CN203205022U - Accordion with accordion boxes made of short carbon fiber reinforced resin matrix composite material - Google Patents
Accordion with accordion boxes made of short carbon fiber reinforced resin matrix composite material Download PDFInfo
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- CN203205022U CN203205022U CN 201320244858 CN201320244858U CN203205022U CN 203205022 U CN203205022 U CN 203205022U CN 201320244858 CN201320244858 CN 201320244858 CN 201320244858 U CN201320244858 U CN 201320244858U CN 203205022 U CN203205022 U CN 203205022U
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- accordion
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- keyboard
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- fiber reinforced
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Abstract
The utility model belongs to the field of production of accordions, and particularly to an accordion with accordion boxes made of short carbon fiber reinforced resin matrix composite material. The accordion comprises a keyboard, a bellows, a bass and an accordion cover, wherein the keyboard, the bellows and the bass are connected in sequence, the accordion cover is fixedly mounted on the keyboard, the keyboard consists of a keyboard sound box, keys and a keyboard sound changing device, and the keys and the keyboard sound changing device are mounted on the keyboard sound box; the bass consists of a bass sound box, bass beans and a bass sound changing device, and the bass beans and the bass sound changing device are mounted on the bass sound box. The accordion is characterized in that both the keyboard sound box and the bass sound box are integrally formed by short carbon fiber reinforced resin matrix composite material. The accordion with accordion boxes made of short carbon fiber reinforced resin matrix composite material has the advantages of being good in tone, light in weight, not easy to damage, easy to manufacture, and relatively low in cost, and is extremely high in innovativeness.
Description
Technical field
The utility model belongs to the accordion production field, particularly a kind of short carbon fiber reinforced polymer matrix composites qin case accordion.
Background technology
Accordion belongs to the free spring aerophone, and the dependence air-flow excites reed vibrates and pronounces, and is good (instrumental) ensemble, musical instrument accompaniment, also is the musical instrument commonly used in the music teaching.At present, the qin case of accordion comprises keyboard audio amplifier, bass audio amplifier etc.Keyboard audio amplifier, bass audio amplifier are the housings of accordion, also are the main bodys of accordion framed structure, and keyboard audio amplifier, bass audio amplifier adopt the timber such as Korean pine, kahikatea, maple to make base more, the sticking versicolor celluloid of surface bag.In the past, there were ten large drawbacks in this accordion parts of making take timber as raw material: the one, and the prices of raw and semifnished materials are expensive, and utilization factor is low, causes cost high.Because used timber requires growth period longer, generally want decades, the upper century-old age of tree, and demand is larger, so these timber prices are all higher; And domestic wood supply is not enough, needs dependence on import, more causes cost of manufacture to increase.The 2nd, weight is large.Take three row's spring 120BS accordions as example, every accordion weight is about 10 kilograms, and this feels heavy deeply concerning the especially juvenile fan of many amateurs.The 3rd, production process is many, complex process.Begin to need 30 multiple working procedures to completing from the timber fracture, and the technological requirement of many operations is also very harsh.Such as the raw material of timber as the qin case, log must be broken into behind the sheet material under not open-air condition natural drying 2 years and just can use, and timber moisture must be controlled at below 5%, the moisture height easily makes the qin case deform, and gas leakage affects the quality of accordion.Dried timber neither all can both be suitable for makes the qin case, select the timber that does not all have the scab joint, is commonly called as completely without the scab material.The various smallclothes material of processing utilize the mold of different size to be combined into the qin case, carry out bondingly with white glues again, and every kind of smallclothes material can not surpass 1mm to difference, leak gas that to cause product defective otherwise can cause.The 4th, the production cycle is long.Play to complete from fracture and take 90 days.The 5th, the occupation of capital time is long, from advancing timber to completing, the time more than 2 years.The 6th, occupied ground is large.The starting material resting period is long, manufacturing procedure is many, and the flowing water line length all will take up room.The 7th, product is fragile.The 8th, take personnel many, labour intensity is large.The 9th, high to the employee quality requirement.The tenth, production efficiency is low.Above problem, its root all are take timber as starting material to make the accordion parts, and seeking a kind of new material, to replace timber be extremely urgent.For this difficult problem, the applicant drops into substantial contribution, equipment and technical force, and cooperates with domestic institution of higher learning, is devoted to the research and development of new material.Through in a few years repeatedly experiment and unremitting effort, successfully utilize the short carbon fiber reinforced polymer matrix composites to replace timber, disposal molding is made the accordion case, the all drawbacks that exist in the traditional fabrication method have been solved, and research and develop and made a series of short carbon fiber reinforced polymer matrix composites qin case accordions, realized the revolution progress that accordion is manufactured.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides that a kind of functional, weight is light, handling ease, lower-cost short carbon fiber reinforced polymer matrix composites qin case accordion.
