JPH0553897U - Slitter knife blade replacement tool - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention provides a slitter knife blade replacement tool that allows an operator to work extremely safely without being injured by the upper blade. [Structure] Fixed base (4) that has protruding pins (3) that are fitted to the holes (2) on one side of the holder (1)
And the protruding pin (6) provided to match the hole (5) on the other side of the holder that is set on the fixed base.
A handle portion (7) having

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a slitter knife blade replacement tool that allows a worker to work extremely safely without being injured by the upper blade.

[0002]

[Prior Art]

 In a paper manufacturing factory, a plastic film factory, etc., a paper sheet, a film sheet, or a roll sheet coated on these sheets is cut into a flat sheet of a predetermined length by a sheet cutter device as needed. In such a sheet cutter device, a plurality of sheets fed out from a plurality of sheet windings are divided into a desired width by a slitter knife and fed into a cutting knife by a feed roll to form a flat sheet having a desired length. Be cut.

By the way, as the slitter knife of the sheet cutter device having the above-mentioned configuration, a so-called shear-cut type consisting of a plate-shaped upper blade and a bowl-shaped lower blade is often used, but these upper blades are not driven. On the other hand, the lower blade is driven, and the upper blade is pressed against the lower blade by a spring or an air cylinder, and is rotated by friction to perform slitting processing at both ends of the sheet and a desired position in the width direction.

In the sheet cutter device, the slitter knife is required to be capable of producing a sheet with an accurate cut for a long period of time, and the sheet feeding speed is a low speed of about 100 to 200 m / min. The number of sheets cut per hour also increases, and the cutting edge of the upper blade of the slitter knife is worn, and as a result, it is usually necessary to replace the upper blade of the slitter knife about every 180 hours.

This method of replacing the upper blade has a structure in which the holder portion for fixing the upper blade is structured such that the upper blade is sandwiched between the disk portions from both sides and then screwed in to be fixed. Insert the upper blade from both sides and screw it in to loosen the fixed disk.Hold the removed holder with one hand and use a special blade replacement tool to loosen the disk in the opposite direction to the screw before wearing. This is a method of removing the upper blade, replacing it with a new upper blade, and then tightening the disc part again with a blade replacement tool.

Therefore, in the above-described upper blade replacement method, if the worker slightly touches the blade edge of the upper blade of the holder part during the upper blade replacement work, the worker is likely to contact the upper blade. It was a real problem that there were many injuries caused by.

[0007]

[Problems to be solved by the device]

 The present invention provides a slitter knife blade replacement tool that allows a worker to work extremely safely without being injured by the upper blade.

[0008]

[Means for Solving the Problems]

 The present invention is provided in accordance with a fixing base having a projecting pin provided corresponding to a hole formed on one side of a holder part and a hole formed on the other side of the holder part set on the fixing base. It is a slitter knife blade replacement tool characterized by comprising a handle portion having a protruding pin.

[0009]

[Action]

 The slitter knife blade replacement tool of the present invention will be described in more detail with reference to FIG. As shown in FIG. 1, the present invention includes a fixing base (4) having a projecting pin (3) which is fitted to a hole (2) formed on one side of a holder (1), and a fixing base (4). A slitter knife blade replacement tool that is basically composed of a handle part (7) having a protruding pin (6) provided to match the hole (5) on the other side machined in the holder part in the set state. Is.

The method of using the slitter knife blade replacement tool of the present invention will be described in detail below. In Fig. 1, first, place the protruding pin of the fixed base (4) so that the hole on one side of the holder part (1) is aligned, and place the holder part on the protruding pin of the fixed base, and then the handle part (7). If you are ready to loosen the disc (8) by aligning the protruding pin of the disc with the hole on the other side of the holder, loosen the disc by the handle in the opposite direction and then wear it. The whole process is completed by removing the upper blade (9), replacing it with a new upper blade, and then tightening the disc section again with the handle section.

In addition, the above-mentioned handle part is provided with the cover part (10) for preventing contact with the slitter knife blade, so that the worker does the replacement work of the slitter knife blade fixed to the holder part. It is extremely safe without contact with the slitter knife blade during operation, and such a configuration is one of the preferred embodiments of the present invention. In addition, since the holder part of a normal slitter knife blade often has a hole (11) that penetrates the center part when the upper blade is installed on the fixed shaft, the shaft part ( When the holder 12 is provided so as to project and the holder is mounted on the projecting pin of the fixing base as described above, the mounting work of the holder can be easily performed by utilizing this hole.

The object of the present invention is not limited to the so-called shear-cut type slitter knife consisting of the plate-shaped upper blade and the bowl-shaped lower blade as described above. It can also be applied to the upper and lower blades of other slitter knives and the slitter knife of winder devices.

[0013]

[Effect of the device]

 According to the slitter knife blade replacement tool of the present invention, the worker can work extremely safely without being injured by the upper blade.

[Brief description of drawings]

FIG. 1 is a schematic view showing a slitter knife blade replacement tool of the present invention.

[Explanation of symbols] (1) Holder part (2) Holder hole (3) Fixing base protruding pin (4) Fixing base (5) Holder other side hole (6) Handle protruding pin (7) Handle part (8) Disc part (9) Upper blade (10) Cover part (11) Hole part (12) Shaft part

Claims (2)

[Scope of utility model registration request] 1. A fixing base having a projecting pin provided in accordance with a hole formed on one side of a holder, and a hole formed on the other side of the holder set on the fixing base. A slitter knife blade replacement tool, comprising a handle portion having a protruding pin provided. 2. The slitter knife blade replacement tool according to claim 1, wherein the handle portion is provided with a cover portion for preventing contact with the slitter knife blade.