CN114505916A - Clamping and cutting device for shoe last of piano hammer - Google Patents

Clamping and cutting device for shoe last of piano hammer Download PDF

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Publication number
CN114505916A
CN114505916A CN202210158485.1A CN202210158485A CN114505916A CN 114505916 A CN114505916 A CN 114505916A CN 202210158485 A CN202210158485 A CN 202210158485A CN 114505916 A CN114505916 A CN 114505916A
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CN
China
Prior art keywords
clamping
fixing plate
workbench
hammer
groove
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Granted
Application number
CN202210158485.1A
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Chinese (zh)
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CN114505916B (en
Inventor
李思思
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Jiujiang University
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Jiujiang University
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Publication of CN114505916A publication Critical patent/CN114505916A/en
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Publication of CN114505916B publication Critical patent/CN114505916B/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
    • B27B5/02—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor characterised by a special purpose only
    • B27B5/06—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor characterised by a special purpose only for dividing plates in parts of determined size, e.g. panels
    • B27B5/065—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor characterised by a special purpose only for dividing plates in parts of determined size, e.g. panels with feedable saw blades, e.g. arranged on a carriage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B29/00—Gripping, clamping, or holding devices for the trunk or log in saw mills or sawing machines; Travelling trunk or log carriages
    • B27B29/02—Clamping angles; Gripping equipment thereon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
    • B27B5/02—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor characterised by a special purpose only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
    • B27B5/16—Saw benches
    • B27B5/18—Saw benches with feedable circular saw blade, e.g. arranged on a carriage
    • B27B5/181—Saw benches with feedable circular saw blade, e.g. arranged on a carriage the saw blade being arranged underneath a work-table
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
    • B27B5/16—Saw benches
    • B27B5/18—Saw benches with feedable circular saw blade, e.g. arranged on a carriage
    • B27B5/187—Saw benches with feedable circular saw blade, e.g. arranged on a carriage the saw blade being fitted on a movable carriage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
    • B27B5/29—Details; Component parts; Accessories
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
    • Y02P40/57—Improving the yield, e-g- reduction of reject rates

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Sawing (AREA)

Abstract

The invention belongs to the technical field of mechanical equipment, and relates to a clamping and cutting device for a shoe last of a piano hammer, which comprises: the device comprises a workbench, a first fixing plate and a second fixing plate; the two movable rods are horizontally arranged between the first fixed plate and the second fixed plate, are arranged side by side and are respectively parallel to the guide grooves; the clamping blocks are transversely and uniformly arranged between the first fixing plate and the second fixing plate and positioned at the upper parts of the two movable rods, and two ends of each clamping block are movably connected with the two movable rods respectively; and the movable cutting mechanism is arranged in the guide groove and can move along the guide groove to cut the hammer lasts clamped among the clamping blocks one by one. According to the hammer last cutting device, the plurality of clamping blocks are matched with the two movable rods, so that the plurality of hammer lasts can be clamped at one time, and the cutting mechanism is matched to move, so that the plurality of hammer lasts can be cut at one time, the cutting efficiency is improved, and the normal operation of subsequent assembly is guaranteed.

