JP2002036183A - Cutter with air injection hole - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cutter capable of blowing off chips produced in cutting by a cutter to prevent the chips from being mixed in a product, and simultaneously assisting the electrostatic elimination of the chips by the air injection. SOLUTION: In this cutter with an air injection hole, a longitudinal prepared hole 4 is formed on a rear part of an upper blade 5 of the long cutter, a number of air injection holes 3 are formed to be communicated with the prepared hole 4, and the chips is blown off by the air from the air injection hole 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutter incorporated in a bag making machine, a bag making and filling device, and the like, wherein an air ejection hole for blowing down a cutting waste so as not to mix into a product is provided at a rear portion of the upper blade. The present invention relates to a cutter having an air ejection hole.

[0002]

2. Description of the Related Art Conventionally, a long cutter has an upper blade,
There are cutters that simply cut.

[0003]

However, in the above-mentioned prior art, one of the processes for producing a bag-making film is a cutting operation, which must be discarded by this cutting. There has been a problem that cutting waste having a width is mixed into a product.

[0004] In view of such circumstances, the present invention has a simple configuration in which a rear portion of an upper blade of a long cutter is disposed in a longitudinal direction so that air can be blown to a cut portion of the upper blade of the cutter. It is an object of the present invention to provide a cutter having an air ejection hole in which a pilot hole is drilled and a number of air outlets are drilled in a direction perpendicular to the pilot hole.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and a pilot hole is formed in a longitudinal direction at a rear portion of an upper blade of a long cutter so as to communicate with the pilot hole. A number of air ejection holes are formed in the air hole, and a technical means is adopted in which cutting dust is blown off by the air ejection holes.

[0006]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIGS. 1 to 3 show an embodiment of the present invention, in which an upper blade 2 made of steel is squared on an upper part of a base metal 1. In the upper blade 2 made of the steel, a number of air injection ports 3 having a diameter of about 2φ are formed at predetermined positions in the longitudinal direction, and a pilot hole 4 having a diameter of about 5φ is formed in the longitudinal direction of the base metal 1. The air hole 3 is communicated with the pilot hole 4 to communicate with a compressed air source (not shown), and the air is supplied and injected through the pilot hole 4 so that air can be injected.

The air injection port 3 is configured to be inclined about 10 degrees in the direction of the cutting edge 5 so that the air injection hits the cutting waste.

Further, it is desirable that the distance between the injection end of the air injection port 3 and the cutting edge 5 is set to 1 mm or less, but it goes without saying that even if it is 1 mm or more, it functions.

Accordingly, as can be understood from FIGS. 1 to 3, the upper blade 2 made of steel of the cutter is provided with the injection port 3 which is an air injection hole, and the cut film having a width of 5 mm to 1 mm is cut. The blown-down cutting dust is blown down so as not to be mixed into the product, and the blown-down cutting waste is stored in a waste storage bag or the like sucked by a suction device, and at the same time, air for assisting static electricity removal of the cutting waste can be jetted.

[0010]

According to the present invention, as a result of employing the above configuration,
The following effects can be obtained. (1) The cutting waste generated by the cutting by the cutter can be blown off so as not to be mixed into the product, and at the same time, the removal of the static electricity of the cutting waste can be performed by air injection.

[Brief description of the drawings]

FIG. 1 is a schematic side view showing a cutter according to an embodiment of the present invention.

FIG. 2 is a schematic front view showing a cutter according to an embodiment of the present invention.

FIG. 3 is a schematic plan view showing a cutter according to an embodiment of the present invention.

[Explanation of symbols]

1) Base metal 2) Upper blade made of steel 3) Injection port 4) Lower hole 5) Cutting edge

Claims (1)

[Claims] 1. A pilot hole is formed in a longitudinal direction at a rear portion of an upper blade of a long cutter, and a large number of air ejection holes are formed so as to communicate with the pilot hole. A cutter having an air ejection hole, wherein the air is blown off.