Nozzle protection device and ink-jet printer

Abstract

The utility model discloses a nozzle protection device and an ink-jet printer. The nozzle protection device comprises a base plate and a protection structure, the base plate is provided with a limiting hole, the limiting hole is suitable for containing a nozzle, and a nozzle film of the nozzle is arranged towards the first end of the limiting hole; the protection structure covers the first end of the limiting hole and is provided with a protection hole, when the nozzle is installed on the substrate, a nozzle film of the nozzle is located on the inner side of the protection hole, and ink sprayed out of the nozzle can be sprayed out of the protection hole. According to the technical scheme provided by the utility model, the peripheral side of the nozzle can be protected so as to prevent impurities and scraps generated in the jet printing process from being directly splashed onto a nozzle film, the nozzle film is better protected, and the nozzle film can be shielded to a certain extent, so that the nozzle film is not easy to be irradiated by external light rays, jet printing materials at the nozzle film are prevented from being cured, and the service life of the nozzle film is prolonged. Therefore, the nozzle can be prevented from being blocked, the jet printing process is smoother, the service life of the nozzle can be prolonged, and the printing efficiency and the printing quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of printing machinery, in particular to a nozzle protection device and an inkjet printer. Background Art

[0002] In the printing industry, inkjet printers not only have fast printing speed and high printing quality, but also have a wide range of applications. For example, inkjet printers can print on media such as paper, plastic, and cloth; they can also print packaging materials quickly and efficiently to achieve personalized customization; and they can also perform high-resolution printing on materials such as glass, metal, and plastic in the manufacturing industry.

[0003] In an inkjet printer, the nozzle is mainly used to release ink in the form of a jet. The nozzle can control the jet speed, intensity and direction of the fluid by adjusting parameters such as the nozzle opening size, shape and angle, which enables the nozzle to achieve precise jet control in various application fields.

[0004] In the prior art, during the printing process, one end of the inkjet printer's nozzle is connected to the ink cartridge and the other end is aimed at the printing area of ​​the product. Since the inkjet printer nozzle is very close to the printing area, it is easily scratched by foreign debris generated by the printing process, affecting the printing effect; or since the nozzle is exposed during the printing process and easily exposed to light, the printing material solidifies at the nozzle and clogs the nozzle. The traditional nozzle setting method makes the nozzle easy to be damaged during use, resulting in frequent replacement and maintenance of the nozzle, affecting the printing quality and printing efficiency. Utility Model Content

[0005] Therefore, the technical solution provided by the utility model is to solve the problem that the nozzle of the traditional inkjet printer is easily damaged and blocked during use, thereby affecting the overall printing quality and printing efficiency.

[0006] In order to achieve the above-mentioned purpose, the utility model proposes a nozzle protection device, which is suitable for protecting the nozzle of an inkjet printer. The nozzle includes a nozzle body and a nozzle film. The nozzle film is provided with micropores for ink to be ejected. The nozzle protection device includes:

[0007] A substrate, wherein a limiting hole is provided on the substrate, wherein the limiting hole is suitable for accommodating the nozzle therein, and the nozzle membrane of the nozzle is arranged toward the first end of the limiting hole;

[0008] The protective structure is covered at the first end of the limiting hole and has a protective hole. When the nozzle is installed on the substrate, the nozzle membrane of the nozzle is located on the inner side of the protective hole, and the ink sprayed from the nozzle can be sprayed out from the protective hole.

[0009] Optionally, a gap is formed between the limiting hole and the nozzle in the radial direction, and the protective structure includes:

[0010] A protection plate, which is covered at the first end of the limiting hole, at least a portion of which can cover the gap, and a through hole is provided on the protection plate, and the through hole is relatively connected to the protection hole;

[0011] A protection cover is connected to the protection plate and covers the through hole. The protection hole is provided on the protection cover and is suitable for corresponding to the nozzle film.

[0012] Optionally, the protection hole is arranged in a long and narrow shape, and the shape of the protection hole is suitable for matching with the shape of the nozzle membrane of the nozzle.

[0013] Optionally, a plurality of the protection holes are provided, and the plurality of protection holes are arranged side by side and spaced apart along the width direction thereof.

[0014] Optionally, a groove is provided on the substrate, the first end of the limiting hole is located in the bottom of the groove, and the protection structure is arranged in the groove and is flush with the notch of the groove.

