Spray head cleaning mechanism and pattern printing equipment

Abstract

The utility model relates to the technical field of hot melt ink jet, and discloses a nozzle cleaning mechanism and a printing device, the nozzle cleaning mechanism comprises a rack, the top of the rack is provided with a mounting platform, and the mounting platform is provided with a mounting groove; the scraper assembly is connected with the mounting platform and arranged in the mounting groove, the scraper assembly comprises a scraper body, and the upper end of the scraper body extends out of the mounting platform and is suitable for abutting against the to-be-cleaned position of the spray head body; the collecting assembly is arranged on the rack and located below the mounting platform, the mounting platform is provided with a discharging opening, and the discharging opening communicates with the mounting groove and the collecting assembly; and the driving assembly is suitable for enabling the scraper assembly and / or the spray head body to move in the horizontal direction. Under the driving of the driving assembly, the scraper assembly and / or the spray head body are / is made to move in the horizontal direction, so that solid hot melting ink accumulated at the bottom of the spray head is scraped into the collecting assembly to be collected, the problems of inclined spraying, spraying breaking and hole blocking of the spray head are avoided, and the quality and effect of patterns obtained after hot melting spray printing are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hot melt ink jet technology field, concretely relates to a nozzle cleaning mechanism and a printing equipment. BACKGROUND

[0002] Hot melt ink jet technology is to use solid ink as printing material, and the printing material is solid before use, and can be changed from solid state to fluid state by heat during use, and then is sprayed through a nozzle to complete printing, and such printing method can be used in photovoltaic, semiconductor and display manufacturing equipment.

[0003] Compared with conventional printing technology, solid hot melt ink exists at the bottom of the nozzle during printing by using hot melt printing technology, and the solid hot melt ink can cause the nozzle to be inclined, broken and blocked, which seriously affects the printing effect after printing. UTILITY MODEL CONTENT

[0004] Therefore, the utility model provides a nozzle cleaning mechanism and a printing equipment to solve the problem that solid hot melt ink is accumulated at the bottom of the nozzle during hot melt printing, which causes the nozzle to be inclined, broken and blocked.

[0005] In a first aspect, the utility model provides a nozzle cleaning structure, which comprises a rack, an installation platform provided at the top of the rack, an installation groove formed in the installation platform, a scraper assembly connected with the installation platform and arranged in the installation groove, a scraper body of the scraper assembly, an upper end of the scraper body extending out of the installation platform and being adapted to abut against a position to be cleaned of a nozzle body, a collecting assembly arranged on the rack below the installation platform, a discharge port formed in the installation platform, the discharge port being communicated with the installation groove and the collecting assembly, and a driving assembly adapted to move the scraper assembly and / or the nozzle body in a horizontal direction.

[0006] Beneficial effects: under the driving of the driving assembly, the scraper assembly and / or the nozzle body are moved in a horizontal direction, so that the solid hot melt ink accumulated at the bottom of the nozzle is scraped into the collecting assembly for collection, the problems of inclined, broken and blocked nozzle are avoided, and the quality and effect of the pattern after hot melt printing are improved.

[0007] In an optional embodiment, the scraper assembly further comprises a mounting seat connected with the scraper body, and the mounting seat is detachably connected with the installation platform.

[0008] Beneficial effects: by detachably connecting the mounting seat with the installation platform, the scraper body is maintained and replaced, and the use efficiency of the nozzle cleaning mechanism is improved.

[0009] In an alternative embodiment, the side of the scraper body facing the nozzle body is provided with a curved surface structure, which protrudes towards the nozzle body.

[0010] Beneficial effects: By providing the protruding curved surface structure, a stronger pressing force can be applied to the nozzle body when the curved surface structure is in contact with the nozzle body, thereby enhancing the cleaning effect of the solid ink on the bottom of the nozzle body.

[0011] In an alternative embodiment, the side of the scraper body facing away from the nozzle body is formed as an inclined surface, which is arranged inclined relative to the vertical direction, and the lower end of the inclined surface is arranged further away from the mounting slot than the upper end of the inclined surface.

[0012] Beneficial effects: By providing the side of the scraper body facing away from the nozzle body as an inclined surface, the ink scraped off by the scraper body can directly fall into the mounting slot, so that the scraper body is less likely to accumulate solid ink, thereby eliminating the need for additional cleaning of the scraper body, saving time and effort.

