CN210591043U - Ink supply exhaust device - Google Patents

Abstract

The utility model discloses an ink supply exhaust device, which comprises a box body and an exhaust unit arranged in the box body, wherein the top of the box body is provided with a needle head, one end of the exhaust unit is connected with the needle head, the other end of the exhaust unit is connected with a printing nozzle, and ink flows to the printing nozzle through the needle head and the exhaust unit; the continuous supply of ink is realized, bubbles in the ink are discharged in the ink conveying process, the bubbles are prevented from flowing to the printing nozzle, and the printing effect is improved; the air exhausting unit is used for forming a buffering effect, after the ink enters the air exhausting unit, if bubbles exist in the ink, when the ink enters the air exhausting unit and flows to the bottom of the air exhausting unit, the air in the ink floats to an air cavity of the air exhausting unit, and the air exhausting process is realized; the exhaust can also be monitored through the observation window and the exhaust unit, so that the ink can be smoothly exhausted. Meanwhile, a plurality of conveying units are designed on the basis of a single exhaust process, so that the exhaust device is suitable for a multi-color continuous supply system, and the application range is wider.

Description

Ink supply exhaust device

Technical Field

The utility model relates to an inkjet printing technology field, more specifically relates to an ink supply exhaust apparatus.

Background

The ink-jet printing device is modern common printing equipment, ink is generally adopted as printing raw materials, the ink flows to a nozzle through an ink supply pipeline, and the nozzle prints patterns by the ink; in the process of printing by the ink jet printing device, the quality and the type of ink have obvious influence on the printing effect. In the prior art, more ink-jet printing devices adopt common water-based ink, and the ink can generate more small bubbles along with the increase of the using time or the placing time; when the small bubbles flow to the printing nozzle along with ink, the printing effect is remarkably reduced; when the amount of accumulated air bubbles is too large, the print head may not even print.

SUMMERY OF THE UTILITY MODEL

The utility model discloses it is not enough to aim at overcoming above-mentioned prior art at least, provides an ink supply exhaust apparatus, carries the ink in the ink source and eliminates the bubble in the ink.

The utility model provides a technical scheme be, an supply black exhaust apparatus, include the box and set up the exhaust unit in the box, the top of box is equipped with the syringe needle, the syringe needle is connected to the one end of exhaust unit, and the other end is connected to and prints the shower nozzle, and the shower nozzle is printed in the ink through syringe needle, exhaust unit flow direction. The box body provides an independent space for the air exhaust process of the ink, avoids interference of other factors, and provides installation positions and spaces of other components; the needle punctures the ink source, the ink source is an ink bag or an ink box, and the installation operation of the ink source can be simplified by arranging the needle, so that the ink source can be inserted and pulled out and replaced in real time; ink in the ink source flows to the needle head and is conveyed to the exhaust unit connected with the needle head, after the ink flows to the exhaust unit, the ink is accumulated at the bottom of the exhaust unit, a water level is generated in the exhaust unit, an air cavity is formed between the top of the exhaust unit and the liquid level of the exhaust unit, after a stable air cavity is formed, the ink entering the exhaust unit flows to an ink outlet of the exhaust unit through the air cavity, and meanwhile, the ink at the ink outlet of the exhaust unit flows to the printing nozzle; the air cavity inside the air exhaust unit keeps dynamic balance in the ink conveying process, the ink flows to the air exhaust unit through the needle head, and bubbles in the ink are transferred into the air cavity when entering the air exhaust unit or enter the bottom of the air exhaust unit and float to the air cavity. The buffer is arranged between the ink source and the spray head, so that the continuous conveying of the ink is realized, and air bubbles generated in the ink source or in the ink conveying process are removed.

