JPS594566A - Paper cutting mechanism - Google Patents

Abstract

PURPOSE:To facilitate replacement of cutter member by providing a cutter member fixed in parallel with the paper while in perpendicular with the feeding direction and a cutter member crossing with said cutter member and movable laterally and enabling cutting of paper through pressure contact of both cutter members. CONSTITUTION:A wire 3a is fixed at both ends and applied tension to prevent flexure. Then a movable wire 2a is pressure contacted perpendicularly with the fixed wire 3a where one end is coupled to the fulcrum 6 while the other end is coupled through a spring 5 to the drive section 4. With such structure, the drive section 4 is moved in the direction A to pressure contact the movable wire 2a against the fixed wire 3a while extending the spring 5, thus to cut the paper 1. Since a wire is employed in the paper cutter, the material cost can be reduced. While since each wire 2a, 3a has rectangular cross-section where the edges will face each other, if the sharpness of one edge has deteriorated it can be replaced with another edge.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Technical Field of the Invention The paper cutting mechanism of the present invention relates to a cutter for long continuous paper, and particularly relates to a paper cutting mechanism for cutting roll paper in a POS.

(b) Prior art and problems Figure 1 is a block diagram of a cutter according to the prior art, which cuts paper wound into a roll inside a POS etc. after completing a specified print.
Use a cutter to cut to specific lengths. When the blade surface of the movable blade 2 rotated in the direction of the arrow P about the rotational fulcrum Qil- with respect to the fixed blade 3, it cut one roll of paper on the fixed blade 3 while being pressed in the direction of the arrow F. .

At this time, the movement of the movable blade 2 is controlled by the use of a drive device (not shown), and when the blade becomes sharp, both the fixed blade 3 and the fixed blade 3 are replaced with spare blades. However, it is troublesome to have a fixed blade 3 and a movable blade 2 in reserve, and even if the IJ taste is slightly dull,
The purpose of the present invention is to solve the above-mentioned disadvantages. We aim to provide a complete paper cutting mechanism that can be quickly resolved and easily replaced.

(d) Structure of the Invention The structure of the paper cutting mechanism according to the present invention that achieves the above object is a paper cutting mechanism that feeds continuous paper, prints in the printing unit, and then completely cuts the continuous paper at a predetermined position. ml fixed parallel to the continuous paper and perpendicular to the feeding direction
a second blade material that intersects the fixed blade material and moves in the width direction of the continuous paper, at least one of which is a wire; The present invention is characterized by a configuration Vc in which the movable blade cuts the continuous paper by pressure contact with the fixed blade while traversing the continuous paper in the width direction of the continuous paper.

(,3) Examples of the invention The present invention will be explained in detail below using figures.

Fig. 2 is a diagram of a paper cutting mechanism according to an embodiment of the present invention, and Fig. 3 is an enlarged view of the main parts. , 5 is a spring, and 6 is a pivot point.

In FIG. 2, the fixed wire 3a is fixed at both ends and tensioned to prevent slack.

A movable wire 2a (i-) is provided perpendicularly to the fixed wire 3a and in pressure contact, and has a rotation fulcrum 6 at one end and a structure in which the other end is connected and fixed to the drive unit 4 via a spring 5.The drive unit 4 is When a signal is received from a control section (not shown), the wire moves in the direction of the arrow.As the spring 5 extends, the moving wire 2a comes to cut the paper 1 while being in pressure contact with the fixed wire 3a.

Fig. 5e shows the cross section of the rears 2a and 3a and the press-contact state,
The wires 2a and 3a have a rectangular cross section, and their apex angles face each other. The square cross section has four apex angles as shown! Therefore, if the sharpness of one apex angle in use becomes dull, use another apex angle.

FIG. 4 shows a diagram of a paper cutting machine according to another embodiment of the present invention, and the difference between FIG. 4 and FIG. 2 is that the movable blade 2
The point is that only a is the meeting wire.

Further, although not shown, the cross section of the wire may be rectangular, and needless to say, it is not limited to four apex angles.

(f) Effects of the Invention As explained in detail above, in the present invention, by using a wire sound on at least one side of the paper cutting blade, there is no need for a custom-made product, and commercially available copper can be used. Because it can be done, the cost is low.

Furthermore, since the cross section has multiple apex angles totaling 1, if the sharpness deteriorates, all you need to do is change the apex angles. For example, if there are four apex angles,
It has twice the lifespan, reduces costs, and eliminates the hassle of having spare parts.

[Brief explanation of drawings]

Fig. 1 is a diagram of the conventional cutter mechanism, Fig. 2 is a diagram of the cutter mechanism of the present invention, Fig. 3 is an enlarged view of the main part of Fig. 2, and Fig. 4 is a diagram of the cutter mechanism of another embodiment. Inside, 1 is paper, 2a is a moving wire, and 3a is a fixed wire. M71 yen]

Claims (1)

[Claims] A paper cutting mechanism that feeds out continuous paper and cuts the continuous paper at a predetermined position after printing in a printing unit, and a first blade member identified parallel to the continuous paper and orthogonal to the feeding direction; A second blade member that moves in the width direction of the continuous paper across the fixed blade member, and a second blade member that moves in the width direction of the continuous paper sheet in close contact with the fixed blade member, and A paper cutting mechanism characterized in that the paper cutting mechanism 41 is configured to completely cut the continuous paper by applying pressure with the fixed blade member.