CN109203730B

CN109203730B - Thermal transfer printer

Info

Publication number: CN109203730B
Application number: CN201810913054.5A
Authority: CN
Inventors: 唐国初; 倪继超; 李壮志
Original assignee: Hunan Dingyi Zhiyuan Technology Development Co Ltd
Current assignee: Hunan Dingyi Zhiyuan Technology Development Co Ltd
Priority date: 2018-08-13
Filing date: 2018-08-13
Publication date: 2024-02-23
Anticipated expiration: 2038-08-13
Also published as: CN109203730A

Abstract

The invention provides a thermal transfer printer, which comprises N groups of printing suite, wherein each group of printing suite comprises a color-releasing coil (1), a printing head assembly (2) and a color-collecting coil (3), the 4 groups of printing suite are arranged on the upper half part of a printer frame (4), a paper placing coil (6), a paper collecting coil (7) and a motor are arranged on the lower half part of the printer frame (4), and a main control system is arranged on the back of the printer frame (4), wherein N is more than or equal to 4. The thermal transfer printer provided by the invention has the advantages that the printing head components are modularized, the later improvement of the printer is facilitated, the number of the printing head components can be increased or reduced according to actual conditions, and the operation of a user is facilitated. At the same time, the printhead assembly with a set of black carbon ribbons is added, providing a better way to save ribbon.

Description

Thermal transfer printer

Technical Field

The invention belongs to the technical field of thermal transfer printer structures, and particularly relates to a thermal transfer printer.

Background

Characters and patterns printed by the thermal transfer printer can be stored for a long time without fading, and cannot be discolored and deformed due to high temperature. The thermal transfer technology is to transfer the carbon powder coating on the carbon belt onto paper or other kinds of materials by using a special carbon belt in a heating mode. As technology matures and spreads, more and more thermal transfer finished products are appearing in the field of view of people.

However, most of the current thermal transfer printers are smaller than or equal to three printing heads, the printed colors are single, and most of the printers with the three printing heads adopt three primary colors of carbon tapes, so that products with different colors can be printed, but black which is commonly used in the current power industry is larger in consumption of an ink ribbon in the printing process, and the requirements on the printers in the printing process are higher because the black color is darker. In addition, every time a group of printing heads are added, the printing heads are required to be researched and developed again, the modular manufacturing management is not realized in the earlier-manufactured printer products, and the development of the thermal transfer printer is restricted to a certain extent.

Disclosure of Invention

In order to solve the above-described problems, the present invention provides a thermal transfer printer.

The specific technical scheme is as follows:

the thermal transfer printer comprises N groups of printing suite, each group of printing suite comprises a color-releasing coil (1), a printing head assembly (2) and a color-collecting coil (3), the N groups of printing suite are arranged on the upper half part of a printer frame (4), a paper placing roll (6), a paper collecting roll (7) and a motor are arranged on the lower half part of the printer frame (4), and a main control system is arranged on the back of the printer frame (4), wherein N is more than or equal to 4.

Preferably, each set of printing kits further comprises an electromagnetic brake (5).

Preferably, the color-releasing strip roll (1) is connected with an electromagnetic brake (5).

Preferably, each set of printing kits further comprises a torque motor.

Preferably, the color-collecting tape roll (3) is connected with a torque motor.

Preferably, the unreeling roll (6) and the reeling roll (7) are connected by a printing medium.

Preferably, the printhead assembly (2) comprises a motor, a screw, a guide rail, a cooling assembly and a printhead.

Preferably, a paper cutting module is also included.

Preferably, the paper cutting module comprises a cutter and a guide wheel.

Preferably, an impression cylinder is also included.

Preferably, the print medium passes between the printhead and the impression cylinder.

Preferably, a color band is also included.

Preferably, the ribbon passes through the pay-off roll (1), the printing head and the take-up roll (3) in sequence.

Preferably, the color of the color band is any one of CMYK.

Preferably, a host is also included.

Preferably, the host is connected to a main control system.

Preferably, the connection mode of the host computer and the main control system comprises one or more of wire, wireless and Bluetooth.

Compared with the prior art, the thermal transfer printer provided by the invention has the following advantages:

the thermal transfer printer provided by the invention has the advantages that the printing head components are modularized, the later improvement of the printer is facilitated, the number of the printing head components can be increased or reduced according to actual conditions, and the operation of a user is facilitated. At the same time, the printhead assembly with a set of black carbon ribbons is added, providing a better way to save ribbon.

Drawings

FIG. 1 is a schematic plan view of a thermal transfer printer according to the present invention;

FIG. 2 is a schematic perspective view of a thermal transfer printer according to the present invention;

FIG. 3 is a perspective view of each set of printing suites;

fig. 4 is a plan view of each set of printing kits.

