Automatic tuning device and tuning method for stringed instrument

Abstract

The invention discloses an automatic tuning device and tuning method for a stringed musical instrument, and relates to the technical field of musical instrument tuning, and the automatic tuning device comprises a first shell and a second shell abutting against the first shell, one side of the second shell is fixedly connected with an extension plate, and a storage groove is formed in the position, corresponding to the extension plate, of one side of the first shell. The extension plate is movably arranged in the storage groove in a sleeved mode, and a driving mechanism is arranged in the second shell. The device can clamp and limit stringed instruments of different sizes through the movement of the first shell and the second shell, and can synchronously and rapidly adjust a plurality of strings at the same time, thereby effectively guaranteeing the automatic tuning effect of different stringed instruments and the rapid tuning efficiency of the plurality of strings.

Description

Technical Field

[0001] The invention relates to a musical instrument tuning technology, and in particular to an automatic tuning device and a tuning method for a stringed instrument. Background Art

[0002] Stringed instruments (such as guitars) need to be tuned before playing. Only when the sound of the instrument is standard can a good melody be played. Traditional tuning methods, in most cases, can only rely on the performer or tuner to adjust the instrument based on his or her experience and ears to distinguish the sound of the instrument. This will cause slight deviations in the pitch of the instrument. Therefore, it is necessary to develop a device that can accurately tune stringed instruments. By monitoring the sound of the instrument's strings in real time, the pitch of the instrument can be adjusted, thereby helping performers and tuners to quickly and accurately tune stringed instruments. Summary of the invention

[0003] The object of the present invention is to provide an automatic tuning device for stringed instruments to solve the above-mentioned deficiencies in the prior art.

[0004] In order to achieve the above-mentioned purpose, the present invention provides the following technical solution: an automatic tuning device for a string instrument, comprising a first shell and a second shell abutting the first shell, an extension plate being fixedly connected to one side of the second shell, a storage groove being provided on one side of the first shell corresponding to the extension plate, the extension plate being movably sleeved inside the storage groove, and a driving mechanism being provided inside the second shell.

[0005] Furthermore, the driving mechanism comprises a motor frame fixedly connected to the inside of the second shell, a stepper motor is fixedly connected to the motor frame, and an output shaft of the stepper motor is fixedly connected to the first bevel gear.

[0006] Furthermore, a threaded rod is fixedly connected to one side of the first shell, a movable through hole is opened at one side of the second shell corresponding to the threaded rod, and the threaded rod is movably sleeved inside the movable through hole.

[0007] Furthermore, a threaded sleeve is rotatably connected to one side of the movable through hole, a second bevel gear is fixedly connected to the threaded sleeve, and one side of the second bevel gear is meshed with the first bevel gear for transmission.

[0008] Furthermore, a plurality of driving motors are fixedly connected inside the first shell and the second shell respectively, the output shafts of the plurality of driving motors are fixedly connected to driving rods respectively, and the plurality of driving rods are fixedly connected to first pulleys respectively.

[0009] Furthermore, support plates are symmetrically fixedly connected to the first shell and the second shell, respectively, a plurality of support plates are respectively provided with mounting holes, a plurality of mounting holes are respectively movably sleeved with connecting rods, a second pulley is fixedly connected to one end of the connecting rods corresponding to the first pulley, a belt is transmission-connected between the outside of the second pulley and the first pulley, an adjustment sleeve block is fixedly connected to the other end of the connecting rods, and a control panel is fixedly connected to the top of the first shell.

[0010] Furthermore, a method for using an automatic tuning device for a stringed instrument is provided. Before tuning the stringed instrument, a self-checking program is started through a control panel (4). The self-checking program drives each drive motor (17) to drive the adjustment sleeve (14) to perform a complete rotation stroke, and at the same time detects the operating status of each transmission component, and displays the detection result on the control panel (4). If a fault occurs, an alarm is issued to prompt the user to perform maintenance, so as to ensure that the tuning device is in a normal working state before performing the tuning operation.

[0011] Furthermore, when the driving motor drives the adjusting sleeve to rotate and adjust the pitch of the stringed instrument, the rotation angle and torque of the adjusting sleeve are monitored in real time. If the rotation angle reaches a preset maximum adjustment angle or the torque exceeds a preset safety torque value, the driving motor is immediately stopped and an error message is displayed on the control panel to prevent damage to the stringed instrument or failure of the tuning device due to excessive adjustment.

[0012] Furthermore, the device also includes a sound sensor connected to the control panel. During the process of adjusting the pitch of the string instrument, the sound sensor continuously collects sound signals emitted by the string instrument and transmits them to the control panel. The control panel analyzes and processes the sound signals according to a preset audio analysis algorithm. When the pitch reaches the allowable error range of the target value, the corresponding drive motor is controlled to stop working to achieve precise tuning.

