CN211878985U - Manufacturing equipment for piano bridle strap - Google Patents

Manufacturing equipment for piano bridle strap Download PDF

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Publication number
CN211878985U
CN211878985U CN201922493790.2U CN201922493790U CN211878985U CN 211878985 U CN211878985 U CN 211878985U CN 201922493790 U CN201922493790 U CN 201922493790U CN 211878985 U CN211878985 U CN 211878985U
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CN
China
Prior art keywords
rope
piano
positioning groove
winding wheel
bridle
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CN201922493790.2U
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Chinese (zh)
Inventor
何玉坚
冯锦豪
江沛姬
林鸣亚
卢洁
梁俊昉
邓崇军
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Guangzhou Pearl River Kayserburg Piano Co Ltd
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Guangzhou Pearl River Kayserburg Piano Co Ltd
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Abstract

The utility model discloses a preparation equipment of piano bridle strap, include: the tape head adhering and climbing machine comprises a driving device, a winding wheel connected with the driving device, a rope guiding mechanism connected with the driving device and a plurality of tape head adhering molds circumferentially arranged on the winding wheel, wherein each tape head adhering mold is provided with a positioning groove and a plurality of rope grooves communicated with the positioning groove and arranged along the length direction of the positioning groove, the positioning groove is configured to position a leather strap for manufacturing a tape head, the rope grooves are configured to position a rope for manufacturing a tape rope, and the driving device is used for driving the winding wheel to rotate and enabling the rope to be wound on the leather strap along the rope grooves under the action of the rope guiding mechanism and the winding wheel to form a blank with a plurality of blank units; the climbing belt head punching machine comprises a punching die, wherein the punching die is provided with a punching structure matched with the shape of the climbing belt head so as to punch each blank unit into strips to form a plurality of climbing belts. The utility model discloses the climbing belt quality of not only making is high, and stable in quality, human cost are low moreover, can batch production.

