CN211710458U - Ink-adding type water pen - Google Patents
Ink-adding type water pen Download PDFInfo
- Publication number
- CN211710458U CN211710458U CN202020090324.XU CN202020090324U CN211710458U CN 211710458 U CN211710458 U CN 211710458U CN 202020090324 U CN202020090324 U CN 202020090324U CN 211710458 U CN211710458 U CN 211710458U
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- ink
- pen
- needle tube
- rear end
- pipe
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 238000010521 absorption reaction Methods 0.000 claims abstract description 21
- 239000000835 fiber Substances 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 239000007788 liquid Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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Abstract
The utility model discloses a water pen capable of adding ink, a fiber ink guiding core, capillary fins and an ink storage tube; the front end of the ink storage tube is provided with a capillary fin; one end of the fiber ink-guiding core is inserted into the capillary fin, the other end of the fiber ink-guiding core is led out to the pen point, and the ink-adding type water-based pen further comprises a piston, an ink-absorbing pipe and a rear end cover; the piston is adhered to the tail end of the ink storage tube; the ink suction pipe is sleeved outside the rear section pipe body of the ink storage pipe; the piston is in sliding sealing fit with the inner wall of the ink suction pipe; a through hole for communicating the ink suction pipe with the ink storage pipe is formed in the center of the piston; the rear end cover is clamped at the tail end of the ink absorption pipe; set up the blotting mouth that link up on the rear end cap, the utility model discloses, simple structure, convenient operation.
Description
Technical Field
The utility model relates to a water pen technical field specifically is can add black formula water pen.
Background
The pens commonly used in the market at present comprise a water-based pen, a gel ink pen and a fountain pen, and the advantages and the disadvantages of the three pens are different. The gel-ink pen core without ink absorption is a gel-ink pen with the main characteristic, and is widely used in the working life of people due to the characteristics of convenience, cleanness and fluent writing; the water pen and the gel pen are different in that the ink used by the water pen is pure water, and the paper has strong absorbability on the ink, so that the ink is smoother, but the water pen cannot replace a refill, which also highlights the contradiction with the establishment of a conservation-oriented society; the pen point of the pen is made of metal, writing is smooth and elastic, and the pen is widely praised, and in addition, the use method of the pen capable of repeatedly adding ink greatly sticks to the theme of energy conservation and environmental protection, but the pen with good quality is expensive, and the problems of poor writing experience feeling, complicated and difficult ink changing procedures, ink leakage, easy damage of the pen point and the like caused by the fact that students select the pen with low price.
The prior art is through changing the ballpoint pen into can adding black formula to give the pneumatic valve of this application, for example patent publication is CN 03239049.1's reference, and it discloses the straight liquid formula ballpoint pen that can irritate ink, has adopted following technical scheme, solves the problem that traditional disposable ballpoint pen used extravagantly, specifically does: the pen tube of the original straight liquid type ball pen is changed into a front section and a rear section, the tail end of the front section of pen tube is provided with internal and external threads which are sleeved with a rubber gasket, the front end of the rear section of pen tube is provided with internal threads, and the two sections of pen tubes are connected through the internal and external threads; however, obviously, the ink adding mode is complex, the pen tube is required to be unscrewed, ink must be added into the pen tube, and the adding is extremely difficult due to the small tube diameter of the pen tube; meanwhile, in the process of repeated use of the structure of the threaded connection, the structure is easily corroded due to long-term immersion in ink, so that the threaded part is damaged, the sealing performance of the threaded connection is reduced, and the long-term use is not facilitated.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve lies in: provides an ink-adding type water pen convenient for adding ink.