In the figure:

1 roll-off 2 print head assembly 3 roll-off 4 printer housing 5 electromagnetic brake

6 paper roll placing 7 paper roll collecting

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Fig. 1 and 2 are plan views and perspective views of a thermal transfer printer according to the present invention, including N groups of printing suites, each group of printing suites includes a color-releasing ribbon roll (1), a print head assembly (2), a color-receiving ribbon roll (3), the N groups of printing suites are installed at the upper half part of a printer frame (4), a paper placing roll (6), a paper receiving roll (7) and a motor are provided at the lower half part of the printer frame (4), the paper placing roll (6) and the paper receiving roll (7) are connected through printing media, and a main control system is provided at the back of the printer frame (4), wherein N is greater than or equal to 4.

Fig. 3 and 4 are perspective and plan views of each printing set, and the thermal transfer printer according to the present invention further comprises an electromagnetic brake (5) and a torque motor, wherein the color-releasing coil (1) is connected with the electromagnetic brake (5), and the color-receiving coil (3) is connected with the torque motor. The electromagnetic brake (5) can brake the color-releasing roll (1) according to actual conditions, for example, when the printing head is lifted and the color-releasing roll (1) is not needed to output the color ribbon. The torque motor provides power for the color receiving belt of the color receiving belt roll (3). In the whole pivoted in-process of putting color coil (1) and receipts color coil (3), torque motor provides their rotatory power, and torque motor drives receipts color coil (3) and rotates promptly, and the typewriter ribbon twines on putting color coil (1) and receipts color coil (3), and when receipts color coil (3) rotated, through the traction of typewriter ribbon, putting color coil (1) also follows the rotation. The torque motor transmits the provided power data to the main control system, and the main control system judges the optimal power according to the degree of the tensioned ribbon in the printing process. If the printing head is lifted, the torque motor reduces the power provided, and simultaneously, the electromagnetic brake (5) stops the rotation of the color-releasing coil (1), the printing head is lifted, the color ribbon is tensioned, and the color-releasing coil (1) and the color-collecting coil (3) are not rotated any more.

The print head assembly (2) comprises a motor, a screw, a guide rail, a cooling assembly and a print head. The motor controls the screw rod, so as to control the printing head to move up and down along the guide rail, a cooling assembly is arranged on the printing head, water is used as cooling liquid in the invention, cooling water is introduced into the cooling assembly, and the printing head is cooled through water circulation. The motor is arranged at the uppermost end of the printing head assembly (2), and the lead screw and the guide rail are arranged between the motor and the printing head.

The thermal transfer printer further comprises a paper cutting module, wherein the paper cutting module comprises a cutter and a guide wheel, the guide wheel plays a role of traction, a sample chapter needing to be cut is guided to the position of the cutter, and the sample chapter is divided into proper units through the cutter. If the paper is not required to be cut, the paper is not required to enter the paper cutting module, and the paper is directly wound on the paper receiving roll (7), and the paper is taken out after printing.

The thermal transfer printer of the invention further comprises an impression cylinder. The impression cylinder is matched with the printing head to be used together, one end of the ribbon is connected with the color-releasing coil (1), the other end of the ribbon is connected with the color-receiving coil (3), and the ribbon sequentially passes through the color-releasing coil (1), the printing head and the color-receiving coil (3) from left to right; the printing medium sequentially passes through the paper unreeling roll (6), the printing head and the paper reeling roll (7) from left to right; the 1-group printing kit comprises color bands of one color, and the 4-group printing kit uses color bands of 4 colors. While the printing medium has only 1 roll, the starting point is at the paper roll (6), and the end point is at the paper roll (7). The color ribbon is arranged on the printing medium, and the colors on the color ribbon are printed on the printing medium through the heating of the printing head, so that the printing of characters and patterns is completed. In the printing process, the printing head is pressed down, the ribbon is pressed on the printing medium, the impression cylinder is arranged below the printing medium and plays a role of supporting, so that the ribbon is in closer contact with the printing medium, and meanwhile, the ribbon cannot slip.

The thermal transfer printer further comprises a paper feeding roller, the paper feeding roller is positioned on one side of the paper receiving roll (7), the motor drives the paper feeding roller to rotate, the rubber roller is closely contacted with the paper feeding roller on one side of the paper feeding roller, printing media pass through a gap between the rubber roller and the paper feeding roller and finally are wound on the paper receiving roll (7), or enter a paper cutting module, the paper feeding roller provides power for printing media transmission, and the rotating angular speed of the paper feeding roller is greater than or equal to the rotating angular speed of the paper receiving roll (7), so that stable operation of the printing media can be guaranteed.

The color of the color band used in the 4 groups of printing kits is any one of CMYK, and the color of the color band can be changed according to actual needs.

The thermal transfer printer further comprises a host machine, wherein the host machine is connected with the main control system, and the connection mode comprises one or more of wire, wireless and Bluetooth. The host can be a desktop computer, a notebook computer, a PAD, or the like. The host controls the main control system and thus the whole printer.

