CN112150986A - Piano string winding device - Google Patents
Piano string winding device Download PDFInfo
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- CN112150986A CN112150986A CN202011116211.3A CN202011116211A CN112150986A CN 112150986 A CN112150986 A CN 112150986A CN 202011116211 A CN202011116211 A CN 202011116211A CN 112150986 A CN112150986 A CN 112150986A
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- 238000004804 winding Methods 0.000 title claims abstract description 223
- 238000005452 bending Methods 0.000 claims abstract description 62
- 238000003825 pressing Methods 0.000 claims description 48
- 238000000034 method Methods 0.000 claims description 9
- 230000001174 ascending effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10C—PIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS
- G10C3/00—Details or accessories
- G10C3/07—Strings
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Abstract
The invention discloses a piano string winding device which comprises a clamping machine body (1), a winding device (2), a winding machine head (3) and a feeding platform (4); the linear string (101) is continuously fed into the feeding platform (4) from the feeding platform (4) to the position of the clamping machine body (1) and clamped, and one end of the string extends out of the clamping machine body (1) and penetrates through the winding device (2); the rotating shaft (2.1) and the positioning column (2.2) arranged on the winding device (2) rotate, one end of the string is bent, a winding coil (102) and a first bending section (103) are formed, and the winding splint (3.1) rotates the winding coil (102) circumferentially and forms a first winding section (105) and a second winding section (106) of the string. The device does not need to be bent in the early stage, can directly feed the linear strings and automatically form the strings, can ensure the length requirement of the winding part at the end part, has higher processing efficiency and can possibly ensure the external dimension of a winding.
Description
Technical Field
The invention relates to the technical field of pianos, in particular to a piano string winding device.
Background
The invention patent that the applicant previously applied and published, bass string winding machine, it includes the motor, reduction box, slipway apparatus and bobbin rotatably mounted on slipway apparatus transversely set up on the work station from right to left sequentially, string stop device used for limiting string position and clamping device used for clamping string one end, wherein the motor, reduction box are mounted on work station through the bolt or other fasteners directly; the first fixing frame is arranged on the workbench; the second fixing frame is arranged on the workbench close to the left of the first fixing frame. The power output shaft of the motor is connected with the input end of the reduction gearbox, the output end of the reduction gearbox is connected with one end of the winding shaft, specifically, the power output shaft of the motor is inserted into the input end of the reduction gearbox and circumferentially limited, and one end of the winding shaft is inserted into the output end of the reduction gearbox and circumferentially limited, so that when the motor rotates, the winding shaft is driven to rotate, and the rotating speed of the motor is far greater than that of the winding shaft through the speed reduction effect of the reduction gearbox, so that the purpose of the invention is achieved.
And the other end of the winding shaft is provided with a winding hook for winding the string buckle, and the winding hook is fixedly connected with one end of the winding shaft through a screw.
Slip table device sliding fit on the workstation between string stop device and reducing gear box, slip table device's slip direction be parallel with the axis of spool, the spool lateral rotation installs on the slip table device, concrete structure is: the sliding table device comprises a sliding table, a sliding rail and a first fixing frame, and the first fixing frame is fixed on the workbench through screws or bolts; the sliding rail is arranged on the first fixing frame and transversely arranged along the direction of the motor, the reduction gearbox and the sliding table device, namely the direction of the sliding rail is the same as the direction of the winding shaft; the sliding table is in sliding fit with the sliding rail; the sliding table is fixedly connected with a fourth cylinder through a bolt, and the axis of a piston rod of the fourth cylinder is parallel to the sliding rail. The sliding table is provided with a through hole, the winding shaft penetrates through the through hole and is in running fit with the sliding table through a bearing, and the bearing is fixedly connected with the winding shaft to axially limit the winding shaft, so that the winding shaft can do linear reciprocating motion on the workbench between the transverse wire clamping device and the workbench between the vertical wire pressing device and the reduction gearbox along with the sliding table.
