WO2011068082A1

WO2011068082A1 - Slitter device

Info

Publication number: WO2011068082A1
Application number: PCT/JP2010/071220
Authority: WO
Inventors: 知幸八幡
Original assignee: 白山工業株式会社
Priority date: 2009-12-04
Filing date: 2010-11-29
Publication date: 2011-06-09
Also published as: JPWO2011068082A1; JP5499048B2

Abstract

Disclosed is a slitter device provided with rotation shafts which are rotatably supported, and cutters which are fitted over the rotation shafts. The rotation shafts each contain a solid shaft center member; an outer tubular member, the interior of which is sealed, with the shaft center member fitted inside; and a liquid pressure regulating means which is disposed in a portion of a passage communicating within the gap between the outer tubular member and the shaft center member. That portion of the shaft center member which is contained in the outer tubular member comprises a plurality of protruding walls at predetermined axial intervals, the aforementioned plurality of protruding walls being formed along the side surface outer periphery. Liquid chambers partitioned by the protruding walls communicate with one another via the gaps between the shaft center member and the protruding walls. Furthermore, not only is liquid filled into the gaps between the shaft center member and the protruding walls and into the liquid chambers, but also the liquid is pressurized by the liquid pressure regulating means, with the result that the rotation shaft is expanded radially outward.

Description

Slitter device

The present invention relates to a slitter device that performs a cutting process with a pair of rotary blades, and more specifically, a long flat plate member made of a wide metal thin plate, a metal foil, a magnetic tape, a resin film, a paper sheet, or the like in its longitudinal direction. It is related with the slitter apparatus which forms the elongate strip member which has a desired width | variety by cut | disconnecting along.

As this type of slitter device, a rotating shaft that includes a rotating shaft (arbor, spindle) that is rotatably supported and a disk-shaped (or ring-shaped) cutter that is fitted on the outer peripheral surface of the rotating shaft. An apparatus is known in which a long flat plate member which is an object to be cut is cut by a cutter to form a plurality of long strip plate members.

In the slitter device having such a configuration, in order to enable the cutter to be inserted into the rotary shaft, a minimum gap is provided between the outer peripheral surface of the rotary shaft and the insertion hole formed in the center of the cutter. It was necessary to provide. However, when the rotating shaft and the cutter are rotated, there is a possibility that a vertical runout in which the cutter swings in the radial direction of the rotating shaft may occur due to the slight gap. Therefore, when a cutter is fitted on the rotary shaft in the slitter device, a measure for preventing the vertical runout of the cutter is regarded as important.

For example, Patent Document 1 discloses a slitter device having a configuration in which the outer diameter of a rotating shaft into which a cutter is inserted is expanded as a method for eliminating the vertical deflection of the cutter.

In the slitter device of Patent Document 1, a liquid chamber formed inside a rotating shaft (spindle) and a screw-type sealing member for closing a liquid introduction port communicating with the liquid chamber are provided. The liquid is filled, and the sealing member is screwed into the liquid inlet, so that a liquid pressure corresponding to the screwing amount is generated in the liquid chamber. And the cutter unit is fixed to the rotating shaft by the rotating shaft bulging in the outer diameter direction by this hydraulic pressure.

JP 2000-135621 A

However, in the slitter device described in Patent Document 1, the entire interior of the rotating shaft is a liquid chamber, and the total volume is set to be very large. Therefore, since the compressibility of the liquid filled in the liquid chamber is greatly affected, it is difficult to maintain high dimensional accuracy, and the screwing amount for adjusting the liquid pressure as the liquid chamber increases in size As a result, there is a problem that the efficiency of the assembly work is deteriorated.

Moreover, since the strength of the rotating shaft itself is reduced when the entire interior is formed hollow like the rotating shaft of Patent Document 1, the types of objects to be cut are limited, There has been a problem that it is difficult to reduce the diameter of the rotating shaft.

On the other hand, as a means for solving the above-mentioned problem of vertical runout without expanding the outer diameter of the rotating shaft, the clearance between the outer peripheral surface of the rotating shaft and the insertion hole of the cutter is as close to zero as possible. It is conceivable to process the insertion hole. However, since such a solution requires very high accuracy in the processing of the insertion hole, the manufacturing cost may increase, and the insertion hole of the cutter is used as the rotation axis. There was a problem that much time and labor would be required in the process of inserting.

The present invention has been made in view of the above circumstances, and an object of the present invention is to easily fix a disk-shaped or donut-shaped cutter to a rotating shaft, and to reduce the diameter and height of the rotating shaft. An object of the present invention is to provide a slitter device that can be strengthened.

