阅读说明：本技术 打印机供墨装置及供墨方法 (Printer ink supply device and ink supply method ) 是由 梅连军 王文红 于 2020-07-24 设计创作，主要内容包括：本发明公开了打印机供墨装置及供墨方法,其中,打印机供墨装置包括：喷头部件,喷头部件设有若干喷墨孔,用于向打印载体输出打印墨水；喷头部件设有进墨口；墨水仓,墨水仓设有用于存储墨水的内腔；墨水仓设有连通内腔的出墨口,出墨口用于向喷头部件供给打印墨水；在相同参考系中,出墨口所处的位置高度大于喷头部件所处的位置高度；输墨管路,设于出墨口与进墨口之间,用于将内腔中的墨水输送到喷头部件；压缩弹簧,其底端安装在相同参考系中固定的支撑部件上,压缩弹簧的顶端支撑连接所述墨水仓,以使墨水仓能浮动；输墨管路包括柔性管,压缩弹簧伸缩时,柔性管被拉扯或产生弯曲。本发明具有结构简单,成本低,稳定性好的优点。(The invention discloses a printer ink supply device and an ink supply method, wherein the printer ink supply device comprises: the nozzle component is provided with a plurality of ink jetting holes and is used for outputting printing ink to the printing carrier; the nozzle part is provided with an ink inlet; the ink tank is provided with an inner cavity for storing ink; the ink bin is provided with an ink outlet communicated with the inner cavity, and the ink outlet is used for supplying printing ink to the nozzle component; in the same reference system, the height of the ink outlet is greater than that of the nozzle component; the ink conveying pipeline is arranged between the ink outlet and the ink inlet and is used for conveying the ink in the inner cavity to the nozzle component; the bottom end of the compression spring is arranged on a supporting component fixed in the same reference system, and the top end of the compression spring is connected with the ink bin in a supporting mode so that the ink bin can float; the inking pipeline comprises a flexible pipe, and when the compression spring stretches, the flexible pipe is pulled or bent. The invention has the advantages of simple structure, low cost and good stability.)

1. An ink supply device for a printer, comprising:

the nozzle component is provided with a plurality of ink jetting holes and is used for outputting printing ink to the printing carrier; the nozzle component is provided with an ink inlet;

the ink cartridge is provided with an inner cavity for storing ink; the ink chamber is provided with an ink outlet communicated with the inner cavity, and the ink outlet is used for supplying printing ink to the nozzle component; in the same reference system, the ink outlet is higher than the head part;

the ink conveying pipeline is arranged between the ink outlet and the ink inlet and is used for conveying the ink in the inner cavity to the nozzle component;

a compression spring, the bottom end of which is mounted on a supporting component fixed in the same reference system, and the top end of the compression spring is in supporting connection with the ink cartridge so as to enable the ink cartridge to float;

the ink conveying pipeline comprises a flexible pipe, and when the compression spring stretches, the flexible pipe is pulled or bent.

2. The ink supply device for a printer according to claim 1, wherein an ink supply port communicating with said inner chamber is provided on said ink tank, said ink supply port being adapted to supply ink to said inner chamber; or, the ink bin is provided with an ink supply pipe communicated with the inner cavity, and the ink supply pipe is used for supplying ink to the inner cavity.

3. A printer ink supply as in claim 1, wherein the ink cartridge has a first air port communicating the chamber with atmospheric pressure.

4. A printer ink supply as in claim 1, wherein said nozzle member has a second port communicating atmospheric pressure.

5. The printer ink supply of claim 1, wherein said ink reservoir has a float sensor for sending an alarm message when ink in said ink reservoir exceeds an alarm level.

6. A printer ink supply according to any one of claims 1 to 5, characterised in that the ink reservoirs are sectioned at different heights, normal to the direction of gravity in the same reference system, with equal cross-sectional areas.

7. A printer ink supply device as claimed in any one of claims 1 to 5, in which the internal chamber of the cartridge is any one of cylindrical, elliptical, square and prismatic.

8. The printer ink supply of claim 1, wherein said compression spring is made of a metal material.

9. The printer ink supply device according to claim 1, wherein the flexible tube is any one of a rubber tube, a silicone tube, a PVC hose, and a PU hose.

10. An ink supply method applied to the ink supply device of the printer as claimed in any one of claims 1 to 9, the ink supply method comprising selecting a compression spring and installing the compression spring below an ink tank by using a formula K ═ pgs, wherein K represents an elastic coefficient of the compression spring, ρ represents a density of ink, and s represents a cross-sectional area of an inner cavity of the ink tank.

Technical Field

The invention relates to the field of printing equipment, in particular to an ink supply device and an ink supply method for a printer.