The utility model solves its technical matters and takes following technical scheme to realize:
A kind of short carbon fiber reinforced polymer matrix composites qin case accordion, comprise keyboard, bellows, bass and Qin Gai, keyboard, bellows and bass connect successively, the qin lid is installed on the keyboard, described keyboard is comprised of keyboard audio amplifier, key and keyboard sound-changing device, and key and keyboard sound-changing device all are installed on the keyboard audio amplifier; Described bass is comprised of bass audio amplifier, bass beans and bass sound-changing device, and bass beans and bass sound-changing device all are installed on the bass audio amplifier, it is characterized in that: described keyboard audio amplifier is one-body molded by the short carbon fiber reinforced polymer matrix composites; Described bass audio amplifier is one-body molded by the short carbon fiber reinforced polymer matrix composites.
And the bottom of described keyboard audio amplifier is shaped with the audio amplifier frame, and audio amplifier frame is the short carbon fiber reinforced polymer matrix composites on this, and one-body molded with described keyboard audio amplifier.
And the top of described bass audio amplifier is shaped with lower audio amplifier frame, and this time audio amplifier frame is the short carbon fiber reinforced polymer matrix composites, and one-body molded with described bass audio amplifier.
And described short carbon fiber reinforced polymer matrix composites are cooperated with the PC engineering plastics of 5-20% by the ABS resin of 80-95% to form.
Advantage of the present utility model and good effect are:
1. the utility model short carbon fiber reinforced polymer matrix composites qin case accordion, excellent, tonequality, tamber effect are good.
2. the utility model short carbon fiber reinforced polymer matrix composites qin case accordion, weight is lighter.
3. the utility model short carbon fiber reinforced polymer matrix composites qin case accordion is insensitive to humidity, not yielding.
4. the utility model short carbon fiber reinforced polymer matrix composites qin case accordion, its qin case is that disposable injection moulding is made, and than wooden qin case 30 multiple working procedures and 2 years multiplex's phases, its operation is simple, makes easily, and the duration is shorter.
5. this short carbon fiber reinforced polymer matrix composites qin case accordion, its qin case is made for the artificial-synthetic material, and cost is lower.
6. this short carbon fiber reinforced polymer matrix composites qin case accordion, audio amplifier frame is the short carbon fiber reinforced polymer matrix composites on it, and one-body molded with described keyboard audio amplifier; Lower audio amplifier frame is the short carbon fiber reinforced polymer matrix composites, and one-body molded with described bass audio amplifier; Adopt the short carbon fiber reinforced polymer matrix composites to replace original wooden acoustic box frame, further reduce operation, reduce cost, alleviate qin heavy.
7. the utility model short carbon fiber reinforced polymer matrix composites qin case accordion, having the advantages such as tone color, tonequality is good, lightweight, not fragile, making is easy, cost is lower, is a kind of short carbon fiber reinforced polymer matrix composites qin case accordion with high novelty.
Description of drawings
Fig. 1 is the utility model short carbon fiber reinforced polymer matrix composites qin case accordion structure schematic diagram (not containing the auxiliary equipments such as braces);
Fig. 2 is the vertical view of Fig. 1.
Description of reference numerals
The 1-key, 2-keyboard sound-changing device, 3-qin lid, 4-keyboard audio amplifier, 5-bellows, 6-bass audio amplifier, 7-bass sound-changing device, 8-bass beans, audio amplifier frame under the upper audio amplifier frame of 9-, the 10-.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail by specific embodiment.Following examples are descriptive, are not determinate, can not limit protection domain of the present utility model with this.
A kind of short carbon fiber reinforced polymer matrix composites qin case accordion comprises keyboard, bellows 5, bass and qin lid 3.Keyboard, bellows and bass connect successively.The qin lid is installed on the keyboard.Keyboard is comprised of keyboard audio amplifier 4, key 1 and keyboard sound-changing device 2.Key, keyboard sound-changing device are installed on the keyboard audio amplifier.Bass is comprised of bass audio amplifier 6, bass beans 8 and bass sound-changing device 7.Bass beans, bass sound-changing device are installed on the bass audio amplifier.
