Voice score changing device for piano

Abstract

The utility model discloses a voice music score turning device for piano belongs to music field, including the fixed plate of music score of placing music score and being the casing structure, the earphone of transmission voice, receive earphone signal and control page turning page turning subassembly. The utility model has the advantages compared with prior art: the main mode of this device is changed for negative pressure vacuum adsorption from the gyro wheel, in order to guarantee the stability when adsorbing, set the rebounder between telescopic electromagnet and rectangular suction cup, and after moving, the paper will be in rectangular suction cup breaking adsorption, automatically cover on the last page, again by L -shaped presser plate compression, avoid falling, and this page turning mode is more stable compared to the traditional turning mode, and when turning the book, can guarantee that the situation of multiple pages is not turned.

Description

Technical Field

[0001] This utility model relates to the field of music, specifically to a voice-activated music notation device for a piano. Background Technology

[0002] In the current music field, the piano is often used as an important instrument for music enlightenment education because of its wide range, ease of learning and intuitive keyboard layout. In order to make it convenient for playing and so that turning the pages of the sheet music does not affect the performance, the sheet music is usually placed on a special sheet music turning device.

[0003] Existing piano music turning devices typically consist of a music score holder, a headset for transmitting voice, and a page-turning component that receives the headset signal and controls the page turning. In order to avoid missing voice commands, some music turning devices also have the ability to recognize musical notes. They use a miniature camera on the player to photograph and analyze the music score. When the player encounters a page that is about to be turned to the bottom, the device will actively trigger the page turning function based on the data captured by the miniature camera.

[0004] Existing page-turning devices typically use rollers to turn pages and levers to move pages to the other side, such as the automatic page turner with application number 201811195653.4. While this method can quickly turn pages, the rollers may tear A4 sheet music or roll up multiple sheets at once due to their sudden and rapid rotation. Furthermore, since the rollers are located inside the sheet music, they can obstruct the view during use. Utility Model Content

[0005] The technical problem this invention aims to solve is that existing piano voice-activated page-turning devices are prone to tearing the paper or obstructing the view when turning pages.

[0006] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a piano voice page turning device, including a sheet music fixing plate with a shell structure for holding the sheet music, an earphone for transmitting voice, a page turning component for receiving earphone signals and controlling page turning, the page turning component including a rotating pressing component and a roller pressing component for pressing the left and right edges of the sheet music, a negative pressure page turning component for pressing above the sheet music, and a control system for receiving earphone signals and driving the negative pressure page turning component to move horizontally;

[0007] The height of the rotary pressing assembly, the roller pressing assembly, and the negative pressure page turning assembly are all controlled by an electric telescopic rod. A T-shaped rectangular slider is welded below the electric telescopic rod of the rotary pressing assembly and the roller pressing assembly. A rectangular groove corresponding to the T-shaped rectangular slider is provided above the sheet music fixing plate. A fixing pad connected by bolts is provided on the bottom surface of the T-shaped rectangular slider.

[0008] The output shaft of the electric telescopic rod of the rotary pressing assembly is provided with an L-shaped pressure plate that is driven to rotate by a servo motor. The L-shaped pressure plate passes through the top surface of the output shaft of the electric telescopic rod, and the output shaft of the servo motor passes through the side wall of the L-shaped pressure plate and the output shaft of the electric telescopic rod.

[0009] The output shaft of the electric telescopic rod of the roller pressing assembly is provided with a roller connecting plate, and a roller rebounder is provided on the opposite side of the output shaft of the electric telescopic rod of the roller connecting plate. A roller is welded on the output shaft of the roller rebounder.

[0010] The output shaft of the electric telescopic rod of the negative pressure page-turning assembly is provided with a negative pressure connecting plate. On the opposite side of the output shaft of the electric telescopic rod of the negative pressure connecting plate, there are telescopic electromagnets and negative pressure rebounders welded in sequence. The output shaft of the negative pressure rebounder is provided with a rectangular suction cup with multiple negative pressure suction ports inside. Above the negative pressure connecting plate, there is a vacuum pump that generates suction force for the rectangular suction cup and a pneumatic switch that controls the suction force of the rectangular suction cup. Below the base of the electric telescopic rod of the negative pressure page-turning assembly, there is a linear motor servo guide rail connected by a bolt structure.

