JP3274417B2 - Copper alloy strip winding method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-coil copper
The present invention relates to a method for continuously winding a copper alloy strip for producing an alloy coil .

[0002]

When manufacturing the Related Art Copper alloys strip material, first, by repeating rolling and heat treatment on the copper alloy ingot having the desired characteristics and thickness are typically elongated member width is approximately 600mm It is wound around a coil strip. Next, this copper alloy coil is cut into a predetermined width by a slitter, and finally,
It is a small slit up coil having a strip width of 9 to 50 mm, usually 12 to 35 mm.

FIG. 5 shows a schematic configuration of a manufacturing apparatus for manufacturing a small slit coil. According to the manufacturing apparatus of this example, for example, the strip width is 100 to 350 mm, and the thickness is 0.3 m.
The copper alloy coil C0, which is _denoted by m, is mounted on the payout device (payoff reel) 10. The coil member J ₀ is fed out from the payoff reel 10, guided by guide rolls 12 and 13, and supplied to the cutting device 14. Cutting device 1
4 is a pair of upper and lower round tooth slitters 14A, 14B
Is a, strip material width 12 of the elongated member J ₀ of the width 100~350mm
It is cut into a copper alloy strip J having a thickness of about 35 mm. The cut strip material J is guided by guide rolls 15, 16, and 17 and wound up by a winding device (tension reel) 20, whereby a small slit up coil C is manufactured. Usually, the winding speed is 100 to 200 m / min.
The outer diameter of the small slit slit coil C is 500-12.
00 mm and an inner diameter of 200 to 400 mm.

At this time, in order to prevent the coil of the strip J wound on the tension reel 20 from collapsing, the strip has a predetermined tensile force, that is, a tightening force (unit tension).
At the tension reel 20. The adjustment of the unit tension is performed by applying a predetermined pressing force (P) to the strip by the tension generating device 30 disposed in front of the tension reel.

As the tension generating device 30, for example, a belt bridle (trade name) manufactured by Japan Development Consultant Co., Ltd. is suitably used, and as shown in FIGS. It has a unit 30A and a lower belt unit 30B. The upper belt unit 30A includes a plurality of belts 33 between the rollers 31 arranged in parallel.
An upper belt means 33 composed of a, 33b, 33c,... 33n is stretched and provided with an upper slider 34 therein. Similarly to the upper belt unit 30A, the lower belt unit 30B also has rollers 32 arranged in parallel,
A plurality of belts 35a, 35b, 35c,.
A lower belt means 35 composed of 35n is stretched, and has a lower slider 36 therein. Upper slider 3
4 penetrates the inside of the upper belt means 33, both ends of which
It extends further outward than both ends of the upper belt means 33, and in this example, is integrally connected to and supported by the upper support table 37. Similarly to the upper slider 34, the lower slider 36 also penetrates through the inside of the lower belt means 35, and both ends thereof are connected to the lower belt means 35.
Are extended further outward from both ends, and are integrally connected and supported by the lower support base 38.

According to this embodiment, the lower support 38 is fixed to the apparatus main body 100, and the upper support 37 is supported by the lower support 38 via the elastic members 41 and 42. Also, upper support 3
7 can be moved further downward against the elasticity of the elastic members 41 and 42 by pressing means 43 and 44 such as air cylinders, thereby pressing the upper belt means 33 downward and The unit tension can be applied to the strip J conveyed between the lower belt means 33 and 35.

[0007] In this specification, the unit tension is
As shown in FIG. 5, the tension per unit area obtained by dividing the tensile force by the winding device, ie, the tension reel 20 measured in the running direction of the strip J fed to the tension reel 20, by the cross-sectional area of the strip. Refers to force (T).

[0008] When the small slit coil C manufactured as described above is used, as shown in FIG.
For example, a so-called multi-coil MC is formed by stacking _{2 to} 30 stages (C ₁ , C ₂ ,... C ₆ ), and the strip ends of each coil are connected to each other continuously. The copper alloy strip J is taken out.

[0009] The present inventors, as described in Japanese Patent Application No. 8-358899, a copper alloy strip material J using such multi-coil MC, in particular, tin-plated copper alloy strip material, solder plating Alternatively, even when a surface treatment such as silver plating is applied, in order to take out continuously without being caught, the unit tension at the time of producing each copper alloy coil (slit slit up coil) C is 2.0 kg. / Mm ² or less, 0.5k
g / mm ² or more was found to be important.

[0010]

However, the present inventors have conducted further research and experiments on the production of the coil C using the tension generating device 30 having the above configuration, and as a result, the following has been found.

