CN219236545U

CN219236545U - Ink jet head assembly

Info

Publication number: CN219236545U
Application number: CN202320155816.6U
Authority: CN
Inventors: 陈坚成; 李艺椿
Original assignee: Jiangmen Abq Electronic Material Co ltd
Current assignee: Jiangmen Abq Electronic Material Co ltd
Priority date: 2023-01-19
Filing date: 2023-01-19
Publication date: 2023-06-23
Anticipated expiration: 2033-01-19

Abstract

The utility model discloses an ink jet head assembly, which comprises a jet head body, a needle valve, an elastic member and a movable rod, wherein the jet head body is provided with a cavity, the bottom of the jet head body is provided with a nozzle communicated with the cavity, the top of the jet head body is provided with an ink injection port communicated with the cavity, the needle valve is arranged in the cavity, the bottom of the needle valve is provided with a conical part, the conical part is used for conducting or blocking the nozzle, the elastic member is arranged at the top of the needle valve, the elastic member is used for applying elastic force to the needle valve so as to block the nozzle, the movable rod penetrates through the jet head body, the movable rod is horizontally arranged, and the movable rod is connected with the needle valve through a horizontal and vertical linkage mechanism.

Description

Ink jet head assembly

Technical Field

The utility model relates to the technical field of ink jet heads, in particular to an ink jet head assembly.

Background

After the existing ink jet head is closed, the nozzle is not tightly closed, and as the ink remains in the cavity inside the ink jet head, the ink flows out from the nozzle, so that the phenomenon of wiredrawing is caused, namely when the ink is packaged, and the bag is replaced, part of the ink can drop to the outside of the bag.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides an ink jet head assembly, which can close a nozzle tightly and prevent the phenomenon of stringing.

An ink jet head assembly according to an embodiment of the present utility model includes: according to some embodiments of the utility model, there is provided: the spray head comprises a spray head body, a spray head cover and a spray head cover, wherein the spray head body is provided with a cavity, a nozzle communicated with the cavity is arranged at the bottom of the spray head body, and an ink injection port communicated with the cavity is arranged at the top of the spray head body; the needle valve is arranged in the cavity, and a conical part is arranged at the bottom of the needle valve and is used for conducting or blocking the nozzle; the elastic piece is arranged at the top of the needle valve and is used for applying elastic force to the needle valve so as to block the nozzle; the movable rod penetrates through the spray head body, the movable rod is horizontally arranged, the movable rod is connected with the needle valve through a horizontal and vertical linkage mechanism, and when the movable rod moves horizontally, the needle valve moves vertically.

The ink jet head assembly provided by the embodiment of the utility model has at least the following beneficial effects: through set up the needle valve in the cavity of shower nozzle body, the needle valve is equipped with the cone portion, and the cone portion of needle valve plugs up the spout under the effect of elastic component, guarantees that printing ink can not leak from the spout, when needs opening the spout, and the movable rod makes horizontal movement linkage needle valve for the needle valve makes vertical motion, and the needle valve upward movement compresses the elastic component, and the cone portion leaves the spout, thereby opens the spout.

According to some embodiments of the utility model, the horizontal-vertical linkage comprises a cam fixedly connected to the needle valve, the cam comprising a boss, the top of the movable rod abutting the boss of the cam.

According to some embodiments of the utility model, the horizontal-vertical linkage mechanism comprises a chute and a slide block, wherein the chute is arranged on the needle valve, the slide block is arranged on the movable rod, and the slide block is in sliding connection with the chute.

According to some embodiments of the utility model, the chute is arcuate.

According to some embodiments of the utility model, the elastic element is provided as a spring.

According to some embodiments of the utility model, the needle valve is provided with a vertical surface, and the chute is provided on the vertical surface.

According to some embodiments of the utility model, the movable rod is driven by a cylinder.

According to some embodiments of the utility model, a sealing ring is arranged at the nozzle, and the conical part is inserted into the sealing ring.