The string limiting device comprises a transverse wire clamping device and a vertical wire pressing device. The transverse wire clamping device comprises a first air cylinder and a second air cylinder, and the free end of the piston rod of the first air cylinder and the free end of the piston rod of the second air cylinder are arranged oppositely and are coaxial. Thus, when the first cylinder and the second cylinder are in the extending state, the string is clamped, namely the string is clamped in the axial direction of the string; when the first cylinder and the second cylinder are in the retracted state, the string is relaxed.
The vertical line pressing device comprises a first upright, a second upright, a pressure rod and a third air cylinder, wherein the first upright and the second upright are parallel; the compression bar is vertical to the first upright post and the second upright post, two sleeves are arranged at two ends of the compression bar and are respectively sleeved on the first upright post and the second upright post, and then the two sleeves are driven by the third cylinder to be in sliding fit with the first upright post and the second upright post; the axis of the third cylinder is parallel to the first upright post and the second upright post, and the free end of a piston rod of the third cylinder is connected with the pressure lever.
And a sliding table limiting device capable of preventing the sliding table device from resetting is further arranged between the sliding table device and the reduction gearbox, and the sliding table limiting device comprises a sixth air cylinder and a limiting block fixed on a piston rod of the air cylinder. The cylinder of the sliding table limiting device stretches out and draws back to enable the sliding table device to reset or not reset, so that the two sections of twist sections are guaranteed to be wound.
The workstation on be close to the one end of wire winding hook still be equipped with the through-hole that supplies string one end to insert in clamping device, the string gets into in clamping device with fixing it through the through-hole like this.
The clamping device comprises a fifth cylinder, a swing rod, an upper pressing block, a lower pressing block, a chuck, a spring and a second fixing frame fixed on the workbench; the second fixing frame consists of an upper frame plate, a lower frame plate and support plates arranged on the upper frame plate and the lower frame plate, the lower frame plate is fixed on the workbench by bolts, and the lower frame plate and the support plates are not shown in the figure; one end of the swing rod is hinged to a piston rod of the fifth cylinder, the other end of the swing rod is hinged to the upper frame plate, the swing rod and the upper frame plate are both hinged in a common mode, and the specific structure of the swing rod is not detailed herein; one end of the swing rod, which is far away from the fifth cylinder, is also abutted against the upper pressing block so as to abut against the upper pressing block to act; the spring is arranged in a cavity formed by the upper pressing block and the lower pressing block, one end of the spring is abutted against the upper pressing block, and the other end of the spring is abutted against the lower pressing block; the lower pressure block is fixedly connected to the upper frame plate by a screw; the clamping head is embedded in the upper frame plate; the chuck in still be equipped with the string through-hole that supplies the string to insert between supreme briquetting and the lower briquetting, this through-hole string communicates with each other with the through-hole, the string stretches into between supreme briquetting and the lower briquetting through-hole, string through-hole like this, compress tightly down the briquetting through last briquetting and come the tight string of clamp.
The bass string winding machine of this structure has better effect and effect through many years's practical back, though in the aspect of material saving, production efficiency height, easy operation and yield height, nevertheless still has following technical problem:
1. when the string is installed in the button winding machine, one end of the string is required to be vertically aligned to the through hole of the clamping device, and then the string is bent, the bending is generally realized manually by an operator, and the string cannot be continuously fed by other devices, so that the feeding efficiency is reduced.
2. After the string is installed in the button winding machine, the string is clamped through the clamping device, and the end needs to be punched and cut once, so that the length requirement of the winding part of the end is guaranteed, a procedure is additionally added, and the processing efficiency is reduced.
3. Through the winding hook, and rotate the winding hook and carry out the winding, the shape of the winding that is connected with the winding hook can't be unified like this because the winding hook only hooks one of them minority of winding, leads to the winding overall dimension of string can't keep the unanimity, and also can't process the winding of different size requirements.
