CN213261656U

CN213261656U - Printing head capable of absorbing ink regionally

Info

Publication number: CN213261656U
Application number: CN202021589317.0U
Authority: CN
Inventors: 肖德基
Original assignee: Guangzhou Aifa Electronics Co ltd
Current assignee: Guangzhou Aifa Electronics Co ltd
Priority date: 2020-08-04
Filing date: 2020-08-04
Publication date: 2021-05-25
Anticipated expiration: 2030-08-04

Abstract

The utility model provides a but printer head is beaten to regional blotting belongs to printer technical field. The printing head is provided with a negative pressure cavity, the printing head is connected with a fixed seat, the fixed seat is provided with a plurality of ink jetting holes, and a sealing ring is connected between each ink jetting hole and the negative pressure cavity of the printing head. This printer head can make the downthehole negative pressure state that keeps always of ink jet, guarantees that every ink jet all receives even negative pressure difference, and each ink jet can all be even the blotting, avoids the ink jet to block up, makes the smooth work of printer head.

Description

Printing head capable of absorbing ink regionally

Technical Field

The utility model belongs to the technical field of printer equipment, a but printer head is beaten to regional blotting is related to.

Background

At present, a printing head used by a printer on the market is intermittent in ink due to various reasons, and cannot be effectively supplemented into the printing head. In order to solve the problem, the invention provides an ink absorber of a printing head, which has the working principle that: the whole print head is covered by an ink absorber and then the purpose of sucking out the ink in the print head is achieved by creating an internal negative pressure.

However, in the print head of the prior art, the ink absorber has some defects, such as the fact that the ink absorption with large negative pressure cannot be realized, otherwise the print head is easily damaged, and in addition, the ink absorption is not uniform for a long time, so that the ink jet hole is easily blocked, and the print head cannot work.

Disclosure of Invention

The utility model discloses to the above-mentioned problem that prior art exists, provide a but printer head is beaten of regional blotting, the utility model aims to solve the technical problem be: how to make the ink jetting hole absorb ink uniformly.

The purpose of the utility model can be realized by the following technical proposal:

the printing head capable of absorbing ink regionally is provided with a negative pressure cavity and is characterized in that a fixing seat is connected onto the printing head, a plurality of ink jetting holes are formed in the fixing seat, and a sealing ring is connected between each ink jetting hole and the negative pressure cavity of the printing head.

The working principle is as follows: when the ink jet printing head is used, the printing head is connected to the ink box, the negative pressure cavity forms negative pressure through the ink absorber, ink enters the interior of the printing head from the upper side of the printing head and is sucked out by the negative pressure, in the process, the sealing ring between the ink jet hole and the negative pressure cavity of the printing head plays a good sealing role, the negative pressure state is always kept in the ink jet hole, and each ink jet hole is guaranteed to be subjected to uniform negative pressure difference, so that the ink jet hole can absorb ink uniformly, the ink jet hole is prevented from being blocked, and the printing head can work smoothly.

In the printing head capable of absorbing ink regionally, the lower part of the sealing ring is connected to the inner wall of the corresponding ink jetting hole, and the upper part of the sealing ring is connected to the inner wall of the negative pressure cavity of the printing head. In the structure, the negative pressure cavity of the printing head is hermetically connected with the ink jetting hole on the fixed seat, so that good sealing performance between the negative pressure cavity and the ink jetting hole is ensured, and a stable negative pressure state is kept in the ink jetting hole.

In the printing head capable of absorbing ink regionally, the sealing ring is an elastic rubber ring, the sealing ring is in a compressed state, and the outer side surface of the sealing ring is attached to the inner wall of the corresponding ink jetting hole. In this structure, the rubber circle that is in the compression and changes the state carries out the elasticity to compress tightly the inner wall in ink jet hole, can further improve the leakproofness, thereby the ink absorption that can be stable of stable negative pressure has in the messenger ink jet hole.

In the printing head capable of absorbing ink regionally, the ink jetting hole comprises a small hole section and a large hole section which are circular, the small hole section is positioned above the large hole section, a connecting section is arranged at the joint of the small hole section and the large hole section, and the inner diameter of the connecting section is gradually increased from top to bottom. The jet orifice adopts the structure that aperture section and macropore section combine, than whole all be the structure of macropore, the inside volume of jet orifice is littleer, under the unchangeable condition of the whole pressure that the printer head receives, the jet orifice reduces the back, the pressure of the regional contact surface in jet orifice inside is just bigger, the negative pressure of blotting is just bigger, the conduction effect of the downthehole suction area of jet orifice is also stronger, the macropore section is located the below, can make the ink jet output bigger again, set up the linkage segment of crescent between aperture section and the macropore section, when making the ink flow into the macropore section from the aperture section, increase flow that can be gradual, rather than increase suddenly, fine assurance ink flow's smoothness nature again.

In the printing head capable of absorbing ink regionally, the bottom of the fixing seat is square, and the ink jetting holes are distributed on the fixing seat along the length direction of the fixing seat.

In the printing head capable of absorbing ink regionally, the bottom of the printing head and the top of the fixed seat are both planar, and the bottom of the printing head is attached to the top of the fixed seat.

Compared with the prior art, the utility model has the advantages as follows:

1. the printing head can keep a negative pressure state in the ink jet holes all the time, ensures that each ink jet hole is subjected to uniform negative pressure difference, can uniformly absorb ink, avoids the blockage of the ink jet holes and enables the printing head to work smoothly.

