CN215153122U

CN215153122U - Dye injection apparatus is printed in thermal sublimation based on electric field is with higher speed

Info

Publication number: CN215153122U
Application number: CN202120910880.1U
Authority: CN
Inventors: 吴兴泽; 唐国初
Original assignee: Hunan Dingyi Zhiyuan Technology Development Co Ltd
Current assignee: Hunan Dingyi Zhiyuan Technology Development Co Ltd
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2021-12-14
Anticipated expiration: 2031-04-29

Abstract

The utility model belongs to the technical field of thermal sublimation prints, concretely relates to dye injection apparatus is printed in thermal sublimation based on electric field is with higher speed. The device includes: an electric field acceleration device disposed below the printing medium; and an ionizing device for forming a discharge ionization space between the thermal sublimation ribbon and the printing medium. Among this technical scheme, gas ionization device is used for producing the electric field, and the electric field discharges in the air, and the sublimation dyestuff gas molecules of heat that will heat the back sublimation ionize into charged particle, and charged particle collides with other dyestuff molecules under the electric field acceleration effect to make more dyestuff molecules by the ionization, at last near the regional a large amount of plasmas that produce of typewriter ribbon. A large number of charged particles are subjected to directional accelerated motion under the action of the electric field accelerating device to form ion wind, and other dye molecules which are not ionized are brought to the surface of a printing medium together, so that the non-contact jet printing of the thermal sublimation color band is realized.

Description

Dye injection apparatus is printed in thermal sublimation based on electric field is with higher speed

Technical Field

The utility model belongs to the technical field of thermal sublimation prints, concretely relates to dye injection apparatus is printed in thermal sublimation based on electric field is with higher speed.

Background

The ink-jet printing adopts an electronic driving device to extrude and spray ink from an ink box to the surface of a printing medium so as to realize non-contact printing. The ink-jet printing can realize large-format printing, and the surface of the printing medium can be made rough. However, the inherent problems of ink-jet printing are always difficult to overcome, and on one hand, the problems of easy blockage of the spray head and ink waste exist, and on the other hand, the problem of continuous color cannot be solved. Thermal sublimation is known for its high quality continuous tone output.

The thermal sublimation printing technology is to utilize the sublimation principle to make the solid pigment directly sublimate into a gas phase through the heating of the thermal printing head, and then transfer to the medium. In practical applications, the carrier of the color dye is a ribbon, and the dye needs to be imprinted on the printing medium after sublimation. This necessitates that the ribbon be in direct contact with the print media for accurate positioning during dye sublimation printing.

It can be seen that printing swaths are greatly limited because dye sublimation ribbon printing requires direct contact of the ribbon with the print media. Although inkjet printing can realize non-contact large-format printing, the problems of easy blockage of a nozzle, ink waste and the like exist.

SUMMERY OF THE UTILITY MODEL

For solving prior art's is not enough, the utility model provides a dye injection apparatus is printed in thermal sublimation based on electric field is with higher speed, it can make thermal sublimation typewriter ribbon realize non-contact and print, simultaneously because need not ink and shower nozzle, does not have shower nozzle to block up and the extravagant scheduling problem of ink yet.

The utility model provides a technical scheme as follows:

the utility model provides a dye injection apparatus is printed in thermal sublimation based on electric field is accelerated, its includes thermal sublimation printer body, thermal sublimation printer body has the thermal sublimation of setting above thermal sublimation typewriter ribbon and beats the printer head, still includes:

an electric field acceleration device disposed below the printing medium;

and an ionizing device for forming a discharge ionization space between the thermal sublimation ribbon and the printing medium.

In the technical scheme, the gas ionization device is arranged between the thermal sublimation color band and the printing medium and close to the color band; is the electric field acceleration device disposed just above the print medium corresponding to the sublimation print head? Below. The gas ionization device is used for generating an electric field, the electric field discharges in air, sublimed thermal sublimation dye gas molecules are ionized into charged particles after heating, the charged particles collide with other dye molecules under the acceleration action of the electric field, so that more dye molecules are ionized, and finally, a large amount of plasmas are generated in a region close to the color band. A large number of charged particles are subjected to directional accelerated motion under the action of the electric field accelerating device to form ion wind, and other dye molecules which are not ionized are brought to the surface of a printing medium together, so that the non-contact jet printing of the thermal sublimation color band is realized.

Specifically, the thermal sublimation printing head and the electric field accelerating device are arranged oppositely.

Based on the technical scheme, the ion wind in a stable direction can be formed.

Specifically, the electric field accelerating device is a collector electrode.