Disclosure of Invention
The invention aims to solve the technical problem of providing a piano string winding device which does not need to be bent in the early stage, can directly feed and automatically form a linear string, can ensure the length requirement of a winding part at the end part, has higher processing efficiency and can possibly ensure the external dimension of a winding.
The technical scheme of the invention is that the piano string winding and buckling device with the following structure is provided, and comprises a clamping machine body, a winding device, a winding machine head and a feeding platform, wherein the winding device is positioned at the front end of the clamping machine body; the utility model discloses a winding device, including feeding platform, locating column, pivot and the first section of bending, the first section of bending that is tight organism of winding device, the first section of bending that is tight organism of feeding platform to the position of pressing from both sides tight organism and press from both sides tightly is sent into from the feeding platform in succession, and the one end of string stretches out tight organism of clamp and passes the winding device, and pivot and the locating column of establishing on the winding device rotate, bend the one end of string and form winding and the first section of bending, the top at the pivot is established to the locating column, and pivot and locating column contract to the winding device along the axial after bending in, establish the wire winding splint lateral shifting at wire winding aircraft nose front end and be close to tight organism of clamp and press from both sides tight winding, be equipped with first clamp plate in the tight.
The clamping machine body further comprises a machine base and a second pressing plate capable of lifting up and down, coaxial through holes are formed in the second pressing plate and the machine base, the first pressing plate penetrates through the through holes and is driven by an air cylinder to stretch up and down, a long groove is formed in the top of the machine base, the bottom of a string is embedded into the long groove, one end of the long groove penetrates to one end close to the winding device, and the string mounted in the long groove is lower than the rotating shaft and the positioning column in height;
and a third pressing plate which can be lifted up and down is arranged above the winding device, and the string is pressed downwards before the string is bent into a winding.
The bottom surface of the third pressing plate is a step surface; when the first pressing plate is pressed downwards, the string is pressed by the lower bottom surface in the step surface, a space is formed between the lower bottom surface in the step surface and the table surface of the winding device, and the first bending section penetrates through the space after winding and enters the bottom of the second pressing plate.
The machine base is provided with a long hole, a telescopic positioning block is further arranged in the long hole, and a second bending section bent by the first pressing plate is embedded into the long hole and abuts against the side face of the telescopic positioning block; the telescopic positioning block translates in a direction close to the coil device while the first winding section is formed, and the second bending section translates in a direction close to the coil device.
The winding machine head further comprises a speed reducing motor, the winding clamp plate is connected with the speed reducing motor through a connecting shaft, the speed reducing motor drives the winding clamp plate to rotate, the connecting shaft is axially and slidably connected with the motor base, the winding clamp plate is close to the winding device to clamp a winding, the winding clamp plate comprises an upper clamping piece and a lower clamping piece, the upper clamping piece stretches up and down and is driven by an air cylinder, in an initial state, the clamping piece positioned below is lower than the winding, and the clamping piece positioned above is higher than the winding; in the clamping state, the upper clamping piece and the lower clamping piece are close to each other and clamp the winding.
The rotating shaft is positioned in the center of rotation, the positioning column is positioned beside the rotating shaft, and the outer diameter of the string is arranged between the positioning column and the rotating shaft at a distance; during work, the positioning column is bent: initial state: the positioning column and the rotating shaft are positioned right below the extended strings, and the space between the positioning column and the rotating shaft corresponds to the positions of the strings up and down at the moment; the first step is as follows: the rotating shaft rises, so that the space between the positioning column and the rotating shaft clamps the strings above, and meanwhile, the strings in the clamping machine body are tightly pressed; the second step is that: the rotating shaft circumferentially rotates along the direction close to the clamping machine body, and the strings are bent by the positioning columns to form a first arc angle; the third step: the pivot is reverse circumference once more and rotates, and the reference column is bent the string and is formed the winding.
