CN113400798A

CN113400798A - UV printing process

Info

Publication number: CN113400798A
Application number: CN202110594689.5A
Authority: CN
Inventors: 应挺; 陈慧锋; 胡丽媛
Original assignee: Zhejiang Debang Print Co ltd
Current assignee: Zhejiang Debang Print Co ltd
Priority date: 2021-05-28
Filing date: 2021-05-28
Publication date: 2021-09-17
Anticipated expiration: 2041-05-28
Also published as: CN113400798B

Abstract

The application relates to a UV printing process, which comprises the following steps of winding two ends of a curtain to be printed on winding components at two ends of printing equipment, so that the curtain is positioned at the lower side of a printing component; step two, starting the printing component and the winding component to enable the printing component to be abutted against the upper end of the curtain, enabling the curtain to move along with the rotation of the winding component, and enabling the printing component to finish printing on the surface of the curtain; and step three, starting the drying and fixing component at the side end of the printing component, and fixing the UV printing pattern on the surface of the curtain by the drying and fixing component. This application has and accelerates the stoving fixation effect, does not influence characteristics such as multiple printing.

Description

UV printing process

Technical Field

The application relates to the technical field of special printing, in particular to a UV printing process.

Background

At present, a multi-unit glazing unit becomes the most basic component of a single-sheet offset press, glazing with special effects can be easily finished through the multi-unit glazing unit, and cosmetic packages are often made of special materials. Metal card paper, composite card paper, aluminum-sprayed paper, and card paper subjected to glazing treatment are increasingly widely used in the field of cosmetic packaging, and show a continuously and stably increasing momentum. New transparent composite materials have also begun to be used on plastic box packaging. Since these substrates cannot be printed in the usual way and must be subjected to the desired effect by means of UV technology, not only is more and more UV glossing applied, but the use of UV printing inks is also more widespread.

The prior patent publication number: CN103770484A discloses a UV printing process, which comprises 1, preparing a silk-screen printing plate for printing down; 2. printing glue; 3. printing the gold oil for the first time; 4. printing a white background; 5. printing special colors; 6. printing secondary gold oil; 7. covering and transferring a film; 8. cutting or punching and forming; 9. packaging; in the process step 2, the mesh number of the screen printing plate for printing the glue is 150 meshes; step 3, printing the gold oil once to form a glue-sharing printing plate with an interval IH between the two printing plates; in the process step 4, the mesh number of the screen printing plate for printing the white background is 300 meshes; in the process step 5, the printing spot color is from light to dark, and the mesh number of the screen printing plate is 300 meshes; in the process step 6, the mesh number of the screen printing plate for printing the secondary gold oil is 300 meshes, and the thickness of the printing image-text layer is about 10 um.

The above related technical solutions have the following drawbacks: the printing process can be used during single-layer printing, when multi-layer three-dimensional printing is required, UV printing ink cannot be firmly attached within a short time, and at the moment, the multi-layer printing ink can interfere with each other, so that the printing effect is poor.

Disclosure of Invention

In order to ensure the printing effect in the multi-layer printing process, the application provides a UV printing process.

The above object of the present application is achieved by the following technical solutions:

a UV printing process comprises the steps of firstly, winding two ends of a curtain to be printed on winding components at two ends of a printing device, so that the curtain is positioned at the lower side of a printing component; step two, starting the printing component and the winding component to enable the printing component to be abutted against the upper end of the curtain, enabling the curtain to move along with the rotation of the winding component, and enabling the printing component to finish printing on the surface of the curtain; and step three, starting the drying and fixing component at the side end of the printing component, and fixing the UV printing pattern on the surface of the curtain by the drying and fixing component.

Through adopting above-mentioned technical scheme, the printing process falls into step one to step three, step one prepares, step two prints, step three accelerates the drying and the adhesion of printing ink, thereby when carrying out multilayer printing through this printing technology, can all dry the fixation after each layer of printing, thereby when making the curtain carry out next grade printing, the printing of last level has attached completely, can not exert an influence to new printing, thereby guarantee the production quality of multiple printing and accelerate printing speed.