[0013] In an alternative embodiment, a plurality of scraper assemblies are provided, each of which is detachably connected to the mounting platform, and a plurality of the scraper assemblies are adapted to be arranged one-to-one corresponding to a plurality of the nozzle bodies.

[0014] Beneficial effects: By providing a plurality of scraper assemblies corresponding to a plurality of nozzle bodies, multiple nozzle bodies can be cleaned at a time, improving the cleaning efficiency. Each scraper assembly is detachably connected to the mounting platform, so that when a scraper assembly needs to be replaced or maintained, it does not need to be completely removed, improving the maintenance and replacement efficiency of the scraper assembly and the applicability of the nozzle cleaning structure.

[0015] In an alternative embodiment, the rack includes a bottom plate and a connecting plate, the bottom plate is in transmission connection with the driving assembly, the collecting assembly is arranged on the bottom plate, the lower end of the connecting plate is connected with the bottom plate, and the upper end of the connecting plate is connected with the bottom of the mounting platform.

[0016] In an alternative embodiment, the nozzle cleaning mechanism further comprises a heating element, which is arranged corresponding to the bottom of the mounting slot and connected with the mounting platform.

[0017] Beneficial effects: By providing a heating element, the solid ink scraped off by the scraper body and falling into the mounting slot is heated to a molten state, facilitating the flow from the discharge port to the collecting assembly for collection.

[0018] In an alternative embodiment, a plurality of heating elements are provided, which are arranged spaced apart along the horizontal direction.

[0019] Beneficial effect: by arranging several heating elements at intervals, thereby preventing uneven heating of the mounting platform, avoiding local temperature too low resulting in solid ink body deposition.

[0020] In an alternative embodiment, the discharge port is provided with a flow guide, the upper end of the flow guide is arranged in communication with the discharge port, the lower end of the flow guide extends downwardly out of the mounting platform, the top of the collection assembly is provided with an inlet, and the lower end of the flow guide is arranged corresponding to the inlet.

[0021] Beneficial effect: by arranging a flow guide, thereby further facilitating the flow of ink in a molten state after heating by the heating element into the collection assembly.

[0022] In a second aspect, the utility model also provides a kind of graph printing equipment, comprising: the above-mentioned nozzle cleaning mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the drawings needed in the specific embodiments or prior art description will be briefly introduced as follows, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0024] Figure 1 It is the front view of the nozzle cleaning mechanism of the utility model embodiment;

[0025] Figure 2 It is the structural schematic view of the nozzle cleaning mechanism of the utility model embodiment.

[0026] MARKED FOR EXPLANATION:

[0027] 1, rack;101, bottom plate;102, connecting plate;2, mounting platform;201, mounting groove;202, discharge port;3, scraper assembly;301, mounting seat;302, scraper body;4, collection assembly;5, driving assembly;6, heating element;7, flow guide;8, handle piece;9, nozzle body. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the utility model embodiments clearer, the technical scheme in the utility model embodiments will be clearly and completely described below in conjunction with the drawings in the utility model embodiments, obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the utility model.

[0029] The embodiments of the present application are described below Figure 1 and Figure 2 The embodiments of the present application are described below.

[0030] According to the embodiments of the present application, on the one hand, as shown in Figure 1 and Figure 2 , a nozzle cleaning mechanism is provided, comprising: a rack 1, a scraper assembly 3, a collection assembly 4 and a driving assembly 5. The top of the rack 1 is provided with a mounting platform 2, and the mounting platform 2 is provided with a mounting groove 201. The scraper assembly 3 is connected with the mounting platform 2 and is arranged in the mounting groove 201, and the scraper assembly 3 comprises a scraper body 302, the upper end of the scraper body 302 extends out of the mounting platform 2 and is adapted to abut the position to be cleaned of the nozzle body 9. The collection assembly 4 is arranged on the rack 1 and below the mounting platform 2, and the mounting platform 2 is provided with a discharge port 202, and the discharge port 202 communicates the mounting groove 201 with the collection assembly 4. The driving assembly 5 is adapted to move the scraper assembly 3 and / or the nozzle body 9 in the horizontal direction.