The needle head and the exhaust unit form a conveying unit, the box body is provided with a plurality of conveying units, the plurality of conveying units can be connected with a plurality of spray heads or a single spray head, and when the plurality of conveying units are respectively connected with independent spray heads, ink supply and exhaust of a multi-color continuous supply system can be realized, so that the application range is expanded; and the conveying units are mutually independent, and part of the conveying units can be closed or opened in time in the using process, so that the automatic control device is suitable for controlling a printer with a plurality of spray heads and provides diversified control. When using monochromatic ink, a plurality of conveying units all connect when same shower nozzle promptly, and a plurality of conveying unit can realize the cascaded control to conveying speed, use the conveying unit of the most quantity and input the same ink, and then in same time span, the ink transport capacity is the biggest, can be applied to the application scene that needs quick printing. The plurality of conveying units are mutually independent, maintenance in the ink exhaust process is facilitated, targeted quick overhaul and repair are achieved, and time cost in industry is saved.

The exhaust unit is an exhaust bag which is a transparent bag; the exhaust bag has the characteristic of a bag-shaped body, can realize contraction and expansion in a certain pressure range, and has a variable space. In the exhaust process, because the bubble quantity that the ink produced is limited, even the exhaust pocket inflation also can not expand to the state that takes place to rupture, and under most use condition, the exhaust pocket is in slight inflation state, and the shared volume of exhaust pocket is less, can provide more spaces for the box, helps installing other subassemblies, and sufficient space helps the user to operate in the box. More importantly, because the air exhaust bag has plasticity, when the air exhaust bag is extruded, ink in the original air exhaust bag is quickly flowed to the spray head under the pressure, air in the air exhaust bag floats to the ink source and provides negative pressure to promote the ink flow of the ink source, and the operation mode can be applied to dredging the blocked spray head or improving the slow ink flow. Preferably, the exhaust bag is a transparent bag, the transparent bag can display the liquid level of the ink and the entering condition of the ink in the exhaust unit, the condition of the ink in the exhaust unit can be visually observed through the transparent bag, real-time monitoring and adjustment are carried out, and the smooth proceeding of the whole exhaust process is facilitated.

Preferably, the box body is provided with an observation window for observing the exhaust unit, the observation window is a partially hollow part of the box body or a transparent window on the box body, and a user can visually observe the internal ink flowing condition and the air bubble exhaust condition through the observation window to monitor the whole exhaust device; compared with the prior art, the observation window enables the flow path of the ink to be disclosed, and the real-time monitoring of the ink flow can be realized under the state that the printing equipment is not disassembled.

Preferably, the upper surface of the box body is provided with a plurality of ink source bearing boxes, the bottoms of the ink source bearing boxes are provided with through holes, and the needles penetrate through the through holes and are arranged at the bottoms of the bearing boxes; after the ink source is put into the bearing box, the ink source is punctured by the needle head and starts to convey ink, and the ink source is fixed on the bearing box; the bearing box can provide a box-shaped accommodating cavity for loading the ink source, and when the ink source is an ink box or an ink bag, the bearing box of the ink source can prevent the ink box or the ink bag from toppling over, so that the fixing of the ink source is facilitated. Meanwhile, the direct contact with the ink source in the use process is avoided, and the ink stain is prevented from being stained by a user in the use process.

Preferably, the both sides of through-hole are provided with the sand grip, the sand grip sets up on the bottom surface that the box was born to the ink source, the sand grip can assemble the ink that spills from the syringe needle edge at local area, avoids the ink to cover the bottom surface that whole ink source bore the box, has reduced the clean degree of difficulty that bears the box, has also avoided the waste of ink.

