JPH0430993A - Cutting device - Google Patents

Abstract

PURPOSE:To adjust the direction of a cutting edge only with the adjustment of two rising and setting shafts, by supporting the cutting edge fixture at whose one end the cutting edge is fitted with three shafts not located on a straight line, making at least two of three support shafts rising and setting freely and connecting this support axis and cutting edge fixture by a universal joint. CONSTITUTION:A cutting edge fixture A is supported by three shaft 6, 7 not located on a straight line. At least two shafts 6 of these three supporting shafts 6, 7 are made freely rising and setting in the shaft direction. The direction of the rotating shaft 4 of the cutting edge fixture a is freely changed via spheri cal ends 61, 71 by rising and setting this rising and setting shaft 6 in the shaft direction and consequently the direction of a cutting edge 1 is freely changed.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a cutting device. Specifically, the present invention relates to a cutting device for sheet bodies, films wound into rolls, adhesive-coated films, etc. (hereinafter referred to as sheet rolls).

[Conventional technology]

Tape cutting devices that cut a roll of film into a constant width have existed for a long time. The oldest method involved simply pressing a fixed cutting blade onto a rotating roll of film to cut it into a constant width. However, with this device, the cutting blade is fixed, so
If the direction of the cutting blade changes even slightly, the cutting location will move, making it impossible to cut a good tape, or the cutting blade may break. In order to overcome this drawback, tape cutting devices have been used in which the cutting blade is fixed to a cutting blade mount and the orientation of the cutting blade mount can be corrected. Such a conventional cutting blade attachment will be explained with reference to FIGS. 3 to 5. 3 to 5, when the screw 104 is loosened and the lower stand 102 is rotated relative to the upper stand 103, the rotation axis of the cutting blade 101 and the rotation axis of the rolled film move in the "twist" direction. By adjusting this, the "twist" of the rotation axis of the cutting blade 101 and the rotation axis of the rolled film can be adjusted, and the rolled film 109 can be cut at a fixed location. Also, when the handle 105 is rotated, the axis 106 becomes the axis 10.
8 (arrow in FIG. 5), the cutting blade 101 moves in a direction perpendicular to the plane of the paper in FIG. Therefore, by adjusting this, it is possible to prevent the blade 101 from diagonally entering the rolled film.

[Problem to be solved by the invention]

However, in such conventional cutting blade mounts, the cutting blade moves slightly each time the screw is loosened or tightened, making adjustment difficult even for an experienced person. In particular, there was a problem in that fine adjustment was difficult. SUMMARY OF THE INVENTION Therefore, an object of the present invention is to propose a tape cutting device in which the orientation of a cutting blade attachment can be easily adjusted.

[Means to solve the problem]

The present invention has been made in order to solve the above problems and achieve the above objects, and the present invention is a cutting blade that cuts a sheet body or a sheet roll to a certain width, and has a cutting blade attached to one end. The tool is supported by three axes that are not in a straight line, at least two of the three support shafts are movable in the axial direction, and the support shaft and the cutting blade attachment are connected by a universal joint. It will become.

[For use]

In the present invention, this cutting blade mount is supported by three axes that are not in a straight line, and at least two of the three support shafts are made to be freely protrusive and retractable in the axial direction. By making it appear and disappear, the direction of the rotation axis of the cutting blade attachment can be freely changed, and as a result, the direction of the cutting blade can be changed freely. In addition, the tip of the shaft that can be retracted and retracted is a universal joint, so even if the shaft retracts and retracts in the direction of travel, or in the opposite direction, the direction of the cutting blade will remain the same. , follow this movement.