Preferably, the drying and fixing component comprises a support frame fixed at the side end of the printing component, a drying air head fixed at the lower end of the support frame close to one side of the printing component, and an ultraviolet lamp head fixed at the lower end of the support frame far away from one side of the printing component.

Through adopting above-mentioned technical scheme, when the stoving fixation subassembly carries out the during operation, along with the removal of curtain, the printing subassembly is with the surface of pattern printing paper curtain, and the wind head of drying directly bloies to the surface of curtain this moment to accomplish partial drying, ultraviolet lamp head carries out searchlighting to the printing pattern afterwards, thereby accomplishes ultraviolet curing, makes along with drying the fixation when the curtain removes the printing, and is more convenient, faster.

Preferably, the winding assembly, the printing assembly and the drying and fixing assembly are fixed on the frame together, extension frames are vertically arranged at two side ends of the frame, the printing assembly comprises a printing support, printing support plates are arranged at two side ends of the printing support, sliding grooves for the printing support plates to be inserted and vertically slide are vertically formed in the extension frames, and pressure springs abutting against the lower ends of the printing support plates are embedded in the sliding grooves.

Through adopting above-mentioned technical scheme, when the printing, the lower extreme of printing unit needs the butt at the up end of curtain, and need make the curtain pass between frame and the printing unit in proper order in the preparation process, when the thickness of curtain is different, then need lift up the printing unit is whole, then pass the curtain again, it is very inconvenient, support the lower extreme at the printing extension board through the pressure spring in this scheme, make when lifting up the printing unit through the printing extension board, the pressure spring can provide a directional power, make to lift up more easily, it is more convenient, carry on spacingly to the printing extension board through extending the frame simultaneously, make lifting up and the reset position of printing unit can not change, and then guarantee the printing precision.

Preferably, the supporting seats are arranged at the two side ends of the rack and comprise sliding seats horizontally arranged at the two sides of the rack and supporting plates located at the upper ends of the sliding seats and supported at the lower ends of the printing support plates.

Through adopting above-mentioned technical scheme, when passing the curtain between printing unit and the frame, need keep the printing unit to be in the state that lifts up always, need other staff to operate this moment, it is more troublesome, slide seat and backup pad through setting up in this scheme, make to remove the seat of sliding and make the backup pad remove to the lower extreme of printing extension board, thereby support the printing extension board, thereby can pass the curtain again after accomplishing the support, and then make alone alright operation, it is more convenient.

Preferably, the two side ends of the support frame vertically extend downwards to form shielding plates, and the shielding plates are located on the outer sides of the two side ends of the rack.

Through adopting above-mentioned technical scheme, the backup pad through support frame both sides end shelters from the both sides end of drying the wind head to make the during operation of drying the wind head, its hot-blast can directly not flow from both sides end that blows off loses, and then guarantees the temperature of support frame lower extreme, thereby reduce extravagantly, improve the stoving effect.

Preferably, the support frame is provided with a first wind shield at the side end of the drying wind head close to the printing assembly in an inclined manner, a second wind shield is arranged at the side end of the printing support far away from the first wind shield in an inclined manner, and the first wind shield and the second wind shield are opposite in inclined direction.

Through adopting above-mentioned technical scheme, when the stoving wind head blows, the warm braw directly blows to the surface of curtain, and after sheltering from of shielding plate, the warm braw will blow to both sides along the up end of curtain, when the warm braw blows the printing module lower extreme this moment, can cause the drying of printing ink, and then influence the printing effect, through setting up first deep bead and second deep bead in this scheme, make the warm braw blow down directly along first deep bead and second deep bead after the heart, reduce the probability of blowing along the curtain surface, thereby reduce the influence to the printing effect.