Background

Printing devices are common products, and people are familiar with more civil small-sized printing devices, however, in the industrial field, large-sized printing devices are needed to meet the requirement of printing on larger-sized materials, such as printing patterns on cloth and manufacturing clothes, curtains, bed sheets and the like.

The industrial printing equipment is different from the common small-sized civil printing equipment, and the industrial printing equipment is large in volume and high in production cost. In the printing operation of industrial manufacture, the printing intensity is high, and the operation time is long, so that a continuous ink supply system is generally provided to ensure that the ink is not interrupted. In order to solve this problem, in the prior art, an ink tank is provided, which can store and supply ink to the printing head. In the printing operation of industrial manufacture, the gravitational potential energy is generally adopted to enable the ink to flow from a high position to a low position, the larger the fall is, the larger the ink pressure applied to the printing head is, and actually, the requirement is made on the ink pressure, but the larger the pressure is, the better the pressure is, or the smaller the pressure is, the better the pressure is, so that a problem exists, how to ensure that a relatively constant ink pressure can be provided, and the amount of the ink sprayed by the printing nozzle in unit time is appropriate.

For this reason, the present invention has been developed in view of such a background.

Disclosure of Invention

The invention aims to solve the technical problems in the prior art, and provides an ink supply device of a printer and an ink supply method.

In order to realize the purpose of the invention, the technical scheme is as follows:

an ink supply for a printer, comprising: the nozzle component is provided with a plurality of ink jetting holes and is used for outputting printing ink to the printing carrier; the nozzle component is provided with an ink inlet; the ink cartridge is provided with an inner cavity for storing ink; the ink chamber is provided with an ink outlet communicated with the inner cavity, and the ink outlet is used for supplying printing ink to the nozzle component; in the same reference system, the ink outlet is higher than the head part; the ink conveying pipeline is arranged between the ink outlet and the ink inlet and is used for conveying the ink in the inner cavity to the nozzle component; a compression spring, the bottom end of which is mounted on a supporting component fixed in the same reference system, and the top end of the compression spring is in supporting connection with the ink cartridge so as to enable the ink cartridge to float; the ink conveying pipeline comprises a flexible pipe, and when the compression spring stretches, the flexible pipe is pulled or bent.

Preferably, the ink chamber is provided with an ink supply port communicated with the inner cavity, and the ink supply port is used for supplying ink to the inner cavity.

Preferably, the ink chamber is provided with an ink supply tube communicated with the inner cavity, and the ink supply tube is used for supplying ink to the inner cavity.

Preferably, the ink chamber is provided with a first air port for communicating the inner chamber with atmospheric pressure.

Preferably, the nozzle member is provided with a second air port communicating with atmospheric pressure.

Preferably, the ink tank is provided with a float sensor, and the float sensor is used for sending alarm information when the ink in the ink tank exceeds the warning liquid level.

Preferably, the ink tanks are sectioned at different heights in the same reference system along the normal direction of the gravity direction, and the sectional areas are equal.

Preferably, the inner cavity of the ink cartridge is any one of a cylinder, an elliptic cylinder, a square cylinder and a prism.

Preferably, the compression spring is made of a metal material.

Preferably, the flexible pipe is any one of a rubber pipe, a silicone tube, a PVC hose and a PU hose.

The beneficial effect of the invention is that, by providing a printer ink supply device, it includes: the nozzle component is provided with a plurality of ink jetting holes and is used for outputting printing ink to the printing carrier; the nozzle component is provided with an ink inlet; the ink cartridge is provided with an inner cavity for storing ink; the ink chamber is provided with an ink outlet communicated with the inner cavity, and the ink outlet is used for supplying printing ink to the nozzle component; in the same reference system, the ink outlet is higher than the head part; the ink conveying pipeline is arranged between the ink outlet and the ink inlet and is used for conveying the ink in the inner cavity to the nozzle component; a compression spring, the bottom end of which is mounted on a supporting component fixed in the same reference system, and the top end of the compression spring is in supporting connection with the ink cartridge so as to enable the ink cartridge to float; the ink conveying pipeline comprises a flexible pipe, and when the compression spring stretches, the flexible pipe is pulled or bent. The whole ink bin becomes a floating component by utilizing the expansion characteristic of the compression spring, the liquid level height in the ink bin is ensured to be in a constant position, because when the ink in the ink bin is lower than the preset position, the ink is reduced, the pressure applied to the spring is reduced, and the spring extends to jack the ink bin to a certain height, otherwise, when the ink in the ink bin is higher than the preset position, the ink is increased, the pressure applied to the spring is increased, and the spring is compressed to enable the whole ink bin to fall back, namely, as long as the elastic coefficient of the spring is proper, the expansion amount of the spring is matched with the variation of the liquid level height of the ink in the ink bin under the change of stress condition, the real-time liquid level height compensation is realized, the height difference between the liquid level of the ink in the ink bin and the printing nozzle is ensured to deal with the preset value in real time, and the ink pressure of the printing nozzle is further ensured to, the printing stability is improved, the printing effect can be guaranteed, the service life of a product is favorably prolonged, and on the other hand, the printing mechanism is simple in structure and greatly reduces the manufacturing cost.