The object of the present invention is to provide a rotary plate supported rotatably, and a cutter fitted to the outer peripheral surface of the rotary shaft, and a long plate member by the cutter fixed to the rotating rotary shaft. Is a slitter device that forms a plurality of long strip members, wherein the rotary shaft is sealed with a solid shaft member and the shaft member inserted therein A cylindrical hollow outer cylinder member, and hydraulic pressure adjusting means disposed in a part of a path communicating with a gap between the outer cylinder member and the shaft center member, and the outer cylinder of the shaft center member. The part included in the member has a plurality of protrusion walls formed along the outer periphery of the side surface at predetermined intervals in the axial direction, and each liquid chamber partitioned by the plurality of protrusion walls includes the shaft. Communicating with each other through gaps between the core member and the plurality of protrusion walls, and the shaft member and the plurality of protrusions. Achieved by a slitter device characterized in that a liquid is filled in a gap with a wall and the liquid chamber, and the rotary shaft is expanded in an outer diameter direction by pressurizing the liquid by the liquid pressure adjusting means. Is done.

Further, the object of the present invention is to provide an oil sump portion in which the plurality of protrusion walls are formed by cutting out a part thereof at every equiangular interval in the circumferential direction, and the adjacent liquid chambers are This is effectively achieved by communicating with each other via the oil reservoir.

Furthermore, the object of the present invention is that the circumferential phase in which the oil reservoir is formed is shifted by a half of the equiangular interval with respect to the circumferential phase of the oil reservoir in the adjacent protruding wall. Is effectively achieved.

According to the slitter device according to the present invention, the rotating shaft into which the cutter is inserted and fixed includes a solid shaft member, and an outer cylinder member whose inside is sealed with the shaft member inserted. The liquid filling space between the shaft member and the outer cylinder member is partitioned into a plurality of liquid chambers by a plurality of protrusion walls formed on the side surface of the shaft member, and each liquid chamber Are communicated via a gap between the shaft member and the ridge wall. With such a configuration of the rotating shaft, the volume of the liquid filling space formed inside the rotating shaft can be kept small, so that the outer diameter can be expanded and reduced while maintaining sufficient strength and roundness of the rotating shaft. Can be realized. As a result, it is possible to reduce the diameter and size of the rotating shaft, to reduce the size of the cutter and the entire apparatus, and to reduce the cost. In addition, the rigidity of the rotating shaft can be increased, so that it is possible to improve the accuracy of the position adjustment of the cutter, which leads to improved width accuracy and homogenization of the cross-sectional shape, and the axial direction of the rotating shaft. It is possible to cope with the cutting of an object to be cut having a wide size by increasing the size, or to handle a high tensile strength material with a heavy load on the cutter. The conditions of the object to be cut can be expanded.

In addition, according to the slitter device according to the present invention, since the amount of liquid filled in the rotating shaft is small, the influence of the compression of the liquid can be suppressed, and the labor required for adjusting the hydraulic pressure can be reduced. Reduction and time reduction can be achieved.

It is a side view which shows the slitter apparatus which concerns on embodiment of this invention in a partial cross section. It is a side view which shows the rotating shaft of the slitter apparatus which concerns on embodiment of this invention in a partial cross section. It is a side view which expands and shows the principal part of the rotating shaft of FIG. FIG. 3 is a perspective view schematically showing a main part of the rotating shaft of FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The slitter device according to the present invention forms a long strip member having a predetermined width by cutting a long flat plate (sheet-like) member made of a wide metal thin plate or the like along its longitudinal direction.

FIG. 1 is a side view showing a slitter device according to an embodiment of the present invention in a partial cross section. In this figure, a slitter device 1 according to the present embodiment includes support portions 2 and 3 arranged on the left and right sides, and a pair of

parallel rotation shafts

4A and 4B that are rotatably supported via the support portions 2 and 3. And a disk-shaped cutter 5 fitted on the outer peripheral surfaces of the

rotary shafts

4A and 4B. Although not shown in the figure, the

rotation shafts

4A and 4B are connected to the rotation driving means on one end side (left side in the figure) of the support portion 2, respectively. And by this rotational drive means, rotating

shaft

4A, 4B mutually rotates at the same speed in the feed direction of a long flat plate member, and passes this long flat plate member between this rotating

shaft

4A, 4B, this long flat plate A member is cut | disconnected by the cutter 5, and the elongate strip member of a predetermined width is formed.

