CN111746143A

CN111746143A - Device capable of double-color printing

Info

Publication number: CN111746143A
Application number: CN202010610632.5A
Authority: CN
Inventors: 刘萍; 祁明科
Original assignee: Nanjing Fujitsu Electronic Information Technologies Co Ltd
Current assignee: Nanjing Fujitsu Electronic Information Technologies Co Ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2020-10-09

Abstract

The invention discloses a device capable of printing in double colors, which comprises a frame, wherein the frame comprises a carriage and a printing head, the carriage is provided with a motor, the power output end of the motor is provided with an end face cam, one side of the printing head, which is close to the motor, is provided with a swing rod, the side part of the swing rod is provided with a swing rod shaft fixed on the printing head, the end face cam is contacted with the upper part of the swing rod, a plate spring is arranged between the lower part of the motor and the swing rod, one side, which is far away from the motor, of the lower part of the swing. The motor drives the cam to rotate to push the swing rod to rotate around the swing rod shaft so as to realize the swing of the tape guide frame, and further realize the switching of double-color printing.

Description

Device capable of double-color printing

Technical Field

The invention belongs to the technical field of printers, and particularly relates to a device capable of achieving double-color printing.

Background

The traditional printer can only realize printing in one color, when two colors exist on the bill or a red seal exists on the bill. Traditional printer will not print out, needs manual operation, and efficiency is lower.

Disclosure of Invention

The invention aims to solve the problem that the traditional printer in the prior art cannot automatically switch and print two colors, and provides a device capable of printing two colors.

In order to achieve the purpose, the invention adopts the following technical scheme:

the device capable of achieving double-color printing comprises a rack, the rack comprises a carriage and a printing head, a motor is arranged on the carriage, an end face cam is arranged at the power output end of the motor, a swing rod is arranged on one side, close to the motor, of the printing head, a swing rod shaft fixed to the printing head is arranged on the side portion of the swing rod, the swing rod shaft is parallel to the end face cam, the swing rod swings back and forth around the swing rod shaft, the end face cam is in contact with the upper portion of the swing rod, the cam of the end face cam can push the upper portion of the swing rod along with rotation, a plate spring is arranged between the lower portion of the motor and the swing rod, the lower portion of the swing rod receives the traction of the plate spring when swinging towards the printing head, a guide belt frame is arranged.

As a further preferable scheme, a two-color ribbon is arranged in the conduction band frame.

As a further preferable mode, the swing link is in an inverted "" shape.

As a further preferable mode, the swing rod shaft is located at the center of the swing rod.

The motor drives the cam to rotate to push the swing rod to rotate around the swing rod shaft so as to realize the swing of the tape guide frame, and further realize the switching of double-color printing; the invention can realize simultaneous printing of two colors, and automatic color switching, and is beneficial to improving office automation.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

fig. 2 is a schematic structural diagram of the tape guide frame in this embodiment.

In the figure, 1, a frame; 2. a motor; 3. a carriage is typed; 4. a plate spring; 5. a swing rod shaft; 6. a print head; 7. a swing rod; 8. a cam; 9. and a tape guide frame.

Detailed Description

A double-color needle type printing device comprises a frame 1 of a printer, as shown in figures 1 and 2, the frame 1 comprises a carriage 3 and a printing head 6, the carriage 3 is provided with a switching device, the switching device comprises a motor 2 arranged on the carriage 3, an end cam 8 is connected to the motor 2, one side of the printing head 6 close to the motor 2 is provided with a swing rod shaft 5, the swing rod shaft 5 is rotatably provided with a swing rod 7, the end cam 8 abuts against the upper end of the swing rod 7, a plate spring 4 is arranged between the lower end of the swing rod 7 and the carriage 3, and the plate spring 4 enables the upper end of the swing rod 7 to have a tendency of moving towards the end cam 8; the bottom of the oscillating bar 7 is connected with a tape guide frame 9, and the tape guide frame 9 is arranged at the bottom of the printing head 6.

Further, the swing rod 7 is in an inverted "" shape and is erected outside the printing head 6.

Further, the swing rod shaft 5 is arranged in the middle of the swing rod 7 in a penetrating mode.

Further, a two-color ribbon is arranged in the ribbon guide frame 9.

Description of specific embodiments:

as shown in fig. 2, the ribbon is in a position for printing a first color in an initial state, when a second color is required to be printed, the motor 2 rotates to drive the cam 8 to rotate, the end face of the cam 8 is attached to the swing rod 7, and the swing rod 7 rotates around the swing rod shaft 5 counterclockwise under the action of the plate spring 4, so that the ribbon guide frame 9 is driven to rotate by a certain angle to move the ribbon. Thereby realizing the switching of the second color; when the printing of the first color is to be continued after the printing is completed, the motor 2 continues to rotate. The swing rod 7 is pushed to rotate clockwise, the guide belt frame 9 is pulled back to the initial position, and the switching action of two colors is realized.

It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

The above embodiments are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modifications made on the basis of the technical scheme according to the technical idea of the present invention fall within the protection scope of the present invention. While the embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. An apparatus capable of two-color printing, comprising a frame (1), the frame (1) comprising a carriage (3) and a print head (6), characterized in that: the printer is characterized in that a motor (2) is arranged on the carriage (3), an end face cam (8) is arranged at the power output end of the motor (2), a swing rod (7) is arranged on one side, close to the motor (2), of the printing head (6), a swing rod shaft (5) fixed to the printing head (6) is arranged on the side portion of the swing rod (7), the swing rod shaft (5) is parallel to the end face cam (8), the swing rod (7) swings back and forth around the swing rod shaft (5), the end face cam (8) is in contact with the upper portion of the swing rod (7), the cam of the end face cam (8) can push the upper portion of the swing rod (7) along with rotation, a plate spring (4) is arranged between the lower portion of the motor (2) and the swing rod (7), the lower portion of the swing rod (7) is subjected to the drag of the plate spring (4) when swinging towards the printing head (6), a ribbon guide frame (9) is, the tape guide (9) is located at the bottom of the print head (6).

2. An apparatus capable of two-color printing according to claim 2, wherein: a double-color ribbon is arranged in the ribbon guide frame (9).

3. An apparatus capable of two-color printing according to claim 1, wherein: the swing rod (7) is in an inverted 'T' shape.

4. An apparatus capable of two-color printing according to claim 1, wherein: the swing rod shaft (5) is positioned at the center of the swing rod (7).