CN108909301B - Ink grinding device for writing brush character teaching - Google Patents
Ink grinding device for writing brush character teaching Download PDFInfo
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- CN108909301B CN108909301B CN201810802233.1A CN201810802233A CN108909301B CN 108909301 B CN108909301 B CN 108909301B CN 201810802233 A CN201810802233 A CN 201810802233A CN 108909301 B CN108909301 B CN 108909301B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L27/00—Ink stands
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43M—BUREAU ACCESSORIES NOT OTHERWISE PROVIDED FOR
- B43M99/00—Subject matter not provided for in other groups of this subclass
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Abstract
The invention discloses an ink liquid grinding device for Chinese brush character teaching, which comprises a bearing base, four support frames, an ink grinding mechanism, an ink stone fixing mechanism, a guide support, a cross beam, a first telescopic cylinder, a piston rod, a movable plate, a guide sliding sleeve, a motor fixing seat and a negative pressure sucker, wherein the support frames are fixedly arranged at the bottom of the bearing base and made of stainless steel materials; the ink stone fixing device is reasonable and simple in structure and convenient to use, automatic ink grinding of ink in writing brush character teaching is achieved, the writing brush character teaching quality is improved, the labor intensity of writing brush character teaching and learning is reduced, ink grinding splashing is avoided, the ink stone is convenient to take out, the second moving seat and the extrusion plate are driven to move by rotating the adjusting screw rod, fixing of the ink stone in the fixing groove is achieved, ink grinding vibration is reduced by the aid of the spring, and the ink stone fixing device is high in practicability.
Description
Technical Field
The invention relates to the technical field of education and teaching equipment, in particular to an ink grinding device for Chinese calligraphy teaching.
Background
Along with attach importance to traditional cultural education and teaching, writing brush word teaching has become one of course of middle school, primary school's teaching, the ink lapping of ink liquid needs to be carried out to writing brush word teaching in-process, but the ink liquid adopts manual ink lapping for the teaching of current writing brush word, it is consuming time longer, occupy the time of a large amount of classroom teaching, influence the learning quality of writing brush word teaching, and increase the intensity of labour of writing brush word teaching and study, the in-process of ink lapping, lead to the removal of inkstone easily, cause spilling of ink liquid even, influence the normal teaching of writing brush word, therefore, the practicality is relatively poor.
Disclosure of Invention
The invention aims to solve the problems that the conventional ink for Chinese calligraphy teaching is long in time consumption due to the fact that manual ink grinding is adopted, a large amount of classroom teaching time is occupied, learning quality of the Chinese calligraphy teaching is affected, labor intensity of the Chinese calligraphy teaching and learning is increased, ink stone is prone to moving in the ink grinding process, even ink is prone to being spilled out, normal teaching of the Chinese calligraphy is affected, and practicability is poor.
In order to solve the above problems, the present invention provides a technical solution:
an ink grinding device for teaching Chinese calligraphy comprises a bearing base, a support frame, an ink grinding mechanism, an ink stone fixing mechanism, a guide support, a cross beam, a first telescopic cylinder, a piston rod, a movable plate, a guide sliding sleeve, a motor fixing seat and a negative pressure sucker, wherein the support frame is fixedly installed at the bottom of the bearing base and is made of stainless steel materials, four support frames are arranged, the ink grinding mechanism is arranged at the top of the bearing base, the ink stone fixing mechanism is installed on the bearing base, the guide support is fixedly installed at two opposite ends of the top of the bearing base, the cross beam parallel to the bearing base is fixedly installed at the top of the guide support, the first telescopic cylinder is fixedly installed at the top of the cross beam, the output end of the first telescopic cylinder is fixedly connected with one end of the piston rod, and the other end of the piston rod is fixedly installed at the top of the movable plate, parallel arrangement between fly leaf and the bearing base, one side fixed connection of both ends and the direction sliding sleeve of fly leaf, the direction sliding sleeve cover is established on the guide bracket, the bottom fixed mounting of fly leaf has the motor fixing base, four the equal fixed mounting in bottom of support frame has the negative sucker, the negative sucker adopts the nitrile rubber material to make.