In order to solve the technical problem, the utility model provides a following technical scheme: the ink-adding type water pen comprises a fiber ink guiding core, capillary fins and an ink storage tube; the front end of the ink storage tube is provided with a capillary fin; one end of the fiber ink-guiding core is inserted into the capillary fin, the other end of the fiber ink-guiding core is led out to the pen point, and the ink-adding type water-based pen further comprises a piston, an ink-absorbing pipe and a rear end cover; the piston is adhered to the tail end of the ink storage tube; the ink suction pipe is sleeved outside the rear section pipe body of the ink storage pipe; the piston is in sliding sealing fit with the inner wall of the ink suction pipe; a through hole for communicating the ink suction pipe with the ink storage pipe is formed in the center of the piston; the rear end cover is clamped at the tail end of the ink absorption pipe; and the rear end cover is provided with a through ink absorption port.
After the ink in the ink-adding type water-based pen is used up, the ink absorbing opening is opened, the ink absorbing pipe is pushed towards the ink storing pipe, when the lengths of the ink absorbing pipe and the ink storing pipe are shortest, the ink absorbing pipe and the rear end cover are immersed into the ink bottle, the ink absorbing opening is immersed below the liquid level, at the moment, the ink absorbing pipe is fixed by hands, the ink storing pipe is pulled by the other hand, when the total length of the ink storing pipe and the ink absorbing pipe is longest, the pulling is stopped, the ink absorbing pipe is taken out of the ink bottle, the ink absorbing opening is sealed, the ink adding operation of the ink-adding type water-based pen is completed, the space between the ink absorbing pipe and the ink storing pipe is enlarged, the inner part of the ink absorbing pipe reaches negative pressure, and ink is absorbed from the ink absorbing opening by the negative pressure, the structure is simple.
Preferably, one side of the ink suction port is provided with a leakage-proof cover matched with the ink suction port; the leakage-proof cover is arranged on the rear end cover through a hinge.
After the ink sucking port is used for sucking ink, the ink sucking port is covered by a leakage-proof cover to prevent the ink from flowing out from the ink sucking port.
After the ink in the ink-adding type water-based pen is used up, the leakage-proof cover is opened to expose the ink-absorbing opening, the ink-absorbing pipe is pushed towards the ink-storing pipe, when the length of the ink-absorbing pipe and the ink-storing pipe is shortest, the ink-absorbing pipe and the rear end cover are immersed into the ink bottle, the ink-absorbing opening is soaked below the liquid level, at the moment, the ink-absorbing pipe is fixed by hand, the ink-storing pipe is pulled by the other hand, when the total length of the ink-storing pipe and the ink-absorbing pipe is longest, the pulling is stopped, the ink-absorbing pipe is taken out of the ink bottle, the leakage-proof cover is closed, and the ink-absorbing opening is blocked, so that the ink-adding operation of the ink-adding type water-based pen is completed, the space between the ink-absorbing pipe and the ink-storing pipe is enlarged to enable the interior.
Preferably, the rear end cover is also provided with a needle tube communicated with the interior of the rear end cover; the needle tube is rotatably connected in an ink absorption port of the rear end cover; when the needle head of the needle tube and the pen point face the same direction, the ink absorption port is disconnected with the needle tube, otherwise, the ink absorption port is communicated with the needle tube.
When ink is sucked, the needle tube is rotated to enable the needle head of the needle tube to face the opposite direction to the pen point, the ink sucking port is communicated with the needle tube, the needle tube is inserted into the ink bottle, the ink storage tube is drawn to suck the ink, after the ink is sucked, the needle tube is rotated to enable the needle head of the needle tube to face the same direction as the pen point, the ink sucking port is closed at the moment, the ink is effectively prevented from being adhered to the outer wall of the ink sucking tube, and meanwhile, the ink sucking tube and the ink storage tube can be prevented from completely penetrating into the ink bottle when being shortest and.
Preferably, a hemispherical shaft sleeve is fixedly connected in the ink absorbing port; a rotating node which is in rotating fit with the shaft sleeve is connected in the shaft sleeve; the needle tube is embedded in one side of the rotating node.