Preferably, the printing assembly is still including being located the printing ink box of printing assembly upper end and being located the printing ink box lower extreme is outstanding in the printing roller of printing support lower extreme, the printing ink box includes many ink transfer rollers that roll the butt in proper order and supply one the ink storage box that ink transfer roller steeps is kept away from ink storage box one end the ink transfer roller rotate support tightly in the printing roller side.

Through adopting above-mentioned technical scheme, immerse the distributor roller rotation in the ink horn to deliver gradually and go out with the printing ink in the ink horn, along with the rotation gradually of distributor roller, printing ink is by direct transfer to on the printing roller, and along with the rotation printing of printing roller on the curtain surface, the ink horn in this scheme is not the inversion nor the formula of dripping, thereby can not have the risk of leaking, and is safer.

Preferably, an installation slot is formed in the side end of the printing ink box, the ink storage box is inserted into the installation slot, a positioning spring is arranged on the bottom wall of the installation slot of the printing ink box, and a positioning block abutting against the lower end of the ink storage box is arranged at the upper end of the positioning spring.

Through adopting above-mentioned technical scheme, when the installation ink storage box, press the locating piece to one side of positioning spring, thereby make positioning spring compressed, then in directly pegging graft into the installation slot with the ink storage box, after the ink storage box inserts completely, loosen the locating piece, make the locating piece reset under positioning spring's effect, thereby move the ink storage box to the upside of installation slot, make the side of a distributor roller can directly peg graft in the ink storage box, and then accomplish the installation of ink storage box, this scheme makes the installation of ink storage box more convenient.

Preferably, the winding assembly comprises winding rollers rotatably connected to two ends of the rack, wedge-shaped slots penetrating through two ends of each winding roller are formed in the side ends of each winding roller, and wedge-shaped insertion blocks are inserted into the wedge-shaped slots of the winding rollers.

Through adopting above-mentioned technical scheme, when the curtain convolutes on the rolling subassembly, the wedge inserted block is taken out from the wedge slot, then directly pegs graft the end of curtain in the wedge slot, at last pegs graft the wedge inserted block directly in the wedge slot again to it is fixed to slow down the curtain, and this scheme makes the installation of curtain and pull down more convenient, is convenient for carry out continuous production.

Preferably, a one-way vent pipe is arranged at the back of the ultraviolet lamp holder and communicated with a pipeline at the back of the drying wind head.

Through adopting above-mentioned technical scheme, when the ultraviolet lamp holder during operation, the ultraviolet lamp holder will produce a large amount of heats, if not carry out recycle will cause the waste of the energy, this scheme sets up one-way ventilation pipe through the back at the ultraviolet lamp holder for the stoving wind head during operation, the heat that the ultraviolet lamp holder produced directly blows off from the stoving wind head along the pipeline at one-way ventilation pipe entering stoving wind head back again, thereby accomplishes thermal recycle, reduces extravagantly.

To sum up, the beneficial technical effect of this application does:

1. the preparation is carried out in the first step, the printing is carried out in the second step, and the drying and adhesion of printing ink are accelerated in the third step, so that when multilayer printing is carried out through the printing process, drying and fixation can be carried out after each layer of printing, and therefore when next-stage printing is carried out on the curtain, the previous-stage printing is completely adhered, no influence is caused on new printing, the production quality of the multiple printing is ensured, and the printing speed is accelerated;

2. when the ink storage box is installed, the positioning block is pressed towards one side of the positioning spring, so that the positioning spring is compressed, then the ink storage box is directly inserted into the installation slot, after the ink storage box is completely inserted, the positioning block is loosened, the positioning block is reset under the action of the positioning spring, so that the ink storage box moves towards the upper side of the installation slot, the side end of one ink transfer roller can be directly inserted into the ink storage box, the installation of the ink storage box is further completed, the ink storage box is more convenient to install, and meanwhile, the ink storage box is in a positive position, so that the risk of leakage is reduced;

3. the back of the ultraviolet lamp holder is provided with the one-way ventilation pipe, so that when the drying wind head works, heat generated by the ultraviolet lamp holder directly enters a pipeline at the back of the drying wind head along the one-way ventilation pipe and is blown out from the drying wind head, heat recycling is achieved, and waste is reduced.

