CN219405732U - Ink homogenizing device and printer - Google Patents
Ink homogenizing device and printer Download PDFInfo
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- CN219405732U CN219405732U CN202320939929.5U CN202320939929U CN219405732U CN 219405732 U CN219405732 U CN 219405732U CN 202320939929 U CN202320939929 U CN 202320939929U CN 219405732 U CN219405732 U CN 219405732U
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- 238000009826 distribution Methods 0.000 claims abstract description 76
- 238000007790 scraping Methods 0.000 claims abstract description 32
- 238000003825 pressing Methods 0.000 claims description 11
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 239000000976 ink Substances 0.000 description 331
- 238000000034 method Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 238000004891 communication Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
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- Inking, Control Or Cleaning Of Printing Machines (AREA)
Abstract
The present disclosure provides an ink distribution device and a printer. The ink homogenizing device comprises: a first ink tank configured to hold ink; a plate roller partially located in the first ink tank so that ink in the first ink tank can adhere to the circumferential surface of the plate roller in the cells; the first ink homogenizing roller is arranged in the first ink tank, and keeps contact with the printing plate roller so as to press the ink attached in the net holes; a wiping device configured to wipe off surplus ink adhering to a circumferential surface of the plate roller; and the second ink homogenizing roller is arranged in the first ink tank and is positioned between the ink scraping device and the first ink homogenizing roller along the rotation direction of the printing plate roller, and the second ink homogenizing roller is kept in contact with the printing plate roller so as to press the ink attached in the net holes. The printer comprises the ink homogenizing device. The ink homogenizing device and the printer can improve printing quality by removing bubbles formed in ink.
Description
Technical Field
The present disclosure relates to the field of printing devices, and in particular, to an ink distribution device and a printer.
Background
The ultraviolet light curing ink in gravure industry needs to ensure the uniformity of the cured ink layer through a high viscosity state. However, in printing production, a series of problems are easily caused in the ink circulation process due to the poor flowability of the ink in a high viscosity state, and particularly, in the ink homogenizing device in the prior art, bubbles are formed in the ink under the stirring effect generated by the high-speed rotation of the plate roller and cutting into the ink layer, and the bubbles are easily extruded into the net holes in the ink transferring process and extruded and broken at the doctor blade or the embossing rubber roller, so that the printing ink skin is generated and the ink layer is uneven, thereby seriously affecting the printing quality and increasing the rejection rate.
Disclosure of Invention
An object of the present disclosure is to provide an ink evening device and a printer to improve printing quality by removing bubbles formed in ink.
A first aspect of the present disclosure provides an ink evening device, comprising:
a first ink tank configured to hold ink;
a plate roller partially located within the first ink tank such that ink within the first ink tank can adhere to cells of a circumferential surface of the plate roller;
the first ink homogenizing roller is arranged in the first ink tank, and keeps contact with the printing plate roller so as to press the ink attached in the net holes;
a wiping device configured to wipe off surplus ink adhering to a circumferential surface of the plate roller; and
the second ink homogenizing roller is arranged in the first ink tank and is positioned between the ink scraping device and the first ink homogenizing roller along the rotation direction of the printing plate roller, and the second ink homogenizing roller is kept in contact with the printing plate roller so as to press the ink attached in the net holes.
According to some embodiments of the disclosure, the first ink distribution roller and the second ink distribution roller are mounted on the first ink tank by different mounting seats, the mounting seats including a force application portion configured to apply a pressing force to the first ink distribution roller or the second ink distribution roller that keeps the first ink distribution roller or the second ink distribution roller in contact with the plate roller.
According to some embodiments of the disclosure, the mounting base further includes a first support and a second support, the first support is mounted on the first ink tank, an end portion of the first ink distributing roller or the second ink distributing roller is mounted on the second support, the force applying portion includes an elastic member disposed between the first support and the second support, and the pressing force is from an elastic force of the elastic member.
According to some embodiments of the disclosure, the mounting base further comprises a connecting portion, and the first support and the second support are connected by the connecting portion and may be disposed close to or far from each other.
According to some embodiments of the disclosure, the connecting portion includes a bolt and a nut, the bolt passes through the second support to be connected with the first support, the nut is connected with the bolt in a matching way, and the elastic member includes a spring sleeved on the bolt.