[0011] As an improvement, the sheet music holder is equipped with a removable battery for power supply inside its housing.

[0012] As an improvement, one side of the sheet music fixing plate is equipped with a linear motor trajectory controller that is connected via a buckle and a USB interface.

[0013] As an improvement, the sheet music fixing plate is provided with a clamping groove in the middle position to hold the spine of the sheet music, and the inside of the clamping groove is fitted with an elastic slot that is stuck on the spine of the sheet music. The bottom surface of the clamping groove is provided with a baffle to prevent the sheet music from sliding up and down.

[0014] As an improvement, both the roller connecting plate and the negative pressure connecting plate are connected to the top of the electric telescopic rod output shaft of the roller pressing assembly and the negative pressure page turning assembly via bolts.

[0015] As an improvement, the track of the linear motor servo guide is connected to the sheet music fixing plate by a bolt structure, and the sheet music fixing plate is provided with several rows of pre-drilled holes for the linear motor servo guide to facilitate the adjustment of the sheet music height.

[0016] The advantages of this invention compared to existing technologies are as follows: This device changes the main method of turning pages from rollers to negative pressure vacuum adsorption. To ensure stability during adsorption, a rebound device is set between the telescopic electromagnet and the rectangular suction cup. After the movement is completed, the paper will automatically cover the previous page after the rectangular suction cup stops adsorption, and then be pressed by the L-shaped pressure plate to prevent it from falling off. This page turning method is more stable than the traditional page turning method, and it can ensure that multiple pages are not turned when turning pages. Attached Figure Description

[0017] Figure 1 This is a general structural diagram of a voice-activated music flipping device for pianos according to this utility model.

[0018] Figure 2 yes Figure 1 Enlarged view of point A.

[0019] Figure 3 This is a rear view of the sheet music fixing plate of a voice-activated sheet music turning device for pianos according to this utility model.

[0020] Figure 4 This is a front sectional view of the overall structure of a voice-activated music flipping device for pianos according to this utility model.

[0021] Figure 5 This is a left sectional view of the overall structure of a voice-activated music flipping device for pianos according to this utility model.

[0022] As shown in the figure: 1. Sheet music fixing plate; 11. Clamping slot; 12. Elastic slot; 2. Earphone; 3. Page turning assembly; 31. Rotary pressing assembly; 311. Electric telescopic rod; 312. T-shaped rectangular slider; 313. Rectangular slide; 314. Fixing pad; 315. Servo motor; 316. L-shaped pressure plate; 32. Roller pressing assembly; 321. Roller connecting plate; 322. Roller rebounder; 323. Roller; 33. Negative pressure page turning assembly; 331. Negative pressure connecting plate; 332. Telescopic electromagnet; 333. Negative pressure rebounder; 334. Rectangular suction cup; 335. Vacuum pump; 336. Pneumatic switch; 337. Linear motor servo guide rail; 34. Control system; 4. Removable battery; 5. Linear motor trajectory controller. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings.

[0024] As per the instruction manual Figure 1 , 2 As shown in Figures 3, 4, and 5, the existing piano voice-activated sheet music turning device includes a sheet music fixing plate 1, which is a shell structure for holding the sheet music, a headset 2 for transmitting voice, and a page-turning component 3 for receiving signals from the headset 2 and controlling the page turning. The page-turning component 3 is controlled to perform corresponding page-turning actions by special commands transmitted through the headset 2. In order to ensure that the sheet music does not fall apart during the page-turning process, a clamping groove 11 for holding the spine of the sheet music is provided in the middle of the sheet music fixing plate 1. The inside of the clamping groove 11 is an elastic slot 12 that is stuck on the spine. The elastic slot 12 is mostly made of highly elastic rubber material. In order to prevent the sheet music from slipping along the elastic slot 12, a baffle is provided on the bottom surface of the clamping groove 11 to prevent the sheet music from sliding up and down.

[0025] To ensure stability when turning pages, the page-turning component 3 includes a rotating pressing component 31 and a roller pressing component 32 that press the left and right edges of the sheet music, a negative pressure page-turning component 33 that presses above the sheet music, and a control system 34 that receives signals from the headset 2 and drives the negative pressure page-turning component 33 to move horizontally.