[0013] Furthermore, after the string instrument is tuned, the control panel automatically records various parameters of the tuning, including the initial pitch of each string, the adjusted pitch, the adjustment time, the number of the driving motor (17) used, and other information, and stores this information in a storage module inside the device for subsequent query and analysis by the user. At the same time, the control panel can provide the user with an analysis report on the trend of string instrument pitch changes and maintenance suggestions based on multiple tuning records.

[0014] Compared with the prior art, the automatic tuning device for stringed instruments provided by the present invention can not only clamp and limit stringed instruments of different sizes by moving the first shell and the second shell, but also can perform synchronous and rapid adjustment of multiple strings, thereby effectively ensuring the automatic tuning effect of different stringed instruments and the efficiency of rapid tuning of multiple strings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0016] Figure 1 A schematic diagram of the overall top-down stereoscopic structure provided by an embodiment of the present invention;

[0017] Figure 2 A schematic diagram of the overall bottom-up stereoscopic structure provided by an embodiment of the present invention;

[0018] Figure 3 A schematic diagram of a three-dimensional structure of a driving mechanism, a first housing, and a second housing provided in an embodiment of the present invention, viewed from above in partial cross section;

[0019] Figure 4 A schematic top view of a three-dimensional structure of a second housing provided in an embodiment of the present invention;

[0020] Figure 5 A schematic top view of the three-dimensional structure of a first shell provided in an embodiment of the present invention.

[0021] Description of reference numerals:

[0022] 1. First housing; 2. Second housing; 3. Extension plate; 4. Control panel; 5. Threaded rod; 6. Storage slot; 7. Threaded sleeve; 8. Second bevel gear; 9. Stepper motor; 10. First bevel gear; 11. Drive rod; 12. First pulley; 13. Linking rod; 14. Adjustment sleeve; 15. Second pulley; 16. Belt; 17. Drive motor. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0024] Example 1: Please refer to Figure 1-5 A string instrument automatic tuning device includes a first shell 1 and a second shell 2 abutting the first shell 1, an extension plate 3 is fixedly connected to one side of the second shell 2, a storage groove 6 is opened on one side of the first shell 1 corresponding to the extension plate 3, the extension plate 3 is movably sleeved inside the storage groove 6, and a driving mechanism is provided inside the second shell 2.

[0025] In this embodiment, the driving mechanism includes a motor frame fixedly connected to the inside of the second housing 2 , a stepper motor 9 is fixedly connected to the motor frame, and an output shaft of the stepper motor 9 is fixedly connected to a first bevel gear 10 .

[0026] In this embodiment, a threaded rod 5 is fixedly connected to one side of the first shell 1 , and a movable through hole is opened at one side of the second shell 2 corresponding to the threaded rod 5 , and the threaded rod 5 is movably sleeved inside the movable through hole.

[0027] In this embodiment, a threaded sleeve 7 is rotatably connected to one side of the movable through hole, a second bevel gear 8 is fixedly connected to the threaded sleeve 7, and one side of the second bevel gear 8 is meshed with the first bevel gear 10 for transmission.

[0028] In this embodiment, a plurality of drive motors 17 are fixedly connected inside the first shell 1 and the second shell 2 respectively, the output shafts of the plurality of drive motors 17 are fixedly connected to drive rods 11 respectively, and the plurality of drive rods 11 are fixedly connected to first pulleys 12 respectively.

[0029] In this embodiment, support plates are symmetrically fixedly connected to the first shell 1 and the second shell 2, and mounting holes are respectively opened on the multiple support plates. Linking rods 13 are movably sleeved on the multiple mounting holes, and one end of the multiple linking rods 13 is fixedly connected to the second pulley 15 corresponding to the first pulley 12, and a belt 16 is transmission-connected between the outside of the second pulley 15 and the first pulley 12, and the other ends of the multiple linking rods 13 are respectively fixedly connected to adjustment sleeve blocks 14, and the top of the first shell 1 is fixedly connected to a control panel 4.

[0030] In the present invention, before tuning the stringed instrument, the self-checking program is first started through the control panel 4. This self-checking program plays a vital role. It will orderly drive each drive motor 17 to drive the adjustment sleeve 14 to perform a complete rotation stroke. In this process, the precision sensor inside the device will closely monitor the operating status of each transmission component, including whether the tension of the belt 16 is stable, whether the meshing between the bevel gears is tight and smooth, whether the threaded transmission of the threaded sleeve 7 and the threaded rod 5 is normal, etc. Once any abnormality is detected, the relevant information will immediately display the detection results on the control panel 4 in clear text and warning icons. If there is a fault, the device will emit a loud and continuous alarm, and at the same time display the detailed fault location and possible causes on the control panel 4, prompting the user to perform maintenance. Only when the self-checking program confirms that the tuning device is in a completely normal working state, the subsequent tuning operation is allowed, which can greatly avoid tuning failure or damage to the stringed instrument due to problems with the device itself during the tuning process.

