Cutter structure capable of supporting thick paper cutting, full cutting and half cutting and printer

Abstract

The utility model discloses a cutter structure capable of supporting thick paper cutting, full cutting and half cutting and a printer, the cutter structure capable of supporting thick paper cutting, full cutting and half cutting comprises an upper shell, a lower shell, a cutter, a direct current motor and an eccentric gear; the cutter is arranged between the upper shell and the lower shell; the upper shell is provided with a second stroke guide column; one end of the cutter is a blade end; the blade end is sawtooth-shaped; the cutter is provided with a long second stroke hole in the paper cutting direction. The second stroke guide column is arranged in the second stroke hole; a long first stroke hole is transversely formed in one side of the second stroke hole; the eccentric gear is provided with a first stroke guide column; the first stroke guide column is arranged in the first stroke hole; the eccentric gear is meshed with a rotating shaft gear of the direct-current motor; an included angle is formed between the connecting line of the center of the eccentric gear and the center of the first stroke guide column and the paper cutting direction. According to the cutter structure capable of supporting thick paper cutting, full cutting and half cutting, the functions of thick paper cutting, full cutting and half cutting are achieved on the same cutter.

Description

Technical Field

[0001] The utility model relates to the technical field of printer cutters, in particular to a cutter structure and a printer capable of supporting cutting thick paper, full cutting and half cutting. Background Art

[0002] Currently, most thermal printer cutters on the market use stepper motors and DC motors to drive the cutter stroke. The stepper motor can achieve full cutting and half cutting, but the stepper motor has low power and cannot cut thick paper. Generally, it can only support printing paper with a thickness of about 0.1MM. The other method uses a DC motor. Although it can cut thick paper (up to about 0.2), it can only support full cutting or half cutting, and cannot support both full cutting and half cutting. Utility Model Content

[0003] In order to solve the above technical problems, the present invention provides a cutter structure and a printer that can support cutting thick paper and full cutting or half cutting. The cutter structure that can support cutting thick paper and full cutting or half cutting includes an upper shell, a lower shell, a cutter, a DC motor and an eccentric gear.

[0004] The cutter is arranged between the upper shell and the lower shell;

[0005] The upper housing is provided with a second travel guide column;

[0006] One end of the cutter is a blade end; the blade end is serrated;

[0007] The cutter is provided with an elongated second stroke hole along the paper cutting direction; the second stroke guide pin is provided in the second stroke hole; and an elongated first stroke hole is provided laterally on one side of the second stroke hole;

[0008] The eccentric gear is provided with a first stroke guide post; the first stroke guide post is arranged in the first stroke hole; the eccentric gear is meshed with the shaft gear of the DC motor;

[0009] An angle is formed between a line connecting the center of the eccentric gear and the center of the first stroke guide column and the paper cutting direction.

[0010] Preferably, a sensing device is provided on one side of the eccentric gear; the sensing device detects the rotation angle of the eccentric gear.

[0011] Preferably, the upper shell is provided with a limiting through hole; the second stroke guide column passes through the limiting through hole and is arranged in the second stroke hole.

[0012] The utility model also provides a printer, which adopts any of the above-mentioned cutter structures capable of supporting cutting thick paper, full cutting, and half cutting.

[0013] The utility model provides a cutter structure that can support cutting thick paper and full cutting and half cutting. Through the upper shell, the lower shell, the cutter, the DC motor, the eccentric gear, the first stroke guide column, the second stroke guide column, the first stroke hole, the second stroke hole, and the structure in which the angle between the line connecting the center of the eccentric gear and the center of the first stroke guide column and the paper cutting direction is formed, the thick paper cutting function, the full cutting function and the half cutting function are realized on the same cutter, the structure is ingenious and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 An exploded diagram of the cutter structure provided in an embodiment of the present invention, which can support cutting thick paper, full cutting, and half cutting;

[0015] Figure 2 This is a top view of the assembly of the cutter, lower housing, DC motor, and eccentric gear;

