CN102110432A - Piano shell - Google Patents
Piano shell Download PDFInfo
- Publication number
- CN102110432A CN102110432A CN2009102168754A CN200910216875A CN102110432A CN 102110432 A CN102110432 A CN 102110432A CN 2009102168754 A CN2009102168754 A CN 2009102168754A CN 200910216875 A CN200910216875 A CN 200910216875A CN 102110432 A CN102110432 A CN 102110432A
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- China
- Prior art keywords
- piano
- casing
- paint
- shell
- board
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- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
The invention relates to the technical field of piano manufacturing, in particular to a piano shell. The piano shell is characterized in that the inner cores of components such as a front top board, a rear top board, an upper panel, a lower panel, a key cover, a curved shell, side boards, side walls and the like of the piano shell are made of medium-density fiberboards, the two sides of a medium-density fiberboard are respectively pasted with a high-pressure decorative laminate made of thermosetting resin impregnated paper, and the surface of the medium-density fiberboard is coated with special piano paint. The invention solves the problem that in the prior art, because the medium-density fiberboard is directly coated with paint, the paint film of the piano has the phenomenon of cracking after the piano is used for a period of time. The piano shell provided by the invention is simple in structure and low in cost, and has an important application value in the piano manufacturing field.
Description
Technical field
The invention belongs to piano manufacturing technology field, particularly a kind of casing of piano
Background technology
Two kinds in piano discrete piano and horizontal piano.Piano is with its dulect tone color, and body is big, and parts are numerous, and are called as the king of musical instrument always.In the past, piano had only a few peoples to enjoy, and along with the raising of people's living standard, the piano demand was also being improved constantly, and particularly numerous children and teenagers' education, was subjected to, and more needed a large amount of pianos.Piano manufacturing cost height.For vast non-piano professional person, be necessary to reduce the cost and price of piano, satisfy people's demand.
In the piano component structural, except minorities such as cast iron gagger, string, axle nail, screw adopt the metal material, most parts are made by wood materials.Wherein shell is with the maximum part of quantity of material.
Casing of piano mainly comprise the front and back top cover, sidewall, side plate of upright piano, to the doorstep, the Xiamen, go up doorjamb, doorjamb down, key lid, backset, qin leg, qin leg bolster, qin pin, qin leg, chassis, back of the body frame etc. down.Parts such as top cover, curved shell, key lid, strong shelves, qin leg, qin leg bolster and back of the body frame before and after horizontal casing of piano mainly comprises.
In the prior art, each parts of casing of piano are by solid wood, or the solid wood jigsaw constitutes, exist the high problem of cost, in order to reduce cost, the also useful multi-plywood of part parts is made, reoil, as front and back top cover, side plate, sidewall, to the doorstep, costs such as Xiamen, curved shell, key lid are still higher.What have uses medium density fibre board (MDF) instead, and paints, but after piano used a period of time, the tangerine peel phenomenon appearred in paint.
Have in the prior art and a kind ofly do casing of piano with bamboo clappers, it is higher that this bamboo matter casing of piano has weight, and carrying is inconvenient, and high especially in the processing to the bamboo clappers quality requirements, do not allow aberration, lose flesh, defective such as piece, lacquer celluloid paint defective very easy manifesting, influence attractive in appearance.Therefore, its cost is also very high.
Summary of the invention
The present invention seeks to: provide a kind of inexpensive casing of piano to overcome above-mentioned defective.
Technical scheme of the present invention is: a kind of casing of piano, before and after top board, to the doorstep, Xiamen, key lid, curved shell, sidewall, these parts of side plate adopt medium density fibre board (MDF)s, post thermoset resin impregnated paper high pressure laminated decorative board on the medium density fibre board (MDF) two sides, and scribble piano on the surface and paint.
Above-mentioned laminated board thermoset resin is phenolics or melamine formaldehyde resin.
Above-mentioned surperficial paint thickness 0.5-1mm.
The low decorative high-pressure scutum of above-mentioned thermoset resin dipping, thickness 0.5-1.5mm, it pastes on the medium density fiber surface, uses bonding agent to be the Polyurethane glue stick.
Above-mentioned two-component adhesive is that isocyanates is the two-component adhesive of hardening agent.