That is, the conventional tension generating device 30 is
By pressing the lower sliders 34, 36 against the belt means 33, 35, tension is generated in the strip J passing between the belt means. Accordingly, the pressing force of the sliders 34, 36 against the belt is P, and the sliders 34, 36 and the belt means 3
Assuming that the friction coefficients of 3, 35 are μ, the force of the air cylinders 43, 44 is F, the reaction force of the elastic members 41, 42 is R, the plate thickness of the strip J is t, and the width is w, T = P × μ / (T × w) (1) Since P = 2F−2R (2), the equation (1) becomes T = 2 (F−R) × μ / (t × w) (3)

The unit tension is determined by the above equation (3). However, since the friction coefficient μ changes with time due to the wear of the belt means 33 and 35, the unit tension decreases and the winding becomes loose. I understood.

[0013] As the elastic members 41, 42 which is interposed between the upper support base 37 and the lower support base 38, usually, high hardness onset
Although Lapolak (trade name) manufactured by Hokushin Kogyo Co., Ltd. made of foam urethane is used, the lengths of the resin elastic materials 41 and 42 vary (the processing tolerance of the length is used). In addition, since the length of the upper and lower belt means 33 and 35 in the width direction is uneven, the unit tension is uneven because the length changes with time due to the pressure. As a result, it was found that the unit tension was reduced and winding was loosened. For example, the elastic modulus k of the elastic members 41 and 42 is 10 kgf / mm, and the length is actually about 1 m.
If they are different from each other, an imbalance in tension of 10 kgf occurs. Further, when the strip J to be wound is a wide strip, the strip J meanders, and the edges of the wound coil C become uneven. Such irregularities in the coil edge portions cause a problem that the coil C cannot be suctioned by a suction device for transport in a subsequent processing step.

Therefore, the object of the present invention is to always apply 2.0 kg
/ Mm ² or less, 0.5kg / mm ² or more can be wound at a constant unit tension, copper alloy strip can be wound, there is no loosening, and even when winding a wide strip, uneven coil edges Multi-carp that does not occur
It is an object of the present invention to provide a method for winding a copper alloy strip for producing a copper alloy coil for metal .

Another object of the present invention, tin-plated, surface treatment such as solder plating or silver plating applied to the copper alloy strip material
Produce a copper alloy coil for multi-coil that can be wound continuously without being caught even if
To provide a method for winding a copper alloy strip for use.

[0016]

SUMMARY OF THE INVENTION The above objects are attained by the present invention.
Achieved by a copper alloy strip winding method. In summary, the present invention provides a method for producing a coil of a copper alloy strip using a winding device.
Knit tension is 2.0kg / mm ² or less, 0.5k
For continuous coiling at g / mm ² or more , for multiple coils
In the method for winding a copper alloy strip for producing a copper alloy coil, a tensile force applied when the copper alloy strip is wound by a winding device is applied to the copper alloy strip by a tension generator to generate the tension. The tension force of the copper alloy strip is detected by a tension detecting means provided between the apparatus and the winding device, and the tension is applied to the copper alloy strip by the tension generator based on the detected tensile force. Controlling the application of force , the tension generator
Is the upper belt unit that is located on both sides of the copper alloy strip.
And a lower belt unit, and a pressing means.
The belt unit has an upper bell between the rollers arranged in parallel.
The upper belt means is stretched inside the upper belt means.
Is the upper belt means on the side facing the copper alloy strip.
An upper slider for slidingly guiding the traveling section is provided.
The belt unit has a lower bell between the rollers arranged in parallel.
The lower belt means is stretched inside the lower belt means.
Is the lower belt means on the side facing the copper alloy strip.
It has a lower slider for slidingly guiding the traveling section,
The slider and / or the lower slider is moved by the pressing means.
Press the upper and lower belt hands relatively to each other.
The copper alloy strip passing between the steps is pressed by the upper and lower belt means.
This is a method for winding a copper alloy strip, comprising applying a tensile force by pressing .

According to one embodiment of the present invention, the upper belt unit includes an upper support for supporting the upper slider, and the lower belt unit includes a lower support for supporting the lower slider. The pressing means presses the upper support base toward the lower support base.

According to one embodiment of the present invention, the copper alloy
The strip material is a bare material, or has been subjected to a surface treatment such as tin plating, solder plating, or silver plating.
In particular, the copper alloy strip is phosphor bronze or brass.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a method for winding a copper alloy strip according to the present invention will be described in more detail with reference to the drawings.

