JPH0627353Y2 - Horizontal sewing machine blade fixing device - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is used in a form printing machine or the like, and a horizontal perforation blade for perforating continuous paper at a constant pitch in a horizontal direction is fixed to a sewing machine cylinder. The present invention relates to a horizontal sewing machine blade fixing device.

[Conventional technology]

As a conventional example of the above-mentioned horizontal sewing machine blade fixing device, the actual machine is shokai 61-201.
There is one disclosed in Japanese Patent No. 799.

This conventional example is as shown in FIG. 5 and FIG.
The slopes a and b are provided on the facing surfaces, and the slopes a and b
A pair of piece pieces e and f having flat surfaces c and d on the opposite side of b are movably accommodated by an appropriate means in a mounting groove h formed in the sewing machine cylinder g by stacking the respective tapered surfaces a and b, and , A sewing machine blade i is interposed between the flat surface c of the one piece piece e and one inner wall of the mounting groove h, and the pair of piece pieces e,
By moving f in the relative direction, the horizontal sewing machine blade i is crimped and fixed to the inner wall of the mounting groove h.

[Problems to be solved by the device]

In the above-mentioned conventional horizontal sewing machine blade fixing device, a pair of piece pieces e, f
The horizontal sewing machine blade is fixed by the relative movement of the two pieces, and both piece pieces e and f are elongated in the moving direction.

For this reason, the slopes a and b of the two piece pieces e and f also become long, and therefore high machining accuracy is required to make the slopes a and b contact each other evenly over their entire length, and the machining is troublesome. However, if the accuracy is poor, there is a problem that the pressing force of the sewing machine blade becomes uneven.

In addition, since the slopes a and b are long, the slope of the slopes must be gentle. Therefore, when the sewing machine blade i is attached or detached, the relative movement amounts of the two pieces e and f become large, and this relative movement can be performed by a screw. When doing, there was a problem that work time was long.

The present invention has been made in view of the above, and since the lengths of both slopes of the piece facing each other on the slope are short, both slopes can be easily and accurately processed, and the slope of the slope can be increased. Since the angle can be increased, the relative movement amount of the opposing piece pieces can be reduced, and the effect of being able to perform the attachment / detachment operation of the sewing machine blade in a short time, etc. can be achieved. It is intended to provide.

[Means for Solving the Problems]

In order to achieve the above object, a horizontal sewing machine blade fixing device according to the present invention has a sewing machine blade mounting groove provided on the outer periphery of a sewing machine cylinder, and a sewing machine blade pressing surface on one side and a plurality of longitudinal positions on the other side. A sewing machine blade pressing piece provided with slopes of the same inclination angle is provided so as to be movable in the longitudinal direction, and a plurality of supporting members facing each slope are provided at positions facing the respective slopes of the sewing machine blade pressing piece. Fix the piece and insert a sewing machine blade between the sewing machine blade pressing surface of the sewing machine pressing piece and the side surface of the sewing machine blade mounting groove, and move the sewing machine blade pressing piece to move the sewing machine blade to the sewing machine blade mounting groove. It is configured to be crimped and fixed.

[Action]

By moving the sewing machine blade pressing piece in the longitudinal direction, this sewing machine blade pressing piece is moved in the width direction of the sewing machine blade mounting groove at each slope position, and the sewing machine blade pressing piece and the side surface of the sewing machine blade mounting groove are moved. The sewing machine blade interposed between and is crimped at the position of each slope.

〔Example〕

An embodiment of the present invention will be described with reference to FIGS.

In the figure, 1 is a sewing machine cylinder, and the outer circumference of the sewing machine cylinder 1 is
Perforation blade mounting grooves 2 are provided at one or more positions depending on the perforation pitch over the entire length of the perforation cylinder 1. Further, bearers 3 and 3 for closing the open ends of the sewing machine blade mounting grooves 2 are fixed to both ends of the sewing machine cylinder 1 with bolts 4.

5 is a sewing machine blade pressing piece piece, and this sewing machine blade pressing piece piece 5
Is slightly shorter than the length of the above-mentioned sewing machine blade mounting groove 2, and one side surface of the sewing machine is provided with a plane sewing machine pressing surface 6
However, on the other side surface, inclined surfaces 7 inclined in one longitudinal direction are provided at a plurality of positions in the longitudinal direction at substantially equal intervals. Further, screw holes 8, 8 are provided on both end surfaces of the sewing machine blade pressing piece 5, and bolts 9, 9 rotatably supported by the bearers 3, 3 are screwed into the screw holes 8, 8. ing. The sewing blade pressing piece 5 is inserted into the sewing blade mounting groove 2 via a shim 10.