As a preferable technical scheme of the invention, the ink grinding mechanism comprises an ink grinding motor, a rotating shaft, two rotating plates, a connecting plate, a screw rod, a first moving seat, an ink grinding table and a rotating rocker, wherein the ink grinding motor is fixedly arranged on a motor fixing seat, the output end of the ink grinding motor is in transmission connection with one end of the rotating shaft through a coupling, the other end of the rotating shaft is fixedly connected with the rotating plate, the bottom of the rotating plate is provided with two connecting plates, the two connecting plates are respectively arranged at two ends of the rotating plate, the screw rod is arranged on the connecting plate, penetrates through the connecting plates and is in rotating connection with the connecting plates, the first moving seat is arranged on the screw rod between the two connecting plates, the screw rod penetrates through the first moving seat and is in threaded connection with the first moving seat, the ink grinding table is fixedly arranged at the bottom of the first moving seat, the ink grinding table is arranged in a circular shape, and a rotating rocker is fixedly mounted at one end of the screw rod.
As a preferred technical solution of the present invention, the inkstone fixing mechanism includes a fixing groove, a side slide rail, a slide seat, a fixing plate, a second telescopic cylinder, a transverse communication hole, a connecting member, a second moving seat, an adjusting screw, a fixing seat, and a pressing plate, the supporting base is provided with the fixing groove, the side slide rails are disposed on two opposite sides inside the fixing groove, the slide seat is slidably mounted on the side slide rails, the fixing plate is fixedly mounted on the slide seat, the bottom of the fixing plate is fixedly connected to an output end of the second telescopic cylinder, the transverse communication hole is disposed at one end of the fixing plate, the connecting member passes through the transverse communication hole, one end of the bottom of the connecting member is connected to the second moving seat, the adjusting screw passes through the second moving seat, the adjusting screw is threadedly connected to the second moving seat, and one end of the adjusting screw is rotatably mounted on the fixing seat, one side of bearing base is provided with logical groove, accommodate the lead screw's the other end passes the logical groove of bearing base one side, fixing base fixed mounting is in the bottom of fixed plate, one of connecting piece top is served fixed mounting and is had the stripper plate.
As a preferred technical solution of the present invention, a plurality of compression springs are fixedly installed inside the fixing groove.
As a preferable technical scheme of the invention, the adjusting screw rod is sleeved with an adjusting spring, and the adjusting spring is arranged on the adjusting screw rod between the bearing base and the second movable seat.
As a preferable technical scheme of the invention, the ink-stone grinding device is characterized in that the fixing plate is fixedly provided with the ink-stone, and the depth of the fixing groove is greater than the height of the ink-stone grinding device.
As a preferred technical scheme of the invention, the rotating rocker is sleeved with an anti-skid rubber sleeve.
As a preferable technical scheme of the invention, the top and the bottom of the side slide rail are both provided with a limiting plate.
The invention has the beneficial effects that:
the invention has reasonable and simple structure and convenient use, adds the ink to be ground into the ink stone, then places the ink stone on the fixed plate at the bottom of the fixed groove, then drives the movable plate to move downwards through the first telescopic cylinder and the piston rod, so that the ink grinding table on the ink stone fixed mechanism moves downwards into the ink stone, starts the ink grinding motor to rotate to drive the rotating shaft and the rotating plate to rotate, so that the ink grinding table on the rotating plate rotates and grinds the ink in the ink stone, thereby realizing the automatic ink grinding of the ink in the writing brush character teaching, not only improving the writing brush character teaching quality, but also reducing the labor intensity of the writing brush character teaching and learning, the screw rod and the first movable seat arranged on the ink grinding mechanism drive the screw rod to rotate through rotating the rotating rocker, so that the first movable seat on the screw rod can move left and right, thereby improving the ink grinding range and the ink grinding quality of the ink grinding table, and the side slide rail and the fixed plate arranged on the ink stone fixed mechanism, the fixing plate is driven to move on the side sliding rail through the second telescopic cylinder, so that the inkstone is located inside the fixing groove during ink grinding, the inkstone is ejected out of the fixing groove after ink grinding, ink grinding splashing is avoided, the inkstone is convenient to take out, the second moving seat and the extrusion plate are driven to move through rotating the adjusting screw rod, fixing of the inkstone in the fixing groove is achieved, vibration of ink grinding is reduced through the spring, and the practicability is higher.
