CN106601214B

CN106601214B - Mechanical music box with changeable music

Info

Publication number: CN106601214B
Application number: CN201611148399.3A
Authority: CN
Inventors: 李月琴; 王浩; 王建防
Original assignee: Beijing Union University
Current assignee: Beijing Union University
Priority date: 2016-12-13
Filing date: 2016-12-13
Publication date: 2020-08-25
Anticipated expiration: 2036-12-13
Also published as: CN106601214A

Abstract

The invention relates to a mechanical music box with variable music, which comprises a roller (1) and a control device, wherein a plurality of cylindrical holes are arranged on the outer circumferential surface of the roller (1) in the radial direction in an array structure mode, adjustable bulge assemblies are arranged in the cylindrical holes, and the adjustable bulge assemblies are connected with the control device. Compared with the prior art, the invention has the beneficial effects that: the fixed type bulge structure on the existing music box roller is further improved into the adjustable type bulge assembly, and the telescopic position of the bulge in the adjustable type bulge assembly relative to the surface of the roller is adjusted in real time through the control device according to different music, so that the music is more convenient and faster to replace, the original intention and habit of people are better met, and the music can be replaced at any time according to personal preference.

Description

Mechanical music box with changeable music

Technical Field

The invention relates to a mechanical music box, in particular to a mechanical music box with variable music.

Background

The Music Box (Music Box) is a mechanical Musical instrument, which was invented by the meter maker Anto in Switzerland in 1796, the Music can be played automatically by rotating the chain ring in the Box. The music box mainly comprises cylinder and reed two parts, and its theory of operation is that the surface is provided with a plurality of little bellied cylinders by the clockwork spring and rotates, works as the reed is stirred along with the cylinder rotation to the reed position to the arch, and the reed takes place vibrations and makes sound afterwards, stir the reed and refer to slowly lift up its process of putting down suddenly again earlier. The reed of the music box is made of a large steel plate which is cut into thin strips with different lengths. The cylinder is equivalent to the music book, welds a plurality of bumps that have certain distribution law on the cylinder be equipped with the sheetmetal near the bump and be the reed, when the cylinder is at the uniform velocity rotation, the bump is swept from the edge of reed, stirs the row of reed that the length is different through the bump of different positions to make the reed can send different musical notes. Therefore, when the drum rotates one circle, a piece of music with fixed melody is played synchronously. It can be seen that the existing music box has the technical defects that: because the salient points are fixedly welded on the roller, the music tracks played by the salient points are fixed and invariable.

Chinese utility model patent ZL201620068257.5 discloses a music box with changeable music, which comprises a spring, a sound tube, a bump and a sound board, wherein the sound tube is divided into a plurality of small rollers, and the small rollers are provided with grooves; the screw with nut can be fixed in the groove, and the small roller has a dial on the side. Each reed with different length on the soundboard corresponds to a small roller, and the dial can be used for determining the relative position of the screw; the clockwork spring produces power and drives the surface and have bellied sound section of thick bamboo at the uniform velocity and rotate, can stir the reed of soundboard when different screws pass through and send different sound and play out the melody promptly, when needs change the song, dismantles the position of changing the little drum of sound section of thick bamboo on the screw, adds or reduces the screw and assembles just can change the song again. The utility model discloses an overcome the unable shortcoming that changes the song of music box in the past, can let people just can change the song easily after through reading the description and the relevant note parameter comparison table that the manufacturer provided. However, the technical solution of the utility model for changing the song is to use the screw rod of the screw 10 to stretch out to replace the protrusion 3 in the prior art, so as to change the position and the number of the protrusion 3, thereby realizing the purpose of changing the song. However, this technical scheme's overall structure is complicated, and the working procedure of changing the song is loaded down with trivial details, and inconvenient user's operation specifically is: firstly, the sound cylinder needs to be disassembled so as to adjust the position of the screw on the small cylinder according to the changed tracks; secondly, the number of screws on the small cylinder is properly added or reduced according to different purposes of changing the curvature; finally, the number of the screws which are matched with the new curved object and the screws which extend out of the small cylinders are reassembled, and then the curved object can be replaced. Obviously, the technical scheme is very inconvenient to replace the tracks and needs to be improved urgently.