[0031] The nozzle cleaning mechanism of the present embodiment is driven by the driving assembly 5 to move the scraper assembly 3 and / or the nozzle body 9 in the horizontal direction, so as to scrape off the solid hot melt ink accumulated at the bottom of the nozzle into the collection assembly 4 for collection, thereby avoiding the problems of inclined spraying, broken spraying and blocked holes of the nozzle, and improving the quality and effect of the hot melt printed pattern.

[0032] It is worth noting that when the nozzle body 9 needs to be cleaned, the upper end of the scraper body 302 abuts the position to be cleaned of the nozzle body 9; then, the driving assembly 5 can move the scraper assembly 3 and / or the nozzle body 9 in the horizontal direction to scrape and clean the nozzle body 9. Specifically, during the scraping process, the scraper assembly 3 can be moved in the horizontal direction under the driving action of the driving assembly 5, at this time the nozzle body 9 can be fixed in position; or the nozzle body 9 can be moved in the horizontal direction, at this time the scraper assembly 3 is fixed in position; or the scraper assembly 3 and the nozzle body 9 can be moved in the horizontal direction, further, the moving directions of the scraper assembly 3 and the nozzle body 9 are opposite.

[0033] Specifically, in the present embodiment, the driving assembly 5 is in transmission connection with the rack 1, so that the driving assembly 5 drives the rack 1 to move in the horizontal direction, and in turn drives the scraper assembly 3 to move in the horizontal direction.

[0034] It is worth noting that the driving assembly 5 can be a linear motor, or a servo motor and a lead screw assembly, etc.

[0035] In one embodiment, as shown in Figure 2As shown in the drawings, the scraper assembly 3 further comprises a mounting seat 301, the mounting seat 301 is connected with the scraper body 302, and the mounting seat 301 is detachably connected with the mounting platform 2. By detachably connecting the mounting seat 301 with the mounting platform 2, the maintenance and replacement of the scraper body 302 are facilitated, and the use efficiency of the nozzle cleaning mechanism is improved.

[0036] In one embodiment, as shown in Figure 1 and Figure 2 , the scraper body 302 has an arc-shaped structure on the side facing the nozzle body 9, and the arc-shaped structure is protrudingly arranged towards the nozzle body 9. By arranging the protruding arc-shaped structure, a stronger pressing force can be applied to the nozzle body 9 when the arc-shaped structure contacts the nozzle body 9, thereby enhancing the cleaning effect of the solid ink body at the bottom of the nozzle body 9.

[0037] In one embodiment, as shown in Figure 1 and Figure 2 , the side of the scraper body 302 away from the nozzle body 9 forms an inclined surface, the inclined surface is arranged inclinedly relative to the vertical direction, and the lower end of the inclined surface is arranged away from the mounting groove 201 compared to the upper end of the inclined surface. By arranging the side of the scraper body 302 away from the nozzle body 9 as an inclined surface, the ink scraped off by the scraper body 302 directly falls into the mounting groove 201, so that the solid ink is not easily accumulated on the scraper body 302, thereby eliminating the need for additional cleaning of the scraper body 302, saving time and effort.

[0038] It is worth noting that, as shown in Figure 1 , the mounting groove 201 is located on the left side of the scraper body 302, so the lower end of the inclined surface is arranged more to the right compared to the upper end of the inclined surface.

[0039] In one embodiment, as shown in Figure 2 , the scraper assembly 3 is provided with a plurality of scraper assemblies 3, each scraper assembly 3 is detachably connected with the mounting platform 2, and the plurality of scraper assemblies 3 are adapted to be arranged one-to-one with the plurality of nozzle bodies 9. By arranging the plurality of scraper assemblies 3 corresponding to the plurality of nozzle bodies 9, a plurality of nozzle bodies 9 can be cleaned at one time, improving the cleaning efficiency, and each scraper assembly 3 is detachably connected with the mounting platform 2, so that when one scraper assembly 3 needs to be replaced and maintained, it is not necessary to remove all of them, improving the maintenance and replacement efficiency of the scraper assembly 3 and the applicability of the nozzle cleaning structure.

[0040] In one embodiment, as shown in Figure 1 and Figure 2 , the rack 1 comprises a bottom plate 101 and a connecting plate 102, the bottom plate 101 is drivingly connected with the driving assembly 5, the collecting assembly 4 is arranged on the bottom plate 101, the lower end of the connecting plate 102 is connected with the bottom plate 101, and the upper end of the connecting plate 102 is connected with the bottom of the mounting platform 2.