Description

Manufacturing equipment for piano bridle strap
Technical Field
The utility model relates to a musical instrument makes the field, especially indicates a preparation equipment of piano bridle strap.
Background
The bridle strap is a component of the piano and generally comprises a bridle strap head and a bridle strap rope connected with the bridle strap head, wherein the bridle strap head is provided with a bridle strap hole which is a through hole and can be hung on the bridle strap hook. The hammer can be driven to return through the climbing belt, and the quick continuous striking speed of the hammer is ensured. The bridle line is typically attached to the bridle head by means of an adhesive.
The existing binding mode of the bridle strap is made by pure hands, a bridle strap head is supplied by a material supplier, a bridle strap rope is cut into standard length, and white glue is firstly coated on the bridle strap head by a worker during binding. Because the whole bridle tape head is glued during gluing, glue can block the bridle tape hole and influence subsequent assembly. In order to prevent the situation, after the glue is naturally dried, the long stainless steel needle is used for puncturing along the bridle hole of the bridle head again so as to ensure the smoothness of the bridle hole.
The manufacturing process has the advantages that due to the fact that the manufacturing process is purely manual, manufacturing quality of workers is different, and the problems of uneven gluing, infirm bonding, different bonding positions of the climbing ropes, different sizes of the puncture holes, asymmetrical climbing ropes, rope end scattering and the like exist. The quality inspection workload of the workpiece is large, the material loss is large, and the assembly quality of the piano is influenced by the manufacturing mode and the quality problem of the workpiece. The manual operation can only be carried out in a single distribution mode, and due to the fact that the number of workpieces is large, a large number of fields and hands are occupied, batch production cannot be achieved, and the operation cost of enterprises is increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art not enough to a preparation equipment of piano bridle area is provided, the bridle area quality of not only making is high, and stable in quality, human cost are low moreover, can batch production.
To the above purpose, the utility model adopts the following technical scheme:
an apparatus for making a piano bridle strap, comprising:
the tape head adhering and climbing machine comprises a driving device, a winding wheel connected with the driving device, a rope guiding mechanism connected with the driving device and a plurality of tape head adhering molds circumferentially arranged on the winding wheel, wherein each tape head adhering mold is provided with a positioning groove and a plurality of rope grooves which are communicated with the positioning groove and arranged along the length direction of the positioning groove, the positioning groove is configured to position a leather strap for manufacturing a tape head, the rope grooves are configured to position a rope for manufacturing a tape rope, the driving device is used for driving the winding wheel to rotate and enabling the rope to be wound on the leather strap along the rope grooves under the action of the rope guiding mechanism and the winding wheel to form a blank with a plurality of blank units;
the climbing belt head punching machine comprises a punching die, wherein the punching die is provided with a punching structure matched with the shape of the climbing belt head so as to punch and divide each blank unit into strips to form a plurality of climbing belts.
Preferably, the driving device includes a power source and an output shaft driven by the power source, and the output shaft is connected to the winding wheel to drive the winding wheel to rotate.
As a preferred technical solution, the rope guiding mechanism includes a lead screw driven by the output shaft and a rope guiding structure driven by the lead screw to move axially, the lead screw includes a screw rod and a nut in threaded connection with the screw rod, and the rope guiding structure is disposed on the nut.
As a preferable technical scheme, the rope guiding structure is provided with a limiting opening for the rope to pass through and be limited, so that the rope guiding structure drives the rope to move synchronously when moving.
According to a preferable technical scheme, a first synchronizing wheel is coaxially fixed on the output shaft, a second synchronizing wheel is coaxially fixed on the screw rod, and the first synchronizing wheel and the second synchronizing wheel are connected through a synchronizing belt.
As the preferred technical scheme, two sides of the length direction of the positioning groove are respectively provided with a limiting convex part for limiting two ends of the leather strip.
Preferably, the rope grooves form a spiral path so that the rope is spirally wound.
Preferably, the rope groove penetrates through the adhesive climbing belt head die along the rope path direction.
As a preferred technical scheme, a plurality of positioning blocks are respectively arranged on two sides of the width direction of the positioning groove, and the rope grooves are formed between the positioning blocks.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the belt climbing device is processed through the manufacturing equipment, the number of required workers is greatly reduced, the labor intensity of the workers is reduced, the labor cost is saved, and the production efficiency of belt climbing is improved.
(2) The original bridle strap is sent to the individual to be finished, and the quality is uneven. The climbing belt is processed by the manufacturing equipment, so that the climbing belt is stable in quality and high in quality.
(3) The original climbing belt is sent to an individual for completion, and the supply time is difficult to guarantee. The processing is carried out through the manufacturing equipment, and the supply time can be ensured through a specially-assigned worker.
Drawings
Fig. 1 is a perspective view of a head adhering and climbing machine according to an embodiment of the present invention;
fig. 2 is a perspective view of another angle of the head adhering and climbing machine according to an embodiment of the present invention;