According to some embodiments of the utility model, the spray head body comprises a first housing and a second housing, the first housing and the second housing forming the cavity therebetween, the first housing and the second housing being threadably connected.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic diagram of an ink jet head assembly according to an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of an ink jet head assembly according to an embodiment of the present utility model;

FIG. 3 is a cross-sectional view of an ink jet head assembly according to some embodiments of the present utility model;

FIG. 4 is a cross-sectional view of an ink jet head assembly according to some embodiments of the present utility model;

FIG. 5 is a schematic illustration of the needle valve of an ink jet head assembly according to some embodiments of the present utility model.

Reference numerals:

an ink jet head assembly 1000;

the nozzle body 100, the cavity 110, the nozzle 120, the ink filling port 130, the first housing 140, the second housing 150, the channel 160;

needle valve 200, conical portion 210, vertical surface 220;

an elastic member 300;

movable bar 400, horizontal and vertical linkage 410, cam 420, protrusion 430, chute 440, and slider 450.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

Referring to fig. 1 to 5, an ink jet head assembly 1000 according to an embodiment of the present utility model includes a jet head body 100, a needle valve 200, an elastic member 300, and a movable rod 400, wherein a cavity 110 is provided in the jet head body 100, the cavity 110 may be in a cylindrical structure, the cavity 110 extends in a vertical direction, a nozzle 120 communicating with the cavity 110 is provided at a bottom of the jet head body 100, an ink injection port 130 communicating with the cavity 110 is provided at a top of the jet head body 100, the ink injection port 130 is used for connection with an ink delivery tube, the needle valve 200 is in a rod-shaped structure, the needle valve 200 extends in a vertical direction, the needle valve 200 is provided in the cavity 110, a conical portion 210 is provided at a bottom of the needle valve 200, a tip end of the conical portion 210 is disposed downward, the conical portion 210 may extend into the nozzle 120, the conical portion 210 may be used for turning on or off the nozzle 120, and a peripheral wall at the nozzle 120 may be configured in a conical shape, with a good fit with the conical portion 210. The elastic member 300 is disposed at the top of the needle valve 200, the elastic member 300 may be configured as a spring, one end of the elastic member 300 abuts against the top wall of the cavity 110, the other end of the elastic member 300 abuts against the top of the needle valve 200, and the elastic member 300 is configured to apply an elastic force to the needle valve 200, so that the conical portion 210 of the needle valve 200 compresses the nozzle head to block the nozzle 120. The movable rod 400 is inserted into the nozzle body 100, the movable rod 400 is horizontally arranged, the movable rod 400 is connected with the needle valve 200 through a horizontal and vertical linkage mechanism 410, and when the movable rod 400 moves horizontally, the needle valve 200 moves vertically.

By disposing the needle valve 200 in the cavity 110 of the nozzle body 100, the needle valve 200 is provided with the conical portion 210, the conical portion 210 of the needle valve 200 blocks the nozzle 120 under the action of the elastic member 300, so that ink is prevented from leaking from the nozzle 120, and when the nozzle 120 needs to be opened, the movable rod 400 moves horizontally to link the needle valve 200, so that the needle valve 200 moves vertically, and the needle valve 200 moves upwards to compress the elastic member 300, so that the conical portion 210 leaves the nozzle 120, and the nozzle 120 is opened.

Referring to fig. 4, the ink injection port 130 communicates with the cavity 110 through a passage 160, the passage 160 is curved to avoid the structure of the needle valve 200 and the movable rod 400, and the ink injection port 130 is disposed at the top, facilitating the flow of ink.

Referring to fig. 3, according to some embodiments of the present utility model, the horizontal-vertical linkage 410 includes a cam 420, the cam 420 is fixedly connected with the needle valve 200, the cam 420 includes a protrusion 430, the protrusion 430 is disposed downward, the top of the movable lever 400 is abutted with the protrusion 430 of the cam 420, when the movable lever 400 is extended, the movable lever 400 is in point contact with the lowest position of the cam 420, so that the needle valve 200 moves upward, and when the movable lever 400 is retracted, the needle valve 200 moves downward.

