CN109895524A - A kind of automatic music leaf turner - Google Patents

A kind of automatic music leaf turner Download PDF

Info

Publication number
CN109895524A
CN109895524A CN201910201336.7A CN201910201336A CN109895524A CN 109895524 A CN109895524 A CN 109895524A CN 201910201336 A CN201910201336 A CN 201910201336A CN 109895524 A CN109895524 A CN 109895524A
Authority
CN
China
Prior art keywords
leaf turner
roller
spools
motor
automatic music
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910201336.7A
Other languages
Chinese (zh)
Inventor
梁志辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201910201336.7A priority Critical patent/CN109895524A/en
Publication of CN109895524A publication Critical patent/CN109895524A/en
Priority to PCT/CN2019/126554 priority patent/WO2020186852A1/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D9/00Bookmarkers; Spot indicators; Devices for holding books open; Leaf turners
    • B42D9/04Leaf turners
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D9/00Bookmarkers; Spot indicators; Devices for holding books open; Leaf turners
    • B42D9/04Leaf turners
    • B42D9/06Leaf turners having an arm reset after each operation
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10GREPRESENTATION OF MUSIC; RECORDING MUSIC IN NOTATION FORM; ACCESSORIES FOR MUSIC OR MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR, e.g. SUPPORTS
    • G10G7/00Other auxiliary devices or accessories, e.g. conductors' batons or separate holders for resin or strings

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Making Paper Articles (AREA)
  • Auxiliary Devices For Music (AREA)

Abstract

The present invention provides a kind of automatic music leaf turners, including two spools, motor for driving spool to rotate, for controlling the master board of motor operating, it is installed on two spools, the roller music score of displaying can be rolled between two spools, for fixed frame and color mark sensor that two spools is fixed, color mark sensor and motor are electrically connected with master board, roller music score includes what several were uniformly arranged, for showing the manuscript bag unit of the music score of Chinese operas, and roller music score is equipped with several colour codes used for positioning, each manuscript bag unit has its corresponding colour code, color mark sensor is correspondingly arranged in the movement routine of colour code.The present invention is arranged using Scroll, it not only can smoothly page turning back and forth, it is not easily susceptible to extraneous interference, the stability of device operation is high, and the present invention also passes through colour code and color mark sensor reaches mark location function, make this product when in use, each manuscript bag unit can be accurately presented on preset viewing position.

