JPH0863171A - Soundproof device for wire twisting machine - Google Patents

Abstract

PURPOSE: To provide a soundproof device for a wire twisting machine having an excellent soundproof effect. CONSTITUTION: Shell bodies 4A, 4B of an approximately semi-cylindrical cover 4 capable of covering approximately the upper half part of the wire twisting machine which is installed transversely, long and has an approximately long cylindrical shape are formed of aluminum. Lead thin sheets 5 are affixed to the inside wall surfaces of such shells bodies 4A, 4B and soundproof materials 6 made of glass wool are placed in a laminar form on the inner side thereof. Further, soundproof materials 8 made of glass wools are placed in a laminar form via sound shielding sheets 7 on the inner side thereof and punching metals 9 are extended on the inner side thereof.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a soundproof device for a tubular type twisting machine for producing twisted wires used as reinforcing steel cords for tires, high pressure hoses and the like.

[0002]

2. Description of the Related Art In the above-mentioned tubular type twisting machine, an amount of product proportional to the number of rotations can be obtained. However, when this tubular type twisting machine is rotated at a high speed, a very large noise is generated. In the past, for safety and sound insulation, the cylindrical rotating part of the wire twisting machine was covered with an iron hollow cylindrical cover.

[0003]

However, the soundproofing effect is not sufficient with only the conventional hollow cylindrical cover made of iron, and the noise is 1 in a factory in which many stranding machines are arranged in parallel.
There was a problem that the work environment reached 15db and the working environment was significantly deteriorated.

[0004]

As a first invention for solving the above problems, a cover of a substantially semi-cylindrical shape capable of covering the upper half of a substantially long cylindrical shape twisting machine installed in a horizontally long shape is provided. The outer shell is made of aluminum, a thin lead plate is attached to the inner wall of the outer shell, and a glass wool soundproofing material is applied in layers inside the outer shell. A sound insulation material for a twisting machine is constructed by applying sound insulation material made of a layered material and piercing a punching metal inside the sound insulation material.

Further, as a second invention, a honeycomb structure is inserted between the soundproof material made of glass fiber and the punching metal of the apparatus of the first invention to construct a soundproofing device for a twisting machine.

As a third invention, the outer shell of the apparatus of the first invention is divided into a ceiling portion and a side wall portion, each of which is formed into a predetermined length as an aluminum mold member, and is formed in accordance with the length of the twisting machine. A sound insulation device for a twisting machine is constructed by connecting a required number of the mold members.

As a fourth invention, an arm is provided so as to project from one side of the cover of the above-mentioned first invention, and an end portion of this arm is pivotally supported on the machine base, and the cover is centered around this pivotal fulcrum. The sound insulation device for the twisting machine is configured so that the cover can be opened and closed by rotating the cover.

[0008]

As described above, in the first aspect of the present invention, the outer shell of the cover is made of aluminum having good workability, and the inner wall surface of the lead has a large difference in specific gravity from aluminum and has a sound insulating and damping effect. A thin sheet made of glass is attached, and inside it is a soundproof material made of glass wool that has good sound absorption performance and different sound absorption performance,
The soundproofing material made of glass fiber was applied in layers with a soundproofing sheet sandwiched between them, and punching metal with a high opening ratio was stretched inside the soundproofing sheet. It is possible to exert a soundproofing effect that is far superior to that of

Further, in the second invention, since the honeycomb structure is inserted between the glass fiber soundproofing material of the first invention and the punching metal, the sound flow is subdivided by the honeycomb structure, The energy can be divided and absorbed, and the energy of the sound waves can be attenuated by vibrating the cells of the honeycomb to further enhance the soundproof effect.

In a third aspect of the invention, the outer shell of the first aspect of the invention is divided into a ceiling portion and a side wall portion, each of which is formed as an aluminum mold member to a predetermined length, and the above-mentioned outer casing is formed in accordance with the length of the twisting machine. Since the required number of mold members are connected, the outer shell is easy to manufacture, and it is easy to retrofit the existing twisting machine, and it is possible to easily cope with changes in the length of the twisting machine. Therefore, an inexpensive soundproofing device can be promptly provided.