Chinese patent No. ZL97192167.9 discloses a music box comprising various modular components (1 to 16) which can be mounted without screws between two half-shells (1) closed by two half-cases (15); a spring plate made of notes one note by one note embedded in a spring seat (1 m, 1 n) is lifted by lifting cams (6 a) made by pressing from one or two rollers (6) equipped with a drum and a spring (4); the tightening rack (8), the possible external force lever (9) and the flywheel (14) arranged on the axis (II-II) of the front (AV) and rear (AR) surfaces, act under the effect of the rotating centrifugal force, making it possible to produce linear beats and speeds of the music. However, the structure of the invention is complex, and the replacement of the music cannot be realized, so that improvement is needed.

Disclosure of Invention

In order to solve the technical defects of the existing music box, the invention provides a technical scheme for synchronously changing the telescopic position of a bulge on a roller according to different input music so as to realize the music variability of the music box, and the specific scheme is as follows:

a mechanical music box with variable music comprises a roller and a control device, wherein a plurality of cylindrical holes are arranged on the outer circumferential surface of the roller in an array structure mode in the radial direction, adjustable convex components are arranged in the cylindrical holes, and the adjustable convex components are connected with the control device.

Preferably, the adjustable protrusion assembly comprises a protrusion and a rotating shaft, and a return spring and a protrusion pushing device are fixedly installed between the protrusion and the rotating shaft.

In any of the above solutions, preferably, the pushing protrusion device adopts a reciprocating linear motion mechanism.

In any of the above aspects, preferably, the top surface of the protrusion is a circular arc surface, and the bottom surface thereof is a plane.

In any of the above aspects, preferably, the control device comprises a microprocessor.

In any of the above schemes, preferably, the microprocessor employs a single chip microcomputer or an embedded system.

In any of the above aspects, preferably, the reciprocating linear motion mechanism is a crank link mechanism.

In any of the above aspects, preferably, the reciprocating linear motion mechanism is a rack and pinion mechanism.

In any of the above aspects, preferably, the reciprocating linear motion mechanism is a cam mechanism.

In any of the above aspects, preferably, the reciprocating linear motion mechanism is a worm gear mechanism.

In any of the above aspects, preferably, the reciprocating linear motion mechanism is a ball screw mechanism.

In any of the above embodiments, preferably, the reciprocating linear motion mechanism is a timing belt mechanism.

In any of the above schemes, preferably, the single chip microcomputer includes an I/O interface, and the I/O interface is configured to control the rows of adjustable protrusion assemblies.

In any of the above schemes, preferably, the microprocessor includes parsing music software, the parsing music software parses out corresponding musical notes according to a composition manner of a music format file input to the microprocessor through a serial port, and the microprocessor corresponds the musical notes and the I/O interfaces one to one, so as to push the corresponding protrusions to extend out of the surface of the drum or to be retracted to a position flush with the surface of the drum or lower than the surface of the drum at a certain time.

In any of the above embodiments, preferably, the music format file is a Midi format file.

In any of the above schemes, preferably, the serial port is connected to a peripheral device through a USB to serial device.

In any of the above aspects, preferably, the control device includes a power supply.

In any of the above aspects, preferably, a mechanical spring is included.

Preferably, in any of the above aspects, a reed is included.

Compared with the prior art, the invention has the beneficial effects that: the fixed type salient point structure on the existing music box roller is further improved into the adjustable type protruding component, and the telescopic position of the protrusion in the adjustable type protruding component relative to the surface of the roller is adjusted in real time through the control device according to different music, so that the music is more convenient and faster to replace, the original intention and habit of people are better met, and the music can be replaced at any time according to personal preference.

Drawings

FIG. 1 is a schematic workflow diagram of a preferred embodiment of a mechanical music box with variable composition according to the present invention;

FIG. 2 is a schematic view of the drum and its adjustable boss assembly of the embodiment of FIG. 1 of the mechanical music box with variable music in accordance with the present invention;

FIG. 3 is a schematic view of the adjustable projection assembly of the embodiment of FIG. 2 in a position flush with the surface of the roller for a musical composition-altering mechanical music box according to the present invention;

fig. 4 is a schematic view of the position of the adjustable bump assembly in the embodiment of fig. 2 pushed up by the pushing bump device and protruding out of the surface of the roller according to the mechanical music box with changeable music in accordance with the present invention.

Description of reference numerals:

1, rolling a roller; 2, protruding; 3, rotating a shaft; 4, a return spring; 5 pushing the projection means.

Detailed Description

The embodiment is only a preferred technical solution, wherein the components and the connection relation involved in the embodiment are not limited to the following embodiment described in the embodiment, and the arrangement and the connection relation of the components in the preferred technical solution may be arbitrarily arranged and combined to form a complete technical solution.

As shown in fig. 1-4, a mechanical music box with variable music comprises a roller 1 and a control device, wherein a plurality of cylindrical holes are arranged on the outer circumferential surface of the roller 1 in the radial direction in an array structure mode, adjustable convex components are arranged in the cylindrical holes, and the adjustable convex components are connected with the control device. The adjustable protruding component comprises a protrusion 2 and a rotating shaft 3, and a return spring 4 and a pushing protruding device 5 are fixedly installed between the protrusion 2 and the rotating shaft 3. The pushing convex device 5 adopts a reciprocating linear motion mechanism. The top surface of the bulge 2 is a circular arc surface, and the bottom surface is a plane. The control device comprises a microprocessor, and the microprocessor adopts a single chip microcomputer or an embedded system. The reciprocating linear motion mechanism can be arranged by adopting any one or the combination of a crank link mechanism, a gear rack mechanism, a cam mechanism, a worm and gear mechanism, a ball screw mechanism and a synchronous belt mechanism. The single chip microcomputer comprises an I/O interface, and the I/O interface is arranged to control the adjustable convex assemblies in rows. The microprocessor comprises analysis music software, corresponding musical notes are analyzed by the analysis music software according to the composition mode of a music format file input into the microprocessor through a serial port, the musical notes are in one-to-one correspondence with the I/O interfaces, and therefore the corresponding bulges 2 are pushed to extend out of the surface of the roller 1 or shrink to be at the same level with the surface of the roller 1 or be lower than the surface of the roller 1 at a certain moment. The music format file adopts a Midi format file. The serial port is connected with the peripheral through a USB-to-serial port device. The control device includes a power source. Including mechanical springs and reeds.

The working principle of the invention is as follows: the position of the protrusion 2 on the roller 1 according to the present invention is adjustable, that is, the position of the protrusion 2 is different according to the musical notes of the inputted music and can be adjusted to a position higher than the surface of the roller 1 or even with the surface of the roller or lower than the surface of the roller 1 by the control device, respectively, and the protrusion 2 can be extended from the surface of the roller 1 or retracted to the surface of the roller 1 or changed to a position below the surface by a microprocessor according to the inputted musical score. A plurality of bulges 2 are orderly arranged on the outer circle surface of the whole roller 1 in an array mode according to the requirement of playing music, the number of the actually arranged bulges 2 depends on the complexity and the accuracy of the played music, and each bulge 2 is controlled by a microprocessor to stretch out or shrink. The working process of the invention is as follows: firstly, inputting any one music into the microprocessor; and secondly, the microprocessor sends out a control instruction through the control device according to the input music to enable each bulge 2 to perform stretching or retracting action at corresponding time, wherein the stretched bulges 2 can stir the corresponding reeds to make sound, so that the music is played. When the user needs to change the music played by the music box, the music can be played by only replacing the music input into the microprocessor.

The design points of the roller 1 and the bulge 2 are as follows: the roller 1 provided with the adjustable convex components with the array arrangement structure is processed and assembled by a mechanical manufacturing method, wherein the bottom of each bulge 2 in the adjustable bulge component is fixedly connected with a return spring 4, the other end of each return spring 4 is fixedly connected on a rotating shaft 3 of the roller 1, the initial position of each return spring 4 is set as the position that the surface of each bulge 2 and the surface of the roller 1 are kept on the same plane, when a certain projection 2 needs to extend out of the surface of the roller 1, the microprocessor controls the projection pushing device 5 to push the projection 2 to extend out of the surface of the roller 1, then the extending projection 2 pushes the corresponding reed to make a sound during the rotation process of the roller 1, when the performance of the note is completed, the microprocessor gives a command to release the protrusion 2, and then the protrusion 2 returns to the initial position under the action of the return spring 4. The roller 1 is driven by the mechanical spring to rotate at a certain speed, and the protrusions 2 can extend out of the surface of the roller 1 and can also retract to the surface of the roller 1 or be lower than the surface of the roller 1.