fig. 3 is a front view of a head adhering and climbing machine according to an embodiment of the present invention;
fig. 4 is a side view of a taping head adhering machine according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a tape head adhering mold according to an embodiment of the present invention;
FIG. 6 is a schematic view of the positioning of the leather strip and rope on the adhesive bridle head die according to an embodiment of the present invention;
fig. 7 is a schematic structural view of an upper pressing die of a stamping die of a climbing belt head punching machine according to an embodiment of the present invention;
fig. 8 is a schematic structural view of a lower die of a stamping die of a climbing belt head punching machine according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a blank unit according to an embodiment of the present invention;
FIG. 10 is a schematic view showing the arrangement of the outer contours of the bridle head to be punched out by the leather strap in the blank unit according to an embodiment of the present invention;
fig. 11 is a schematic view of a plurality of bridle straps formed by stamping and slitting blank units according to an embodiment of the present invention.
Reference numerals:
100 sticking and climbing belt head machine
1 machine frame
2 drive device
21 hand wheel
22 output shaft
23 spindle
24 commutator
25 first synchronous wheel
26 second synchronizing wheel
27 synchronous belt
3 winding wheel
31 installation station
4 rope guiding mechanism
41 screw rod
42 nut
43 guide rope structure
431 limiting port
5 glue and climb tape head mould
51 locating slot
52 rope groove
53 limiting convex part
54 positioning block
6 climbing belt
61 climbing belt head
62 climbing rope
7 leather strip
8 blank unit
9 Upper pressing die
10 lower pressing die
11 rope
Detailed Description
For the purpose of promoting a better understanding of the objects, structures, features, and functions of the invention, reference should now be made to the drawings and detailed description of the invention. It should be noted that the features illustrated in the drawings are not necessarily drawn to scale. Moreover, the described embodiments are only some of the described embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.
Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", "front", "rear", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 1, an apparatus for manufacturing a piano bridle according to an embodiment of the present invention includes a bridle head adhering machine 100 and a bridle head punching machine (not shown).
As shown in fig. 1 to 4, the taping head adhering machine 100 includes a frame 1, a driving device 2 provided to the frame 1, a winding wheel 3 connected to the driving device 2, a rope guiding mechanism 4 connected to the driving device 2, and a plurality of taping head molds 5 circumferentially provided to the winding wheel 3. In this embodiment, there are 18 taping head dies 5, and in other embodiments, the number of taping head dies 5 can be reduced or increased according to the processing speed of different operators. For example, a reduction of 6 or 12 or an increase of 24 may be chosen. The tape head sticking mould 5 is fixed on the winding wheel 3 and can move along with the winding wheel 3. The winding wheel 3 is provided with mounting stations 31 for mounting the climbing belt head moulds 5, and the mounting stations 31 are matched with the number of the climbing belt head moulds 5.
As shown in fig. 5 and 6, the taping head adhering mold 5 is provided with a positioning groove 51 and a plurality of rope grooves 52 communicating with the positioning groove 51 and arranged in the length direction thereof, the positioning groove 51 being configured to position the leather lace 7 for making the taping head 61, and the rope grooves 52 being configured to position the rope 11 for making the taping rope 62. The leather strip 7 has a predetermined size to fit the size of the positioning groove 51 so as to be positioned. Through the design of the adhesive climbing belt head die 5, the leather strip 7 can be firmly placed in the positioning groove 51 of the die, the rope 11 can also be limited at a preset position through the rope groove 52, the positioning is accurate, and the centering and bonding precision is high. The leather strip 7 can be fixed in the positioning groove 51 by any suitable method, for example, by fixing the leather strip 7 with reusable glue, such as pressure-sensitive glue, which is readily available on the market. When the leather strip 7 is removed, the other leather strips 7 can be bonded and fixed again.
In the conventional manufacturing method, the appearance of the bridle head 61 is previously manufactured. However, in this embodiment, in order to solve the problem of slow and uneven glue application, the whole leather strip 7 capable of forming the plurality of taping heads 61 is glued and then bonded with the rope 11, the glue used may be white latex, and by such a method, the glue on the bonding surface can be ensured to be even. Namely, the lower surface of the leather strip 7 is fixed in the positioning groove 51 through glue, and the upper surface of the leather strip 7 is coated with glue for bonding the rope 11.
The size and shape of the leather strip 7 can be selected according to actual conditions, and in the embodiment, the leather strip 7 is rectangular, the length is 150mm, and the width is 21.5 mm. On the premise of ensuring the external dimension of the bridle head 61, a leather strap 7 with the above dimension can be cut into 15 bridle heads 61. Preferably, the leather strip 7 is made of sheep leather. The rope groove 52 is communicated with the positioning groove 51 to ensure that the rope 11 positioned by the rope groove 52 can contact the leather strip 7.
In this embodiment, two sides of the positioning groove 51 in the length direction are respectively provided with a limiting convex part 53 for limiting two ends of the leather strip 7. A plurality of positioning blocks 54 are respectively provided on both sides of the positioning groove 51 in the width direction, and a rope groove 52 is formed between the positioning blocks 54. Namely, the limiting projection 53 and the positioning block 54 basically limit the size of the positioning slot 51, and the leather strip 7 can be prevented from moving in the positioning slot 51 by the limiting projection 53 and the positioning block 54, so that the leather strip can be accurately positioned.
