CN209953108U

CN209953108U - Thermal transfer ribbon coating device

Info

Publication number: CN209953108U
Application number: CN201920477894.1U
Authority: CN
Inventors: 张涛
Original assignee: Hebei Violet Digital Technology Co Ltd
Current assignee: Hebei Violet Digital Technology Co Ltd
Priority date: 2019-04-10
Filing date: 2019-04-10
Publication date: 2020-01-17
Anticipated expiration: 2029-04-10

Abstract

The utility model discloses a heat-transfer seal carbon ribbon coating unit, including being used for the first deflector roll and the second deflector roll that convey the carbon ribbon, setting up the spraying mechanism at carbon ribbon both sides face, and the nozzle of two spraying mechanisms sets up relatively, and two relative nozzles are gum shower nozzle and printing ink shower nozzle respectively. The spraying mechanism adopts a piezoelectric spraying mechanism or an electromagnetic valve body spraying mechanism. An air suspension drying box is arranged between the first guide roller and the second guide roller. The drying cabinet is including the passageway that supplies the carbon ribbon to pass, and the passageway both sides are provided with a plurality of hot gas outlet side by side and a plurality of gas side by side and return row mouth relatively, and homonymy hot gas outlet and gas return row mouth interval set up, and opposite side hot gas outlet one-to-one sets up. And gas balance baffles are connected between the hot gas outlets on the same side. The utility model discloses a two-sided spraying and gas suspension drying method can realize improving carbon-ribbon production efficiency and coating homogeneity to carbon-ribbon non-contact coating and timely stable drying, can also improve operational environment.

Description

Thermal transfer ribbon coating device

Technical Field

The utility model relates to a heat-transfer seal carbon ribbon makes the field, especially relates to a heat-transfer seal carbon ribbon coating unit.

Background

The thermal transfer ribbon is mainly used for printing industrial automatic identification bar codes, and along with the improvement of the identification rate requirement of the bar codes, the quality stability of the thermal transfer ribbon is also required to be stricter, so that the stability of the coating thickness of the thermal transfer ribbon needs to be controlled more accurately.

At present, the thermal transfer ribbon coating mode mostly adopts a roll coating mode, such as wire roll coating and multi-roll transfer coating. However, both wire roll coating and multi-roll transfer coating have the following defects: 1. in the coating process of chemicals, because the spreading area of the roller is large, organic solvents in the coating liquid can overflow into the air, and adverse effects are caused to operators and working environment; 2. the solid content of solute in the coating liquid fluctuates due to the volatilization factor of the organic solvent, and the influence is generated on the thickness of the coating layer of the precision coating, so that the factor of unstable product quality is increased; 3. because the roller coating is adopted, the carbon belt material needs to repeatedly contact the roller to complete the coating process, and the possibility of surface damage of the carbon belt material is increased; 4. the equipment structure of roller coating is complicated, if need dry earlier after accomplishing once the coating, carry out next layer coating again after the drying is accomplished, then dry again, need a plurality of coating device and a plurality of drying cabinet, take up an area of the space big, the structure is complicated, and equipment input is big, difficult maintenance.

Therefore, it is obvious that the above conventional thermal transfer ribbon coating apparatus still has inconveniences and defects in structure, method and use, and further improvement is needed. How to establish a new thermal transfer ribbon coating unit, make its simple and convenient spraying in the time of realization ribbon both sides, in time dry, still greatly reduced the pollution to operational environment, become the urgent need for the modified target of industry at present.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a thermal transfer ribbon coating unit, spraying in the time of the realization carbon ribbon both sides that make it simple and convenient, in time dry, still greatly reduced to operational environment's pollution to overcome current thermal transfer ribbon coating unit's not enough.