The innovation of this short carbon fiber reinforced polymer matrix composites qin case accordion is: the keyboard audio amplifier is one-body molded by the short carbon fiber reinforced polymer matrix composites.The bass audio amplifier is one-body molded by the short carbon fiber reinforced polymer matrix composites.The bottom of keyboard audio amplifier is shaped with audio amplifier frame 9, and audio amplifier frame is the short carbon fiber reinforced polymer matrix composites on this, and one-body molded with described keyboard audio amplifier.The top of bass audio amplifier is shaped with lower audio amplifier frame 10, and this time audio amplifier frame is the short carbon fiber reinforced polymer matrix composites, and one-body molded with described bass audio amplifier.Adopt the short carbon fiber reinforced polymer matrix composites to replace original wooden acoustic box frame, further reduce operation, reduce cost, alleviate qin heavy.
The short carbon fiber reinforced polymer matrix composites that the utility model adopts are that the ABS resin of 80-90%, PC engineering plastics and the cooperation of 2-5% short carbon fiber of 8-15% form by percentage by weight.The ABS resin of the short carbon fiber reinforced polymer matrix composites employing 90% of adopting among the present invention and 9% PC engineering plastics and 1 short carbon fiber consist of.The chopped carbon fiber that short carbon fiber adopts polyacrylonitrile carbon fiber or asphalt-based carbon fiber carbonization to make.
Its main material performance index of above-mentioned short carbon fiber reinforced polymer matrix composites is as follows:
Density: 1.0-1.7kg/m
3
Tensile strength: more than the 3500MPa.
Tensile modulus: 23000-43000MPa.
Hydroscopicity: insensitive to wet environment.
Absorptivity: extremely low.
Each parts adopts compound behind overheated melting, and adopts mold injection molding.
The utility model short carbon fiber reinforced polymer matrix composites qin case accordion, through architecture institute Building Technology Science research institute of the University Of Tianjin accordion syllable frequency characteristic contrast test of doing on March 17 in 2013 (test No.: Y-13-001), protolignin's qin case accordion and short carbon fiber reinforced polymer matrix composites qin case accordion, 12 typical single syllable musical frequency characteristics are almost completely identical, and some aspect short carbon fiber reinforced polymer matrix composites qin case accordion also is better than wooden qin case accordion.
Attached: " University Of Tianjin's architecture institute Architecural Physics examining report " (test No.: Y-13-001)
The principle of work of this short carbon fiber reinforced polymer matrix composites qin case accordion is:
Short carbon fiber reinforced polymer matrix composites qin case accordion comprises keyboard qin tank shell and bass qin tank shell, because it is made by the disposable injection moulding of short carbon fiber reinforced polymer matrix composites, so operation is simple, make easily, the duration is shorter, and integrated cost is lower; Because of short carbon fiber reinforced polymer matrix composites proportion less than timber, so weight is lighter; Because of short carbon fiber reinforced polymer matrix composites physical property good, therefore its tonequality, tamber effect are good; Because of the short carbon fiber reinforced polymer matrix composites insensitive to wet environment, therefore it is not yielding, cracking, durable in use.
The short-and-medium carbon fiber enhancement resin base composite material qin of the utility model case is compared with the wooden qin case of tradition, has advantages of outstanding:
One, material behavior
The accordion case comprises keyboard qin case and bass qin case, is the housing of accordion, also is the main body of framed structure.Effect mainly comprises fixing various parts, protection qin body inner structure and as the resonant of reed pronunciation etc.Therefore, its selection will take into full account the mechanical property of material, simultaneously under the prerequisite that guarantees the vocal music effects such as its tonequality, tone color, alleviate the weight of accordion self as far as possible, satisfy accordion fan's demand, reach the attenuating production cost, significantly the purpose of the to save timber energy.Data shows after deliberation, makes at present the look wood that the accordion case uses and requires density generally at 0.8kg/m
3Above, tensile strength parallel to grain is generally about 120MPa.
