CN209904245U

CN209904245U - Ink feeding device and printing device

Info

Publication number: CN209904245U
Application number: CN201920261126.2U
Authority: CN
Inventors: 梁赟
Original assignee: Beijing Dream Ink Technology Co Ltd
Current assignee: Beijing Dream Ink Technology Co Ltd
Priority date: 2019-03-01
Filing date: 2019-03-01
Publication date: 2020-01-07
Anticipated expiration: 2029-03-01

Abstract

The utility model discloses a give black device and printing device mainly relates to lithography apparatus technical field. The ink supply device includes: the ink outlet roller, the bearing sleeved on the ink outlet roller and the inserting handle connected with the bearing are arranged on the ink outlet roller; install the play china ink roller fixing base of play ink roller, be provided with the slot that corresponds with the bearing shape on the play china ink roller fixing base, with but play the bearing constitution pluggable connection that the ink roller upper cover was established. The utility model discloses a design between ink roller and the fixing base to but plug and be connected, reduced the loading and unloading complexity of ink roller to further reduce the change degree of difficulty through installing the handle of the handheld application of force of being convenient for additional.

Description

Ink feeding device and printing device

Technical Field

The utility model belongs to the technical field of lithography apparatus, especially, relate to a give black device and printing device.

Background

Printing electronics is an emerging technology that applies traditional printing (or coating) processes to the manufacture of electronic components and products. Among them, electronic paste is one of the basic materials in the printed electronics industry.

At present, the electronic paste mainly comprises silver paste, aluminum paste, gold paste and copper paste, and is widely applied to a plurality of fields such as front and back electrodes of solar panels, RFID electronic tags, mobile phone antennas, non-contact IC card antenna lines and the like. However, the melting points of the metal components of the electronic paste are high, and after sintering, the conductive phase is still in particle contact, so that the contact resistance is high, the melting point of the low-melting-point metal is low, the conductivity is high, the low-melting-point metal can be in a liquid state at normal temperature and has good fluidity, and the conductive phase is in a continuous liquid state, so that the conductive ink made of the low-melting-point metal can replace the electronic paste and can be widely applied to the printing electronic industry.

The existing printing equipment has complex ink supply structure assembly, is inconvenient for the disassembly and the replacement of the ink roller, and often needs to disassemble most parts before the ink roller can be taken out.

SUMMERY OF THE UTILITY MODEL

In view of the above, an object of the present invention is to provide an ink supply device to solve the problem that the ink roller is not easy to be assembled and disassembled in the prior art.

In some illustrative embodiments, the ink supply apparatus includes: the ink outlet roller, the bearing sleeved on the ink outlet roller and the inserting handle connected with the bearing are arranged on the ink outlet roller; install the play china ink roller fixing base of play ink roller, be provided with the slot that corresponds with the bearing shape on the play china ink roller fixing base, with but play the bearing constitution pluggable connection that the ink roller upper cover was established.

In some optional embodiments, the ink supply device further includes: and the ink tank containing ink is assembled on the ink outlet roller fixing seat and is positioned below the ink outlet roller.

In some optional embodiments, the ink supply device further includes: be used for the filtering ink scraping roller of the printing ink conglomeration on the play inking roller, its assembly is in on the play inking roller fixing base, the laminating the tip in china ink pond and with form clearance fit between the play inking roller.

In some optional embodiments, the ink supply device further includes: the assembly is in go out the china ink pond mounting bracket on the ink roller millet fixing base, the china ink pond assembly is in on the china ink pond mounting bracket.

In some optional embodiments, an asymmetric ink feeding structure is formed between the ink outlet roller and the ink tank, and the ink tank accommodating groove is divided into a first groove surface and a second groove surface by an extension line of the diameter of the ink outlet roller in the vertical direction; wherein the horizontal length of the first groove surface is smaller than the radius of the ink outlet roller, and the horizontal length of the second groove surface is larger than the radius of the ink outlet roller.