Description

Clamping and cutting device for shoe last of piano hammer
Technical Field
The invention belongs to the technical field of mechanical equipment, and relates to a clamping and cutting device for a shoe last of a piano hammer.
Background
The front body of the piano is a plucked ancient piano, also called a feather keypiano. It is basically the same as the internal principle of piano, and is characterized by that in the interior of piano body a sound board and several strings are mounted. The difference is that the piano hammers strike strings to produce sound, and the plucked ancient piano uses the pluckers of the feather tube to pluck the strings to produce sound.
The hammer head is commonly called hammer head and mainly comprises a hammer head shoe tree, an inner layer felt and an outer layer felt. The hammer last is a wooden part used for connecting the felt and the hammer handle, and is generally fixed in length, but the length of the hammer last of pianos of different models may be different, and the angle of the end surface of the rear end may also be different.
At present, when the existing clamping and cutting device is used for cutting, only one hammer last can be cut at one time, the cutting efficiency is low, and the assembly progress is seriously influenced.
Disclosure of Invention
The invention aims to provide a clamping and cutting device for a piano hammer last, and the clamping and cutting device is used for solving the technical problem that the existing clamping and cutting device is low in cutting efficiency because one hammer last is cut at one time.
In order to achieve the purpose, the specific technical scheme of the clamping and cutting device for the piano hammer last is as follows:
a clamping and cutting device for a piano hammer shoe last, comprising:
the upper surface of the workbench is longitudinally provided with a guide groove;
the first fixing plate and the second fixing plate are vertically arranged on the upper surface of the workbench relatively and are respectively positioned at two ends of the workbench;
the two movable rods are horizontally arranged between the first fixed plate and the second fixed plate, are arranged side by side and are respectively parallel to the guide grooves;
the clamping blocks are transversely and uniformly arranged between the first fixing plate and the second fixing plate and positioned at the upper parts of the two movable rods, and two ends of each clamping block are movably connected with the two movable rods respectively;
and the movable cutting mechanism is arranged in the guide groove and can move along the guide groove to cut the hammer lasts clamped among the clamping blocks one by one.
The invention is also characterized in that:
wherein remove cutting mechanism includes the moving platform, the moving platform sets up in the guide way, the inside hollow structure that is of workstation, the bottom of moving platform contacts with the interior bottom of workstation, the mounting groove has been seted up to the moving platform upper surface, be provided with the annular saw in the mounting groove, the position that the side of moving platform is close to the mounting groove is provided with first motor, first motor is located inside the workstation, the lateral wall that the output of first motor passed the mounting groove is connected on the annular saw, the position that the one end of workstation is close to the mounting groove is provided with the second motor, be connected with the lead screw after the output of second motor passed the workstation lateral wall, the lead screw level vertically sets up the inside at the workstation, the other end of lead screw passes through the bearing after the moving platform and connects on the inner wall of workstation, lead screw and moving platform threaded connection.
Wherein be provided with angle adjustment mechanism between first fixed plate and the second fixed plate, angle adjustment mechanism is connected with two movable rods, and angle adjustment mechanism adjusts a plurality of grip blocks centre gripping angle through two movable rods to adjust the cutting angle of mallet last tree.
Wherein angle adjustment mechanism includes two electric putter, two electric putter levels set up between first fixed plate and two movable rod, two electric putter's one end is connected respectively on first fixed plate, two electric putter's the other end is connected respectively at the tip of two movable rod, be provided with two spacing section of thick bamboo between second fixed plate and two electric putter, two spacing section of thick bamboo's the one end of keeping away from two electric putter is connected respectively on the second fixed plate, two electric putter are close to the tip of two spacing section of thick bamboo and are located two spacing section of thick bamboos respectively, the both ends of each grip block are connected with two movable rod through the pivot respectively.
Wherein an elastic part is arranged in each limiting cylinder, one end of the elastic part is connected with the end part of the movable rod, and the other end of the elastic part is connected with the bottom of the limiting cylinder close to the second fixing plate.
Wherein the side of workstation is provided with the controller, and the controller is connected with two electric putter, first motor, second motor electricity respectively.
Wherein vertically be provided with the clamp plate between first fixed plate and the second fixed plate, the clamp plate is located the upper portion of a plurality of grip blocks, first recess and second recess have been seted up respectively to the position that first fixed plate and second fixed plate are close to the clamp plate both ends, the both ends of clamp plate are located first recess and second recess respectively, the one end of clamp plate is connected through the pivot with the inner wall of second recess, the other end and the first recess of clamp plate pass through the bolt can dismantle and be connected.
The clamping and cutting device for the piano hammer last has the following advantages:
firstly, the hammer last can be clamped at one time by the mutual matching of the clamping blocks and the two movable rods, and the cutting mechanism is moved in a matching manner, so that the hammer last can be cut at one time, the cutting efficiency is improved, the normal operation of subsequent assembly is ensured, meanwhile, the hammer last can be fixed more firmly after being clamped by the clamping blocks through the detachable arrangement of the pressing plate, and the influence on the cutting precision caused by the swinging of the hammer last in the cutting process is avoided;