The design key points of the invention for the microprocessor are as follows: a single chip microcomputer or an embedded system can be adopted, certain I/O interfaces of the single chip microcomputer are used for controlling a certain row of pushing convex devices 5, each pushing convex device 5 corresponds to a certain convex 2 in a row of convex 2 on the roller 1, and each pushing convex device 5 is controlled respectively. The single chip microcomputer or the embedded system analyzes the note to be played at the current moment and controls the corresponding protrusion pushing device 5 to push the protrusion 2 at the right time, so that the corresponding protrusion 2 extends out of the surface of the roller 1, the extending position needs to be kept and delayed for a period of time, then the protrusion 2 is released to retract to the initial position, and the technical effect of shifting the corresponding reed to make the note sound is achieved. The projection pushing device 5 controlled by the single chip microcomputer can adopt an I/O interface to control a connecting rod to push the projection 2, and also can adopt the I/O interface to control an electromagnetic valve to suck or open a contact to extend or retract the projection 2.

The microprocessor of the invention can analyze the music by adopting the following technical scheme: because the music of the Midi-format file can be downloaded on the internet, the input music can adopt the Midi-format file, the Midi-format file belongs to a binary file, the transmitted signal is not a sound signal, but instructions such as musical notes, control parameters and the like, at the moment, the microprocessor reads the input Midi-format file, analyzes the corresponding musical notes according to the composition mode of the Midi-format file, and the workflow of analyzing the music needs to be realized by writing corresponding software. After the music is analyzed, the microprocessor corresponds the musical notes to the I/O interfaces one by one, and finally realizes the technical effect of pushing the corresponding bulges 2 to perform telescopic action at a certain moment, so that the corresponding reeds are stirred to make the musical note sound.

The working principle of the invention for music input and replacement is as follows: the Midi format file of music to be played is input into the microprocessor through the serial port of the microprocessor, and the serial port can be connected with an external device through a USB-to-serial port device, so that the music can be input into the storage space of the microprocessor through a plug-and-play USB device (such as a USB flash disk). When the music is changed, only new music needs to be input, so that the music can be conveniently and quickly changed.

The technical problem of matching the rotation speed of the drum 1 with the time required by the microprocessor to push the protrusions 2 needs to be solved for implementing the present invention. Obviously, solving this technical problem is not difficult for those skilled in the art, and thus will not be described in detail.

The invention can completely keep the structural form of the existing music box in the actual design process, and only designs the existing roller 1 with fixed bulges into an adjustable bulge component with an array arrangement structure. The invention mainly comprises two parts, namely a roller 1, a bulge 2, a rotating shaft 3, a return spring 4, a pushing bulge device 5, a reed and other structural parts, and a control device with a microprocessor, wherein the structural parts are connected with the control device through an interface and a data line. Therefore, when the fixed songs are played, the roller 1 can still be driven to rotate by the mechanical spring, and the positions of the bulges 2 on the roller 1 relative to the surface of the roller 1 are kept fixed, namely, the fixed songs always correspond to the same song and do not need to be powered by a power supply; when the song needs to be replaced, a data connection channel between the control device with the power supply and the music box structural component can be opened to input new music, after the positions of the bulges 2 on the roller 1 are adjusted to the arrangement sequence corresponding to the new music, the control device can be closed, the positions of the bulges 2 are arranged and fixed to be the position sequence of the new music, and then the mechanical spring drives the roller 1 to rotate, so that the technical effect of playing the new music can be realized.

The microprocessor is a central processing unit consisting of one or a few large scale integrated circuits that perform the functions of the control unit and the arithmetic and logic unit. The microprocessor can complete the operations of fetching instruction, executing instruction, exchanging information with external memory and logic component, etc., and is the operation control portion of microcomputer, and can also be combined with memory and peripheral circuit chip to form microcomputer. Compared with the traditional central processing unit, the microprocessor has the advantages of small volume, light weight, easy modularization and the like. The microprocessor consists of an Arithmetic Logic Unit (ALU), accumulator and general register sets, a program counter (also called an instruction pointer), timing and control logic, data and address latches/buffers, and internal buses, of which the operator and controller are the main components. Depending on the field of application of microprocessors, microprocessors can be broadly classified into three categories: general purpose high performance microprocessors, embedded microprocessors and digital signal processors. In general, general purpose processors seek high performance, they are used to run general purpose software, equipped with a complete, complex operating system; the embedded microprocessor emphasizes high performance of processing specific application problems, is mainly used for running special programs oriented to specific fields, is provided with a lightweight operating system, and is mainly used for consumer appliances such as cellular phones, CD players and the like; the microcontroller has relatively low price and the largest demand on the microprocessor market, and is mainly used for automatic control equipment in the fields of automobiles, air conditioners, automatic machinery and the like.