Advantage of the present invention and useful technique effect are: the present invention adopts the medium density fibre board (MDF) two sides to paste thermoset resin impregnated paper high pressure laminated decorative board, and the coating piano is painted as casing of piano above.Technical scheme, have paint coating weight less, smooth finish is good, use for a long time indeformable, paint good effectiveness.And cost is low, and is inexpensive.Overcome solid wood casing of piano cost height, the shortcoming that long-term use also can be out of shape has overcome the higher shortcoming of multi-plywood casing of piano cost.The direct two sides of medium density fibre board (MDF) paint is made casing of piano, though cost is lower, and long-term the use, medium density fibre board (MDF) can change harmomegathus because of humidity in the air, makes surface paint the tangerine peel phenomenon occur, influences the attractive in appearance of casing of piano.The densification of thermoset resin impregnated paper high pressure laminated decorative board, waterproof and dampproof property is good, and dilatation is very little, with its two-sided compound medium density fibre board (MDF), two-sidedly again be coated with piano and paint, the distortion that can not absorb water of the casing of piano of making, can harmomegathus yet, also overcome the tangerine peel phenomenon and taken place.Simultaneously, it is with low cost, has reduced the cost of piano.
Description of drawings
Fig. 1 is the cross-sectional view of the board-like parts of casing of piano
1 is the casing of piano parts among the figure, and 2 is medium density fibre board (MDF)
3 is thermoset resin impregnated paper high pressure laminated decorative board,
4 are paint, and 5 is bonding agent
Embodiment
Embodiment 1: the medium density fibre board (MDF) of selecting 25mm thickness for use, precut into casing of piano parts such as pretectum specification, the coating polyurethane adhesive, the two sides pastes melamine formaldehyde resin impregnated paper high pressure laminated decorative board, cumuliformis plate thickness 1.2mm, the curing molding of colding pressing; Deburring to being attached to the laminate surface sand milling on medium density fibre board (MDF) two sides, is coated with face polyurethane piano lacquerization, film thickness 0.5-1.0mm, and coating 3-4 is all over paint, and after 48 hours, the paint film sand milling to dried curing gets rid of light, obtains the casing of piano parts.
Claims (5)
1. casing of piano, top board before and after it is characterized in that, to the doorstep, Xiamen, key lid, curved shell, sidewall, these parts of side plate adopt medium density fibre board (MDF)s, post thermoset resin impregnated paper high pressure laminated decorative board on the medium density fibre board (MDF) two sides, and scribble piano on the surface and paint.
2. casing of piano according to claim 1 is characterized in that above-mentioned laminated board thermoset resin is phenolics or melamine formaldehyde resin.
3. casing of piano according to claim 1 is characterized in that above-mentioned surperficial paint thickness 0.5-1mm.
4. casing of piano according to claim 1 is characterized in that the low decorative high-pressure scutum of thermoset resin dipping, thickness 0.5-1.5mm, and it pastes on the medium density fiber surface, uses bonding agent to be the Polyurethane glue stick.
5. casing of piano according to claim 1, the two-component adhesive of its feature are that isocyanates is the two-component adhesive of hardening agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102168754A CN102110432A (en) | 2009-12-29 | 2009-12-29 | Piano shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102168754A CN102110432A (en) | 2009-12-29 | 2009-12-29 | Piano shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102110432A true CN102110432A (en) | 2011-06-29 |
Family
ID=44174567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102168754A Pending CN102110432A (en) | 2009-12-29 | 2009-12-29 | Piano shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102110432A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104029551B (en) * | 2014-06-17 | 2016-08-24 | 营口西尔伯曼钢琴有限公司 | Casing of piano coating resin mill base handwritten drawings production technology |
| CN109147720A (en) * | 2018-09-03 | 2019-01-04 | 黄雪侨 | A kind of piano Xiamen |
-
2009
- 2009-12-29 CN CN2009102168754A patent/CN102110432A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104029551B (en) * | 2014-06-17 | 2016-08-24 | 营口西尔伯曼钢琴有限公司 | Casing of piano coating resin mill base handwritten drawings production technology |
| CN109147720A (en) * | 2018-09-03 | 2019-01-04 | 黄雪侨 | A kind of piano Xiamen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110629 |