Description

A kind of automatic music leaf turner
Technical field
The present invention relates to music auxiliary equipment fields, more particularly, to a kind of automatic music leaf turner.
Background technique
Existing automatic music leaf turner is mainly pivoted, pivoted automatic music leaf turner vulnerable to extraneous interference, is turned over It is likely to occur certain page page turnings failure or even card page when page, stuck device is caused to be unable to continuous and effective operation, thus existing skill Art could be improved and improve.
Summary of the invention
Place in view of above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide a kind of automatic music leaf turners, using volume Shaft type ground page turning method not vulnerable to external interference, and improves and may cause page turning dislocation under such operational structures and cause spool Twine the phenomenon that page is stuck and musical score display page deviates and causes user that can not fully see manuscript.
In order to solve the above technical problems, this invention takes following technical schemes:
The present invention provides a kind of automatic music leaf turners, including two spools, the motor for driving spool to rotate, for controlling The master board of motor operating processed, is used for two the roller music score for being installed on two spools, can rolling displaying between two spools A spool fixed fixed frame and color mark sensor, the color mark sensor and motor are electrically connected with the master board, institute Stating roller music score includes manuscript bag unit that several are uniformly arranged, for showing the music score of Chinese operas, and on the roller music score Equipped with several colour codes used for positioning, each manuscript bag unit has its corresponding colour code, and the color mark sensor correspondence is set It is placed in the movement routine of the colour code.
Further, the automatic music leaf turner, the both ends of the spool, which are equipped with, is used to support and prevents roller happy The baffle of offset track when spectrum rolls.
In a preferred embodiment, the automatic music leaf turner, the motor are two, and one end of each spool is respectively provided with One motor.
In a preferred embodiment, the automatic music leaf turner, the color mark sensor are two, the manuscript bag unit Two sides be respectively provided with a colour code.
In a preferred embodiment, the automatic music leaf turner, the color mark sensor are one, the manuscript bag unit Middle part be equipped with a colour code.
In a preferred embodiment, the automatic music leaf turner further includes the shell for protecting internal structure, described outer Shell is equipped with impression window, and the spool, fixed frame, roller music score, motor and master board are assembled in the shell.
In a preferred embodiment, the automatic music leaf turner, the shell are equipped with the flip lid for replacing manuscript.
In a preferred embodiment, the automatic music leaf turner, the shell are equipped with the headlamp of plug-in type.
In a preferred embodiment, the automatic music leaf turner, the case back are equipped with convertible support frame.
In a preferred embodiment, the automatic music leaf turner further includes for showing that page-turning speed, the page number, the page occupy The electronic display of middle situation and key for adjusting page-turning speed, formfeed, the electronic display and key with it is described Master board electrical connection.
Compared to the prior art, a kind of automatic music leaf turner provided by the invention, including two spools, for drive spool turn Dynamic motor, the master board for controlling motor operating, the rolling for being installed in two spools, displaying being rolled between two spools Formula music score, for fixed frame and color mark sensor that two spools is fixed, the color mark sensor and motor with the master Control panel electrical connection, the roller music score includes manuscript bag unit that several are uniformly arranged, for showing the music score of Chinese operas, and institute Roller music score is stated equipped with several colour codes used for positioning, each manuscript bag unit has its corresponding colour code.The present invention Be arranged using Scroll, not only can smoothly page turning back and forth, be not easily susceptible to extraneous interference, the stability of device operation is high, And the present invention also passes through colour code and color mark sensor reaches mark location function, makes this product when in use, each manuscript Bag unit can be accurately presented on preset viewing position, be not in manuscript bag unit offset, cause user without The case where method is seen or can not all see the music score of Chinese operas.
Detailed description of the invention
Fig. 1 is an angled arrangement schematic diagram of the first preferred embodiment of automatic music leaf turner provided by the invention.
Fig. 2 is the schematic diagram of internal structure of the first preferred embodiment of automatic music leaf turner provided by the invention.
Fig. 3 is another angled arrangement schematic diagram of the first preferred embodiment of automatic music leaf turner provided by the invention.
Fig. 4 is the schematic diagram of internal structure of the second preferred embodiment of automatic music leaf turner provided by the invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and It is not used in the restriction present invention.
It should be noted that it can when component is referred to as on " being installed in ", " being fixed on " or " being set to " another component Directly on the other part or may be simultaneously present component placed in the middle.When a component be known as " being connected to " another Component, it can be directly to another component or may be simultaneously present component placed in the middle.
It is only relative concept each other it should also be noted that, the positional terms such as left and right, upper and lower in the embodiment of the present invention It or is to refer to, and should not be regarded as restrictive with the normal operating condition of product.
As shown in Figure 1, Figure 2, Figure 3 shows, the present invention provides a kind of automatic music leaf turners, including two spools (not to mark in figure Number), the motor 3 for driving spool to rotate, the master board 4 for controlling the operating of motor 3, be installed in two spools, can be in The roller music score 1 of displaying is rolled between two spools, for fixed frame 2 and color mark sensor 5 that two spools is fixed, the color Mark sensor 5 and motor 3 are electrically connected with the master board 4, that the roller music score 1 is uniformly arranged including several, For showing the manuscript bag unit 101 of the music score of Chinese operas, and the roller music score 1 is equipped with several colour codes 6 used for positioning, each Manuscript bag unit 101 has its corresponding colour code 6, and the color mark sensor 5 is correspondingly arranged in the movement routine of the colour code 6 On.Transparent bag film can be used in the manuscript bag unit 101, in use, printed manuscript is first put into manuscript in order In bag unit 101, product start when, master board 4 control motor 3 drive spool rotation, spool drive roller music score 1 just/ Backscrolling, when color mark sensor 5 detects next colour code 6, the driving of power machine 3 in master board 4, until main control Plate 4 receives next enabling signal.The enabling signal can carry out the pre-set clearance-type enabling signal of master board 4, The control signal that may be from external such as foot pedal etc, so that this product be made to achieve the effect that automatic roller page turning.This Invention is arranged using Scroll, not only can smoothly page turning back and forth, be not easily susceptible to extraneous interference, the stability of device operation Height, and the present invention also passes through colour code 6 and color mark sensor 5 reaches mark location function, makes this product when in use, each Manuscript bag unit 101 can be accurately presented on preset viewing position, be not in that manuscript bag unit 101 deviates, The case where causing user that can not see or can not all seeing the music score of Chinese operas;In addition, pass through the cooperation of colour code 6 and color mark sensor 5, It can also be achieved the number to each manuscript bag unit 101, when needing quickly overturning to a certain page, the present invention can be automatically fast Speed overturning further promotes the convenience of product operation to the page.