Preferably, a shaft sleeve ink inlet communicated with the ink absorbing port is arranged on one side, facing the ink absorbing port, of the shaft sleeve in a penetrating manner; the two sides of the shaft sleeve along the length direction of the ink-adding type water-based pen are correspondingly provided with clamping grooves with the same size as the outer diameter of the needle tube.
Preferably, a needle tube ink outlet communicated with the needle tube is formed in a central axis of the rotating node perpendicular to the length direction of the needle tube; when the needle head of the needle tube and the pen point of the ink-adding type water-based pen face the same direction, the opening of the ink outlet of the needle tube faces the reverse direction of the center of the rear end cover.
The needle tubing is overturned, the rotation node rotates, the needle head orientation of the needle tubing can be reversed to the orientation of the pen point of the ink-adding type water-based pen, at the moment, the opening of the ink outlet of the needle tubing on the rotation node faces the ink inlet of the shaft sleeve and is communicated with the ink inlet of the shaft sleeve, ink absorption can be carried out, otherwise, the opening of the ink outlet of the needle tubing on the rotation node faces the reverse direction of the ink inlet, and the part of the rotation node, which is opposite to the ink outlet of the needle tubing, blocks the ink inlet of the shaft sleeve to.
Preferably, the rear end cover takes the center of the ink suction port as a starting point and penetrates through a limiting groove for clamping the needle tube along the length direction of the ink-adding type water-based pen; the depth of the limiting groove is smaller than the wall thickness of the rear end cover.
When the needle tube absorbs ink, the tube body is clamped in the limiting groove, and after the needle tube absorbs ink, the tube body is also clamped in the limiting groove, so that the needle tube is further stabilized.
When sucking ink, the needle tube is rotated, the rotation node rotates, the opening of the ink outlet of the needle tube on the rotation node faces the ink inlet of the shaft sleeve, the ink sucking port, the ink outlet of the needle tube and the ink inlet of the shaft sleeve are communicated, the needle tube is inserted into an ink bottle, the ink storage tube is pulled to suck the ink, after the suction is finished, the needle tube is rotated, the rotation node rotates, the opening of the ink outlet of the needle tube on the rotation node faces the reverse direction of the ink inlet of the shaft sleeve, the ink inlet of the shaft sleeve is blocked by the rotation node, the ink outlet of the needle tube is separated from the ink inlet of the shaft sleeve, the ink sucking port is closed at the moment, the ink is effectively prevented from being adhered to the outer wall of the ink sucking tube, and meanwhile, the ink sucking tube and the ink storage tube can be prevented.
Compared with the prior art, the beneficial effects of the utility model are that:
A. the space between the ink suction pipe and the ink storage pipe is increased to enable the interior of the ink suction pipe to reach negative pressure, and ink is sucked from the ink suction port by the negative pressure, so that the ink suction device is simple in structure and convenient to operate;
B. the ink bottle has the advantages that the needle tube is arranged to absorb ink, so that the ink is effectively prevented from being adhered to the outer wall of the ink absorption tube, and meanwhile, the ink absorption tube and the ink storage tube can be prevented from being completely penetrated into the ink bottle when being shortest, and the ink absorption operation is difficult to complete.
Drawings
Fig. 1 is a cross-sectional view of a water pen capable of being filled with ink according to a first embodiment of the present invention;
FIG. 2 is a cross-sectional view of a pen with ink on it according to a second embodiment of the present invention;
fig. 3 is an isometric view of a rear end cap according to a second embodiment of the present invention;
FIG. 4 is a view showing the mounting of the needle cannula according to the second embodiment of the present invention;
FIG. 5 is a schematic view of a needle cannula according to a second embodiment of the present invention;
fig. 6 is a schematic view illustrating a first installation of the rotation node and the shaft sleeve according to the second embodiment of the present invention;
fig. 7 is a schematic view of a first installation of the rotation node and the shaft sleeve according to the second embodiment of the present invention.