As shown in fig. 1 to 4, the driving device 2 is used for driving the winding wheel 3 to rotate and winding the rope 11 on the leather strip 7 along the rope groove 52 under the action of the rope guiding mechanism 4 and the winding wheel 3 to form a blank with a plurality of blank units 8. Since the leather strip 7 is coated with glue, the rope 11 is simultaneously adhered to the leather strip 7 when being wound on the leather strip 7. The number of blank units 8 corresponds to the number of taped die 5, i.e. in this embodiment the blank has 18 blank units 8.
Since the rope groove 52 is formed along the length direction of the positioning groove 51, the rope 11 is also distributed along the length direction of the leather strip 7 after the winding is completed. Each blank unit 8 of the blank may be cut out (i.e. the string 11 is cut) by a suitable cutting tool (e.g. scissors, a die cutter or a suitable die) and each blank unit 8 may then be punch formed by a die-head machine.
The bridle strap rope 62 in the prior art is cut in advance, and the tail of the rope needs to be collected after the bridle strap rope is manually stuck, so that the operation is quite inconvenient. In the embodiment, the rope 11 is not cut in the whole winding process, the rope 11 needs to be cut once after all winding is completed, and then the rope 11 is cut by the cutting tool to enable the rope 11 to have the preset length, so that the problem that the rope tail needs to be collected when the rope 62 is manually adhered is solved, and the length of the rope 62 is uniform.
As shown in fig. 7 to 11, the bridle wire head punching machine includes a punching die provided with a punching structure adapted to the shape of the bridle wire head 61 to punch and strip each blank unit 8 into a plurality of bridle wires 6, i.e., each blank unit 8 may mold a plurality of bridle wires 6. Wherein the holes of the bridle strap 6 in the bridle strap 6 are also punched and formed together. The punching die includes an upper die 9 and a lower die 10.
As shown in fig. 1 to 4, the driving device 2 includes a power source and an output shaft 22 driven by the power source, and the output shaft 22 is connected to the winding wheel 3 to drive the winding wheel 3 to rotate. The power source can be manual or electric, for example, in the embodiment, the power source is a hand wheel 21, and the rotation of the winding wheel 3 is realized by manually shaking the hand wheel 21. In other embodiments, a motor may be used instead of manual rotation to reduce labor intensity. The output shaft 22 may be directly connected to the drive device 2 or indirectly connected to the drive device 2. In this embodiment, in order to effectively utilize the space and facilitate the operation of workers, the hand wheel 21 is directly connected with the main shaft 23, and the main shaft 23 is connected with the output shaft 22 through the commutator 24, that is, an angle of 90 ° is formed between the main shaft 23 and the output shaft 22. Depending on the application, the commutator 24 may be a decelerating commutator 24, which decelerates simultaneously with commutation.
The rope guiding mechanism 4 comprises a lead screw driven by the output shaft 22 and a rope guiding structure 43 driven by the lead screw to move axially, the lead screw comprises a screw rod 41 and a nut 42 in threaded connection with the screw rod 41, and the rope guiding structure 43 is arranged on the nut 42. The axial displacement here refers to the axial direction along the reel 3.
The cord guide 43 serves to guide the direction in which the cord 11 exits. The rope guiding structure 43 is provided with a limiting opening 431 for the rope 11 to pass through and be limited so that the rope guiding structure 43 drives the rope 11 to move synchronously when moving.
In this embodiment, the first synchronizing wheel 25 is coaxially fixed to the output shaft 22, the second synchronizing wheel 26 is coaxially fixed to the screw 41, and the first synchronizing wheel 25 and the second synchronizing wheel 26 are connected by the timing belt 27. In other embodiments, the transmission can be performed by a gear and a rack.
In the winding process of the rope 11, a worker rotates the main shaft 23 by shaking the hand wheel 21, and under the action of the commutator 24, power is transmitted to the output shaft 22 to drive the output shaft 22 to rotate, so that the winding wheel 3 is driven to rotate. The output shaft 22 drives the reel 3 to rotate, at the same time, the first synchronizing wheel 25 coaxially rotates, and drives the second synchronizing wheel 26 to rotate through the synchronous belt 27, so as to drive the screw rod 41 to rotate, further cause the nut 42 to axially move, and finally drive the rope guiding structure 43 to axially move. The winding wheel 3 draws the rope 11 to make a circular rotation, and the rope guiding structure 43 makes the rope 11 move axially, i.e. the rope 11 makes an axial movement while making a circular rotation, forming a spiral movement. Correspondingly, the grooves 52 form a spiral path so that the rope 11 is spirally wound. Meanwhile, the rope groove 52 penetrates the sticky flap die 5 in the path direction of the rope 11 for smooth winding.
The manufacturing method of the piano climbing strap 6 comprises the following steps:
providing the manufacturing equipment;
repeatedly-usable glue is coated in the positioning groove 51, the leather strip 7 is fixed in the positioning groove 51, adhesive glue, such as white latex, is coated on the upper surface of the leather strip 7, and the leather strip 7 can be coated with the glue before or after being fixed;
the winding wheel 3 is driven to rotate by the driving device 2, and the rope 11 is wound on the leather strips 7 along the rope grooves 52 under the action of the rope guide mechanism 4 and the winding wheel 3 to form a blank with a plurality of blank units 8;
cutting the blank into a plurality of blank units 8;
each blank unit 8 is stamped and slit into a plurality of bridle straps 6 by a bridle head machine 100.
The above detailed description is only for the purpose of illustrating the preferred embodiments of the present invention, and not for the purpose of limiting the scope of the present invention, therefore, all the equivalent technical changes using the description and drawings of the present invention are included in the scope of the present invention.