According to some embodiments of the disclosure, the first ink tank has a mounting position at an end near the ink scraping device that is higher than a mounting position at an end remote from the ink scraping device.
According to some embodiments of the present disclosure, the position of the first ink tank relative to the plate roller is adjustable, and the attitude of the first ink tank relative to the plate roller is adjustable.
According to some embodiments of the disclosure, the ink scraping device further comprises a first hanging seat and a second hanging seat, wherein the first hanging seat is provided with a fixed end fixedly arranged relative to the axis of the printing plate roller and a free end used for being connected with one end of the first ink groove, which is close to the ink scraping device, and the second hanging seat is provided with a fixed end fixedly arranged relative to the axis of the printing plate roller and a free end used for being connected with one end of the first ink groove, which is far away from the ink scraping device, and the position of at least one of the free end of the first hanging seat and the free end of the second hanging seat relative to the axis of the printing plate roller is adjustable.
According to some embodiments of the disclosure, the free end of the second hanging seat is adjustable in position relative to the axis of the plate roller, and the ink distributing device further includes a limiting portion fixedly disposed relative to the axis of the plate roller and configured to limit a maximum value of a mounting height of the first ink tank near an end of the ink scraping device.
According to some embodiments of the disclosure, the profile of the first ink tank is crescent shaped in a cross section of the first ink tank perpendicular to the axis of the plate roller.
According to some embodiments of the disclosure, the first ink distribution roller has a diameter greater than a diameter of the second ink distribution roller.
According to some embodiments of the disclosure, the first ink distribution roller is a smooth roller and/or the second ink distribution roller is a smooth roller.
According to some embodiments of the present disclosure, the ink supply device further includes an ink outlet provided upstream of the first ink distribution roller in a rotational direction of the plate roller and configured to supply ink to the first ink tank.
According to some embodiments of the present disclosure, the ink supply device further includes a second ink tank, at least a portion of the first ink tank being located within the second ink tank, the first ink tank having an ink return port in communication with the second ink tank, the second ink tank in communication with the ink inlet port of the ink supply device.
According to some embodiments of the present disclosure, the ink supply device further includes a blocking portion that blocks ink supplied from the ink outlet of the ink supply device from entering the second ink tank.
In the ink homogenizing device of the embodiment of the disclosure, the printing plate roller and the first ink homogenizing roller form a kinematic pair, and the kinematic pair can be used for extruding and removing air bubbles generated by ink entering the first ink tank and stirring the ink by the printing plate roller, transferring the ink in the first ink tank to the net holes of the printing plate roller and homogenizing the ink; the printing plate roller and the second ink homogenizing roller form a kinematic pair, can be used for extruding and removing bubbles generated by the impact of scraped ink back flow on the liquid surface, and homogenizing the ink adhered in the printing plate roller net holes again. Therefore, the ink homogenizing device can improve the bubble removing efficiency, the bubble removing effect and the ink homogenizing effect, and further improve the printing quality.
A second aspect of the present disclosure provides a printer comprising an ink distribution device according to the first aspect of the present disclosure.
The printer provided by the present disclosure has advantages of the ink homogenizing device provided by the present disclosure.
Other features of the present disclosure and its advantages will become apparent from the following detailed description of exemplary embodiments of the disclosure, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this application, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and do not constitute an undue limitation on the disclosure. In the drawings:
fig. 1 is a schematic structural view of an ink-homogenizing device according to some embodiments of the present disclosure.
Fig. 2 is a schematic side view of the first ink tank shown in fig. 1, in which mounting manners of the first ink distributing roller and the second ink distributing roller are shown.
Fig. 3 is a schematic structural view of a first ink tank of some embodiments of the present disclosure, illustrating the mounting of a first ink distribution roller and a second ink distribution roller.
Fig. 4 is a schematic structural view of the first ink tank shown in fig. 3, in which an exploded structure of the first ink distribution roller and the corresponding mount is shown.
In fig. 1 to 4, each reference numeral represents:
1. a plate roller; 2. an ink supply device; 3. a shielding part; 4. a second ink tank; 5. a wiping device; 6. a first ink tank; 7. a mounting base; 8. a first ink distribution roller; 9. a second ink distributing roller; 10. a first pin; 11. a second pin; 12. a first support; 13. a bolt; 14. a force application part; 15. a second support; 16. a nut; 17. a bearing; 18. hanging lugs; 19. a first hanging seat; 20. the second hanging seat; 21. and a limiting part.