Drawings

FIG. 1 is a schematic view of a printing apparatus;

FIG. 2 is a partial exploded view of the printing apparatus;

FIG. 3 is an enlarged view of FIG. 2 at A;

FIG. 4 is a schematic view of the printing assembly and the drying and fixing assembly;

fig. 5 is an enlarged view of fig. 4 at B.

In the figure: 1. a frame; 2. a winding component; 3. a printing assembly; 4. drying the fixing component; 5. a wind-up roll; 6. a wedge-shaped slot; 7. a wedge-shaped insert block; 8. printing a support; 9. a print cartridge; 10. printing a support plate; 11. an extension frame; 12. a chute; 13. a pressure spring; 14. a slide rail; 15. a sliding seat; 16. a support plate; 17. an ink transfer roller; 18. a printing roller; 19. an ink storage box; 20. installing a slot; 21. a positioning spring; 22. positioning blocks; 23. a support frame; 24. drying the wind head; 25. an ultraviolet lamp holder; 26. a one-way vent pipe; 27. a shielding plate; 28. a first windshield; 29. and a second wind deflector.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

Referring to fig. 1, a UV printing process includes a first step of completing a preparation work on a printing apparatus; step two, printing; and step three, blanking.

The printing equipment comprises a frame 1 supported on the ground, and a rolling component 2, a printing component 3 and a drying and fixing component 4 which are positioned on the frame 1.

Referring to fig. 1 and 2, rolling subassembly 2 is total two sets of and is located the both ends of frame 1 respectively, rolling subassembly 2 includes rotates the wind-up roll 5 of connecting at frame 1 both ends through the pivot, the axis of rotation of wind-up roll 5 is the level form, and two wind-up rolls 5 are the parallel form, the wedge slot 6 that both ends are the form of lining up is seted up along self length direction to the side of wind-up roll 5, wind-up roll 5 has inserted wedge inserted block 7 in wedge slot 6, the curtain is direct to be pegged graft in wedge slot 6, make wedge inserted block 7 insert behind the wedge slot 6 with the curtain clamp tightly fixed.

Referring to fig. 2 and 3, the printing component 3 and the drying fixing component 4 are respectively provided with three groups, two groups of the printing component 3 and the drying fixing component 4 are arranged in a staggered manner, the printing component 3 comprises a printing support 8 supported at the upper end of the frame 1 and a printing ink box 9 welded at the upper end of the printing component 3, two side ends of the printing support 8 are welded with horizontal printing support plates 10, two side ends of the frame 1 are vertically welded with extension frames 11, the extension frames 11 are vertically provided with chutes 12 for the printing support plates 10 to insert and vertically slide, the extension frames 11 are embedded with compression springs 13 in the chutes 12, the upper ends of the compression springs 13 are abutted against the lower ends of the printing support plates 10, the whole printing component 3 can be driven to be lifted by lifting the printing support plates 10, two side ends of the frame 1 are welded at the lower side of the extension frames 11 with horizontal slide rails 14, the upper ends of the slide rails 14 are provided with sliding seats 15, the lower ends of the sliding seats 15 are provided with grooves for the slide rails 14 to slide and insert, the sliding seat 15 can slide horizontally on the sliding rail 14, a supporting plate 16 is integrally arranged at the upper end of the sliding seat 15, and the supporting plate 16 can abut against the lower end of the printing support plate 10 by sliding the sliding seat 15 horizontally.