And in the third step, a winding is formed firstly, the first bending section enters the clamping machine body in the bending process, the clamping machine body compresses the first bending section, the positioning column is rotated to form a second arc angle, and finally the first bending section is approximately parallel to the strings in the clamping machine body.
The bottom of the rotating shaft is connected with an air cylinder, and the air cylinder drives the rotating shaft to lift up and down; the initial state is descending, and the string rises after stretching out the frame, makes the string imbed the space between reference column and pivot, rises before bending the winding, and the winding descends again after forming.
When the first winding section is wound, the distance between the second pressing plate and the base is larger than the height of the first winding section, the winding clamping plate clamps the winding and rotates, the string and the first bending section start to be wound, meanwhile, the telescopic positioning block translates along the direction close to the winding device, and the second bending section translates along the direction close to the winding device.
After the first winding section is finished, the winding clamping plate clamps the winding to continue rotating, the second bending section is wound on the string, and the string is linear at the moment.
By adopting the structure, compared with the prior art, the invention has the following advantages:
1. owing to adopt horizontal pay-off, can follow the pay-off platform and directly send into the string of straight line shape in pressing from both sides tight organism, then press from both sides tight processing again, be fit for automated production like this, compare prior art's manual work and bend, greatly increased pay-off efficiency and machining efficiency, reduce the cost of labor.
2. After the feeding is in place, the next bending procedure is directly carried out without stamping and cutting, one procedure is saved, and the processing efficiency is increased.
3. The winding is realized by adopting the rotating shaft and the positioning column, so that the appearance of the winding is attached to the rotating shaft, namely, the strings are bent around the rotating shaft through the positioning column, the winding can be made to be circular, and the size of the winding can also be ensured; in addition, when the string is wound, the whole winding is clamped, and the deformation of the winding can be avoided.
Drawings
FIG. 1 is a schematic view of the apparatus of the present invention after feeding.
FIG. 2 is a schematic view of the structure of the coil formed by the apparatus of the present invention.
FIG. 3 is a schematic view of the clamping body in the state of FIG. 2
Fig. 4 is a schematic view of the structure of the inventive string-formed coil.
Fig. 5 is a schematic diagram of the device of the present invention forming a second bending section.
FIG. 6 is a schematic view of the clamping body in the state of FIG. 5
Fig. 7 is a schematic view of the structure of the string forming the second folded section of the present invention.
Fig. 8 is a schematic structural diagram of the device of the invention for forming the first winding section.
FIG. 9 is a schematic view of the clamping body in the state of FIG. 8
Fig. 10 is a schematic structural view of a string forming first winding section of the present invention.
Fig. 11 is a schematic diagram of the structure of the device of the present invention for forming the second winding section.
FIG. 12 is a schematic view of the clamping body in the state of FIG. 11
Fig. 13 is a schematic view of the structure of the string of the present invention forming the second wound section.
Shown in the figure:
1. the winding machine comprises a clamping machine body, 1.1 parts, a machine base, 1.1.1 parts, long grooves, 1.1.2 parts, long holes, 1.2 parts, a second pressing plate, 1.3 parts, a third pressing plate, 2 parts, a winding device, 2.1 parts, a rotating shaft, 2.2 parts, a positioning column, 3 parts, a winding machine head, 3.1 parts, a winding clamping plate, 4 parts, a feeding platform, 5 parts, a first pressing plate, 6 parts, a telescopic positioning block, 7 parts and a speed reducing motor,
101. string 102, winding 103, first bending section 104, second bending section 105, first winding section 106, second winding section 107 and second arc angle.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1 to 13, the piano string winding device of the present invention comprises a clamping body 1, a winding device 2, a winder head 3 and a feeding table 4.
The winding device 2 is positioned at the front end of the clamping machine body 1, the feeding platform 4 is positioned in the clamping machine body 1, the winding machine head 3 is positioned at the other side of the winding device 2, and a space is arranged between the winding machine head and the winding device 2; the linear string 101 is continuously fed from the feeding table 4 to the position of the clamping body 1 and clamped, and one end of the string extends out of the clamping body 1 and passes through the winding device 2.
