CN219312351U

CN219312351U - Photo-curing assembly and photo-curing ink-jet printer

Info

Publication number: CN219312351U
Application number: CN202223439151.6U
Authority: CN
Inventors: 朱家山
Original assignee: Shenzhen JRM Technology Co ltd
Current assignee: Shenzhen JRM Technology Co ltd
Priority date: 2022-12-21
Filing date: 2022-12-21
Publication date: 2023-07-07
Anticipated expiration: 2032-12-21

Abstract

The application discloses a photocuring subassembly and photocuring inkjet printer relates to photocuring technical field. The light curing assembly comprises a rotating mechanism, a spray head and a light curing module. The rotating mechanism is used for driving the printing object to rotate along the circumferential direction of the printing object. The spray head can reciprocate along the axis direction of the printing object and print ink or varnish on the printing object. The printing object is located between the spray head and the light curing module, the light curing module comprises a plurality of lamp beads arranged along the axis direction of the printing object, and the printing object can block light emitted by the lamp beads. The photo-curing assembly provided by the application is characterized in that the printing object is located between the spray head and the photo-curing module, so that the printing object can block light possibly irradiating the spray head in light emitted by a plurality of lamp beads, and the problem that the spray head is blocked due to light emitted by the lamp beads is solved.

Description

Photo-curing assembly and photo-curing ink-jet printer

Technical Field

The application relates to the technical field of photocuring, in particular to a photocuring assembly and a photocuring ink-jet printer.

Background

In the existing ultraviolet curing ink-jet printer, ink or gloss oil is generally printed on the surface of a printing object through a spray head which moves back and forth in the printing process, and the ink or gloss oil on the printing object is irradiated through an ultraviolet curing lamp arranged on the spray head, so that the ink or gloss oil is reacted and cured under the catalysis of ultraviolet light, and the effect of curing immediately after printing is realized. The ultraviolet curing lamp moves along with the spray head, so that the ink or gloss oil at the spray hole on the spray head is easy to generate curing reaction under the irradiation of ultraviolet light emitted by ultraviolet light or reflected by the surface of a printing object, thereby blocking the spray head and affecting the use of the ultraviolet curing ink-jet printer.

Disclosure of Invention

The application provides a photocuring assembly for solve the problem that the shower nozzle of ultraviolet curing inkjet printer among the prior art easily takes place to block up under the irradiation of ultraviolet light.

To solve the above problems, the present application provides: a light curing assembly for printing a pattern on a substrate, comprising:

the rotating mechanism is used for driving the printing object to rotate along the circumferential direction of the printing object;

the spray head is positioned on one side of the circumferential direction of the printing stock and can reciprocate along the axial direction of the printing stock and print ink or gloss oil on the printing stock;

the photo-curing module is located on the other side of the circumferential direction of the printing stock, the printing stock is located between the spray head and the photo-curing module, the photo-curing module comprises a plurality of lamp beads arranged along the axial direction of the printing stock, and the printing stock can block light emitted by the lamp beads.

In one possible implementation manner, the light curing assembly further comprises a control module and a moving mechanism for driving the spray head to reciprocate, wherein the control module is respectively electrically connected with the moving mechanism and the plurality of lamp beads, and can selectively control at least one lamp bead corresponding to the position of the spray head to be conducted according to the position of the spray head.

In one possible implementation manner, the light curing module further comprises a mounting box, the mounting box is provided with a containing cavity, a plurality of lamp beads are respectively arranged in the containing cavity, strip-shaped holes are formed in the mounting box along the arrangement direction of the lamp beads, and light emitted by the lamp beads can penetrate through the strip-shaped holes to irradiate on the printing object.

In one possible embodiment, the width of the strip-shaped holes is D, and 10 mm.ltoreq.D.ltoreq.20 mm is satisfied.

In one possible embodiment, the light curing module further includes a sliding shutter slidably connected to the mounting box, the sliding shutter being capable of sliding in a width direction of the bar-shaped hole and covering one side of the bar-shaped hole in the width direction thereof.

In one possible embodiment, the light bead includes a first wavelength light emitting diode and a second wavelength light emitting diode, the first wavelength light emitting diode and the second wavelength light emitting diode being alternately arranged.

In one possible embodiment, the light curing assembly further includes a light shield located at one or both sides of the circumferential direction of the print object to block light propagating to the shower head among light emitted from the lamp beads.

In one possible embodiment, a reflective layer is provided on a side of the mask facing the light curing module.

In one possible embodiment, the light curing assembly further comprises an adjustment mechanism coupled to the mask for adjusting the distance of the mask from the object to be printed.

The present application also provides: a photo-curable inkjet printer comprising a photo-curable assembly provided in any one of the embodiments described above.