In order to solve the technical problem, the utility model provides a heat-transfer seal carbon ribbon coating unit, including being used for the first deflector roll and the second deflector roll that convey the carbon ribbon, setting up the spraying mechanism at carbon ribbon both sides face, and two the nozzle of spraying mechanism sets up relatively, and the nozzle of two relative settings is respectively for the gum shower nozzle that is used for spraying back coating and the ink jet head that is used for spraying printing ink layer.

As an improvement of the utility model, the spraying mechanism adopts a piezoelectric spraying mechanism or an electromagnetic valve body spraying mechanism.

Further improve, still be provided with the drying cabinet between first deflector roll and the second deflector roll, the drying cabinet sets up the spraying rear of spraying mechanism.

Further improved, the drying box adopts a gas suspension drying box.

The improvement is further improved, the gas suspension drying cabinet is including supplying the passageway that the carbon ribbon after the spraying passed, the passageway both sides are provided with a plurality of hot gas outlet side by side relatively to a plurality of gas side by side and return the mouth of arranging, homonymy hot gas outlet and gas return and arrange the mouth interval and set up, and the opposite side hot gas outlet one-to-one sets up.

In a further improvement, a box body of the air suspension drying box is provided with an air inlet and an air outlet, the box body of the air suspension drying box comprises an air inlet main pipe connected with the air inlet and a plurality of air inlet branch pipes connected with the air inlet main pipe, and the plurality of air inlet branch pipes are respectively and correspondingly provided with the hot gas outlets;

the box of gas suspension drying cabinet in still include one with the exhaust manifold that the gas vent is connected and many with the exhaust branch pipe that the exhaust manifold is connected, many exhaust branch pipes go up respectively to correspond the setting gaseous back row mouth.

Further improved, an electric heating mechanism is arranged at the air inlet of the air suspension drying box.

Further improved, gas balance baffles are connected between the hot gas outlets on the same side.

After adopting such design, the utility model discloses following advantage has at least:

1. the utility model discloses an adopt two-sided spraying mode, can realize the coating in the time of carbon ribbon both sides coating, not only improve the production efficiency of this heat-transfer seal carbon ribbon, still through this non-contact coating mode, produced the defect to material surface damage in having avoided current roller coat mode.

2. The utility model discloses still through adopting piezoelectricity spraying mechanism or solenoid valve body spraying mechanism, do not have organic solvent's bad volatilization when both can making the coating, reduced the coating process to operating personnel and operational environment's harmful effects, energy-concerving and environment-protective, safe and reliable. And the coating thickness of the thermal transfer ribbon obtained by the coating device can be accurately controlled within the range of +/-100 nm, the uniformity of the coating of the thermal transfer ribbon can be effectively ensured, and the defects that the solid content of solute is unstable and the obtained coating thickness is not uniform along with the volatilization of organic solvent in the coating process of the existing roller are avoided. The utility model discloses the thermal transfer ribbon product that coating device obtained can improve the density and the definition of bar code in printing bar code practical application, and then improves the recognition rate that the bar code read.

3. The utility model discloses still through adopting gas suspension drying cabinet, can in time dry the carbon ribbon after the spraying to the gaseous pollutants who discharges when drying concentrates and collects and handle, can improve the workplace environment greatly, does benefit to that the staff's is healthy. And still through set up gaseous balanced baffle in carbon ribbon both sides, make it form more balanced stable gaseous region, can play more balanced suspension effect to the carbon ribbon, then the drying to carbon ribbon both sides spraying layer is favorable to whole steady, balanced gas flow direction.

4. The utility model discloses coating device equipment structure is simple, and occupation space is little, still effectual resources are saved, and the practicality is strong.

Drawings

The foregoing is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clear, the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.

Fig. 1 is a schematic structural view of a thermal transfer ribbon coating apparatus according to the present invention.