In some optional embodiments, an ink leaking groove is arranged below the ink tank and fixed on the ink roller fixing seat.

In some optional embodiments, the ink supply device further includes: the sliding assemblies are connected with the two sides of the ink outlet roller fixing seat and arranged in a mirror image mode and used for driving the ink outlet roller to contact/separate from the inking roller; and assembling the bearing bracket of the sliding assembly.

In some alternative embodiments, the sliding assembly employs a cylinder control structure.

In some optional embodiments, the ink outlet roller fixing seat and the bearing are fixed through a bolt and a bolt.

Another object of the present invention is to provide a printing apparatus having any of the above ink supply devices.

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

the utility model discloses a design between ink roller and the fixing base to but plug and be connected, reduced the loading and unloading complexity of ink roller to further reduce the change degree of difficulty through installing the handle of the handheld application of force of being convenient for additional.

Drawings

Fig. 1 is a schematic structural diagram of an asymmetric ink supply structure in an embodiment of the present invention;

fig. 2 is a schematic structural view of an ink tank in an embodiment of the present invention;

fig. 3 is a schematic structural view of an ink tank in an embodiment of the present invention;

fig. 4 is a schematic structural diagram of an asymmetric ink supply structure in an embodiment of the present invention;

fig. 5 is a schematic structural diagram of an asymmetric ink supply structure in an embodiment of the present invention;

fig. 6 is a schematic structural view of a printed structure in an embodiment of the invention;

fig. 7 is an exploded view of the assembly of the ink supply device in an embodiment of the invention;

FIG. 8 is a cross-sectional side view of an ink feed device in an embodiment of the invention;

fig. 9 is a front view of an ink supply device in an embodiment of the invention.

Detailed Description

The following description and the drawings sufficiently illustrate specific embodiments of the invention to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of embodiments of the invention encompasses the full ambit of the claims, as well as all available equivalents of the claims. In this context, these embodiments of the invention may be referred to, individually or collectively, by the term "utility model" merely for convenience and without automatically limiting the scope of this application to any single utility model or utility model concept if more than one is in fact disclosed.

It should be noted that, in the present invention, the technical features may be combined with each other without conflict.

The embodiment of the utility model discloses an asymmetric ink feeding structure, as shown in fig. 1-2, fig. 1 is the structural schematic diagram of the asymmetric ink feeding structure in the embodiment of the utility model; fig. 2 is a schematic view of an ink tank structure in an embodiment of the present invention. The asymmetric ink feeding structure comprises an ink outlet roller 1 and an ink tank 2; the ink reservoir 2 is of an upper open structure, and specifically, the upper part of the ink reservoir 2 is provided with a groove surface 21 for accommodating the ink 3; the ink outlet roller 1 is located above the ink reservoir 2, opposite the upper groove surface 21 of the ink reservoir 2, and its surface is in contact with the ink 3 in the ink reservoir 2 and takes the ink 3 from the ink reservoir 2 by rotation. Wherein, the extension line D of the diameter of the ink outlet roller 1 in the vertical direction divides the groove surface 21 of the ink tank 2 into a first groove surface 21a and a second groove surface 21b, the length of the first groove surface 21a in the horizontal direction is designed to be smaller than the radius of the ink outlet roller 1, so that the ink outlet roller 1 reduces the influence of the ink tank 2 on the roller set contact space on one side of the first groove surface 21a, which is beneficial to reducing the ink supply distance; the length of the second groove surface 21b in the horizontal direction is designed to be larger than the radius of the ink discharging roller 1, so that the ink 3 on the ink discharging roller 1 can be prevented from leaking out of the ink reservoir 2 on the side of the second groove surface 21a, and the subsequent ink adding operation can be facilitated.