Detailed Description
The following description of the technical solutions in the embodiments of the present disclosure will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present disclosure, and it is apparent that the described embodiments are only some embodiments of the present disclosure, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses. All other embodiments, which can be made by one of ordinary skill in the art without inventive effort, based on the embodiments in this disclosure are intended to be within the scope of this disclosure.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present disclosure, it should be understood that the use of terms such as "first," "second," etc. for defining components is merely for convenience in distinguishing corresponding components, and the terms are not meant to be construed as limiting the scope of the present disclosure unless otherwise indicated.
In the description of the present disclosure, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present disclosure and to simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be configured and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present disclosure; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
In the related art, bubbles in the ink can be removed by arranging a bubble removing rod and other structures in the ink tank, and the principle is as follows: after the ink flows through the micro gap between the plate roller and the bubble removing rod, the flow speed is increased, and the ink is extruded into the net holes by the negative pressure directed to the plate roller, so that bubbles are discharged. However, the above-described defoaming method has the following problems: 1. the bubble removing rod occupies the space of the ink tank, reduces the capacity of the ink tank, reduces the space for transferring ink below the printing plate roller, and can generate bubbles due to unsmooth flowing of the ink. 2. If an operator adjusts the installation position of the ink tank, the size of the micro gap can also change, but the change of the size of the micro gap is not easy to observe, and the bubble removal effect is not facilitated to be improved.
To improve the above-described problems, referring to fig. 1 to 4, some embodiments of the present disclosure provide an ink leveler including a first ink tank 6, a plate roller 1, a first ink leveler roller 8, a doctor blade 5, and a second ink leveler roller 9.
The first ink tank 6 is configured to hold ink. The plate roller 1 is partially located in the first ink tank 6 so that ink in the first ink tank 6 can adhere to the circumferential surface of the plate roller 1 in the cells. A first ink distribution roller 8 is provided in the first ink tank 6, and the first ink distribution roller 8 is held in contact with the plate roller 1 to press the ink adhering to the inside of the cells. The wiping device 5 is configured to wipe off excess ink adhering to the circumferential surface of the plate roller 1. A second ink distribution roller 9 is disposed in the first ink tank 6 between the doctor device 5 and the first ink distribution roller 8 in the rotation direction of the plate roller 1, and the second ink distribution roller 9 is kept in contact with the plate roller 1 to press the ink adhering to the inside of the mesh.
The ink homogenizing device provided by the embodiment of the disclosure has the following working processes: as the printing plate roller 1 rotates, the printing plate roller 1 and the first ink homogenizing roller 8 are mutually extruded to remove bubbles of ink contained in the first ink tank 6, the first ink homogenizing roller 8 grinds ink attached in a net hole of the printing plate roller 1 uniformly, as the printing plate roller 1 continues to rotate, the printing plate roller 1 and the second ink homogenizing roller 9 are mutually extruded to further remove bubbles, the second ink homogenizing roller 9 grinds the ink transferred into the net hole uniformly, the scraping device 5 scrapes off excessive ink attached on the printing plate roller 1, the excessive ink flows back to the first ink tank 6, at least a part of the reflowed ink can reach the position of the second ink homogenizing roller 9, and the inks are extruded by the second ink homogenizing roller 9 and then are converged into the ink contained in the first ink tank 6. The above process is repeated with the rotation of the plate roller 1, forming an ink circulation.
In the ink homogenizing device of the embodiment of the disclosure, the printing plate roller and the first ink homogenizing roller form a kinematic pair, and the kinematic pair can be used for extruding and removing air bubbles generated by ink entering the first ink tank and stirring the ink by the printing plate roller, transferring the ink in the first ink tank to the net holes of the printing plate roller and homogenizing the ink; the printing plate roller and the second ink homogenizing roller form a kinematic pair, can be used for extruding and removing bubbles generated by the impact of scraped ink back flow on the liquid surface, and homogenizing the ink adhered in the printing plate roller net holes again. Therefore, the ink homogenizing device can improve the bubble removing efficiency, the bubble removing effect and the ink homogenizing effect, and further improve the printing quality.
Referring to fig. 1, in some embodiments, the ink distribution device further includes an ink supply device 2, and an ink outlet of the ink supply device 2 is disposed upstream of the first ink distribution roller 8 in the rotational direction of the plate roller 1 and configured to supply ink to the first ink tank 6.