Detailed Description

Referring to fig. 1, the thermal transfer ribbon coating apparatus of the present embodiment includes a first guide roller 2 and a second guide roller 3 for conveying a ribbon 1, and spraying mechanisms 4 disposed on both sides of the ribbon 1, and nozzles of the two spraying mechanisms 4 are disposed opposite to each other. The nozzles of the two oppositely arranged spraying mechanisms 4 are respectively a back glue spray head 41 for spraying a back coating layer and an ink spray head 42 for spraying an ink layer. This two spraying mechanisms can adopt two-sided spraying mode promptly, realize the spraying to the back coating and the printing ink layer of carbon ribbon both sides simultaneously, improve the carbon ribbon spraying efficiency.

In this embodiment, the spraying mechanism 4 employs a piezoelectric spraying mechanism, and utilizes slight deformation of the piezoelectric crystal before and after applying voltage to spray the spraying material, thereby achieving a non-contact coating effect. Specifically, the piezoelectric spraying mechanism comprises a nozzle, an ink supply unit and a driving unit. The nozzle belongs to an actuating mechanism of the piezoelectric spraying mechanism and is directly arranged in alignment with the surface of the carbon ribbon; the ink supply unit is used for supplying and conveying spraying materials; the driving unit comprises a piezoelectric crystal and an electric pressure plate, and the piezoelectric crystal is subjected to high-speed and slight deformation by applying voltage to the piezoelectric crystal, so that the spraying material in the nozzle is extruded out, and the spraying of the spraying material is realized.

In this embodiment, a plurality of piezoelectric spraying mechanisms are arranged side by side on both sides of the carbon ribbon 1, so that high-speed coating can be performed and stable uniformity can be achieved.

Of course, the spraying mechanism 4 in the application can also adopt an electromagnetic valve body spraying mechanism to realize the simultaneous spraying of the back coating and the ink layer on the two sides of the carbon ribbon.

In this embodiment, a drying box 5 is further disposed between the first guide roller 2 and the second guide roller 3, and the drying box 5 is disposed behind the spraying mechanism 4.

Specifically, the drying oven 5 is an air suspension drying oven. This gas suspension drying cabinet is including the passageway 6 that the carbon ribbon after supplying this spraying passed, and this 6 both sides of passageway are provided with a plurality of hot gas outlet 7 side by side relatively to a plurality of side by side gas return row mouth 8, and this hot gas outlet 7 and the gaseous 8 intervals of returning row mouth of homonymy set up, and this hot gas outlet 7 one-to-one setting of opposite side, and this gas of opposite side returns row mouth 8 also one-to-one setting. When this carbon ribbon 1 passes through this gas suspension drying cabinet like this, this carbon ribbon 1 blows through the balance of both sides hot gas outlet, and the suspension that can be balanced reaches quick timely drying effect in the passageway 6 of this drying cabinet.

And, set up an air inlet and an exhaust port on this gas suspension drying cabinet's the box, include in this gas suspension drying cabinet's the box that one is connected with this air inlet intake manifold and many and this air intake manifold are connected admit air and divide pipe 9, correspond respectively on this many air intake branch pipe 9 and set up this hot gas outlet 7. Similarly, the box body of the air suspension drying box also comprises an exhaust main pipe connected with the exhaust port and a plurality of exhaust branch pipes connected with the exhaust main pipe, and the plurality of exhaust branch pipes are respectively and correspondingly provided with the air return outlet 8. An electric heating mechanism is arranged at an air inlet of the air suspension drying box and used for heating air entering the box body, and drying of the surface of the sprayed carbon ribbon is facilitated.

In a preferred embodiment, gas equalization baffles 10 are connected between the hot gas outlets 7 on the same side in the present embodiment. Thus, a more balanced and stable gas area is formed between the gas equalizing baffles 10 on both sides of the carbon ribbon 1, the gas area can have more balanced suspension effect on the carbon ribbon, and the gas in the gas area can enter the symmetrical gas back-discharge openings 8 from both sides of the gas equalizing baffles 10. This gas suspension drying cabinet can form steady, balanced gas flow direction on the whole, does benefit to the drying to 1 both sides spraying layer of carbon ribbon to can reach the concentrated recovery to volatile solvent gas, improve operational environment greatly.