The embodiment of the utility model provides an asymmetric structure of giving black can be applied to conventional printing ink, electronic ink, the electrically conductive thick liquids of any printing usefulness, is particularly useful for the electrically conductive printing ink that the essential element is low melting point metal, and low melting point metal can refer to the melting point low melting point metal simple substance/low melting point metal alloy below 300 ℃. Such as elemental gallium, gallium-based alloys, bismuth-based alloys, and the like; preferably, a gallium-indium alloy, a gallium-indium-tin alloy, a bismuth-indium-tin alloy, or the like may be used in any ratio, specifically, a gallium-indium alloy, a gallium-indium-tin alloy, a bismuth-indium-tin alloy in a eutectic state, for example. The gallium-indium alloy and the gallium-indium-tin alloy can be in liquid state at normal temperature, so that the gallium-indium alloy and the gallium-indium-tin alloy can be used for printing in a normal temperature environment; the melting point of the bismuth-based alloy is slightly higher and can reach 50-120 ℃, and the bismuth-based alloy can be used for printing only by simply heating to form liquid.

As illustrated by the asymmetric inking arrangement provided in fig. 1-2, the inking roller 1 is designed to rotate clockwise, the first land 21a is located on the left side of the vertical diameter extension of the inking roller 1, the second land 21b is located on the right side of the vertical diameter extension of the inking roller 1, and the left side surface of the inking roller 1 is configured to contact the inking roller to achieve inking operation against the inking roller, and due to the miniaturized configuration of the left side of the ink reservoir 1 (i.e., at the location of the first land 21 a), the inking roller can be located at the lower left of the inking roller 1, and the inking distance below 1/4 circumference of the inking roller can be achieved by contacting the inking roller with the lower left 90 ° contour of the inking roller 1, which facilitates reducing the exposure time of ink to air from the inking stage in the entire printing system.

The utility model can effectively achieve the purpose of reducing/controlling the ink feeding distance by designing the asymmetric ink feeding structure, and meet the requirement of good printing quality of the ink; on the other hand, the design requirement of the miniaturized printing equipment with a more compact structure can be met.

Preferably, the length of the first groove surface 21a in the horizontal direction is designed to be greater than 1/4 of the radius of the ink discharging roller 1 and less than 1/2 of the radius of the ink discharging roller 1, so that the requirement of miniaturization of the asymmetric ink feeding structure can be met, and the ink discharging roller 1 can be ensured to have enough bottom surface to contact the ink in the ink tank 2, and the inking effect of the ink discharging roller 1 is ensured.

In some embodiments, the groove surface 21 of the ink reservoir 2 may be designed as a circular arc groove surface corresponding to the shape of the ink discharging roller 1, or as a corrugated groove surface, or a V-shaped groove surface. The arc groove surface and the corrugated groove surface are preferably designed, so that the ink dead angle of the ink tank 2 relative to the ink outlet roller 1 can be reduced, and the available ink amount of the ink tank 2 can be increased to the greatest extent.

As shown in fig. 3, which is an exemplary structure of a corrugated groove surface, the groove surface 21 has a trapezoidal structure with an upper flaring structure, and the groove surface 21 includes a bottom surface 211, and a first slope surface 212 and a second slope surface 213 which are respectively formed by extending from two sides of the bottom surface 211 to the outside in an obliquely upward direction; the first slope surface 212 and the second slope surface 213 form an obtuse angle larger than 90 degrees with the bottom surface 211 respectively, so that the ink collecting effect is achieved, the contact depth of the ink discharging roller 1 and the ink 3 can be increased simultaneously, and the usable amount of the ink 3 is increased. The first slope 212 is located at one side of the first groove surface 21a, and the second slope 213 is located at one side of the second groove surface 21 b.