The rotating shaft 2.1 and the positioning column 2.2 arranged on the winding device 2 rotate to bend one end of the string and form a winding 102 and a first bending section 103, the positioning column 2.2 is arranged on the top of the rotating shaft 2.1, and after bending, the rotating shaft 2.1 and the positioning column 2.2 are retracted into the winding device 2 along the axial direction.
The winding clamp plate 3.1 arranged at the front end of the winding machine head 3 moves transversely close to the clamping body 1 and clamps the winding 102, a first pressure plate 5 is arranged in the clamping body 1, and the first pressure plate 5 presses downwards a second bending section 104 formed by a first bending section 103.
The winding cleat 3.1 turns the winding 102 circumferentially and forms a first winding section 105 and a second winding section 106 of the string.
The clamping machine body 1 further comprises a machine base 1.1 and a second pressing plate 1.2 capable of ascending and descending up and down, coaxial through holes are formed in the second pressing plate 1.2 and the machine base 1.1, the first pressing plate 5 penetrates through the through holes and is driven by an air cylinder to stretch up and down, a long groove 1.1.1 is formed in the top of the machine base 1.1, the bottom of a string 101 is embedded into the long groove 1.1.1, one end of the long groove 1.1 penetrates to be close to one end of the winding device 2, and the string 101 installed in the long groove 1.1.1 is lower than the rotating shaft 2.1 and the positioning column 2.2 in height; a third pressing plate 1.3 which ascends and descends is arranged above the winding device 2, and the string 101 is pressed downwards before the string 101 bends the winding 102.
The bottom surface of the third pressing plate 1.3 is a step surface; during the pressing-down, the lower bottom surface of the step surface presses the string 101, the higher bottom surface of the step surface has a distance from the table surface of the winding device 2, and the first bending section 103 penetrates through the distance after the winding into the bottom of the second press plate 1.2.
A long hole 1.1.2 is formed in the machine base 1.1, a telescopic positioning block 6 is further arranged in the long hole 1.1.2, and a second bending section 104 bent by the first pressing plate 5 is embedded in the long hole 1.1.2 and abuts against the side face of the telescopic positioning block 6; the telescopic positioning block 6 is translated in a direction close to the coil arrangement 2 while the second bending section 104 is translated in a direction close to the coil arrangement 2 when forming the first winding section 105.
The winding machine head 3 further comprises a speed reducing motor 7, the winding clamp plate 3.1 is connected with the speed reducing motor 7 through a connecting shaft, the speed reducing motor 7 drives the winding clamp plate 3.1 to rotate, the connecting shaft is axially and slidably connected with the motor base, the winding clamp plate 3.1 is close to the winding device 2 to clamp the winding 102, the winding clamp plate 3.1 comprises an upper clamping piece and a lower clamping piece, the upper clamping piece stretches up and down and is driven by an air cylinder, in an initial state, the clamping piece positioned at the lower part is lower than the winding 102, and the clamping piece positioned at the upper part is higher than the winding 102; in the clamped state, the upper and lower jaws are brought towards each other and clamp the coil 102.
The rotating shaft 2.1 is located at the center of rotation, the positioning column 2.2 is located beside the rotating shaft 2.1, and the distance between the positioning column and the rotating shaft 2.1 is the outer diameter of the string 101; during working, the positioning column 2.2 is bent:
initial state: the positioning column 2.2 and the rotating shaft 2.1 are positioned right below the extended string 101, and the space between the positioning column 2.2 and the rotating shaft 2.1 corresponds to the position of the string 101 up and down;
the first step is as follows: the rotating shaft 2.1 rises, so that the space between the positioning column 2.2 and the rotating shaft 2.1 clamps the strings 101 above, and meanwhile, the strings 101 in the clamping machine body 1 are pressed tightly;
the second step is that: the rotating shaft 2.1 rotates circumferentially along the direction close to the clamping machine body 1, and the positioning column 2.2 bends the strings 101 to form a first arc angle 107;
the third step: the rotating shaft 2.1 rotates reversely and circularly again, and the positioning column 2.2 bends the string 101 to form a coil 102.