Detailed Description
In order to facilitate the understanding of the technical solutions of the present invention by those skilled in the art, the technical solutions of the present invention will now be further described with reference to the drawings attached to the specification.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
Example one
Referring to fig. 1, the present embodiment discloses an ink-adding type water pen, which includes a fiber ink-guiding core 2, capillary fins 3, and an ink storage tube 4. The front end of the ink storage tube 4 is provided with a capillary fin 3. One end of the fiber ink-guiding core 2 is inserted into the capillary fins 3, and the other end is led out to the pen point. (the technology is prior art, see https:// b2b.baidu.com/land
The ink-adding type water pen also comprises a piston 5, an ink absorbing pipe 6 and a rear end cover 7. The piston 5 is adhered to the end of the ink storage tube 4. The ink suction pipe 6 is sleeved outside the rear section pipe body of the ink storage pipe 4. The piston 5 is in sliding sealing fit with the inner wall of the ink suction pipe 6. The center of the piston 5 is provided with a through hole 51 for communicating the ink absorption tube 6 and the ink storage tube 4. The rear end cap 7 is snap-fitted to the end of the ink absorbing tube 6. The rear end cover 7 is provided with a through ink suction port 71.
After the ink in the ink-adding type water pen is used up, the ink absorbing opening 71 is opened, the ink absorbing pipe 6 is pushed towards the ink storing pipe 4, when the length of the ink absorbing pipe 6 and the length of the ink storing pipe 4 reach the shortest length, the ink absorbing pipe 6 and the rear end cover 7 are immersed into the ink bottle, the ink absorbing opening 71 is soaked below the liquid level, at the moment, the ink absorbing pipe 6 is fixed by hand, the ink storing pipe 4 is pulled by the other hand, when the total length of the ink storing pipe 4 and the ink absorbing pipe 6 is longest, the pulling is stopped, the ink absorbing pipe 6 is taken out of the ink bottle, the ink absorbing opening 71 is sealed, the ink adding operation of the ink-adding type water pen is completed, the space between the ink absorbing pipe 6 and the ink storing pipe 4 is enlarged, so that the inside of the ink absorbing pipe reaches the negative pressure, and the ink is sucked from the ink absorbing opening 71 by the negative pressure.
A leakage-proof cover 711 matched with the ink absorbing port 71 is arranged on one side of the ink absorbing port 71. The leakage prevention cover 711 is mounted on the rear cover 7 by a hinge.
After the ink is sucked through the ink suction port 71, the ink suction port 71 is covered with the leakage-proof cover 711 to prevent the ink from flowing out of the ink suction port 71.
The working principle of the embodiment is as follows: after the ink in the ink-adding type water pen is used up, the leakage-proof cover 711 is opened to expose the ink-absorbing opening 71, the ink-absorbing pipe 6 is pushed towards the ink-storing pipe 4 until the lengths of the ink-absorbing pipe 6 and the ink-storing pipe 4 are shortest, the ink-absorbing pipe 6 and the rear end cover 7 are immersed into the ink bottle, the ink-absorbing opening 71 is soaked below the liquid level, at the moment, the ink-absorbing pipe 6 is fixed by hand, the ink-storing pipe 4 is pulled by the other hand, when the total length of the ink-storing pipe 4 and the ink-absorbing pipe 6 is longest, the pulling is stopped, the ink-absorbing pipe 6 is taken out of the ink bottle, the leakage-proof cover 711 is closed, the ink-absorbing opening 71 is sealed, the ink adding operation of the ink-adding type water pen is completed, the space between the ink-absorbing pipe 6 and the ink-storing pipe 4 is enlarged to enable the inner part to reach negative pressure, and the ink is.
Example two
Referring to fig. 2, the rear end cap 7 is further provided with a needle tube 9 communicated with the inside of the rear end cap 7. The needle tube 9 is rotatably connected in the ink suction port 71 of the rear cap 7. When the needle of the needle tube 9 is consistent with the orientation of the pen point, the ink absorbing port 71 is disconnected with the needle tube 9, and conversely, the ink absorbing port 71 is communicated with the needle tube 9.