Specifically, the ionization device comprises an ionization electrode and an ionization power supply, wherein the positive electrode of the ionization electrode is electrically connected with the positive electrode of the ionization power supply, the negative electrode of the ionization electrode is grounded, and the negative electrode of the ionization power supply is grounded;

the ionization electrode is fixed on one side, close to the thermal sublimation printing head, between the thermal sublimation color band and the printing medium, and the ionization negative electrode is arranged below the printing medium.

The ionization electrode is electrically connected with the negative electrode of the ionization electrode through a first current transformer, and/or the ionization electrode is electrically connected with the positive electrode of the ionization electrode through a second current transformer.

Based on the technical scheme, the high-voltage probe can be used for measuring the voltage of the ionization electrode; a first current transformer may be used to measure the current of the ionizing electrode; a second current transformer may be used to measure the current at the collector. Here, the measurement of the voltage of the ionizing electrode, the measurement of the current of the ionizing electrode, and the measurement of the current of the collecting electrode may be performed separately and may be performed simultaneously. Simultaneously to improve the measurement efficiency.

Specifically, the thermal sublimation printing head is fixedly arranged; the collector electrode is fixedly arranged.

Adopt the utility model provides a dye injection apparatus prints based on thermal sublimation of electric field acceleration, the method can specifically be: the printing medium is fed into the device, the ionization power supply is started, and the ionization voltage can be 1-4kv or other common ionization voltages for printing.

The utility model discloses utilize gas ionization device, at first with the dyestuff ionization after the sublimation, then utilize electric field accelerating device to give ionization back dyestuff particle orientation with higher speed, make the dyestuff spray with higher speed to the printing medium surface to realize the non-contact of thermal sublimation typewriter ribbon and print, make the thermal sublimation print and break away from the restriction of printing medium surface contact, avoided a series of problems such as nozzle blocking and ink waste that the inkjet printed simultaneously.

Drawings

Fig. 1 is the utility model provides a dye injection apparatus is printed in thermal sublimation based on electric field is with higher speed's structural schematic.

In fig. 1, the structure represented by each reference numeral is listed as follows:

1. the device comprises a thermal sublimation printing head, 2, a thermal sublimation color band, 3, a printing medium, 4, an ionization power supply, 5, an oscilloscope, 6, an ionization positive electrode, 7, a high-voltage probe, 8, a first current transformer, 9 and a collector.

Detailed Description

The following description is made for the purpose of illustrating the principles and features of the present invention, and is not intended to limit the scope of the invention.

It will be understood that when an element or component is referred to as being "connected," "positioned" or "coupled" to another element or component, it can be directly on the other element or component or intervening elements or components may also be present. The terms "left", "right", "upper", "lower" and the like as used herein are for illustrative purposes only.

In one embodiment, as shown in fig. 1, the dye injection device for sublimation printing based on electric field acceleration includes a sublimation printer body having a sublimation printing head 1 disposed above a sublimation ribbon 2, and further includes: an electric field acceleration device disposed below the printing medium 3; and an ionization device for forming a discharge ionization space between the thermal sublimation ribbon 2 and the printing medium 3. Based on the technical scheme, the gas ionization device is arranged between the thermal sublimation color band 2 and the printing medium 3 and close to the color band; the electric field accelerating device is arranged right below the printing medium 3 corresponding to the thermal sublimation printing head. The gas ionization device is used for generating an electric field, the electric field discharges in air, sublimed thermal sublimation dye gas molecules are ionized into charged particles after heating, the charged particles collide with other dye molecules under the acceleration action of the electric field, so that more dye molecules are ionized, and finally, a large amount of plasmas are generated in a region close to the color band. A large number of charged particles are subjected to directional accelerated motion under the action of the electric field accelerating device to form ion wind, and other dye molecules which are not ionized are brought to the surface of the printing medium 3 together, so that the non-contact jet printing of the thermal sublimation color band 2 is realized.

In one embodiment, the sublimation print head 1 and the electric field acceleration device are disposed opposite to each other. Based on the technical scheme, the ion wind with a stable direction can be formed. Compared with the technical scheme of asymmetric arrangement, the formed ion wind channel has the shortest path, so that the possibility of interference of external factors can be reduced.