Further, in automatic music leaf turner provided by the invention, the both ends of the spool, which are equipped with, to be used to support and prevents The baffle 7 of offset track when only roller music score 1 rolls.The setting of the baffle 7 can be such that the rolling of roller music score 1 keeps It between two spools on the track of parallel rolling, does not deviate by track and position roller music score 1 can not, or even twine extremely in spool On, cause device that can not operate and causes the damage of the components such as manuscript, manuscript bag unit 101.Certainly, in order to guarantee spool turn Dynamic smooth flow, the upper and lower side are equipped with a bearing 8.
Preferably, the motor 3 is two, and one end of each spool is respectively set in automatic music leaf turner provided by the invention There is a motor 3.In the present embodiment, the bottom end of two spools is respectively provided with a motor 3, and being provided with for bi-motor 3 is conducive to ensure The accuracy of control is conducive to be further ensured that the accuracy that colour code 6 positions.
In the automatic music leaf turner that the first preferred embodiment of the invention provides, the color mark sensor 5 is two, described The two sides of manuscript bag unit 101 are respectively provided with a colour code 6, and the color mark sensor 5 is correspondingly arranged at the two of manuscript bag unit 101 Between side, manuscript bag unit 101 and spool.In the present embodiment, between the colour code 6 is set between the manuscript bag unit 101 Every place lower part, in order to rationally utilize space, save the cost, the motor 3, master board 4 are set on the roller music score 1 Bottom.The setting of double color mark sensors 5 is conducive to the accuracy for being further ensured that positioning, meanwhile, when there is a color mark sensor 5 when can not work, another color mark sensor 5 can still guarantee effective progress of device operating.When it is implemented, colour code can To be printed directly on roller music score, certainly, the case where colour code is set on manuscript bag unit two sides are directed to, it can be in manuscript bag unit Two sides one transparent mark card pouch is respectively set, by the mode of color chart, (colour code is arranged on color chart colour code, color chart Pattern-recognition effect it is good, be placed on mark card pouch in can also protect colour code to a certain extent, prevent colour code directly expose In the external world) it is fixed in transparent mark card pouch, to be fixed on roller music score.
As shown in figure 4, another situation, the automatic music leaf turner that the second preferred embodiment of the invention provides, the color Marking sensor 5 is one, and the middle part of the manuscript bag unit 101 is equipped with a colour code 6 by bottom, correspondingly, the colour code passes Sensor 5 is also correspondingly arranged at the middle part of manuscript bag unit 101 by bottom.Such setting can reduce the use of zero device, favorably In reduction production cost.
Please continue to refer to Fig. 1 and Fig. 3, preferably, the automatic music leaf turner that the first preferred embodiment of the invention provides further includes For protecting the shell 9 of internal structure, the shell 9 is equipped with impression window, the spool, fixed frame 2, roller music score 1, Motor 3 and master board 4 are assembled in the shell 9.
Preferably, the shell 9 is equipped with the flip lid for replacing manuscript in automatic music leaf turner provided by the invention 10, the flip lid 10 is located at the upper ends of shell 9, so as to user replaces at any time/install manuscript.
Preferably, in automatic music leaf turner provided by the invention, the headlamp of also settable plug-in type on the shell 9 14, in the present embodiment, there are two the settings of headlamp 14, guarantees illuminating area, and detachable, using USB connection mould Formula grafting, when use, are inserted on the USB interface on shell 9, while the settable multiple gears of headlamp 14, are existed by setting Button 1401 on lamp cap is adjusted, and light source, bright optional hommization setting can be provided for user, is conducive to promote good use Family experience.
More preferably, the back of the shell 9 is additionally provided with convertible support frame 11, is used to support this product and lies in desktop On, the use of music easel can not be needed in many cases, further increase the convenience of this product.
More preferably, automatic music leaf turner provided by the invention further includes for showing page-turning speed, the page number, the page situation placed in the middle The electronic display 12 of (positioning calibration) and key 13 for adjusting page-turning speed, formfeed, the electronic display 12 and are pressed Key 13 is electrically connected with the master board 4.Obviously, disclosed product structure through the invention, those skilled in the art can Plug-in is preset in master board 4, makes user by the operation of the information and key 13 that show in electronic display 12, it is real Now to the automation control of automatic music leaf turner, for example the adjusting of automatic music leaf turning speed, the page turning waiting time, quickly jump to certain one page Deng which is not described herein again.
In conclusion in the use of the present invention, printed manuscript is put into order in manuscript bag unit, product starting When, master board controls the rotation of motor driven spool, and spool drives roller music score positive/negative to rolling, when color mark sensor is examined When measuring next colour code, the driving of power machine in master board, until master board receives next enabling signal.This is opened Dynamic signal can carry out the pre-set clearance-type enabling signal of master board, also may be from the control of external such as foot pedal etc Signal processed, so that this product be made to achieve the effect that automatic roller page turning.The present invention is arranged using Scroll, not only can be steady Ground page turning back and forth is not easily susceptible to extraneous interference, and the stability of device operation is high, and the present invention also passes through colour code and colour code passes Sensor reaches mark location function, makes this product when in use, each manuscript bag unit can accurately be presented on and set in advance On fixed viewing position, is not in the offset of manuscript bag unit, causes user that can not see or can not all see the music score of Chinese operas Situation;In addition, passing through the cooperation of colour code and color mark sensor, it can also be achieved the number to each manuscript bag unit, work as needs Quickly when overturning to a certain page, the present invention can be quickly overturn automatically to the page, further promote the convenience of product operation.
Meanwhile in automatic music leaf turner provided by the invention, the both ends of the spool, which are equipped with, to be used to support and prevents to roll The baffle of offset track when dynamic formula music score rolls.The setting of the baffle can make the rolling of roller music score be maintained at two spools Between parallel rolling track on, do not deviate by track and position roller music score can not, or even twine extremely on spool, cause to fill Set the damage that can not operate and cause the components such as manuscript, manuscript bag unit.Certainly, in order to guarantee spool rotation smooth flow Property, the upper and lower side is equipped with a bearing.
It, can according to the technique and scheme of the present invention and its hair it is understood that for those of ordinary skills Bright design is subject to equivalent substitution or change, and all these changes or replacement all should belong to the guarantor of appended claims of the invention Protect range.