In the third step, the winding 102 is formed first, the first bending section 103 enters the clamping body 1 in the bending process, the clamping body 1 compresses the first bending section 103, the positioning column 2.2 is rotated to form a second arc angle 107, and finally the first bending section 103 is approximately parallel to the string 101 in the clamping body 1.
The bottom of the rotating shaft 2.1 is connected with an air cylinder, and the air cylinder drives the rotating shaft 2.1 to lift up and down; the initial state is descending, the string 101 ascends after extending out of the base 1.1, the string 101 is embedded in the space between the positioning column 2.2 and the rotating shaft 2.1, the string ascends before the winding 102 is bent, and the winding 102 descends after being formed.
When winding the first winding section 105, the second pressing plate 1.2 is spaced from the base 1.1 by a distance larger than the height of the first winding section 105, the winding clamping plate 3.1 clamps the winding 102 and rotates, the string 101 starts to wind the first bending section 103, the telescopic positioning block 6 translates in the direction close to the winding device 2, and the second bending section 104 translates in the direction close to the winding device 2. The first winding section 105 is in a twist shape.
After the first winding section 105 is completed, the winding plate 3.1 clamping winding 102 continues to rotate, and the second bending section 104 is wound on the string 101, and the string 101 is in a straight line.
String winding bending process:
feeding: as shown in fig. 1, the linear strings 101 are continuously fed into the feeding platform 4 from the feeding platform 4 to the position where the machine body 1 is clamped and clamped, before feeding, the second pressing plate 1.2 is lifted upwards, so that a distance for the strings 101 to enter is arranged between the second pressing plate and the machine base 1.1, the strings 101 enter the elongated slots 1.1.1, and the strings 101 are pressed downwards by the second pressing plate 1.2. The bottom of the string 101 is embedded in a long groove 1.1.1, and one end of the long groove 1.1.1 penetrates to the end close to the winding device 2.
(II) machining a coil: as shown in fig. 2-4, the initial state: the positioning column 2.2 and the rotating shaft 2.1 are positioned right below the extended string 101, and the space between the positioning column 2.2 and the rotating shaft 2.1 corresponds to the position of the string 101 up and down;
the first step is as follows: the rotating shaft 2.1 rises, so that the space between the positioning column 2.2 and the rotating shaft 2.1 clamps the strings 101 above, and meanwhile, the strings 101 in the clamping machine body 1 are pressed tightly;
the second step is that: the rotating shaft 2.1 rotates circumferentially along the direction close to the clamping machine body 1, and the positioning column 2.2 bends the strings 101 to form a first arc angle 107;
the third step: the rotating shaft 2.1 rotates reversely and circularly again, and the positioning column 2.2 bends the string 101 to form a coil 102.
In the third step, the winding 102 is formed first, the first bending section 103 enters the clamping body 1 in the bending process, the clamping body 1 compresses the first bending section 103, the positioning column 2.2 is rotated to form a second arc angle 107, and finally the first bending section 103 is approximately parallel to the string 101 in the clamping body 1.
The bottom of the rotating shaft 2.1 is connected with an air cylinder, and the air cylinder drives the rotating shaft 2.1 to lift up and down; the initial state is descending, the string 101 ascends after extending out of the base 1.1, the string 101 is embedded in the space between the positioning column 2.2 and the rotating shaft 2.1, the string ascends before the winding 102 is bent, and the winding 102 descends after being formed.