[0026] The heights of the rotary pressing assembly 31, the roller pressing assembly 32, and the negative pressure page turning assembly 33 are all controlled by the electric telescopic rod 311. T-shaped rectangular sliders 312 are welded below the electric telescopic rods 311 of the rotary pressing assembly 31 and the roller pressing assembly 32. A rectangular groove 313 corresponding to the T-shaped rectangular slider 312 is provided above the sheet music fixing plate 1. A fixing washer 314 connected by bolts is provided on the bottom surface of the T-shaped rectangular slider 312.

[0027] The output shaft of the electric telescopic rod 311 of the rotary pressing assembly 31 is provided with an L-shaped pressure plate 316 driven to rotate by a servo motor 315, and the L-shaped pressure plate 316 passes through the top surface of the output shaft of the electric telescopic rod 311, while the output shaft of the servo motor 315 passes through the L-shaped pressure plate 316 and the side wall of the output shaft of the electric telescopic rod 311.

[0028] The output shaft of the electric telescopic rod 311 of the roller pressing assembly 32 is provided with a roller connecting plate 321, and a roller rebounder 322 is provided on the opposite side of the output shaft of the electric telescopic rod 311 of the roller connecting plate 321. A roller 323 is welded on the output shaft of the roller rebounder 322.

[0029] To facilitate the control of the various devices in this apparatus, a linear motor trajectory controller 5 is provided on one side of the sheet music fixing plate 1, which is connected via a buckle and a USB interface. The linear motor trajectory controller 5 is also used to input control data of each device into the control system 34 so that collisions will not occur during the movement.

[0030] To facilitate the adjustment of the height of the electric telescopic rods 311 to fit the thickness of the sheet music, each electric telescopic rod 311 needs to be adjusted before use. This ensures that the roller 323 below the roller rebounder 322 in the roller pressing assembly 32 presses against the lower right edge of the sheet music, guaranteeing that the sheet music is pressed down without affecting the single-page extraction during transfer after the rectangular suction cup 334 has picked up the pages. Similarly, when the telescopic electromagnet 332 of the negative pressure page turning assembly 33 reaches its maximum extension, it ensures that the negative pressure rebounder 333 does not exceed its telescopic length while ensuring that it does not affect the suction of the rectangular suction cup 334. Likewise, after the electric telescopic rod 311 of the left-side rotating pressing assembly 31 is adjusted, it ensures that the L-shaped pressure plate 316 can be stably pressed against the lower left corner of the sheet music after rotation.

[0031] To facilitate the maintenance and disassembly of each electric telescopic rod 311, the roller connecting plate 321 and the negative pressure connecting plate 331 are both connected to the top of the output shaft of the electric telescopic rod 311 of the roller pressing assembly 32 and the negative pressure page turning assembly 33 by bolts.

[0032] To facilitate the adjustment of the travel distance of the linear motor servo guide rail 337, a scale is usually engraved on the top of the sheet music fixing plate 1. This allows for the adjustment of the back-and-forth track spacing of the linear motor servo guide rail 337 via the linear motor track controller 5. In order to accommodate sheet music of different heights, the top of the sheet music fixing plate 1 is provided with several rows of track pre-drilled holes for the linear motor servo guide rail 337 to facilitate the adjustment of the track position of the linear motor servo guide rail 337.

[0033] In practical implementation, when using this device, first, the spine of the sheet music is inserted into the slot 12, with the bottom of the spine resting on the baffle. Then, the height of each electric telescopic rod 311 is adjusted as described above to ensure it does not interfere with the normal page-turning action. To prevent the servo motor 315 from overloading when the L-shaped pressure plate 316 presses on the sheet music, the servo motor 315 is a pressure-sensitive servo motor. Both the L-shaped pressure plate 316 and the roller 323 press on the edge of the sheet music, and the downward pressure of the roller 323 does not affect the rectangular suction... The suction force of disc 334 is adjusted to facilitate the sheet music being pulled out of roller 323. Then, vacuum pump 335 and pneumatic switch 336 are activated to suck up the sheet music paper. The linear motor servo guide rail 337 is then moved quickly to the left along the track. While the linear motor is moving, servo motor 315 drives L-shaped pressure plate 316 to rise until it reaches the set position on the left. Then, pneumatic switch 336 is turned off, so that the flipped sheet music falls to the left side of the sheet music. Finally, L-shaped pressure plate 316 is pressed down again, and linear motor servo guide rail 337 is reset. The page-turning motion is initiated by voice commands transmitted from headset 2.