In another aspect, the present invention provides an ink supply method applied to the ink supply apparatus of the printer described in any one of the preceding claims, the ink supply method including selecting a compression spring by using a formula K ═ ρ gs and installing the compression spring under an ink tank, where K represents an elastic coefficient of the compression spring, ρ represents a density of ink, and s represents a cross-sectional area of an inner cavity of the ink tank.

Because this scheme is applied to aforementioned printer ink supply unit, consequently, possess aforementioned beneficial effect equally.

Drawings

The invention is further described below with reference to the accompanying drawings.

FIG. 1 is a schematic perspective view of an ink supply device for a printer according to the present invention.

FIG. 2 is a schematic perspective view of a print head in an ink supply device of a printer according to the present invention.

FIG. 3 is a schematic diagram of the ink supply principle of the ink supply device of the printer according to the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through the communication between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1-3, there is shown a printer ink supply 100 comprising: the head part 10, which is provided with a plurality of ink jetting holes 101, is used to output printing ink to the printing carrier, and the required characters or patterns can be made on the printing carrier by the relative movement of the head part during printing. It should be noted that the printing carrier mentioned herein refers to materials to be printed, such as printing paper, printing cloth, etc., software or program required for printing, and control of movement of printing components, etc., which are prior art in the field, and are not innovative of the present invention, and will not be described in detail herein. In the present invention, the head member 10 is provided with an ink inlet 102; it is understood that the ink inlet 102 may be a separately provided pipe connection or an ink inlet end integrally formed with the head unit, so that ink can enter the ink chamber described below through the ink inlet.

The ink cartridge 20, the ink cartridge 20 is provided with an inner cavity 201 for storing ink; the ink chamber 20 is provided with an ink outlet 202 communicated with the inner cavity 201, and the ink outlet 202 is used for supplying printing ink to the head component 10; similarly, the ink outlet 202 may be a separately disposed conduit port or an ink inlet port integrally formed with the ink cartridge, so that the ink in the ink cartridge 20 can be delivered to the head unit through the ink outlet 202. Specifically, an ink conveying pipeline is arranged between the ink outlet and the ink inlet; in a preferred embodiment, the connection between the ink cartridge and the head member is made by a removable flexible tube 40, the reason for which flexible tube 40 is used being further described below.

In the same reference system, the height of the ink outlet 202 is greater than the height of the head member 10, so that a drop in the direction of gravity is generated between the ink tank and the head member, and the ink can be transferred by using gravitational potential energy.

The invention also comprises a compression spring 50, the bottom end of which is mounted on the support member 30 fixed in said same reference frame. Specifically, in a preferred embodiment, the supporting member 30 is a U-shaped supporting block, two flanges of the U-shaped supporting block extending upwards serve as shielding to protect the compression spring, a through hole 301 is formed at the bottom of the U-shaped supporting block, and the flexible tube 40 passes through the through hole 301, so that the bottom end of the compression spring 50 abuts against the U-shaped supporting block, and the top end of the compression spring 50 abuts against and supports the ink cartridge 20, so that the ink cartridge 20 can float. In a preferred embodiment, the compression spring is made of a metal material.

In the present invention, the inking tube includes a flexible tube 40, and the flexible tube 40 has a sufficient length, so that when the compression spring 50 expands and contracts, the flexible tube 40 is pulled or bent. The reason why the flexible tube 40 is provided is that the head unit 10 is not displaced in the height direction, but the ink cartridge 20 is supported by the compression spring 50, so that the ink cartridge 20 itself is floated, and the ink cartridge 20 is displaced in the height direction, so that the length and flexibility are characteristics of the ink supply line. It should be understood that the ink feed tube between the ink cartridge 20 and the head unit 10 may be a single tube or a plurality of tubes connected to each other, so long as a flexible section is secured therein and can be bent or pulled within a certain range. Preferably, the flexible pipe is any one of a rubber pipe, a silicone tube, a PVC hose and a PU hose.

