Piano combined type saddle and forming device and method

Abstract

The invention provides a piano combined type saddle and a forming device and method, the piano combined type saddle comprises a first section of mid-high pitch saddle in a mid-high pitch area of the saddle, the tail end of the first section of mid-high pitch saddle is connected with a second section of arc-shaped bending section, and the other end of the second section of arc-shaped bending section is in transition connection with a third section of bass saddle in a bass area of the saddle; and two ends of the second arc-shaped bending section are respectively overlapped and bonded with a first section of mid-high pitch saddle in a mid-high pitch area and a third section of low pitch saddle in a low pitch area in a staggered manner, so that the whole set of saddle substrate can be bonded into a whole. The continuity, the stability and the continuity of the saddle are ensured, the resonance effect of the piano resonance disc is enhanced, and the sound quality of the piano is improved; and by adopting the structure, the saddle has greater advantages in selection of saddle materials, solid wood materials can be saved, and the utilization rate of the materials can be improved.

Description

Technical Field

[0001] The invention relates to the field of piano parts, in particular to a piano combined string bridge and a forming device and method. Background Art

[0002] At present, there are two main types of piano string bridges in the piano manufacturing industry. The first type is a vertically assembled string bridge, which is a structure in which the vertically assembled string bridge base material is bonded to the solid wood top material; the second type is a solid wood connected imitation string bridge, which is a structure in which the traditional solid wood base material is bonded to the solid wood top material. The string bridge of the first structure has the disadvantages of great difficulty in forming, long molding and pressing time, difficulty in processing, high cost, large deformation, poor stability, and high quality requirements for raw material veneer; the string bridge of the second structure requires a larger width of solid wood board, which has the disadvantages of being difficult to process, low wood utilization rate, high cost, low production efficiency, and cannot meet the needs of mass production. The vertically assembled string bridge base material of the first structure needs to be pressed on the molding device for a long time to ensure the required arc bending and curve appearance structure. In this process, in order to reduce deformation and ensure function, good quality and relatively high cost wood veneer materials are also used for pressing and molding. The solid wood string bridge of the second structure is processed with a larger width of solid wood board, which requires a large number of machines and tools to complete the appearance. In this process, a whole piece of wood with good quality and a larger width needs to be selected to complete it. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a piano combined string bridge and molding device and method, which ensures the coherence, stability and continuity of the string bridge, enhances the resonance effect of the piano resonance plate, and improves the sound quality of the piano; and adopts this structure, which can have greater advantages in the selection of string bridge materials, can save solid wood materials, and improve material utilization. The above special molding mold can bend the multi-layer veneer into a preset string bridge shape, which meets the needs of mass production, improves production efficiency, reduces the difficulty of molding, shortens the molding pressing time, and solves the shortcomings of string bridge deformation, poor stability, high quality requirements of raw material veneer, low material utilization, and high production cost.

[0004] In order to achieve the above technical features, the object of the present invention is achieved as follows: a piano combined string bridge, comprising a first section of middle and high-pitched string bridge in the middle and high-pitched area of ​​the string bridge, the end of the first section of the middle and high-pitched string bridge is connected to a second section of arc-shaped bending section, and the other end of the second section of the arc-shaped bending section is transitionally connected to a third section of bass string bridge in the bass area of ​​the string bridge; The two ends of the second arc-shaped bending section are respectively staggered and overlapped to bond the first section of the mid-high-pitched string peg in the mid-high-pitched area of ​​the string peg and the third section of the bass string peg in the bass area of ​​the string peg, so that the whole set of string peg substrates can be bonded into a whole.

[0005] The first section of mid-treble string pegs adopts a curved structure as a whole, and the first section of mid-treble string pegs includes a mid-treble string peg bottom material structure located at the bottom, and a mid-treble string peg top material structure is bonded and formed on the top of the mid-treble string peg bottom material structure; The base material structure of the mid-high pitch string bridge is prepared by vertically splicing and bonding single boards; The top material structure of the mid-treble string bridge is formed by using a whole piece of hardwood material board.

[0006] The third section of bass string pegs adopts a curved structure as a whole, and the third section of bass string pegs comprises a bass string peg bottom material structure located at the bottom layer, and a bass string peg top material structure is bonded and formed on the top of the bass string peg bottom material structure; The bass string bridge bottom material structure and the bass string bridge top material structure are respectively formed by adopting a whole piece of hardwood material board.

[0007] The second arc-shaped bending section is formed by using a whole piece of hardwood material board.

[0008] A forming mold for a piano middle and high pitch vertically assembled string bridge, the forming mold is used to form a base material structure of the middle and high pitch string bridge; The upper mold comprises an upper mold fixing structure disposed on the top of the upper mold, and an upper arc surface structure is processed on the bottom end surface of the upper mold, and the upper arc surface structure fits with the outer side surface of the string pegs of the first section of the middle and high pitch string pegs; It also includes a lower mold, the bottom of which is provided with a lower mold fixing structure, and the top surface of the lower mold is processed with a lower arc surface structure, which fits with the inner side surface of the string code of the first section of the middle and treble string code.