[0034] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A piano music page-turning device, comprising a music sheet holder (1) having a shell structure for holding the music sheet, an earpiece (2) for transmitting voice, and a page-turning component (3) for receiving signals from the earpiece (2) and controlling page turning, characterized in that: The page-turning component (3) includes a rotating pressing component (31) and a roller pressing component (32) that press the left and right edges of the sheet music, a negative pressure page-turning component (33) that presses above the sheet music, and a control system (34) that receives signals from the headset (2) and drives the negative pressure page-turning component (33) to move. The heights of the rotary pressing assembly (31), the roller pressing assembly (32), and the negative pressure page turning assembly (33) are all controlled by an electric telescopic rod (311). T-shaped rectangular sliders (312) are welded below the electric telescopic rods (311) of the rotary pressing assembly (31) and the roller pressing assembly (32). A rectangular groove (313) corresponding to the T-shaped rectangular slider (312) is provided above the sheet music fixing plate (1). The bottom surface of the T-shaped rectangular slider (312) is provided with a fixing washer (314) connected by bolts. The output shaft of the electric telescopic rod (311) of the rotary pressing assembly (31) is provided with an L-shaped pressure plate (316) driven to rotate by a servo motor (315), and the L-shaped pressure plate (316) passes through the top surface of the output shaft of the electric telescopic rod (311), and the output shaft of the servo motor (315) passes through the side wall of the L-shaped pressure plate (316) and the output shaft of the electric telescopic rod (311); The output shaft of the electric telescopic rod (311) of the roller pressing assembly (32) is provided with a roller connecting plate (321), and a roller rebounder (322) is provided on the opposite side of the output shaft of the electric telescopic rod (311) of the roller connecting plate (321), and a roller (323) is welded on the output shaft of the roller rebounder (322). The output shaft of the electric telescopic rod (311) of the negative pressure page-turning assembly (33) is provided with a negative pressure connecting plate (331), and a telescopic electromagnet (332) and a negative pressure rebounder (333) are welded sequentially on the lower side opposite to the output shaft of the electric telescopic rod (311) of the negative pressure connecting plate (331). The output shaft of the negative pressure rebounder (333) is provided with a rectangular suction cup (334) with multiple negative pressure suction ports inside. Above the negative pressure connecting plate (331) is a vacuum pump (335) that generates suction force for the rectangular suction cup (334) and a pneumatic switch (336) that controls the suction force of the rectangular suction cup (334). Below the base of the electric telescopic rod (311) of the negative pressure page-turning assembly (33) is a linear motor servo guide rail (337) connected by a bolt structure.

2. The piano voice-activated music flipping device according to claim 1, characterized in that: The sheet music fixing plate (1) has a removable battery (4) inside its housing for power supply.

3. The piano voice-activated music flipping device according to claim 1, characterized in that: The sheet music fixing plate (1) is provided with a linear motor trajectory controller (5) connected by a buckle and a USB interface on one side.

4. The piano voice-activated music flipping device according to claim 1, characterized in that: The sheet music fixing plate (1) has a clamping groove (11) for clamping the spine of the sheet music in the middle position, and the inside of the clamping groove (11) has an elastic slot (12) that is stuck on the spine. The bottom surface of the clamping groove (11) is provided with a baffle to prevent the sheet music from sliding up and down.

5. A voice-activated music flipping device for a piano according to claim 1, characterized in that: Both the roller connecting plate (321) and the negative pressure connecting plate (331) are connected to the top of the output shaft of the electric telescopic rod (311) of the roller pressing assembly (32) and the negative pressure page turning assembly (33) by bolts.

6. A voice-activated music flipping device for a piano according to claim 1, characterized in that: The track of the linear motor servo guide rail (337) is connected to the sheet music fixing plate (1) by bolt structure, and the sheet music fixing plate (1) is provided with several rows of track reserved holes for the linear motor servo guide rail (337) to facilitate the adjustment of the sheet music height.

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