(III) processing a second bending section: as shown in fig. 5-7, the first pressing plate 5 downwardly presses the second bending section 104 formed by the first bending section 103, the base 1.1 is provided with a long hole 1.1.2, the long hole 1.1.2 is further provided with a telescopic positioning block 6 therein, and the second bending section 104 bent by the first pressing plate 5 is embedded into the long hole 1.1.2 and abuts against the side surface of the telescopic positioning block 6.
(IV) processing the first winding section 105: as shown in fig. 8-10, when winding the first winding section 105, the second pressing plate 1.2 is spaced from the base 1.1 by a distance larger than the height of the first winding section 105, the winding clamping plate 3.1 clamps the winding 102 and rotates, the string 101 starts to wind the first bending section 103, and the telescopic positioning block 6 translates in a direction close to the winding device 2, and the second bending section 104 translates in a direction close to the winding device 2.
(V) processing the second winding section 106: after the first winding section 105 is completed, the winding plate 3.1 clamping winding 102 continues to rotate, and the second bending section 104 is wound on the string 101, as shown in fig. 11-13, while the string 101 is in a straight line.
Claims (10)
1. The utility model provides a piano string is around spiral-lock which characterized in that: comprises a clamping machine body (1), a winding device (2), a winding machine head (3) and a feeding platform (4); the winding device (2) is positioned at the front end of the clamping machine body (1), the feeding platform (4) is positioned in the clamping machine body (1), the winding machine head (3) is positioned at the other side of the winding device (2), and a space is arranged between the winding device and the winding machine head; the linear string (101) is continuously fed into the feeding platform (4) from the feeding platform (4) to the position of the clamping machine body (1) and clamped, and one end of the string extends out of the clamping machine body (1) and penetrates through the winding device (2); the rotating shaft (2.1) and the positioning column (2.2) arranged on the winding device (2) rotate, one end of the string is bent, a winding (102) and a first bending section (103) are formed, the positioning column (2.2) is arranged at the top of the rotating shaft (2.1), and after bending, the rotating shaft (2.1) and the positioning column (2.2) are retracted into the winding device (2) along the axial direction; a winding clamping plate (3.1) arranged at the front end of a winding machine head (3) moves transversely to be close to a clamping machine body (1) and clamps a winding (102), a first pressing plate (5) is arranged in the clamping machine body (1), and the first pressing plate (5) downwards presses a second bending section (104) formed by a first bending section (103); the winding clamp (3.1) rotates the winding (102) circumferentially and forms a first winding section (105) and a second winding section (106) of the string.
2. The piano string winding device according to claim 1, wherein: the clamping machine body (1) further comprises a machine base (1.1) and a second pressing plate (1.2) capable of ascending and descending up and down, coaxial through holes are formed in the second pressing plate (1.2) and the machine base (1.1), the first pressing plate (5) penetrates through the through holes and is driven by a cylinder to stretch up and down, a long groove (1.1.1) is formed in the top of the machine base (1.1), the bottom of a string (101) is embedded into the long groove (1.1.1), one end of the long groove (1.1.1) penetrates to be close to one end of the winding device (2), and the string (101) installed in the long groove (1.1.1) is lower than the rotating shaft (2.1) and the positioning column (2.2); and a third pressing plate (1.3) which can be lifted up and down is further arranged above the winding device (2), and the strings (101) are pressed downwards before the winding (102) is bent by the strings (101).
3. The piano string winding device according to claim 2, wherein: the bottom surface of the third pressing plate (1.3) is a step surface; when the piano strings are pressed down, the bottom surface of the middle lower part of the step surface presses the piano strings (101), the bottom surface of the middle higher part of the step surface is provided with a distance with the table surface of the winding device (2), and the first bending section (103) penetrates through the distance to enter the bottom of the second pressing plate (1.2) after winding.