The beneficial effects of this application are: the application provides a photocuring subassembly and photocuring ink jet printer, this photocuring subassembly is when using, can make rotary mechanism drive bear the print object rotate along the circumference of bearing the print object, can follow the shower nozzle of bearing the print object's axis direction reciprocating motion simultaneously and print ink or gloss oil to form the pattern on bearing the print object, at this in-process, the lamp pearl can shine the surface of pivoted bear the print object, thereby solidify the ink or gloss oil on bearing the print object surface, because bear the print object and be located between shower nozzle and the photocuring module, consequently bear the print object can block the light that probably shines the shower nozzle in the light that a plurality of lamp pearls sent, thereby improve the shower nozzle and lead to the problem of jam because of the light that is sent by the lamp pearl.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 shows a schematic structural view of a photocurable assembly provided by an embodiment of the present utility model;

fig. 2 is a schematic structural view of a photo-curing module of a photo-curing assembly according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram showing a structure of a photo-curing assembly according to an embodiment of the present utility model when a photomask is provided;

fig. 4 shows a schematic circuit connection diagram of a photo-curing assembly according to an embodiment of the present utility model.

Description of main reference numerals:

100-nozzle; 200-a light curing module; 210-lamp beads; 220-mounting box; 221-bar-shaped holes; 222-sliding a baffle; 300-printing an object; 400-a control module; 500-mask; 510 a reflective layer; 520-an adjustment mechanism.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

Example 1

Referring to fig. 1, the present embodiment provides a photo-curing assembly for printing a pattern on a print object 300, which can be applied to a photo-curing inkjet printer. The light curing assembly includes a rotation mechanism, a spray head 100, and a light curing module 200. The rotation mechanism is used for driving the printing object 300 to rotate along the circumferential direction thereof. The nozzle 100 is located at one side of the circumferential direction of the print-receiving object 300, and the nozzle 100 can reciprocate along the axial direction of the print-receiving object 300 and print ink or varnish on the print-receiving object 300. The photo-curing module 200 is located at the other side of the circumferential direction of the print-receiving object 300, and the print-receiving object 300 is located between the nozzle 100 and the photo-curing module 200, and the photo-curing module 200 includes a plurality of light beads 210 disposed along the axial direction of the print-receiving object 300, where the print-receiving object 300 can block the light emitted by the plurality of light beads 210.

When the photocuring assembly provided by the embodiment of the application is used, the rotating mechanism can drive the printing object 300 to rotate along the circumferential direction of the printing object 300, and meanwhile, the spray head 100 capable of moving back and forth along the axial direction of the printing object 300 can print ink or gloss oil on the printing object 300 so as to form a pattern on the printing object 300, in the process, the lamp beads 210 can irradiate the surface of the rotating printing object 300, so that the ink or gloss oil on the surface of the printing object 300 is cured, and the printing object 300 is located between the spray head 100 and the photocuring module 200, so that the printing object 300 can block light possibly irradiated to the spray head 100 in light emitted by a plurality of lamp beads 210, and the problem that the spray head 100 is blocked due to light irradiation emitted by the lamp beads 210 is solved.

In addition, the inventors of the present application found that: in the use of the prior art uv curable inkjet printer, after the ink or varnish is printed on the surface of the print-receiving object 300 by the nozzle 100, the surface of the print-receiving object 300 is irradiated with uv light, which may cause the ink and varnish to be not leveled for a short period of time. In addition, for the cylindrical printing object 300, the printing object 300 needs to rotate along the circumferential direction at a high speed in the printing process, and the rotating printing object 300 can cause the phenomenon of ink scattering of the ink or varnish attached to the surface due to the centrifugal force, further cause that the ink or varnish cannot be leveled, cause that the surface of the cured ink or varnish is granular, and cause that the surface smoothness is reduced, thereby affecting the printing quality.

When the photocuring assembly is used, after the spray head 100 prints ink or gloss oil onto the rotating printing stock 300, a preliminary pattern can be formed, when the pattern on the printing stock 300 rotates from a position close to the spray head 100 to a position close to the photocuring module 200, the ink or gloss oil on the pattern can be leveled in the rotating process of the printing stock 300, so that the lamp beads 210 of the photocuring module 200 can irradiate and solidify the ink or gloss oil subjected to the leveling process, and the surface smoothness of the ink or gloss oil after solidification is improved.

The print-bearing object 300 may be a cylinder, and the cross section of the print-bearing object 300 may be a circle or a polygon.

The lamp beads 210 can emit ultraviolet light, and the ink or varnish can undergo curing reaction after being irradiated by the ultraviolet light. Wherein the ink includes, but is not limited to, color ink.