[0016] Figure 3 Schematic diagram of the positions of the eccentric gear rotation center as point A, the first stroke guide post center as point B, and the projection points D and C of the first stroke guide post center in the cutter movement direction after the DC motor drives the eccentric gear to rotate forward and reverse by an angle E;

[0017] Among them: 10, upper shell; 11, limit through hole; 20, lower shell; 30, cutter; 31, first stroke hole; 32, second stroke hole; 40, DC motor; 41, worm; 50, eccentric gear; 51, first stroke guide column; 60, induction device. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments. However, the following embodiments are only preferred embodiments of the present invention, not all of them. Based on the embodiments in the implementation manner, other embodiments obtained by those skilled in the art without making any creative work are all within the scope of protection of the present invention. The experimental methods in the following embodiments are all conventional methods unless otherwise specified. The materials, reagents, etc. used in the following embodiments are all commercially available unless otherwise specified.

[0019] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model in specific circumstances.

[0021] The present invention provides a cutter structure and a printer capable of supporting cutting thick paper, full cutting, and half cutting. The cutter structure capable of supporting cutting thick paper, full cutting, and half cutting comprises an upper housing 10, a lower housing 20, a cutter 30, a DC motor 40, and an eccentric gear 50.

[0022] The cutter 30 is disposed between the upper housing 10 and the lower housing 20;

[0023] The upper housing 10 is provided with a second travel guide post;

[0024] One end of the cutter 30 is a blade end; the blade end is serrated;

[0025] The cutter 30 is provided with an elongated second stroke hole 32 along the paper cutting direction; the second stroke guide pin is provided in the second stroke hole 32; and an elongated first stroke hole 31 is provided laterally on one side of the second stroke hole 32;

[0026] The eccentric gear 50 is provided with a first travel guide post 51 ; the first travel guide post 51 is provided in the first travel hole 31 ; the gear of the eccentric gear 50 is engaged with the worm 41 on the rotating shaft of the DC motor 40 ;

[0027] A line connecting the center of the eccentric gear 50 and the center of the first travel guide post 51 forms an angle with the paper cutting direction.

[0028] When implementing it specifically, Figure 1-3 As shown, the cutter structure that can support cutting thick paper and full cutting and half cutting includes an upper shell 10, a lower shell 20, a cutter 30, a DC motor 40 and an eccentric gear 50, wherein:

[0029] The cutter 30 is disposed between the upper housing 10 and the lower housing 20; a second travel guide post (not shown) is provided on the bottom surface of the upper housing 10;

[0030] One end of the cutter 30 is a blade end, and the blade end is serrated;

[0031] like Figure 1As shown, the cutter 30 is provided with an elongated second stroke hole 32 along the paper cutting direction (the direction in which the cutting edge of the cutter cuts the printing paper); a second stroke guide post is disposed within the second stroke hole 32; the paper cutting direction of the cutter is limited in the longitudinal direction of the second stroke hole 32 by the second stroke guide post and the second stroke hole 32; an elongated first stroke hole 31 is disposed laterally on one side of the second stroke hole 32; an eccentric gear 50 is provided with a first stroke guide post 51; the first stroke guide post 51 is disposed within the first stroke hole 31; and the eccentric gear 50 meshes with the shaft gear of the DC motor 40.

[0032] like Figure 2 、 Figure 3 As shown, the rotation center of the eccentric gear 50 is point A; the center of the first-stroke guide post 51 is point B; after the DC motor 40 drives the eccentric gear 50 to rotate by an angle E, the projection point of the center of the first-stroke guide post 51 in the paper cutting direction is point C; after the DC motor 40 drives the eccentric gear 50 to rotate by an angle E, the projection point of the center of the first-stroke guide post 51 in the paper cutting direction is point D;

[0033] like Figure 3 As shown, a line connecting the center point A of the eccentric gear 50 and the center point B of the first stroke guide post 51 forms an angle with the paper cutting direction.