When sucking ink, the needle tube 9 is rotated to make the needle head of the needle tube 9 opposite to the pen point, the ink sucking port 71 is communicated with the needle tube 9, the needle tube 9 is inserted into the ink bottle, the ink storage tube 4 is drawn to suck ink, after the suction is finished, the needle tube 9 is rotated to make the needle head of the needle tube 9 consistent with the pen point, at the moment, the ink sucking port 71 is closed, the ink is effectively prevented from being adhered to the outer wall of the ink sucking tube 6, and meanwhile, when the ink sucking tube 6 and the ink storage tube 4 are shortest, the ink can be prevented from completely penetrating into the ink bottle and being difficult to operate.
Referring to fig. 5, a hemispherical shaft sleeve 1 is fixedly connected to the inside of the ink suction port 71. And a rotating node 8 which is in running fit with the shaft sleeve 1 is connected in the shaft sleeve 1. A needle tube 9 is embedded in one side of the rotating node 8.
Referring to fig. 6, a sleeve ink inlet 12 communicated with the ink absorbing port 71 is penetrated through one side of the sleeve 1 facing the ink absorbing port 71. The shaft sleeve 1 is correspondingly provided with clamping grooves 11 with the same size as the outer diameter of the needle tube 9 along the two sides of the length direction of the ink-adding type water-based pen.
Referring to fig. 2, 4 and 7, a needle tube ink outlet 81 communicated with the needle tube 9 is formed on a central axis of the rotation node 8 perpendicular to the length direction of the needle tube 9. When the needle of the needle tube 9 is aligned with the nib of the ink-refillable pen, the opening of the needle tube ink outlet 81 is arranged in the opposite direction to the center of the rear cap 7.
The needle tube 9 is turned over, the rotating node 8 rotates, the direction of the needle head of the needle tube 9 is opposite to the direction of the pen point of the ink-adding type water-based pen, at the moment, the opening of the needle tube ink outlet 81 on the rotating node 8 faces the ink inlet 12 of the shaft sleeve and is communicated with the ink inlet 12 of the shaft sleeve, ink absorption can be carried out, otherwise, the opening of the needle tube ink outlet 81 on the rotating node 8 faces the ink absorption port 71 in an opposite direction, and one part of the rotating node 8 opposite to the needle tube ink outlet 81 blocks the ink inlet 12 of the shaft sleeve, so that ink leakage is prevented.
Referring to fig. 3, the rear end cap 7 has a limiting groove 72 for engaging with the needle tube 9 and extending along the length direction of the ink-feeding type water-based pen from the center of the ink-sucking port 71. The depth of the limiting groove 72 is smaller than the wall thickness of the rear end cover 7.
When the needle tube 9 absorbs ink, the tube body is clamped in the limiting groove 72, and after the ink is absorbed, the tube body is also clamped in the limiting groove 72, so that the needle tube 9 is further stabilized.
When ink is sucked, the needle tube 9 is rotated, the rotation node 8 rotates, the opening of the ink outlet 81 of the needle tube on the rotation node 8 faces the ink inlet 12 of the shaft sleeve, the ink sucking port 71, the ink outlet 81 of the needle tube and the ink inlet 12 of the shaft sleeve are communicated, the needle tube 9 is inserted into an ink bottle, the ink storage tube 4 is pulled to suck ink, after the ink is sucked, the needle tube 9 is rotated, the rotation node 8 rotates, the opening of the ink outlet 81 of the needle tube on the rotation node 8 faces the reverse direction of the ink inlet 12 of the shaft sleeve, the ink inlet 12 of the shaft sleeve is blocked by the rotation node 8, the ink outlet 81 of the needle tube is separated from the ink inlet 12 of the shaft sleeve, at the moment, the ink sucking port 71 is closed, the ink is effectively prevented from being adhered to the outer wall of the ink sucking tube 6, and meanwhile, when the ink sucking tube 6 and the ink storage tube 4.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
The above embodiments only show the embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and for those skilled in the art, a plurality of modifications and improvements can be made without departing from the concept of the present invention, and these modifications and improvements all belong to the protection scope of the present invention.