[0041] Specifically, in the embodiment, the connecting plates 102 are provided in plurality, and the plurality of connecting plates 102 are cross arranged to enhance the structural strength of the rack 1 and provide stronger support force to the mounting platform 2.

[0042] In one embodiment, as shown in Figure 1 and Figure 2 , the nozzle cleaning mechanism further comprises a heating member 6, which is arranged corresponding to the groove bottom of the installation groove 201 and connected with the mounting platform 2. By arranging the heating member 6, the solid ink body falling into the installation groove 201 is heated to a molten state by the scraper body 302, which facilitates the flow from the discharge port 202 to the collection assembly 4 for collection.

[0043] In one embodiment, as shown in Figure 1 and Figure 2 , the heating member 6 is provided in plurality, and the plurality of heating members 6 are arranged in a horizontal direction. By arranging the plurality of heating members 6 in a horizontal direction, the mounting platform 2 is prevented from being unevenly heated, and deposition of the solid ink body caused by excessively low local temperature is avoided.

[0044] Specifically, in the embodiment, the heating member 6 is a heating rod, which penetrates the lower side of the mounting platform 2 and is located below the groove bottom of the installation groove 201.

[0045] Preferably, the heating rod is provided in two, and the two heating rods are arranged in a horizontal direction in a uniform manner, which facilitates uniform heating of the installation groove 201 and avoids deposition of the solid ink body caused by excessively low local temperature at the bottom of the installation groove 201.

[0046] In one embodiment, as shown in Figure 2 , the discharge port 202 is arranged through the groove bottom of the installation groove 201. By arranging the discharge port 202 corresponding to the groove bottom of the installation groove 201, the ink body in the installation groove 201 can be more easily discharged.

[0047] Of course, in other alternative embodiments, the discharge port 202 can also be arranged corresponding to other positions of the mounting platform 2, for example, the discharge port 202 is arranged on the side wall of the installation groove 201. At this time, the discharge port 202 can be arranged close to the groove bottom of the installation groove 201, i.e. the position of the discharge port 202 is arranged lower to reduce the residual amount of the ink body in the installation groove 201; of course, the ink body in the installation groove 201 can also be sucked into the collection assembly 4 by suction.

[0048] In one embodiment, as shown in Figure 1As shown, the discharge port 202 is provided with a flow guide 7, the upper end of the flow guide 7 is arranged in communication with the discharge port 202, the lower end of the flow guide 7 extends out of the installation platform 2 downwardly, the top of the collection assembly 4 is provided with an inlet, and the lower end of the flow guide 7 is arranged correspondingly to the inlet. By arranging the flow guide 7, the molten ink after being heated by the heating element 6 can flow into the collection assembly 4 more conveniently.

[0049] Specifically, in the embodiment, the flow guide 7 is a horn-shaped structure with a wide upper end and a narrow lower end, which is beneficial to the molten ink after being heated by the heating element 6 to flow into the collection assembly 4 smoothly.

[0050] Specifically, in the embodiment, the collection assembly 4 can be any component with a collection function, such as a box body, a box, etc., and a cavity is arranged in the interior of the collection assembly 4, and an inlet is arranged on the top of the collection assembly 4 correspondingly to the flow guide 7, so that the molten ink can flow into the cavity of the collection assembly 4 smoothly.

[0051] In one embodiment, as shown in Figs. 1 and 2, the collection assembly 4 is arranged on the installation platform 2 correspondingly to the installation slot 201. Figure 1 and Figure 2 As shown, a handle 8 is arranged on the outer side wall of the collection assembly 4. By arranging the handle 8, the staff can take the collection assembly 4 more conveniently, and the collection assembly 4 can be cleaned more conveniently.

[0052] According to the embodiment of the utility model, on the other hand, a kind of graphic printing equipment is also provided, including the above-mentioned nozzle cleaning mechanism.

[0053] Specifically, in the embodiment, the driving assembly 5 is a module motion unit, which can realize driving function by mechanical transmission, or can realize driving function by electric control, and can be assembled into graphic printing equipment and drive rack 1 to move.

[0054] When the nozzle cleaning mechanism of the embodiment of the utility model is used, first, when nozzle body 9 needs to be cleaned, the upper end of scraper body 302 is abutted with the bottom of nozzle body 9, driving assembly 5 drives rack 1 to move along horizontal direction, and rack 1 carries scraper assembly 3 to move along horizontal direction, so as to scrape off solid ink accumulated on nozzle body 9;Then, heating element 6 is started to heat installation platform 2, so as to heat solid ink in installation slot 201 to molten state;Finally, molten ink is transferred into collection assembly 4, and the staff can take away collection assembly 4 for cleaning.