Description of the drawings:
for ease of illustration, the invention is described in detail by the following detailed description and the accompanying drawings.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure at position A of the present invention;
fig. 3 is a schematic structural view of an ink-stone fixing mechanism of the invention;
fig. 4 is a schematic diagram of a fixing plate structure according to the present invention.
In the figure: 1. a bearing base; 2. a support frame; 3. an ink grinding mechanism; 31. an ink grinding motor; 32. a rotating shaft; 33. a rotating plate; 34. a connecting plate; 35. a screw rod; 36. a first movable base; 37. grinding an ink platform; 38. rotating the rocker; 4. an inkstone fixing mechanism; 41. fixing the groove; 42. a side slide rail; 43. a slide base; 44. a fixing plate; 45. a second telescopic cylinder; 46. a compression spring; 47. a transverse communication hole; 48. a connecting member; 49. a second movable base; 410. adjusting the screw rod; 411. a fixed seat; 412. a pressing plate; 413. adjusting the spring; 5. a guide bracket; 6. a cross beam; 7. a first telescopic cylinder; 8. a piston rod; 9. a movable plate; 10. a guide sliding sleeve; 11. a motor fixing seat; 12. and a negative pressure sucker.
The specific implementation mode is as follows:
as shown in fig. 1 to 4, the following technical solutions are adopted in the present embodiment: an ink grinding device for teaching of brush calligraphy comprises a bearing base 1, a support frame 2, an ink grinding mechanism 3, an inkstone fixing mechanism 4, guide supports 5, cross beams 6, first telescopic cylinders 7, a piston rod 8, a movable plate 9, a guide sliding sleeve 10, a motor fixing seat 11 and a negative sucker 12, wherein the support frame 2 is fixedly installed at the bottom of the bearing base 1, the support frame 2 is made of stainless steel materials, the number of the support frames 2 is four, the ink grinding mechanism 3 is arranged at the top of the bearing base 1, the inkstone fixing mechanism 4 is installed on the bearing base 1, the guide supports 5 are fixedly installed at two opposite ends of the top of the bearing base 1, the cross beams 6 arranged in parallel with the bearing base 1 are fixedly installed at the top of the guide supports 5, the first telescopic cylinders 7 are fixedly installed at the top of the cross beams 6, the output ends of the first telescopic cylinders 7 are fixedly connected with one end of the piston rod 8, the other end of piston rod 8 and the top fixed mounting of fly leaf 9, parallel arrangement between fly leaf 9 and the bearing base 1, one side fixed connection of both ends and direction sliding sleeve 10 of fly leaf 9, direction sliding sleeve 10 cover is established on guide bracket 5, the bottom fixed mounting of fly leaf 9 has motor fixing base 11, four the equal fixed mounting in bottom of support frame 2 has negative sucker 12, negative sucker 12 adopts the nitrile rubber material to make.
Wherein, the ink grinding mechanism 3 comprises an ink grinding motor 31, a rotating shaft 32, a rotating plate 33, two connecting plates 34, a screw rod 35, a first moving seat 36, an ink grinding table 37 and a rotating rocker 38, the ink grinding motor 31 is fixedly arranged on the motor fixing seat 11, the output end of the ink grinding motor 31 is in transmission connection with one end of the rotating shaft 32 through a coupling, the other end of the rotating shaft 32 is fixedly connected with the rotating plate 33, the bottom of the rotating plate 33 is provided with the two connecting plates 34, the two connecting plates 34 are respectively arranged at the two ends of the rotating plate 33, the screw rod 35 is arranged on the connecting plate 34, the screw rod 35 passes through the connecting plates 34 and is in rotating connection with the connecting plates 34, the first moving seat 36 is arranged on the screw rod 35 between the two connecting plates 34, the screw rod 35 passes through the first moving seat 36 and is in threaded connection with the first moving seat 36, the bottom of the first moving seat 36 is fixedly provided with an ink grinding table 37, the ink grinding table 37 is arranged in a circular shape, one end of the screw rod 35 is fixedly provided with a rotating rocker 38, the screw rod 35 is driven to rotate by rotating the rotating rocker 38, so that the first moving seat 36 on the screw rod 35 can move left and right, and the ink grinding range and the ink grinding quality of the ink grinding table are improved, the inkstone fixing mechanism 4 comprises a fixing groove 41, a side slide rail 42, a slide seat 43, a fixing plate 44, a second telescopic cylinder 45, a transverse communication hole 47, a connecting piece 48, a second moving seat 49, an adjusting screw 410, a fixing seat 411 and an extrusion plate 412, the supporting base 1 is provided with the fixing groove 41, the two opposite sides inside the fixing groove 41 are respectively provided with the side slide rail 42, the slide seat 43 is slidably arranged on the side slide rail 42, the slide seat 43 is fixedly provided with the fixing plate 44, and the bottom of the fixing plate (44) is fixedly connected with the output end of the second telescopic cylinder (45), one end of the fixed plate 44 is provided with a transverse communication hole 47, a connecting piece 48 penetrates through the transverse communication hole 47, one end of the bottom of the connecting piece 48 is connected with a second movable seat 49, an adjusting screw 410 penetrates through the second movable seat 49, the adjusting screw 410 is in threaded connection with the second movable seat 49, one end of the adjusting screw 410 is rotatably installed on a fixed seat 411, one side of the bearing base 1 is provided with a through groove, the other end of the adjusting screw 410 penetrates through the through groove on one side of the bearing base 1, the fixed seat 411 is fixedly installed at the bottom of the fixed plate 44, one end of the top of the connecting piece 48 is fixedly provided with a squeezing plate 412, the fixed plate 44 is driven by a second telescopic cylinder 45 to move on the side sliding rail 42, so that the inkstone is positioned in the fixed groove 41 during ink grinding, and is pushed out of the fixed groove 41 after ink grinding, thereby avoiding ink grinding and splashing, be convenient for the inkstone to take out, and remove seat 49 and stripper plate 412 through rotating accommodate the lead screw 410 drive second, realize the fixed to the inkstone in the fixed recess 41, the inside fixed mounting of fixed recess 41 has a plurality of compression spring 46, accommodate the lead screw 410 is gone up the cover and is established and install accommodate the spring 413, accommodate the spring 413 sets up on the accommodate the lead screw 410 between bearing base 1 and the second removal seat 49, and utilizes the spring to reduce the ink research vibrations, and the practicality is stronger, fixed mounting has the ink research inkstone on the fixed plate 44, the degree of depth of fixed recess 41 is greater than the height of ink research inkstone, rotate the cover on the rocker 38 and establish and install the anti-skidding rubber sleeve, the top and the bottom of side slide rail 42 all are provided with the limiting plate.
The using state of the invention is as follows: the invention has reasonable and simple structure and convenient use, adds the ink to be ground into the inkstone, then places the inkstone on the fixed plate 44 at the bottom of the fixed groove 41, then drives the movable plate 9 to move downwards through the first telescopic cylinder 7 and the piston rod 8, so that the ink grinding table 37 on the inkstone fixed mechanism 4 moves downwards into the inkstone, starts the ink grinding motor 31 to rotate to drive the rotating shaft 32 and the rotating plate 33 to rotate, so that the ink grinding table 37 on the rotating plate 33 rotates to grind the ink in the inkstone, thereby realizing the automatic ink grinding of the ink in the writing brush character teaching, not only improving the writing brush character teaching quality, but also reducing the labor intensity of the writing brush character teaching and learning, the screw 35 and the first movable seat 36 which are arranged on the ink grinding mechanism 3 drive the screw 35 to rotate through rotating the rotating rocker 38, so that the first movable seat 36 on the screw 35 can move left and right, thereby improving the ink grinding range and ink grinding quality of the ink grinding table, install side slide rail 42 and fixed plate 44 on inkstone fixed establishment 4, move on side slide rail 42 through second telescopic cylinder 45 drive fixed plate 44 for the inkstone is located the inside of fixed recess 41 during the ink grinding, and with the ejecting fixed recess 41 of inkstone after the ink grinding, avoid the ink grinding splash, the inkstone of being convenient for takes out, and move seat 49 and stripper plate 412 through rotating adjusting screw 410 drive second, realize the fixed to the inkstone in the fixed recess 41, and utilize the spring to reduce the ink grinding vibrations, the practicality is stronger.