【Example】

Next, embodiments will be described with reference to the drawings. FIG. 1 is a sectional view showing the vicinity of the cutting blade attachment of the tape cutting device of the present invention, and FIG. 2 is a sectional view taken along line XX in FIG. 1. In the figure, 1 is a cutting blade. A is the cutting blade mount, tightening is on plate 2, and mounting is on plate 3.
, a rotating shaft 4, and a flange 5. The cutting blade 1 is sandwiched between the plate 3 for installation and the plate 2 for tightening.
The cutting blade 1 is attached by screwing the nut 21 into the bolt 22 and tightening it. Further, a bearing 31 is provided between the rotating shaft 4 and the mounting plate 3 so that the cutting blade 1 can rotate when pressed against a rotating roll of film. ing. One end of this rotating shaft 4 is a flange 5. Reference numeral 6 denotes a retractable shaft, which can be freely retracted and retracted in the axial direction by rotating a handle 8 having a female thread. As can be seen from FIG. 2, there are two retractable shafts 6, each of which is equipped with a handle 8.8. A fixed shaft 7 is fixed to an arm 10 of the cutting device with a nut 9. The two protruding and retracting shafts 6.6 and the fixed shaft 7 are located in a position that forms an approximately equilateral triangle when they are connected, and the protruding and retracting shafts 6.6
have the same height. The retractable shaft 6 and the fixed shaft 7 are connected to the flange 5 by a universal joint, and the shape of the retractable shaft 6 and the fixed shaft 7 are
The tips of the spherical tips 61 and 71 are respectively inserted into the flange 5, sandwiched between the holding plate 51, and embedded. By being embedded in this manner, the flange 5 moves forward or retreats even if the retractable shaft 6 advances or retreats in the axial direction. Next, how to use this cutting blade attachment A and its function will be explained. First of all, remove the Nand 21 and remove the plate 2 for tightening. Attach the cutting blade 1 to the shaft of the bolt 22, attach plate 2 for tightening, screw the nut 21 onto the bolt 22, and tighten it strongly.The cutting blade 1 will be attached to plate 3 and tightened to plate 2. During this time, it is firmly attached so that it does not move. Next, rotate the two handles 8.8 to extend and retract the shaft 6.
6 back and forth in the axial direction, the rotating shaft 4 and the rotating shaft of the film (not shown) wound into a roll are "twisted".
Adjust so that the cutting blade l advances at right angles to the rolled film. This adjustment will be explained in more detail. When the handle 8.8 is rotated to move one of the protruding and retracting shafts 6.6 in the axial direction, the cutting blade 1 moves in the "twist" direction, and both protruding and retracting shafts 6.6 are moved in the same direction. When the cutting blade 1 is moved by the amount, the direction in which the cutting blade 1 advances into the rolled film changes. Once the cutting blade 1 has been adjusted so as not to be "twisted" and to advance perpendicularly into the rolled film, the cutting blade 1 is moved by a moving device (not shown).
is pressed against the rolled film to cut the rolled film. Next, the rolled film is moved by a certain width in the axial direction, and in the same manner, the cutting blade l is pressed against the rolled film to cut the film, thereby creating a tape of a certain width. By adjusting the two protruding and retracting shafts 6.6 in this way, the film wound into a roll can be cut to a constant width without any trouble.

【Effect of the invention】

As is clear from the above explanation, in the present invention, the direction of the cutting blade can be adjusted simply by adjusting the two retracting and retracting shafts.
Extremely convenient.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing the vicinity of the cutting blade attachment of the tape cutting device of the present invention, and FIG. 2 is a sectional view taken along the line XX in FIG. FIG. 3 is a side view showing the vicinity of the cutting blade mount of a conventional tape cutting device, FIG. 4 is a perspective view showing the flange portion of the cutting blade mount of FIG. 3, and FIG. FIG. 3 is a perspective view showing an axial adjustment portion of the cutting blade attachment. A------------ Cutting blade attachment 1-・
−−−−−111−−−− Cutting blade tightening is plate mounting is plate rotating shaft one flange protruding and retracting shaft spherical end fixed shaft spherical end

Claims (1)

[Claims] (1) In a cutting device that cuts a sheet body or a sheet roll to a constant width, a cutting blade mount with a cutting blade attached to one end is supported by three axes that are not aligned in a straight line, and among the three support axes, A cutting device characterized in that at least two shafts are movable in the axial direction, and the support shaft and the cutting blade mount are connected by a universal joint.