Referring to fig. 1, a first ink distribution roller 8 may be disposed below the plate roller to the right of the axis of the plate roller. In the above embodiment, the ink distributing device can satisfy the ink distributing requirements of the side of the ink supplying device 2 and the side of the ink scraping device 5 by the first ink distributing roller 8 near the ink supplying device 2 and the second ink distributing roller 9 near the ink scraping device 5.
In some embodiments, the ink distribution device further includes a second ink tank 4, at least a portion of the first ink tank 6 is located within the second ink tank 4, the first ink tank 6 has an ink return port in communication with the second ink tank 4, and the second ink tank 4 is in communication with the ink inlet port of the ink supply device 2.
If the ink level in the first ink tank 6 exceeds the position of the ink return port, the ink can enter the second ink tank 4 through the ink return port, so that the ink level of the first ink tank 6 is kept stable.
In order to prevent the ink supplied by the ink supply device 2 from directly entering the second ink tank 4, affecting the circulation of the ink during printing, referring to fig. 1, in some embodiments, the ink homogenizing device further comprises a shielding part 3, wherein the shielding part 3 is shielded between the second ink tank 4 and the ink outlet of the ink supply device 2 to block the ink supplied by the ink outlet of the ink supply device 2 from entering the second ink tank 4.
Referring to fig. 1 to 4, in some embodiments, the ink distribution device further comprises a mounting base 7, the first ink distribution roller 8 and the second ink distribution roller 9 are mounted on the first ink tank 6 by different mounting bases 7, the mounting base 7 comprises a force application portion 14, and the force application portion 14 is configured to apply a pressing force to the first ink distribution roller 8 or the second ink distribution roller 9 to keep the first ink distribution roller 8 or the second ink distribution roller 9 in contact with the plate roller 1.
Referring to fig. 1 to 4, the mount 7 may include a first mount 7A and a second mount 7B. The first mount 7A is located below the plate roller 1, and the second mount 7B is located downstream of the first mount 7A in the rotation direction of the plate roller 1 and may be disposed above the liquid surface of the first ink tank 6. The first mount 7A and the second mount 7B need to be kept at a certain distance to avoid contact and interference between the first ink distributing roller 8 and the second ink distributing roller 9.
Both ends of the first ink distribution roller 8 are mounted on the first ink tank 6 by the first mount 7A, and the urging portion of the first mount 7A is configured to apply a pressing force to the first ink distribution roller 8 that keeps the first ink distribution roller 8 in contact with the plate roller 1. Both ends of the second ink distribution roller 9 are mounted on the first ink tank 6 through the second mount 7B, and the urging portion of the second mount 7B is configured to apply a pressing force to the second ink distribution roller 9 that keeps the second ink distribution roller 9 in contact with the plate roller 1. As shown in fig. 4, the ink leveler may further include a bearing 17 mounted on the mounting base 7, and the bearing 17 is used to support both ends of the first ink leveler roller 8 or both ends of the second ink leveler roller 9.
Referring to fig. 4, in some embodiments, the mounting base 7 further includes a first support 12 and a second support 15, the first support 12 is mounted on the first ink tank 6, an end portion of the first ink distributing roller 8 or the second ink distributing roller 9 is mounted on the second support 15, and the force applying portion 14 includes an elastic member disposed between the first support 12 and the second support 15, and the pressing force is from an elastic force of the elastic member.
The first ink distribution roller 8 and the second ink distribution roller 9 may be different in size in view of space constraints and differences in function. Referring to fig. 3 and 4, in some embodiments, the diameter of the first ink distribution roller 8 is greater than the diameter of the second ink distribution roller 9.
The first mounting seat 7A and the second mounting seat 7B can adopt elastic pieces with different specifications so as to adaptively adjust the pressing force according to the specifications of the ink distributing roller. For example, the elastic members employed by the first mount 7A and the second mount 7B may be springs having different working strokes.
