JPH08108392A - Positioning fine adjustment device of spacerless slitter cutter - Google Patents

Abstract

PURPOSE: To provide a positioning fine adjustment device of a specerless slitter cutter by which a fine adjustment of an installed slitter cutter can be comparatively simply made. CONSTITUTION: This is a positioning fine adjustment device 10 of a slitter cutter 11 installed on an arbor shaft 13 through a cutter holder 12 fixable to the arbor shaft 13. A hooking fastening cylinder body part 22 whose outside diameter is smaller than an inside diameter of the slitter cutter 11 and has a space part 27 whose inmost side is diametrically expanded more than the inside part side, is integrally arranged in one of the cutter holder 12 on the installing side of the slitter cutter 11, and a boss 15 having a male screw 32 outside is fixed to the arbor shaft 13, and an adjusting nut 17 having a hooking fastening projection 34 to be fitted in a space part 27, is screw-fitted to the boss 15.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spacerless slitter blade positioning fine adjustment device used when adjusting the clearance or the like of a slitter blade fixed by hydraulic means without using a cylindrical spacer or the like on the arbor shaft. Regarding

[0002]

2. Description of the Related Art A wide steel plate is cut into pieces of a suitable width to make a product. To cut the steel plate, arbor shafts with a plurality of slitter blades are arranged vertically and the passing steel plate is sheared. Cutting by force. Then, when the width of the product to be divided changes, it is necessary to change the mounting position of the slitter blade attached to the arbor shaft, and a method for positioning the slitter blade by mounting a positioning spacer on the arbor shaft, There is a system in which a hydraulic holder is provided with an arbor shaft or a cutter holder to which a slitter knife is attached, and when the cutter is fixed, the hydraulic holder is fixed to the arbor shaft using the hydraulic expander mechanism. The method of adjusting the slitter blade using the spacer is heavy in the spacer, it is a heavy labor in the replacement, and the spacer must be replaced every time the product width is divided, and the number of the spacers is changed. Since it is necessary to prepare a large amount, a fixing method using a hydraulic expansion / contraction mechanism tends to be widely adopted in recent years.

[0003]

However, even in the fixing method using the hydraulic expansion / contraction mechanism, the total weight of the slitter blade and the blade holder for mounting the slitter blade is about 30.
The weight is about kg. On the other hand, when a steel plate having a thickness of 1 mm is slit, the clearance of the upper and lower slitter blades needs to be attached to the arbor shaft with an accuracy of about ± 0.1 mm, and the heavy object is fixed to the arbor shaft with this accuracy. Is extremely labor-intensive labor. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a spacerless slitter blade positioning fine adjustment device that allows relatively fine adjustment of a mounted slitter blade.

[0004]

A method according to the above-mentioned object.
The spacerless slitter blade positioning fine adjustment device described is a slitter blade positioning fine adjustment device attached to the arbor shaft via a blade holder that can be fixed to the arbor shaft, wherein the slitter blade mounting side blade tool One of the holders is integrally provided with a latching cylinder portion having an outer diameter smaller than the inner diameter of the slitter blade and having a space portion on the inner back side whose diameter is enlarged from the inner end side, and which is provided on the arbor shaft. A boss having a male screw formed on the outside is fixed, and an adjusting nut having a hooking projection that fits into the space is screwed onto the boss. The spacer fine slitter blade positioning fine adjustment device according to claim 2 is the positioning fine adjustment device according to claim 1, wherein a male screw is formed on the outer side of the latching cylinder portion, and the male screw is formed on the outer side. A nut for mounting a tubular metal fitting to which a rubber ring having a diameter smaller than that of the slitter blade is fixed is screwed.