[0031] In the present invention, during the tuning process, when the drive motor 17 drives the adjustment sleeve 14 to rotate and adjust the pitch of the string instrument, the high-precision angle sensor and torque sensor will monitor the rotation angle and torque of the adjustment sleeve 14 in real time. Once the rotation angle reaches the preset maximum adjustment angle, it means that the pitch adjustment limit of the string instrument may be approached. If the rotation continues, the strings of the string instrument may be over-tightened or even broken. At this time, the device will immediately stop the operation of the drive motor 17 and display the error message "Adjustment angle exceeds the limit, please check the status of the string instrument" in a striking red font on the control panel 4. Similarly, when the torque exceeds the preset safety torque value, it means that a large resistance is encountered during the adjustment process, which may be caused by the adjustment parts of the string instrument being stuck. The device will also quickly stop the drive motor 17 and display the prompt "Torque is abnormal, please check the fault" on the control panel 4, effectively preventing damage to the string instrument or failure of the tuning device due to excessive adjustment, and ensuring the safety and stability of the tuning process.

[0032] In the present invention, the device also includes a high-sensitivity sound sensor connected to the control panel 4. In the process of adjusting the pitch of the string instrument, the sound sensor is like a keen ear, continuously collecting the sound signal emitted by the string instrument, and transmitting it to the control panel 4 through a high-speed and stable data line. The control panel 4 has a built-in advanced preset audio analysis algorithm, which can quickly and accurately analyze and process the sound signal. The algorithm is based on a complex audio frequency and waveform analysis model, and can accurately identify the difference between the current pitch and the target pitch. When the pitch gradually approaches the allowable error range of the target value, the control panel 4 will quickly issue a control instruction to stop the corresponding drive motor 17 from working, thereby achieving precise tuning, ensuring that the pitch of the string instrument can reach an extremely high precision standard and meet the performer's strict requirements for sound quality.

[0033] In the present invention, after the string instrument tuning is completed, the control panel 4 will automatically start the data recording and analysis program. It will record the various parameters of this tuning in detail, such as the initial pitch of each string, which can provide basic data for the subsequent analysis of the pitch stability of the string instrument; the adjusted pitch is used to evaluate the effect of tuning; the adjustment time is helpful to understand the efficiency of tuning; the number of the drive motor 17 used is convenient for tracing possible problems. This information will be safely stored in the large-capacity storage module inside the device, and the user can easily query and analyze these historical records through the operation interface on the control panel 4. At the same time, the device also has an intelligent analysis function, which can provide users with an analysis report on the trend of string instrument pitch changes based on multiple tuning records, using data statistics and trend analysis algorithms, such as whether there is a gradual shift in pitch, etc., and based on this, give corresponding maintenance suggestions, such as whether the strings need to be replaced, check the degree of wear of the adjustment parts, etc., to help users better maintain string instruments, extend their service life, and maintain good performance.

[0034] Working principle: when in use, the first shell 1 and the second shell 2 are placed on the upper rear side of the handle of the string instrument, and the adjustment sleeve 14 on the second shell 2 is correspondingly sleeved on the corresponding string instrument adjustment block, and the command is input through the control panel 4. After the command is input, the stepper motor 9 is started, and the stepper motor 9 drives the rotation of the first bevel gear 10 after starting. The rotation of the first bevel gear 10 is meshed with the second bevel gear 8 for transmission, and the rotation of the second bevel gear 8 drives the rotation of the threaded sleeve 7. The rotation of the threaded sleeve 7 drives the threaded rod 5 to move. The movement of the threaded rod 5 drives the first shell 1 to move slowly along the storage groove 6 through the extension plate 3, and the adjustment sleeve 14 on the other side is driven to move through the movement of the first shell 1, and the adjustment block on the other side of the string instrument is clamped and sleeved, so as to effectively adjust the size of different string instruments according to the clamping process;

[0035] After the adjustment blocks on both sides of the string instrument are limited, the tone adjustment setting is performed through the control panel 4, so as to control different drive motors 17 to start and run. The start of the drive motor 17 drives the first pulley 12 to rotate. The rotation of the first pulley 12 drives the second pulley 15 to rotate through the belt 16. The rotation of the second pulley 15 drives the rotation of the connecting rod 13, thereby driving the adjustment sleeve 14 to rotate. The rotation of the adjustment sleeve 14 performs the adjustment processing of the corresponding string instrument adjustment block.