[0009] The upper mold is made of solid wood or plywood that is vertically spliced ​​and bonded and then processed into a copy shape. A plurality of first lengthened screws and nuts are installed through both sides of the upper mold. The lower mold is made of solid wood or plywood that is vertically spliced ​​and bonded and then processed by copying the shape. A plurality of second extended screw rods and nuts are installed through both sides of the lower mold.

[0010] The upper mold fixing structure and the lower mold fixing structure adopt the same structure. The upper mold fixing structure includes a mold bottom plate, and symmetrically arranged side plates are fixed on the mold bottom plate. The side plates are located on both sides of the upper mold, and screw holes are processed on the side plates. The position where the screw holes are located is fixedly connected to the upper mold by screws.

[0011] The method for forming the base material structure of the piano mid-high pitch vertically assembled string pegs by using the molding mold for forming the piano mid-high pitch vertical string pegs comprises the following steps: Step 1: Selection of boards: Select the single board used to prepare the base material structure of the mid-high tone string bridge; Step 2, single board processing: Process the veneer into the set thickness, sand it, apply glue and stack it; Step 3, Glue pressing of the board: The stacked veneers are pressed and formed using a forming mold; Step 4, cutting of the board: After the forming is completed, the rough blank is taken out and cut into multiple pieces; Step 5: Forming the base material structure of the mid-treble string bridge: Finally, the mid-treble string peg base material structure is processed into the first section of the mid-treble string peg as required.

[0012] The present invention has the following beneficial effects: By using a multi-layer veneer bonding structure to complete the piano mid-high pitch vertical splicing forming string bridge base material, and then using hardwood with the same wood grain to process the arc-shaped bending connection section and the string bridge bass base material and connect them into a whole, the coherence, stability and continuity of the string bridge are guaranteed, the resonance effect of the piano resonance plate is enhanced, and the sound quality of the piano is improved. And adopting this structure can have greater advantages in the selection of string bridge materials, can save solid wood materials, and improve material utilization. Using the above special molding mold, the multi-layer veneer can be bent into a preset string bridge shape, which meets the needs of mass production, improves production efficiency, reduces the difficulty of molding, shortens the molding pressing time, and solves the shortcomings of string bridge deformation, poor stability, high quality requirements of raw material veneer, low material utilization, and high production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 It is a plan view of the combined string code of the piano of the present invention.

[0015] Figure 2 It is a front view of the first section of the middle and high pitch string bridge and the second section of the arc-shaped bending section of the present invention.

[0016] Figure 3 It is a front view of the third section of the bass string bridge and the second section of the arc-shaped bending section of the present invention.

[0017] Figure 4 For the present invention Figure 1 Medium AA view.

[0018] Figure 5 For the present invention Figure 1 Medium BB view.

[0019] Figure 6 For the present invention Figure 1 Middle EE view.

[0020] Figure 7 For the present invention Figure 1 Medium FF view.

[0021] Figure 8 It is the front view of the molding die of the present invention.

[0022] Fig. 9 It is a side view of the molding die of the present invention.

[0023] In the figure: a first section of treble string peg 1, a second section of arc-shaped bending section 2, a third section of bass string peg 3, an outer side surface of the string peg 4, an inner side surface of the string peg 5, an upper mold fixing structure 6, an upper mold 7, a first lengthened screw 8, an upper arc-shaped curved surface structure 9, a lower arc-shaped curved surface structure 10, a lower mold 11, a lower mold 12, and a lower mold fixing structure 13; A mid-treble string bridge top material structure 101 and a mid-treble string bridge bottom material structure 102; The bass string bridge top material structure 301 and the bass string bridge bottom material structure 302. DETAILED DESCRIPTION

[0024] The embodiments of the present invention are further described below in conjunction with the accompanying drawings.

[0025] Embodiment 1: See also Figure 1-7 A piano combined string bridge comprises a first section of middle and high pitch string bridge 1 in the middle and high pitch area of ​​the string bridge, the end of the first section of middle and high pitch string bridge 1 is connected with a second section of arc-shaped bending section 2, and the other end of the second section of arc-shaped bending section 2 is transitionally connected with a third section of bass string bridge 3 in the bass area of ​​the string bridge; the two ends of the second section of arc-shaped bending section 2 are respectively staggered and overlapped to bond the first section of middle and high pitch string bridge 1 in the middle and high pitch area of ​​the string bridge and the third section of bass string bridge 3 in the bass area of ​​the string bridge, so that the whole set of string bridge base materials can be bonded into a whole. By adopting the above-mentioned combined string bridge, the existing two types of structure string bridges can be well solved, which have the problems of great difficulty in molding, long molding and pressing time, difficulty in processing, high cost, easy deformation, poor stability, high requirements on raw material quality, and low production efficiency. The piano middle and high pitches are vertically assembled into the base material of the string bridge by using a multi-layer veneer bonding structure, and then the arc-shaped bending connecting section and the base material of the string bridge are processed with hardwood with the same wood grain and connected into a whole, which ensures the coherence, stability and continuity of the string bridge, enhances the resonance effect of the piano resonance plate, and improves the sound quality of the piano. And adopting this structure can have greater advantages in the selection of string bridge materials, can save solid wood materials, and improve material utilization.