[0005]

In the spacerless slitter blade positioning fine adjustment device according to claim 1 or 2, the outer diameter of the slitter blade is smaller than the inner diameter of the slitter blade on one side of the blade holder on which the slitter blade is mounted, and the inner depth side thereof is provided. Is integrally provided with a retaining cylinder portion having a space portion whose diameter is expanded from the inner end side, and a boss having a male screw formed on the outside is fixed to the arbor shaft, and the boss is fitted into the space portion. Since the adjusting nut having the hooking projection is screwed, the hooking projection can push and move the blade holder slightly by advancing the adjustment nut. Further, when the adjusting nut is moved to the front side, the locking projection pushes the front side portion of the locking tubular body portion, whereby the blade holder can be slightly moved to the front side. Particularly, in the spacerless slitter blade positioning fine adjustment device according to claim 2, a male screw is formed on the outer side of the retaining tubular body portion, and a nut is screwed into this portion to fix the rubber ring to the tubular shape. The metal fittings can be attached freely.

[0006]

Embodiments of the present invention will now be described with reference to the accompanying drawings to provide an understanding of the present invention. 1 is a partial sectional view of a spacer fine slitter blade positioning fine adjustment device according to a first embodiment of the present invention, FIG. 2 is a partial sectional view in a coaxial direction, and FIG. 3 is a second sectional view of the present invention.
FIG. 6 is a partial cross-sectional view of the spacerless slitter blade positioning fine adjustment device according to the embodiment of FIG.

As shown in FIGS. 1 and 2, a spacerless slitter blade positioning fine adjustment device 10 according to a first embodiment of the present invention includes a blade holder 12 to which a slitter blade 11 is attached and an arbor shaft 13. It has a taper sleeve 14 to be attached, a boss 15 and an attachment nut 16 attached to this, and an adjusting nut 17 screwed onto the boss 15. These will be described below.

The blade holder 12 includes an arbor shaft 13
A central hole 18 is fitted into the outer side of the above, and an expansion / contraction mechanism by hydraulic pressure is provided inside. When the arbor shaft 13 is provided with a hydraulic expansion / contraction mechanism, the center hole 18 may be straight. Since the hydraulic expansion / contraction mechanism provided on the blade holder 12 or the arbor shaft 13 is well known, its description is omitted.

On one side of the blade holder 12, there is a blade mounting portion 19, and a slitter blade 11 made of a hard material is attached by a plurality of bolts 20. Further, on the blade mounting side of the blade holder 12, there is integrally provided a hooking tubular body portion 22 having a male screw 21 formed on the outside. A nut 23 having a tapered front end is attached to the male screw 21, and a tubular metal fitting 24 provided with a taper that engages with the taper is attached to the proximal end side. The tubular metal fitting 24 has a slitter. A rubber ring 25 having a slightly smaller outer diameter than the blade 11 is attached. Rubber ring 25
Is for mounting the cut steel plate, and acts as a cushioning material. An inner end of the retaining tubular body 22 is reduced in diameter to form an annular retaining portion 26, and an inner side thereof has a space portion 27 having an enlarged diameter.

As shown in FIG. 1, the taper sleeve 14 has a male screw 28 formed on the outer side of the right half and an outer taper portion 29 formed on the outer side of the left half. Further, as shown in FIG. A crack 30 is formed in the. Then, the boss 15 having the inner taper portion 31 that engages with the outer taper portion 29 is mounted, and is fixed by the nut 16 screwed to the male screw 28. Here, when the nut 16 is tightened, the gap between the cracks 30 becomes smaller and the taper sleeve 14 closely fits to the arbor shaft 13, and the inner taper portion 31 of the boss 15 is fixed to the taper sleeve 1.
The outer taper portion 29 of No. 4 is closely fixed.

A male screw 32 is formed on the outer side of the boss 15, and an adjusting nut 17 is screwed onto the male screw 32. 2 to the exposed portion on one side of the adjusting nut 17.
Four rod mounting holes 33 are formed, and four hooking protrusions 34 projecting in the radial direction are provided on the other side. The annular hooking portion 26 is provided with a mounting groove 35 into which the hooking projection 34 is loosely fitted. When mounting the adjusting nut 17, the hooking projection 34 is inserted through the mounting groove 35.
It is designed to be put in.