Preferably, the upper end of the exhaust unit is provided with an ink inlet, the lower end of the exhaust unit is provided with an ink outlet, the ink inlet of the exhaust unit is connected with the needle head, the ink outlet of the exhaust unit is connected with the printing nozzle, the upper end and the lower end of the exhaust unit are respectively provided with the ink inlet and the ink outlet, the flow direction of ink is limited from top to bottom, and the ink flows to the exhaust unit and the nozzle through the needle head, so that the optimal ink flow direction is realized. Preferably, the diameter of the ink inlet is increased from small to large, and the diameter of the ink outlet is decreased from large to small, so that the ink is promoted to flow into the exhaust unit, the flow rate of the ink entering the exhaust unit is reduced, the flow rate of the ink flowing to the printing nozzle is reduced, and the phenomenon that the flow rate is too high to generate bubbles at the downstream of the exhaust unit is avoided. Preferably, the components can be expanded at the ink inlet and the ink outlet, for example, valves are respectively arranged at the ink inlet and the ink outlet to realize accurate control of air exhaust, or filter screens are arranged at the ink inlet and the ink outlet to slow down the flow rate of ink and the like.

Preferably, an ink pump is further arranged between the ink outlet and the printing nozzle, and the ink pump can realize rapid ink supply and provide power for the ink to rapidly flow to the printing nozzle.

Preferably, an exhaust unit fixing support is arranged in the box body and comprises an upper baffle plate and a lower baffle plate, the upper baffle plate and the lower baffle plate are respectively provided with an ink inlet and an ink outlet mounting groove, and the exhaust unit is fixed on the exhaust unit fixing support. The ink inlet and the ink outlet are respectively arranged on the grooves of the upper baffle and the lower baffle, so that the transverse position of the exhaust unit can be ensured, namely the ink inlet and the ink outlet of the exhaust unit are fixed through the upper baffle and the lower baffle, the exhaust unit is fixed, and the exhaust unit is prevented from moving left and right or toppling left and right in the exhaust process; when the exhaust unit is tilted left and right, air in the exhaust unit may flow into the printing head, and therefore, the stability of the exhaust unit is important.

Preferably, a first pressing strip is arranged above the upper baffle, a second pressing strip is arranged below the lower baffle, fixing clamping pieces are arranged at the upper end and the lower end of the exhaust unit, the fixing clamping pieces at the upper end of the exhaust unit are fixed between the upper baffle and the first pressing strip, and the fixing clamping pieces at the lower end of the exhaust unit are fixed between the lower baffle and the second pressing strip. Through set up fixed card in the upper and lower end of exhaust unit, help maintaining the longitudinal position of exhaust unit, prevent that exhaust unit from gathering behind the ink and dragging the top pipeline to under the permanent user state, go into the china ink mouth and become loose, the outflow takes place for the ink. In addition, the upper end and the lower end are provided with the fixing clamping pieces and are fixed between the pressing strips and the baffle plates through the fixing clamping pieces, so that the relative independence of the pipeline and the exhaust unit can be realized, and the exhaust unit is prevented from moving along with the movement of the pipeline when the pipeline is adjusted or repaired.

Compared with the prior art, the beneficial effects of the utility model are that: continuous supply of ink is realized, bubbles in the ink are discharged in the ink conveying process of the ink source, the bubbles are prevented from flowing and converging to a printing nozzle, and the printing effect is improved; form the cushion chamber that ink flows through exhaust unit, ink is behind getting into exhaust unit, if there is the air in the ink, then when ink gets into exhaust unit, when flowing to exhaust unit bottom, inside air will get into exhaust unit's air cavity to will put or the bubble that ink flow produced is discharged for a long time because of the ink, avoid the bubble to get into to printing the shower nozzle. Meanwhile, a plurality of conveying units are designed on the basis of a single exhaust process, so that the exhaust device is suitable for a multi-color continuous supply system, the application range is wider, and the controllability is stronger. In the whole exhaust process, the bubble floating is realized by utilizing the principle that the gas density is smaller than that of ink, a stable exhaust space is maintained, continuous ink supply is guaranteed, the continuous ink supply process can be monitored through the observation window and the exhaust unit, smooth and sufficient ink exhaust can be guaranteed, and the maintenance operation of the ink supply and exhaust device is simplified.

