Label printing equipment based on UV coating protection

Abstract

The invention provides a label printing device and method based on UV coating protection. The device comprises a width-adjustable roll paper groove mechanism (50-110 mm) capable of being matched with conventional printing roll paper, and a thermal transfer ribbon printing module, a UV coating module, a UV primary curing module, a UV secondary curing module, an automatic paper tape cutting module and other core modules. The self-adaptive paper slot is characterized in that: 1, the self-adaptive paper slot is designed: a bidirectional synchronous guide rail adjusting mechanism is adopted, so that stepless adjustment in a range of 50mm to 110mm is realized, and the self-adaptive paper slot is adaptive to the requirements of labels with different sizes; 2, a UV protection layer coating process: coating UV glue immediately after printing is completed, and forming a high-temperature-resistant and chemical-corrosion-resistant (alcohol and plate washing water) protection layer on the surface of the label after primary rapid curing and secondary curing of a high-power UV lamp; the automatic cutting function is achieved, automatic and accurate cutting is achieved according to the preset label length, the production efficiency is improved, and the utilization rate of printing roll paper is increased.

Description

Technical Field

[0001] This invention relates to the field of printing equipment technology, and in particular to the printing of weather-resistant labels for PCB boards or other corrosion-resistant and high-temperature resistant labels. It provides a UV-coated protective label printing device that can solve the problems of traditional PCB labels being not resistant to high temperatures and being easily corroded by chemical solvents. Background Technology

[0002] Most existing PCB labels are printed using thermal printing or ordinary ink and toner printing, which has the following disadvantages: 1. Poor high temperature resistance: It is prone to carbonization and peeling during reflow soldering; 2. Weak resistance to chemical corrosion: After contact with alcohol or board cleaning solution, the text may become blurred, delaminated, or even peel off; 3. Insufficient adaptability: The width of the label paper is fixed and cannot match the printing needs of PCB labels of different sizes. Summary of the Invention

[0003] Core innovations: 1. Adjustable paper tray mechanism: The dynamic adjustment range is 50mm-110mm, which is compatible with mainstream PCB label sizes and is not limited to PCB labels. It can also be used in other similar application scenarios (requiring high temperature resistance and chemical corrosion resistance), such as label printing for chemical test reagents and label printing for electroplating electrolytes. 2. UV coating and primary and secondary curing system: printhead → UV adhesive coating → primary UV curing → secondary UV curing → automatic cutting. The two UV curing processes greatly improve the curing degree of the UV adhesive and extend its service life. 3. Label paper structure: The paper tape and ink are wrapped by a UV adhesive layer to form a protective layer that is resistant to high temperature and chemical corrosion. 4. Wear-resistant label surface: Ordinary labels do not have a sufficient protective layer. During long-term use or maintenance, the label surface may be scratched or the text information may be lost. A protective layer is formed by UV adhesive, and the UV adhesive has a soft elasticity after curing, which greatly improves the wear resistance of the label. 5. UV adhesive curing creates a "magnifying glass" effect: After UV adhesive is applied, it flows thinner at the edges and slightly thicker in the middle. When cured, it creates a "magnifying glass" effect, which helps to clearly identify the printed text. Detailed Implementation

[0004] Overall structure of the equipment: like Figure 1 As shown, the printing device of the present invention mainly comprises the following components: (1) On the outer shell (101) (2) Under the outer shell (103) (3) Toilet paper cover (102) (4) Collection Box (104) like Figure 2 As shown, its roll cover (102) can open and close at 90 degrees. When opened, it is used to replace the paper roll (106), and the collection box (104) can be removed. The printed labels are cut by the automatic cutting module and fall into the collection box (104), which facilitates the collection of printed labels. Figure 3 As shown, the internal structure of the printing device of the present invention mainly includes the following components: (1) Stent (107) (2) Paper trough (109) (3) Printing module (105) (4) Paper rolls (106) (5) UV coating module (104) (6) Level 1 Solidification Module (111) (7) Secondary curing module (112) (8) Paper feed roller (110) (9) Baffle (108) Attached Figure Description

[0005] Figure 1 This is a schematic diagram of the outer casing of the present invention;

[0006] Figure 2 This is a schematic diagram of the structural layout of the present invention;

[0007] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0008] Typical application examples: Electronics Manufacturing Industry - High Temperature Resistant Labels for PCB Boards Application scenario: In SMT (Surface Mount Technology) production lines, PCBs need to undergo reflow soldering. Traditional paper or thermal labels are prone to carbonization, detachment, or damage and disappearance of text information. Subsequent cleaning processes (such as alcohol wiping and board cleaning solution) may cause the label text to become blurred or delaminated. Chemical Industry - Corrosion-Resistant Chemical Labels Application scenarios: Chemical raw material drums, reagent bottles, and hazardous chemical containers need to be labeled with long-term corrosion-resistant labels that remain readable after contact with strong acids, strong alkalis, and organic solvents.

[0009] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

Claims

1. A label printing apparatus based on UV-coating protection; characterized by, The application relates to a label printing and cutting machine. (1) a paper slot (109) with adjustable width, the width adjustment range being 50mm-110mm; (2) a printing module (105) for printing graphic information on a paper roll (106); (3) a UV coating module (104) for uniformly coating UV glue on the surface of the printed label paper; (4) a primary curing module (111) for rapidly curing the coated UV glue by using a UV lamp; (5) a secondary curing module (112) for twice rapidly curing the coated UV glue by using a UV lamp and curing the UV glue not irradiated during the primary curing; (6) an automatic cutting module for accurately cutting according to a preset length.

2. The label printing apparatus according to claim 1, characterized by The paper slot (109) with adjustable width comprises two guide rails, a gear synchronous adjustment device and a spring tensioning structure.

3. The label printing apparatus according to claim 1, characterized by The UV coating module (104) comprises a slit coating head, which ensures that the UV glue uniformly covers the surface of the label paper.

4. The label printing apparatus according to claim 1, characterized by The primary curing module (111) comprises a high-power UV lamp with a wavelength of 365nm-405nm, a light reflection bowl structure with heat dissipation and light reflection functions, and an inner wall plated reflection layer for reflecting and collecting the light generated by the UV lamp on the surface of the label paper and simultaneously serving as a heat dissipation function of the UV lamp.

5. The label printing apparatus according to claim 1, characterized by The paper feeding wheel (110) comprises two rubber-coated roller wheels which are tightly attached to each other and oppositely move to feed the label paper, and gears are installed at the two ends of the roller wheels to synchronously rotate.

6. The label printing apparatus according to claim 1, characterized by The automatic cutting module comprises a small stepping motor driving a cam to push a cutting blade for cutting the label paper.

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