Under the condition that the mounting positions of the first ink tank 6 are different, the mounting seats of the form can enable the first ink distributing roller 8 and the second ink distributing roller 9 to be fully contacted with the printing plate roller 1, and can enable the stress deformation of the first ink distributing roller 8 and the second ink distributing roller 9 to be kept consistent as much as possible, so that on one hand, good bubble extrusion effect is maintained under the condition that the printing plate roller 1 is contacted with the first ink distributing roller 8 and the second ink distributing roller 9 for a long time for transmission, and the risk that bubbles are extruded and broken along with the ink transferred to the position of the ink scraping device 5 under the action of the ink scraping device 5 is reduced; on the other hand, the service lives of the first ink distributing roller 8 and the second ink distributing roller 9 can be prolonged.
In some embodiments, the mounting seat 7 further comprises a connection portion by which the first support 12 and the second support 15 are connected and can be disposed close to or far from each other.
Based on the mounting seat structure of the embodiment, the axis of the first ink distributing roller 8 or the second ink distributing roller 9 can be close to or far away from the first support 12 along with the second support 15, so that the distance between the first ink distributing roller and the axis of the printing plate roller 1 can be adjusted, and the ink distributing requirements of the printing plate rollers 1 with different sizes can be met.
Referring to fig. 4, in some embodiments, the connection portion includes a bolt 13 and a nut 16, the bolt 13 is connected to the first support 12 through the second support 15, the nut 16 is cooperatively connected to the bolt 13, and the elastic member includes a spring fitted over the bolt 13.
In the above embodiment, the bolt 13 may function as a supporting spring, which is beneficial to keeping the magnitude and direction of the pressing force stable. Moreover, by adjusting the matching position of the nut 16 on the bolt 13, the maximum distance between the first support 12 and the second support 15 can be adjusted, thereby facilitating the adjustment of the pressing force.
In order to enable the ink scraped off by the ink scraping means 5 to enter the first ink tank 6 entirely to participate in the ink circulation, referring to fig. 1, in some embodiments, the mounting position of the end of the first ink tank 6 near the ink scraping means 5 is higher than the mounting position of the end far from the ink scraping means 5.
To match the ink balancing requirements of different gauges of plate roller 1, the first ink tank 6 is enabled to form enough space for holding ink and transferring ink, and in some embodiments, the position of the first ink tank 6 relative to the plate roller 1 is adjustable; in some embodiments, the attitude of the first ink tank 6 relative to the plate roller 1 is adjustable.
The mounting position of the end of the first ink tank 6 near the ink scraping device 5 (i.e., the left end of the first ink tank 6 in fig. 1 and 2) may be slightly higher than the axis of the plate roller 1. In order to balance the ink flow rates on the side of the ink supply device 2 and the side of the ink scraping device 5 so that the ink can circulate uniformly, in particular, in a section of the first ink tank 6 perpendicular to the axis of the plate roller 1, an angle between a line connecting the mounting position of one end of the first ink tank 6 near the ink scraping device 5 and the axis of the plate roller 1 and the vertical direction may be set to 75 °.
In some embodiments, the ink distribution device further comprises a first hanging socket 19 and a second hanging socket 20, the first hanging socket 19 having a fixed end fixedly arranged relative to the axis of the plate roller 1 and a free end for hanging an end of the first ink tank 6 near the ink scraping device 5, the second hanging socket 20 having a fixed end fixedly arranged relative to the axis of the plate roller 1 and a free end for hanging an end of the first ink tank 6 remote from the ink scraping device 5, at least one of the free end of the first hanging socket 19 and the free end of the second hanging socket 20 being adjustable in position relative to the axis of the plate roller 1.
In some embodiments, the position of the free end of the second hooking seat 20 with respect to the axis of the plate roller 1 is adjustable, the inking device further comprising a limit portion 21, the limit portion 21 being fixedly arranged with respect to the axis of the plate roller 1 and configured to limit the maximum value of the mounting height of the end of the first ink tank 6 close to the doctor device 5.
Referring to fig. 1 to 4, the first hanging seat 19 is disposed in the second ink tank 4, and the ink homogenizing device further includes a hanging lug 18 disposed on the first ink tank 6, where the first ink tank 6 is hung on the first hanging seat 19 through the hanging lug 18. In the state in which the hanging lugs 18 are hung with the first hanging seats 19, the first hanging seats 19 can function as a minimum value for limiting the installation height of the end of the first ink tank 6 near the ink scraping device 5. The fixed end of the second hanging seat 20 is fixedly arranged relative to the second ink tank 4, and the free end of the second hanging seat 20 comprises a hook movably connected to the fixed end of the second hanging seat 20. The stopper 21 is provided on the second ink tank 4. The ink homogenizing device further comprises a first pin shaft 10 arranged at one end of the first ink tank 6 close to the ink scraping device 5 and a second pin shaft 11 arranged at one end of the first ink tank 6 far away from the ink scraping device 5, and the first ink tank 6 is hung on a hook of the second hanging seat 20 through the second pin shaft 11.