Drawings

FIG. 1 is a schematic view of a closed state of a box body;

FIG. 2 is a schematic view (one) of the structure of the case;

FIG. 3 is an enlarged view of a portion of FIG. 2;

FIG. 4 is a schematic view (one) of the exhaust apparatus connected to the showerhead;

FIG. 5 is a schematic view (II) of the structure of the case;

FIG. 6 is a schematic view (two) of the exhaust apparatus connected to the showerhead;

FIG. 7 is a schematic view (III) of the structure of the case;

FIG. 8 is a partial enlarged view of FIG. 7 (one);

FIG. 9 is a partial enlarged view (II) of FIG. 7;

FIG. 10 is a partial enlarged view (III) of FIG. 7;

FIG. 11 is a perspective view of the case;

FIG. 12 is a schematic exhaust diagram of the exhaust unit.

Detailed Description

The drawings of the present invention are for illustration purposes only and are not to be construed as limiting the invention. For a better understanding of the following embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Examples

As shown in fig. 1 and 4, an ink supply and exhaust device comprises a box body 1 and an exhaust unit 2 arranged in the box body; as shown in fig. 2 and 3, a needle 11 is provided at the top of the box body 1, as shown in fig. 8, fig. 8 is a partial enlarged view of fig. 7, an ink inlet 21 is provided at the upper end of the exhaust unit, an ink outlet 22 is provided at the lower end of the exhaust unit, and the ink inlet 21 of the exhaust unit is connected with the needle 11; as shown in fig. 4, fig. 4 shows only the connection relationship, and the ink outlet 22 of the air discharging unit is connected to the printing head 3. The ink flows to the printing nozzle 3 through the needle 11 and the exhaust unit 2; in this embodiment, an ink pump 4 is further disposed between the ink outlet 22 and the print head 3, and the ink reaches the print head 3 through the needle 11, the exhaust unit 2, and the ink pump 4.

In this embodiment, the needle 11 and the exhaust unit 2 form a conveying unit 5, and a plurality of conveying units are arranged in the box body 1.

The gas discharge unit 2 in this embodiment is a transparent bag.

As shown in fig. 1, the box 1 is further provided with an observation window 12 for observing the exhaust unit, and the observation window 12 is a transparent window on the box.

As shown in fig. 2 and 3, a plurality of ink source bearing boxes 13 are arranged on the upper surface of the box body 1, through holes are arranged at the bottoms of the ink source bearing boxes 13, and the needles 11 are arranged at the bottoms of the bearing boxes 13 through the through holes; convex strips 131 are arranged on two sides of the through hole, and the convex strips 131 are arranged on the bottom surface of the ink source bearing box 13. As shown in fig. 5, the ink source 6 is placed on the carrying box 13, the ink source 6 in this embodiment is an ink box, when the needle 11 is not inserted deeply, it is easy to topple when shaking occurs, and the carrying box 13 helps to fix the ink box; the ribs 131 help to level the ink supply when the ink supply 6 is placed in the ink supply carrying case 13. After the ink supply 6 is placed in the ink supply carrying case 13, the needle 11 at the bottom of the ink supply carrying case 13 pierces the ink supply, and the ink enters the needle 11 and is transferred to the subsequent feed assembly.

As shown in fig. 6, 7 and 9, an exhaust unit fixing support 7 is arranged in the box body, the exhaust unit fixing support 7 includes an upper baffle 71 and a lower baffle 72, the upper baffle 71 and the lower baffle 72 are respectively provided with an ink inlet mounting groove and an ink outlet mounting groove, and the exhaust unit 2 is fixed on the exhaust unit fixing support 7; a first pressing strip 73 is arranged above the upper baffle 71, a second pressing strip 74 is arranged below the lower baffle 72, fixing clamping pieces 23 are arranged at the upper end and the lower end of the exhaust unit, as shown in fig. 10, the fixing clamping pieces at the upper end of the exhaust unit are fixed between the upper baffle 71 and the first pressing strip 73, and the fixing clamping pieces at the lower end of the exhaust unit are fixed between the lower baffle 72 and the second pressing strip 74.

