CN211106405U

CN211106405U - Medical dry film thermal printer

Info

Publication number: CN211106405U
Application number: CN201921760931.6U
Authority: CN
Inventors: 赵哲
Original assignee: Weihai Zhewen Intelligent Technology Co ltd
Current assignee: Weihai Zhewen Intelligent Technology Co ltd
Priority date: 2019-10-21
Filing date: 2019-10-21
Publication date: 2020-07-28
Anticipated expiration: 2029-10-21

Abstract

The utility model provides a medical dry film thermal printer, include the film cassette system, get a system, film transport system, thermal printing head, print the rubber roll, go out a system, go out the film cassette and be used for making the film cassette system in wait that the thermal film of printing keeps dry film drying system, film drying system includes cooling fan and dry hot air runner, when cooling fan provides wind-force and supplies thermal printing head temperature regulation, the thermal printing head's radiant heat is beaten as the film drying hot-blast, can follow in the dry hot air runner gets into film cassette system. The medical dry film thermal printer can effectively utilize the residual heat energy generated by the self heat accumulation of the thermal printing head to dry and place the thermal film in the film box system, can effectively prevent the thermal film from printing adhesion, and avoids printing faults or printing errors.

Description

Medical dry film thermal printer

Technical Field

The utility model relates to a thermal printer technical field especially relates to a medical dry-type film thermal printer.

Background

The modern digital thermal film printer for medical use generally comprises a thermal printing head for supplying printing energy, a plurality of thermal heating element units linearly arranged according to a certain resolution are arranged on the thermal printing head, and a driving chip is arranged corresponding to each heating element unit. The image information recording heat-sensitive medium applies a certain pressure through the rubber roller of the elastic material, and moves along the direction vertical to the heating line of the thermal printing head in a friction contact way, the heating unit generates Joule effect by applying corresponding pulse power to the heating unit of the thermal printing head, and the printing electric energy is converted into heat energy, when the heat-sensitive medium contacts and passes through the heating unit under the rotation driving of the elastic rubber roller, the heat energy generated by the heating unit is transferred to the surface of the heat-sensitive medium, and the heat-sensitive coating material of the heat-sensitive medium is heated to generate chemical reaction or physical change, so that the visible image information with the concentration corresponding to the printing energy is formed on the heat-sensitive medium.

In a conventional medical dry film thermal printing system for medical diagnosis, a medical image output medium such as CT, MRI, etc. for medical image diagnosis, one of the direct thermal type thermal films is generally a thermal sensitive film formed by forming a thermal sensitive coating layer in which a direct thermal organic silver salt and a reducing agent are mixed on a transparent support (such as PET), and the organic silver salt is chemically reduced under the influence of heat to form a visible concentration phenomenon of metallic silver, thereby forming a medical diagnosis image.

The modern thermal film suitable for the medical dry film thermal printer usually adopts box-packed films with different specifications and sizes, and about dozens to hundreds of films are combined into a stack and placed in a box system of the printer. When the film thermal printer is used for printing, the uppermost thermal film of the film box is extracted to reach the thermal printing head through the film conveying system by the film taking system in the film rubbing mode or the film sucking mode of the film thermal printer, and then the printing output is carried out.

The above described cassette system of the thermal film printer is generally configured as an independent semi-enclosed space, that is, a space having an opening at the upper end, when the thermal film is placed for a long time, or in the case of weather or external environment moisture, adhesion between the films may easily occur, and when the above described film taking system extracts the films for transportation, several films are easily transported by adhesion, resulting in printing failure or printing error.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that exists among the prior art, the utility model provides a medical dry film thermal printer to can effectively prevent the film adhesion, avoid printing the trouble or print the mistake.

In order to achieve the above object, the present invention provides a medical dry film thermal printer, which comprises a film box system for holding a thermal film to be printed, a film taking system for taking the thermal film to be printed out of the film box system, a film conveying system for conveying the taken thermal film to be printed to a thermal printing head, the thermal printing head for providing printing energy, a heating unit for pressing the thermal film to be printed to contact with the thermal printing head and rotating at a preset speed, a printing rubber roller for driving the thermal film to move forward along a printing direction by friction, a film discharging system for discharging the printed thermal film, a film discharging box for holding the printed thermal film, and a film drying system for keeping the thermal film to be printed in the film box system dry, the film drying system comprises a cooling fan and a hot air drying flow channel, wherein the cooling fan provides wind power for the thermal printing head to adjust the temperature, and meanwhile, the radiation heat of the thermal printing head is used as film drying hot air and can enter the film box system along the hot air drying flow channel.

The beneficial effects of this scheme lie in that above-mentioned medical dry film thermal printer can utilize the remaining heat energy that thermal print head self heat accumulation produced effectively, need not other stoving subassembly and the heat source of reconfiguration, wind-force through cooling fan provides, through dry hot-blast runner continuously to the hot-blast transmission of drying to the spool box system that holds the thermal film, the dry placement of the thermal film in the spool box system has been guaranteed, thereby an effectual thermal film drying system has been formed, the emergence of the adhesion is printed to the thermal film has been prevented effectively, avoid printing the trouble or print the mistake, the result of use that has more simple and convenient high efficiency and energy saving.

Drawings

Fig. 1 shows a schematic structural view of a film drying system of a medical dry film thermal printer according to the present invention.

Reference numerals: 1-medical dry film thermal printer, 2 a-to-be-printed thermal film, 2 b-printed thermal film, 3-film taking system, 4-film box system, 5 a-film conveying driving component, 5 b-film conveying channel, 6-drying hot air channel, 7-thermal printing head, 8-metal heat dissipation device, 9-cooling fan, 10-film discharging system, 11-film discharging box and 12-printing rubber roller.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings.