In a fourth aspect of the invention, an arm is provided so as to project from one side of the cover of the first aspect of the invention, the end of the arm is pivotally supported on the machine base, and the cover is rotated around this pivot point. Since the cover can be opened and closed by moving the cover, even if this soundproof device is provided, no support is given to the work of the twisting machine.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. In the figure, 1 is the frame of a tubular type twisting machine, 1
A (see FIGS. 2 and 3) is the motor side, 1B is the winding side, 2 (see FIG. 6) is the cylindrical rotor of the twisting machine, and 3 is the conventional iron cover.

In the present embodiment, the outer shells 4A and 4B of the cover 4 having a substantially semi-cylindrical shape, which can cover the upper half of the rotating body 2 of the horizontally elongated substantially cylindrical wire twisting machine, are made of aluminum. It is formed as a material, and a thin lead plate (for example, a plate having a thickness of 1 mm) 5 (see FIGS. 6 and 7) is attached to the inner wall surfaces of the outer shells 4A and 4B, and a low density sound insulation made of glass wool is provided inside the thin plate. The material 6 is applied in layers, and a high-density soundproof material 8 made of glass fiber is applied in layers through a sound-insulating sheet (for example, a rubber plate having a thickness of 1 mm) 7 inside the punched metal (for example, a thickness of A 1 mm perforated aluminum plate) 9 is stretched.

In a second aspect of the invention, the honeycomb structure 10 made of aluminum is inserted between the soundproof material 8 made of glass fiber and the punching metal 9. In this example,
Although the honeycomb structure 10 is provided only on the ceiling portion, it may be provided on the side wall portion.

As a third invention, the cover 4 described above is used.
As shown in FIGS. 8 and 9, each of the outer shells is divided into a left and right ceiling portion 4A and a side wall portion 4B and formed into a predetermined length (for example, 2340 mm) as an aluminum mold member,
The necessary number of the above-mentioned mold materials are connected according to the length of the twisting machine. That is, the aluminum mold members 4A and 4B are formed into a unit length by extrusion molding with the cross-sectional shapes shown in FIGS. 8A and 9A, respectively.

As a fourth invention, the cover 4 described above is used.
Two sets of arms 11 are projectingly provided on one side, and an end of the arm 11 is pivotally supported by a shaft 15 on a bearing 14 provided on a bracket 13 projecting on a cover receiver 12 of a machine base integrated with the frame 1. Then, cover 4 around this pivot point as shown by arrow A in FIG.
The cover 4 can be opened and closed by rotating as described above.

Further, FIG. 10 shows the cover receivers 12 projecting from both side edges of the frame 1 of the twisting machine,
This cover receiver 12 also has the cross-sectional shape shown in FIG.
It may be extruded using aluminum as a material. 12a is an upper flange, 12b is an angled lower flange, 1
2c and 12d are two webs, and 12e is a void.
It should be noted that this cover receiver 12 is also preferably provided with a soundproof material 8 and punching metal 9, as shown in FIG.

FIG. 4 is an end view of the cover 4 on the motor side. 16 is a motor side scallop, 17 is a motor side end plate of the cover 4, 18 is a motor side scallop 16 and a motor side end plate 17. It is a sponge provided in the space between them.

FIG. 5 is an end view of the cover 4 on the winding side. 19 is the winding side scallop, 20 is the winding side end plate of the cover 4, 18 is the winding side scallop 19 and the winding side. It is a sponge provided in the space between the end plate 20.

[0020]

As described above, according to the first aspect of the present invention, the outer shells 4A and 4B of the cover 4 are made of aluminum having good workability, and the inner wall surface of the outer shells 4A and 4B has a great difference in specific gravity from that of aluminum so that sound insulation and A thin lead plate 5 having a vibration damping effect is attached, and a sound insulating material 6 made of glass wool and a sound insulating material 8 made of glass fiber having good sound absorbing performance and different sound absorbing performance are laminated inside the sound insulating sheet 7 in layers. Since it is applied and a punching metal 9 with a high aperture ratio is stretched inside, the synergistic effect of the sound absorption, damping, and sound insulation by the above components makes
It is possible to obtain the effect that the soundproofing effect which is far superior to the conventional one can be exhibited. By the way, the noise of 115 dB without the soundproof cover of the present invention was reduced to about 75 dB when the soundproof cover of the present invention was mounted.