Example two

As shown in fig. 1 and 4, the present embodiment proposes a setting manner of the light curing module 200 for intelligently controlling the light curing assembly based on the first embodiment. In the above embodiment, optionally, the light curing assembly further includes a control module 400 and a moving mechanism for driving the spray head 100 to reciprocate, where the control module 400 is electrically connected to the moving mechanism and the plurality of lamp beads 210, respectively, and the control module 400 can selectively control the conduction of at least one lamp bead 210 corresponding to the position of the spray head 100 according to the position of the spray head 100.

Specifically, when the light curing assembly is used, the spray head 100 can reciprocate under the driving of the moving mechanism, and meanwhile, the control module 400 can control at least one lamp bead 210 corresponding to the position of the spray head 100 to be conducted according to the acquired signal of the current position of the spray head 100, so that the light emitting area of the light curing module 200 can reciprocate along with the spray head 100, the ink or the gloss oil on the surface of the printing object 300 can be irradiated by the lamp beads 210 which are relatively close, the light utilization rate of the lamp beads 210 is improved, the intensity of light transmitted to the spray head 100 is reduced, and the problem that the spray head 100 is blocked due to the fact that redundant light is transmitted to the spray head 100 can be solved. As shown in fig. 4, a plurality of beads 210 may be disposed in parallel in the circuit.

In addition, during the use process, the control module 400 can also adjust the light emitting power of the lamp beads 210, the number of conducted lamp beads 210, the area size of the light emitting area, and the like according to the liquid spraying amount of the spray head 100, the property parameters of the ink and the varnish, the area size of the printing area of the printing object 300, and the like, so as to control the light irradiation intensity, further make the light irradiation intensity meet the curing requirement, and improve the printing effect.

And, the control module 400 may optionally control the light emitting region of the light curing module 200 to move and optionally adjust the light emitting power of the light emitting region, etc., according to a user's instruction.

Wherein two spray heads 100 may be provided, one spray head 100 for spraying ink and the other spray head 100 for spraying gloss oil. The control module 400 may control the two light emitting areas of the photo-curing module 200 to move according to the current positions of the two spray heads 100, so as to cure the ink and the varnish, respectively.

Example III

As shown in fig. 2, the present embodiment proposes a setting manner of the photo-curing module 200 on the basis of the first or second embodiment. In the above embodiment, optionally, the light curing module 200 further includes a mounting box 220, the mounting box 220 has a receiving cavity, the plurality of light beads 210 are respectively disposed in the receiving cavity, the mounting box 220 is provided with a strip hole 221 along the arrangement direction of the plurality of light beads 210, and the light emitted by the plurality of light beads 210 can be irradiated on the printing object 300 through the strip hole 221.

Specifically, after the plurality of lamp beads 210 in the mounting box 220 are turned on, the edges of the strip-shaped holes 221 can be shielded by the light emitted by the plurality of lamp beads 210, so that a strip-shaped light emitting surface is formed, the strip-shaped holes 221 can shape the light emitted by the lamp beads 210, and the light emitting angle of the light emitting surface is adjusted, so that excessive light can not be transmitted to the nozzle 100 due to diffuse reflection and the like, and the problem of blockage of the nozzle 100 can be solved.

As shown in FIG. 2, in the above embodiment, alternatively, the width of the bar-shaped hole 221 is D, satisfying 10 mm.ltoreq.D.ltoreq.20 mm.

Specifically, when the width of the bar hole 221 is in the range of 10mm to 20mm, the light emitting angle of the light emitting surface can be adjusted, so that the light emitted by the lamp bead 210 and passing through the bar hole 221 can only irradiate on the printing object 300, and the area of the curing area of the printing object 300 can be controlled.

As shown in fig. 2, in the above-described embodiment, optionally, the photo-curing module 200 further includes a sliding shutter 222, the sliding shutter 222 being slidably connected to the mounting box 220, the sliding shutter 222 being capable of sliding in the width direction of the bar-shaped hole 221 and covering one side of the bar-shaped hole 221 in the width direction thereof.

Specifically, the sliding baffle 222 slidably connected with the mounting box 220 may be disposed at the edge of the strip hole 221, so that the width of the strip hole 221 can be adjusted by the sliding baffle 222, and the light-emitting angle of the light-emitting surface of the light-curing module 200 can be adaptively adjusted according to parameters such as the diameter of the printing object 300, so that the light emitted by the lamp bead 210 and transmitted through the strip hole 221 can only irradiate on the printing object 300.

In the above embodiment, the lamp beads 210 may include the first wavelength light emitting diode and the second wavelength light emitting diode, and the first wavelength light emitting diode and the second wavelength light emitting diode may be alternately arranged.