The tensile strength of the carbon fiber enhancement resin base composite material that the utility model adopts is more than 3500MPa, and tensile modulus is more than 23000-43000MPa, and density is then generally between 1.0-1.7kg/m
3Between, concrete numerical value depends on the content of carbon fiber.Good physical property has determined that carbon fiber enhancement resin base composite material has better advantage than timber, can not only guarantee to make the intensity of accordion case requirement, and thinner than timber quality, make the qin case of making lighter, reached the purpose that reduces the accordion own wt.Simultaneously, the integral body of compound substance forms technique, has effectively avoided producing owing to seam in the manufacture craft take timber as raw material the potential problems of gas leakage, has improved the quality of accordion.Carbon fiber enhancement resin base composite material has stronger designability than timber, the actual needs of the accordion of more fitting.
Two, technique is simple, and is with short production cycle
Make the accordion case take timber as raw material complicated tediously long, need through fracture, making, the sticking three process of bag, and every procedure also needs several links just can finish.The white stubble qin case of the smallclothes material (totally 18 kinds) of sheet material → disconnected square material → all size in log → the be broken into sheet material → natural drying → disconnected → bonding → punch → polish → repair → check → finish → beat putty → polish → soaks (acetone celluloid mixed liquor) → bag glues (celluloid) → drying (15 days) → polishing → first pass (360# emery wheel) → second time (600# emery wheel) → 3 time (pure cotton cloth wheel) → bag glue → to be finished.
Use the production cycle of wooden qin case: the drying of wood approximately 30 → day fracture approximately 7 days → qin case assemble approximately 7 days → dryness finalization approximately 15 days of the sticking polishing of approximately 30 days → bag.Amount to 90 days.
Make the accordion case with the tencel resin, simplified traditional working link, one-shot forming, convenient and swift, its technique is: fibre resin → moulding (Die casting machine) → check → finish.
The production cycle of using new material to make the qin case is: injection molding shaping approximately 3 days → deburring was assembled approximately 4 days.Amount to about 7 days.
Three, the demand manpower is few
Make the qin case take carbon fiber enhancement resin base composite material as raw material, do not have harsh environment and technical requirement, the common laborer, just can easily finish by specialized equipment in the environment of normal temperature by the professional training of short-term, reaches the Production requirement amount.Technique is avoided the error in adhesion process by numerous to letter, has improved the qualification rate of product.Because the traditional handicraft operation is many, and mostly is and makes by hand, so it is more to take the workman.Adopting new material is semi-automatic production, takies the workman and only is 1/10 of original workman's number, has liberated the labour of most.
Four, appearance looks elegant is beautiful
More wear-resisting anti-the bumping of qin case that new material is made is difficult for producing cut, and smooth finish is good, makes qin case outward appearance more beautiful, has promoted the aesthetic feeling of accordion.
Five, the feature of environmental protection is good
Timber is made the qin case and (is amounted to 18 kinds) from log to the smallclothes material that is processed into all size, need to carry out repeatedly fracture by electric saw and process.Processing procedure can produce corresponding waste material----sawdust.According to statistics, used altogether approximately 1500m of timber last year comprehensively
3, because it is more harsh to the requirement of wood quality to make accordion, the timber utilization rate generally can only reach about 40%, and 600m is namely arranged
3Timber become waste material and efflux, not only timber is had certain waste, and process also can produce dust and certain noise, cause environmental pollution.In manufacturing process, also to use a kind of chemical substance--acetone.Because acetone and timber all have inflammable physical characteristics, so that the environment of producing becomes company's fire prevention emphasis always, safety in production is the most important thing.
Make the qin case take carbon fiber enhancement resin base composite material as raw material, by special-purpose Die casting machine one-step die casting, smooth surface, and residual without organic molecule, preparation process is without obvious peculiar smell, do not have dust and noise, purified production environment, simultaneously, the waste material that produces and unacceptable product can be pulverized it and re-use, cut the waste, realized the sustainable use of resource, reach this operation " zero-emission ".Adopt new material to make the qin case and do not re-use acetone and timber, reduced the potential safety hazard of plant area, be conducive to safety in production.
Six, production efficiency is high
Take timber as raw material, because operation is many, intensity is large, and mostly is and makes by hand, production efficiency is not high, calculates by the skilled worker, from fracture, be adhered to makings, wrap to adhere to and finish, only can make 2 for each person every day, reach the demand of production, only make the qin case and will expend a large amount of manpowers.Because the home built limitation, because of bonding not tight, size is not inconsistent with timber because the factors such as naturally distortion that the loss of moisture causes also can cause the generation of certain waste product, goes out the rate of giving up and is about 20% in manufacturing process.