Reference numeral 11 denotes a plurality of support piece pieces. One side surface of each support piece piece 11 is in contact with a flat support surface 12 and the other side surface is in contact with each inclined surface 7 of the sewing machine blade pressing piece piece 5. Slope 13
The supporting piece pieces 11 are fitted in the sewing machine blade mounting groove 2 with the inclined surfaces 13 facing each other at the positions facing the inclined surfaces 7 of the sewing machine blade pressing piece piece 5, and the bolts 14 are formed. It will be fixed at. The position of each sewing machine blade pressing piece 5 can be adjusted slightly in the longitudinal direction.

Reference numeral 15 is a sewing machine blade, and the sewing machine blade 15 is pressed against the side surface of the sewing machine blade mounting groove 2 by the sewing machine blade pressing surface 6 of the sewing machine blade pressing piece 5 which is flat.

In the above-described structure, the sewing machine blade pressing piece 5 is moved in the longitudinal direction by rotating the bolts 9, 9 which are rotatably supported by the bearers 3, 3, whereby the sewing machine blade pressing piece 5 is moved to the slope 7 , 13 moves in the width direction by sliding contact,
Sewing blade pressing surface 6 and supporting piece 11 of sewing blade pressing piece 5
The wedge width W between the support surfaces 12 changes.

Therefore, with the wedge width W reduced, the sewing machine blade 1
5 is inserted between the sewing machine blade mounting groove 2 and the sewing machine blade pressing piece 5 at a predetermined height set by the shim 10, and then the sewing machine blade pressing piece 5 is rotated by rotating the bolts 9 and 9. The sewing machine blade 15 is pressure-bonded and fixed by moving in a direction in which the wedge width W increases.

At this time, the support piece 1 is attached to each slope of the sewing machine blade pressing piece 5.
The support piece pieces 11 are positionally adjusted in the longitudinal direction and fixed so that the inclined surface 13 of the first piece abuts with a uniform contact force. As a result, the sewing machine blade 15 is fixed at the position of each supporting piece 11 through the sewing machine blade pressing piece 5 with a uniform pressing force.

The amount of movement of the sewing machine blade pressing piece 5 in the longitudinal direction is determined by the inclination angles of both slopes 7 and 13.
The length of 13 is extremely shorter than the length of the sewing machine blade pressing piece 5, so that the inclination angles of the slopes 7 and 13 can be made large, and the moving amount of the sewing blade pressing piece 5 can be increased. Can be made smaller.

[Effect of device]

According to the present invention, the piece pieces 5, 11 facing each other on the slopes 7, 13
Due to the short length of both slopes 7, 13,
The processing of 13 can be performed easily and accurately. In addition, the length of both slopes 7 and 13 can be shortened,
As a result, it is possible to increase the inclination angle of both slopes 7 and 13, and to reduce the relative movement amount of the opposite piece pieces 5 and 11, and to attach and detach the sewing machine blade 15 in a short time. it can.

[Brief description of drawings]

1 to 4 show an embodiment of the present invention.
The figure is a perspective view of a main part, FIG. 2 is a front view, FIG. 3 is a partially cutaway plan view, and FIG. 4 is a sectional arrow view taken along the line IV-IV in FIG. 5 and 6 show a conventional example, FIG. 5 is a front view, and FIG. 6 is a partially cutaway plan view. 1 is a sewing machine cylinder, 2 is a sewing machine blade mounting groove, 5 is a sewing machine blade pressing piece, 6 is a sewing machine pressing surface, 7 is a slope, 11 is a supporting piece, and 15 is a sewing machine blade.

Claims (1)

[Scope of utility model registration request] 1. A sewing machine having a sewing machine blade mounting groove 2 formed on the outer periphery of a sewing machine cylinder 1 and provided with a sewing machine blade pressing surface 6 on one side surface and inclined surfaces 7 having the same inclination angle at a plurality of longitudinal positions on the other side surface. The blade pressing piece 5 is provided so as to be movable in the longitudinal direction, and a plurality of support piece pieces 11 that are in contact with the slopes 7 are provided at positions facing the respective slopes 7 of the sewing machine blade pressing piece 5.
The sewing machine blade 15 is fixedly provided, and the sewing machine blade 15 is interposed between the sewing machine blade pressing surface 6 of the sewing machine pressing piece 5 and the side surface of the sewing machine blade mounting groove, and the sewing machine blade 15 is moved by moving the sewing machine pressing piece 5. A lateral sewing machine blade fixing device, which is crimped and fixed to the sewing machine blade mounting groove 2.