Here, although both the

rotating shafts

4A and 4B are connected to the rotation driving means, the present invention is not limited to this, and for example, only one of the rotating

shafts

4A and 4B is the rotation driving means. It may be connected to. Further, even when both of the

rotation shafts

4A and 4B are not connected to the rotation driving means, the long flat plate member to be cut is passed between the

rotation shafts

4A and 4B, and a propulsive force is directly applied thereto. Therefore, it is possible to cut in the same manner as described above. Furthermore, the rotational speeds of the rotating

shafts

4A and 4B do not necessarily have to be the same, and may be set such that the rotational speeds of the rotating

shafts

4A and 4B are different from each other according to the type of the object to be cut and the cutting conditions.

The support portion 2 includes

bearings

6A and 7A and

bearings

6B and 7B that rotatably support one end portions of the rotating shaft 4A and the rotating shaft 4B. The relative position of can be adjusted. Similarly, the support portion 3 includes a bearing 9A and a bearing 9B that rotatably support the other end portions of the rotary shaft 3A and the rotary shaft 3B. The position can be adjusted.

At one end of each of the rotating

shafts

4A and 4B between the support part 2 and the support part 3, locking parts (ridges) 11A and 11B projecting in the radial direction are formed, while the support part 2 and the support part 3, the

pressing members

12A and 12B capable of adjusting the preload in the axial direction are fixed to the other end portions of the respective rotating

shafts

4A and 4B with a screw. As in the case of the cutter 5, the

locking portions

11A and 11B, the pressing

members

12A and 12B, and the axial gaps of the cutters 5 inserted into the

rotary shafts

4A and 4B are arranged on the outer peripheral surfaces of the

rotary shafts

4A and 4B. The inserted hollow cylindrical spacer 13 is disposed, and the distance between the

cutters

5 and 5 is determined by the axial dimension of the spacer 13. When attaching the cutter 5 and the spacer 13 to the

rotary shafts

4A and 4B, first, the cutter 5 and the spacer 13 are inserted from the other end side of the

rotary shafts

4A and 4B from which the

pressing members

12A and 12B are removed, and then The

pressing members

12A and 12B are fixed to the other end portions of the

rotating shafts

4A and 4B, and the pressurization of the pressing members is adjusted, whereby the cutter 5 and the spacer 13 are moved to one end side (in the direction of arrow X in FIG. 1). It is pressed and fixed to the

rotating shafts

4A and 4B. The pressing members 12a and 12B are omitted, and a nut is screwed into a thread groove formed at the other end of the

rotary shafts

4A and 4B, and the spacer 13 on the other end side is directly pressed in the direction of the arrow X by the nut. Such a form may be adopted.

FIG. 2 is a side view showing a partial cross section of the rotating shaft of the slitter device according to the embodiment of the present invention. 3 is an enlarged side view showing the main part of the rotating shaft of FIG. 2, and FIG. 4 is a perspective view schematically showing the main part of the rotating shaft of FIG. .

As shown in FIG. 2, each of the rotating shafts 4 </ b> A and 4 </ b> B of the slitter device 1 according to this embodiment includes a solid shaft member 41, and a support portion 2 and a support portion 3 of the shaft member 41. A cylindrical hollow outer cylinder member 42 whose inside is sealed in a state where it is fitted and inserted in a corresponding portion, and a part of a path communicating with a gap between the shaft center member 41 and the outer cylinder member 42. Fluid pressure adjusting means 43. Drain plugs 44 and 45 for injecting / withdrawing liquid (oil or the like) filled in a gap between the shaft center member 41 and the outer cylinder member 42 are provided at the locking portion 11 and the other end of the shaft member 41. Among these, the flow path of the drain plug 44 of the locking portion 11 communicates with the hydraulic pressure adjusting means 43 described above. Since these

rotary shafts

4A and 4B are sealed in a state where the outer cylinder member 42 is fitted and inserted into the shaft member 41, finishing and assembling are performed. Compared to the above, it is possible to ensure high roundness and cylindricity.

As shown in FIG. 3, the hydraulic pressure adjusting means 43 includes a cylinder portion 46 formed as a part of a path communicating with a gap between the shaft center member 41 and the outer cylinder member 42, and an upper inner peripheral surface of the cylinder portion. The screw type piston member 47 is provided with a screw type piston member 47 that is screwed into the female screw groove formed on the outer cylindrical member 42, and the screw type piston member 47 is rotated in a state where the liquid is filled in the outer cylinder member 42. Thus, the liquid pressure of the liquid can be adjusted. Here, a screw plug type is applied as the hydraulic pressure adjusting means 43, but the present invention is not limited to this, and for example, a hydraulic pump or an electric piston is applied to adjust the hydraulic pressure. It may be configured such that the work for the above can be omitted. Further, as a structure for pushing the piston member, a cam mechanism can be applied instead of the screw mechanism.

