JP3937378B2 - Cutting device - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a cutting device for supplying sanitary cotton paper to a packaging device at a fixed length.
[0002]
[Problems of the prior art]
Cotton, which is a substitute for sanitary gauze, is formed by laminating 10 to 20 strips of thin non-woven cotton paper to a thickness of about 2 mm, and then cutting it to a certain length sequentially from the end, In order to adjust the cutting operation to the speed of the packaging apparatus, a rotary cutter is used in consideration of efficiency. However, since cotton paper has the property that its properties include air and swell, it is necessary to set the gap between the two cutting blades strictly in order to cut the cotton paper accurately. Since it gradually expands, it is necessary to adjust the clearance of the blade each time. However, since the conventional rotary blade gap has an adjustment structure by silent vision, there is a drawback that it takes time to accurately adjust the gap.
[0003]
Therefore, in order to cut the cotton paper into an efficient and accurate square, the present invention has a flat blade installed with the cutting edge facing the rotary blade in the area facing the rotary blade across the moving area of the strip-like cotton paper, Means for sliding adjustment in the direction of the rotary blade, the adjustment means comprising a micrometer fixed to the machine base, and the micrometer has a displacement pin abutting against the edge of the flat blade; While adjusting the pressure against the flat blade by expanding and contracting in the axial direction by the screw action of the ring, the shaft of the rotary blade is fixed to both ends with a ring-shaped stopper concentric with the shaft and formed by an excavable material, In order to adjust the clearance between the rotary blade and the flat blade, when the flat blade is brought close to the rotary blade, the flat blade is configured to ensure a clearance with the rotary blade while scraping the ring-shaped stopper.
[0004]
If the gap between the rotary blade and the flat blade that continuously cuts cotton paper exceeds the allowable value due to wear, the displacement pin is pushed in the axial direction by rotating the handle of the micrometer to adjust the gap between the flat blade and the rotary blade. In this case, however, a gap with the rotary blade is secured while the ring-shaped stopper is being sharpened with the flat blade.
[0005]
【Example】
As shown in FIG. 1, the rotary blade 11 supported between the wall-like frames 10 on both sides has a plate-like blade 14 on the outer surface of a shaft 13 that rotates by input from the chain wheel 12 along the coaxial direction. The lead is attached and formed.
[0006]
A flat blade 17 is slidably installed in a gap between a base 15 installed between the both side frames 10 and a plate 16 fixed to each frame 10. Two micrometers 20 placed on the base material 18 installed on the base material 18 are fixed to the base material 18 with a pressing material 21. The side surface of this configuration is as shown in FIGS.
[0007]
Both of the micrometers 20 are such that the displacement pin 23 at the tip thereof is expanded and contracted in the axial direction by the action of the screw inside the main body by the rotation operation of the handle 22, and the flat blade 17 slides on the upper surface of the base 15 to rotate. The blade 14 can be approached. In this case, both ends of the flat blade 17 approach the rotating blade little by little while scraping a hard plastic ring-shaped stopper 25 fixed to both ends of the shaft of the rotating blade. The purpose of installing the stopper 25 is to prevent the flat blade 17 from moving greatly and the two blades 14 and 17 from colliding with each other.
[0008]
As shown in FIG. 2, the end of the leaf spring 30 fixed to the base material 18 is pressed against the side surface of the handle 20 of the micrometer to prevent idle rotation of the handle, and the flat blade 17 is set on the base 15 as shown in FIG. It fixes by 31 and the clearance gap between the rotary blades 14 is fixed, ie, maintained constant. In FIG. 3, the triangular guide 32 existing on the flat blade 17 is a guide bar that maintains the guide angle of the cotton 33 that moves by sliding on the upper surface thereof.
[0009]
The cotton paper 33 that is moved by the rotation of the pair of upper and lower drawing rolls 34 and 35 in FIG. 2 is cut at a constant pitch by the rotation of the rotary blade 11. The earlier the speed of the rotary blade, the more the oblique cutting surface of the cotton paper by the lead of the blade 14 becomes perpendicular, so the rotary blade 11 is formed in a large diameter in the embodiment.
[0010]
The cut cotton paper 60 cut as described above falls to the guide surface 36 in FIG. 2 one after another, and an attachment 38 attached to the chain 37 places the cut cotton paper 60 between the upper and lower packaging films 40 and 41 at regular intervals. Since the paper is fed, the cut cotton paper 60 is wrapped by two films 40 and 41 as shown in FIG.
[0011]
The attachment 38 shown in FIG. 2 is supported by being tightened with set bolts 43 as shown in FIG. 5 at both ends of a pin 42 rotatably supported by the chain 37 as shown in FIG.
[Brief description of the drawings]
[Fig. 1] Plan view [Fig. 2] Side view taken along arrow II-II in Fig. 1 [Fig. 3] Partial enlarged view of Fig. 2 [Fig. 4] Front view of the transport mechanism [Fig. Fig. 6 Plan view of the package [Explanation of symbols]
11-Rotary blade 13-Shaft 14-Blade 17-Flat blade 20-Micrometer 22-Handle 23-Displacement pin 31-Set bolt 25-Ring-shaped stopper

Claims (3)

A means for slidingly adjusting a flat blade installed in a direction facing the rotary blade in a region facing the rotary blade across the moving area of the strip-shaped cotton paper in the direction of the rotary blade, the adjusting means comprising: It consists of a micrometer fixed to the machine base, and the micrometer adjusts the pressure on the flat blade by the displacement pin that contacts the edge of the flat blade extending and contracting in the axial direction by the internal screw action by the rotation of the handle On the other hand, the shaft of the rotary blade is fixed at both ends with a ring-shaped stopper concentric with the shaft and formed by a drillable material, and the flat blade is used to adjust the gap between the rotary blade and the flat blade. A cutting device configured to ensure a gap with the rotary blade while scraping the ring-shaped stopper with the flat blade when approaching the rotary blade .   2. The cutting device according to claim 1, wherein a spring pressure is applied to the handle to prevent the handle from moving freely.   The said flat blade is a cutting device of Claim 1 provided with the set bolt which can be displaced along the surface of a machine base and can be fixed with respect to this machine base.

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