[0026] Furthermore, the first section of the mid-treble string peg 1 adopts a curved structure as a whole, and the first section of the mid-treble string peg 1 includes a mid-treble string peg bottom material structure 102 located at the bottom, and the top of the mid-treble string peg bottom material structure 102 is bonded and formed with a mid-treble string peg top material structure 101. The first section of the mid-treble string peg 1 can be used to form a mid-treble string peg.

[0027] Furthermore, the mid-treble string bridge base material structure 102 is formed by vertically splicing and bonding single boards; by adopting the above structure, the coherence, stability and continuity of the string bridge are ensured, the resonance effect of the piano resonance plate is enhanced, and the sound quality of the piano is improved.

[0028] Furthermore, the mid-treble string bridge top material structure 101 is formed by a whole piece of hardwood material board. The mid-treble string bridge top material structure 101 ensures the continuity of the string bridge.

[0029] Furthermore, the third section of the bass string peg 3 adopts a curved structure as a whole, and the third section of the bass string peg 3 includes a bass string peg bottom material structure 302 located at the bottom, and a bass string peg top material structure 301 is bonded and formed on the top of the bass string peg bottom material structure 302. The third section of the bass string peg 3 can form a bass string peg.

[0030] Furthermore, the bass string peg bottom material structure 302 and the bass string peg top material structure 301 are respectively formed by a whole piece of hardwood material board. The above-mentioned board ensures the overall structural continuity and stability of the bass string peg.

[0031] Furthermore, the second arc-shaped bending section 2 is formed by forming a whole piece of hardwood material board.

[0032] Embodiment 2: See also Figure 8-9 A forming mold for forming piano middle and high pitch vertically assembled string bridges, the forming mold is used to form the base material structure 102 of the middle and high pitch string bridges; it includes an upper mold 7, the top of the upper mold 7 is provided with an upper mold fixing structure 6, the bottom end surface of the upper mold 7 is processed with an upper arc surface structure 9, and the upper arc surface structure 9 is in contact with the outer side surface 4 of the string bridge of the first section of the middle and high pitch string bridge 1; it also includes a lower mold 11, the bottom of the lower mold 11 is provided with a lower mold fixing structure 13, the top end surface of the lower mold 11 is processed with a lower arc surface structure 10, and the lower arc surface structure 10 is in contact with the inner side surface 5 of the string bridge of the first section of the middle and high pitch string bridge 1. Through the above-mentioned forming mold, the multi-layer veneer can be bent into a preset string bridge shape, which meets the needs of mass production, improves production efficiency, reduces the difficulty of forming, shortens the forming pressing time, and solves the shortcomings of string bridge deformation, poor stability, high quality requirements of raw material veneer, low material utilization rate, and high production cost.

[0033] Furthermore, the upper mold 7 is made of solid wood or plywood, which is processed by vertically splicing and gluing, and a plurality of first lengthened screws 8 and nuts are installed on both sides of the upper mold 7; the lower mold 12 is made of solid wood or plywood, which is processed by vertically splicing and gluing, and a plurality of second lengthened screws 12 and nuts are installed on both sides of the lower mold 12. The strength and stability of the mold are increased, so that the upper and lower molds are not deformed or debonded when subjected to force.

[0034] Further, the upper mold fixing structure 6 and the lower mold fixing structure 13 adopt the same structure, and the upper mold fixing structure 6 includes a mold bottom plate 601, and symmetrically arranged side plates 602 are fixed on the mold bottom plate 601. The side plates 602 are located on both sides of the upper mold 7. Screw holes 603 are processed on the side plates 602, and the parts where the screw holes 603 are located are fixedly connected to the upper mold 7 by screws. The upper mold fixing structure 6 and the lower mold fixing structure 13 are convenient for disassembly and replacement on the pressure equipment.