In the present embodiment, the method for winding a copper alloy strip according to the present invention is described as being applied to the manufacturing apparatus for manufacturing the small slit coil C described with reference to FIGS. I do. Therefore, description of the overall configuration of the coil manufacturing apparatus will be omitted.

FIG. 1 shows a tension generator 30 and a metal strip winding device 20 for carrying out the present invention. According to the present embodiment, a belt bridle (trade name) manufactured by Japan Development Consultant Co., Ltd. is suitably used as the tension generating device 30 as in the related art. That is, the tension generating device 30 includes the upper belt unit 30A and the lower belt unit 30B that are arranged to face both sides of the metal strip J that is a copper alloy strip, and the pressing units 43 and 44.

The upper belt unit 30A includes rollers 31 and 31 arranged in parallel with each other.
An upper belt means 33 composed of a single or a plurality of belts is stretched between them. A flat upper slider 34 is arranged inside the upper belt means 33 stretched between the rollers 31, 31 for slidingly guiding the belt running portion on the side facing the metal strip J. You. The lower belt unit 30B also includes rollers 32, 32 arranged in parallel, and a lower belt means 35 composed of a single or a plurality of belts is stretched between the rollers 32, 32. Both rollers 32, 3
Inside the lower belt means 35 stretched between the two, a flat-plate-shaped lower slider 36 for slidingly guiding the belt traveling portion on the side facing the metal strip J is arranged.

According to the present embodiment, as in the prior art, as shown in FIG.
And an upper support 37 for supporting the lower belt unit 3.
OB includes a lower support 38 that supports the lower slider 36, and the lower support 38 is fixedly attached to the apparatus main body 100.

However, according to the present invention, unlike the related art, the upper support 37 is not attached to the lower support 38 via the elastic members 41 and 42 (FIG. 4).
As shown in (1), the elastic members 41 and 42 are not used, and the upper support 37 is merely connected to the pressing means 43 and 44 which are air cylinders in this embodiment. Therefore, by driving the air cylinders 43 and 44, the upper support 3
7, that is, the upper slider 34 is pressed toward the lower support base 38. As the pressing means 43, 44, a hydraulic cylinder, an airbag, or the like may be used.

In the above embodiment, the upper slider 34 moves toward the lower belt unit 30B, that is, toward the lower slider 36. However, the lower slider 36 moves toward the upper belt unit 30A, that is, toward the upper slider 34. The upper and lower sliders 34 and 36 may be configured to move toward each other as needed. With such a configuration, the upper and lower belt means 3
A tensile force can be applied to the metal strip J passing between 3, 35.

According to the present invention, as described above, the elastic members 41 and 42, which have been used to support the upper support 37 on the lower support 38, are not used. It is possible to suitably avoid a change in the tensile force on the metal strip J caused by a change with time.

Further, according to the present invention, the tension generator 30
A tension detecting means 50 is arranged between the winding device 20 and the winding device 20. In this embodiment, a roller 51 is pressed against the metal strip J, and the roller 51 is driven by a drive motor (not shown). A load cell configured to detect a current value and measure a tensile force was used. Alternatively, it is also possible to detect the torque of the drive motor that drives the winding device 20 and calculate and determine the pulling force from this torque.

As described above, the tension detecting means 50 detects the tensile force applied to the metal strip J by the tension generating device 30, and sends the detected tensile force signal to the control device 60.

The control device 60 compares this signal with a set value, and in this embodiment, controls the air supply pressure to the air cylinders 43 and 44. Thereby, the tension generator 30
This controls the tensile force imparting force to the metal strip J.

In the above embodiment, the tension generator 30 has been described as being configured to press the metal strip J by the upper and lower belt means 33, 35, but the metal strip J is held by the pad means or the roller means. Alternatively, it may be configured to be pressed.

In the present invention, the metal strip is a copper alloy strip,
In particular, it is a strip made of phosphor bronze or brass, and in addition to a bare material, it can be applied very effectively to a case where a surface treatment such as tin plating, solder plating or silver plating has been performed. is there.