[0015] Optionally, the protection plate is provided with two support arms corresponding to the through hole, the two support arms are respectively protruding on two opposite sides of the through hole, the protection cover is supported on the two support arms, and the peripheral side walls of the protection cover are abutted against the peripheral side walls of the through hole.

[0016] Optionally, the two support arms are flush with the bottom side of the protection plate, and the bottom side of the protection cover is flush with the bottom side of the support arms.

[0017] Optionally, a plurality of first mounting holes are provided on the bottom of the groove, and the plurality of first mounting holes are arranged around the peripheral side of the through hole. The nozzle protection device also includes a plurality of first magnetic parts, and the plurality of first magnetic parts are arranged one by one in the plurality of first mounting holes, wherein the protection plate is a magnetically attractive plate, and the plurality of first magnetic parts are all magnetically attracted to the protection plate.

[0018] Optionally, the substrate is provided with a plurality of the limiting holes, the protection structure is provided with a plurality of sets, and the plurality of sets of the protection structure are arranged in a one-to-one correspondence with the plurality of the limiting holes.

[0019] The utility model also provides an inkjet printer, comprising:

[0020] Printer body;

[0021] A plurality of nozzles are arranged on the printer body;

[0022] The nozzle protection device is arranged on the printer body, and the plurality of limiting holes of the nozzle protection device are sleeved on the plurality of nozzles in a one-to-one correspondence.

[0023] The technical solution provided by the utility model has the following beneficial effects:

[0024] The nozzle protection device provided by the utility model includes a substrate and a protection structure, wherein a limiting hole is provided on the substrate, the position of the nozzle can be limited by the limiting hole, and the liquid spraying end of the nozzle can be protected by the protection structure; specifically, the protection structure cover is arranged on the first end of the limiting hole, so that the protection structure can protect the peripheral side of the nozzle, so as to avoid foreign debris generated during the printing process from directly splashing onto the nozzle membrane, so as to better protect the nozzle membrane; moreover, a protection hole is provided on the protection structure, and the nozzle membrane is located on the inner side of the protection hole, the ink sprayed from the nozzle membrane can pass through the protection hole to facilitate printing, and the nozzle membrane can be shielded to a certain extent through the protection hole, so that the nozzle membrane is not easily exposed to external light, so that the solidification of the printing material at the nozzle membrane can be avoided, the nozzle can be avoided from being blocked, the printing process can be smoother, and the service life of the nozzle can be extended, and the printing efficiency and printing quality can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0026] Figure 1 A schematic structural diagram of an embodiment of a nozzle protection device provided by the utility model;

[0027] Figure 2 for Figure 1 A schematic structural diagram of the nozzle protection device from another perspective;

[0028] Figure 3 for Figure 1 A schematic diagram of an exploded structure of the nozzle protection device described in;

[0029] Figure 4 for Figure 1 A schematic cross-sectional structure diagram of the nozzle protection device described in the figure;

[0030] Figure 5 for Figure 1 Another cross-sectional structural schematic diagram of the nozzle protection device described in;

[0031] Figure 6 for Figure 5 Schematic diagram of the enlarged structure of detail A.

[0032] Description of Figure Numbers:

[0033] 100-nozzle protection device; 1-base plate; 11-limiting hole; 12-groove; 13-first mounting hole; 2-protection structure; 21-protection plate; 211-through hole; 212-support arm; 22-protection cover; 221-protection hole; 3-first magnetic attraction member; 200-nozzle; 201-nozzle body; 202-nozzle membrane.

[0034] The realization of the purpose, functional characteristics and excellent effects of the utility model will be further explained below in conjunction with specific embodiments and drawings. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] It should be noted that if a directional indication is involved in the embodiments of the present invention, the directional indication is only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0037] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0038] The utility model provides a nozzle protection device 100, which is suitable for protecting the nozzle 200 of an inkjet printer to prevent the nozzle 200 from being damaged. The nozzle 200 includes a nozzle body 201 and a nozzle membrane 202, the nozzle membrane 202 is arranged corresponding to the nozzle of the nozzle body 201, and the nozzle of the nozzle body 201 and the nozzle membrane 202 are both provided with regularly arranged micropores. The piezoelectric crystal is used to convert electrical energy into the kinetic energy of ink droplets and spray them on the screen, so that the ink droplets are sprayed from the nozzle of the nozzle body 201 through the nozzle membrane 202 to form the text, graphics or barcode of the inkjet code. Since the nozzle membrane 202 is made of polyimide film, be careful when storing, assembling, cleaning and soaking the nozzle 200; if it is damaged by a hard object, the ray of the nozzle will not be straight, affecting the quality of the inkjet code. Moreover, once the nozzle film 202 is damaged or falls off, the nozzle 200 cannot be used anymore. Therefore, when using the inkjet printer, special attention should be paid to protecting the nozzle film 202, and the nozzle part should not be hit or wiped, and the nozzle 200 should not be soaked for a long time or the cleaning liquid should not be injected into the nozzle 200 for a long time. Therefore, in the utility model, the nozzle 200 is protected by the nozzle protection device 100, so that the nozzle 200 is not easily damaged, and the service life of the nozzle 200 is extended.