While there have been shown and described what are at present considered to be the fundamental principles of the invention and its essential features and advantages, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (5)
1. The utility model provides an ink liquid grinder is used in teaching of writing brush word, includes bearing base (1), support frame (2), ink rubbing mechanism (3), inkstone fixed establishment (4), guide bracket (5), crossbeam (6), first telescopic cylinder (7), piston rod (8), fly leaf (9), direction sliding sleeve (10), motor fixing base (11) and negative sucker (12), its characterized in that: the ink-jet printer is characterized in that a support frame (2) is fixedly mounted at the bottom of the bearing base (1), the support frame (2) is made of stainless steel materials, four support frames (2) are arranged, an ink grinding mechanism (3) is arranged at the top of the bearing base (1), an ink stone fixing mechanism (4) is mounted on the bearing base (1), guide supports (5) are fixedly mounted at two opposite ends of the top of the bearing base (1), a cross beam (6) arranged in parallel with the bearing base (1) is fixedly mounted at the top of each guide support (5), a first telescopic cylinder (7) is fixedly mounted at the top of each cross beam (6), the output end of each first telescopic cylinder (7) is fixedly connected with one end of a piston rod (8), the other end of each piston rod (8) is fixedly mounted with the top of a movable plate (9), and the movable plates (9) and the bearing base (1) are arranged in parallel, the two ends of the movable plate (9) are fixedly connected with one side of the guide sliding sleeve (10), the guide sliding sleeve (10) is sleeved on the guide support (5), the bottom of the movable plate (9) is fixedly provided with a motor fixing seat (11), the bottoms of the four support frames (2) are respectively fixedly provided with a negative pressure sucker (12), and the negative pressure suckers (12) are made of nitrile rubber materials;
the inkstone fixing mechanism (4) comprises a fixing groove (41), side sliding rails (42), a sliding seat (43), a fixing plate (44), a second telescopic cylinder (45), transverse communication holes (47), a connecting piece (48), a second moving seat (49), an adjusting screw rod (410), a fixing seat (411) and an extrusion plate (412), wherein the fixing groove (41) is formed in the bearing base (1), the side sliding rails (42) are arranged on two opposite sides in the fixing groove (41), the sliding seat (43) is arranged on the side sliding rails (42) in a sliding mode, the fixing plate (44) is fixedly arranged on the sliding seat (43), the bottom of the fixing plate (44) is fixedly connected with the output end of the second telescopic cylinder (45), the transverse communication holes (47) are formed in one end of the fixing plate (44), and the connecting piece (48) penetrates through the transverse communication holes (47), one end of the bottom of the connecting piece (48) is connected with a second moving seat (49), an adjusting screw rod (410) penetrates through the second moving seat (49), the adjusting screw rod (410) is in threaded connection with the second moving seat (49), one end of the adjusting screw rod (410) is rotatably installed on a fixed seat (411), a through groove is formed in one side of the bearing base (1), the other end of the adjusting screw rod (410) penetrates through the through groove in one side of the bearing base (1), the fixed seat (411) is fixedly installed at the bottom of the fixed plate (44), and an extrusion plate (412) is fixedly installed at one end of the top of the connecting piece (48); a plurality of compression springs (46) are fixedly arranged in the fixing groove (41);
adjusting screw (410) go up the cover and establish adjusting spring (413), adjusting spring (413) set up on bearing base (1) and second remove adjusting screw (410) between seat (49).