For the ink with poor fluidity, for example, low-melting-point metal mixed with micro-nano metal particles, the requirement of controlling the fluidity of the ink can be met by mixing the metal particles, and corresponding characteristics can be given to the ink according to the functional properties of the added metal particles, wherein the metal particles are micro-nano copper powder, iron powder, nickel powder, silver powder and silver-coated copper powder; the copper powder, the silver powder and the silver-coated copper powder can be used for increasing the conductivity of the low-melting-point metal, the iron powder can be used for increasing the magnetic conductivity of the low-melting-point metal, and the nickel powder can be used for increasing the oxidation resistance of the low-melting-point metal and improving the metal luster of the low-melting-point metal.

For the ink with poor fluidity, the surface of the second slope surface 213, which is designed to be more attached to the ink roller 1, can be designed to be higher than the first slope surface 212, so that the problem of ink accumulation and leakage prevention at the position can be solved, and the overall volume of the asymmetric inking structure can be reduced from the side, and the design requirement of miniaturization can be met. Preferably, the second slope surface 213 is designed as a circular arc structure.

With continued reference to fig. 1, in some embodiments, the asymmetric ink feeding structure in the embodiments of the present invention may further include: locate the fountain 2 outside near the wiping roller 4 on one side of first domatic 212, wiping roller 4 is used for filtering the adhesion at the printing ink conglomeration (constitute like the metal particle that the deposit formed, solid oxide, and the two jointly) on going out the ink roller 1 surface to and smooth in advance the printing ink 3 of adhesion on going out ink roller 1, wiping roller 4 and going out between the ink roller 1 according to the demand settlement both intervals, compare traditional scraper, the contact surface of circular arc type can reduce the clearance control requirement between wiping roller 4 and the ink roller 1, and can not set up the undersize like traditional scraper and then lead to printing ink 3 to strike off completely from going out ink roller 1 very probably, lead to influencing inking quality or unable inking.

Preferably, the wiping roller 4 is a hard roller, and the surface of the wiping roller is provided with a chromium layer to reduce the adhesion degree of the ink 3 on the wiping roller 4, and the hard roller is especially suitable for low-melting-point metal in a liquid state, and the chromium layer has good detachability for the surface of the low-melting-point metal, so that the problem of oxide breeding and stacking caused by long-term adhesion of the liquid metal ink can be avoided, and the possibility of blocking the rotation of the wiping roller 4 is reduced.

In some embodiments, the wiping roller 4 may be designed to be rotatable or non-rotatable, and when non-rotatable, may act on the ink discharge roller 1 through a circular arc surface; when the structure is rotatable, the ink can be further ground to be flat.

As shown in fig. 4, preferably, the asymmetric ink feeding structure further includes, for the rotatable structure of the wiping roller 4: a wiping part 5 impregnated with cleaning liquid cooperating with the wiping roller 4. Wherein, the wiping component 5 can adopt sponge, foaming silica gel, rubber and the like. This embodiment further removes the ink adhering to the wiping member 5 from the wiping roller 4; the wiping roller 4 can be driven by the ink outlet roller 1 to rotate, and the wiping roller 4 can be locked in a manner similar to a latch, so that the wiping roller 4 cannot rotate along with the ink outlet roller 1, that is, the wiping component 5 does not have a cleaning effect on the wiping roller 4 at this time, and the situation of selectively cleaning the wiping roller 4 is realized, for example, the wiping roller 4 is cleaned only after printing is completed, or the wiping roller 4 is cleaned after the rotating speed or the inking effect of the ink outlet roller 1 has an influence beyond an acceptance range.

The embodiment of the utility model provides an in the cleaning solution can be selected according to the printing ink of chooseing for use different, if to low melting point metal, can adopt alcohol, alcohol has good clean effect to low melting point metal to alcohol is volatile can not cause the influence to the printing ink quality on the play ink roller 1.

As shown in fig. 5, in some alternative embodiments, the ink reservoir 2 may be made of an elastic material, such as a polymer material like rubber, silicone, etc., and has a certain recovery capability after deformation, so as to ensure the contact between the ink roller 1 and the ink 3 by squeezing under the condition of a small amount of ink. Specifically, a pressing bar 6 acting on the ink reservoir 2 may be provided below the ink reservoir 2 to press the ink reservoir 2 when the amount of ink in the ink reservoir 2 decreases, so that the ink 3 in the ink reservoir 2 is brought into close proximity with the ink discharging roller 1.