[0039] Specifically, see Figures 1 to 3 In this embodiment, the nozzle protection device 100 includes a substrate 1 and a protection structure 2, wherein a limiting hole 11 is provided on the substrate 1, and the limiting hole 11 is suitable for accommodating at least part of the nozzle 200 therein, and making the nozzle membrane 202 of the nozzle 200 be arranged toward the first end of the limiting hole 11; the protection structure 2 is covered on the first end of the limiting hole 11 and has a protection hole 221. When the nozzle 200 is installed on the substrate 1, the nozzle membrane 202 of the nozzle 200 is located on the inner side of the protection hole 221, and the ink sprayed from the nozzle 200 can be sprayed out from the protection hole 221.

[0040] In this embodiment, the position of the nozzle 200 can be limited by the limiting hole 11 on the substrate 1, and the liquid spraying end of the nozzle 200 can be protected by the protective structure 2; specifically, the protective structure 2 is covered on the first end of the limiting hole 11, so that the protective structure 2 can protect the peripheral side of the nozzle 200 to prevent foreign debris generated during the printing process from directly splashing onto the nozzle membrane 202, thereby better protecting the nozzle membrane 202; moreover, a protective hole 221 is provided on the protective structure 2, and the nozzle membrane 202 is located on the inner side of the protective hole 221, and the ink sprayed from the nozzle membrane 202 can pass through the protective hole 221 to facilitate printing, and the nozzle membrane 202 can be shielded to a certain extent by the protective hole 221, so that the nozzle membrane 202 is not easily exposed to external light, thereby preventing the solidification of the printing material at the nozzle membrane 202, preventing the nozzle 200 from being blocked, making the printing process smoother, and extending the service life of the nozzle 200, thereby improving the printing efficiency and printing quality.

[0041] Among them, combined Figure 1 and Figure 2 As shown, the substrate 1 is roughly in the shape of a square flat plate, and the substrate 1 has a long side and a short side. The limiting hole 11 is also arranged in a square shape, and the length direction of the limiting hole 11 is consistent with the length direction of the substrate 1. When the nozzle protection device 100 is normally used, the length direction of the substrate 1 is extended in the left-right direction, and the width direction of the substrate 1 is extended in the front-back direction. Based on this, the description of the relevant orientation in the utility model can be used as a reference. The first end of the limiting hole 11 is located at the bottom end of the substrate 1, and the nozzle 200 is arranged above the substrate 1, and the nozzle of the nozzle 200 is inserted into the limiting hole 11.

[0042] Furthermore, combined with Figure 3 , Figure 5 and Figure 6As shown in the figure, a gap is formed radially between the limiting hole 11 and the nozzle 200, that is, there is an installation gap between the peripheral side of the nozzle and the limiting hole 11, in order to prevent external debris or ink from rebounding into the gap. The protection structure 2 includes a protection plate 21 and a protection cover 22. The protection plate 21 is covered at the first end of the limiting hole 11. At least part of the protection plate 21 can cover the gap, thereby shielding the gap between the limiting hole 11 and the nozzle 200. A through hole 211 is provided on the protection plate 21, and the through hole 211 is relatively connected to the protection hole 221; the protection cover 22 is connected to the protection plate 21 and covers the through hole 211, and the protection hole 221 is provided on the protection cover 22 and is suitable for corresponding to the nozzle membrane 202. The ink ejected from the nozzle 200 can be ejected from the nozzle membrane 202 and from the protection hole 221 to be printed on the area to be printed.

[0043] The protection hole 221 is arranged in a narrow and long shape, and the shape of the protection hole 221 is adapted to the shape of the nozzle film 202, so as to avoid the protection hole 221 from blocking the micropores on the nozzle film 202, so that the ink ejected from each micropore of the nozzle film 202 is better sprayed into the area to be sprayed. In addition, the protection hole 221 is arranged in a narrow and long shape to avoid the opening being too large, which affects the protection effect, and the narrow and long protection hole 221 can better block external light and prevent light from directly irradiating the nozzle film 202.