By changing the position of the hooks, for example raising or lowering the hooks relative to the axis of the plate roller 1, the end of the first ink channel 6 remote from the doctor blade 5 can be rotated and slid relative to the hooks, and the position and attitude of the first ink channel 6 relative to the axis of the plate roller 1 can be changed simultaneously. If the mounting height of the end of the first ink tank 6 near the ink scraping device 5 has reached the maximum value, the first pin shaft 10 abuts against the limiting part 21, and along with the movement of the hook, the end of the first ink tank 6 far away from the ink scraping device 5 can still rotate relative to the end of the first ink tank 6 near the ink scraping device 5, so that the posture of the first ink tank 6 relative to the axis of the printing plate roller 1 is changed.
Referring to fig. 1-4, in some embodiments, the profile of the first ink tank 6 is crescent shaped in a cross-section of the first ink tank 6 perpendicular to the axis of the plate roller 1.
The first ink groove 6 with the crescent outline can better adapt to the outline of the printing plate roller 1, and the ink soaking quantity of the printing plate roller 1 is increased, so that the requirements of ink containing and ink transferring in the printing process are met, the ink capacity of the first ink groove 6 can be as large as possible, and the transferring space of the ink below the printing plate roller 1 can be enlarged.
The first ink distributing roller 8 and the second ink distributing roller 9 may be mesh surface roller or smooth surface roller. However, if the surface of the ink distribution roller is not smooth, after long-term use, resin particles or other impurities are easily accumulated on the surface of the ink distribution roller, so that the ink distribution roller is not easy to clean, and the impurities are also transferred into the net holes on the circumferential surface of the printing plate roller 1 in the ink distribution process, so that the problem of printing pull lines is generated.
To reduce the risk of impurities such as particles remaining in the ink adhering to the surface of the ink distribution roller, and to improve the printing quality, in some embodiments, the first ink distribution roller 8 is a smooth roller; in some embodiments, the second ink distribution roller 9 is a smooth roller.
Some embodiments of the present disclosure also provide a printer including the aforementioned ink-homogenizing device. The printer provided by the embodiment of the disclosure has the advantages of the ink homogenizing device provided by the embodiment of the disclosure.
Finally, it should be noted that: the above embodiments are merely for illustrating the technical solution of the present disclosure and are not limiting thereof; although the present disclosure has been described in detail with reference to preferred embodiments, those of ordinary skill in the art will appreciate that: modifications may be made to the specific embodiments of the disclosure or equivalents may be substituted for part of the technical features that are intended to be included within the scope of the claims of the disclosure.
Claims (16)
1. An ink homogenizing device, comprising:
a first ink tank (6) configured to hold ink;
-a plate roller (1) partially located within the first ink tank (6) so that ink within the first ink tank (6) can adhere to the circumferential surface of the plate roller (1) within a pocket;
a first ink homogenizing roller (8) disposed in the first ink tank (6), the first ink homogenizing roller (8) being held in contact with the plate roller (1) to press the ink adhering to the inside of the mesh;
a wiping device (5) configured to wipe off excess ink adhering to the circumferential surface of the plate roller (1); and
the second ink homogenizing roller (9) is arranged in the first ink tank (6) and is positioned between the ink scraping device (5) and the first ink homogenizing roller (8) along the rotation direction of the printing plate roller (1), and the second ink homogenizing roller (9) is kept in contact with the printing plate roller (1) so as to press the ink attached in the net holes.
2. The ink distribution device according to claim 1, further comprising a mounting base (7), the first ink distribution roller (8) and the second ink distribution roller (9) being mounted on the first ink tank (6) by different mounting bases (7), the mounting base (7) comprising a force application portion (14), the force application portion (14) being configured to apply a pressing force to the first ink distribution roller (8) or the second ink distribution roller (9) that keeps the first ink distribution roller (8) or the second ink distribution roller (9) in contact with the plate roller (1).