The utility model discloses a non-contact, two-sided spraying mode to and combine together with gaseous suspension drying mode, can improve the production efficiency and the reliable stability of heat-transfer seal carbon ribbon greatly, avoided producing the defect to material surface damage in the current roller coat mode.

The utility model discloses still through adopting piezoelectricity spraying mechanism or solenoid valve body spraying mechanism, do not have organic solvent's bad volatilization when both can making the coating, and the accurate control of the coating thickness that enables the heat-transfer seal carbon ribbon that obtains is at 100nm within range, can effectively guarantee the homogeneity of heat-transfer seal carbon ribbon coating, has avoided current roller coating process along with volatilizing of organic solvent, leads to solute solid content unstable, the inhomogeneous defect of coating thickness that obtains. The thermal transfer ribbon product that this application coating unit obtained can improve the density and the definition of bar code in printing bar code practical application, and then improves the identification rate that the bar code read.

The utility model discloses still through set up gaseous balanced baffle in gaseous suspension drying cabinet carbon ribbon both sides, make it form more balanced stable gaseous region, can play more balanced suspension effect to the carbon ribbon, then on the whole steady, balanced gaseous flow direction is favorable to the drying to carbon ribbon both sides spraying layer.

The utility model discloses hot transfer carbon ribbon coating unit equipment simple structure, occupation space is little, and the carbon ribbon that obtains is of high quality, can also effectual resources are saved, energy-concerving and environment-protective, and the practicality is strong.

The above description is only for the preferred embodiment of the present invention, and not intended to limit the present invention in any way, and those skilled in the art can make various modifications, equivalent changes and modifications using the above-described technical content, all of which fall within the scope of the present invention.

Claims

1. The utility model provides a thermal transfer ribbon coating unit, its characterized in that, is including being used for first deflector roll and the second deflector roll that conveys the carbon ribbon, setting up the spraying mechanism at carbon ribbon both sides face, and two the nozzle of spraying mechanism sets up relatively, and the nozzle of two relative settings is respectively for the gum shower nozzle that is used for spraying back coating and the ink jet who is used for spraying the printing ink layer.

2. The thermal transfer ribbon coating device according to claim 1, wherein the spraying mechanism is a piezoelectric spraying mechanism or an electromagnetic valve body spraying mechanism.

3. The thermal transfer ribbon coating apparatus according to claim 1 or 2, wherein a drying oven is further provided between the first guide roller and the second guide roller, the drying oven being provided behind the spraying of the spraying mechanism.

4. The thermal transfer ribbon coating apparatus according to claim 3, wherein the drying oven employs an air-suspension drying oven.

5. The coating device for the thermal transfer ribbon as claimed in claim 4, wherein the air suspension drying box comprises a channel for the sprayed ribbon to pass through, a plurality of side-by-side hot air outlets and a plurality of side-by-side air return outlets are oppositely arranged on two sides of the channel, the hot air outlets and the air return outlets on the same side are arranged at intervals, and the hot air outlets on the opposite sides are arranged in a one-to-one correspondence manner.

6. The coating device for the thermal transfer ribbon as claimed in claim 5, wherein the box body of the air suspension drying box is provided with an air inlet and an air outlet, the box body of the air suspension drying box comprises an air inlet main pipe connected with the air inlet and a plurality of air inlet branch pipes connected with the air inlet main pipe, and the plurality of air inlet branch pipes are respectively provided with the hot air outlets correspondingly;

7. The coating device for the thermal transfer ribbon as claimed in claim 6, wherein an electric heating mechanism is provided at an air inlet of the air suspension drying box.

8. The thermal transfer ribbon coating apparatus according to claim 5, wherein a gas equalizing baffle is connected between the hot gas outlets on the same side.