Further, in the second invention, since the honeycomb structure 10 is inserted between the glass fiber soundproof material 8 and the punching metal 9 of the first invention, the honeycomb structure 10 causes the sound flow. It is possible to obtain the effect that the energy is divided into smaller pieces and the energy is divided and absorbed, and the sound wave energy is further attenuated by vibrating the cells of the honeycomb, thereby further enhancing the soundproof effect.

In the third invention, the outer shell of the first invention described above is divided into a ceiling portion 4A and a side wall portion 4B, each of which is formed as an aluminum mold member to a predetermined length, and is formed according to the length of the twisting machine. So that the required number of molds are combined,
Since the outer shell is easy to manufacture, retrofitting to an existing stranding machine is also easy, and it is possible to easily cope with a change in the length of the stranding machine. The device can be provided quickly.

In the fourth invention, an arm 11 is provided so as to project from one side of the cover 4 of the first invention, and an end portion of the arm 11 is pivotally supported on the machine base. Since the cover 4 can be opened and closed by rotating the cover 4, it is possible to obtain the effect that even if this soundproof device is provided, no support is given to the work of the twisting machine.

[Brief description of drawings]

FIG. 1 is a front view of a twisting machine equipped with a soundproofing device of the present invention.

FIG. 2 is a left side view of FIG.

FIG. 3 is a plan view of FIG. 2;

FIG. 4 is a motor side end view of the device of the present invention.

FIG. 5 is a winding-side end view of the device of the present invention.

FIG. 6 is a sectional view of an intermediate portion of the device of the present invention.

7 is a detailed cross-sectional view of the left half of FIG.

FIG. 8 (a) is an end view of the outer shell of the ceiling part,
(B) is the side view.

FIG. 9A is an end view of the outer shell of the side wall portion,
(B) is the side view.

FIG. 10A is an end view of the cover receiver, and FIG.
Is a side view thereof, and (c) is a bottom view of (b).

[Explanation of symbols]

 1 Tubular type stranding machine frame 1A Motor side 1B Winding side 2 Rotating body 3 Conventional cover 4 Cover 4A Outer shell (ceiling) 4B Outer shell (side wall) 5 Lead thin plate 6 Glass wool soundproof Material 7 Sound insulation sheet 8 Soundproof material made of glass fiber 9 Punching metal 10 Honeycomb structure 11 Arm 12 Cover receiving 13 Bracket 14 Bearing 15 Shaft 16 Motor side scallop 17 Motor side end plate 18 Sponge 19 Winding side scallop 20 Winding Side plate

Claims (4)

[Claims] 1. An outer shell of a substantially semi-cylindrical cover capable of covering the upper half of a substantially long cylindrical stranding machine installed horizontally is formed of aluminum as a material, and an inner wall surface of the outer shell is formed. While attaching a lead thin plate, a layer of glass wool soundproofing material is applied to the inside, and a glass fiber soundproofing material is applied to the inside of the soundproofing sheet in layers,
A soundproofing device for a twisting machine, in which punching metal is stretched inside. 2. A sound insulation device for a twisting machine, wherein a honeycomb structure is inserted between the sound insulation material made of glass fiber and the punching metal of the device according to claim 1. 3. The outer shell of the apparatus according to claim 1 is divided into a ceiling portion and a side wall portion, each of which is formed into a predetermined length as an aluminum mold member, and the required number of mold members is provided according to the length of the twisting machine. A sound insulation device for a twisting machine, which is characterized in that it is coupled. 4. An arm is provided so as to project from one side of the cover of the apparatus according to claim 1, the end of the arm is pivotally supported on a machine base, and the cover is rotated about this pivot point. A sound insulation device for a twisting machine, characterized in that the cover can be opened and closed.