In one embodiment, the ink chamber 20 is provided with an ink supply port 60 communicating with the inner cavity, and the ink supply port 60 is used for replenishing ink to the inner cavity. Thus, during use, the ink cartridge is in a state of being discharged while being charged with ink. Also, it will be appreciated that ink supply port 60 may be a separate conduit connection to which ink may be replenished by connecting an ink supply tube (not shown). Ink supply port 60 may also be an ink input integrally formed with the ink cartridge.

In the present invention, the ink chamber 20 is provided with a first air port 203 for communicating the internal cavity with atmospheric pressure, and the head member 10 is provided with a second air port 103 for communicating atmospheric pressure. The purpose of the first air port 203 is to ensure the smoothness of the ink conveying pipeline and prevent ink from being difficult to flow due to negative pressure; the purpose of the second air port 103 is, on the one hand, to ensure the smoothness of the ink supply line and, on the other hand, to facilitate the discharge of ink bubbles in the head unit.

Although the present invention can achieve stable liquid level by using the compression spring, it can be satisfied only under certain conditions that if the pipeline is blocked due to system failure or the ink entering the ink tank is difficult to control, and exceeds the adjustable range of the compression spring, the ink in the ink tank will rise all the time and even be discharged from the first air port 203, which is obviously undesirable. Therefore, the present invention is further provided with an alarm device, and specifically, a float sensor 70 is disposed on the ink cartridge 20, and the float sensor 70 is used for sending alarm information when the ink in the ink cartridge 20 exceeds an alarm liquid level. In the printing system, when the water level warning information transmitted from the float sensor 70 is received, an alarm signal may be generated by means of light or sound.

In the invention, the ink chambers are sectioned at different heights along the normal direction of the gravity direction in the same reference system, and the sectional areas are equal. For example, the inner cavity of the ink cartridge is any one of a cylindrical shape, an elliptic cylindrical shape, a square cylindrical shape, and a prismatic shape.

Referring to fig. 3, in the ink cartridge 20, the height difference between the liquid level surface and the ink ejection hole 101 is H1, the height difference between the bottom of the support member 30 and the ink ejection hole 101 is H3, the height difference between the liquid level surface and the bottom of the support member 30 is H2, it is desirable that the value of H1 is constant, or the deviation from the ideal value of H1 is negligible, so that the value of H1 can be regarded as a fixed value, the value of H3 is a fixed value, and H1 is H2+ H3, so it is necessary to ensure that the value of H2 is constant or the deviation is negligible, the size of H2 is determined by the length of the compression spring 50 and the ink depth, and the value of H2 can be kept constant or the deviation can be negligible only when the deformation amount of the compression spring and the liquid level change are mutually offset. The amount of deformation of the compression spring is caused by the liquid level change, assuming that the liquid level height change is Δ h, whereby the gravity G ═ ρ gS Δ h by which the ink increases or decreases,

the calculation formula of the pressure elastic force is F ═ K Δ h, so that K Δ h ═ ρ gS Δ h, that is, K ═ ρ gS, where K represents the elastic coefficient of the compression spring, ρ represents the density of the ink, and s represents the cross-sectional area of the inner cavity of the ink tank.

Therefore, the height difference generated by liquid level change can be counteracted by using the deformation quantity of the spring only by calculating the elastic coefficient of the spring, so that the aim of constantly keeping the liquid level at the preset position is fulfilled.

The invention utilizes the expansion characteristic of the compression spring to enable the whole ink tank to be a floating component and ensure that the liquid level height in the ink tank is in a constant position, because when the ink in the ink tank is lower than the preset position, the ink is reduced, the pressure applied to the spring is reduced, the spring is extended to jack the ink tank to a certain height, otherwise, when the ink in the ink tank is higher than the preset position, the ink is increased, the pressure applied to the spring is increased, the spring is compressed to enable the whole ink tank to fall back, namely, as long as the elastic coefficient of the spring is proper, the expansion amount of the spring under the change of stress condition can be matched with the ink liquid level height variation in the ink tank, the real-time liquid level height compensation is realized, the drop height between the ink liquid level in the ink tank and the printing nozzle is ensured to deal with the preset value in real time, and the ink pressure of the printing nozzle is further ensured to be constant, the printing stability is improved, the printing effect can be guaranteed, the service life of a product is favorably prolonged, and on the other hand, the printing mechanism is simple in structure and greatly reduces the manufacturing cost.

The invention also provides an ink supply method which is applied to the printer ink supply device, wherein the ink supply method comprises the step of selecting a compression spring by using the formula K-rhogs and installing the compression spring below an ink bin.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is a more detailed description of the present invention that is presented in conjunction with specific embodiments, and the practice of the invention is not to be considered limited to those descriptions. It will be apparent to those skilled in the art that a number of simple derivations or substitutions can be made without departing from the inventive concept.