As shown in fig. 1, the medical dry film thermal printer 1 of the present invention comprises a cassette system 4 for holding a thermal film 2a to be printed, a film taking system 3 for taking out the thermal film 2a to be printed from the cassette system 4, a film carrying system for transferring the taken out thermal film 2a to be printed to a thermal print head 7, the thermal print head 7 for providing an energy for printing, a thermal printer for printing, is controlled to press the thermo-chromatic film 2a to be printed against the heat-generating body unit of the thermal head 7, and rotates at a preset speed, a printing rubber roller 12 driving the thermal sensitive film to move forward along the printing direction by friction, a film discharging system 10 for discharging the printed thermal sensitive film 2b, a film discharging box 11 for containing the printed thermal sensitive film 2b, and a film drying system for keeping dry the thermal sensitive film 2a to be printed in the film box system 4.

In this embodiment, the cartridge system 4 is used for storing the thermal films 2a to be printed in different sizes, and the thermal films 2a to be printed are stored in a sheet form in a manner of tens or hundreds of sheets, and are usually placed at the bottom of the printer, and in order to maintain a ventilation and clean environment, the cartridge system 4 is generally in an independent semi-closed state, that is, the upper end of the cartridge system 4 is open.

The film taking system 3 is generally configured at one side of the film cassette system 4 in a rubbing mode or a sucking mode, and when the printer system receives a printing command, the film taking system 3 acts to extract the uppermost thermal sensitive film 2a to be printed in the film cassette system 4 for carrying.

The film transport system generally includes a film transport drive unit 5a and a film transport path 5b, and the film transport path 5b is designed in an arc-shaped configuration to ensure continuous and smooth transport of the thermo-chromatic film 2a to be printed in a preset direction of motion.

The thermal head 7 is disposed at the end of the film transport path 5b, the thermal head 7 includes a plurality of continuous heating element units linearly disposed according to a predetermined resolution, and a driving chip disposed corresponding to each heating element unit, the plurality of heating element units linearly disposed are disposed in a direction perpendicular to the film transport direction, and a metal heat sink 8 is disposed on the back of the thermal head 7.

The printing rubber roller 12 is configured at the tail end of the film conveying channel 5b and is arranged opposite to the thermal printing head 7, when the printer prints the film, a rubber roller driving system of the printer can apply certain rubber roller pressure, so that the printing rubber roller 12 presses the thermal film 2a to be printed to be in contact with a heating body unit of the thermal printing head 7, meanwhile, the rubber roller driving system can control the printing rubber roller 12 to rotate at a preset speed, and the thermal film is driven to move forwards along the printing direction through friction.

The film discharging system 10 discharges the printed thermo-chromatic film 2b into the film discharging cassette 11.

The film drying system comprises a cooling fan 9 and a drying hot air flow channel 6, wherein the cooling fan 9 provides wind power for the thermal printing head 7 to adjust the temperature, and meanwhile, the radiation heat of the thermal printing head 7 is taken as film drying hot air and enters the film box system 4 along the drying hot air flow channel 6, so that a film drying wind power circulation system is formed.

The cooling fan 9 is used for adjusting the temperature of the thermal print head 7, the thermal print head 7 is used as a heating element for providing printing energy, when the printing is operated, the temperature of the heating element unit is generally over 200 ℃, the heating element unit generates heat energy which is mainly used for energy conversion of the thermal film, and meanwhile, a part of the heat energy is transferred to the metal heat dissipation device 8. In order to ensure the printing quality and the printing speed, the base temperature of the thermal head 7 is usually kept in a constant temperature region between 50 ℃ and 70 ℃, and therefore, the cooling fan 9 provides a cooling means for adjusting the base temperature of the thermal head 7.

The hot air drying flow channel 6 is arranged at the downstream side of the cooling fan 9, when the cooling fan 9 provides wind power for the thermal printing head 7 to adjust the temperature, the radiation heat of the thermal printing head 7 is taken as hot air for drying the films and enters the film box system 4 along the hot air drying flow channel 6, and thus a wind power circulation system for drying the films is formed.

The utility model relates to a medical dry film thermal printer can utilize the remaining heat energy that thermal print head self heat accumulation produced effectively, need not to reconfigure other stoving subassemblies and heat source, the wind-force that provides through cooling fan, through dry hot-blast runner continuously to the hot-blast transmission of drying to the spool box system that holds the thermal film, the dry placement of the thermal film in the spool box system has been guaranteed, thereby an effectual thermal film drying system has been formed, the emergence of adhesion has been prevented effectively to the thermal film from printing, avoid printing the trouble or printing the mistake, the result of use that has more simple and convenient high efficiency and energy saving has.

Claims

1. A medical dry film thermal printer comprises a film box system for containing thermal films to be printed, a film taking system for taking the thermal films to be printed out of the film box system, a film conveying system for conveying the taken thermal films to be printed to a thermal printing head, the thermal printing head for providing printing energy, a heating element unit for controlling the thermal films to be printed to be in pressing contact with the thermal printing head and rotate at a preset speed when printing, a printing rubber roller for driving the thermal films to move forwards along a printing direction through friction, a film discharging system for discharging the printed thermal films and a film discharging box for containing the printed thermal films, and is characterized in that: still including being used for making the thermosensitive film that treats printing in the spool box system keep dry film drying system, film drying system includes cooling fan and dry hot air runner, when cooling fan provided wind-force and supplies the temperature regulation of thermal print head, the radiant heat of thermal print head is regarded as the dry hot-blast of film, can follow in the dry hot air runner gets into the spool box system.