[0044] Preferably, a plurality of the protection holes 221 are provided, and the plurality of protection holes 221 are arranged at intervals along the width direction thereof, so that the corresponding area of ​​the nozzle film 202 is larger, thereby better protecting the nozzle film 202, making the printable pattern area larger and the printing effect better.

[0045] In addition, combined Figure 3 , Figure 5 and Figure 6 As shown, a groove 12 is further provided on the substrate 1, and the groove 12 is located at the bottom of the substrate 1. The first end of the limiting hole 11 is located in the groove bottom of the groove 12, and the protection structure 2 is provided in the groove 12 and is flush with the notch of the groove 12. The notch of the groove 12 is arranged downward, and the groove bottom of the groove 12 is the side opposite to the notch. The protection structure 2 is accommodated in the groove 12 so that the protection structure 2 does not protrude from the bottom of the substrate 1, so that the bottom of the entire nozzle protection device 100 is smoother, and it is not easy to be scratched by sharp corners, and the structure is more compact, and the volume of the entire nozzle protection device 100 is smaller.

[0046] Furthermore, if Figure 6As shown in , the protection plate 21 is provided with two support arms 212 corresponding to the through hole 211, and the two support arms 212 are respectively protruding and arranged on opposite sides of the through hole 211, and the protection cover 22 is supported on the two support arms 212, and the peripheral side wall of the protection cover 22 is in contact with the peripheral side wall of the through hole 211. The protection cover 22 is fixed on the substrate 1 through the protection plate 21, the bottom of the protection cover 22 is supported by the two support arms 212, and the peripheral side of the protection cover 22 is limited by the protection plate 21, and the top of the protection cover 22 is limited by the nozzle film 202, so that the protection cover 22 is limited in all directions, can be better limited and fixed on the substrate 1, and is easy to disassemble and assemble.

[0047] The two support arms 212 are flush with the bottom side of the protection plate 21, and the bottom side of the protection cover 22 is flush with the bottom side of the support arms 212. The two support arms 212 are both extended along the length direction of the substrate 1 to better support the protection cover 22, and make the bottom of the protection cover 22, the bottom of the protection plate 21, and the bottom of the substrate 1 all on the same plane, so that the bottom of the entire nozzle protection device 100 is flatter and more convenient for printing, and the distance between the nozzle 200 and the area to be printed is not affected by the local protrusion of the protection structure 2.

[0048] It is understandable that there are many ways to fix the protection structure 2 to the substrate 1. For example, the protection structure 2 can be fixed to the substrate 1 by connecting members (such as screws, bolts, etc.); or, the protection structure 2 can be fixed to the substrate 1 by a snap-fit ​​structure, etc.

[0049] Preferably, combined Figures 3 to 5 As shown, a plurality of first mounting holes 13 are provided on the bottom of the groove 12, and the plurality of first mounting holes 13 are arranged around the circumference of the through hole 211. The nozzle protection device 100 also includes a plurality of first magnetic parts 3, and the plurality of first magnetic parts 3 are arranged in the plurality of first mounting holes 13 one by one, wherein the protection plate 21 is a magnetically attractive plate, and the plurality of first magnetic parts 3 are magnetically attracted to the protection plate 21. Fixing the protection plate 21 to the substrate 1 by magnetic attraction is obviously more convenient for assembly and disassembly, and avoids forming too many connection holes on the protection plate 21, which makes it easy for ink to enter the connection holes, causing pollution and difficulty in cleaning. Among them, the material of the protection plate 21 is a material that can be magnetically attracted, such as iron, steel, nickel, etc.

[0050] Since each inkjet printer is generally provided with a plurality of nozzles 200, Figure 1 and Figure 2As shown, a plurality of the limiting holes 11 may be provided on the substrate 1, and a plurality of sets of the protective structure 2 may be provided. The plurality of sets of the protective structure 2 are arranged in a one-to-one correspondence with the plurality of the limiting holes 11, that is, a plurality of nozzles 200 may be accommodated in the plurality of limiting holes 11 in a one-to-one correspondence, thereby protecting the plurality of nozzles 200 and ensuring the printing effect of each nozzle 200.