[0032]

As described above, according to the present invention, the unit tension at the time of producing a coil by using a copper alloy strip with a winding device is described .
Down is 2.0kg / mm ² or less, 0.5kg / mm ² or more
To make a copper alloy coil for multi-coil.
In the method for winding a copper alloy strip for manufacturing , a tension generator is used to apply a tensile force to the copper alloy strip by a tension generator when the copper alloy strip is wound by a winding device. The tensile force of the copper alloy strip is detected by the tension detecting means provided between the copper alloy strip and the tensile force applied to the copper alloy strip by the tension generator based on the detected tensile force .
The tension generators are placed opposite each other on both sides of the copper alloy strip.
Belt unit and lower belt unit, and pressing means
Has an upper belt unit between rollers arranged in parallel
The upper belt means is stretched on the upper belt means, and
The upper belt means on the side facing the copper alloy strip
An upper slider that slides and guides the
The knit has a lower belt means between rollers arranged in parallel.
The copper alloy strip is installed inside the stretched lower belt means.
Sliding guide of the running part of the lower belt means on the side facing the material
A lower slider is provided, and the upper slider and / or lower
Press the ida relatively to each other by the pressing means,
Copper alloy strip passing between upper and lower belt means
Since it is configured to impart a tensile force to press in means (1) always 2.0 kg / mm ² or less, 0.5 kg / mm ²
The copper alloy strip is wound with the above constant unit tension.
It can be taken, there is no winding loose, and wide strip material
Even when winding, uneven coil edges may occur.
A copper alloy coil for multi-coil
Can be. (2) Tin plating, solder plating or silver plating
Even when surface treatment such as
Multi-coil that can be continuously wound
Copper alloy coils can be manufactured. Such effects
Can be played.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram for carrying out a copper alloy strip winding method according to the present invention.

FIG. 2 is a cross-sectional view of one embodiment of a tension generator.

FIG. 3 is a front view of the tension generating device of FIG. 2;

FIG. 4 is a front view of a conventional tension generating device.

FIG. 5 is a schematic configuration diagram of a copper alloy coil manufacturing apparatus for carrying out the copper alloy strip material winding method of the present invention.

FIG. 6 is a perspective view illustrating a form of a multi-coil.

[Explanation of symbols]

 Reference Signs List 20 winding device 30 tension generating device 30A upper belt unit 30B lower belt unit 31, 32 roller 33 upper belt means 34 upper slider 35 lower belt means 36 lower slider 37 upper support base 38 lower support base 41, 42 elastic members 43, 44 Pressing means 50 Tension detecting means 60 Control means

────────────────────────────────────────────────── ─── Continued on the front page (72) Nobuyuki Tamura, Inventor No. 3 Kurami, Samukawa-cho, Koza-gun, Kanagawa Prefecture Nippon Mining & Metals Co., Ltd. Kurami Factory (56) References JP-A-7-328719 (JP, A) JP-A-1 -95834 (JP, A) JP-A-62-285608 (JP, A) JP-A-51-108650 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B65H 59/16 B65H 59/36

Claims (4)

(57) [Claims] 1. A coil is formed from a copper alloy strip by a winding device.
Unit tension when there is 2.0kg / mm ² or less,
Wound up in succession at 0.5kg / mm ² or more, multi
In the copper alloy strip material winding method for producing a copper alloy coil coil, a tensile force when winding the copper alloy strip material at the winding apparatus and applied to a copper alloy strip material at tension generating device, wherein Tension detection means provided between the tension generator and the winding device
The tensile force of the copper alloy strip is detected, and based on the detected tensile force, the tensile force applied to the copper alloy strip by the tension generator is controlled , and the tension generator is a copper alloy strip. Are located on opposite sides of the
Upper and lower belt units and pressing means
And the upper belt unit is arranged in parallel
An upper belt means is stretched between the rollers, and the stretched upper belt is
The inside of the tilting means is located in front of the side facing the copper alloy strip.
An upper slider is provided for slidingly guiding the traveling portion of the upper belt means.
And the lower belt unit is arranged in parallel.
Lower belt means is stretched between the rollers, and the stretched lower belt is
The inside of the tilting means is located in front of the side facing the copper alloy strip.
A lower slider is provided for slidingly guiding the traveling portion of the lower belt means.
The upper slider and / or the lower slider
By pressing relatively toward each other by the pressing means,
In addition, the copper alloy strip passing between the lower belt means, the upper, lower
It is characterized by applying tension by pressing with belt means
Copper alloy strip winding method. 2. The upper belt unit includes an upper support that supports the upper slider, the lower belt unit includes a lower support that supports the lower slider, and the pressing unit includes the upper support. 2. The method for winding a copper alloy strip according to claim 1, wherein the copper alloy is pressed toward the lower support. 3. The copper alloy strip is a bare material,
Has a surface treatment of tin plating, solder plating or silver plating
According to claim 1 or 2, characterized in that subjected
Copper alloy strip winding method. Wherein said copper alloy strip material is a copper alloy strip material winding method according to claim 3, characterized in that a phosphor bronze or brass.