JPH0513511Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an improvement of a blade support in a slitter.

(Prior art and its problems) Generally, a slitter that cuts a wide sheet-like material such as a synthetic resin film or paper into a plurality of narrow sheet-like materials is parallel to the surface of the sheet-like material and Supports having blades are attached at predetermined intervals to shaft bodies installed orthogonally to each other. To position the cutter, move the support and fix it to the shaft through a screw such as a bolt at a predetermined position, or do not fix the support directly to the shaft. A method is used in which collars are disposed on both sides of the tool, the collars are fixed to the shaft when the knife is almost at the cutting position, and a spacer for adjusting the position is inserted into the gap between the support and the collar.

However, in the above method, in the former case,
It is very difficult to move and position the support by a small amount, and the adjustment takes a long time. Further, in the latter case, there were problems such as the need to prepare a large number of spacers for position adjustment.

An example of a cutting device that can easily adjust the position of the cutter is the one described in Japanese Utility Model Application Publication No. 182887/1987.

The cutting device has a plurality of blades disposed on a main body base whose position is adjustable in the width direction of the sheet, and the number of blades is larger than the minimum number of edges to be cut. at least 2 of
The blades are arranged on a movable base that is provided on the main body base so that their position can be adjusted in the width direction of the sheet, and the main body base and the movable base are moved respectively by two screw shafts. Therefore, there are problems in that the configuration of the entire cutting device becomes complicated and the entire cutting device becomes large.

In addition, when cutting a wide sheet into multiple narrow sheets using such a cutting device, the multiple cutting devices must be installed with their positions shifted in the longitudinal and width directions of the sheets. There is a problem in that the cutting portion becomes very large and it becomes difficult to adjust the position of the blade.

(Purpose) The present invention solves the above-mentioned problems and can be applied to a slitter in which multiple cutter supports are attached to one shaft and the distance between the cutters is narrow, and the positioning operation of the cutters is easy. The purpose of the present invention is to provide a blade support tool that provides a suitable blade support.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the knife support of the present invention has a support body movably mounted on a shaft body in the longitudinal direction of the axis, and a knife, A cutter mount is mounted on the outer periphery of the support so as to be movable in the longitudinal direction of the axis; A positioning member that is fixed in position is coaxially provided, and the positioning member is provided with a scale for reading the amount of movement.

(Example) The structure of one example of the knife support of the present invention will be described based on the drawings.

Reference numeral 1 denotes a shaft body mounted on a machine frame (not shown) in a state perpendicular to the longitudinal direction of the sheet material and parallel to the sheet surface, and a support body 2 is movably mounted thereon. A pin 3 is provided on the support body 2 so as to protrude toward the shaft body 1 side, and is engaged with a groove 1a formed in the circumferential surface of the shaft body 1. If the shaft body 1 has a rectangular cross section, the pin 3 described above is unnecessary.

The support body 2 described above is fixed to the shaft body 1 by tightening a screw body 4 such as a bolt at a predetermined position.

Reference numeral 5 denotes a blade attachment body movably mounted on the support body 2, and a pin 6 is provided in a protruding manner and is engaged with a groove 2a bored in the circumferential surface of the support body 2. Further, a reference mark 5a for reading the scale is attached at a predetermined position.

Reference numeral 7 designates a presser nut screwed onto a threaded portion 2b formed on the circumferential surface of the support body 2, and is provided with a scale 7a for reading the amount of movement of the blade attachment body 5. Reference numeral 8 denotes a disc spring installed between the collar 2c formed on the support body 2 and the blade attachment body 5. The blade mount 5 moves on the support 2 in the longitudinal direction of the axis by compressing the disc spring 8 by tightening the retaining nut 7.
Fixed in place.

9 is a blade such as a safety razor;
0 to the blade attachment body 5.

When setting the above-mentioned knife mount 5 to the cutting position, first, adjust the presser nut 7 by rotating the retainer nut 7 so that the knife mount 5 is located approximately in the center of the support 2 in the longitudinal direction of the axis. Next, the screw body 4 is loosened to move the blade attachment body 5 together with the support body 2 to the cutting position.

Then, the screw body 4 is tightened at a position where the blade 9 almost matches the cutting position to fix the blade attachment body 5 and the support body 2 to the shaft body 1, and then the presser nut 7 is rotated to move the support body 2. Align the knife 9 to a predetermined cutting position. At this time, the outer periphery of the side surface of the presser nut 7
If the scale 7a is divided into 10 equal parts and the screw pitch of the retainer nut 7 is 1 mm, rotating the knife mount 5 by one scale with reference to the reference mark 5a will result in a reading of 0.1 mm.
This means that the blade attachment body 5 has moved.

Therefore, while reading the amount of movement of the scale 7a, the presser nut 7 is rotated to position the cutter 9.

Since the retaining nut 7 is pressed with a predetermined force by the disk spring 8, it will not rotate unless rotated by the operator, and the cutter mount 5 is fixed to the support 2.

In addition to the above, as shown in FIG. 3, the present invention is capable of attaching a knife by screwing retainer nuts 7 on both sides of the blade mount 5, loosening one retainer nut 7, and tightening the other retainer nut 7. It is also possible to move the body 5.

(Effect of the invention) The knife support of the present invention has a support mounted on a shaft body so as to be movable in the longitudinal direction of the shaft center, and a cutter, and has a cutter mounted on the outer periphery of the support body so as to be movable in the longitudinal direction of the shaft center. It is screwed onto the installed blade mount and the outer periphery of the support.
A positioning member for moving the blade attachment body on the support body in the longitudinal direction of the axis and fixing it at a predetermined position is coaxially provided, and the positioning member is provided with a scale for reading the amount of movement. Therefore, the widthwise dimension of the blade support is reduced, a large number of blade supports can be attached to one shaft, and a wide sheet can be cut into a plurality of narrow sheets. Further, fine adjustments for positioning the cutter can be easily and accurately made by simply rotating the retainer nut while looking at the scale attached to the retainer nut.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing one embodiment of the knife support of the present invention. FIG. 2 is a sectional view taken along the Z-Z line in FIG. 1. FIG. 3 is a sectional view showing another embodiment of the knife support. 1... Shaft body, 2... Support body, 3, 6... Pin,
4...screw body, 5...blade mounting body, 7...presser nut, 8...disc spring, 9...blade, 10...presser.

Claims (1)

[Scope of utility model registration request] a support mounted on the shaft body so as to be movable in the longitudinal direction of the shaft center; a cutter mounting body having a cutter and mounted on the outer periphery of the support body so as to be movable in the longitudinal direction of the shaft center; A positioning member that is screwed onto the support body to move the blade mount in the longitudinal direction of the axis and fix it at a predetermined position is coaxially provided, and the positioning member is provided with a scale for reading the amount of movement. A knife support that is characterized by: