily fixed and permanently fixed ball plunger 53 is brought into contact with the elastically deformable portion 76.

Next, adjustment of the pressure contact force for bringing the blade holder unit 2 into pressure contact with the first rotating shaft 10 with an appropriate pressure contact force by the temporary fixing means is performed according to the following procedure. This can be performed in advance before the blade holder unit 2 is incorporated into the first rotating shaft 10 by using the adjusting shaft 10 a having the same diameter as the first rotating shaft 10.
Procedure 1. As shown in FIG. 2, a dial gauge 300 for measuring the thrust deflection of the blade edge is brought into contact with the blade edge of the upper blade 3 of the blade holder unit 2 incorporated in the adjustment shaft 10 a at the tip of the upper blade 3.
Procedure 2. As shown in FIG. 6 (a), the ball plunger 53 for temporary and permanent fixing is placed vertically along the right-angled surface 45 a of the inner peripheral surface side through hole 45 so as to stand vertically to the outer peripheral surface side through hole 41. Then, the wrench 68 is rotated in the direction of the arrow and screwed in, the coil spring 57 is compressed, and the ball 54 is brought into pressure contact with the plunger abutting surface 75 to be in a temporarily fixed state. The pressure contact amount at this time is a pressure contact amount by which the swing shaft 6 swings and the ball 54 can be retracted from the plunger contact surface 75 as shown in FIG.
Procedure 3. The amount of pressure contact is recorded by the rotation angle of the wrench 68, the torque amount using a torque wrench, or the like.
Procedure 4. As shown in FIG. 6 (b), the lock nut 55 is temporarily fixed so that the ball plunger 53 cannot be retracted from a predetermined position in the temporarily fixed state by rotating the wrench 69 in the direction of the arrow. The fixed and combined ball plunger 53 is brought into contact with and locked.
Procedure 5. As shown in FIG. 6A, the wrench 68 is further rotated in the direction of the arrow, and the temporarily fixed and permanently fixed ball plunger 53 is brought into pressure contact with the adjusting shaft 10a to be in the permanently fixed state.
Procedure 6. The thrust runout of the upper blade 3 is confirmed by the runout of the dial gauge 300 at this time.
Step 7. If the dial gauge 300 has a large runout, the locking nut 55 and the temporarily fixed / main-fixed ball plunger 53 are temporarily retracted, and the procedure is repeated from step 2, and the pressure contact amount is changed in steps 3 and 4 to cause the dial gauge 300 to run out. Repeat the adjustment to minimize.
Procedure 8. When the adjustment is completed, the lens 68 is first rotated in the direction opposite to the direction of the arrow in FIG. 3A until the temporarily fixed and permanently fixed ball plunger 53 contacts the locking nut 55 to return to the temporarily fixed state. As shown in FIG. 6C, the swinging shaft 6 is swung to tilt the temporarily fixed and permanently fixed ball plunger 53 in advance. As a result, the temporarily fixed and permanently fixed ball plunger 53 is released from the temporary fixing, and the adjustment of the pressing force of the temporary fixing means is completed.

As described above, by using the same ball plunger for the temporary fixing means and the main fixing means, a simpler structure can be obtained. The assembling of the slitter device 1 is the same as that of the first embodiment except that the same ball plunger is used for the temporary fixing means and the main fixing means, and the description thereof will be omitted.

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In this case as well, as in the first embodiment , the temporarily fixed and permanently fixed ball plunger 53 does not directly contact the first rotating shaft 10 by point contact, but the inner peripheral surface 4b of the blade holder 4 is the first rotating shaft 10. Therefore, the thrust runout of the upper blade 3 can be more effectively suppressed. In addition, since the ball at the tip of the ball plunger 53 that is temporarily fixed and permanently fixed is not in direct contact with the first rotating shaft 10, the first rotating shaft 10 can be prevented from being dented by the balls.

In the first and second embodiments, a ball plunger with a built-in coil spring that has a rotatable ball at the tip and can adjust the pressure contact force is used as the temporary fixing means and the main fixing means. Needless to say, the present invention is not limited to the illustrated embodiment.

1 Slitter device 2 Blade holder unit 3 First round blade (upper blade)
4 Blade holder 5 Presser lid 6 Oscillating shaft 7 Holding bolt 8 Bolt through hole 9 Female screw hole 10 First rotating shaft 11 Second rotating shaft 12 Second round blade (lower blade)
13 Disc spring 14 Flange 15 Nut 30 Frame 31 Lower frame 32 Bearing 33 Upper frame 34 Bearing 35 Shim 41 Outer peripheral surface side through hole 42 Shaft hole 43 Relief groove 44 Adjustment hole 45 Inner peripheral surface side through hole 51 First screw hole 52 First 2 screw holes 53 Ball plunger for temporary fixing and permanent fixing 54 Ball 55 Locking nut 56 Tool through hole 57 Coil spring 61 First screw hole 62 Second screw hole 63 Ball plunger for final fixing 64 Ball plunger for temporary fixing 65 Ball 66, 67, 68, 69 Wrench 70 Coil spring 71 Inner circumferential surface communication groove 72 Plunger contact groove 73 Circular groove 74 Inner surface groove 75 Plunger contact surface 76 Elastic deformation portion 77 Locking portion 90 Shaft fixing bolt 300 Dial gauge

