JP6189719B2 - 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. It is related with the slitter apparatus which attached the effective spacer used for the slitter apparatus for cut | disconnecting to the width | variety of this.

An example of the slitter device will be described with reference to FIG. FIG. 14 is a schematic view of a slitter device having an upper cutter shaft and a lower cutter shaft.
In the slitter device 200, the upper cutter shaft 1 to which the upper cutter 3 is attached and the lower cutter shaft 2 to which the lower cutter 4 is attached are provided in parallel, and are fed between the upper cutter 3 and the lower cutter 4. The strip-shaped member to be cut (not shown) is cut into a plurality of narrow strips along the length direction.

As shown in FIG. 14, the upper cutter shaft 1 and the lower cutter shaft 2 are rotatably supported by bearings 7 on the upper cutter bearing boxes 5a and 5b and the lower cutter bearing boxes 6a and 6b, respectively.
A cylindrical lower blade 4 having a thickness is mounted on the lower cutter shaft 2 via a cylindrical spacer 8 having a predetermined width, and a shaft nut screwed into the shaft flange 2b and the screw portion 2a. The lower cutter shaft 2 is fixed at a predetermined position by 30.
On the other hand, a moving holder 40 is fitted to the upper cutter shaft 1. The moving holder 40 includes a holder main body 31 and an upper blade mounting block 32 in which a disc spring 33 and a thin ring-shaped upper blade 3 are mounted on the upper blade mounting portion 34. The upper blade mounting block 32 is fixed to the holder body 31 with screws, and the upper blade 3 is initially biased with a predetermined pressure by a disc spring 33. The moving holder 40 is moved in the axial direction of the upper cutter shaft 1 so that the cutting edge of the upper blade 3 and the cutting edge of the lower blade 4 are brought into contact with each other at an initial pressure or higher, and the moving holder 40 is moved. The upper cutter shaft 1 is fixed with screws 35.
Then, when rotation in the cutting direction is given to the upper cutter shaft 1 and the lower cutter shaft 2 by a driving means (not shown), a band-shaped member to be cut between the upper cutter 3 and the lower cutter 4 has a plurality of cut members. It is designed to be cut into strips.
In this case, the combined width W1 of the lower blade 4 and the width W2 of the spacer become the cutting width, and the width W1 of the lower blade 4 and the width W2 of the spacer are set so that the cutting width W does not vary depending on the cutting location. Both are machined with high accuracy with dimensional tolerances on the order of several tens of microns to several microns.

By the way, in the slitter apparatus 200 as described above, there are cases where the cutting width of the band-shaped member to be cut must be frequently changed in units of several millimeters or 0.1 millimeters in accordance with customer requirements. In this case, in order to change the cutting width, it is necessary to replace the spacer 8 with a different width. However, since the conventional spacer 8 is formed in an integral ring shape, the spacer 8 can be replaced with a lower cutter bearing box. 6b should be removed to keep the lower cutter shaft 2 in a cantilever state, or in some cases, the lower cutter shaft 2 must be removed from the slitter device 200 and the spacer 8 together with the lower cutter 4 must be removed. It takes a lot of time, and it is heavy when the blade shaft and the lower blade and spacer incorporated in the blade shaft are combined, and it is difficult to work with the lower blade shaft 2 cantilevered or removed. was there.

In order to improve it, the spacer shown in Document 1 and a slitter device using the spacer are disclosed.
The two-divided spacer can be divided by moving in the axial direction and cannot be divided in the radial direction. Thus, if it is desired to change the cutting width, loosen the nut 30 for the shaft until the split spacer moves in the axial direction so that it can be split, remove the split spacer, and replace it with a separately prepared spacer with a different width. Therefore, it is not necessary to cantilever or remove the lower cutter shaft 2.
Also in this case, the width of the spacer can be processed with high accuracy, and the cutting width can be prevented from varying depending on the cutting location.