secondly, the angles between the clamping blocks and the two movable rods can be adjusted through the arrangement of the angle adjusting mechanism, so that the cutting angles of the hammer last trees are adjusted, the hammer last trees can be cut again after being cut to the required length, the end parts of the hammer last trees can be cut to the required angles, all cutting processes can be solved at one time, the cutting efficiency is further improved, and the subsequent assembly process is accelerated;
and thirdly, the angle adjustment is more accurate through the arrangement of the controller and the two electric push rods, the cutting angle is ensured, the cutting precision is improved, the yield is increased, and the cost is saved.
Drawings
Fig. 1 is a schematic view showing the overall construction of a clamping and cutting device for a shoe last of a piano hammer according to the present invention;
FIG. 2 is a front view schematically showing the structure of a clamping and cutting device for a shoe last of a piano hammer according to the present invention;
FIG. 3 is a side view schematically showing the clamping and cutting means of a piano hammer last according to the present invention;
FIG. 4 is a schematic top view showing the structure of a clamping and cutting device for a shoe last of a piano hammer according to the present invention;
reference numerals:
1. a work table; 2. a first fixing plate; 3. a second fixing plate; 4. an electric push rod; 5. a movable rod; 6. a limiting cylinder; 7. a clamping block; 9. a first groove; 10. a second groove; 11. a mobile station; 12. a circular saw; 13. a guide groove; 14. a first motor; 15. a second motor; 16. a screw rod; 17. a controller; 18. mounting grooves; 19. an elastic member; 20. and (7) pressing a plate.
Detailed Description
For better understanding of the objects, structure and function of the present invention, a clamping and cutting device for a piano hammer last according to the present invention will be described in further detail with reference to the accompanying drawings.
As shown in figure 1, the clamping and cutting device for the steel hammer last comprises a workbench 1, wherein a guide groove 13 is longitudinally formed in the upper surface of the workbench 1, a first fixing plate 2 and a second fixing plate 3 are vertically arranged on the upper surface of the workbench 1, the first fixing plate 2 and the second fixing plate 3 are respectively positioned at two ends of the workbench 1 and are fixedly connected with the workbench 1, two movable rods 5 are horizontally arranged between the first fixing plate 2 and the second fixing plate 3, the two movable rods 5 are arranged side by side and are parallel to the guide grooves 13 respectively, a plurality of clamping blocks 7 are transversely and uniformly arranged between the first fixing plate 2 and the second fixing plate 3, the plurality of clamping blocks 7 are positioned at the upper parts of the two movable rods 5, two ends of the plurality of clamping blocks 7 are movably connected with the two movable rods 5 respectively, one hammer last can be clamped between two adjacent clamping blocks 7, and a plurality of lasts can be clamped through the plurality of clamping blocks 7, a movable cutting mechanism is arranged in the guide groove 13, and can move along the guide groove 13 to cut the hammer lasts clamped between the clamping blocks 7 one by one.
As shown in fig. 2 and 3, the movable cutting mechanism includes a movable table 11, the movable table 11 is disposed in a guide groove 13, the movable table 11 can slide freely along the guide groove 13, the inside of the workbench 1 is hollow, the bottom of the movable table 11 contacts with the inner bottom of the workbench 1, a mounting groove 18 is disposed on the upper surface of the movable table 11, a circular saw 12 is disposed in the mounting groove 18, part of the circular saw 12 protrudes out of the mounting groove 18 for cutting a last of a hammer, a first motor 14 is disposed on a side surface of the movable table 11 close to the mounting groove 18, the first motor 14 is disposed inside the workbench 1, an output end of the first motor 14 passes through a side wall of the mounting groove 18 and is connected to the circular saw 12, the circular saw 12 is driven to rotate by the first motor 14, a second motor 15 is disposed on one end of the workbench 1 close to the mounting groove 18, an output end of the second motor 15 passes through the side wall of the workbench 1 and is connected to a lead screw 16, the lead screw 16 is horizontally and longitudinally arranged inside the workbench 1, the other end of the lead screw 16 penetrates through the movable platform 11 and then is connected to the inner wall of the workbench 1 through a bearing, the lead screw 16 is in threaded connection with the movable platform 11, the lead screw 16 is driven by the second motor 15 to rotate, the lead screw 16 rotates to drive the movable platform 11 to move along the guide groove 13, and the guide groove is used for cutting a plurality of hammer shoe lasts one by one and cutting the hammer shoe lasts into required lengths.
As shown in fig. 4, an angle adjusting mechanism is arranged between the first fixing plate 2 and the second fixing plate 3, the angle adjusting mechanism is connected with the two movable rods 5, and the angle adjusting mechanism adjusts the clamping angle of the plurality of clamping blocks 7 through the two movable rods 5, so as to adjust the cutting angle of the hammer last.
The angle adjusting mechanism comprises two electric push rods 4, the two electric push rods 4 are horizontally arranged between a first fixed plate 2 and two movable rods 5, one ends of the two electric push rods 4 are respectively connected on the first fixed plate 2, the other ends of the two electric push rods 4 are respectively connected at the end parts of the two movable rods 5, two limiting cylinders 6 are arranged between a second fixed plate 3 and the two electric push rods 4, one ends of the two limiting cylinders 6 far away from the two electric push rods 4 are respectively connected on the second fixed plate 3, the end parts of the two electric push rods 4 close to the two limiting cylinders 6 are respectively positioned in the two limiting cylinders 6, the end parts of the electric push rods 4 can freely move in the corresponding limiting cylinders 6, two ends of each clamping block 7 are respectively connected with the two movable rods 5 through rotating shafts, one electric push rod 4 can simultaneously control the extension and the shortening of the two electric push rods 4, one electric push rod 4 drives the movable rod 5 to move towards the direction of the second fixed plate 3, the other electric push rod 4 drives the movable rod 5 to move towards the direction of the first fixing plate 2, and the two movable rods 5 move in opposite directions to change the angles of the two movable rods 5 and a plurality of clamping blocks 7 connected with the two movable rods 5, so that the angles of a plurality of hammer last trees are adjusted, the cutting angles are changed, and the hammer last trees are cut into required angles.