Referring to fig. 4 and 5, the inside of the printing ink cartridge 9 horizontally rotates through a rotating shaft and is connected to a plurality of ink transfer rollers 17 and a printing roller 18 in the printing support 8, the printing ink cartridge further comprises an ink storage box 19 inserted at a side end, the side end of the printing ink cartridge 9 is provided with an installation slot 20 communicated to the inside, the bottom wall of the installation slot 20 of the printing ink cartridge 9 is welded with a plurality of groups of vertical positioning springs 21, the upper end of each positioning spring 21 is welded with a positioning block 22, the positioning block 22 is pressed to compress the positioning spring 21, the ink storage box 19 can be directly inserted into the installation slot 20 at the moment, the positioning spring 21 pushes the positioning block 22 to enable the ink storage box 19 to move upwards, the lower end of one ink transfer roller 17 is directly immersed into the ink storage box 19 at the moment, the plurality of ink transfer rollers 17 roll and abut one by one to one direction, one ink transfer roller 17 far away from the ink storage box 19 abuts against the side end of the printing roller 18, and the lower end of the printing roller 18 protrudes out of the lower end of the printing support 8, when the ink transfer roller 17 rotates, the ink in the ink tank 19 is directly applied to the side end of the printing roller 18, and printing is performed.

Referring to fig. 3 and 4, the drying fixing component 4 includes a support frame 23 welded at the side end of the printing support 8, a plurality of drying wind heads 24 and a plurality of ultraviolet lamp holders 25 welded at the lower end of the support frame 23, the drying wind heads 24 are located at one side close to the printing support 8, a plurality of one-way ventilation pipes 26 are welded at the upper end of the support frame 23, each one-way ventilation pipe 26 is aligned to one ultraviolet lamp holder 25 and communicated with the back of the ultraviolet lamp holder 25, heat generated when the ultraviolet lamp holders 25 emit light can directly enter the one-way ventilation pipe 26, the one-way ventilation pipe 26 is directly welded on a pipe at the back of the drying wind heads 24, when the drying wind heads 24 work, hot air in the one-way ventilation pipe 26 can be directly blown to the lower side of the support.

Referring to fig. 4 and 5, the vertical welding of both sides end of support frame 23 has shielding plate 27, shielding plate 27 is located the both sides of frame 1, support frame 23 has first deep bead 28 in the one end welding that is close to same group printing support 8, printing support 8 has second deep bead 29 in the one end welding of keeping away from same group support frame 23, first deep bead 28 and second deep bead 29 set up towards the middle part slope for the hot-blast that drying wind head 24 blew out can be along shielding plate 27, first deep bead 28 and second deep bead 29 straight curtain up end.

The implementation principle of the embodiment is as follows:

when the curtain is printed by the UV printing process, firstly, the printing support plate 10 is lifted, then the sliding seat 15 is horizontally moved, the support plate 16 is positioned at the lower end of the printing support plate 10 and is abutted against the lower end of the printing support plate 10, so that the printing component 3 is wholly lifted up, at the moment, a gap for the curtain to pass through is formed between the printing roller 18 and the upper end face of the machine frame 1, the other end of the curtain is fixed on the winding roller 5 after the curtain passes through manually, and the sliding seat 15 is moved to one side, so that the printing roller 18 in the printing component 3 is directly abutted against the surface of the curtain; step two, starting the printing component 3 and the drying and fixing component 4 while rotating the winding roller 5, and rotating the ink transfer roller 17 in the printing support 8 so as to directly transfer the ink in the ink storage box 19 to the printing roller 18, rotating the printing roller 18 which is abutted to the surface of the curtain so as to directly complete printing on the surface of the curtain, wherein at the moment, the drying air head 24 blows out warm air which is directly blown to the surface of the curtain along the first wind shield 28 and the second wind shield 29 so as to complete partial drying, and meanwhile, the ultraviolet lamp head 25 irradiates ultraviolet light so as to complete the fixing of the ink; and step three, after the curtain sequentially passes through the lower ends of the plurality of groups of printing components 3 and the drying and fixing components 4 and completes multiple printing, the curtain is completely wound on a winding roller 5, the printed curtain is detached from the winding roller 5, and the next printing is prepared.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A UV printing process characterized by: the method comprises the following steps that firstly, two ends of a curtain to be printed are wound on winding components (2) at two ends of printing equipment, so that the curtain is positioned at the lower side of a printing component (3); step two, starting the printing component (3) and the winding component (2) to enable the printing component (3) to abut against the upper end of the curtain, enabling the curtain to move along with the rotation of the winding component (2), and enabling the printing component (3) to finish printing on the surface of the curtain; and step three, starting the drying and fixing component (4) at the side end of the printing component (3), and fixing the UV printing pattern on the surface of the curtain by the drying and fixing component (4).