JP 2008-040771 A

However, in this case, in order to change the cutting width, the currently attached spacer 8 must be removed and replaced with a spacer 8 suitable for another cutting width. A method of adding spacers 8 having different widths is also conceivable, but in any case, when the number of cutting strips is large or when there are many types of cutting widths, the corresponding spacers must be prepared. Therefore, there was a problem that the cost increased. In addition, if the types of cutting widths are increased, there is a problem that the spacers having different widths must be managed.

The present invention has been made in view of the drawbacks of the slitter device having the conventional spacers as described above, and can be cut to a predetermined width while maintaining the accuracy of the spacers, so that the quality can be stably maintained. It is another object of the present invention to provide a slitter device to which a spacer is attached that can be easily changed in cutting width and can reduce costs.

In order to solve the above-mentioned problem, the present invention provides a slitter device that attaches a plurality of blades and at least one spacer between the blades to a blade shaft and cuts a member to be cut into a plurality of strips. The spacer includes a spacer body, and a surface of the spacer body facing the blade is formed with a plurality of through holes on a concentric circle parallel to the center line of the blade axis, and at least one of the through holes is formed in the through hole. Spacer pins having different lengths are provided so as to be movable along the through-holes, and one surface of the cutter facing the spacer body has a contact portion with which the spacer pins of the same length contact each other. An escape portion for escaping the spacer pin that is not in contact with the contact portion, and the cutter and the spacer body are rotated relative to each other around the cutter axis so that the contact portions have different lengths. Of the space It is to contact the pins, the slitter apparatus which can be varied the width of the spacer.

By making the spacer of the slitter device as described above, the cutting width can be easily changed without removing the spacer.

The width of the spacer is the length of the spacer pin. As a result, the length of the spacer pin can be easily processed with high accuracy, so that the band-shaped member to be cut can be made to have a predetermined cutting width while maintaining the width dimension and the state of the cut edge with high accuracy. Can also be suppressed. In addition, part or all of the mounted spacer pins can be removed from the spacer body and easily replaced with spacer pins of different lengths, so that the cutting width can be changed in a wider range. .

Further, in a slitter device that attaches a plurality of blades and at least one or more spacers between the blades to the blade shaft and cuts a member to be cut into a plurality of strips, at least one or more of the spacers are Two blocks of a first block and a second block that can rotate around the cutter axis along the center line of the cutter axis are provided, and a surface of the first block facing the second block is concentrically arranged. A plurality of through holes parallel to the center line of the cutter shaft are formed, and at least one spacer pin having a different length is provided in the through hole so as to be movable along the through hole. A surface of the two blocks facing the first block is provided with a contact portion where the spacer pin of the same length contacts, and a clearance portion for releasing the spacer pin which is not in contact with the contact portion. And said One of the blocks that abut the said spacer pins of the contact unit different lengths by relatively rotated around blade shaft, a slitter apparatus that can change the width of the spacer.

By making the spacer as described above, it is not necessary to provide an extra contact portion or escape portion on the blade itself that requires re-polishing or replacement due to wear, so that it can be used as it is, so that it has a more preferable configuration. Become.

The width of the spacer is the sum of the width including the contact portion of the second block and the length of the spacer pin contacting the contact portion. As a result, the length of the spacer pin can be easily processed with high accuracy, so that the band-shaped member to be cut can be made to have a predetermined cutting width while maintaining the width dimension and the state of the cut edge with high accuracy. Can also be suppressed. Further, since the spacer pin can be easily replaced with a spacer pin having a different length, the cutting width can be changed in a wider range.

In addition, a through hole parallel to the center line of the cutter shaft is formed in the second block, and a receiving pin is provided in the through hole so as to be movable along the through hole. The surface of the receiving pin is in contact with the spacer pin. As a result, the length of the receiving pin can be easily processed with high accuracy, so that the band-shaped member to be cut can be made to have a predetermined cutting width while maintaining the width dimension and the state of the cut edge with high accuracy. Can also be suppressed. In addition, since the receiving pin can be easily replaced with a receiving pin having a different length, the cutting width can be changed in a wider range.

Further, the width of the spacer is determined by the sum of the length to the contact portion of the receiving pin and the length of the spacer pin that contacts the receiving pin. Thereby, the accuracy of the width of the spacer is determined only by the accuracy of the lengths of the spacer pin and the receiving pin, and an extra processing accuracy of the support block and the receiving block is not required.

According to the present invention, the spacer can be cut to a predetermined width while maintaining accuracy, the quality can be kept stable, the cutting width can be easily changed, and the cost can be further reduced. be able to.

The perspective view for demonstrating the cutter (lower blade) and spacer which concern on 1st Example of this invention. The CC arrow view of FIG. 1 and the CC arrow view of FIG. FIG. 2A is a development view of the blade (lower blade) and the spacer shown in FIG. 1, (a) is a diagram when the width of the spacer is maximized, and (b) is a diagram when the width of the spacer is minimized. The perspective view for demonstrating the spacer which concerns on the 2nd Example of this invention. FIG. 5A is a development view of the spacer shown in FIG. 4, and FIG. 5A is a diagram when the width of the spacer is maximized, and FIG. 5B is a diagram when the width of the spacer is minimized. The BB arrow line view of FIG. 4 for demonstrating the 2nd block which concerns on the 2nd Example of this invention. The BB arrow line view of FIG. 4 for demonstrating the 2nd block which concerns on the 2nd Example of this invention. The perspective view for demonstrating the spacer which concerns on the 3rd Example of this invention. FIG. 9A is a development view of the spacer shown in FIG. 8, and FIG. 9A is a diagram when the width of the spacer is maximized, and FIG. 9B is a diagram when the width of the spacer is minimized. The BB arrow line view of FIG. 8 for demonstrating the 2nd block which concerns on the 3rd Example of this invention. The perspective view for demonstrating the spacer which concerns on the 4th Example of this invention. 11A is a development view of the spacer shown in FIG. 11, and FIG. 11A is a diagram when the spacer width is maximized, and FIG. 11B is a diagram when the spacer width is minimized. The figure for demonstrating the method to hold | maintain the spacer pin or receiving pin of the spacer which concerns on this invention Schematic for demonstrating a slitter apparatus. Schematic for demonstrating the procedure which changes the cutting width of a slitter apparatus.

Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. In the present embodiment, as shown in FIG. 14, the slitter device will be described in the case where the lower cutter shaft 2 to which the lower cutter 4 is attached is provided with the spacer 8.
As shown in FIG. 1, the spacer 8 includes a spacer main body (hereinafter referred to as a support block) 9, and one surface 9 a facing the lower blade 4 of the support block 9 is concentrically arranged on the cutter axis center line. A plurality of through holes 11 parallel to A are formed. In this embodiment, as shown in FIG. 2, 24 through holes 11 are formed on the concentric circles at equal intervals of 15 °.
As shown in FIG. 3, eight spacer pins 12 (12a, 12b, 12c, 12d, 12e, 12f, 12g, 12h) are passed through the spacer pins 12 so that the lengths adjacent to each other from the bottom gradually increase as shown in FIG. It is movably inserted along the hole 11. In this embodiment, as shown in FIG. 3, one surface of all the spacer pins 12 and the other surface 9 b facing the lower blade 4 of the support block 9 are flush with each other.
Of the spacer pins 12, the minimum length of the spacer pins 12 a is set to Smin, and the width of the support block 9 is set to L 1. By setting Smin ≧ L 1, all the spacer pins 12 protrude from the support block 9. Like to do.
In addition, as shown in FIG. 2, eight spacer pins 12 (12a, 12b, 12c, 12d, 12e, 12f, 12g, 12h) are defined as one pin block 13, and a total of three pin blocks 13 at 120 ° intervals. It is provided at the place.
In addition, the pins of the same length in the three pin blocks 13 are processed with high accuracy so that the error of the length is from micron to submicron.

Next, the lower blade 4 has a blade edge 4a formed on one of the outer peripheral edges. Also, the lower blade 4 is provided with a total of three contact portions 14 that are in contact with the spacer pins 12 of the same length of each pin block 13 in the support block 9 at intervals of 120 °, and the other portions are An escape portion 16 is provided so that the spacer pin 12 does not contact. Further, as shown in FIG. 3, the protrusion length U of the contact portion 14 is expressed as follows: Smax is the length of the spacer pin 12h having the maximum length, and Smin is the length of the spacer pin 12a having the minimum length. 3B between the maximum length spacer pin 12h and the lower blade 4 when the contact portion 14 contacts the tip of the minimum length spacer pin 12a so that ≧ Smax−Smin. As shown, the gap V is set to satisfy V ≧ 0.
Further, the error of the width T1 up to the three contact portions 14 of the lower blade 4 is processed with high accuracy so as to be in units of micron to submicron.
In addition, the protrusion 15 for forming the contact part 14 is integrally fixed to the lower blade 4 with an adhesive or a bolt (not shown).

Thereby, the width of the spacer 8 can be changed according to the number of different spacer pins 12 from the minimum width Smin to the maximum width Smax.
In addition, the width of the spacer 8 can be improved by processing the length of the spacer pin 12 with high accuracy, and the processing is easy.
Further, in this embodiment, the spacer pins 12 having the same length are in contact with the contact portion 14 of the lower blade 4 at three locations at equal intervals in the circumferential direction, so that the width of the spacer can be stably maintained.

Next, a second embodiment of the present invention will be described with reference to FIGS.
As shown in FIG. 4, the spacer 8 includes a cylindrical first block (hereinafter referred to as a support block) 9 and a cylindrical second block (hereinafter referred to as a receiving block) along the cutter axis center line A. And 10) two blocks.

A plurality of through holes 11 are formed on the surface 9a of the support block 9 facing the receiving block 10 along the direction of the cutter axis center line A on a concentric circle. In this embodiment, as in the first embodiment, 24 through holes 11 are formed on the concentric circles at 15 ° equal intervals as shown in FIG.
As shown in FIG. 5, eight spacer pins 12 (12a, 12b, 12c, 12d, 12e, 12f, 12g, and 12h) are passed through the spacer pins 12 so that the lengths adjacent to each other are gradually increased from the bottom. It is movably inserted along the hole 11. In this embodiment, as shown in FIG. 5, the surfaces of all the spacer pins 12 that do not face the receiving block 10 and the surfaces 9 b of the support block 9 that do not face the receiving block 10 are flush with each other.
Of the spacer pins 12, the minimum length of the spacer pins 12 a is set to Smin, and the width of the support block 9 is set to L 1. By setting Smin ≧ L 1, all the spacer pins 12 protrude from the support block 9. Like to do.
Also in this embodiment, as in the first embodiment, eight spacer pins 12 (12a, 12b, 12c, 12d, 12e, 12f, 12g, 12h) are used as one pin block 13 as shown in FIG. The pin blocks 13 are provided at a total of three locations at intervals of 120 °.
In addition, the pins of the same length in the three pin blocks 13 are processed with high accuracy so that the error of the length is from micron to submicron.

Next, the receiving block 10 is provided with a total of three contact portions 14 that are in contact with the tip portions of the spacer pins 12 of the same length of each pin block 13 at intervals of 120 °, and the other portions are An escape portion 16 is provided so that the spacer pin 12 does not contact. The protrusion length U of the contact portion 14 is U ≧ Smax−Smin, where Smax is the length of the spacer pin 12h having the maximum length and Smin is the length of the spacer pin 12a having the minimum length. As shown in FIG. 5B, when the abutting portion 14 abuts on the tip of the spacer pin 12a having the minimum length, a gap V is formed between the spacer pin 12h having the maximum length and the receiving block 10 as shown in FIG. V ≧ 0 is set.
Further, the dimensional accuracy of the width T1 up to the contact portion 14 of the receiving block 10 is processed with high accuracy by simultaneous processing or the like so that the three places are in units of micron to submicron.
A cylindrical projection 15 for forming the contact portion 14 is integrally fixed to the receiving block 10 with an adhesive or a bolt (not shown).

Thereby, the width of the spacer 8 can be changed according to the number of spacer pins 12 having different lengths from the minimum width W2min = T1 + Smin to the maximum width W2max = T1 + Smax.
Further, the width of the spacer 8 can be improved by accurately processing the length from Smin to Smax of the spacer pin 12 and the width T1 from the contact portion 14 of the receiving block 10. Is also easy.
Further, in the present embodiment, the spacer pins 12 having the same length are in contact with the contact portion 14 of the receiving block 10 at three positions at equal intervals in the circumferential direction, so that the width of the spacer can be stably maintained.

As shown in FIG. 4, the receiving block 10 is integrally provided with a cylindrical protruding portion 15 and the surface other than the protruding portion is used as a relief portion 16, but this is shown in FIG. As shown in FIG. 6 (a), the surface facing the support block 9 may be a contact portion 14 and the relief portion 16 may be a notch groove, or as shown in FIG. The facing surface may be a contact portion 14 and the escape portion 16 may be a long hole. As shown in FIG. 6C, the surface facing the support block 9 is a contact portion 14 and the escape portion 16 is a spacer. It is good also as an independent through-hole corresponding to every pin, or a blind hole (counterbore hole).
Further, as shown in FIGS. 7 (a) to 7 (c), a locking hole 101 into which the spacer pin 12 can be inserted is formed in the receiving block 10, and the bottom surface thereof is used as a contact portion 14, thereby supporting the support block 10. The circumferential positioning of the block 9 and the receiving block 10 can be ensured.

Next, a third embodiment will be described with reference to FIGS.
Since the support block 9 and the spacer pin 12 are the same as those in the second embodiment, the description thereof is omitted.

A through hole 17 parallel to the center line A of the cutter shaft is formed in the receiving block 10, and a receiving pin 18 is provided in the through hole 17 so as to be movable along the through hole 17. The abutting portion 14 is constituted by a surface that abuts the spacer pin 12 of the receiving pin 18 and is provided at a total of three locations at intervals of 120 ° as in the second embodiment. In this embodiment, as shown in FIG. 9, the surface of the receiving pin 18 that does not face the support block 9 and the surface 10 b of the receiving block 10 that does not face the support block 9 are flush with each other.

Further, the protruding length U of the receiving pin 18 from the receiving block 10 is the maximum length when U ≧ Smax−Smin and the receiving pin 18 contacts the spacer pin 12a having the minimum length, as in the first embodiment. The gap V between the spacer pin 12h and the receiving block 10 is set so that V ≧ 0 as shown in FIG.

Thereby, the width of the spacer 8 is determined by the sum of the length T2 to the contact portion 14 of the receiving pin 18 and the length of the spacer pin 12 that contacts the receiving pin 18, and the minimum width is the maximum width from W2min = T2 + Smin. Can be changed according to the number of spacer pins 12 until W2max = T2 + Smax.
Further, since the width of the spacer 8 is determined by the lengths of the spacer pin 12 and the receiving pin 18, it is only necessary to process the length of the spacer pin 12 and the receiving pin 18 with high accuracy. It becomes possible to maintain the accuracy of the width of the spacer 8 in units of microns.
Also in this embodiment, since the spacer pins 12 having the same length abut on the receiving pins 18 at three locations at equal intervals in the circumferential direction, the width of the spacer can be stabilized as in the first and second embodiments. Can be maintained.

The receiving pin 18 may have a flat end surface as shown in FIG. 10 (a) as shown in FIG. 8B, but as shown in FIG. 10 (b). The receiving pin 18 may be formed with a locking hole 102 through which the spacer pin 12 can be inserted, and the bottom surface thereof may be used as the contact portion 14, thereby positioning the support block 9 and the receiving block 10 in the circumferential direction. Can be sure.

Next, a fourth embodiment will be described with reference to FIGS.
The spacer pin 12 inserted into the support block 9 is different from the spacer pin 12 in the first to third embodiments, and the length Smax of the spacer pin 12h having the maximum length is the amount of pull-in than the width of the support block 9. It is shortened by Y. The other spacer pins 12 are inserted such that the lengths of adjacent spacer pins become shorter step by step as shown in FIG.

The abutting portions 14 of the receiving block 10 are provided at a total of three locations at intervals of 120 °, as in the third embodiment configured by receiving pins 18 inserted into through holes 17 formed in the receiving block 10. Yes. The difference from the third embodiment is that the receiving pin 18 comes into contact with the spacer pin 12 in a state of entering the through hole 11 of the support block 9.

The protruding length U of the receiving pin 18 is U ≧ Y + (Smax−Smin), and when the receiving pin 18 contacts the minimum length spacer pin 12a, the maximum length of the spacer pin 12h and the receiving block 10 In the meantime, as shown in FIG. 12B, the gap V is set such that V ≧ 0.

Thereby, the width of the spacer 8 can be changed according to the number of the spacer pins 12 from the minimum width W2min = T2 + Smin to the maximum width W2max = T2 + Smax.
Further, since the width of the spacer 8 is determined by the length of the spacer pin 12 and the receiving pin 18, the length of the spacer pin 12 and the receiving pin 18 only needs to be processed with high accuracy. An accuracy of 8 widths can be maintained in microns.
Further, since the spacer pins 12 having the same length are in contact with the receiving pins at three locations at equal intervals in the circumferential direction, the width of the spacer can be stably maintained.
Further, since the receiving pin 18 is inserted into the through hole 17, the circumferential positioning of the support block 9 and the receiving block 10 can be ensured.

Next, the procedure for changing the cutting width will be described with reference to FIGS.
First, it is necessary to make the gap between the cutting edge of the upper blade and the cutting edge of the lower blade from the contact state. As shown in FIG. 14, the upper bearing housing 5a and the lower bearing housing 6a and the upper bearing housing 5b and the lower bearing housing 6b are respectively fixed by loosening fixing bolts (not shown) for fixing the upper bearing housing 5a and the lower bearing housing 6b. This is possible by lifting the spacer and holding a spacer between the lower bearing boxes 6a and 6b.

Next, when it is desired to increase the cutting width, as shown in FIG. 15, the shaft nut 30 is loosened and moved so that the gap L is equal to or larger than the current cutting width (width to be expanded × number of cutting strips). Let In this state, the support block 9 or the receiving block 10 is rotated to bring the spacer pin 12 having a length necessary for widening the cutting width into contact with the contact portion of the receiving block. After this operation is performed on all the spacers, the shaft nut 30 is tightened to complete the operation of changing the cutting width on the lower cutter shaft 2 side. Thereafter, the moving holder 40 of the upper cutter shaft 1 is moved and the cutting edge changing operation is completed by bringing the cutting edge of the upper cutting tool 3 into contact with the cutting edge of the lower cutting tool 4 with a predetermined pressure.

As described above, according to the slitter device of the present embodiment, the cutting width can be easily changed. Further, since it is only necessary to precisely process the length of the spacer pin 12 and the receiving block or the length of the receiving pin, the band-shaped member to be cut is easily cut to a predetermined width while maintaining the width dimension with high accuracy. Can keep its quality stable. Moreover, cost can be suppressed.
Furthermore, since part or all of the spacer pins 12 can be easily changed to ones having different lengths, or the receiving pins 18 can be easily changed to ones having different lengths, the range of changeable cutting widths can be increased. Will be able to.

In the embodiment of the present invention, the length of the eight spacer pins 12 is increased stepwise from 12a to 12h, and the pin block 13 has a total of three at 120 ° intervals. It is an exemplification for explaining the invention, and the scope of the present invention is not limited only to these examples, and it goes without saying that various modifications can be made within the scope of the present invention.

In addition, the spacer pin 12 and the receiving pin 18 can be moved to the through hole 11 and the through hole 17 from the first embodiment to the fourth embodiment. However, as shown in FIG. A counterbore hole 19 is formed in the through hole 17 of the receiving block 10, and an elastic ring 20 is inserted into the counterbore hole 19 so as to come into pressure contact with the spacer pin 12 and the receiving pin 18 with a predetermined pressure. The pin 18 may not be dropped from the through hole.