As shown in fig. 2, an elastic member 19 is arranged in each limiting cylinder 6, one end of the elastic member 19 is connected to the end of the movable rod 5, and the other end of the elastic member 19 is connected to the bottom of the limiting cylinder 6 close to the second fixing plate 3, so that the movable rod 5 can be subjected to the elastic action of the elastic member 19 no matter the movable rod moves towards the inside of the limiting cylinder 6 or moves away from the limiting cylinder 6, and the movable rod can be kept relatively stable in the cutting process.
The side of workstation 1 is provided with controller 17, and controller 17 is connected with two electric putter 4, first motor 14, second motor 15 electricity respectively, and required cutting angle can be inputed to controller 17, then through controlling two electric putter 4, makes angle adjustment more accurate.
The pressing plate 20 is longitudinally arranged between the first fixing plate 2 and the second fixing plate 3, the pressing plate 20 is located on the upper portions of the clamping blocks 7, the positions, close to the two ends of the pressing plate 20, of the first fixing plate 2 and the second fixing plate 3 are respectively provided with the first groove 9 and the second groove 10, the two ends of the pressing plate 20 are respectively located in the first groove 9 and the second groove 10, one end of the pressing plate 20 is connected with the inner wall of the second groove 10 through a rotating shaft, the other end of the pressing plate 20 is detachably connected with the first groove 9 through a bolt, the clamping blocks 7 can be fixed through the pressing plate 20 at one time, a plurality of hammer head shoe lasts can be fixed more firmly after being clamped by the clamping blocks 7, and the phenomenon that the shoe lasts shake in the cutting process is avoided, and the cutting precision is affected is avoided.
The working principle is as follows: when the hammer shoe tree cutting device is used, firstly, the bolt at one end of the pressing plate 20 is detached, the pressing plate 20 is lifted, then a plurality of hammer shoe trees are sequentially placed on the two movable rods 5 between the two adjacent clamping blocks 7, the hammer shoe trees in the adjacent clamping blocks 7 are clamped, then the pressing plate 20 is rotated, the end part of the pressing plate 20 is placed in the first groove 9 and fixed through the bolt, the hammer shoe trees are fixed in the first groove, the first motor 13 and the second motor 15 are started through the controller 17, the circular saw 12 is driven by the first motor 13 to rotate at a high speed, the lead screw 16 is driven by the second motor 15 to rotate, the movable platform 11 is driven by the lead screw 16 to move along the guide groove 13, the hammer shoes are cut one by one, the required length is cut, then, the bolt at one end of the pressing plate 20 is detached again, the pressing plate 20 is lifted, the length of the hammer shoe trees extending out of the two clamping blocks 7 is adjusted, and the hammer shoe trees can be cut by the circular saw 12 in an inclined state, then the controller 17 controls two electric push rods 4 to be started simultaneously, controls one to be extended, controls the other to be shortened, one electric push rod 4 drives the movable rod 5 to move towards the second fixing plate 3, the other electric push rod 4 drives the movable rod 5 to move towards the first fixing plate 2, the two movable rods 5 move in opposite directions to change the angles of a plurality of clamping blocks 7 connected with the two movable rods 5 and the two movable rods 5, so that a plurality of shoe lasts deviate towards the advancing direction of the moving platform 11, then the movable cutting mechanism is started to cut the plurality of hammer shoe lasts one by one, one corner of each end part of each hammer shoe last is cut off, then the steps are repeated, the angles of the plurality of hammer shoe lasts are adjusted again to deviate to the positions symmetrical to the previous positions, the movable cutting mechanism is started again to cut the plurality of hammer shoe lasts one by one, and the other corner of each end part of each hammer shoe last is cut off, and cutting each hammer last into a required triangle.
The clamping and cutting device for the piano hammer last has the following advantages:
firstly, the hammer last can be clamped at one time through the mutual matching of the clamping blocks and the two movable rods, and the cutting mechanism is moved in a matching manner, so that the hammer last can be cut at one time, the cutting efficiency is improved, the normal operation of subsequent assembly is guaranteed, meanwhile, the hammer last can be fixed more firmly after being clamped by the clamping blocks through the detachable arrangement of the pressing plate, and the influence on the cutting precision caused by the swinging of the hammer last in the cutting process is avoided;
secondly, the angles between the clamping blocks and the two movable rods can be adjusted through the arrangement of the angle adjusting mechanism, so that the cutting angles of the hammer last trees are adjusted, the hammer last trees can be cut again after being cut to the required length, the end parts of the hammer last trees can be cut to the required angles, all cutting processes can be solved at one time, the cutting efficiency is further improved, and the subsequent assembly process is accelerated;
and thirdly, the angle adjustment is more accurate through the arrangement of the controller and the two electric push rods, the cutting angle is ensured, the cutting precision is improved, the yield is increased, and the cost is saved.
It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims (7)