Claims (10)

1. a kind of automatic music leaf turner, including two spools, the motor for driving spool to rotate, the master for controlling motor operating It control panel and is installed on two spools, the roller music score of displaying can be rolled between two spools, which is characterized in that further include being used for By the fixed frame and color mark sensor that two spools are fixed, the color mark sensor and motor are electrically connected with the master board It connects, the roller music score includes manuscript bag unit that several are uniformly arranged, for showing the music score of Chinese operas, and the roller is happy Spectrum is equipped with several colour codes used for positioning, and the color mark sensor is correspondingly arranged in the movement routine of the colour code.
2. automatic music leaf turner according to claim 1, which is characterized in that the both ends of the spool be equipped be used to support and The baffle of offset track when preventing roller music score from rolling.
3. automatic music leaf turner according to claim 2, which is characterized in that the motor is two, one end of each spool Equipped with motor.
4. automatic music leaf turner according to claim 3, which is characterized in that the color mark sensor is two, the manuscript The two sides of bag unit are respectively provided with a colour code.
5. automatic music leaf turner according to claim 3, which is characterized in that the color mark sensor is one, the manuscript The middle part of bag unit is equipped with a colour code.
6. automatic music leaf turner according to claim 4 or 5, which is characterized in that further include for protecting the outer of internal structure Shell, the shell are equipped with impression window, and the spool, fixed frame, roller music score, motor and master board are assembled on institute It states in shell.
7. automatic music leaf turner according to claim 6, which is characterized in that the shell is equipped with for replacing turning over for manuscript Lid.
8. automatic music leaf turner according to claim 6, which is characterized in that the shell is equipped with the headlamp of plug-in type.
9. automatic music leaf turner according to claim 6, which is characterized in that the case back is equipped with convertible support frame.
10. automatic music leaf turner according to claim 4 or 5, which is characterized in that further include for showing page-turning speed, page Code, the electronic display of page situation placed in the middle and the key for adjusting page-turning speed, formfeed, the electronic display and key It is electrically connected with the master board.
CN201910201336.7A 2019-03-18 2019-03-18 A kind of automatic music leaf turner Pending CN109895524A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201910201336.7A CN109895524A (en) 2019-03-18 2019-03-18 A kind of automatic music leaf turner
PCT/CN2019/126554 WO2020186852A1 (en) 2019-03-18 2019-12-19 Automatic sheet music page turner for sheet music

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910201336.7A CN109895524A (en) 2019-03-18 2019-03-18 A kind of automatic music leaf turner

Publications (1)

Publication Number Publication Date
CN109895524A true CN109895524A (en) 2019-06-18

Family

ID=66952277

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910201336.7A Pending CN109895524A (en) 2019-03-18 2019-03-18 A kind of automatic music leaf turner

Country Status (2)

Country Link
CN (1) CN109895524A (en)
WO (1) WO2020186852A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020186852A1 (en) * 2019-03-18 2020-09-24 梁志辉 Automatic sheet music page turner for sheet music