The I/O interface is an electronic circuit (in the form of an IC chip or interface board) that has a number of special registers and corresponding control logic. It is a medium and bridge for exchanging information between the CPU and the I/O devices. The connection of the CPU to external devices, memory and data exchange needs to be implemented through interface devices, the former being called I/O interface and the latter being called memory interface. The memory usually works under the synchronous control of the CPU, and the interface circuit is simpler; since the variety of I/O devices is very wide and their corresponding interface circuits are different, the interface is conventionally referred to as an I/O interface. The basic functions are: selecting port address decoding equipment; providing the state information of the I/O equipment and decoding the command to the CPU; timing and corresponding time sequence control are carried out; buffering the transmitted data to eliminate differences in "timing" or data processing speed between the computer and the peripheral devices; providing compatibility transformation of related information formats between the computer and the peripheral equipment, and providing related electrical adaptation; the exchange of information between the CPU and the peripheral devices may be accomplished in an interrupt manner. The interface comprises a hardware circuit and a software programming two-part hardware circuit comprising a basic logic circuit, a port decoding circuit, an optional circuit and the like. The software programming includes an initialization program segment, a transfer mode processing program segment, a main control program segment program termination and exit program segment, an auxiliary program segment and the like.

Claims

1. A mechanical music box with variable music comprises a roller (1) and is characterized by also comprising a control device, a plurality of cylindrical holes are arranged in the radial direction of the outer circle surface of the roller (1) in an array structure, an adjustable bulge component is arranged in the cylindrical hole, the adjustable bulge component is connected with the control device and comprises a bulge (2) and a rotating shaft (3), a return spring (4) and a push bulge device (5) are fixedly arranged between the bulge (2) and the rotating shaft (3), the mechanical music box also comprises a mechanical spring, when playing fixed song, through mechanical clockwork spring drives cylinder (1) rotation, keeps protruding (2) on cylinder (1) for cylinder (1) surface position fixed unchangeable, corresponds same music promptly all the time and need not to use the power supply.

2. Mechanical music box with variable composition according to claim 1, characterized by the fact that the pushing-projecting means (5) are made with a reciprocating rectilinear motion mechanism.

3. Mechanical music box according to claim 1, characterised in that the top surface of the projection (2) is a circular arc and the bottom surface is a flat surface.

4. A mechanical music-altering octave box according to claim 1, wherein the control means comprises a microprocessor.

5. The mechanical music box of claim 4, wherein the microprocessor is a single chip or an embedded system.

6. The mechanical music box of variable musical composition of claim 2, wherein the reciprocating linear motion mechanism employs a crank link mechanism.

7. The mechanical music box of claim 2, wherein the reciprocating linear motion mechanism is a rack and pinion mechanism.

8. The mechanical music box of claim 2, wherein the reciprocating linear motion mechanism employs a cam mechanism.

9. The mechanical music box with changeable music of claim 2, wherein the reciprocating linear motion mechanism is a worm gear mechanism.

10. The mechanical music box of variable musical composition of claim 2, wherein the reciprocating linear motion mechanism employs a ball screw mechanism.

11. The mechanical music box of claim 2, wherein the reciprocating linear motion mechanism is a timing belt mechanism.

12. A mechanical music-altering music box according to claim 5, wherein the monolithic processor includes an I/O interface arranged to control the row of adjustable boss elements.

13. A musical composition-alterable mechanical music box according to claim 12, wherein the microprocessor comprises parsing music software for parsing out the corresponding musical notes in accordance with the composition of a music format file inputted to the microprocessor through a serial port, and the microprocessor maps the musical notes to I/O interfaces one-to-one so as to push the corresponding protrusions (2) to extend out of the surface of the drum (1) or retract to be flush with the surface of the drum (1) or lower than the surface of the drum (1) at a certain time.

14. A musical composition changeable mechanical music box according to claim 13, wherein the music format file is a Midi format file.

15. The mechanical music box of claim 13, wherein the serial port is connected to the external device through a USB to serial device.

16. A mechanical music-altering octave box according to claim 1, wherein the control means includes a power source.

17. A musical composition alterable mechanical music box according to claim 1, comprising a reed.