1. A clamping and cutting device for a shoe last of a piano hammer, comprising:
the upper surface of the workbench (1) is longitudinally provided with a guide groove (13);
the first fixing plate (2) and the second fixing plate (3) are vertically arranged on the upper surface of the workbench (1) relatively and are respectively positioned at two ends of the workbench (1);
the two movable rods (5) are horizontally arranged between the first fixed plate (2) and the second fixed plate (3), are arranged side by side and are respectively parallel to the guide grooves (13);
the clamping blocks (7) are transversely and uniformly arranged between the first fixing plate (2) and the second fixing plate (3) and positioned at the upper parts of the two movable rods (5), and two ends of the clamping blocks are respectively movably connected with the two movable rods (5);
and the movable cutting mechanism is arranged in the guide groove (13) and can move along the guide groove (13) to cut the hammer lasts clamped among the clamping blocks (7) one by one.
2. The clamping and cutting device of the piano hammer last according to claim 1, wherein the moving and cutting mechanism comprises a moving table (11), the moving table (11) is arranged in a guide groove (13), the interior of the workbench (1) is of a hollow structure, the bottom of the moving table (11) is in contact with the inner bottom of the workbench (1), a mounting groove (18) is formed in the upper surface of the moving table (11), a circular saw (12) is arranged in the mounting groove (18), a first motor (14) is arranged on the side surface of the moving table (11) close to the mounting groove (18), the first motor (14) is arranged inside the workbench (1), the output end of the first motor (14) penetrates through the side wall of the mounting groove (18) and is connected to the circular saw (12), a second motor (15) is arranged on one end of the workbench (1) close to the mounting groove (18), the output end of the second motor (15) penetrates through the side wall of the workbench (1) and then is connected with a screw rod (16), the screw rod (16) is horizontally and longitudinally arranged inside the workbench (1), the other end of the screw rod (16) penetrates through the mobile platform (11) and then is connected onto the inner wall of the workbench (1) through a bearing, and the screw rod (16) is in threaded connection with the mobile platform (11).
3. The clamping and cutting device of the piano hammer last according to claim 2, wherein an angle adjusting mechanism is arranged between the first fixing plate (2) and the second fixing plate (3), the angle adjusting mechanism is connected with the two movable rods (5), and the angle adjusting mechanism adjusts the clamping angle of the plurality of clamping blocks (7) through the two movable rods (5), so that the cutting angle of the hammer last is adjusted.
4. The clamping and cutting device of the piano hammer last according to claim 3, wherein the angle adjusting mechanism comprises two electric push rods (4), the two electric push rods (4) are horizontally arranged between a first fixed plate (2) and two movable rods (5), one ends of the two electric push rods (4) are respectively connected to the first fixed plate (2), the other ends of the two electric push rods (4) are respectively connected to the end parts of the two movable rods (5), two limiting cylinders (6) are arranged between the second fixed plate (3) and the two electric push rods (4), one ends of the two limiting cylinders (6) far away from the two electric push rods (4) are respectively connected to the second fixed plate (3), the end parts of the two electric push rods (4) close to the two limiting cylinders (6) are respectively positioned in the two limiting cylinders (6), two ends of each clamping block (7) are respectively connected with the two movable rods (5) through rotating shafts.
5. The clamping and cutting device of the piano hammer last according to claim 4, wherein an elastic member (19) is arranged in each limiting cylinder (6), one end of the elastic member (19) is connected to the end of the movable rod (5), and the other end of the elastic member (19) is connected to the bottom of the limiting cylinder (6) close to the second fixing plate (3).
6. The clamping and cutting device of the piano hammer last according to claim 4, wherein a controller (17) is arranged on the side surface of the workbench (1), and the controller (17) is electrically connected with the two electric push rods (4), the first motor (14) and the second motor (15) respectively.
7. The clamping and cutting device for the piano hammer last according to claim 1, wherein a pressing plate (20) is longitudinally arranged between the first fixing plate (2) and the second fixing plate (3), the pressing plate (20) is located at the upper portion of the clamping blocks (7), a first groove (9) and a second groove (10) are respectively formed in the positions, close to two ends of the pressing plate (20), of the first fixing plate (2) and the second fixing plate (3), two ends of the pressing plate (20) are respectively located in the first groove (9) and the second groove (10), one end of the pressing plate (20) is connected with the inner wall of the second groove (10) through a rotating shaft, and the other end of the pressing plate (20) is detachably connected with the first groove (9) through a bolt.
CN202210158485.1A 2022-02-21 2022-02-21 Clamping and cutting device for shoe last of piano hammer Active CN114505916B (en)

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Application Number Priority Date Filing Date Title
CN202210158485.1A CN114505916B (en) 2022-02-21 2022-02-21 Clamping and cutting device for shoe last of piano hammer

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Application Number Priority Date Filing Date Title
CN202210158485.1A CN114505916B (en) 2022-02-21 2022-02-21 Clamping and cutting device for shoe last of piano hammer

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CN114505916A true CN114505916A (en) 2022-05-17
CN114505916B CN114505916B (en) 2022-09-02

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN211440173U (en) * 2019-12-25 2020-09-08 天津市桐羽浩博纸制品有限公司 Rough processing cutting device for long roll paper
CN112277079A (en) * 2020-10-15 2021-01-29 德清县华美罗宾钢琴有限公司 Quick cutting device of piano hammer stick
CN112405706A (en) * 2020-10-15 2021-02-26 德清县华美罗宾钢琴有限公司 Clamping and cutting device for multi-length piano hammer rod

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN211440173U (en) * 2019-12-25 2020-09-08 天津市桐羽浩博纸制品有限公司 Rough processing cutting device for long roll paper
CN112277079A (en) * 2020-10-15 2021-01-29 德清县华美罗宾钢琴有限公司 Quick cutting device of piano hammer stick
CN112405706A (en) * 2020-10-15 2021-02-26 德清县华美罗宾钢琴有限公司 Clamping and cutting device for multi-length piano hammer rod

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