[0055] Although the embodiments of the utility model are described in combination with the drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the utility model, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A nozzle cleaning mechanism, characterized by, The utility model provides a nozzle cleaning mechanism, which comprises a rack (1) provided with a mounting platform (2) at the top, the mounting platform (2) is provided with a mounting groove (201), a scraper assembly (3) connected with the mounting platform (2) and arranged in the mounting groove (201), the scraper assembly (3) comprises a scraper body (302), the upper end of the scraper body (302) extends out of the mounting platform (2) and is adapted to abut the position to be cleaned of a nozzle body (9), a collecting assembly (4) arranged on the rack (1) below the mounting platform (2), the mounting platform (2) is provided with a discharge port (202) communicating the mounting groove (201) and the collecting assembly (4), a driving assembly (5) adapted to move the scraper assembly (3) and / or the nozzle body (9) in the horizontal direction. The scraper assembly (3) further comprises a mounting seat (301) connected with the scraper body (302), and the mounting seat (301) is detachably connected with the mounting platform (2). The scraper body (302) is provided with an arc surface structure on the side facing the nozzle body (9), and the arc surface structure is convexly arranged towards the nozzle body (9). The scraper body (302) is provided with an inclined surface on the side away from the nozzle body (9), the inclined surface is arranged to be inclined relative to the vertical direction, and the lower end of the inclined surface is arranged to be farther away from the mounting groove (201) than the upper end of the inclined surface. The scraper assembly (3) is provided with a plurality of scraper assemblies (3), each of which is detachably connected with the mounting platform (2), and the plurality of scraper assemblies (3) are adapted to be arranged one by one corresponding to a plurality of nozzle bodies (9).

2. The showerhead cleaning mechanism of claim 1, wherein The rack (1) comprises a bottom plate (101) and a connecting plate (102), the bottom plate (101) is drivingly connected with the driving assembly (5), the collecting assembly (4) is arranged on the bottom plate (101), the lower end of the connecting plate (102) is connected with the bottom plate (101), and the upper end of the connecting plate (102) is connected with the bottom of the mounting platform (2).

3. The nozzle cleaning mechanism of claim 1 or 2, wherein, The nozzle cleaning mechanism further comprises a heating member (6) arranged corresponding to the groove bottom of the mounting groove (201) and connected with the mounting platform (2).

4. The nozzle cleaning mechanism of claim 1 or 2, wherein, The heating member (6) is provided with a plurality of heating members (6) arranged at intervals in the horizontal direction.

5. The nozzle cleaning mechanism of claim 1 or 2, wherein The discharge port (202) is provided with a flow guide member (7), the upper end of the flow guide member (7) is arranged in communication with the discharge port (202), the lower end of the flow guide member (7) extends downward out of the mounting platform (2), the top of the collecting assembly (4) is provided with an inlet, and the lower end of the flow guide member (7) is arranged corresponding to the inlet.

6. The nozzle cleaning mechanism of claim 1 or 2, wherein The utility model provides a nozzle cleaning mechanism, which comprises a rack (1) provided with a mounting platform (2) at the top, the mounting platform (2) is provided with a mounting groove (201), a scraper assembly (3) connected with the mounting platform (2) and arranged in the mounting groove (201), the scraper assembly (3) comprises a scraper body (302), the upper end of the scraper body (302) extends out of the mounting platform (2) and is adapted to abut the position to be cleaned of a nozzle body (9), a collecting assembly (4) arranged on the rack (1) below the mounting platform (2), the mounting platform (2) is provided with a discharge port (202) communicating the mounting groove (201) and the collecting assembly (4), a driving assembly (5) adapted to move the scraper assembly (3) and / or the nozzle body (9) in the horizontal direction.

7. The nozzle cleaning mechanism of claim 1 or 2, wherein The utility model provides a nozzle cleaning mechanism.

8. The showerhead cleaning mechanism of claim 7, wherein, ​ 9. The nozzle cleaning mechanism of claim 1 or 2, wherein, ​ 10. An image printing apparatus characterized by comprising: ​ ​

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