Claims (7)
1. The ink-adding type water pen comprises a fiber ink guiding core, capillary fins and an ink storage tube; the front end of the ink storage tube is provided with a capillary fin; one end of the fiber ink-guiding core is inserted into the capillary fin, and the other end of the fiber ink-guiding core is led out to the pen point, and the fiber ink-guiding core is characterized in that: the ink-adding type water pen also comprises a piston, an ink suction pipe and a rear end cover; the piston is adhered to the tail end of the ink storage tube; the ink suction pipe is sleeved outside the rear section pipe body of the ink storage pipe; the piston is in sliding sealing fit with the inner wall of the ink suction pipe; a through hole for communicating the ink suction pipe with the ink storage pipe is formed in the center of the piston; the rear end cover is clamped at the tail end of the ink absorption pipe; and the rear end cover is provided with a through ink absorption port.
2. The refillable fountain pen of claim 1, wherein: one side of the ink sucking port is provided with a leakage-proof cover matched with the ink sucking port; the leakage-proof cover is arranged on the rear end cover through a hinge.
3. The refillable fountain pen of claim 1, wherein: the rear end cover is also provided with a needle tube communicated with the interior of the rear end cover; the needle tube is rotatably connected in an ink absorption port of the rear end cover; when the needle head of the needle tube and the pen point face the same direction, the ink absorption port is disconnected with the needle tube, otherwise, the ink absorption port is communicated with the needle tube.
4. The refillable fountain pen of claim 3, wherein: a hemispherical shaft sleeve is fixedly connected in the ink absorbing port; a rotating node which is in rotating fit with the shaft sleeve is connected in the shaft sleeve; the needle tube is embedded in one side of the rotating node.
5. The refillable fountain pen of claim 4, wherein: a shaft sleeve ink inlet communicated with the ink absorption port is formed in one side, facing the ink absorption port, of the shaft sleeve in a penetrating manner; the two sides of the shaft sleeve along the length direction of the ink-adding type water-based pen are correspondingly provided with clamping grooves with the same size as the outer diameter of the needle tube.
6. The refillable fountain pen of claim 5, wherein: a needle tube ink outlet communicated with the needle tube is formed in a central axis of the rotating node perpendicular to the length direction of the needle tube; when the needle head of the needle tube and the pen point of the ink-adding type water-based pen face the same direction, the opening of the ink outlet of the needle tube faces the reverse direction of the center of the rear end cover.
7. The refillable fountain pen of claim 3, wherein: the rear end cover takes the center of the ink absorbing port as a starting point and penetrates through a limiting groove which is connected with the needle tube in a clamping manner along the length direction of the ink-adding type water-based pen; the depth of the limiting groove is smaller than the wall thickness of the rear end cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020090324.XU CN211710458U (en) | 2020-01-16 | 2020-01-16 | Ink-adding type water pen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020090324.XU CN211710458U (en) | 2020-01-16 | 2020-01-16 | Ink-adding type water pen |
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| Publication Number | Publication Date |
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| CN211710458U true CN211710458U (en) | 2020-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020090324.XU Expired - Fee Related CN211710458U (en) | 2020-01-16 | 2020-01-16 | Ink-adding type water pen |
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| CN (1) | CN211710458U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115302950A (en) * | 2022-07-25 | 2022-11-08 | 嘉兴市禾丰印刷包装有限公司 | Printing machine for improving image-text printing quality |
-
2020
- 2020-01-16 CN CN202020090324.XU patent/CN211710458U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115302950A (en) * | 2022-07-25 | 2022-11-08 | 嘉兴市禾丰印刷包装有限公司 | Printing machine for improving image-text printing quality |
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Granted publication date: 20201020 |