KR950007202Y1 - Paper cutting apparatus for printer of cash register - Google Patents

Abstract

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Description

Automatic paper cutting device for cash register printer

1 is a front configuration diagram showing a paper automatic cutting device of a conventional printer.

Figure 2 is a front configuration diagram showing a paper automatic cutting device of the cash register printer according to the present invention.

Figure 3 is a schematic perspective view showing a fixed blade installation structure of the paper cutting device according to the present invention.

* Explanation of symbols for main parts of the drawings

1: mainframe 2: fixed blade

3: Return spring 4: Rotating shaft

5: driving lever 6: movable blade

7, 7 ': Jaw 8, 8': Jamming protrusion

9: screw 10, 10 ': leaf spring

The present invention relates to an automatic cutting device installed in the printer of the cash register to automatically cut the receipt of the customer who has completed the printing, which is, in particular, the movable blade is fixed to the printer's main frame and moved up and down by the driving lever The locking jaw is provided on the left and right sides of the fixed blade for cutting the receipt paper while crossing, and is fixed to the inside of the locking projection installed in the main frame. The rear of the fixed blade is mounted on the main frame as a screw to push the fixed blade forward. The main plate springs are installed on both sides, and the movable blades are moved up and down so that the front surfaces of the fixed blades come into close contact with each other, so that there is no need to install separate leaf springs on the body of the movable blades. It is easy to assemble and prevents the paper from falling or tearing when cutting the receipt paper. The cash register printer appointed to perform cutting operations ambiguity paper relates to an automatic cutting device.

In general, the automatic cutting device installed in the printer of the cash register to automatically cut the receipt of the completed customer is provided with a fixed blade and a movable blade of the scissors type, respectively, the return spring of the movable blade and one side end is The driving lever driven by the rotation of the cam moves downward of the other end of the movable blade to cut the paper while the movable blade intersects with the fixed blade in the form of scissors.

In the structure of the conventional paper automatic cutting device related to this technique, as shown in FIG. 1, the fixed blade 12 is fixedly installed by spot welding (W) on the printer main frame (11). The return spring 13 and the rotation shaft 14 are installed at both ends, and the leaf springs 17 and 17 'are installed on the body of the movable blade 16 on which one end of the driving lever 15 is extended. The movable blade 16 was moved up and down while pressing the front surface to cut the paper 18.

The conventional paper automatic cutting device having the structure as described above is lowered by the driving lever 15, in which the leaf springs (17) and (17 ') press the movable blades and the front surface on the body of the movable blade (16). While being lowered while being in close contact with the fixed blade 12 installed on the lower side is to cut the paper 18.

However, the movable blade 16 that is raised or lowered has to be maintained at a constant gap when crossing the fixed blade 12 at all times, so that the smooth cutting of the paper 18 is made, and thus the movable blade 16 is structurally movable. The contact between the fixed blade 12 and the fixed edge 12 does not occur, the gap between the gap, or the tearing and cutting phenomenon occurs frequently to cause a paper cutting work, as well as the reliability of the product due to this There was a problem.

The present invention has been made in order to improve the conventional problems as described above, the purpose of which is fixed to the main frame of the printer is fixed to the cutting blade while cutting the receipt paper while crossing the movable blade to move up and down by the driving lever A locking jaw is provided on both sides to fix and fix the inside of the locking projection installed in the main frame. The rear side of the fixed blade is installed on both sides of the plate spring which is installed on the main frame as a screw and pushes the fixed blade forward. By moving the descending movable blades and the front surfaces of the fixed blades to be in close contact with each other, there is no need to install a separate leaf spring on the body of the movable blades, making it easier to manufacture and assemble than a simple structure. For cash registers that can perform reliable cutting operations by preventing sagging or tearing of paper during To provide a printer of the automatic paper cutting device.

Hereinafter, an embodiment of the present invention will be described based on the accompanying drawings.

Figure 2 is a schematic configuration for explaining the paper cutting machine of the cash register printer according to the present invention, Figure 3 is a schematic perspective view showing a fixed blade installation structure of the paper cutting machine according to the present invention, the main A fixed blade (2) is provided on the frame (1), and a return spring (3) and a rotating shaft (4) are installed at the front and rear ends thereof, and one end of the driving lever (5) is connected to the lower end. In the automatic paper cutting device consisting of a movable blade (5), engaging projections (8) (8) (8) (8) (8) (8) (8) (8) (8) (8) (8) (8) (8) (8) (8) ') Is fixed to the main blade (2) is fixed to the main frame (1) as a screw (9) on the rear of the fixed blade (2) is pushed forward the fixed blade (2) forward It consists of a configuration.

Unexplained reference numeral 20 in the figure is a receipt paper.

Referring to the operation and effects of the present invention composed of such a structure as follows.

That is, as shown in FIGS. 2 and 3, the paper 20 is moved while the movable blade 6 descends about the rotary shaft 4 by the operation of the driving lever 5 protruded from the cam. When cutting the paper 20 while the front edge of the movable blade 6 is lowered about the rotating shaft 4, the fixed blade 2 of the lower side of the movable blade 6 is both ends Of the locking jaw (7) (7 ') is inserted into the locking projection (8) (8') of the main frame 1 is fixed, as well as the leaf spring (10) (10 ') on the rear of the fixed blade (2) ) Is installed and pushes toward the front while supporting the fixed blade (2).

According to the paper automatic cutting device of the cash register printer according to the present invention as described above, the rear of the fixed blade is installed on both sides of the plate spring which is installed in the main frame as a screw and pushes the fixed blade forward, Since the front surfaces of the blade and the fixed blade intersect with each other, there is no need to install a separate leaf spring on the body of the movable blade, making it easy to manufacture and assemble by a simple structure. It prevents sagging or tearing and has an excellent effect of performing a reliable cutting operation.

Claims (1)

A fixed blade (2) is provided on the main frame (1), and a return spring (3) and a rotating shaft (4) are installed at the front and rear ends thereof, and one end of the driving lever (5) is raised to raise and lower. In the automatic paper cutting device consisting of a movable blade (5), the locking projections (7) (7 ') are formed on both sides of the fixed blade (2), the locking projection (8) installed in the main frame (1) ( 8 ') is fixed and coupled to the main frame (1) as a screw (9) at the rear of the fixed blade (2), the leaf spring (10, 10') for pushing the fixed blade (2) forward Paper automatic cutting device for a cash register printer, characterized in that consisting of a snowfall configuration.