Referring to fig. 2, according to some embodiments of the present utility model, the horizontal-vertical linkage 410 includes a sliding groove 440 and a sliding block 450, the sliding groove 440 is provided to the needle valve 200, the sliding block 450 is provided to the movable rod 400, and the sliding block 450 is slidably coupled to the sliding groove 440. The sliding groove 440 may have an arc shape, specifically, a U shape or a circular arc shape, and the sliding block 450 has a circular structure and moves smoothly.

Referring to fig. 5, according to some embodiments of the present utility model, the needle valve 200 is provided with a vertical surface 220, and the sliding groove 440 is provided on the vertical surface 220, or the cam 420 is provided on the vertical surface 220. The vertical surface 220 can leave enough space, and the movable rod 400 is attached to the needle valve 200, so that the movable rod 400 is well matched with the needle valve 200 and is not easy to loosen.

Referring to fig. 1, a movable rod 400 is driven to move by a cylinder according to some embodiments of the present utility model.

According to some embodiments of the present utility model, a sealing ring is provided at the nozzle 120, the conical portion 210 is inserted into the sealing ring, and the conical portion 210 is matched with the sealing ring, so that sealing performance can be improved, ink leakage can be avoided, an annular groove can be provided at the peripheral wall of the nozzle 120, and the sealing ring is installed in the annular groove.

Referring to fig. 2, according to some embodiments of the present utility model, the spray head body 100 includes a first housing 140 and a second housing 150, a cavity 110 is formed between the first housing 140 and the second housing 150, and the spray nozzle 120 is disposed on the first housing 140, and the first housing 140 and the second housing 150 are screw-coupled. The first and

second housings

140 and 150 can be easily removed, the inside of the cavity 110 can be cleaned, or the needle valve 200 can be exposed to facilitate the removal.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, inner, outer, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model.

In the description of the present utility model, the description of the first and second embodiments is only for the purpose of distinguishing technical features, and should not be construed as indicating or implying relative importance or implying the number of technical features indicated or the precedence of technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, and finally, it should be described that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present utility model.

Claims

1. An ink jet head assembly, comprising:

the spray head comprises a spray head body, a spray head cover and a spray head cover, wherein the spray head body is provided with a cavity, a nozzle communicated with the cavity is arranged at the bottom of the spray head body, and an ink injection port communicated with the cavity is arranged at the top of the spray head body;

the needle valve is arranged in the cavity, and a conical part is arranged at the bottom of the needle valve and is used for conducting or blocking the nozzle;

the elastic piece is arranged at the top of the needle valve and is used for applying elastic force to the needle valve so as to block the nozzle;

the movable rod penetrates through the spray head body, the movable rod is horizontally arranged, the movable rod is connected with the needle valve through a horizontal and vertical linkage mechanism, and when the movable rod moves horizontally, the needle valve moves vertically.

2. The ink ejection head assembly of claim 1, wherein the horizontal vertical linkage comprises a cam fixedly connected to the needle valve, the cam comprising a boss, the top of the movable lever abutting the boss of the cam.

3. The ink jet head assembly of claim 1, wherein said horizontal vertical linkage comprises a chute and a slider, said chute being provided on said needle valve, said slider being provided on said movable lever, said slider being slidably coupled to said chute.

4. The ink jet head assembly of claim 3, wherein said chute is arcuate.

5. The ink jet head assembly of claim 1, wherein said resilient member is provided as a spring.

6. The ink jet head assembly of claim 3, wherein said needle valve is provided with a vertical surface, said runner being provided in said vertical surface.

7. The ink jet head assembly of claim 1, wherein said movable lever is driven in motion by a cylinder.

8. The ink jet head assembly of claim 1, wherein a seal ring is provided at said nozzle, said conical portion being inserted into said seal ring.

9. The ink ejection head assembly of claim 1, wherein the ejection head body includes a first housing and a second housing, the first housing and the second housing forming the cavity therebetween, the first housing and the second housing being threadably coupled.