[0035] Embodiment 3: The method for forming the mid-high pitch string peg substrate structure 102 by using the molding mold for forming the mid-high pitch vertically assembled piano string pegs comprises the following steps: Step 1: Selection of boards: Selecting a single board for preparing the mid-high pitch string bridge base material structure 102; Step 2, single board processing: Process the veneer into the set thickness, sand it, apply glue and stack it; Step 3, glue pressing of the board: The stacked veneers are pressed and formed using a forming mold; Step 4, cutting of the board: After the forming is completed, the rough blank is taken out and cut into multiple pieces; Step 5: Forming the mid-treble string bridge base material structure 102: Finally, the mid-treble string peg base material structure 102 is processed into the first section of mid-treble string peg 1 as required.

Claims

1. A piano combined string code, characterized in that: The invention comprises a first section of mid-high-pitched string peg (1) in the mid-high-pitched region of the string pegs, the end of the first section of mid-high-pitched string peg (1) is connected to a second section of arc-shaped bending section (2), and the other end of the second section of arc-shaped bending section (2) is transitionally connected to a third section of bass string peg (3) in the bass region of the string pegs; The two ends of the second arc-shaped bent section (2) are respectively staggered and overlapped to bond the first section of the mid-high-pitched string peg (1) in the mid-high-pitched area of ​​the string peg and the third section of the bass string peg (3) in the bass area of ​​the string peg, so that the entire set of string peg substrates can be bonded into a whole.

2. A piano combined string bridge according to claim 1, characterized in that: The first section of mid-treble string pegs (1) adopts a curved structure as a whole. The first section of mid-treble string pegs (1) comprises a mid-treble string peg bottom material structure (102) located at the bottom layer. The top of the mid-treble string peg bottom material structure (102) is bonded and formed with a mid-treble string peg top material structure (101); The mid-treble string bridge base material structure (102) is prepared by vertically splicing and bonding single boards; The mid-treble string bridge top material structure (101) is formed by using a whole piece of hardwood material board.

3. The piano combined string code according to claim 2, characterized in that: The third section of bass string pegs (3) adopts a curved structure as a whole, and the third section of bass string pegs (3) comprises a bass string peg bottom material structure (302) located at the bottom layer, and a bass string peg top material structure (301) is bonded and formed on the top of the bass string peg bottom material structure (302); The bass string peg bottom material structure (302) and the bass string peg top material structure (301) are respectively formed and prepared using a whole piece of hardwood material board.

4. The piano combined string code according to claim 3, characterized in that: The second arc-shaped bending section (2) is formed from a whole piece of hardwood material board.

5. A forming mold for piano treble vertical string bridges, characterized in that: The molding die is used to mold the mid-high pitch string bridge base material structure (102) as claimed in any one of claims 2 to 4; The upper mold (7) comprises an upper mold fixing structure (6) disposed on the top of the upper mold (7), an upper arc-shaped curved surface structure (9) processed on the bottom end surface of the upper mold (7), and the upper arc-shaped curved surface structure (9) fits with the outer side surface (4) of the first section of the middle and high pitch string pegs (1); The invention also comprises a lower mold (11), the bottom of which is provided with a lower mold fixing structure (13), the top surface of which is processed with a lower arc-shaped curved surface structure (10), and the lower arc-shaped curved surface structure (10) is fitted with the inner side surface (5) of the first section of the middle and high pitch string pegs (1).

6. The forming mold for the piano treble vertical string bridge according to claim 5, characterized in that: The upper mold (7) is made of solid wood or plywood that is vertically spliced ​​and glued together and then processed into a similar shape. A plurality of first extended screws (8) and nuts are installed through both sides of the upper mold (7); The lower mold (12) is made of solid wood or plywood that is vertically spliced ​​and bonded and then processed into a similar shape. A plurality of second extended screws (12) and nuts are installed through both sides of the lower mold (12).

7. The forming mold for the piano treble vertical string bridge according to claim 5, characterized in that: The upper mold fixing structure (6) and the lower mold fixing structure (13) have the same structure. The upper mold fixing structure (6) comprises a mold base plate (601). The mold base plate (601) is fixed with symmetrically arranged side plates (602). The side plates (602) are located on both sides of the upper mold (7). Screw holes (603) are processed on the side plates (602). The position where the screw holes (603) are located is fixedly connected to the upper mold (7) by screws.

8. A method for forming a piano treble and treble string peg substrate structure (102) as claimed in any one of claims 2 to 4 using a molding mold for forming a piano treble and treble string peg as claimed in any one of claims 5 to 7, characterized in that: The following steps are involved: Step 1: Selection of boards: Selecting a single board for preparing a mid-high pitch string bridge base material structure (102); Step 2, single board processing: Process the veneer into the set thickness, sand it, apply glue and stack it; Step 3, Glue pressing of the board: The stacked veneers are pressed and formed using a forming mold; Step 4, cutting of the board: After the forming is completed, the rough blank is taken out and cut into multiple pieces; Step 5, forming the mid-high pitch string bridge base material structure (102): Finally, the mid-treble string peg base material structure (102) is processed into the first section of mid-treble string pegs (1) as required.

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