In the embodiment of the present invention, as shown in FIGS. 3, 5, 9, and 12, the surfaces of all the spacer pins 12 that do not face the receiving block 10, and the support block 9 that does not face the receiving block 10. The surface 9b is flush with each other, and as shown in FIGS. 9 and 12, the surface of the receiving pin 18 not facing the support block 9 and the surface 10b of the receiving block 10 not facing the support block 9 are flush with each other. Although described, it is an illustration for explaining the present invention, and the scope of the present invention is not limited only to those examples.

Further, in the embodiment of the present invention, as shown in FIG. 14 as an example of a slitter device, a case where a cylindrical lower blade 4 is mounted and a rotatable lower cutter shaft 2 is provided with a spacer 8 has been described. However, this is only an example for explaining the present invention. For example, a non-rotating blade shaft may be a blade having a rectangular cross section at right angles, and the scope of the present invention is not limited to the above-described embodiments.

1 Upper cutter axis
2 Lower cutter shaft 2a Threaded portion 2b Shaft flange 3 Upper cutter 4 Lower cutter 5a, 5b Upper cutter bearing box 6a, 6b Lower cutter bearing box 7 Bearing 8 Spacer 9 Support block 10 Receiving block 11 Through hole 12 Spacer pin 13 Pin block 14 Contact portion 15 Protrusion portion 16 Escape portion 17 Through hole 18 Receiving pin 19 Counterbore hole 20 Elastic ring 30 Shaft nut 40 Moving holder 31 Holder body 32 Upper blade mounting block 33 Belleville spring 34 Upper blade mounting portion 35 Screw 101 Stop hole 102 Lock hole

Claims (6)

In a slitter device that attaches a plurality of blades and at least one or more spacers between the blades to a blade shaft and cuts a member to be cut into a plurality of strips,
The spacer includes a spacer body, and a plurality of through holes parallel to a center line of the blade axis are formed on a concentric circle on a surface of the spacer body facing the blade.
In the through hole, at least one spacer pin having a different length is provided movably along the through hole,
On one surface of the cutter facing the spacer body, an abutting portion with which the spacer pin of the same length abuts,
An escape portion for escaping the spacer pin that is not in contact with the contact portion;
The width of the spacer can be changed by rotating the cutter and the spacer main body relatively around the cutter axis so that the contact portion contacts the spacer pins of different lengths. A slitter device characterized by that.
The slitter device according to claim 1, wherein a width of the spacer is determined by a length of the spacer pin. In a slitter device that attaches a plurality of blades and at least one or more spacers between the blades to a blade shaft and cuts a member to be cut into a plurality of strips,
The at least one or more spacers include two blocks of a first block and a second block that are rotatable around the cutter axis along a center line of the cutter axis,
On the surface of the first block facing the second block, a plurality of through holes parallel to the center line of the blade axis are formed on a concentric circle,
In the through hole, at least one spacer pin having a different length is provided to be movable along the through hole,
On the surface of the second block facing the first block, an abutting portion with which the spacer pin of the same length abuts,
An escape portion for escaping the spacer pin that is not in contact with the contact portion;
The width of the spacer can be changed by rotating the two blocks relatively around the cutter axis so that the contact portion contacts the spacer pins of different lengths. Characteristic slitter device. 4. The slitter device according to claim 3, wherein a width of the spacer is determined by a sum of a width of the second block to the contact portion and a length of the spacer pin that contacts the contact portion. A through hole parallel to the center line of the cutter shaft is formed in the second block, and a receiving pin is provided in the through hole so as to be movable along the through hole. The slitter device according to claim 3 or 4, wherein the surface of the pin is a surface that comes into contact with the spacer pin. 6. The slitter device according to claim 5, wherein the width of the spacer is determined by the sum of the length to the contact portion of the receiving pin and the length of the spacer pin that contacts the receiving pin.

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