As shown in FIG. 3 and FIG. 4, the portion of the shaft member 41 included in the outer cylinder member 42 has a plurality of ridge walls 48 formed along the outer periphery of the side surface at predetermined intervals in the axial direction. The gap between the shaft member 41 and the outer cylinder member 42 is partitioned into a plurality of liquid chambers by the protruding wall 48. Each ridge wall 48 has an oil reservoir portion 49 formed by cutting out a part thereof at approximately 180 ° in the circumferential direction, and the oil reservoir portion 49 is an oil reservoir of the adjacent ridge wall 48. It is formed so that the circumferential phase is shifted by approximately 90 ° with respect to the reservoir 49. Each of the liquid chambers defined by the plurality of ridge walls 48 includes a gap between the outer peripheral surface of the ridge wall 48 and the inner peripheral surface of the outer cylinder member 42 and an adjacent liquid chamber through an oil reservoir 49. They communicate with each other. The oil sump portions 49 of the ridge walls 48 may be formed at regular angular intervals in the circumferential direction, for example, three at intervals of 120 ° in the circumferential direction of the ridge walls 48 or 90 ° in the circumferential direction. Four pieces may be formed for each interval. Further, it is preferable that the circumferential phase of the oil reservoir 49 is shifted by ½ of the equiangular interval with respect to the circumferential phase of the oil reservoir 49 of the adjacent protruding wall 48. Therefore, when the oil sump portions 49 are formed at intervals of 120 ° (or 90 °) in the circumferential direction, the circumferential phase of the oil sump portions 49 is different from that of the oil sump portions 49 of the adjacent protruding wall 48. It is formed with a shift of 60 ° (or 45 °) with respect to the circumferential phase.

Next, operational effects of the slitter device 1 according to the present embodiment having the above-described configuration will be described.

First, at the time of manufacturing the

rotary shafts

4A and 4B, the drain plugs 44 and 45 fill the gaps between the shaft member 41 and the outer cylinder member 42 of the

rotary shafts

4A and 4B with liquid. At this time, each liquid chamber partitioned by the plurality of ridge walls 48 is not only a slight gap generated between the inner peripheral surface of the outer cylindrical member 42 and the outer peripheral surface of the ridge wall 48, but also the ridge walls 48. Even through an oil reservoir 49 formed by cutting out a part of the oil reservoir 49, it communicates with the adjacent liquid chambers, and the phase in the circumferential direction of the oil reservoir 49 is staggered as described above. Therefore, the liquid to be filled can be spread evenly and smoothly throughout the gap.

Then, the liquid filling into the gap between the shaft center member 41 and the outer cylinder member 42 is completed, and the outer peripheral surfaces of the

rotating shafts

4A and 4B with the drain plugs 44 and 45 sealed (that is, the outer peripheral surface of the outer cylinder member 42). ), The cutter 5 and the spacer 13 are mounted, and the screw type piston member 47 of the hydraulic pressure adjusting means 43 is rotated clockwise. Along with this rotation, the screw type piston member 47 is screwed into the cylinder portion 46, and the pressure of the filling liquid increases according to the screwing amount. And according to the raise of the pressure of this filling liquid,

rotating shaft

4A, 4B expand | swells in an outer-diameter direction. Thereby, it becomes possible to make a slight gap generated between the insertion hole of the cutter 5 and the spacer 13 and the outer peripheral surface of the

rotary shafts

4A and 4B as close to zero as possible. While being able to fix firmly to 4B, the vertical runout of the cutter 5 at the time of rotation can be suppressed. The liquid pressure adjustment of the filling liquid by the hydraulic pressure adjusting means 43 and the axial preload adjustment by the

pressing members

12A and 12B are not particularly limited, and for example, the pressure is alternately applied little by little. You may operate as follows.

On the other hand, when removing from the rotating

shafts

4A and 4B in order to replace the cutter 5, the threaded piston member 47 of the hydraulic pressure adjusting means 43 is rotated counterclockwise to release the pressure on the filling liquid. Thereby, the outer diameter of

rotating shaft

4A, 4B shrink | contracts, and the cutter 5 and the spacer 13 can be easily removed from

rotating shaft

4A, 4B. In the slitter device 1 according to the present embodiment, the liquid filled in the

rotating shafts

4A and 4B is not withdrawn throughout the operation period of the device in principle, but there is a need for liquid replacement or the like. The liquid in the

rotating shafts

4A and 4B can be extracted through the drain plugs 44 and 45.