Make the accordion case with carbon fiber enhancement resin base composite material, original numerous and diverse manufacture craft is oversimplified, utilize simultaneously advanced equipments, reach semi-automatic and produce, improved widely production efficiency, the workman of a professional short-term cultivation of process, can operate simultaneously 3 equipment, everyone per hour just can manufacture 9, and production efficiency is original 36 times, fewer workers and several equipment satisfy present turnout, as long as just can be finished.
Seven, good in economic efficiency
Make the accordion case take timber as base stock, because waste material consuming time takies a large amount of manpowers, make every accordion production cost always high, from fracture, be fabricated into and finish, every accordion cost is about 180 yuan/cover.The employing new material not only saves time, laborsaving, material-saving, and disposable finishing, and greatly reduces production cost, by original 180 yuan/cover, be reduced to 70 yuan/cover, be about now original 1/3, calculate according to producing accordion 30,000 (parts) year, can save production cost more than 300 ten thousand yuan every year.
Although disclose for the purpose of illustration embodiment of the present utility model and accompanying drawing, but it will be appreciated by those skilled in the art that: in the spirit and scope that do not break away from the utility model and claims, various replacements, variation and modification all are possible, therefore, scope of the present utility model is not limited to embodiment and the disclosed content of accompanying drawing.
Claims (3)
1. short carbon fiber reinforced polymer matrix composites qin case accordion, comprise keyboard, bellows, bass and Qin Gai, keyboard, bellows and bass connect successively, the qin lid is installed on the keyboard, described keyboard is comprised of keyboard audio amplifier, key and keyboard sound-changing device, and key and keyboard sound-changing device all are installed on the keyboard audio amplifier; Described bass is comprised of bass audio amplifier, bass beans and bass sound-changing device, and bass beans and bass sound-changing device all are installed on the bass audio amplifier, it is characterized in that: described keyboard audio amplifier is one-body molded by the short carbon fiber reinforced polymer matrix composites; Described bass audio amplifier is one-body molded by the short carbon fiber reinforced polymer matrix composites.
2. short carbon fiber reinforced polymer matrix composites qin case accordion according to claim 1, it is characterized in that: the bottom of described keyboard audio amplifier is shaped with the audio amplifier frame, should upper audio amplifier frame be the short carbon fiber reinforced polymer matrix composites, and one-body molded with described keyboard audio amplifier.
3. short carbon fiber reinforced polymer matrix composites qin case accordion according to claim 1, it is characterized in that: the top of described bass audio amplifier is shaped with lower audio amplifier frame, this time audio amplifier frame is the short carbon fiber reinforced polymer matrix composites, and one-body molded with described bass audio amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320244858 CN203205022U (en) | 2013-05-08 | 2013-05-08 | Accordion with accordion boxes made of short carbon fiber reinforced resin matrix composite material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320244858 CN203205022U (en) | 2013-05-08 | 2013-05-08 | Accordion with accordion boxes made of short carbon fiber reinforced resin matrix composite material |
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| CN203205022U true CN203205022U (en) | 2013-09-18 |
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| CN 201320244858 Expired - Lifetime CN203205022U (en) | 2013-05-08 | 2013-05-08 | Accordion with accordion boxes made of short carbon fiber reinforced resin matrix composite material |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103268761A (en) * | 2013-05-08 | 2013-08-28 | 天津华韵乐器有限公司 | Rockcase accordion made of short carbon fiber reinforced resin matrix composite materials |
| CN105551457A (en) * | 2016-02-06 | 2016-05-04 | 刘宝利 | Piano key |
-
2013
- 2013-05-08 CN CN 201320244858 patent/CN203205022U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103268761A (en) * | 2013-05-08 | 2013-08-28 | 天津华韵乐器有限公司 | Rockcase accordion made of short carbon fiber reinforced resin matrix composite materials |
| CN103268761B (en) * | 2013-05-08 | 2015-07-29 | 天津华韵乐器有限公司 | A kind of short carbon fiber reinforced polymer matrix composites qin case accordion |
| CN105551457A (en) * | 2016-02-06 | 2016-05-04 | 刘宝利 | Piano key |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130918 |
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| CX01 | Expiry of patent term |