Specifically, the first wavelength light emitting diode or the second wavelength light emitting diode can be selectively controlled to be turned on according to the type of the ink or the varnish on the printing object 300, so that the light with different wavelengths correspondingly irradiates different inks or varnishes, and the curing effect is further improved. The first wavelength LED can emit light with the wavelength of 365nm plus or minus 2.5nm to irradiate the varnish, and the second wavelength LED can emit light with the wavelength of 395nm plus or minus 2.5nm to irradiate the ink.

As shown in fig. 3, in the above embodiment, optionally, the light curing assembly further includes a light cover 500, where the light cover 500 is located at one side or both sides of the circumferential direction of the print object 300, so as to block light propagating to the shower head 100 from among the light emitted from the lamp beads 210.

Specifically, the light shields 500 may be disposed on one or two opposite sides of the circumferential direction of the print object 300, so as to block the light possibly transmitted to the nozzle 100 from the light emitted from the lamp beads 210, thereby reducing the risk of blocking the nozzle 100.

As shown in fig. 3, in the above embodiment, optionally, a reflective layer 510 is disposed on a surface of the mask 500 facing the light curing module 200.

Specifically, a reflective layer 510 may be disposed on a surface of the mask 500 facing the light curing module 200, where the reflective layer 510 can reflect light emitted by the lamp beads 210 to form reflected light, and the reflected light can irradiate the printing object 300, so as to improve the light utilization rate, further reduce the energy consumption of the lamp beads 210 and improve the curing speed of the ink or the varnish.

As shown in fig. 3, in the above embodiment, optionally, the light curing assembly further includes an adjusting mechanism 520 connected to the mask 500, where the adjusting mechanism 520 is used to adjust the distance between the mask 500 and the print object 300.

Specifically, an adjusting mechanism 520 capable of adjusting the distance between the mask 500 and the print object 300 may be disposed, so that the distance between the mask 500 and the print object 300 may be adaptively adjusted according to the diameter of the print object 300, thereby reducing the gap width between the mask 500 and the print object 300, and finally reducing the light transmitted through the gap.

Wherein, adjustment mechanism 520 can include base, horizontal slip spare, vertical slip spare and fastener, and vertical slip spare is connected with light cover 500, and vertical slip spare can be followed vertical direction and horizontal slip spare sliding connection, and horizontal slip can be followed horizontal direction and base sliding connection, and the fastener can be used for fixed base and the relative position of horizontal slip spare and the relative position of vertical slip spare of fixed respectively.

Example IV

Another embodiment of the present application provides a photo-curable inkjet printer comprising the photo-curable assembly of any of the embodiments described above.

The photo-curing ink-jet printer provided by the embodiment of the application has the photo-curing assembly provided by any one of the embodiments, so that the photo-curing assembly provided by any one of the embodiments has all the beneficial effects, and is not described in detail herein.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Although embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.

Claims

1. A light curing assembly for printing a pattern on a substrate, comprising:

2. The light curing assembly of claim 1, further comprising a control module and a movement mechanism for driving the spray head to reciprocate, wherein the control module is electrically connected with the movement mechanism and the plurality of lamp beads, respectively, and the control module is capable of selectively controlling the conduction of at least one of the lamp beads corresponding to the position of the spray head according to the position of the spray head.

3. The light curing assembly of claim 1 or 2, wherein the light curing module further comprises a mounting box, the mounting box is provided with a containing cavity, a plurality of lamp beads are respectively arranged in the containing cavity, strip-shaped holes are formed in the mounting box along the arrangement direction of the lamp beads, and light emitted by the lamp beads can irradiate on the printing stock through the strip-shaped holes.

4. A light curing assembly as recited in claim 3, wherein said strip-shaped aperture has a width D that satisfies 10mm ∈d ∈20mm.

5. A light curing assembly as recited in claim 3, wherein the light curing module further comprises a slide shutter slidably connected to the mounting box, the slide shutter being capable of sliding in a width direction of the strip-shaped aperture and covering one side of the strip-shaped aperture in a width direction thereof.

6. The light curing assembly of claim 1, wherein the light beads comprise first wavelength light emitting diodes and second wavelength light emitting diodes, the first wavelength light emitting diodes and the second wavelength light emitting diodes being alternately arranged.

7. The light curing assembly of claim 1, further comprising a light shield positioned on one or both sides of the circumference of the print substrate to block light propagating to the spray head from among light emitted from the lamp beads.

8. The light curing assembly of claim 7, wherein a side of the light shield facing the light curing module is provided with a reflective layer.

9. The light curing assembly of claim 7, further comprising an adjustment mechanism coupled to the light shield, the adjustment mechanism configured to adjust a distance of the light shield from the object under printing.

10. A photo-curable inkjet printer comprising a photo-curable assembly according to any one of claims 1 to 9.