As described above, according to the slitter device 1 according to the present embodiment, the

rotary shafts

4A and 4B into which the cutter 5 is inserted and fixed are inserted into the solid shaft member 41 and the shaft member 41. And a liquid-filling space between the shaft member 41 and the outer tube member 42 is formed on the side surface of the shaft member 41. The plurality of projecting walls 48 are partitioned into a plurality of liquid chambers. As a result, the volume of the liquid filling space formed inside the

rotary shafts

4A and 4B can be kept small, so that the hydraulic pressure adjusting means 43 is maintained while maintaining sufficient strength and roundness of the

rotary shafts

4A and 4B. Thus, the outer diameters of the

rotary shafts

4A and 4B can be easily expanded and reduced with a small screwing amount.

In addition, since the outer diameters of the

rotary shafts

4A and 4B can be expanded and reduced as described above, the minimum amount of play necessary for fitting the cutter 5 to the

rotary shafts

4A and 4B and the processing dimensions thereof are provided. Since the clearance between the outer diameter of the

rotary shafts

4A and 4B and the insertion hole of the cutter 5 can be minimized beyond the accuracy, the cutter 5 is firmly fixed to the

rotary shafts

4A and 4B and The shake can be effectively suppressed.

The embodiment of the present invention has been specifically described above, but the present invention is not limited to this, and can be appropriately changed without departing from the scope of the present invention.

In the slitter device 1 according to the above-described embodiment of the present invention, both shafts of the pair of

rotating shafts

4A and 4B are configured to be able to expand and contract their outer diameters. A slitter device in which at least one of the shafts is configured in this way is also included in the present invention.

Further, in the slitter device 1 according to the above-described embodiment of the present invention, the cutter 5 is fitted and fixed to both shafts of the pair of

rotating shafts

4A and 4B. For example, of the pair of

rotating shafts

4A and 4B, The cutter 5 is inserted and fixed only on one shaft, and a cylindrical jig corresponding to a gutter plate is inserted and fixed so as to contact the blade edge of the cutter 5 at a position facing the cutter 5 on the other shaft. A slitter device in which at least one of the rotating shafts is configured to be able to expand and contract the outer diameter as described above is also included in the present invention.

Furthermore, in the slitter device 1 according to the above-described embodiment of the present invention, the pair of

rotating shafts

4A and 4B is provided. However, the present invention includes a single

rotating shaft

4A and 4B that is configured in the same manner as the rotating

shafts

4A and 4B. Also included is a slitter device having only a rotating shaft. In this case, it is arranged that the tooth tip of the cutter 5 fitted and fixed to the single rotation shaft is in contact with a member functioning as a plate, and the object to be cut transferred along the surface of the plate member is the rotation shaft. By passing between the cutter and the plate member, the object to be cut is cut in the same manner as the slitter device 1 described above.

DESCRIPTION OF SYMBOLS 1 ...

Slitter apparatus

4A, 4B ... Rotating shaft 5 ... Cutter 41 ... Axial member 42 ... Outer cylinder member 43 ... Hydraulic pressure adjusting means 48 ... Projection wall 49 ..Oil sump

Claims

A rotating shaft supported rotatably, and a cutter fitted on the outer peripheral surface of the rotating shaft, and a long plate member is cut by the cutter fixed to the rotating shaft, A slitter device for forming a long strip member,
The rotating shaft includes a solid shaft member, a hollow cylindrical outer tube member sealed with the shaft member fitted therein, and a gap between the outer tube member and the shaft member. A hydraulic pressure adjusting means disposed in a part of a path communicating with
The portion included in the outer cylinder member of the shaft center member has a plurality of projecting walls formed along the outer periphery of the side surface at predetermined intervals in the axial direction.
Each liquid chamber defined by the plurality of ridge walls communicates with each other through a gap between the shaft member and the plurality of ridge walls, and
The rotary shaft is expanded in the outer diameter direction by filling the liquid into the gap between the shaft member and the plurality of protruding walls and the liquid chamber, and pressurizing the liquid with the liquid pressure adjusting means. A slitter device characterized by that.
The plurality of ridge walls have an oil sump portion formed by cutting out a part thereof at equal circumferential intervals in the circumferential direction, and
The slitter device according to claim 1, wherein the adjacent liquid chambers communicate with each other via the oil reservoir.
3. The slitter device according to claim 2, wherein a circumferential phase in which the oil reservoir is formed is deviated by ½ of the equiangular interval with respect to a circumferential phase of the oil reservoir of the adjacent protruding wall. .
The said rotating shaft is formed in the said axial center member by shrink-fitting the said outer cylinder member, Then, the outer peripheral surface of the said outer cylinder member is formed by grinding | polishing. Slitter device.