The working principle is as follows: after the ink supply 6 is placed in the carriage 13, the carriage 13 holds the ink supply 6 so as not to tilt right and left, and at the same time, the needle 11 penetrating through the through hole punctures the ink source 6, the ink of the ink source 6 flows to the needle 11, the needle 11 conveys the ink to the ink inlet 21 of the exhaust unit 2 through a pipeline, the ink enters the exhaust unit 2 through the ink inlet 21, as shown in fig. 12, the air chamber is preset in the air discharging unit, the ink entering from the ink inlet 21 enters the temporary ink collection under the air chamber through the air chamber, the air bubbles in the ink float up to the air chamber, when the ink inlet 21 continuously feeds ink and the temporarily collected ink continuously passes through the ink outlet 22, the air chamber in the air exhaust unit and the temporarily collected ink keep pressure balance, namely, the ink entering the air exhaust unit in the ink supply process enters the ink pump 4 and enters the spray head 3 after being exhausted, so that bubbles in the ink are removed in the continuous ink supply process. The initial equilibrium state can be established in a number of ways, with the present embodiment using an on/off ink pump 4 to achieve a preset air chamber and temporary pooling of ink.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the technical solutions of the present invention, and are not limitations to the specific embodiments of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides an supply black exhaust apparatus, its characterized in that includes the box and sets up the exhaust unit in the box, the top of box is equipped with the syringe needle, the syringe needle is connected to the one end of exhaust unit, and the other end is connected to and prints the shower nozzle, and the shower nozzle is printed to the ink through syringe needle, exhaust unit flow direction.

2. The ink supply and exhaust device as claimed in claim 1, wherein the needle and the exhaust unit form a delivery unit, and the housing is provided with a plurality of delivery units.

3. An ink supply and exhaust device as claimed in claim 1, wherein said exhaust unit is an exhaust bag, and said exhaust bag is a transparent bag.

4. The ink supply exhaust device according to claim 1, wherein the box body is provided with an observation window for observing the exhaust unit, and the observation window is a partially hollow part of the box body or a transparent window on the box body.

5. An ink supply and exhaust device as claimed in claim 1, wherein the upper surface of the housing is provided with a plurality of ink supply carrying cases, the ink supply carrying cases are provided with through holes at the bottoms thereof, and the needles are arranged at the bottoms of the carrying cases through the through holes.

6. An ink supply and exhaust device as claimed in claim 5, wherein said through hole is provided with ribs on both sides thereof, said ribs being provided on the bottom surface of the ink supply carrying case.

7. An ink supply and exhaust device as claimed in claim 1, wherein the exhaust unit has an ink inlet at its upper end and an ink outlet at its lower end, the ink inlet of the exhaust unit is connected to the needle, and the ink outlet of the exhaust unit is connected to the print head.

8. An ink supply and exhaust device as claimed in claim 7, wherein an ink pump is provided between the ink outlet and the print head.

9. An ink supply and exhaust device according to claim 7 or 8, wherein an exhaust unit fixing bracket is arranged in the box body, the exhaust unit fixing bracket comprises an upper baffle plate and a lower baffle plate, the upper baffle plate and the lower baffle plate are respectively provided with an ink inlet and an ink outlet mounting groove, and the exhaust unit is fixed on the exhaust unit fixing bracket.

10. An ink supply and exhaust device as claimed in claim 9, wherein a first bead is provided above the upper baffle, a second bead is provided below the lower baffle, fixing clips are provided at both the upper and lower ends of the exhaust unit, the fixing clip at the upper end of the exhaust unit is fixed between the upper baffle and the first bead, and the fixing clip at the lower end of the exhaust unit is fixed between the lower baffle and the second bead.

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