[0036] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An automatic tuning device for a stringed instrument, comprising a first housing (1) and a second housing (2) abutting against the first housing (1), characterized in that: An extension plate (3) is fixedly connected to one side of the second shell (2); a storage groove (6) is provided on one side of the first shell (1) corresponding to the extension plate (3); the extension plate (3) is movably sleeved inside the storage groove (6); and a driving mechanism is provided inside the second shell (2).

2. The automatic tuning device for stringed instruments according to claim 1, characterized in that: The driving mechanism comprises a motor frame fixedly connected to the inside of the second housing (2), a stepper motor (9) being fixedly connected to the motor frame, and an output shaft of the stepper motor (9) being fixedly connected to a first bevel gear (10).

3. The automatic tuning device for stringed instruments according to claim 2, characterized in that: A threaded rod (5) is fixedly connected to one side of the first shell (1), and a movable through hole is opened at a position corresponding to the threaded rod (5) on one side of the second shell (2), and the threaded rod (5) is movably sleeved inside the movable through hole.

4. The automatic tuning device for stringed instruments according to claim 3, characterized in that: A threaded sleeve (7) is rotatably connected to one side of the movable through hole, a second bevel gear (8) is fixedly connected to the threaded sleeve (7), and one side of the second bevel gear (8) is meshed with the first bevel gear (10) for transmission.

5. The automatic tuning device for stringed instruments according to claim 1, characterized in that: A plurality of drive motors (17) are fixedly connected inside the first shell (1) and the second shell (2), respectively; output shafts of the plurality of drive motors (17) are fixedly connected to drive rods (11), respectively; and a first pulley (12) is fixedly connected to the plurality of drive rods (11).

6. The automatic tuning device for stringed instruments according to claim 5, characterized in that: The first shell (1) and the second shell (2) are symmetrically fixedly connected with support plates, a plurality of mounting holes are respectively opened on the support plates, and a plurality of mounting holes are movably sleeved with connecting rods (13), one end of the plurality of connecting rods (13) is fixedly connected with a second pulley (15) corresponding to the first pulley (12), a belt (16) is connected between the outside of the second pulley (15) and the first pulley (12) for transmission, and the other ends of the plurality of connecting rods (13) are respectively fixedly connected with an adjustment sleeve block (14), and the top of the first shell (1) is fixedly connected with a control panel (4).

7. A method for using the automatic tuning device for a stringed instrument according to any one of claims 1 to 6, characterized in that: Before tuning the stringed instrument, a self-checking program is first started through the control panel (4). The self-checking program drives each drive motor (17) to drive the adjustment sleeve (14) to perform a complete rotation stroke, and at the same time detects the operating status of each transmission component, and displays the detection result on the control panel (4). If there is a fault, an alarm is issued to prompt the user to perform maintenance, and the tuning operation is performed only after ensuring that the tuning device is in normal working condition.

8. The automatic tuning method for a stringed instrument according to claim 7, characterized in that: During the tuning process, when the driving motor (17) drives the adjusting sleeve (14) to rotate and adjust the pitch of the stringed instrument, the rotation angle and torque of the adjusting sleeve (14) are monitored in real time. If the rotation angle reaches a preset maximum adjustment angle or the torque exceeds a preset safety torque value, the operation of the driving motor (17) is immediately stopped and an error message is displayed on the control panel (4), thereby preventing damage to the stringed instrument or malfunction of the tuning device due to over-adjustment.

9. The automatic tuning method for a stringed instrument according to claim 7, characterized in that: The device also includes a sound sensor connected to the control panel (4); during the process of adjusting the pitch of the string instrument, the sound sensor continuously collects sound signals emitted by the string instrument and transmits the sound signals to the control panel (4); the control panel (4) analyzes and processes the sound signals according to a preset audio analysis algorithm; when the pitch reaches within an allowable error range of the target value, the corresponding drive motor (17) is controlled to stop working, thereby achieving precise tuning.

10. The automatic tuning method for a stringed instrument according to claim 7, characterized in that: After the string instrument is tuned, the control panel (4) automatically records various parameters of the tuning, including the initial pitch of each string, the adjusted pitch, the adjustment time, the number of the driving motor (17) used, and other information, and stores this information in a storage module inside the device for subsequent query and analysis by the user. At the same time, the control panel (4) can provide the user with an analysis report on the trend of string instrument pitch changes and maintenance suggestions based on multiple tuning records.

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