4. The piano string winding device according to claim 2, wherein: a long hole (1.1.2) is formed in the machine base (1.1), a telescopic positioning block (6) is further arranged in the long hole (1.1.2), and a second bending section (104) bent by the first pressing plate (5) is embedded into the long hole (1.1.2) and abuts against the side face of the telescopic positioning block (6); the telescopic positioning block (6) is translated in a direction close to the coil arrangement (2) while the first winding section (105) is formed, while the second bending section (104) is translated in a direction close to the coil arrangement (2).
5. The piano string winding device according to claim 1, wherein: the winding machine head (3) further comprises a speed reducing motor (7), the winding clamp plate (3.1) is connected with the speed reducing motor (7) through a connecting shaft, the speed reducing motor (7) drives the winding clamp plate (3.1) to rotate, the connecting shaft is axially and slidably connected with the motor base, the winding clamp plate (3.1) is close to the winding device (2) to clamp the winding (102), the winding clamp plate (3.1) comprises an upper clamping piece and a lower clamping piece, the upper clamping piece stretches up and down and is driven by an air cylinder, in an initial state, the clamping piece positioned on the lower side is lower than the winding (102), and the clamping piece positioned on the upper side is higher than the winding (102); in the clamping state, the upper clamping piece and the lower clamping piece are close to each other and clamp the winding (102).
6. The piano string winding device according to claim 1, wherein: the rotating shaft (2.1) is positioned in the rotating center, the positioning column (2.2) is positioned beside the rotating shaft (2.1), and the outer diameter of a string (101) is arranged between the positioning column and the rotating shaft; during work, the positioning column (2.2) is bent:
initial state: the positioning column (2.2) and the rotating shaft (2.1) are positioned right below the extended string (101), and the space between the positioning column (2.2) and the rotating shaft (2.1) corresponds to the position of the string (101) up and down;
the first step is as follows: the rotating shaft (2.1) rises, so that the space between the positioning column (2.2) and the rotating shaft (2.1) clamps the strings (101) above, and the strings (101) in the clamping machine body (1) are pressed tightly;
the second step is that: the rotating shaft (2.1) rotates circumferentially along the direction close to the clamping machine body (1), and the positioning column (2.2) bends the string (101) to form a first arc angle (107);
the third step: the rotating shaft (2.1) rotates reversely and circumferentially again, and the positioning column (2.2) bends the strings (101) to form a coil (102).
7. The piano string winding device according to claim 6, wherein: in the third step, a winding (102) is formed firstly, the first bending section (103) enters the clamping body (1) in the bending process, the clamping body (1) compresses the first bending section (103), the positioning column (2.2) is rotated to form a second arc angle (107), and finally the first bending section (103) is approximately parallel to the string (101) in the clamping body (1).
8. The piano string winding device according to claim 6, wherein: the bottom of the rotating shaft (2.1) is connected with an air cylinder, and the air cylinder drives the rotating shaft (2.1) to lift up and down; the initial state is descending, the string (101) ascends after extending out of the base (1.1), the string (101) is embedded into a space between the positioning column (2.2) and the rotating shaft (2.1), the string ascends before the winding (102) is bent, and the winding (102) descends after being formed.
9. The piano string winding device according to any one of claims 1 to 8, wherein: when the first winding section (105) is wound, the distance between the second pressing plate (1.2) and the base (1.1) is larger than the height of the first winding section (105), the winding clamping plate (3.1) clamps the winding (102) and rotates, the strings (101) and the first bending section (103) start to wind, meanwhile, the telescopic positioning block (6) translates in the direction close to the winding device (2), and the second bending section (104) translates in the direction close to the winding device (2).
10. The piano string winding device according to claim 9, wherein: after the first winding section (105) is finished, the wire winding clamping coil (102) continues to rotate, the second bending section (104) is wound on the string (101), and the string (101) is in a straight line shape.
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| CN202011116211.3A CN112150986B (en) | 2020-10-19 | 2020-10-19 | Piano string winding device |
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| CN202011116211.3A CN112150986B (en) | 2020-10-19 | 2020-10-19 | Piano string winding device |
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| CN112150986B (en) | 2023-12-15 |
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