Claims (9)

1. An apparatus for making a piano bridle strap, comprising:
the tape head adhering and climbing machine comprises a driving device, a winding wheel connected with the driving device, a rope guiding mechanism connected with the driving device and a plurality of tape head adhering molds circumferentially arranged on the winding wheel, wherein each tape head adhering mold is provided with a positioning groove and a plurality of rope grooves which are communicated with the positioning groove and arranged along the length direction of the positioning groove, the positioning groove is configured to position a leather strap for manufacturing a tape head, the rope grooves are configured to position a rope for manufacturing a tape rope, the driving device is used for driving the winding wheel to rotate and enabling the rope to be wound on the leather strap along the rope grooves under the action of the rope guiding mechanism and the winding wheel to form a blank with a plurality of blank units;
the climbing belt head punching machine comprises a punching die, wherein the punching die is provided with a punching structure matched with the shape of the climbing belt head so as to punch and divide each blank unit into strips to form a plurality of climbing belts.
2. The apparatus for fabricating a piano bridle strap according to claim 1, wherein: the driving device comprises a power source and an output shaft driven by the power source, and the output shaft is connected with the winding wheel to drive the winding wheel to rotate.
3. The apparatus for fabricating a piano bridle strap according to claim 2, wherein: the rope guiding mechanism comprises a lead screw driven by the output shaft and a rope guiding structure driven by the lead screw to move axially, the lead screw comprises a screw rod and a nut in threaded connection with the screw rod, and the rope guiding structure is arranged on the nut.
4. The apparatus for fabricating a piano bridle strap according to claim 3, wherein: the rope guiding structure is provided with a limiting opening for the rope to penetrate through and be limited, so that the rope guiding structure drives the rope to move synchronously when moving.
5. The apparatus for fabricating a piano bridle strap according to claim 3, wherein: the output shaft is coaxially fixed with a first synchronizing wheel, the screw rod is coaxially fixed with a second synchronizing wheel, and the first synchronizing wheel and the second synchronizing wheel are connected through a synchronizing belt.
6. The apparatus for fabricating a piano bridle strap according to claim 1, wherein: and the two sides of the positioning groove in the length direction are respectively provided with a limiting convex part for limiting the two ends of the leather strips.
7. The apparatus for fabricating a piano bridle strap according to claim 1, wherein: the grooves form a spiral path to allow the rope to be spirally wound.
8. The apparatus for fabricating a piano bridle strap of claim 7, wherein: the rope groove penetrates through the adhesive climbing belt head die along the rope path direction.
9. The apparatus for fabricating a piano bridle strap according to claim 1, wherein: a plurality of positioning blocks are respectively arranged on two sides of the width direction of the positioning groove, and the rope grooves are formed between the positioning blocks.
CN201922493790.2U 2019-12-31 2019-12-31 Manufacturing equipment for piano bridle strap Active CN211878985U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922493790.2U CN211878985U (en) 2019-12-31 2019-12-31 Manufacturing equipment for piano bridle strap

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922493790.2U CN211878985U (en) 2019-12-31 2019-12-31 Manufacturing equipment for piano bridle strap

Publications (1)

Publication Number Publication Date
CN211878985U true CN211878985U (en) 2020-11-06

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ID=73260976

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Application Number Title Priority Date Filing Date
CN201922493790.2U Active CN211878985U (en) 2019-12-31 2019-12-31 Manufacturing equipment for piano bridle strap

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111063322A (en) * 2019-12-31 2020-04-24 广州珠江恺撒堡钢琴有限公司 Equipment and method for manufacturing piano bridle strap
CN111063322B (en) * 2019-12-31 2024-07-12 广州珠江恺撒堡钢琴有限公司 Piano climbing belt manufacturing equipment and manufacturing method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111063322A (en) * 2019-12-31 2020-04-24 广州珠江恺撒堡钢琴有限公司 Equipment and method for manufacturing piano bridle strap
CN111063322B (en) * 2019-12-31 2024-07-12 广州珠江恺撒堡钢琴有限公司 Piano climbing belt manufacturing equipment and manufacturing method

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