Claims (7)

A blade holder provided with a fixing means fitted to the rotating shaft and fixed to the rotating shaft;
In a slitter device having a blade holder unit comprising an annular round blade held coaxially with the rotating shaft in the blade holder,

The fixing means temporarily fixing the blade holder unit to the rotation shaft;
A main fixing means for fixing the blade holder unit to the rotary shaft;

The temporary fixing means comprises a swing cam that swings in a plane perpendicular to the axis of the rotary shaft and presses against the rotary shaft,
The main fixing means comprises a male screw member that is in pressure contact with the rotating shaft by turning a screw,
The blade holder is formed with an inner circumferential groove that communicates with the inner circumferential surface of the blade holder and extends in a substantially circumferential direction and penetrates in the axial direction of the blade holder,
An elastically deformable portion capable of expanding and contracting the inner peripheral surface of the blade holder by elastically deforming in a cantilevered manner in a portion partitioned by the inner peripheral surface of the blade holder and the inner peripheral surface groove,
By swinging the swing cam and bringing the temporary fixing means into contact with the elastically deforming portion, the temporary fixing means is indirectly pressed against the rotating shaft to temporarily fix the blade holder unit to the rotating shaft. After
A slitter device characterized in that the blade holder unit is permanently fixed to the rotating shaft by the male screw member. Said the main fixing means by which contact with the fixing means indirectly brought into pressure contact with the rotary shaft to the elastic deformation portion, the blade holder unit in claim 1 which is adapted to the fixed to the rotating shaft The slitter device described A shaft hole parallel to the axial center line of the rotating shaft is formed on the side surface of the blade holder,
The shaft hole has at least two inner peripheral surface side through holes that communicate with the elastically deforming portion of the blade holder toward the substantially axial center line of the rotating shaft,
An outer peripheral surface side through hole that is opposed to the inner peripheral surface side through hole and communicates with the outer peripheral surface of the blade holder is formed,
The shaft hole is fitted with a swinging shaft capable of swinging the shaft hole,
The swing shaft includes a first screw hole communicating with the inner peripheral surface side through-hole and the outer peripheral surface side through-hole at one or more locations that are perpendicular to the swing shaft and not all.
A second screw hole communicating with the remaining inner peripheral surface side through hole and the outer peripheral surface side through hole perpendicular to the swing shaft is formed;
The swing cam is screwed into the first screw hole and protrudes swingably into one or more inner peripheral side through holes of the blade holder so that the protrusion amount is not all but one or more. Consisting of a temporary fixing screw that can be adjusted from the through hole on the outer peripheral surface side of
The male screw member comprises a main fixing screw that is screwed into the second screw hole and pressed against the rotating shaft through the remaining inner peripheral surface side through hole,
After oscillating the oscillating shaft and indirectly pressing the temporary fixing push screw to the rotating shaft to temporarily fix the blade holder unit to the rotating shaft,
Wherein the screw press the permanent fixing press for turning the screw main fixing to claim 1 or claim 2 so as to present secure the blade holder unit indirectly brought into pressure contact with the rotary shaft to the rotary shaft Slitter equipment 4. The slitter device according to claim 3 , wherein at least the temporary fixing push screw of the temporary fixing push screw and the main fixing push screw is a plunger including an elastic body capable of adjusting a pressure contact force. A shaft hole parallel to the axial center line of the rotating shaft is formed on the side surface of the blade holder,
The shaft hole has at least one inner peripheral surface side through hole that communicates with the elastically deforming portion of the blade holder toward the substantially axial center line of the rotating shaft,
An outer peripheral surface side through hole that is opposed to the inner peripheral surface side through hole and communicates with the outer peripheral surface of the blade holder is formed,
The shaft hole is fitted with a swinging shaft capable of swinging the shaft hole,
A first screw hole communicating with the inner peripheral surface side through hole on the swing shaft;
A second screw hole having a screw diameter larger than the screw diameter of the first screw hole and one end communicating with the first screw hole and the other end communicating with the outer peripheral surface side is formed concentrically;
The rocking cam is screwed into the first screw hole, protrudes so as to be rockable into the inner peripheral surface side through hole, and a press screw for indirectly pressing the rotating shaft;
A through hole for a tool that can be inserted from the through hole on the outer peripheral surface side and is screwed into the second screw hole to rotate the push screw, and the push screw is brought into contact with the push screw to be retracted from a predetermined protruding position. And a locking nut for locking so that it cannot
The male screw member also serves as the push screw,
After oscillating the oscillating shaft and indirectly pressing the push screw disposed at the protruding position to the rotating shaft to temporarily fix the blade holder unit to the rotating shaft,
The slitter device according to claim 1 or 2 , wherein the blade holder unit is permanently fixed to the rotating shaft by turning the push screw. The slitter device according to claim 5 , wherein the push screw is a plunger with a built-in elastic body capable of adjusting a pressure contact force. The slitter device according to any one of claims 1 to 6 , wherein the cutter holder unit can be permanently fixed by the permanent fixing means only when the cutter holder unit is temporarily fixed by the temporary fixing means.

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