Another object of the utility model is to provide a printing structure based on above-mentioned asymmetric structure of giving black, as shown in fig. 6, fig. 6 is the schematic diagram of this printing structure's structure, this printing structure, include: the ink fountain 2 and the ink discharge roller 1 provided in the asymmetric ink feeding structure in any one of the above embodiments, in addition, include: an inking roller 7 driving the ink outlet roller 1 to rotate and a printing roller 8 arranged below the inking roller 7; wherein, the contact surface between the ink outlet roller 1 and the ink form roller 7 is close to the first slope surface, and the transfer length of the ink from the ink outlet roller 1 to the ink form roller 7 is less than 1/4 circumferences of the ink outlet roller 1. Wherein the rotation of the ink discharging roller 1 is driven by the rotation of the ink form roller 7.

The printing structure in this embodiment is advantageous for the miniaturization of the apparatus design, and at the same time, the ink transfer distance from the ink discharge roller 1 to the ink form roller 7 is reduced, which is advantageous for reducing the oxidation degree of the low melting point metal ink.

In some preferred embodiments, the printing structure may further include: the ink oscillating roller 9 and the ink distributing roller 10 directly acting on the ink form roller 7.

The ink transfer, ink distribution and ink channeling effects among the roller sets in the printing structure have higher requirements on the adhesion degree of the ink by the rollers, and directly influence the printing effect of the ink form roller 7. To this end, the utility model discloses the roller set that has been found to realize good low melting point metal ink printing effect is selected to low melting point metal ink.

Specifically, the surface of the ink form roller 7 has a nitrile rubber layer, the surface of the ink distribution roller 10 has a tetrafluoroethylene layer, the surface of the ink transfer roller 9 has a polyurethane layer, and the surface of the ink discharge roller 1 has a stainless steel layer (or is a stainless steel roller). The roller set design in this embodiment provides good printing results across the form roller 7 and reduces the unwanted loss of ink.

A further object of the present invention is to provide an ink supply device, as shown in fig. 7-9, fig. 7 is an exploded view of an assembly of the ink supply device in the embodiment of the present invention; FIG. 8 is a cross-sectional side view of an ink supply in an embodiment of the invention; fig. 9 is a front view of an ink supply device in an embodiment of the present invention. The ink supply device includes: the ink discharging roller comprises an ink discharging roller 1, a first bearing 11, a second bearing 12, an insertion handle 13 and an ink discharging roller fixing seat 14; the first bearing 11 and the second bearing 12 are sleeved at two ends of the ink outlet roller 1, the first bearing 11 and the second bearing 12 are connected through the inserting handle 13, so that the ink outlet roller 1, the first bearing 11, the second bearing 12 and the inserting handle form an integrated device, the ink outlet roller fixing seat 14 is provided with a first slot 15 and a second slot 16 corresponding to the first bearing 11 and the second bearing 12 in shape, an operator only needs to lift or press the inserting handle 13 to enable the first bearing 11 and the second bearing 12 to be separated from or inserted into the corresponding slots during assembly, and then the first bearing 11 and the second bearing 12 are fixed through locking structures such as a bolt 17.

The structure of the ink feeding device is simplified in the embodiment, the ink roller 1 can be assembled, disassembled and replaced in a plugging mode, the whole disassembling device is not needed in the prior art, the ink roller is obtained from the whole disassembling device, the ink roller is replaced, the assembling complexity is reduced, and the assembling and disassembling efficiency is improved.