2. The internal volume of the ink jet hole is relatively small, and under the condition that the whole pressure borne by the printing head is unchanged, the pressure of the contact surface of the internal area of the ink jet hole is larger, the negative pressure for ink absorption is larger, and the conduction effect of the suction area in the ink jet hole is stronger.

Drawings

FIG. 1 is a schematic structural view of the present printhead;

fig. 2 is a cross-sectional view of the present printhead.

In the figure, 1, a fixed seat; 2. an ink-jetting orifice; 3. a seal ring; 4. a small pore section; 5. a macroporous section; 6. a connecting section; 7. an ink cartridge; 8. a printhead.

Detailed Description

The following are specific embodiments of the present invention, and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1-2, the printing head 8 has a negative pressure chamber, the printing head 8 is connected with a fixing base 1, the fixing base 1 is provided with a plurality of ink jetting holes 2, and a sealing ring 3 is connected between each ink jetting hole 2 and the negative pressure chamber of the printing head 8.

During the use, the printing head 8 is connected on the ink box 7, the negative pressure cavity forms negative pressure through the ink absorber, and the ink is sucked out by the negative pressure after entering the printing head 8 from the upper part of the printing head 8, in the process, the sealing ring 3 between the ink jet hole 2 and the negative pressure cavity of the printing head 8 plays a good sealing role, the negative pressure state is always kept in the ink jet hole 2, and each ink jet hole 2 is ensured to be subjected to uniform negative pressure difference, so that the ink jet hole 2 can absorb ink uniformly, the blockage of the ink jet hole 2 is avoided, and the printing head 8 works smoothly.

As shown in fig. 2, in the present embodiment, the lower portion of the seal 3 is connected to the inner wall of the corresponding ink ejection hole 2, and the upper portion of the seal 3 is connected to the inner wall of the negative pressure chamber of the print head 8. In the structure, the negative pressure cavity of the printing head 8 is hermetically connected with the ink jetting hole 2 on the fixed seat 1, so that good sealing performance between the negative pressure cavity and the ink jetting hole 2 is ensured, and a stable negative pressure state is kept in the ink jetting hole 2.

Preferably, the sealing ring 3 is a rubber ring with elasticity, the sealing ring 3 is in a compressed state, and the outer side surface of the sealing ring 3 is abutted against the inner wall of the corresponding ink jetting hole 2. In this structure, the rubber circle that is in the compression and changes the state carries out the elasticity to compress tightly the inner wall of jet orifice 2, can further improve the leakproofness, thereby makes the blotting that has stable negative pressure and can be stable in the jet orifice 2.

As shown in fig. 2, in the present embodiment, the inkjet hole 2 includes a small hole section 4 and a large hole section 5, both of which are circular, the small hole section 4 is located above the large hole section 5, and a connection section 6 is provided at a connection position of the small hole section and the large hole section, and an inner diameter of the connection section 6 is gradually increased from top to bottom. The structure that the small pore section 4 and the large pore section 5 are combined is adopted in the ink jetting hole 2, compared with the structure that the whole body is the large pore diameter, the internal volume of the ink jetting hole 2 is smaller, under the condition that the whole pressure applied to the printing head 8 is unchanged, the pressure of the contact surface of the internal area of the ink jetting hole 2 is larger after the ink jetting hole 2 is reduced, the negative pressure of ink absorption is larger, the conduction effect of the absorption area in the ink jetting hole 2 is stronger, the large pore section 5 is positioned below and can enable the ink ejection volume to be larger, and the gradually increased connecting section 6 is arranged between the small pore section 4 and the large pore section 5, so that when ink flows into the large pore section 5 from the small pore section 4, the flow can be gradually increased instead of being suddenly increased, and the smoothness of ink flow is well guaranteed.

As shown in fig. 1, in the present embodiment, the bottom of the fixing base 1 is square, and the ink-jetting holes 2 are distributed on the fixing base 1 along the length direction of the fixing base 1.

As shown in fig. 1, in this embodiment, the bottom of the print head 8 and the top of the fixing base 1 are both planar, and the bottom of the print head 8 abuts against the top of the fixing base 1.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a but printer head of regional blotting, it has the negative pressure chamber to beat printer head (8), its characterized in that, it is connected with fixing base (1) to beat printer head (8), a plurality of jet orifices (2) have been seted up on fixing base (1), are connected with sealing washer (3) between the negative pressure chamber that each jet orifice (2) and printer head (8).

2. An ink-regionally absorbable print head according to claim 1, wherein the lower portion of the packing (3) is attached to the inner wall of the corresponding ink ejection hole (2), and the upper portion of the packing (3) is attached to the inner wall of the negative pressure chamber of the print head (8).

3. An ink-receptive printing head according to claim 2, characterized in that the sealing ring (3) is a rubber ring with elasticity, the sealing ring (3) being in compression and the outer side of the sealing ring (3) abutting against the inner wall of the corresponding ink-ejecting opening (2).

4. An area-receptive printhead according to any of claims 1-3, characterized in that the ink-jetting orifice (2) comprises a small-orifice section (4) and a large-orifice section (5) both circular in shape, the small-orifice section (4) being located above the large-orifice section (5) and the junction of the two having a connecting section (6), the inner diameter of the connecting section (6) increasing from top to bottom.

5. An ink-receptive regionally marked printhead according to claim 1, characterized in that the bottom of the holder (1) is square and the ink-ejecting orifices (2) are distributed on the holder (1) along the length of the holder (1).

6. An ink-receptive, area-wise print head according to claim 1, characterized in that the bottom of the print head (8) and the top of the holder (1) are planar, and the bottom of the print head (8) abuts the top of the holder (1).