[0051] The utility model also provides an inkjet printer, which includes a printer body, a plurality of nozzles 200, and the nozzle protection device 100. The plurality of nozzles 200 are arranged on the printer body, the nozzle protection device 100 is arranged on the printer body, and the plurality of limiting holes 11 of the nozzle protection device 100 are sleeved on the plurality of nozzles 200 in a one-to-one correspondence. The nozzle protection device 100 can protect the plurality of nozzles 200, so that the nozzles 200 of the inkjet printer are not easily damaged or blocked when working, so that the printing process is smoother, and the printing effect of the inkjet printer is better and the service life is longer.

[0052] Moreover, a positioning column may be provided on the substrate 1, and a positioning hole may be provided on the nozzle body 201, and the positioning column and the positioning hole may be plugged and matched, so that the nozzle 200 may be initially positioned on the substrate 1. Furthermore, a second mounting hole may be provided on the substrate 1, and a second magnetic attraction member may be provided in the second mounting hole. The material of the nozzle body 201 may also be set to a material that can be magnetically attracted, such as iron, steel, nickel, etc., and the second magnetic attraction member is magnetically attracted to the nozzle body 201, so that the nozzle 200 is fixed on the substrate 1, making it more convenient to disassemble and assemble the nozzle 200.

[0053] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure made using the contents of the specification and drawings of the present invention, or directly or indirectly used in other related technical fields, is also included in the patent protection scope of the present invention.

Claims

1. A nozzle protection device, suitable for protecting the nozzle of an inkjet printer, wherein the nozzle comprises a nozzle body and a nozzle film, wherein the nozzle film is provided with micropores for ink to be ejected, wherein: The nozzle protection device comprises: A substrate, wherein a limiting hole is provided on the substrate, wherein the limiting hole is suitable for accommodating the nozzle therein, and the nozzle membrane of the nozzle is arranged toward the first end of the limiting hole; The protective structure is covered at the first end of the limiting hole and has a protective hole. When the nozzle is installed on the substrate, the nozzle membrane of the nozzle is located on the inner side of the protective hole, and the ink sprayed from the nozzle can be sprayed out from the protective hole.

2. The nozzle protection device according to claim 1, characterized in that: A gap is formed between the limiting hole and the nozzle in the radial direction, and the protective structure includes: A protection plate, which is covered at the first end of the limiting hole, at least a portion of which can cover the gap, and a through hole is provided on the protection plate, and the through hole is relatively connected to the protection hole; A protection cover is connected to the protection plate and covers the through hole. The protection hole is provided on the protection cover and is suitable for corresponding to the nozzle film.

3. The nozzle protection device according to claim 2, characterized in that: The protection hole is arranged in a narrow and long shape, and the shape of the protection hole is suitable for matching the shape of the nozzle membrane of the nozzle.

4. The nozzle protection device according to claim 2, characterized in that: There are a plurality of protection holes, and the plurality of protection holes are arranged side by side and spaced apart along the width direction thereof.

5. The nozzle protection device according to claim 2, characterized in that: The base plate is provided with a groove, the first end of the limiting hole is located in the groove bottom of the groove, and the protection structure is arranged in the groove and is flush with the notch of the groove.

6. The nozzle protection device according to claim 5, characterized in that: The protection plate is provided with two support arms corresponding to the through hole, the two support arms are respectively protruded on two opposite sides of the through hole, the protection cover is supported on the two support arms, and the peripheral side wall of the protection cover is in contact with the peripheral side wall of the through hole.

7. The nozzle protection device according to claim 6, characterized in that: The two support arms are flush with the bottom side of the protection plate, and the bottom side of the protection cover is flush with the bottom side of the support arms.

8. The nozzle protection device according to claim 5, characterized in that: A plurality of first mounting holes are provided on the bottom of the groove, and the plurality of first mounting holes are arranged around the peripheral side of the through hole. The nozzle protection device also includes a plurality of first magnetic components, and the plurality of first magnetic components are arranged in the plurality of first mounting holes in a one-to-one correspondence, wherein the protection plate is a magnetically attractive plate, and the plurality of first magnetic components are all magnetically attracted to the protection plate.

9. The nozzle protection device according to claim 1, characterized in that: The base plate is provided with a plurality of the limiting holes, the protection structure is provided with a plurality of sets, and the plurality of sets of the protection structure are arranged in one-to-one correspondence with the plurality of the limiting holes.

10. An inkjet printer, characterized in that: include: Printer body; A plurality of nozzles are arranged on the printer body; The nozzle protection device according to any one of claims 1 to 9 is arranged on the printer body, and the plurality of limiting holes of the nozzle protection device are sleeved on the plurality of nozzles in a one-to-one correspondence.

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