[0034] When the DC motor 40 drives the eccentric gear 50 to rotate in reverse (with point A as the rotation center) after an angle of E, the position of the first stroke guide post 51 is as follows: Figure 3 As shown in the left position in the paper cutting direction, at this time, the projection point of the first stroke guide post 51 in the paper cutting direction is point C;

[0035] When the DC motor 40 drives the eccentric gear 50 to rotate in reverse (with point A as the rotation center) after an angle of E, the position of the first stroke guide post 51 is as follows: Figure 3 As shown in the right position in the paper cutting direction, at this time, the projection point of the first stroke guide post 51 in the paper cutting direction is point D;

[0036] There is a distance difference between point C and point D in the paper cutting direction, so the DC motor 40 drives the eccentric gear 50 to rotate forward and reverse to change the ejection stroke of the cutter 30, thereby achieving full cutting and half cutting; and, through the elongated shape design of the first stroke hole 31 and the second stroke hole 32, the stroke distance of the cutter 30 is long, which can adapt to the cutting of thick printing paper.

[0037] During operation, full cutting and half cutting of printing papers of different thicknesses can be achieved by setting the forward and reverse rotation angles of the eccentric gear 50 .

[0038] The embodiment of the present invention provides a cutter structure that can support cutting thick paper and full cutting and half cutting, and achieves the purpose of cutting thick paper by using a DC motor; through the upper shell, lower shell, cutter, DC motor, eccentric gear, first stroke guide column, second stroke guide column, first stroke hole, second stroke hole, and a structure in which the angle between the line connecting the center of the eccentric gear and the center of the first stroke guide column and the paper cutting direction is formed, the thick paper cutting function, full cutting function and half cutting function are achieved on the same cutter, and the structure is ingenious and easy to use.

[0039] When implementing it specifically, Figure 3 As shown, a sensing device 60 is provided on one side of the eccentric gear 50; the sensing device 60 is an existing sensor for detecting the rotation angle of the gear, including but not limited to a photoelectric sensor, etc.; the sensing device 60 detects the rotation angle of the eccentric gear 50; when the sensing device 60 detects that the eccentric gear 50 rotates to a set angle, it triggers the DC motor 40 to drive the eccentric gear 50 to reset.

[0040] Furthermore, the upper shell 10 is provided with a limiting through hole 11 ; the second stroke guide column passes through the limiting through hole 11 and is provided in the second stroke hole 32 .

[0041] The utility model also provides a printer, which adopts any of the above-mentioned cutter structures capable of supporting cutting thick paper, full cutting, and half cutting.

[0042] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cutter structure capable of cutting thick paper, full cutting, and half cutting, characterized by: The invention comprises an upper housing (10), a lower housing (20), a cutter (30), a DC motor (40) and an eccentric gear (50), wherein: The cutter (30) is arranged between the upper shell (10) and the lower shell (20); The upper housing (10) is provided with a second travel guide column; One end of the cutter (30) is a blade end; the blade end is sawtooth-shaped; The cutter (30) is provided with an elongated second stroke hole (32) along the paper cutting direction; the second stroke guide post is provided in the second stroke hole (32); and an elongated first stroke hole (31) is provided laterally on one side of the second stroke hole (32); The eccentric gear (50) is provided with a first stroke guide post (51); the first stroke guide post (51) is provided in the first stroke hole (31); the eccentric gear (50) is meshed with the rotating shaft gear of the DC motor (40); An angle is formed between a line connecting the center of the eccentric gear (50) and the center of the first stroke guide post (51) and the paper cutting direction.

2. The cutter structure capable of supporting thick paper cutting, full cutting, and half cutting according to claim 1, characterized in that: A sensing device (60) is provided on one side of the eccentric gear (50); the sensing device (60) detects the rotation angle of the eccentric gear (50).

3. The cutter structure capable of supporting thick paper cutting, full cutting, and half cutting according to claim 1, characterized in that: The upper shell (10) is provided with a limiting through hole (11); the second travel guide column passes through the limiting through hole (11) and is arranged in the second travel hole (32).

4. A printer, characterized in that: The cutter structure according to any one of claims 1 to 3 is used, which can support cutting thick paper, full cutting and half cutting.

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