3. The ink distribution device according to claim 2, wherein the mounting base (7) further comprises a first support (12) and a second support (15), the first support (12) is mounted on the first ink tank (6), the end portion of the first ink distribution roller (8) or the second ink distribution roller (9) is mounted on the second support (15), and the force application portion (14) comprises an elastic member disposed between the first support (12) and the second support (15), and the pressing force is derived from an elastic force of the elastic member.
4. An ink distribution device according to claim 3, characterized in that the mounting (7) further comprises a connection portion by which the first support (12) and the second support (15) are connected and are arranged close to or remote from each other.
5. The ink homogenizing device according to claim 4, wherein the connecting portion comprises a bolt (13) and a nut (16), the bolt (13) passes through the second support (15) to be connected with the first support (12), the nut (16) is cooperatively connected with the bolt (13), and the elastic member comprises a spring sleeved on the bolt (13).
6. The ink distribution device according to claim 1, characterized in that the mounting position of the end of the first ink tank (6) close to the ink scraping device (5) is higher than the mounting position of the end remote from the ink scraping device (5).
7. The inking device according to claim 6, wherein the position of the first ink tank (6) relative to the plate roller (1) is adjustable and/or the attitude of the first ink tank (6) relative to the plate roller (1) is adjustable.
8. The ink distribution device according to claim 7, characterized in that it further comprises a first hooking seat (19) and a second hooking seat (20), said first hooking seat (19) having a fixed end fixedly arranged with respect to the axis of the plate roller (1) and a free end for hooking an end of the first ink tank (6) close to the ink scraping device (5), said second hooking seat (20) having a fixed end fixedly arranged with respect to the axis of the plate roller (1) and a free end for hooking an end of the first ink tank (6) remote from the ink scraping device (5), the position of at least one of the free end of the first hooking seat (19) and the free end of the second hooking seat (20) being adjustable with respect to the axis of the plate roller (1).
9. The inking device according to claim 8, wherein the free end of the second hooking seat (20) is adjustable in position with respect to the axis of the plate roller (1), the inking device further comprising a limit portion (21), the limit portion (21) being fixedly arranged with respect to the axis of the plate roller (1) and configured to limit the maximum value of the mounting height of the end of the first ink tank (6) close to the wiping device (5).
10. Ink homogenizing device according to claim 6, characterized in that the contour of the first ink tank (6) is crescent-shaped in a section of the first ink tank (6) perpendicular to the axis of the plate roller (1).
11. The ink distribution device according to any one of claims 1 to 10, characterized in that the diameter of the first ink distribution roller (8) is larger than the diameter of the second ink distribution roller (9).
12. The ink distribution device according to any one of claims 1 to 10, characterized in that the first ink distribution roller (8) is a smooth roller and/or the second ink distribution roller (9) is a smooth roller.
13. The ink distribution device according to any one of claims 1 to 10, further comprising an ink supply device (2), wherein an ink outlet of the ink supply device (2) is provided upstream of the first ink distribution roller (8) in the rotational direction of the plate roller (1) and is configured to supply ink to the first ink tank (6).
14. The ink distribution device according to claim 13, further comprising a second ink tank (4), at least a portion of the first ink tank (6) being located within the second ink tank (4), the first ink tank (6) having an ink return port communicating with the second ink tank (4), the second ink tank (4) communicating with an ink inlet port of the ink supply device (2).
15. The ink distribution device according to claim 14, further comprising a shielding portion (3), wherein the shielding portion (3) is shielded between the second ink tank (4) and the ink outlet of the ink supply device (2) to block ink supplied from the ink outlet of the ink supply device (2) from entering the second ink tank (4).
16. A printer comprising an ink distribution device according to any one of claims 1 to 15.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202320939929.5U CN219405732U (en) | 2023-04-24 | 2023-04-24 | Ink homogenizing device and printer |
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| CN202320939929.5U CN219405732U (en) | 2023-04-24 | 2023-04-24 | Ink homogenizing device and printer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117019515A (en) * | 2023-10-09 | 2023-11-10 | 常州润来科技有限公司 | Gravure gluing device and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117019515A (en) * | 2023-10-09 | 2023-11-10 | 常州润来科技有限公司 | Gravure gluing device and method |
| CN117019515B (en) * | 2023-10-09 | 2023-12-15 | 常州润来科技有限公司 | Gravure gluing device and method |
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