In the earlier stage preparation process of the printer, the color ribbon is arranged between the color-releasing coil (1) and the color-collecting coil (3), and meanwhile, the color ribbon is only partially wound on the color-collecting coil (3) through the printing head, so that excessive waste is avoided. When printing, the host computer control main control system, main control system control print head is pressed down, and the color release coil (1) begins to export the typewriter ribbon, and torque motor control receipts color coil (3) rotate, simultaneously, and the motor drives paper release (6) and receipts scroll (7) rotation, and the paper feed roller motor drives the paper feed roller and rotates, and print medium moves the direction of receiving scroll (7) from paper release (6) direction, and the paper feed roller provides the power that print medium moved, and what kind of colour needs to be printed, what kind of colour's print head generates heat, and the colour on the corresponding color tape prints on print medium. The cooling assembly on the printing head is responsible for cooling the printing head, and the cooling assembly is provided with a water inlet pipe and a water outlet pipe, so that the circulation of cooling water is ensured. After the sample chapter on the printing medium is printed, if a plurality of units are needed to be cut, the sample chapter enters into a paper cutting module, a guide wheel in the paper cutting module presses the printed sample chapter to reach the position of a cutter, the guide wheel is in traction on one hand, the anti-wrinkling function is also realized on the other hand, the printed sample chapter is prevented from being wrinkled in the operation process, the cut sample chapter is further caused to reach an ideal level, the main control system controls the cutter, the distance data of the sample chapter advancing are transmitted to the cutter, and the lifting and the lowering of the cutter are further controlled. If the paper is not required to be cut, the paper can directly enter the paper receiving roll (7), and after printing is finished, the paper is directly cut. When the printing head is pressed down, the printing medium and the ribbon are extruded together, the paper feeding roller provides power for the printing medium to move forward, and friction between the printing medium and the ribbon can provide power for the ribbon to move.

The invention provides an embodiment of 4 groups of printing kits, in the invention, the printing kits on a printer are modularized, if more groups of printing heads are needed, a plurality of groups of printing kits are directly installed without reinstalling each part, so that the printer is a better mode for operators and sales. At the same time, this also provides a way for reference to modularize all components on the printer, and no additional research and development is required for either the increase or decrease.

In summary, the thermal transfer printer provided by the invention has the advantages that the printing head assembly is modularized, the later improvement of the printer is facilitated, the number of the printing head assemblies can be increased or reduced according to actual conditions, and the operation of a user is facilitated. At the same time, the printhead assembly with a set of black carbon ribbons is added, providing a better way to save ribbon.

The above embodiments are all preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Any person skilled in the art to which the present invention pertains will appreciate that alterations in the equivalent structure and steps of the present invention fall within the scope of the claimed invention without departing from the spirit and scope of the invention disclosed herein.

Claims

1. The thermal transfer printer is characterized by comprising N groups of printing suite, wherein each group of printing suite comprises a color-releasing coil (1), a printing head assembly (2) and a color-collecting coil (3), the N groups of printing suite are arranged on the upper half part of a printer frame (4), a paper placing coil (6), a paper collecting coil (7) and a motor are arranged on the lower half part of the printer frame (4), and a main control system is arranged on the back of the printer frame (4), wherein N is more than or equal to 4;

the printing head assembly (2) comprises a motor, a screw rod, a guide rail, a cooling assembly and a printing head;

the motor controls the screw rod, so as to control the printing head to move up and down along the guide rail, a cooling component is arranged on the printing head, and the cooling liquid of the cooling component is water; cooling water is introduced into the cooling assembly, and the temperature of the printing head is reduced through water circulation; the motor is arranged at the uppermost end of the printing head assembly (2), and the lead screw and the guide rail are arranged between the motor and the printing head;

further comprising an impression cylinder;

the ink ribbon is also included; the impression cylinder is matched with the printing head to be used together, one end of the color ribbon is connected with the color-releasing coil (1), and the other end of the color ribbon is connected with the color-receiving coil (3); during printing, the printhead is depressed and the ribbon is pressed against the print medium, beneath which is the impression cylinder.

2. Thermal transfer printer according to claim 1, wherein each set of printing suites further comprises an electromagnetic brake (5).

3. Thermal transfer printer according to claim 2, wherein said roll of colour-releasing tape (1) is connected to an electromagnetic brake (5).

4. The thermal transfer printer of claim 1, wherein each set of printing kits further comprises a torque motor.

5. Thermal transfer printer according to claim 4, characterized in that the roll (3) is connected to a torque motor.

6. Thermal transfer printer according to claim 1, wherein the unreeling (6) and reeling (7) rolls are connected by a printing medium.

7. The thermal transfer printer of claim 1, further comprising a paper cutting module.

8. The thermal transfer printer of claim 7, wherein the cutting module comprises a cutter and a guide wheel.

9. The thermal transfer printer of claim 1 or 6 wherein the print medium passes between the printhead and the impression cylinder.

10. The thermal transfer printer according to claim 1, wherein the ribbon passes through a roll of unwind (1), a print head, and a roll of take-up (3) in that order.

11. The thermal transfer printer of claim 1 wherein the ribbon color is any one of CMYK.

12. The thermal transfer printer of claim 1, further comprising a host computer.

13. The thermal transfer printer of claim 12, wherein the host computer is coupled to a host control system.

14. The thermal transfer printer of claim 13, wherein the host computer is connected to the host control system in a manner that includes one or more of wired, wireless, and bluetooth.