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201128295Y (en) * 2007-12-26 2008-10-08 陈安果 Page-turning device for musicbook
WO2012065307A1 (en) * 2010-11-19 2012-05-24 Wu Dongjie Method and system for achieving online foil-stamping of variable information based on digital printing system
CN103879172A (en) * 2012-12-20 2014-06-25 董长明 Intelligent music score automatic page turning device
CN204315221U (en) * 2014-12-30 2015-05-06 倪欣悦 There is the music stand of automatic music leaf turning function
CN204587428U (en) * 2014-05-09 2015-08-26 常熟市百联自动机械有限公司 A kind of company rolls up plastic-box packaging machine
CN206532585U (en) * 2017-03-16 2017-09-29 咸阳师范学院 A kind of piano music case
TWM572557U (en) * 2018-09-04 2019-01-01 林家妍 Automatic scrolling structure of music score
CN210101098U (en) * 2019-03-18 2020-02-21 梁志辉 Automatic music score turning device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2802647Y (en) * 2005-06-10 2006-08-02 赵恒博 Automatic music stand
CN202332254U (en) * 2011-11-29 2012-07-11 杨慧星 Constant-speed and mobile device for playing scores
CN203573636U (en) * 2013-10-16 2014-04-30 西安敏海电子科技有限公司 Electronic keyboard capable of turning music automatically
CN206574467U (en) * 2017-02-27 2017-10-20 山西大同大学 A kind of automatic-lifting type piano notation reading device
CN207758300U (en) * 2017-12-26 2018-08-24 东莞市汪工机械设备有限公司 Specification tag location compounding machine
CN109895524A (en) * 2019-03-18 2019-06-18 梁志辉 A kind of automatic music leaf turner

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201128295Y (en) * 2007-12-26 2008-10-08 陈安果 Page-turning device for musicbook
WO2012065307A1 (en) * 2010-11-19 2012-05-24 Wu Dongjie Method and system for achieving online foil-stamping of variable information based on digital printing system
CN103879172A (en) * 2012-12-20 2014-06-25 董长明 Intelligent music score automatic page turning device
CN204587428U (en) * 2014-05-09 2015-08-26 常熟市百联自动机械有限公司 A kind of company rolls up plastic-box packaging machine
CN204315221U (en) * 2014-12-30 2015-05-06 倪欣悦 There is the music stand of automatic music leaf turning function
CN206532585U (en) * 2017-03-16 2017-09-29 咸阳师范学院 A kind of piano music case
TWM572557U (en) * 2018-09-04 2019-01-01 林家妍 Automatic scrolling structure of music score
CN210101098U (en) * 2019-03-18 2020-02-21 梁志辉 Automatic music score turning device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020186852A1 (en) * 2019-03-18 2020-09-24 梁志辉 Automatic sheet music page turner for sheet music

Also Published As

Publication number Publication date
WO2020186852A1 (en) 2020-09-24

Similar Documents

Publication Publication Date Title
US20060219106A1 (en) Printing device and ultraviolet irradiation apparatus
JP4931749B2 (en) Air conditioner indoor unit
EP1278117A3 (en) Printing control apparatus and display method therefor
CN109895524A (en) A kind of automatic music leaf turner
EP1923747A3 (en) Image Forming Apparatus and Facsimile Apparatus
CN210101098U (en) Automatic music score turning device
US20100107461A1 (en) Scrolling display device and method
CN204894813U (en) Automatic correct printer
JP4864130B2 (en) Air conditioner indoor unit
CN108257489A (en) A kind of planar design three-dimensional model shows instructional device
KR20130080522A (en) Advertising board including roll film
KR101184075B1 (en) Lcd touch display having screen
CN203344511U (en) Printing top cover integrating display screen and paper easily-packaging structure
CN209168634U (en) A kind of penetrating display screen advertising signboard device of stealth
GB1591174A (en) Typewriters
CN2377650Y (en) Vertical slide-plate type advertiser
CN2501130Y (en) Hand-writing apparatus for training calligraphy
CN207579362U (en) A kind of multifunctional printing touch one-piece machine
CN215256908U (en) Video fan
CN208655183U (en) A kind of no backlight display screen
CN2146030Y (en) Document auxiliary reader
CN218366917U (en) Positioning device for corrugated board screen printing
CN211338107U (en) Paper feeding mechanism of specification folding machine
JPH05238097A (en) Printer
CN210516072U (en) Propaganda picture and text board for safety campus of colleges and universities

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination