CN208899112U - A kind of row's needle assemblies and the pre- whole sound pricker machine of piano hammerhead - Google Patents
A kind of row's needle assemblies and the pre- whole sound pricker machine of piano hammerhead Download PDFInfo
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- CN208899112U CN208899112U CN201821636380.8U CN201821636380U CN208899112U CN 208899112 U CN208899112 U CN 208899112U CN 201821636380 U CN201821636380 U CN 201821636380U CN 208899112 U CN208899112 U CN 208899112U
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- row
- hammerhead
- needle
- pricker
- gear
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Abstract
本实用新型涉及一种排针组件，包括排针压紧体和安装在排针压紧体上的多个刺针，多个刺针通过活动压紧块在排针压紧体的下部；还涉及一种采用上述排针组件的钢琴弦槌预整音刺针机，还包括底座、设于底座上的弦槌安装装置和立柱，排针组件可上下移动的安装在立柱上，排针组件位于弦槌安装装置的上方，弦槌安装装置包括安装座、弦槌安装本体和带动所述弦槌安装本体转动的转动机构，安装座包括底板和设于底板上的两侧板，弦槌安装本体通过转轴安装在两所述侧板之间，弦槌安装本体包括弦槌安装部和活动压板，活动压板与弦槌安装部通过调节螺钉连接；采用本实用新型改善弦槌硬度时，劳动强度低，效率高。
The utility model relates to a needle-arranging assembly, comprising a needle-arranging pressing body and a plurality of puncturing needles mounted on the needle-arranging pressing body. A piano hammer pre-tuning needle machine using the above-mentioned needle arrangement, further comprising a base, a hammer installation device arranged on the base and a column, the needle arrangement can be moved up and down and installed on the column, and the needle arrangement is located on the hammer Above the installation device, the hammer installation device includes an installation seat, a hammer installation body and a rotating mechanism that drives the hammer installation body to rotate. The installation seat includes a bottom plate and two side plates arranged on the bottom plate, and the hammer mounting body passes through the rotating shaft. Installed between the two side plates, the hammer installation body includes a hammer installation part and a movable pressure plate, and the movable pressure plate and the hammer installation part are connected by adjusting screws; when the utility model is used to improve the hardness of the hammer, the labor intensity is low and the efficiency is low. high.
Description
Technical field
The utility model relates to the pre- whole sound pricker machines of a kind of row's needle assemblies and piano hammerhead.
Background technique
In the production process, due to the extruding by hammerhead wooden core, the density of felt will increase piano hammerhead, especially exist
Mallet Guan Chu；Those issue the hammerhead of sharp tone color, usually because the hardness of mallet hat is very high and no elastic；In order to allow every frame steel
The tone color that qin can all have can measure the hardness number of piano hammerhead felt in process of production, when felt hardness is more than index
When, the method taken first is the two sides of needle thorn hammerhead, reduces the tension of hammerhead two sides, and the tension for enabling mallet to be preced with is alleviated, table
Face pulling force reduces, and the tension decline of hammerhead felt, hammerhead felt elasticity is released, and hammerhead has obtained elastic buffer when hitting string,
Make hammerhead hit string and last slightly to extend, high order partials are reduced, and tone color can become fine and smooth and full.
General man-hour manually hand-held row needle tool carries out pricker in the prior art, artificial to pierce since the density of hammerhead felt is larger
Needle is very hard, and efficiency is very low, and not can guarantee consistency.
Utility model content
The utility model in view of the deficiency of the prior art, provides a kind of time saving and energy saving and consistency preferable steel
The pre- whole sound pricker machine of string mallet.
The technical solution that the utility model solves above-mentioned technical problem is as follows: a kind of row's needle assemblies, including row's needle fastening body
With the multiple prickers being mounted on row's needle fastening body, multiple prickers pass through movable compact heap and are arranged in row's needle pressure
The lower part of tight body.
The beneficial effect of the utility model row's needle assemblies is: being easy to implement the automation of hammerhead pricker, row's needle assemblies
Multiple prickers are equipped with, efficiency is higher.
Further, the movable compact heap is compressed the pricker by row's needle housing screw.
Further, compression frame is additionally provided between row's needle housing screw and the movable compact heap.
Beneficial effect using above-mentioned further technical solution is: using the structure for compressing frame, arranging in this way only with one
Needle housing screw can compress multiple prickers, do not need each pricker and correspond to a housing screw, structure is simple.
Further, the U-shaped structure of the compression frame, the positioning groove of the compact heap two sides, the compact heap are located at institute
It states in the U-shaped structure for compressing frame；Compact heap is not fallen off under the limitation for compressing frame in this way.
Further, the top of row's needle fastening body is equipped with cylindrical installing handle, and middle part is in rectangular block architecture, the rectangle
The side of block structure lower part is equipped with concave station compatible with the activity compact heap, and the concave station is equipped with the vertical pricker of a row
Placing groove, the pricker are placed in the pricker placing groove.
Further, the lower part of row's needle fastening body is additionally provided in the one-to-one pricker offset limit of the pricker placing groove
Position slot, the pricker offset limiting slot is located at the lower part of the pricker placing groove, and the width of pricker offset limiting slot is big
In the width of the pricker placing groove.
Beneficial effect using above-mentioned further technical solution is: since the influence row by felt internal structure is needled into
Axially free offset can occur for needle point when hammerhead felt, offset limiting slot can the row of limitation needle offset, making to arrange needle only can be elastic
Offset is not in row's needle permanent bending deformation.
Further, the vertical pricker placing groove of a row includes 3 pricker placing grooves.
Further, when the lower part of row's needle fastening body and the movable compact heap are closed, triangle mount structure is formed.
The utility model further relates to a kind of pre- whole sound pricker machine of the piano hammerhead using above-mentioned row's needle assemblies, further includes bottom
Seat, hammerhead mounting device and column on pedestal, row's needle assemblies are moving up and down to be mounted on the column, institute
The row's of stating needle assemblies are located at the top of the hammerhead mounting device, and the hammerhead mounting device includes mounting base, hammerhead installation ontology
With the rotating mechanism for driving hammerhead installation ontology rotation, the mounting base includes bottom plate and both side plate set on the bottom plate,
The hammerhead installation ontology is mounted between the both side plate by shaft, and the hammerhead installation ontology includes hammerhead mounting portion,
The side of the hammerhead mounting portion is equipped with the groove for installing hammerhead, and the hammerhead installation ontology further includes movable pressing board, institute
It states movable pressing board and is connect with the hammerhead mounting portion by adjusting screw, and the movable pressing board is adapted with the groove.
The beneficial effect of the pre- whole sound pricker machine of piano hammerhead is in the utility model: semi-automatic hammerhead thorn may be implemented
Needle, do not exert a force manually pricker, greatly reduces labor intensity；And pricker efficiency can be greatly improved.
Further, opening stop screw, the opening limit are additionally provided between the movable pressing board and the hammerhead mounting portion
Pressing plate reset spring is socketed on the screw of position.
Beneficial effect using above-mentioned further technical solution is: convenient for removing hammerhead, unclamping after adjusting screw, by opening
Stop screw and pressing plate reset spring, automatically open movable pressing board, take out hammerhead.
Further, the rotating mechanism includes the first support being set on the bottom plate, first in first support
Handwheel, the worm screw connecting with first handwheel and worm gear compatible with the worm screw, the worm gear are connect with the shaft.
Further, the both ends of the hammerhead mounting portion are respectively equipped with baffle, and it is lateral that the baffle of one end is equipped with hammerhead
Clamping screw.
Beneficial effect using above-mentioned further technical solution is: can preferably be positioned to hammerhead.
It further, further include the left/right movement device for moving left and right the hammerhead mounting device, it is described to move left and right machine
The first gear that structure includes the second handwheel, with the second handwheel connect second hand wheel shaft, is arranged on second hand wheel shaft
With the first rack gear being meshed with the first gear, first rack gear is mounted on the bottom plate of the mounting base.
It further, further include the back-and-forth motion mechanism for being moved forward and backward the hammerhead mounting device, the back-and-forth motion machine
Structure includes that third handwheel, the screw rod connecting with the third handwheel and thread bush compatible with the screw rod, the screw rod are set
It sets on the third bracket for being located at the slide unit lower end, the thread bush is set on slide unit lower end surface, and the slide unit lower end is set
There is second sliding slot, the upper surface of the pedestal is equipped with the second sliding rail compatible with the second sliding slot.
Further, the pedestal is equipped with platform, and it is sliding that the platform is equipped with compatible with the second sliding slot second
Rail.
Further, the upper surface of the slide unit is equipped with the first sliding rail, and the lower end surface of the bottom plate is equipped with to be slided with described first
The compatible first sliding groove of rail.
Further, second handwheel is arranged on the slide unit by second support.
It further, further include row's needle assemblies elevating mechanism, row's needle lifting mechanism includes being socketed on the column
Mounting rack, the second gear being arranged on mounting rack and the second rack gear engaged with the second gear are set under the rack gear
Row's needle assemblies clamping chuck at end and the hand pivoted frame with the gear axis connection of the second gear, row's needle assemblies clamping chuck
It is adapted with the cylindrical installing handle.
It further, further include row's needle reset spring, one end of row's needle reset spring is fixed on the mounting rack, separately
One end connects second rack gear.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of the utility model hammerhead mounting device；
Fig. 3 be Fig. 2 in along A-A to cross-sectional view；
Fig. 4 is the left view of Fig. 1；
Fig. 5 is the top view of Fig. 1；
Fig. 6 is the structural schematic diagram that needle assemblies are arranged in the utility model；
Fig. 7 is the structural schematic diagram that needle fastening body is arranged in the utility model；
Fig. 8 is the right view of Fig. 7；
Fig. 9 is the structural schematic diagram of movable compact heap in the utility model；
Figure 10 is the left view of Fig. 9；
In the accompanying drawings, list of designations represented by each label is as follows: 1, pedestal, 2, platform, 2-1, the second sliding rail, 3,
Slide unit, 3-1, the first sliding rail, 3-2, second sliding slot, 4, third handwheel, 5, mounting base, 5-1, bottom plate, 5-2, first sliding groove, 5-3,
Side plate, 5-4, shaft, 5-5, first support, the 6, second handwheel, 6-1, the second hand wheel shaft, 6-2, first gear, 6-3, the first tooth
Item, 7, rotating mechanism, 7-1, the first handwheel, 7-2, worm screw, 7-3, worm gear, 8, hammerhead installation ontology, 8-1, adjusting screw, 8-2,
Be open stop screw, 8-3, movable pressing board, 8-4, hammerhead mounting portion, 8-41, baffle, 8-5, pressing plate reset spring, 8-6, hammerhead
Installation cavity, 9, the lateral clamping screw of hammerhead, 10, row's needle assemblies, 10-1, row's needle fastening body, 10-11, the top for arranging needle fastening body,
10-3,10-12, the middle part for arranging needle fastening body, 10-13, the lower part for arranging needle fastening body, 10-2, movable compact heap compress frame,
10-4, row's needle housing screw, 10-5, pricker, 10-6, concave station, 10-7, pricker placing groove, 10-8, pricker offset limiting slot, 11,
Hand pivoted frame, 12, row's needle reset spring, 13, row's needle assemblies clamping chuck, 14, first support, 15, column, 16, mounting rack, 17,
Second support, 18, the gear shaft of second gear.
Specific embodiment
The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining that this is practical
It is novel, it is not intended to limit the scope of the utility model.
As shown in Fig. 6-Figure 10, a kind of row's needle assemblies, including arrange needle fastening body 10-1 and be mounted on row's needle fastening body
Multiple pricker 10-5 on 10-1, multiple pricker 10-5 are arranged by activity compact heap 10-2 in row's needle fastening body
The lower part of 10-1.
The activity compact heap 10-2 is compressed the pricker 10-5 by arranging needle housing screw 10-4.
It is additionally provided between row's needle housing screw 10-4 and the movable compact heap 10-2 and compresses frame 10-3, the compression
The U-shaped structure of frame 10-3, the opening for compressing frame 10-3 are fixed on the two sides of row's needle fastening body 10-1, row's needle
Housing screw 10-4 holds out against the movable compact heap 10-2 after passing through the compression frame 10-3.
The top 10-11 of row's needle fastening body is equipped with cylindrical installing handle, and middle part 10-12 is in rectangular block architecture, described
The side of rectangular block architecture lower part is equipped with concave station 10-6 compatible with the activity compact heap 10-2, sets on the concave station 10-6
There are the pricker placing groove 10-7 that a row is vertical, the pricker 10-5 to be placed in the pricker placing groove 10-7.
The lower part 10-13 of row's needle fastening body is additionally provided in the one-to-one pricker offset of the pricker placing groove 10-7
Limiting slot 10-8, the pricker offset limiting slot 10-8 is located at the lower part of the pricker placing groove 10-7, and the pricker deviates
The width of limiting slot 10-8 is greater than the width of the pricker placing groove 10-7.
The vertical pricker placing groove 10-7 of one row includes 3 pricker placing groove 10-7.
When the lower part 10-13 of the row's needle fastening body and activity compact heap 10-2 is closed, triangle mount structure is formed.
Also is provided with pricker placing groove 10-7 and pricker offset limiting slot 10-8 on the activity compact heap 10-2, and with it is described
Pricker placing groove 10-7 and pricker offset the limiting slot 10-8 arranged on needle fastening body 10-1 is corresponded.
The utility model further relates to a kind of pre- whole sound pricker machine of the piano hammerhead using above-mentioned row's needle assemblies, such as Fig. 1-Figure 10
It is shown, it further include pedestal 1, hammerhead mounting device 8 and column 15 on pedestal 1, row's needle assemblies 10 can move up and down
Be mounted on the column 15, row's needle assemblies 10 are located at the top of the hammerhead mounting device, the hammerhead installation dress
It sets including mounting base, hammerhead installation ontology 8 and the rotating mechanism 7 for driving the hammerhead installation ontology 8 to rotate, the mounting base 5
Both side plate 5-3 including bottom plate 5-1 and on bottom plate 5-1, the hammerhead installation ontology 8 is mounted on described by shaft 5-4
Between the two side plate 5-3, the hammerhead installation ontology 8 includes hammerhead mounting portion 8-4, the side of the hammerhead mounting portion 8-4
Equipped with the groove for installing hammerhead, the hammerhead installation ontology 8 further includes movable pressing board 8-3, the movable pressing board 8-3 and institute
Hammerhead mounting portion 8-4 is stated by adjusting screw 8-1 connection, and the movable pressing board 8-3 is adapted with the groove.
Opening stop screw 8-2, the opening are additionally provided between the movable pressing board 8-3 and the hammerhead mounting portion 8-4
Pressing plate reset spring 8-5 is socketed on stop screw 8-2.
The rotating mechanism 7 include first support 5-5 on the bottom plate 5-1, in first support 5-5 the
One handwheel 7-1, with the first handwheel 7-1 the worm screw 7-2 connecting and worm gear 7-3 compatible with the worm screw 7-2, the snail
Wheel 7-3 is connect with the shaft 5-4.
The both ends of the hammerhead mounting portion 8-4 are respectively equipped with baffle 8-41, and the baffle 8-41 of one end is equipped with hammerhead
Lateral clamping screw 9.
It further include the left/right movement device for moving left and right the hammerhead mounting device, the left/right movement device includes the
Two handwheels 6, the first gear for connecting the second hand wheel shaft 6-1 with the second handwheel 6, being arranged on the second hand wheel shaft 6-1
6-2 and the first rack gear 6-3, the first rack gear 6-3 being meshed with the first gear 6-2 are mounted on the bottom of the mounting base
On plate 5-1.
It further include the back-and-forth motion mechanism for being moved forward and backward the hammerhead mounting device, the back-and-forths motion mechanism includes the
Three handwheels 4, the screw rod connecting with the third handwheel 4 and thread bush compatible with the screw rod, the screw rod setting are in place
In on the third bracket of 3 lower end of slide unit, the thread bush is set on 3 lower end surface of slide unit, and 3 lower end of the slide unit is equipped with the
Two sliding slot 3-2, the pedestal 1 are equipped with platform 2, and it is sliding that the platform 2 is equipped with compatible with the second sliding slot 3-2 second
Rail 2-1.
The upper surface of the slide unit 3 is equipped with equipped with the lower end surface of the first sliding rail 3-1, the bottom plate 5-1 and slides with described first
The compatible first sliding groove 5-2 of rail 3-1.
Second handwheel 6 is arranged on the slide unit 3 by second support 17.
It further include row's needle assemblies elevating mechanism, row's needle lifting mechanism includes the installation being socketed on the column 15
Frame 16, the second gear being arranged on mounting rack 16 and the second rack gear engaged with the second gear are set under the rack gear
Row's needle assemblies at end clamping chucks 13 and the hand pivoted frame 11 that connect with the gear shaft 18 of the second gear, row's needle assemblies folder
Tight clamp 13 is adapted with the cylindrical installing handle.
It further include row's needle reset spring 12, one end of row's needle reset spring 12 is fixed on the mounting rack 16, separately
One end connects second rack gear.
The course of work of the pre- whole sound pricker machine of piano hammerhead is as follows in the utility model:
1) third handwheel 4 is adjusted, hammerhead mounting device is moved forward, close to operator；
2) it unclamps and adjusts screw 8-1, whole hammerheads in an area Ge Yin are packed into hammerhead mounting portion 8-4 one by one and activity is pressed
In cavity between plate 8-3, which is denoted as hammerhead installation cavity 8-6, then adjusts the lateral clamping screw 9 of hammerhead for all strings
Mallet fits closely together, finally tightens and adjusts screw 8-1, hammerhead is fixed；
3) third handwheel 4 is adjusted, makes first to chase after mounting device and moves backward, until row's needle assemblies are directed at hammerhead；
4) the first handwheel 7-1 is rotated, the angle of hammerhead is adjusted；
5) hand pivoted frame 11 is rotated, is pierced into pricker 10-5 in the felt of hammerhead, after reaching depth of needle, unclamps hand pivoted frame
11, row's needle assemblies 10 automatically reset by reset spring 12；
6) the second handwheel 6 is rotated, while repeating step 5), has pierced the side of row's hammerhead all；
7) the first handwheel 7-1 is rotated, the angle of hammerhead is adjusted, then repeatedly step 5) and step 6)；
8) step 7) is repeated, until the whole of all hammerheads has been pierced；
9) third handwheel 4 is adjusted, makes hammerhead mounting device close to operator, successively unclamps the lateral clamping screw 9 of hammerhead
With adjusting screw 8-1, under the pressing plate action of reset spring being set between movable pressing board 8-3 and hammerhead mounting portion, movable pressing board
8-3 is opened, and is removed all hammerheads, is so far completed the pricker of the hammerhead in an area Ge Yin；
10) it is prepared to enter into the pricker in next sound area.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (10)
1. a kind of row's needle assemblies, which is characterized in that including row's needle fastening body and the multiple thorns being mounted on row's needle fastening body
The lower part of row's needle fastening body is arranged in by movable compact heap for needle, multiple prickers, and the activity compact heap passes through row
Needle housing screw compresses the pricker.
2. row's needle assemblies according to claim 1, which is characterized in that row's needle housing screw and the movable compact heap
Between be additionally provided with compression frame.
3. row's needle assemblies according to claim 1 or 2, which is characterized in that the top of row's needle fastening body is equipped with cylinder
Shape installing handle, middle part are in rectangular block architecture, and the side of the rectangular block architecture lower part is equipped with to be adapted with the movable compact heap
Concave station, the concave station is equipped with the vertical pricker placing groove of a row, and the pricker is placed in the pricker placing groove.
4. row's needle assemblies according to claim 3, which is characterized in that the lower part of row's needle fastening body is additionally provided in described
The one-to-one pricker of pricker placing groove deviates limiting slot, and the pricker offset limiting slot is located under the pricker placing groove
Portion, and the width of pricker offset limiting slot is greater than the width of the pricker placing groove.
5. a kind of pre- whole sound pricker machine of piano hammerhead, which is characterized in that including row's needle assemblies described in claim 3 or 4, also wrap
Pedestal, hammerhead mounting device and column on pedestal are included, row's needle assemblies are moving up and down to be mounted on the column
On, row's needle assemblies are located at the top of the hammerhead mounting device, and the hammerhead mounting device includes mounting base, hammerhead installation
Ontology and the rotating mechanism for driving the hammerhead installation ontology rotation, the mounting base includes bottom plate and two sides set on the bottom plate
Plate, the hammerhead installation ontology are mounted between described two side plates by shaft, and the hammerhead installation ontology includes hammerhead
Mounting portion, the side of the hammerhead mounting portion are equipped with the groove for installing hammerhead, and the hammerhead installation ontology further includes activity
Pressing plate, the movable pressing board is connect with the hammerhead mounting portion by adjusting screw, and the movable pressing board and the groove phase
Adaptation.
6. the pre- whole sound pricker machine of piano hammerhead according to claim 5, which is characterized in that the movable pressing board and the string
It is additionally provided with opening stop screw between mallet mounting portion, is socketed with pressing plate reset spring on the opening stop screw.
7. the pre- whole sound pricker machine of piano hammerhead according to claim 5, which is characterized in that the rotating mechanism includes being set to
First support on the bottom plate, the first handwheel in first support, the worm screw being connect with first handwheel and with institute
The compatible worm gear of worm screw is stated, the worm gear is connect with the shaft.
8. the pre- whole sound pricker machine of piano hammerhead according to claim 5, which is characterized in that further include installing the hammerhead
The left/right movement device that device moves left and right, the left/right movement device include the second handwheel, connect with the second handwheel described the
Two hand wheel shafts, the first gear being arranged on second hand wheel shaft and the first rack gear being meshed with the first gear, institute
The first rack gear is stated to be mounted on the bottom plate of the mounting base.
9. the pre- whole sound pricker machine of piano hammerhead according to claim 5, which is characterized in that further include installing the hammerhead
The back-and-forth motion mechanism that device is moved forward and backward, the back-and-forth motion mechanism include third handwheel, connect with the third handwheel
Screw rod and thread bush compatible with the screw rod, the screw rod are arranged on the third bracket of slide unit lower end, the spiral shell
Line is sheathed on slide unit lower end surface, and the slide unit lower end is equipped with second sliding slot, and the upper surface of the pedestal is equipped with and described the
Compatible second sliding rail of two sliding slots；The upper surface of the slide unit is equipped with the first sliding rail, and the lower end surface of the bottom plate is equipped with and institute
State the compatible first sliding groove of the first sliding rail.
10. according to the pre- whole sound pricker machine of the described in any item piano hammerheads of claim 5-9, which is characterized in that further include row's needle
Assembly lift mechanism, row's needle lifting mechanism includes the mounting rack being socketed on the column, be arranged on mounting rack
Two gears and the second rack gear engaged with the second gear, set on the rack gear lower end row's needle assemblies clamping chuck and with institute
The hand pivoted frame of the gear axis connection of second gear is stated, row's needle assemblies clamping chuck is adapted with the cylindrical installing handle；
Row's needle assemblies elevating mechanism further includes row's needle reset spring, and one end of row's needle reset spring is fixed on the mounting rack
On, the other end connects second rack gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821636380.8U CN208899112U (en) | 2018-10-10 | 2018-10-10 | A kind of row's needle assemblies and the pre- whole sound pricker machine of piano hammerhead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821636380.8U CN208899112U (en) | 2018-10-10 | 2018-10-10 | A kind of row's needle assemblies and the pre- whole sound pricker machine of piano hammerhead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208899112U true CN208899112U (en) | 2019-05-24 |
Family
ID=66575111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821636380.8U Expired - Fee Related CN208899112U (en) | 2018-10-10 | 2018-10-10 | A kind of row's needle assemblies and the pre- whole sound pricker machine of piano hammerhead |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208899112U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109137269A (en) * | 2018-10-10 | 2019-01-04 | 烟台博斯纳钢琴制造有限公司 | A kind of row's needle assemblies and the pre- whole sound pricker machine of piano hammerhead |
| CN114454058A (en) * | 2022-01-21 | 2022-05-10 | 陈美姿 | Piano hammer manufacturing device |
| CN114635231A (en) * | 2022-03-30 | 2022-06-17 | 武汉环宇飞龙新材料科技有限公司 | Full-automatic needling device and use method thereof |
-
2018
- 2018-10-10 CN CN201821636380.8U patent/CN208899112U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109137269A (en) * | 2018-10-10 | 2019-01-04 | 烟台博斯纳钢琴制造有限公司 | A kind of row's needle assemblies and the pre- whole sound pricker machine of piano hammerhead |
| CN109137269B (en) * | 2018-10-10 | 2024-02-02 | 烟台博斯纳钢琴制造有限公司 | Pin header assembly and piano hammer pre-trimming needle machine |
| CN114454058A (en) * | 2022-01-21 | 2022-05-10 | 陈美姿 | Piano hammer manufacturing device |
| CN114635231A (en) * | 2022-03-30 | 2022-06-17 | 武汉环宇飞龙新材料科技有限公司 | Full-automatic needling device and use method thereof |
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