In one embodiment, the electric field accelerating means is a collector electrode 9. The ionization device comprises an ionization electrode 6 and an ionization power supply 4, wherein the positive electrode of the ionization electrode 6 is electrically connected with the positive electrode of the ionization power supply 4, the negative electrode of the ionization electrode 6 is grounded, and the negative electrode of the ionization power supply 4 is grounded. The ionization electrode 6 is fixed between the thermal sublimation color band 2 and the printing medium 3 at one side close to the thermal sublimation printing head 1, and the ionization negative electrode is arranged below the printing medium 3. Based on the technical scheme, the functions of the electric field accelerating device and the ionization device can be conveniently realized. The ionization device is arranged by adopting the conventional common device, and is simple in structure and convenient to realize.

In one embodiment, the device further comprises an oscilloscope 5, said oscilloscope 5 being electrically connected with a high voltage probe 7, which extends towards said ionizing electrode 6. Based on the technical scheme, the high-voltage probe is used for measuring the voltage of the ionization electrode and is arranged by adopting the conventional common device, and the device is simple in structure and convenient to realize.

In one embodiment, the apparatus further comprises an oscilloscope 5, said oscilloscope 5 being electrically connected between the positive electrode of said ionizing electrode 6 and the positive electrode of said ionizing power supply 4 through a first current transformer 8. The oscilloscope 5 is electrically connected between the collector electrode 9 and the ground thereof through a second current transformer 10. Based on this technical scheme, first current transformer can be used to measure the electric current of ionization electrode, and the second current transformer can be used to measure the electric current of collecting electrode. And the device is arranged by adopting the conventional device, has a simple structure and is convenient to realize.

In one embodiment, the device further comprises an oscilloscope 5, wherein the oscilloscope 5 is electrically connected with a high-voltage probe 7, and the oscilloscope 5 is electrically connected between the positive electrode of the ionization electrode 6 and the positive electrode of the ionization power supply 4 through a first current transformer 8. Based on the technical scheme, the measurement of the voltage of the ionization electrode, the measurement of the current of the ionization electrode and the measurement of the current of the collector electrode can be carried out simultaneously, so that the measurement efficiency is improved. And the device is arranged by adopting the conventional device, has a simple structure and is convenient to realize.

With the utility model provides a thermal sublimation prints dyestuff injection apparatus and prints based on electric field is accelerated, sends into the device with print medium, opens the ionization power, and ionization voltage adopts 2kv, prints.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way; the utility model can be smoothly implemented by the ordinary technicians in the industry according to the drawings and the above description; however, those skilled in the art should understand that changes, modifications and variations made by the above-described technology can be made without departing from the scope of the present invention, and all such changes, modifications and variations are equivalent embodiments of the present invention; meanwhile, any changes, modifications, evolutions, etc. of the above embodiments, which are equivalent to the actual techniques of the present invention, still belong to the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a dye injection apparatus is printed in thermal sublimation based on electric field is accelerated, its includes thermal sublimation printer body, thermal sublimation printer body has thermal sublimation who sets up in thermal sublimation typewriter ribbon (2) top and beats printer head (1), its characterized in that still includes:

an electric field acceleration device disposed below the printing medium (3);

and an ionization device for forming a discharge ionization space between the thermal sublimation ribbon (2) and the printing medium (3).

2. The dye-jet apparatus for sublimation printing based on electric field acceleration according to claim 1, wherein: the thermal sublimation printing head (1) and the electric field accelerating device are oppositely arranged.

3. The dye-jet apparatus for sublimation printing based on electric field acceleration according to claim 1, wherein:

the ionization device comprises an ionization electrode (6) and an ionization power supply (4), wherein the positive electrode of the ionization electrode (6) is electrically connected with the positive electrode of the ionization power supply (4), the negative electrode of the ionization electrode (6) is grounded, and the negative electrode of the ionization power supply (4) is grounded;

the ionization electrode (6) is fixed on one side, close to the thermal sublimation printing head (1), between the thermal sublimation color band (2) and the printing medium (3);

the electric field accelerating device is a collector electrode (9), and the collector electrode (9) is grounded.

4. The dye-jet apparatus for sublimation printing based on electric field acceleration according to claim 3, wherein: the ionization electrode ionization device is characterized by further comprising an oscilloscope (5), wherein the oscilloscope (5) is electrically connected with a high-voltage probe (7) and extends to the ionization electrode (6), and/or the oscilloscope (5) is electrically connected between the positive electrode of the ionization electrode (6) and the positive electrode of the ionization power supply (4) through a first current transformer (8), and/or the oscilloscope (5) is electrically connected between the collector electrode (9) and the grounding electrode thereof through a second current transformer (10).

5. The dye-jetting device for sublimation printing based on electric field acceleration according to any one of claims 1 to 4, wherein: the thermal sublimation printing head (1) is fixedly arranged; the collector electrode (9) is fixedly arranged.