2. The ink polishing apparatus for teaching chinese calligraphy according to claim 1, characterized in that: the ink grinding mechanism (3) comprises an ink grinding motor (31), a rotating shaft (32), a rotating plate (33), a connecting plate (34), a screw rod (35), a first moving seat (36), an ink grinding table (37) and a rotating rocker (38), wherein the ink grinding motor (31) is fixedly arranged on a motor fixing seat (11), the output end of the ink grinding motor (31) is in transmission connection with one end of the rotating shaft (32) through a coupler, the other end of the rotating shaft (32) is fixedly connected with the rotating plate (33), the bottom of the rotating plate (33) is provided with two connecting plates (34), the two connecting plates (34) are respectively arranged at two ends of the rotating plate (33), the screw rod (35) is arranged on the connecting plates (34), and the screw rod (35) penetrates through the connecting plates (34) and is in rotation connection with the connecting plates (34), a first movable seat (36) is installed on a screw rod (35) between the two connecting plates (34), the screw rod (35) penetrates through the first movable seat (36) and is in threaded connection with the first movable seat (36), an ink grinding table (37) is fixedly installed at the bottom of the first movable seat (36), the ink grinding table (37) is arranged in a circular shape, and a rotating rocker (38) is fixedly installed at one end of the screw rod (35).
3. The ink polishing apparatus for teaching chinese calligraphy according to claim 1, characterized in that: the ink-stone grinding machine is characterized in that an ink-stone grinding machine is fixedly installed on the fixing plate (44), and the depth of the fixing groove (41) is larger than the height of the ink-stone grinding machine.
4. The ink polishing apparatus for teaching chinese calligraphy according to claim 2, characterized in that: an anti-skid rubber sleeve is sleeved on the rotating rocker (38).
5. The ink polishing apparatus for teaching chinese calligraphy according to claim 3, wherein: limiting plates are arranged at the top and the bottom of the side sliding rail (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810802233.1A CN108909301B (en) | 2018-07-20 | 2018-07-20 | Ink grinding device for writing brush character teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810802233.1A CN108909301B (en) | 2018-07-20 | 2018-07-20 | Ink grinding device for writing brush character teaching |
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| Publication Number | Publication Date |
|---|---|
| CN108909301A CN108909301A (en) | 2018-11-30 |
| CN108909301B true CN108909301B (en) | 2021-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810802233.1A Active CN108909301B (en) | 2018-07-20 | 2018-07-20 | Ink grinding device for writing brush character teaching |
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| CN (1) | CN108909301B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112918168A (en) * | 2019-03-27 | 2021-06-08 | 林奇虎 | Application of ink grinding device for teaching |
| CN110254096A (en) * | 2019-04-23 | 2019-09-20 | 天津备东文具有限公司 | A kind of Chinese writing brush frame with protective capability |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100515801C (en) * | 2007-12-26 | 2009-07-22 | 张继祖 | Dynamic pressure flexible simulation ink making machine |
| CN102756594A (en) * | 2011-04-28 | 2012-10-31 | 上海市静安区第一中心小学 | Electric ink grinder |
| CN102963197B (en) * | 2012-12-10 | 2015-08-05 | 柴树文 | A kind of automatic ink-grinding machine |
| CN203142210U (en) * | 2013-04-08 | 2013-08-21 | 大连大学 | Multifunctional ink grinding device for traditional Chinese painting creation |
| CN103332051A (en) * | 2013-06-25 | 2013-10-02 | 无锡同春新能源科技有限公司 | Electric ink grinding machine using photovoltaic power generation as power supply |
| CN206067328U (en) * | 2016-07-04 | 2017-04-05 | 孙天鸿 | Imitative electric hand ink-grinding machine |
| CN207224918U (en) * | 2017-03-20 | 2018-04-13 | 云南彩霞科技有限公司 | A kind of Multifunctional inkstone |
| CN206839774U (en) * | 2017-06-28 | 2018-01-05 | 上海光和光学制造大丰有限公司 | A kind of high-precision lapping device |
| CN108189599A (en) * | 2017-12-25 | 2018-06-22 | 方正圆 | A kind of Language education grinds ink apparatus |
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2018
- 2018-07-20 CN CN201810802233.1A patent/CN108909301B/en active Active
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