In some embodiments, the ink supply device may further include: and a first sliding assembly 18 and a second sliding assembly 19 which are arranged on two sides of the inking roller fixing seat 14, wherein the first sliding assembly 18 and the second sliding assembly 19 are arranged in a mirror image mode and are used for driving structures (such as the inking roller 1 and the ink tank 2) on the inking roller fixing seat 14 to move by driving the inking roller fixing seat 14 to move along a straight line direction, and therefore the requirement that the inking roller 1 is contacted with or separated from the inking roller 7 in a controllable mode is met. The first sliding unit 18 and the second sliding unit 19 may be mounted on the carriage 20, and specifically, the first sliding unit 18 is described as a first sliding unit, the sliding portion of the first sliding unit 18 is fixedly connected to the ink roller fixing base 14, and the fixing portion of the first sliding unit 18 is fixedly connected to the carriage 20.

The first sliding component 18 can be controlled by a cylinder, a motor, a magnetic attraction, etc. to realize its directional reciprocating movement.

In some embodiments, the ink supply device may further include: a tank mounting frame 21 arranged in mirror image for mounting the tank 2 and/or the wiping roller 4; wherein the ink tank mounting frame 21 is assembled inside the ink outlet roller fixing base 14.

The utility model discloses give among the inking device in the embodiment at least by the asymmetric inking structure that goes out ink roller, china ink pond and constitute or at least by the asymmetric inking structure that gives that goes out ink roller, china ink pond, wiping roller constitute can directly be applied to for among the inking device, its position and structure can refer to above embodiment, no longer describe here.

In some embodiments, the ink supply device may further include: and an ink leakage groove 22 for receiving ink which may leak. The ink leaking groove 22 is located below the ink reservoir 2, and in some embodiments, may be specifically located opposite to where the wiping roller 4 contacts the ink reservoir 2.

Those of skill would further appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.

Claims

1. An ink supply device, comprising:

the ink outlet roller, the bearing sleeved on the ink outlet roller and the inserting handle connected with the bearing are arranged on the ink outlet roller;

install the play china ink roller fixing base of play ink roller, be provided with the slot that corresponds with the bearing shape on the play china ink roller fixing base, with but play the bearing constitution pluggable connection that the ink roller upper cover was established.

2. The ink feed apparatus as defined in claim 1, further comprising: and the ink tank containing ink is assembled on the ink outlet roller fixing seat and is positioned below the ink outlet roller.

3. The ink feed apparatus as defined in claim 2, further comprising: be used for the filtering ink scraping roller of the printing ink conglomeration on the play inking roller, its assembly is in on the play inking roller fixing base, the laminating the tip in china ink pond and with form clearance fit between the play inking roller.

4. The ink feed apparatus as defined in claim 2, further comprising: the ink tank mounting frame is assembled on the ink outlet roller fixing seat, and the ink tank is assembled on the ink tank mounting frame.

5. The ink feeding device according to claim 2, wherein an asymmetric ink feeding structure is formed between the ink discharging roller and the ink reservoir, and the ink reservoir accommodating groove is divided into a first groove surface and a second groove surface by an extension line of a diameter in a vertical direction of the ink discharging roller; wherein the horizontal length of the first groove surface is smaller than the radius of the ink outlet roller, and the horizontal length of the second groove surface is larger than the radius of the ink outlet roller.

6. The ink supply device according to claim 2, wherein an ink leaking groove is formed below the ink reservoir and fixed to the ink roller fixing base.

7. The ink feed apparatus as defined in claim 1, further comprising: the sliding assemblies are connected with the two sides of the ink outlet roller fixing seat and arranged in a mirror image mode and used for driving the ink outlet roller to contact/separate from the inking roller; and assembling the bearing bracket of the sliding assembly.

8. The ink feed device as in claim 7, wherein the slide assembly employs a cylinder control arrangement.

9. The ink feed device according to claim 1, wherein the ink discharge roller holder and the bearing are fixed by a bolt.

10. Printing unit, characterized in that it has an ink feed device according to any one of claims 1-9.