Therefore, when the spacerless slitter blade positioning fine adjustment device 10 is used, as shown in FIG. 1, with the entire arbor shaft 13 mounted, the well-known hydraulic expansion / contraction mechanism is released. When a rod having an appropriate diameter is inserted into the rod mounting hole 33 and the adjustment nut 17 is rotated in a predetermined direction to press the blade holder 12, the position of the blade holder 12 is slightly moved in the arrow A direction, and the adjustment nut 17 is moved. When it is turned in the opposite direction, the latching protrusion 34 causes the annular latching portion 2 to move.
6 and the blade holder 12 slightly moves in the direction of arrow B. This allows fine adjustment of the slitter blade 11.

In the above embodiment, when the hooking protrusion 34 is fitted in the mounting groove 35 provided in the annular hooking portion 26, the blade holder 12 cannot be adjusted, and the blade holder 12 is rotated. Then it is necessary to shift the position. In the spacerless slitter blade positioning fine adjustment device 40 according to the second embodiment shown in FIG. 3, an internal thread 41 larger than the outer diameter of the hooking protrusion 34 is formed inside the tip of the hooking tubular body portion 22. A retaining ring 42 having an inner diameter smaller than the outer diameter of the retaining projection 34 of the adjusting nut 17 is screwed into this portion. As a result, when the assembly is carried out with the engagement ring 42 removed, the engagement projection 34 can be easily formed.
Can be loaded into the space 27, and continuous adjustment can be performed.

[0014]

In the spacerless slitter blade positioning fine adjustment device according to the first and second aspects, since the position of the blade holder mounted on the arbor shaft can be adjusted by turning the adjustment nut, the workability is improved. To do. In particular, when adjusting the interval of the slitter blade while having a measuring means such as a digital caliper while adjusting the interval, the slitter blade moves continuously by operating the adjusting nut, so that the exact The position can be adjusted. Particularly, in the spacer fine slitter blade positioning fine adjustment device according to the second aspect, it is extremely easy to attach the rubber ring which acts as a cushioning material for the mating slitter blade or the cut plate material.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional view of a spacerless slitter blade positioning fine adjustment device according to a first embodiment of the present invention.

FIG. 2 is a partial sectional view in the coaxial direction.

FIG. 3 is a partial sectional view of a spacerless slitter blade positioning fine adjustment device according to a second embodiment of the present invention.

[Explanation of symbols]

10 Spacerless Slitter Blade Positioning Fine Adjustment Device 11 Slitter Blade 12 Blade Tool Holder 13 Arbor Shaft 14 Tapered Sleeve 15 Boss 16 Nut 17 Adjustment Nut 18 Center Hole 19 Blade Attachment Part 20 Bolt 21 Male Thread 22 Locking Cylinder Part 23 Nut 24 Cylindrical metal fitting 25 Rubber ring 26 Annular locking part 27 Space part 28 Male screw 29 Outer taper part 30 Split 31 Inner taper part 32 Male screw 33 Rod mounting hole 34 Locking protrusion 35 Mounting groove 40 Spacerless slitting tool positioning fine adjustment device 41 Female thread 42 Hook ring

Claims (2)

[Claims] 1. A fine adjustment device for positioning a slitter blade attached to an arbor shaft via a blade holder that can be fixed to the arbor shaft, wherein one of the cutter holders on the mounting side of the slitter blade is
An outer diameter is smaller than the inner diameter of the slitter blade, and an inner cylindrical portion is integrally provided with a retaining cylinder portion having a space portion whose diameter is enlarged from the inner end portion side, and an external thread is formed on the outer side of the arbor shaft. A fine adjustment device for positioning a spacerless slitter blade, characterized in that an adjustment nut having a hooking projection that fits into the space is screwed into the boss. 2. A male thread is formed on the outer side of the latching tubular body portion, and a nut for attaching a tubular metal fitting, to which a rubber ring having a diameter smaller than that of the slitter blade is fixed, is screwed into the outer thread. The spacer fine slitter blade positioning fine adjustment device according to claim 1.