2. The UV printing process according to claim 1, characterized in that: the drying and fixing component (4) comprises a support frame (23) fixed at the side end of the printing component (3), a drying air head (24) fixed at the lower end of the support frame (23) close to one side of the printing component (3), and an ultraviolet lamp head (25) fixed at the lower end of the support frame (23) far away from one side of the printing component (3).

3. The UV printing process according to claim 1, characterized in that: the drying and fixing device is characterized in that the winding component (2), the printing component (3) and the drying and fixing component (4) are fixed on the frame (1) together, extending frames (11) are vertically arranged at two side ends of the frame (1), the printing component (3) comprises printing supports (8), printing support plates (10) are arranged at two side ends of each printing support (8), sliding grooves (12) which are used for allowing the printing support plates (10) to be inserted and vertically slide are vertically formed in the extending frames (11), and pressing springs (13) which are abutted to the lower ends of the printing support plates (10) are embedded in the sliding grooves (12).

4. The UV printing process according to claim 3, wherein: the supporting seat is arranged at two side ends of the rack (1), and comprises sliding seats (15) which are horizontally arranged at two sides of the rack (1) in a sliding mode and supporting plates (16) which are positioned at the upper ends of the sliding seats (15) and are supported at the lower ends of the printing support plates (10).

5. The UV printing process according to claim 4, wherein: two side ends of the support frame (23) vertically extend downwards to form shielding plates (27), and the shielding plates (27) are located on the outer sides of two side ends of the rack (1).

6. The UV printing process according to claim 5, wherein: the supporting frame (23) is in drying wind head (24) is close to one side end slope of printing subassembly (3) is provided with first deep bead (28), one side end slope that printing support (8) kept away from first deep bead (28) is provided with second deep bead (29), first deep bead (28) with second deep bead (29) slope opposite direction is the subtend.

7. The UV printing process according to claim 3, wherein: printing element (3) are still including being located printing ink box (9) and being located of printing element (3) upper end printing ink box (9) lower extreme and outstanding in printing roller (18) of printing support (8) lower extreme, printing ink box (9) include many pass roller (17) and the confession one that roll the butt in proper order pass roller (17) immerse ink storage box (19), keep away from ink storage box (19) one end pass roller (17) rotate support tightly in printing roller (18) side.

8. The UV printing process according to claim 7, characterized in that: an installation slot (20) is formed in the side end of the printing ink box (9), the ink storage box (19) is inserted into the installation slot (20), a positioning spring (21) is arranged on the bottom wall of the installation slot (20) of the printing ink box (9), and a positioning block (22) which is abutted to the lower end of the ink storage box (19) is arranged at the upper end of the positioning spring (21).

9. The UV printing process according to claim 3, wherein: winding subassembly (2) including rotate connect in wind-up roll (5) at frame (1) both ends, wind-up roll (5) side seted up link up in wedge slot (6) at wind-up roll (5) both ends, wind-up roll (5) are in it has wedge inserted block (7) to peg graft in wedge slot (6).

10. The UV printing process according to claim 2, characterized in that: the back of the ultraviolet lamp holder (25) is provided with a one-way ventilation pipe (26), and the one-way ventilation pipe (26) is communicated with a pipeline on the back of the drying wind head (24).